Organic waste gas treatment equipment

Abstract

The invention relates to organic waste gas treatment equipment, which comprises a plurality of adsorption-desorption towers, a vacuum pump, a catalytic combustion furnace and an exhaust pipe. The bottoms and tops of the adsorption-desorption towers are respectively equipped with exhaust gas inlets and exhaust gas outlets, and the exhaust gas inlets and exhaust gas outlets of the plurality of adsorption-desorption towers are communicated side by side through a pipeline, and the tops of the adsorption-desorption towers are also equipped with a desorption port respectively, the desorption ports are connected to the air inlet of the catalytic combustion furnace by way of the vacuum pump through a pipeline, the side wall upper parts and side wall lower parts of the adsorption-desorption towersare respectively equipped with heating medium outlets and heating medium inlets, the air outlet of the catalytic combustion furnace is connected to the exhaust pipe and the heating medium inlets of the adsorption-desorption towers respectively, and the heating medium outlets of the adsorption-desorption towers are communicated with the air inlet of the catalytic combustion furnace. The equipment provided by the invention employs a vacuum assistant technology to lower the desorption temperature, can regulate the desorption temperature to 20DEG C-100DEG C, enhances desorption safety, improves desorption efficiency, and at the same time reduces the operation cost.

Description

technical field [0001] The invention relates to the technical field of industrial production waste gas treatment, in particular to an organic waste gas treatment equipment. Background technique [0002] With the continuous development of our country's economy and the deep adjustment of industrial structure, cleaner production has become a development concept deeply rooted in the hearts of the people. We have seen that in recent years, my country has continuously increased environmental improvement, especially the improvement and investment in industrial waste gas, and has achieved remarkable results. At present, organic solvents are used in many industries, and certain volatile organic compounds (VOCs) waste gas will be generated. For example, various enterprises such as furniture manufacturing, metal processing, automobile production and maintenance, biochemical industry, etc. have many optional processes and supporting equipment for waste gas treatment. However, due to co...

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Problems solved by technology

[0004] However, there are still some problems in the current mainstream desorption technology, which limit the application of in-situ desorption, such as:

[0005] 1. The hot air desorption method, due to the consideration of safety issues, the desorption temperature is generally relatively low (usually less than 100°C) in application, and the desorption time is longer and the desorption time is longer when the organic matter with a higher boiling point is desorbed. Low efficiency, resulting in low sorbent cycle life

[0006] 2. Steam desorption method, the adsorbent needs to be dried after desorption, the desorption cycle is long, the equipment is complicated, and the process is cumbersome. The desorption waste gas can only be recovered by condensation, and there will be waste water and hazardous waste.

[0007] 3. Although the hot nitrogen desorption method is relatively safe and can increase the desorption temperature, the investment and operation costs are huge, and ordinary enterprises cannot afford the high investment and operation costs.

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