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Coal Preparation                                  reports

Coal Preparation

Maintenance, improved recovery and plant capacity are our key coal preparation strategies. Work is focused on maximising yield, reducing production costs, minimising emissions, reducing water consumption and the use of lower quality water without adversely impacting on process efficiency.


Environmental Improvement (13 Reports)

2D Classification of Coal: Refining the Segregation using the 2D Classifier

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C1603701/10/2007
Author: Kurt Liffman, Ben Aldham, Craig Seath, Ilija Sutalo | CSIRO

The goal of this project was to measure the size and density segregation of -2 mm coal powder that had been processed two times by the CSIRO 2D rotational classifier.

Stage 1: The project commenced in early March 2007, when CSIRO received six 44 gallon drums of coal slurry from ....  read more

 

ACARP Coal Preparation R&D Workshop: 30/31 March 1993

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C310730/06/1993
Author: Andrew R Swanson | Australian Coal Preparation Society

The control of coal industry funds for research and development has recently transferred from the Government (NERDDC Scheme) to the industry through the ACARP arrangement operated by the ACA. The ACA wishes to direct R&D funding into areas with the greatest potential for providing benefits ....  read more

 

Benchmark For Dry Beneficiation Of Coal By Laser Sorting

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C1305227/08/2009
Author: Jan Verboomen, Troy Blagden | Australian Inspection Technologies Pty Ltd

Traditional coal preparation involves a number of wet processing technologies which have been in use for many years. Whilst washing coal has allowed coal mines to provide higher quality product, it comes with drawbacks. Environmental regulations and guidelines are pointing towards a reduction ....  read more

 

Charge Neutralisation for Mechanical Tailings Dewatering

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C1504913/05/2009
Author: Peter Purdon | ACIRL Pty Ltd

The stated objective of this project was to demonstrate improved operation of the mechanical dewatering of coal tailings based on charge neutralisation of the feed.

The project demonstrated that belt press filter feed charge demand can be measured using a by-line sampling system, with ....  read more

 

Dry Classification of Fine Coal

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C1505504/05/2007
Author: KJ Walton, Kevin Galvin, AM Callen | University of Newcastle

The classification and beneficiation of coal with spirals or cyclones inherently involves high water consumption. The issue of water supply, particularly in arid areas, is further complicated by problems associated with waste tailings generation and disposal. The development of ....  read more

 

Impact of Flocculant Addition on Tailings Impoundment

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C1406401/10/2008
Author: Daniel Bembrick | SNF (Australia)

PLEASE NOTE that this report is NOT CURRENTLY AVAILABLE due to a Federal Court injunction in respect to SNF (Australia) Pty Ltd v Ciba Speciality Chemicals Water Treatments Limited [2011]-FCA452. Pending the outcome of an appeal process by SNF, the report will become available once again.  ....  read more

 

Impact of Saline Water on Coal Flotation

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C13051A01/10/2005
Author: Philip Ofori, Bruce Firth, Graeme Jameson, G Franks, A Nguyen | CSIRO Energy Technology, University of Newcastle

This project has produced a handbook to assist plant operators to understand the implications of changes in water chemistry in the plant, particularly on flotation.
Large inventories of saline water are accumulating at some mine sites due to discharge restrictions. At the same time  ....  read more

 

Improved Dewatering, Management and Rehabilitation of Problematic, Clay-Rich Coal Mine Tailings

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C2004701/03/2015
Author: Stuart Whitton, David Williams, Timothy Vangsness, Timothy Delport, Marek Zbik | Mechanical Advantage, University of Queensland

The aim of this project was to test a broad range of samples of clay mineral-rich run-of-mine (ROM) and tailings materials from coal mines across the various coal basins that are currently mined on the east coast of Australia. The clay mineral-rich samples and, for comparison purposes, a number ....  read more

 

Maximising Water Recovery in an Operating Paste Thickener

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C1804201/02/2012
Author: Götz Bickert & Bernd Länger | GBL Process, Outotec

The background for the project was that Bulga has installed the first paste thickener for coal tailings in Australia.  The paste thickener was installed to thicken tailings sufficiently to handle it on the reject conveyor.  During commissioning and operation it was determined that ....  read more

 

Stabilisation of Tailings and Water Recycling and Reuse

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C1506201/01/2006
Author: Philip Ofori, Bruce Firth | CSIRO Energy Technology

The coal industry recognises the significant challenges associated with the handling of fines rejects and with stabilising tailings dams with a high proportion of clay materials. Also the availability and cost of water is seen as an emerging problem. The industry wants to have better ....  read more

 

Tailings Management Through Control Of Colloidal Interactions

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C1803901/07/2011
Author: Philip Ofori, Anh V Nguyen, Bruce Firth, Clint McNally | CSIRO Energy Technology & School of Chemical Engineering University of Queensland

Handling fines rejects, stabilising tailings dams with a high proportion of clay materials and the emerging problem of availability, quality and cost of water present significant challenges to the coal industry. Effective solutions for these challenges are needed and require an improved ....  read more

 

Technical and Safety Comparison of DP Cell and Nucleonic Density Gauges

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C1305020/06/2006
Author: Andrew Vince, Ian Brake, Ben Cronin | BHP Billiton Mitsubishi Alliance

In Australian coal processing practice the measurement of slurry density is of critical to medium importance, depending on the application. A number of means are used for measuring density – traditionally nuclear and differential pressure methods. In recent times nuclear methods ....  read more

 

Working Effectively with Saline Water in Coal Preparation - Report and Handbook

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C1704601/12/2009
Author: P. Ofori, B. Firth, C. McNally, A. Nguyen | CSIRO Energy Technology, University of Queensland, Chemical Engineering

A Handbook is provided with this report.  

 

This study was undertaken to identify the impacts of using saline mine water as coal preparation process water and the reuse of plant water as a means of reducing fresh water use and approaches to maintaining optimum plant ....  read more

 

Underground

Health and safety, productivity and environment initiatives.

Recently Completed Projects

C24066Development Of An Alternative Electronic Spark Test Apparatus

Since a high profile incident in 1998, where two widely deployed IS cert...

C23005Use Of Plastic Metal In Underground Coal Mines For Minor Repair On Flameproof Equipment

The potential for a gas or dust explosion arising from hot work and ...

C25070Shuttle Car Steering System Optimisation

The condition of roadways in underground mines is of great importance, a...

Underground

Open Cut

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

Recently Completed Projects

C21028Automated Design Of Multi-Pass Dragline Strips Using 3D-Dig

This project aimed  to research, develop and implement a design...

C25030Guidelines For Coal Mine Open Pit Final Void Closure And Relinquishment - Addressing Uncertainty In Coal Mine Environmental Planning

This report addresses uncertainties faced by coal mine operators whe...

C25029Open Path Boundary Monitoring

The objective of this work was to investigate suitable options and imple...

Open Cut

Coal Preparation

Maximising throughput and yield while minimising costs and emissions.

Recently Completed Projects

C22031Investigation Of The Graviton Separator At Pilot Scale

Vast quantities of fine coal, worth hundreds of millions of dollars, are...

C24046Online Particle Size Monitoring In Coal Preparation

The principle of using laser diffraction as a means of measuring a v...

C24048Thickener Underflow Monitor

The aim of this project was to develop an instrument that is capable of ...

Coal Preparation

Technical Market Support

Market acceptance and emphasising the advantages of Australian coals.

Recently Completed Projects

C24060Structural Differences Between Coking Coals Of The Sydney Basin And Other Sources

Cokes made from Australian coals of relatively low fluidity can have...

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

A typical high-CSR Australian coke was subjected to high-temperature...

C24053Effect Of Coke Reactivity Upon Coke Strength With Focus On Microstructure

The primary aim of this project was to examine changes in the microstruc...

Technical Market Support

Mine Site Greenhouse Mitigation

Mitigating greenhouse gas emissions from the production of coal.

Recently Completed Projects

C19054VAM Enrichment With A Two-Stage Adsorption Process

Treatment of ventilation air methane (VAM) with cost-effective technolog...

C24017Improving Methods For Quantifying Fugitive Emissions From Open Cut Coal Mining

Fugitive emissions from open cut coal mines are usually estimated fo...

C21065Flame Arresting Mechanisms And Flameproof Device For VAM Mitigation

The overall goal of this project was to study the gas flammability limit...

Mine Site Greenhouse 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

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 ...

C19025Governance Strategies To Manage And Monitor Cumulative Impacts At The Local And Regional Level

ACARP levy contributors should order this report in the normal manner – ...

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