Plate and frame filter machineThe correct method of operation:
1、 The pressure index of the scheduling constant pressure valve is generally adjusted to 0.05-0.10MPA, and the stable filtering pressure is maintained. Then open valves 11 and 15
2、 Open valves 1, 2, and 6, and the filter slurry is pressurized into the filter press by compressed air. Open valve 3 or 4, and the filtrate enters the metering tank.

3、 Check the filtrate. If the filtrate is clear, the surface filtration is normal. If the filtrate is found to be turbid or contains filter residue, it indicates that there is a problem during the filtration process. Intermittent filtration should be carried out to check the condition of the filter cloth and equipment, whether the filter plate and frame are deformed, whether there are cracks, and whether there are leaks in the pipeline.
4、 Record the amount of filtrate and the corresponding time. When the pressure gauge reading at the inlet of the filter press increases to near the pressure on the constant pressure tank, the measurement ends. Open valve 9 or 10 to discharge the filtrate.

5、 Close valve 6 and open valve 7, wash the filter residue with clean water, and measure the filtrate volume and corresponding time together to obtain the filtration rate.
6、 Close valves 3 and 7, open valve 8, and blow compressed air onto the filter residue to facilitate its dropping. Then close valves 5 and 8, unload the filter residue and clean the filter cloth. If there is excess material in the constant pressure material tank, open valve 26 or valve 19, and use air to press or discharge the excess material into the batching tank. Finally, close valves 11 and 15 and turn off the air compressor.