Patent ID: 8740449
Filing Date: 2014-06-03
Classification: B01F,B01J

Abstract:
1. A static mixing device comprising a fluid mixing chamber extending from a main flow inlet to a main flow outlet; a first stream divider in the fluid mixing chamber downstream of the inlet having plural first channels for dividing flow from main flow inlet into multiple first streams that are separately directed outwardly away from one another to a first peripheral plenum at an outer periphery of the fluid mixing chamber for recombining of the multiple first streams in the first outer peripheral plenum; a second stream divider in the fluid mixing chamber downstream of the first peripheral plenum having plural second channels for dividing the recombined flow into multiple second streams that are separately directed inwardly toward one another along respective spiral paths to a first inner plenum for recombining of the multiple second streams, whereby flow is rotated via the second streams back toward one another for recombining in the first inner plenum; a third stream divider in the fluid mixing chamber downstream of the inner plenum having plural third channels for dividing flow from the inner plenum into multiple third streams that are separately directed outwardly away from one another to a second peripheral plenum at the outer periphery of the fluid flow passage for recombining of the multiple third streams in the second outer peripheral plenum; and a fourth stream divider in the fluid mixing chamber downstream of the second peripheral plenum having plural fourth channels for dividing the recombined flow in multiple fourth streams that are separately directed inwardly toward one another along respective paths that have respective fourth stream outlets opening to a second inner plenum and oriented relative to one another such that opposing fourth flow streams impinge directly into each other in the second inner plenum before flow of the recombined fourth streams toward the outlet; wherein the static mixing device has a longitudinal axis; and wherein the first flow channels, second flow channels, third flow channels and fourth flow channels are formed by respective grooves formed in respective axially facing side surfaces of respective plates stacked longitudinally in the fluid mixing chamber between the main fluid inlet and outlet.