CN109516786A - A kind of intermediate frequency furnace protects clay, preparation and construction method with coil - Google Patents
A kind of intermediate frequency furnace protects clay, preparation and construction method with coil Download PDFInfo
- Publication number
- CN109516786A CN109516786A CN201811502810.1A CN201811502810A CN109516786A CN 109516786 A CN109516786 A CN 109516786A CN 201811502810 A CN201811502810 A CN 201811502810A CN 109516786 A CN109516786 A CN 109516786A
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- CN
- China
- Prior art keywords
- clay
- intermediate frequency
- frequency furnace
- coil
- parts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- C04B35/10—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 aluminium oxide
- C04B35/101—Refractories from grain sized mixtures
-
- 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
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3208—Calcium oxide or oxide-forming salts thereof, e.g. lime
-
- 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)
-
- 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
- C04B2235/327—Iron group oxides, their mixed metal oxides, or oxide-forming salts thereof
- C04B2235/3272—Iron oxides or oxide forming salts thereof, e.g. hematite, magnetite
-
- 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
Abstract
The present invention relates to a kind of intermediate frequency furnace coils to protect clay, preparation and construction method, and product is pale pink powder, and ingredient forms by weight ratio are as follows: 85~95 parts of fused white corundum, 1~5 part of iron oxide red, 2~10 parts of CA-71 cement.Fused white corundum granularmetric composition is in parts by weight: 1-10 parts of the particle of 1-3mm, 40~60 parts of the particle of 0-1 ㎜, 200 25~45 parts of mesh fine powders.The granularity of the iron oxide red is 325 mesh.The granularity of the CA-71 cement is 325 mesh.Clay chemical composition of the present invention are as follows: MgO 0.5%~1%；Fe2O31.6%~2.1%；SiO20.5%~1.5%；CaO 3.5%~5.6%；Al2O3>=90%.Clay intermediate frequency furnace of the present invention in use, fused white corundum (Al2O3) and iron oxide red (Fe2O3) hercynite is formed, hercynite has impermeabilisation, resistance to slag, the characteristic of good thermal conduction, improves insulating properties, refractoriness and heating conduction, extends clay service life, and high-temperature heat-conductive can make well intermediate frequency furnace save electricity.
Description
Technical field
The present invention relates to the intermediate frequency furnace coils that iron and steel industry and nonferrous metallurgy field use to protect clay.
Background technique
Intermediate frequency furnace is important branch in induction furnace, since it has the originals such as efficient, energy conservation, low pollution, easy to operate
Because steel-making, it is coloured in terms of be widely applied.Widely used intermediate frequency furnace coil protection both at home and abroad now
Material is mainly bauxite matter coil clay.For a long time due to intermediate frequency furnace coil position working environment coil protection materials
High temperature metal solution is contacted, and coil clay contacts coil working electricity consumption, bauxite matter coil clay traditional in recent years, because of it
It is not satisfactory to wear furnace resistance for insulating properties, thermal conductivity and molten steel when in use, have been unable to meet smelting demand.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of intermediate frequency furnace coils to protect clay, has quality stabilization can
It leans on, the features such as performance is good, long service life.
To achieve the above object, the present invention is implemented with the following technical solutions:
A kind of intermediate frequency furnace coil protection clay, product is pale pink powder, and ingredient forms by weight ratio are as follows: electric smelting
85~95 parts of white fused alumina, 1~5 part of iron oxide red, 2~10 parts of CA-71 cement.
Fused white corundum granularmetric composition is in parts by weight: 1-10 parts of the particle of 1-3mm, 40~60 parts of the particle of 0-1 ㎜,
200 25~45 parts of mesh fine powders.
The granularity of the iron oxide red is 325 mesh.
The granularity of the CA-71 cement is 325 mesh.
Intermediate frequency furnace protects clay chemical composition with coil are as follows: MgO 0.5%~1%；Fe2O31.6%~2.1%；
SiO20.5%~1.5%；CaO 3.5%~5.6%；Al2O3>=90%.
A kind of intermediate frequency furnace protects the preparation method of clay with coil, comprising the following steps:
1) raw material fused white corundum removes magnetic impurity first through magnetic separation system；
2) fused white corundum is processed into the particle of granularity 1-3mm, 0-1 ㎜, and extracts the part 0-1 in fused white corundum out
㎜ wears into 200 mesh fine powders；
3) iron oxide red processing is finely ground into 325 targeted fine powder of granularity；
4) each raw material is uniformly mixed according to the ratio；
5) powder obtained by step 4) is removed magnetic impurity through magnetic separation system；
6) finished product packs.
A kind of intermediate frequency furnace protects the construction method of clay with coil, comprising the following steps:
1) protection clay is added water in the ratio of 4~6:1 and stirs into mud；
2) mud slurry uniform is applied to intermediate frequency furnace coil inside, coating layer thickness 10-15mm.
Compared with prior art, the beneficial effects of the present invention are:
1. clay intermediate frequency furnace of the present invention is in use, fused white corundum (Al2O3) and iron oxide red (Fe2O3) formed
Hercynite, hercynite have impermeabilisation, resistance to slag, the characteristic of good thermal conduction, improve insulating properties, refractoriness and thermally conductive
Performance, extends clay service life, and high-temperature heat-conductive can make well intermediate frequency furnace save electricity.
2. a kind of intermediate frequency furnace protects clay nonmagnetic with coil, significantly improves molten steel and wear furnace resistance.
3. protection clay appearance is pale pink, facilitates identification, facilitate construction.
4. effectively the coil due to caused by coil aging leak is prevented to strike sparks, coil position is preferably protected, it can also be effective
Prevent the leakage of molten metal.Improve intermediate frequency furnace long service life.
Specific embodiment
Below with reference to embodiment, the present invention is further described:
The present invention will be described in detail for following embodiment.These embodiments be only to preferred embodiment of the invention into
Row description, does not limit the scope of the present invention.
Embodiment
Intermediate frequency furnace protects clay ingredient to see the table below 1 with coil；
Table 1: intermediate frequency furnace protects clay composition proportion (parts by weight) with coil
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 | |
| Fused white corundum | 85 | 90 | 95 | 92 | 88 | 89 |
| 325 mesh of iron oxide red | 2 | 3 | 5 | 4 | 3.5 | 2.5 |
| 325 mesh of CA-71 cement | 5 | 2 | 8 | 10 | 6 | 4 |
Intermediate frequency furnace protects fused white corundum granularmetric composition in clay ingredient to see the table below 2 with coil；
Table 2: intermediate frequency furnace protects fused white corundum granularmetric composition (parts by weight) in clay with coil
Intermediate frequency furnace protects the preparation method of clay with coil, comprising the following steps:
1) raw material fused white corundum removes magnetic impurity first through magnetic separation system；
2) fused white corundum is processed into the particle of granularity 1-3mm, 0-1 ㎜, and extracts the part 0-1 in fused white corundum out
㎜ wears into 200 mesh fine powders；
3) iron oxide red processing is finely ground into 325 targeted fine powder of granularity；
4) each raw material is uniformly mixed according to the ratio；
5) powder obtained by step 4) is removed magnetic impurity through magnetic separation system；
6) finished product packs.
Chemical component detection is shown in Table 3 in clay finished product；
Table 3: chemical component (%) in clay finished product
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 | |
| MgO | 0.85% | 0.92% | 0.61% | 0.89% | 0.75% | 0.95% |
| Fe2O3 | 1.85% | 1.72% | 1.95% | 2.0% | 2.05% | 1.68% |
| SiO2 | 1.35% | 1.4% | 1.21% | 0.65% | 0.83% | 0.92% |
| CaO | 3.85% | 3.94% | 4.5% | 5.45% | 5.15% | 4.55% |
| Al2O3 | 91.5% | 92% | 90.5% | 90.3% | 90.5% | 91.6% |
| Remaining impurity | Remaining impurity | Remaining impurity | Remaining impurity | Remaining impurity | Remaining impurity |
A kind of intermediate frequency furnace protects the construction method of clay with coil, comprising the following steps:
1) protection clay is added water in the ratio of 4-6:1 and stirs into mud；
2) mud slurry uniform is applied to intermediate frequency furnace coil inside, coating layer thickness 10-15mm.
Described above is only basic principle of the invention, is not intended to limit the invention in any way, all right according to the present invention
It carries out equivalent variations and modification, within the scope of the art of this patent protection scheme.
Claims (7)
1. a kind of intermediate frequency furnace protects clay with coil, which is characterized in that product is pale pink powder, ingredient group by weight ratio
Become: 85~95 parts of fused white corundum, 1~5 part of iron oxide red, 2~10 parts of CA-71 cement.
2. a kind of intermediate frequency furnace according to claim 1 protects clay with coil, which is characterized in that fused white corundum granularity group
At in parts by weight: 1-10 parts of the particle of 1-3mm, 40~60 parts of the particle of 0-1 ㎜, 200 25~45 parts of mesh fine powders.
3. a kind of intermediate frequency furnace according to claim 1 protects clay with coil, which is characterized in that the iron oxide red
Granularity is 325 mesh.
4. a kind of intermediate frequency furnace according to claim 1 protects clay with coil, which is characterized in that the CA-71 cement
Granularity be 325 mesh.
5. a kind of intermediate frequency furnace according to claim 1 protects clay with coil, which is characterized in that intermediate frequency furnace is protected with coil
Clay chemical composition are as follows: MgO 0.5%~1%；Fe2O31.6%~2.1%；SiO20.5%~1.5%；CaO
3.5%~5.6%；Al2O3>=90%.
6. a kind of intermediate frequency furnace according to claim 1 with coil protect clay preparation method, which is characterized in that including with
Lower step:
1) raw material fused white corundum removes magnetic impurity first through magnetic separation system；
2) fused white corundum is processed into the particle of granularity 1-3mm, 0-1 ㎜, and extracts the mill of the part 0-1 ㎜ in fused white corundum out
At 200 mesh fine powders；
3) iron oxide red processing is finely ground into 325 targeted fine powder of granularity；
4) each raw material is uniformly mixed according to the ratio；
5) powder obtained by step 4) is removed magnetic impurity through magnetic separation system；
6) finished product packs.
7. a kind of intermediate frequency furnace according to claim 1 with coil protect clay construction method, which is characterized in that including with
Lower step:
1) protection clay is added water in the ratio of 4~6:1 and stirs into mud；
2) mud slurry uniform is applied to intermediate frequency furnace coil inside, coating layer thickness 10-15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811502810.1A CN109516786A (en) | 2018-12-10 | 2018-12-10 | A kind of intermediate frequency furnace protects clay, preparation and construction method with coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811502810.1A CN109516786A (en) | 2018-12-10 | 2018-12-10 | A kind of intermediate frequency furnace protects clay, preparation and construction method with coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109516786A true CN109516786A (en) | 2019-03-26 |
Family
ID=65795152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811502810.1A Pending CN109516786A (en) | 2018-12-10 | 2018-12-10 | A kind of intermediate frequency furnace protects clay, preparation and construction method with coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109516786A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101162636A (en) * | 2007-08-27 | 2008-04-16 | 浙江工业大学 | Induction coil protection layer for intermediate frequency stove |
| CN104030704A (en) * | 2014-05-28 | 2014-09-10 | 长兴北辰耐火阻燃材料有限公司 | Cement for intermediate frequency furnace lining |
| CN104030703A (en) * | 2014-05-28 | 2014-09-10 | 长兴北辰耐火阻燃材料有限公司 | Preparation method of cement gum for intermediate frequency furnace |
| CN106495721A (en) * | 2016-11-25 | 2017-03-15 | 四川合电炉科技有限公司 | A kind of induction coil clay and preparation method thereof |
-
2018
- 2018-12-10 CN CN201811502810.1A patent/CN109516786A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101162636A (en) * | 2007-08-27 | 2008-04-16 | 浙江工业大学 | Induction coil protection layer for intermediate frequency stove |
| CN104030704A (en) * | 2014-05-28 | 2014-09-10 | 长兴北辰耐火阻燃材料有限公司 | Cement for intermediate frequency furnace lining |
| CN104030703A (en) * | 2014-05-28 | 2014-09-10 | 长兴北辰耐火阻燃材料有限公司 | Preparation method of cement gum for intermediate frequency furnace |
| CN106495721A (en) * | 2016-11-25 | 2017-03-15 | 四川合电炉科技有限公司 | A kind of induction coil clay and preparation method thereof |
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Application publication date: 20190326 |