The bag filter design enters the water from the inlet, first filtering the larger particles of impurities through the coarse filter and then reaching the fine filter. During the filtration process, the fine filter gradually accumulates dirt and impurities in the water and forms a filter impurity layer. Because the impurity layer is deposited on the inner side of the fine filter, a pressure difference is formed on the inner and outer sides of the fine filter. .
When the pressure difference of the bag filter reaches a predetermined value, the automatic cleaning process will start. During this time, the clean water supply will continue to flow, the cleaning valve will open, the pressure in the cleaning chamber and the suction device will drop drastically, and the filter cartridge and the suction pipe will pass through. The pressure difference between the suction pipe and the cleaning chamber generates a suction force through the suction nozzle to form a suction process.
The bag filter is a professional liquid filtration device when used, and the entire device can effectively remove different size particles in the liquid, so that the purpose of the liquid filtration, purification, separation, and recovery can be achieved to some extent. The bag filter is mainly composed of three parts, a filter container, a support basket and a filter bag.
When the bag filter is used to filter the liquid, the liquid enters from the side or bottom of the filter container and enters the filter bag above the filter bag supported by the basket. The filter bag is expanded due to the impact of the liquid and the uniform pressure surface. The liquid material is uniformly distributed on the inner surface of the entire filter bag, and the liquid that passes through the filter bag is along the wall of the metal support basket and is discharged from the liquid outlet at the bottom of the filter.
The filtered particles are trapped in the filter bag and the filtration process is completed. In order to maintain the efficient flow of the filter and filter accuracy and ensure that the downstream liquid is not contaminated, after a period of operation should be shut down, open the filter cover, remove the retentate together with the filter bag, replace the new filter bag, change the cycle depending on the actual situation set.
The bag filter is very simple in the process of operation. When it is used, it only needs to install the filter bag with the required fineness level in the filter cartridge, and effectively check the type O when used. Whether the sealing ring is in good condition, and then tighten the annular bolt of the cartridge cover, you can put into operation.