山西省阳泉市南庄煤矿新建一座年入洗量90万t的洗煤厂。在该厂集中监控系统设计中采用了美国通用电气公司(GE公司)生产的可编程序控制器(简称PC)。一、南庄洗煤厂流程主斜井钢丝绳胶带机是该矿的主提升设备,它与101胶带机衔接,通过101胶带机的正反转,改变煤流方向。工艺流程基本上可分为原煤准备、主洗、入贮和返煤四个部分。正常情况下,煤流来自井下煤仓,通过仓下给煤机、斜井钢丝绳胶带机 Nanquan Coal Mine in Yangquan City, Shanxi Province, a new annual washing capacity of 900,000 tons of coal washing plant. In the plant centralized monitoring system design used by the United States General Electric Company (GE) programmable logic controller (PC). First, the process of Nanzhuang Coal Mine Main shaft steel wire rope conveyor belt is the main lifting equipment of the mine, it is connected with the tape machine 101, 101 through the positive and negative tape machine to change the direction of coal flow. Process basically can be divided into coal preparation, the main wash, storage and return coal four parts. Under normal circumstances, the coal flow from the underground coal bunker, coal silo through the warehouse, inclined shaft rope tape machine