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唐钢一炼铁厂在两座100m~3高炉(3、4号高炉)于1994年9月开始喷吹无烟煤,并于同年11月喷吹烟煤,煤比稳定在80kg/t以上,取得了良好的效果。 1.喷煤工艺由于与一铁厂相邻的原料厂使用烟煤粉烧白灰,且球磨机制粉能力大,可每天供给一铁厂约60t煤粉,所以一炼铁厂没有上煤粉制备系统,喷煤所用煤粉是由原料厂制好后用管道输送过来的。喷吹系统是由收粉布袋,煤仓,中间罐、喷吹罐及给煤器等组成。表1中列出了喷吹所用煤粉的成分(实
Tangshan Iron and a ironworks in two 100m ~ 3 blast furnace (3,4 blast furnace) in September 1994 began to inject anthracite, and in the same year in November bituminous coal, coal ratio stabilized at above 80kg / t, made good effect. 1. Pulverized coal injection process As the adjacent iron ore plant with the use of pulverized coal ash burning, and mill milling capacity, can supply a day about 60t iron pulverized coal, so a iron smelter is not prepared on the coal System, pulverized coal used by the pulverized coal plant system is made of good piping over. Injection system is by the powder bag, coal warehouse, the middle cans, spray cans and coal feeder and other components. Table 1 lists the composition of the pulverized coal injection (real