POWDER COMPOUND Russian patent published in 1995 - IPC

FIELD: powder compounds. SUBSTANCE: powder compound contains, mas. ballistite solid propellant of 3-12 mm fractions with moisture content of 1-3 mas. treated with instrument oil in the amount of 0.5-2.0 mas. 20-35; water 13-18; thickening agent 0.5-2.0; structuring additive 0.15-0.100; the balance, ammonium nitrate. Thickening agent is used in form of sodium carboxy-methylcellulose or polyacrylamide, structuring additive is used in form of hexahydrate of chromic sulfate or chrome alum. or ferric sulfate or chrometan. Powder compound is prepared by adding ballistite solid propellant treated with instrument oil to saturated solution of ammonium nitrate and ammonium nitrate into mixing charging machines directly on charged unit. Holes are charged through charging hose with simultaneous introduction of structuring additive, or directly into hole. Components are supplied to mixer, mixed and dispensed to hole simultaneously and continuously. Characteristic of powder compound: critical diameter of detonation 80-100 mm; detonation velocity 5.0-5.2 km/s. EFFECT: higher efficiency. 3 cl, 1 tbl