The steelmaking production system includes equipment such as converters, electric furnaces, out-of-furnace refining furnaces, ladle and tundish. In electric furnaces, dry vibrating materials, prefabricated or cast-in-situ furnace covers, or furnace covers: triangles and other parts have good fire-resistant use effects; fused magnesia manufacturers, in converters and electric furnaces, generally use fire-resistant when damaged Spray paint for proper repair, the methods include manual patching, wet, dry or flame spraying and slag splashing to protect the furnace. In the converter, the traditional slag splashing protection technology is generally used, and the furnace age can reach nearly 10,000 times; there are many types of refining furnaces outside the furnace, and the corresponding tube linings of the RH and DH method degassing devices generally use high The aluminum refractory castable is poured into a large area, and the service life is about 20 to 80 times. Ladles and tundishes are important auxiliary industrial equipment of steelmaking furnaces, as well as thermal equipment that consumes refractory materials.
The iron system includes sintering, coking, blast furnace and its auxiliary equipment. The ignition furnace of the belt sintering machine is made on-site with refractory plastic and clay combined with refractory castable, or prefabricated with phosphoric acid refractory castable, and its service life is 3 to 6 years. When the linear ignition device is used, the furnace top pressure is more and the working conditions of the furnace become better. Lightweight *** refractory castables or refractory fibers and their products can be used as linings to obtain better results.