Inverted cone type whirl wind dust collector is an exploitation to contain dust air from enter a place with a draught to follow a tangent direction into in addition to follow tube wall to revolve inside dust machine, lend a function of leave the mental exertion, The dust grain sinks to gradually in addition to inside the dust mathine lower part ash Dou. in the meantime, the air of the empress of the decontamination follow in addition to the dust machine give vent to anger of upper of part gets into the next class in addition to inside dust machine. Ash Dou inside of the dust be periodically ejected by the row ash door.

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