Device and method for efficiently removing fine particulate matters by temperature and humidity regulation and control

Abstract

The invention discloses a device and a method for efficiently removing fine particulate matters through temperature and humidity regulation and control. A box body structure with the same cross section structure size is adopted; the main body channels are arranged in series in a manner that flow channel center lines coincide; efficient removal of the particles with large and small particle sizes is achieved step by step in a regional mode through the forms of front-stage negative direct current pre-dedusting, primary flue gas temperature and humidity regulation and control, acoustoelectric coupling coagulation, secondary flue gas temperature and humidity regulation and control and rear-stage negative direct current dedusting in combination with gravity settling, filtering and trapping effects, condensation nucleation effects and acoustoelectric coupling effects for enhancing the collision coagulation effect of the fine particles. Local regulation and control of the flue gas temperatureand step-by-step humidification of the humidity are achieved through the series connection effect of the two-stage flue gas temperature and humidity regulation and control dust collection areas and the coupling effect of acoustic agglomeration and pulse electrocoagulation; meanwhile, the partition electrocoagulation effect of particulate matter with different particle sizes is achieved, and the trapping and removing effect of fine particulate matter is enhanced through the ash removal and dust collection effects of the movable grid plate and the movable electrode plate, and the removing efficiency of the fine particulate matter is high.

Description

technical field [0001] The invention relates to the technical field of flue gas dedusting, in particular to a device and method for efficiently removing fine particles under temperature and humidity control. Background technique [0002] my country is a country that uses coal as its main energy source. While coal combustion provides us with heat and power, it also brings serious particle pollution. Among the sources of fine particles, emissions from coal-fired boilers account for a large part, especially It is a small and medium-sized industrial boiler and industrial kiln widely used in various industries. Due to the lack of corresponding environmental protection control equipment, the pollution is particularly serious. Aerosol particulate matter, especially fine particulate matter PM 2.5 After being discharged into the air, it will seriously affect people's daily life and work, and even threaten people's lives. Due to the small size and light weight of fine particles, they...

AI Technical Summary

Problems solved by technology

The agglomeration methods currently being studied include: electrical agglomeration, acoustic agglomeration, phase change coagulation growth, and chemical agglomeration, etc. Among them, the ability of electrical agglomeration is the strongest, but the agglomeration effect of traditional DC corona agglomeration or a single form of electrical agglomeration is not good. Obviously, it is necessary to further improve the removal effect of fine particles

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