The position of the grate cooler is special, the flue gas composition is complex, the temperature is high, the wind speed is high, and the dust in the flue gas is mostly small particles of cement clinker, which are not only large in volume but also high in hardness, and cause serious erosion and erosion of refractory materials. Therefore, the phenomenon of over-temperature or burn-through in the grate cooler is very common, so the reasonable selection of refractory materials in this part and the construction quality are very important. The prefabricated parts in this part usually use high alumina bauxite, silicon carbide, etc. as aggregates, use calcium aluminate cement as binder, add ultrafine powder, admixtures, and add a certain amount of heat-resistant steel fibers, pouring according to low cement According to the construction specification, the prefabricated parts are made into suitable shapes.
The shape, size and structural form of prefabricated parts are related to their use parts. For the prefabricated parts for the grate cooler low wall, in order to improve the stability of the low wall structure, the upper and lower surfaces of each prefabricated part are respectively provided with grooves or tongues. Through the combination between the tongue and the groove, the sliding between the blocks is restricted, and the integrity and stability of the masonry structure are improved. For the top of the grate cooler, especially in a high temperature area, the prefabricated parts can be welded or bolted to the top through anchors, or they can be directly connected by hanging on the steel plate.
