氧气顶吹炼钢尘泥湿式回转窑制粒法

Granulation Technology of BOF Sloug-hy Dust in Wet Rotary Kiln

用湿式回转窑工艺设备,在窑内相继对真空过滤机产生的尘泥(含水40％左右)进行初步干燥、造粒、烧结三个过程。经烧结的粒块粒径大于等于3mm的占92.4％。这种粒块返回炼钢工序作造渣剂,实现尘泥厂内消纳。产品生产燃料消耗为3.18×10~6kJ/t。

Preliminary dehydration, granulation and sintering of vacuum-filter dust containing 40% of water can continuously be accomplished in wet rotary kiln. The product from the kiln is a kind of sintered briquene. This sintered briquette can be reused in the steelmaking process as slag-forming material. The fuel consumption of the BOF dust recycling process is not high and economically acceptable.