Longitudinal-vortex-type ammonia-injection mixing arrangement used for SCR denitration system
A mixing device and longitudinal vortex technology, applied in gas treatment, membrane technology, dispersed particle separation, etc., can solve the problem of uneven mixing of ammonia and nitrogen, achieve enhanced mixing effect, stable operation, and improved mixing uniformity
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[0032] The present invention will be further described in detail below in conjunction with specific embodiments, which are for explanation rather than limitation of the present invention.
[0033] The present invention is a longitudinal vortex type ammonia injection mixing device for SCR denitration system, such as figure 1 As shown, the static mixing unit 3, the ammonia injection pipe 5 and the partition plate 6 are included. The static mixing unit 3 is composed of a base plate 2 and a fin 1; the plane of the base plate 2 is parallel to the flue gas flow direction; the angle between the fin 1 and the base plate 2 in the same static mixing unit 3 is 30°~90 °, the angle formed by the fin 1 and the flue gas flow direction is defined as the angle of attack, which is required to be greater than 0° and 0°-60°; a series of ammonia injection holes 4 are arranged on the ammonia injection pipe 5, such as Figure 4 with Image 6 As shown, the ammonia injection hole 4 is composed of several ...
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