基于PLC的选煤厂智能快速动态自动定量装车系统设计研究OA

In the past,the coal preparation plant of Xiaojiawa Coal Mine used commercial coal dynamic loading system,which had some problems,such as insufficient loading capacity,low loading precision,high loading cost,low degree of intelligent automation,low loading efficiency and so on.According to the above situation,an intelligent fast dynamic automatic quantitative loading system based on Siemens 1214PLC is designed,and the industrial test for one year is carried out.The results show that the loading system can achieve the goal of dynamic automatic quantitative loading,the loading time is shortened to 90 s,the maximum loading capacity is increased to 1 200 vehicles/d,the automobile transportation capacity is increased to 40 000 t/d,the loading efficiency and intelligent automation level are significantly improved,and the economic benefit is remarkable.