A flue gas scrubber with zoom-shaped orifice

Abstract

The invention relates to a smoke washing device with a scaling-shaped hole plate. The smoke washing device comprises a tower body and a circulation liquid storage tank, wherein the circulation liquid storage tank is arranged below the tower body; the scaling-shaped hole plate, a spraying layer and a demister are sequentially arranged in the tower body from bottom to top; a smoke inlet is formed in the lower part of the tower body; an absorption tower outlet is formed in the top of the tower body; a seriflux circulation pump, a flow control valve and a flowmeter are sequentially arranged on a pipeline connected between the circulation liquid storage tank and the tower body; an oxidizing seriflux film is sprayed downwards by the spraying layer; upstream smoke and spraying liquid descending along the wall face are subjected to intensive mixing and heat and mass transfer by the scaling-shaped hole plate. The seriflux film is torn in the smoke-liquid collision process, smoke-liquid mixture rushes out of the inner hole of a gradually expanded hole plate slantly to go into the space of the spraying layer and the scaling-shaped hole plate, and therefore, the seriflux film forms a secondary atomization state and smoke-liquid collision and mixing are further strengthened.

Description

technical field [0001] The invention relates to the technical field of flue gas pollutant purification, washing, desulfurization, denitration and dust removal, and in particular to a flue gas washing device with a zoom-shaped orifice plate. Background technique [0002] Due to the extensive use of coal in our country, a large amount of pollutants such as sulfur dioxide, nitrogen oxides, and dust are discharged. These pollutants can react with each other or other pollutants in the atmosphere, resulting in serious air pollution and endangering human existence. The environment, which is also the main source of atmospheric haze phenomenon, hinders the sustainable development of the country's economy. The state's latest flue gas emission standards for thermal power plants and industrial boilers put forward stricter requirements on the emission concentration of dust, sulfur dioxide and nitrogen oxides and other pollutant gases. [0003] At present, desulfurization tower, SCR and ...

AI Technical Summary

Problems solved by technology

However, the existing perforated plates all use a large number of columnar cavities distributed on the plate surface, which can play the role of flow equalization, but the gas disturbance is not strong enough, and the reaction with the slurry is not violent enough, and the absorption effect of the slurry on the pollution components cannot be fully exerted.

And the current flue gas scrubber only has a single removal effect, and cannot desulfurize, denitrify and remove dust at the same time

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