Segmented pulse backflushing air filter core regenerating system and method

Abstract

The invention relates to the technical field of air purification, in particular to a segmented pulse backflushing air filter core regenerating system and a segmented pulse backflushing air filter coreregenerating method. The segmented pulse backflushing air filter core regenerating system comprises a dedusting box, filter cores mounted inside the dedusting box, and a pulse gas source arranged onthe outer side of the dedusting box, wherein a gas outlet and a gas inlet are formed in the upper side and the lower side of the dedusting box respectively; a partition board for fixing the filter cores is further arranged inside the dedusting box; the partition board is in interference fit with the dedusting box; inner holes are formed in the partition board; mechanical ash-cleaning pipes are arranged on the partition board at the lower ends of the inner holes; the bottoms of the mechanical ash-cleaning pipes are hermetically connected to the upper ends of the filter cores; a blowing pipe isarranged at the upper end of the dedusting box; the blowing pipe is connected with the pulse gas source; nozzles are formed in the lower end of the blowing pipe and in positions corresponding to the vertical positions of the filter cores. By virtue of segmented pulse blowing, through early release of an auxiliary pulse blowing gas flow, the weakening effect of the filtered gas flow inertia on a main pulse gas flow can be reduced and the entrainment effect of the main pulse blowing gas flow can be enhanced.

Description

Technical field [0001] The invention relates to the technical field of air purification, in particular to a segmented pulse back-blowing air filter element regeneration system and a method thereof. Background technique [0002] Filtering dust removal technology has high dust collection efficiency and is widely used in industrial processes such as electric power, steel, cement, mining, and pulp. As dust accumulates on the filter element, the running resistance of the dust removal system will increase. At this time, it is necessary to clean the dust attached to the filter element. Nowadays, pulse injection technology is widely used, with simple process and structure, good dust removal effect and high stability. However, there are some problems with pulse jet cleaning. In the process of pulse cleaning, the relatively small dust particles on the filter element are stripped by the cleaning, but because of their small specific gravity, they immediately sink and float around the filter...

AI Technical Summary

Problems solved by technology

However, there are some problems in pulse jet cleaning. During the pulse cleaning process, although the relatively fine dust particles on the filter element are removed by the cleaning, they immediately sink due to the small specific gravity and suspend around the filter element. When the transient pulse After the air flow stops suddenly, the unsettled dust will be re-adsorbed on the surface of the filter element, resulting in poor cleaning effect

Moreover, the pulse airflow during the cleaning process will be weakened by the filtered airflow, which reduces the pulse injection efficiency.

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