Method for smelting and reducing iron ores through converter steelmaking system

The invention discloses a method for smelting and reducing iron ores through a converter steelmaking system and belongs to the technical field of iron and steel metallurgy. After the converter slag splashing converter protection process, molten iron is mixed into a converter firstly, then the iron ores and a slag forming agent are added in batches, wherein the adopted slag forming agent comprises limestone, dolomite and lime; and oxygen-enriched air and pulverized coal are simultaneously top-blown through an oxygen lance, the thickness of foaming slag is controlled by adjusting the charging speed, and the iron ores are smelted and reduced. The method is based on the modern mature technology of oxygen converters, the iron ores are smelted and reduced in the converter process, and the problems of too fast lining erosion and high energy consumption cost existing in iron ore direct smelting and reducing at present can be solved. 本发明公开了种利用转炉炼钢系统熔融还原铁矿石的方法，属于钢铁冶金技术领域。本发明在转炉溅渣护炉后，先向转炉中兑入铁水，再分批次加入铁矿石和造渣剂，所用的造渣剂为石灰石、白