预先脱泥经济效益分析

he paper analizes Guobei coal preparation plant’s production practice. The result is that compared with pre-desliming technology and undesliming technology , the pre-desliming technology raises the production rate of fine coal 0.11 percent, the production rate of middlings 2.04 percent, and reduces the medium consumption from 3kg to 1.5kg,which increase the economic benefit 14.952 million yuan every year. Also pointed out that pre-desliming technology is suitable for the raw coal which is large numbers of and difficult to mud ,and it doesn’t adapt to all the coal preparation plant. It need combines with a specific coal to analyze.