| 摘要 |
The invention relates to an accessory (10) for a drilling apparatus (12) for drilling holes into the ground and into which explosives can be filled for blasting purposes. Such drilling commonly occurs in open cast mining for mining of mineral deposits. It is known to take samples from materials blown from holes during drilling, permitting analysis of the samples in order to estimate accurately the mineral content in the area being mined. The accessory (10) is operatively supported on a drilling apparatus (12) and includes a dust particle catcher (40), for catching dust particles blown from a hole to form dust particle samples, and a collection arrangement including receptacles (44) in which dust particle samples are collected. A control arrangement of the accessory (10) controls the operation thereof and serves also to enable the hole and the depth region of the hole, from which each sample was collected, to be identified. |
