Deep-chamber, stepped, fluid-energy mill

Details Deep-chamber, stepped, fluid-energy mill Deep-chamber, stepped, fluid-energy mill

2008-07-15

2008-07-15

Miller, Bena (Department: 3725)

Solid material comminution or disintegration

Processes

By utilizing kinetic energy of projected or suspended material

C241S039000

Reexamination Certificate

active

07398934

ABSTRACT:
The embodiments of the present invention relate to improvements in the fluid-energy mills. Particularly, the fluid-energy mill of the present invention includes a deeper chamber for grinding of particulate material, wherein the discontinuities defining the stepped chamber are located at a distance of about 0.59 to 0.62 R, and preferably 0.61 R, from the axis of the chamber, wherein R is the radius of the grinding chamber measured from the axis to the inside wall of the chamber. In another improvement, providing interlocking joints in the liner discharge tube and extending the liner into the port for the feed tube, as well as providing a packing gland for the feed tube mitigate the problem of wear of the ceramic liner inside the fluid-energy mill.

REFERENCES:
patent: 2032827 (1936-03-01), Andrews
patent: 2191095 (1940-02-01), Hobbie
patent: 2690880 (1954-10-01), Chatelain
patent: 2763437 (1956-09-01), Marchant
patent: 3005594 (1961-10-01), Vogel et al.
patent: 3559895 (1971-02-01), Fay
patent: 3726484 (1973-04-01), Schurr
patent: 4056233 (1977-11-01), Fay

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