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Principle of pulsed bag-filter technology and matters needing attention

The article citations:This web site    sentiment:125    Published time:2019-08-16 16:45:31

Principle of pulsed bag-filter technology and matters needing attention

Pulsed bag filter is a dust removal device with high utilization rate of industrial dust treatment, which has high purification efficiency, large gas treatment capacity, stable performance, convenient operation, long filter bag life, and small maintenance workload, and is applied to dust removal treatment in various industries.

Pulsed bag filter is a dust removal device with high utilization rate of modern industrial dust treatment. Due to its advantages such as high purification efficiency, large gas treatment capacity, stable performance, convenient operation, long filter bag life and small maintenance workload, it is widely used in dust removal treatment of various industries. Our company is committed to developing new environmental protection technologies, promoting clean environmental protection technologies in the industrial field, carrying out environmental protection treatment from the source of pollution, and developing pollution treatment technologies suitable for various complex working conditions, so as to meet the various needs of the market.

Principle of pulsed bag filter technology

Filtering principle: when the dust flow enters the dust bucket of the dust collector from the lower part of the box, due to the sudden expansion of the cross section area of the flow, the flow rate decreases, part of the flow of large particles, large density of dust and dust condensate particles in the centrifugal force, and gravity along the wall of the rotary fall dust bucket; Fine particle size and small density of fine dust particles suspended in the gas through the air distribution device, uniform into the filter chamber and diffuse in the gap of the filter bag, through the inertial collision of the filter bag surface, screening and other functions and deposition on the filter bag surface, purification gas discharged by the main fan.

Principle of dust cleaning: as the dust constantly adheres to the outer surface of the filter bag, the dust layer is continuously thickened, and the resistance value of the dust collector increases accordingly; When the resistance value to value, pulse dust removal control instrument issued instructions, control pulse valve open, high pressure air bags of compressed air through the pulse valve flow to the spray holes on the blowpipe, and XiangWenShi ejecting a high speed and high pressure pipe of the ejector flow, forming a is equal to the number of the ejector flow volume times the induced airflow, the dust bag outside under the action of mechanical force falls off from the bag outside, falling into the hopper, purpose of ash removal; When the bag resistance drops to the lower limit, the flying mechanism stops working to maintain the continuous operation of the dust collector.

Notes for use of pulsed cloth bag filter:

A. the compressed air should be connected to the air storage tank, the control power should be connected, and the ash discharging device should be started. If there are other devices in the system, the downstream equipment should be started first.

B. Put the filter bag on the outside of the bag distance rack, and press the bag mouth and guide mouth with layering to prevent air leakage. Then insert the bag into the flower board carefully to avoid the filter bag being scratched or scratched. The taper pin at the tail end is inserted into the corresponding positioning ring of the lower bracket, and the groove apron is placed under the upper guide frame with a pressing plate and the inclined pin is pressed tight.

C. During ash cleaning, the same effect can be achieved on line and off line by adjusting the dust collector parameters.

D. When the electromagnetic pulse valve fails, it should be removed in time. If there are impurities and moisture inside, it should be cleaned.

E. When the dust removal accessories stop working, dust removal shall be carried out on the dust removal accessories repeatedly to remove the dust from the dust filter bag to prevent the bag from being pasted due to the influence of moisture.

F. Stop and check the filter bags regularly. If any damage is found in the filter bags, the filter bags should be replaced in time.


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