上榆泉洗煤厂原设计要求入洗原煤粒度为300~0 mm,实际生产中部分大块甚至超大块(粒度大于600 mm)的进入准备系统和块煤分选系统,对这两大系统造成了严重的破坏,甚至无法生产,不得不对原煤准备系统进行改造。改造后保证了洗煤厂原煤入洗粒度,提高了洗煤厂经济效益。 The design of the former Yuquan coal washing plant required that the raw coal particle size should be 300 ~ 0 mm, and some large block or even large block (particle size greater than 600 mm) in the actual production enter the preparation system and lump coal sorting system, resulting in the two systems A serious damage, or even unable to produce, had to reform the coal preparation system. Rebuilt to ensure that the washing coal washing plant particle size, improve the economic efficiency of coal washing plant.