Procedure and installation for loading boreholes with bulk water-based suspension or watergel type explosives

An installation for loading a bulk water-based suspension or watergel type explosives into a borehole according to a procedure comprising:

• (i) transportation of a non-explosive or low sensitivity water-based matrix suspension to the location for loading, said suspension comprising at least an oxidant salt, a fuel, and a thickener, and (ii) sensitization of the explosive during the delivery into the borehole, wherein said procedure comprises:
• a) dosing the matrix suspension into the borehole through a delivery hose,
• b) injecting gas into the matrix at the end part of the delivery hose,
• c) dispersing the gas into the matrix suspension using an in-line mixer located at the end of the delivery hose, and
• d) fixing the explosive density by regulating the flow rates of matrix suspension and gas;
• wherein said installation comprises:
• a) a first tank for the storage of the matrix suspension,
• b) a first pump connected to the first tank,
• c) the delivery hose connected to the pressure side of the first pump,
• d) the in-line mixer located at the end of the delivery hose,
• e) a compressed gas reserve,
• f) a gas flow regulator connected to the compressed gas reserve, and
• g) a conduit connecting the gas flow regulator with the in-line mixer.