High-efficiency energy-saving adsorption system for industrial volatile organic pollutants

Abstract

The invention relates to a high-efficiency energy-saving adsorption system for industrial volatile organic pollutants. The system comprises a filter, a flame arrester, an adsorption bed and an adsorption main fan which are connected through pipelines in turn, wherein the two opposite sides of an activated carbon bed body of the adsorption bed are connected with an air inlet expanding part and an air outlet necking part respectively; the air inlet expanding part is fixedly provided with an air distribution plate; a plurality of layers of activated carbon clapboards are arranged in the activated carbon bed body; the two opposite side walls of the activated carbon bed body have a hollow structure; the activated carbon clapboards have a hollow structure; the activated carbon clapboards with the hollow structure are communicated with the side walls with the hollow structure; and the two side walls with the hollow structure are provided with a hot air inlet and a hot air outlet respectively. The high-efficiency energy-saving adsorption system for the industrial volatile organic pollutants has a simple structure and a scientific and reasonable design, is safe and reliable, reduces the consumption of electric energy, shortens the desorption operation period, reduces operation cost, and accords with the national policy of energy conservation and emission reduction.

Description

Technical field [0001] The invention belongs to the field of adsorption systems, in particular to a high-efficiency and energy-saving adsorption system for industrial volatile organic pollutants. Background technique [0002] The main equipment of the existing industrial volatile organic pollutant adsorption system includes a filter, a flame arrestor, an adsorption bed and an adsorption fan. The above-mentioned devices are connected by pipelines, and valves are installed on the pipelines. The adsorbent beds that are mainly used for adsorption generally use activated carbon. As an adsorbent, the main structure of the adsorbent bed includes the air inlet flaring part, the activated carbon bed body and the air outlet contraction part. The two opposite sides of the activated carbon bed body are respectively connected to the air inlet flaring part and the air outlet contraction part. An air distribution plate is fixed on the mouth, and a multi-layer activated carbon separator is insta...

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Problems solved by technology

[0002] The main devices of the existing industrial volatile organic pollutant adsorption system include filters, flame arresters, adsorption beds and adsorption fans. The above devices are connected through pipelines in turn, and valves are installed on the pipelines. The adsorption bed that mainly plays the role of adsorption generally uses activated carbon. As an adsorbent, the main structure of the adsorption bed includes an air inlet flaring part, an activated carbon bed body, and an air outlet constriction part. The mouth is fixed with an air distribution plate, and the activated carbon bed is equipped with multi-layer activated carbon partitions for placing activated carbon. After the industrial volatile organic pollutants in the adsorption bed are saturated, desorption and regeneration must be carried out, that is, the industrial adsorption on the activated carbon. Volatile organic pollutants are desorbed by hot air to recycle activated carbon. The desorption process of the adsorption bed requires a higher temperature. Generally, electric heating equipment is installed in front of the air inlet of the adsorption bed to make the hot air entering the adsorption bed Reach a temperature suitable for desorption, but each desorption uses electric heating equipment, which consumes a lot of energy and operating costs. In the process of adsorption plus catalytic combustion, if the heat energy of catalytic combustion is not used, it will also cause waste and waste heat pollution to the environment

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