Cobweb type anti-blocking fluidization ash conveying method and system used for dust remover

Abstract

The invention provides a cobweb type anti-blocking fluidization ash conveying method and system used for a dust remover. The system comprises the dust remover and a fluidizer. An ash bucket is arranged at the lower end of the dust remover, an ash outlet guide pipe is arranged on the side wall of the ash bucket in a penetrating manner, and an outlet of the ash outlet guide pipe is connected with anash conveying gas supply pipe. The fluidizer is fixedly arranged at the lower end of the ash bucket and located below an inlet of the ash outlet guide pipe. An inlet at the lower end of the fluidizeris connected with a fluidization gas supply pipe, a fluidization disc is arranged at the upper end of the fluidizer, and the fluidizer communicates with the ash bucket through the fluidization disc.According to the method and system, by means of the manner of combining fluidization and ash conveying, concentrated phase pneumatic ash conveying can be achieved, continuous blocking of ash can be solved, ash conveying is reliable, and cost is low.

Description

technical field [0001] The invention relates to the technical field of blast furnace ash conveying engineering, in particular to a cobweb-type anti-clogging fluidized ash conveying method and system for dust collectors. Background technique [0002] The blast furnace gas bag dust removal system is a dust removal system parallel to the blast furnace system. It is used to process the blast furnace semi-clean gas drawn from the top of the furnace to meet the dust content requirements for subsequent processes. Blast furnace gas bag filter system includes two non-standard equipment, namely, Blast Furnace Gas Bag Filter Chamber (BFC for short, which is a pressure vessel) and Big Dust Bin (BDB for short, which is a non-pressure vessel), of which The blast furnace gas bag filter (BFC) is a pressure vessel with high manufacturing standards and strong versatility. However, the existing blast furnace gas bag filter (BFC) will be directly dismantled and sent to waste after the blast fur...

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Problems solved by technology

[0005] In the current blast furnace construction projects, the dust collector is directly discharged through the outlet, and most of them use high-pressure nitrogen to purge directly for ash transportation, but it produces a dilute phase ash transportation phenomenon, requiring a large amount of purge gas, and operating costs High, and in the case of clogging, ash transportation cannot be realized. In order to avoid clogging, a vibrator will be used to clear the clogging, but for continuous clogging (that is, there is continuous clogging in the middle part of the clogging, and the bulk density is large), the vibrator It will produce a phenomenon of getting more and more porcelain, which will cause more serious blockage

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