An environmental protection device and process for reducing smoke plume in flue gas

Abstract

The invention discloses an environmental protection device and process for reducing smoke plume in flue gas, including a flue gas desulfurization device, followed by an absorption tower, a sedimentation tank, a clear water tank, a centrifugal pump, an electric catcher, and a chimney. The flue gas outlet of the flue gas desulfurization device is connected to the air inlet on the side of the absorption tower, and the liquid outlet at the bottom of the absorption tower is connected to the sedimentation tank, and the sedimentation tank is provided with a stirring device for processing impurities in the absorbent; after the sedimentation tank Connect the clean water pool, the clean water pool is connected to the liquid inlet on the side of the absorption tower through a centrifugal pump; the gas outlet on the upper part of the absorption tower is connected to the electric catcher for electric dust removal, and the upper outlet of the electric catcher is connected to the chimney. The present invention uses clean water at normal temperature as the absorbent, which can not only remove impurities in the flue gas, but also reduce the temperature of the flue gas. After subsequent precipitation treatment, the absorbent returns to the clear water pool for recycling, and at the same time reduces water vapor. emissions, reducing the greenhouse effect.

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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