Zeolite runner enrichment process based on cascaded cooling zone

Abstract

The invention discloses a step cooling zone-based zeolite rotary wheel densification technology. The technology comprises the following steps: raw exhaust gas goes through a filter device and is filtered, and the exhaust gas is introduced to a zeolite rotary wheel concentration system; most of the filtered raw exhaust goes through the adsorption zone of a rotary wheel to form a purified gas, a small part of the filtered raw exhaust goes through the cooling zone of the rotary wheel and is cooled by the rotary wheel, the cooled gas goes through a heater, is heated to a desorption temperature and enters a desorption zone, one part of the desorbed exhaust gas discharged from the desorption zone goes through an organic exhaust gas treatment device and is treated, the remaining desorbed exhaust gas goes through the cooling zone, is introduced to the desorption zone, and is concentrated to improve the concentration of the exhaust gas, and organic exhaust gas treatment is carried out. The technology has the characteristics of energy saving and low treatment cost.

Description

technical field [0001] The invention relates to the field of waste gas treatment technology, in particular to a zeolite runner enrichment technology based on cascaded cooling zones. Background technique [0002] At present, in order to ensure the efficiency of waste gas treatment, the zeolite concentration runner generally has a concentration factor of 10 to 20 times, while the waste gas generated by the original painting line is generally around 120mg / m³, and the concentration after concentration is generally not more than 2400mg / m³. It is still low and the air volume is relatively large, resulting in high installation costs and high treatment costs for subsequent organic waste gas treatment devices. Contents of the invention [0003] The object of the present invention is to provide a zeolite runner enrichment process based on cascaded cooling zones, so as to solve the problems raised in the above-mentioned background technology. [0004] In order to achieve the above o...

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Problems solved by technology

[0002] At present, in order to ensure the efficiency of waste gas treatment, the zeolite concentration runner generally has a concentration factor of 10 to 20 times, while the waste gas generated by the original painting line is generally around 120mg / m³, and the concentration after concentration is generally not more than 2400mg / m³. It is still low and the air volume is relatively large, resulting in high installation costs and high treatment costs for subsequent organic waste gas treatment devices

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