Brandt ‘Bugsy’ North, Safety Ambassador/Choices and Consequences Presenter, Downunder Group Solution
Mark Parcell, Sole Director, Mine Safety Institute of Australia (interviewer)
Daily Introduction by Master of Ceremonies
Russell White, Managing Director, Driver Safety Australia
Welcome by Principal Sponsor – Anglo American
Tyler Mitchelson, CEO Metallurgical Coal, Anglo American
Presentation of the Queensland Mining Industry Health and Safety Conference Legends Award for 2019
Matt Ramsay
Drilling Superintendent – Gas, Anglo American – Moranbah North Mine
The Problem
The rehabilitation of redundant Mine Service boreholes requires the shearing and removal of cemented 20” Steel casing at 1.5m below the ground surface.
This process previously required the entry into the excavation and the risk associated with the manual handling of a hydraulic saw device to cut the casing at required position.
During this cutting process the operators experienced several rotating blade failures that resulted in small shard of steel ejected from the saw blade and contacted the operator’s glove.
The Solution
The strategy to eliminate the hazards identified from investigation of the event; it was actioned to source an alternative device with the capacity to efficiently shear 20” cement encased steel casing, eliminating manual handling, exposure to excavation; via the functionality of remote operation.
The Diamond Wire Saw (DWS) device was identified, assessed and then progressed to primary design functional testing phase in December 2018. With positive observations of improved safety, efficiency and operational performance parameters.
During the trial and testing period, this involved collaboration and engagement of DWS OEM and test operators. The collaboration of stakeholders delivered engineering inputs combined with the collation of test operator feedback facilitated continuous improvement of the DWS device’s re-purposed application into an integrated mobile unit.
The Benefits
The field functional testing and operation of the DWS mobile unit demonstrated:
- Elimination – of traditional rotating blade failure hazard – Guarded Diamond impregnated cable
- Elimination – of manual handling – proximity protected – remotely controlled loader positions and retrieves DWS
- Elimination – CMW entry into excavation – DWS utilizes self-attachment / release function
- Elimination – of manual handling – proximity protected – remotely controlled loader secures the casing during cutting process and relocates to waste transport
- Separation – remote operator console – remove CMW exposure to line of fire
- Separation – remote operator console – remove CMW exposure to excavation
- Operational effectiveness performance realized an increase of 60% on previous methodology
Natascha Viljoen
Group Head of Processing, Anglo American
Natascha is responsible for Group Processing, a specialist technical services and support function that ensures safe, responsible and optimized processing performance, through step-change technologies and operational excellence.
With a Metallurgical Engineering degree from North-West University and an Executive MBA from the University of Cape Town (Cum Laude), Natascha also serves on advisory boards at the Universities of Cape Town, Stellenbosch, Pretoria and Queensland University’s Julius Kruttschnitt Mineral Research Centre, having previously held a non-executive position on Anglo American’s Kumba Iron Ore Board.
Natascha has previously worked with ISCOR, Anglo Gold, Anglo Platinum, Samancor Chrome, BHP Billiton and Lonmin.
Dave Zanette
Project Supervisor, BMA
Andrew Batterson
BMA Engineering
The Broadmeadow Battery Electric Vehicle project was initiated to address the residual Similar Exposure Groups (SEG) exposure to Diesel Particulate Matter (DPM).
Over the last 3 years, Broadmeadow (BRM) has successfully completed a number of projects to reduce occupational exposures to DPM for the underground SEGs. These initiatives have resulted in ongoing improvement to the mine’s total exposure profile, which we understand is now approximately one third of most other underground coal mines in Queensland.
After exhausting all options for a suitable lower emissions diesel engine package options for underground personnel transporters BMA initiated an aggressive schedule for implementation of an underground battery electric personnel transporter.
With the local market opportunities exhausted, the BRM team sourced international suppliers with previous experience in manufacturing electric personnel transporters. A supplier was selected and a commitment to implement a surface trial was to commence in FY19.
Broadmeadow set up and implement a team to carry out the FAT testing and trial of the vehicle, the trial included but not limited to determining all required safety, legislative, performance and failure modes required by stakeholders for the trial to be successful. In the back ground the engineering team and supplier conducted the necessary detailed assessments and engineering modifications against current Australian Standards and legislation for the suitability of implementing an underground trial.
BRM has successfully completed surface and underground trials proving the safety, reliability and performance of a battery electric vehicle whilst also validating the extremely low operating cost.
The next phase of the project is to implement full production trials by removing all diesel powered personnel transporters from a development section of the mine to validate the DPM exposure reductions.