Method and apparatus for adding and mixing second cohesive powde

Details Method and apparatus for adding and mixing second cohesive powde Method and apparatus for adding and mixing second cohesive powde

1982-02-08

1983-09-27

Rosenbaum, Mark

Solid material comminution or disintegration

Processes

By utilizing kinetic energy of projected or suspended material

241 18, 241101B, 241275, 366101, B02C 1912

Patent

active

044064101

ABSTRACT:
A method and apparatus for the introduction of second cohesive powders into an improved fluidized bed blender containing UO.sub.2 powder, and for blending such second cohesive powders with the UO.sub.2 powder in the fluidized bed blender. The apparatus comprises an eductor, an improved pressurized vortec mill, a pneumatic conveying system that operates in turbulent flow, and an improved fluidized bed blender. The method and apparatus provide for injection and uniform dispersion of a second cohesive powdered ingredient or ingredients having hydrophobic, hydrophilic or hygroscopic properties in the fluid bed blender adjacent the bottom of the fluidized bed therein during the blending operation, thereby minimizing entrainment of the second powder mixture and providing a homogeneous blend of powders.

REFERENCES:
patent: 2586818 (1952-02-01), Harms
patent: 3940908 (1976-03-01), Dazen et al.
patent: 4138067 (1979-02-01), Planiol
patent: 4168914 (1979-09-01), Larson et al.
patent: 4172667 (1979-10-01), Zenz et al.

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