B - Operations – Transporting – 01 – F
Patent
B - Operations, Transporting
01
F
B01F 3/08 (2006.01) B01F 7/10 (2006.01) B01F 7/12 (2006.01) B01F 15/00 (2006.01) B02C 17/16 (2006.01) B02C 17/18 (2006.01) B01F 7/00 (2006.01)
Patent
CA 2301390
A colloid mill has a cylindrical processing chamber with an inlet end, a discharge end and a rotor mounted in the chamber between the two ends. The inlets to the inlet end are radial, while the discharge from the discharge end of the mill is tangential. This provides a good mixing of the materials introduced at the inlet before they are subjected to milling by the rotor and minimizes the back pressure on the material being discharged at the discharge end. The rotor assembly in the mill has two rotors spaced axially apart. Beaters project from the rotor assembly into the mixing chamber at the inlets and through the mixing chamber between the two rotors. The rotor assembly is mounted on the rotor shaft to prevent axial migration of the rotor assembly on the shaft. At one end, the shaft is mounted in thrust bearings while at the opposite end it is mounted in a self-aligning spherical bearing that allows axial expansion and contraction of the shaft due to thermal effects. The mill may be made with two rotor assemblies arranged back-to-back, with a centre inlet and discharges at opposite ends.
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