Mixed-type plasma exhaust gas treatment device

Abstract

The invention discloses a mixed-type plasma exhaust gas treatment device. The mixed-type plasma exhaust gas treatment device comprises a washing tower, a deduster, a plasma purifying device, and a deep oxidation bed; the top of the washing tower is connected with a demister; the demister is connected with a wind inlet of the deduster through a centrifugal fan; a wind outlet of the deduster is connected with a wind inlet of the plasma purifying device through a centrifugal fan; a wind outlet of the plasma purifying device is connected with the deep oxidation bed through a centrifugal fan; the deep oxidation bed is connected with an exhausting pipe through an induced draught fan; a spray device is arranged in the washing tower; the spray device is connected with a circulating water pump; andthe bottom of the washing tower is connected with the circulating water pump. In using process of the mixed-type plasma exhaust gas treatment device, the mixed-type plasma exhaust gas treatment device is capable of eliminating exhaust gas dust as far as possible through washing, adsorption, and filtering before introduction of exhaust gas into the plasma purifying device, and small amounts of fragment ions, hydroxyl free radicals, active oxygen free radicals, and the like which are not reacted in the plasma purifying device are eliminated completely after passing through the deep oxidation bed, purifying efficiency is high, and processing effect is good.

Description

technical field [0001] The invention belongs to the field of waste gas purification, and in particular relates to a hybrid plasma waste gas treatment device. Background technique [0002] Low-temperature plasma is the fourth state of matter after solid state, liquid state, and gas state. When the applied voltage reaches the discharge voltage of the gas, the gas is broken down and a mixture including electrons, various ions, atoms, and free radicals is produced. , although the temperature of the electrons is high during the discharge process, the temperature of the heavy particles is very low, and the whole system presents a low-temperature state. Low-temperature plasma degrades pollutants by utilizing the action of these high-energy electrons, free radicals and other active particles and pollutants in the exhaust gas to decompose the pollutants and undergo various subsequent reactions to achieve the purpose of degrading pollutants, but the gas reacts in the plasma The tim...

AI Technical Summary

Problems solved by technology

Low-temperature plasma degrades pollutants by utilizing the action of these high-energy electrons, free radicals and other active particles and pollutants in the exhaust gas to decompose the pollutants and undergo various subsequent reactions to achieve the purpose of degrading pollutants, but the gas reacts in the plasma The time in the device is extremely short, and the current single plasma purification equipment is not effective in purifying the exhaust gas.

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