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Flue gas ammonia desulfurization and denitrification ultralow discharge integrated tower

A desulfurization and denitrification, ammonia desulfurization technology, applied in the field of flue gas ammonia desulfurization and denitrification ultra-low emission integrated tower, can solve the problems of no use value, waste of resources, etc., solve the problem of secondary pollution, avoid waste, and reduce operating costs Effect

Pending Publication Date: 2019-05-31
宋铭宇
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Problems solved by technology

[0003] At present, many problems have been exposed in the operation of boiler flue gas dedusting, desulfurization and denitrification equipment. One of the more prominent problems is that the product of flue gas after treatment is nitrogen gas, which has no subsequent use value. This has caused resource shortage to a certain extent. waste

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[0019] The following embodiments will describe the present invention in detail with reference to the drawings. In the drawings or descriptions, similar or identical parts use the same symbols, and in practical applications, the shape, thickness or height of each component can be enlarged or reduced. The various embodiments listed in the present invention are only used to illustrate the present invention, and are not intended to limit the scope of the present invention. Any obvious modifications or changes made to the present invention do not depart from the spirit and scope of the present invention.

[0020] see Figure 1~2 , in an embodiment of the present invention, a flue gas ammonia-based desulfurization and denitrification ultra-low emission integrated tower includes a tower body 7 for converting NO (nitrogen monoxide) into NO 2 (nitrogen dioxide) nitrogen dioxide conversion device and a desulfurization and denitrification device for flue gas treatment, the top of the to...

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Abstract

The invention discloses a flue gas ammonia desulfurization and denitrification ultralow discharge integrated tower, and relates to the technical field of boilers. The problem that a final product formed by an existing flue gas treatment device cannot be recycled is mainly solved. The integrated tower comprises a tower body, a nitrogen dioxide conversion device and a desulfurization and denitrification device. A flue outlet is formed in the top of the tower body, and the gas outlet end of the nitrogen dioxide conversion device is connected with the gas inlet end of the tower body; the desulfurization and denitrification device comprises a primary desulfurization and denitrification device and a secondary desulfurization and denitrification device; the primary desulfurization and denitrification device comprises a primary desulfurization and denitrification water tank, a primary desulfurization and denitrification nozzle installed inside the tower body, a primary circulating pump for supplying liquid to the primary desulfurization and denitrification nozzle, an oxidation fan for blowing oxygen into the primary desulfurization and denitrification water tank and a urea hydrolysis tankfor performing hydrolysis on urea; the primary desulfurization and denitrification water tank is connected with a thickener through a pipeline, and the thickener is connected with a centrifugal machine through a pipeline.

Description

technical field [0001] The invention relates to the technical field of boilers, in particular to an ultra-low emission integrated tower for flue gas ammonia desulfurization and denitrification. Background technique [0002] The boiler will produce a lot of flue gas during the working process. In order to avoid the impact of the flue gas on the environment, the factory will be equipped with a flue gas treatment device to purify the flue gas. At present, the most common purification method is the flue gas desulfurization method, which is the process of removing sulfur and compounds in the flue gas, mainly referring to SO and SO in the flue gas. 2 . to meet environmental requirements. Post-combustion desulfurization, also known as flue gas desulfurization (FGD for short), in FGD technology, can be divided into the following five methods according to the type of desulfurization agent: CaCO 3 (limestone) based calcium method, MgO based magnesium method, Na 2 SO 3 Sodium-base...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/86B01D53/56B01D53/78B01D53/50
Inventor 宋铭宇单国美
Owner 宋铭宇
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