Selfrag Ag

Forschungszentrum Karlsruhe Gmbh

The European Atomic Energy Community (Euratom), Represented by the European Commission

The European Atomic Energy Community, Represented by the European Commission

Peter Hoppe

Josef Singer

Reinhard Müller-Siebert

Harald Giese

Peter Stemmermann

Uwe Schweike

Christoph Anliker

Fabrice Monti Di Sopra

Alexander Weh

Heiko Feitkenhauer

Klaus Leber

Helena Ahlqvist Jeanneret

Michael A Fütterer

Bluhm Hansjoachim

Wolfram Edinger

Hansjoachim Bluhm

Michael A Fuetterer

A method of fragmenting and/or weakening of material is provided that utilizes high voltage discharges. The material is together with a process liquid introduced into a process area, in which two electrodes face each other at a distance, and is arranged therein in such a manner that the area between the two electrodes is filled with the material and process liquid. Between the two electrodes high voltage discharges are generated for fragmenting or weakening of the material. During the fragmenting or weakening, respectively, of the material, process liquid is discharged from the process area and process liquid is fed into the process area. The process liquid which is fed has a lower electrical conductivity than the process liquid which is discharged.

Method of fragmenting and/or weakening of material by means of high voltage discharges

In a head-end process for the reprocessing of reactor core material with embedded fuel particles, reactor core material is arranged in a reactor containing a fluid. The reactor comprises a voltage discharge installation in the fluid. Voltage discharges are applied through the fluid for fragmenting the fuel particles into fragmentation products and the fragmentation products are segregated.

Head-end process for the reprocessing of reactor core material

The invention relates to a sample holder having an insulation body () and a first electrode () and a second electrode (), wherein the first electrode () and the second electrode () project into the sample container (), the first electrode () and the second electrode () are connected to each other via the insulation body (), the sample container () is filled with a dielectric liquid (), and the first electrode () is assigned to a gas collection chamber (). The invention further relates to an assembly for the electrodynamic fragmentation of samples (), having such a sample container (), a process container (), and means () for connecting the first electrode () and the second electrode () of the sample container () to a high voltage source (), wherein the process container () is filled with a dielectric liquid (), and the sample container () is arranged inside the process container () in the dielectric liquid ().

Sample holder and assembly for the electrodynamic fragmentation of samples

In a process reactor and a method for the electro-dynamic fragmentation of lumpy mineral materials by pulsed high voltage discharges, including a reaction chamber with a funnel-like bottom having a central outlet, an axially movable high-voltage electrode extending from the top into the reaction chamber and having a front end disposed opposite the central outlet where another electrode which is at an electric reference potential is disposed, the outlet converges into a tailback tube below which a transport unit for the controlled removal of the processed fragmented material sinking down through the tailback tube is disposed, a material supply arrangement extends to an opening in the wall of the reaction chamber and a material flow blocking structure is disposed in the reaction in front of the material inlet opening for controlling the material admission to, and the fill level in, the reaction chamber.

Process reactor and method for the electrodynamic fragmentation

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Stutensee, Germany

Peter Hoppe