Fully automated special purification system for industrial volatile organic pollutants in PM2.5

Abstract

The invention relates to a fully automated special purification system for industrial volatile organic pollutants in PM2.5, and the system comprises a catalytic inlet gas heater, a catalytic bed, a catalytic fan, a heat exchanger, an adsorption bed, an adsorption fan, a flame arrester, a filter, a desorbed gas circulating fan, a desorbed gas circulating heater, an adsorption bed desorbing heater and an electric cabinet, wherein the adsorption bed is provided with an industrial volatile organic pollutant waste gas inlet, a purified gas outlet, a desorbed waste gas output opening, a desorbed gas input opening, a desorbed gas circulating outlet and a desorbed gas circulating inlet, and 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 desorbed gas feed inlet and a desorbed gas discharge outlet. According to the invention, the thermal efficiency of processing is improved, and the heat recycling rate is improved; in the process of burning, the internal temperature of the catalytic bed is relatively uniform, so that the burning efficiency and the purification rate are increased, and the heat exchange is increased, therefore, the heat energy is relatively rationally utilized, and the purification system complies with the requirements of energy conservation and emission reduction.

Description

technical field [0001] The invention belongs to the field of purification systems, in particular to a fully automatic special purification system for industrial volatile organic pollutants in PM2.5. Background technique [0002] With the improvement of people's living standards, people are paying more and more attention to environmental pollution, and air pollution has attracted more and more attention. At present, the main equipment in the purification system for industrial volatile organic pollutants includes adsorption beds and catalytic The catalytic bed is usually made of heat-resistant steel plate or industrial kiln masonry material. The air inlet and outlet of the existing catalytic bed structure are located at the upper and lower ends of the catalytic bed, although the existing structure can realize Catalytic combustion, but there are the following problems: 1. The structure of the catalytic bed furnace itself has a large heat loss, and the efficiency of heat recover...

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Problems solved by technology

[0002] With the improvement of people's living standards, people are paying more and more attention to environmental pollution, and air pollution has attracted more and more attention. At present, the main equipment in the purification system for industrial volatile organic pollutants includes adsorption beds and catalytic The catalytic bed is usually made of heat-resistant steel plate or industrial kiln masonry material. The air inlet and outlet of the existing catalytic bed structure are located at the upper and lower ends of the catalytic bed, although the existing structure can realize Catalytic combustion, but there are the following problems: 1. The structure of the catalytic bed furnace itself has a large heat loss, and the efficiency of heat recovery and utilization is low; 2. The temperature in the structure of the catalytic bed furnace body is uneven, and the overall temperature is high in the center and low in 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 of energy saving and emission reduction. In addition, the desorption gas concentration of the adsorption bed cannot be well controlled during the desorption process. Control, affecting catalytic combustion efficiency and thermal energy utilization

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