Patent ID: 7264394
Filing Date: 2007-09-04
Classification: B01F

Abstract:
1. A static mixing device for mixing matter flowing therethrough comprising: a tube having a first and a second tube section; each of said first and second tube sections having a substantially square cross section defining a plurality of corners; said first tube section being spirally twisted in a first direction with said plurality of corners of said substantially square cross section forming a plurality of helixes for causing the matter flowing through said first tube section to rotate in a first rotational direction; said second tube section being spirally twisted in a second direction opposite to said first direction of said first tube section with said plurality of corners of said substantially square cross section forming a plurality of helixes for causing the matter flowing through said second tube section to rotate in a second rotational direction; and a coupling for coupling said first tube section to said second tube section for causing the matter flowing through said first tube section to rotate in said first rotational direction and for causing the matter flowing through said second tube section to change direction to rotate in said second rotational direction.