A flue gas desulfurization device and method

A desulfurization device and flue gas technology, applied in separation methods, chemical instruments and methods, gas treatment, etc., can solve problems affecting the continuity and work efficiency of flue gas desulfurization, improve desulfurization efficiency and continuity, and avoid direct contact , the effect of avoiding the loss of waste heat of flue gas

Active Publication Date: 2020-01-14
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method has the advantages of clean product and strong operability, but the adsorbent needs to be regenerated repeatedly, which affects the continuity and work efficiency of flue gas desulfurization

Method used

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  • A flue gas desulfurization device and method

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Embodiment Construction

[0030] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0031] see figure 1 , the present invention includes a casing 9 with a semicircular structure at the upper end and a central shaft 10 arranged at the center of the bottom of the semicircular structure in the casing. The desulfurization impeller 11 is installed in the casing 9 through the central shaft 10. The inner wall of the semicircular structure at the upper end is in close contact; the surface of the desulfurization impeller 11 is a mesh-like structure, which is covered or fixed with activated carbon, activated coal, activated aluminum chloride, which has physical adsorption and chemical adsorption functions for sulfur dioxide. Adsorption materials of zeolite or silica gel, wherein the fixing material is polytetrafluoroethylene or silicon dioxide resistant to sulfuric acid;

[0032] A flue gas inlet pipe 4 and a flue gas outlet pipe 1 with a flue gas in...

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Abstract

The invention relates to a device and a method for desulfurizing flue gas. The device and the method have the advantages that a rotary impeller structure containing adsorbing material is applied into a cavity of a desulfurizing device, the adsorbing catalyzing and separation of sulfur dioxide in the flue gas can be simultaneously and continuously performed, and the desulfurizing efficiency and continuity are greatly improved; a desulfurizing impeller is made of heat insulation material, the tail end of the impeller is tightly connected with a casing, the reverse flowing of flue gas and clean fluid promotes the clockwise rotation of the desulfurizing impeller, the direct contact between the flue gas and the clean liquid is avoided, the loss of flue gas residual heat in the desulfurizing process is avoided, the obstacle of flue gas flowing in the desulfurizing process is avoided, and the power consumption in the desulfurizing process is decreased to a greater extent; in the clockwise rotation process of the desulfurizing impeller, the flowing of flue gas and clean gas simultaneously generates certain pushing function, and the rotation energy consumption of the impeller is decreased.

Description

technical field [0001] The invention belongs to the technical field of flue gas treatment, and in particular relates to a flue gas desulfurization device and method. Background technique [0002] With the rapid development of my country's industry, there are more and more boilers and metallurgical steelmaking electric furnaces that use raw coal as fuel, and the pollutants emitted by these furnaces have brought great harm to the atmospheric environment, making my country's environmental governance face a lot. Therefore, the recovery and treatment technology of pollutants in flue gas is becoming more and more important. However, the composition of the flue gas is very complex, and the SO contained in the gas composition 2 It has become the main cause of air pollution, and the low-temperature corrosion caused by sulfur-containing flue gas in the waste heat utilization process will also bring great damage to the equipment. Therefore, reducing SO 2 Pollution has become a top pri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/06B01D53/50B01D53/88
CPCB01D53/06B01D53/8609B01D53/88B01D2253/10B01D2253/102B01D2253/106B01D2253/108B01D2253/112B01D2258/0283B01D2259/40086
Inventor 李印实王睿何雅玲陶于兵
Owner XI AN JIAOTONG UNIV
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