Cluster-type modular filter bag assembly capable of meeting ultra-low emission requirements

Abstract

The invention relates to a cluster-type modular filter bag assembly capable of meeting ultra-low emission requirements. The filter bag assembly comprises a plurality of cluster-type modular filter bagassemblies and filter bag assembly fixing apparatuses, wherein each cluster-type modular filter bag assembly comprises a porous plate, through holes are opened on the porous plate according to N1 x N2, a filter bag is installed in each through hole, hanging ears are installed on the porous plate, the porous plate is fixed to a second frame plate, each filter bag assembly fixing apparatus comprises short pipes, the short pipes are installed in each through hole of the porous plate, each short pipe is clamped with the clamping inclined surface of a clamping wedge block by a clamping groove, aninner side sealing groove of each short pipe and an outer side sealing groove of each filter bag head are interlocked, a bag cage is inserted into each filter bag, a skeleton top cover is clamped on the short pipes, a positioning pin shaft is installed on each skeleton bottom cover, a sealing pin sleeve is installed at the bottom of each filter bag, one end of each positioning pin shaft is inserted in each sealing pin sleeve, the other end of each positioning pin shaft is inserted in each positioning pin sleeve of a first frame plate, and the first frame plate and the porous plate are connected together by connecting rods. The filter bag assembly can effectively and steadily meet the ultra-low emission requirements.

Description

technical field [0001] The invention relates to the technical field of environmental protection equipment, in particular to a cluster-type modular filter bag assembly that can meet ultra-low emission requirements. Background technique [0002] With the rapid development of the economy and the improvement of people's living standards, the country's air quality control requirements are becoming more and more stringent, and higher requirements are placed on the performance and reliability of dust removal equipment. Due to the high dust removal efficiency of the pulse jet bag filter, it is widely used. The pulse jet bag filter is mainly composed of filter bag, bag cage, flower plate, bag room, clean air room, air inlet and outlet, ash cleaning system and ash conveying system. [0003] Among them, the flower plate can also be called a multi-plate hole. The function of the flower plate is to hang the filter bag, and separate the bag room with dusty gas from the clean air room th...

AI Technical Summary

Problems solved by technology

[0005] 1. The porous flower plate is seriously deformed, resulting in frictional damage between the filter bag of the dust collector and the bottom

[0006] 2. The bag mouth of the filter bag and the flower plate are fixed at the sealing position. Due to the deformation of the bag mouth of the filter bag or the swing of the filter bag, the sealing gap between the bag mouth of the filter bag and the flower plate increases, resulting in poor sealing, and the discharge of the dust collector exceeds the standard, which cannot meet the national regulations. ultra-low emission requirements

[0007] 3. Due to the working conditions and long service time of the dust collector, the flower plate and the upper cover of the bag cage frame are corroded. In order to replace the filter bag, it is often necessary to use tools to cut or pry the filter bag from the dust collector flower plate. out

This may cause the problem of excessive deformation of the flower plate

In order to prevent the deformation of the flower plate due to hot welding, complex reinforcement ribs need to be added to the flower plate, and special welding auxiliary fixtures are required for the hot full welding of the flower plate and the short tube, resulting in a substantial increase in manufacturing costs

[0009] 5. When the long filter bag is cleaned and filtered, it is prone to skew, swing, and mutual collision, resulting in premature damage to the lower part of the filter bag and excessive discharge; in addition, the filter bags swing, skew, and even stacked together. Occurrence will reduce the effective filter area of ​​the dust collector and reduce the filtration efficiency of the dust collector

[0010] Most of the replacement filter bags of the traditional pulse-jet bag filter are manually installed and replaced one by one on the top of the high dust collector on site, which is labor-intensive, low-efficiency, unsafe and easy. Cause secondary pollution of the surrounding environment of the dust collector and other problems

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