Device for purifying and treating tail gas

Abstract

The present invention relates to a tail-gas purification processing device, which belongs to the environmental protection and drainage reduction technical field, and comprises a tail-gas buffering tank (1), two-level or more tail-gas alkaline absorption tanks (2, 3) and a waste-water cycling pool (4); a ceramic pump (6) is arranged at the side of the cycling pool (4); the inlet of the ceramic pump is connected with the bottom end of the waste-water cycling pool (4); the discharging port of the ceramic pump (6) is communicated with a spraying nozzle of a quartz vacuum injection pump (12) through a pipeline; waste gas flows by the guiding port of the quartz vacuum injection pump (12) and is introduced into the waste-water cycling pool by the sub-pressure that is generated by injection the waste water through a guiding pipe (18). The tail-gas purification processing device has compact structure, simple structure, low cost and easy operation. Through the alternation of the level of the tail-gas alkaline absorption tank, the waste gas that is produced by different chemical operation units can be absorbed and processed.

Description

technical field [0001] The invention belongs to the technical field of environmental protection and emission reduction. In particular, it relates to a tail gas purification treatment device. Background technique [0002] Exhaust gas from chemical and smelting industries contains a large amount of nitrogen oxides (mainly NO and NO 2 , collectively referred to as NO X ), sulfur dioxide SO 2 Harmful substances such as dust and dust will form yellow or brown smoke when discharged into the air, commonly known as "Huanglong". Compared with ordinary flue gas containing a small amount of nitrogen oxides, this kind of gunpowder gas is more harmful. SO 2 and NO X Exhaust gas not only causes acid rain and acid fog, but also destroys the ozone layer. In addition to causing direct physical and mental damage to nearby residents, it also causes serious damage to the surrounding environment. It is one of the important sources of air pollution. Therefore, the environmental control of ...

AI Technical Summary

Problems solved by technology

Although this device is feasible, the use of spray chambers and absorption towers requires large wind resistance, and high-power high-pressure induced draft fans need to be configured. Not only is the process complicated, but the high-pressure induced draft fans have high energy consumption, high noise, high maintenance costs, and new problems. noise pollution

Therefore, after the installation project of the factory is completed after the environmental assessment and acceptance, people often abandon it, resulting in a waste of investment.

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