What principles are needed to match the filter cloth of frame filter press

The following five principles are needed to support the matching of filter cloth of frame filter press:

1. According to the chemical and physical properties of the material, the filter cloth material is selected. The supplier of filter cloth shall provide as detailed technical information as possible. Please select the filter cloth permeability requirements according to the selection of precision filter;

2. Technical parameters such as reserve size primary selection. Although it plays an important role in the filter cloth of the primary pressure filter, the possibility that the filtering accuracy can reach lower requirements and higher requirements is not considered as far as possible when the filtering accuracy is lower than that of the primary filter. Filter in a section due to the formation of filter layer news, in a small cloth role of negation, and really play the role of not fine filter “filter layer”, in order to form a good filter press filter layer is the key to the use of technology;

3. Pay attention to the selection of stripping filter cloth. Smooth cloth surface, quick peeling cake, thorough filtration, short operation time and high efficiency. This cake is not easy to peel off the filter cloth adhesion, the filter press will extend the opening time and reduce the work efficiency. It will take longer to change the filter cloth. Now it has been widely used in box filter press, and the replacement of filter cloth is more troublesome. The results show that the discharge performance of weft cake with multifilament ratio and staple fiber is better than that of plain satin cloth, and the discharge performance of filter cloth is better;

4. Regeneration performance of filter cloth. The performance of filter cloth selection is good, and attention is paid to the selection of renewable filter cloth. The performance of the filter cloth of the regenerative filter press is good, and the towel can be directly wiped to reduce the number of changed cloth. Changing the filter cloth through a simple process, the filtration efficiency is 80%;

5. Experiment of filter material. The use of filter press technology is an experimental technology. It is very important to select the raw materials after the filter cloth. Filter material samples for experiment. Inspection rate of filter cloth, retention effect, moisture content of filter cake, discharge performance and reuse performance.

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