Agitating – By movement of mixing chamber relative to stationary support – Mixing chamber rotatable only
Patent
1998-01-05
1999-08-17
Cooley, Charles E.
Agitating
By movement of mixing chamber relative to stationary support
Mixing chamber rotatable only
366219, B01F 908
Patent
active
059383305
ABSTRACT:
A study was done to compare the performance of a conventional V-blender to a V-blender that incorporates perturbations of the particle flow by rocking the mixing vessel during its normal rotation. Mixing was investigated using glass beads with sizes from 66.mu. to 600.mu. in vessels of approximately one liter volume. Mixture uniformity was assessed qualitatively, using two different methods. One method involved a transparent mixing vessel where it was possible to see particle flow patterns and assess the state of the mixture at its surface during the entire experiment. The second method involved disposable aluminum mixing vessels, where the mixture was solidified by infiltrating the mixture with a binder. By slicing the solidified structure, it was possible to assess the entire state of the mixture including its interior structure after the completion of each experiment. Mixture uniformity was also assessed quantitatively using image analysis of the slices. For both particle sizes, the extent of mixing was greatly enhanced using the rocking V-blender compared to the conventional V-blender.
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Brone Dean
Connor Kevin
Muzzio Fernando J.
Robinson Priscilla A.
Wightman Carolyn
Camara Valerie J.
Cooley Charles E.
Daniel Mark R.
Merck & Co. , Inc.
Rutgers The State University of New Jersey
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