Mechanism for preventing rubbing filtering packet of pulse bag-type dust remover

Abstract

The invention provides a filter bag antifriction mechanism for a pulse bag-type duster, which comprises an upper tube sheet, a lower tube sheet, filter bags and a cage, wherein the upper tube sheet and the lower tube sheet are arranged up and down and connected into a frame through a plurality of connecting rods; the upper tube sheet and the lower tube sheet are provided with a plurality of upper tube sheet holes and a plurality of lower tube sheet holes correspondingly; the filter bags are sleeved outside the cage, and bag mouths of the filter bags are clamped into the lower tube sheet holes through elastic snap rings; sleeves are arranged on nut caps on the upper end of the cage and arranged between the upper tube sheet holes and the lower tube sheet holes; flanges are arranged on the top of the sleeves, and edges of the flanges are pressed on orifices of the upper tube sheet holes; a blowpipe which is connected with a draught fan is arranged between the upper tube sheet and the lower tube sheet; and the lower tube sheet is provided with a plurality of uniformly distributed blowing holes. The filter bag antifriction mechanism for the pulse bag-type duster has strong structural performance, reduces the manufacturing cost, avoids mutual friction between the filter bags, prolongs the service life of the filter bags, accelerates dust settlement, improves the dust removal efficiency and the dust removal effect, has obvious energy-saving effect, and is particularly suitable for processing dust with thin particles and strong viscosity.

Description

technical field [0001] The invention relates to flue gas purification technology, in particular to a filter bag anti-friction mechanism of a pulse bag type dust collector. Background technique [0002] The existing large-scale spray pulse bag filter operates under negative pressure and adopts the external filter method, that is, the lower part of the filter bag is closed and the upper part is open. In order to prevent the filter bag from shrinking during the working process, a cage is installed inside the filter bag. Hang on the flower plate through the cap; the bag opening of the filter bag is embedded in the hole of the flower plate with an elastic snap ring. In order to prevent the load-bearing deformation of the flower board, several reinforcement ribs are usually welded on the lower surface of the flower board to enhance the strength of the flower board. However, the welding workload is very large, and welding deformation is easy to occur. The working state of the puls...

AI Technical Summary

Problems solved by technology

During the filtering and dust cleaning process of the bag filter, due to the irregular flow of the air flow, the cage and the filter bag shake violently, especially the lower part, which causes mutual friction between the filter bags and reduces the service life; Especially when the dust collector is filtering, due to the negative pressure of the filter bag, it is in a deflated state, coupled with the effect of the updraft, the cage is often lifted, which increases the folding range of the filter bag and reduces the use of Life span affects dust removal effect

At the same time, the continuous shaking of the filter bag and the cage frame also makes it difficult for the dust to settle, prolonging the settling time of the dust, especially for the dust with fine particles and strong viscosity, it is easy to cause secondary adsorption and increase the load of the dust collector , affecting the normal operation of the bag filter

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