Chemical equation of magnetite ironmaking is: Fe3O4+4CO==high temperature==3Fe+4CO2.
I. Steps of ironmaking
Mining: Iron ore is transformed into powdered concentrate from mining, crushing, milling, magnetic separation, flotation, and re-election. Sintering: concentrate powder through the block to meet the requirements of blast furnace smelting. Ironmaking: The iron in sintered ore and lump ore is reduced and turned into molten iron. Steelmaking: the raw materials (iron and scrap, etc.) in excess of carbon and sulfur, phosphorus and other impurities removed and add the appropriate amount of alloying components, the production of steel.
Continuous casting: continuous cooling of steel with water, condensed into a billet shell, steadily pulled out, cooled by water spray, fully solidified, cut into specified lengths the whole process is to remove impurities, the continuous process of removing impurities and adding the essence of the process.
Two, the precautions of ironmaking
Must wear good labor protection. Familiarize yourself with the operational requirements and follow the steps. Strict implementation of safety regulations, to eliminate unauthorized operation. It is strictly prohibited to stay on the top of the furnace or near the hearth for a long time. It is strictly prohibited to overhaul equipment and facilities in the furnace or near the hearth. It is strictly prohibited to overhaul and repair electrical equipment without disconnecting the power. It is strictly prohibited to stay and rest in the gas area.
It is strictly prohibited to overhaul and repair equipment and facilities in the gas area. It is strictly prohibited to engage in any operation with open flame or high temperature in the gas area. It is strictly prohibited to engage in any unauthorized operation in the gas area. It is strictly prohibited to engage in any unauthorized testing in the gas area. Do not perform any unauthorized maintenance in the gas area.
It is strictly prohibited to engage in any unauthorized construction in the gas area. Any unauthorized disposal in the gas area is strictly prohibited. It is strictly prohibited to engage in any unauthorized alteration in the gas area. It is strictly prohibited to engage in any unauthorized operation or test in the gas area. Any unauthorized testing in the gas area is strictly prohibited.
Uses of Iron
Engines
Pure iron is used to make cores for generators and electric motors, reduced iron powder is used in powder metallurgy, and iron and steel are used in the manufacture of machines and tools. In addition, iron and its compounds are used to make magnets, medicines, inks, pigments, and abrasives.
Industrial
In industry, iron can also be used to make a variety of alloys to improve its strength, hardness, corrosion resistance and electrical conductivity and other properties. It is used in pharmaceuticals, pesticides, powder metallurgy, hot hydrogen generators, gel propellants, combustion activators, catalysts, water-cleaning adsorbents, sintering activators, powder metallurgy products, a variety of mechanical parts products, and cemented carbide material products.
Medical
In the medical field, iron can also be used as a pharmaceutical ingredient for the treatment of some diseases, such as anemia.