Displacement type ash removal bag filter

Abstract

The invention discloses a combined type ash removal bag filter. One side wall of a dedusting box is provided with an air inlet, and the other side wall is provided with an air outlet. The dedusting box is internally provided with a plurality of independent box units, each independent box unit is internally provided with multiple rows of filter bags, the upper parts of the independent box units are equipped with corresponding flues, the flues are all provided with offline valves, a blowing system is disposed above each row of filter bags, the blowing system comprises a blow pipe and several blow ports disposed on the blow pipe side wall, one end of the blow pipe is provided with a pulse valve, and both ends of the blow pipe are flexibly connected to the independent box units. The ash removal bag filter also includes a linear actuator, the output end of which is connected to the blow pipe, and also includes a swing actuator, the power output end of the swing actuator is in connection with the linear actuator, and the lower part of the swing actuator is fixed on the side wall of the independent box units. The combined type ash removal bag filter provided by the invention can realize displacement and swing to remove ash.

Description

technical field [0001] The invention relates to the field of powder collecting devices, in particular to a displacement type dust cleaning bag filter. Background technique [0002] The soot gas is filtered through the bag filter, and the primary dust is formed on the surface of the filter bag. In the subsequent dust removal process, the primary dust becomes the main filter layer of the filter bag. With the corresponding increase of dust resistance, when the pressure difference on both sides of the filter bag increases to a certain level, the fine dust attached to the filter bag layer will be squeezed away, and the dust removal efficiency will drop significantly. Therefore, when the filter resistance reaches a certain value, the dust should be cleaned in time. [0003] The bag filter whose publication number is CN204275687U is used to filter dust. When cleaning is required, the offline valve on the bag filter is closed so that the air flow in the bag filter box does not circ...

AI Technical Summary

Problems solved by technology

Although the existing bag filter box is equipped with a plurality of pulse valves for blowing the filter bags, due to the high pressure of the gas blown out from the pulse valves, each pulse valve forms a fixed point to blow the filter bags. In this way, most of the dust can be cleaned off, but due to the distance between two adjacent pulse valves, there are still some parts inside the filter bag that cannot get the blowing force, resulting in unsatisfactory cleaning effect

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