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AssigneeAmmann Aufbereitung AG
InventorsDaniel Maurer, Reinhard Muller-Siebert
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The invention relates to working electrode for an electrodynamic fragmenting installation. The working electrode comprises an insulator (1) with a central conductor (2), which axially passes through the insulator (1) and carries at its working end an electrode tip (3) which is formed by an exchangeable changing part (4) and adjoins a stop area (6) of the central conductor (2) with a contact area (5) under axial compressive prestress. The invention makes it possible to provide working electrodes for electrodynamic fragmenting installations in which the electrode tips can be exchanged in a simple manner and which can be operated practically without maintenance over a long period of time even in case of great pressure pulsations.
Working electrode for an electrodynamic fragmenting installation, comprising an insulator (1) with a central conductor (2), at the working end of which there is arranged an electrode tip (3) which is formed by an exchangeable changing part (4).
Working electrode according to one of the preceding claims, wherein the changing part (4) is of one-piece design.
Working electrode according to one of the preceding claims, wherein the changing part (4) in an area adjacent to its contact area (5) at its outer circumference comprises a circumferential, radial bead (14).
Working electrode according to one of the preceding claims, wherein between the changing part (4) and the central conductor (2) there is arranged a gasket (13), in particular an O-Ring (13), to prevent process fluid from entering into an area formed between them, which area serves for fastening the changing part (4) at the central conductor (2).
Working electrode according to one of the preceding claims, wherein the central conductor (2) in the area where it protrudes at the working end side out of the insulator (1) at its outer circumference comprises a circumferential, radial bead (14).
Working electrode according to one of the preceding claims, wherein the central conductor (2) in the area where it protrudes at the working end side out of the insulator (1) comprises an area having a cross-section which is not rotationally symmetrical, in particular comprises two parallel surfaces (12) for the positive interaction with a flat spanner.
Working electrode according to one of the preceding claims, wherein the central conductor (2) at its working end sided face comprises at least two frontal holes (23), for the positive interaction with a face spanner.
Working electrode according to one of the preceding claims, wherein the electrode tip (3) has the shape of a spherical calotte or of a rotation paraboloid.
Dependencies are inferred from the claim text.