Nitrogen desorption device

Abstract

The invention relates to a nitrogen desorption device, comprising an adsorber, a condenser, a solvent drum, a buffer tube, a heating device, a desorption fan, a nitrogen heater and a nitrogen pipeline, wherein a nitrogen inlet is arranged on the buffer tube; the buffer tube is orderly connected with the desorption fan, the nitrogen heater, the nitrogen pipeline and the adsorber; the nitrogen heater is provided with a pipeline and connected to the heating device; conduction oil is filled inside the heating device; the adsorber is orderly connected with the condenser and the solvent drum. According to the nitrogen desorption device, traditional steam desorption and hot air discharge desorption of catalytic purification are changed into nitrogen desorption; the property of nonflammable gas of nitrogen is utilized to overcome the defects that secondary pollution of wastewater is generated in steam desorption and that a catalytic purification device easily ignites active carbon are overcome; the nitrogen is heated to 160-180 DEG C in the desorption process and conveyed to the active carbon adsorber to carry out desorption and regeneration on active carbon through the desorption fan, and the process is safe and reliable; a desorbed solvent is recycled through the condenser and the solvent drum. Thus, the nitrogen desorption device is environment-friendly.

Description

technical field [0001] The invention relates to a waste gas desorption treatment device, in particular to a nitrogen desorption device. Background technique [0002] The treatment device in the prior art is composed of an adsorption system and a desorption system. During the adsorption process, the organic waste gas is collected and purified to the standard and then discharged into the atmosphere by the induced draft fan to complete the adsorption and purification process. When the activated carbon is saturated in the adsorption process, steam or use The hot air discharged from the catalytic purification device is desorbed and regenerated, so that the adsorption system can be recycled. The activated carbon waste gas treatment device has been used in many industries. The carbon is easily broken; desorption by the hot air discharged from the catalytic purification device is easy to generate red hot spots, which can easily make the activated carbon ignite. Contents of the inv...

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Problems solved by technology

[0005] The present invention changes the original steam desorption and catalytic purification device exhaust hot air desorption into nitrogen desorption, utilizes the properties of nitrogen as a non-combustible gas, overcomes the secondary pollution of waste water caused by steam desorption and the catalytic purification device is easy to make activated carbon easy to catch fire In the desorption process, the nitrogen is heated to 160-180°C, and then sent to the activated carbon adsorber by the desorption fan to desorb and regenerate the activated carbon, which is safe and reliable. After desorption, the solvent is recovered by the condenser and the solvent tank ,Green

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