The Function and Selection of Filter Cloth for Filter Press

The application of filter cloth on the filter press is accomplished through filter plates, which are wrapped around the outside of each filter plate of the filter press.

Filter presses are divided into chamber filter presses, plate and frame filter presses, and membrane filter presses. These filter presses themselves have unified specifications and have certain filtration processing capabilities. To meet different filtration needs, just It is necessary to choose different filter media, matching filter cloth.

The model and filtration capacity of the filter cloth determine the filtration speed and filtration accuracy that the filter press can achieve. It is very important for the filter press. Whether the selection of filter cloth is correct directly determines the performance of the filtration effect.

There are many factors to consider when selecting filter cloth for a filter press, such as whether the objects to be filtered by the filter press are acidic and alkaline substances, whether there are requirements for the tensile strength of the filter cloth, the precision of the filtration and the speed of the filtration…

1. Filter cloth material
   The commonly used material for filter cloth in filter presses is synthetic fibers, including polyester filter cloth, vinylon filter cloth, polypropylene filter cloth, and nylon filter cloth. These filter cloth materials have ideal results in terms of interception effect and filtration speed.
2. The weaving method of filter cloth
   In addition to the material selection of the filter cloth , you must also pay attention to the weaving method of the filter cloth. Plain weave filter cloth has the best retention capacity, but is prone to clogging. Satin weave filter cloth has better slag removal ability, but poor retention ability. The performance of twill weave filter cloth in all aspects is relatively average.
3. Other parameters of filter cloth
   Some other performance parameters of the filter cloth also have an impact on the filtration effect, such as the strength, elongation, air permeability and thickness of the filter press. These factors of the filter cloth should be determined based on the particle size, density, chemical composition and filtration process of the slurry.