Have you ever encountered the problem that after treating wastewater with a sewage filter press, the mud cake produced always seems to fail to dry completely? Today, technical engineers from Works Chemical are here to talk about the reason why the mud cake of the sewage filter press is not dry.

Works Chemical- Sludge conditioner, sludge dewatering synergist manufacturer

First, then, what is the cause of the sewage filter press mud cake not to do it?

1. Filter press filter cloth cleaning is not complete: the filter residue is in the filter cloth aperture or the filter cake is attached to the filter cloth surface, forming a vacuum area for a long time, resulting in liquid-solid separation in this area, resulting in high liquid content of the filter cake, wet and sticky.

2. filter press filter cloth cake poor: filter cloth surface is not smooth or not after calendering treatment, after the filter press extrusion filtration, filter slag filter cake adhered to the surface of the filter cloth is not easy to fall off, artificial fall off still has residue, resulting in worse and worse filtering effect.

3. Poor quality of filter press filter cloth: under long-term extrusion, the filter cloth is damaged or opened, which is not found in time, resulting in leakage, high liquid content of filter cake, semen running muddy and so on. Filter material is too thick, after the filter press extrusion filter, it is easier to adhere to the surface of the filter cloth does not fall off, and even cause the filter press filter cloth clogging.

4. Unreasonable selection of filter cloth: there is no reasonable selection of filter cloth according to filtration equipment and working environment, resulting in poor filtration effect and increased liquid content of filter cake. The filtration effect of the filter press is not good, which may be caused by factors such as insufficient pressure and insufficient heating temperature.

Second, to solve this problem, you can try the following methods:

1. Clean the filter cloth regularly.

2. Control the thickness of filter cake to avoid the poor filtering effect caused by too thick filter cake.

3. By increasing the pressure of the filter press to improve the filtration effect, so that water and impurities are more easily separated.

4. Properly increasing the heating temperature can reduce the water content of filter cake.

5. If the quality of the filter cloth is poor or damaged, a new filter cloth should be replaced in time.

6. Reasonably adjust the process parameters of the filter press according to different filter substances and working environment.

7. For some more viscous filter substances, pretreatment can be increased, such as adding Shijun sludge conditioner, centrifugal treatment, etc., in order to reduce the viscosity of the substance and improve the filtration effect.

8. Regular maintenance and inspection of the filter press.