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用竖窑煅烧白云石,采用混合间层加料,控制煅白的某些指标,能保证煅白的内在质量,提高镁的产出率。 1991年10月以前,我厂用竖窑煅烧白云石,采用石煤混合配料法操作,煅白的活性度为20％～25％,但镁的产出率仅为58.78％,平均单罐产量为12.3kg。从1991年10月开始,改用混合间层加料法,10月至12月底,煅白活性度为20％～25％,镁的产出率达69％,平均单罐产量为14.7kg。1992年元月,镁产出率达70.27％,平均单罐产量为15.1kg。在同样的生产条件及消耗情况下,采用混合间层加料法煅烧白云石,使煅白的内在质量
Dolomite calcined with a shaft kiln, the use of mixed inter-layer feed to control some of the indicators of calcined white, to ensure the intrinsic quality of calcined white, improve the yield of magnesium. Before October 1991, the dolomite calcined dolomite was processed by shaft kiln mixed with stone coal. The activity of calcined white was 20% ~ 25%, but the yield of magnesium was only 58.78%. The average single-pot output For 12.3kg. From October 1991 onwards, the use of mixed-layer feeding method, from October to the end of December, calcined white activity of 20% to 25%, the output rate of 69% of magnesium, the average yield per tank of 14.7kg. January 1992, magnesium output rate of 70.27%, the average yield of 15.1kg single tank. In the same conditions of production and consumption, the use of mixed intercalate feeding calcined dolomite, the intrinsic quality of calcined white