A granular bed dust collector

Abstract

The invention discloses a particle bed dust collector, which comprises an outer casing and at least one layer of particle bed filters vertically arranged inside the outer casing, the upper part of the outer casing is provided with a dust-containing gas inlet, and the lower part of the outer casing is A dust discharge port is provided, and each layer of granular bed filter includes at least one filter unit, each filter unit has a dust-containing gas vent and a clean gas vent, and the characteristic is that a dust pre-separation chamber is also provided inside the outer shell, and the dust pre-separation chamber is The separation chamber is connected to the dust-containing gas inlet and the dust discharge outlet. The dust pre-separation chamber is equipped with an inertial separation deflector. The dust-containing gas entering the dust pre-separation chamber is pre-separated by the inertial separation deflector and then enters through the dust-containing gas vent. In the filter unit; the advantage is that most of the dust larger than 10 microns is pre-separated under the action of the inertial separation deflector, which greatly reduces the filtration burden of the filter unit, so it can be used for dust removal and filtration of dusty gas with a large dust concentration. Dust removal effect is good.

Description

technical field [0001] The invention relates to a dust removal device, in particular to a particle bed dust collector. Background technique [0002] The granular bed filter dust collector adopts high temperature resistant granular filter material, which has unique advantages in the field of high temperature gas dust removal. For example, the invention patent "a granular bed filter dust collector" announced by China (application date is January 31, 2007, publication number is CN101036846A, patent number is ZL200710067109.7), which includes an outer shell and a shell set along the height direction There is at least one layer of filtering device in the body. The upper part of the outer casing is provided with a dust-containing gas inlet, and the lower end of the outer casing is provided with a dust outlet. The filtering device is equipped with an independent gas reversing device, which is connected to a clean gas main pipe and The back blowing air main pipe is characterized in...

AI Technical Summary

Problems solved by technology

However, the particle bed filter dust collector has the following problems: when the dust concentration of the dust-containing gas fed into the dust-containing gas inlet is small, the filter dust removal effect of the particle bed filter dust collector is relatively good; When the dust concentration of the imported dusty gas is relatively high, the dust removal effect of the particle bed filter dust collector is not ideal. In order to achieve a better filter dust removal effect, it is usually necessary to install a pre-dust collector upstream of the particle bed filter dust collector , but another pre-dust collector will not only increase the cost, but also increase the pressure drop

Images