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众所周知 ,转炉炼钢在吹炼过程中是无法进行深脱硫的 ,而且转炉炼钢的脱硫是以破坏转炉炉衬和降低炉衬使用寿命为代价的 ,而最终钢水中的硫含量仍然很难降下来 ,无法保证为连铸提供合格的钢水 ,这就限制了连铸正常生产 ,对扩大钢坯品种十分不利。铁水预处理 ,即铁水脱硫工艺就
As we all know, BOF steelmaking process is unable to carry out deep desulfurization, and converter steelmaking desulfurization is to destroy the lining of the converter and reduce the service life of the lining at the cost of the final molten steel in the sulfur content is still very difficult to come down, Can not guarantee to provide qualified molten steel for continuous casting, which limits the normal production of continuous casting, to expand the billets species is very unfavorable. Hot metal pretreatment, that is hot metal desulfurization process