【摘要】 炼钢生铁中硅素主要来自焦炭灰分中的SiO₂。鞍钢炼铁厂11号高炉（2025 m³）结合原燃料的实际情况,采用降低焦比、选用合适的喷吹配煤比,增大喷吹量、降低理论燃烧温度、提高风温、提高煤气利用率、提高铁水质量等措施来降低生铁中硅素。同时,还保证了炼钢所需的铁水温度和低硫要求。更多还原

【Abstract】 Silicon content in hot metal mainly comes from SiO₂ in cok ash. AccordinS to real stateof raw materials, following measures to lowcr Si content are adopted on No.11 blast furnaceat Anshan Iron and Steel Co.: reduce cokc rate, adequate composition of injecting coal, increasethe rate of coal injection, lower TFT, raise hot blast temperature, inprove gas utilization andiron quality. Meanwhile, the temperature and sulphur content of hot metal are kept satisfactoryfor steelmaking.更多还原