METHOD OF LOADING OF UNDERGROUND WORKINGS Russian patent published in 1995 - IPC

FIELD: mining industry. SUBSTANCE: prior to feeding the oxidizer to working 1, crystallizers 3 are installed at a distance equal to 0.4 to 1.0 of the height of working 1 from one another so as to intensify the process of crystallization of oxidizer from its solution. Oxidizer is preliminarily dissolved in water with formation of supersaturated solution, in which with obtained solution, in which solid-to-liquid ratio attains 1:1.3. Working 1 is filled with obtained solution, and water evaporation on crystallizers 3 and on the walls of working 1 is accomplished by air stream 4, with settling and crystallization of oxidizer. Then ignitable component of explosive mixture is placed in working 1, fuze-detonating cord is installed, connecting line of detonating cord is laid, and tamping is accomplished. EFFECT: reduced labour content is loading of remote difficult-to get at workings, enhanced safety and improved hygienic conditions of loading. 2 cl, 6 dwg