Tag Archives: Dave Lawie

Weir’s ore characterisation work shifts gears to value generation loop

Base metals, Comminution of minerals, Environmental, Mineral processing, Mining equipment, Mining services, Steel and iron ore, Sustainable mining, , , , , , , , , , , , , , , , , ,

Chris Carpenter, VP of Technology for Weir ESCO®, is on a crusade to educate the mining industry on the importance of orebody knowledge.

As an executive with more than 35 years of experience and 40 patents to his name, he has heard numerous stories about “sub-optimal operational decisions” being made at mine sites due to a lack of information.

Through an ore characterisation project under development within several teams at Weir, Carpenter shared the company is focused on developing cost-effective solutions to provide this information in real time.

He is, however, aware that the mining sector, as a whole, needs convincing.

“I can tell you that many of our customers do not yet acknowledge the full value of what we are looking to provide the sector,” he told IM.

This is changing, with industry studies on the correlation between poor orebody knowledge and negative financial impacts and risks in the mine development process coming to light – IMDEX, the Mineral Deposit Research Unit and the Bradshaw Research Institute for Minerals and Mining at the University of British Columbia and Ideon Technologies are, for instance, currently engaged on such a study.

In announcing the study, IMDEX Chief Geoscientist, Dave Lawie, hit on a similar theme to Carpenter: “For the mining industry to adopt this technology, it must have clear evidence of the financial impacts and risks of poor or no orebody knowledge and a way of assessing the most efficient methods of collecting, analysing and optimising it.”

What “this technology” is remains open to debate, with many pre-concentration and ore sorting technologies continuing to sprout up among fertile innovation soil in the mining sector.

ESCO and Carpenter believe this technology – at least in a base metals and iron ore application context – has roots in Sustainable Development Technology Canada (SDTC), an arm’s-length foundation created by the Government of Canada to fund new clean technologies. Motion Metrics International Corp received SDTC funding back in 2020 for a project using the core innovations of hyperspectral imagery (HSI) sensors, 3D particle size distribution (PSD) analysis and machine-learning algorithms to control energy-intensive mining equipment, an SDTC backgrounder from 2020 explained.

Chris Carpenter, VP of Technology for Weir ESCO

Motion Metrics, in a separate announcement, said the 3.5-year project would lead to the design, development and deployment of a commercial mine-to-mill energy efficiency solution.

“Upon successful completion, mines worldwide will be able to order and deploy this solution, without changing their daily operations, to meet their sustainability targets while reducing their comminution costs,” it said.

University of British Columbia’s Norman B. Keevil Mining Engineering Department and several other organisations partnered with Motion Metrics for this project.

A lot has changed in the four years since this announcement, with Weir Group having acquired Motion Metrics International Corp and been incorporated into ESCO.

IM initially reported on developments of what Carpenter referred to as an “ore characterisation” project in 2022. At that time, this consisted of a BeltMetrics™ trial installation using a MOTION METRICS™ advanced imaging sensor for PSD analysis and a commercial, HSI sensor positioned above a conveyor that was directly after the crusher in a mine’s flowsheet.

When IM caught up with Carpenter in late July, he could report on not only progress with the BeltMetrics installation, but also a fixed-term trial of “ore characterisation” in a TruckMetrics™ installation.

“We have now run two different applications for the technology,” he said. “The belt monitoring trial continues to operate and has demonstrated the ability to predict SAG mill throughput based on the input ore characteristics. We also ran a very successful trial of bulk sorting using similar technology looking at the content of haul trucks. The trial monitored and analysed around 1,000 trucks and several were identified as low grade. Extensive lab testing continues as we evaluate mine ore samples to understand the capabilities of our approach. Based on our lab and field evaluations we are convinced the technology will allow us to quickly and accurately monitor grade, alteration, deportment and deleterious minerals.”

The BeltMetrics trial installation uses a MOTION METRICS advanced imaging sensor for PSD analysis and a commercial, HSI sensor positioned above a conveyor that is directly after the crusher in the mine’s flowsheet

“I would say our proof of concept work has really allowed us to now pick up the pace of investment and search for more development partners to further this technology.”

The TruckMetrics ore monitoring trial – carried out on 100-232 t-payload trucks – may pique interest here, but Carpenter says the initial product development path lies in the processing plant and on the conveyor.

“We are looking to, first, put more minimum viable products (MVPs) out in the market for belt-based solutions,” he said. “While our initial entry into this space was to look at bulk sorting – and we recognise this is still the ‘big target’ – [the] voice of [the] customer research has identified a huge need to provide plant-based systems for applications in managing stockpiles and feed grades.”

These MVPs are likely to be deployed on “development partner” sites with existing separation mechanisms downstream of the crusher – ie apron feeders – where diversions can be made based on the HSI and PSD data.

This same voice of the customer research highlighted the need for an in-pit system that could boost productivity, throughput and recovery ahead of the plant, yet the financial amount estimated for a commercial system based on the HSI and PSD sensor combination did not find favour.

“This has led to our own research into what we feel is a new-to-the-world application or modification of standard HSI,” Carpenter said. “We believe this will give us a competitive edge in the market.”

Illumination restrictions and uses have often been touted as the potential drawbacks of using spectral imaging in the ore sorting space, which IM understands is one of the areas of focus for Weir’s own R&D and lab-based testing.

But there are also other factors to consider ahead of a commercial Weir proposition – whether that is in the pit or plant – landing on the market.

“We don’t just want to be sensor salespeople,” Carpenter says. “The complexity and variety of applications will require a shift to specific solutions for our customers and the need to back that up with the aftermarket service our customers expect becoming their productivity partner.

“What we are proposing is more than just technology; it needs to be a solution that validates the value on a regular basis in a continuous loop.”

That same loop comes back to Carpenter’s and Lawie’s assessment of the industry need to acknowledge the value of such data ahead of adopting the technology.

“Fortunately, our ‘Mining technology for a sustainable future’ focus at Weir is allowing us to invest the money the industry needs to provide both the value generation and value acknowledgement to make such solutions viable and effective,” Carpenter concluded. “This type of work – and orebody knowledge more widely – is critical for the future of mining.”

IMDEX in deep dive study to show value of orebody knowledge

Mineral exploration, Mining industry recognition, Mining services, , , , , , , , , , , , ,

Leading global mining-tech company IMDEX is collaborating on what it says is a groundbreaking study backed by Canada’s preeminent sciences research body to determine the real value of orebody knowledge (OBK) in mineral exploration and mining.

IMDEX is partnering with the Mineral Deposit Research Unit (MDRU) and the Bradshaw Research Institute for Minerals and Mining (BRIMM) at the University of British Columbia, and Ideon Technologies, a leader in applying muon tomography for orebody imaging, in the million-dollar, two-year deep dive into the economics of OBK.

The MDRU is one of the largest integrated mineral deposit and exploration research groups in the world, dedicated to solving mineral exploration-related problems. The BRIMM creates multidisciplinary teams of leading researchers to work with industry to find solutions to the biggest challenges facing the mining industry and trains the next generation of multidisciplinary professionals.

The Natural Sciences and Engineering Research Council of Canada – the major federal agency responsible for funding natural sciences and engineering research in Canada – will part-fund the study through the NSERC Alliance program.

IMDEX Chief Geoscientist, Dave Lawie, said the research findings would contribute to knowledge on the economic benefits of enhanced OBK, promote adoption of new technologies, and help define future research and development directions in the mining industry.

“The mining industry has been slow to adopt innovative orebody knowledge approaches and data collection, despite the increasing improvement and sophistication of the technology,” Lawie said.

“One of the reasons for this reluctance is that mining companies, researchers and technology providers find it difficult to articulate the financial value of OBK; to explain in dollar terms the financial gain of being able to make better decisions earlier and reduce risk from greenfields exploration through to mining production.

“Clearly articulating the dollar value of OBK also assists in the adoption of technology where the cost is born in one part of an operation or organisation, but the dollar benefit is accrued in a different department or during a separate phase of development. It helps address the question, ‘Who will pay for what does not happen?’ where operational risk reduction is the key driver.

“Without quality OBK, companies are taking unnecessary mine development risks.

“For the mining industry to adopt this technology, it must have clear evidence of the financial impacts and risks of poor or no OBK and a way of assessing the most efficient methods of collecting, analysing and optimising it.”

IMDEX says it is leading the development of innovative orebody knowledge technology including through its IMDEX BLAST DOG™, a semi-autonomously deployed borehole sensing and physical measurement technology that provides near real-time orebody knowledge and physical information of the blast hole.

The company also has extensive experience in directional core drilling capabilities through its acquisition of Devico and its leading technology, which has benefits particularly in the search for deep mineral deposits.

Ideon’s technology generates images of orebodies deep beneath the Earth’s surface, up to 1 km below ground level, and has proven effective in detecting deep orebodies, which are challenging to locate using traditional methods, according to IMDEX.

“As exploration increasingly targets greater depths, deep OBK and efficient, environmentally sound methods of drill testing will become more relevant for making accurate early estimates of mineral reserves at speed,” Lawie said.

Senior researchers at UBC will drive the study along with a range of postdoctoral experts. The study will analyse mine projects completed over the past 23 years, integrating information from the Toronto Stock Exchange and the Australian Securities Exchange with the respective countries’ mine project reporting codes, the NI 43-101 and the JORC code, to assess the link between OBK – or lack of it – and mine project performance.

Other elements of the study will:

  • Quantify the write-down value attributable to orebody complications;
  • Quantify the link between OBK and mine project performance;
  • Assess the cost of obtaining OBK against the potential value lost in the project; and
  • Develop a risk assessment tool to allow companies to design work programs to optimise OBK and reduce project risk.

Lawie said previous UBC research by John Steen, Michael Samis and Andrew Gillis covering the period 2003 to 2016 revealed that geoscientific challenges were associated with financial losses by mine projects in at least 30% of cases, presenting the Value of Information case that has now expanded into the economic benefits of enhanced orebody knowledge.

This research will provide a starting point for the study using advanced data collection and interpretation to better understand the geological risks associated with mine development projects.

“To our knowledge, this integrated research approach has not been previously attempted,” Lawie said.

IMDEX’s Lawie on BLAST DOG’s continual orebody knowledge evolution

Automation, Explosives and blasting, IoT, Mining equipment, Mining events, Mining services, Mining software, , , , , ,

In a presentation to the International Mining and Resources Conference (IMARC) in Sydney, Australia, today, entitled ‘Get a Dog’, IMDEX Chief Geoscientist and Chief Technologist – Mining, Dave Lawie, charted the five-year development journey of the company’s BLAST DOG™ technology that, the company says, provides unrivalled pre-blast orebody knowledge and a 3D view into the bench.

BLAST DOG is a commodity-agnostic blast hole sensing and physical measurement technology that will provide near real-time blast hole physicals and orebody knowledge, according to IMDEX. The value of the technology is in the power of integrated data, enabling experts to make informed decisions that affect each stage of the mining value chain.

“Ten years ago, orebody knowledge was quite an abstract notion,” Dr Lawie said. “When we first discussed it, people wanted more information. Five years ago, they were becoming more interested, and today it’s a theme in the industry.

“IMDEX has led that discussion and been at the forefront of the development of technologies that deliver better orebody knowledge. Reliable orebody knowledge is central to good mine planning. It provides the data that allows for informed decision making that delivers savings throughout the mining life cycle.”

The BLAST DOG sensor is on a track-mounted robotic platform with semi-autonomous hole positioning and alignment capability working over variable terrain and bench conditions, IMDEX explained.

IMDEX Chief Geoscientist and Chief Technologist – Mining, Dave Lawie

Directly and rapidly measuring the orebody via blast holes reveals what the ore reserve looks like in the ground, at a high resolution, and immediately prior to its extraction, providing mining companies with “insurance” data that protects people, heritage, equipment and neighbouring communities, according to the company.

The data has the potential to be used to develop programs to, the company says, improve safety; mine planning; blast design; fragmentation; reduce fume, flyrock, vibration, air-blast and dust; and improve material assignment post blast.

Dr Lawie said an IMARC presentation in 2015 discussing spatial factors among the activity drivers in mining confirmed to IMDEX that its identification and focus on orebody knowledge was correct. But at the time there was no “Internet of Geosensing” system able to deliver the right information.

“The reference to spatial factors is really the Internet of Geosensing; IoG is an orebody knowledge system, and that’s what BLAST DOG delivers,” he said.

The reduction or management of variation alone creates value, with the characterisation of waste as important as the identification of the target metals or minerals, according to IMDEX.

It creates the opportunity for better segregation of ore from waste during mining and, therefore, grade optimisation as well as maximisation of ore recovery and minimisation of dilution.

With the delivery vehicle coming from Universal Field Robots and the downhole sensors designed and refined by IMDEX, the addition of MinePortal 3D visualisation software has accelerated IMDEX BLAST DOG for mining production, IMDEX says.

The company achieved its first commercial contract with BLAST DOG in August this year, at Iron Bridge in the Pilbara region of Western Australia, with the agreement providing for the staged use of up to three units together with associated products, software, data analysis, reporting and support.

Six commercial prototype trials are planned for the 2023 financial year under the first phase of BLAST DOG development.

IMDEX concluded: “The BLAST DOG technology will continue to evolve, with new answer products, novel and democratised modelling and visual outputs being developed along with expansion to other commodities and geographies and eventually to underground applications.”

IMDEX’s ioGAS to feature in Micromine 2020 3D modelling and mine design software

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MICROMINE and IMDEX have agreed to collaborate on the next release of Micromine 2020, with the latter company’s ioGAS solution being incorporated into the 3D modelling and mine design software.

This collaboration, bringing together detailed geoscience analytics with sophisticated 3D modelling and mine design software, will enhance the geological modelling workflow, according to MICROMINE.

According to IMDEX, ioGAS is a leading exploratory data analysis software application developed specifically for the resources industry. “Traditional methods to analyse results would take many hours and is prone to human error; ioGAS can generate accurate results in a fraction of the time. Over the past decade, a wide range of visual analytics and advanced quantitative tools have been developed to help you obtain a greater insight into the underlying structure of your data,” the company said.

The two companies have been working together for several months to integrate output from IMDEX’s ioGAS solution, according to MICROMINE.

“The collaboration means geoscientists will be able to directly import ioGAS (.gas) files into Micromine 2020 software to map and model geological domains,” MICROMINE said.

Micromine Product Strategy Manager, Mark Gabbitus, said the ability to import the files and related geological and geochemical interpretative analysis into Micromine 2020 was a boon for both companies and their thousands of global software users.

“MICROMINE and IMDEX recognise it’s in everyone’s interests to enable the efficient transfer of data between packages,” he said.

“Integrating software with third-party systems like ioGAS not only makes our client’s jobs easier but advances the industry, which MICROMINE values as a thought-leader in the METS sector.”

Micromine 2020 might still be in development, but Gabbitus confirmed some of the key features that would integrate with ioGAS included:

  • In-built ioGAS symbol library so that data imported into Micromine looks exactly as it did in ioGAS;
  • Down hole data that can brought from an ioGAS .gas file directly into Micromine as points where attributes (eg material type) can be modelled or displayed alongside geological logging to validate boundaries and contacts; and;
  • Down hole data displays that effectively show how geochemical properties differ between logged geological units.

MICROMINE added: “In Micromine 2020, drill hole traces can be easily created from down hole points contained in an ioGAS.gas file. This data is then saved as a drill hole database in Micromine.”

With over 10 years of development, IMDEX’s ioGAS software has resulted in optimised workflows and easy to use tools that incorporate industry best practise in interpretive techniques, according to MICROMINE. The exploratory data analysis software offers detection of patterns, anomalies and relationships in geoscience data. With over 350 commercial clients and 20 government organisation users, ioGAS has established itself as a global market leader, MICROMINE said.

Dave Lawie, IMDEX Chief Geoscientist, said: “It is exciting to combine the benefits of these market-leading software packages to provide additional value for our clients. This integration offers a seamless integration of ioGAS files and related interpretative analysis directly into MICROMINE 2020.”

Last month, MICROMINE said Micromine 2020 will no longer support installation or use on computers with a 32-bit processor.

IMDEX showcasing real-time and downhole exploration solutions at PDAC

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IMDEX is showing off its exploration drilling wares at the Prospectors and Developers Association of Canada’s (PDAC) annual bash in Toronto, Canada.

IMDEX’s booth – incorporating the REFLEX and AMC brands – is showcasing the company’s integrated solutions and latest technologies including its AMC ULWSRU™ featuring the IMDEX MUD AID, IMDEX MOBILE software, drilling optimisation and downhole navigation solutions, and real-time 3D visualisation solutions for downhole and structural geology data, the company said.

The AMC ULWSRU, featuring the IMDEXMUD AID, has seen IMDEX combine the benefits of its ultra-lightweight solids removal unit and automated in-field drilling fluid diagnosis unit – including remote tracking technology – to optimise penetration rates, core recovery and metres drilled per bit, according to the company.

IMDEX MOBILE, meanwhile, has seen the company work closely with clients to create more than 20 ready-to-use forms and reports including daily drill reports; pre-start inspections; verified cost reports; and rig productivity reports.

All of these are available via the new off-the-shelf software, according to IMDEX.

General Manager, IMDEX Product Development, Michelle Carey, said: “We are committed to being at the forefront of dynamic solutions that deliver accurate data, whilst saving time and money for clients.”

A good example of this is the company’s IMDEX Downhole Navigation solution, according to Carey.

The company said of this solution: “As pioneers in downhole navigation, IMDEX has further enhanced its solution to support clients’ complete downhole needs. The latest integration of IMDEXHUB-IQ™ with Seequent’s Central software (pictured) means clients can now have real-time 3D visualisation of the drill hole.”

IMDEX Chief Geoscientist, Dave Lawie, said: “Increasingly, geologists are wanting to make decisions in real-time, however, they need to have the right live data available. We’re excited to be part of this industry-first to deliver real-time 3D data, which will dramatically improve the speed and accuracy of decision-making for drilling projects.”

The company’s REFLEXGYRO SPRINT-IQ™, officially launched at last year’s PDAC event, also integrates with IMDEXHUB-IQ™ and Seequent’s Central software. This technology surveys three times faster and two times more accurately than traditional gyros, according to the company, and can survey holes at any angle and operate in single, multi-shot and continuous modes.