Solid material comminution or disintegration – Processes – By utilizing kinetic energy of projected or suspended material
Patent
1980-09-29
1982-04-06
Rosenbaum, Mark
Solid material comminution or disintegration
Processes
By utilizing kinetic energy of projected or suspended material
241 24, 241 40, 241 791, B02C 1912
Patent
active
043231985
ABSTRACT:
This invention is a device for fracturing particles. It is designed especially for use in "hot cells" designed for the handling of radioactive materials. In a typical application, the device is used to fracture a hard silicon-carbide coating present on carbon-matrix microspheres containing nuclear-fuel material, such as uranium or thorium compounds. To promote remote control and facilitate maintenance, the particle breaker is pneumatically operated and contains no moving parts. It includes means for serially entraining the entrained particles on an anvil housed in a leak-tight chamber. The flow rate of the gas is at a value effecting fracture of the particles; preferably, it is at a value fracturing them into product particulates of fluidizable size. The chamber is provided with an outlet passage whose cross-sectional area decreases in the direction away from the chamber. The outlet is connected tangentially to a vertically oriented vortex-flow separator for recovering the product particulates entrained in the gas outflow from the chamber. The invention can be used on a batch or continuous basis to fracture the silicon-carbide coatings on virtually all of the particles fed thereto.
REFERENCES:
patent: 2103453 (1937-12-01), Graemiger
patent: 2768938 (1956-10-01), Martin
patent: 3184169 (1965-05-01), Friedman et al.
Tiegs Sue M.
Turner Lloyd J.
Van Cleve, Jr. John E.
Willey Melvin G.
Besha Richard G.
Hamel Stephen D.
Lewis Fred O.
Rosenbaum Mark
The United States of America as represented by the United States
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