Centrifugal tumbling granulating-coating apparatus
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United States of America Patent
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-
Dec 10, 1996
Grant Date -
N/A
app pub date -
Feb 21, 1995
filing date -
Feb 25, 1994
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A centrifugal tumbling granulating-coating apparatus has a rotary disk rotated in the horizontal direction and a stator provided at an outer peripheral position of the rotary disk at a predetermined internal from the rotary disk. The rotary disk is formed therein with a peripheral edge portion having a circularly arcuate-shaped vertical cross-section erected from a flat bottom surface portion and curved upwardly. In the rotary disk, a height (H) from the bottom surface portion to an outer peripheral end is set at a value within a range of 0.30R.ltoreq.H.ltoreq.R to a radius of curvature (R) of the peripheral edge portion, a width (W) of the peripheral edge portion is set at a value within a range of 0.07D.ltoreq.W.ltoreq.0.25D to a diameter (D) of the rotary disk and the radius of curvature (R) of the peripheral edge portion is set at a value within a range of 0.10D.ltoreq.R.ltoreq.0.25D to the diameter (D). A powder contact portion of the stator is formed substantially vertically. By use of this centrifugal tumbling granulating-coating apparatus, a powder or granular material in more quantities per batch can be granulated and coated.
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