Particle matter moving bed dust removal device and dust removal method used by dust removal device

Abstract

The invention relates to the technical field of dust-containing air treatment devices and in particular relates to a particle matter moving bed dust removal device and a dust removal method used by the dust removal device. The particle matter moving bed dust removal device comprises a particle bed, a particle injection conveyor, a particle ash removal device and an injection bed, wherein a first air inlet and a first air outlet are formed in the particle bed; the lower end of the particle bed is connected with the lower end of the injection bed by a particle conveying pipe; the upper end of the injection bed is connected with the particle ash removal device by the particle conveying pipe; the particle ash removal device is connected with the upper end of the particle bed by a descending pipe; an air injection opening of the particle injection conveyor is connected with one end of the particle conveying pipe positioned at the lower end of the particle bed; the particle injection conveyor is inserted in one end of the particle conveying pipe by the air injection opening; a waste air outlet is formed in the particle ash removal device. According to the device and the method, dust-containing particles are pre-cleaned by adopting the injection bed, so that the separation efficiency of the dust-containing particles is improved, the cleanness of particles subjected to secondary air dust removal is ensured, and further the dust removal efficiency of the dust removal device is improved.

Description

technical field [0001] The invention relates to the technical field of dust-containing gas processing equipment, in particular to a particle moving bed dedusting device and a dedusting method thereof. Background technique [0002] At present, the granular bed used for gas filtration and dust removal can be divided into three basic modes: fixed bed, moving bed and fluidized bed according to the state of particle flow. The filtration efficiency of fluidized bed filter dust removal is low, and it can only be used for primary dust removal, and its application is seldom. The method of fixed bed filtration and dust removal has a high filtration efficiency when the particle layer is stationary; however, as an important part of the screen to support the particle layer and make the air flow evenly through the particle layer, the phenomenon of screen blockage and material leakage is prone to occur, and the screen The net cannot be made of high-temperature-resistant materials with poo...

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Problems solved by technology

[0003] The particle moving bed filter and dust collector in the prior art usually adopts a splint or screen structure, which has a complex structure, thin components, easy to cause uneven heating, and the large area affects the high temperature and high pressure resistance of the filter and dust collector; Directly pass the dusty gas into the filter dust collector without pre-collection of dust particles, so that the particle size in the moving bed is uneven, and larger particles will generate gaps when absorbing large dust particles, which is not conducive to fine dust particles The absorption of dust, especially the absorption of fine dust particles less than 10 μm is not obvious; in the process of particle recycling after gas dust removal, only the particle cleaner is used to remove dust particles once, which will make the particle cleaner clear dust Incomplete, the particles falling into the particle bed will also carry dust, and the separation efficiency of particles and dust is low

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