发明名称 |
DIGESTER WASH EXTRACTION BY INDIVIDUAL SCREEN FLOW CONTROL |
摘要 |
A continuous digester comprises a wash zone having a plurality of individual wash screens disposed about an inner wall of the digester for the withdrawal of co-current downflow liquor from the wash zone. A conduit is connected in fluid communication between each of the wash screens and a collector for co-current downflow liquor withdrawn from the wash zone of the digester. A valve is interposed along the length of the conduit leading from each of the wash screens. The valve is operable between open and closed positions in response to a signal received from a temperature sensor associated with the conduit leading from each of the wash screens. The signal represent changes in temperature of a corresponding co-current down flow liquor through a corresponding conduit wherein a corresponding valve permits adjustment of a corresponding flow rate of liquor through said corresponding conduit to a flow rate that is substantially equal to each of the other flow rates of co-current downflow liquor through each of the other conduits.
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申请公布号 |
US2009236059(A1) |
申请公布日期 |
2009.09.24 |
申请号 |
US20090478237 |
申请日期 |
2009.06.04 |
申请人 |
INTERNATIONAL PAPER COMPANY |
发明人 |
LAWRENCE DEAN KENNETH;HILL WAYNE;LUDWIG STANISLAUS LEO;CODE DAVID RICHARD |
分类号 |
D21C9/02;D21C3/24;D21C7/00;D21C7/12;D21C7/14 |
主分类号 |
D21C9/02 |
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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