Down hole drill
DH70QD
1.Drilling rigModelDH70QDRock rigidityf=6-20Diam. of hole(mm)68-80Optimum drilling depth(m)15Rod len
Parameters
1.Drilling rig
| Item | Unit | Value |
|---|---|---|
| Model | — | DH70QD |
| Rock rigidity | — | f=6-20 |
| Diam. of hole(mm) | — | 68-80 |
| Optimum drilling depth(m) | — | 15 |
| Rod length(mm) | — | 1000 |
| Max. lifting power(N) | — | 4200 |
| Working pressure(mpa) | — | 0.5-0.7 |
| Speed of rotator(r/min) | — | 0-90 |
| Motor power(kw) | — | 3 |
| Weight(kg) | — | 175 |
| Item | Unit | Value |
|---|---|---|
| 1.Drilling rig — Air consumption | m3/min | 3.5-5 |
2.Compressors
| Item | Unit | Value |
|---|---|---|
| Model: MHC190-8 | — | Diesel Engine |
| Type: Double Rotary Screw, One stage compression | — | Model:WP3.9G65E2 |
| Cool way: Oil cooled | — | Type: water cool,4 stroke |
| Air Delivery: 5.3m3/min | — | Working power:48kw |
| Working pressure: 8bar | — | Rated rotation speed:2400rpm |
| Driven way: Coupling direct connected, diesel driven | — | Lube oil capacity:20L |
| Lube oil:20L | — | Fuel tank capacity:80L |
| Oil tank capacity:7-10L | — | Coolant capacity:14L |
