1 现状近几年来,高炉铁水含硅量在0.58%左右,比外厂先进的炼铁高炉含硅量高0.15%以上。近几年炼铁厂生铁含硅情况如表1所示。为了完成2003年公司高炉年产铁190万吨,入炉焦比399kg/t目标计划,降低铁水中的含硅量是很重要的措施之一。为了更进 1 Status In recent years, the silicon content of blast furnace hot metal is about 0.58%, which is 0.15% higher than that of the advanced blast furnace of the outside factory. In recent years iron smelting pig iron silicon situation shown in Table 1. In order to complete the company’s annual output of 1.9 million tons of blast furnace in 2003 and 399 kg / t of coal to coke ratio, it is very important to reduce the amount of silicon in molten iron. In order to go further