Open Cut

Acquisition of Coal Quality by Semi-Automatic Analysis of Corescan® HCI-3 system (Hyperspectral) and Other Images

Open Cut » General

Published: May 18Project Number: C25028

Get ReportAuthor: Emmy Manlapig, Frank Shi, Anh K Nguyen, John Jackson, Joan Esterle, Sandra Rodrigues, Hongping Liu, Sion Pretorius, Lionel Fonteneau | Julius Kruttschnitt Minerals Research Centre, The University of Queensland, CoreScan Pty Ltd

The planning and operation of a coal mining operation requires a clear and up to date understanding of the nature of the coal that would be mined, the manner in which the coal would be upgraded in the preparation plant and the target specifications of the product that will be produced. The process of product prediction and beneficiation strategies begins in the exploration phase with the drill core and its characterisation through visual logging, geophysical wireline logging and bore core treatment programs. Such, characterization enables determination of the mining sections within a seam or seams across a mining lease, and blending and scheduling strategies to meet product specifications. The more data that can be gathered, the better, but there is always a cost. In addition, any changes to sampling approach (i.e. redefinition of plies) during the life of the project can create difficulties in integrating historical coal quality data to model for natural trends or surprises change product character. To address these issues, the application of core scanners to collect coal quality data is becoming more popular, but the task is to determine which methods or combination of methods are applicable and how best to analyse the data.

This project examines the application of hyperspectral and X- CT scanning to derive information on coal quality, in particular coal lithotypes and mineral matter composition that will influence breakage and washability predictions. Hyperspectral scanners analyse different wavelengths allowing the identification of the minerals occurring in a rock. This project furthers studies that illustrate its applications to minerals in coal, and to identifying the coal itself. It builds upon previous projects, that demonstrated methods for determining the relationship between impact energy, coal hardness, and density to predict the distribution of product size and density after a breakage event, and the use of X Ray to derive density and washability. Breakage was characterised by the JK Rapid Breakage Testing device and simple drop shatter of core samples with different lithotype compositions.

No single technique gave all the characterisation data, but the project demonstrated that most attributes could be related back to the lithotype. If so, then the attributes might be propagated across a deposit via the core scanners (eg Corescan┬« HCI-3 system, X-CT Scans), or eventually downhole scanners and wireline log data, resulting in higher granularity integrated 3D property models of the deposit. This finding has significant impact on the application of the protocol in the industrial application because it means that the workflow for the industrial application might only require the characterisation of the breakage and washability of the end members.  A recommendation is to trial the image analysis approach on X-CT core scans or high resolution downhole images to derive the lithotypes and density simultaneously.


Health and safety, productivity and environment initiatives.


Open Cut

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

Recently Completed Projects

C19024Establishing Ecologically Sustainable Mine Water Release Criteria In Seasonally Flowing Streams

Extreme rainfall conditions in the Fitzroy Catchment over an approxi...

C25030Coal 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...

C27046Estimation Of True Deformation Vector From Slope Radar Monitoring

Slope deformation radar monitors are now widely used in open cut coa...

Open Cut

Coal Preparation

Maximising throughput and yield while minimising costs and emissions.

Recently Completed Projects

C27004Improving Coal Flotation With Oscillatory Air Supply

This report provides detailed information on coal flotation with os...

C25018Improving Solids Recovery And Moisture Reduction In Ultrafine Coal Dewatering

This report provides detailed information on fine coal dewatering in...

C27028Lab Froth Flotation Testing Guide With Coal Quality

Correct outcomes from laboratory froth flotation testing in coal bor...

Coal Preparation

Technical Market Support

Market acceptance and emphasising the advantages of Australian coals.

Recently Completed Projects

C26039Nanoporosity In Cokes: Their Origin, Control And Influence On CO2 Reactivity

This project using the outcomes of previous project C24060, examine...

C28063A Comprehensive Technical Review Of High-Efficiency Low-Emission (HELE) Pulverised Coal Combustion Technologies For Power Generation

Research and development has been undertaken worldwide to realise co...

C28064Carbon Structure Transformation During Coking Of Australian Coking Coals: Better Understanding The Coke Formation

Carbon structures of coke that are formed during the plastic layer a...

Technical Market Support

Mine Site Greenhouse Gas Mitigation

Mitigating greenhouse gas emissions from the production of coal.

Recently Completed Projects

C28076Selective Absorption Of Methane By Ionic Liquids (SAMIL) - Phase 2 Demonstration In A Packed Bed Reactor

An alternative approach to high temperature oxidation of ventilation...

C26004CFD Modelling Of Reverse Thermal Oxidisers For VAM Abatement - CFD Modelling Of Fixed-Bed RTO Devices

The project is part of a larger multi‐phase program of study a...

C27058Technological Assessment Of A Recycle Reactor For VAM Abatement

Underground coal mining emits high volumes of methane, diluted in ve...

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


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