Environment-friendly stemming for blast furnace taphole and preparation method thereof
An environmentally friendly, tap hole technology, applied in blast furnaces, furnace types, blast furnace details, etc., can solve problems such as affecting employees' physical and mental health, adverse effects on production and use, worsening working environment, etc., to achieve environmental protection and reduce tar components. content, the effect of significant social benefits
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Embodiment 1
[0030] The raw material composition of environment-friendly taphole clay for blast furnace taphole:
[0031] 15% of 1-3mm high bauxite, 20% of 0.2-1mm high bauxite, 3% of modified phenolic resin powder, 2% of high-temperature asphalt, 8% of inorganic phosphate (aluminum dihydrogen phosphate), 15% of silicon carbide, Coke powder 19%, sericite 8%, kyanite 4%, tar 6%.
[0032] The preparation method of the environment-friendly taphole clay for blast furnace taphole: Weigh various raw materials according to the weight percentage ratio of the environment-friendly taphole clay for blast furnace taphole, place the weighed various raw materials in a heating In the mixer, stir and mix under the condition of 60-70°C. The stirring speed of the mixer is 12-16 rpm, and the stirring time is 25-35min. After mixing evenly, the mixture is pressed into shape with a friction brick press.
Embodiment 2
[0034] The raw material composition of environment-friendly taphole clay for blast furnace taphole:
[0035] 1~3mm high bauxite 20%, 0.2~1mm high bauxite 22%, modified phenolic resin powder 5%, high temperature asphalt 3%, inorganic phosphate (aluminum dihydrogen phosphate) 5%, silicon carbide 12%, Coke powder 15%, sericite 10%, kyanite 5%, tar 3%.
[0036] The preparation method of the environment-friendly gun clay for the blast furnace taphole: it is basically the same as the preparation method of the environment-friendly gun clay in Example 1, the difference is that the temperature of the heating mixer is 50~60°C, and the stirring speed of the mixer is 14~ 16 rpm, stirring time is 30-35min.
Embodiment 3
[0038] The raw material composition of environment-friendly taphole clay for blast furnace taphole:
[0039] 1-3mm high bauxite 25%, 0.2-1mm high bauxite 25%, modified phenolic resin powder 4%, high temperature asphalt 1%, inorganic phosphate (aluminum dihydrogen phosphate) 7%, silicon carbide 10%, Coke powder 10%, sericite 5%, kyanite 8%, tar 5%.
[0040] The preparation method of the environment-friendly gun clay for blast furnace taphole: it is basically the same as the preparation method of the environment-friendly gun clay in Example 1, the difference is that the temperature of the heating mixer is 70~80 ℃, and the stirring speed of the mixer is 12~ 14 rpm, stirring time is 28-32min.
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