Small organic waste gas treatment method and device

Abstract

The invention discloses a small organic waste gas treatment method. The treatment method comprises the steps of collecting organic waste gas with a direct connection method, and firstly enabling the waste gas to enter a heat exchanger, and then enter a combustion chamber through a pipeline after heat exchange and warming; considering that the waste gas may be from oxygen-free environment, and arranging an air makeup port on the pipeline; meanwhile considering that the gas temperature is higher, performing insulation treatment to the pipeline; uniformly heating the waste gas through a pluralityof electric heating wires at a heating area of the combustion chamber in an auxiliary manner; ensuring the dwell time through rational setting of the size of the combustion chamber, and ensuring thegas turbulivity through arrangement of a spoiler plate in the combustion chamber; and rationally setting the power of an electric heating pipe in the step (3) according to the amount of the waste gas.The degradation rate of organic matters after incineration treatment reaches 99.9% and above, and 50% and above of heat energy of high temperature flue gas is recycled through the heat exchanger in the step (1); and the temperature of the flue gas is reduced to 400 DEGC and blow.

Description

technical field [0001] The invention relates to the technical field of environmental protection facilities, in particular to a small-scale organic waste gas treatment method and device. Background technique [0002] Industrial kilns produce organic waste gas during the sintering process of workpieces. Incineration is the most thorough method to deal with organic waste gas. The waste gas is mainly composed of various hydrocarbons, aldehydes, ketones, and carboxylic acids. Staying for 0.3-0.5s can be completely oxidized to CO2 and H2O. [0003] Due to the small amount of exhaust gas and the need to ensure the stability of the gas atmosphere and temperature field in the kiln, the existing treatment methods are mainly collected in a non-directly connected suction hood, and directly discharged after simple treatment with photocatalysis and activated carbon. The treatment effect is poor and there is still irritation. Sexual smell. [0004] The volume of this kind of exhaust gas ...

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Problems solved by technology

[0003] Due to the small amount of exhaust gas and the need to ensure the stability of the gas atmosphere and temperature field in the kiln, the existing treatment methods are mainly collected in a non-directly connected suction hood, and directly discharged after simple treatment with photocatalysis and activated carbon. The treatment effect is poor and there is still irritation. sex smell

[0004] The volume of this kind of exhaust gas is small, and the direct connection collection has a greater impact on the front-end sintering, while the non-direct connection will expand the exhaust gas volume and increase power consumption

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