When the double-layer filter cloth is used, one side is the filter layer and the other side is the support layer. Two layers of effective interweave are interwoven together. The appearance of the fabric can make the pore size of the filter cloth as small as possible, so that the precision of the filter layer is much smaller. Around 8 μm, the mechanical strength of the lining fabric of the underlying filter cloth is greatly improved due to the firm support. This high-strength filter cloth with good drainage is designed specifically for vacuum belt filters, drum filters and centrifuges. Used in chemical, pharmaceutical, citric acid, phosphate fertilizers, monosodium glutamate, and catalysts.
Double-layered filter cloths improve the accuracy of the previous filter cloths to a certain extent, and the filter cloths must be very thin and thin when used. The filter cloths have defects that are easy to wear and break. 2. The maximum width of 3.3 meters, especially for wide-width vacuum belt filter, high strength, no discount, no deviation. To deal with the problem of the need for laps in domestic wide-width filter fabrics. The common diversion and drainage effect formed by the special supporting structure on the bottom layer can improve the filtration rate by 30%-50% compared with the general domestic use of the filter cloth without adding the drainage bottom net. This saves the trouble of the Jiadi network and also removes the filter. The problem that the cloth and the bottom net cannot be closely attached when filtering. Especially useful in centrifuges.
When the double-layer filter cloth is used, it is necessary to ensure that the filter cloth is flat and fixed on the frame board, so as to prevent the filter cloth from being damaged by the pressure of the filter cloth. When using industrial filter cloths, it is first necessary to check whether there is a relevant approval from the relevant health department and to ensure that there is no adverse effect on the human body.
After the use of the filter cloth, the hard hydrophobicity and the air permeability will become worse. In order to prevent the onset of these conditions and to extend the service life of the filter cloth, we must remember to use after-cleaning. The time that the filter cake sticks to the filter cloth should not be too long, which will cause deformation and sagging of the filter cloth.