Overview
A cartridge dust collector is a dust collection device that uses filter cartridges as the filtering elements, or one that employs pulse jet cleaning. Based on the installation method, cartridge dust collectors can be classified into inclined insertion type, side-mounted type, hoisting type, and top-mounted type. Based on the filter cartridge material, they can be classified into long-fiber polyester cartridge dust collectors, composite fiber cartridge dust collectors, anti-static cartridge dust collectors, flame-retardant cartridge dust collectors, membrane-coated cartridge dust collectors, nano cartridge dust collectors, etc.
Working Mechanism
When dust-laden gas enters the ash hopper of the dust collector, due to the sudden expansion of the airflow cross-section and the effect of the airflow distribution plate, a portion of the coarse particles in the airflow settles in the ash hopper under the action of kinetic and inertial forces. Fine and low-density dust particles enter the filtration chamber, where through combined effects such as Brownian diffusion and sieving, the dust is deposited on the surface of the filter media. The purified gas then enters the clean air chamber and is discharged through the exhaust pipe by the fan.
The resistance of the cartridge dust collector increases with the thickness of the dust layer on the filter media surface. When the resistance reaches a specified value, cleaning is initiated. At this point, the PLC program controls the opening and closing of the pulse valves. First, the lifting valve of one chamber closes to cut off the filtration airflow. Then, the solenoid pulse valve opens, and compressed air rapidly expands in the upper chamber within a short time, surging into the filter cartridge, causing it to expand and deform, generating vibration. Under the scouring effect of the reverse airflow, the dust attached to the outer surface of the filter cartridge is stripped off and falls into the ash hopper. After cleaning is completed, the solenoid pulse valve closes, the lifting valve opens, and the chamber resumes the filtration state. The chambers are cleaned sequentially, and the period from the start of cleaning of the first chamber to the start of the next cleaning cycle is defined as one cleaning cycle. The dislodged dust falls into the ash hopper and is discharged through the discharge valve.
Product Features
1. The filter cartridge uses imported polyester fiber as the filter media, with a submicron-level ultra-thin fiber layer adhered to the standard filter media. The fibers in this adhesive layer are arranged very densely, and the extremely fine pores block most submicron-level dust particles on the surface of the filter media;
2. The pleated arrangement of the filter media increases the filtration area and makes the dust collector more compact;
3. The filter cartridge has a low height, reducing installation and maintenance workload;
4. Compared with dust collectors of the same volume, it offers a relatively larger filtration area, lower filtration velocity, and minimal resistance.
Processing Air Volume Range
500 ~ 1,000,000 m3/h, with outlet emission concentration below 30-5 mg/Nm3.
Applicable Industries
Cartridge dust collectors are widely used in various industrial fields, including but not limited to: coal-fired power plants, iron and steel smelting, cement industry, metallurgical industry, chemical industry, pharmaceutical industry, wood industry, powder recovery, grain processing, etc.
