发明名称 |
Process and apparatus for degassing liquids, especially polymer melts and solutions |
摘要 |
A process and apparatus for degassing high-boiling liquids, especially polymer melts and solutions, to remove low-boiling liquids and gases as impurities by feeding the polymer melt or similar high-boiling liquid under expansion into the feed chamber of a gear wheel pump to flow downwardly and only partially fill this feed chamber, preferably so as to form a thin layer or pool of the melt atop the upper crown surfaces of the gear wheels. The impurities are withdrawn separately through a suction outlet and the liquid level of the melt is preset and maintained by suitable regulating apparatus adapted to control the speed of the gear wheels and/or the speed at which melt is delivered into the pump feed chamber.
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申请公布号 |
US4711647(A) |
申请公布日期 |
1987.12.08 |
申请号 |
US19860855094 |
申请日期 |
1986.04.22 |
申请人 |
BARMAG AKTIENGESELLSCHAFT |
发明人 |
GATHMANN, EGON |
分类号 |
B29B7/72;B29B7/84;B29C47/50;B29C47/76;F04C13/00;(IPC1-7):B01D19/00 |
主分类号 |
B29B7/72 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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