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Great antiquity and profession
Drill Rigs and Machinery of Epiroc（四）
By Hu Ming and Dong Xinye from Secretariat of China Rock Drilling Tools Association
hydraulic face drill rigs
Hydraulic face drill rigs are mainly used for tunneling and underground blasting projects. This series of drill rigs is equipped with rubber tires and diesel engines as the power system, and different types of booms, feed beams and drill rods of different lengths according to different conditions. At present, the most popularface drill rig in both home and aboard market is the Boomer series from Epiroc.
Boomer 281/282
The Boomer281/282 are four-wheel drive face drill rigs with the advantages of flexible steering, strong maneuverability, rapid boom positioning and easy operation. Among them, Boomer 281 is a single-boom drill rig with an effective drilling area of 31 square meters. Boomer 282 is a double-boom rig with a drilling area of 45 square meters.
Table1-1 hydraulic drifters for Boomer 281/282 face drill rigs
|
Hydraulic drifters |
COP1638 |
COP1838ME |
|
Shank adapters |
R32/R38/T38 |
R32/R38/T38 |
|
Height over drill center |
88mm |
88mm |
|
Length without shank |
1008mm |
1008mm |
|
Impact power |
16KW |
18KW |
|
Impact rate |
60Hz |
60Hz |
|
Pressure |
200bar |
230bar |
|
Rotation system |
Independent |
Independent |
|
Rotation speed |
0-340 rpm |
0-340rpm |
|
Rotation torque (Max) |
440-1100 Nm |
640-1100Nm |
|
Air consumption at 2 Bar |
5～7 l/s |
5 l/s |
|
Water consumption |
35～120 l/m |
40～120 l/m |
|
Weight |
173 Kg |
170 Kg |
|
Sound level |
106 dB(A) |
106 dB(A) |
Table 1-2 Boom parameters for Boomer 281/282 face drill rigs
|
Model |
BMH2831 |
BMH2837 |
BMH2843 |
|
Total Length |
4677mm |
5287mm |
5897mm |
|
Drill rod length |
3090mm |
3700mm |
4310mm |
|
Hole depth |
2795mm |
3405mm |
4015mm |
|
Feed force |
15.0kN |
15.0kN |
15.0kN |
|
Weight, incl. drill rods |
475kg |
495kg |
525kg |
Table1-3 drilling tools for Boomer 281/282 face drill rigs Unit: mm
|
Drill rods |
Couplings |
Shank adapters |
Drill bits |
|
R32-H35-R38 |
R38,D=55,L=170 |
R38,D=38,L=435 |
D45 |
|
R32-H35-T38 |
T38,D=55,L=190 |
T38,D=38,L=435 |
D45 |
|
R32-H35-T38 MF |
|
T38,D=38,L=525 |
D45 |
|
SR32-H35-T38 MF |
|
T38,D=38,L=525 |
D45 |
|
SR35-H35-T38 |
T38,D=55,L=190 |
T38,D=38,L=435 |
D45 |
|
SR35-R39-T38 |
T38,D=55,L=190 |
T38,D=38,L=435 |
D45 |
|
SR32-R39-T38 |
T38,D=55,L=190 |
T38,D=38,L=525 |
D45 |
|
SR35-R39-T38 MF |
T38,D=38,L=525 |
|
D45 |
