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Drainage recycling channel device for desulfurization island and desulfurization island drainage recycling system

A desulfurization island and drainage ditch technology, applied in waterway systems, water supply devices, sewage removal, etc., can solve the problems of slurry leakage, waste of water resources, large process water consumption, etc., to reduce treatment costs, reduce water consumption, reduce The effect of environmental risks

Pending Publication Date: 2021-10-01
HUANENG POWER INT INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The wet desulfurization process uses water as the carrier. The whole system is from limestone pulping, flue gas reaction to the product gypsum dehydration system. The process water consumption is relatively large. At the same time, there are many equipment and pipelines in the desulfurization system. For flushing, it is necessary to measure pH and slurry density online. The measurement of pH and density will continuously generate slurry to be discharged outside the absorption tower. In addition, leakage of slurry is also very easy to occur during operation. These process water and slurry will be directly discharged. lead to waste of water resources

Method used

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  • Drainage recycling channel device for desulfurization island and desulfurization island drainage recycling system
  • Drainage recycling channel device for desulfurization island and desulfurization island drainage recycling system
  • Drainage recycling channel device for desulfurization island and desulfurization island drainage recycling system

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Embodiment 1

[0027] A drainage recovery ditch device for a desulfurization island, including a drainage pit 1, a main drainage ditch 2 and a plurality of recovery ditch components used to recover the desulfurization facility drainage of the desulfurization island, the recovery gutter component includes a plurality of recovery gutter components Ditch 3 and recovery ditch 3 are arranged around the desulfurization facility. The water outlet of recovery ditch 3 communicates with main drainage ditch 2 , and the outlet end of main drainage ditch 2 communicates with drainage pit 1 .

[0028] In this example, if figure 1 As shown, the desulfurization facility of the desulfurization island includes an accident slurry tank 14, two absorption towers 12, a chimney 13 and a process water tank 15, figure 1 The desulfurization facilities share a set of drainage recovery channel device.

[0029] Specifically, such as figure 1 As shown, the peripheral side of the absorption tower 12 is provided with two ...

Embodiment 2

[0035] A desulfurization island drainage recovery system is used to recover the desulfurization facility drainage of the desulfurization island, including multiple desulfurization facilities and multiple sets of drainage recovery channel devices for the desulfurization island.

[0036] In this embodiment, the desulfurization facility includes an emergency slurry tank 14, two absorption towers 12, a chimney 13, a process water tank 15, two limestone slurry tanks 16 and two gypsum slurry tanks.

[0037] During specific implementation, three sets of drainage recovery channel devices are provided. The accident slurry tank 14, two absorption towers 12, chimney 13 and process water tank 15 share a set of drainage recovery channel devices, and the two limestone slurry tanks 16 share a set of drainage recovery channels. Channel device, two gypsum slurry tanks share a drainage recovery channel device.

[0038] The structure of the emergency slurry tank 14, the two absorption towers 12,...

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Abstract

The invention relates to a drainage recycling channel device for a desulfurization island and a desulfurization island drainage recycling system. The drainage recycling channel device comprises a drainage pit, a main drainage ditch and a plurality of recycling ditch assemblies used for recycling drainage of desulfurization facilities of the desulfurization island, and each recycling ditch assembly comprises a plurality of recycling ditches; the recycling ditch is arranged on the peripheral side of the desulfurization facility, the water outlet end of the recycling ditch is communicated with a main drainage ditch, and the water outlet end of the main drainage ditch is communicated with the drainage ditch. Compared with the prior art, the water consumption of the desulfurization system can be reduced, the treatment cost of recycled water is reduced, and waste of water resources is prevented.

Description

technical field [0001] The invention relates to the field of desulfurization treatment, in particular to a drainage recovery channel device for a desulfurization island and a desulfurization island drainage recovery system. Background technique [0002] The desulfurization technologies commonly used in industrial production mainly include two types: wet desulfurization and dry desulfurization. Due to the different desulfurization technologies, there are also obvious differences in the principle of action. The so-called wet desulfurization refers to a method of using liquid to reduce the sulfide content in the sulfide flue gas, and it is widely used in the desulfurization absorption tower of the power plant. Among them, the limestone-gypsum wet desulfurization process is mature, reliable in operation, simple in operation, and high in desulfurization efficiency. 90% of the capacity of the desulfurization unit. [0003] The wet desulfurization process uses water as the carri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/50B01D53/80B01D53/96E03F5/04E03F1/00E03F5/10E03F5/14E03F5/26E03F5/22E03F11/00E02D19/04
CPCB01D53/502B01D53/80B01D53/96E03F5/04E03F5/041E03F1/00E03F1/002E03F1/006E03F5/10E03F5/101E03F5/105E03F5/14E03F5/26E03F5/22E03F11/00E02D19/04B01D2251/404Y02A20/208
Inventor 何海涛韩丰刘伟浦佳栋徐惠金宏仁
Owner HUANENG POWER INT INC
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