| 摘要 |
FIELD: mining.SUBSTANCE: method includes tunnelling of a complex of stripping, preparatory and cutting underground mines, ore breaking and delivery, mine pressure maintenance, transportation, lifting of ore to a horizon of a ore-collecting hopper. Stopes are mined with the help of chamber systems with subsequent filling of the mined space. Tunnelling of a row of mines and process chambers is carried out outside the ore massif in foot wall rocks. Two separate mobile grinding modules are installed in process chambers, which are connected to each other by systems of transportation of a solid stowing mix components, including broken rock. The first module of coarse grinding is placed in preparatory or cut mines, and the second one - fine grinding directly above the filled space and combined with a module for mixing of the solid stowing mix, at the same time unloading from the module of fine grinding is carried out via a receiving tray and a well into the filled space. Grinding of rocks in the fine grinding module is provided to the content of - 0.074 class not below 32%.EFFECT: invention makes it possible to improve efficiency of mining.2 cl, 1 dwg |
