Design On The Control System Of Framed Filter Press

With the increase in steel production capacity,converter sludge production is also increasing,part of the sludge can not be processed,must be taken to discharge or sell the way to deal with,leading to environmental pollution,and waste of energy.In order to take into account the economic and environmental benefits,a sludge treatment plant to establish a series of sludge treatment equipment.One of the most important was the automatic filter press,it taked a pneumatic diaphragm pump as a supply pump,the mud was pressed into the filter press for filtration to achieve the purpose of solid-liquid separation,and this equipment improved the utilization of converter sludge.In recent years,China's plate and frame filter press had made great progress in the theoretical research and practical applications,but compared with foreign high-performance plate and frame filter press,there was a large gap in all aspects.Therefore,the study of plate and frame filter press could help to break the monopoly of foreign companies and played a more important role in sludge dewatering.Firstly,the main structure and technological process of converter sludge dewatering system were summarized and analyzed,and the main structure and function of the plate and frame filter press were summarized.The hardware system of plate and frame filter press was designed,and the subject of the plate and frame filter press the hydraulic system schematic was develop,according to the actual working conditions,and the system was selected and calculated.Finally,the electrical schematic diagram of the hydraulic system was developed,according to the hydraulic system schematic diagram and the actual work in the implementation of the components of the action sequenceThe PLC input and output points were determined,according to the plate and frame filter press automation of the actual process sequence,consider to the traditional manual control problems.The filter diagram of the filter press system was drawn and the PLC ladder was drawnFinally,the failure of the actual operation is summarized and analyzed,the failure ofthe filter press and the common problems caused by the failure of the control problem were summarized,and the corresponding solution were gave.On the basis of long-term work experience,some ways to improve the efficiency of equipment were proposed,provided a certain practical experience reference for the plate and frame filter press work more stable and efficient.