Classified dust removal device and automatic dust removal system for iron and steel smelting

Abstract

The invention discloses a classifying and dedusting device for iron and steel smelting, which comprises a main cylinder, and the interior of the main cylinder is sequentially provided with an ash collecting chamber, an ash cleaning control chamber, an air storage chamber and an exhaust confluence from bottom to top. Chamber; the outside of the main body of the main cylinder is fixedly connected with the air inlet splitter cylinder, the lower dust removal cylinder, the middle dust removal cylinder and the upper dust removal cylinder in sequence from bottom to top. The lower dust removal cylinder, the middle dust removal cylinder and the upper dust removal cylinder are all ring structures. The dust removal cylinder includes an inner ring plate and an outer ring plate arranged coaxially. There are multiple dust removal chambers between the inner ring plate and the outer ring plate. Fan-shaped orifice plates are installed in the dust removal chambers. There are multiple installation holes, and filter bags are installed in the installation holes; the present invention can simultaneously and effectively process the dust generated by the smelting system and the dust emitted by the material pretreatment system, and the treatment process is carried out in stages, and particles of different particle sizes can be effectively intercepted ; It can significantly improve the degree of integration of equipment and reduce the footprint of equipment.

Description

technical field [0001] The invention relates to a dust removal system, in particular to a graded dust removal device for iron and steel smelting, and belongs to the technical field of dust removal systems. Background technique [0002] As an important industry in my country, the iron and steel industry will produce a large amount of dust, flue gas and other emissions during the smelting process, and the emissions can only be discharged into the atmosphere through dust removal treatment; the dust removal devices for iron and steel smelting in the prior art are generally bag filter, bag filter The structure of the container is generally composed of an ash hopper, an upper box, a middle box, a lower box, etc., and the upper, middle, and lower boxes are divided into chambers. When working, the dust-laden gas enters the ash hopper through the air inlet, the coarse dust particles fall directly into the bottom of the ash hopper, and the fine dust particles enter the middle and lower...

AI Technical Summary

Problems solved by technology

[0008] In the prior art, the filter bags in the dust removal chamber are inconvenient for maintenance or replacement. During maintenance or replacement, the cover plate on the top of the dust removal chamber needs to be disassembled. If the cover plate is not installed properly, it will cause air leakage in the dust removal chamber and affect the dust removal effect.

[0009] In summary, there are obviously inconveniences and defects in the actual use of the existing technology, so it is necessary to improve

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