The Pore Size Of Different Filter Press Filter Cloths

Date: 2024-07-12     From: Longding     Author: admin

The pore size of filter press cloth is usually determined by air permeability. The mesh number of a filter press cloth is not important, but the air permeability or the diameter of solid particles should be considered. 750 series is more commonly used.

Common filter cloth pore sizes

There are many types and materials of filter cloth for filter press. The pore size of the filter cloth varies according to the specific filtering requirements. Generally, for solid-liquid separation of coarse particles, you can choose a filter cloth with a lower mesh number. For solid-liquid separation of fine particles, you need to choose a filter cloth with a higher mesh number. Common filter cloth mesh ranges from 20 mesh to 200 mesh.

The pore size of special material filter cloth

Filter press cloth made of specific materials also has its specific pore range. Polyester filter cloth, polypropylene filter cloth, nylon filter cloth, and vinylon filter cloth all have their applicable pore ranges. Polyester filter cloth is resistant to high temperatures and is suitable for filtering slurry at temperatures below 150°C; nylon filter cloth is suitable for situations where high stretchability is required for the filter cloth; vinylon filter cloth has good alkali resistance and is suitable for filtering liquids with strong alkalinity; and polypropylene filter cloth is suitable for filtering liquids containing fine solid particles.

User needs and application industries

When choosing the mesh number of filter press cloth, the actual needs of the user and the industry of application should also be considered. In chemical, pharmaceutical, food, environmental protection, and other industries, the application of filter presses varies, and the required filtration accuracy and filtration effect will also vary. Therefore, choosing the appropriate mesh number should not only refer to the general standards of the industry, but also be combined with the specific process flow and material characteristics.