The use of filter press pump is characterized by high flow and low head at the beginning of the feed, and small flow and high head at the later stage, which requires higher pump requirements. Attention should be paid to the installation and use of the feed pump of the filter press.

Filter press pump installation pay attention to points:

1. The inlet and outlet of the pump should be installed with valves and rubber seismic joints (pipeline compensator) to facilitate maintenance.

2. In the installation sequence of the pump, the inlet and outlet pipelines should be installed first, and then the anchor bolts should be fixed to prevent the tensile stress on the pump and damage the pump when connecting the pipelines.

3. If the outlet pipeline is long or the installation position of the filter press pump is high, a check valve should be installed at the pump outlet to prevent the impeller from reversing due to the destructive force and backflow caused by the outlet high-pressure water hammer on the pump during shutdown.

4. Pump import and export pipeline configuration: in order to reduce the pipeline flow resistance, improve the efficiency of the pipeline, pump into the outlet pipe diameter should be greater than the pump into the outlet diameter.

5. In order to see the operation of the pump more intuitively, a pressure gauge should be installed at the outlet of the pump, which is located on the straight line between the first valve at the outlet of the pump and the outlet of the pump.

6. The import and export pipeline of the pump should be equipped with a gravity support system, and the pump cannot bear the weight of the pipeline.

7. The setting of the return pipe: under the normal working condition of the filter press pump, when the pump reaches a certain pressure and the flow rate is less than 30% of the rated flow rate, the valve on the return pipe must be opened for diversion, which can not only stabilize the pressure in the filter press, but also ensure that the material in the pump cavity always remains in a liquid state containing a certain amount of water. Otherwise, the pressure in the filter press will drop, and the material in the pump cavity will be dried under the action of centrifugal force due to pressure suppression, which will increase the friction between the material and the pump and shorten the service life of the pump.