发明授权
- 专利标题: Process for the direct reduction of iron ores
- 专利标题(中): 直接还原铁矿石的工艺
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申请号: US94335申请日: 1987-09-08
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公开(公告)号: US4793856A公开(公告)日: 1988-12-27
- 发明人: J. Federico Price-Falcon , Hector Lopez-Ramos
- 申请人: J. Federico Price-Falcon , Hector Lopez-Ramos
- 申请人地址: MXX Guerrero y Munich
- 专利权人: Hylsa, S.A. de C.V.
- 当前专利权人: Hylsa, S.A. de C.V.
- 当前专利权人地址: MXX Guerrero y Munich
- 主分类号: C21B13/02
- IPC分类号: C21B13/02
摘要:
A method for the gaseous reduction of particulate iron ore to sponge iron product in a vertical shaft reactor having a reduction zone in the upper portion thereof, a cooling zone in the lower portion thereof and an intermediate zone between the reduction and cooling zones. In order to reduce the tendency of the hot sponge iron to sinter and agglomerate, and stick to the walls of the reactor, and to give a more uniform product, a cool gas stream is introduced into the intermediate zone and caused to flow downwardly along the wall of the intermediate zone to cool the peripheral portion of the body of reduced ore flowing from the reduction zone through the intermediate zone.
公开/授权文献
- US6077325A Method of adding coal combustion enhancer to blast furnace 公开/授权日:2000-06-20
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