Static mixing device for flowable substances
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United States of America Patent
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Aug 19, 2014
Grant Date -
Apr 7, 2011
app pub date -
Aug 12, 2010
filing date -
Aug 12, 2009
priority date (Note) -
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Abstract
A static mixing device has a flow duct (10) with at least one mixing element (12) arranged in the flow duct (10). Each mixing element (12) has a multiplicity of webs (14A, 14B) which are arranged in a crossed fashion and which enclose an angle (α) of greater than 0° with the longitudinal axis (x) of the flow duct (10). The webs (14A, 14B) are of waisted design between adjacent crossing points (16), and in the middle between adjacent crossing points (16) the webs (14A, 14B) have their smallest width (b) and mutually adjacent webs (14A, 14B) have their greatest intermediate spacing (a). Those webs (14A, 14B) which are adjacent to the inner wall of the flow duct (10) have, between face-side abutting edges (22), a recess which corresponds to the waisting of the webs (14A, 14B) so as to form a greatest wall spacing (c) in the middle between the face-side abutting edges (22), with the sum, measured over the diameter of the mixing element (12), of the smallest widths (b) of the webs (14A, 14B) amounting to at least 35% of the diameter of the mixing element (12).
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