Combination filter cartridge dust collector; It has the characteristics of cleaning, dust removal, and low emission concentration of a pulse jet dust collector, as well as stability, low energy consumption, and small footprint, making it particularly suitable for handling high air volume flue gas. Its various advantages have gradually been recognized by many users and widely welcomed. It has been adopted in steelmaking electric furnaces, abrasive smelting, calcium carbide furnaces, blast furnace gas purification, coal powder preparation and pneumatic conveying, asphalt concrete production, carbon black, building materials, refractory, chemical, aluminum electrolysis, aluminum zinc smelting, etc.

The combined filter cartridge dust collector is mainly composed of an upper box, a middle box, an ash hopper, an ash unloading system, a blowing system, and a control system, and can adopt various intake chamber structures. The dusty flue gas enters the ash hopper through the lower part of the middle box through the air inlet; Some larger dust particles fall directly into the ash hopper due to inertial collisions, natural settling, etc., while other dust particles rise with the airflow and enter various bag chambers. After being filtered by the filter cartridge, the dust particles are trapped on the outside of the filter cartridge. The purified gas enters the box through the filter cartridge of the dust collector, and is then discharged into the atmosphere through the lift valve and air outlet. The dust in the ash hopper is periodically or continuously discharged by the screw conveyor and rigid impeller unloader. As the filtration process continues, the accumulation of dust on the outside of the filter increases, leading to a gradual increase in the resistance of the filter cartridge dust collector itself. When the resistance reaches the preset value, the dust cleaning controller sends a signal to close the lift valve of a filtering chamber to cut off the filtered airflow in that chamber. Then, the electromagnetic pulse valve is opened, and compressed air is sequentially sprayed from the air source through the air bag, pulse valve, and nozzle on the spray pipe at a certain time towards the filter cartridge. Compressed air rapidly expands inside the box, causing high-frequency vibration deformation of the filter cartridge. In addition, the effect of reverse airflow causes the dust cake attached to the outside of the filter bag to deform and fall off. After fully considering the settling time of dust (the detached dust can fall into the ash hopper), the lift valve is opened, and the filter cartridge of this bag chamber returns to the filtering state, while the next bag chamber enters the cleaning state, until the cleaning of the next bag chamber is completed For one cycle.

Combination filter cartridge dust collector; It is composed of multiple independent rooms, and each room is cleaned in sequence without interfering with each other, achieving long-term continuous operation. The above dust cleaning process is automatically controlled by a dust cleaning controller at fixed time or pressure.