Factories undertaking dust removal transformation often hesitate between cartridge filter and bag filter. The two core dust capture components differ greatly in structural design and applicable scenarios, improper matching will cause high pressure drop, frequent replacement and substandard emission data. This article sorts out core differences for project reference.
Bag filter adopts cylindrical filter bag matched with supporting cage, owning large single set dust holding capacity, suitable for large cement plant thermal power station high concentration dust flue gas treatment. Longer service cycle reduces replacement frequency for continuous mass production workshops. The occupied space is wider, requiring dedicated installation area for complete bag filter system layout.
Cartridge filter uses folded pleated filter material, the filtration area per unit volume reaches three to five times of bag filter, fitting small space workshop with limited factory building area. It achieves over ninety nine point nine percent capture rate for submicron fine dust, meeting ultra low emission standards required by electronics pharmaceutical and precision machining industries.
Bag filter replacement operation only needs single disassembly of each filter bag, spare parts procurement cost is low for large scale projects. Cartridge filter integrated folded structure improves filtration precision yet brings higher single unit purchase price. Small batch low dust concentration factories gain long term cost advantage by choosing cartridge filter, while heavy dust large air volume projects prefer bag filter.
Bag filter fits high temperature high corrosion high dust concentration industrial flue gas scenarios with customizable high temperature resistant filter media including PTFE and Nomex. Cartridge filter supports PTFE membrane coating for fine dust interception, suitable for normal temperature low concentration clean production workshops. Combined collocation of both can build multi stage dust removal system for complex mixed working conditions.
