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1. Staticpressure filter

Filter stage: when the filter plate frame closed an sealed, the slurry enter into each filter cavity visa slurry piping. Under the effect of static pressure of feed pump, filtrate enters into filtrate pipe visa filter cloth. The solid body is held back in filter cavity by filter cloth.

2. Diaphragm extruding I

Once extruding: high pressure water (high pressure air) enter into the diaphram above visa hosepipe, diaphragm extruding filter cake to the surface orientation of filter cloth, the filter cloth changes is thinner and extrude the remained filtrate out of filter cake.

3. Filter cake washing

Washing(optional stage): use the same method with slurry, the washing liquid is transmitted to filter cavity by pump, due to that washing liquid filled in filter cavity, diaphragm is raised, washing liquid inflow into filtrate pipe visa filter cake and filter cloth under the pressure of pump.

4. Diaphragm extruding II

Twice extruding (optional stage): after washing stage, the washing liquid left in filter cavity will be extruded from filter cake by the method in the second stage, and realize displacement washing fuction.

5. High pressure air passes filter cake for drying

Air drying: The compressed air entered into filter cavity takes away the moisture left in the filter cake particles, reduces the moisture content of filter cake to the optimum degree, at the same time, to empty the filtrate in filter cavity.

6. Automatically filter cake unloading and automatically filter cloth washing

Filter cake discharge: when the drying process is completed, plate frame components are opened, filter cloth drive mechanism start running, the filter cake on filter cloth discharged automatically from both sides (or one side) of pressure filter, meanwhile washing water powerfully wash the filter cloth visa high pressure spray nozzle.

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