Study on washing process of high ash raw coal in Honglin Coal Mine
The ash content of raw coal produced in Honglin Coal Mine is about 50%.With the increase of mining depth,the quality of raw coal has a tendency to gradually deteriorate.The ash content requirement of cleaned coal is 13%.The current Jig coal separation process has low coal yield,unstable coal quality and poor production flexibility,which cannot meet the market demand.In order to adapt to the change of coal quality and meet the requirements of the product market,the washing process of Honglin Coal Preparation plant was modified.The washing process was analyzed from the two aspects of coal quality characteristics and equipment process performance,and it was determined that the intelligent dry separation pre-discharge gangue+desliming non-pressure three-product heavy medium cyclone separation process could make reasonable use of existing equipment and give full play to the advantages of different separation equipment.Solve the problem of washing and separating high ash raw coal in this mine.
万方数据
维普
