Plate and frame filter press_How to prevent plate and frame filter press failure?

Plate and frame filter presses play an important role in the industrial filtration process. If the feed speed is too fast during use, the plate and frame filter press may fail. This is mainly because the plate filter press is prone to clogging due to the fast feed speed. Therefore, reasonable control of the feed speed can make the plate and frame filter press work more smoothly.

Usually, in the industrial filtration production line, the feed speed of the plate and frame filter press are different at different stages. When the plate and frame filter press just starts pressurized filtration, there will not be too much slurry in the filter chamber and the thickness of the filter cake will not be too large. Therefore, a faster packing speed should be used to fill the plate and frame filter press in time to ensure that there is enough pressure in the filter chamber. After the plate and frame filter press has been running for some time, the feed speed should be slowed down to avoid excessive feeding, which will cause the plate and frame filter press to be blocked.

The outstanding feature of the flexible transmission system of the plate and frame filter press is that it is a highly reliable transmission system, which does not affect the normal operation of the discharge cake and the deformation of other structural parts when the filter plate is tilted. Considering the basic requirements of daily operation and replacement of filter cloth, the design of the pressure pipe filter cloth frame is very convenient. When the filter plate is replaced normally, there is no need to disassemble the hinged steel plate, and the vibration beam will not be shielded. After moving the flexible wire rope, the filter plate can be easily lifted, providing good working conditions for maintenance.

The new frame and frame filter press cannot be put into operation directly. Before formal use, it must go through the necessary debugging steps and confirm that the debugging is qualified before it can be put into operation. Use the front plate and frame filter press for debugging:

1. Clean and check the hydraulic station, electrical control box, and other parts of the plate filter press. These are cleaned, and the inside of the fuel tank should also be cleaned. Check whether the plate filter press equipment's power supply, compression, and return oil pipelines are normal.

2. Ensure that the installation is correct. Check whether the upper and lower pressure limits of the electric contact pressure gauge of the plate and frame filter press meet the requirements.

3. Check the power wiring, pay attention to waterproof and moisture-proof, and the arrangement should be completely reasonable to avoid disconnection when the equipment works. Wipe the frame, filter plate, and piston rod. Check whether the filter plates are neatly and correctly arranged on the frame and frame filter press. Then you have to pay attention to the condition of the filter cloth and check whether the filter cloth is folded. If necessary, could you flatten it?

4. Check whether the configuration of the feed, cleaning, purging, unloading and other pipelines and valves is correct and reasonable.

The plate and frame filter press shall be debugged as above before it is put into use. For the plate and frame filter press that has been out of service for some time, it shall be debugged before re-commissioning. This is to improve the use efficiency and the comprehensiveness of A. Important guarantee. Open all the outlet valves of the plate and frame filter press, close the valves of the washing and purge machines, and open the feed valve about a quarter. At this time, start the feed pump to check the changes in the filtrate and feed pressure. If the pressure C is high, it is necessary to open the valve on the return pipe for adjustment. Due to the capillary action of the plate and frame filter press, the filtrate will appear turbid at the beginning of filtration, which is normal.