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一、前言南京铁合金厂金属铬生产中的水浸废渣合有少量有害的六价铬,经烧结后代替蛇纹石为熔剂于一九七三年五月在镇江磷肥厂的28M~3高炉中试生产钙镁磷钾肥取得成功,获得比较满意的结果。但是在水浸废渣烧结时,如采用烧结机,则投资大,上马慢,不符合“多、快、好、省”的精神;如采用烧结锅或土法烧结,则存在着有害烟尘浓度
I. Introduction Nanchang Ferroalloy metal chromium production of flooding waste with a small amount of harmful hexavalent chromium, after sintering instead of serpentine as flux in May 1973 in Zhenjiang phosphate fertilizer plant 28M ~ 3 blast furnace Pilot production of Ca, P and K fertilizer success, access to more satisfactory results. However, in the sintering process of flooding slag, such as the use of sintering machine, the investment, slow start, does not meet the “more, faster, better, provincial” spirit; such as sintering pot or soil sintering, there is the concentration of harmful smoke