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A water-saving process for desulfurization, dust removal, fog removal and water saving of wet desulfurization tower

A technology for desulfurization, dust removal, and wet desulfurization, which is applied to the separation of dispersed particles, chemical instruments and methods, and combined devices to achieve the effects of simple installation, long service life, and low maintenance costs

Active Publication Date: 2017-06-30
江苏新中金低碳科技股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Another problem easily caused by wet desulfurization is the problem of "chimney rain". Chimney rain is acidic and contains dust, gypsum, limestone and dissolved salts, which brings new environmental problems around the power plant

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  • A water-saving process for desulfurization, dust removal, fog removal and water saving of wet desulfurization tower
  • A water-saving process for desulfurization, dust removal, fog removal and water saving of wet desulfurization tower

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Embodiment Construction

[0025] The technical problems, technical solutions and implementation effects solved by the present invention will be further described in detail below in conjunction with the accompanying drawings. This description is only used to explain the present invention, not to limit the present invention.

[0026] Such as figure 1 , 2 As shown, the flue gas desulfurized by the wet desulfurization tower enters the dedusting, demisting and water-saving device. The atomization angle is 130°~170°, which is beneficial to the collision and removal between liquid droplets and fine particles. The atomizing nozzle is connected to the water supply equipment through the pipeline. The fine dust and liquid droplets in the flue gas collide strongly with the mist sprayed from the atomizing nozzle, and the water vapor begins to condense and grow on the surface of the dust particles. The impact cooling chamber is spherical or elliptical, with a spherical diameter of 150mm to 1200mm, and an elliptic...

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Abstract

The invention discloses a dust-removing, mist-removing and water-saving technology for desulfurizing of a wet desulfurizing tower and relates to the field of waste gas purifying. The dust-removing, mist-removing and water-saving technology solves the problems that gypsum rain happens in wet type desulfurizing, and the cost is too high in wet type electrostatic dust removing. An impact cooling room, a coagulating room and a fine particle filtering unit are included. An upper opening of the impact cooling room is connected with a lower opening of the coagulating room through a bottleneck, and the fine particle filtering unit is fixed to the top of the coagulating room. An atomizing nozzle is further arranged in the center position, close to the lower opening, in the impact cooling room. An opening of the atomizing nozzle is upward, and the atomizing nozzle is connected with an external water supplying device through a pipeline. The dust-removing, mist-removing and water-saving technology is low in manufacturing cost, simple in installation, long in service life, free of risks of scaling and blocking, and capable of solving the problem of gypsum rain; water in separated smoke can be recovered into a desulfurizing system through a pipeline, separated out water can be used for the desulfurizing system, and zero water supplementing of the desulfurizing system can be achieved basically.

Description

technical field [0001] The invention relates to the field of waste gas purification, and specifically designs a wet-type desulfurization tower dedusting and demisting water-saving device, which is suitable for wet desulfurization systems, further dedusting and defogging the saturated flue gas behind the desulfurization tower, and recovering the saturated flue gas. free water and some water vapour. Background technique [0002] my country is a large coal-burning country. The sulfur dioxide, nitrogen oxides and dust produced by coal combustion have caused serious pollution to the atmospheric environment of our country. The flue gas desulfurization, denitrification and dust removal devices have played an important role in improving the atmospheric environment of our country. [0003] At present, my country's denitrification device is mainly based on the SCR process, supplemented by SNCR technology; the dust removal device is mainly based on electrostatic precipitator, bag filte...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D50/00B01D51/02
Inventor 张卫东谢国宝钱星星
Owner 江苏新中金低碳科技股份有限公司
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