High-temperature industrial waste gas multi-stage dust removal system

Abstract

The invention discloses a high-temperature industrial waste gas multi-stage dust removal system which comprises a heat exchange box, a draught fan, an air guide pipe, a dust removal box, an ash storage box, a hydraulic cylinder, a baffle, a spiral conveying device and an exhaust device, the heat exchange box comprises a water inlet, an air inlet, a water outlet, an air outlet, a lower partition plate, an upper partition plate, flow guide plates, heat exchange pipes and turbulence fans; the water inlet is arranged at one side of the heat exchange box and below the lower partition plate; the water outlet is formed in the same side and located above the upper partition plate; the air inlet is formed in one side of the heat exchange box and located between the flow guide plates and the lower partition plate, the flow guide plates and the turbulent fans are distributed on the two sides in the heat exchange box in a staggered mode, and the heat exchange pipes are evenly distributed in the heat exchange box and penetrate through the upper partition plate, the lower partition plate and the flow guide plates; and the air outlet is formed in one side of the heat exchange box and communicateswith the draught fan, and the draught fan is fixedly installed on the heat exchange box and communicates with the dust removal box through the air guide pipe. Cyclone dust removal and cloth bag dustremoval are integrally designed, the occupied area is small, the dust removal efficiency is high, and flying dust can be prevented.

Description

technical field [0001] The invention belongs to the technical field of industrial waste gas treatment, in particular to a multi-stage dust removal system for high-temperature industrial waste gas. Background technique [0002] With the continuous development of society, environmental problems are becoming more and more serious, and more and more attention has been paid to the treatment of industrial waste gas. In the production process of iron and steel, metallurgy and other industries, dust gas will be generated and accompanied by high temperature. If it is not treated, it will be Cause irreversible impact on the environment and even human health. [0003] There are many types of existing dust removal equipment, but there are also the following problems: [0004] 1) Water bath spray dust removal can not handle water-soluble gas, it is easy to react with gas to change the composition of gas, causing secondary pollution, and it is easy to waste heat resources; 2) Cyclone dus...

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Problems solved by technology

[0004] 1) Water bath spray dust removal can not handle water-soluble gas, it is easy to react with gas to change the composition of gas, causing secondary pollution, and it is easy to waste heat resources; 2) Cyclone dust removal cannot remove small particles of dust, only Separation of large particles of dust; and bag dust removal has a short lifespan in a high temperature environment, requires dry gas, and has a large volume and high operating costs;

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