Use method of spiral step fin tower for purifying VOCs (volatile organic compounds) waste gas

Abstract

The invention relates to the technical field of control on VOCs (volatile organic compounds) waste gas, in particular to a use method of a spiral step fin tower for purifying the VOCs waste gas. The use method is characterized by comprising use methods of a tower body assembly, a slag discharge rotary disc assembly, a support roll assembly and a support table. The use method has the advantages that the spiral conveying is effectively combined with a tower reaction working principle, and the spiral conveying is utilized, so that the sustained moving of an adsorbent under the sealing condition is realized, the interphase contact area with a tower reactor is large, and the mass transfer efficiency is high; the adsorbent filler can continuously maintain interphase contact with the VOCs waste gas; under the saturation condition, the contact is timely disengaged, and the technical problem of difficulty in realizing continuous purifying of the VOCs waste gas under the condition of continuous production is solved.

Description

technical field [0001] The invention relates to the technical field of volatile organic compound waste gas treatment, in particular to a method for using a spiral stepped fin tower for purifying VOCs waste gas. Background technique [0002] Gaseous pollutants emitted by industry are the main source of atmospheric environmental pollutants, among which volatile organic compound waste gas (VOCs) is a gaseous pollutant that is seriously harmful to the environment, and it is also an occupational hazard that affects the health of operators in the workplace It is widely derived from chemical industries such as paints, coatings, coatings, lubricants, and rubber. Due to its huge destructive effect on the human body and the natural environment, the country has issued relevant laws and regulations to strictly control its governance and emissions. At present, the commonly used treatment methods of organic waste gas treatment technology include combustion method, chemical oxidation meth...

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Problems solved by technology

[0003] Existing technology-Aiming at the practical problems of large air volume VOCs waste gas treatment, the technical solution of the electrothermal purification filter element is proposed for the enclosure structure, the air inlet surface, and the air outlet surface with one or more layers of porous sieve plates or adsorption beds filled with sieves. However, there is no solution for how to replace the electrothermal purification filter element in normal production after the adsorption of VOCs exhaust gas is saturated; prior art 2 proposes the use of molecular sieve runners and honeycomb activated carbon runners for VOCs exhaust gas adsorption and desorption for the practical problems of VOCs exhaust gas treatment , Concentration, and combustion technical solutions, because VOCs exhaust gas usually carries particulate matter, because the particulate matter is solid, it cannot be desorbed, concentrated, and then sent to the combustion device through the induced draft fan. The more it collects, the more the purification device will be blocked at last. From the above-mentioned prior art, it can be seen that it has not been able to continuously purify VOCs waste gas under the condition of continuous production and propose a perfect technical solution

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