Electronic industry is one of the fastest growing industries in China. Electronic products are indispensable in all walks of life. Due to the large number of electronic products manufacturing enterprises, a variety of organic and inorganic substances are used in the production process, including heavy metals and many toxic and harmful substances. Pollutants (especially the discharged wastewater) have the characteristics of a variety of toxic, toxic and carcinogenic substances. Compared with metallurgy, chemical industry and other industries, the harmful effects of these pollutants on the social environment and people's life are more hidden.

Bag filter has the characteristics of reasonable structure, good sealing and simple operation, which is very suitable for the treatment of wastewater in the electronic industry.

The filter bag side leakage probability of the bag filter is small, which can correctly ensure the filtration accuracy, and the filter bag can be quickly replaced, thus reducing the operation cost. The inner and outer surfaces of the filter are mechanically sandblasted and polished, which is a common and easy to clean method. We know that the filter method of bag filter is side in and side out. The way of side in and bottom out can also be used to press or pump the filtered liquid medium into the bag filter barrel through the pressure in the pipeline. The way of side in and bottom out can also be used to press or pump the filtered liquid medium into the bag filter barrel through the pressure in the pipeline. The liquid medium to be filtered is filtered by electropolishing and punching filter bags supported by filter blue, and the changed solid and liquid achieve the effect of filtering liquid medium respectively.

When filtering high viscosity liquid, compressed air can be introduced through the exhaust valve to accelerate the discharge of residual liquid and shorten the waiting time. Note that the air used for pressurized discharge must be stable and the pressure should not exceed the working pressure of the filter.

To sum up, the bag filter is suitable for filtering cooling water, clearing impurities in copper foil electrolytic stabilization cell, filtering chemical slurry and removing oil in copper foil production. It provides a guarantee for the development of the electronic industry and improves the economic benefits.