Ash scraping device for dust remover filter element

Abstract

The invention discloses an improved ash scraping device for a pipe-type filter element dust remover, and particularly relates to an ash scraping device for a dust remover filter element. The ash scraping device comprises a scraper blade and a push-pull mechanism, wherein a plurality of filter element penetrating holes are formed in the scraper blade; rotary ring scraper disks are arranged in the filter element penetrating holes; a cavity air channel is formed in the scraper blade; an air blowing opening leading to the ring scraper disks is formed in the cavity air channel; spiral blades are arranged on the inner sides of the ring scraper disks; air inducing plates are arranged at positions, which correspond to nozzles, on the spiral blades; extending tongue shovel plates are arranged on the inner circumferential sides of the ring scraper disks at intervals. When the ash scraping device is used for cleaning gathered ash, the push-pull mechanism drives the whole scraper blade to move along the filter element so as to clean the ash on all the filter elements for one time, and the cleaning efficiency is very high; the cavity air channel is formed in the scraper blade, so that the weight of the scraper blade is reduced; furthermore, the spiral blades can be driven to rotate to implement ring scraping successfully; flow-out air can blow the gathered ash during ash scraping; moreover, the tongue shovel plates are loose, so that gathered ash cleaning is thoroughly implemented.

Description

technical field [0001] The invention belongs to the technical field of dust removal equipment for filter elements of dust collectors, in particular to a dust scraping device for filter elements of dust collectors. Background technique [0002] my country is short of oil and natural gas resources, and coal will remain the most important primary energy source for a long time to come. However, there are many problems and challenges in the process of coal conversion and utilization, such as low comprehensive utilization efficiency, serious environmental pollution, shortage of water resources, and large carbon dioxide emissions. Therefore, it is an inevitable choice for the development of my country's energy industry to develop coal efficient and clean comprehensive utilization technology to achieve energy conservation and emission reduction. The "Twelfth Five-Year Plan" for the development of clean coal technology and technology, which is encouraged by the state, includes indus...

AI Technical Summary

Problems solved by technology

More suitable for high-temperature dust removal is the dust collector with tubular filter element structure. A large amount of particle dust, as the dust continues to increase, will affect the filtration quality, so it is necessary to remove the dust accumulated on the surface of the filter element. Now the blowing pipe is commonly used, and the pulse blowing method is used to achieve reverse cleaning, but the back blowing The result is that the purified air must re-enter the pre-purified space. Since the amount of purified gas used for each injection is relatively large, the second filtration can only be re-purified, which is not conducive to improving work efficiency, and it is necessary to increase the gas boosting equipment. Yes, because the tubular nozzle can only clean the filter element corresponding to the nozzle, the nozzle cannot change the direction of blowback, and there are dead corners during the nozzle that are not easy to clean, and the accumulation of unfavorable nozzles will become more solid and difficult to remove, so it cannot be easily removed. Good and thorough dust removal; some manufacturers also design mechanical dust removal devices, such as installing brushes at the front of the manipulator, or mechanical oscillation methods, but not only the structure is complicated, but also the filter element of the dust collector is easy to damage. After the filter element is damaged, production must be stopped before the filter element can be replaced. , and the dust entering the clean air chamber of the dust collector will pollute the purified gas and bring it into the subsequent process, causing great losses. In addition, the number of filter elements is large and the cleaning efficiency is low, so it is difficult to clean the filter elements quickly

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