Automatic quantitative dust discharging device for negative-pressure dust collector

Abstract

The invention discloses an automatic quantitative dust discharging device for a negative-pressure dust collector. The automatic quantitative dust discharging device comprises a flexible sealing plate, a dust blocking plate, a rigid sealing plate, a crossbeam and a quadrilateral telescopic frame; an air inlet and an air outlet are formed in a dust collector box body, the air inlet is positioned below the air outlet, a dust removal device is installed at the upper part of the dust collector box body, the dust blocking plate is positioned at the lower part of the dust collector box body, and a filter element is installed between the dust removal device and the dust blocking plate; the flexible sealing plate and the rigid sealing plate are respectively fixed at two sides of the dust blocking plate, the top end of the dust blocking plate is fixed on the crossbeam, a hinge shaft at the lower end part of the quadrilateral telescopic frame is connected with the crossbeam, and the hinge shafts at two side end parts of the quadrilateral telescopic frame are respectively fixed on the dust collector box body and a piston; two ends of the crossbeam are installed in a slide way formed in the dust collector box body; and an empty box is arranged at one side of the bottom of the dust collector box body, a piston is installed between the empty box and the dust collector box body, and the piston is connected with a regulating valve. The automatic quantitative dust discharging device has the beneficial effects that the automatic sealing and quantitative dust discharging of the dust collector are realized by virtue of the flexible sealing plate.

Description

technical field [0001] The invention relates to a quantitative automatic ash unloading device for a negative pressure dust collector, and belongs to the technical field of dust removal devices. Background technique [0002] The dust collection equipment is equipped with a dust discharge valve at the dust discharge port to control the dust discharge. The ideal dust discharge valve should not only ensure effective dust discharge, but also prevent the external air from being sucked into the dust removal system through the dust discharge valve to affect the internal wind flow field. For explosive dust, the use of uncharged ash unloading devices is beneficial to reduce the risk of accidents, such as manual star, plug-in, drawer, and automatic flap ash unloading valves. Among them, the star-shaped ash discharge valve is the most widely used due to the advantages of small ash outlet and high sealing performance. However, once the star-shaped ash discharge valve falls into rigid mat...

AI Technical Summary

Problems solved by technology

The automatic flap type dust discharge valve can automatically discharge dust under the condition of setting the dust weight. However, the flexibility of the flap must be ensured while the sealing performance will be reduced, and the flap type dust discharge valve has many mechanical components and complex structure. High failure rate

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