Process for extracting ore in a shaft has opposite side walls, and a method to extract ore deposit came from mineralized

摘要

"The process to extract ore of a shaft has opposite side walls, and a method to extract ore deposit was mineralized.It is described a method without explosion to extract ore from a deposit of came mineralized (12) in which the shaft is extracted so that the ore from the walls of the rock (16), Delhi.You to maintain the shaft (12) are broken into fragments. The fragments of ore are recovered by suction and subsequ00b3entemente processed to recover the precious mineral.