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Blast furnace Process engineering and chemistry A blast furnace is a metallurgical furnace used to smelt and produce industrial metals, usually pig iron but also other metals such as lead or copper. Blast is the provision of combustion air above atmospheric pressure. [1]In a blast furnace, fuel (cok
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Development of secondary refining technologyThe secondary refining has the functions of making the temperature and composition of the molten steel uniform, adjusting the composition of the molten steel, degassing (decarburization, denitrification, dehydrogenation), deoxidation, desulfurization, deph
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Secondary refining refers to the refining outside the traditional steelmaking furnace (such as open hearth, refined furnace, electric furnace). The main tasks of refining are deoxidation, desulfurization, dephosphorization, decarburization, removal of inclusions, alloying and fine-tuning of composit
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1. The cost competitiveness of electric furnace steelmaking is not strongSince 2000, the proportion of my country's electric furnace steel output has fallen from the highest 17.6% in 2003 to 6.1% in 2015, and the development speed is obviously lagging behind that of converter steelmaking. The bigges
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Through our refining technology, the efficiency and automation level of LF has been fully utilized.The LF ladle refining furnace is currently the most widely used external refining equipment. It is used to refine the molten steel in the primary furnace, and can adjust the temperature of the molten s
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