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1. 发明申请

US20060037436A1 Smelting process for the production of iron 有权
标题翻译：冶炼生产铁的过程
公开(公告)号：US20060037436A1
公开(公告)日：2006-02-23
申请号：US10542721
申请日：2004-01-01
申请人： Colette Ng , Brian Baldock , Giuseppe Sofra , Stephen Hughes , Robert Matusewicz , Ross McCelland , David Sherrington
发明人： Colette Ng , Brian Baldock , Giuseppe Sofra , Stephen Hughes , Robert Matusewicz , Ross McCelland , David Sherrington
IPC分类号： C21C5/30
CPC分类号： C22B5/10 , C21B3/06 , C21B13/0013 , C21B2400/022 , C21C5/562 , C22B7/04 , Y02P10/136 , Y02P10/216 , Y02W30/543
摘要： A process for producing iron metal and slag by smelting iron-containing source material, having iron present as oxide and/or a partially metallised state, in a reactor containing a molten bath comprising or having a slag phase, utilises injection of fuel/reductant and oxygen-containing gas into the slag, by at least one top-submerged lance, to generate heating and reducing conditions in at least one reducing region in the bath. The source material is fed to the reactor, together with additional reductant and with flux, at or adjacent to the at least one reducing region, to subject the source material to smelting reduction which generates combustion gases comprising CO and H2. The rates of injection of the oxygen-containing gas and fuel/reductant by said at least one lance are controlled to achieve required, sufficient reducing conditions; and, in the reactor above the bath, the combustion gases generated by the smelting are post-combusted. The controlling of step (c) is conducted to result in the injected oxygen-containing gas having an oxygen content of from about 40 volume % to about 100 volume % and sufficient for a degree of combustion in excess of 60 wt % of the fuel/reductant injected by the at least one lance.
摘要翻译：通过熔炼含铁源材料（在含有或具有渣相的熔池的反应器中）以含氧化物和/或部分金属化状态存在的铁来生产铁金属和炉渣的方法利用燃料/还原剂的注入和通过至少一个顶部浸没的喷枪将含氧气体进入炉渣，以在浴中的至少一个还原区域中产生加热和还原条件。源材料与附加的还原剂和助熔剂一起在至少一个还原区域或邻近的至少一个还原区域内进料到反应器中，以使源材料进行熔炼还原，其产生包含CO和H 2的燃烧气体， SUB>。控制由所述至少一根喷枪喷射含氧气体和燃料/还原剂的速率以达到所需的足够的还原条件; 并且在浴池上方的反应器中，由熔炼产生的燃烧气体后燃烧。进行步骤（c）的控制以产生氧含量为约40体积％至约100体积％并且足以使燃烧程度超过燃料/燃料的60重量％还原剂由至少一根喷枪注射。

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