The blast furnace smelting with raw material mainly composed of iron ore, fuel (coke) and the flux (limestone) of three parts.

Usually, and iron smelting 1 ton to 1.5-2.0 tonnes of iron ore, 0.4-0.6 tons coke, 0.2-0.4 tons of flux, total need 2-3 tons of raw materials.In order to ensure the continuity of the blast furnace production, requires a sufficient number of raw material supply.

The blast furnace smelting is the continuous production process of iron ore reduction of pig iron.Solid raw materials such as iron ore, coke and flux in accordance with the provisions, proportioning by top partial into blast furnace, charging device and keep the throat, is a certain height.The coke and ore formation of alternating layered structure in the oven.Ore stone falling step by step in the process of reduction, molten iron and slag, gathered in the hearth, released from slag iron mouth, mouth on a regular basi