石圪台选煤厂创新创效探索与实践

Study and implementation of the innovation and economic improvement schemes at Shigetai Coal Preparation Plant

针对制约石圪台选煤厂提质增效的各个因素,在充分分析产生原因的基础上,提出创新创效方案并予以实施。在该方案成功实施后,实现了浅槽重介质分选机对中煤的有效回收,泥化的矸石泥被预先排出生产系统,10台低压风机分组分等级自动控制;商品煤的产率和煤泥水处理系统的处理效率均提高,商品煤发热量也提高,企业生产成本和煤泥水处理系统的生产压力均降低,生产效率提升显著。

Product upgrading and improvement of economic performance at Shigetai Coal Preparation Plant are subject to the restriction imposed by a series of factors. Based on the result of an in-depth analysis of the causes giving rise to these factors,a technical innovation and economic improvement scheme is proposed and put into practice. The successful implementation of the scheme makes it possible for the plant to realize effective recovery of middlings with shallow-trough heavy-medium separator,pre-removal of degraded fine slime from coal washing system,automatic control of 10 air compressors by groups and grades,increase of yield and calorific value of saleable coal and efficiency of slurry treatment system,cutdown of operating cost,reduction of load imposed on slurry treatment system,and increase of production efficiency.