Movable integrated device for treating organic waste gas

Abstract

The invention provides a movable integrated device for treating organic waste gas, and belongs to the field of organic waste gas treatment. The device comprises an adsorption unit, a catalytic reaction unit and a PLC (programmable logic controller) system which are integrally designed on a movable walking support, wherein the adsorption unit adopts a continuously rotary runner type structure, the organic waste gas passes through a runner adsorbent bed, and is absorbed by activated carbon or molecular sieve and discharged by a high-altitude discharge pipe after the gas is up to the standard. Fresh air is electrically heated to form desorption air, the runner adsorbent bed is subjected to desorption and regeneration, the organic waste gas after desorption is subjected to heating and heat exchange, then enters a catalytic combustion bed for a reaction to generate carbon dioxide and water, generated flue gas at the medium temperature is used for preheating the desorbed organic waste gas by a heat exchanger, and energy consumption during operation is reduced. The device can be used for emergency treatment of sudden accidents of environmental pollution or treatment of pollution sources limited by space, and the device has movability and small device size, can be mounted without civil engineering foundation, and is convenient to move and high in treatment efficiency.

Description

technical field [0001] The invention relates to an organic waste gas treatment device, which belongs to the field of organic waste gas treatment, in particular to a movable integrated waste gas treatment device. Background technique [0002] In recent years, with the rapid development of industry, organic waste gas pollution caused by environmental accidents has occurred frequently. The existing treatment methods mainly include physical adsorption, burial, combustion, and ventilation. At present, the technologies commonly used in the treatment of industrial organic waste gas mainly include adsorption transfer method, catalytic oxidation method, adsorption concentration-catalytic oxidation method, and there are many deficiencies in the treatment of environmental emergencies. [0003] The adsorption transfer method is to use activated carbon, clay and other adsorbents with adsorption capacity to adsorb organic waste gas\solvent, and transfer the organic solvent from the ground...

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Problems solved by technology

At present, the technologies commonly used in industrial organic waste gas treatment mainly include adsorption transfer method, catalytic oxidation method, adsorption concentration-catalytic oxidation method, and there are many deficiencies in the treatment of environmental emergencies.

[0003] The adsorption transfer method is to use activated carbon, clay and other adsorbents with adsorption capacity to adsorb organic waste gas\solvent, and transfer the organic solvent from the ground or from the waste gas to the adsorbent. This treatment method is simple and easy, but the adsorbent It cannot be regenerated and reused, and must be replaced after reaching adsorption saturation, which not only produces industrial solid waste and increases operating costs, but also contains a large amount of organic matter in waste activated carbon, which may cause safety hazards such as combustion and pollutant release under certain conditions ; The catalytic combustion method is to burn the organic waste gas below the ignition temperature under the action of an oxidation catalyst to generate CO 2 and H 2 O, the temperature range is 200-500°C, but the catalytic combustion method requires additional fuel demand for the treatment of large air volume and low-concentration organic waste gas formed in the accident, which increases the treatment cost and has low treatment efficiency

[0004] Integrated adsorption concentration-catalytic oxidation method, that is, the combination of activated carbon adsorption bed and catalytic oxidation bed. The catalytic bed is subjected to catalytic oxidation treatment; through this process, the adsorbent can not only be automatically regenerated, which saves operating costs, but also the organic pollutants are oxidized into CO in situ after adsorption. 2 and H 2 O, there is no secondary transfer and generation of pollutants; however, the integrated activated carbon adsorption concentration-catalytic oxidation method has a large device and is usually fixed on a civil foundation or a steel structure platform, which limits its application in emergency treatment requirements.

[0005] CN102941000A discloses a multifunctional integrated treatment device for organic waste gas. This patent can continuously treat organic waste gas by combining the two technologies of adsorption treatment method and catalytic combustion method. However, the above-mentioned patent device is cumbersome and bulky. Waste gas treatment that is not conducive to emergency treatment of environmental accidents

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