A device for treating waste gas based on dielectric barrier discharge plasma

Abstract

The invention discloses an apparatus for treating waste gas based on dielectric-barrier discharge plasma, comprising a waste treatment line with two ends opened, one end for gas incoming and the other end for gas outgoing, a plurality of barrier dielectric pipes are arranged evenly from top to bottom in the waste treatment line in a direction perpendicular to the waste treatment line, a center of adjacent four barrier dielectric pipes is provided with a high-voltage electrode parallel to the barrier dielectric pipes, and a soft electrode is disposed in each barrier dielectric pipe; the apparatus also comprises a high-voltage power supply, one end of the high-voltage power supply is connected with every high-voltage electrode, and the other end is connected with every soft electrodes and is grounded. Compared with conventional dielectric-barrier structures for waste gas treatment, the apparatus enables more uniform discharging and enables full reaction for entering gas, improving treatment efficiency; a discharge gap is enlarged, system backpressure is decreased, and energy consumption is effectively reduced; by using a line structure, gas stays long in the pipes; through a discharge zone, effective contact area is increased, thereby improving treatment efficiency.

Description

Technical field: [0001] The invention belongs to the technical field of waste gas treatment devices, and in particular relates to a device for treating waste gas based on dielectric barrier discharge plasma. Background technique: [0002] Low-temperature plasma technology has been widely used in recent years, and has potential application value in environmental protection, especially in waste gas treatment. With the continuous improvement of my country's industrialization level, a number of high-tech chemical industries have developed rapidly, and the industrial pollution caused by them has become more and more serious. The three wastes (waste liquid, exhaust gas, solid waste) discharged by many factories contain a large amount of harmful chemical substances, which are difficult to treat thoroughly at one time. Among them, industrial waste gas is defined as toxic or harmful gas produced in industrial production, mainly including volatile organic compounds (VOC s ), sulfide...

AI Technical Summary

Problems solved by technology

The invention achieves the purpose of treatment by reacting the plasma product with the exhaust gas, but the life of the plasma product is usually very short, so the expected effect is relatively low

In summary, the existing reports have advantages and room for optimization and improvement, and need to be put into actual tests under field conditions

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