Filtering device and dedusting equipment with same

Abstract

The invention discloses a filtering device, comprising a dust collecting chamber and a spiral air inlet passage arranged at the air inlet side of the dust collecting chamber as well as a filter arranged in the dust collecting chamber and a clapboard fixedly connected with the filter, wherein the clapboard surrounds at least 90% of one circle of the filter, the outer edge of the clapboard is close to the inner wall of the dust collecting chamber, the head end and the tail end of the clapboard have preset distance along the axial direction of the filter to form an opening, and the opening faces the spiral extending direction of the spiral air inlet passage. Most impurities are separated from the gas at the opening before entering the filter, so that impurities entering the filter are greatly reduced, dedusting pressure of the filter can be effectively reduced, and the service life of the filter can be prolonged. Meanwhile, the clapboard divides the dust collecting chamber into a cyclone working chamber and a dust collecting chamber, the length of the cyclone working chamber along the axial direction can be shortened, the centrifugal force of air current can be promoted, and the dust precipitating capability of the filtering device can be strengthened. The invention also provides dedusting equipment with the filtering device.

Description

technical field [0001] The invention relates to the technical field of dust removal, in particular to a filtering device. The present invention also relates to a dust removal device provided with the above filter device. Background technique [0002] With the rapid development of economic construction, the requirements for the environment are getting higher and higher, and various dust removal equipments have emerged as the times require. The dust removal equipment generally uses a motor to rotate at a high speed to generate negative air pressure in the sealed casing to absorb dust. . Portable vacuum cleaner is a kind of dust removal equipment, which is popular among users for its lightness, compactness, and especially its ability to be used in areas with small spaces. [0003] Please refer to figure 1 and figure 2 , figure 1 It is a schematic structural diagram of a typical filter device, and the direction indicated by the arrow in the figure is the movement direction...

AI Technical Summary

Problems solved by technology

[0007] However, in some dusty places, figure 2 The shown filter device is difficult to meet the dust collection requirements, which affects the applicability of the dust removal equipment, especially in some dust removal occasions. When the filter device is inverted, the dust concentrated at the end of the dust collection chamber 12 will return to the near One end of the filter makes the dust move in the whole space of the dust collection chamber 12, the dust removal burden of the filter 11 is still relatively large, and the dust removal efficiency of the dust removal equipment is difficult to guarantee

Images