CN105884383A - Electrode paste and application thereof in production of brown fused alumina - Google Patents
Electrode paste and application thereof in production of brown fused alumina Download PDFInfo
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- CN105884383A CN105884383A CN201610226256.3A CN201610226256A CN105884383A CN 105884383 A CN105884383 A CN 105884383A CN 201610226256 A CN201610226256 A CN 201610226256A CN 105884383 A CN105884383 A CN 105884383A
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- 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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- 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
- C04B35/03—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 magnesium oxide, calcium oxide or oxide mixtures derived from dolomite
- C04B35/057—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 magnesium oxide, calcium oxide or oxide mixtures derived from dolomite based on calcium oxide
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- 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
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
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- 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
- C04B2235/42—Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
- C04B2235/422—Carbon
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- 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
- C04B2235/42—Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
- C04B2235/428—Silicon
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Abstract
Electrode paste for a furnace lining is formed by mixing carbon particles, powder and water, wherein the particle size of the carbon particles is 1-5 mm, the particle size of the powder is 100-300 meshes and is one of carbon powder, coal dust, silica fume, calcium powder, bauxite powder, clay powder and sodium silicate, the ratio of the carbon particles to powder in parts by weight is 1:2-1:4; further, in a brown fused alumina production process with a stationary furnace frit method, the furnace lining prepared from the electrode paste is used for replacing water cooling equipment of a stationary furnace, influence of the low temperature of the furnace wall on smelting of raw materials in the furnace is avoided, and the yield per unit of brown fused alumina produced by the stationary furnace is increased. The electrode paste has lower cost and better environmental protection performance, and cannot produce polluting smoke and odor during use, and the yield of brown fused alumina can be effectively increased when the electrode paste is applied to the brown fused alumina production process with the stationary furnace frit method.
Description
Technical field
The invention belongs to technical field of refractory materials, a kind of electrode paste and by this electrode paste Brown Alundum produce in application.
Background technology
Brown Alundum is as primary raw material with bauxite, coke (anthracite), form through pyrolytic semlting in electric arc furnace, the grinding tool made with it, be suitable to the metal that grinding anti-tensile is higher, such as various general steel, malleable cast iron, hard bronze etc., it is possible to manufacture high grade refractory.It is high that Brown Alundum has purity, advantages of good crystallization, and mobility is strong, and linear expansion coefficient is low, corrosion resistant feature.
Brown Alundum is smelted and is belonged to ore-smelting electric furnace smelting process, mainly there are three kinds of smelting modes: stationary furnace clincker process, dumping furnace smelting and stream mode smelting, big owing to banishing smelting scale of investment, current China mainly uses stationary furnace clincker process and dumping furnace smelting two kinds:
1, the corundum that dumping furnace smelting produces, crystal aggregate is many, and crystalline size is little, and glass is mutually high and is distributed on crystal boundary, so poor toughness, fragility is big, and abrasive particle self-sharpening easy to fall off is good, and compactness is good, is relatively adapted to bonded abrasive tool and refractory material.
2, the corundum that stationary furnace clincker process produces, crystal aggregate is few, and crystalline size is big, and the nature of glass is few, so fragility is poor, toughness is big, and abrasion resistance is good.Owing to crystalline solid is big, toughness and fragility preferable, the Brown Alundum that this smelting mode produces is more suitable for coated abrasive tool manufacture.So being still the abrasive material that abrasive band production and application amount is maximum at present.
The general operation process of Brown Alundum melting is: gets the raw materials ready, blow-on, melting, control, refine, come out of the stove, cool down and broken choosing; stationary furnace used in stationary furnace clincker process is during using; need to arrange water cooling plant in furnace wall; water continuously to furnace outer wall; to protect body of heater; but; so on the one hand, water consumption is the biggest; on the other hand furnace wall temperature is relatively low; the raw material contacted with furnace wall is caused not to be smelted; the frit finally given is the part at body of heater center, has a strong impact on final products yield.
Brown Alundum is in fusion process, its temperature is up to more than 2000 DEG C, arc temperature then up to more than 3000 DEG C, therefore, need to be selected to bear the material of this high temperature, such as: electrode paste, as the liner of stationary furnace, but, containing Colophonium in electrode paste, in use, Colophonium can produce flue dust and penetrating odor, works the mischief operating environment and personnel.
Summary of the invention
It is an object of the invention to provide the electrode paste of a kind of furnace lining, and be applied in the melting of Brown Alundum, furnace lining as stationary furnace, thus save the water cooling plant arranged on stationary furnace furnace wall, make the raw material in body of heater can obtain melting, thus stationary furnace is greatly improved and smelts the yield of Brown Alundum.
In order to solve above-mentioned technical problem, the technical solution adopted in the present invention is: a kind of furnace lining electrode paste, added water by carbon granule and powder-material and mix, wherein the granularity of carbon granule is 1-5mm, the granularity of powder-material is 100 ~ 300 mesh, powder-material is the one in powdered carbon, coal dust, silica flour, calcium powder, bauxite powder, clay powder and sodium silicate, and carbon granule is 1:2 ~ 1:4 with the proportioning of powder-material according to parts by weight.
Described electrode paste is applied in the production of Brown Alundum, a kind of technique utilizing described electrode paste to produce Brown Alundum, this technique uses stationary furnace clincker process, through getting the raw materials ready, blow-on, melting, control, refine, come out of the stove, cooling and broken choosing finally give product, wherein during blow-on, melting in stationary furnace is added raw materials into after the starting the arc, before raw material puts into stationary furnace, need to carry out the making of furnace lining, its manufacture method is: the inner sleeve matched with stationary furnace stove shape be placed in stationary furnace, cast cavity is formed between inner sleeve and stationary furnace inwall, described electrode paste is cast in this cast cavity, inner sleeve is taken out after it solidify to form furnace lining, input and the melting of raw material can be carried out.
Further, described stationary furnace inwall removably arranges hanging column.
Compared with prior art, the invention has the beneficial effects as follows:
First, the electrode paste composition of the present invention eliminates conventional Colophonium, but stir with carbon granule again after using powder-material to mix with water and obtain, and these powder-materials in use will not produce flue dust and the abnormal smells from the patient of contaminative, it is ensured that the cleaning of operating environment and operator's is healthy.
Second, utilize the electrode paste furnace lining as stationary furnace of the present invention, so the water cooling plant on stationary furnace furnace wall can be saved, avoid that furnace wall temperature is low affects the melting of raw material in stove, and higher temperature can be kept as the electrode paste of furnace lining, it is the abundant melting of the raw material contacted, and then the yield of stationary furnace is greatly improved.
Detailed description of the invention
Below by specific embodiment, the present invention is further illustrated.
Embodiment 1 ~ 21 is the detailed description of the invention of furnace lining electrode paste in the present invention.
Embodiment 1: a kind of furnace lining electrode paste, according to parts by weight, is added water by the powdered carbon of the carbon granule of 1 part and 2 parts and mixes, and the granularity of carbon granule is 1mm, and the granularity of powdered carbon is 300 mesh.
Embodiment 2: a kind of furnace lining electrode paste, according to parts by weight, is added water by the powdered carbon of the carbon granule of 1 part and 3 parts and mixes, and the granularity of carbon granule is 2mm, and the granularity of powdered carbon is 200 mesh.
Embodiment 3: a kind of furnace lining electrode paste, according to parts by weight, is added water by the powdered carbon of the carbon granule of 1 part and 4 parts and mixes, and the granularity of carbon granule is 5mm, and the granularity of powdered carbon is 100 mesh.
Embodiment 4: a kind of furnace lining electrode paste, according to parts by weight, is added water by the coal dust of the carbon granule of 1 part and 2 parts and mixes, and the granularity of carbon granule is 1mm, and the granularity of coal dust is 300 mesh.
Embodiment 5: a kind of furnace lining electrode paste, according to parts by weight, is added water by the coal dust of the carbon granule of 1 part and 3 parts and mixes, and the granularity of carbon granule is 2mm, and the granularity of coal dust is 200 mesh.
Embodiment 6: a kind of furnace lining electrode paste, according to parts by weight, is added water by the coal dust of the carbon granule of 1 part and 4 parts and mixes, and the granularity of carbon granule is 5mm, and the granularity of coal dust is 100 mesh.
Embodiment 7: a kind of furnace lining electrode paste, according to parts by weight, is added water by the silica flour of the carbon granule of 1 part and 2 parts and mixes, and the granularity of carbon granule is 1mm, and the granularity of silica flour is 300 mesh.
Embodiment 8: a kind of furnace lining electrode paste, according to parts by weight, is added water by the silica flour of the carbon granule of 1 part and 3 parts and mixes, and the granularity of carbon granule is 2mm, and the granularity of silica flour is 200 mesh.
Embodiment 9: a kind of furnace lining electrode paste, according to parts by weight, is added water by the silica flour of the carbon granule of 1 part and 4 parts and mixes, and the granularity of carbon granule is 5mm, and the granularity of silica flour is 200 mesh.
Embodiment 10: a kind of furnace lining electrode paste, according to parts by weight, is added water by the calcium powder of the carbon granule of 1 part and 2 parts and mixes, and the granularity of carbon granule is 1mm, and the granularity of calcium powder is 300 mesh, and calcium powder is calcium carbonate.
Embodiment 11: a kind of furnace lining electrode paste, according to parts by weight, is added water by the calcium powder of the carbon granule of 1 part and 3 parts and mixes, and the granularity of carbon granule is 2mm, and the granularity of calcium powder is 200 mesh, and calcium powder is calcium carbonate.
Embodiment 12: a kind of furnace lining electrode paste, according to parts by weight, is added water by the calcium powder of the carbon granule of 1 part and 4 parts and mixes, and the granularity of carbon granule is 5mm, and the granularity of calcium powder is 100 mesh, and calcium powder is calcium carbonate.
Embodiment 13: a kind of furnace lining electrode paste, according to parts by weight, is added water by the bauxite powder of the carbon granule of 1 part and 2 parts and mixes, and the granularity of carbon granule is 1mm, and the granularity of bauxite powder is 300 mesh.
Embodiment 14: a kind of furnace lining electrode paste, according to parts by weight, is added water by the bauxite powder of the carbon granule of 1 part and 3 parts and mixes, and the granularity of carbon granule is 2mm, and the granularity of bauxite powder is 200 mesh.
Embodiment 15: a kind of furnace lining electrode paste, according to parts by weight, is added water by the bauxite powder of the carbon granule of 1 part and 4 parts and mixes, and the granularity of carbon granule is 5mm, and the granularity of bauxite powder is 100 mesh.
Embodiment 16: a kind of furnace lining electrode paste, according to parts by weight, is added water by the clay powder of the carbon granule of 1 part and 2 parts and mixes, and the granularity of carbon granule is 1mm, and the granularity of clay powder is 300 mesh.
Embodiment 17: a kind of furnace lining electrode paste, according to parts by weight, is added water by the clay powder of the carbon granule of 1 part and 3 parts and mixes, and the granularity of carbon granule is 2mm, and the granularity of clay powder is 200 mesh.
Embodiment 18: a kind of furnace lining electrode paste, according to parts by weight, is added water by the clay powder of the carbon granule of 1 part and 4 parts and mixes, and the granularity of carbon granule is 5mm, and the granularity of clay powder is 100 mesh.
Embodiment 19: a kind of furnace lining electrode paste, according to parts by weight, is added water by the sodium silicate of the carbon granule of 1 part and 2 parts and mixes, and the granularity of carbon granule is 1mm, and the granularity of sodium silicate is 300 mesh.
Embodiment 20: a kind of furnace lining electrode paste, according to parts by weight, is added water by the sodium silicate of the carbon granule of 1 part and 3 parts and mixes, and the granularity of carbon granule is 2mm, and the granularity of sodium silicate is 200 mesh.
Embodiment 21: a kind of furnace lining electrode paste, according to parts by weight, is added water by the sodium silicate of the carbon granule of 1 part and 4 parts and mixes, and the granularity of carbon granule is 5mm, and the granularity of sodium silicate is 100 mesh.
Embodiment 22: the application in Brown Alundum produces of the electrode paste in any of the above-described embodiment is as follows:
A kind of technique utilizing above-mentioned electrode paste to produce Brown Alundum, this technique uses stationary furnace clincker process, through getting the raw materials ready, blow-on, melting, control, refine, come out of the stove, cooling and broken choosing finally give product, wherein during blow-on, melting in stationary furnace is added raw materials into after the starting the arc, when utilizing stationary furnace to produce Brown Alundum every time, before needing before getting the raw materials ready or feeding intake, the electrode paste in above-described embodiment is utilized to make the furnace lining of stationary furnace, concrete grammar is: the inner sleeve matched with stationary furnace stove shape be placed in stationary furnace, cast cavity is formed between inner sleeve and stationary furnace inwall, described electrode paste is cast in this cast cavity, inner sleeve is taken out after it solidify to form furnace lining, input and the melting of raw material can be carried out.
For the most fixing furnace lining, along arranging fixing hole and wearing bolt on the inwall of stationary furnace, the length that adjustment bolt stretches out in stove is with the furnace lining of fixing different-thickness.
Claims (3)
1. a furnace lining electrode paste, it is characterized in that: being added water by carbon granule and powder-material mixes, wherein the granularity of carbon granule is 1-5mm, the granularity of powder-material is 100 ~ 300 mesh, powder-material is the one in powdered carbon, coal dust, silica flour, calcium powder, bauxite powder, clay powder and sodium silicate, and carbon granule is 1:2 ~ 1:4 with the proportioning of powder-material according to parts by weight.
2. the technique that the electrode paste that a kind utilizes described in claim 1 produces Brown Alundum, this technique uses stationary furnace clincker process, through getting the raw materials ready, blow-on, melting, control, refine, come out of the stove, cooling and broken choosing finally give product, wherein during blow-on, melting in stationary furnace is added raw materials into after the starting the arc, it is characterized in that: before raw material puts into stationary furnace, need to carry out the making of furnace lining, its manufacture method is: the inner sleeve matched with stationary furnace stove shape be placed in stationary furnace, cast cavity is formed between inner sleeve and stationary furnace inwall, described electrode paste is cast in this cast cavity, inner sleeve is taken out after it solidify to form furnace lining, input and the melting of raw material can be carried out.
The production technology of Brown Alundum the most according to claim 2, it is characterised in that: described stationary furnace inwall removably arranges hanging column.
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| CN201610226256.3A CN105884383A (en) | 2016-04-13 | 2016-04-13 | Electrode paste and application thereof in production of brown fused alumina |
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| CN201610226256.3A CN105884383A (en) | 2016-04-13 | 2016-04-13 | Electrode paste and application thereof in production of brown fused alumina |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112266254A (en) * | 2020-10-14 | 2021-01-26 | 石横特钢集团有限公司 | Hole-plugging stemming for submerged arc furnace and preparation method thereof |
Citations (4)
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| BR9005840A (en) * | 1990-11-19 | 1992-06-30 | Alcan Brasil | PROCESS FOR OBTAINING ELECTRIC PASTE FOR FERROLIGAS, AND RESULTING PRODUCT |
| CN101214985A (en) * | 2008-01-11 | 2008-07-09 | 陈宏亲 | Technique for preparing brown corundum |
| CN101774566A (en) * | 2009-12-31 | 2010-07-14 | 武建国 | Technical formula and production method of carbon electrode |
| CN102726120A (en) * | 2009-12-16 | 2012-10-10 | 伊塔尔格赫萨股份公司 | Electrode paste for electrodes in binder-free graphite with hydrocarbon base |
-
2016
- 2016-04-13 CN CN201610226256.3A patent/CN105884383A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR9005840A (en) * | 1990-11-19 | 1992-06-30 | Alcan Brasil | PROCESS FOR OBTAINING ELECTRIC PASTE FOR FERROLIGAS, AND RESULTING PRODUCT |
| CN101214985A (en) * | 2008-01-11 | 2008-07-09 | 陈宏亲 | Technique for preparing brown corundum |
| CN102726120A (en) * | 2009-12-16 | 2012-10-10 | 伊塔尔格赫萨股份公司 | Electrode paste for electrodes in binder-free graphite with hydrocarbon base |
| CN101774566A (en) * | 2009-12-31 | 2010-07-14 | 武建国 | Technical formula and production method of carbon electrode |
Non-Patent Citations (3)
| Title |
|---|
| 华勇等: "《磨料磨具导论》", 31 December 2004, 中国标准出版社 * |
| 孙斯衡: "《刚玉制造》", 31 December 1983, 机械工业部机床工具工业局出版 * |
| 石富: "《稀土冶金》", 31 December 1994, 内蒙古大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112266254A (en) * | 2020-10-14 | 2021-01-26 | 石横特钢集团有限公司 | Hole-plugging stemming for submerged arc furnace and preparation method thereof |
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Application publication date: 20160824 |