How does the needle felt filter bag work in an asphalt concrete mixing plant factory?

The bag house of asphalt concrete mixing plant is a common industrial dust collection equipment, and its working principle is as follows:

Dust collection: The dust generated by the asphalt concrete mixing plant is guided through pipelines to the interior of the filter bag dust collector.

Filter dust: After the dust enters thefilter bag dust collector, it is filtered through the filter material on the surface of the needle felt filter bag. The material forneedle punched filter bagsis usually polyester fiber needle punched felt, aramid fiber needle punched felt, etc. Its fine and dense fiber structure can effectively capture dust particles.

Dust deposition: After being captured by the filter bag, dust particles gradually deposit on the surface of the filter bag under the action of gravity.

Dust removal process: Over time, dust gradually accumulates on the surface of theneedle felt filter bag, which can affect the filtering effect of the dust collector. In order to maintain the efficiency of the dust collector, it is necessary to carry out ash cleaning operations. The dust removal process usually uses pulse blowing, which sprays pulse airflow into the interior of the filter bag through compressed air, causing the filter bag to vibrate, thereby shaking off and removing dust.

Collection and processing of dust: The dust that falls during the dust removal process is collected and discharged into the dust collector through pipelines, and then further processing is carried out, such as collecting it into a dust bin or dust treatment equipment.

The filter bag dust collector and needle felt filter bag effectively remove the dust generated by the asphalt concrete mixing plant through the above working principle, ensuring the cleanliness of the working environment and the health and safety of personnel.