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Flue gas wet desulfurizing process

A wet desulfurization and flue gas technology, applied in separation methods, chemical instruments and methods, dispersed particle separation, etc., can solve the problems of low desulfurization efficiency, high cost, easy blockage of equipment, etc., and achieve enhanced contact effect and enhanced stability. The effect of good permeability and permeability

Inactive Publication Date: 2008-08-20
姚胜余
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of high cost, low desulfurization efficiency and easy blockage of equipment in the above-mentioned flue gas desulfurization process, the purpose of the present invention is to provide a flue gas with low cost, high desulfurization efficiency, easy blockage of equipment and reasonable process. Wet desulfurization process to improve desulfurization effect and reduce desulfurization project cost and desulfurization system operating cost

Method used

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  • Flue gas wet desulfurizing process

Examples

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Effect test

Embodiment 1

[0019] As shown in the figure, the flue gas from boilers, kilns, metallurgical furnaces and other devices enters the desulfurization tower 1 from the inlet 2 and rises, and is basically uniformly distributed in the multi-layer wire mesh area 3; the hydration absorption of gypsum and slaked lime The mixed liquid of the agent is transported by the slurry pump 5 and the infusion pipe 6 to the spray device 7 on the upper part of the desulfurization tower and sprayed down evenly; the flue gas is in reverse contact with the hydration absorbent, mainly forming a closer contact in the multi-layer wire mesh area , so that SO in the flue gas 2 After a chemical reaction occurs, it is transferred to the liquid phase, and the clean flue gas is discharged from the outlet 8 on the upper part of the desulfurization tower.

[0020] Absorbed SO 2 The hydration absorbent falls into the circulation tank 9 at the bottom of the desulfurization tower; the circulation tank is divided into two layers...

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Abstract

The invention discloses a soot wet desulfurization craft. The water absorbent mixed liquid bursts below from cascade device on desulfurization tower, the soot goes into desulfurization tower and contacts with water absorbent conversely in multiplayer meshwork. The sulfur dioxide diverts to liquid. The air goes to the super stratum of water absorbent in the circular pool (3) to make absorbed sulfur dioxide form gesso. The water absorbent can separate the bigger gesso and assure the concentration of water absorbent and absorb ability to sulfur dioxide. The present invention has high efficiency of desulfurization, increases running stability of the system and decreases the engineer cost. The equipment cannot jam easily and fit for industry.

Description

technical field [0001] The invention relates to a flue gas desulfurization process, in particular to a flue gas wet desulfurization process. Background technique [0002] In the wet desulfurization process, it is adopted to combine the energy and SO 2 chemically react with SO 2 The mixture of absorbents with a matching amount is in contact with the flue gas, so that most of the harmful substances in the flue gas, such as SO 2 , smoke, HCl, HF, etc. are transferred to the liquid phase, and then separated from the liquid phase for use or discarded. At present, the common ones are: limestone (lime)-gypsum process with limestone (lime) as absorbent; magnesium desulfurization process with MgO as absorbent, etc. The central part of these processes is the desulfurization absorption tower, and the basic ones seen at present include: spray tower absorption method, liquid column tower absorption method, and pneumatic desulfurization tower absorption method. In the spray tower abso...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/78
Inventor 姚胜余
Owner 姚胜余
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