Underwater pelletizer with separator
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Jul 15, 2003
Grant Date -
N/A
app pub date -
Mar 22, 2000
filing date -
Mar 23, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An underwater pelletizer for granulating thermoplastics, includes an extruder having a die plate with holes for extruding thermoplastics in the form of single strands which are cut by a rotating cutting tool in short pieces in a cutting plane in parallel relation to an exit plane of the die plate, thereby forming a granulated product. The exit plane of the die plate and the cutting tool are positioned in a chamber which is filled with cooling water streaming through the chamber. The chamber has a cooling water inlet, which is arranged above the pivot axis of the cutting tool, and an outlet, arranged beneath the pivot axis of the cutting tool, for discharge of a mixture of water and granulated product, whereby the outlet is configured as free discharge opening which opens into a separator, positioned immediately underneath the outlet, for separating the granulated product from the cooling water.
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