Desulfurization reaction tower and flue gas desulfurization device

A desulfurization device and reaction tower technology, which is applied in the field of flue gas purification, can solve the problems of low desulfurization efficiency, large pressure loss, and high cost, and achieve the effect of reducing system pressure loss and improving desulfurization efficiency

Pending Publication Date: 2020-07-17
CPI YUANDA ENVIRONMENTAL PROTECTION ENG
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Problems solved by technology

[0003] The technical problem to be solved by the embodiments of the present invention is to provide a desulfurization reaction tower and a flue gas desulfurization device to solve the problems of high cost, large pressure loss or low desulfurization efficiency in the current desulfurization technology used to treat electrolytic flue gas in the aluminum industry The problem

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  • Desulfurization reaction tower and flue gas desulfurization device

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Embodiment Construction

[0035] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments. In the following description, specific details, such as specific configurations and components, are provided only to assist in a comprehensive understanding of the embodiments of the present invention. Accordingly, those of ordinary skill in the art should recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, descriptions of well-known functions and constructions are omitted for clarity and conciseness.

[0036] It should be understood that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic related to the embodiment is included in at least one embodiment of t...

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Abstract

The embodiment of the invention provides a desulfurization reaction tower and a flue gas desulfurization device. The desulfurization reaction tower comprises a flue gas inlet, a flue gas outlet and atower body arranged between the flue gas inlet and the flue gas outlet, wherein the tower body is sequentially provided with a material spraying area, a mixing area and a reaction area along a first direction, and the first direction is a direction from a flue gas inlet to a flue gas outlet; the material spraying area is provided with an absorbent spraying mechanism and a first humidifying water spraying mechanism; and a second humidifying water spraying mechanism is arranged in the reaction area. According to the technical scheme provided by the invention, the absorbent spraying mechanism andthe at least two humidifying water spraying mechanisms are arranged in sections, the sulfur dioxide in the flue gas is gradually and fully subjected to desulfurization reaction with the absorbent, the desulfurization efficiency is favorably improved, the concentration of pollutants in the flue gas is gradually reduced in the gradual reaction process, and the pressure loss of the system is favorably reduced by controlling the gas-solid content of different regions.

Description

technical field [0001] The invention relates to the field of flue gas purification, in particular to a desulfurization reaction tower and a flue gas desulfurization device. Background technique [0002] The sulfur dioxide produced by electrolysis flue gas in the aluminum industry has the characteristics of low concentration and low flue gas temperature. The use of traditional limestone wet desulfurization technology or circulating fluidized bed semi-dry desulfurization technology has problems of high investment and operation costs, and the cycle Fluidized bed technology also has engineering problems such as large pressure loss and easy bed collapse, which affect the actual engineering application. However, the conventional bedless semi-dry technology has the problems of poor gas-solid mass transfer in the tower and low desulfurization efficiency. Therefore, there is an urgent need for an advanced process technology that can meet the ultra-low emission requirements, has low ...

Claims

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Application Information

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IPC IPC(8): B01D53/83B01D53/50
CPCB01D53/501B01D53/83B01D2251/404B01D53/50B01D53/78
Inventor 吴其荣喻江涛聂华王刚刘宇袁亮熊志成甘霖周川王进黎方潜周川雄成丹杨梅
Owner CPI YUANDA ENVIRONMENTAL PROTECTION ENG
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