ACARP ACARP ACARP ACARP
Open Cut

Application of Environmentally Friendly Lubricants to Open Cut Mining Machines

Open Cut » Maintenance & Equipment

Published: May 99Project Number: C6013

Get ReportAuthor: Will Scott, Keith Sherwood | QUT

New lubrication specifications are needed to improve the quality of lubricants used in the mining industry.  The mining industry spends more than $20 million a year on lubricants, however, lubrication specifications for machinery are inadequate. Two sets of specifications are used - the machine manufacturer's and lubricant supplier's. The manufacturer's specification states the minimum standard that the lubricant used on the machines must meet. The lubricant supplier's data sheets provide the actual performance details of the lubricant. Quality is lacking in many of these specifications. Poor specifications mean that comparison and evaluation of lubricants for their intended purposes is either not possible or very difficult. Manufacturers normally quote test results that are low-cost and easy to obtain, but may not be relevant. The procedures for the preparation of automotive lubricant specifications are much more comprehensive than for mining machines, despite the price disparity of the machines.

Project Objectives

To improve the quality of lubrication used on draglines and other mining equipment, specifically in open and enclosed gears, bushes, wire ropes and hydraulics. Biodegradable lubricants are also assessed.

  • Improvement in operational reliability, reduction in maintenance activity and the reduction of wear of lubricated components.

The criteria used to assess the quality of lubrication include:

  • The reduction of friction, the promotion of efficiency and reduction in operating costs.
  • The control and reduction of temperatures.

Findings

A standard specification needs to be adopted with suppliers required to provide data sheets to this standard.

To assist in producing new specification parameters, several test rigs and test methods have been developed, including:

  • Residual film thickness method (two systems of measurement have been developed) · Volatility
  • Adhesiveness
  • Film durability
  • High load shear stress
  • Two disk rig
  • High pressure chamber
  • Impacting ball apparatus
  • Gear lubricant film durability
  • Bush lubricant film durability
  • Wire rope penetration
  • Oxidation protection

These tests produce results that allow lubricants to be compared effectively.

The researchers also recommend that:

  • The new dragline lubricant test methods developed as part of the research are used by maintenance practitioners.
  • Shear stress proportionality coefficient (as measured by impacting ball or high-pressure chamber) is limited. This will improve the efficiency of energy utilisation and improve the life of gears and lubricants.
  • The film durability of open gear lubricants is determined to identify those lubricants which will be the most cost-effective.
  • Other special tests are conducted to progressively lift the performance of lubricants.
  • Conventional hydraulic fluids are used in preference to biodegradable fluids for normal operations.
  • Environmentally-friendly lubricants and hydraulic fluids are used only when performance standards are not compromised and it is cost-effective.

 Where To From Here

The researchers have recommended that a lubrication network is developed and lubrication workshops are conducted to provide a forum where common interests could be discussed and industry standards developed.

Underground

Health and safety, productivity and environment initiatives.

Recently Completed Projects

C27010A Clinical, Radiological And Occupational Review Of Coal Mine Dust Lung Disease In Queensland

The aim of this project was to review recently diagnosed cases of Co...

C26061The Young’S Moduli, Poisson’S Ratios And Poroelastic Coefficients Of Coals

This report describes the measurement of coal (and rock) properties ...

C24015 Assessment Of Convergence Based Roof Support Design For Longwall Abutment Loads

The aim of Stage two of project C24015 was to develop a roof support...

Underground

Open Cut

Safety, productivity and the right to operate are priorities for open cut mine research.

Recently Completed Projects

C23029Alternative And Sustainable Explosive Formulations To Eliminate Nitrogen Oxide Emissions

This technical report describes the technology of a novel mining exp...

C25005Site Based Trials Of Alternative Explosive Formulations To Eliminate Nitrogen Oxide Emissions

This report documents the outcomes of Phase 3 of this project and b...

C26022Real-Time Prediction Of Coal Top Through Guided Borehole Radar Wave Imaging For Open Cut Blast-Hole Drilling

Damage to the tops of coal seams caused by incorrect blast stand-off...

Open Cut

Coal Preparation

Maximising throughput and yield while minimising costs and emissions.

Recently Completed Projects

C26015Novel Characterisation Of Coal Petrography For Improving The Dewatering Of Fine Coals Using Chemicals

This project aimed to develop alternatives to existing mechanical de...

C26014Low Cost Online Measurement Of Particle Size And Density For Diagnostics Across The Fine Coal Circuit

This project has developed a novel prototype optical system for prof...

C26008Implementation Of Oxidation Monitoring Tools And New Reagents In Plants To Improve The Flotation Of Oxidised Coals

Flotation of oxidized coals is a challenge confronting the Australia...

Coal Preparation

Technical Market Support

Market acceptance and emphasising the advantages of Australian coals.

Recently Completed Projects

C26045Mineralogy Effects On The 3D Porosity Evolution Of Coke And Coke Reactivity

CRI/CSR CO2 combustion data are key metrics of coke quality and perf...

C25049Fusibility Of Coal Blends And Minerals In Coking

The CSIRO optical reflected light imaging CGA (Coal Grain Analysis) ...

C25045Stage Two - Assessment Of In Situ High-Temperature Strength Of Cokes

Stage I of this project established a reliable and repeatable proces...

Technical Market Support

Mine Site Greenhouse Gas Mitigation

Mitigating greenhouse gas emissions from the production of coal.

Recently Completed Projects

C27008Selective Absorption Of Methane By Ionic Liquids

The connection of a ventilation air methane (VAM) abatement plant di...

C24061Proof-Of-Concept Photocatalytic Destruction Of Methane For Coal Mining Fugitive Emissions Abatement

Australia's fugitive emissions in 2015 were 41 Mt CO2-e (representin...

C23052Novel Stone Dust Looping Process For Ventilation Air Methane Abatement - Phase 3

This multi‐phase project is concerned with the mitigation of m...

Mine Site Greenhouse Gas Mitigation

Low Emission Coal Use

Step-change technologies aimed at reducing greenhouse gas emissions.

Recently Completed Projects

C17060BGasification Of Australian Coals

Four Australian coals were trialled in the Siemens 5 MWth pilot scale ga...

C17060AOxyfuel Technology For Carbon Capture And Storage Critical Clean Coal Technology - Interim Support

The status of oxy-fuel technology for first-generation plant is indicate...

C18007Review Of Underground Coal Gasification

This report consists of a broad review of underground coal gasification,...

Low Emission Coal Use

Mining And The Community

The relationship between mines and the local community.

Recently Completed Projects

C16027Assessing Housing And Labour Market Impacts Of Mining Developments In Bowen Basin Communities

The focus of this ACARP-funded project has been to identify a number...

C22029Understanding And Managing Cumulative Impacts Of Coal Mining And Other Land Uses In Regions With Diversified Economies

The coal industry operates in the context of competing land-uses that sh...

C23016Approval And Planning Assessment Of Black Coal Mines In NSW And Qld: A Review Of Economic Assessment Techniques

This reports on issues surrounding economic assessment and analysis ...

Mining And The Community

NERDDC

National Energy Research,Development & Demonstration Council (NERDDC) reports - pre 1992.

Recently Completed Projects

1609-C1609Self Heating of Spoil Piles from Open Cut Coal Mines

Self Heating of Spoil Piles from Open Cut Coal Mines

1301-C1301Stress Control Methods for Optimised Development...

Stress Control Methods for Optimised Development and Extraction Operations

0033-C1356Commissioned Report: Australian Thermal Coals...

Commissioned Report: Australian Thermal Coals - An Industry Handbook

NERDDC