Key points for choosing filter cloths for filter presses

We know that many filter presses are indispensable to the help of filter cloths when working to achieve excellent performance of filter presses, so how do we choose filter cloths while using filter presses? Today, I will mainly focus on the selection points of filter cloth for filter presses.

In the daily operation, there are many types of filter cloths for the filter press, whether from the material or the use of specifications, for example, from the material of nylon, polypropylene, vinylon and other different materials, which can correspond to different working conditions, the environment needs, among which for the selection of filter cloth, we should pay special attention to the following points.

1. Filter residue status. For the molding state of the filter residue and the uniformity of the particles, how soft and hard is it, which is to consider the wear resistance of the current filter cloth, and choose a more wear-resistant one.

2. The acidity and alkalinity of the filtrate. For the acid and alkali of the filtrate, it is especially necessary to pay attention to, if there is a corrosive filtrate, it is necessary to use a corrosion-resistant filter cloth to carry out, at this time you can consider the use of polyester filter cloth is ideal for acid filtration, and alkaline should choose vinylon filter cloth.

3. Filtrate temperature. For the temperature of the filtrate, many people often ignore it, but in fact, this is a problem to pay attention to, we know that the temperature will actually greatly affect the efficiency of the filter press and the filter cloth, especially for some higher temperature filtrates, the choice of filter cloth becomes very important at this time.

4. Peelability of filter residue. Filter residue is generally the product of filter press pressing, its peeling property is often not paid attention to, but it is precisely he has a direct impact on the efficiency of the filter press machinery, if the surface of the filter residue is smooth and peeling is good, the filtrate from the filter cloth dialysis will be fast, vice versa is slow.

5. The viscosity of the filtrate. The advantage of the smooth surface of the filter residue in the filter press, especially the plate and frame filter press, is that the filtrate will be relatively fast from the filter cloth, which shortens the filtration time and the efficiency of the whole machinery goes up, so the same as above, the efficiency with strong adhesion will often be reduced