Control System Based On Plc Fuzzy Control Rotary Spreader

In the process of coke-fired, because of the rugged coal layer, uneven distribution, lead the coal burning insufficiency, influence the burning efficiency and an increase of energy loss. Thus, a even, high efficiency, advanced coal distribution equipment and system in the coke coal play an increasingly important role.In terms of the based on relay control system of no.1 coke even coal distribution equipment of Maanshan Iron & Steel Co.,Ltd, faced with many problems, such as high fault rate, low accuracy, operate complex, low capacity of management and so on. This paper designs a rotate coal distribution auto-control system based on PLC and touch screen.By analyzing and studying the checking link, the controlling mode and control strategy on coal distribution system, in connection with some features such as long time lag, nonlinearity and modeling difficulties, it puts toward a fuzzy control method based on PLC and discoursed Principle and structure of the fuzzy controller ,and designs a fuzzy controller of two inputs and one output to control the Parameters of speed on line, The design of fuzzy controller is realized by PLC, the off-line calculation of fuzzy-control table is realized by MATLAB.This control scheme has been applied in the coke even coal distribution system of Maanshan Iron & Steel Co.,Ltd, and the system operates well. The control system by this paper is stabilize and high efficiency, and improved the evenness degree by fuzzy control algorithm. Thus, it Provides a new control mentality and new control strategy for research and application of coal distribution system.