1, when the sludge is too thick or dry block left, it will cause a blockage of the feeding port, the filter plates not only medium hydraulic system itself pressure, the plate itself due to long time compression is easy to damage;

2, insufficient feed or improper solid particles in the feed, the same will cause the frame itself too much force to damage;

3. If the outlet is blocked by solid or it closes the feed valve or valve when it is started, the pressure is not leaking out so as to cause damage;

4, the filter plate cleaning dirt, sometimes causing leakage of medium, once the leak will be washed out of the edge frame together with a small, medium large leakage caused by pressure can not be increased, the mud cake can not form.

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