Efficient purification device for calcium-method wet desulfurization tower direct-discharge chimney wet smoke plume, and applications thereof

Abstract

The invention discloses an efficient purification device for calcium-method wet desulfurization tower direct-discharge chimney wet smoke plume. The device comprises a flue gas purification unit, waterretaining rings and flow guide plates, wherein the water retaining rings are coaxially arranged above the flue gas purification unit at intervals, the flow guide plates are coaxially arranged above the water retaining rings at intervals, the central axis of the smoke purification unit, the central axis of the water retaining rings and the central axis of the flow guide plates are kept consistentwith the central axis of a chimney on the top of an absorption tower, and the smoke purification unit, the water retaining rings and the flow guide plates can be all tightly connected with the inner wall of the chimney on the top of the absorption tower. The device can be used for effectively removing tiny liquid drops carried in saturated wet flue gas at the outlet of a wet desulphurization chimney, so that the formation of wet smoke plume at the outlet of the chimney is inhibited, secondary pollution to the environment is prevented, and the living quality of surrounding residents is improved; a heating and condensing device is not needed, so that the energy consumption is reduced, and the energy consumption and the investment cost of a unit are low; and scaling is not easy to generate, the device is simple to manufacture, and the investment cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of environmental protection equipment, in particular to a high-efficiency purification device and application of the wet smoke plume of the direct discharge chimney of a calcium method wet desulfurization tower. Background technique [0002] Among the mainstream desulfurization technologies at home and abroad, wet desulfurization technology occupies a dominant position. In wet desulfurization technology, calcium desulfurization technology is often used. The saturated wet flue gas formed after desulfurization of the original flue gas will carry some small droplets, and the saturated wet The flue gas passes through the plate type mist eliminator and the roof type mist eliminator to remove most of the small liquid droplets carried. Due to the low saturated specific humidity and temperature of the ambient air, after the saturated wet flue gas passing through the plate type demister and roof type demister is dire...

AI Technical Summary

Problems solved by technology

The scope of application of the direct heating method is relatively narrow, mainly because the temperature required for this method to eliminate the "wet plume" is closely related to the ambient temperature and humidity and the temperature of the saturated wet flue gas, although directly heating the saturated wet flue gas to a certain temperature Discharged into the atmosphere through the chimney can eliminate the generation of "wet plume", but the energy consumption of the unit will increase and the operating cost will be higher

Compared with the direct heating method to eliminate the "wet smoke plume", the first condensation and then heating method reduces energy consumption, but requires anti-corrosion and other treatments for the heating device, which not only increases investment costs, but also easily generates scaling and increases maintenance. cost

[0004] Through the search, no patent publications related to the patent application of the present invention have been found

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