Emulsion Pump Station Design And Development, Based On The St-200 Plc Intelligent Control

In recent years, with the coal mine underground coal winning machine work traction speed greatly raised, the matched hydraulic support's advance speed also must rise accordingly, this needs hydraulic support for fluid equipment - emulsion pump have big flow for liquid ability. And at present domestic widely adopted for the emulsion pump for, and controlling totally relying on artificially experience operation, easy appear factitious factors faults and unable to realize automatic detection and control and processing function.In view of the above issues, we study fully large domestic and foreign relevant literature, the author designed developed "S7-200 PLC intelligent control emulsion pump system" plan, namely in the emulsion pump chooses in four emulsion pump of hydraulic support on for liquid, thus replace now use the single-user emulsion pump or a spray gun give priority to the pump and equipped with a emulsion pump as backup pump for liquid way. In the control amount of selecting through to the hydraulic system of competent road signs of stress value change data test to reflect hydraulic support during bring-up needed changes of the emulsion flow parameters, at the same time use the competent road signs of stress value on each machine emulsion pump operation situation of real-time adjustment, In the operation process of the emulsion pump selection priority cycle way, Design the online fault monitoring system, realize real-time various fault alarm and carries on the corresponding control.In the emulsion pump control system, by S7-200 PLC to establish standing and from standing between the distribution type management system, emulsion pump of the entire system will host controller of the global practice by reusing each branch net controller, control of system and corresponding management; Host controller through the competent road pressure changes and the various parameters value from the operation status of standing controller, system will all change input parameters predetermined programmer in priority circulation and the corresponding from standing controller sends loading or unloading command; supine From the station controller in receiving instructions from to host the real-time emulsion pump operations or to stop for controlling, loading or unloading etc, at the same time for system in fault to monitor, then each from the operation status of standing controller upload the host controller. Host controller and from standing controller is designed have man-machine interface, through the man-machine interface can be set correlative parameter value and for each pump operational status of the real-time detection.This topic is for high pressure, multiple pump, big flow of emulsion pump, design and development of control system, has the on-line monitoring running condition and intelligent control system, which occurred on the system fault diagnosis, and realize the data storage and fault alarm functions, which has greatly enhanced the coal mine underground mining production efficiency. This topic's research and development to better solve the emulsion pump of automation control problem for our country's coal industry to achieve production automation made due contributions.