Submerged arc furnace is also called electric arc furnace or resistance electric furnace. It is mainly used to reduce raw materials such as smelting ores, carbonaceous reducing agents and solvents. It mainly produces ferrosilicon , ferromanganese, ferrochromium, tungsten, silicomanganese and other ferroalloys, which are important industrial raw materials in the metallurgical industry and calcium carbide and other chemical raw materials. Its working characteristic is to use carbonaceous or magnesia refractory materials as furnace lining and self-cultivation electrodes. The electrode is inserted into the furnace charge for submerged arc operation. It uses the energy and current of the electric arc to pass through the charge. The energy is generated due to the resistance of the charge to smelt the metal. The material is continuously fed, and the iron slag is intermittently tapped. It is an industrial electric furnace with continuous action.
Main categories and uses of submerged arc furnaces
Industrial waste heat refers to the large amount of waste heat generated in the industrial production lines of steel, petrochemical, building materials, and non-ferrous metals . The waste heat power generation technology refers to the technology that uses the high-grade heat of the enterprise to recover and convert it into electric power for the enterprise’s own use. China has always taken the use of waste heat power generation as one of the important measures to save energy and reduce consumption and realize cyclical development, and has given strong support. At present, the application field of waste heat power generation technology in China is continuously expanding. However, in the fields of ferroalloy and calcium carbide , flue gas waste heat and other The waste heat comprehensive recovery power generation technology is still lacking.