Filter bag for flue gas treatment of coke furnace charging car

Abstract

The invention discloses a filter bag for flue gas treatment of a coke oven coal-charging vehicle, which includes an outer bag body, an inner bag body and a skeleton. There is an air outlet connected to the secondary air channel, and a cylinder is installed between the bottom of the inner bag and the bottom of the outer bag. The open end of the cylinder communicates with the inside of the inner bag, and openings There is an air hole communicating with the secondary air flow channel, the slider is slidably arranged in the barrel, and a spring is installed at the bottom of the slider. The stress generated by the second expansion of the outer bag is much greater than the stress generated by the first expansion, that is, the dust attached to the outer bag is completely ejected. Compared with the single-layer dust bag, the dust removal efficiency is greatly improved. , and the expansion of the outer bag is driven by the expansion of the inner bag, which reduces the direct erosion of the outer bag by the air flow, thereby reducing the loss of the outer bag.

Description

technical field [0001] The invention relates to the field of bag dust removal, in particular to a filter bag for treating flue gas of a coke oven coal charging vehicle. Background technique [0002] Coking is a multi-source pollution industry, and smoke and dust are the main pollutant fugitives in the coking production process. Modern chamber coke ovens are generally equipped with vehicle-mounted or ground station coal charging and coke discharge dust removal systems, of which the ground station dust removal system is widely used. The ground station type coke discharge dust removal system mainly uses hydraulic coupling or frequency conversion control fans to collect most of the smoke dust on the coke side through the collection cover set on the coke stop car and purifies it through the coke discharge dust collector. [0003] The existing dust bag is a drum single-layer structure, which is easy to process. It is a form commonly used in the existing market, but because of it...

AI Technical Summary

Problems solved by technology

It is a form commonly used in the existing market, but because of its large size, the equipment manufacturing cost increases, the operating cost is too high, and the filtering effect of the single-layer structure is average, and the service life is short

Moreover, the cloth bag is easy to fold due to the long-term impact of the gas during the collection process, which affects the filtration area of ​​the filter cloth bag, and then affects the filtering effect of the filter cloth bag.

Images