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Industrial flue gas desulfurization/denitrification/dedusting integrated technique and device

A technology for desulfurization and denitrification and industrial flue gas, which is applied to chemical instruments and methods, separation methods, and separation of dispersed particles. The effect of equipment corrosion

Inactive Publication Date: 2015-08-12
CHINA CITY ENVIRONMENT PROTECTION ENGINEERING LIMITED COMPANY
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Problems solved by technology

[0006] The purpose of the present invention is to provide an integrated process method for industrial flue gas desulfurization, denitrification and dust removal, which aims to solve the problem of low efficiency of the existing flue gas desulfurization and denitrification process

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  • Industrial flue gas desulfurization/denitrification/dedusting integrated technique and device

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Embodiment Construction

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0020] See figure 1 The embodiment of the present invention provides an integrated process method for industrial flue gas desulfurization, denitrification and dust removal. The spray tower 1 is mainly used to remove nitrogen and sulfur in the flue gas by spraying. The spray tower 1 can be It is sequentially divided into at least three spray spaces 11 in the vertical direction, which in turn includes a lower spray space 11, a middle spray...

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Abstract

The invention relates to air pollution control, and provides an industrial flue gas desulfurization / denitrification / dedusting integrated technique. Ozone and ammonia water are adopted to form the technique composed of at least three circulating spray stages in the spray tower, thereby synchronously removing nitrogen and sulfur compounds in the flue gas. The invention also provides an industrial flue gas desulfurization / denitrification / dedusting integrated device which is applied to the technique. In the technique, the ozone with strong oxidizing property is utilized to convert nitrogen monoxide in the flue gas into nitrogen dioxide, and the spray tower is divided into at least three stages to perform the circulating spray by using the ammonia water. The whole technical process has very high utilization ratio for ammonia water, and can synchronously implement desulfurization and denitrification at higher efficiency. The flue gas carries the solution with very low concentration, can not generate the phenomenon of white smoke, and can completely satisfy the national discharge standard. The device applied to the technique has the advantages of simpler structure, smaller occupied area and lower investment cost.

Description

Technical field [0001] The invention relates to the field of air pollution control, in particular to an integrated process method and device for industrial flue gas desulfurization, denitration and dust removal. Background technique [0002] Industrial flue gas usually contains a variety of pollutants, such as sulfur dioxide, nitrogen oxides, dust and heavy metals attached to the dust, dioxins and other substances. The moisture in the flue gas will also carry some soluble inorganic salts. The existing flue gas treatment system mainly deals with a single pollutant. For such complex flue gas characteristics, the flue gas treatment system is also very complicated, and it is difficult to respond to the shortcomings of load changes in time. [0003] For the removal of sulfur dioxide, the limestone-gypsum method or the ammonia-sulfur ammonium method is commonly used in engineering, but these two systems are difficult to deal with nitrogen oxides, and there is a serious phenomenon that th...

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Application Information

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IPC IPC(8): B01D53/78B01D53/76B01D53/60
Inventor 罗海兵李啸夏小群张兵王红飞吴启任陶玲潘春锋柯广
Owner CHINA CITY ENVIRONMENT PROTECTION ENGINEERING LIMITED COMPANY
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