Andritz Oy

Mikko Pesonen

Simo Karjalainen

Harri Qvintus

Pasi Harkonen

Jarkko Hytönen

An arrangement for measuring the distance between at least one seal bar () and a rotating drum () of a drum displacement washer, including at least one sensor element () positioned inside the rotating drum () and configured to provide a signal indicative of the distance between the outer surface of the rotating drum () and the at least one seal bar (); and a signal transfer element () configured to transfer the signal outside the rotating drum ().

Method and arrangement for washer seal control

A sealing arrangement for detecting thickness (t) of a sealing element () of a seal () wherein the sealing surface () at frontside of the sealing element () is arranged to be in sliding contact with sealed surface (), wherein at least one sensor () measures the thickness of the sealing element () and is mounted to the surrounding component () of the sealed surface (). The sensor () is positioned opposite the sealing element (). The sensor () receives a response from a transverse border of the sealing element () or from an electrically conductive insert () or from an insert () of magnetic material, which insert () is embedded within the sealing element () or is connected to the backside of the sealing element (). The thickness (t) is detected and/or measured along the length of the sealing element ().

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Savonlinna, Finland

Mikko Pesonen