Plastic article or earthenware shaping or treating: apparatus – With apparatus assembly or dismantling means or with idle part – Plural wear or shaping surfaces mounted for alternative use
Patent
1994-07-11
1995-10-31
Nguyen, Khanh P.
Plastic article or earthenware shaping or treating: apparatus
With apparatus assembly or dismantling means or with idle part
Plural wear or shaping surfaces mounted for alternative use
100116, 100121, 100131, 100178, 100907, 425193, 425195, 425197, 425350, 425351, 425236, 425237, B29C 4308, B30B 920, B30B 1122, B30B 1502
Patent
active
054624258
ABSTRACT:
An apparatus for mechanically separating water from coal includes a vibrating hopper, two contra-rotating cylinders, a solid collector, and a fluid collector. The hopper feeds hydrated coal or coal slurry to wells which are arranged along the surface of a first rotating cylinder. A second rotating cylinder has protrusions on its surface which are precisely placed such that when the first and second cylinders are brought in contact and rotated in contra-rotating directions, each of the wells of the first cylinder and a corresponding protrusion of the second cylinder form mating female and male dies. Coal in the female dies is pressed, and the moisture in the coal is squeezed out. The coal remaining in the dies is then delivered to the solid collector via a pusher. The distance between the cylinders may be varied through adjustable cylinder bearings or pillow blocks. Both the male and female dies may be removed and replaced. The dies may be adjustable relative to one another to vary the penetration of the male dies relative to respective female dies. Since water is not compressible, it is force out of the female dies between the engaging male and female dies. Although water is permitted to escape from between the engaging male and female dies, only a nominal amount of coal is permitted to escape. Subsequent to permitting water to escape, pressure between the dies is increased greatly to produce a solid from the coal mixture.
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Horn Donald L.
Kuss Thomas
Litman Richard C.
Nguyen Khanh P.
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