Desulfurization and denitrification device based on adjusting type active particle exciters

Abstract

The invention discloses a desulfurization and denitrification device based on an adjusting type active particle exciters. The desulfurization and denitrification device comprises an absorbing tower, wherein the absorbing tower is internally and sequentially separated into an absorption liquid pond area, a fume oxidization and injection area, a spray area and a demisting area from bottom to top; the fume oxidization and injection area is formed by a plurality of the adjusting type active particle exciters which are horizontally arranged in a tangent circle way along the wall of the absorbing tower; each adjusting type active particle exciter comprises an outer tube, an inner tube, a grounding electrode, a high-voltage electrode, an adjuster and the like; and each adjuster is used for adjusting the axial motion of each inner tube. The desulfurization and denitrification device disclosed by the invention is high in contaminant removal efficiency and low in system energy consumption and can be used for efficiently generating the active particles in a low-temperature environment, enhancing the effective utilization rate of the active particles, sufficiently oxidizing the contaminants and simultaneously desulfurizing and denitrifying the low-temperature fume absorbed by the contaminants. According to the desulfurization and denitrification device, when the fume passes through the absorbing tower, NO and SO2 which are contained in the fume can be simultaneously oxidized and absorbed, so that the purposes of simplifying equipment, reducing occupied area and integrating high-efficiency desulfurization and denitrification of the low-temperature fume are achieved.

Description

technical field [0001] The invention relates to a flue gas desulfurization and denitrification device, in particular to a desulfurization and denitrification device based on an adjustable active particle exciter. Background technique [0002] With the rapid economic development and the sharp rise in total energy consumption, NO emissions from industrial flue gas X and SO 2 The problem of air pollution is becoming more and more serious. Air pollution not only harms the growth of animals and plants, destroys the ozone layer, but also causes acid rain, greenhouse effect and photochemical smog. Therefore, desulfurization and denitrification of flue gas is an effective means to control its pollution. [0003] At present, thermal power plants often adopt flue gas step-by-step desulfurization and denitrification technology. Generally, the denitrification device is arranged after the reheater, and the flue gas is diverted to the denitrification device. X catalytic reduction to N...

AI Technical Summary

Problems solved by technology

However, the content of other gases in the flue gas is high, the oxygen concentration is low, and it contains other particles, which makes the ionization object inaccurate and the active particles are easy to discharge, which leads to the low ionization efficiency of this method and the unstable production of active particles, so it cannot oxidize the smoke well. NO and SO in air 2

At the same time, since the active particles are directly passed into the flue, and there is no special flue gas oxidation zone designed, the strong acid aerosols such as sulfuric acid and nitric acid generated after the pollutants are oxidized by the active particles can easily interact with the metal flue. reaction, accelerating flue corrosion

In addition, if the active particles are directly sprayed into the entrance of the absorption tower, the life of the active particles in the high humidity environment in the absorption tower will be greatly shortened, the oxidation activity of the active particles will be lost, the ionization energy consumption will be increased, and the pollutant removal efficiency will be reduced.

Images