马脊梁选煤厂原煤系统技术改造

Technical Transformation of Raw Coal System in Majiliang Coal Preparation Plant

马脊梁选煤厂原煤系统设计生产能力为6.0 Mt/a,不能满足扩能改造达到10.0 Mt/a的生产能力。在选煤厂现有原煤系统基础上新增6.0 Mt/a的原煤准备系统,生产中甩开缓冲仓及给料机,新建201带式输送机及栈桥,将201带式输送机角度由18°调整到13.18°。201带式输送机采用驱动热备用,变频驱动,准备车间采用双系统设置。改造后生产能力提高到12.0 Mt/a,满足矿井生产的需求,降低了生产维护工作强度,提高了生产可靠性。

The designed production capacity of raw coal system in Majiliang Coal Preparation Plant is 6.0 Mt/a,which can not meet the production capacity of 10.0 Mt/a after capacity expansion.On the basis of the existing raw coal system in the coal preparation plant,a 6.0 Mt/a raw coal preparation system is added.In production,the buffer bin and feeder are thrown away,201 belt conveyor and trestle are built,and the angle of 201 belt conveyor is adjusted from 18°to 13.18°.201 belt conveyor adopts drive hot standby and frequency conversion drive,and preparation workshop adopts dual system setting.After the transformation,the production capacity is increased to 12.0 Mt/a,which meets the demand of mine production,reduces the intensity of production and maintenance,and improves the production reliability.