Method of shock-reduced pneumatic plug conveyance of bulk materials and device for implementing the method
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United States of America Patent
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Aug 11, 1998
Grant Date -
N/A
app pub date -
Sep 16, 1996
filing date -
Feb 2, 1995
priority date (Note) -
Expired
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Abstract
Methods and devices for the conveyance of bulk materials by a compressible conveying medium and in the form of discrete plugs from bulk materials in pipes are known. A disadvantage is the high-energy and abrupt expansion of the volume of the conveying medium between the plug being discharged and the one following it at the end of the pipe. This disadvantage may be avoided in that the amount (2') of compressed conveying medium existing in each case between plugs (1') in sequence in the downstream end portion (12b) of the pipe as compared to the amount (2) of compressed conveying medium (2) existing between plugs (1) upstream (at 12a) of the end portion (12b) of the pipe is reduced. This is particularly achieved by converting the long plugs (1) into plugs of reduced length (1'), following each other in reduced spacing.
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