Preparation method of waterless stemming used for maintaining blast furnace hearth
A technology of blister mud and blast furnace furnace, which is applied in the field of refractory materials for blast furnaces. It can solve the problems of environmental pollution, poor performance of blast furnace mud, and high production cost, and achieve the effects of good opening performance, not easy to agglomerate, and improved fluidity
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Embodiment 1
[0028] A kind of preparation method of the anhydrous foam mud that is used to maintain blast furnace hearth of the present embodiment, its specific steps are as follows:
[0029] (1) Preparation of refractory aggregate:
[0030] Weigh 13 parts of titanium dioxide, 4 parts of titanium carbide, 23 parts of corundum, 16 parts of silicon carbide, 35 parts of mullite, 6 parts of calcium-free chromium slag, 7 parts of blast furnace gas ash and 10 parts of coke according to the parts by mass. The particle size of titanium, corundum, silicon carbide, mullite and calcium-free chromium slag is required to be less than 1mm, and they are added to the mixer in sequence and mixed for 11 minutes to obtain refractory aggregate;
[0031] (2) Preparation of binder:
[0032] a) Weigh 43 parts of asphalt and 5 parts of hydrogenated terphenyl in parts by mass, add the asphalt and hydrogenated terphenyl to the reaction kettle in turn, and stir and mix at a temperature of 58°C for 18 minutes;
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Embodiment 2
[0038] A kind of preparation method of the anhydrous foam mud that is used to maintain blast furnace hearth of the present embodiment, its specific steps are as follows:
[0039] (1) Preparation of refractory aggregate:
[0040]Weigh 12 parts of titanium dioxide, 5 parts of titanium carbide, 20 parts of corundum, 18 parts of silicon carbide, 30 parts of mullite, 7 parts of calcium-free chromium slag, 6 parts of blast furnace gas ash and 11 parts of coke, and add them in sequence In the mixer, mix for 10 minutes to obtain refractory aggregate;
[0041] (2) Preparation of binder:
[0042] a) Weigh 40 parts of asphalt and 6 parts of hydrogenated terphenyl in parts by mass, add the asphalt and hydrogenated terphenyl to the reaction kettle in turn, stir and mix at a temperature of 55°C for 18 minutes;
[0043] b) Weigh 10 parts of silicone resin, 11 parts of furan resin and 11 parts of melamine formaldehyde resin in parts by mass, and control the heating rate of the reactor in st...
Embodiment 3
[0048] A kind of preparation method of the anhydrous foam mud that is used to maintain blast furnace hearth of the present embodiment, its specific steps are as follows:
[0049] (1) Preparation of refractory aggregate:
[0050] Weigh 14 parts of titanium dioxide, 3 parts of titanium carbide, 25 parts of corundum, 15 parts of silicon carbide, 38 parts of mullite, 5 parts of calcium-free chromium slag, 8 parts of blast furnace gas ash and 9 parts of coke, and add them in sequence In the mixer, mix for 12 minutes to obtain refractory aggregate;
[0051] (2) Preparation of binder:
[0052] a) Weigh 50 parts of asphalt and 4 parts of hydrogenated terphenyls in parts by mass, add the asphalt and hydrogenated terphenyls to the reaction kettle in turn, and stir and mix at a temperature of 60°C for 18 minutes;
[0053] b) Weigh 12 parts of silicone resin, 8 parts of furan resin and 15 parts of melamine formaldehyde resin in parts by mass, and control the heating rate of the reactor ...
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Abstract
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