How to deal with mud and clay under the plate and frame filter press

 When the plate and frame filter press is unloading the mud cake, the sludge may adhere to the filter cloth, which will prolong its working time and increase the cost of use. In serious cases, the filter press cannot be dehydrated.

Reasons for sludge adhesion to filter cloth of plate and frame filter press

1.Excessive dosage will lead to water viscosity. After polyacrylamide is dissolved, it forms longer and more molecular branches in the sludge, wraps the sludge particles and forms flocculation. If the dosage is too large, the water quality and sludge viscosity will increase, and the filter cloth will be easily blocked.

2. The PAM ionization used for desludging is too high, resulting in increased sludge viscosity. When passing through the filter cloth, the water seepage holes of the filter cloth are blocked, resulting in incomplete desludging or sticking to the filter cloth.

3. Improper selection of polyacrylamide leads to mud and water separation during sludge dehydration. It is recommended to choose a more suitable polypropylene grinding amine to ensure that the sludge will not contact the filter cloth during the pressing process.

4. Produced by the manufacturing quality of the plate and frame filter press. Due to problems such as the filter press time, the quality of the filter cloth, and the gap between the manufacturing structure of the filter press, in many cases the mud cake cannot fall off by itself;

How to deal with mud and clay plate and frame filter press？

1. Clean the filter cloth
The main reason for mud and clay under the plate and frame filter press is that the filter cloth is blocked by clay. Therefore, cleaning the filter cloth is the primary solution. First, turn off the power of the plate and frame filter press and open the inspection door of the filter press. Then, remove the filter cloth and clean it with clean water and detergent. Be sure to pay attention to safety and avoid contact with the power supply.

2. Adjust the filtration pressure
Appropriate filtration pressure can effectively avoid the generation of mud and clay. Therefore, adjusting the filtration pressure is the key to solving the problem. The plate and frame filter press usually has the function of adjusting the filtration pressure, which is adjusted appropriately according to the actual situation.

3. Screening suitable filter materials
The selection of suitable filter materials can also solve the problem of mud and clay under the plate and frame filter press. The selection of filter materials should take into account factors such as the viscosity, particle size and moisture content of the mud and clay to ensure that the filter material has good drainage characteristics.

In addition to the above methods, the generation of mud and clay can also be avoided by cleaning the feed pipe of the plate and frame filter press, strengthening cleaning and maintenance.

In short, mud and clay under the plate and frame filter press is a common problem, but this problem can be effectively solved by cleaning the filter cloth, adjusting the filtration pressure and screening suitable filter materials to ensure the normal operation of the plate and frame filter press.

If you have the same troubles or similar problems, please contact hzfilter, we will try our best to provide you with solutions!

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