1985年12月11～13日冶金部科技司与日本住友金属公司在北京召开了中日炼铁技术讨论会。现将住友专家在会上所谈炼铁技术介绍于下: 1.低硅生铁冶炼与炉前脱硅的经济性问题炼钢为了脱磷要求降硅至0.15%(对少渣或无渣炼钢有利),住友专家认为炉内冶炼应尽量降硅比较经济,但目前住友高炉最多只能将硅降到0.2%,在满足不了要求时才进行炉前脱硅。炉前脱硅时要控制炉渣碱度1.7～2.0与脱硅剂用量。为防止泡沫渣需另加防泡剂稻壳与锯末于罐内。脱硅剂用烧 December 1985 December 11 ~ 13 Ministry of Metallurgical Division and Japan Sumitomo Metal Co., Ltd. held in Beijing, China Iron and Steel Technology Seminar. Now Sumitomo experts at the meeting on the iron introduced in the next technology: 1. Low-silicon pig iron smelting and removal of silicon before the economic problems Steel dephosphorization requirements of silicon to 0.15% (less slag or slag refining Steel favorable), Sumitomo experts believe that the furnace smelting should be more economical to reduce silicon, but the current Sumitomo blast furnace can only reduce the silicon to 0.2%, can not meet the requirements before the furnace desilication. Desiliconization furnace to control the slag alkalinity 1.7 ~ 2.0 and the amount of desilication agent. To prevent foaming slag need additional anti-foam rice husk and sawdust in the tank. Desiliconizer with burning