CN110526742A - A kind of maceration extract improving LF graphite electrode service life - Google Patents
A kind of maceration extract improving LF graphite electrode service life Download PDFInfo
- Publication number
- CN110526742A CN110526742A CN201910833441.2A CN201910833441A CN110526742A CN 110526742 A CN110526742 A CN 110526742A CN 201910833441 A CN201910833441 A CN 201910833441A CN 110526742 A CN110526742 A CN 110526742A
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- Prior art keywords
- graphite electrode
- service life
- maceration extract
- electrode
- improving
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5072—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with oxides or hydroxides not covered by C04B41/5025
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/85—Coating or impregnation with inorganic materials
- C04B41/87—Ceramics
Abstract
The present invention relates to a kind of maceration extracts for improving LF graphite electrode service life, by weight percentage at being grouped as: SiO2:≤25%；Al2O3:≤5.0%；ZrO2:≤0.5%；P2O5≤ 5.0%；B2O3:≤0.5%；H2O: >=60%.Using the maceration extract impregnated graphite electrode, film is generated, then is placed in roasting plant, temperature is at 60-220 DEG C, and baking 24 hours or more, the oxidizing temperature of graphite electrode reached 1450 DEG C after baking, fundamentally reduces reactive power consumption.
Description
Technical field
The present invention relates to a kind of maceration extracts for improving LF graphite electrode service life.
Background technique
Nearly 2 years, since steel industry market is good, steel production scale constantly expanded, and electrode demand is caused to be continuously increased,
Once electrode once occurring, supply falls short of demand, phenomenon out of stock.Its price also soars all the way, and increases to more than 140,000 from more than 10,000.Therefore, it improves
Graphite electrode service life reduces consumption of electrode, has been extremely urgent.
Summary of the invention
In order to overcome the deficiencies of the prior art, the object of the present invention is to provide a kind of leachings for improving LF graphite electrode service life
Stain liquid is handled graphite electrode using the maceration extract, is produced using immersion-type graphite electrode, is reached raising electrode and is used the longevity
Life, the purpose for reducing consumption of electrode.
To achieve the above object, the invention is realized by the following technical scheme:
A kind of maceration extract improving LF graphite electrode service life, by weight percentage at being grouped as: SiO2:≤25%；
Al2O3:≤5.0%；ZrO2:≤0.5%；P2O5≤ 5.0%；B2O3:≤0.5%；H2O: >=60%.
A method of improving LF graphite electrode service life, comprising the following steps:
1) graphite electrode is placed in the maceration extract in dipping tank, after graphite electrode impregnates 5-7 days, there is antioxidation
Maceration extract, be impregnated into the micropore of graphite electrode, generate film；
2) graphite electrode after impregnating, then it is placed in roasting plant, temperature is at 60-220 DEG C, and baking 24 hours or more, baking
The oxidizing temperature of graphite electrode reaches 1450 DEG C afterwards, and the scene that can be sent to is put into production.
Compared with prior art, the beneficial effects of the present invention are:
Consumption of electrode is divided into normal smelting consumption and reactive power consumption, reactive power consumption ratio are about 25%.Using present invention side
Graphite electrode after method dipping, oxidizing temperature are up to 1450 DEG C, fundamentally reduce reactive power consumption.To reach raising electricity
Pole service life, the purpose for reducing consumption of electrode, reducing production cost.
Using the method for the present invention:
1, under same manufacturing condition, graphite electrode consumption can be reduced up to 15%-20%.
2, reducing leads to burst caused by falling off and bursting because oxidation occurs during heating for graphite electrode junction
Property molten steel recarburization phenomenon.
3, the flexural strength under graphite electrode high temperature, work safety accident caused by reducing because of lead rupture are improved.
4, impregnated graphite electrode is thicker, and sectional area becomes larger, and the effective power of graphite electrode output becomes larger, and can save electricity
Consumption.
5, it reduces and connects graphite electrode number, reduce labor intensity of workers.
Specific embodiment
The present invention is described in detail below, it should be noted that implementation of the invention embodiment party not limited to the following
Formula.
Embodiment
A kind of maceration extract improving LF graphite electrode service life, by weight percentage at being grouped as: SiO2:≤25%；
Al2O3:≤5.0%；ZrO2:≤0.5%；P2O5≤ 5.0%；B2O3:≤0.5%；H2O: >=60%.
A method of improving LF graphite electrode service life, comprising the following steps:
1) graphite electrode is placed in the maceration extract in dipping tank, after graphite electrode impregnates 5-7 days, there is antioxidation
Maceration extract, be impregnated into the micropore of graphite electrode, generate film；
2) graphite electrode after impregnating, then it is placed in roasting plant, temperature is at 60-220 DEG C, and baking 24 hours or more, drying
The oxidizing temperature of graphite electrode reaches 1450 DEG C afterwards, and the scene that can be sent to is put into production.
Specifically, improving the maceration extract of LF graphite electrode service life, the maceration extract is by weight percentage by following ingredients
Composition:
In addition to water, the partial size of remaining raw material reaches micron order.
Graphite electrode is placed in dipping tank by the method for improving LF graphite electrode service life, and graphite electrode impregnates 5-7 days
Afterwards, it with the maceration extract of antioxidation, is impregnated into the micropore of graphite electrode, generation film, the graphite electrode after dipping,
It is placed in roasting plant again to be toasted, temperature is at 60-220 DEG C, and baking 24 hours or more, scene investment life can be sent to after baking
It produces.It is improved using the oxidizing temperature of graphite electrode after this method to 1450 DEG C.
Consumption of electrode is divided into normal smelting consumption and reactive power consumption.Reactive power consumption ratio is about 25%.Electrode after dipping,
The oxidizing temperature for improving graphite electrode is up to 1450 DEG C, fundamentally reduces reactive power consumption.Make to reach raising electrode
With service life, the purpose of reduction consumption of electrode.It is used through being tested in LF furnace, graphite electrode consumption reduction amount is higher than 15%.
Claims (2)
1. a kind of maceration extract for improving LF graphite electrode service life, which is characterized in that by weight percentage at being grouped as: SiO2:
≤ 25%；Al2O3:≤5.0%；ZrO2:≤0.5%；P2O5≤ 5.0%；B2O3:≤0.5%；H2O: >=60%.
2. a kind of method for the raising LF graphite electrode service life realized using maceration extract described in claim 1, feature
It is, comprising the following steps:
1) graphite electrode is placed in the maceration extract in dipping tank, after graphite electrode impregnates 5-7 days, the leaching with antioxidation
Stain liquid, is impregnated into the micropore of graphite electrode, generates film；
2) graphite electrode after impregnating, then it is placed in roasting plant, temperature is at 60-220 DEG C, and baking 24 hours or more, stone after baking
The oxidizing temperature of electrode ink reaches 1450 DEG C, and the scene that can be sent to is put into production.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910833441.2A CN110526742A (en) | 2019-09-04 | 2019-09-04 | A kind of maceration extract improving LF graphite electrode service life |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910833441.2A CN110526742A (en) | 2019-09-04 | 2019-09-04 | A kind of maceration extract improving LF graphite electrode service life |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110526742A true CN110526742A (en) | 2019-12-03 |
Family
ID=68666911
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910833441.2A Pending CN110526742A (en) | 2019-09-04 | 2019-09-04 | A kind of maceration extract improving LF graphite electrode service life |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1296868A (en) * | 2000-11-21 | 2001-05-30 | 白荣铠 | Casting technology and apparatus for producing die-cast ingot, castings and conticast billet |
| WO2006062947A2 (en) * | 2004-12-09 | 2006-06-15 | Nanosys, Inc. | Nanowire-based membrane electrode assemblies for fuel cells |
| CN1968551A (en) * | 2005-11-16 | 2007-05-23 | 鞍钢股份有限公司 | Protective layer treatment process and apparatus for reducing graphite electrode loss |
| CN101052251A (en) * | 2007-04-12 | 2007-10-10 | 王玉凡 | Dipping type anti-oxidant for improving graphite electrode performance of electric arc steelmaking |
| CN101052253A (en) * | 2007-05-16 | 2007-10-10 | 陈丹音 | Antioxidant for carbon material and its making and using method |
| US20090294325A1 (en) * | 2008-06-03 | 2009-12-03 | Miller Douglas J | Reduced Puffing Needle Coke From Coal Tar |
| WO2018086522A1 (en) * | 2016-11-09 | 2018-05-17 | 中国科学院金属研究所 | Hollow foam material and preparation method and application thereof |
-
2019
- 2019-09-04 CN CN201910833441.2A patent/CN110526742A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1296868A (en) * | 2000-11-21 | 2001-05-30 | 白荣铠 | Casting technology and apparatus for producing die-cast ingot, castings and conticast billet |
| WO2006062947A2 (en) * | 2004-12-09 | 2006-06-15 | Nanosys, Inc. | Nanowire-based membrane electrode assemblies for fuel cells |
| CN1968551A (en) * | 2005-11-16 | 2007-05-23 | 鞍钢股份有限公司 | Protective layer treatment process and apparatus for reducing graphite electrode loss |
| CN101052251A (en) * | 2007-04-12 | 2007-10-10 | 王玉凡 | Dipping type anti-oxidant for improving graphite electrode performance of electric arc steelmaking |
| CN101052253A (en) * | 2007-05-16 | 2007-10-10 | 陈丹音 | Antioxidant for carbon material and its making and using method |
| US20090294325A1 (en) * | 2008-06-03 | 2009-12-03 | Miller Douglas J | Reduced Puffing Needle Coke From Coal Tar |
| WO2018086522A1 (en) * | 2016-11-09 | 2018-05-17 | 中国科学院金属研究所 | Hollow foam material and preparation method and application thereof |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191203 |
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| RJ01 | Rejection of invention patent application after publication |