Refractory Bricks Manufacturer

With the progress of the steel industry in various countries in the world, the blast furnace is developing towards large-scale, high-efficiency and longevity. And gradually adopt new smelting technologies such as oxygen-enriched coal injection, high air temperature operation, high pressure furnace top and so on. The working conditions of the blast furnace lining have undergone major changes, and its service life has been reduced more, generally only 5 to 6 years. Especially in the lower part of the blast furnace body, furnace waist and furnace belly, the refractory lining’s service life is much shorter. In order to adapt to this development, refractory materials for blast furnaces have also undergone major changes. New long-life, high-efficiency refractory materials have been gradually applied, and the life of blast furnaces has gradually increased. Refractories Lining of Blast Furnace Refractory for lining of blast furnace The refractory materials commonly used in lini

In the working lining of various kilns, the kiln mouth and coal injection nozzle of the new dry-process cement kiln are subject to strong high-temperature seismic erosion and serious wear and tear, and high-quality uncertain refractory materials are required. Generally, high temperature castable refractory for cement kiln contains corundum, mullite, andalusite, silicon carbide minerals. Next, several high temperature resistant components of high temperature castable refractory will be analyzed. High Quality H igh T emperature C astable R efractory Corundum C omponents Corundum is divided into sintered corundum and fused corundum. Among them, fused corundum is a product obtained by melting alumina or bauxite in an electric furnace and then cooling. The fused corundum has large grains, high density, low porosity and high hardness. The sintered corundum has small grains, many pores and small hardness, but it has good thermal shock resistance. Generally speaking, cor