Technology for uniformly distributing fume flow in large bag-type dust collector

Abstract

The invention relates to a technology for uniformly distributing fume flow in a large bag-type dust collector. According to the technology, a box of the bag-type dust collector and members of the box are involved; an air flow inlet channel and a filter bag for filtering are arranged in the box; and perpendicular air flow partition plates, inclined air flow guide plates and opposite rushing air flow adjustment ports which are perpendicular to the air flow partition plates are arranged in an ash hopper in the box. The inclined air flow guide plates have a certain inclination angle, and concentrated air flow entering the dust collector is uniformly guided to be divided. Two ends of each perpendicular air flow partition plate are connected with the ash hopper of the box of the dust collector, fume entering the dust collector is completely divided in a certain range, and the bar-shaped opposite rushing air flow adjustment port is formed on each perpendicular air flow partition plate. An air flow rectification section is kept between the top of each perpendicular air flow partition plate and the bottom of the filter bag of the dust collector, and the space distance is 0.6 to 1.2 times the distance between the air flow partition plates in the dust collector.

Description

technical field [0001] The invention relates to a technique for evenly distributing flue gas flow in a dust collector, in particular to a technique for uniformly distributing flue gas flow in a large bag filter. Background technique [0002] Since the airflow distribution in the dust collector is mainly affected by the air intake direction of the equipment, a high-speed vortex must be formed in the general dust collector, especially for a large bag filter, the flue gas flow forms a large swirling vortex in the dust collector. Therefore, the uniform distribution of air flow has a key impact on improving the dust removal or purification efficiency of the system. Most of the existing dust collectors do not have an air distribution device. Even if some equipment is equipped with an air distribution device, most of them cannot achieve the expected effect because they have not been tested. Therefore, there are still medium-sized vortexes in the equipment. The lower end of the fil...

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Problems solved by technology

[0004] The present invention divides the large vortex in the dust collector into multiple medium-sized vortexes through the four steps of airflow diversion, separation, counter-airflow impact vortex, and rectification, and then uses part of the airflow to counteract the rotating vortex, Destroy the medium-sized vortex, and use the space between the air separation plate of the dust collector and the bottom of the filter bag to integrate the air flow, so that the air flow rate in the dust collector can be reduced and evenly distributed, which solves the problem of large or medium-sized vortexes in the dust collector. The problem of uneven air distribution in the device

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