Ash discharging device of bag-type dust collector

Abstract

The invention discloses an ash discharging device of a bag-type dust collector. The ash discharging device comprises an ash discharging pipe, the ash discharging pipe is connected with one end of an ash conveying pipe arranged obliquely, the other end of the ash conveying pipe is connected with a water pool, at least one partition plate is arranged in the water pool, a water circulation device isarranged at the end, away from the ash conveying pipe, of the water pool, one end of the water circulation device is connected with the water pool, and the other end of the water circulation device isconnected with the ash conveying pipe. By utilizing the ash discharging device, pulverized coal collected by the bag-type dust collector can be brought into the water pool by flushing water, so thatthe problems that the ash discharging opening is blocked and the ash discharging opening leaks air due to the fact that the pulverized coal floats on the water surface are solved, and the problem of reentrainment of dust during ash discharging is also solved.

Description

technical field [0001] The invention relates to a bag filter, in particular to an ash unloading device for a bag filter. Background technique [0002] Raw coal in thermal power plants and coal-fired boiler rooms will produce a lot of dust during the production process such as crushing and transshipment. In order to meet environmental sanitation requirements, bag dust collectors are usually used to dedust the crushing and transfer points. [0003] The dust collected by the bag filter mainly includes the following types: 1. Pneumatic ash conveying system, the system is mainly composed of warehouse pumps, conveying pipelines, ash storage and compressed air pipelines. The system has a large investment and a complex system structure, which is suitable for dust collectors with a large amount of dust collection; 2. The system is transported to the ash store by mechanical transfer such as screw conveyors, belt conveyors and / or buried scraper conveyors, and the system structure is c...

AI Technical Summary

Problems solved by technology

The system has a large investment and a complex system structure, which is suitable for dust collectors with a large amount of dust collection; 2. The system is transported to the ash store by mechanical transfer such as screw conveyors, belt conveyors and / or buried scraper conveyors, and the system structure is complex , and the investment is relatively large; 3. Using manual trolleys to unload ash regularly, the labor intensity of workers reaches

The first two methods will cause a lot of secondary dust when the ash is unloaded in the ash store, and further dust removal is required

The third method will also produce a large amount of secondary dust during the ash unloading process, which will seriously affect environmental sanitation

[0005] CN205392019U discloses a bag dust collector ash unloading device suitable for ore crushing systems. The star-shaped ash unloading valve of the dust hopper of the dust collector is removed, and the lower ash pipe is directly passed into a container filled with liquid, and the ash sinks into the water. A device that uses water to take ash away from the overflow port. Although this device solves the problem of unsmooth ash discharge from the dust collector in the ore crushing system, it is not suitable for the ash discharge problem of Zhundong Coal and Shaer Lake Coal Dust Collectors. The main reason is that : Zhundong coal and Shaerhu coal are extremely fine, with a bulk density of only 394.4kg / m 3 , the pulverized coal will float on the water surface, further blocking the ash discharge port, making it more difficult to unload the pulverized coal in the ash hopper

Images