基于PLC的块煤转载防破碎系统设计  

Design of lump coal transshipping anti-fracturing system based on PLC

作　　者：龚德明[1] 刘同冈[1] 徐昌盛 赵志强[1] 

机构地区：[1]中国矿业大学机电工程学院,江苏徐州221116 [2]邯郸矿业集团郭二庄矿,河北邯郸056002

出　　处：《工矿自动化》2016年第3期12-15,共4页Journal Of Mine Automation

基　　金：江苏省自然科学基金资助项目(BK20131114)

摘　　要：针对选煤厂块煤运输过程中因转载点落差大而导致块煤易破碎的问题,提出了一种基于PLC的块煤转载防破碎系统,重点介绍了该系统的工作原理及其PLC控制系统设计方案。该系统采用超声波料位计检测煤位信号,并由PLC根据煤位信号控制变频器调节电动拨轮的转速,使块煤缓慢输出,从而达到减小块煤破碎量的效果。For a problem that lump coal fractures easily because of large drop of transshipping point during lump coal transport in coal preparation plant,a lump coal transshipping anti-fracturing system based on PLC was proposed.Working principle of the system and a design scheme of PLC control system were introduced.The system detects coal level signals by use of ultrasonic level-meter,and uses PLC to control frequency converter to adjust speed of electric spin wheel according to the coal level signals for outputting lump coal slowly,so as to reduce lump coal fracturing.

关 键 词：选煤厂 块煤转载 防破碎 煤位检测 PLC控制系统 

分 类 号：TD948.9[矿业工程—选矿]