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High wear resistant silicon carbide ramming material
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High wear resistant silicon carbide ramming material

Product description

Silicon carbide ramming material

The ramming material of silicon carbide for gasifier is made up of high-purity large particle silicon carbide, corundum ultrafine powder, high-temperature colloidal binder and curing agent under specific conditions. It is a kind of pneumatic ramming material, which can be solidified in the air, so the construction is very convenient, and there is no need for additional oven drying, reducing the cost of inspection and maintenance of gasifier. The formation of its strength is due to the dehydration, concentration and polymerization of the colloidal binder at a certain temperature, and the chemical combination and ceramic combination with silicon carbide, corundum and micropowder, forming a phosphate bonded matrix. At high temperature, the silicon powder can produce ceramic bond under the sintering temperature lower than corundum, zircon corundum, silicon nitride and other refractory materials. The composite phase formed enhances the strength of the lining, prolongs the service life of the gasifier lining, and can withstand up to 120-125 thermal and cold changes between 20 ℃ - 1050 ℃. The reasonable ratio of continuous particles reduces the porosity of the lining and improves the corrosion resistance, penetration resistance and wear resistance. It has been proved that gsj-75 silicon carbide ramming material and caj-3.1 chrome corundum ramming material are ideal lining materials for gasifier furnace and gas transmission pipeline. Among them, silicon carbide ramming material and its application have obtained national invention patent.