CN111187081A - Preparation method of high-hardness neutral furnace lining material - Google Patents
Preparation method of high-hardness neutral furnace lining material Download PDFInfo
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- CN111187081A CN111187081A CN201811357031.7A CN201811357031A CN111187081A CN 111187081 A CN111187081 A CN 111187081A CN 201811357031 A CN201811357031 A CN 201811357031A CN 111187081 A CN111187081 A CN 111187081A
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- weight
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- furnace lining
- lining material
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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
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/44—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminates
- C04B35/443—Magnesium aluminate spinel
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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
- C04B2235/3409—Boron oxide, borates, boric acids, or oxide forming salts thereof, e.g. borax
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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
Abstract
The invention relates to a high-hardness neutral furnace lining material, and belongs to the technical field of furnace building equipment manufacturing. The preparation method comprises the following steps: mixing 50-80 parts by weight of an aluminum-rich magnesium aluminate spinel aggregate and 20-50 parts by weight of an aluminum-rich magnesium aluminate spinel fine powder into a mixture, adding 4-6 parts by weight of a paper pulp waste liquid into the mixture, uniformly mixing, adding 0.5-2 parts by weight of an additive, and stirring for 15-30 min to obtain the high-hardness neutral furnace lining material. The invention provides a high-hardness neutral furnace lining material, and the prepared furnace lining has the advantages of high corrosion resistance, high wear resistance, simple process, low production cost, non-toxic and harmless raw materials, environmental protection and no pollution.
Description
Technical Field
The invention relates to a high-hardness neutral furnace lining material, and belongs to the technical field of furnace building equipment manufacturing.
Background
At present, the bottom of the lining material of the medium frequency induction furnace in the casting industry is seriously corroded in the using process. The scheme adopted is that the bottom of the electric furnace is thickened in the furnace building process, however, the bottom of the electric furnace is lost firstly in the using process, the upper part of the electric furnace is not lost too much, therefore, after repeated repairs, the loss of the lower part of the electric induction furnace is still far higher than that of the upper part, the upper part of the electric furnace is not utilized and discarded, and the circuit lining material is not utilized to the maximum extent.
The furnace lining material for the traditional medium-frequency induction furnace for smelting carbon steel is mainly prepared by mixing quartz serving as a main raw material and 3-5 parts by weight of boric acid serving as a sintering agent. Although quartz has a high melting point (1713 ℃), quartz can generate crystal transformation at different temperatures, so that the erosion resistance of a furnace lining material is reduced, and the erosion of the bottom of the furnace lining is further aggravated.
Disclosure of Invention
The invention aims to provide a high-hardness neutral furnace lining material which is simple in preparation method, high in corrosion resistance and wear resistance, simple in technological process, low in production cost, nontoxic and harmless in adopted raw materials, environment-friendly and pollution-free.
The invention provides a preparation method of a high-hardness neutral furnace lining material, which comprises the steps of mixing 10-20 parts by weight of quartz particles with the particle size of 5-3 mm, 10-40 parts by weight of quartz particles with the particle size of 3-1 mm, 10-35 parts by weight of quartz particles with the particle size of 1-0.5 mm, 10-25 parts by weight of quartz fine powder with the particle size of 200 meshes and 4-20 parts by weight of alumina composite silicon carbide micro powder, mixing 50-80 parts by weight of aluminum-rich magnesium spinel aggregate and 20-50 parts by weight of aluminum-rich magnesium spinel fine powder into a mixture, adding 4-6 parts by weight of paper pulp waste liquid into the mixture, uniformly mixing, adding 0.5-2 parts by weight of additive, and stirring for 15-30 min to obtain the high-hardness neutral furnace lining material.
As a further improvement of the invention, the particle size of the SiO of quartz is 5-3 mm, 3-1 mm, 1-0.5 mm and 200 meshes2The content is more than or equal to 98.5 weight portions.
As a further improvement of the invention, the additive is one or a mixture of more than one of boric acid and boric anhydride.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the high-hardness neutral furnace lining prepared by taking quartz particles with different particle sizes, alumina composite silicon carbide particles, aluminum-rich magnesium aluminate spinel aggregate and aluminum-rich magnesium aluminate spinel fine powder as materials has excellent corrosion resistance and wear resistance, the lining is not easy to be lost by acid and alkali, the material adhesion is small, the stirring and mixing performance of the device can be improved, and the service life of the device can be prolonged;
2. the preparation process has short flow time, low operation cost, no environmental pollution of the used reagent, and environment friendship.
Detailed Description
Example 1:
the invention provides a preparation method of a high-hardness neutral furnace lining material, which comprises the steps of mixing 50 parts by weight of aluminum-rich magnesium aluminate spinel aggregate and 20 parts by weight of aluminum-rich magnesium aluminate spinel fine powder into a mixture, adding 4 parts by weight of paper pulp waste liquid into the mixture, adding 0.5 part by weight of an additive into the mixture, and stirring the mixture for 15min to obtain the high-hardness neutral furnace lining material, wherein 10 parts by weight of quartz particles with the particle size of 5mm, 10 parts by weight of quartz particles with the particle size of 3mm, 10 parts by weight of quartz particles with the particle size of 1mm, 10 parts by weight of quartz fine powder with the particle size of 200 meshes and 4 parts by weight of alumina composite silicon carbide micro powder.
As a further improvement of the present invention, the above-mentioned SiO particles of quartz having particle sizes of 5mm, 3mm, 1mm and 200 mesh are used2The content is more than or equal to 98.5 weight portions.
As a further improvement of the invention, the additive is one or a mixture of more than one of boric acid and boric anhydride.
Example 2:
the invention provides a preparation method of a high-hardness neutral furnace lining material, which comprises the steps of mixing 80 parts by weight of aluminum-rich magnesium spinel aggregate and 50 parts by weight of aluminum-rich magnesium aluminate spinel fine powder into a mixture, adding 6 parts by weight of paper pulp waste liquid into the mixture, adding 2 parts by weight of an additive into the mixture, and stirring the mixture for 30min to obtain the high-hardness neutral furnace lining material, wherein the 20 parts by weight of quartz particles with the particle size of 3mm, 40 parts by weight of quartz particles with the particle size of 1mm, 35 parts by weight of quartz particles with the particle size of 0.5mm, 25 parts by weight of quartz fine powder with the particle size of 200 meshes and 20 parts by weight of alumina composite silicon carbide micro powder.
As a further improvement of the present invention, the above-mentioned SiO particle size of quartz is 3mm, 1mm, 0.5mm, 200 mesh2The content is more than or equal to 98.5 weight portions.
As a further improvement of the invention, the additive is one or a mixture of more than one of boric acid and boric anhydride.
Example 3:
the invention provides a preparation method of a high-hardness neutral furnace lining material, which comprises the steps of mixing 60 parts by weight of aluminum-rich magnesium spinel aggregate and 35 parts by weight of aluminum-rich magnesium aluminate spinel fine powder into a mixture, adding 4-6 parts by weight of paper pulp waste liquid into the mixture, adding 1.5 parts by weight of an additive into the mixture, and stirring the mixture for 20 minutes to obtain the high-hardness neutral furnace lining material, wherein 15 parts by weight of quartz particles with the particle size of 4mm, 20 parts by weight of quartz particles with the particle size of 2mm, 25 parts by weight of quartz particles with the particle size of 0.8mm, 20 parts by weight of quartz fine powder with the particle size of 200 meshes and 15 parts by weight of alumina composite silicon carbide fine powder.
As a further improvement of the invention, the SiO particle size of the quartz is 4mm, 2mm, 0.8mm and 200 meshes2The content is more than or equal to 98.5 weight portions.
As a further improvement of the invention, the additive is one or a mixture of more than one of boric acid and boric anhydride.
Claims (3)
1. A preparation method of a high-hardness neutral furnace lining material is characterized by comprising the following steps: mixing 50-80 parts by weight of an aluminum-rich magnesium aluminate spinel aggregate and 20-50 parts by weight of an aluminum-rich magnesium aluminate spinel fine powder into a mixture, adding 4-6 parts by weight of a paper pulp waste liquid into the mixture, uniformly mixing, adding 0.5-2 parts by weight of an additive, and stirring for 15-30 min to obtain the high-hardness neutral furnace lining material.
2. The method for preparing the high-hardness neutral furnace lining material according to claim 1, wherein the method comprises the following steps: the SiO of quartz with particle size of 5-3 mm, 3-1 mm, 1-0.5 mm and 200 meshes2The content is more than or equal to 98.5 weight portions.
3. The method for preparing the high-hardness neutral furnace lining material according to claim 1 or 2, wherein the method comprises the following steps: the additive is one or more of boric acid and boric anhydride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811357031.7A CN111187081A (en) | 2018-11-15 | 2018-11-15 | Preparation method of high-hardness neutral furnace lining material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811357031.7A CN111187081A (en) | 2018-11-15 | 2018-11-15 | Preparation method of high-hardness neutral furnace lining material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111187081A true CN111187081A (en) | 2020-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811357031.7A Pending CN111187081A (en) | 2018-11-15 | 2018-11-15 | Preparation method of high-hardness neutral furnace lining material |
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| CN (1) | CN111187081A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114988897A (en) * | 2022-06-30 | 2022-09-02 | 包头钢铁（集团）有限责任公司 | Furnace lining material for medium-frequency vacuum induction furnace and preparation method and application thereof |
-
2018
- 2018-11-15 CN CN201811357031.7A patent/CN111187081A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114988897A (en) * | 2022-06-30 | 2022-09-02 | 包头钢铁（集团）有限责任公司 | Furnace lining material for medium-frequency vacuum induction furnace and preparation method and application thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200522 |
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| WD01 | Invention patent application deemed withdrawn after publication |