Device for realizing zero emission of desulfurization wastewater and coupled cooperative control of white smoke plume

A desulfurization wastewater, collaborative control technology, applied in gaseous discharge wastewater treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve the problems of repeated investment in projects, high operating costs, and achieve a simple process flow Reliable, low operating costs, temperature reduction effect

Pending Publication Date: 2019-05-31
NANJING CHANGRONG ACOUSTIC INC +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention is to solve the problems of zero discharge of desulfurization wastewater and control of white plume in the current market. There is no mature technology to realize synchronous control of the two, resulting in repeated investment in projects and high operating costs. The use of flue gas The waste heat is used to realize the concentration and reduction of desulfurization wastewater through the gas-liquid phase change coupling heat exchanger, and then use part of the waste heat of the flue gas to flash the waste water concentrate, and finally realize zero discharge of desulfurization waste water; The target of effective white plume control

Method used

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  • Device for realizing zero emission of desulfurization wastewater and coupled cooperative control of white smoke plume
  • Device for realizing zero emission of desulfurization wastewater and coupled cooperative control of white smoke plume
  • Device for realizing zero emission of desulfurization wastewater and coupled cooperative control of white smoke plume

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Effect test

Embodiment 1

[0037] Such as figure 1 As shown, the schematic diagram of the device structure for realizing zero discharge of desulfurization wastewater and coupling and cooperatively controlling white plume provided by this embodiment, including the flue 1 at the entrance of the desulfurization tower 7 in a direction from far to near the entrance of the desulfurization tower 7 The flue 1 is connected with the dust collector 2, the induced draft fan 3 and the gas-liquid phase change coupling heat exchanger 6, the desulfurization waste water outlet of the desulfurization tower 7 is connected to the sedimentation tank 9, the outlet of the sedimentation tank 9 is connected to the clean water tank 11, the clean water tank 11 The outlet is connected to the liquid inlet of the gas-liquid phase variable heat exchanger 6 through a pipeline, a circulating pump 10 is arranged on the pipeline, and the liquid outlet of the gas-liquid phase variable heat exchanger 6 is connected to the concentrated liquid ...

Embodiment 2

[0040] This embodiment is a further improvement on the basis of embodiment 1, such as image 3 As shown, a first sonic soot blower 171 is provided on the flash tank 15, and a second sonic soot blower 172 is provided on the gas-liquid phase change coupling heat exchanger 6, which passes through the first sonic soot blower 171 The second sonic soot blower 172 performs sonic soot blowing on the solid deposition layer deposited on the inner wall of the flash tank 15 and the gas-liquid phase change coupled heat exchanger 6 to maintain the effective operation of the entire system.

[0041] The pipeline connecting the concentrated liquid tank 12 and the flash tank 15 is provided with a first sonic descaling device 181, and the pipeline connecting the clean water tank 11 and the gas-liquid phase variable coupling heat exchanger 6 is provided with a second sonic descaling device 182, The first sonic descaling device 181 and the second sonic descaling device 182 can effectively remove the p...

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Abstract

The invention discloses a device for realizing zero emission of desulfurization wastewater and coupled cooperative control of white smoke plume. The device comprises a deduster, an induced draft fan and a gas-liquid phase change coupled heat exchanger sequentially and connectedly arranged on a flue according to a direction from far to near to a desulfurization tower inlet, a desulfurization wastewater outlet of a desulfurization tower is connected with a settling tank, an outlet of the settling tank is connected with a clear water tank, an outlet of the clear water tank is connected to a liquid inlet of the gas-liquid phase change coupled heat exchanger through a pipeline, a circulating pump is arranged on the pipeline, a liquid outlet of the gas-liquid phase change coupled heat exchangeris connected with a concentrated liquid inlet of a concentrated liquid tank, a concentrated liquid outlet of the concentrated liquid tank is connected with a flash tank through a pipeline, and a flashgas outlet of the flash tank and a high-temperature gas inlet of the flash tank are connected to the flue in front of a deduster inlet through pipelines respectively. The device organically combineszero-emission of the wastewater with control of the white smoke plume of flue gas, thereby synchronously realizing the objective of pollutant treatment and control.

Description

Technical field [0001] The invention relates to the technical field of desulfurization wastewater and flue gas treatment, in particular to a device for realizing zero discharge of desulfurization wastewater and coupling and cooperatively controlling white plume, and is mainly used for a process method for zero discharge of desulfurization wastewater and white plume control. Background technique [0002] The desulfurization wastewater produced by the wet limestone-gypsum desulfurization process has the characteristics of equipment corrosion, easy fouling and clogging, and high suspended solids. It is the terminal wastewater that is difficult to treat in power plants, steel plants and other enterprises. Desulfurization wastewater usually adopts chemical treatment methods to flocculate, settle and neutralize the wastewater to reduce suspended solids and harmful substances in the wastewater. The treated effluent has a high salt content and direct discharge causes secondary pollution. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/10C02F103/18
Inventor 顾承真张荣初陈海洋闻小明李淼
Owner NANJING CHANGRONG ACOUSTIC INC
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