The working principle of large pulse bag filter
2019-04-03 08:15:27 Click: 260
The working principle of the dust collector is as shown in the figure. During operation, the dust-containing gas is evenly distributed to the filter bag chamber of each unit by the air intake manifold of the dust collector through the intake manifold, and the airflow section is actually enlarged. Or the function of the deflector, a part of the large particle dust in the airflow falls into the ash bucket due to inertia, and the small dust of the particles is blocked by the action of the sieving, inertia, adhesion, diffusion and static electricity, and is retained on the outside of the filter bag. The gas of trust enters the bag and is collected into the clean room and discharged through the exhaust pipe. As the filtration progresses, the dust particles gradually form a dust layer on the surface of the filter bag due to adhesion, retention, and the like. As the dust on the surface of the filter bag increases, the resistance of the filter bag rises. When the pressure difference of the filter bag chamber reaches the set value or runs to the set time, the controller sends a signal, and the poppet valve closes the row of the filter bag chamber of the unit. The port makes the room offline. At this time, the compressed air is injected into the filter bag of the unit filter bag chamber from the nozzle on the blowing pipe by the air bag through the pulse valve, and is blown by the group. After the end of the spraying, the poppet valve is opened, and the filter bag is restored to the filtered state. Similarly, the remaining filter chambers of each unit are sequentially controlled by the program controller to perform the above-described blowing cycle to achieve the purpose of cleaning. Finally, the dust that has fallen off the ash hopper by the expansion of the filter bag and the reverse acceleration is sent away by the ash conveying device.
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