APPARATUS AND PROCESS FOR EXPLOSIVES BLOW LOADING

摘要

The application relates to a gas deflecting device for use in the blow loading of emulsion explosives compositions, the gas deflecting device comprising a nozzle which is capable of being removably attached to a blow loading hose, the nozzle comprising at least one vent and at least one vane along its length, the vane being adapted to allow free escape of gas from the nozzle through the vent but inhibitthe exit of explosive composition through the vents during blow loading. The application also provides a process for blow loading a blasthole with explosivescompositions the process comprising the steps of, (a) connecting a nozzle at or near the end of a blow loading hose, said nozzle comprising at least one vent and at least one vane along its length, said vane being adapted to allow gas to escape from the nozzle through the vent but inhibit the exit of explosive composition through the vent during blow loading, (b) positioning the nozzle at or near the collar of a blasthole, and (c) blowing explosives composition through the hose and the nozzle into the blasthole.