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Desulfurization slurry white elimination system and working method thereof

The technology of desulfurization slurry and working method is applied in the field of flue gas emission of power plants, which can solve problems such as difficult to eliminate white smoke plumes, and achieve the effect of solving water balance problems and avoiding equipment failures.

Pending Publication Date: 2022-03-08
HUANENG CLEAN ENERGY RES INST +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] The more commonly used scheme is the direct heating scheme (MGGH), but the MGGH uses the flue gas after the air preheater as the heat source. It is difficult to eliminate the white plume of tail gas only by MGGH

Method used

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  • Desulfurization slurry white elimination system and working method thereof

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Embodiment Construction

[0023] The present invention is described in further detail below in conjunction with accompanying drawing:

[0024] like figure 1 As shown, the desulfurization slurry whitening system according to the present invention includes a flue gas cooler 1, a flue gas heater 2, a dust collector 3, an induced draft fan 4, a desulfurization tower 5, a chimney 6, a slurry pump 7, and a flash tank 8.

[0025] The flue gas inlet of the flue gas cooler 1 is connected with hot flue gas, the flue gas outlet of the flue gas cooler 1 is connected to the inlet of the dust collector 3, the outlet of the dust collector 3 is connected to the inlet of the induced draft fan 4, and the exit of the induced draft fan 4 It is connected with the flue gas inlet of the desulfurization tower 5 , the flue gas outlet of the desulfurization tower 5 is connected with the flue gas inlet of the flue gas heater 2 , and the flue gas outlet of the flue gas heater 2 is connected with the inlet of the chimney 6 .

[...

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Abstract

The invention discloses a desulfurization slurry white elimination system and a working method thereof. The desulfurization slurry white elimination system comprises a flue gas cooler, a flue gas heater, a desulfurization tower and a chimney, a flue gas inlet of the flue gas cooler is communicated with hot flue gas, a flue gas outlet of the flue gas cooler is connected with a flue gas inlet of the desulfurizing tower, a flue gas outlet of the desulfurizing tower is connected with a flue gas inlet of the flue gas heater, and a flue gas outlet of the flue gas heater is connected with an inlet of the chimney. The intermediary water outlet of the flue gas cooler is connected with the intermediary water inlet of the flue gas heater, and the intermediary water outlet of the flue gas cooler is connected with the intermediary water inlet of the flue gas heater. And the effect of deeply eliminating white smoke can be achieved without being influenced by the external environment temperature.

Description

technical field [0001] The invention belongs to the field of flue gas discharge in power plants, and relates to a desulfurization slurry whitening system and a working method thereof. Background technique [0002] "Smoke plume whitening" refers to reducing the discharge temperature and moisture content of flue gas by adopting corresponding technologies, collecting the moisture in the supersaturated water vapor in the flue gas, and reducing the emission of condensable particulate matter such as soluble salts, sulfuric acid mist, and organic matter in the flue gas . "Smoke plume elimination" can firstly eliminate visual pollution, and eliminate the white plume at the chimney outlet, eliminate visual pollution that the public dislikes, and establish a positive corporate social image; secondly, the water resources condensed and returned can be reused to achieve the goal of water saving effect; and after the saturated flue gas is condensed, a large number of fine liquid droplets...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23J15/06F23J15/08F23L15/00B01D3/06
CPCF23J15/06F23J15/08F23L15/00B01D3/06Y02E20/34
Inventor 彭烁刘新国周贤李鹏钟迪肖发亮姚国鹏黄永琪安航白烨
Owner HUANENG CLEAN ENERGY RES INST
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