COMPOSITIONS OF EXPLOSIVE MIXTURES AND METHODS FOR PRODUCTION THEREOF Russian patent published in 2016 - IPC C06B31/28 C06B45/32 C06B47/14 

FIELD: blasting operations.

SUBSTANCE: invention relates to industrial explosives and can be used for production of granulated and water-filled explosives at production facilities and at application sites during explosive works in mining and construction industries. Explosive composition contains ammonium nitrate, preliminary mixed with straight entrained water-hydrocarbon emulsion and hydrocarbon fuel. Before mixing with ammonium nitrate entrained emulsion is preliminary obtained by mixing liquid components and additional dispersion using ultrasonic action. When producing water-resistant composition, inverted emulsion based on ammonium nitrate is additionally introduced. Emulsion can also include combustible powdery energy additives, chlorine-containing organic sensitizing agent and other additives. Invention ensures production of highly efficient and safe to use compositions with high completeness of chemical conversions in charges of medium and small diameter, that do not require powerful intermediate detonators, due to more uniform distribution and increased area of contact between fuel and oxidizer.

EFFECT: methods of production allow to efficiently control explosive characteristics of charges in dry, drained, and flooded wells when loading into polyethylene hoses.

28 cl, 7 dwg, 3 tbl