Flue gas treatment device for asphalt workshop

Abstract

The invention discloses a flue gas treatment device for an asphalt workshop. The flue gas treatment device comprises a filtering region, a discharging region and a purifying region which are sequentially disposed; the filtering region is formed by a bent pipeline, and a filtering screen is arranged in the pipeline; arc baffles distributed up and down in a staggered manner are arranged in the discharging region, discharging bodies are arranged on internal concave surfaces of the arc baffles, and activated carbon is arranged on external convex surfaces of the arc baffles; the purifying region comprises an outer shell and an inner shell, a purifying filler is arranged between the outer shell and the inner shell, the inner shell is provided with through holes, a rotating shaft driven by a motor is arranged in the inner shell, and a filler plate is arranged on the rotating shaft; and the outsides of the discharging region and the purifying region are respectively connected with a first spraying pipe and a second spraying pipe, the first spraying pipe is provided with a first spraying header extending into the discharging region, and the second spraying pipe is provided with a second spraying header extending into a filler region. By combination of various purification means, the flue gas treatment device has effects of improving flue gas purifying efficiency and facilitating cleaning the inside of the device.

Description

technical field [0001] The invention relates to a purification technology for an asphalt workshop, in particular to a flue gas treatment device for an asphalt workshop. Background technique [0002] In the asphalt production process, asphalt and various modifiers, additives, fillers, etc. need to be heated and stirred according to different formulations, and then pumped to the production line through pipelines. In this process, a large amount of asphalt fume will be produced. This kind of fume not only has an unpleasant smell, but also some compounds are harmful to human health. In order to reduce the pollution of smoke to the atmosphere, it is usually necessary to treat the generated fume. Remove dust, tar, carbazole and other substances in the flue gas. The existing asphalt flue gas treatment devices generally use simple plate absorption towers, filtration or washing and spraying methods for treatment, and the process is simple. Due to the fast emission of flue gas, the c...

AI Technical Summary

Problems solved by technology

The existing asphalt flue gas treatment devices are generally treated by simple plate absorption towers, filtration or washing and spraying. There are problems of poor cooling effect and unsatisfactory purification efficiency, and generally the pipes for smoke exhaust treatment are long, and the inside of the pipes is not easy to clean. After a long time, pollutants are prone to deposit and blockage in the pipes, affecting the normal discharge of smoke. Some of the purifiers used to adsorb pollutants are saturated after long-term adsorption and filtration, and it is difficult to take out and clean them in the pipeline, which will affect the subsequent treatment effect, thus failing to fully purify the flue gas.

Therefore, the existing bitumen flue gas treatment device has the problems of unsatisfactory purification efficiency and difficult cleaning inside the pipeline.

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