1: Plate-and-frame filter press (plate-and-frame filter press) consists of a group of filter chambers, with filter plates and filter frames alternately arranged. There are grooves on the surface of the filter plate, and its protruding part is used to support the filter cloth. There are through holes in the corners of the filter frame and the filter plate, which form a complete channel after assembly, and can be used for introducing suspension, washing water and extracting filtrate. Both sides of the plate and the frame are supported by handles on the cross beam, and the plate and the frame are pressed by pressing devices. The filter cloth between the plate and the frame plays the role of sealing gasket. Suspended hydraulic pressure is pumped into the filter chamber through the feed pump to form filter residue on the filter cloth until the filter chamber is filled. The filtrate passes through the filter cloth, flows along the groove of the filter plate to the corner channel of the plate frame, and is discharged centrally. After filtration, clean washing water can be introduced to wash the filter residue. After cleaning, compressed air is sometimes introduced to remove the residual washing liquid. Then open the filter press to remove the filter residue, clean the filter cloth, re-compact the plate frame and start the next working cycle.

2. Plate-and-frame filter press is suitable for suspension with high compressibility or near incompressibility of filter residue. The suitable solid particle concentration of suspension is generally below 65438 00%, and the operating pressure is generally 0.3 ~ 0.6 MPa, especially above 3 MPa. The filtration area can increase or decrease with the number of plates and frames used. The plate frame is generally square, the length of the inner edge of the filter frame is 200 ~ 2000mm, the frame thickness is 16 ~ 80mm, and the filtering area is 0.5 ~ 1200m2. Plate and frame adopt manual screw, electric screw and hydraulic pressure. Plates and frames are made of wood, cast iron, cast steel, stainless steel, polypropylene and rubber. Belt filter press is widely used for sludge dewatering in urban sewage treatment, chemical industry, oil refining, metallurgy, paper making, leather making, food, coal washing, printing and dyeing industries. Continuous operation, high degree of automation, energy saving and high efficiency, convenient use and maintenance, is an ideal equipment for sludge dewatering.

Structural features: 1, advanced Australasian technology, beautiful and generous. 2. The structure has high rigidity, stable operation and low noise. 3. Equipped with advanced concentration pretreatment equipment, the operation cost is low. 4. The gravity dewatering area is equipped with an advanced distributor, which makes the materials evenly distributed and prolongs the service life of the filter belt. 5. It has a super-long gravity dewatering zone and a wedge-shaped dewatering zone, and the materials are fully dehydrated to ensure that the materials will not overflow in the pressing zone. 6. The arrangement of rollers is scientific and orderly, and gravity dewatering, wedge dewatering and press dewatering are discharged separately, which do not interfere with each other. The diameter ratio of press dewatering roller is large, and the dewatering effect is good. Therefore, the production capacity is large, energy-saving and efficient. 7. The continuous operation of mud cake from feeding to discharging has a high degree of automation, and plc interface can be set according to needs, which is convenient for centralized control by microcomputer. 8. The power transmission mechanism adopts mechanical or variable frequency stepless speed regulation, which has wide speed regulation range and wide adaptability. 9. The filter belt is equipped with a reliable backwashing device to ensure the dewatering effect of the filter belt. 10, pneumatic tensioning and pneumatic automatic deviation correction device are adopted to ensure the safe and normal operation of the filter belt. 1 1, safe and reliable operation, using infrared safety protection and all-round emergency safety parking device. 12. Filter belts with different structures can be configured according to different materials, with high filtering accuracy.