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硫是钢中的有害元素。近代工业的发展,对钢的质量提出了愈来愈高的要求,因此对钢中硫含量的要求也就愈来愈苛刻。而炼钢过程的脱硫能力往往是有限的,一般平炉、转炉的脱硫能力为30％左右,要将硫含量为0.04％左右的铁水冶炼深冲钢,焊条钢、吕班德钢等钢种就相当困难。因而,铁水炉外脱硫处理就是冶炼优质钢的重要手段之一。铁水炉外脱硫技术虽然只有十几年的历史,但近年来发展非常迅速。它是提高钢的质量、改善炼铁和炼钢的技术经济指标和适
Sulfur is a harmful element in steel. The development of modern industry, the higher the quality of steel put forward higher requirements, so the sulfur content of steel requirements will become more demanding. The desulfurization capacity of the steelmaking process is often limited, usually open hearth furnace, desulfurization capacity of the converter is about 30%, to the sulfur content of about 0.04% of the deep-drawn hot metal smelting, welding rod steel, steel and other Lu Bandan steel Very difficult. Therefore, hot metal outside the desulfurization furnace smelting is one of the important means of quality steel. Hot metal outside the furnace desulfurization technology, although only a dozen years of history, but in recent years the development is very rapid. It is to improve the quality of steel to improve the technical and economic indicators of iron and steelmaking and fitness