Factors Affecting Dust Removal Efficiency of Dust Filter Bags

The dust removal efficiency of film-coated room temperature dust removal bags directly impacts the performance of bag filters. When using and selecting these bags, attention must be paid to their maintenance. Proper maintenance not only extends the service life of the bag filter but also significantly influences the dust removal effectiveness of film-coated room temperature dust removal bags.

Based on experience gained from bag filter production and film-coated room temperature dust removal bags, the dust removal efficiency of film-coated room temperature dust removal bags can be enhanced by considering the following factors:

• Sealing of Dust Removal System: The dust removal system consists of the bag dust collector body and associated equipment such as star discharge, inlet and outlet valves, conveyors, and pipelines. Strengthening the sealing of inspection holes and doors is essential. Double doors can be employed for inspection doors, with heat-resistant silicon rubber seals used around the doors. It is also crucial to maintain the sealing of transportation equipment to minimize air leakage.

• Continuous Welding of Shell Connections: Ensuring the continuous welding of all shell connections is vital to prevent leaks or openings, as door holes and cleaning/blanking parts are prone to leakage. Regular inspections and spot checks of the dust collection system should be conducted to assess the integrity and tightness of the ducts, shell, upper flower plate, and other components. Prompt repairs should be made to any worn parts.

• Reduction of Dust Load and Concentration: Technical requirements exist for the inlet concentration, temperature, and wind speed of the dust collector during design. In cases where the production system undergoes modifications that may require increased wind speed or capacity, it is important to consider the dust collector's capacity and potential outcomes. Proper matching between the dust load and dust collector capacity is crucial.

• Minimization of dust collection bags Damage: It is important to minimize damage to film-coated room temperature dust removal cloth bags and ensure that the nozzle's centerline aligns with the filter bag's centerline during bagging and spot inspections. Misalignment can result in damage to the easy-cleaning gray iron needle felt at the filtration bag's outlet.