The resulting iron ore beneficiation plant, iron is used as the main raw material. Because fine iron concentrate should not be directly added to the ironmaking blast furnace. The flux must be added first, then sintered at a high temperature into a block; or added with a binder to form; or rolled into a small ball and then sintered into pellets; and then smelted into a blast furnace. car video player,car multimedia player,car navigation,car dvd,video car player Shenzhen Zhitong Yingchuang Electronic Technology Co., Ltd. , https://www.visualdriving.com
Blast furnace smelting is a continuous production process that reduces iron ore to pig iron. The iron and some silicon and manganese in the ore in the blast furnace are reduced by coke , and the molten iron is composed of molten iron, and the gangue and limestone in the ore form slag, which are respectively flowed out from the tap hole and the slag outlet of the hearth. . Smelting of pig iron for steel products may be used, or cast iron or blast furnace iron alloy.
The main raw material for steelmaking is pig iron. The carbon and intrinsic impurities (silicon, manganese, phosphorus , sulfur and carbon) contained in pig iron are transferred from iron ore and other raw materials to pig iron during smelting in a blast furnace. The task of steelmaking lies in liquid pig iron. In some ways, some amount of oxygen is introduced to burn these elements, so it is called oxidative smelting. Under certain conditions, oxygen reacts with silicon, manganese, phosphorus, and certain amounts of iron dissolved in pig iron to turn them into oxides. These oxides have a very small solubility in the metal and thus almost all float out and form slag. When the content of each element in the metal has met the specifications through a series of operating steps, and the temperature also meets the requirements of casting, the task of steelmaking is completed. However, steelmaking workshops use steel ingots as the final product. Therefore, the task of steelmaking also includes ingot casting work. To sum up, the overall task of steelmaking production is to refine the pig iron and cast it into steel ingots for further processing in the rolling mill.