专利名称：PRODUCTION OF PIG IRON 发明人：IWANAGA YUJI,TAKATANI KOJI 申请号：JP5539886
申请日：19860313
公开号：JPS62214115A
公开日：
19870919
专利内容由知识产权出版社提供
摘要：PURPOSE:To obtain a pig iron without using a coke furnace, etc., and without receiving the limitation for raw materials by bringing a rod-shaped molding of raw material powder contg. powdery iron oxide into contact, in counter current, with the high-temp. reducing gas generated in a melting and gasifying furnace in the lower part of a molding machine and melting the reduced iron formed in such a manner in the above-mentioned furnace. CONSTITUTION:Pulverized coal 15, powdery iron ore 16 and binder 17 are mixed 11 and the mixture is supplied 13, 10, 12 into a charging hopper 19. After the mixture in the hopper 9 is press-molded by the molding machine 7, the molding is let off in the form of a rod continuously downward from the lower part of the machine so as to descend in a transfer pipe 8. On the other hand, the high-temp. reducing gas which consists essentially of CO and H2 and is generated by the combustion reaction of O2 and pulverized coal respectively fed 2 and 3 from the bottom of the melting and gasifying furnace 1 is raised in the pipe 8 from the upper part of the furnace. The rod-shaped molding 18 and the reducing gas are brought into contact, in counter current, with each other in the pipe 8 to soften, melt and calcine the coal in the molding 18 as well as to progress the reduction reaction of the powder ore. The powder ore is converted to the reduced iron during the time when the powder ore in the molding 18 arrives at the
reaction rodfurnace 1 in succession to the above. The pig iron and slag formed in the furnace 1 are led 6 to the outside of the furnace.
申请人：SUMITOMO METAL IND LTD
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