Stripping system used for treating industrial volatile organic pollutants

Abstract

The invention relates to a stripping system used for treating industrial volatile organic pollutants. The stripping system is characterized by comprising a catalytic air intake heater, a catalytic bed, a catalytic fan, a heat exchanger, an adsorption bed, a stripping gas circulation fan, a stripping gas circulation heater and an adsorption bed stripping heater. An industrial volatile organic pollutant waste gas inlet, a purified gas outlet, a stripping waste gas outlet, a stripping gas inlet, a stripping gas circulation outlet and a stripping gas circulation inlet are formed in the adsorption bed. The heat exchanger is provided with a catalytic tail gas inlet, a catalytic tail gas outlet, a catalytic gas inlet, a catalytic gas outlet, a stripping gas feeding inlet and a stripping gas feeding outlet. The stripping system effectively improves thermal efficiency of treatment, reduces heat loss and improves heat recovery utilization rate; in the burning process, the temperature in a catalytic burning bed of the stripping system is more even, burning efficiency and a purifying rate are improved, heat exchange is increased, heat energy is utilized more reasonably, and the requirements for energy conservation and emission reduction are met.

Description

technical field [0001] The invention belongs to the field of desorption systems, in particular to a desorption system for treating industrial volatile organic pollutants. Background technique [0002] At present, the main equipment in the desorption system used for the treatment of industrial volatile organic pollutants includes a catalytic bed. The catalytic bed is usually made of heat-resistant steel plates or industrial furnace masonry materials. The tuyere and the air outlet are located at the upper and lower ends of the catalytic combustion bed. Although the existing structure can realize catalytic combustion, there are the following problems: 1. The structure of the catalytic combustion bed furnace itself has a large heat loss, and the efficiency of heat recovery and utilization is low; 2. The temperature in the catalytic combustion bed furnace body structure is uneven, and the overall temperature is high in the center and low in the edge, which reduces the combustion ...

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Problems solved by technology

[0002] At present, the main equipment in the desorption system used for the treatment of industrial volatile organic pollutants includes a catalytic bed. The catalytic bed is usually made of heat-resistant steel plate or industrial furnace masonry material. The existing catalytic combustion bed structure is improved. The tuyere and the air outlet are located at the upper and lower ends of the catalytic combustion bed. Although the existing structure can realize catalytic combustion, there are the following problems: 1. The structure of the catalytic combustion bed furnace itself has a large heat loss, and the heat recovery efficiency is low; 2. The temperature in the structure of the catalytic combustion bed furnace body is uneven, and the overall temperature is high at the center and low at the edge, which reduces the combustion efficiency of industrial volatile organic pollutants and affects the purification rate of catalytic combustion. 3. The energy saving effect is poor and does not meet the requirements Energy saving and emission reduction requirements, in addition, the desorption gas concentration of the adsorption bed cannot be well controlled during the desorption process, which affects the catalytic combustion efficiency and heat energy utilization rate

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