Characteristics of acid refractories
A large amount of brick and clay brick. Brick is siliceous products containing more than 93% SiO2, the use of raw materials with silica, silica and other waste. The silica acid slag erosion ability is strong, but vulnerable to the erosion of basic slag, its softening temperature is very high, close to the fire, the volume does not shrink after repeated burning, or even a slight swelling, but poor thermal shock resistance. The brick is mainly used for thermal equipment of glass furnace, coke oven, acid furnace etc.. Clay brick contains 30% ~ 46% alumina. It uses fireclay as the main raw material, its refractory degree is 1580~1770 degrees, and its thermal shock resistance is good. It belongs to weak acid refractory material. It has corrosion resistance and wide application to acid slag. It is the largest production refractory material.