CN115677362B - Refractory gunning material for regenerated aluminum - Google Patents
Refractory gunning material for regenerated aluminum Download PDFInfo
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- CN115677362B CN115677362B CN202211426829.9A CN202211426829A CN115677362B CN 115677362 B CN115677362 B CN 115677362B CN 202211426829 A CN202211426829 A CN 202211426829A CN 115677362 B CN115677362 B CN 115677362B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The invention discloses a reclaimed aluminum fire-resistant gunning material which comprises reclaimed high-aluminum powder, ferroalloy dust, magnesia carbon dust, 90-skin sand powder, reclaimed slide plate powder, lithium bentonite, carboxymethyl cellulose, high-temperature asphalt powder and an additive. According to the invention, the content of alumina serving as a regeneration raw material is higher, and two types of fly ash are used for increasing the fluidity of materials, wherein a carbon source is also introduced into one type of fly ash and powder, so that the degradation of the oxidation strength of part of carbon is easier and more convenient after the fly ash is used, magnesia fine powder and silicon dioxide in ferroalloy fly ash are added with water to form magnesium water silicon to improve the bonding strength, high-temperature asphalt is used for further assisting in bonding when a hot tank is sprayed and repaired, lithium bentonite and carboxymethyl cellulose are used for improving the fluidity and suspension effect of spray paint, so that the precipitation of pug is avoided, the air permeability of the materials is increased by explosion-proof fibers, and the explosion-proof performance is improved. The invention reduces the cost, is environment-friendly, reduces the manufacturing cost on the premise of ensuring the service performance of materials, and is energy-saving and environment-friendly for recycling.
Description
Technical Field
The invention relates to the technical field of smelting refractory materials, in particular to a regenerated aluminum refractory gunning material.
Background
The aluminum fire-resistant gunning material is mainly used in various tank liners for slag filling and pouring, and the manufactured aluminum spray material needs to have good construction spraying performance and bonding performance according to the use requirements, and the tank liner is convenient to disassemble after being used. However, the existing gunning material is difficult to meet the requirements, the sinking speed of the pug is high when the material construction is easy to occur, normal construction cannot be guaranteed, the problems of difficult spraying and material waste are easily caused due to high rebound rate, the liner body is inconvenient to disassemble when the sintering is serious, the construction difficulty is increased due to other measures required to be taken for improving the rebound rate, and the turnover of the tank body is influenced when the construction is serious. The product produced by using the raw materials only has high manufacturing cost and weak general market competitiveness.
Disclosure of Invention
The invention aims to provide a regenerated aluminum refractory gunning material to solve the problems.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the regenerated aluminum refractory gunning material is prepared from the following raw materials in parts by weight: 50-60 parts of regenerated high-alumina powder, 10-15 parts of ferroalloy dust, 10-15 parts of magnesia carbon dust, 3-5 parts of 90-peel sand powder, 5-10 parts of recovered slide plate powder, 2-3 parts of lithium bentonite, 0.5-1 part of carboxymethyl cellulose, 3-5 parts of high-temperature asphalt powder and 0.2-0.5 part of additive.
In order to further realize the invention, the regenerated high-alumina powder is powder which is recovered after the hot blast stove is dismantled, is selected and is ground into 200 meshes.
In order to further realize the invention, the ferroalloy dust is low-grade silicon micropowder in the ferroalloy byproducts.
In order to further realize the invention, the magnesia carbon dedusting ash is generated by a dedusting system when the magnesia carbon bricks are crushed after the steel ladle is used.
In order to further realize the invention, the recycling slide plate powder is powder which is selected by a slide plate after being used by a ladle and then is ground into 200 meshes.
In order to further realize the invention, the additive adopts explosion-proof fibers.
The preparation method of the regenerated aluminum fire-resistant gunning material comprises the steps of grinding particles with the particle size more than 200 meshes in raw materials of the regenerated aluminum fire-resistant gunning material to be less than or equal to 200 meshes, uniformly mixing the particles with other raw materials with the particle size less than or equal to 200 meshes, and packaging the mixture in small bags or ton bags with plastic linings.
In order to further realize the invention, the particles are ground by a Raymond mill.
Compared with the prior art, the invention has the beneficial effects that:
the design principle of the invention is that the introduced regenerated raw material has higher alumina content than normal pure raw material, the regenerated raw material is prepared by combining different use environments, the reasonable selection of materials ensures various use performances of products, different two types of dust are introduced according to actual conditions, the important point is to increase the flow performance of the materials, one of the dust and powder is also introduced with a carbon source, the purpose is that the degradation body is easier and more convenient along with the reduction of partial carbon oxidation strength after use, and the combination strength of magnesium water and silicon is formed by introducing magnesia fine powder and silicon dioxide in ferroalloy dust under the action of adding water, and the purpose of introducing high-temperature asphalt is further assisted combination when spraying and repairing a hot pot. The introduction of the lithium bentonite and the carboxymethyl cellulose improves the fluidity and suspension effect of the spray coating and avoids the precipitation of pugs. Compared with normal products, the explosion-proof fiber is introduced to moderately increase the air permeability of the material and improve the explosion-proof performance. Finally, different use environments are realized by adjusting different grades of materials, so that the optimal batching cost is achieved.
The invention introduces the recycled material, which not only can reduce the cost and is environment-friendly, but also greatly reduces the manufacturing cost on the premise of ensuring the use performance of the material, and the invention can realize the recycling and the energy conservation and the environment protection.
Detailed Description
The invention is further described in connection with the following detailed description. It should be understood that these examples are illustrative of the present invention and are not intended to limit the scope of the present invention.
The regenerated aluminum refractory gunning material is prepared from the following raw materials in parts by weight: 50-60 parts of regenerated high-alumina powder, 10-15 parts of ferroalloy dust, 10-15 parts of magnesia carbon dust, 3-5 parts of 90-layer sand powder, 5-10 parts of recovered slide plate powder, 2-3 parts of lithium bentonite, 0.5-1 part of carboxymethyl cellulose, 3-5 parts of high-temperature asphalt powder and 0.2-0.5 part of explosion-proof fiber.
Wherein, the regenerated high-alumina powder is powder which is recovered after the hot blast stove is dismantled, is selected and is ground into 200 meshes; the ferroalloy dust is low-grade silicon micropowder in the ferroalloy byproducts; the magnesia carbon dedusting ash is generated by a dedusting system when the magnesia carbon bricks are crushed after the steel ladle is used; the recovered slide plate powder is powder which is picked by a slide plate after being used for steel ladle and is ground into 200 meshes.
The preparation method of the regenerated aluminum fire-resistant gunning material comprises the steps of grinding particles with the particle size more than 200 meshes in raw materials of the regenerated aluminum fire-resistant gunning material to be less than or equal to 200 meshes by a Raymond mill, uniformly mixing the particles with other raw materials with the particle size less than or equal to 200 meshes, and packaging the mixture in small bags or ton bags with plastic linings.
Example 1:
firstly, raw material selection is carried out, namely 57 parts of regenerated high-alumina powder, 10 parts of ferroalloy dust, 10 parts of magnesia carbon brick dust, 5 parts of leather sand powder, 10 parts of recovered slide plate powder, 2 parts of lithium bentonite, 1 part of carboxymethyl cellulose, 5 parts of high-temperature asphalt powder and 0.2 part of explosion-proof fiber.
After the raw materials are selected, the raw materials are stirred uniformly by a stirrer, and the raw materials are packaged by a small bag with a plastic lining and then can be used by special spraying equipment.
The regenerated aluminum refractory gunning material prepared by the technical scheme is a common product with excellent comprehensive performance through the selection of raw materials, the content of alumina in the detected product is more than 40%, the carbon content is more than 5%, the refractoriness is more than 1600 ℃, the normal-temperature breaking strength is more than 3.5Mpa, and the material is suitable for various tank liners for slag filling and pouring with small-sized lower temperature.
Example 2:
firstly, raw material selection is carried out, namely 55 parts of regenerated high-alumina powder, 10 parts of ferroalloy dust, 7 parts of magnesia carbon brick dust, 5 parts of leather sand powder, 15 parts of recovered slide plate powder, 2 parts of lithium bentonite, 1 part of carboxymethyl cellulose, 5 parts of high-temperature asphalt powder and 0.2 part of explosion-proof fiber.
After the raw materials are selected, the raw materials are stirred uniformly by a stirrer, and the raw materials are packaged by a small bag with a plastic lining and then can be used by special spraying equipment.
The regenerated aluminum refractory gunning material prepared by the technical scheme is an enhanced product with excellent comprehensive performance, the detected product has alumina content of more than 45%, carbon content of more than 5%, refractoriness of more than 1650 ℃ and normal-temperature breaking strength of more than 3.5Mpa, and is suitable for various tank liners for large-scale slag-holding and deslagging with higher temperature.
Example 3:
firstly, raw material selection is carried out, namely 55 parts of regenerated high-alumina powder, 7 parts of ferroalloy dust, 10 parts of magnesia carbon brick dust, 5 parts of leather sand powder, 15 parts of recovered slide plate powder, 2 parts of lithium bentonite, 1 part of carboxymethyl cellulose, 5 parts of high-temperature asphalt powder and 0.2 part of explosion-proof fiber.
After the raw materials are selected, the raw materials are stirred uniformly by a stirrer, and the raw materials are packaged by a small bag with a plastic lining and then can be used by special spraying equipment.
The regenerated aluminum refractory gunning material prepared by the technical scheme is an enhanced product with excellent comprehensive performance, the detected product has alumina content of more than 45%, carbon content of more than 8%, refractoriness of more than 1650 ℃ and normal-temperature breaking strength of more than 3.5Mpa, and is suitable for various tank liners with longer slag holding and pouring time and large-scale high temperature.
Example 4:
firstly, raw material selection is carried out, namely 50 parts of regenerated high-alumina powder, 10 parts of ferroalloy dust, 10 parts of magnesia carbon brick dust, 3 parts of leather sand powder, 5 parts of recovered slide plate powder, 2 parts of lithium bentonite, 0.5 part of carboxymethyl cellulose, 3 parts of high-temperature asphalt powder and 0.2 part of explosion-proof fiber.
After the raw materials are selected, the raw materials are stirred uniformly by a stirrer, and the raw materials are packaged by a small bag with a plastic lining and then can be used by special spraying equipment.
The regenerated aluminum refractory gunning material prepared by the technical scheme is a common product with excellent comprehensive performance through the selection of raw materials, the detected product has the aluminum oxide content of more than 35%, the carbon content of more than 3%, the refractoriness of more than 1550 ℃ and the normal-temperature breaking strength of more than 2.5Mpa, and is suitable for various tank liners for slag holding and pouring with small size, low temperature and short slag pouring time.
Example 5:
firstly, raw materials are selected and matched, and 60 parts of regenerated high-alumina powder, 15 parts of ferroalloy dust, 15 parts of magnesia carbon brick dust, 5 parts of leather sand powder, 10 parts of recovered slide plate powder, 3 parts of lithium bentonite, 1 part of carboxymethyl cellulose, 5 parts of high-temperature asphalt powder and 0.5 part of explosion-proof fiber are prepared.
After the raw materials are selected, the raw materials are stirred uniformly by a stirrer, and the raw materials are packaged by a small bag with a plastic lining and then can be used by special spraying equipment.
The regenerated aluminum refractory gunning material prepared by the technical scheme is a common product with excellent comprehensive performance through the selection of raw materials, the content of alumina in the detected product is more than 45%, the carbon content is more than 10%, the refractoriness is more than 1650 ℃, the normal-temperature breaking strength is more than 3.5Mpa, and the material is suitable for various tank liners for large-scale slag-holding and slag-pouring with high temperature and long slag-pouring time.
Claims (2)
1. The regenerated aluminum refractory gunning material is characterized by being prepared from the following raw materials in parts by weight: 50-60 parts of regenerated high-alumina powder, 10-15 parts of ferroalloy dust, 10-15 parts of magnesia carbon dust, 3-5 parts of 90-skin sand powder, 5-10 parts of recovered slide plate powder, 2-3 parts of lithium bentonite, 0.5-1 part of carboxymethyl cellulose, 3-5 parts of high-temperature asphalt powder and 0.2-0.5 part of additive; the regenerated high-alumina powder is powder which is recovered from the hot blast stove, picked by the recovered high-alumina balls and grinded into 200 meshes; the ferroalloy dust is low-grade silicon micropowder in the ferroalloy byproducts; the magnesia carbon dedusting ash is generated by a dedusting system when the magnesia carbon bricks are crushed after the steel ladle is used; the recovered slide plate powder is powder which is picked by a slide plate after being used for steel ladle and is ground into 200 meshes.
2. The reclaimed aluminum refractory gunning mix of claim 1 wherein: the additive adopts explosion-proof fiber.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211426829.9A CN115677362B (en) | 2022-11-15 | 2022-11-15 | Refractory gunning material for regenerated aluminum |
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| CN202211426829.9A CN115677362B (en) | 2022-11-15 | 2022-11-15 | Refractory gunning material for regenerated aluminum |
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| CN115677362B true CN115677362B (en) | 2023-08-01 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4113502A (en) * | 1977-02-18 | 1978-09-12 | Chicago Fire Brick Company | Aluminous refractory composition |
| JPH0365569A (en) * | 1989-08-03 | 1991-03-20 | Kurosaki Refract Co Ltd | Repairing material for hot gunning |
| JPH08188475A (en) * | 1995-01-09 | 1996-07-23 | Daido Steel Co Ltd | High-alumina refractory |
| KR20020049910A (en) * | 2000-12-20 | 2002-06-26 | 신현준 | Injection repair composition for blast furnace by using spent refractories |
| CN101524750A (en) * | 2009-03-27 | 2009-09-09 | 莱芜钢铁集团有限公司 | Preformed piece for plate blank tundish and preparation method thereof |
| DE102013001927A1 (en) * | 2013-02-04 | 2014-08-07 | Refratechnik Holding Gmbh | Geopolymer binder system for Feuerbetone, dry Feuetonetonversatz containing the binder system and the use of the offset |
| CN115340393A (en) * | 2022-10-05 | 2022-11-15 | 甘肃酒钢集团科力耐火材料股份有限公司 | Regenerated anhydrous fire-resistant repair material and preparation method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000239072A (en) * | 1999-02-19 | 2000-09-05 | Asahi Glass Co Ltd | Monolithic refractory material and waste melting furnace using the same |
| CN105436492B (en) * | 2015-12-26 | 2017-11-28 | 山东钢铁股份有限公司 | A kind of continuous casting production reworked material working lining and preparation method thereof |
| CN112695196A (en) * | 2019-10-22 | 2021-04-23 | 甘肃锦世化工有限责任公司 | Method for recycling dust of ferrochrome alloy to improve smelting efficiency of ferrochrome |
| CN115029549A (en) * | 2022-06-14 | 2022-09-09 | 广西科技大学 | Preparation method of carbon-containing silicon-manganese alloy fly ash pellets |
-
2022
- 2022-11-15 CN CN202211426829.9A patent/CN115677362B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4113502A (en) * | 1977-02-18 | 1978-09-12 | Chicago Fire Brick Company | Aluminous refractory composition |
| JPH0365569A (en) * | 1989-08-03 | 1991-03-20 | Kurosaki Refract Co Ltd | Repairing material for hot gunning |
| JPH08188475A (en) * | 1995-01-09 | 1996-07-23 | Daido Steel Co Ltd | High-alumina refractory |
| KR20020049910A (en) * | 2000-12-20 | 2002-06-26 | 신현준 | Injection repair composition for blast furnace by using spent refractories |
| CN101524750A (en) * | 2009-03-27 | 2009-09-09 | 莱芜钢铁集团有限公司 | Preformed piece for plate blank tundish and preparation method thereof |
| DE102013001927A1 (en) * | 2013-02-04 | 2014-08-07 | Refratechnik Holding Gmbh | Geopolymer binder system for Feuerbetone, dry Feuetonetonversatz containing the binder system and the use of the offset |
| CN115340393A (en) * | 2022-10-05 | 2022-11-15 | 甘肃酒钢集团科力耐火材料股份有限公司 | Regenerated anhydrous fire-resistant repair material and preparation method thereof |
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| CN115677362A (en) | 2023-02-03 |
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