CN101302114B - Ladle heat-insulating layer unshaped heat insulation coating and use method thereof - Google Patents
Ladle heat-insulating layer unshaped heat insulation coating and use method thereof Download PDFInfo
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- CN101302114B CN101302114B CN2008100698643A CN200810069864A CN101302114B CN 101302114 B CN101302114 B CN 101302114B CN 2008100698643 A CN2008100698643 A CN 2008100698643A CN 200810069864 A CN200810069864 A CN 200810069864A CN 101302114 B CN101302114 B CN 101302114B
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- heat
- ladle
- unshaped
- insulating layer
- insulation coating
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- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention discloses an unshaped insulation coating of a heat-insulation layer for a ladle and a method for using the same. The components in percentage by weight of the insulation coating are: 30 to 42 percent of Al2O3, 30 to 40 percent of SiO2, 6 to 13 percent of CaO, 8 to 14 percent of MgO, 0.5 to 3.0 percent of Fe2O3. The coasting of the invention can be coated on the surface of an insulating board for the ladle to avoid the carbonization of the insulating board, ensure the insulation effect of the heat-insulation layer and reduce the surface temperature of the ladle which lowers over 30 DEG C compared with the prior technical ladle of the same volume, thus consequently the service life can be prolonged to ensure steelmaking production.
Description
Technical field
The present invention relates to a kind of lagging material, particularly a kind of ladle heat-insulating layer unshaped heat insulation coating and using method thereof.
Background technology
Ladle is main steelmaking equipment, and ladle comprises shell, thermal insulation layer, permanent layer and working lining from outside to inside successively.In the prior art, thermal insulation layer is mainly built by laying bricks or stones by heat-insulating shield and is formed.In the production practice, along with the increase of ladle use round, ladle outer wall surface temperature raises gradually, and reason mainly is because heat-insulating shield carbonization situation is more serious.The heat-insulating shield carbonization is the principal element of thermal insulation layer degradation, directly causes ladle outer wall surface temperature to raise, and makes the interior molten steel temperature drop of bag big, and reduced the work-ing life of ladle, influences normally carrying out of STEELMAKING PRODUCTION.
Therefore, need a kind of ladle thermal insulation layer lagging material, be applied to avoid the heat-insulating shield carbonization behind the ladle, guarantee the heat insulation effect of thermal insulation layer, reduce the ladle surface temperature, thereby prolong the work-ing life of ladle, guarantee carrying out smoothly of STEELMAKING PRODUCTION.
Summary of the invention
In view of this, the purpose of this invention is to provide a kind of ladle heat-insulating layer unshaped heat insulation coating and using method thereof, ladle heat-insulating layer unshaped heat insulation coating of the present invention is applied to can avoid the heat-insulating shield carbonization behind the ladle, guarantee the heat insulation effect of thermal insulation layer, reduce the ladle surface temperature, thereby prolong the work-ing life of ladle, guarantee carrying out smoothly of STEELMAKING PRODUCTION.
Ladle heat-insulating layer unshaped heat insulation coating of the present invention comprises following component: Al by weight percentage
2O
330%～42%, SiO
230%～40%, CaO 6%～13%, and MgO 8%～14%, Fe
2O
30.5%～3.0%.
Further, comprise following component: Al by weight percentage
2O
340%, SiO
235%, CaO 10%, MgO12%, Fe
2O
33%;
The invention also discloses the using method of ladle heat-insulating layer unshaped heat insulation coating, may further comprise the steps:
A. get aequum Al
2O
3, SiO
2, CaO, MgO and Fe
2O
3, add suitable quantity of water and stir, the furnishing pasty state;
B. coating is coated in the internal surface of ladle wall heat-insulating shield;
C. seasoning is more than 24 hours.
Further, among the step b, paint thickness is 30mm;
Further, described heat-insulating shield is hard fiber heat-insulating shield or nanometer reflector heat-insulating shield;
Further, described heat-insulating shield thickness is 20mm.
Beneficial effect of the present invention: ladle heat-insulating layer unshaped heat insulation coating of the present invention, after coating of the present invention is applied to ladle heat-insulating shield surface, can avoid the heat-insulating shield carbonization, guarantee the heat insulation effect of thermal insulation layer, reduce the ladle surface temperature, compare with the prior art ladle of equal volume, surperficial temperature drop will hang down more than 30 ℃, thereby prolong the work-ing life of ladle, guarantee carrying out smoothly of STEELMAKING PRODUCTION.
Embodiment
Embodiment one
The ladle heat-insulating layer unshaped heat insulation coating of present embodiment comprises following component: Al by weight percentage
2O
340%, SiO
235%, CaO 10%, and MgO 12%, Fe
2O
33%;
Utilize the using method of the ladle heat-insulating layer unshaped heat insulation coating of present embodiment, may further comprise the steps:
A. get the Al of present embodiment quantity
2O
3, SiO
2, CaO, MgO and Fe
2O
3, add water and stir, the furnishing pasty state;
B. coating is coated in the internal surface of ladle wall hard fiber heat-insulating shield, paint thickness is 30mm; The thickness of described hard fiber heat-insulating shield is 20mm;
C. seasoning is more than 24 hours.
Embodiment two
The ladle heat-insulating layer unshaped heat insulation coating of present embodiment comprises following component: Al by weight percentage
2O
330%, SiO
240%, CaO 13%, Mg14%, Fe
2O
33%;
Utilize the using method of the ladle heat-insulating layer unshaped heat insulation coating of present embodiment, may further comprise the steps:
A. get the Al of present embodiment quantity
2O
3, SiO
2, CaO, MgO and Fe
2O
3, add water and stir, the furnishing pasty state;
B. coating is coated in the internal surface of ladle wall hard fiber heat-insulating shield, paint thickness is 30mm; The thickness of described hard fiber heat-insulating shield is 20mm;
C. seasoning is more than 24 hours.
Embodiment three
The ladle heat-insulating layer unshaped heat insulation coating of present embodiment comprises following component: Al by weight percentage
2O
342%, SiO
233%, CaO 8%, and MgO 14%, Fe
2O
33%;
Utilize the using method of the ladle heat-insulating layer unshaped heat insulation coating of present embodiment, may further comprise the steps:
A. get the Al of present embodiment quantity
2O
3, SiO
2, CaO, MgO and Fe
2O
3, add water and stir, the furnishing pasty state;
B. coating is coated in the internal surface of ladle wall hard fiber heat-insulating shield, paint thickness is 30mm; The thickness of described hard fiber heat-insulating shield is 20mm;
C. seasoning is more than 24 hours.
Embodiment four
The ladle heat-insulating layer unshaped heat insulation coating of present embodiment comprises following component: Al by weight percentage
2O
335%, SiO
237%, CaO 12.5%, and MgO 14%, Fe
2O
31.5%.
Utilize the using method of the ladle heat-insulating layer unshaped heat insulation coating of present embodiment, may further comprise the steps:
A. get the Al of present embodiment quantity
2O
3, SiO
2, CaO, MgO and Fe
2O
3, add water and stir, the furnishing pasty state;
B. coating is coated in the internal surface of ladle wall hard fiber heat-insulating shield, paint thickness is 30mm; The thickness of described hard fiber heat-insulating shield is 20mm;
C. seasoning is more than 24 hours.
Embodiment five
The ladle heat-insulating layer unshaped heat insulation coating of present embodiment comprises following component: Al by weight percentage
2O
342%, SiO
230%, CaO 13%, and MgO 12%, Fe
2O
33%.
Utilize the using method of the ladle heat-insulating layer unshaped heat insulation coating of present embodiment, may further comprise the steps:
A. get the Al of present embodiment quantity
2O
3, SiO
2, CaO, MgO and Fe
2O
3, add water and stir, the furnishing pasty state;
B. coating is coated in the internal surface of ladle wall nanometer reflector heat-insulating shield, paint thickness is 30mm; The thickness of described nanometer reflector heat-insulating shield is 20mm;
C. seasoning is more than 24 hours.
Embodiment six
The ladle heat-insulating layer unshaped heat insulation coating of present embodiment comprises following component: Al by weight percentage
2O
342%, SiO
240%, CaO 9.5%, and MgO 8%, Fe
2O
30.5%.
Utilize the using method of the ladle heat-insulating layer unshaped heat insulation coating of present embodiment, may further comprise the steps:
A. get the Al of present embodiment quantity
2O
3, SiO
2, CaO, MgO and Fe
2O
3, add water and stir, the furnishing pasty state;
B. coating is coated in the internal surface of ladle wall nanometer reflector heat-insulating shield, paint thickness is 30mm; The thickness of described nanometer reflector heat-insulating shield is 20mm;
C. seasoning is more than 24 hours.
Embodiment seven
The ladle heat-insulating layer unshaped heat insulation coating of present embodiment comprises following component: Al by weight percentage
2O
342%, SiO
240%, CaO 6%, and MgO 10%, Fe
2O
32%.
Utilize the using method of the ladle heat-insulating layer unshaped heat insulation coating of present embodiment, may further comprise the steps:
A. get the Al of present embodiment quantity
2O
3, SiO
2, CaO, MgO and Fe
2O
3, add water and stir, the furnishing pasty state;
B. coating is coated in the internal surface of ladle wall nanometer reflector heat-insulating shield, paint thickness is 30mm; The thickness of described nanometer reflector heat-insulating shield is 20mm;
C. seasoning is more than 24 hours.
Paint thickness is 30mm among the above embodiment, and according to different applying working conditions, thickness can change in the practical application; The thickness of heat-insulating shield is not limited to 20mm, can select different heat-insulating shield thickness according to actual condition; All can reach goal of the invention.
Explanation is at last, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can carry out the modification in the parameter area or be equal to replacement technical scheme of the present invention, and not breaking away from the aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (5)
1. a ladle heat-insulating layer unshaped heat insulation coating is characterized in that: comprise following component: Al by weight percentage
2O
330%～42%, SiO
230%～40%, CaO 6%～13%, and MgO 8%～14%, Fe
2O
30.5%～3.0%.
2. ladle heat-insulating layer unshaped heat insulation coating according to claim 1 is characterized in that: comprise following component: Al by weight percentage
2O
340%, SiO
235%, CaO 10%, and MgO 12%, Fe
2O
33%.
3. the using method of the described ladle heat-insulating layer unshaped heat insulation coating of claim 1 is characterized in that: may further comprise the steps:
A. get aequum Al
2O
3, SiO
2, CaO, MgO and Fe
2O
3, add suitable quantity of water and stir, the furnishing pasty state;
B. coating is coated in the internal surface of ladle wall heat-insulating shield; Paint thickness is 30mm;
C. seasoning is more than 24 hours.
4. the using method of ladle heat-insulating layer unshaped heat insulation coating according to claim 3, it is characterized in that: described heat-insulating shield is hard fiber heat-insulating shield or nanometer reflector heat-insulating shield.
5. according to the using method of claim 3 or 4 described ladle heat-insulating layer unshaped heat insulation coatings, it is characterized in that: described heat-insulating shield thickness is 20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100698643A CN101302114B (en) | 2008-06-23 | 2008-06-23 | Ladle heat-insulating layer unshaped heat insulation coating and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100698643A CN101302114B (en) | 2008-06-23 | 2008-06-23 | Ladle heat-insulating layer unshaped heat insulation coating and use method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101302114A CN101302114A (en) | 2008-11-12 |
| CN101302114B true CN101302114B (en) | 2011-01-19 |
Family
ID=40112240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100698643A Expired - Fee Related CN101302114B (en) | 2008-06-23 | 2008-06-23 | Ladle heat-insulating layer unshaped heat insulation coating and use method thereof |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101700982B (en) * | 2009-12-07 | 2012-10-10 | 二重集团（德阳）重型装备股份有限公司 | Heat insulating material for forging large-size forge piece |
| CN101768000B (en) * | 2009-12-30 | 2012-05-30 | 周建安 | Method for preparing ladle liner permanent layer by adopting perlite composite insulation board |
| CN107382331A (en) * | 2017-06-28 | 2017-11-24 | 常州莱尚纺织品有限公司 | A kind of anti-slag type tundish paint |
| CN108178643B (en) * | 2018-01-27 | 2020-11-10 | 巩义市亿隆耐火材料厂 | Surface spray coating of metal frame and anchoring piece for tundish cover and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1136025A (en) * | 1996-03-18 | 1996-11-20 | 景占义 | Low magnesium oxide heat-insulation materials and its production |
| US6723442B1 (en) * | 1999-06-24 | 2004-04-20 | Siemens Aktiengesellschaft | Ceramic material, method for the production thereof, use of the ceramic material, and layer of the ceramic material on a metallic or ceramic body |
| CN1562862A (en) * | 2004-03-19 | 2005-01-12 | 陈占魁 | Material of insulating heat preservation |
-
2008
- 2008-06-23 CN CN2008100698643A patent/CN101302114B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1136025A (en) * | 1996-03-18 | 1996-11-20 | 景占义 | Low magnesium oxide heat-insulation materials and its production |
| US6723442B1 (en) * | 1999-06-24 | 2004-04-20 | Siemens Aktiengesellschaft | Ceramic material, method for the production thereof, use of the ceramic material, and layer of the ceramic material on a metallic or ceramic body |
| CN1562862A (en) * | 2004-03-19 | 2005-01-12 | 陈占魁 | Material of insulating heat preservation |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平7-258818A 1995.10.09 |
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| Publication number | Publication date |
|---|---|
| CN101302114A (en) | 2008-11-12 |
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Owner name: CHONGQING IRON AND STEEL CO., LTD. Free format text: FORMER OWNER: CHONGQING IRON + STEEL (GROUP) CO., LTD. Effective date: 20120618 |
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Free format text: CORRECT: ADDRESS; FROM: 400080 DADUKOU, CHONGQING TO: 401258 CHANGSHOU, CHONGQING |
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Effective date of registration: 20120618 Address after: No. 401258 Chongqing City Economic and Technological Development Zone, Changshou District Road Patentee after: Chongqing Iron and Steel Co., Ltd. Address before: Three village 400080 Dadukou District of Chongqing Dayan No. 1 Patentee before: Chongqing Iron & Steel (Group) Co., Ltd. |
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Granted publication date: 20110119 Termination date: 20150623 |
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