The selection of filter cloth is crucial to the quality of the filtration effect. During the operation of the filter press, the filter cloth plays a key role. The quality of its performance and the correctness of the selection directly affect the filtration effect. Currently, the most common type of filter cloth in use is made of synthetic fibers through weaving. Depending on the material, it can be classified into several types such as polyester, vinylon, polypropylene, and nylon. In order to achieve an ideal retention effect and filtration speed, when selecting the filter cloth, it is also necessary to make the choice according to the particle size, density, chemical composition of the slurry, and the filtration process conditions. Due to differences in the weaving materials and methods of the filter cloth, its strength, elongation, air permeability, thickness, etc. are all different, thus affecting the filtration effect. In addition, the filtration media also include cotton fabrics, non - woven fabrics, sieves, filter papers, and microporous membranes, etc., which are determined according to the actual filtration requirements. Common types of filter cloth: filter cloth sleeves and embedded anti - seepage filter cloth. This kind of filter cloth sleeve is sewn together by two filter cloth pieces and a feed hole connection sleeve. It is generally tied to the filter plate. A sealing ring is sewn into the edge of the filter cloth, and when installed, it is embedded in the filter plate, which can effectively prevent capillary seepage. Another commonly used filter cloth sleeve is the composite filter cloth, which is composed of two or more types of filter cloth or filter paper to achieve a special filtration effect.
