Are the plate and frame filter presses the same as the diaphragm filter presses? Many friends who are not very familiar with the filter presses regard the plate and frame filter presses and the diaphragm presses as the same kind of machinery. In fact, there is a difference between the two. The following large filter press is a small series for everyone to introduce the difference between the frame filter press and the diaphragm filter.
The basic principle and the same structure of the plate and frame filter press and the diaphragm filter press, the difference is that the filter plate used in the diaphragm filter press has a diaphragm cavity on both sides. The diaphragm filter plate and the filter plate of the same shape are arranged at intervals to form a filter chamber of a certain volume. When the material is filtered, a certain pressure of gas (liquid) is injected into the diaphragm cavity to make the diaphragm bulge in the opposite direction to the filter cake spinning. In order to achieve the purpose of reducing the moisture content of the filter cake.
Compared to the filter plates of conventional box or frame filter presses, the diaphragm filter plates have two filter-faces that move back and forth. When the press medium is introduced into the back side of the diaphragm (such as compressed air), the movable diaphragm bulges in the direction of the filter chamber, that is, after the filtration process is finished, the filter cake is again subjected to high pressure extrusion. The benefits of the diaphragm filter plate are: the filtration process with diaphragm filter plate, the moisture content of the filter cake can be 10-40% lower than the ordinary filter plate. Can save you a lot of follow-up costs.
At the same time, when the filter cake is washed, the amount of washing water can be reduced by the pressing of the diaphragm, and the effect is better.
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Ms. Ada
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Электронная Почта:ada@hongfafilterpress.com
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