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北京钢铁学院和包头市东风钢铁厂联合研究试验了硫酸渣烧结矿。这种烧结矿是配入50%左右包头市第一化工厂排放的硫酸渣废料制成的,其转鼓指数可达75%～80%(>5毫米),含硫在0.15%以下,可以满足高炉冶炼的要求。硫酸渣烧结的工艺特点是高配炭量、高水份、碱度不宜过高,最佳工艺参数是焦煤粉8%,水份8%,碱度1.2左右。利用硫酸渣生产烧结矿可以解决硫酸渣对环境的污染,还可以使钢铁厂和化工厂在经济上都受益。就包头市来说,每年排放
Beijing Institute of Iron and Steel and Baotou Dongfeng Iron and Steel Plant joint test of sulfuric acid slag sinter. This kind of sinter is made of sulfuric acid waste discharged from the first chemical plant in Baotou about 50%. Its drum index can reach 75% ~ 80% (> 5 mm) and sulfur below 0.15% Meet the blast furnace smelting requirements. Sulfuric acid slag sintering process is characterized by high carbon content, high moisture, alkalinity should not be too high, the best process parameters of coking coal powder 8%, 8% water, alkalinity 1.2 or so. The use of sulfuric acid slag production of sinter can solve the pollution of sulfuric acid residue on the environment, but also can make steel mills and chemical plants are economically benefit. In Baotou, it is discharged annually