论文部分内容阅读
一、前言我厂有两座100t碱性顶吹氧重油平炉。主要生产优质碳素结构钢和少量低合金高强度钢及普通碳素钢。顶吹氧平炉具有转炉的某些特点,熔炼时间短,降碳速度快。但是,由于铁水含硫高达0.070～0.120％;其它原材料来源广泛,成分复杂,加之料场窄小,加工困难,入炉原材料质量不高,导致平炉化完硫波动在0.060～0.100％之间,经常在0.070％以上,往往因钢中硫高而延长熔炼时间或造成钢种改判;钢中氧化物、硫化物
First, the foreword I plant has two 100t alkaline top heavy oil oxygen hearth furnace. The main production of high quality carbon structural steel and a small amount of low-alloy high-strength steel and ordinary carbon steel. Top blowing oxygen furnace with some of the characteristics of the converter, melting time is short, carbon reduction speed. However, since the hot metal has sulfur content as high as 0.070 to 0.120%, the other raw materials have a wide range of sources and complex compositions. In addition, since the material field is narrow and the processing is difficult, the quality of raw materials into the furnace is not high, Often more than 0.070%, often due to high sulfur steel and extend the melting time or cause the steel to change; steel oxide, sulfide