The iron parts of the coke oven are one of the main equipment of the coke oven, which is responsible for protecting the bricks of the coke oven body and changing with the temperature of the coke oven. The change in the temperature of the coke oven is the important task of normal production of the coke oven. The furnace protection iron parts include furnace columns, protective plates, furnace door frames, furnace doors, vertical and horizontal braces, etc. Metallurgical equipment includes bulk material conveying equipment, metallurgical heat transfer equipment, evaporation and crystallization equipment, fluid conveying equipment, solid-liquid separation equipment, mixing and stirring equipment, extraction and ion exchange equipment, electrolysis and electrowinning equipment, metallurgical roasting and sintering equipment, gold combustion equipment, drying equipment, smelting equipment, and flue gas dust collection and purification equipment. Metallurgy is the process and process of extracting metals or metal compounds from ores and using various processing methods to produce high-performance metal materials. Metallurgical technology mainly includes pyrometallurgy, hydrometallurgy and electro metallurgical simultaneous metallurgy, which has a long history of development in China, from the Stone Age to the subsequent Bronze Age to the large-scale development of modern iron and steel smelting. The history of human development has integrated the development of metallurgy.