The main method of the filter element in the filtration process is to filter from the outside to the inside. The filtration method of the filter bag is to filter from the inside to the outside. During the process of replacing the filter element, the device picks up the filter element, and the residue is dropped. Inside the filter, then in order to ensure the cleanliness of the bath, it becomes necessary to change the filter element. The filter bag is filtered from the inside to the outside. When the filter bag is replaced, the dross is dropped into the filter bag. The filter bag is filtered and cleaned.
When the filter element is filtered, its liquid will flow around it and generate a large number of bubbles. At the same time, the back pressure will increase, and the filter bag filter will be filtered more cleanly, which will inevitably increase the yield rate of the process. If the entire factory replaces the filter bag, the yield of the process will increase by 1-2 percentage points. Calculated with a monthly output value of 100 million, you can save 100-200 million per month.
During the process of classification, the filter bag can be divided into round bags and flat bags according to the shape of the cross section of the filter bag. The product can be divided into downflow, upflow and upflow according to the way it enters and exits the wind. Under the wind and DC type.
When the filter bag is used, the filtering method can be divided into the outer filter type and the inner filter type. According to the filter bag use environment and the heat-resistant procedure, the filter bag is divided into normal temperature, medium temperature, and high temperature. Fibers for filter media include cotton fibers, wool fibers, synthetic fibers, and glass fibers.
The filter media produced by the different filter fibers of the filter bag during the production process will have different properties when used. Commonly used filter material is 208 or 901 polyester wheel fabric, the use temperature is generally not more than 120 °C, after silica gel resin treated glass fiber filter bag, the use temperature is generally not more than 250 °C, cotton wool fabric is generally suitable for non-corrosive; temperature Dust-laden gas below 80-90°C.