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1. 发明授权

US4635470A Apparatus and method for permeability measurement 失效
标题翻译：渗透率测量装置及方法
公开(公告)号：US4635470A
公开(公告)日：1987-01-13
申请号：US694389
申请日：1985-01-07
申请人： Bengt Skallen , Kjell Ljungkvist , Urban Gren
发明人： Bengt Skallen , Kjell Ljungkvist , Urban Gren
IPC分类号： G01N1/14 , G01N1/10 , G01N1/20 , G01N15/08 , G01N11/06
CPC分类号： G01N1/2035 , G01N15/08
摘要： The invention relates to an apparatus and a method for determining the drainability by permeability measurements. The apparatus is provided for taking a sample of a suspension, particularly a fibre suspension, e.g. such as flows in a pipe (2), said apparatus including a sampling piston housing (4) connected to the pipe (2) and accommodating a sampling piston (5) which can be displaced into the pipe (2) and has a through hole for forming a sample chamber (9) for taking out a pulp sample. The housing (4) is in communication with a dilution and mixing chamber (35) including an agitation or mixing device (36), the lower portion of the chamber (35) being closed off by an end member (23) with a screening plate (22). In the method in accordance with the invention there first takes place measurement on the entire pulp sample, subsequent to which the sample is liberated from its fine fraction by a washing process in the mixing chamber (35), measurement on the proportion of fibre in the pulp sample then taking place, for which purpose the permeability of the pulp bed formed against the screening plate (22) is measured during one or more pressure drops, possibly with intermediate slushing with the aid of the mixing device (36) and reformation of the pulp bed.
摘要翻译： PCT No.PCT / SE84 / 00177 Sec。 371日期1985年1月7日第 102（e）日期1985年1月7日PCT提交1984年5月11日PCT公布。第WO84 / 04591号公报日期1984年11月22日。本发明涉及通过磁导率测量来确定排水性的装置和方法。该装置被提供用于取样悬浮液，特别是纤维悬浮液的样品。例如在管道（2）中的流动，所述设备包括连接到管道（2）的采样活塞壳体（4）并且容纳可移位到管道（2）中的采样活塞（5），并且具有通孔用于形成用于取出纸浆样品的样品室（9）。壳体（4）与包括搅拌或混合装置（36）的稀释和混合室（35）连通，腔室（35）的下部由端部构件（23）封闭，其具有筛板（22）。在根据本发明的方法中，首先对整个纸浆样品进行测量，随后通过在混合室（35）中的洗涤过程将样品从其细小馏分中释放出来，测量纤维在然后进行纸浆样品，为此目的，在一个或多个压降期间测量形成在筛板（22）上的纸浆床的渗透性，可能借助于混合装置（36）进行中间冲洗，并改造纸浆床

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