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本课题研制成功30吨铁水罐中喷吹石灰系复合脱硫剂进行铁水炉外脱硫。可使高炉冶炼高碱金属原料,采用酸渣排碱,高炉顺行,技术经济指标改善。高硫铁水炉外脱硫得到优质生铁。形成高炉用酸渣冶炼高碱金属原料及炉外脱硫新工艺。 这种新工艺已经经过连续性工业试验并转入生产使用。到1985年3月底已处理铁水5万余吨。试验及连续生产表明:高炉炉渣碱度(CaO/SiO_2)由1.05降至0.95～1.0,炉渣排碱率由50％提高到75％以上,焦比下降8～13公斤/吨铁。日产量提高10～18吨。增
The successful development of this project 30 tons of hot metal ladle spray lime composite desulfurization agent for hot metal outside the desulfurization. High-alkali metal raw materials can be smelted blast furnace, the use of acid residue row alkali, blast furnace along the line, technical and economic indicators to improve. High-sulfur hot metal outside the desulfurization get high-quality pig iron. The formation of a blast furnace sour slag smelting high alkali metal raw materials and furnace outside the new desulfurization process. This new process has been through continuous industrial testing and transferred to production. By the end of March 1985, more than 50,000 tons of molten iron have been disposed of. Tests and continuous production showed that the basicity of blast furnace slag decreased from 1.05 to 0.95 to 1.0, the slag alkali removal rate increased from 50% to over 75% and the coke ratio decreased from 8 to 13 kg / tonne. Increased daily output of 10 to 18 tons. increase