Working principle and characteristics of cyclone dust colle...

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  • Jimmy at
  • February 12, 2019

    The cyclone that we usually use is a dust removal device that uses the centrifugal force generated by the rotating airflow to separate the dust particles from the dusty airflow. The utility model has the advantages of simple structure, small volume, no special auxiliary equipment and low cost. The resistance is medium, there are no moving parts in the device, and the operation and maintenance are convenient. Cyclone dust collectors are generally used to capture particles above 5-15 microns. The dust removal efficiency can reach more than 80%. In recent years, the improved cyclone dust collector has improved dust removal efficiency of more than 5%. The disadvantage of cyclone dust collectors is that the efficiency of trapping particles smaller than 5 microns is not high.

                    cyclone dust collectors

Overview of the movement of air and dust particles in a cyclone:

    The majority of the swirling airflow is self-circular along the wall, spiraling from top to bottom toward the bottom of the cone, forming a descending externally swirling dusty airflow. The centrifugal force generated during the intense rotation will be much denser than the gas. The dust particles smash toward the wall, and once the dust particles come into contact with the wall, they lose the inertial force and fall along the wall surface into the ash hopper by the momentum of the inlet velocity and their own gravity. The rotating descending airflow reaches the bottom of the cone. Turn up along the axis of the dust collector. A rising internal swirling flow is formed and discharged by the exhaust pipe of the precipitator.

    Another small part of the airflow from the air inlet flows to the top of the cyclone and then flows down the outside of the exhaust pipe. When the lower end of the exhaust pipe is reached, the upward center airflow is reversed. Discharged together from the snorkel, the dust particles dispersed in it are also accompanied by the dust collector


    Easy operation and maintenance, medium pressure loss, low power consumption, low operating and maintenance costs.

    The operation is more flexible and the performance is stable, and is not limited by the concentration and temperature of the dust-containing gas stream.

    The structure is simple, the body has no moving parts, no special accessory equipment is required, the floor space is small, and the manufacturing and installation investment is small. There is no special requirement for the physical properties of dust. At the same time, according to the different requirements of chemical production, different materials can be used to fabricate or line various kinds of wear-resistant and heat-resistant materials to improve the service life.