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Tel : 0086-021-60880117
Question :What is Blast Furnace？
Answer:
BF (BF) is the main steel equipment, the use of iron ore as a main raw material. These tall, shaft-like structures and equipment in a continuous process heat will be separated from the iron ore out, thereby producing molten iron (pig iron), used to transform a basic oxygen furnace for steel as the primary input materials, iron ore stone, coke and limestone is injected at the top of the blast furnace. Preheated air blown into the furnace in the lower layer, so as to maintain the reaction include coke, including heat, and release of carbon monoxide (CO). This material falls on the bottom of the furnace, and a regular tapped - which generates carbon dioxide (CO2) and molten iron ore (iron oxide) from the reaction. Blast furnace preheated injection material heat the ore becomes small, and the limestone is converted to carbon dioxide and lime. This molten iron impurities react to form a slag is removed. Blast general annual capacity of 1 million -500 million tons, and in general a few years after the operation needs to be maintained.