A kind of back-blowing-free particle bed gas purifier and purification method

Abstract

The invention discloses a particle bed gas purifier and purification method free from back blowing, which is characterized in that: the device is of a horizontal structure and includes a casing arranged horizontally; a plurality of dust removal units are vertically arranged in the casing, each The dust removal units are all equipped with particle beds, and the left side of each particle bed is provided with a dust filter area; the bottom of the shell extends downwards with a dust collection area; when in use, the dust-laden gas is filtered and purified by the particle bed and then discharged, and the dust accumulates in the In the dust filter area, a dust filter film is formed. When the accumulation thickness exceeds the dust filter area, the excess part falls into the dust collection area under the action of gravity. The gas purifier and the purifying method of the present invention can not only save the backflushing step of the existing equipment, but also protect the dust filter membrane from being damaged, thereby improving the filtering efficiency.

Description

technical field [0001] The invention relates to a particle bed gas purifier without backflushing and a purification method, belonging to the field of environmental science and technology. Background technique [0002] The particle bed gas purification device is a commonly used device for dust removal in industrial dusty air. Blow air inlet, back blow air outlet. At the beginning of work, close the back blowing gas inlet and back blowing gas outlet, the dust-laden gas enters from the dust-laden gas inlet, passes through the particle bed to remove dust, and then leads out from the purified gas outlet, but after a certain period of use, various impurities will accumulate and dust, thus affecting the filtering effect. At this time, it is necessary to stop working, close the dust-containing gas inlet and the purified gas outlet, and use a reverse blower to blow air from the reverse blowing gas inlet, pass through the particle bed, and lead it out from the reverse blowing gas ou...

AI Technical Summary

Problems solved by technology

There are two main disadvantages in this way: first, the filtering effect is poor in the early stage of filtering

With the accumulation of dust, a dust filter film will be formed on the surface of the particle layer, making the filtering effect better. At this time, the air dust removal rate is the highest, and the back blowing will destroy the dust filter film, so that the dust removal effect in the early stage of re-use after back blowing become worse

Second, back blowing will lead to the interruption of dust removal, and the operation is relatively troublesome, and it will also lead to an increase in the manufacturing cost of the device

Images