- 专利标题： System and method for fluidized bed reduction of powdered iron ore
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申请号： US15109393申请日： 2014-12-30
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公开(公告)号： US10233510B2公开(公告)日： 2019-03-19
- 发明人: Qingshan Zhu , Chuanlin Fan , Hongzhong Li , Zhaohui Xie , Wenheng Mu , Cunhu Wang , Xingang Jiao
- 申请人： INSTITUTE OF PROCESS ENGINEERING, CHINESE ACADEMY OF SCIENCE , BEIJING ZHONGKAIHONGDE TECHNOLOGY CO., LTD.
- 申请人地址： CN Beijing CN Beijing
- 专利权人： INSTITUTE OF PROCESS ENGINEERING, CHINESE ACADEMY OF SCIENCES,BEJING ZHONGKAIHONGDE TECHNOLOGY CO., LTD.
- 当前专利权人： INSTITUTE OF PROCESS ENGINEERING, CHINESE ACADEMY OF SCIENCES,BEJING ZHONGKAIHONGDE TECHNOLOGY CO., LTD.
- 当前专利权人地址： CN Beijing CN Beijing
- 代理商 Gokalp Bayramoglu
- 优先权： CN201310750393 20131231
- 国际申请： PCT/CN2014/095707 WO 20141230
- 国际公布： WO2015/101304 WO 20150709
- 主分类号： C21B13/14
- IPC分类号： C21B13/14 ; C21B13/00 ; F27B15/00 ; F27B15/10 ; F27B15/02 ; F27B15/14 ; F27B15/18
摘要：
A system for fluidized bed reduction of powdered iron ore. Use of high-gas-velocity processing accelerates iron ore reduction speed and greatly improves the gas-treatment capabilities of a unit-cross-sectional fluidized bed. Use of parallel connections involving reduced coal gas lessens the volume of gas passing through a single-stage fluidized bed. Use of serial/parallel-connection processing involving reduced coal gas increases the coal gas utilization rate. The invention achieves the highly-effective reduction of powdered iron ore in a fluidized bed under near-atmospheric pressure. A reduction method based on the present system is also disclosed.
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