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1980年我国钢产量中,转炉钢占48.76%(其中氧气顶吹转炉钢占40.76%,侧吹转炉钢占8%),平炉钢占32%,电炉钢占19%。炼钢最好采用“最小渣量炼钢法”,就是在炼钢前对铁水进行脱硅、脱硫处理。脱硅、脱硫,一般在铁水罐或混铁炉内向铁水中分别加氧化铁皮(约32公斤/吨)、熔剂(1公斤/吨,可以用萤石)和苏打(25～30公斤/吨),并用氮气搅拌,使铁水含硅、硫量都可以降低60～75%。这样既可提高炼钢炉炉衬寿命,又可提高收得率0.5～0.7%。苏打还可以用
In 1980, China’s steel production accounted for 48.76% of the total amount of converter steel (including 40.76% of oxygen top-blown converter steel and 8% of side blown converter steel), with 32% of open hearth steel and 19% of electric furnace steel. Steel is best to use “the smallest amount of slag steelmaking method,” that is, before the molten steel desiliconization, desulfurization. Desiliconization and desulfurization are generally carried out by adding iron oxide scale (about 32 kg / t), flux (1 kg / t, fluorite) and soda (25-30 kg / t) to the molten iron in a hot metal or mixed iron furnace, , And stirred with nitrogen, the molten iron containing silicon, sulfur can be reduced by 60 to 75%. This will not only improve the furnace lining life, but also improve the yield 0.5 to 0.7%. Soda can also be used