A system and method for charging a blast hole

摘要

The present invention relates to the system and method for charging a flowable explosive material into a blast hole via a hose. The hose is wound on a reel of hose reel assembly which is mounted to a vehicle and a boom extending from the vehicle has a hose drive assembly for advancing the hose from an outer end of the boom. The hose is retrieved on the reel by operation of the first motor of the hose reel assembly, and the hose is paid out from the end of the boom by operation of a second motor of the hose drive assembly to advance the hose down a blast hole.