Grading dust removal device for steel smelting and automatic dust removal system thereof

Abstract

The invention discloses a grading dust removal device for steel smelting. The grading dust removal device comprises a main cylinder, and a dust collection cavity, a dust removal control cavity, a gas storage cavity and an exhaust confluence cavity are sequentially arranged in a main body of the main cylinder from bottom to top; the outer portion of a main body of the main cylinder is sequentially and fixedly connected with an air inlet flow dividing cylinder, a lower dust removal cylinder, a middle dust removal cylinder and an upper dust removal cylinder from bottom to top, the lower dust removal cylinder, the middle dust removal cylinder and the upper dust removal cylinder are each of an annular structure, each dust removal cylinder comprises an inner annular plate and an outer annular plate which are coaxially arranged, and a plurality of dust removal cavities are formed between the inner annular plates and the outer annular plates; a fan-shaped pore plate is mounted in the dust removal chamber, a plurality of divergent mounting holes are formed in the fan-shaped pore plate, and filter bags are mounted in the mounting holes; smoke dust generated by a smelting system and dust emitted by a material pretreatment system can be synchronously and effectively treated, the treatment process is carried out in a graded mode, and particles with different particle sizes can be effectively intercepted; and the integration degree of the equipment can be obviously improved, and the occupied area of the equipment is reduced.

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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