A spiral stepped fin tower for purifying vocs exhaust gas

Abstract

The invention relates to the technical field of treatment of volatile organic compound waste gas and particularly relates to a spiral step fin tower for purifying VOCs waste gas. The spiral step fin tower is characterized by comprising a tower body component, a slag-discharging rotation disc component, a support roller component and a bearing platform. Through the spiral step fin tower for purifying VOCs waste gas, spiral conveying and tower reaction operation principle are effectively combined; through the adoption of spiral conveying, the continuous movement of adsorbent under the sealed condition and the advantages of large interphase contact area and high mass transfer efficiency of a tower reactor can be achieved; adsorbent filler can be in continuous interphase contact with VOCs waste gas and also can be out of contact with the VOCs waste gas in time during saturation; the technical problem of continuously purifying VOCs waste gas under the continuous production condition can be solved.

Description

technical field [0001] The invention relates to the technical field of volatile organic compound waste gas treatment, in particular to 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 method, chemical absorp...

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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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