Filter Bag Sealing Device for Ultra-Low Emissions

Abstract

The filter bag mouth sealing device for ultra-low emission includes a flower plate. A transparent flower plate hole is opened on the top surface of the flower plate. The flower plate hole passes through the main body of the filter bag. There is a sealing structure between the main body of the filter bag and the flower plate hole. The sealing structure is fixedly connected with the inner wall of the flower plate hole. A bag cage is arranged in the main body of the filter bag. The upper end of the bag cage is equipped with a bag mouth sealing device. The bag mouth sealing device consists of several first arc-shaped plates, several second arc-shaped plates, Composed of several first springs, a chute is provided on the inner side of the first arc-shaped plate, and the two sides of the chute communicate with the outside world. A second arc-shaped plate is arranged between each adjacent two first arc-shaped plates. The two sides of the two arc-shaped plates are located in the corresponding chute and can move along the chute, and the inner side of the second arc-shaped plate is flush with the inner side of the first arc-shaped plate. The invention has good sealing performance, no air leakage dead angle, convenient installation, can eliminate the phenomenon of flower hole dust leakage, solves the problem of air leakage due to the bag mouth of the main body of the filter bag, can improve the dust removal efficiency, meets the emission requirements, and has the significance of popularization and use.

Description

technical field [0001] The invention belongs to the field of coal-fired flue gas purification, in particular to a bag opening sealing device for ultra-low emission filter bags. Background technique [0002] At present, the rotary jet bag filter is one of the main dust removal technologies. The filter bag and flower plate opening structure used in this technology are both approximately oval. There is a stainless steel ring in the bag head of the filter bag, and the steel ring is used for installation. Clamp on the installation hole of the flower plate, seal the connection between the filter bag and the flower plate hole, and then use the bag cage to further fix the bag head. Since the approximately elliptical structure of the flower plate hole is a rectangle in the middle and semicircular on both sides, the bag mouth will not be tightly sealed during the actual installation process, resulting in a small amount of unfiltered smoke from the bag head of the filter bag and the in...

AI Technical Summary

Problems solved by technology

Since the approximate elliptical structure of the flower plate hole is a rectangle in the middle and semicircular structures on both sides, the bag mouth will not be tightly sealed during the actual installation process, resulting in a small amount of unfiltered smoke from the bag head of the filter bag and the installation of the flower plate. The gap of the hole enters the clean air chamber, resulting in an increase in the emission concentration of the dust collector

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