The plate-and-frame
filter press comprises a rack, a filter pressing plate, a hydraulic mechanism and a discharging mechanism, the discharging mechanism comprises a plate pulling trolley, a supporting frame and a scraper
assembly, walking guide rails are arranged on the two sides of the rack, the plate pulling trolley is arranged on the walking guide rails, the supporting frame is connected with the plate pulling trolley, and the scraper
assembly is arranged on the supporting frame. The scraping plate
assembly comprises a scraping plate, a lifting beam, a lifting motor, a rotating shaft and a lifting screw rod, the rotating shaft is arranged on a cross beam of the supporting frame, a first
bevel gear is arranged on the rotating shaft, the lifting motor is connected with the rotating shaft, the lifting screw rod is connected with the lifting beam, a second
bevel gear is arranged on the lifting screw rod, the second
bevel gear is in meshed connection with the first bevel gear, and the scraping plate is arranged on the lifting beam. The lifting motor drives the rotating shaft to rotate, and the rotating shaft drives the lifting screw rod to rotate, so that the lifting beam and the scraping plate are driven to lift and scrape off a
filter cake adhered to the filter pressing plate, manual scraping and shoveling are not needed, the
workload and the labor intensity of operators are reduced, the operation risk is reduced, and the unloading process is safe and high in efficiency.