CN102838362A - Chamotte for rapidly replacing water feeding opening of steel ladle in online manner - Google Patents
Chamotte for rapidly replacing water feeding opening of steel ladle in online manner Download PDFInfo
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- CN102838362A CN102838362A CN2012103459975A CN201210345997A CN102838362A CN 102838362 A CN102838362 A CN 102838362A CN 2012103459975 A CN2012103459975 A CN 2012103459975A CN 201210345997 A CN201210345997 A CN 201210345997A CN 102838362 A CN102838362 A CN 102838362A
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- granularity
- chamotte
- pipe end
- filling pipe
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Abstract
The invention relates to the technical field of a metallurgical fire-resistant material and provides chamotte for rapidly replacing a water feeding opening of a steel ladle in an online manner. The chamotte comprises the components in percentage by weight as follows: 30-50% of Al2O3, 2-8% of SiO2, 35-60% of C, and 2-5% of binding agent, wherein the sum of the components is 100%. Furthermore, 0.2-1% of dispersing agent is added, and the content of the dispersing agent is 0.2-1% of a total amount of the chamotte. The chamotte for rapidly replacing the water feeding opening of the steel ladle in the online manner provided by the invention has the advantages of high binding strength, low sintering strength, and no steel leakage; the online rapid replacement of the water feeding opening of the steel ladle can be realized; the replacement efficiency of the water feeding opening is obviously improved; and the labor intensity is reduced.
Description
Technical field
The present invention relates to metallurgical technical field of refractory materials, a kind of specifically chamotte that is used for ladle fast online replacement filling pipe end.
Background technology
Ladle nozzle; Generally be divided into upper and lower two mouths of a river; The mouth of a river is installed in the ladle nozzle brick cup up and down, generally adopts chamotte that filling pipe end is installed in the pocket block at present, when using certain stove to use as a servant, need carry out on-line replacing to filling pipe end; Because chamotte produces sintering filling pipe end firmly is fixed in the pocket block in steel pouring process, filling pipe end is difficult to take off fast and easily.This moment, the operative employee need impact filling pipe end by phoenix pick, and the running time is long, labour intensity is big and fragile pocket block.If pocket block is impaired, ladle need build by laying bricks or stones again, toast, and whole process has not only reduced the normal turnover that also can influence ladle work-ing life of anti-material, is unfavorable for allegro production.
Changing under the filling pipe end operational condition at present; Chamotte burns the key that the back cohesive strength is a decision filling pipe end fast online replacement; If reduce the high temperature sintering intensity of chamotte and don't reduce low-temperature bond strength; Can also in use not ooze steel, so just can realize the fast online replacement of ladle upper nozzle.
Summary of the invention
Technical problem to be solved by this invention is that the shortcoming to above prior art exists proposes a kind of chamotte that is used for ladle fast online replacement filling pipe end; The antiseepage steel, application property is good, and cohesive strength is high; Sintering strength is low, can significantly improve filling pipe end and change efficient, reduces labour intensity.
The technical scheme that the present invention solves above technical problem is:
A kind of chamotte that is used for ladle fast online replacement filling pipe end, its weight percent component is: Al
2O
3: 30～50%, SiO
2: 2～8%, C:35～60%, wedding agent: 2～5%, more than each component sum be 100%; In addition, add dispersion agent: 0.2～1%, said dispersant is 0.2～1% of a chamotte total amount.
It is that the above-mentioned raw material thorough mixing that has prepared is even that filling pipe end of the present invention is changed with chamotte, tempers before the construction at the scene to construction requirement to get final product.
The technical scheme that the present invention further limits is:
The aforesaid chamotte that is used for ladle fast online replacement filling pipe end, Al
2O
3For granularity less than the fused white corundum fine powder of 45um or granularity less than a kind of among both of the brown corundum fine powder of 76um or both combinations.
The aforesaid chamotte that is used for ladle fast online replacement filling pipe end, SiO
2For granularity less than 2um and SiO
2Content is not less than 90% silicon powder.
The aforesaid chamotte that is used for ladle fast online replacement filling pipe end, C are a kind of in flaky graphite or the graphite electrode powder or both combinations, and granularity is below the 45um.
The aforesaid chamotte that is used for ladle fast online replacement filling pipe end, the wedding agent component that is weight percentage is: sodium lignosulfonate 10%-50%, aluminium dihydrogen phosphate fine powder 50%-90%.Sodium lignosulfonate can provide the bonding strength under the low-temperature condition, the bonding strength during the aluminium dihydrogen phosphate fine powder can provide under the high temperature, and the two combination can provide low temperature to the pyritous bonding strength.
The aforesaid chamotte that is used for ladle fast online replacement filling pipe end, dispersion agent are the inorganic salt type dispersion agent, and the inorganic salt type dispersion agent is tripoly phosphate sodium STPP or Sodium hexametaphosphate 99.
The aforesaid chamotte that is used for ladle fast online replacement filling pipe end, its weight percent component is: granularity is less than the fused white corundum fine powder 42% of 45um, and granularity is less than the SiO of 2um
2Content is not less than 90% silicon powder 7%, and granularity is less than 45um flaky graphite 46%, and wedding agent is 5% sodium lignosulfonate, and dispersion agent is to add 0.2% tripoly phosphate sodium STPP.
The aforesaid chamotte that is used for ladle fast online replacement filling pipe end, its weight percent component is: granularity is less than the fused white corundum fine powder 30% of 45um, and granularity is less than the brown corundum 20% of 76um, and granularity is less than the SiO of 2um
2Content is not less than 90% silicon powder 3%, and granularity is less than 45um flaky graphite 45%, and wedding agent is 2% aluminium dihydrogen phosphate fine powder, and dispersion agent is to add 0.2% tripoly phosphate sodium STPP.
The aforesaid chamotte that is used for ladle fast online replacement filling pipe end, its weight percent component is: granularity is less than the fused white corundum fine powder 49% of 45um, and granularity is less than the SiO of 2um
2Content is not less than 90% silicon powder 5%, and granularity is less than 45um electrode graphite powder 43%, and wedding agent is 2% aluminium dihydrogen phosphate fine powder and 1% sodium lignosulfonate, and dispersion agent is to add 0.2% tripoly phosphate sodium STPP.
The aforesaid chamotte that is used for ladle fast online replacement filling pipe end, its weight percent component is: granularity is less than the fused white corundum fine powder 30% of 45um, and granularity is less than 76um palm fibre corundum fine powder 10%, and granularity is less than the SiO of 2um
2Content is not less than 90% silicon powder 5%, and granularity is less than 45um flaky graphite 20% and electrode graphite powder 30%, and wedding agent is 3% aluminium dihydrogen phosphate fine powder and 2% sodium lignosulfonate, and dispersion agent is to add 0.2% tripoly phosphate sodium STPP.
The invention has the beneficial effects as follows: the chamotte that is used for ladle fast online replacement filling pipe end of the present invention has the cohesive strength height; Sintering strength is low, does not ooze the advantage of steel, can realize the fast online replacement of ladle upper nozzle; Significantly improve filling pipe end and change efficient, reduce labour intensity.In use the operative employee only need rely on and simple and mechanically can realize the ladle upper nozzle fast online replacement, has reduced labour intensity, has improved working efficiency, has realized the quick turnover of ladle.
Embodiment
Embodiment 1
The chamotte that is used for ladle fast online replacement filling pipe end of present embodiment, its weight percent component is: granularity is less than the fused white corundum fine powder 42% of 45um, and granularity is less than the SiO of 2um
2Content is not less than 90% silicon powder 7%, and granularity is less than 45um flaky graphite 46%, and wedding agent is 5% sodium lignosulfonate, and dispersion agent is to add 0.2% tripoly phosphate sodium STPP.
It is that the above-mentioned raw material thorough mixing that has prepared is even that the filling pipe end of present embodiment is changed with chamotte, tempers before the construction at the scene to construction requirement to get final product.In use the operative employee only need rely on and simple and mechanically can realize the ladle upper nozzle fast online replacement, has reduced labour intensity, has improved working efficiency, has realized the quick turnover of ladle.
Embodiment 2
The chamotte that is used for ladle fast online replacement filling pipe end of present embodiment, its weight percent component is: granularity is less than the fused white corundum fine powder 30% of 45um, and granularity is less than the brown corundum 20% of 76um, and granularity is less than the SiO of 2um
2Content is not less than 90% silicon powder 3%, and granularity is less than 45um flaky graphite 45%, and wedding agent is 2% aluminium dihydrogen phosphate fine powder, and dispersion agent is to add 0.2% tripoly phosphate sodium STPP.
It is that the above-mentioned raw material thorough mixing that has prepared is even that the filling pipe end of present embodiment is changed with chamotte, tempers before the construction at the scene to construction requirement to get final product.In use the operative employee only need rely on and simple and mechanically can realize the ladle upper nozzle fast online replacement, has reduced labour intensity, has improved working efficiency, has realized the quick turnover of ladle.
Embodiment 3
The chamotte that is used for ladle fast online replacement filling pipe end of present embodiment, its weight percent component is: granularity is less than the fused white corundum fine powder 49% of 45um, and granularity is less than the SiO of 2um
2Content is not less than 90% silicon powder 5%, and granularity is less than 45um electrode graphite powder 43%, and wedding agent is 2% aluminium dihydrogen phosphate fine powder and 1% sodium lignosulfonate, and dispersion agent is to add 0.2% tripoly phosphate sodium STPP.
It is that the above-mentioned raw material thorough mixing that has prepared is even that the filling pipe end of present embodiment is changed with chamotte, tempers before the construction at the scene to construction requirement to get final product.In use the operative employee only need rely on and simple and mechanically can realize the ladle upper nozzle fast online replacement, has reduced labour intensity, has improved working efficiency, has realized the quick turnover of ladle.
Embodiment 4
The chamotte that is used for ladle fast online replacement filling pipe end of present embodiment, its weight percent component is: granularity is less than the fused white corundum fine powder 30% of 45um, and granularity is less than 76um palm fibre corundum fine powder 10%, and granularity is less than the SiO of 2um
2Content is not less than 90% silicon powder 5%, and granularity is less than 45um flaky graphite 20% and electrode graphite powder 30%, and wedding agent is 3% aluminium dihydrogen phosphate fine powder and 2% sodium lignosulfonate, and dispersion agent is to add 0.2% tripoly phosphate sodium STPP.
It is that the above-mentioned raw material thorough mixing that has prepared is even that the filling pipe end of present embodiment is changed with chamotte, tempers before the construction at the scene to construction requirement to get final product.In use the operative employee only need rely on and simple and mechanically can realize the ladle upper nozzle fast online replacement, has reduced labour intensity, has improved working efficiency, has realized the quick turnover of ladle.
Except that the foregoing description, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of requirement of the present invention.
Claims (10)
1. chamotte that is used for ladle fast online replacement filling pipe end, it is characterized in that: its weight percent component is: Al
2O
3: 30～50%, SiO
2: 2～8%, C:35～60%, wedding agent: 2～5%, more than each component sum be 100%; In addition, add dispersion agent: 0.2～1%, said dispersant is 0.2～1% of a chamotte total amount.
2. the chamotte that is used for ladle fast online replacement filling pipe end as claimed in claim 1 is characterized in that: said Al
2O
3For granularity less than the fused white corundum fine powder of 45um or granularity less than a kind of among both of the brown corundum fine powder of 76um or both combinations.
3. the chamotte that is used for ladle fast online replacement filling pipe end as claimed in claim 1 is characterized in that: said SiO
2For granularity less than 2um and SiO
2Content is not less than 90% silicon powder.
4. the chamotte that is used for ladle fast online replacement filling pipe end as claimed in claim 1 is characterized in that: said C is a kind of in flaky graphite or the graphite electrode powder or both combinations, and granularity is below the 45um.
5. the chamotte that is used for ladle fast online replacement filling pipe end as claimed in claim 1 is characterized in that: the said wedding agent component that is weight percentage is: sodium lignosulfonate 10%-50%, aluminium dihydrogen phosphate fine powder 50%-90%.
6. the chamotte that is used for ladle fast online replacement filling pipe end as claimed in claim 1 is characterized in that: said dispersion agent is the inorganic salt type dispersion agent, and said inorganic salt type dispersion agent is tripoly phosphate sodium STPP or Sodium hexametaphosphate 99.
7. like the described chamotte that is used for ladle fast online replacement filling pipe end of arbitrary claim among the claim 1-6, it is characterized in that: its weight percent component is: granularity is less than the fused white corundum fine powder 42% of 45um, and granularity is less than the SiO of 2um
2Content is not less than 90% silicon powder 7%, and granularity is less than 45um flaky graphite 46%, and wedding agent is 5% sodium lignosulfonate, and dispersion agent is to add 0.2% tripoly phosphate sodium STPP.
8. like the described chamotte that is used for ladle fast online replacement filling pipe end of arbitrary claim among the claim 1-6; It is characterized in that: its weight percent component is: granularity is less than the fused white corundum fine powder 30% of 45um; Granularity is less than the brown corundum 20% of 76um, and granularity is less than the SiO of 2um
2Content is not less than 90% silicon powder 3%, and granularity is less than 45um flaky graphite 45%, and wedding agent is 2% aluminium dihydrogen phosphate fine powder, and dispersion agent is to add 0.2% tripoly phosphate sodium STPP.
9. like the described chamotte that is used for ladle fast online replacement filling pipe end of arbitrary claim among the claim 1-6, it is characterized in that: its weight percent component is: granularity is less than the fused white corundum fine powder 49% of 45um, and granularity is less than the SiO of 2um
2Content is not less than 90% silicon powder 5%, and granularity is less than 45um electrode graphite powder 43%, and wedding agent is 2% aluminium dihydrogen phosphate fine powder and 1% sodium lignosulfonate, and dispersion agent is to add 0.2% tripoly phosphate sodium STPP.
10. like the described chamotte that is used for ladle fast online replacement filling pipe end of arbitrary claim among the claim 1-6; It is characterized in that: its weight percent component is: granularity is less than the fused white corundum fine powder 30% of 45um; Granularity is less than 76um palm fibre corundum fine powder 10%, and granularity is less than the SiO of 2um
2Content is not less than 90% silicon powder 5%, and granularity is less than 45um flaky graphite 20% and electrode graphite powder 30%, and wedding agent is 3% aluminium dihydrogen phosphate fine powder and 2% sodium lignosulfonate, and dispersion agent is to add 0.2% tripoly phosphate sodium STPP.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210345997.5A CN102838362B (en) | 2012-09-18 | 2012-09-18 | Chamotte for rapidly replacing water feeding opening of steel ladle in online manner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210345997.5A CN102838362B (en) | 2012-09-18 | 2012-09-18 | Chamotte for rapidly replacing water feeding opening of steel ladle in online manner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102838362A true CN102838362A (en) | 2012-12-26 |
| CN102838362B CN102838362B (en) | 2014-11-26 |
Family
ID=47366128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210345997.5A Active CN102838362B (en) | 2012-09-18 | 2012-09-18 | Chamotte for rapidly replacing water feeding opening of steel ladle in online manner |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105957725A (en) * | 2016-06-24 | 2016-09-21 | 安徽江威精密制造有限公司 | Composite electrode material added with bamboo charcoal and nickel aluminum hydrotalcite composite material and preparation method of composite electrode material |
| CN107445631A (en) * | 2017-07-27 | 2017-12-08 | 浙江铁狮高温材料有限公司 | A kind of preparation method of anti-erosion ladle long nozzle |
| CN110885233A (en) * | 2019-12-16 | 2020-03-17 | 钢城集团凉山瑞海实业有限公司 | Ladle brick aluminum-magnesium fire clay and preparation method thereof |
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| CN1232806A (en) * | 1999-05-28 | 1999-10-27 | 冶金工业部钢铁研究总院 | Fire clay for building blast furnace |
| JP2001019566A (en) * | 1999-07-07 | 2001-01-23 | Ngk Insulators Ltd | Heat-insulating spraying material and forming of furnace wall structure using the material |
| CN1417158A (en) * | 2001-11-06 | 2003-05-14 | 武汉威林炉衬材料有限责任公司 | Seam material |
| CN101935224A (en) * | 2010-09-02 | 2011-01-05 | 吴江市液铸液压件铸造有限公司 | Coating for repairing front furnace of casting furnace |
| CN102093064A (en) * | 2010-12-21 | 2011-06-15 | 北京联合荣大工程材料有限责任公司 | Refractory spray coating with high steel fiber content and spraying method thereof |
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2012
- 2012-09-18 CN CN201210345997.5A patent/CN102838362B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1232806A (en) * | 1999-05-28 | 1999-10-27 | 冶金工业部钢铁研究总院 | Fire clay for building blast furnace |
| JP2001019566A (en) * | 1999-07-07 | 2001-01-23 | Ngk Insulators Ltd | Heat-insulating spraying material and forming of furnace wall structure using the material |
| CN1417158A (en) * | 2001-11-06 | 2003-05-14 | 武汉威林炉衬材料有限责任公司 | Seam material |
| CN101935224A (en) * | 2010-09-02 | 2011-01-05 | 吴江市液铸液压件铸造有限公司 | Coating for repairing front furnace of casting furnace |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105957725A (en) * | 2016-06-24 | 2016-09-21 | 安徽江威精密制造有限公司 | Composite electrode material added with bamboo charcoal and nickel aluminum hydrotalcite composite material and preparation method of composite electrode material |
| CN107445631A (en) * | 2017-07-27 | 2017-12-08 | 浙江铁狮高温材料有限公司 | A kind of preparation method of anti-erosion ladle long nozzle |
| CN107445631B (en) * | 2017-07-27 | 2019-09-03 | 浙江铁狮高温材料有限公司 | A kind of preparation method of anti-erosion ladle long nozzle |
| CN110885233A (en) * | 2019-12-16 | 2020-03-17 | 钢城集团凉山瑞海实业有限公司 | Ladle brick aluminum-magnesium fire clay and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102838362B (en) | 2014-11-26 |
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