塔山选煤厂原煤准备车间技术改造

Technical modification on raw coal prepared plant of Tashan coal preparation plant

为适应塔山选煤厂原煤含矸量大的洗选要求,对原煤准备车间手选皮带下料溜槽与运输皮带进行改造,并优化大块煤分级筛筛孔。原煤准备车间技术改造后,满足反手选的要求,工人劳动强度和破碎机磨损程度均下降,人工拣矸效率和精准度均提高,分级筛筛上物料分布均匀,基本没有出现堆积的现象。

In order to efficiently separate raw coal characterized by large amount of reject in Tashan coal preparation plant,technical modification on discharging chute of hand- picking belt and belt conveyor in raw coal prepared plant is made,at the same time upgrading large lump coal sizing screen aperture. The application shows that this modification can not only reach reverse hand cleaning well,making raw coal equably distribute on sizing screen deck without any stack,but also lower labor of workers and wear of crusher,with a high efficiency of hand picking accurately.