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Environmental-protection comprehensive treatment system and environmental-protection comprehensive treatment process for high-pollution-factor low-temperature flue gas

A low-temperature flue gas and comprehensive treatment technology, applied in the direction of dispersed particle separation, dispersed particle filtration, chemical instruments and methods, etc., can solve the problems of inability to meet the new requirements of environmental protection, complex treatment system, low desulfurization efficiency, etc., to ensure stability and high efficiency Operation, reduce process, improve the effect of desulfurization rate

Inactive Publication Date: 2016-07-20
湖北思搏盈环保科技股份有限公司
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  • Application Information

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Problems solved by technology

The traditional dry method has low desulfurization efficiency and cannot meet the new requirements of environmental protection; the wet method has a high desulfurization rate and high absorbent utilization rate, but the treatment system is complex and easily causes secondary pollution; the semi-dry method reaction product is dry In powder form, it will alleviate problems such as corrosion and condensation in the subsequent process, and its desulfurization rate is between the dry method and the wet method

Method used

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  • Environmental-protection comprehensive treatment system and environmental-protection comprehensive treatment process for high-pollution-factor low-temperature flue gas

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Embodiment Construction

[0027] In the embodiment of the present invention, a high-pollution factor low-temperature flue gas environmental protection comprehensive treatment system includes a fully automatic desulfurizer delivery device 1, a water pump 3, a water tank 4, a two-fluid spray gun 5, an air compressor 6, a desulfurization tower 7, a bag type Dust removal unit 8, dilution fan 9, ammonia-air mixer 10, ammonia injection grid 11, medium and low temperature SCR reactor 12, chimney 14, induced draft fan 15 and bypass 16; the fully automatic desulfurizer delivery device 1 passes The flue gas pipeline is connected to the air inlet of the desulfurization tower 7, and an industrial exhaust gas inlet is provided on the flue gas pipeline between the automatic desulfurizing agent delivery device 1 and the desulfurization tower 7, and one end of the water tank 4 is connected to the water pump 3, and the The other end of the water tank 4 is connected to the desulfurization tower 7 through the double-fluid...

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Abstract

The invention discloses an environmental-protection comprehensive treatment system for high-pollution-factor low-temperature flue gas. The environmental-protection comprehensive treatment system comprises a full-automatic desulfurizer delivery device, a desulfurization tower and a medium-and-low-temperature SCR (selective catalytic reduction) reactor. The full-automatic desulfurizer delivery device is connected with a gas inlet of the desulfurization tower through a flue gas pipeline. A water pump is connected with one end of a water tank. The other end of the water tank is connected with the desulfurization tower through a double-fluid spray gun. The double-fluid spray gun is connected with an air compressor. A gas outlet of the desulfurization tower is connected with a bag-type dedusting unit through a flue gas pipeline. A dilution fan is connected with an ammonia-air mixer through a pipeline. An ammonia inlet is arranged on the pipeline between the dilution fan and the ammonia-air mixer. The ammonia-air mixer and the bag-type dedusting unit are connected with the medium-and-low-temperature SCR reactor after passing an ammonia spraying grille. An outlet of the medium-and-low-temperature SCR reactor passes a draught fan to be connected with a chimney. The environmental-protection comprehensive treatment system has the advantages that flue gas heat and temperature gradient are utilized reasonably, high-temperature dedusting processes are reduced, stable efficient operation of a denitration system and service life of catalysts can be guaranteed, and flue gas treatment effect can be improved.

Description

technical field [0001] The invention relates to an environment-friendly comprehensive treatment system and technology for low-temperature flue gas with high pollution factors. Background technique [0002] With the development of my country's industry, the amount of industrial waste gas emissions has increased sharply, and the impact on the environment has become greater and greater. Environmental protection requirements have received more and more attention, and the state has stricter regulations on the emission of air pollutants. [0003] For glass and other emissions containing high pollution factors (high NO X concentration, high SO 2 , high dust) waste gas industry, in order to reduce the equipment footprint and simplify the process, desulfurization, denitrification and dust removal are integrated to treat waste gas, which can be roughly divided into two routes, first denitrification and then desulfurization and dust removal, or first desulfurization and dust removal a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/80B01D53/50B01D53/90B01D53/56B01D46/02
CPCB01D46/023B01D53/502B01D53/504B01D53/8631B01D53/90B01D2251/2062B01D2251/404
Inventor 鲍剑王玉静贾丹丹申丽君
Owner 湖北思搏盈环保科技股份有限公司
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