INHIBITED EMULSIONS FOR USE IN BLASTING OPERATIONS IN REACTIVE SOIL OR AT HIGH TEMPERATURES Russian patent published in 2021 - IPC F42D1/10 F42D3/04 C06B23/00 C06B47/00 

FIELD: mining industry.

SUBSTANCE: invention relates to methods for delivery of inhibited emulsions and to a system associated with them. The method for delivery of the inhibited emulsion to the borehole includes the supply of an emulsion containing a dispersed oxidizer phase and a continuous fuel phase, the supply of a separate inhibitor solution containing water, an inhibitor and a crystallization point modifier, mixing the emulsion with an inhibitor solution to form an inhibited emulsion and pumping the inhibited emulsion into the borehole. The method for blasting in a reactive soil, high-temperature soil or both types of soil includes the supply of an emulsion containing a dispersed phase of the oxidizer and a continuous phase of fuel, the supply of an inhibitor solution containing water and a crystallization point modifier, mixing of an inhibitor solution at a given concentration, flow rate or both properties together with an emulsion to form an inhibited emulsion with a sufficient amount of an inhibitor solution to achieve the required inhibition of the given reactive soil, high-temperature soil or both soils using an inhibited emulsion and pumping the inhibited emulsion into a hole in a given reactive soil, high-temperature soil or both soils. The explosives delivery system contains an emulsion tank capable of storing or forming an emulsion containing a dispersed oxidizer phase and a continuous fuel phase, an inhibitor solution tank capable of storing a separate inhibitor solution containing water, an inhibitor and a crystallization point modifier, an inhibitor solution supercharger functionally connected to an emulsion tank and an inhibitor solution tank, and an inhibitor solution supercharger capable of introducing a solution into the emulsion inhibitor, the loading pipe functionally connected to the inhibitor solution supercharger, while the loading pipe is made with the possibility of pumping the emulsion and the inhibitor solution, and the loading pipe is also made with the possibility of inserting into the borehole and mixer, made with the possibility of mixing the emulsion and the inhibitor solution to form an inhibited emulsion.

EFFECT: increasing the viscosity of the homogenized activated product and reducing the migration of the product into cracks and voids in the material surrounding the hole, in the possibility of changing the flow rate to maintain the required density of the activated product.

46 cl, 1 tbl, 3 dwg