CN111187083A - Preparation method of neutral furnace lining material - Google Patents
Preparation method of neutral furnace lining material Download PDFInfo
- Publication number
- CN111187083A CN111187083A CN201811357172.9A CN201811357172A CN111187083A CN 111187083 A CN111187083 A CN 111187083A CN 201811357172 A CN201811357172 A CN 201811357172A CN 111187083 A CN111187083 A CN 111187083A
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- weight
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- particle size
- lining material
- furnace lining
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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
- C04B35/14—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 silica
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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
- C04B2235/3222—Aluminates other than alumino-silicates, e.g. spinel (MgAl2O4)
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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
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
- C04B2235/9669—Resistance against chemicals, e.g. against molten glass or molten salts
- C04B2235/9676—Resistance against chemicals, e.g. against molten glass or molten salts against molten metals such as steel or aluminium
Abstract
The invention relates to a neutral furnace lining material, and belongs to the technical field of furnace building equipment manufacturing. The preparation steps are as follows: the neutral furnace lining material is prepared by 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 silicon carbide micro powder, firstly mixing 50-80 parts by weight of aluminum-rich magnesium aluminate spinel aggregate and 20-50 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 of the mixture, uniformly mixing, then adding 0.5-2 parts by weight of an additive, and stirring for 15-30 min. The invention aims to provide a neutral furnace lining material which is simple in preparation method, high in corrosion resistance and wear resistance of the prepared furnace lining, simple in technological process, low in production cost, nontoxic and harmless in adopted raw materials, environment-friendly and pollution-free.
Description
Technical Field
The invention relates to a 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 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 neutral furnace lining material, which comprises the following 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 silicon carbide micro powder, mixing 50-80 parts by weight of aluminum-rich magnesium aluminate spinel aggregate and 20-50 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 of the mixture, uniformly mixing, adding 0.5-2 parts by weight of an additive, and stirring for 15-30 min to obtain the 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 neutral furnace lining prepared by taking quartz particles, silicon carbide particles, aluminum-rich magnesium aluminate spinel aggregate and aluminum-rich magnesium aluminate spinel fine powder with different particle sizes 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 neutral furnace lining material, which comprises the steps of mixing 10 parts by weight of quartz particles with the granularity of 5mm, 10 parts by weight of quartz particles with the granularity of 3mm, 10 parts by weight of quartz particles with the granularity of 1mm, 10 parts by weight of quartz fine powder with the granularity of 200 meshes and 4 parts by weight of silicon carbide micro powder, 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 of the mixture, uniformly mixing, adding 0.5 part by weight of additive, and stirring for 15min to obtain the neutral furnace lining material.
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 neutral furnace lining material, which comprises the steps of mixing 20 parts by weight of quartz particles with the granularity of 3mm, 40 parts by weight of quartz particles with the granularity of 1mm, 35 parts by weight of quartz particles with the granularity of 0.5mm, 25 parts by weight of quartz fine powder with the granularity of 200 meshes and 20 parts by weight of silicon carbide micro powder, mixing 80 parts by weight of aluminum-rich magnesium aluminate 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 of the mixture, uniformly mixing, adding 2 parts by weight of additive, and stirring for 30min to obtain the neutral furnace lining material.
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 neutral furnace lining material, which comprises the steps of mixing 60 parts by weight of aluminum-rich magnesium aluminate 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 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 silicon carbide micro 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 neutral furnace lining material is characterized by comprising the following steps: the neutral furnace lining material is prepared by 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 silicon carbide micro powder, firstly mixing 50-80 parts by weight of aluminum-rich magnesium aluminate spinel aggregate and 20-50 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 of the mixture, uniformly mixing, then adding 0.5-2 parts by weight of an additive, and stirring for 15-30 min.
2. The method for preparing a 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. A method for preparing a neutral lining material according to claim 1 or 2, wherein: the additive is one or more of boric acid and boric anhydride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811357172.9A CN111187083A (en) | 2018-11-15 | 2018-11-15 | Preparation method of neutral furnace lining material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811357172.9A CN111187083A (en) | 2018-11-15 | 2018-11-15 | Preparation method of neutral furnace lining material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111187083A true CN111187083A (en) | 2020-05-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811357172.9A Pending CN111187083A (en) | 2018-11-15 | 2018-11-15 | Preparation method of neutral furnace lining material |
Country Status (1)
| Country | Link |
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| CN (1) | CN111187083A (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 CN201811357172.9A patent/CN111187083A/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 | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200522 |