发明名称 |
Feeding comminuted fibrous material using high pressure screw and centrifugal pumps |
摘要 |
A system and method for feeding comminuted cellulosic fibrous material such as wood chips to the top of a treatment vessel such as a continuous digester provide enhanced simplicity, operability, and maintainability by eliminating the high pressure transfer device conventionally used in the prior art. Instead of a high pressure transfer device the steamed and slurried chips are pressurized using a single vane slurry pump in series with a centrifugal slurry pump both of which are located at least thirty feet below the top of the treatment vessel and for pressurizing the slurry to a pressure of at least about 10 bar gauge.
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申请公布号 |
US2003173047(A1) |
申请公布日期 |
2003.09.18 |
申请号 |
US20030354179 |
申请日期 |
2003.01.30 |
申请人 |
ANDRITZ, INC. |
发明人 |
STROMBERG C. BERTIL;LEAVITT AARON T.;PROUGH J. ROBERT |
分类号 |
D21C1/10;D21C7/06;(IPC1-7):D21C3/26;D21C7/08 |
主分类号 |
D21C1/10 |
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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