近几年来,在高炉生产中,人们对于用廉价的非结焦煤制备的煤粉代替一部分焦炭的兴趣在不断提高。这是因为用煤粉作为焦炭的代用品比其它燃料更优越。最近几年,苏联和国外开始在工业生产中采用喷吹煤粉的高炉冶炼工艺。在工业生产条件下有可能往炉缸里喷吹200kg/t铁煤粉来代替30％的焦炭。 In recent years, there has been an increasing interest in the production of blast furnaces to replace part of the coke with pulverized coal prepared with cheap, coking coal. This is because pulverized coal as a substitute for coke is superior to other fuels. In recent years, the Soviet Union and abroad have begun to employ blast furnace smelting processes that pulverized coal in industrial production. It is possible to blow 200 kg / t of iron pulverized coal into the hearth instead of 30% of coke under industrial conditions.