Development Of Online Monitor And Control System Of Pneumatic Dust Collection Performance In Wood Industry

Energy-saving and emission reduction has become one of the hottest issues for the lack of energy and severe enviromental pollution. For solving the problems of high energy consuming and low efficiency dust collection of dust collection system in wood industry, this paper suggested that online monitor and control system of pneumatic dust collection performance in wood industry should be developed, so as to further research on pneumatic dust collection characteristics simply and efficiently. Thus pneumatic dust collection would be designed and run well, and the purpose of energy-saving and emission reduction would be reached.The system should meet the needs of simplicity, multifunction, automation, and online monitor and control. The functions of the system platform are as follow: a) the test of suspending velocity, b) the test of fan characteristics, c) the test of bag-hose dust collection performance, d) online monitor and control.According to the function needs of the online monitor and control system, the structure and devices were analysed in this paper. And the design program of the system was discussed and selected. According to the design program, the hardwares were selected properly, and the platform was assembled. The program of PLC was programed, so as to control the system platform. The graphical user interface was programed with VC development software in this paper, so the operations of the system were automatical and visual. After that, the debug was performed to decide the parameters of PID to ensure the normal operation of the system. Through debugging, the most relative deviation of pressure could be 2%, and the range of relative deviation of airflow was 1% to 3%.The technologies of sensor, PLC, invertor, VC programing were adopted to develop the online monitor and control. This paper properly integrated several experimental needs through automatical control technologies, and developed efficient system platform. Thus many design and operation parameters of pneumatic dust collection could be measured automatically in many kinds of runtime conditions, and the optimization operation parameters could be obtained. So the development of pneumatic dust collection in wood industry would be improved properly.