CN112479726A - Castable for electric furnace cover and preparation method thereof - Google Patents
Castable for electric furnace cover and preparation method thereof Download PDFInfo
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- CN112479726A CN112479726A CN202011452304.3A CN202011452304A CN112479726A CN 112479726 A CN112479726 A CN 112479726A CN 202011452304 A CN202011452304 A CN 202011452304A CN 112479726 A CN112479726 A CN 112479726A
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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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
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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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/62204—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products using waste materials or refuse
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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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
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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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3418—Silicon oxide, silicic acids, or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
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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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/38—Non-oxide ceramic constituents or additives
- C04B2235/3817—Carbides
- C04B2235/3826—Silicon carbides
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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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/52—Constituents or additives characterised by their shapes
- C04B2235/5208—Fibers
- C04B2235/5216—Inorganic
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Abstract
The invention belongs to the technical field of kiln casting materials, and discloses a casting material for a furnace cover of an electric furnace, which comprises the following components: waste slide plates, flint clay, silicon micropowder, aluminum micropowder, silicon carbide and stainless steel fibers; the waste smooth plate, the flint clay, the silicon micropowder, the aluminum micropowder, the silicon carbide and the stainless steel fiber are sequentially as follows in percentage by weight: 50-70% of waste smooth plate, 20-30% of flint clay, 2-5% of silicon micropowder, 5-8% of aluminum micropowder, 2-5% of silicon carbide and 1-2% of stainless steel fiber. The invention also discloses a preparation method of the castable for the furnace cover of the electric furnace. The waste sliding plate is used as a main raw material, and the electric furnace cover made of the pouring material not only reduces the cost compared with the existing electric furnace cover, but also has good performances in the aspects of compressive strength, breaking strength, refractoriness and the like, and plays a good role in environmental protection; the addition of the flint clay ensures that the manufactured electric furnace cover has good thermal shock stability under the conditions of rapid cooling and rapid heating.
Description
Technical Field
The invention belongs to the technical field of kiln casting materials, and particularly relates to a casting material for a furnace cover of an electric furnace and a preparation method thereof.
Background
The electric furnace is an industrial furnace which takes smelting scrap iron and steel as main raw materials, takes electric energy as a heat source, utilizes electric arcs generated between electrodes and furnace burden to heat and melt the furnace burden at high temperature, and the environment in the furnace is severe. The electric furnace consists of a furnace body, a tilting mechanism, electrical equipment, an electrode lifter and a cooling system; the furnace body comprises a furnace cover, a furnace wall and a furnace bottom, wherein the furnace cover is of a spherical structure with an electrode hole and a smoke exhaust hole, the outer ring part is a main furnace cover, the middle part is a small furnace cover, and the furnace cover can move when materials are filled. When the electric furnace is smelted, the furnace cover is in a severe working environment, and the furnace cover is rapidly cooled and heated due to electric arc heating, steel tapping and furnace cover moving processes, so that a working surface is peeled off under the action of thermal stress, and the service life of the furnace cover is shortened.
The furnace lid castable in the traditional sense adopts high-alumina as a raw material, has higher price and also has the problem of peeling caused by rapid cooling and rapid heating.
Disclosure of Invention
The invention aims to solve the problem of high cost of the existing electric furnace cover and provides a castable for the electric furnace cover and a preparation method thereof.
The technical scheme adopted by the invention is as follows:
on the one hand, the castable for the furnace cover of the electric furnace comprises the following components: waste slide plates, flint clay, silicon micropowder, aluminum micropowder, silicon carbide and stainless steel fibers;
the waste smooth plate, the flint clay, the silicon micropowder, the aluminum micropowder, the silicon carbide and the stainless steel fiber are sequentially as follows in percentage by weight: 50-70% of waste smooth plate, 20-30% of flint clay, 2-5% of silicon micropowder, 5-8% of aluminum micropowder, 2-5% of silicon carbide and 1-2% of stainless steel fiber.
In an optional technical scheme, the waste sliding plate material comprises 60% of flint clay, 27% of silicon micropowder, 5% of aluminum micropowder, 4% of silicon carbide and 1% of stainless steel fiber.
In an optional technical scheme, the waste sliding plate material comprises 60% of flint clay, 25% of silicon micropowder, 6% of aluminum micropowder, 5% of silicon carbide and 1% of stainless steel fiber.
In an optional technical scheme, the waste sliding plate material comprises 65% of flint clay, 23% of silicon micropowder, 5% of aluminum micropowder, 4% of silicon carbide and 1% of stainless steel fiber.
In an optional technical scheme, the particle size fraction of the waste slide plate materials comprises 1 mm-3 mm, 3 mm-5 mm and 5 mm-8 mm, wherein the weight percentage of the waste slide plate materials with the particle size fraction of 1 mm-3 mm is 10% -20%, the weight percentage of the waste slide plate materials with the particle size fraction of 3 mm-5 mm is 20% -25%, and the weight percentage of the waste slide plate materials with the particle size fraction of 5 mm-8 mm is 20% -25%.
In an optional technical scheme, the weight percentage of the waste slide plate material with the particle size fraction of 1 mm-3 mm is 20%, the weight percentage of the waste slide plate material with the particle size fraction of 3 mm-5 mm is 20%, and the weight percentage of the waste slide plate material with the particle size fraction of 5 mm-8 mm is 20%.
In an optional technical scheme, the chemical components of the waste slide plate material comprise Al2O3≥65％、Te2O3Not more than 0.5 percent and SiO2Less than or equal to 1 percent; the chemical composition of the flint clay comprises Al2O3More than or equal to 45 percent; the chemical composition of the silicon micropowder comprises SiO2More than or equal to 94 percent; the chemical composition of the aluminum micro powder comprises Al2O3More than or equal to 99 percent; the chemical composition of the silicon carbide comprises SiC which is more than or equal to 94 percent.
In another aspect, a preparation method of the castable for the furnace cover of the electric furnace is also provided, and the preparation method comprises the following steps:
sorting raw materials: sorting the waste slide plate material, removing the iron-containing part and the part eroded by molten steel, and processing into waste slide plate materials with three particle size grades of 1-3 mm, 3-5 mm and 5-8 mm;
preparing materials: respectively carrying out bearing and material preparation on the waste slide plate material, the flint clay, the silicon micropowder, the aluminum micropowder, the silicon carbide and the stainless steel fiber according to weight percentage;
stirring: putting the prepared components into a stirrer for stirring;
stirring on site: transporting the stirred materials to a use site, and adding a proper amount of water for stirring;
vibration molding: injecting the stirred material into a furnace cover die, and performing vibration molding;
baking: and (4) placing the formed furnace cover into a baking furnace for baking, and using the furnace cover after baking is finished.
In an optional technical scheme, packaging: and packaging the uniformly stirred materials.
In the optional technical scheme, when the raw materials are sorted, iron-containing substances mixed in the waste slide plate materials are removed through magnetic separation.
The invention has the beneficial effects that:
the pouring material for the electric furnace cover disclosed by the invention adopts the waste sliding plate as a main raw material, and is matched with the flint clay, the silicon micropowder, the aluminum micropowder, the silicon carbide and the stainless steel fiber as auxiliary materials, so that the cost of the electric furnace cover manufactured by the pouring material is reduced compared with that of the existing electric furnace cover, the electric furnace cover has good performances in compressive strength, flexural strength, refractoriness and the like, and good environmental protection benefits are achieved; by dividing the waste sliding plate material into three particle size fractions, the manufactured electric furnace cover has better compactness and further improved compression strength and rupture strength; moreover, the addition of the flint clay ensures that the manufactured electric furnace cover has good thermal shock stability under the conditions of rapid cooling and rapid heating, and has good slag resistance effect.
Compared with the existing pouring material for the furnace cover of the electric furnace, which takes high-alumina bauxite as the raw material, the invention also provides a novel formula concept of the pouring material for the furnace cover of the electric furnace, so that the cost can be saved, the effects of environmental protection and resource reutilization can be achieved, the requirements of the existing furnace cover on the aspects of strength and the like can be met, meanwhile, the thermal shock stability under the conditions of rapid cooling and rapid heating is good, the slag resistance effect is good, and the market popularization prospect is good.
The preparation method of the electric furnace cover provided by the invention has no specific requirements on equipment and environment, is easy to prepare and reduces the preparation cost.
Detailed Description
The present invention is further illustrated below with reference to specific examples.
Example 1:
s1 sorting the raw material, and separating the recovered and main chemical components into Al2O3≥65％，Te2O3≤0.5％，SiO2Sorting the waste sliding plate materials with the particle size of less than or equal to 1, removing the iron-containing part during sorting, and processing the waste sliding plate materials into three particle size fractions of 1 mm-3 mm, 3 mm-5 mm and 5 mm-8 mm, wherein the weight percentage of the waste sliding plate materials with the particle size fraction of 1 mm-3 mm is 15%, and the waste sliding plate materials with the particle size fraction of 3 mm-5 mmThe weight percentage of the waste slide plate material is 20 percent, and the weight percentage of the waste slide plate material with the particle size fraction of 5 mm-8 mm is 25 percent; then the processed waste sliding plate materials with three particle sizes are subjected to a magnetic separation procedure to remove iron-containing impurities contained in the waste sliding plate materials;
s2, preparing 60% of waste sliding plate material, 27% of flint clay, 3% of silicon micropowder, 5% of aluminum micropowder, 4% of silicon carbide and 1% of stainless steel fiber according to the weight ratio;
s3, stirring, namely, putting the prepared components into a stirrer for stirring;
and S4, packaging the uniformly stirred materials.
S5, stirring on site, transporting the packaged materials to a use site, and adding a proper amount of water for stirring;
s6, vibration molding, namely injecting the stirred material into a furnace cover mold, and performing vibration molding;
s7, baking, namely putting the formed furnace cover into a baking furnace for baking until the baking is finished; wherein the baking temperature is not more than 800 degrees, and the baking time is three days.
The casting material prepared from the waste smooth plate material, the flint clay, the silicon micropowder, the aluminum micropowder, the silicon carbide and the stainless steel fiber in the weight ratio by the preparation method and the electric furnace cover prepared from the casting material have the use requirements on the total performance, are superior to the existing casting material prepared from high-alumina bauxite and electric furnace cover, and have the use temperature of over 1550 ℃ and the use number of over 200 furnaces which are lower than the price of similar products in the use process of a tundish.
The product performance is as follows: bulk density at 110 ℃ of more than 2.6g/cm3The compression strength of the dried material at 110 ℃ is more than 40Mpa, and the compression strength of the dried material after heat preservation for 3 hours at 1500 ℃ is more than 80 Mpa; the bending strength of the product after being dried at 110 ℃ is more than 6Mpa, the bending strength of the product after being insulated for 3 hours at 1500 ℃ is more than 8Mpa, and the fire resistance is more than 1790 ℃.
Meanwhile, the addition of the flint clay ensures that the manufactured electric furnace cover has good thermal shock stability under the conditions of rapid cooling and rapid heating, and has good slag resistance effect.
Example 2:
s1 sorting the raw material, and separating the recovered and main chemical components into Al2O3≥65％，Te2O3≤0.5％，SiO2Sorting the waste sliding plate materials with the particle size of less than or equal to 1, removing iron-containing parts during sorting, and processing the waste sliding plate materials into three particle size fractions of 1 mm-3 mm, 3 mm-5 mm and 5 mm-8 mm, wherein the weight percentage of the waste sliding plate materials with the particle size fraction of 1 mm-3 mm is 20%, the weight percentage of the waste sliding plate materials with the particle size fraction of 3 mm-5 mm is 20%, and the weight percentage of the waste sliding plate materials with the particle size fraction of 5 mm-8 mm is 20%; then the processed waste sliding plate materials with three particle sizes are subjected to a magnetic separation procedure to remove iron-containing impurities contained in the waste sliding plate materials;
s2, preparing 60% of waste sliding plate material, 25% of flint clay, 3% of silicon micropowder, 6% of aluminum micropowder, 5% of silicon carbide and 1% of stainless steel fiber according to the weight ratio;
s3, stirring, namely, putting the prepared components into a stirrer for stirring;
and S4, packaging the uniformly stirred materials.
S5, stirring on site, transporting the packaged materials to a use site, and adding a proper amount of water for stirring;
s6, vibration molding, namely injecting the stirred material into a furnace cover mold, and performing vibration molding;
s7, baking, namely putting the formed furnace cover into a baking furnace for baking until the baking is finished; wherein the baking temperature is not more than 800 degrees, and the baking time is three days.
The casting material prepared from the waste smooth plate material, the flint clay, the silicon micropowder, the aluminum micropowder, the silicon carbide and the stainless steel fiber in the weight ratio by the preparation method and the electric furnace cover prepared from the casting material have the use requirements on the total performance, and are superior to the existing casting material prepared from high-alumina bauxite and electric furnace cover, the use temperature of the product can reach more than 1550 ℃, the number of the used furnaces can reach more than 260, and the price is 20 percent lower than that of the similar product in the use process of the tundish.
The product performance is as follows: bulk density at 110 ℃ of more than 2.7g/cm3，110The drying compressive strength is more than 45Mpa, and the compressive strength is more than 88Mpa after the temperature is preserved for 3 hours at 1500 ℃; the bending strength of the product after being dried at 110 ℃ is more than 5.5Mpa, the bending strength of the product after being insulated for 3 hours at 1500 ℃ is more than 10Mpa, and the fire resistance is more than 1790 ℃.
Meanwhile, the addition of the flint clay ensures that the manufactured electric furnace cover has good thermal shock stability under the conditions of rapid cooling and rapid heating, and has good slag resistance effect.
Example 3:
s1 sorting the raw material, and separating the recovered and main chemical components into Al2O3≥65％，Te2O3≤0.5％，SiO2Sorting the waste sliding plate materials with the particle size of less than or equal to 1, removing iron-containing parts during sorting, and processing the waste sliding plate materials into three particle size fractions of 1 mm-3 mm, 3 mm-5 mm and 5 mm-8 mm, wherein the weight percentage of the waste sliding plate materials with the particle size fraction of 1 mm-3 mm is 18%, the weight percentage of the waste sliding plate materials with the particle size fraction of 3 mm-5 mm is 22%, and the weight percentage of the waste sliding plate materials with the particle size fraction of 5 mm-8 mm is 25%; then the processed waste sliding plate materials with three particle sizes are subjected to a magnetic separation procedure to remove iron-containing impurities contained in the waste sliding plate materials;
s2, preparing 60% of waste sliding plate material, 23% of flint clay, 2% of silicon micropowder, 5% of aluminum micropowder, 4% of silicon carbide and 1% of stainless steel fiber according to the weight ratio;
s3, stirring, namely, putting the prepared components into a stirrer for stirring;
and S4, packaging the uniformly stirred materials.
S5, stirring on site, transporting the packaged materials to a use site, and adding a proper amount of water for stirring;
s6, vibration molding, namely injecting the stirred material into a furnace cover mold, and performing vibration molding;
and S7, baking, namely putting the formed furnace cover into a baking furnace for baking until the baking is finished. Wherein the baking temperature is not more than 800 degrees, and the baking time is three days.
The casting material prepared from the waste smooth plate material, the flint clay, the silicon micropowder, the aluminum micropowder, the silicon carbide and the stainless steel fiber in the weight ratio by the preparation method and the electric furnace cover prepared from the casting material have the use requirements on the total performance, and are superior to the existing casting material prepared from high-alumina bauxite and electric furnace cover, the use temperature of the product can reach more than 1550 ℃, the number of the used furnaces can reach more than 300, and the price is 20 percent lower than that of the similar product in the use process of the tundish.
The product performance is as follows: the bulk density at 110 ℃ is more than 2.65g/cm3The compression strength of the dried material at 110 ℃ is more than 44Mpa, and the compression strength of the dried material after heat preservation for 3 hours at 1500 ℃ is more than 90 Mpa; the bending strength of the product after being dried at 110 ℃ is more than 7Mpa, the bending strength of the product after being insulated for 3 hours at 1500 ℃ is more than 9Mpa, and the fire resistance is more than 1790 ℃.
Meanwhile, the addition of the flint clay ensures that the manufactured electric furnace cover has good thermal shock stability under the conditions of rapid cooling and rapid heating, and has good slag resistance effect.
The present invention is not limited to the above-described alternative embodiments, and various other forms of products can be obtained by anyone in light of the present invention. The above-described embodiments should not be construed as limiting the scope of the invention, which is defined in the claims.
Claims (10)
1. The castable for the furnace cover of the electric furnace is characterized in that: comprises the following components: waste slide plates, flint clay, silicon micropowder, aluminum micropowder, silicon carbide and stainless steel fibers;
the waste smooth plate, the flint clay, the silicon micropowder, the aluminum micropowder, the silicon carbide and the stainless steel fiber are sequentially as follows in percentage by weight: 50-70% of waste smooth plate, 20-30% of flint clay, 2-5% of silicon micropowder, 5-8% of aluminum micropowder, 2-5% of silicon carbide and 1-2% of stainless steel fiber.
2. The castable for the furnace cover of the electric furnace according to claim 1, wherein: 60% of waste sliding plate material, 27% of flint clay, 3% of silicon micropowder, 5% of aluminum micropowder, 4% of silicon carbide and 1% of stainless steel fiber.
3. The castable for the furnace cover of the electric furnace according to claim 1, wherein: 60% of waste sliding plate material, 25% of flint clay, 3% of silicon micropowder, 6% of aluminum micropowder, 5% of silicon carbide and 1% of stainless steel fiber.
4. The castable for the furnace cover of the electric furnace according to claim 1, wherein: 65% of waste sliding plate material, 23% of flint clay, 2% of silicon micropowder, 5% of aluminum micropowder, 4% of silicon carbide and 1% of stainless steel fiber.
5. The castable for the furnace cover of the electric furnace according to claim 1, wherein: the particle size fraction of the waste slide plate materials comprises 1-3 mm, 3-5 mm and 5-8 mm, wherein the weight percentage of the waste slide plate materials with the particle size fraction of 1-3 mm is 10-20%, the weight percentage of the waste slide plate materials with the particle size fraction of 3-5 mm is 20-25%, and the weight percentage of the waste slide plate materials with the particle size fraction of 5-8 mm is 20-25%.
6. The castable for the furnace cover of the electric furnace according to claim 5, wherein: the weight percentage of the waste slide plate material with the grain size of 1 mm-3 mm is 20%, the weight percentage of the waste slide plate material with the grain size of 3 mm-5 mm is 20%, and the weight percentage of the waste slide plate material with the grain size of 5 mm-8 mm is 20%.
7. The castable for the furnace roof of the electric furnace according to any one of claims 1 to 6, wherein: the chemical composition of the waste slide plate material comprises Al2O3≥65％、Te2O3Not more than 0.5 percent and SiO2Less than or equal to 1 percent; the chemical composition of the flint clay comprises Al2O3More than or equal to 45 percent; the chemical composition of the silicon micropowder comprises SiO2More than or equal to 94 percent; the chemical composition of the aluminum micro powder comprises Al2O3More than or equal to 99 percent; the chemical composition of the silicon carbide comprises SiC which is more than or equal to 94 percent.
8. A method for preparing a castable for a furnace roof according to any one of claims 1 to 7, characterized in that: the preparation method comprises the following steps:
sorting raw materials: sorting the waste slide plate material, removing the iron-containing part and the part eroded by molten steel, and processing into waste slide plate materials with three particle size grades of 1-3 mm, 3-5 mm and 5-8 mm;
preparing materials: respectively carrying out bearing and material preparation on the waste slide plate material, the flint clay, the silicon micropowder, the aluminum micropowder, the silicon carbide and the stainless steel fiber according to weight percentage;
stirring: putting the prepared components into a stirrer for stirring;
stirring on site: transporting the stirred materials to a use site, and adding a proper amount of water for stirring;
vibration molding: injecting the stirred material into a furnace cover die, and performing vibration molding;
baking: and (4) placing the formed furnace cover into a baking furnace for baking, and using the furnace cover after baking is finished.
9. The preparation method of the castable for the furnace cover of the electric furnace as claimed in claim 8, wherein: between the stirring step and the field stirring step, the method also comprises the following steps:
packaging: and packaging the uniformly stirred materials.
10. The preparation method of the castable for the furnace cover of the electric furnace as claimed in claim 8, wherein: when the raw materials are sorted, removing iron-containing substances mixed in the waste slide plate material through magnetic separation.
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102718517A (en) * | 2012-07-18 | 2012-10-10 | 山国强 | Wear-resistant thermal shock-resistant flint clay brick and manufacturing method |
| CN102757249A (en) * | 2012-08-01 | 2012-10-31 | 山国强 | Refractory castable for molten iron tank |
| CN103693977A (en) * | 2013-12-12 | 2014-04-02 | 东海县盛昌石英材料有限公司 | Regenerated pouring material used for swinging runner and prepared from waste slide plates and preparation method of regenerated pouring material |
| CN104311048A (en) * | 2014-10-07 | 2015-01-28 | 宁夏天纵泓光余热发电技术有限公司 | High-strength alkali-resisting refractory castable |
| CN108033799A (en) * | 2017-12-14 | 2018-05-15 | 钢城集团凉山瑞海实业有限公司 | Half cylinder of steel tank mouth castable |
| CN108516850A (en) * | 2018-06-06 | 2018-09-11 | 新疆中冶实久工程材料有限公司 | A kind of filling fireproof material for blast furnace iron outlet |
| CN109516818A (en) * | 2018-12-03 | 2019-03-26 | 攀枝花钢城集团有限公司 | Hot-metal bottle bottom castable and preparation method thereof |
| CN110526722A (en) * | 2019-09-02 | 2019-12-03 | 马鞍山利尔开元新材料有限公司 | A kind of moulding by casting high life corundum mullite rock collector nozzle of ladle brick and preparation method thereof |
| CN112592193A (en) * | 2021-03-02 | 2021-04-02 | 北京利尔高温材料股份有限公司 | Ladle cover castable and preparation method thereof |
-
2020
- 2020-12-09 CN CN202011452304.3A patent/CN112479726A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102718517A (en) * | 2012-07-18 | 2012-10-10 | 山国强 | Wear-resistant thermal shock-resistant flint clay brick and manufacturing method |
| CN102757249A (en) * | 2012-08-01 | 2012-10-31 | 山国强 | Refractory castable for molten iron tank |
| CN103693977A (en) * | 2013-12-12 | 2014-04-02 | 东海县盛昌石英材料有限公司 | Regenerated pouring material used for swinging runner and prepared from waste slide plates and preparation method of regenerated pouring material |
| CN104311048A (en) * | 2014-10-07 | 2015-01-28 | 宁夏天纵泓光余热发电技术有限公司 | High-strength alkali-resisting refractory castable |
| CN108033799A (en) * | 2017-12-14 | 2018-05-15 | 钢城集团凉山瑞海实业有限公司 | Half cylinder of steel tank mouth castable |
| CN108516850A (en) * | 2018-06-06 | 2018-09-11 | 新疆中冶实久工程材料有限公司 | A kind of filling fireproof material for blast furnace iron outlet |
| CN109516818A (en) * | 2018-12-03 | 2019-03-26 | 攀枝花钢城集团有限公司 | Hot-metal bottle bottom castable and preparation method thereof |
| CN110526722A (en) * | 2019-09-02 | 2019-12-03 | 马鞍山利尔开元新材料有限公司 | A kind of moulding by casting high life corundum mullite rock collector nozzle of ladle brick and preparation method thereof |
| CN112592193A (en) * | 2021-03-02 | 2021-04-02 | 北京利尔高温材料股份有限公司 | Ladle cover castable and preparation method thereof |
Non-Patent Citations (3)
| Title |
|---|
| 张朝晖等: "《冶金环保与资源综合利用》", 31 January 2016, 冶金工业出版社 * |
| 王洛等: ""废弃高铝砖制备钢包永久衬浇注料的研究"", 《第十六届全国耐火材料青年学术报告会论文集》 * |
| 王诚训等: "《耐火浇注料及其技术发展》", 30 April 2015, 冶金工业出版社 * |
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