VOCs waste gas treatment system

Abstract

The invention discloses a VOCs waste gas treatment system which comprises a water curtain spray tower, an atomization spray tower, a gas-liquid separator, a plasma generation device and an infrared heating device which are sequentially connected and communicated. The highest removal rate of the VOCs waste gas can reach 90% or above, the problem that an existing waste gas treatment technology cannot meet the continuously-improved emission standard requirement is solved, and emission pollution of the VOCs waste gas to the environment is eliminated; the whole treatment process is simple and easyto operate, high in treatment efficiency, less in required equipment and low in equipment energy consumption, the requirements of modern enterprises for energy conservation, emission reduction and production benefit improvement are well met, and the method has great significance in saving resources and reducing cost.

Description

[0001] The present invention is a divisional application of a Chinese invention patent application with an application date of June 21, 2017, an application number of 2017104779475, and a title of "a VOCs waste gas treatment method". technical field [0002] The invention belongs to the technical field of environmental protection, and in particular relates to a VOCs waste gas treatment system. Background technique [0003] In recent years, serious air pollution incidents have occurred in many places across the country, which has made people increasingly concerned about air quality. At the same time, governments at all levels and environmental protection departments have issued a number of special policies for this phenomenon, which has enabled the exhaust gas treatment industry to flourish. Among them, the VOCs (volatile organic compounds) waste gas treatment industry developed slowly due to the early adoption of activated carbon adsorption methods with low technical content ...

AI Technical Summary

Problems solved by technology

However, traditional methods have problems such as low removal rate of refractory exhaust gas (such as spraying, low-temperature plasma, activated carbon adsorption), high operating costs (such as activated carbon adsorption, concentrated combustion, photocatalytic oxidation) and other problems.

For example, activated carbon adsorption, on the one hand, due to high operating costs, many manufacturers’ activated carbon adsorption equipment is out of service for a long time, and is only used during environmental protection inspections; For example, the traditional low-temperature plasma treatment technology uses power frequency high-voltage power supply or DC high-voltage power supply to remove VOCs through corona discharge and other forms. However, the particles in the plasma produced by it cannot break some chemical bonds with large bond energy, making it harmful to The removal rate of some VOCs is low, and even for large molecules that are broken into small molecules, the concentration of VOCs after benzene organic matter is treated is 1-2 times higher than before treatment

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