kebo

24

2021

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03

Diaphragm filter press filter cloth performance in the range of applications in the industry


In the filtration process of the industry, the application of diaphragm filter press is very extensive and very special! Diaphragm filter press as all filter press equipment after filtration of the filter cake moisture content of the equipment, it is precisely because the diaphragm filter press uses the diaphragm filter plate to have more advantages than the chamber filter press, but also because of the use of diaphragm filter plate so this type of equipment becomes a "diaphragm filter press", it can be seen that the importance of the isolation filter plate to the diaphragm filter press.

Diaphragm filter press In the filtration process of the industry, the diaphragm filter plate is a more complex filter plate with more modern technology and the use of modern technology. The diaphragm filter plate of the diaphragm filter press equipment adopts two kinds of separators welded on a hollow plate frame filter plate, so that the hollow structure of the diaphragm filter plate is formed, and the outer surface of the diaphragm still has a certain depression space, the bottom will also create a lot of blind spots, the purpose of the diaphragm filter press design and the purpose of the chamber filter plate is the same, for storing and supporting the filter cake, forming the necessary flow path. It is closely connected to the plate and frame filter plate to form a good sealing space, which only needs to be designed to be connected to the outside world by designing a pipe to feed or exclude the expansion.

When the internal expansion of the diaphragm filter plate continues to increase, the expansion is to apply a pressure to the separator, when this pressure is greater than the resistance of the filter cake to the separator, the partition will bulge outward, which causes the expansion and deformation of the diaphragm filter plate, and the raised space can reduce the space of the filter cake between the filter plates, and finally the level between the filter cakes can be further filtered out, to achieve the secondary extrusion dehydration of the filter cake, thereby reducing the moisture content of the filter cake.

For the diaphragm filter plate of the diaphragm filter press is to be limited, it is impossible to limit the expansion, so the diaphragm filter plate has an additional parameter, that is, the expansion parameter of the diaphragm filter plate, when the diaphragm filter press industry uses the larger the parameters, the cake extrusion effect is more obvious, then the cake sweat rate is lower. Generally speaking, the larger the filter plate of the diaphragm filter press, the larger the number of expansion, but it is always guaranteed to be in the range below 1 .8cm.