随着煤炭业的不断发展,选煤厂的规模也在不断扩大,同时,洗选煤的作业方式也随之发生了一定变化。在选煤的过程中,煤炭的粒度控制是十分重要的环节之一,本文先对粒度进行简单分析,并阐述其在洗选加工过程中的重要性,然后提出一些控制粒度的可行性方法,以促进洗选加工工艺的进步。 With the continuous development of the coal industry, the scale of the coal preparation plant is also constantly expanding, meanwhile, some changes have taken place in the operation mode of coal washing. In the process of coal preparation, the particle size control of coal is one of the most important aspects. In this paper, the particle size is analyzed briefly and its importance in the process of washing and dressing is expounded. Then some feasible methods to control the particle size are put forward. To promote the progress of washing process.