CN104710183A - Quick-drying iron runner castable as well as preparation method ad use method thereof - Google Patents
Quick-drying iron runner castable as well as preparation method ad use method thereof Download PDFInfo
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Abstract
The invention provides a quick-drying iron runner castable which is prepared from brown fused alumina, silicon carbide, titanium carbide, coal gangue, an antioxidant, pure calcium aluminate cement, micro silicon powder, an antiknock agent and a water reducing agent. The invention also provides a preparation method of the castable, and the preparation method comprises the following steps: putting the brown fused alumina, the silicon carbide, the titanium carbide, the coal gangue, the antioxidant, the pure calcium aluminate cement, the micro silicon powder, the antiknock agent and the water reducing agent into a strong stirrer according to respective proportions, and stirring for 3-5 minutes to obtain a uniform castable. The invention also provides a use method of the castable, and the use method comprises the following steps: adding water which accounts for 3-4wt% of the total mass of the castable into the castable, stirring in the strong stirrer for 1-2 minutes to ensure that the castable can be used for masonry; and after masonry, baking for 2-3 hours at 500-600 DEG C to ensure that the castable can be used for performing iron exchanging operation. The thermal shock resistance, scour resistance, erosion resistance and oxidation resistance of the quick-drying iron runner castable provided by the invention are far higher than those of a conventional Al2O3-SiC-C castable; and moreover, the quick-drying iron runner castable provided by the invention is greatly reduced in water consumption, and has a characteristic of quick drying.
Description
Technical field
The present invention relates to mould material field, especially a kind of rapid-curing cutback iron runner castable, its preparation method and using method.
Background technology
In recent years, the iron and steel production capacity of China has reached several hundred million ton, due to the increase to molten iron demand, blast furnace maximizes and has become a kind of trend, slag iron is with the generic way going out to tap a blast furnace as large blast furnace, once go out iron to be constantly refreshed, therefore require very strict to the thermal shock resistance of iron runner mould material, erosion-resisting characteristics.The refractory materials that the big-and-middle-sized blast furnace iron runner of current China uses mostly is Al
2o
3-SiC-C mould material.Although SiC and C heat conduction, high abrasion resistance, its antioxidant property is poor, and cause antistrip performance poor after oxidation, erosion-resisting characteristics also decreases.And the common Al used at present
2o
3-SiC-C mould material can not meet the requirement that large-scale, super-huge blast furnace once goes out iron completely.
China is coal big country, and a large amount of exploitations of coal result in the generation of a large amount of coal gangues, not only takies valuable land resources, but also causes serious environmental pollution.Containing a large amount of Al in coal gangue
2o
3and SiO
2, it can be used as producing the raw material of mullite, and the mullite high-quality refractory material that to be a kind of thermal shock resistance extremely strong, and resistance to elevated temperatures and iron-resistant water erosion ability excellent, be the high quality raw material of iron runner casting material.
Summary of the invention
For the weak point existed in the problems referred to above, the invention provides a kind of rapid-curing cutback iron runner castable, its preparation method and using method, improve traditional Al
2o
3anti-oxidant, anti-thermal shock, the erosion-resisting characteristics of-SiC-C mould material, one time iron influx significantly promotes, and can reach more than 18 tons.In addition, water consumption of the present invention significantly reduces, and has quick-drying feature.
For achieving the above object, the invention provides a kind of rapid-curing cutback iron runner castable, be prepared from by Brown Alundum, silicon carbide, titanium carbide, coal gangue, antioxidant, pure calcium aluminate cement, SILICA FUME, detonation suppressor and water reducer.
Above-mentioned a kind of rapid-curing cutback iron runner castable, wherein, the mass ratio of above-mentioned raw materials is: Brown Alundum 65 ~ 75 parts, 10 ~ 20 parts, silicon carbide, titanium carbide 2 ~ 5 parts, coal gangue 2 ~ 4 parts, antioxidant 3 ~ 5 parts, pure calcium aluminate cement 1 ~ 3 part, SILICA FUME 1 ~ 3 part, detonation suppressor 0.1 ~ 0.5 part, water reducer 0.1 ~ 0.5 part.
Above-mentioned a kind of rapid-curing cutback iron runner castable, wherein, described antioxidant is mixed by silicon nitride powder and metallic silicon power, and silicon nitride powder and metallic silicon power mass ratio are 4:1 ~ 5:1;
Pure calcium aluminate cement is Al-71 pure calcium aluminate cement;
SILICA FUME is SiO
2super-fine powder;
Detonation suppressor is metallic aluminium powder;
Water reducer is the compound water reducer that is a kind of or that prepared by sodium polyacrylate and tripoly phosphate sodium STPP of sodium polyacrylate or tripoly phosphate sodium STPP.
Above-mentioned a kind of rapid-curing cutback iron runner castable, wherein, in described compound water reducer, the mass ratio of sodium polyacrylate and tripoly phosphate sodium STPP is 1:1.5 ~ 1:3.
Above-mentioned a kind of rapid-curing cutback iron runner castable, wherein, the content of described Brown Alundum is greater than 95wt.%;
Described carborundum content is greater than 98wt.%;
Described titanium carbide content is greater than 98wt.%;
SiO in described coal gangue
2content is 55% ~ 65wt.%, Al
2o
3content is 25 ~ 35wt.%;
Si in described antioxidant
3n
4si in silicon nitride
3n
4content is greater than 98wt.%;
In metallic silicon power, Si content is greater than 98wt.%;
Described SiO
2siO in super-fine powder
2content is greater than 95wt.%;
In described metallic aluminium powder, the content of Al is greater than 99wt.%.
Above-mentioned a kind of rapid-curing cutback iron runner castable, wherein, the particle diameter of described Brown Alundum is respectively 6 ~ 10mm, 2 ~ 6mm, 0.5 ~ 2mm and 0.2 ~ 0.5mm, and the mass ratio between above-mentioned four kinds of particle diameters is 5:2:3:4;
The particle diameter of silicon carbide is less than 0.088mm;
The particle diameter of titanium carbide is for being less than 0.045mm;
The particle diameter of coal gangue is for being less than 0.045mm;
Antioxidant is less than 0.045mm by the particle diameter of silicon nitride, and the particle diameter of metallic silicon power is for being less than 0.045mm;
SiO
2the particle diameter of super-fine powder is for being less than 0.001mm;
The particle diameter of metallic aluminium powder is respectively 0.1 ~ 0.088mm, 0.088 ~ 0.055mm, 0.055 ~ 0.045mm, is less than 0.045mm, and the mass ratio of above-mentioned four kinds of granularity aluminium powders is 1:1:1:1.
The present invention also provides a kind of preparation method of rapid-curing cutback iron runner castable, comprises the following steps:
According to respective proportioning number, Brown Alundum, silicon carbide, titanium carbide, coal gangue, antioxidant, pure calcium aluminate cement, SILICA FUME, detonation suppressor and water reducer are put into machine,massing and stirs 3 ~ 5min, thus obtain uniform mould material.
The present invention also provides a kind of using method of rapid-curing cutback iron runner castable, comprises the following steps: the water adding mould material total mass 3 ~ 4wt.% in mould material, after stirring 1 ~ 2min, can carry out building use by laying bricks or stones in machine,massing;
At 500 ~ 600 DEG C, toast 2 ~ 3h after building by laying bricks or stones, logical iron operation can be carried out.
Compared with prior art, the present invention has the following advantages:
(1) coal gangue used in raw material of the present invention, it in use, can fabricated in situ mullite by flowing molten iron heat.Because coal gangue particle is tiny, can be evenly distributed in mould material, and with slight volumetric expansion in the process of its mullitization, the compactness of mould material can be strengthened further, the thermal shock resistance of mould material, scour resistance and erosion-resisting characteristics can be significantly improved.In addition, containing the C of residual minim in coal gangue, the antioxidant property of mould material can be strengthened, strengthen work-ing life.Owing to employing coal gangue in raw material, fraction solids waste of dissolving, the utilization not being only coal gangue opens novel method, has responded national environmental protection policy, also reduces the use of other high quality raw material, reduces production cost.In addition, the ultra-fine SiO used in raw material of the present invention
2powder, significantly can not only improve the mobility of mould material, can also reduce the temperature needed for coal gangue mullitization.
(2) titanium carbide used in raw material of the present invention, its fusing point, higher than nearly 1000 DEG C of SiC, has high resistance to elevated temperatures, and the thermal conductivity similar to SiC, and its high temperature toughness is higher than SiC.Therefore, the antistrip performance that titanium carbide can strengthen casting material is added.The SiO generated after SiC oxidation
2, still can form low melting component with slag.Therefore, when temperature is too high, the melting loss of SiC is comparatively serious.And after adding titanium carbide, titanium carbide generates TiO after oxidized
2, itself and slag generate high melting compound, and slag viscosity is increased, and form protective layer on mould material top layer, hinder molten iron and slag to the further oxidation of mould material and erosion.Because the present invention have selected the titanium carbide that particle diameter is less than 0.045mm, have great specific surface area, high temperature generates uniform protective layer, significantly can promote oxidation-resistance and the erosion-resisting characteristics of mould material of the present invention.Therefore, the present invention, under the effect of titanium carbide and antioxidant, not only instead of traditional Al
2o
3the effect of C in-SiC-C mould material, and utilize the unique effect of titanium carbide, improve the use properties of mould material.
(3) pure calcium aluminate cement used in raw material of the present invention is Al-71 pure calcium aluminate cement, containing less CaO, and the impurity containing trace in feed coal spoil, can fixed part CaO, make mould material CaO total content extremely low, significantly can reduce the water consumption of the present invention's casting, realize fast dry run.In addition, in pure calcium aluminate cement, in CaO and coal gangue, the impurity phase of trace react the material generated and creates micro-liquid phase when high temperature, can promote the carrying out of coal gangue mullitization.
(4) detonation suppressor used in the present invention, is only metallic aluminium powder, does not use traditional Al
2o
3the organic anti-riot fiber etc. added in-SiC-C casting material, not only cost and operation reduce greatly, also help the protection of environment.This is because on the one hand, the water yield required for the present invention and traditional Al
2o
3-SiC-C casting material is compared and is greatly reduced; On the other hand, the present invention's metallic aluminium powder used, its granularity is optimized classification.In baking in earlier stage, reaction forms heat radiation and exhaust capillary road to small grain size aluminium powder rapidly, effectively prevent and breaks out raw because metallic aluminium powder adds caused hydrogen; The macrobead aluminium powder phase after baking, increase vent quantity further, remaining aqueous vapor is got rid of rapidly.Thus, when only adding metallic aluminium powder, effectively prevent mould material in quick-drying process, occur explosion.
Embodiment
The invention provides a kind of rapid-curing cutback iron runner castable, be prepared from by Brown Alundum, silicon carbide, titanium carbide, coal gangue, antioxidant, pure calcium aluminate cement, SILICA FUME, detonation suppressor and water reducer.The mass ratio of above-mentioned raw materials is: Brown Alundum 65 ~ 75 parts, 10 ~ 20 parts, silicon carbide, titanium carbide 2 ~ 5 parts, coal gangue 2 ~ 4 parts, antioxidant 3 ~ 5 parts, pure calcium aluminate cement 1 ~ 3 part, SILICA FUME 1 ~ 3 part, detonation suppressor 0.1 ~ 0.5 part, water reducer 0.1 ~ 0.5 part.
Antioxidant is mixed by silicon nitride powder and metallic silicon power, and silicon nitride powder and metallic silicon power mass ratio are 4:1 ~ 5:1; Pure calcium aluminate cement is Al-71 pure calcium aluminate cement; SILICA FUME is SiO
2super-fine powder; Detonation suppressor is metallic aluminium powder; Water reducer is the compound water reducer that is a kind of or that prepared by sodium polyacrylate and tripoly phosphate sodium STPP of sodium polyacrylate or tripoly phosphate sodium STPP.
In compound water reducer, the mass ratio of sodium polyacrylate and tripoly phosphate sodium STPP is 1:1.5 ~ 1:3.
The content of Brown Alundum is greater than 95wt.%; Carborundum content is greater than 98wt.%; Titanium carbide content is greater than 98wt.%; SiO in coal gangue
2content is 55% ~ 65wt.%, Al
2o
3content is 25 ~ 35wt.%; Antioxidant is by middle Si
3n
4si in silicon nitride
3n
4content is greater than 98wt.%, and in metallic silicon power, Si content is greater than 98wt.%; SiO
2siO in super-fine powder
2content is greater than 95wt.%; In metallic aluminium powder, the content of Al is greater than 99wt.%.
The particle diameter of Brown Alundum is respectively 6 ~ 10mm, 2 ~ 6mm, 0.5 ~ 2mm and 0.2 ~ 0.5mm, and the mass ratio between above-mentioned four kinds of particle diameters is 5:2:3:4; The particle diameter of silicon carbide is less than 0.088mm; The particle diameter of titanium carbide is for being less than 0.045mm; The particle diameter of coal gangue is for being less than 0.045mm; Antioxidant is less than 0.045mm by the particle diameter of silicon nitride, and the particle diameter of metallic silicon power is for being less than 0.045mm; SiO
2the particle diameter of super-fine powder is for being less than 0.001mm; The particle diameter of metallic aluminium powder is respectively 0.1 ~ 0.088mm, 0.088 ~ 0.055mm, 0.055 ~ 0.045mm, is less than 0.045mm, and the mass ratio of above-mentioned four kinds of granularity aluminium powders is 1:1:1:1.
The present invention also provides a kind of preparation method of rapid-curing cutback iron runner castable, comprises the following steps:
According to respective proportioning number, Brown Alundum, silicon carbide, titanium carbide, coal gangue, antioxidant, pure calcium aluminate cement, SILICA FUME, detonation suppressor and water reducer are put into machine,massing and stirs 3 ~ 5min, thus obtain uniform mould material.
The present invention also provides a kind of using method of rapid-curing cutback iron runner castable, comprises the following steps:
In mould material, add the water of mould material total mass 3 ~ 4wt.%, stir 1 ~ 2min in machine,massing after, can carry out building use by laying bricks or stones;
At 500 ~ 600 DEG C, toast 2 ~ 3h after building by laying bricks or stones, logical iron operation can be carried out.
Embodiment one
The invention provides a kind of rapid-curing cutback iron runner castable, be prepared from by Brown Alundum, silicon carbide, titanium carbide, coal gangue, antioxidant, pure calcium aluminate cement, SILICA FUME, detonation suppressor and water reducer.The mass ratio of above-mentioned raw materials is: Brown Alundum 75 parts, 15 parts, silicon carbide, titanium carbide 2 parts, coal gangue 2 parts, antioxidant 3 parts, pure calcium aluminate cement 1 part, SILICA FUME 1 part, detonation suppressor 0.5 part, water reducer 0.5 part.
Antioxidant is mixed by silicon nitride powder and metallic silicon power, and silicon nitride powder and metallic silicon power mass ratio are 4:1 ~ 5:1; Pure calcium aluminate cement is Al-71 pure calcium aluminate cement; SILICA FUME is SiO
2super-fine powder; Detonation suppressor is metallic aluminium powder; Water reducer is sodium polyacrylate.
The content of Brown Alundum is greater than 95wt.%; Carborundum content is greater than 98wt.%; Titanium carbide content is greater than 98wt.%; SiO in coal gangue
2content is 55%wt.%, Al
2o
3content is 25wt.%; Si in antioxidant
3n
4si in silicon nitride
3n
4content is greater than 98wt.%; In metallic silicon power, Si content is greater than 98wt.%; SiO
2siO in super-fine powder
2content is greater than 95wt.%; In metallic aluminium powder, the content of Al is greater than 99wt.%.
The particle diameter of Brown Alundum is respectively 6mm, 2mm, 0.5mm and 0.2mm, and the mass ratio between above-mentioned four kinds of particle diameters is 5:2:3:4; The particle diameter of silicon carbide is less than 0.088mm; The particle diameter of titanium carbide is for being less than 0.045mm; The particle diameter of coal gangue is for being less than 0.045mm; Antioxidant is less than 0.045mm by the particle diameter of silicon nitride, and the particle diameter of metallic silicon power is for being less than 0.045mm; SiO
2the particle diameter of super-fine powder is for being less than 0.001mm; The particle diameter of metallic aluminium powder is respectively 0.1mm, 0.088mm, 0.055mm, is less than 0.045mm, and the mass ratio of above-mentioned four kinds of granularity aluminium powders is 1:1:1:1.
The present invention also provides a kind of preparation method of rapid-curing cutback iron runner castable, comprises the following steps:
According to respective proportioning number, Brown Alundum, silicon carbide, titanium carbide, coal gangue, antioxidant, pure calcium aluminate cement, SILICA FUME, detonation suppressor and water reducer are put into machine,massing and stirs 3min, thus obtain uniform mould material.
The present invention also provides a kind of using method of rapid-curing cutback iron runner castable, comprises the following steps:
In mould material, add the water of mould material total mass 3wt.%, stir 2min in machine,massing after, can carry out building use by laying bricks or stones;
At 560 DEG C, toast 2.5h after building by laying bricks or stones, can carry out logical iron operation, wherein, iron influx reaches 18.5t.
Embodiment two
The invention provides a kind of rapid-curing cutback iron runner castable, be prepared from by Brown Alundum, silicon carbide, titanium carbide, coal gangue, antioxidant, pure calcium aluminate cement, SILICA FUME, detonation suppressor and water reducer.The mass ratio of above-mentioned raw materials is: Brown Alundum 70 parts, 20 parts, silicon carbide, titanium carbide 2 parts, coal gangue 2 parts, antioxidant 3 parts, pure calcium aluminate cement 1 part, SILICA FUME 1 part, detonation suppressor 0.5 part, water reducer 0.5 part.
Antioxidant is mixed by silicon nitride powder and metallic silicon power, and silicon nitride powder and metallic silicon power mass ratio are 4:1 ~ 5:1; Pure calcium aluminate cement is Al-71 pure calcium aluminate cement; SILICA FUME is SiO
2super-fine powder; Detonation suppressor is metallic aluminium powder; Water reducer is sodium polyacrylate.
The content of Brown Alundum is greater than 95wt.%; Carborundum content is greater than 98wt.%; Titanium carbide content is greater than 98wt.%; SiO in coal gangue
2content is 58% ~ 63wt.%, Al
2o
3content is 28 ~ 32wt.%; Antioxidant is by middle Si
3n
4si in silicon nitride
3n
4content is greater than 98wt.%, and in metallic silicon power, Si content is greater than 98wt.%; SiO
2siO in super-fine powder
2content is greater than 95wt.%; In metallic aluminium powder, the content of Al is greater than 99wt.%.
The particle diameter of Brown Alundum is respectively 7 ~ 9mm, 3 ~ 5mm, 1 ~ 1.5mm and 0.3 ~ 0.4mm, and the mass ratio between above-mentioned four kinds of particle diameters is 5:2:3:4; The particle diameter of silicon carbide is less than 0.088mm; The particle diameter of titanium carbide is for being less than 0.045mm; The particle diameter of coal gangue is for being less than 0.045mm; Antioxidant is less than 0.045mm by the particle diameter of silicon nitride, and the particle diameter of metallic silicon power is for being less than 0.045mm; SiO
2the particle diameter of super-fine powder is for being less than 0.001mm; The particle diameter of metallic aluminium powder is respectively 0.1mm, 0.088mm, 0.055mm, is less than 0.045mm, and the mass ratio of above-mentioned four kinds of granularity aluminium powders is 1:1:1:1.
The present invention also provides a kind of preparation method of rapid-curing cutback iron runner castable, comprises the following steps:
According to respective proportioning number, Brown Alundum, silicon carbide, titanium carbide, coal gangue, antioxidant, pure calcium aluminate cement, SILICA FUME, detonation suppressor and water reducer are put into machine,massing and stirs 3min, thus obtain uniform mould material.
The present invention also provides a kind of using method of rapid-curing cutback iron runner castable, comprises the following steps:
In mould material, add the water of mould material total mass 3wt.%, stir 2min in machine,massing after, can carry out building use by laying bricks or stones;
At 560 DEG C, toast 2.5h after building by laying bricks or stones, can carry out logical iron operation, wherein, iron influx reaches 18.5t.
Embodiment three
The invention provides a kind of rapid-curing cutback iron runner castable, be prepared from by Brown Alundum, silicon carbide, titanium carbide, coal gangue, antioxidant, pure calcium aluminate cement, SILICA FUME, detonation suppressor and water reducer.The mass ratio of above-mentioned raw materials is: Brown Alundum 64 parts, 15 parts, silicon carbide, titanium carbide 5 parts, coal gangue 4 parts, antioxidant 5 parts, pure calcium aluminate cement 3 parts, SILICA FUME 3 parts, detonation suppressor 0.5 part, water reducer 0.5 part.
Antioxidant is mixed by silicon nitride powder and metallic silicon power, and silicon nitride powder and metallic silicon power mass ratio are 4:1 ~ 5:1; Pure calcium aluminate cement is Al-71 pure calcium aluminate cement; SILICA FUME is SiO
2super-fine powder; Detonation suppressor is metallic aluminium powder; Water reducer is sodium polyacrylate.
The content of Brown Alundum is greater than 95wt.%; Carborundum content is greater than 98wt.%; Titanium carbide content is greater than 98wt.%; SiO in coal gangue
2content is 63wt.%, Al
2o
3content is 32wt.%; Antioxidant is by middle Si
3n
4si in silicon nitride
3n
4content is greater than 98wt.%, and in metallic silicon power, Si content is greater than 98wt.%; SiO
2siO in super-fine powder
2content is greater than 95wt.%; In metallic aluminium powder, the content of Al is greater than 99wt.%.
The particle diameter of Brown Alundum is respectively 9mm, 3 ~ 5mm, 1.5mm and 0.4mm, and the mass ratio between above-mentioned four kinds of particle diameters is 5:2:3:4; The particle diameter of silicon carbide is less than 0.088mm; The particle diameter of titanium carbide is for being less than 0.045mm; The particle diameter of coal gangue is for being less than 0.045mm; Antioxidant is less than 0.045mm by the particle diameter of silicon nitride, and the particle diameter of metallic silicon power is for being less than 0.045mm; SiO
2the particle diameter of super-fine powder is for being less than 0.001mm; The particle diameter of metallic aluminium powder is respectively 0.1mm, 0.088mm, 0.055mm, is less than 0.045mm, and the mass ratio of above-mentioned four kinds of granularity aluminium powders is 1:1:1:1.
The present invention also provides a kind of preparation method of rapid-curing cutback iron runner castable, comprises the following steps:
According to respective proportioning number, Brown Alundum, silicon carbide, titanium carbide, coal gangue, antioxidant, pure calcium aluminate cement, SILICA FUME, detonation suppressor and water reducer are put into machine,massing and stirs 3min, thus obtain uniform mould material.
The present invention also provides a kind of using method of rapid-curing cutback iron runner castable, comprises the following steps:
In mould material, add the water of mould material total mass 3.5wt.%, stir 2min in machine,massing after, can carry out building use by laying bricks or stones;
At 600 DEG C, toast 3h after building by laying bricks or stones, can carry out logical iron operation, wherein, iron influx reaches 18t.
Embodiment four
The invention provides a kind of rapid-curing cutback iron runner castable, be prepared from by Brown Alundum, silicon carbide, titanium carbide, coal gangue, antioxidant, pure calcium aluminate cement, SILICA FUME, detonation suppressor and water reducer.The mass ratio of above-mentioned raw materials is: Brown Alundum 71 parts, 11 parts, silicon carbide, titanium carbide 5 parts, coal gangue 4 parts, antioxidant 5 parts, pure calcium aluminate cement 2 parts, SILICA FUME 1 part, detonation suppressor 0.5 part, water reducer 0.5 part.
Antioxidant is mixed by silicon nitride powder and metallic silicon power, and silicon nitride powder and metallic silicon power mass ratio are 4:1 ~ 5:1; Pure calcium aluminate cement is Al-71 pure calcium aluminate cement; SILICA FUME is SiO
2super-fine powder; Detonation suppressor is metallic aluminium powder; Water reducer is sodium polyacrylate.
The content of Brown Alundum is greater than 95wt.%; Carborundum content is greater than 98wt.%; Titanium carbide content is greater than 98wt.%; SiO in coal gangue
2content is 63wt.%, Al
2o
3content is 32wt.%; Antioxidant is by middle Si
3n
4si in silicon nitride
3n
4content is greater than 98wt.%, and in metallic silicon power, Si content is greater than 98wt.%; SiO
2siO in super-fine powder
2content is greater than 95wt.%; In metallic aluminium powder, the content of Al is greater than 99wt.%.
The particle diameter of Brown Alundum is respectively 9mm, 5mm, 1.5mm and 0.4mm, and the mass ratio between above-mentioned four kinds of particle diameters is 5:2:3:4; The particle diameter of silicon carbide is less than 0.088mm; The particle diameter of titanium carbide is for being less than 0.045mm; The particle diameter of coal gangue is for being less than 0.045mm; Antioxidant is less than 0.045mm by the particle diameter of silicon nitride, and the particle diameter of metallic silicon power is for being less than 0.045mm; SiO
2the particle diameter of super-fine powder is for being less than 0.001mm; The particle diameter of metallic aluminium powder is respectively 0.1mm, 0.088mm, 0.055mm, is less than 0.045mm, and the mass ratio of above-mentioned four kinds of granularity aluminium powders is 1:1:1:1.
The present invention also provides a kind of preparation method of rapid-curing cutback iron runner castable, comprises the following steps:
According to respective proportioning number, Brown Alundum, silicon carbide, titanium carbide, coal gangue, antioxidant, pure calcium aluminate cement, SILICA FUME, detonation suppressor and water reducer are put into machine,massing and stirs 3min, thus obtain uniform mould material.
The present invention also provides a kind of using method of rapid-curing cutback iron runner castable, comprises the following steps:
In mould material, add the water of mould material total mass 3wt.%, stir 3.5min in machine,massing after, can carry out building use by laying bricks or stones;
At 550 DEG C, toast 2h after building by laying bricks or stones, can carry out logical iron operation, wherein, iron influx reaches 20t.
The foregoing is only preferred embodiment of the present invention, is only illustrative for invention, and nonrestrictive.Those skilled in the art is understood, and can carry out many changes in the spirit and scope that invention claim limits to it, amendment, even equivalence, but all will fall within the scope of protection of the present invention.
Claims (8)
1. a rapid-curing cutback iron runner castable, is characterized in that, is prepared from by Brown Alundum, silicon carbide, titanium carbide, coal gangue, antioxidant, pure calcium aluminate cement, SILICA FUME, detonation suppressor and water reducer.
2. a kind of rapid-curing cutback iron runner castable according to claim 1, it is characterized in that, the mass ratio of above-mentioned raw materials is: Brown Alundum 65 ~ 75 parts, 10 ~ 20 parts, silicon carbide, titanium carbide 2 ~ 5 parts, coal gangue 2 ~ 4 parts, antioxidant 3 ~ 5 parts, pure calcium aluminate cement 1 ~ 3 part, SILICA FUME 1 ~ 3 part, detonation suppressor 0.1 ~ 0.5 part, water reducer 0.1 ~ 0.5 part.
3. a kind of rapid-curing cutback iron runner castable according to claim 2, it is characterized in that, described antioxidant is mixed by silicon nitride powder and metallic silicon power, and silicon nitride powder and metallic silicon power mass ratio are 4:1 ~ 5:1;
Described pure calcium aluminate cement is Al-71 pure calcium aluminate cement;
Described SILICA FUME is SiO
2super-fine powder;
Described detonation suppressor is metallic aluminium powder;
Described water reducer is the compound water reducer that is a kind of or that prepared by sodium polyacrylate and tripoly phosphate sodium STPP of sodium polyacrylate or tripoly phosphate sodium STPP.
4. a kind of rapid-curing cutback iron runner castable according to claim 3, is characterized in that, in described compound water reducer, the mass ratio of sodium polyacrylate and tripoly phosphate sodium STPP is 1:1.5 ~ 1:3.
5. a kind of rapid-curing cutback iron runner castable according to claim 3 or 4, it is characterized in that, the content of described Brown Alundum is greater than 95wt.%;
Described carborundum content is greater than 98wt.%;
Described titanium carbide content is greater than 98wt.%;
SiO in described coal gangue
2content is 55% ~ 65wt.%, Al
2o
3content is 25 ~ 35wt.%;
Si in described antioxidant
3n
4si in silicon nitride
3n
4content is greater than 98wt.%;
In metallic silicon power, Si content is greater than 98wt.%;
Described SiO
2siO in super-fine powder
2content is greater than 95wt.%;
In described metallic aluminium powder, the content of Al is greater than 99wt.%.
6. a kind of rapid-curing cutback iron runner castable according to claim 5, is characterized in that, the particle diameter of described Brown Alundum is respectively 6 ~ 10mm, 2 ~ 6mm, 0.5 ~ 2mm and 0.2 ~ 0.5mm, and the mass ratio between above-mentioned four kinds of particle diameters is 5:2:3:4;
The particle diameter of described silicon carbide is less than 0.088mm;
The particle diameter of described titanium carbide is for being less than 0.045mm;
The particle diameter of described coal gangue is for being less than 0.045mm;
Described antioxidant is less than 0.045mm by the particle diameter of silicon nitride, and the particle diameter of metallic silicon power is for being less than 0.045mm;
Described SiO
2the particle diameter of super-fine powder is for being less than 0.001mm;
The particle diameter of described metallic aluminium powder is respectively 0.1 ~ 0.088mm, 0.088 ~ 0.055mm, 0.055 ~ 0.045mm, is less than 0.045mm, and the mass ratio of above-mentioned four kinds of granularity aluminium powders is 1:1:1:1.
7. prepare a method for the iron runner castable of rapid-curing cutback described in claim 2, comprise the following steps:
According to respective proportioning number, Brown Alundum, silicon carbide, titanium carbide, coal gangue, antioxidant, pure calcium aluminate cement, SILICA FUME, detonation suppressor and water reducer are put into machine,massing and stirs 3 ~ 5min, thus obtain uniform mould material.
8. use a method for the iron runner castable of rapid-curing cutback described in claim 2, comprise the following steps:
In mould material, add the water of mould material total mass 3 ~ 4wt.%, stir 1 ~ 2min in machine,massing after, can carry out building use by laying bricks or stones;
At 500 ~ 600 DEG C, toast 2 ~ 3h after building by laying bricks or stones, logical iron operation can be carried out.
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| CN104987092A (en) * | 2015-07-05 | 2015-10-21 | 石倩文 | Preparation process of refractory castable |
| CN104987093A (en) * | 2015-07-05 | 2015-10-21 | 石倩文 | Preparing method for high-performance pouring material |
| CN112458335A (en) * | 2020-11-05 | 2021-03-09 | 泉州市东起汽车零部件有限公司 | High-wear-resistance explosion-proof cylinder sleeve and processing technology thereof |
| CN116768611A (en) * | 2023-06-25 | 2023-09-19 | 巩义市兴平耐火材料有限公司 | Al containing composite antioxidant 2 O 3 SiC-C iron runner castable and preparation method thereof |
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| CN1746135A (en) * | 2005-07-19 | 2006-03-15 | 中国地质大学（北京） | Fire-proof pouring material of iron tap channel of blast-furnace and production thereof |
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| CN112458335A (en) * | 2020-11-05 | 2021-03-09 | 泉州市东起汽车零部件有限公司 | High-wear-resistance explosion-proof cylinder sleeve and processing technology thereof |
| CN116768611A (en) * | 2023-06-25 | 2023-09-19 | 巩义市兴平耐火材料有限公司 | Al containing composite antioxidant 2 O 3 SiC-C iron runner castable and preparation method thereof |
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