Metal filter bag sealing connection device and bag type dust collector

Abstract

The invention provides a metal filter bag sealing connection device and a bag type dust collector. The metal filter bag sealing and connecting device comprises: a tubesheet, a metal filter bag; a sealing connector; a first bolt which penetrates through the head cover of the metal filter bag and is in threaded connection with the sealing connector; a first sealing element which is arranged between the head cover and the sealing connector; a second sealing element which is arranged between the sealing connector and the tubesheet; a flange plate which is arranged below the tubesheet; and a second bolt which is connected with the flange plate and the sealing connector. The invention solves the problem of sealing when the metal filter bag is mounted on the tubesheet of a bag type dust collector, and avoids the problems of flue gas leakage and excessive flue gas emission caused by non-sealing mounting; the invention also solves the problem that the mounting perpendicularity of the metal filter bag is influenced due to tubesheet deformation caused by welding a stud on the tubesheet conventionally; and in addition, the metal filter bag is positioned by adopting a bag opening and the flange plate, so that the coaxiality of the filter bag and a tubesheet hole is ensured, and meanwhile, the problems of scratching and damage to a surface filter structure of the filter bag when the metal filter bag is mounted are avoided.

Description

technical field [0001] The invention relates to the technical field of bag-type dust collectors, in particular to a metal filter bag sealing connection device and a bag-type dust collector. Background technique [0002] As an efficient dust removal technology, bag filter technology is widely used in the field of industrial flue gas treatment, and achieves ultra-clean emissions. However, because the traditional fabric fiber filter bag can only operate stably in the temperature range below 260°C, when the temperature is higher than 260°C, it will burn the bag, which makes it unable to meet the filtration requirements of some special high-temperature environments. [0003] The metal filter bag is a high-temperature filter bag made of metal fiber and metal powder sintering. Due to its oxidation resistance, cleanability, and stable operation in high temperature environments above 300°C, the metal filter bag can be applied to high-temperature flue gas dust removal, dust removal +...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a metal filter bag sealing connection device to solve the problem that the existing metal filter bag is fixed by the studs welded on the flower plate, which causes the deformation of the flower plate, affects the flatness of the flower plate, and then affects the metal filter. The verticality of the bag will affect the cleaning effect, and even the problems of poor sealing, air leakage, and excessive smoke; the purpose of the present invention is to provide a bag filter to solve the problem of metal dust in the existing bag filter. The filter bag is fixed by the studs welded on the flower plate, which will cause the deformation of the flower plate, affect the flatness of the flower plate, and then affect the verticality of the metal filter bag, affect the cleaning effect, and even cause poor sealing, air leakage, and smoke. The problem of excessive gas

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