Mining & Coal Handling

Solid Energy Stockton:

Stockton is New Zealand’s largest open cast mine providing high quality steelmaking coal for export. In conjunction with Brightwater Engineering we provided the control system for the Stockton coal handling & preparation plant.

The plant is controlled by a Rockwell ControlLogix system with RSViewSE SCADA. The Rockwell Powerflex 700 variable frequency drives and SMC soft starter drives are controlled over Ethernet. The DOL motors are controlled by custom programmed Tesys-T motor controllers. The production reporting system is OSIsoft PI based.

We completed this project in mid-2010 and continue to provide on-going support to Solid Energy.

Stockton Production Reporting:

We assisted with the installation and integration of OSIsoft PI for Solid Energy at a number of their sites; including development of production reports.

Lyttelton Port Fast Coal:

Lyttelton port has New Zealand’s largest coal handling facility. In conjunction with Fletcher Construction we provided the control system for the Train Unloader, Stacker, Reclaimer and Shiploader. These systems are controlled by distributed Rockwell ControlLogix PLC’s with a SCADA system consisting of dual RSView32 HMI servers and ADS clients.

The control system provides automated train unloading and coal stacking, automated coal reclaiming and online blending and ship loading via an automated schedule to maintain ship stability.

Communications between the mobile equipment is via Ethernet radio.
We completed this project in 2004 and continue to provide on-going support to LPC.

Stockton Mine:

We provided the Lime Dosing control system for pH correction of the mine run off water. The main PLC is a CompactLogix with RSViewSE SCADA.

Stockton Mine:

We provided the box car filling system for Stockton Mines’ Doppelmayr aerial rope-way coal transport system.

Spring Creek Mine:

We helped Spring Creeks’ automation team to upgrade their underground mine coal slurry pumping system.

Rocky Creek Wash Plant:

We assisted with the upgrade to the Rocky Creek Wash Plants’ control systems and have provided on-going support. The system is controlled with Rockwell SLC500s & Rockwell RSView32 supervisory.