Client: Hallett Group
Services: Project management, Engineering
Location: Dry Creek, South Australia
Period: March 2023

D&S Resources were engaged to project manage the commissioning of a reinstated crushing mill.


The project involved dismantling and transporting a decommissioned mill and ancillary components from Port Lincoln to Adelaide. Once delivered to site, D&S had to prepare the facility to install and erect the mill. The client requirements were to get the mill operational to meet production targets and integrate into existing processing plant.


D&S Resources designed, fabricated, supplied, installed, and commissioned at Dry Creek various units as part of Hallett Group processing plant plus common discharge blower to truck:

Dry Ash Unit:

  • Pump
  • Dryer
  • Centrifuge
  • Mixer
  • Water Tanks
  • Silo

Wet Ash Unit:

  • Mixer
  • Centrifuge
  • Filter
  • Pumps and receiver

Slag Production Unit:

  • Electrical Motor
  • Gearbox
  • Pinion
  • Mill

Loading-Unloading Unit

  • Ash Silo
  • Slag Silo
  • Ash Tank Blower
  • Slag Tank Blower

The responsibilities and obligations of D&S Resources included:

  • Line list (piping, tubing), equipment list, instrument/electrical list, and cable schedule
  • List of system and subsystems
  • Preliminary and functional tests
  • Setting points (alarms and trips)
  • Piping and vessels (leak test / pressure test or service test)
  • Spare list, lubricant, special tools, chemicals.
  • Engineering drawings, vendors documents & equipment list
  • Project specifications and standard list
  • Sets of PID’s and PFD’s
  • Layout and general arrangement drawings
  • Piping specification
  • Operating manual
  • Equipment and instrument data sheets
  • TSLD’s (trouble shooting logic diagram)
  • Process control configuration
  • F&G layout
  • Electrical distribution
  • Switchboards one-line diagrams
  • Wiring diagrams
  • Lighting layout (already working)
  • Vendors manuals (installation, Pre-commissioning, Commissioning, operation, maintenance) if existing.
  • Startup sequence