Device and process for purifying and treating tar tail gas and asphalt fume

Abstract

The invention relates to a device and process for purifying and treating tar tail gas and asphalt fume. The device comprises an incinerator and a chimney, wherein the incinerator is composed of a first combustion chamber, a second combustion chamber, a first heat storage chamber and a second heat storage chamber, the first combustion chamber is arranged below the second combustion chamber, and thefirst combustion chamber and the second combustion chamber communicates with each other; the two ends of the first combustion chamber communicates with the top of the first heat storage chamber and the top of the second heat storage chamber respectively, a first combustor is arranged inside the first combustion chamber, a second combustor is arranged inside the second combustion chamber, and a heat accumulator is arranged inside the first heat storage chamber and the second heat storage chamber. By adopting a process combining a heat storage type incinerator and a direct combustion type incinerator, the tar tail gas and the asphalt fume can be purified at the same time, the problem that the heat storage type incinerator is difficult to purify the asphalt fume and the direct combustion type incinerator is low in heat efficiency is solved, meanwhile, waste gas waste heat is recycled, the operation cost of the incinerator is reduced, and the purposes of energy conservation and environmental protection are achieved.

Description

technical field [0001] The invention relates to the technical field of coal coke chemical industry, in particular to a device and process for purifying tar tail gas and asphalt smoke. Background technique [0002] Tar processing is a traditional high-pollution industry. In recent years, with the continuous development of the coal chemical industry, the tar processing industry has also developed rapidly, but it also has adverse effects on the natural environment. A large amount of tar tail gas and asphalt smoke are produced during tar processing. If people are exposed to tail gas pollution for a long time, it can cause respiratory and skin diseases, especially the benzopyrene in asphalt smoke is extremely carcinogenic, so tar tail gas And the purification and treatment of asphalt fume is very necessary. At present, the treatment methods of tar tail gas and asphalt fume in tar processing enterprises mainly include absorption method, adsorption method, electrostatic capture me...

AI Technical Summary

Problems solved by technology

[0005] The invention provides a purification treatment device and process for tar tail gas and asphalt fumes, which can purify tar tail gas and asphalt fumes at the same time by adopting the combination of regenerative incinerator and direct-fired incinerator, which not only solves the problem of regenerative It is difficult for the incinerator to purify asphalt smoke, and the thermal efficiency of the direct-fired incinerator is low. At the same time, the waste heat of the exhaust gas is recycled, which reduces the operating cost of the incinerator and achieves the purpose of energy saving and environmental protection.

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