Abstract: According to a method for fragmenting of pourable material by high-voltage discharges, a material flow of the material, immersed in a process liquid, is guided past an electrode assembly by a conveying device carrying the material flow. By charging the electrode assembly with high-voltage pulses, high-voltage punctures through the material of the material flow are produced. The electrodes of the electrode assembly are immersed in the process liquid from above, and those of these electrodes between which the high-voltage punctures are produced face each other with an electrode spacing transverse to the material flow direction.

Abstract: A method for fragmenting of pourable material by means of high-voltage discharges is disclosed. Thereby, a material flow of the material, immersed in a process liquid, is guided past an electrode assembly by means of a conveying device carrying the material flow, while by charging of the electrode assembly with high-voltage pulses, high-voltage punctures through the material of the material flow are produced. The electrodes of the electrode assembly are thereby immersed in the process liquid from above, and those of these electrodes between which the high-voltage punctures are produced face each other with an electrode spacing transversely to the material guiding-past direction.

Abstract: 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.

Abstract: A method for the fragmentation and/or weakening of a piece of material by means of high-voltage discharges includes immersing the piece of material in a process fluid, guiding the material past a matrix formed by a number of high-voltage electrodes, which are supplied with high-voltage pulses. As such, high-voltage disruptive discharges occur through the piece of material whilst same is guided past the matrix. The high-voltage electrodes can be moved independently from one another along movement axes running substantially perpendicular to the passing direction of the work piece. And the electrodes are moved whilst the piece of material is guided past and whilst the high-voltage disruptive discharges are generated, in such a way that each follows the contour of the piece of material at a determined distance and are thereby immersed in the process fluid.

Abstract: A method of fragmenting a material by means of high voltage discharges includes feeding the material through a process zone arranged between two electrodes flooded with a process liquid. High voltage discharges are generated between the electrodes and process liquid is fed into and discharged from the process zone. In that state, a degree of turbidity of the process liquid discharged is determined and compared with a reference value. In case a deviation from the reference value is detected, one or more parameters of the generation of high voltage discharges and/or of the feeding of the material through the process zone are changed such that, when after the changing of the parameters the determination of the degree of turbidity and the comparing with the reference value is repeated, the deviation which is detected is reduced or no deviation is detected.

Abstract: The invention concerns a method of fragmenting and/or weakening of material by means of 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 material and process liquid. Between the two electrodes high voltage discharges are generated for fragmenting or weakening, respectively, of the material. According to the invention, 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.