FIELD: mining.
SUBSTANCE: hydrocavitation erosion destruction method involves pressure water supply to the inlet of a hydrocavitation device, activation of a hydrocavitation process inside that device by means of a cavitation body contained in it and supply of a cavitating water jet from the device outlet to the surface to be destructed, which is located in water medium. Space before the surface to be destructed us filled with water. A hydrocavitation process is formed, which represents vibration supercavitation with local medium heating, water ionisation and cavitation erosion of the surface to be destructed. In order to increase the power of action on the destructed obstacle, there used are n parallel working hydrocavitation devices structurally connected with a framework and forming together a hydrocavitation erosion destruction complex of natural and artificial obstacles, besides, by means of a single lever of the framework for destruction of especially solid obstacles. Prior to the beginning of operation, there installed into the complex framework with their mechanical fixation is 1 to n hydrocavitation devices that operate jointly as effectively as possible to destruct certain obstacles. Inlets of all of the used hydrocavitation devices are connected to the corresponding pressure water supply sleeves with individual shutoff mechanisms; then, shutoff mechanisms required for operation are opened. Obstacles are concentrated on minimum surface area by means of the single level of the framework for destruction of especially solid obstacles of hydrocavitation devices, and in order to improve performance of the complex operation on the corresponding less solid obstacles by means of the same single lever of the framework of n hydrocavitation devices there deconcentrated are obstacles on maximum surface area.
EFFECT: obtaining maximum power of a cavitation water jet.
6 cl, 6 dwg
