Denitration ammonia and air mixing device

Abstract

The invention provides a denitration ammonia and air mixing device. The denitration ammonia and air mixing device comprises a mixer body and an ammonia spraying tube, wherein one side of the mixer body is connected with an air inlet section while the other side of the mixer body is connected with a mixed gas outlet section; the ammonia spraying tube is close to the air inlet section; an outlet section of the ammonia spraying tube is consistent to the axis of the mixer body and is positioned in the center of the mixer body; a plurality of flow guide blades are arranged on the inner wall of the mixer body and are respectively arranged on two sides of the mixer body in a staggered manner; at least one through hole is formed in an edge of one side, which is connected with the inner wall of the mixer body, of each flow guide blade; and a plurality of slender grooves which are distributed uniformly are formed in an edge of the other side, which is not connected with the inner wall of the mixer body, of each flow guide blade. The denitration ammonia and air mixing device has effect of evenly mixing ammonia and air, and is simple in structure and easy to mount, repair and maintain; pressure drop is low; extra energy consumption can be avoided; original intension of national required energy conservation and emission reduction is met, and the promotional value is high.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to the technical field of flue gas denitrification treatment, and in particular to an air mixing device for denitrification ammonia gas. Background technique [0002] Boilers burning fossil fuels (such as coal, oil, natural gas) produce a large amount of flue gas, which contains harmful substances such as nitrogen oxides (NOx), a greenhouse gas that destroys the ozone layer. Direct harm to human health; Participate in the formation of photochemical smog, acid rain, and environmental pollution; In order to reduce the harm caused by NOx to the environment and humans, the state has put forward more and more strict requirements on the NOx emission concentration in the flue gas produced by boilers. In order to achieve a lower concentration of NOx emissions and reduce and eliminate the harm of NOx to humans, before the boiler flue gas is discharged into the atmosphere, it...

AI Technical Summary

Problems solved by technology

[0007] At present, there are many kinds of common ammonia-air mixers, but there are some defects and deficiencies. For example, some ammonia-air mixers have poor medium mixing uniformity; some ammonia-air mixers have a large pressure drop, As a result, additional fan power needs to be consumed to increase power consumption; some have complex structures and cumbersome production, which is not conducive to installation, repair and maintenance

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