METHOD FOR MANUFACTURE AND MECHANIZED DEEP-HOLE CHARGING WITH EMULTION EXPLOSIVE MIXTURE Russian patent published in 2003 - IPC

FIELD: conducting of operations by the open method, applicable in the mining industry. SUBSTANCE: emulsion and granular explosives are separately delivered to the charged unit by mixing-charging machines, and in an extensible transverse conveyer of the mixing-charging machine of granular explosive, type МЗ-3А,МЗ-3Б, the granular and emulsion explosives are mixed, the deep-hole charge is formed in the process of delivery of the ready-made emulsion explosive mixture from the extensible transverse conveyer to the hole. Depending on the relationship of the emulsion and granular explosives a deep-hole charge of the permanent or variable density is formed in the height of the hole. EFFECT: enhanced strength of the deep-hole charge, optimized crushing of the rock mass, reduced cost of drilling and blasting operations, use of existing mixing- charging machines. 2 cl