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Structure and working principle of bag filter

2024-06-21 15:25

The bag filter is a pressure filter device, which mainly consists of a filter cylinder, a filter cylinder cover and a quick-opening mechanism, a stainless steel filter bag reinforced screen and other main components. The filtrate flows into the filter bag through the side inlet pipe of the filter shell. The filter bag itself is installed in the reinforced mesh basket. The liquid can obtain qualified filtrate by penetrating through the filter bag with the required fineness grade, and the impurity particles are intercepted by the filter bag.
Structure and working principle of bag filter

The bag filter is a pressure filter device, which mainly consists of a filter cylinder, a filter cylinder cover and a quick-opening mechanism, a stainless steel filter bag reinforced screen and other main components. The filtrate flows into the filter bag through the side inlet pipe of the filter shell. The filter bag itself is installed in the reinforced mesh basket. The liquid can obtain qualified filtrate by penetrating through the filter bag with the required fineness grade, and the impurity particles are intercepted by the filter bag. The machine is very convenient to replace the filter bag, and the filter basically has no material consumption. The bag filter has many advantages, such as reasonable structure, good sealing, strong circulation ability, simple operation and so on. In particular, the filter bag side leakage probability is small, can correctly guarantee the filtration accuracy, and can quickly change the filter bag, so that the operating cost is reduced. The inner and outer surfaces of the filter are solved by mechanical sandblasting and polishing, which is average and easy to clean. We know that the filtering method adopted by the bag filter is a side-in-side-out method, or a side-in-bottom-out method. The filtered liquid medium is pressed into or pumped into the bag filter barrel through the pressure in the pipeline. The liquid medium to be filtered is filtered by the filter bag supported by the filter blue through electropolishing punching, and the changed solid-liquid reaches the filtered result of the liquid medium respectively. The structural design of the bag filter is that the top cover and the filter cartridge are sealed and locked by four sets of rocker head bolts, so that the filter can withstand extremely high filtration pressure and water hammer pressure impact. The bag filter is composed of a filter cartridge, a filter basket, and a filter bag. The structure is compact and simple; the liquid to be filtered enters the filter bag through the inlet of the filter, and flows into the filter bag. After being intercepted by the filter bag, the filter outlet Outflow. The import and export design of the bag filter generally adopts the side-in and bottom-out mode, which is convenient for cleaning.