在目前开采出来的煤炭中,煤粉占了很大的比例。这是由于煤炭在采掘和运输过程中受到水力和机械力的冲击,以及相互碰撞而造成的,其数量达煤炭总开采量的四分之一。今后,随着机械化采煤水平的提高,煤粉的比例看来还会增加。因此如何利用煤粉就成了一个很重要的问题。当然,煤粉可以作为燃料用。但是,这很可惜。 Among the currently mined coal, pulverized coal accounts for a large proportion. This is due to the impact of hydraulic and mechanical forces on the coal during mining and transportation, as well as the mutual collisions, which amount to one-fourth of the total coal mining volume. In the future, as the level of mechanized coal mining increases, the proportion of pulverized coal will appear to increase. Therefore, how to use pulverized coal has become a very important issue. Of course, pulverized coal can be used as fuel. However, this is a pity.