Material and usage of filter cloth of plate and frame filter press

Filter cloth is an important part of accessory equipment of filter press According to different models, the matching of filter cloth is also different Today, I would like to share the selection and use of filter cloth of plate and frame filter press First of all, the materials to be pressed and filtered shall be determined according to different materials Second, the filtration precision should be defined in the production, and the filter cloth with appropriate permeability should be selected according to the filtration precision Although the filter cloth plays an important role in the initial filtering accuracy of the filter press, the higher the initial filtering accuracy is, the better it is It is necessary to consider that the filtering accuracy can meet the low requirements of Zui Because the filter cloth has a very small retention effect after the filter press has formed a filter layer for a period of time, the real role of fine filtration is "filter layer", forming a good filter layer is the key to the use of filter press technology Thirdly, the stripping performance of filter cake Pay special attention to the peeling performance of filter cake when selecting filter cloth The surface of the filter cloth is smooth and flat, the filter cake is peeled quickly, the operation time of thorough filtration is short, and the efficiency is high The filter cake is not easy to peel on the filter cloth, which will prolong the operation time of the filter press and reduce the working efficiency If the filter cloth is to be replaced, the time will be longer It is better to choose monofilament filter cloth than long multifilament and short fiber filter cloth, and satin fabric is better than plain fabric Fourth, the regeneration performance of filter cloth When selecting filter cloth, pay attention to selecting filter cloth with good regeneration performance The filter cloth with good regeneration performance can be washed directly on the filter press to reduce the number of cloth changes After simple treatment, the filtration efficiency of the replaced filter cloth can be recovered to more than 80% Fifth, the filtration experiment of materials The filter press needs continuous experiments when it is used It is very important to carry out filtration experiments on raw materials after the initial selection of filter cloth Small sample experiments were carried out to investigate the filtration rate, retention effect, moisture content of filter cake, cake unloading performance and regeneration performance of filter cloth This is the common problem of Zui in the selection and use of filter cloth for plate and frame filter press Of course, not only the plate and frame type, other types of filter press are also applicable!