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Bucket Wheel Dredger Print
Written by Alex Ynema   
Thursday, 18 March 2010 13:02

TECHNICAL DATA

  • Dimensions 20m x 6.9mtr (main hull bolt section to 11.5mtr breakdown for shipping)
  • Dredging depth 9.7m without adaptor at 45 deg (13.7 with adaptor section)
  • Spuds Main travelling, both hydraulic11mtr standard (adaptor extensions as required)
  • Dredge pump Submerged Warman ladder pump (hydraulic drive)
  • Main engine Caterpillar V12 465Kw Marinised cooling
  • Cutter swing Swing booms with anchors
  • Assembled wet weight 80 tonne loaded and equipped
  • Free flowing sand dredging capacity 80ltrs/sec sand at 30%
  • Bucket wheel upgraded current design, with H/M replaceable teeth

Layout

  • Main body of barge in two sections bolted centreline forward central ladder assembly and lift boom, aft bolted two spud pontoons, mid side pontoons and fwd side pontoons.
  • Wheelhouse and engine room aft (engine room insulated) silenced.
  • 240 and 440 v generator fitted with welding cycle (Millar USA silenced)
  • All hydraulics upgraded mains to 60mm full flow, additional cooling and system capacity with pressure and return filtrations

CONSTRUCTION:

  • Builder: Neumann Contractors
  • Place: Currumbin (Qld Australia) finish Kwinana, West Australia
  • Refit 2005 - 2006
  • Design: Neumann Contractors
  • Material: Steel treated
  • Chine: Hard
  • Keel: 50 x 6 FB’s
  • Shell: 6mm P/L + 10mm P/L with localised reinforcements
  • Frames: 50 x 6 FBS
  • Beams: 200 x 75 PFC Longitudinal in AFT Section
  • Stringers: 50 x 6 FB’s
  • Deck: 6pl and localised reinforcements
  • S/Structure: AFT WHS & E/R on Deck aft
  • Windows: Aluminium Framed Safety Plate Glass
  • Double glazed between E/Rm and W/Hs.
  • W/T Bulkheads: 4 incorporated
  • Fuel: Approx - 10,000 Ltrs - 2 x 5000 L tanks
  • F/Water: Nil (containers loose) - Desalination

MACHINERY:

  • Main Engine: Caterpillar 3412-TA (Marinised cooling) S/No - 60M01824
  • Hrs – rebuild current (NIL)
  • Gearbox: 1 x 3 way Twindisc hydraulic drive
  • Steering Gear: Nil
  • Refrigeration: Nil
  • Shaft: Nil
  • Propeller: Nil
  • Exhaust: Dry Lagged
  • Other: Advance Hyd cylinder for spud. (Marinised)
  • Engine water-jacket cooled through submersed cooler - exchanger.

RIGGING/MOORING:

  • Mast: Navigation Lights
  • Boom: Anchor boom port and stbd aft.
  • Ladder Lift boom forward with sheave reduction
  • Ladder assembly, pinned forward of cabin
  • Hydraulic Drives: Ladder pump drive 2 x Rexroth AVLO11190
  • 190cc per revolution
  • Bucket wheel drive 2 x A10V71
  • Winch circuit drive 1 x A10V28
  • Pilot and lube pumps, HP and return filters
  • Hydraulic Lines: Hard and reinforced flexible lines, lines in good condition, end connections of flexible piping Denso tape all fittings (flex hoses refitted)
  • Winches: 5 winch assemblies driven by Kayaba hydraulic motor model H-95EWE-3
  • 3 winches of deck forward of WHS 2 port and starboard midships
  • (Ladder lift winch with locking pin)
  • All winches with full spool of wire rope (new) Galvanised wire cable
  • Anchors: Blast and treated 500kg
  • Spud leg drive (new lift chains )
  • Pump: Ladder pump WARMAN - G (gravel) 250mm 300mm Discharge
  • Oil endcaps, submersible bearing assembly improved water seals.
  • Pump driven by single hydraulic motor drive 500CC Rexroth
  • Cutter: Bucket wheel cutter with g’box and single hydraulic drive (50mm steel lines new)

LIFE SAVING APPLIANCES:

  • Life vests, Fire Extinguishers, Flares, Lifebuoys, Epirb

ACCESSORIES:

  • Accommodation Details: From Forward Cabin upper bunk room and lockers
  • Bucket cutter wheel, ladder pump, ladder lift boom, ladder assembly, deck winches,
  • Wheelhouse, Engine room.
  • Including 2 forward wing pontoons and 2 aft spud pontoons.
  • Main barge is made up of two longitudinal pontoons bolted together along centre.
  • Wheelhouse contains various controls including:
  • Engine speed
  • Engine room temperature
  • Engine rpm
  • Inverter volts/amps
  • Auxiliary spud control
  • Main spud control
  • Ladder control
  • Slide control
  • Tension control
  • Production slew control
  • Winch/cylinder hydraulic pressure
  • Bucket wheel hydraulic pressure
  • Ladder pump hydraulic pressure
  • Slurry pressure
  • Bucket wheel speed
  • Ladder pump speed
  • Winch speed control
  • Various other gauges
  • Wheelhouse also contained:
  • 240V AC switchboard
  • 1800i Inverter (true sine wave) 1800 watts
  • Murphy shut down protection for engine
  • Oil pollution plan (current spill kit on board)
  • Safety equipment list
  • Hydraulic ventilation fans
  • Engine room ventilated with hydraulic fan. Noise insulation covered with perforated steel on walls and roof.
  • Heat detection probe in engine room, clipsal 1239H series.
  • Magnetic flow meter (Fischer) 300mm

Hull Internal:

  • Various port and starboard voids treated.
  • Aft starboard void inspected to sight aft corner deck to side shell welds.
  • Welds intact with no visible corrosion or detriments.
  • Other voids not inspected sealed (all in current treatments)
  • Thorough rust resistant coating in voids inspected.

Hull External:

  • Non slip deck.
  • Painted externally.
  • Anodes in various places around hull were all replaced.
  • Most external areas have just been treated and repainted non slip decks redone (colour grey).
  • Cables, shackles, pins and sleeves S/S replaced and treated
  • Fitted main aft Hyd winch 4000kg with fairleads and snatch points
  • Lockers (deck) 2 x midships Port and Aft Stbd (ropes, buoys, anchors slings and spares)
  • Set “Stevi” and “Danforth” anchors with 25mm and 30mm rope
  • H/P washdown pump (portable) 240v with hoses.

Survey: - (licensed) Fremantle West Australia current 2D

 

Last Updated on Saturday, 27 March 2010 20:47