System for synergistically removing flue gas fine particles and sulfur trioxide from desulfurization wastewater

A desulfurization wastewater and removal technology, applied in the fields of dispersed particle filtration, gaseous discharge wastewater treatment, water/sewage treatment, etc., can solve the problems of strong corrosiveness, high turbidity, and excessive heavy metal content in desulfurization wastewater

Pending Publication Date: 2021-04-06
ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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Problems solved by technology

However, in the process of wet desulfurization, a large amount of wastewater will be generated, and because the desulfurization wastewater has the characteristics of strong corrosion, high turbidity, excessive heavy metal content, high salt content, large fluctuations in water quality, and unstable water volume, it is difficult to treat

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  • System for synergistically removing flue gas fine particles and sulfur trioxide from desulfurization wastewater

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[0026]In order to make it possible to understand the invention, the advantages of the present invention will be more obvious and easy to understand, and the technical solutions in the embodiments of the present invention will be clear and completely, clearly, the embodiments described below are merely implemented Example, not all embodiments. Based on the embodiments of the present invention, there are all other embodiments obtained without making creative labor without making creative labor premises.

[0027]Seefigure 1, A schematic diagram of a system of a desulfurization wastewater association with a desulfurization wastewater coordinating to remove smoke particles and sulfur dioxide.

[0028]The present invention provides an embodiment of a system of desulfurization wastewater coordinating deprinted flue gas fine particles and sulfur dioxide, including: in turn, coal-fired boiler 1, SCR denitration apparatus, dust collector 3, wet desulfurization device 4, Tri / box 5 and solid-liquid...

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Abstract

The invention relates to the technical field of thermal power desulfurization wastewater resource utilization. The invention discloses a system for synergistically removing flue gas fine particles and sulfur trioxide from desulfurization wastewater. In the system, 80-150 DEG C flue gas between a dust remover and a wet desulfurization device is in contact with desulfurization wastewater fog drops treated by a triple box and a solid-liquid separation device, and the formed high-humidity low-temperature flue gas increases the volume percentage content of the flue gas water vapor of the wet desulphurization device to 10-15% and reduces the temperature to below 80 DEG C. Meanwhile, the wet desulphurization process is employed for optimization, so the flue gas is supersaturated in the wet desulphurization process, the supersaturated water vapor is nucleated and condensed on the surfaces of fine particles and SO3, and the fine particles / SO3 is condensed, grown and efficiently removed, and the safe discharge of desulfurization wastewater is realized. In addition, the system for synergistically removing flue gas fine particles and sulfur trioxide from desulfurization wastewater provided by the invention is simple in equipment and smaller in influence on unit operation.

Description

Technical field[0001]The present invention relates to the field of thermal electrical deinterleasculfur wastewater resource utilization, in particular, to a system of desulfurization wastewater associations de-use tobacco gas fine particles and trioxide.Background technique[0002]At present, my country is mainly based on the main fuel of fire power generation, and SO will be produced during combustion.3, Pollutants such as particulate matter cause huge pressure on the environment. In order to control the emissions of coal-fired contaminants, my country has enacted "Air Power Plant Atmospheric Pollutant Emission Standard" (GB13223-2011) in 2011 (GB13223-2011). Limestone - gypsum - Degrelation Process is widely used due to its wide range of applicability, ripening, and high reliability. However, a large amount of wastewater is generated during the wet desulfurization process, and since the desulfurization wastewater has the characteristics of high corrosion resistance, high turbidity, ...

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Application Information

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IPC IPC(8): B01D53/86B01D53/56B01D53/78B01D53/50C02F1/00C02F103/18B01D46/02B01D49/00
CPCB01D53/8628B01D53/78B01D53/50C02F1/00C02F2103/18B01D46/02B01D49/00
Inventor 赵宁冯永新廖宏楷林廷坤谢志文
Owner ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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