| 摘要 |
A manually portable apparatus for the charging of small diameter boreholes with slurry explosive includes a slurry explosive storage compartment, a pneumatically operated reciprocal pump detachably connected to an outlet in the slurry storage compartment, delivery means attached to the pump for conveying slurry under pressure from the storage compartment into a borehold and control means for regulating the operating rate of the pump, the slurry delivery means being insertable to the bottom of the borehold and having attached to the forward end thereof means whereby the entrance of slurry under pressure into the borehole causes the delivery means to be withdrawn from the borehole. |
