CN100487067C - Coating against binding slags - Google Patents
Coating against binding slags Download PDFInfo
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- CN100487067C CN100487067C CNB2006100186222A CN200610018622A CN100487067C CN 100487067 C CN100487067 C CN 100487067C CN B2006100186222 A CNB2006100186222 A CN B2006100186222A CN 200610018622 A CN200610018622 A CN 200610018622A CN 100487067 C CN100487067 C CN 100487067C
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- binding slags
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Abstract
The present invention relates to the paint against viscous slag for steel metallurgical devices. The present invention solves the defects that the viscous-slag processing paint of the existing metalluAn anti-adherent slag pigment consists of carbon-aluminum carbon silicone or carbon-aluminum fire-proofing brick powder 70~85wt%, bentonite 9~15wt%, grammite powder 5~15wt%, graphite fine powder 0 ~3wrgical devices has high price, and raw materials are not extensive relatively. The present invention is composed of 70 to 85% of aluminum silicon carbide carbon fireproof brick powder or aluminum carbt%, phosphate 0.5~3.5wt% and organic binder 0.01~2wt%. It is cheap, has wide raw materials resources and better storing stability. on fireproof brick powder, 9 to 15% of bentonite, 5 to 15% of wollastonite powder, 0 to 3% of fine graphite powder, 0.5 to 3.5% of phosphate, 0.01 to 2% of organic binders according to raw materials and weight percentage. The present invention has the characteristics of extensive raw material resource, low cost, waste utilization, stable storage and good operation effect.
Description
Technical field
The present invention relates to a kind of coating, specifically a kind of coating against binding slags that prevents ferrous metallurgy equipment dry slag.
Background technology
Numerous metallurgical equipments in ironmaking, the steelmaking process, in actual production process, owing to solidify bonding under the splash adhesion of high-temperature fusant or the naturally cooling condition, the wall that causes adhering to high-temperature fusant or contact with high-temperature fusant glues iron, steel bonding or dry slag, often need expend a large amount of time and energy and handle.For example, containers such as the groove that ironmaking, steel-making are used always, bucket, jar, be mainly used in high-temperature fusant splendid attire and transportation, in practical work process, because the naturally cooling effect in splendid attire or the course of conveying causes the top layer slag to solidify bonding, the efficient loading amount of container constantly descends, deadweight constantly increases, and must carry out just can continuing to use after dry slag is handled; And for example, the converter mouth dry slag problem of steel-making, single-spray particle magnesium vaporizing chamber spray gun inwall dry slag problem, the dry slag problem of KR desulfur agitator, the sticking jar problem of slag ladle slag etc.For groove, bucket, jar that refractory materials lining body is arranged, treatment process commonly used 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 existing multiple coating against binding slags, but because their main raw materials are high alumina fine powder, crystalline flake graphite fine powder, amorphous graphite fine powder, and be suspension agent and secondary combined agent with the wilkinite, with the inorganic chemistry wedding agent is main wedding agent, add various property-modifying additives again and constitute,, limited it and applied so price is higher.
Summary of the invention
The object of the present invention is to provide a kind of cheap, easy to prepare, use simple coating against binding slags.
To achieve these goals, its technical measures:
Coating against binding slags, it is that raw material is formed and weight percent is: aluminium silicon carbide carbonaceous or aluminium carbon refractory brick powder 70～85%, wilkinite 9～15%, wollastonite powder 5～15%, graphite fine powder 0～3%, phosphoric acid salt 0.5～3.5%, organic bond 0.01～2%; The granularity of aluminium silicon carbide carbonaceous or aluminium carbon refractory brick powder, wilkinite, wollastonite is-200 orders.
It is that described aluminium silicon carbide carbonaceous or aluminium carbon refractory brick powder are the refractory brick powder through fine grinding.
It is that described phosphoric acid salt is tripoly phosphate sodium STPP and Sodium hexametaphosphate 99.
It is that described organic bond is dextrin, carboxymethyl cellulose, Natvosol.
It is that described graphite fine powder is earthy or crystalline flake graphite fine powder.
When it is that coating against binding slags is slurry form, need to add the sanitas of trace.
When it is the powder form, need at the scene the back use that stirs of ratio according to powder and water 1:1.
The present invention prevents the dry slag action principle
The main raw material(s) that aluminium silicon carbide carbonaceous or aluminium carbon refractory brick or useless brick powder are coating replaces high alumina fine powder of the prior art, crystalline flake graphite fine powder and part or all of amorphous graphite fine powder;
Wollastonite powder is auxiliary packing, is suspension agent with the wilkinite, and plays the effect of high temperature adhesives under an amount of phosphatic dispersion modifying function;
Add a small amount of organic bond, with normal temperature bonding strength, coating adhesion property and the workability of improving coating.
Concrete preparation technology is: at first carrying out starting material and prepare, mainly is to corundum carborundum carbonaceous or aluminium carbon refractory brick or useless brick removes the gred or deironing is handled, broken, fine grinding, makes powder particles reach-200 orders; Then, according to feed composition and weight percent, stirring in the adding agitator, promptly obtain the powder part of coating, is the ratio of 1:1 in powder and water again, stirs at stirred pot, and churning time promptly obtained required coating greater than 3 hours.
The needs that can use according to the scene with the form supply of material of slurry or powder, for slurry, be considered the stability of depositing, and also need add the sanitas of trace, for powder, then require to add behind the water dispersed with stirring evenly after, can use.
Coating against binding slags using method of the present invention is: adopt the mode of brushing or spraying, under equipment cold conditions and hot condition, all can prevent dry slag processing construction, after construction finishes, can come into operation immediately.
Anti-oxidation paint of fireproof carbon-containing materials of the present invention has following advantage:
1. coating against binding slags preparation of the present invention is simple, and the starting material source is wide, and cost is low, also can accomplish utilization of waste material.
2. excellent property of the present invention can satisfy the anti-dry slag requirement under the different use temperature conditions.
Embodiment
Be described in further detail in conjunction with the embodiments:
Embodiment 1
Prepare 100 kilograms of anti-dry slag slurry coating: its raw material is formed and weight percent is: will be through the useless brick fine powder 77.8% of-200 purpose corundum (aluminium) silicon carbide carbonaceous of slagging-off or deironing processing, wollastonite fine powder 9.26%, yellow starch gum 0.92%, tripoly phosphate sodium STPP 2.77%, sodium bentonite 9.25%, above-mentioned raw materials is mixed and stir, add entry according to the ratio of 1:1 again and stir.Through on slag ladle, having carried out the industrialness simultaneous test of sprayed coating with the spraying lime white.Test-results shows that the slag ladle of sprayed coating turns over jar smoothly, a sticking jar phenomenon occurs, and sprays the slag ladle of lime white, and sticking jar of serious phenomenon appears in part.
Embodiment 2
Prepare 100 kilograms of anti-dry slag slurry coating: its raw material is formed and weight percent is: will be through the useless brick fine powder 82.5% of-200 purpose aluminium silicon carbide carbonaceous of slagging-off or deironing processing, wollastonite fine powder 6.5%, carboxymethyl cellulose 0.05%, Sodium hexametaphosphate 99 1.45%, sodium bentonite 9.0%, amorphous graphite fine powder 0.5% mixes above-mentioned raw materials and stirs, and adds entry according to the ratio of 1:1 again and stirs.Vaporizing chamber inwall at the vaporizing chamber desulphurization spray gun has carried out spray test, test-results shows, be coated with the spray gun of coating against binding slags, dry slag in the vaporizing chamber is very easy to remove, and there is not the spray gun of sprayed coating, dry slag difficult treatment in the vaporizing chamber needs to handle with pneumatic pick for a long time, causes vaporizing chamber rifle lining refractories to peel off sometimes.
Embodiment 3
Prepare 100 kilograms of antiseized ground-slag material coating: its raw material is formed and weight percent is: will be through-200 purpose corundum carborundum carbonaceous waste brick fine powders 71.0% of slagging-off or deironing processing, wollastonite fine powder 12.0%, yellow starch gum 1.5%, crystalline flake graphite fine powder 2.5%, tripoly phosphate sodium STPP 3.0%, sodium bentonite 10%, above-mentioned raw materials mixed and stir powder stand-by.
After adding water according to the 1:1 ratio at the scene, carried out the spraying and the industrialness simultaneous test of sprayed coating not at the desulfurization hot-metal bottle slag lining, the spraying frequency once sprays for 2～5 jars times for using.Test-results shows, the desulfurization hot-metal bottle dry slag layer of sprayed coating need not carry out flame cutting and just can disposable integral hang and take off, alleviate the field maintemance workload of desulfurization hot-metal bottle greatly, guaranteed the integrity of tank body, prolonged the work-ing life of desulfurization hot-metal bottle significantly.
Claims (7)
1, coating against binding slags is characterized in that raw material is formed and weight percent is: aluminium silicon carbide carbonaceous or aluminium carbon refractory brick powder 70～85%, wilkinite 9～15%, wollastonite powder 5～15%, graphite fine powder 0～3%, phosphoric acid salt 0.5～3.5%, organic bond 0.01～2%; The granularity of aluminium silicon carbide carbonaceous or aluminium carbon refractory brick powder, wilkinite, wollastonite is-200 orders.
2, coating against binding slags according to claim 1 is characterized in that described aluminium silicon carbide carbonaceous or aluminium carbon refractory brick powder are the refractory brick powder through fine grinding.
3, coating against binding slags according to claim 1 is characterized in that described phosphoric acid salt is tripoly phosphate sodium STPP and Sodium hexametaphosphate 99.
4, coating against binding slags according to claim 1 is characterized in that described organic bond is dextrin, carboxymethyl cellulose or Natvosol.
5, coating against binding slags according to claim 1 is characterized in that described graphite fine powder is earthy or crystalline flake graphite fine powder.
6, coating against binding slags according to claim 1 when it is characterized in that coating against binding slags is slurry form, needs to add the sanitas of trace.
7, coating against binding slags according to claim 1 when it is characterized in that the powder form, needs at the scene the back use that stirs of ratio according to powder and water 1:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100186222A CN100487067C (en) | 2006-03-23 | 2006-03-23 | Coating against binding slags |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100186222A CN100487067C (en) | 2006-03-23 | 2006-03-23 | Coating against binding slags |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1817973A CN1817973A (en) | 2006-08-16 |
| CN100487067C true CN100487067C (en) | 2009-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006100186222A Expired - Fee Related CN100487067C (en) | 2006-03-23 | 2006-03-23 | Coating against binding slags |
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| CN107827470B (en) * | 2017-11-01 | 2021-02-26 | 瑞泰马钢新材料科技有限公司 | High-performance slag pot spray coating and preparation method thereof |
| CN108752024A (en) * | 2018-06-15 | 2018-11-06 | 马鞍山钢铁股份有限公司 | A kind of slag ladle slag adhesion spray paint and its preparation and application |
| CN111454660A (en) * | 2020-05-23 | 2020-07-28 | 唐山市曹妃甸区尊荣冶金专用设备制造有限公司 | Steel slag fireproof paint for converter oxygen lance sticking prevention |
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2006
- 2006-03-23 CN CNB2006100186222A patent/CN100487067C/en not_active Expired - Fee Related
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| CN1817973A (en) | 2006-08-16 |
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