CN113403125B

CN113403125B - Preparation process of lubricating oil improver

Info

Publication number: CN113403125B
Application number: CN202110543739.7A
Authority: CN
Inventors: 贺仲文
Original assignee: Zhaofeng Chongqing Technology Co ltd
Current assignee: Zhaofeng Chongqing Technology Co ltd
Priority date: 2021-05-19
Filing date: 2021-05-19
Publication date: 2022-10-18
Anticipated expiration: 2041-05-19
Also published as: CN113403125A

Abstract

The invention discloses a preparation process of a lubricating oil improver, which comprises the following steps of firstly, adding a modified graphene additive and base oil into a reaction kettle, and primarily stirring to obtain a mixture; then, performing electromagnetic treatment on the mixture to magnetize the ferromagnetic metal impurities in the mixture; then the magnetized metal impurities in the mixture are filtered out through a strong magnetic filter; then filtering insoluble solid particle impurities in the mixture by a precision filter; finally, the mixture is thoroughly stirred by a homogenizing emulsifying pump, so that the modified graphene additive is thoroughly and uniformly dispersed in the base oil; the steps are circulated for many times, and finally the lubricating oil improver taking the graphene as the main body is obtained; in the invention, the impurity content in the finally obtained lubricating oil improver is greatly reduced through strong magnetic filtration and precise filtration, and the modified graphene additive is thoroughly and uniformly dispersed in the base oil through preliminary stirring of a reaction kettle and thorough stirring of a homogenizing emulsifying pump.

Description

Preparation process of lubricating oil improver

Technical Field

The invention relates to the technical field of lubricating oil production, in particular to a preparation process of a lubricating oil improver.

Background

The lubricating oil is a liquid or semisolid lubricating agent which is used on various types of automobiles and mechanical equipment to reduce friction and protect machinery and workpieces, and mainly plays roles of lubrication, auxiliary cooling, rust prevention, cleaning, sealing, buffering and the like. The lubricating oil is used between two objects which move relatively, and has the function of reducing friction and abrasion caused by the contact of the two objects, namely the lubricating oil.

Graphene (Graphene) is a new material having sp hybridized connected carbon atoms densely packed into a single-layer two-dimensional honeycomb lattice structure. At present, more and more lubricating oil manufacturers improve the performance of the lubricating oil by adding graphene into the lubricating oil, the modified graphene in the lubricating oil is quickly adsorbed to a friction surface, so that the graphene forms a new friction surface on the friction surface, the hardness of the graphene is more than one hundred times of that of steel, the friction coefficient of the graphene is more close to a super-lubrication state, the friction resistance is greatly reduced, meanwhile, the graphene has higher friction and friction resistance performance, the abrasion between moving machines is reduced, the service life of the machines is prolonged, the moving resistance is reduced, the energy conversion efficiency is improved, and the machines save oil more.

Although the nonpolar group of the graphene can enable the graphene to be dissolved in the base oil with the nonpolar group, the graphene has the characteristic of mutual attraction, if the graphene is directly added into the lubricating oil, agglomeration and precipitation phenomena can occur, the graphene in the lubricating oil cannot play the role, and the lubricating oil cannot be used at all. In order to make graphene in the lubricating oil play its role, graphene must be modified first to change the characteristic of mutual attraction of graphene, so as to obtain a modified graphene additive, so that the modified graphene additive does not agglomerate and precipitate in the lubricating oil, and then the modified graphene additive and base oil are uniformly mixed to obtain the lubricating oil improver taking graphene as a main body.

At present, for a lubricating oil improver taking graphene as a main body, a modified graphene additive and base oil are generally directly added into a stirring device for repeated mixing and stirring, and then the lubricating oil improver is obtained; although the method is simple and direct, the modified graphene additive and the base oil are only mixed by a common stirring device, graphene is difficult to be uniformly dispersed in the base oil, the modified graphene additive and the base oil are not filtered, large particles formed by agglomeration of multiple layers of graphene and other solid particle impurities may exist in the obtained lubricating oil improver, and the performance and the quality of the final finished lubricating oil are directly influenced by the lubricating oil improver containing the solid particles.

Disclosure of Invention

Aiming at the problems in the prior art, the technical problems to be solved by the invention are as follows: the existing method for preparing the lubricating oil improver has the problems of uneven graphene dispersion and more impurities.

In order to solve the technical problems, the invention adopts the following technical scheme: a preparation process of a lubricating oil improver comprises the following steps:

s1: adding a modified graphene additive and base oil into a reaction kettle, and carrying out primary stirring to obtain a mixture, wherein the mass ratio of graphene in the modified graphene additive to the base oil is 0.001% -0.1%. The modified graphene additive is in the prior art and is commonly used for preparing lubricating oil.

S2: and (2) performing electromagnetic treatment on the mixture obtained in the step (S1) to magnetize the ferromagnetic metal impurities in the mixture, wherein the magnetic induction intensity of the electromagnetic treatment is 10-100 Gs, and the time of the electromagnetic treatment is 0.2-0.5 hour.

S3: and (3) performing strong magnetic filtration on the mixture after the S2 treatment by using a strong magnetic filter to remove magnetized metal impurities in the mixture, wherein the magnetic induction intensity of the strong magnetic filtration is 200-350 Gs, and the time of the strong magnetic filtration is 0.3-0.5 hour.

S4: and (3) performing microfiltration on the mixture treated by the S3 through a microfiltration machine to remove insoluble solid particle impurities in the mixture, wherein the filtration precision of the microfiltration machine is 10-15 um.

S5: and (3) completely stirring the mixture treated in the step (S4) by a homogenizing emulsification pump, and subjecting graphene in the mixture to the comprehensive actions of strong shearing, centrifugal extrusion, liquid layer friction, impact tearing and turbulent flow in a narrow gap between a stator and a rotor of the homogenizing emulsification pump to obtain the emulsion formed by mixing the graphene and the base oil.

S6: and circulating the S1-S5 for 5-10 times to obtain the lubricating oil improver mainly containing graphene.

In the preparation process of the lubricating oil modifier, firstly, the modified graphene additive and base oil are mixed to obtain a mixture, ferromagnetic metal in the mixture is magnetized through electromagnetic treatment, then ferromagnetic metal impurities in the mixture are removed through a strong magnetic filter, the mixture is further filtered through a precise filter, fine insoluble solid particle impurities in the mixture are removed, finally, the mixture is further stirred through a homogenizing emulsifying pump, so that the modified graphene additive is uniformly dispersed in the base oil to form emulsion with the base oil, and the lubricating oil modifier is obtained after multiple cycles. Compared with the conventional method for preparing the lubricating oil improver by repeatedly and simply stirring, the method disclosed by the invention not only thoroughly mixes the graphene and the base oil, but also repeatedly filters the mixture formed by the graphene and the base oil, so that the impurity content in the finally obtained lubricating oil improver is extremely low, the performance of the lubricating oil improver is greatly improved, and the finally obtained lubricating oil finished product has better performance.

Preferably, the mixture is heated to 40 to 60 ℃ before the step S3.

The mixture is heated before filtration, so that the modified graphene additive can be better dispersed in the base oil, the flowing property of the mixture is improved, the speed of the subsequent filtration step is convenient to increase, the mixture is subjected to heat preservation in the whole circulation process, and the mixing effect of the mixture in the subsequent circulation process is prevented from being deteriorated due to temperature reduction in the circulation process. Since the magnetic substance is easily demagnetized when the temperature exceeds 100 ℃, the heating temperature is not preferably too high in order to avoid the failure of the magnetization of the ferromagnetic metal before heating, and the heating is preferably performed to 40 ℃ to 60 ℃ in order to maximally retain the magnetic property of the ferromagnetic metal, improve the fluidity of the mixture, and improve the mixing effect.

Preferably, the strong magnetizer in the step S3 includes a housing, a feeding port is fixedly connected to the top of the housing, a discharging port is fixedly connected to the bottom of the housing, an electromagnetic valve is arranged outside the discharging port, a filtering mechanism is fixedly arranged inside the housing, and the filtering mechanism extends out of the housing.

The filtering mechanism comprises a motor, the motor is fixedly arranged on one side of the shell, the motor is fixedly connected with a first rotating rod through an output shaft, the first rotating rod penetrates through one side wall of the shell and extends into the shell, and the first rotating rod is connected with one side wall of the shell through a bearing.

The first reciprocal lead screw of first rotation pole one side fixedly connected with, the outside cover of first reciprocal lead screw is equipped with primary shaft bearing, primary shaft bearing passes through ball nut pair with first reciprocal lead screw and is connected, the fixed limiting plate that is equipped with in casing inner chamber top, the spacing groove has been seted up to the limiting plate bottom, the fixed riser that is equipped with in primary shaft bearing top, the fixed stopper that is equipped with in primary shaft bearing top, the spacing inslot portion is located to the stopper, primary shaft bearing front side fixedly connected with fixed plate, fixed plate front side fixedly connected with rack.

The improved shell comprises a shell body and is characterized in that a first vertical rod is arranged at the top of the inner cavity of the shell body, the first vertical rod is connected with the top of the inner cavity of the shell body through a bearing, a first gear is arranged on the outer portion of the first vertical rod, the first gear is arranged on the front side of a rack, the first gear is meshed with the rack, a first magnetic stripe is fixedly connected to the bottom of the first rotating rod, and a plurality of first transverse magnetic stripes are fixedly arranged on the outer portion of the first magnetic stripe.

The utility model discloses a filter, including casing, the equal fixedly connected with in casing bottom filters the frame, filter the frame bottom fixedly connected with filter screen, filter the inside baffle that is equipped with of frame, the baffle runs through filter frame one side and extends the filter frame outside.

The utility model discloses a reciprocating screw compressor casing, including casing inner chamber, casing, the reciprocating screw of second, second bearing, first bearing, second riser bottom fixedly connected with slider, the slider is located inside the spout, the fixed first L shaped plate that is equipped with in second bearing top, first L shaped plate one side and baffle one side fixed connection.

First reciprocal lead screw one side fixedly connected with second dwang, the second dwang runs through a casing lateral wall and extends the casing outside, the second dwang passes through the bearing with a casing lateral wall and is connected, second dwang external fixation is equipped with the second framework, the second dwang passes through the bearing with the second framework and is connected, second dwang external fixation is equipped with fourth bevel gear, the inside third dwang that still is equipped with of second framework, the third dwang runs through second framework bottom and extends the second framework outside, the third dwang passes through the bearing with second framework bottom and is connected, the fixed fifth bevel gear that is equipped with in third dwang top, fourth bevel gear bottom is located to fifth bevel gear, fifth bevel gear meshes with fourth bevel gear mutually.

The third dwang bottom is equipped with the fourth dwang, the third dwang passes through one-way bearing with the fourth dwang and is connected, the fourth dwang external fixation is equipped with the third framework, the fourth dwang passes through the bearing with the third framework and is connected, the fixed sixth bevel gear that is equipped with in fourth dwang bottom.

And a fifth rotating rod is fixedly connected to one side of the second reciprocating screw rod, penetrates through one side wall of the shell and extends out of the shell, the fifth rotating rod is connected with one side wall of the shell through a bearing, a seventh bevel gear is fixedly connected to one side of the fifth rotating rod, the seventh bevel gear is arranged at the bottom of the sixth bevel gear, and the sixth bevel gear is meshed with the seventh bevel gear.

The ferromagnetic filter provided by the invention effectively adsorbs the ferromagnetic elements in the mixture treated by S2 through the design of the filtering mechanism, and simultaneously can filter substances except the ferromagnetic elements in the mixed solution again after adsorption, which is different from the traditional filtering mode, namely the mixed solution after filtration is manually discharged after the ferromagnetic elements are filtered, and is singly filtered, so that the labor and time are consumed.

Preferably, in the above strong magnetizer, a first connecting rod is fixedly connected to the bottom of the first magnetic stripe, a first bevel gear is fixedly connected to the bottom of the first connecting rod, a first frame body is arranged outside the first connecting rod, the first connecting rod is connected to the top of the first frame body through a bearing, a supporting rod is arranged inside the first frame body, the supporting rod is connected to one side of the first frame body through a bearing, a second bevel gear is fixedly arranged on one side of the supporting rod, the second bevel gear is arranged at the bottom of the first bevel gear, and the first bevel gear is meshed with the second bevel gear.

The second connecting rod is arranged inside the first frame body, penetrates through the bottom of the first frame body and is connected with the bottom of the first frame body through a bearing, a third bevel gear is fixedly connected to the top of the second connecting rod, the third bevel gear is arranged at the bottom of the second bevel gear, the third bevel gear is meshed with the second bevel gear, a second magnetic strip is fixedly connected to the bottom of the second connecting rod, and a plurality of second transverse magnetic strips are fixedly connected to the outer portion of the second magnetic strip.

Establish the second magnetic stripe through adding in the position that is close to the baffle to through a plurality of bevel gear transmissions, make the second magnetic stripe rotate along with first montant, strengthen the absorption to ferromagnetic impurity in the mixed liquid that is close to the baffle position, make mixed liquid when through baffle position downflow, ferromagnetic impurity at utmost breaks away from with mixed liquid, strengthens this strong magnetic filter's filter effect.

Preferably, in the strong magnetizer, two second vertical rods are arranged at the top of an inner cavity of the shell and are connected with the top of the inner cavity of the shell through bearings, two second gears are fixedly arranged outside the second vertical rods respectively and are arranged on the front side of the rack, the two second gears are meshed with the rack, two third magnetic stripes are fixedly connected to the bottoms of the second vertical rods respectively, and a plurality of third transverse magnetic stripes are fixedly arranged outside the third magnetic stripes respectively. Through setting up two montants, all set up the third magnetic stripe in two montant bottoms to further strengthen this strong magnetic filter's filtering quality.

Preferably, in the above-described magnetizer, a first sealing door is fixedly provided at the front side of the casing, the first sealing door is connected to the front side of the casing by a hinge, a second sealing door is fixedly provided at the front side of the filter frame, and the second sealing door is connected to the front side of the filter frame by a hinge. Through setting up first sealing door and second sealing door person of being convenient for to the material that filters out clearance.

Preferably, in the above strong magnetizer, the filtering mechanism further includes a supporting member, the supporting member includes four supporting columns, and the four supporting columns are respectively fixed to four corners of the bottom of the casing. Through setting up the supporting component, make the use of strong magnetic filter more reliable and more stable.

Preferably, the precision filter in the step S3 includes a filter box, a position fixedly connected with and a water outlet pipe communicated with the inside of the filter box are close to the bottom on the right side of the filter box, a position fixedly connected with and a water inlet pipe communicated with the inside of the filter box are close to the top on the rear side of the filter box, a fixed box is fixedly connected to the top of the filter box, a protective cover is fixedly connected to one side of the filter box, and a motor is fixedly connected to one side of the protective cover.

The inside filtering mechanism that is equipped with of rose box, filtering mechanism includes first pivot, first pivot inlays to be established at the rose box top, first pivot top extends to the rose box top outside, the fixed cover in first pivot top is equipped with the bull stick, bull stick outside cover is equipped with two first connecting rods, two the first connecting rod outside all is connected with the second connecting rod, two movable tanks have been seted up at the rose box top the second connecting rod runs through two movable tanks respectively and extends to inside the rose box, two second connecting rod bottom fixedly connected with filter cartridge, the fixed filter screen that is equipped with of inlaying of filter cartridge bottom.

Inside first pivot bottom extends to the rose box, first pivot bottom fixedly connected with first bevel gear, first bevel gear bottom is equipped with second bevel gear, and first bevel gear is connected with second bevel gear meshing, the fixed cover of second bevel gear inboard is equipped with the second pivot, the filter box all runs through at second pivot both ends, and second pivot one end is connected at rose box opposite side inner wall, and the safety cover is run through to the second pivot other end, second pivot other end fixed connection is at the motor output.

The fixed cover in the second pivot outside is equipped with first belt pulley, first belt pulley is located inside the safety cover, the inside third pivot that inlays of rose box, the fixed cover in the third pivot outside is equipped with the second belt pulley, and first belt pulley and the second belt pulley outside all overlaps and is equipped with the belt, first belt pulley passes through belt drive with the second belt pulley and is connected, the fixed cover in the third pivot outside is equipped with two eccentric wheels, two the eccentric wheel is located the filter box bottom.

The junction of first pivot, second pivot and third pivot and rose box all passes through antifriction bearing swing joint, first connecting rod all passes through antifriction bearing swing joint with the junction of two second connecting rods.

According to the invention, the precision filter drives the second rotating shaft to rotate through the work of the motor, the second rotating shaft drives the first belt pulley to rotate, the first belt pulley drives the second belt pulley to rotate, the second belt pulley drives the third rotating shaft to rotate, the third rotating shaft drives the two eccentric wheels to rotate, so that the filter screen is flapped, the second rotating shaft drives the second bevel gear to rotate, the second bevel gear drives the first bevel gear to rotate, the first bevel gear drives the first rotating shaft to rotate, the first rotating shaft drives the rotating rod to rotate, the rotating rod drives the first connecting rod and the second connecting rod to move left and right, and the second connecting rod moves to drive the filter box to move left and right, so that the filter screen is screened, the filter screen is prevented from being blocked, the filtering effect is improved, the filtering time is saved, and convenience is brought to a user.

Preferably, in the precision filter, a fixing frame is fixedly embedded in the filter box, the fixing frame is located at the bottom of the third rotating shaft, and activated carbon is embedded in the fixing frame. The activated carbon can adsorb micro particles or other impurities in the mixed solution, so that the filtering performance of the precision filter is further improved.

Preferably, in the precision filter, sliding blocks are fixedly connected to two sides of the filter box, two sliding grooves are formed in the filter box, and the two sliding blocks are embedded in the two sliding grooves respectively. Through the cooperation of two sliders and two spouts, when the filter cartridge moved about, the slider slided in the spout, provides certain holding power for the filter cartridge simultaneously to improve this precision filter's stability.

Compared with the prior art, the invention has at least the following advantages:

1. in the preparation process of the lubricating oil modifier, firstly, the modified graphene additive and base oil are mixed to obtain a mixture, ferromagnetic metal in the mixture is magnetized through electromagnetic treatment, then ferromagnetic metal impurities in the mixture are removed through a strong magnetic filter, the mixture is further filtered through a precise filter, fine insoluble solid particle impurities in the mixture are removed, finally, the mixture is further stirred through a homogenizing emulsifying pump, so that the modified graphene additive is uniformly dispersed in the base oil to form emulsion with the base oil, and the lubricating oil modifier is obtained after multiple cycles. Compared with the conventional method for preparing the lubricating oil improver by simply stirring repeatedly, the method disclosed by the invention not only thoroughly mixes the graphene and the base oil, but also repeatedly filters the mixture formed by the graphene and the base oil, so that the impurity content in the finally obtained lubricating oil improver is extremely low, the performance of the lubricating oil improver is greatly improved, and the finally obtained lubricating oil finished product has better performance.

2. According to the invention, the mixture is heated before filtration, so that the modified graphene additive can be better dispersed in the base oil, the flowing property of the mixture is improved, the speed of the subsequent filtration step is convenient to increase, the mixture is subjected to a heat preservation effect in the whole circulation process, and the mixing effect of the mixture in the subsequent circulation process is prevented from being deteriorated due to the temperature reduction in the circulation process. Since the magnetic substance is easily demagnetized when the temperature exceeds 100 ℃, the temperature to be heated is not preferably too high in order to avoid the failure of the magnetization of the ferromagnetic metal before heating, and the temperature is preferably heated to 40 to 60 ℃ in order to maximally retain the magnetic property of the ferromagnetic metal, improve the fluidity of the mixture, and improve the mixing effect.

3. The ferromagnetic filter enables the ferromagnetic elements in the mixed liquid to be effectively adsorbed through the design of the filtering mechanism, and simultaneously can filter substances except the ferromagnetic elements in the mixed liquid again after the ferromagnetic elements are well adsorbed, which is different from the traditional filtering mode, namely the filtered mixed liquid is manually discharged after the ferromagnetic elements are well filtered and is independently filtered, so that manpower and time are consumed.

4. According to the invention, the precision filter drives the second rotating shaft to rotate through the work of the motor, the second rotating shaft drives the first belt pulley to rotate, the first belt pulley drives the second belt pulley to rotate, the second belt pulley drives the third rotating shaft to rotate, the third rotating shaft drives the two eccentric wheels to rotate, so that the filter screen is flapped, the second rotating shaft drives the second bevel gear to rotate, the second bevel gear drives the first bevel gear to rotate, the first bevel gear drives the first rotating shaft to rotate, the first rotating shaft drives the rotating rod to rotate, the rotating rod drives the first connecting rod and the second connecting rod to move left and right, and the second connecting rod moves to drive the filter box to move left and right, so that the filter screen is screened, the filter screen is prevented from being blocked, the filtering effect is improved, the filtering time is saved, and convenience is brought to a user.

Drawings

FIG. 1 is a flow diagram of the process of the present invention.

FIG. 2 is a front sectional view of the strong magnetic filter.

Fig. 3 is a front view of the strong magnetic filter.

Fig. 4 is a front view of a filter frame in the strong magnetic filter.

FIG. 5 is a perspective view of a first magnetic stripe in the strong magnetic filter.

FIG. 6 is a left side cross-sectional view of the rack in the ferromagnetic filter.

FIG. 7 is a front cross-sectional view of the precision filter.

Fig. 8 is an enlarged view of fig. 7 at a.

Fig. 9 is a perspective view of the precision filter.

Figure 10 is a left side view of the precision filter.

FIG. 11 is a perspective view of a filter cassette in the precision filter.

Fig. 12 is a perspective view of an electromagnetic apparatus of the present invention.

FIG. 13 is a front cross-sectional view of an electromagnetic apparatus of the present invention.

Fig. 14 is an enlarged view of fig. 13 at C.

FIG. 15 is a perspective view of a stir bar of the electromagnetic apparatus of the present invention.

In the figure, 1 a-shell, 2 a-motor, 3 a-first rotating rod, 4 a-first reciprocating screw rod, 5 a-first bearing seat, 6 a-fixing plate, 7 a-rack, 8 a-first vertical rod, 9 a-first gear, 10 a-first magnetic strip, 11 a-first transverse magnetic strip, 12 a-first connecting rod, 13 a-first bevel gear, 14 a-first frame body, 15 a-supporting rod, 16 a-second bevel gear, 17 a-second connecting rod, 18 a-third bevel gear, 19 a-second magnetic strip, 20 a-second transverse magnetic strip, 21 a-inclined plate, 22 a-filter frame, 23 a-filter screen, 24 a-baffle, 25 a-second reciprocating screw rod, 26 a-bearing seat second shaft, 27 a-first L-rotating rod, 28 a-fifth rotating rod, 30 a-second rotating rod, 31 a-third rotating rod, 32 a-fourth rotating rod, 33 a-second vertical rod, 34 a-second gear, 35 a-third rotating rod, 36 a-second magnetic strip, and a supporting plate;

1 b-a filter box, 2 b-a protective cover, 3 b-a motor, 4 b-a first rotating shaft, 5 b-a rotating rod, 6 b-a first connecting rod, 7 b-a second connecting rod, 8 b-a filter box, 9 b-a first bevel gear, 10 b-a second bevel gear, 11 b-a second rotating shaft, 12 b-a first belt pulley, 13 b-a third rotating shaft, 14 b-two eccentric wheels, 15 b-a second belt pulley, 16 b-a fixed frame, 17 b-a filter screen, 18 b-a sliding block, 19 b-a water outlet pipe, 20 b-a water inlet pipe, 21 b-a belt and 22 b-a fixed box;

the device comprises a shell 1c, a stirring box 2c, a magnetizing box 3c, a motor 4c, a rotating shaft I5 c, a rotating shaft II 6c, a ring-shaped toothed plate I7 c, a gear I8 c, a bevel gear I9 c, a bevel gear II 10c, a rotating shaft III 11c, a reciprocating screw rod 12c, a gear II 13c, a ring-shaped toothed plate II 14c, a bearing seat 15c, a limiting block 16c, a chain wheel 17c, a chain 18c, a sliding block 19c, a protective shell 20c, a magnetic plate 21c N, a magnetic plate 22c S, a feeding pipe 23c, a stirring rod 24c and heat dissipation holes 25c.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

For convenience of description, the following description concepts are introduced in the present writing:

in the present invention, 'front', 'rear', 'left', 'right', 'up', 'down' all refer to the orientation in fig. 2 and 7, wherein 'front' refers to being out of the plane of the paper in fig. 2 and 7 and 'back' refers to being in the plane of the paper in fig. 2 and 7. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.

Referring to fig. 1-11, one embodiment of the present invention is provided: a preparation process of a lubricating oil improver comprises the following steps:

s1: adding a modified graphene additive and base oil into a reaction kettle, and carrying out primary stirring to obtain a mixture, wherein the mass ratio of graphene in the modified graphene additive to the base oil is 0.001% -0.1%. In specific implementation, the mass ratio of the graphene to the base oil may be 0.001%, 0.003%, 0.005%, 0.008%, 0.01%, 0.03%, 0.05%, 0.08%, or 0.1%.

S2: and (2) performing electromagnetic treatment on the mixture obtained in the step (S1) to magnetize the ferromagnetic metal impurities in the mixture, wherein the magnetic induction intensity of the electromagnetic treatment is 10-100 Gs, and the time of the electromagnetic treatment is 0.2-0.5 hour. Specifically, the magnetic induction intensity of the electromagnetic treatment may be 10Gs, 20Gs, 30Gs, 40Gs, 50Gs, 60Gs, 70Gs, 80Gs, 90Gs or 100Gs, and the time of the electromagnetic treatment may be 0.2, 0.25, 0.3, 0.35, 0.4, 0.45 or 0.5 hour.

S3: and (3) performing strong magnetic filtration on the mixture after the S2 treatment through a strong magnetic filter to remove magnetized metal impurities in the mixture, wherein the magnetic induction intensity of the strong magnetic filtration is 200-350 Gs, and the time of the strong magnetic filtration is 0.3-0.5 hour. In specific implementation, the magnetic induction intensity of the strong magnetic filtration can be 200, 225, 250, 275, 300, 325 or 350Gs, and the time of the strong magnetic filtration can be 0.3, 0.35, 0.4, 0.45 or 0.5 hour.

S4: and (4) performing precise filtration on the mixture treated by the S3 through a precise filter to remove insoluble solid particle impurities in the mixture, wherein the filtration precision of the precise filter is 10-15 um. In particular implementations, the precision filter can have a filtration precision of 10, 11, 12, 13, 14, or 15um.

S5: and (3) completely stirring the mixture treated by the step (S4) by a homogenizing emulsification pump, and subjecting graphene in the mixture to the comprehensive effects of strong shearing, centrifugal extrusion, liquid layer friction, impact tearing and turbulence in a narrow gap between a stator and a rotor of the homogenizing emulsification pump to obtain the emulsion formed by mixing the graphene and the base oil.

The modified graphene additive in the S1 is the prior art and is commonly used for preparing lubricating oil, the existing modified graphene additive can be selected in the S1, and the modified graphene additive prepared by a graphene modification process can also be used, wherein the graphene modification process comprises the following steps:

s11: preparing raw materials, wherein the raw materials comprise 8-15 parts by weight of expanded graphite and 45-60 parts by weight of industrial ammonia water. In specific implementation, the expanded graphite can be 8, 9, 10, 11, 12, 13, 14 or 15 parts, and the industrial ammonia water can be 45, 50, 55 or 60 parts.

S12: adding all the expanded graphite in the raw material S11 into a reaction kettle, simultaneously injecting industrial ammonia water into the reaction kettle, and stirring and mixing for 0.5-1 hour, wherein the weight part of the industrial ammonia water is 1-1.5 times of that of all the expanded graphite; so that all the expanded graphite is thoroughly soaked by the industrial ammonia water. In specific implementation, 1, 1.1, 1.2, 1.3, 1.4 or 1.4 times of the total weight of the expanded graphite in the industrial ammonia water is injected into the reaction kettle, and the stirring and mixing time can be 0.5, 0.6, 0.7, 0.8, 0.9 or 1 hour.

S13: and (3) injecting all the industrial ammonia water remaining after the step (S12) into a reaction kettle, stirring and mixing for 1-2 hours, and uniformly dispersing the expanded graphite in the industrial ammonia water to obtain a mixture of the expanded graphite and the industrial ammonia water. In specific embodiments, the time for mixing with stirring may be 1, 1.2, 1.4, 1.6, 1.8, or 2 hours.

S14: and (3) performing electromagnetic treatment on the mixture obtained in the step (S13) by using an electromagnetic device to magnetize the ferromagnetic metal impurities in the mixture, wherein the magnetic induction intensity of the electromagnetic treatment is 15-120 Gs, and the time of the electromagnetic treatment is 0.3-0.5 hour. In specific implementation, the magnetic induction intensity can be 15, 30, 45, 60, 75, 90, 105 or 120Gs, and the time for the electromagnetic treatment can be 0.3, 0.35, 0.4, 0.45 or 0.5 hour.

S15: and (3) performing strong magnetic filtration on the mixture treated in the step (S14) by using a strong magnetic filter to remove magnetized metal impurities in the mixture, wherein the magnetic induction intensity of the strong magnetic filtration is 200-350 Gs, and the time of the electromagnetic treatment is 0.3-0.5 hour. In specific implementation, the magnetic induction intensity of the strong magnetic filtration can be 200, 225, 250, 275, 300, 325 or 350Gs, and the time of the electromagnetic treatment can be 0.3, 0.35, 0.4, 0.45 or 0.5 hour.

S16: and (3) injecting the mixture obtained in the step (S15) into an oscillation microwave processor for oscillation and microwave radiation treatment, wherein the treatment time is 1.5-3 hours, so that the van der Waals force between graphene sheet layers in the expanded graphite is destroyed, and the modified graphene additive with the graphene stably dispersed in the industrial ammonia water is obtained. In particular, the treatment time may be 1.5, 1.8, 2, 2.2, 2.4, 2.6, 2.8 or 3 hours.

In specific implementation, the electromagnetic treatment in S2 uses an electromagnetic device, the electromagnetic device is the prior art, and the device for electromagnetic treatment in the present invention may use the prior art, or may use one of the following electromagnetic devices:

the electromagnetic device includes shell 1c, the inside agitator tank 2c that is equipped with that inlays of shell 1c, the outside cover of agitator tank 2c is equipped with magnetization case 3c, magnetization case 3c passes through bearing swing joint with agitator tank 2c, the shell 1c top outside is equipped with inlet pipe 23c, inlet pipe 23c extends to inside agitator tank 2c, the inside drive mechanism that is equipped with of shell 1 c.

Drive mechanism includes motor 4c, motor 4c fixed mounting is in shell 1c one side, motor 4c output shaft fixedly connected with pivot two 6c, pivot two 6c extend to inside the shell 1c, the external fixed cover of magnetization case 3c is equipped with annular toothed plate one 7c, the external fixed cover of pivot two 6c is equipped with gear one 8c, gear one 8c inlays to be established inside annular toothed plate one 7c and meshes mutually with annular toothed plate one 7 c.

The first bevel gear 9c is fixedly sleeved outside the second rotating shaft 6c, the first bevel gear 9c is located on one side of the first gear 8c, the second bevel gear 10c is arranged on one side of the first bevel gear 9c, the second bevel gear 10c is meshed with the first bevel gear 9c, the third rotating shaft 11c is fixedly connected to the bottom of the second bevel gear 10c, a cavity is formed in the bottom of the shell 1c, and the bottom end of the third rotating shaft 11c extends into the cavity.

Inside pivot 5c that is equipped with of agitator tank 2c, a pivot 5c top extends to agitator tank 2c top, inside a pivot 5c bottom extends to the cavity, a pivot 5c outside is equipped with stirring part, the outside three 11c bottom of a pivot 5c outside and pivot outside all fixed cover are equipped with sprocket 17c, sprocket 17c is located inside the cavity, two sprocket 17c outside all overlaps and is equipped with chain 18c, two through the drive of chain 18c connection between the sprocket 17 c.

The inside two magnetization subassemblies that are equipped with of magnetization case 3c, two magnetization subassemblies are the symmetric form and distribute in agitator tank 2c both sides, the magnetization subassembly includes reciprocal lead screw 12c, reciprocal lead screw 12c bottom extends to magnetization case 3c bottom, reciprocal lead screw 12c top extends to the magnetization case 3c top outside, the outside fixed cover in reciprocal lead screw 12c top is equipped with two gears 13c, shell 1c top inner wall fixedly connected with annular toothed plate two 14c, annular toothed plate two 14c is located the agitator tank 2c outside, two 13c inlays to be established at annular toothed plate two 14c inside and mesh mutually with annular toothed plate two 14 c.

Outside cover of reciprocal lead screw 12c is equipped with bearing frame 15c, bearing frame 15c passes through ball nut pair with reciprocal lead screw 12c and is connected, one of them bearing frame 15c one side fixedly connected with N utmost point magnetic sheet 21c, another bearing frame 15c one side fixedly connected with S utmost point magnetic sheet 22c, the spacing groove has all been seted up to magnetization case 3c both sides, bearing frame 15c one side fixedly connected with stopper 16c, stopper 16c inlays to be established at corresponding spacing inslot portion, stopper 16c with correspond the spacing groove phase-match.

In the electromagnetic device, the bottom of the magnetizing box 3c is fixedly connected with two sliding blocks 19c, the inner wall of the bottom of the shell 1c is provided with an annular sliding groove, the two sliding blocks 19c are embedded inside the annular sliding groove, and the sliding blocks 19c are matched with the annular sliding groove.

In the electromagnetic device, a protective shell 20c is fixedly connected to one side of the shell 1c, the protective shell 20c is sleeved outside the motor 4c, and a plurality of heat dissipation holes 25c are formed in the top and the bottom of the protective shell 20 c.

In the electromagnetic device, the joint of the first rotating shaft 5c, the shell 1c and the stirring box 2c is movably connected through a bearing, the joint of the second rotating shaft 6c and the shell 1c is movably connected through a bearing, the joint of the third rotating shaft 11c and the shell 1c is movably connected through a bearing, and the joint of the reciprocating lead screw 12c and the magnetizing box 3c is movably connected through a bearing.

In the above electromagnetic device, the stirring member includes a plurality of stirring rods 24c, the plurality of stirring rods 24c are located inside the stirring box 2c, the plurality of stirring rods 24c are all fixedly connected to the outside of the first rotating shaft 5c, and the plurality of stirring rods 24c are bent.

Further, before the step S3, the mixture is heated to 40-60 ℃.

Further, the strong magnetizer in the step S3 comprises a shell 1a, a feeding port is fixedly connected to the top of the shell 1a, a discharging port is fixedly connected to the bottom of the shell 1a, an electromagnetic valve is arranged outside the discharging port, a filtering mechanism is fixedly arranged inside the shell 1a, and the filtering mechanism extends out of the shell 1a.

The filtering mechanism comprises a motor 2a, the motor 2a is fixedly arranged on one side of the shell 1a, the motor 2a is fixedly connected with a first rotating rod 3a through an output shaft, the first rotating rod 3a penetrates through one side wall of the shell 1a and extends into the shell 1a, and the first rotating rod 3a is connected with one side wall of the shell 1a through a bearing.

First reciprocal lead screw 4a of first rotation pole 3a one side fixedly connected with, the outside cover of first reciprocal lead screw 4a is equipped with primary shaft bearing 5a, primary shaft bearing 5a passes through ball nut pair with first reciprocal lead screw 4a and is connected, the fixed limiting plate 36a that is equipped with in 1a inner chamber top of casing, the spacing groove has been seted up to limiting plate 36a bottom, the fixed first riser that is equipped with in primary shaft bearing 5a top, the fixed stopper that is equipped with in first riser top, the limiting inslot is located to the stopper, primary shaft bearing 5a front side fixedly connected with fixed plate 6a, fixed plate 6a front side fixedly connected with rack 7a.

The utility model discloses a rack, including casing 1a, rack 7a, first gear 9a, first montant 8a and casing 1a inner chamber top, first montant 8a external fixation is equipped with first gear 9a, rack 7a front side is located to first gear 9a, first gear 9a meshes with rack 7a mutually, first rotation pole 3a bottom fixedly connected with first magnetic stripe 10a, first magnetic stripe 10a external fixation is equipped with a plurality of first horizontal magnetic stripes 11a.

The utility model discloses a filter, including casing 1a, equal fixedly connected with in swash plate 21a bottom filters frame 22a, filters frame 22a bottom fixedly connected with filter screen 23a, filter frame 22a is inside to be equipped with baffle 24a, baffle 24a runs through and filters frame 22a one side and extend and filter frame 22a outside that the casing is inside fixed to be equipped with two swash plates 21a, two swash plate 21 a.

The utility model discloses a reciprocating screw rod, including casing 1a, reciprocal lead screw 25a of second, second bearing seat 26a is equipped with to the outside cover of reciprocal lead screw 25a of second, and second bearing seat 26a passes through ball nut pair with reciprocal lead screw 25a and is connected, the fixed second riser that is equipped with in second bearing seat 26a bottom, second riser bottom fixedly connected with slider, the slider is located inside the spout, the fixed first L shaped plate 27a that is equipped with in second bearing seat 26a top, first L shaped plate 27a one side and baffle 24a one side fixed connection of inner chamber of casing 1a.

First reciprocal lead screw 4a one side fixedly connected with second dwang 30a, second dwang 30a runs through casing 1a lateral wall and extends casing 1a outside, second dwang 30a passes through the bearing with casing 1a lateral wall and is connected, second dwang 30a external fixation is equipped with the second framework, second dwang 30a passes through the bearing with the second framework and is connected, second dwang 30a external fixation is equipped with fourth bevel gear, the inside third dwang 31a that still is equipped with of second framework, third dwang 31a runs through second framework bottom and extends the second framework outside, third dwang 31a passes through the bearing with second framework bottom and is connected, the fixed fifth bevel gear that is equipped with in third dwang 31a top, fourth bevel gear bottom is located to fifth bevel gear, fifth bevel gear meshes with fourth bevel gear mutually.

Third dwang 31a bottom is equipped with fourth dwang 32a, third dwang 31a is connected through one-way bearing with fourth dwang 32a, fourth dwang 32a external fixation is equipped with the third framework, fourth dwang 32a passes through the bearing with the third framework and is connected, fourth dwang 32a bottom is fixed and is equipped with sixth bevel gear.

One side of the second reciprocating screw rod 25a is fixedly connected with a fifth rotating rod 28a, the fifth rotating rod 28a penetrates through one side wall of the shell 1a and extends out of the shell 1a, the fifth rotating rod 28a is connected with one side wall of the shell 1a through a bearing, one side of the fifth rotating rod 28a is fixedly connected with a seventh bevel gear, the seventh bevel gear is arranged at the bottom of the sixth bevel gear, and the sixth bevel gear is meshed with the seventh bevel gear.

Further, in the above ferromagnetic filter, a first connecting rod 12a is fixedly connected to the bottom of the first magnetic stripe 10a, a first bevel gear 13a is fixedly connected to the bottom of the first connecting rod 12a, a first frame 14a is disposed outside the first connecting rod 12a, the first connecting rod 12a is connected to the top of the first frame 14a through a bearing, a supporting rod 15a is disposed inside the first frame 14a, the supporting rod 15a is connected to one side of the first frame 14a through a bearing, a second bevel gear 16a is fixedly disposed on one side of the supporting rod 15a, the second bevel gear 16a is disposed at the bottom of the first bevel gear 13a, and the first bevel gear 13a is engaged with the second bevel gear 16 a.

The first frame body 14a is internally provided with a second connecting rod 17a, the second connecting rod 17a penetrates through the bottom of the first frame body 14a and is connected with the bottom of the first frame body 14a through a bearing, the top of the second connecting rod 17a is fixedly connected with a third bevel gear 18a, the third bevel gear 18a is arranged at the bottom of a second bevel gear 16a, the third bevel gear 18a is meshed with the second bevel gear 16a, the bottom of the second connecting rod 17a is fixedly connected with a second magnetic stripe 19a, and the outer portion of the second magnetic stripe 19a is fixedly connected with a plurality of second transverse magnetic stripes 20a.

Further, in above-mentioned strong magnetic filter, casing 1a inner chamber top is equipped with two second montants 33a, two second montant 33a all passes through the bearing with casing 1a inner chamber top and is connected, two second montant 33a outside is fixed second gear 34a respectively, rack 7a front side is located to second gear 34a, two second gear 34a all meshes with rack 7a mutually, two second montant 33a bottom is fixedly connected with third magnetic stripe 35a respectively, two third magnetic stripe 35a outside is fixed a plurality of third horizontal magnetic stripes respectively.

Furthermore, in the above ferromagnetic filter, a first sealing door is fixedly arranged on the front side of the casing 1a, the first sealing door is connected with the front side of the casing 1a through a hinge, a second sealing door is fixedly arranged on the front side of the filter frame 22a, and the second sealing door is connected with the front side of the filter frame 22a through a hinge.

Further, in the above ferromagnetic filter, the filter mechanism further includes a support member, the support member includes four support columns 29a, and the four support columns 29a are respectively fixed to four corners of the bottom of the housing 1a.

Further, the precision filter in the step S3 includes filter tank 1b, the position fixedly connected with that the filter tank 1b right side is close to the bottom is 19b with the outlet pipe of the inside intercommunication of filter tank 1b, the position fixedly connected with that the filter tank 1b rear side is close to the top is 20b with the inlet tube of the inside intercommunication of filter tank 1b, filter tank top fixedly connected with fixes box 22b, filter tank 1b one side fixedly connected with safety cover 2b, safety cover 2b one side fixedly connected with motor 3b.

The inside filtering mechanism that is equipped with of rose box 1b, filtering mechanism includes first pivot 4b, first pivot 4b inlays to be established at rose box 1b top, first pivot 4b top extends to the rose box 1b top outside, the fixed cover in first pivot 4b top is equipped with bull stick 5b, bull stick 5b outside cover is equipped with two first connecting rods 6b, two all be connected with second connecting rod 7b in the first connecting rod 6b outside, two activity grooves have been seted up at rose box 1b top, two inside second connecting rod 7b runs through two activity grooves respectively and extends to rose box 1b, two second connecting rod 7b bottom fixedly connected with filter box 8b, filter box 8b bottom is fixed to be inlayed and is equipped with filter screen 17b.

Inside first pivot 4b bottom extends to rose box 1b, first pivot 4b bottom fixedly connected with first bevel gear 9b, first bevel gear 9b bottom is equipped with second bevel gear 10b, and first bevel gear 9b is connected with second bevel gear 10b meshing, the inboard fixed cover of second bevel gear 10b is equipped with second pivot 11b, filter box 8b is all run through at second pivot 11b both ends, and second pivot 11b one end is connected at rose box 1b opposite side inner wall, and the safety cover 2b is run through to the second pivot 11b other end, second pivot 11b other end fixed connection is at the output of motor 3b.

The fixed cover in second pivot 11b outside is equipped with first belt pulley 12b, first belt pulley 12b is located inside safety cover 2b, the inside third pivot 13b that inlays of rose box 1b, the fixed cover in third pivot 13b outside is equipped with second belt pulley 15b, and first belt pulley 12b and the outside of second belt pulley 15b all are equipped with belt 21b, first belt pulley 12b passes through belt 21b drive connection with second belt pulley 15b, the fixed cover in third pivot 13b outside is equipped with two eccentric wheels 14b, two eccentric wheel 14b is located filter box 8b bottom.

The joints of the first rotating shaft 4b, the second rotating shaft 11b and the third rotating shaft 13b with the filter box 1b are movably connected through rolling bearings, and the joints of the first connecting rod 6b and the two second connecting rods 7b are movably connected through rolling bearings.

Further, in the precision filter, a fixing frame 16b is fixedly embedded in the filter box 1b, the fixing frame 16b is located at the bottom of the third rotating shaft 13b, and activated carbon is embedded in the fixing frame 16 b.

Further, in the precision filter, two sliding blocks 18b are fixedly connected to two sides of the filter box 8b, two sliding grooves are formed in the filter box 1b, and the two sliding blocks 18b are respectively embedded in the two sliding grooves.

The working principle of the electromagnetic device is as follows:

pouring the mixture obtained in the step S1 into the stirring box 2c from the feeding pipe 23c, driving the second rotating shaft 6c to rotate by the motor 4c, driving the first bevel gear 9c to rotate by the second rotating shaft 6c, driving the second bevel gear 10c to rotate by the first bevel gear 9c, driving the third rotating shaft 11c to rotate by the second bevel gear 10c, driving one of the sprockets 17c to rotate by the third rotating shaft 11c, driving the other sprocket 17c to rotate by the other sprocket 17c, driving the first rotating shaft 5c to rotate, driving the stirring rod 24c to rotate by the first rotating shaft 5c, setting the stirring rod 24c to be bent to increase the contact area with the mixture, driving the mixture to be fully stirred and mixed by the rotation of the stirring rod 24c, driving the first rotating shaft 6c to rotate the first gear 8c, driving the magnetizing box 3c to rotate around the stirring box 2c, driving the second gear 13c to rotate inside the second annular toothed plate 14c, driving the magnetizing box 13c to rotate, driving the second gear 13c to rotate, driving the magnetizing box 12c to rotate, driving the magnetic pole plate 12c to move up and down, and down and forth the magnetic bearing seat 22c, and up and down.

The working principle of the strong magnetic filter is as follows:

when the ferromagnetic filter is used, firstly, the motor 2a is switched on an external power supply, the first magnetic stripe 10a, the first transverse magnetic stripe 11a, the second magnetic stripe 19a and the second transverse magnetic stripe 20a are in an electromagnet form, namely, when the ferromagnetic filter is electrified, ferromagnetic materials can be adsorbed, and when the ferromagnetic filter is not electrified, the ferromagnetic materials are not adsorbed, meanwhile, the third rotating rod 31a and the fourth rotating rod 32a are connected through a one-way bearing, when the motor 2a rotates forwards, the third rotating rod 31a rotates, but the fourth rotating rod 32a does not rotate, and when the motor 2a rotates backwards, the third rotating rod 31a drives the fourth rotating rod 32a to rotate.

Pouring the mixed liquid treated in the step (S2) from the feeding port, wherein the feeding port is arranged at the rear side of the top of the first rotating rod 3a, therefore, after the mixed liquid is poured into the inclined plate 21a, the mixed liquid falls from the rear side of the first rotating rod 3a, first magnetic stripe 10a, first transverse magnetic stripe 11a, second magnetic stripe 19a and second transverse magnetic stripe 20a are electrified, the motor 2a works to rotate forward to drive the first rotating rod 3a to rotate, the first rotating rod 3a rotates to drive the first reciprocating screw rod 4a to rotate, the first reciprocating screw rod 4a drives the second rotating rod 30a to rotate, the second rotating rod 30a rotates to drive the fourth bevel gear to rotate, the fourth bevel gear rotates to drive the fifth bevel gear to rotate, the fifth bevel gear rotates to drive the third rotating rod 31a to rotate, at the moment, the fourth rotating rod 32a does not rotate, the first reciprocating screw rod 4a rotates to drive the first bearing seat 5a to move, the first bearing seat 5a moves to drive the fixing plate 6a to move, the fixing plate 6a moves to drive the rack 7a to move, the rack 7a moves to drive the first gear 9a to rotate, the first gear 9a drives the first vertical rod 8a to rotate, the first vertical rod 8a rotates to drive the first magnetic stripe 10a to rotate, the first connecting rod 10a rotates to drive the second magnetic stripe 11a to rotate, the second bevel gear 18a to rotate, the connecting rod 16a rotates to drive the second magnetic stripe 19a, the third magnetic stripe 18a rotates to rotate, the first magnetic stripe 18a rotates to drive the second magnetic stripe 16a to rotate, meanwhile, the rack 7a further drives the second gear 34a to rotate, the second gear 34a drives the second vertical bar 33a to rotate, the second vertical bar 33a rotates to drive the third magnetic stripe 35a to rotate, and the third magnetic stripe 35a drives the third transverse magnetic stripe to rotate.

After the adsorption of the ferromagnetic elements is completed, the motor 2a rotates reversely, at this time, the third rotating rod 31a drives the fourth rotating rod 32a to rotate, the fourth rotating rod 32a drives the sixth bevel gear to rotate, the sixth bevel gear drives the seventh bevel gear to rotate, the seventh bevel gear rotates to drive the fifth rotating rod 28a to rotate, the fifth rotating rod 28a drives the second reciprocating screw rod 25a to rotate, the second reciprocating screw rod 25a rotates to drive the second bearing seat 26a to move, the second bearing seat 26a moves to drive the first L-shaped plate 27a to move, the first L-shaped plate 27a moves to drive the baffle 24a to move, when the baffle 24a moves to not shield the top of the filter frame 22a, the mixed liquid falls down, substances except ferromagnetic substances in the mixed liquid in the falling process are filtered on the filter screen, then, the first transverse magnetic stripe 11a, the second transverse magnetic stripe 19a and the second transverse magnetic stripe 20a are powered off, the adsorbed magnets fall onto the filter screen, and finally, after the filtered mixed liquid passes through the discharge port, the first magnetic stripe 11a and the second sealing door are opened, and the whole filter frame 22a cleaning step is completed.

The working principle of the precision filter is as follows:

the motor 3b works to drive the second rotating shaft 11b to rotate, the second rotating shaft 11b rotates to drive the first belt pulley 12b to rotate, the first belt pulley 12b rotates to drive the second belt pulley 15b to rotate, the second belt pulley 15b rotates to drive the third rotating shaft 13b to rotate, the third rotating shaft 13b rotates to drive the two eccentric wheels 14b to rotate, so that the filter screen 17b is flapped, the second rotating shaft 11b rotates to drive the second bevel gear 10b to rotate, the second bevel gear 10b rotates to drive the first bevel gear 9b to rotate, the first bevel gear 9b rotates to drive the first rotating shaft 4b to rotate, the first rotating shaft 4b rotates to drive the rotating rod 5b to rotate, the rotating rod 5b rotates to drive the first connecting rod 6b and the second connecting rod 7b to move left and right, the second connecting rod 7b moves to drive the filter box 8b to move left and right, so that the filter screen 17b is screened, the filter screen 17b is prevented from being blocked, the filtering effect is improved, and the filtering time is saved.

The working principle of the preparation process of the lubricating oil improver defined by the invention is as follows:

the method comprises the steps of firstly adding a modified graphene additive and base oil into a reaction kettle, carrying out primary stirring to obtain a mixture, wherein the modified graphene additive has the characteristic of no agglomeration and precipitation in the base oil, and the graphene is uniformly dispersed in the base oil after the primary stirring, which is a common method for preparing a lubricating oil modifier taking the modified graphene additive as a main body at present but is limited by the stirring capacity of the reaction kettle.

Then the mixture is subjected to electromagnetic treatment, so that ferromagnetic metal impurities in the mixture are magnetized, and then the mixture is subjected to strong magnetic filtration through a strong magnetic filter, wherein the ferromagnetic impurities in the mixture are adsorbed by the strong magnetic filter through a plurality of magnetic strips, so that the magnetized metal impurities in the passing mixture are removed to the greatest extent, and the metal impurities are prevented from being mixed into finished lubricating oil along with a lubricating oil improver.

Then carry out the secondary filter through precision filter to the mixture, the incessant removal is controlled to the filter screen among the precision filter, and the eccentric wheel incessantly patts the filter screen simultaneously for comparatively thick mixture can be comparatively rapid through the filter screen, accomplish the filtration to insoluble solid particle impurity, avoid these insoluble solid particle impurity to sneak into in the finished product lubricating oil along with the lubricating oil improver.

And finally, completely stirring the mixture through a homogenizing emulsifying pump, and subjecting graphene in the mixture to the comprehensive actions of strong shearing, centrifugal extrusion, liquid layer friction, impact tearing and turbulent flow in a narrow gap between a stator and a rotor of the homogenizing emulsifying pump to thoroughly and uniformly disperse the modified graphene additive in the base oil to obtain the emulsion formed by mixing the graphene and the base oil.

In order to further improve the dispersion effect of the modified graphene additive in the base oil and the filtering effect of impurities in the mixture, the steps are circulated for multiple times, and finally the lubricating oil improver taking graphene as the main body is obtained.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A preparation process of a lubricating oil improver is characterized by comprising the following steps: comprises the following steps;

s1: adding a modified graphene additive and base oil into a reaction kettle, and carrying out primary stirring to obtain a mixture, wherein the mass ratio of graphene in the modified graphene additive to the base oil is 0.001% -0.1%;

s2: performing electromagnetic treatment on the mixture obtained in the step S1 to magnetize ferromagnetic metal impurities in the mixture, wherein the magnetic induction intensity of the electromagnetic treatment is 10-100 Gs, and the time of the electromagnetic treatment is 0.2-0.5 hour;

s3: performing strong magnetic filtration on the mixture after the S2 treatment by using a strong magnetic filter to remove magnetized metal impurities in the mixture, wherein the magnetic induction intensity of the strong magnetic filtration is 200-350 Gs, and the time of the strong magnetic filtration is 0.3-0.5 hour;

s4: performing precise filtration on the mixture treated by the S3 through a precise filter to remove insoluble solid particle impurities in the mixture, wherein the filtration precision of the precise filter is 10-15 um;

s5: the mixture treated by the S4 is thoroughly stirred by a homogenizing emulsifying pump, and the graphene in the mixture is subjected to the comprehensive actions of strong shearing, centrifugal extrusion, liquid layer friction, impact tearing and turbulent flow in a narrow gap between a stator and a rotor of the homogenizing emulsifying pump to obtain emulsion formed by mixing the graphene and base oil;

s6: circulating S1-S5 for 5-10 times to obtain the lubricating oil improver taking graphene as a main body;

before the step S3, the mixture is heated to 40-60 ℃;

the strong magnetizer in the step S3 comprises a shell (1 a), the top of the shell (1 a) is fixedly connected with a feeding port, the bottom of the shell (1 a) is fixedly connected with a discharging port, an electromagnetic valve is arranged outside the discharging port, a filtering mechanism is fixedly arranged inside the shell (1 a), and the filtering mechanism extends out of the shell (1 a);

the filtering mechanism comprises a motor (2 a), the motor (2 a) is fixedly arranged on one side of the shell (1 a), the motor (2 a) is fixedly connected with a first rotating rod (3 a) through an output shaft, the first rotating rod (3 a) penetrates through one side wall of the shell (1 a) and extends into the shell (1 a), and the first rotating rod (3 a) is connected with one side wall of the shell (1 a) through a bearing;

a first reciprocating screw rod (4 a) is fixedly connected to one side of the first rotating rod (3 a), a first bearing seat (5 a) is sleeved outside the first reciprocating screw rod (4 a), the first bearing seat (5 a) is connected with the first reciprocating screw rod (4 a) through a ball nut pair, a limiting plate (36 a) is fixedly arranged at the top of an inner cavity of the shell (1 a), a limiting groove is formed in the bottom of the limiting plate (36 a), a first vertical plate is fixedly arranged at the top of the first bearing seat (5 a), a limiting block is fixedly arranged at the top of the first vertical plate and is arranged inside the limiting groove, a fixing plate (6 a) is fixedly connected to the front side of the first bearing seat (5 a), and a rack (7 a) is fixedly connected to the front side of the fixing plate (6 a);

a first vertical rod (8 a) is arranged at the top of an inner cavity of the shell (1 a), the first vertical rod (8 a) is connected with the top of the inner cavity of the shell (1 a) through a bearing, a first gear (9 a) is fixedly arranged outside the first vertical rod (8 a), the first gear (9 a) is arranged on the front side of the rack (7 a), the first gear (9 a) is meshed with the rack (7 a), a first magnetic stripe (10 a) is fixedly connected to the bottom of the first rotating rod (3 a), and a plurality of first transverse magnetic stripes (11 a) are fixedly arranged outside the first magnetic stripe (10 a);

the improved filter is characterized in that two inclined plates (21 a) are fixedly arranged in the shell (1 a), the bottoms of the two inclined plates (21 a) are fixedly connected with a filter frame (22 a), the bottom of the filter frame (22 a) is fixedly connected with a filter screen (23 a), a baffle (24 a) is arranged in the filter frame (22 a), and the baffle (24 a) penetrates through one side of the filter frame (22 a) and extends out of the filter frame (22 a);

an L-shaped support plate (37 a) is fixedly connected to one side wall of an inner cavity of the shell (1 a), a sliding groove is formed in the L-shaped support plate (37 a), a second reciprocating screw rod (25 a) is arranged inside the shell (1 a), one side of the second reciprocating screw rod (25 a) is connected with the L-shaped support plate (37 a) through a bearing, a second bearing seat (26 a) is sleeved outside the second reciprocating screw rod (25 a), the second bearing seat (26 a) is connected with the second reciprocating screw rod (25 a) through a ball nut pair, a second vertical plate is fixedly arranged at the bottom of the second bearing seat (26 a), a sliding block is fixedly connected to the bottom of the second vertical plate and arranged inside the sliding groove, a first L-shaped plate (27 a) is fixedly arranged at the top of the second bearing seat (26 a), and one side of the first L-shaped plate (27 a) is fixedly connected with one side of the baffle plate (24 a);

a second rotating rod (30 a) is fixedly connected to one side of the first reciprocating screw rod (4 a), the second rotating rod (30 a) penetrates through one side wall of the shell (1 a) and extends out of the shell (1 a), the second rotating rod (30 a) is connected with one side wall of the shell (1 a) through a bearing, a second frame body is fixedly arranged outside the second rotating rod (30 a), the second rotating rod (30 a) is connected with the second frame body through a bearing, a fourth bevel gear is fixedly arranged outside the second rotating rod (30 a), a third rotating rod (31 a) is further arranged inside the second frame body, the third rotating rod (31 a) penetrates through the bottom of the second frame body and extends out of the second frame body, the third rotating rod (31 a) is connected with the bottom of the second frame body through a bearing, a fifth bevel gear is fixedly arranged at the top of the third rotating rod (31 a), the fifth bevel gear is arranged at the bottom of the fourth bevel gear, and the fifth bevel gear is meshed with the fourth bevel gear;

a fourth rotating rod (32 a) is arranged at the bottom of the third rotating rod (31 a), the third rotating rod (31 a) is connected with the fourth rotating rod (32 a) through a one-way bearing, a third frame body is fixedly arranged outside the fourth rotating rod (32 a), the fourth rotating rod (32 a) is connected with the third frame body through a bearing, and a sixth bevel gear is fixedly arranged at the bottom of the fourth rotating rod (32 a);

and a fifth rotating rod (28 a) is fixedly connected to one side of the second reciprocating screw rod (25 a), the fifth rotating rod (28 a) penetrates through one side wall of the shell (1 a) and extends out of the shell (1 a), the fifth rotating rod (28 a) is connected with one side wall of the shell (1 a) through a bearing, a seventh bevel gear is fixedly connected to one side of the fifth rotating rod (28 a), the seventh bevel gear is arranged at the bottom of the sixth bevel gear, and the sixth bevel gear is meshed with the seventh bevel gear.

2. The process for producing a lubricating oil improver according to claim 1, wherein: the bottom of the first magnetic strip (10 a) is fixedly connected with a first connecting rod (12 a), the bottom of the first connecting rod (12 a) is fixedly connected with a first bevel gear (13 a), a first frame body (14 a) is arranged outside the first connecting rod (12 a), the first connecting rod (12 a) is connected with the top of the first frame body (14 a) through a bearing, a supporting rod (15 a) is arranged inside the first frame body (14 a), the supporting rod (15 a) is connected with one side of the first frame body (14 a) through a bearing, a second bevel gear (16 a) is fixedly arranged on one side of the supporting rod (15 a), the second bevel gear (16 a) is arranged at the bottom of the first bevel gear (13 a), and the first bevel gear (13 a) is meshed with the second bevel gear (16 a);

the first frame body (14 a) is internally provided with a second connecting rod (17 a), the second connecting rod (17 a) penetrates through the bottom of the first frame body (14 a) and is connected with the bottom of the first frame body (14 a) through a bearing, a third bevel gear (18 a) is fixedly connected to the top of the second connecting rod (17 a), the third bevel gear (18 a) is arranged at the bottom of the second bevel gear (16 a), the third bevel gear (18 a) is meshed with the second bevel gear (16 a), a second magnetic strip (19 a) is fixedly connected to the bottom of the second connecting rod (17 a), and a plurality of second transverse magnetic strips (20 a) are fixedly connected to the outside of the second magnetic strip (19 a).

3. The process for producing a lubricating oil improver according to claim 1, wherein: casing (1 a) inner chamber top is equipped with two second montants (33 a), two second montant (33 a) all passes through the bearing with casing (1 a) inner chamber top and is connected, two second montant (33 a) outside is fixed second gear (34 a) of being equipped with respectively, rack (7 a) front side is located in second gear (34 a), two second gear (34 a) all meshes with rack (7 a) mutually, two second montant (33 a) bottom is fixedly connected with third magnetic stripe (35 a), two respectively third magnetic stripe (35 a) outside is fixed a plurality of third horizontal magnetic stripes of being equipped with respectively.

4. The process for producing a lubricating oil improver according to claim 1, wherein: the improved filter is characterized in that a first sealing door is fixedly arranged on the front side of the shell (1 a), the first sealing door is connected with the front side of the shell (1 a) through a hinge, a second sealing door is fixedly arranged on the front side of the filter frame (22 a), and the second sealing door is connected with the front side of the filter frame (22 a) through a hinge.

5. The process for producing a lubricating oil improver according to claim 1, wherein: the filtering mechanism further comprises a supporting part, the supporting part comprises four supporting columns (29 a), and the four supporting columns (29 a) are respectively fixedly arranged at four corners of the bottom of the shell (1 a).

6. The process for producing a lubricating oil improver according to claim 1, wherein: the precision filter in the step S3 comprises a filter box (1 b), a water outlet pipe (19 b) communicated with the interior of the filter box (1 b) is fixedly connected to the position, close to the bottom, of the right side of the filter box (1 b), a water inlet pipe (20 b) communicated with the interior of the filter box (1 b) is fixedly connected to the position, close to the top, of the rear side of the filter box (1 b), a fixing box (22 b) is fixedly connected to the top of the filter box, a protection cover (2 b) is fixedly connected to one side of the filter box (1 b), and a motor (3 b) is fixedly connected to one side of the protection cover (2 b);

the filter box is characterized in that a filtering mechanism is arranged in the filter box (1 b), the filtering mechanism comprises a first rotating shaft (4 b), the first rotating shaft (4 b) is embedded at the top of the filter box (1 b), the top of the first rotating shaft (4 b) extends to the outer side of the top of the filter box (1 b), a rotating rod (5 b) is fixedly sleeved at the top of the first rotating shaft (4 b), two first connecting rods (6 b) are sleeved on the outer side of the rotating rod (5 b), the outer sides of the two first connecting rods (6 b) are respectively connected with a second connecting rod (7 b), two movable grooves are formed in the top of the filter box (1 b), the two second connecting rods (7 b) respectively penetrate through the two movable grooves and extend into the filter box (1 b), a filter box (8 b) is fixedly connected to the bottoms of the two second connecting rods (7 b), and a filter screen (17 b) is fixedly embedded at the bottom of the filter box (8 b);

the bottom of the first rotating shaft (4 b) extends into the filtering box (1 b), a first bevel gear (9 b) is fixedly connected to the bottom of the first rotating shaft (4 b), a second bevel gear (10 b) is arranged at the bottom of the first bevel gear (9 b), the first bevel gear (9 b) is meshed with the second bevel gear (10 b), a second rotating shaft (11 b) is fixedly sleeved on the inner side of the second bevel gear (10 b), two ends of the second rotating shaft (11 b) penetrate through the filtering box (8 b), one end of the second rotating shaft (11 b) is connected to the inner wall of the other side of the filtering box (1 b), the other end of the second rotating shaft (11 b) penetrates through the protecting cover (2 b), and the other end of the second rotating shaft (11 b) is fixedly connected to the output end of the motor (3 b);

the outer side of the second rotating shaft (11 b) is fixedly sleeved with a first belt pulley (12 b), the first belt pulley (12 b) is located inside the protective cover (2 b), a third rotating shaft (13 b) is embedded inside the filter box (1 b), the outer side of the third rotating shaft (13 b) is fixedly sleeved with a second belt pulley (15 b), belts (21 b) are sleeved on the outer sides of the first belt pulley (12 b) and the second belt pulley (15 b), the first belt pulley (12 b) and the second belt pulley (15 b) are in driving connection through the belts (21 b), two eccentric wheels (14 b) are fixedly sleeved on the outer side of the third rotating shaft (13 b), and the two eccentric wheels (14 b) are located at the bottom of the filter box (8 b);

the junction of first pivot (4 b), second pivot (11 b) and third pivot (13 b) and rose box (1 b) all passes through antifriction bearing swing joint, first connecting rod (6 b) all passes through antifriction bearing swing joint with the junction of two second connecting rods (7 b).

7. The process for producing a lubricating oil improver according to claim 6, wherein: the filter box is characterized in that a fixing frame (16 b) is fixedly embedded in the filter box (1 b), the fixing frame (16 b) is located at the bottom of the third rotating shaft (13 b), and activated carbon is embedded in the fixing frame (16 b).

8. The process for producing a lubricating oil improver according to claim 7, wherein: the equal fixedly connected with slider (18 b) in filter box (8 b) both sides, two spouts have been seted up to rose box (1 b) inside, two slider (18 b) inlay respectively and establish inside two spouts.