Blast furnace-iron making
MET masters complete set of mature and advanced blast furnace iron making technologies, with the development of iron making technology and market demand changes, has accumulated rich experience of turnkey iron making project. MET keep constant research and development input based on mature process and technology, to optimize iron making processes and technologies and the production operation. Through lots of EPC engineering of iron making project, We actively listen to customer’s feedback, combining with actual needs of each customer, more customized turnkey iron making project solution is being providing to the customers.
Iron making, the first step in making steel, is the process of producing iron from iron ore through a series of chemical and physical processes. The most common method of iron production is blast furnace iron making, which involves the use of a blast furnace. Before the iron ore is charged to the furnace, the iron ore usually needs iron processing, such as crushing, sintering, upgrading and pelletizing.
Blast furnaces operate on the principle of chemical reduction whereby carbon monoxide converts iron oxides to elemental iron. Blast furnaces differ from bloomeries and reverberatory furnaces in that in a blast furnace, flue gas is in direct contact with the ore and iron, allowing carbon monoxide to diffuse into the ore and reduce the iron oxide.
The blast furnace uses heat to convert iron oxides into liquid iron, which can then be applied for a variety of industrial purposes. The blast furnace is a brick-lined, stainless steel stack, which is heated using pre-heated air. During the iron production process, iron ore, fuel (coke), and slag making flux (limestone) are loaded from the top of a furnace in a specific ratio, and preheated air is blown into the tuyere located at the lower part of the furnace along the circumference of the furnace. The chemical reactions take place throughout the furnace as the material falls downward. The main products of blast furnace smelting are pig iron and ferroalloy, and the by-products are slag, gas and furnace dust.
