Working principle of FMQD air box pulse bag filter

FMQD type air-box pulse bag filter is a commonly used equipment for dust control, which works by capturing dust through filter bags and then removing it through pulse cleaning technology to achieve the purpose of purifying the air.

Specifically, the FMQD type air-box pulse bag filter is mainly composed of an air-box, filter bags, and a cleaning system. When gas containing dust enters the air-box, it passes through the primary filter and enters the inside of the filter bag. The filter bag is usually made of polyester, acrylic fibers, and other materials, with a microfiber layer covering the surface, where the dust settles.

To prevent the accumulation of dust on the surface of the filter bag from affecting the dust removal effect, regular cleaning is required. The pulse cleaning system adjusts the spraying gas through an electrical control signal, allowing the expanded spraying gas to enter the inside of the filter bag through a nozzle, removing the adhered dust and regenerating the filter bag. The frequency of pulse spraying and cleaning cycle can be adjusted according to different operating conditions.

Finally, the clean gas passes through the outlet at the top of the filter bag and enters the exhaust pipe for discharge. It is highly efficient, reliable, and environmentally friendly, and does not cause secondary pollution to the environment.

In conclusion, the FMQD type air-box pulse bag filter is a high-efficiency, reliable, and environmentally friendly equipment for dust control, with a simple and clear working principle that is easy to operate and maintain. It is widely used in many industrial fields, such as cement plants, steel plants, metallurgical plants, chemical plants, tobacco plants, etc.