Common faults and the solutions of plate and frame filter press
The common faults of plate and frame filter press include three: filter plate damaging, water seepage between filter plates and filter cake uneven. Now let’s analysis the reason and the solutions one by one.
1, filter plate damaging
the reasons that the filter plate damages are:
1) when the feeding materials with too high concentration or with remaining dry piece, the feeding port will be block, then the filter plate is very easy to be damaged with a long time compression from hydraulic system.
2) underfeeding or there is inappropriate solid particle in the feeding materials, will also cause damage to the plate and frame of plate and frame filter press.
3) if the liquid discharging port is blocked by solid or shut down the feed valve or valve when working, which also can cause the damage for the pressure can’t be released.
The corresponding solutions:
1) use nylon to clean the scraper and remove the mud of the inlet;
2) feeding materials until the filter cycle complete and ensure the volume of filter chamber to be the minimum.
3) check the filter cloth, clean liquid export, open the corresponding valve to release pressure
2, water seepage between filter plates
The reasons are: 1) hydraulic pressure is not enough; 2) filter cloth is wrinkled and filter cloth with holes.
The corresponding is simple, as long as increase the hydraulic pressure and replace the filter cloth in time, the water seepage will be improved obviously.
3, filter cake uneven
There are a lot of reasons caused filter cake uneven, such as underfeeding, too dilute feedings or blocking phenomenon.
And the main solutions are: increase the feedings, adjust the craft, improve the feedings, replace filter cloth and clean up the filter plates in time.
There are many problems we will met in the use of a filter press, and there always solutions to solve them. Hope this article can help you.