Notícias - 320XPC Blasthole Drill
31 de março de 2015 - 07:33:39 -| por: P & H
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The P&H 320XPC is the preferred choice for large-diameter blasthole drilling in extremely difficult rock conditions. The electric main power and carriage provides enough torque and bit loading to drill in these tough conditions.

Working Ranges

 

Hole diameter 270 mm
to 444 mm		 10 5/8 in.
to 17 1/2 in.
Single-pass hole depth (maximum)
Standard:
Optional:		 19.8 m
21.3m		 65 ft.
70 ft.
Multi-pass hole depth (maximum)
Single pipe rack:
Dual pipe rack:		 39.6 m
59.4 m		 130 ft.
195 ft.
Maximum bit loading 68,038 kg 150,000 lbs.

 

Mast

 

Construction Lattice-type using alloy steel structural shapes
Mast
Standard:
Optional:		 19.81 m
21.3 m		 65 ft.
70 ft.
Raising and lowering
Two hydraulic cylinders
(Standard diameter)		 267 mm 10.5 in.

 

Pipe Handling

 

Type Parallelogram-style pipe rack, one rack is standard
Pipe size (diameter) 235-346 mm 9.25-13.625 in.
Options Additional pipe rack, up to two total
Auxiliary equipment Standard deck wrench
Auxiliary winch (capacity) 8,164 kg 18,000 lbs.
Breakout wrench P&H SureWrench

 

Lower/Propel

 

Crawler type Heavy-duty lug and tumbler drive system
Joy Global design
Shoe width (diameter)
Standard:
Optional:		 914 mm (36 in.)
117 mm (44 in.)
Propel machinery Dual hydrostatic planetary drive with spring set
Hydraulic release break
231kw (310 hp)
Propel speed (maximum)
High:
60 Hz
50 Hz
Low:
60 Hz
50 Hz		 1.61 kph
1.28 kph

0.97 kph
0.80 kph

 1.0 mph
0.8 mph

0.6 mph
0.5 mph
Maximum grade 20%
Take-up adjustment Jack and shim

 

Hydraulic System

 

Main system Closed loop design utilizing:
dual variable-displacement piston pumps for propel
Auxiliary system Open loop design utilizing:
vane pumps for mast raising, machine leveling, and pipe handling
Control valves Manifold-mounted electro-hydraulic, PLC-controlled discrete 24V DC solenoid
Hydraulic lines Extensive use of high-pressure steel tubing
Filtration 3-micron return filters
5-micron high-pressure filters
3-micron charge filters
Suction strainers

 

Hoist/Pulldown

 

Design DC electric motor-driven chainless rack-and-pinion design
Bit loading (maximum) 68,038 kg 150,000 lbs.
Drill feed rate (up to) 4.9 m/min 16 ft/min
Hoist rate (up to) 37.0 m/min 105 ft/min

 

Rotary Machinery

 

Design Dual DC P&H electric motors
Independent ABB DCS-800 drives control (master/follow drive topology)
Can be run as single rotary motor during service/repairs
Rotation speed 0-119 RPM
Maximum torque Up to 33,895 Nm (25,000 ft-lbs) for standard gear ratio

 

Air System

 

Gardner-Denver SSY Series oil-flooded screw type
Available volumes
Standard:		 97 m3/min 3,450 cfm*
Sullair oil-flooded screw type
Available volumes
Standard:		 109 m3/min 3,850 cfm*
Operating pressure 448 kPa 65 psi
Air filters Dual Donaldson two-stage, dry type (Gardner Denver)
Three Donaldson two-stage, dry type (Sullair)

* Nominal air volume. Actual values may vary according to application.

 

Electrical System

 

Incoming power supply voltage
60 Hz
50 Hz		 4160V / 7200V 3-phase
3300V, 5500V, 6000V, 6600V, or 7200V 3-phase
Recommended supply transformer Minimum 1.5 MVA continuous
6MVA minimum
Short circuit at drill
High voltage switchgear External disconnect at trail cable junction box
High-voltage load break disconnect
High-voltage vacuum contactor for main drive motor/drive
Main drive motor
Standard:
Optional:		 522 kW
746 kW		 700 hp
1,000 hp
VFD compressor oil cooler fan 22.4 kW 30 hp
Machinery house fans (2x): 5.6 kW 7.5 hp
Hoist blower motor 0.75 kW 1.0 hp
Auxiliary hydraulic pump 1.1 kW 1.5 hp
Compressor oil circulation pump 14.9 kW 20 hp
Cable reel hydraulic pump motor 3.7 kW 5 hp
Water injection pump motor 0.75 kW 1.0 hp

 

Overall Dimensions

 

Width, overall 8.51 m 27 ft. 11 in.
Height, mast up 30.6 m 100 ft. 6 in.
Height, mast down 10.2 m 33 ft. 6 in.
Length, mast up 18.50 m 60 ft. 8 in.
Length, mast down 32.88 m 107 ft. 10 in.
Overall width of crawlers 6.1 m 20 ft.
Overall length of crawlers 7.3 m 24 ft.
Width of jacks 4.6 m 15 ft. 2 in.
Length between jacks 10.3 m 33 ft. 7 in.
Height to top of operator cab 4.86 m 15 ft. 11 in.

 

Weights (Approximate)

 

Operating weight (maximum) 181,437 kg 400,000 lbs.
Shipping weight with mast 153,949 kg 339,400 lbs.
Ground-bearing pressure for track pads
914 mm (36 in.) shoes
117 mm (44 in.) shoes		 200 kPa
156 kPa		 29.0 psi
22.6 psi
Ground-bearing pressure for jacks
Standard size:
Optional size:		 890 kPa
317 kPa		 129 psi
46 psi

 

Leveling Jacks

 

Cylinders Four (4) 254mm (10 in.) diameter x
1,676 mm (66 in.) stroke
Jack pads
Diameter:
Standard:
Optional:
Ground pressure:
Standard:
Optional:

762 mm
1,270 mm

840 kPa
317 kPa

30 in.
50 in.

129 psi
46 psi
Auto level Standard feature

 

Operator’s Cab

 

Type Rear-mounted with vibration and noise suppression
Noise < 80 dB while drilling
Controls PLC controlled, backlit for night operation
Glazing Shatter-resistant, laminated glass on all sides
Roof window with guard
Climate control Mine Air Systems or Bergstrom* HVAC unit providing pressurization and filtration

 

 * Bergstrom trademark is the property of the brand’s owner.

Electrical Control Systems

  • Centurion Supervisory Controller for direct integrated communication with motor drives, giving precise motor control
  • Profibus communication protocol, providing seamless integration with all drill subsystems
  • Graphical User Interface displaying drill status, troubleshooting information, and production drill monitoring data

Lighting

  • LED floodlights for work and area lighting

Optional Equipment

  • 100A welding outlet
  • 600V / 100A auxiliary outlets
  • Auxiliary compressor
  • Bit lubrication
  • Cable reel
  • Cable reel lowering system
  • Cold weather package
  • Deck bushing (sleeve or roller type)
  • Deck-mounted jib crane
  • Fire suppression
  • Hydraulic rear dust curtain
  • Modular and Terrain interface package*
  • PreVail remote health monitoring
  • Remote propel control
  • Shock sub adaptor
  • Soft start transformer
  • Stand-alone welder
  • Tow package
  • Wiggins “Fastfil” system*

* Modular, Terrain and Wiggins are not registered trademarks of Joy Global Inc. or any of its affiliates.

Fonte: http://www.phmining.com/en/PHMining/Mining-Equipment/Blasthole-Drills/320XPC.htm
Autor: P & H

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