摘要
为了提高MJXJ型TBS干扰床分选机的分选效率和精度,采用PLC与触摸屏联合控制的方法监测并控制TBS的运行过程,各个阀门、执行器由PLC控制,顶水流量、床层密度和实时流态分别通过超声波流量计、密度计采集到PLC中,利用PLC自带的PID功能,通过触摸屏显示,最终实现TBS的稳定高效运行,提高了分选效率。
In order to improve the separation efficiency and sharpness of the MJXJ Teetered-bed separator(TBS),the PLC and touch screen integrated method is applied for monitoring and control of the separator′s operating process.Practice shows the combined control mode has met with a remarkably good result,much improving the separator′s operating efficiency.All of the valves and actuators are under PLC control,and the upward water flow and bed density values and real-time flow state are respectively measured and collected by flowmeter and densimeter and then sent to PLC.These data can be displayed on touch screen through processing with PLC′s self-contained PID function,so as to enable TBS to operate in a highly efficient and reliable manner.
作者
刘欣
LIU Xin(Tangshan Research Institute Co.Ltd.,China Coal Technology and Engineering Group,Tangshan 063012,China;Hebei Provice Coal Preparation Engineering&Technology Research Center,Tangshan 060312,China)
出处
《选煤技术》
CAS
2019年第4期80-83,88,共5页
Coal Preparation Technology
基金
天地科技“重大技术创新项目”(zdjs-2017tsky-6)
