Environment-friendly device and process for reducing smoke plume in flue gas

Abstract

The invention discloses an environment-friendly device and process for reducing smoke plume in flue gas. The device comprises a flue gas desulfurization device, an absorption tower, a precipitation tower, a clear water tank, a centrifugal pump, an electric fishing device and a chimney which are sequentially arranged behind the flue gas desulfurization device, wherein the flue gas outlet of the flue smoke desulfurization device is connected with the air inlet in the side face of the absorption tower; a liquid outlet in the lower part of the absorption tower is connected with the precipitation tank; a stirring device is arranged in the precipitation tank, and is used for treating impurities in absorbent; a clear water tank is connected behind the precipitation tank, and is connected with theliquid inlet in the side face of the absorption tower through a centrifugal pump; the air outlet in the upper part of the absorption tower is connected with an electric fisher for electric fishing and dust removing; and the upper outlet of the electric fisher is connected with the chimney. According to the environment-friendly device, normal temperature clear water is used as the absorbent, impurities in flue gas can be removed, and the flue gas temperature can be reduced; the absorbent returns to the clear water tank through subsequent precipitation treatment for recycling, emission of vaporcan be reduced, and the greenhouse effect is reduced.

Description

technical field [0001] The invention relates to an environmental protection device and process for reducing smoke plume in flue gas, belonging to the technical field of chemical equipment. Background technique [0002] In recent years, smog has become more and more serious, which has brought a huge impact on people's production and life. It is generally believed that the main sources of smog are industrial emission pollution, urban construction and decoration, road dust, living heating smoke exhaust, and automobile exhaust. Smog contains fine dust, volatile acid mist such as nitric acid and sulfuric acid mist, organic hydrocarbons, heavy metals, etc. These are the main components of industrial exhaust, heating boilers, and automobile exhaust. Especially coal-based thermal power generation, metallurgy, chemical industry, and building materials industries are one of the main sources of airborne particulates and sulfides. Most of the vehicle exhaust is sulfide, nitrogen oxide...

AI Technical Summary

Problems solved by technology

Population control is an arduous goal that cannot be achieved overnight; as for increasing investment in environmental protection and strengthening the formulation of environmental protection laws, the state has invested a lot of money during the "Twelfth Five-Year Plan" period for air pollution control, and the latest environmental protection law has also changed from 2015 to 2015. It began to be implemented on January 1, 2009. With the country's increasing enforcement of haze control, the emission reductions of dust, sulfur, and nitrate are huge. Despite such emission reductions, they still haven't brought us a continuous blue sky and white clouds. The smog in most areas is getting worse and worse. The reason is that there are still many deficiencies in the methods and methods of smog control. The development of new technologies for smog control still needs to be implemented.

[0003] Chinese patent CN 105805768 A discloses an energy-saving and environmentally-friendly equipment and process for reducing flue gas and white smoke. It realizes cooling and heat exchange through two fans and a glass plate heat exchanger, but does not specify the structure of the glass plate heat exchanger; Chinese patent CN 105964087 A discloses a system and method for reducing PM2.5 produced by flue gas. Demisting is performed twice through a variety of demisters, but the process is complicated and requires a variety of equipment, which also increases the cost

However, GGH is mostly made of metal materials, and it often breaks down and stops working due to acid dew point corrosion and blockage during use. Therefore, it is urgent to develop a new equipment and process to control the problem of PM2.5

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