Working principle of pulse bag dust collector in cement plant of Hebei Feixiang Environmental Protection Equipment Co., Ltd.:
The pulse single machine dust collector is a small bag filter designed after improvement. The technology of using high-pressure (0.5-0.7MPa) high flow pulse valves to blow and clean each filter bag one by one has the characteristics of high cleaning energy, light weight, simple and compact structure, easy installation, and convenient maintenance (external filter type).
The working principle of pulse bag filter in cement plant:
The dusty gas enters the ash hopper through the air inlet or enters the filter bag chamber through an open flange. The dusty gas is filtered through the filter bag into clean gas and enters the clean gas chamber. It is then discharged by the fan through the clean gas exhaust port. Dust accumulates on the outer surface of the filter bag and continues to increase, causing the resistance of the filter bag dust collector to constantly rise. In order to ensure that the equipment resistance does not exceed 1200Pa and the bag dust collector can continue to work, the dust on the filter bag needs to be removed regularly. Dust cleaning is achieved by the program controller timing and sequentially starting the pulse valve, causing compressed air (0.5-0.7MPa) inside the bag to be blown out from the injection hole (referred to as primary air) through the Venturi tube to induce surrounding air (referred to as secondary air) several times the flash air into the filter bag, causing the filter bag to rapidly expand in an instant and shake off dust with the reverse action of the airflow, achieving the purpose of dust cleaning.
