摘要
结合污水处理厂生产工艺特点,依据PLC强大的编程和控制功能,辅以接近开关及液位差计等监测元件,对清污机原继电控制系统进行了改造,实现了污水中的漂浮污染物自动去除的目的。详细介绍了PLC编程过程和自动控制的特点,并根据实际使用经验,提出了PLC在安装及使用过程中应注意的几个技术问题。
Combining with the process features of a sewage treatment plant,by using the powerful programming and controlling functions of PLC and aided with some monitoring elements such as level gauge ,this paper improved the control system of a cleaning machine by replacing the relay control with PLC control. The practice shows the sewage floating pollutants can be removed.
出处
《机械工程与自动化》
2008年第3期137-139,共3页
Mechanical Engineering & Automation
关键词
PLC
自动控制
清污机
PLC automatic control cleaning machine
