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上海第五钢铁厂用“热闷罐”法对转炉渣进行“裂解”和“消解”处理,作为产品之一的含金属铁(MFe)渣粉,可以不经过筛选,直接用原渣粉配加水泥和石灰作为粘结剂进行造块,最佳配比是渣粉∶水泥∶石灰=90∶8∶2,加水10％,造块后经过7天养护,常温落下强度和900℃高温强度均满足要求。本研究确定的冷结造块法,工艺过程简单,为转炉含MFe渣粉的增值利用,提供了有效的途径。
Shanghai No.5 Iron and Steel Plant uses the method of “hot boring jar” to carry out “cracking” and “digestion” treatment on converter slag. As one of the products, the metal-containing iron (MFe) slag powder can be directly filtered with raw slag Add cement and lime as a binder to make block, the best ratio is slag powder: cement: lime = 90: 8: 2, add water 10%, block after 7 days of conservation, normal temperature drop strength and 900 ℃ high temperature strength All meet the requirements. The cold-formed block method determined in this study has a simple process and provides an effective way for the value-added utilization of converter-containing MFe slag powder.