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1. 发明申请

WO1993006251A1 PROCESS FOR PRODUCTION OF IRON 审中-公开
标题翻译：生产铁的工艺
公开(公告)号：WO1993006251A1
公开(公告)日：1993-04-01
申请号：PCT/AU1992000489
申请日：1992-09-17
申请人： AUSMELT PTY. LTD. , FLOYD, John, Millice , CHARD, Ian, Leonard , BALDOCK, Brian, Ross
发明人： AUSMELT PTY. LTD.
IPC分类号： C21B11/08
CPC分类号： C21B13/0026 , Y02P10/136 , Y10S75/957 , Y10S75/961 , Y10S75/962
摘要： A process for smelting iron-containing source material in a reactor containing a slag bath, comprises generating heating and reducing conditions in at least one reducing region of the bath by injection of fuel/reductant and oxygen-containing gas by at least one top submerged lance. The source material is fed to the reactor together with additional reductant and with flux at or adjacent the at least one reducing region so as to be subjected to smelting reduction, using coal as the additional reductant. The rates of injection of oxygen and fuel/reductant are controlled to achieve required, sufficient reducing conditions by providing the injected gas with an oxygen content of from about 40 % to about 100 % sufficient for a degree of combustion of the fuel/reductant of from about 40 % to about 50 %; and wherein CO and H2 generated by the smelting operation, as well as carbon dust carried out of the bath by combustion gases, are subjected to post-combustion in the reactor, enabling efficient heating of the bath whilst preventing re-oxidisation of the bath contents.
摘要翻译：在含有炉渣浴的反应器中熔炼含铁源材料的方法包括通过至少一个顶部浸没式喷枪注入燃料/还原剂和含氧气体来在浴的至少一个还原区域中产生加热和还原条件。源材料与另外的还原剂一起加入到反应器中，并且在至少一个还原区域附近与助熔剂一起进料到反应器中，以便使用煤作为另外的还原剂进行熔炼还原。控制氧气和燃料/还原剂的注入速率以通过提供约40％至约100％的氧气含量足以使燃料/还原剂的燃烧程度达到所需的足够的还原条件约40％至约50％; 并且其中通过冶炼操作产生的CO和H2以及通过燃烧气体从浴中进行的碳尘在反应器中进行后燃烧，使得能够有效地加热浴，同时防止浴内容物再次氧化。

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