Method of Fragmenting and/or Weakening of Material by Means of High Voltage Discharges

摘要

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.

主权项

1. Method of fragmenting and/or weakening of material (1), in particular of rock material (1) or ore, by means of high voltage discharges, comprising the steps:
a) providing a process area (2) having a high voltage discharge gap formed between two electrodes (3, 4) which face each other at a distance; b) feeding the material (1) that is to be fragmented or weakened, respectively, and a process liquid (5) into the process area (2) in such a way that in the intended fragmentation or weakening operation, respectively, the area between the two electrodes is filled with material (1) that is to be fragmented or weakened, respectively, and process liquid (5); and c) fragmenting or weakening, respectively, the material (1) in the process area (2) by generating high voltage discharges between the two electrodes (3, 4),wherein during the fragmenting or weakening, respectively, of the material (1), process liquid (5) is discharged from the process area (2) and process liquid (5) is fed into the process area (2),and wherein the fed process liquid (5) has a lower electrical conductivity than the discharged process liquid (5).