How to Choose the Filter Mesh for Bag Filters

When using bag filters, it is essential not only to regularly inspect the inlet for surface debris but also to check whether the filter material is damaged. Below, we explain how to select the right bag filter.

When the pressure differential of the bag filter reaches a predetermined value, the automatic cleaning process begins. During this process, the water supply continues to flow, the cleaning valve opens, and the water pressure in the cleaning chamber and suction device drops significantly. The pressure differential between the filter tube, suction inlet, and cleaning chamber creates a suction force through the suction nozzle, initiating the cleaning process.

If the accuracy of the bag filter is insufficient, the filtration efficiency will significantly decrease, and impurities may not be thoroughly removed. Only filters with sufficient precision can achieve the desired filtration results. The precision of wedge wire mesh and perforated mesh can be customized, so businesses should opt for custom solutions when selecting filters.

When choosing a bag filter, ensure you select a high-quality product. Take wedge wire mesh as an example. During selection, observe whether the surface is smooth and whether the filtration quality is uniform. During operation, the scraper should function properly without interruption. Check whether the filter gaps are uniform, as uneven gaps can reduce filtration accuracy. Also, inspect the thickness of the filter; if the wedge wire mesh is too thin, it may have a shorter lifespan.

Meanwhile, the motor drives the suction pipe to perform axial spiral motion. The axial and rotational movements of the vacuum cleaner ensure thorough cleaning of the filter, both inside and outside. The entire cleaning process takes only a few seconds. Once cleaning is complete, the drain valve closes, and the filter prepares for the next cleaning cycle.