Dry method dust-free dust discharging system

Abstract

The invention relates to a dry method dust-free dust discharging system. The dry method dust-free dust discharging system comprises a coarse dust bin, a dust discharging main pipe, a telescopic metalhose, a winch, an accident dust discharging pipe, a movable accident dust bin, a nitrogen main pipe and a constant pressure tank. A fluidizer is arranged in a lower conical hopper of the coarse dust bin. A dust discharging port of the coarse dust bin is connected with the telescopic metal hose through the dust discharging main pipe. A pulse valve is arranged at the top of the fixed end of the telescopic metal hose. The movable end of the telescopic metal hose is ascended and descended through the winch. The movable accident dust bin is connected with the coarse dust bin through the accident dust discharging pipe. The nitrogen main pipe is connected with the constant pressure tank. A nitrogen pipe at an outlet of the constant pressure tank is divided into two paths, a first nitrogen branchpipe is connected with the fluidizer, and a second nitrogen branch pipe is connected with the pulse valve. The problem that lots of steam is produced after high-temperature coarse dust humidifying issolved, the problem of secondary dust flying caused by the large dust discharging level difference is also solved, and the dry method dust-free dust discharging system is especially suitable for converter primary smoke dry method dedusting projects and is wide in application prospects.

Description

technical field [0001] The invention relates to the field of environmental protection equipment, in particular to a dry-process dust-free ash unloading system. Background technique [0002] With the continuous improvement of new environmental protection standards, most of the newly built and rebuilt converters adopt dry dust removal system. The high-temperature coarse ash collected by the evaporative cooler is sent to the coarse ash bin in the main workshop through the built-in double-chain conveyor, and is transported by car after humidification. [0003] The main problems of the existing converter dry dedusting coarse ash unloading system: first, the ash unloading port is far away from the ash truck, and the drop is large, which easily causes secondary dust; second, the high-temperature coarse ash generates a large amount of steam after humidification, Affect the working environment in the main workshop. Contents of the invention [0004] The technical problem to be so...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a dry dust-free ash unloading system, which not only solves the problem of generating a large amount of steam after humidification of high-temperature coarse ash, but also solves the problem of secondary dust caused by the large drop of ash unloading

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