Saturated flue gas cyclone demisting tower

Abstract

The invention relates to a saturated flue gas cyclone demisting tower which comprises a flue gas inlet pipe arranged at the top, and an inlet channel is axially arranged on the flue gas inlet pipe in a penetrating manner; the bottom of the flue gas inlet pipe is communicated with a demisting device, the demisting device is used for providing a flue gas rotational flow channel for enabling saturated flue gas to generate downward rotational flow, and the overflowing section of the flue gas rotational flow channel is gradually shrunk from top to bottom; the bottom of the demisting device is communicated with a barrel which is vertically arranged and is sealed at the bottom end, and a flue gas outlet pipe structure is arranged at the lower part of an inner cavity of the barrel and is used for discharging demisted flue gas out of the barrel from bottom to top; an overflow water outlet is formed in the side wall of the barrel; and a dust collection and pollution discharge structure is arranged below the overflow water outlet in the inner cavity of the barrel. According to the demisting tower, the mode that flue gas enters from the upper side and exits from the lower side is adopted, the demisting device is used for accelerating the flue gas and providing strong centrifugal force, dust-containing fog drops are separated from the flue gas and collected, and fog drops in the flue gas are effectively removed.

Description

technical field [0001] The invention relates to the technical field of converter flue gas dedusting, in particular to a saturated flue gas swirl defogging tower. Background technique [0002] In order to meet the increasingly stringent emission standards, the dust content in the flue gas emitted by the converter should not exceed 10mg / Nm 3 , the dust content in the flue gas after fine dust removal in the traditional converter primary dust removal system is 20mg / Nm 3 Left and right, after water cooling, the flue gas reaches a saturated state, and the remaining particles in the flue gas are mainly fine dust, so it is necessary to remove the mist containing dust through the demisting tower, so as to achieve the purpose of ultra-clean emission. [0003] Prior Art 1: A composite inertia swirl type demister (application publication number is CN110448961A), including a cylinder body, a central air inlet pipe, an air outlet pipe, and a demisting structure. The implementation proce...

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a saturated flue gas swirl defogging tower to overcome the problem of unsatisfactory flue gas defogging effect existing in the prior art. The method uses the demisting device to accelerate the flue gas and provide a strong centrifugal force to change the direction of the flue gas, separate and collect the dusty mist droplets from the flue gas, and effectively remove the mist droplets in the flue gas

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