During the operation of a pressure filter, problems are inevitable, with common issues including poor sealing of the filter chamber, leading to filtrate leaking out through the gaps between the filter plates, affecting production. How should this problem be addressed? Below, we introduce the causes and solutions.

Insufficient Pressure

Filter plates and filter cloths must be subjected to high pressure to achieve an airtight filtration chamber structure. When this pressure is insufficient, if the pressure applied to the filter plate of the pressure filter is less than the pressure of the filtrate, it is only natural that the filtrate will permeate through the gaps.

2. Deformation or damage of filter plates:

When the edge of the filter plate is damaged, even with a slight bulge, or if it is frequently worn, it will cause leakage when in contact with another filter plate under any pressure. This is determined by the situation of the leakage point; usually, the leakage caused by damaged filter plates is significant, and may even result in a jet-like discharge.

3. Incorrect placement of filter cloth:

There are many reasons why the filter room cannot be sealed, and we need to start with the simple ones. Surrounding the filter room, we should check for any wrinkles in the filter cloth or any missing edges. Since the structure of the filter room is interlocked by filter plates and filter cloth, under immense pressure, filter plates generally do not pose issues. Therefore, the problem likely lies with the filter cloth.

Sealing between the rigid filter plates is crucial, and the filter cloth plays a pivotal role in achieving this. Naturally, creases or defects in the filter cloth can easily lead to gaps between the plates, preventing the formation of a sealed filtration chamber.