Filter drum type precipitator

Abstract

The invention discloses a filter cartridge dust collector. The dust collector comprises a case body which is provided with an air inlet and an air outlet, a plurality of filter cartridges which are obliquely arranged inside the case body, and a dust cleaning device which blows compressed air into the filter cartridges from an open end above the filter cartridges. The inside of the filter cartridges is fixedly provided with a core tube with an upper end head sealed along the extension direction of the filter cartridges, and a cavity is arranged between the core tube and the filter cartridges. As the filter cartridges are internally provided with the core tube, the compressed air blown from the dust cleaning device can only pass from the cavity arranged between the core tube and the filter cartridges, thus reducing the blowing area in the filter cartridges; the air velocity of the blowing airflow is increased on the premise of blowing the same air flow quantity, which causes the blowingairflow to fully contact filter materials and improves the dust cleaning efficiency. As the dust cleaning efficiency is improved, even the dust which is fully stuck to the filter materials can be fully removed, thus being capable of properly increasing the filtration air velocity and indirectly improving the dedusting efficiency.

Description

technical field [0001] The invention relates to a dust removal device which uses a filter cartridge to separate solid dust particles in gas. Background technique [0002] Among the various dust removal products at present, it is a common technology to use filter cartridges to filter dust. For example, the utility model with the patent No. ZL99228768.5 discloses a sinking flow multi-tube dust collector, the flue gas enters from the air inlet at the top, and uses gravity and downward air flow to pass through the filter cartridge, so that the dust is filtered by the filter cartridge , fall, and collect to the bottom of the dust collector box. Clean air after dust removal is sent from the exhaust port, also located at the top. A reverse blowing device is installed at the upper opening of each filter cartridge, which regularly blows compressed air into the filter cartridge to blow off the dust particles on the surface of the filter cartridge, thereby ensuring the permeability a...

AI Technical Summary

Problems solved by technology

[0003] The back blowing device in the above dust removal can use high pressure air flow for back blowing, the advantage is that the air flow is uniform, but the air consumption is large; it can also be blown by pulse air flow, although the air consumption is small, the air flow is weak and the dust removal is not thorough

Images