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Composite type wet-method flue gas desulfurizing device

A wet flue gas desulfurization and composite technology, applied in separation methods, chemical instruments and methods, and dispersed particle separation, can solve the problems of high desulfurization cost and low desulfurization efficiency, and achieve improved desulfurization efficiency, high desulfurization efficiency, The effect of reducing the number of slurry cycles

Inactive Publication Date: 2012-02-29
SOUTH CHINA UNIV OF TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] In order to overcome the shortcomings and deficiencies of the prior art, the present invention provides a composite wet flue gas desulfurization device, which solves the problems of high desulfurization cost and low desulfurization efficiency in the prior art

Method used

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  • Composite type wet-method flue gas desulfurizing device

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Embodiment Construction

[0022] The specific embodiments of the present invention will be described in further detail below, but the embodiments of the present invention are not limited thereto.

[0023] Such as figure 1 shown. The composite wet flue gas desulfurization device of the present invention comprises an absorption tower, which is characterized in that a fine mist spray layer II, a conventional spray layer III and a mist removal layer IV are sequentially arranged in the absorption tower from bottom to top; the fine mist The spray layer II is composed of a plurality of ultrasonic atomizing nozzles 7 arranged in arrays; the conventional spray layer III is composed of several mechanical nozzles 2 arranged in arrays; the defogging layer IV is a demister, and the absorbing A slurry storage area I is provided at the bottom of the tower. The slurry channel 7-1 of the ultrasonic atomizing nozzle 7 and the mechanical nozzle 2 are respectively connected to the slurry storage area I pipeline through ...

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Abstract

The invention discloses a composite type wet-method flue gas desulfurizing device which comprises a absorption tower, wherein a mist spraying layer, a conventional spraying layer and a demisting layer are sequentially arranged in the absorption tower from bottom up; downward ultrasonic atomizing spray nozzles are arranged on the mist spraying layer in an array manner; the conventional spraying layer comprises a plurality of columns of mechanical spray nozzles distributed in an array manner; the demisting layer is a demister; and a slurry storage zone and a slurry recovery zone are arranged at the bottom in the absorption tower. By adopting the device, the desulfurizing liquid-gas ratio can be greatly reduced; the number of slurry pumps and the atomizing spray nozzles is reduced; the volume of a desulfurizing spraying tower is reduced; and the desulfurizing system cost and the desulfurizing energy consumption are reduced. The composite type wet-method flue gas desulfurizing device can be widely applied to flue gas desulfurizing systems in industries such as power, petrification, metallurgy, cement and the like.

Description

technical field [0001] The invention relates to a flue gas desulfurization device, in particular to a composite wet flue gas desulfurization device. Background technique [0002] Air pollution is an important environmental factor that restricts the coordinated and stable development of the economy, among which SO2 pollution has the most serious impact. The main source of SO2 in the atmosphere is coal combustion, and the flue gas after coal combustion contains a large amount of SO2, which accounts for more than 90% of the total emissions. Lime / limestone-gypsum wet flue gas desulfurization technology is currently the most mature technology for SO2 control and has been widely used. However, there are also problems of low desulfurization efficiency, high energy consumption and high desulfurization cost. [0003] In the wet desulfurization process, the core part is the desulfurization tower. In the desulfurization tower, the sulfur-containing flue gas is absorbed and oxidized....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/78B01D53/50
Inventor 刘定平张竞争刘畅
Owner SOUTH CHINA UNIV OF TECH
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