Device and method for detecting wear of a separating element
AssigneeBHS-Sonthofen GmbH
InventorsBernhard Kienle, Frieder Hassler, Detlef Steidl, Wolfgang Süss
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Abstract
The present invention relates to a rotary pressure filter comprising a filter drum, a housing, and at least one separating element which divides a process chamber in a gas-tight manner into a plurality of process portions. A sensor is arranged on the side of at least one separating element that faces the housing. The sensor comprises a coil and a rod which is arranged inside the coil. The rod is designed to be displaced in the coil on the basis of a change in the distance of the separating element from the sensor. The invention further relates to a method for detecting wear of a separating element of a rotary pressure filter.
Claims20
A rotary pressure filter comprising:
- a filter drum designed to filter a suspension;
- a housing which surrounds the filter drum and in which the filter drum is rotatably mounted, a process chamber being formed between the filter drum and the housing;
- a separating element arranged between the housing and the filter drum such that said separating element divides the process chamber into a plurality of process portions in a gas-tight manner;
- and
- a sensor arranged on a side of the separating element that faces the housing, wherein the sensor comprises an electrically conductive coil and a metal rod arranged inside the electrically conductive coil, wherein the metal rod is configured to be displaced in the electrically conductive coil based on a change in a distance of the separating element from the sensor;
- wherein a resonant circuit is coupled to the electrically conductive coil, the resonant circuit being configured to be detuned when the metal rod is displaced in the electrically conductive coil.
A method for detecting wear of a separating element of a rotary pressure filter, the rotary pressure filter comprising:
- a filter drum designed to filter a suspension;
- a housing which surrounds the filter drum and in which the filter drum is rotatably mounted, a process chamber being formed between the filter drum and the housing;
- the separating element arranged between the housing and the filter drum such that said separating element divides the process chamber into a plurality of process portions in a gas-tight manner;
- and
- a sensor arranged on a side of the separating element that faces the housing, wherein the sensor comprises an electrically conductive coil and a metal rod arranged inside the electrically conductive coil;
- wherein the method comprises displacing the metal rod in the electrically conductive coil based on a change in a distance of the separating element from the sensor, wherein current flows in the electrically conductive coil due to a displacement of the metal rod in the electrically conductive coil.
Dependencies are inferred from the claim text.