PP diaphragm filter press

Working principle of PP diaphragm filter press:

1. Open flow non washable models: Ports A, B, C, and D are sealed, without a washing system. When filtering the feed, valve L opens, and the pressure regulating valve adjusts the flow and pressure, and the water nozzle discharges liquid. When pressing, valve 1 is closed, valve 3 is opened, and water is extracted from F for diaphragm pressing. After the pressing is completed, open the reflux valve to discharge the pressing water.

2. Open flow washable model: Ports C and D are sealed tightly. When filtering the feed, valve 1 opens, the pressure regulating valve adjusts the flow and pressure, and the water nozzle opens to discharge liquid; When pressing, valve 1 is closed, valve 3 is opened, and F enters the water for diaphragm pressing. After the pressing is completed, open the reflux valve to discharge the pressing water. When washing, valve 1 is closed and the water nozzle on the washing plate is closed. Open valves 2, 4, and 5, and feed washing water into ports A and B.

3. Undercurrent non washable models: Ports A and B are sealed tightly, and when there is no water outlet or feed, valve l opens and valves 6 and 7 discharge liquid. When pressing, valve l is closed, valve 3 is opened, and F is filled with water for diaphragm pressing. After the pressing is completed, open the reflux valve to discharge the pressing water.

4. Undercurrent washable model: No water nozzle for liquid discharge. When filtering the feed, close valves 4 and 5, open valve 1 for feed, and open valves 6 and 7 for liquid discharge. When pressing, valve 1 is closed, valve 3 is opened, and F enters the water for diaphragm pressing. After the pressing is completed, open the reflux valve to discharge the pressing water. To cross wash, first open valves 2, 4, and 7, close valves 1, 5, and 6, and the washing water enters the washing plate from ports A and C and is discharged from ports B and D. Then close valves 1, 4, and 7, and open valves 2, 5, and 6. The washing water enters the washing plate from ports B and D and is discharged from ports A and C.

Characteristics of PP diaphragm filter press:

1. The PP diaphragm filter plate is molded from polypropylene and imported elastomers, with high strength, light weight, corrosion resistance, and no odor.

2. Improve the solid content of filter cake, increase the strength of filter cake, and make cake unloading easier.

3. The application of diaphragm squeezing technology can compact the cracks in the filter cake, resulting in short washing time, good effect, and low washing water consumption.

4. Using a filtration pressure range of 0.6Mpa to 1.6Mpa for feed and 0.6Mpa to 2.5Mpa for pressing, to ensure optimal conditions for forming filter cakes, pressurized filtration is carried out.

5. The PP diaphragm filter press can also be equipped with automatic plate pulling and other systems. It only needs to operate the control buttons on the electrical control cabinet to achieve automatic control, greatly reducing work intensity. Improve work efficiency.

6. It can directly remove sludge with a moisture content of over 95% (such as industrial sludge and urban sewage) to a level of 55% -38% in one go, achieving a revolutionary breakthrough in sludge mechanical dewatering technology.

Schematic diagram of PP diaphragm filter press pipeline:

Note:

1. The washing system and backwash system can be selected according to the user's process conditions;

2. Each valve should be installed as close as possible to the thrust plate and minimize bends;

3. The pressing medium can be water, oil, air, etc.