Investigations have been carried out into the grindability of high-grade matte in various types of mills. Differences in the character of grinding by means of rods, balls and cilpebs are shown. Recommendations for increasing the productivity of mechanical grinding are given.
Information on torpedoing hydrogeological wells as a method of increasing their flow rate is found in a number of works on hydrogeology and drilling. However, this method of exploring underground waters has not yet received wide application in the practice of hydrogeological research. This is explained by the lack of a developed torpedoing technique for testing hydrogeological wells. The proposed article examines some issues of the technique of torpedoing hydrogeological wells in order to increase their water content.
