Zero-water-consumption zero-wastewater-draining desulfurization system and application

A technology of waste water discharge and desulfurization system, applied in the desulfurization system of the flue gas purifier after the boiler, zero water consumption, zero waste water discharge desulfurization system field, can solve the problems of high water consumption of the desulfurization system, high energy consumption of desulfurization waste water, difficult to deal with, etc. , to achieve the effect of significant environmental protection, efficient recycling, and less failure

Inactive Publication Date: 2015-12-23
AEROSPACE ENVIRONMENTAL ENG
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a desulfurization system with zero

Method used

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  • Zero-water-consumption zero-wastewater-draining desulfurization system and application
  • Zero-water-consumption zero-wastewater-draining desulfurization system and application
  • Zero-water-consumption zero-wastewater-draining desulfurization system and application

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Embodiment Construction

[0029] Hereinafter, the present invention will be further described in detail by taking the embodiment of the accompanying drawings as an example. The following embodiments are only descriptive, not restrictive, and cannot limit the protection scope of the present invention.

[0030] A desulfurization system with zero water consumption and zero waste water discharge, such as figure 1 As shown, the system includes boiler air preheater 1, low and low temperature heat exchange device 2, desulfurization wastewater atomization device 4, dry electrostatic precipitator 5, boiler induced draft fan 6, desulfurization absorption tower 7, flue gas The gas condensation and demisting device 9 and the chimney 10, the system also includes a condensed water tank 12, the condensed water tank is connected with the flue gas condensation and demisting device.

[0031] In this embodiment, the system also includes a gypsum cyclone 15, a gypsum belt dehydrator 14, a gypsum storage bin 13, a filtrate...

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Abstract

The invention relates to a zero-water-consumption zero-wastewater-draining desulfurization system. The system comprises a boiler air preheater, a low-temperature heat exchange device, a desulfurization wastewater atomization device, a dry type electric dust removal device, a boiler induced draft fan, a desulfurization absorption tower, a smoke condensation mist removing device and a chimney which are sequentially connected. The system further comprises a condensation water tank which is connected with the smoke condensation mist removing device. According to the desulfurization system, the low-temperature heat exchange device, the desulfurization wastewater atomization device, the smoke condensation mist removing device, a water resource recycling device and the like are additionally arranged on a traditional boiler tail smoke purification system, so that circular utilization of process water of the wet method desulfurization system is achieved, and zero consumption of the process water and zero emission of wastewater of the whole desulfurization system are achieved; in addition, the zero-water-consumption zero-wastewater-draining desulfurization system is convenient to operate, the running cost of equipment is reduced, failures are not prone to happening, and the system can be widely applied to desulfurization of wet method smoke.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and relates to a desulfurization system of a flue gas purifier after a boiler, in particular to a desulfurization system with zero water consumption and zero waste water discharge and its application. Background technique [0002] In the field of flue gas desulfurization for air pollutant control, the wet desulfurization process has the characteristics of high desulfurization efficiency and strong adaptability to coal types, and is a technology commonly used in thermal power plants. However, there are also difficult problems such as high water consumption, high energy consumption of desulfurization wastewater, and high investment in this process. The flue gas temperature at the inlet of the desulfurization system is generally 110°C-160°C, and the outlet temperature of the desulfurization system is generally around 50°C. The large consumption of evaporated water is the most promin...

Claims

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Application Information

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IPC IPC(8): F23J15/00F22D1/36B01D53/80B01D53/50
Inventor 王大勇王硕赵锋王苏宁吴雅菲张建帅晋华东王鹏郭文博
Owner AEROSPACE ENVIRONMENTAL ENG
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