B - Operations – Transporting – 01 – F
Patent
B - Operations, Transporting
01
F
B01F 7/04 (2006.01)
Patent
CA 2210277
A mixer for mixing particulates is provided having a housing including parallel side walls and end walls arranged orthogonally with respect to the side walls, and a cylindrical curved bottom wall blending tangentially into the side walls and meeting the end walls, the bottom wall being curved about a longitudinal axis passing through the end walls. A mixing element has a shaft mounted for rotation about the axis and extends between the end walls. The element also includes a plurality of outer paddles, and a plurality of inner paddles to define a series of mixing zones spaced axially along the shaft. Each of the mixing zones includes at least one of the outer paddles angled relative to the axis to drive particulates in a first axial direction and at least one of the inner paddles angled relative to the axis to drive particulates in the opposite axial direction. As a result at least some of the particulates in a zone move firstly in the axial direction under the influence of the outer paddle and then in the opposite axial direction under the influence of the inner paddle, and the zones combine to effect mixing of the particulates. The mixer can be used in a modular fashion by grouping several mixers essentially in side-by-side relationship in a common housing to increase the volume of the mixer.
Flower Arnold B.
Gowling Lafleur Henderson Llp
LandOfFree
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