发明授权
- 专利标题： Process and apparatus for continuously washing aqueous fibrous suspensions and controlling the volume of wash liquid
- 专利标题（中）： 用于连续洗涤水性纤维悬浮液并控制洗涤液体积的方法和设备
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申请号： US46742申请日： 1979-06-08
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公开(公告)号： US4273612A公开(公告)日： 1981-06-16
- 发明人: Per A. R. Hillstrom , Lars G. Norehall
- 申请人： Per A. R. Hillstrom , Lars G. Norehall
- 申请人地址： SEX Ornskoldsvik
- 专利权人： Mo och Domsjo Aktiebolag
- 当前专利权人： Mo och Domsjo Aktiebolag
- 当前专利权人地址： SEX Ornskoldsvik
- 优先权： SEX7604430 19760414
- 主分类号： D21C9/02
- IPC分类号： D21C9/02
摘要：
A process is provided for continuously washing fibrous suspensions in aqueous suspending liquors containing dissolved impurities to remove such impurities by exchanging aqueous suspending liquid substantially free from such impurities for the aqueous suspending liquor, which comprises washing fibrous material of the suspension in aqueous suspending liquid substantially free from dissolved impurities; and forming a washed fibrous suspension in such liquid; withdrawing aqueous suspending liquor containing dissolved impurities; diluting the washed fibrous suspension by adding aqueous suspending liquid substantially free from dissolved impurities; measuring the volume amount of such diluting aqueous suspending liquid added; measuring the volume amount of diluted washed fibrous suspension; and then adjusting the volume amount of wash liquid added to maintain substantially constant the difference between the amount of wash liquid added and the liquid content of the undiluted washed fibrous suspension.
公开/授权文献
- USD382688S Suit jacket lapel 公开/授权日：1997-08-26
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