For mining drilling rig or blasthole drills selection, our target is choosing the right rig for right purpose, let’s have the further explanation on how to achieve this target. There are totally two parts for this topic, here is the part one.
Field of Application
OPEN PIT MINING (METALS, INDUSTRIAL AND BUILDING MATERIALS)
- Production drilling
- Pre-split drilling
- Overburden drilling in open cast mining
- Other drilling in open pit mines like wall stabilizing, roads, foundations for buildings, stationary crushers, conveyors etc, secondary breaking of oversize rocks, sampling drilling etc.
CONSTRUCTION
ON SITE
- road cuts, airfields, railways, foundations, canals, earth and rock fill dams, tunneling etc.
- Aggregates “travel” max. 45 km
OFF SITE
- Often categorized as open pit mining
- Aggregate, sand producing quarries
DIMENSION STONE QUARRIES
- Slot drilling
- Line drilling
- Splitting Squaring
- Pilot hole drilling
CONTRACTING
- Drill or Drill & Blast
- All suitable and unsuitable applications
Target of All Blasthole Drilling Applications
- Their real question generally should be whether they can find quality and quantity of drilling with minimum cost to maximum their profit
- The minimum cost is either total process or drilling and blasting or that of drilling, depending on their application
- But what is the priority?
Annual Cost – Unit Operation
When talking about Annual cost, the whole system cost should be included such as drilling, Blasting, Loading, Hauling, Crushing etc.
Cost per Ton – Degree of Fragmentation
Below picture is showing the relationship between Cost per Ton and Degree of Fragmentation for Drilling, blasting, Secondary Breakage, Loading, Hauling, Crushing respectively
Combined Unit Drilling Operational Cost
This Chart shows the combined/systematic Unit Operation Cost(From drilling to crushing) to Degree of Fragmentation
The rest of part of how to select mining drill rig or blasthole drilling machine will be introduced in part two.
- How Drilling Tools Selection Impacts Borehole Quality
- TOP 6 BRAND / Manufacturer For Drill Rigs
- How to Select DTH Hammer Drill Bit
- How to Select Rotary / Tricon Drilling Bit
- 7 Rules on How to Design Reverse Circulation System
- 6 Advantages of Reverse Circulation Vs Direct Circulation On Bore hole drilling
- 8 Points on How to Select Water Well Drilling Rig
- Market Survey Metals – Iron Ore
- Market Survey Metals – Bauxite, Alumina, Aluminium
- 7 Rules of Thumb for Open Bit Blast Pattern
- Mineral Commodity Summary
- Down The Hole Drilling Trouble Shooting – Bit Damage
- Down The Hole Drilling Trouble Shooting – Hammer Piston Casing Breakage
- Down The Hole Drilling Trouble Shooting – Treaded
- Selection of DTH Drilling Tools
- Rotary Drilling Method
- General Drilling Method and Application
- DTH Drilling Care & Maintenance – Part One
- DTH Drilling Care & Maintenance – Part Two
- Basic DTH and Top Hammer Drilling Knowledge
- Well Drilling Method
- Rock Properties
- Rock Drillability
- How to Repair Drill Bit
- DTH(Down The Hole) Drilling Application