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What's diaphragm filter press

Dec 14,2021

What's diaphragm filter press

In order to further reduce the moisture of the filter cake, the diaphragm filter pressperforms a second filtration on the filter cake.

 

diaphragm filter press are different from other types of filter presses at the beginning of the design, subverting the characteristics of filter presses that they must be solid, stable and not easily deformed. The membrane filter press filter plateopened up a new path, creating the era of hollow filter plates. 

The membrane filter plate adopts the same feed distribution channel as the chamber filter plate. A channel is designed in the middle of the filter plate to make the filtrate flowing in from the feed pipe evenly flow from the middle of the filter plate to the surroundings. So that the filter cloth in the membrane filter press is in contact with the filtered slurry, filtering, intercepting and separating. The intercepted filter cake is formed more uniformly, which creates good conditions for the following expansion and extrusion of the diaphragm filter plate.

Solid liquid separation equipment-membrane filter press filter plate adopts two-layer diaphragm plate splicing and welding structure. There is a space between the two layers. There is a channel in this closed space, which can be connected to the high pressure gas or liquid outside the filter press. When the channel is opened, high-pressure gas or liquid flows into the filter plate, making the pressure inside the filter plate greater than the pressure outside the filter plate. In this way, the diaphragm plates on both sides of the filter plate expand under internal pressure and protrude outward. The middle of the membrane  filter plate chamber of the membrane filter press is made larger, and the corresponding filter cake is also smaller in the middle, so that filter cake moisture can be further reduced during the squeeze process.

However, when the pressure inside the filter plate is reduced, the filter plate will return to a original shape, so that the next expansion and extrusion can be performed again. 

For more information about the use and product factors of membrane filter press, please follow the official website of Fujian Nanxing Environmental Protection Technology Co., Ltd. (www.nxfilterpress.com) and contact us for consultation.

membrane filter press.jpg

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