CN102191346A - Combined type tuyere small sleeve - Google Patents
Combined type tuyere small sleeve Download PDFInfo
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- CN102191346A CN102191346A CN2011101475803A CN201110147580A CN102191346A CN 102191346 A CN102191346 A CN 102191346A CN 2011101475803 A CN2011101475803 A CN 2011101475803A CN 201110147580 A CN201110147580 A CN 201110147580A CN 102191346 A CN102191346 A CN 102191346A
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- sleeve pipe
- tuyere small
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Abstract
The invention discloses a combined type tuyere small sleeve which comprises a central sleeve, an internal sleeve, a first sleeve, a second sleeve and a third sleeve, wherein the central sleeve is fixedly socketed with the internal sleeve to form an oxy-coal medium channel; the gap between the first sleeve and the central sleeve forms a cooling water inflow channel, the gap between the second sleeve and the first sleeve forms a gas medium channel, the gap between the third sleeve and the second sleeve forms a cooling water backflow channel, a front cap and a rear cap which are in an integrated structure are fixedly connected with one ends far away from a water inflow port and a water backflow port of the cooling water inflow channel and the cooling water backflow channel, and the cooling water inflow channel and the cooling water backflow channel are communicated through the front cap and the rear cap, thus forming a cooling water circulating channel; and the front cap is provided with an oxy-coal medium outlet and a gas medium outlet. The invention has the advantages of simple structure, good cooling effect, high reliability and safety, and long service life.
Description
Technical field
The present invention relates to a kind of pure oxygen blast furnace or melting and reducing furnace apparatus, relate in particular to a kind of built-up type tuyere small sleeve that is used for the pure oxygen iron-smelting furnace.
Background technology
As everyone knows, in the ironmaking field, in traditional iron-smelting blast furnace or the non-blast furnace, tuyere small sleeve all is must obligato vitals, and the quality of tuyere small sleeve quality and performance directly has influence on normal operation and working efficiency in the smelting process.Under actual condition, the tuyere small sleeve working conditions is abominable, and thermal etching is serious, causes the tuyere small sleeve scaling loss serious, and work-ing life is short.And, for traditional tuyere small sleeve, great limitation is arranged also on blowing media.
Because the shortcoming that above-mentioned prior art exists, the inventor is based on being engaged in relevant design and on-site experience and expertise, actively improved and innovates, in the hope of realizing a kind of built-up type tuyere small sleeve.This tuyere small sleeve is simple in structure, good cooling results, reliable and secure, work-ing life is secure.And not only can coal injection and pure oxygen by this tuyere small sleeve, other gaseous media of high pressure, the high wind-warm syndrome of can also in stove, jetting simultaneously, multiple gases such as coal gas, pressurized air or steam for example can improve the air-supply function of tuyere small sleeve.
Summary of the invention
The purpose of this invention is to provide a kind of simple in structure, good cooling results, reliable and secure, built-up type tuyere small sleeve that work-ing life is long, not only can coal injection and pure oxygen by this tuyere small sleeve, other gaseous media of high pressure, the high wind-warm syndrome of can also in stove, jetting simultaneously, to improve the air-supply function of tuyere small sleeve, reduce theoretical combustion temperature before the air port, reduce the probability that tuyere small sleeve burns out, the work-ing life of further improving tuyere small sleeve.
For achieving the above object, the present invention proposes a kind of built-up type tuyere small sleeve, comprising:
Center sleeve, described center sleeve one end is provided with the import of oxygen coal medium, and its other end permanent sleeve is connected to interior cover, and described center sleeve and described interior cover intracavity inter-connection form oxygen coal medium channel;
First sleeve pipe is set in the outside of described center sleeve, and the gap between described first sleeve pipe and the described center sleeve forms the water coolant water entry, offers water-in at described first sleeve pipe near a side of described oxygen coal medium import;
Second sleeve pipe, be the L type, be set in described first outside of sleeve, gap between described second sleeve pipe and described first sleeve pipe forms the gaseous media passage this second sleeve portion, offers the gaseous media import at described first sleeve pipe near a side of described oxygen coal medium import;
The 3rd sleeve pipe is set in described second outside of sleeve, and gap between described the 3rd sleeve pipe and described second sleeve pipe forms the water coolant backwater channel, offers water return outlet at described the 3rd sleeve pipe near a side of described oxygen coal medium import;
Be fixedly connected with the preceding cap and the back cap of integrative-structure away from an end of described water-in and described water return outlet at described water coolant water entry and described water coolant backwater channel, described water coolant water entry is connected by cap before described and back cap with described water coolant backwater channel, forms cooling water circulation passage;
Before described, offer the oxygen coal media outlet that is connected with described oxygen coal medium channel on the cap; And before described, also offer the gaseous media outlet that is connected with described gaseous media passage on the cap.
Aforesaid built-up type tuyere small sleeve, wherein, a side of cap is provided with guiding device before described cooling water circulation passage is close described, described guiding device comprises a plurality of flow deflectors, described flow deflector interlocks and the compartment of terrain is laid on the interior two side of described cooling water circulation passage, one end of each described flow deflector is welded on the sidewall of described cooling water circulation passage, and another sidewall of the other end of described flow deflector and described cooling water circulation passage has the distance of regulation.
Aforesaid built-up type tuyere small sleeve, wherein, a side of cap is provided with described guiding device before described water coolant water entry is close described.
Aforesaid built-up type tuyere small sleeve, wherein, a side of cap is provided with described guiding device before described water coolant backwater channel is close described.
Aforesaid built-up type tuyere small sleeve, wherein, described guiding device includes 3～6 flow deflectors.
Aforesaid built-up type tuyere small sleeve, wherein, described flow deflector is the stainless steel diversion plate.
Aforesaid built-up type tuyere small sleeve, wherein, described oxygen coal media outlet is opened in the center of described preceding cap, and the cap upper edge circumferentially offers a plurality of described gaseous medias outlets that are circular hole before described.
Aforesaid built-up type tuyere small sleeve, wherein, described preceding cap is for adopting the preceding cap of pure copper extruding casting moulding, and described back cap is the back cap of employing boiler steel casting.
Aforesaid built-up type tuyere small sleeve, wherein, described center sleeve, interior cover, first sleeve pipe, second sleeve pipe and the 3rd sleeve pipe are the stainless steel sleeve pipe.
Compared with prior art, the present invention has following characteristics and advantage:
1, the present invention has independently oxygen coal medium channel and gaseous media passage, in pure oxygen non-blast furnace ironmaking process, when in stove, jetting oxygen coal medium by air port equipment, the gaseous media of high pressure, the high wind-warm syndrome of can jetting simultaneously, improved efficiency of combustion, can reduce theoretical combustion temperature before the air port, reduce the probability that tuyere small sleeve burns out, improve the work-ing life of tuyere small sleeve.
2, the present invention is by the gaseous media of winding-up high pressure, high wind-warm syndrome in stove, and the coke ratio in the time of can lowering industrial the smelting reduces production costs.
3, tuyere small sleeve of the present invention is when the gaseous media of coal dust, oxygen and high pressure, high wind-warm syndrome is jetted simultaneously, can provide powerful guarantee for smelting operation continuously at safety, reliability service under the suitable mal-condition, has use value preferably.
4, the present invention is provided with guiding device at the front end place of the close tuyere small sleeve of cooling water circulation passage, makes water coolant produce eddy flow when flowing through this place, avoids occurring the flow of cooling water dead band in the tuyere small sleeve, plays the effect that improves the tuyere small sleeve cooling performance.
Description of drawings
The following drawings only is intended to the present invention done and schematically illustrates and explain, not delimit the scope of the invention.Wherein,
Fig. 1 is the structural representation of built-up type tuyere small sleeve of the present invention;
Fig. 2 is that the A-A of Fig. 1 is to cross-sectional view;
Fig. 3 is the structural representation of guiding device of the present invention.
Description of reference numerals:
The 1-center sleeve; 2-first sleeve pipe; 3-second sleeve pipe; 4-the 3rd sleeve pipe; Cover in the 5-; Cap before the 6-; Cap behind the 7-;
11-oxygen coal medium channel; The import of 12-oxygen coal medium; 13-oxygen coal media outlet; 21-water coolant water entry; The 22-water-in; 31-gaseous media passage; The import of 32-gaseous media; The outlet of 33-gaseous media; 41-water coolant backwater channel; The 42-water return outlet; The cooling water circulation passage of 8-; The 9-guiding device; The 91-flow deflector; 10-eddy flow passage.
Embodiment
Understand for technical characterictic of the present invention, purpose and effect being had more clearly, now contrast description of drawings the specific embodiment of the present invention.
Please refer to Fig. 1, be the structural representation of built-up type tuyere small sleeve of the present invention.As shown in the figure, the built-up type tuyere small sleeve that the present invention proposes comprises center sleeve 1, first sleeve pipe 2, second sleeve pipe 3, the 3rd sleeve pipe 4, interior cover 5, preceding cap 6 and back cap 7, described center sleeve 1 one ends (rear end) are provided with oxygen coal medium import 12, be used to insert oxygen coal spray gun (not shown), by the spray gun pulverized coal conveying, cover 5 in the other end of described center sleeve 1 (front end) permanent sleeve is connected to, described center sleeve 1 and described interior cover 5 intracavity inter-connections form oxygen coal medium channel 11.In the present invention, the exit end of oxygen coal medium is made as the tuyere small sleeve front end, and its entrance end is made as the tuyere small sleeve rear end.Described oxygen coal medium channel 11 extends to the exit of tuyere small sleeve front end, carries pure oxygen in spray gun and interior cover 5 formation circular channels.Described first sleeve pipe 2 is set in the outside of described center sleeve 1, gap between described first sleeve pipe 2 and the described center sleeve 1 forms water coolant water entry 21, side in the 2 close described oxygen coal medium imports 11 of described first sleeve pipe offers water-in 22, water coolant is injected in the water coolant water entry 21 by water-in 22, and flows to the front end of tuyere small sleeve.Described second sleeve pipe 3 is the L type, this second sleeve pipe 3 partly is set in described first sleeve pipe 2 outsides, gap between described second sleeve pipe 3 and described first sleeve pipe 2 forms gaseous media passage 31, side in the 2 close described oxygen coal medium imports 12 of described first sleeve pipe offers gaseous media import 32, like this, gaseous media (for example multiple gases such as coal gas, pressurized air or steam) can enter in the gaseous media passage 31 by gaseous media import 32, and flows to the exit of the front end of tuyere small sleeve.Described the 3rd sleeve pipe 4 is set in described second sleeve pipe 3 outsides, gap between described the 3rd sleeve pipe 4 and described second sleeve pipe 3 forms water coolant backwater channel 41, side in the 4 close described oxygen coal medium imports 32 of described the 3rd sleeve pipe offers water return outlet 42, water coolant can be discharged by water return outlet 42 through water coolant backwater channel 41 by behind the tuyere small sleeve front end again.Be fixedly connected with the preceding cap 6 and the back cap 7 of integrative-structure away from an end of described water-in 22 and described water return outlet 42 at described water coolant water entry 21 and described water coolant backwater channel 41, described water coolant water entry 21 is connected by cap before described 6 and back cap 7 with described water coolant backwater channel 41, form closed cooling water circulation passage 8, can flow through successively water-in 22, water coolant water entry 21, preceding cap 6, back cap 7, water coolant backwater channel 41, water return outlet 42 of water coolant like this, thus realize the refrigerating function of water coolant.Before described, offer the oxygen coal media outlet 13 that is connected with described oxygen coal medium channel 11 on the cap 6, make that oxygen coal medium can be by 13 ejections of oxygen coal media outlet; And before described, also offer the gaseous media outlet 33 that is connected with described gaseous media passage 31 on the cap 6.From the above, the present invention has independently oxygen coal medium channel and gaseous media passage, in pure oxygen non-blast furnace ironmaking process, when in stove, jetting oxygen coal medium by air port equipment, the gaseous media of high pressure, the high wind-warm syndrome of can jetting has simultaneously improved efficiency of combustion, can reduce theoretical combustion temperature before the air port, reduce the probability that tuyere small sleeve burns out, improve the work-ing life of tuyere small sleeve.And the coke ratio in the time of can lowering the industry smelting reduces production costs.Simultaneously, tuyere small sleeve of the present invention can be at safety, reliability service under the suitable mal-condition, thereby provides powerful guarantee for smelting operation continuously, has use value preferably.
Further, be provided with guiding device 9 at described cooling water circulation passage 8 near a side of cap 6 before described.Please in the lump with reference to figure 3, structural representation for guiding device of the present invention, described guiding device 9 comprises a plurality of flow deflectors 91, staggered and the compartment of terrain of described flow deflector 91 is laid on the two side in the described cooling water circulation passage 8, more particularly, one end of each described flow deflector 91 is welded on the sidewall of described cooling water circulation passage 8, another sidewall of the other end of this flow deflector 91 and described cooling water circulation passage 8 has the distance of regulation, like this, form an eddy flow path 10 at cooling water circulation passage 8 places near the front end of tuyere small sleeve, when cooling-water flowing during through this eddy flow path 10, water coolant is rotation direction and flows under the effect of flow deflector 91, thereby avoided occurring the flow of cooling water dead band in the tuyere small sleeve, improved the cooling performance of tuyere small sleeve.In this enforcement, guiding device 9 is arranged on a side of described water coolant water entry 21 and described water coolant backwater channel 41 close described preceding caps, but also be not limited thereto, guiding device 9 also can be arranged on a side of described water coolant water entry 21 or described water coolant backwater channel 41 close described preceding caps 6 separately, as long as can avoid occurring the flow of cooling water dead band in the tuyere small sleeve, the cooling performance that improves tuyere small sleeve gets final product.
Further, described guiding device 9 includes 3～6 flow deflectors 91, thereby has guaranteed that cooling-water flowing produces eddy flow when guiding device 9.
Further, described flow deflector 91 is the stainless steel diversion plate, thereby has guaranteed the intensity and the corrosion resistance of flow deflector.
Further, as shown in Figure 2, described oxygen coal media outlet 13 is opened in the center of described preceding cap 6, and cap 6 upper edges circumferentially offer a plurality of described gaseous medias outlets 33 that are circular hole before described.Like this, when oxygen coal medium sprays into iron-smelting furnace by oxygen coal media outlet 13, the gaseous media of high pressure, high wind-warm syndrome can spray into iron-smelting furnace at a high speed by a plurality of gaseous media outlets 33, plays the effect of regulating the working of a furnace in smelting process, saving coke, enhance productivity.
Further, described preceding cap 6 is the moulding of employing pure copper extruding casting, and described back cap 7 is employing boiler steel casting.Cap 6 and described back cap 7 structure that is welded as a whole before described has so just reduced the usage quantity of copper material, has reduced manufacturing cost.
Further, described center sleeve 1, interior cover 5, first sleeve pipe 2, second sleeve pipe 3 and the 3rd sleeve pipe 4 all adopt the stainless steel sleeve pipe, thereby have further reduced the usage quantity of copper material, have reduced manufacturing cost.
In use, tuyere small sleeve of the present invention is after oxygen coal gun is installed in oxygen coal medium import 12, and interior cover 5 is used to the oxygen of jetting with the formed circumferential weld of oxygen coal gun, and the coal dust of oxygen and winding-up all enters iron-smelting furnace from 13 winding-ups of oxygen coal media outlet; The water coolant that enters tuyere small sleeve from water-in 22 flows water coolant water entry 21, water coolant is by the flow deflector 91 of guiding device 9, pass through again by water coolant backwater channel 41, finally from water return outlet, 42 flow out, thereby realize tuyere small sleeve is carried out cooling purpose by the quick fluid interchange process of water coolant; Simultaneously, the gaseous media of high pressure, high wind-warm syndrome enters tuyere small sleeve from gaseous media import 32, in gaseous media passage 31, flow, gaseous media is sprayed at a high speed by the outlet of the gaseous media on the preceding cap 6 33 and enters in the stove, fully mix, play the effect of in smelting process, regulating the working of a furnace, saving coke, enhance productivity with oxygen coal medium.Whole wind mouth structure of the present invention is reasonable, good cooling results, and it is powerful to blow.
The above only is the schematic embodiment of the present invention, is not in order to limit scope of the present invention.Any those skilled in the art, equivalent variations of having done under the prerequisite that does not break away from design of the present invention and principle and modification all should belong to the scope of protection of the invention.
Claims (9)
1. a built-up type tuyere small sleeve is characterized in that, described built-up type tuyere small sleeve comprises:
Center sleeve, described center sleeve one end is provided with the import of oxygen coal medium, and its other end permanent sleeve is connected to interior cover, and described center sleeve and described interior cover intracavity inter-connection form oxygen coal medium channel;
First sleeve pipe is set in the outside of described center sleeve, and the gap between described first sleeve pipe and the described center sleeve forms the water coolant water entry, offers water-in at described first sleeve pipe near a side of described oxygen coal medium import;
Second sleeve pipe, be the L type, be set in described first outside of sleeve, gap between described second sleeve pipe and described first sleeve pipe forms the gaseous media passage this second sleeve portion, offers the gaseous media import at described first sleeve pipe near a side of described oxygen coal medium import;
The 3rd sleeve pipe is set in described second outside of sleeve, and gap between described the 3rd sleeve pipe and described second sleeve pipe forms the water coolant backwater channel, offers water return outlet at described the 3rd sleeve pipe near a side of described oxygen coal medium import;
Be fixedly connected with the preceding cap and the back cap of integrative-structure away from an end of described water-in and described water return outlet at described water coolant water entry and described water coolant backwater channel, described water coolant water entry is connected by cap before described and back cap with described water coolant backwater channel, forms cooling water circulation passage;
Before described, offer the oxygen coal media outlet that is connected with described oxygen coal medium channel on the cap; And before described, also offer the gaseous media outlet that is connected with described gaseous media passage on the cap.
2. built-up type tuyere small sleeve as claimed in claim 1, it is characterized in that, a side of cap is provided with guiding device before described cooling water circulation passage is close described, described guiding device comprises a plurality of flow deflectors, described flow deflector interlocks and the compartment of terrain is laid on the interior two side of described cooling water circulation passage, one end of each described flow deflector is welded on the sidewall of described cooling water circulation passage, and another sidewall of the other end of described flow deflector and described cooling water circulation passage has the distance of regulation.
3. built-up type tuyere small sleeve as claimed in claim 2 is characterized in that, a side of cap is provided with described guiding device before described water coolant water entry is close described.
4. as claim 2 or 3 described built-up type tuyere small sleeves, it is characterized in that a side of cap is provided with described guiding device before described water coolant backwater channel is close described.
5. built-up type tuyere small sleeve as claimed in claim 2 is characterized in that, described guiding device includes 3～6 flow deflectors.
6. built-up type tuyere small sleeve as claimed in claim 2 is characterized in that, described flow deflector is the stainless steel diversion plate.
7. built-up type tuyere small sleeve as claimed in claim 1 is characterized in that, described oxygen coal media outlet is opened in the center of described preceding cap, and the cap upper edge circumferentially offers a plurality of described gaseous medias outlets that are circular hole before described.
8. built-up type tuyere small sleeve as claimed in claim 1 is characterized in that, described preceding cap is for adopting the preceding cap of pure copper extruding casting moulding, and described back cap is the back cap of employing boiler steel casting.
9. built-up type tuyere small sleeve as claimed in claim 1 is characterized in that, described center sleeve, interior cover, first sleeve pipe, second sleeve pipe and the 3rd sleeve pipe are the stainless steel sleeve pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110147580 CN102191346B (en) | 2011-06-02 | 2011-06-02 | Combined type tuyere small sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110147580 CN102191346B (en) | 2011-06-02 | 2011-06-02 | Combined type tuyere small sleeve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102191346A true CN102191346A (en) | 2011-09-21 |
| CN102191346B CN102191346B (en) | 2013-02-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110147580 Active CN102191346B (en) | 2011-06-02 | 2011-06-02 | Combined type tuyere small sleeve |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103276127A (en) * | 2013-06-14 | 2013-09-04 | 鞍钢集团工程技术有限公司 | Small jacket for blast furnace wind gap |
| US10637393B2 (en) | 2006-12-06 | 2020-04-28 | Solaredge Technologies Ltd. | Distributed power harvesting systems using DC power sources |
| WO2023130823A1 (en) * | 2022-01-10 | 2023-07-13 | 唐山精研实业有限责任公司 | Composite material oxygen and coal spray gun |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1472345A (en) * | 2003-07-08 | 2004-02-04 | 河北省万全县丰华有色金属加工厂 | Assembled blowing mouth and its production |
| CN101270401A (en) * | 2008-05-13 | 2008-09-24 | 中冶京诚工程技术有限公司 | Pure oxygen non-blast furnace ironmaking end reduction furnace oxygen wind gap apparatus |
| CN201309943Y (en) * | 2008-12-02 | 2009-09-16 | 莱芜钢铁股份有限公司 | Cross flow type tuyere small sleeve |
| CN201495245U (en) * | 2009-08-25 | 2010-06-02 | 新余市长城铜产品开发有限公司 | Stream guidance type blast furnace tuyere small sleeve |
| CN202133287U (en) * | 2011-06-02 | 2012-02-01 | 中冶京诚工程技术有限公司 | Combined type tuyere small sleeve |
-
2011
- 2011-06-02 CN CN 201110147580 patent/CN102191346B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1472345A (en) * | 2003-07-08 | 2004-02-04 | 河北省万全县丰华有色金属加工厂 | Assembled blowing mouth and its production |
| CN101270401A (en) * | 2008-05-13 | 2008-09-24 | 中冶京诚工程技术有限公司 | Pure oxygen non-blast furnace ironmaking end reduction furnace oxygen wind gap apparatus |
| CN201309943Y (en) * | 2008-12-02 | 2009-09-16 | 莱芜钢铁股份有限公司 | Cross flow type tuyere small sleeve |
| CN201495245U (en) * | 2009-08-25 | 2010-06-02 | 新余市长城铜产品开发有限公司 | Stream guidance type blast furnace tuyere small sleeve |
| CN202133287U (en) * | 2011-06-02 | 2012-02-01 | 中冶京诚工程技术有限公司 | Combined type tuyere small sleeve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10637393B2 (en) | 2006-12-06 | 2020-04-28 | Solaredge Technologies Ltd. | Distributed power harvesting systems using DC power sources |
| CN103276127A (en) * | 2013-06-14 | 2013-09-04 | 鞍钢集团工程技术有限公司 | Small jacket for blast furnace wind gap |
| WO2023130823A1 (en) * | 2022-01-10 | 2023-07-13 | 唐山精研实业有限责任公司 | Composite material oxygen and coal spray gun |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102191346B (en) | 2013-02-20 |
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