CN101062867A - Slag antiseizing spraying material for desulfurization hot-metal bottle - Google Patents
Slag antiseizing spraying material for desulfurization hot-metal bottle Download PDFInfo
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- CN101062867A CN101062867A CNA2007100519831A CN200710051983A CN101062867A CN 101062867 A CN101062867 A CN 101062867A CN A2007100519831 A CNA2007100519831 A CN A2007100519831A CN 200710051983 A CN200710051983 A CN 200710051983A CN 101062867 A CN101062867 A CN 101062867A
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- slag
- antiseizing
- metal bottle
- spraying material
- desulfurization hot
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
- Ceramic Products (AREA)
Abstract
The invention discloses an antiseize slag spraying material for sulfur removal hot iron tank, which comprises the following steps: allocating mass percent with 70-90% carbonaceous fireproof material waste brick, 4-8% alumina cement, 1-3% silicate cement, 1-3% silicon micronized quartz powder, 2-13% clay, 0-5% soil carbite, 0. 5-3% inorganic staple fiber and 0. 1-0. 5% phosphate; getting the product. This invention possesses wide raw material source, low cost and good using effect.
Description
Technical field
The present invention relates to a kind of spray material, specifically a kind of anti-dry slag spray material that prevents the desulfurization hot-metal bottle dry slag.
Background technology
In the desulfurizing iron process, desulfurization hot-metal bottle jar mouth, jar edge and jar interior slag lining slagging scorification iron are serious gradually, cause the slack tank quality to increase, and move on the center of gravity, badly influence ironmaking, STEELMAKING PRODUCTION tissue and production safety; Simultaneously,, removes very difficultly, have to remove overhaul in advance, cause the desulfurization hot-metal bottle life-span lower, turnover anxiety, refractory consumption increase because the dry slag thing is very hard and combine firmly with jar lining.For the not serious desulfurization hot-metal bottle of dry slag, the treatment process commonly used of dry slag is to adopt coaloust-oxygen gun that the dry slag layer is at first cut, little clinker after adopting suspender to cut then carries out hook block to be safeguarded, the deficiency of this dry slag treatment process has seriously endangered the use properties and the work-ing life of equipment for causing serving as a contrast the body breakage; Treatment time is longer, has reduced the turnover frequency of equipment.At present, though have report at slag antiseizing spraying material for desulfurization hot-metal bottle, " research of desulfurization hot-metal bottle slag line spray material " Wuhan Iron and Steel Plant technology " 2003 (3) " and " climbing the exploitation " Sichuan metallurgy " 2004 (4) of the antiseized technology of steel half steel jar " has reported development and practical application effect at slag antiseizing spraying material for desulfurization hot-metal bottle, spray material is mainly by high alumina, crystalline flake graphite, amorphous graphite, silicon carbide is main raw material, with the inorganic chemistry wedding agent, micro mist, in the high-alumina cement one or more are wedding agent, adding various property-modifying additives again constitutes, can be coated in the desulfurization hot-metal bottle jar mouth of various materials easily, jar edge and slag lining jar lining surface, form uniformly anti-dry slag sprayed coating, the performance that difficult quilt by graphite in the sprayed coating and carbofrax material soaks into, play an adhesive and jar effect of lining isolated, thereby reduced the cohesive strength of dry slag thing significantly, reach and reduce the scarfing cinder difficulty, shorten the scarfing cinder time, alleviate the scarfing cinder process to the damaged influence of jar lining, by practical application, received prolongation desulfurization hot-metal bottle work-ing life, reduce maintenance cost, improve the effect of desulfurization hot-metal bottle turnover rate.But, because the sprayed coating of this technology is thicker, be generally about 35mm, to spray the materials amount big at every turn, and simultaneously, the spray material prices of raw and semifnished materials are higher, promoted desulfurization hot-metal bottle refractory consumption rate and desulphurization cost.
Summary of the invention
The present invention is directed to existing in prior technology desulfurization hot-metal bottle refractory consumption rate and desulphurization cost problem of higher, so provide a kind of cheap, easy to prepare, use simple slag antiseizing spraying material for desulfurization hot-metal bottle.
In order to realize above-mentioned technical problem, technical scheme of the present invention is achieved in that described anti-dry slag spray material is made up of following raw materials by weight percent: the carbon containing refractory brick 70~90% that gives up, luminite cement 4~8%, silicate cement 1~3%, silicon powder 1~3%, clay 2~13%, amorphous graphite 0~5%, inorganic staple fibre 0.5~3%, phosphoric acid salt 0.1~0.5%.
Wherein, the useless brick of described carbon containing refractory can be the fire-resistant useless brick of aluminium silicon carbide carbonaceous, the fire-resistant useless brick of aluminium carbonaceous or the fire-resistant useless brick of magnesium carbonaceous.
Wherein, the weight percent that the useless brick of described carbon containing refractory is divided into three kinds of granularities and three kinds of granularities is respectively: 3~1mm be 15~25%, 1~0.088mm be 40~50%,<0.088mm's is 30~40%.
Wherein, described phosphoric acid salt is tripoly phosphate sodium STPP or Sodium hexametaphosphate 99.
Wherein, described amorphous graphite and clay were the powder of 100 mesh sieves.
Wherein, described inorganic staple fibre adopts rock wool, slag wool, pure aluminium silicate series cellucotton or useless cellucotton; The staple length of described inorganic staple fibre is 2~8mm.
The present invention is the main raw material(s) of spray material with the useless brick of carbon containing refractory, replaces high alumina of the prior art, crystalline flake graphite, silicon carbide and part or all of amorphous graphite, thereby, reduced the spray material cost significantly; With luminite cement and silicate cement is combined binder, by the interaction of two kinds of cement, reaches the purpose of sprayed coating rapid solidification; With the clay is the part powder, utilizes the adhesion property of clay, reduces the bounce-back rate of spray material, improves the utilization ratio of spray material; By inorganic short fiber toughened effect, improve the quick baking conformability of spray material; With the silicon powder is dispersion agent, improves the mixing uniformity of spray material; With phosphoric acid salt is water reducer, reduces the spraying application water consumption.
Concrete preparation technology is: at first carry out starting material and prepare, component and weight percent are: the carbon containing refractory brick 70~90% that gives up, luminite cement 4~8%, silicate cement 1~3%, silicon powder 1~3%, clay 2~13%, amorphous graphite 0~5%, inorganic staple fibre 0.5~3%, phosphoric acid salt 0.1~0.5%; Wherein, mainly be that the useless brick of carbon containing refractory is removed the gred or deironing processing, fragmentation, fine grinding and screening, the weight percent that screening back material particle size is divided into three kinds and three kinds granularities is respectively: 3~1mm be 15~25%, 1~0.088mm be 40~50%,<0.088mm's is 30~40%; Then,, promptly obtain required spray material with stirring in all raw materials adding agitators, and the pack packing.
Slag antiseizing spraying material for desulfurization hot-metal bottle using method of the present invention is: adopt the mode of smearing or directly spraying that is in harmonious proportion, under equipment cold conditions and hot condition, all can prevent dry slag processing construction, after construction finishes, can come into operation immediately.
Slag antiseizing spraying material for desulfurization hot-metal bottle of the present invention has following advantage:
1, slag antiseizing spraying material for desulfurization hot-metal bottle preparation of the present invention is simple, and the starting material source is wide, and cost is low, and can accomplish the comprehensive utilization of waste and old resource.
2, excellent property of the present invention can satisfy the anti-dry slag requirement of desulfurization hot-metal bottle under the different use temperature conditions.
Embodiment
Be described in further detail below in conjunction with embodiment:
Embodiment 1
Prepare 100 kilograms of slag antiseizing spraying material for desulfurization hot-metal bottle:
Its raw material is formed and weight percent is: will be through give up 70.7 kilograms of bricks of corundum (aluminium) the silicon carbide carbonaceous that slagging-off or deironing are handled, wherein, granularity be 3~1mm, 1~0.088mm and<0.088mm is respectively 14.14 kilograms, 31.82 kilograms and 24.74 kilograms; Cross 12 kilograms of the clay powders of 100 mesh sieves, 7 kilograms of luminite cements, 1.8 kilograms of silicate cements, 3 kilograms of silicon powders, staple length are 2 kilograms on the inorganic staple fibre of 2~8mm, cross 3 kilograms in the amorphous graphite powder of 100 mesh sieves, 0.5 kilogram of tripoly phosphate sodium STPP, above-mentioned raw materials added in the agitator stir, promptly obtain required spray material, and the pack packing.
Embodiment 2
Prepare 100 kilograms of slag antiseizing spraying material for desulfurization hot-metal bottle:
Its raw material is formed and weight percent is: will be through 82 kilograms of the useless bricks of the aluminium silicon carbide carbonaceous that removes the gred or deironing is handled, wherein, granularity be 3~1mm, 1~0.088mm and<0.088mm is respectively 16.4 kilograms, 36.9 kilograms and 28.7 kilograms, cross 7 kilograms of the clay powders of 100 mesh sieves, 5 kilograms of luminite cements, 2.8 kilograms of silicate cements, 2 kilograms of silicon powders, staple length is 1 kilogram on the inorganic staple fibre of 2~8mm, 0.2 kilogram of tripoly phosphate sodium STPP, above-mentioned raw materials added in the agitator stir, promptly obtain required spray material, and the pack packing.
Embodiment 3
Prepare 100 kilograms of slag antiseizing spraying material for desulfurization hot-metal bottle:
Its raw material is formed and weight percent is: will be through 86 kilograms of the useless bricks of the magnesium silicon carbide carbonaceous that removes the gred or deironing is handled, wherein, granularity is 3~1mm, 1~0.088mm and<0.088mm is respectively 17.2 kilograms, 38.7 the kilogram and 30.1 kilograms, cross 2 kilograms of the clay powders of 100 mesh sieves, 4 kilograms of luminite cements, 1 kilogram of silicate cement, 1 kilogram of silicon powder, cross 4.4 kilograms in the amorphous graphite powder of 100 mesh sieves, staple length is 1.5 kilograms on the inorganic staple fibre of 2~8mm, and 0.1 kilogram of Sodium hexametaphosphate 99 adds above-mentioned raw materials in the agitator and to stir, promptly obtain required spray material, and the pack packing.
Particularly, 100 tons of blowing desulfurizations with the easy dry slag of desulfurization hot-metal bottle the jar mouth, jar along and jar in slag lining, adopt spray material of the present invention and commercially available spray material to carry out the industrialness simultaneous test, test-results shows, spray material of the present invention has reached the same effect of commercially available spray material, and promptly desulfurization hot-metal bottle dry slag layer need not carry out flame cutting and just can disposable integral hangs and take off.
Claims (10)
1, slag antiseizing spraying material for desulfurization hot-metal bottle, it is characterized in that described anti-dry slag spray material is made up of following raw materials by weight percent: the carbon containing refractory brick 70~90% that gives up, luminite cement 4~8%, silicate cement 1~3%, silicon powder 1~3%, clay 2~13%, amorphous graphite 0~5%, inorganic staple fibre 0.5~3%, phosphoric acid salt 0.1~0.5%.
2, slag antiseizing spraying material for desulfurization hot-metal bottle according to claim 1, it is characterized in that described anti-dry slag spray material is made up of following raw materials by weight percent: the carbon containing refractory brick 70.7% that gives up, luminite cement 7%, silicate cement 1.8%, silicon powder 3%, clay 12%, amorphous graphite 3%, inorganic staple fibre 2%, phosphoric acid salt 0.5%.
3, slag antiseizing spraying material for desulfurization hot-metal bottle according to claim 1, it is characterized in that described anti-dry slag spray material is made up of following raw materials by weight percent: the carbon containing refractory brick 82% that gives up, luminite cement 5%, silicate cement 2.8%, silicon powder 2%, clay 7%, inorganic staple fibre 1%, phosphoric acid salt 0.2%.
4, slag antiseizing spraying material for desulfurization hot-metal bottle according to claim 1, it is characterized in that described anti-dry slag spray material is made up of following raw materials by weight percent: the carbon containing refractory brick 86% that gives up, luminite cement 4%, silicate cement 1%, silicon powder 1%, clay 2%, amorphous graphite 4.4%, inorganic staple fibre 1.5%, phosphoric acid salt 0.1%.
5,, it is characterized in that the useless brick of described carbon containing refractory can be the fire-resistant useless brick of aluminium silicon carbide carbonaceous, the fire-resistant useless brick of aluminium carbonaceous or the fire-resistant useless brick of magnesium carbonaceous according to claim 1,2,3 or 4 described slag antiseizing spraying material for desulfurization hot-metal bottle.
6, according to claim 1,2,3 or 4 described slag antiseizing spraying material for desulfurization hot-metal bottle, it is characterized in that the weight percent that the useless brick of described carbon containing refractory is divided into three kinds of granularities and three kinds of granularities is respectively: 3~1mm be 15~25%, 1~0.088mm be 40~50%,<0.088mm's is 30~40%.
7,, it is characterized in that described phosphoric acid salt is tripoly phosphate sodium STPP or Sodium hexametaphosphate 99 according to claim 1,2,3 or 4 described slag antiseizing spraying material for desulfurization hot-metal bottle.
8,, it is characterized in that described amorphous graphite and clay were the powder of 100 mesh sieves according to claim 1,2,3 or 4 described slag antiseizing spraying material for desulfurization hot-metal bottle.
9,, it is characterized in that described inorganic staple fibre adopts rock wool, slag wool, pure aluminium silicate series cellucotton or useless cellucotton according to claim 1,2,3 or 4 described slag antiseizing spraying material for desulfurization hot-metal bottle.
10, slag antiseizing spraying material for desulfurization hot-metal bottle according to claim 9, the staple length that it is characterized in that described inorganic staple fibre is 2~8mm.
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CNB2007100519831A CN100455545C (en) | 2007-04-26 | 2007-04-26 | Slag antiseizing spraying material for desulfurization hot-metal bottle |
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CNB2007100519831A CN100455545C (en) | 2007-04-26 | 2007-04-26 | Slag antiseizing spraying material for desulfurization hot-metal bottle |
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Cited By (23)
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CN101618957B (en) * | 2009-07-30 | 2012-02-08 | 云南常青树投资有限公司 | Preparation method of dope |
CN102557694A (en) * | 2012-03-13 | 2012-07-11 | 湖南省涟源市合成耐火材料厂 | Steel separating agent for rotary platform and furnace cover of ladle refining furnace and method for preventing steel bonding of rotary platform and furnace cover of ladle refining furnace |
CN102557683A (en) * | 2011-12-23 | 2012-07-11 | 中钢集团洛阳耐火材料研究院有限公司 | Aluminum chrome refractory material |
CN102965474A (en) * | 2012-11-22 | 2013-03-13 | 河南省西保冶材集团有限公司 | Anti-slag agent for high temperature VD (Vaccum Distillation) furnace |
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