Africa Mining Insight March-April 2023

Page 14

www.africamininginsight.co.za AF RI CA MI NI NG I NS I GHT Pg34 Pg06 24 COVER Pg26 Africa’sOwn MiningJournal March-April2023>Issue2.Vol#5 Drone Magnetometry And Geophysical Methods For Mining Exploration Radiation Risk, Safety and Security in Wireline Logging Benefits of Clamp-on flow metering in Mining and Metallurgical Operations SONIC DRILLING SERVICE PROVIDER

COBRE PANAMA OPERATE LIEBHERR T284 UNITS ON CLAYCRETE HAUL ROADS

APART FROM ROADS CLAYCRETE HAS MANY OTHER APPLICATIONS WHICH INCLUDE:

· POTHOLES - One litre of CLAYCRETE will treat 5 cubic meters of Road Material.

· GRAIN STAGE – Whether it is open air or emergency storage having a proper floor CLAYCRETE allows you to keep more product and lose less. Claycrete is environmentally safe and will not contaminate the food product.

· STRUCTURAL FLOORS – CLAYCRETE will stabilize the ground that your foundaons will o on. This leads to less issues around the foundaon s elingeducing foundadaonacking.

· AIR STRIPS & HELIPADS – CLAYCRETE drama ally reduce dust and leave a smooth surface eradicang “Bown Outs”

· FLOCCULANT FOR TAILING PONDS – When CLAYCRETE bonds with free clay parcles th y take on hydrophobic properes. These n w water repellent prroperes helpo rapidly separate any water from the treated materials.

· DAMS, DIKES & LEVEES – Small leaks lead to big leaks and big leaks lead to failure. Stop leaks in the first place and keep water at bay with CLAYCRETE.

Jack James CLAYCRETE Johannesburg - Email: jack@claycreteglobal.com (Johannesburg South Africa) – Mobile Number: +27 (0) 796175328 Brian JackmanCLAYCRETE Global – Email: info@claycreteglobal.com www.claycreteglobal.com ► ► ► ► ► ► Contact scan for web

GeoGroup Cover www.geogroup.co.za

EDITOR

Goodwill Sibanda editor@africamininginsight.co.za

WRITER Kennedy Chamu writer@africamininginsight.co.za

SALES

Leon Jaure leon@africamininginsight.co.za

Cleopas Moyo cleopas@africamininginsight.co.za

Emmanuel Chipeta emmanuel@africamininginsight.co.za

Godrick Jere godrick@africamininginsight.co.za

Roslyne Mangena roslyne@africamininginsight.co.za

Design and Layout

Qhawe Maphosa design@africamininginsight.co.za

Subscripon

Thatho Ndlovu subscripon@ fricamininginsight.co.za

General info@africamininginsight.co.za sales@africamininginsight.co.za

Call: +27 11 0257 031

+27 67 7677 393 www.africamininginsight.co.za

There is absolutely no doubt that the growing applicaon of digital soluons is the right answer to many of the challenges facing the mining industry.

Advanced digital technologies, whether arficial intelligence (AI), machine learning or robocs, can potenally disrupt convenonal mining operaons in a posive manner.

Mining is crucial to retrieving the ores and minerals that keep important industries running smoothly, but retrieving those products isn't always simple or straighorward. Mining innovaons do more than increase efficiency; they also protect workers and ensure consistent yield that supports further mining exploraons.

In a volale market, you need to ensure your mining operaons perform as efficiently as possible to be successful, you need a strategy that spans your global porolio across the asset lifecycle. This means managing your assets in a safe and secure way, maximising producon and increasing profitability

Digital technology can help you unite, analyse, and manage your engineering data, processes, and supply chain in an intelligent and efficient way. It can also help you operate with the highest levels of corporate social responsibility

As important as on-site technologies are, entering mining efforts with a plan in hand minimizes issues and maximizes targeng for rich ore and lucrave veins. 3-D mapping helps the enrety of the mining team - from administrators to miners - get on the same page instantly. By highlighng the most promising areas for excavaon before the machinery is ever powered up, resources are intelligently used to zero in on the best mining areas in the least amount of me.

In this issue Radiaon Risk, Safety and Security in Wireline Logging, HVI cable fault locang, Geogroup: sonic drilling service provider, Benefits of Clamp-on flow metering in Mining and Metallurgical Operaons, Drone magnetometry and geophysical methods for mining exploraon and much more.

Africa Mining Insight is an informave source for C-suite, heads and managers of mine operaons, METS and support services from top enterprises around the globe to define the current and future mining landscape, including discovering the latest innovaons and technologies that are spearheading mine producvity, efficiency and safety

Best regards

Goodwill Sibanda

Disclaimer: All material is strictly copyright. The magazine or any part thereof may not be reproduced or adapted without writen permission from the publisher: - Africa Mining Insight welcomes material submied for publicaon but retains the right to edit copy. The views expressed in the publicaon are not considered those of the publisher, which accepts no liability of any nature arising out of or in connecon with the contents of this magazine. While every effort has been taken in compiling this publicaon, the publisher does not give warranty as to the completeness or accuracy of its content. The publisher and the editor cannot accept responsibility for any loss inconvenience & damage that may occur there from.

www.africamininginsight.co.za

Editor’s Note
04
.africamininginsight.co.za Pg34 Pg06 24 COVER Pg26 Africa’sOwn MiningJournal March April2023>Issue Vol#5 Drone Magnetometry And Geophysical Methods For Mining Exploration Radiation Risk Safety and Security in Wireline Logging Benefits of Clamp-on flow metering in Mining and Metallurgical Operations SONIC DRILLING SERVICE PROVIDER

CONTENTS

WIRELINE LOGGING

CABLE FAULT LOCATING ÇLEAN-IN-PLACE ELECTROWINNING

GEOSYNTHETICS IN MINING WORKS

DISTRIBUTOR FOR MINING PARTS

WATER-BASED LUBRICANTS

SONIC DRILLING SERVICE PROVIDER

BENEFITS OF CLAMP-ON FLOW METERING I

TAILINGS RECOVERY SYSTEM

NILFISK/WAP PRESSURE WASHERS

METHODS FOR MINING EXPLORATION

MINES AND MONEY CONNECT

MINING ENGINEERING

PAGE 06

PAGE 10

PAGE 14

PAGE 16

PAGE 19

PAGE 22

PAGE 24

PAGE 26

PAGE 28

PAGE 30

PAGE 34

PAGE 36

PAGE 40

www.africamininginsight.co.za

/APRIL 2023
MARCH
05
The Premier Distributor for Mining Parts P19 Cable fault locating P10 Wireline Logging p06 Benefits of Clamp-on flow metering p26 Drone magnetometry & geophysical methods P34
06 www.africamininginsight.co.za
www.africamininginsight.co.za 07

www.trentyre.co.zw

Çlean-in-Place Electrowinning

Çlean-in-Place Electrowinning. It's a concept that when you see it in acon seems obvious. But for years the process used in ADR plant goldrooms in gold mines around the world, has involved the removal of individual cathodes from the electrowinning cell by means of overhead gantry to a dedicated wash-bay for recovery of gold sludges.

“It's me consuming, ergonomically demanding on operators and fraught with the potenal for gold sludges loses to the goldroom floor” says Sean Galvin, Engineering Manager at Cadia Systems – a Perth based mining equipment manufacturer.

Mr. Galvin was, for over a decade, formerly manager and designer at the Equipment Division of Como Engineers – another Perth based Engineering Consultancy and Equipment manufacturer. Having been responsible for design and commissioning of goldroom equipment and modular eluon systems worldwide, he first hand experienced the short comings of cell cleaning - even on the electrowinning cell designs he had been responsible for

Issues common in goldroom cell cleaning acvies include dealing with heavy lids requiring either counter balances for winches to li open, slow movement of overhead gantry cranes when relocang cathodes or anodes, heavy cathodes which were oen man handled in and out during cleaning processes, and problemac connecons of

cathodes and anodes to the main busbars.

“I remember commissioning a system for Metso in Finland in 2011 on Christmas day” he states, “they were 800 sized cathodes with 40 cathodes over two split cell designs.”

“Aer moving the first few to the wash-bay using the overhead monorail I just gave up”

Mr Galvin instead proceeded manually hauling the cathodes out of the cell one by one and laying them on top of the remaining anodes and cathodes in the cell. “That was my version of clean-on-top of cell”, he laughs. Cadia Systems specialises in the development of innovave technologies for the gold processing industry. The business has a strong focus on cleanroom style technologies that bring safety improvements for operators. The equipment also has a clear design focus on improving recoveries and opmising performance.

Their proprietary protected EC Clean-in-Place Electrowinning Cell was developed a year aer Mr Galvin started Cadia Systems.

Ulising a novel automated liing mechanism, the cell lis the anodes and cathodes away from the main connecng busbar connecons, allowing the anodes and cathodes to be slid one by one across the cell to provide access to the cathode face for insitu, in-cell washing.

An addional clever addion to the cell designs include a near neutral-pivot, low

weight/high rigidity cell lid. The lid simply slides back with a minimal operator pressure to the front of the lid. For larger cells, which can be as large as 1200mm cathodes in size, the lids are also available with automated opening and closing.

The cells also have front mounted busbars that are located out of the vapour zone to minimise corrosion from ammonia fumes. The busbar contains stud connecons which provide ght inter-busbar connecon ghtness to avoid hot-spot connecons. So no more losing those pesky nuts. A guard protects the busbars when in operaon, but also forms part of an inbuilt keyed locking mechanism for security of the precious metals while in operaon. Anodes are manufactured to provide longer design lifeme, and cathodes can accommodate either mild steel or stainless mesh or more common pre-made pillows.

“The product has really been a great success with clients!” says Mr Galvin, “Goldroom operators love them and site management love the enhanced safety and recovery aspects”.

Cadia Systems has also entered a collaborave arrangement with Gekko Systems for the design and supply of modular eluon systems using Cadia's equipment and design experience and Gekko's world-class engineering, manufacturing and support services.

14 www.africamininginsight.co.za
Mining-Solutions

Geosynthetics in mining works

The use of geosynthecs in mining operaons grows annually as mining companies focus on the technical and economic advantages of geosynthecs. In this regard, Naue can

· support the economic extracon of valuable resources in heap leaching,

· offer engineering soluons for mine waste and water management in tailings facilies,

· provide sealing, drainage, filtraon or separaon materials for all kinds of ponds or mine remediaon of old mining operaons,

· deliver reinforcement and stabilisaon products and systems for embankments, haul and access roads or steep slopes and walls.

This means that our polymeric materials enable more efficient barriers, stronger access roads, space-saving and safety-enhancing retaining structures and much more. But mining projects are oen sensive to the environment and are located in remote areas. Therefore, our geosynthecs can not only offer cost and me savings but also reduce the environmental impact (carbon footprint, energy consumpon) on most projects involving geotechnical work compared to convenonal methods.

® Our HDPE geomembranes Naue Carbofol are extremely durable with a great cost-benefit rao. And in parallel, they are an important line of defence to protect the environment. The applicaon of our reinforcement and stabilisaon ® ® products Naue Secugrid and Naue Combigrid results in a reduced need for quality engineered fill material for sub-base reinforcement. Our ® geosynthec clay liner Naue Bentofix or ® mulcomponent GCL Bentofix X can replace clay In both cases, the transport costs to the site will be

reduced, and the speed of construcon will be increased. To sum up, the costs of construcon materials such as aggregates or concrete, construcon me and environmental impact will be reduced significantly

You can use our geosynthecs individually or combined as an intelligent system soluon. They are built to last for long-term usage when properly designed and installed. Naue can provide

· engineering, specificaon and design support,

· soware tools (for base courses, slopes and walls or working plaorms),

· tesng (e.g., shear box tesng, leachate tesng),

· training and supervision,

· installaon.

Design and specificaon of the soluon should be carried out as early as possible within the scheme's development and guided by appropriate ground invesgaon.

For example, heap leaching. Without queson, heap leach has become an enormous driver of the growth of mining operaons wordwide. 25 years ago, only about 3% of copper and gold supplies were produced through heap leaching. Today, the volume surpasses 30% annually. Valuable chalcopyrite copper, previously not considered economical in heap leach development, is now heap leached, as is nickel laterite, uranium, and even rare earths. Heap leach stacks can be up to 200m, as operaons look to prove site yield more quickly. Heap leaching accomplishes this – but only with the containment support of geosynthecs.

Geomembranes and geosynthec clay liners (GCLs) are used in lining system soluons as heap leach pad liners, pregnant soluon trench liners,

processing pits, onsite water storage, “raincoat” covers over ore stacks to shed stormwater – rather than dilute the leach heap soluon – and onsite wastewater management. Geomembranes are not all that mining sites require. Nonwoven geotexles provide long-term, robust protecon of and friconal stability for geomembranes on difficult terrain and in tall ore stack scenarios.

The second example is TSF. When an ore's valuable deposit is extracted, what remains of the ore is waste. Oen, it is a high percentage of the ore handled at the mine. Potenally contaminated from the extracon process or containing environmentally harmful components, tailings must be isolated to prevent long-term environmental damage. As mine sites increase in size, the engineering needed to properly contain the volume of tailings has intensified. This scaling up of containment frequently requires not just lining systems but reinforcement and sealing systems for perimeter berms on tailings pond. Weaker, earthen-only berms are at risk of saturaon, erosion and failure.

Furthermore, the increasing depth of tailings storage ponds requires a stronger containment engineering design. With the environmental security of the site relying on these environmental protecon systems, the geosynthecs selected must be trusted. Here, geosynthec soluons ® include our HDPE geomembrane Carbofol , our GCLs Bentofix and Bentofix X, our nonwoven ® geotexle Secutex and our reinforcing geogrids ® ® Secugrid and Combigrid

Naue has more than 50 years of experience in geosynthecs development, producon and installaon. We can be your single point of contact to find a proper soluon for your geotechnical challenges in your mining projects.

Mining-Tech 16
www.africamininginsight.co.za

Water-based lubricants for both optical bers and electrical cables

Who we are

Carima is a leading company on the European market in the producon and formulaon of water-based lubricants, for the installaon of opcal fibers and electrical cables.

Carima is a chemical company located in Gessate, near Milan (Italy), which has always tried to sasfy its customers with innovave products and short delivery mes, in a connuous process of quality assessment and improvement.

Our philosophy

We support our customers by producing various types of lubricants that meet the working methods of each installer. For example, if a technician has always worked with a gel lubricant, Carima will make sure to provide him with the most correct gel for his needs. We don't want to change the habits of technical installers, on the contrary we want to help them in their daily acvies. We can offer an opmal soluon for every request. All our products are Made in Italy and, through a qualified industrial process, they are a guarantee of opmal performances in all sectors: industrial, civil and construcon. Sll with regard to our awareness of the environment that surrounds us, we take all the energy we need from the sun; numerous photovoltaic panels have been installed on our roofs in order to give energy to our daily work.

We also care a lot about the environment: that's why all our products are water-based and do not contain petroleum derivaves. Furthermore, all the electricity that CARIMA needs comes from the sun. For transparency,

the producon data of our photovoltaic system is updated in real me every 15 minutes on our website at the link hp://fv.carima.biz.

Carima produces and sells different products: Slips and lubricants

Specific slips and lubricants for laying electric cables and opcal fibers such as GLISS® F, GLISS® GEL, GLISS® W, or S LUB 20, S LUB 100XL, etc. They allow to reduce the fricon generated during installaon operaons of cables and fibers in pipelines

Electrical insulaon products

Mono and bi-component products for electrical insulaon, such as SOFT SIL GEL 32, SOFT GUM, etc.

Solvents and cleaners

Solvents and detergents for removing plugging grease (jelly) from cables and for cleaning the fibers before splicing, such as FO Cleaner, Biosol 19

Spray Products

Technical spray products and water-based marking paints for usual work operaons, such as IDRO SPRAY, etc.

Accessories

Various accessories for a beer and simpler use and applicaon of our products, such as Duct Cleaner, ICE Melng, Mass effect etc…

Special Products

Chemical products developed, produced and sold by us for special needs, Green Glass, solar and photovoltaic panel cleaner, silicone and PAG-based greases, etc.

Why so many products?

Why do you need so many different types of slips and lubricants to solve a seemingly simple problem?

The answer is simple and precise Carima is able to offer the best soluons for every need. To do this, it supports the customer by producing various types of products to sasfy the "modus operandi" of each installer

So if a technician has always worked with a gel product, Carima will certainly have the right gel product in its wide range for him. Carima does not want to change the installaon technician's work habits, but to help him in his daily acvies.

Packagings

The producon lines are able to package the various products from the 100ml tube, up to the 1000kg IBC, passing through 500ml and 1lt boles, 5, 10, 20 and 25 liter tanks and buckets also including 50 liter drums, 100 and 200lt.

Special packaging requested by customers is possible.

22 Mining- Solutions
www.africamininginsight.co.za

Carima

Manufacturer of “Made in Italy” lubricants and anti-friction

fibre
cables
agents for
optic
and power cables.
European
lubricants,
bers and electrical
OUR PRODUCTS INCLUDE: SLIPS AND LUBRICANTS GLISS F GLISS GEL GLISS W S LUB 20 S LUB 100XL ELECTRICAL INSULATION PRODUCTS SOFT SIL GEL 32 SOFT GUM SOLVENTS AND CLEANERS FO CLEANER BIOSOL 19 SPRAY PRODUCTS IDRO SPRAY ACCESSORIES Duct Cleaner Ice Melting Mass Effect SPECIAL PRODUCTS Silicone PAG-based greases www.carima.biz. email: carima@carima.biz Tel: +39 (0)2 9538 4225 Cerficaons CARIMA is an ISO 9001 cerfied company We have biodegradable and IEEE 1210 cerfied products scan for web ® ® ®
is a leading company on the
market in the production and formulation of water-based
for the installation of optical
cables.

GEOGROUP: SONIC DRILLING SERVICE PROVIDER

Over the years, sonic drilling has connued to evolve, with improvements in vibraon frequency, power output, and drill bit design. Today, sonic drilling is a widely used technique for a range of drilling applicaons, from mineral exploraon and geotechnical surveys to environmental monitoring and geothermal energy producon Its advantages over convenonal drilling methods include faster drilling rates, reduced waste material, and beercorerecoveryrates.

Sonic drilling is parcularly effecve in soer materials such as clay and sand, which can be difficult to drill using tradional rotary core drilling methods. The sonic drill head allows the soil sample to enter the single tube core barrel by liquefying the ground on the sidewall ofthesampleenteringthecorebarrel,without disturbing the sample, thus providing very good core recoveries in the soer more friable ground in which is tradionally more difficult to provide good core samples Sample

24 www.africamininginsight.co.za
Mining- Solutions

recoveries using sonic technology are usually over95%.

To date, the GeoGroup is a preferred supplier of sonic drilling services to the African connent.Outofthe3Sonicrigsintheirfleet,2 of these rigs are equipped with dual head masts able to switch between sonic and rotary core drilling. This eliminates the need to have mulple rigs on site as the mast head can quickly transion between Sonic and Rotary core.

The GeoGroup recently introduced the Secon Compact Sonic Crawler 190kN to their porolio which can be operated remotely by two drill operators with wireless controllers. Using a wireless control system to operate a drill has several advantages over tradional wired controls. Here are some reasons why wirelesscontrolmaybepreferred:

1

Mobility and flexibility:With a wireless control system, the operator can move around the drilling site more freely, without being tetheredtoacontrolpanelorconsole.Thiscan be parcularly useful in drilling projects where the operator needs to move around the rig to access different drilling locaons or perform othertasks.

2

Increased safety: By eliminang the need for cables and wires, wireless control systems can reduce the risk of accidents and injuries caused by tripping over cablesorgengtangledinwires.Thiscan be especially important in drilling projectswheresafetyisatoppriority.

3 .

Improved efficiency: With a wireless control system, the operator can control

Geogroup: sonic drilling service provider

the drill from a distance, which can be more efficient and faster than manually adjusng controls at the drill site. Addionally, some wireless control systems offer advanced features such as automaon and remote monitoring, which can further improve efficiency and producvity

Overall, sonic drilling is a versale drilling methodthatcanbeusedinawiderangeofsoil and rock formaons. Its efficiency makes it a popularchoiceformanydrillingprojects.

The Geogroup has 10 years of extensive experience in sonic drilling for various esteemed clients in the mining and geotechnical industries since our first sonic waspurchasedin2013.

For more informaon about GeoGroup, visit www geogroup.co.za.

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www.africamininginsight.co.za

Benefits of Clamp-on flow metering in Mining and Metallurgical Operations

Clamp-on flow measurement using the ultrasonic transit me technique has matured and is now a preferable technology for control and monitoring in many metallurgical and mining applicaons. In general, if any two of the following are present then Ultrasonic Clamp On (USCO) should be considered or even preferred.

We at Flexim, as the leader in this field has seen an increase in requests parcularly in the following areas:

Water monitoring and stewardship

Mines and minerals use water in various ways, from high pressure hydro power lines

in underground mines to drive drilling equipment, to a solvent in hydrometallurgical operaons to dust suppression, the common denominator is a requirement to responsibly and efficiently use and account for the water to do the least harm to the environment and nearby communies. Flexim's rugged portable meters are ideal for audits and reporng while the fixed meters are in many cases beer suited than the tradional mag meter

SO Abatement 2

Sulphuric acid producon as a method to reduce SO emissions is increasingly 2

becoming a preferred route to reduce this pollutant. The benefits are no addional waste streams, a saleable product and, depending on the technology, low addional water and other input requirements. A unique feature of metallurgical SO fed 2 Sulphuric acid plants is the fluctuaon of the feed SO concentraons and the resulng 2 affect it has on the stable operaon of the plant. Flexim meters are an ideal soluon as they can be retrofied with no shutdown (no fines or risk to equipment during start up) give both flow and concentraon measurement and work on both metal and GRP pipes. “We have recently installed meters on plants in Zambia, the DRC, South

26 www.africamininginsight.co.za Mining-Tech

Africa and Namibia”, says Mark Middelhoven the Africa Sales Manager, and all our customers have seen improvement in their plant performance.

Solvent Extracon

SX circuits both water and hydrocarbon mediums and USCO is a good measurement technique as it can measure both phases. Typically these are installed on the organic side, recently Flexim has been involved in a project to provide metering on SX cells as part of an automaon project. Previously this had been done by manually adjusng the valves, but as the trend to more automaon

and reduced personnel connues the need to automaon and the benefits of beer control and efficiency the scope and usefulness of USCO is a key enabler

Energy efficiency

As the world moves towards a Net Zero future mining is key both in reducing its carbon emissions but also providing the raw materials for baeries, electrical infrastructure and catalysts for hydrogen producon. It is not surprise then the mines are invesng in improving their energy efficiency. Flexim again can help whether it is measuring steam in the processing plants or

compressed air, addional metering points can be safely added hassle free.

One aspect holding back the adopon of Clamp-on is previous bad experience, either through cheap portables or incorrect specificaon. Since the meters are able to be installed outside the pipe, with no interrupon, it is easy to de-risk the decision through a trial or demonstraon. At Flexim we are happy to stand behind our product and a try before you buy approach is usually enough to convince scepcal stakeholders. The technology has matured and should be the first choice of technology in many instances.

27
Benefits of Clamp-on flow metering in Mining and Metallurgical Operaons www.africamininginsight.co.za

TAILINGS RECOVERY SYSTEM (TRS)

The Tailings Recovery System (TRS) is a technology developed specifically for recovering tailings from mine tailings pond deposits, to facilitate tailings pond reclaim operaons and management of tailings storage facilies within an operang mine site. TRS can also be ulized for the remediaon of legacy tailings ponds, and reprocessing mine tailings to extract valuable minerals.

TRS has been developed by Technika Engineering Ltd., a company based in Calgary, AB, Canada.

TRS effecvely addresses the operang limitaons of the technologies tradionally ulized for mine tailings reclaim operaons, including CSD dredges and submersible pumps. The limitaons of these technologies include inconsistent tailings supply density and the need for frequent relocaon on the pond. Dredging causes high turbidity of the pond surface water, which is oen reclaimed

for the process requirements. Dredges and pumps are suscepble to plugging by various debris that is commonly found in tailings deposits.

Dredging is a crewed operaon requiring people to be deployed on the pond, and may also be affected by seasonal weather condions.

TRS technology is an unmanned, remotely controlled operaon. Its control can be effecvely integrated into the overall control system of the tailings treatment facilies, which enables the supply of tailings at a density and flow rate that is opmum for the performance of the tailings treatment processes.

TRS can operate from a single locaon for an extended period of me without a need to relocate.

TRS operaon is based on a balance of parameters that include its geometry, tailings rheology and recovery rate. The operaon of the technology is based on the principles of the hydraulic pressure balance within the tailings pond deposits and the TRS caisson structure. The operang interface between TRS and tailings deposits effecvely mobilizes the tailings within the pond deposits creang the tailings draw zone. The mobilized tailings are brought to the surface within the TRS caisson envelope.

The tailings of the required density are

accessible from the surface for collecng and transport to the shore-based facilies.

The TRS caisson typically comprises two telescoping shells that allow easy adjustment of the pumping depth. The telescoping shells can be elevated to facilitate the system's launching, deployment, and relocaon.

The TRS assembly is of a modular design. The modules, which are designed to fit shipping envelopes, facilitate transportaon and minimize me to assemble the system onsite. This also enables easy relocaons between different tailings ponds or the mine sites.

An inial set of TRS units was developed by the Technika Engineering team and successfully deployed in large-scale tailings recovery operaons in the Canadian oil sands industry

The Company is now looking for opportunies to expand into other mining areas where the TRS technology can provide a valuable contribuon to mine tailings reclaim and tailings management operaons.

The TRS technology is patented and proprietary to Technika Engineering Ltd. For addional informaon, please visit hps://wwwtechnikaeng.com/technology/tailings-recoverysystem-trs.html

contact@technika-eng.com

Mining- Solutions
28 www.africamininginsight.co.za

Nilfisk/WAP Pressure Washers at a Glance

At Nilfisk, we have a clear mission that drives our dedicaon in what we do: we enable sustainable cleaning worldwide to improve quality of life. For more than a 100 years, we have been commied to making the world a cleaner place. Nilfisk South Africa markets a wide range of pressure washers for a number of applicaons.

Pressure washers are the most effecve way to clean outdoors and are extremely easy to use: connect the device to the water supply and power outlet, turn on the tap, switch on the pressure washer and let the cleaning begin! With added accessories, the devices are transformed into real all-rounders, the applicaon possibilies are virtually unlimited. Typical areas of usage for the machines include cleaning applicaons in the agricultural, construcon, earth moving field, mining and heavy engineering industries. Nilfisk boast the most comprehensive range of pressure washers, namely the MC range, the MH range and the WAP range. The local range consists of the Novastar, Powerstar, Jetstar, Topstar, Centra, Electra and HPU which are medium and heavy duty pressure washers. Outside of this range we also manufacture purpose built units specific to applicaon. Although many applicaons

require portable units, we also produce staonary units for wash bay and other similar applicaons.

The WAP range both mobile and staonary have their components mounted on a sturdy steel base frame, protected by a steel impact protecon cage. The high pressure pump is directly coupled to a standard speed electric motor. The machines have a sturdy steel chassis with roll cage for maximum component protecon, as well as easy loading and off-loading. Operaon of all the machines is controlled from a “trigger” type safety spray lance.

The Nilfisk MH series takes mid-range hot water high pressure washers to a new level. As the powerful engines provide pump pressures of up to 220 Bar, and the improved EcoPower boiler system offers high efficiency whilst saving both the environment and fuel costs - leaving our customers with an improved total cost of ownership. These high pressure washers are developed for our customers within agriculture, automove, light industry, trade and building and construcon. These businesses, with many daily cleaning tasks, will benefit from the highly improved and best-in-class mobile design enabling them to transport and move

the machines around their facilies and giving them the mobility to work anywhere. From light industrial cleaning tasks to slightly heavier cleaning applicaons in rough environments, baling anything from mud, animal manure to road dirt, oils and greases. The Nilfisk MC range of compact cold water high pressure washers offers customers the benefits of reduced running costs, greater cleaning efficiency and easier overall handling for general everyday cleaning tasks. They offer superior cleaning results, saved me and lower costs.

With the MC range, Nilfisk is introducing three major improvements to the high pressure cold water range: Detergents are now supplied more effecvely through a new separate foam sprayer system. At the same me, a new patented spray gun holder adds convenience together with a new turnable cable hook. They are the ideal choice for small building companies, light agriculture such as small crop and milk farms. The choice of “the correct” pressure washer unit is always determined by the applicaon, availability of power and water, as well as frequency of cleaning required.

Wendy.mcdermo@nilfisk.com

Mining- Tech 30 www.africamininginsight.co.za

Drone magnetometry and geophysical methods for mining exploration

When we talk about magnetometry with drones, we must consider the challenges presented by the applicaon of this geophysical method. When mounng a magnetometer on a drone, either total range or fluxgate, we find electrical components, magnec materials, even the movement of the drone motors, which generate magnec acvity that can easily cause alteraons in the acquision of data, prevenng accurate and useful results for the regional characterizaon of mineral resources.

The search for minerals with high magnete content such as iron or nickel, are the ideal scenario for this type of applicaons, however, the search for high value nonmagnec minerals such as gold and silver, find great benefits through the applicaon of geophysical methods such as magnetometry with drones.

Therefore, our applicaon for the mining sector focuses on the regional characterizaon of magnec acvity, this means that we generate maps of magnec acvity of large extensions, adapng to the topography of the terrain and allowing its correct measurement despite topographic changes, at mid-en high altudes flights, and obtaining more accurate readings for its interpretaon; a maer in which most of the magnetometers that currently exist in the market are more limited. In this way we generate informaon that allows us to make a punctual exploraon planning, in a short period of me and with completely accessible costs.

Currently, we can inspect up to 600 hectares per day with a single operaon team and its processing and interpretaon, in addion, with our data cleaning soware we can deliver results in a maer of days. To date, AV3 AEROVISUAL has taken this soluon to different parts of Mexico and Lan America, having generated maps of magnec acvity over surfaces of thousands of hectares in

· Dronesandcustomizedfluxgatemagnetometersforaerialdataacquision.

· Aerialinspeconwithdronesforlargeextensionsoflandanddifficultaccessareas.

· Reliableresults,inlessmeandatahighlycompevecost.

extension.

Magnetometry survey with drones is a disrupve soluon with great economic benefits for the mining sector since, once the area of interest has been determined, it is possible to densify the data grids to collect magnetometric informaon with more

www.africamininginsight.co.za

definion to further delimit the exploraon area or even, to apply other complementary geophysical methods such as AMT (audio magneto-telluric) soundings and gravimetry, to obtain greater certainty of the viable zones for exploraon and extracon of resources, besides giving the possibility of generang

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robust and reliable models for the planning and definion of zones of interest.

AV-MAG℠, OUR DRONE MAGNETOMETRY SOLUTION FOR MINING

To solve the challenges posed by the applicaon of this geophysical method, since 2014 in AV3 AEROVISUAL the design and manufacture of the equipment we use today was carried out through the Naonal Autonomous University of Mexico and the "Laboratory for Electromagnec Innovaons" of Ukraine, specialized in the manufacture of magnetometers and electronics for satellites. Currently, we have developed two versions of fluxgate magnetometers with the capacity to perform independent measurements in the 3 components (X, Y and Z) in addion to measuring their geoposioning, date, me, inclinaon and other essenal measurements for a correct interpretaon of data. Likewise, these equipment have a design that eliminates the magnec interference that the drone generates on them. To ensure the inclinaon and posion of the magnetometer during the flight, a non-magnec stabilizer was designed and implemented that allows us to move the magnetometer up to 3 meters away from the drone; this stabilizer allows us to keep the sensor vercal with respect to the ground, in this way the wind tracon and drag by the movement of the drone during the flight, does not generate loss or need to remove data not useful for interpretaon, resulng in reliable informaon of great value for decision making.

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Drone magnetometry and geophysical methods for mining exploraon

Mines and Money Connect

Europe's premier mining investment event, connecng miners with money and investors with opportunity

Long Event Descripon:

Mines and Money Connect returns to London for the second year running aer high demand, providing a space for global mining leaders to connect with acve investors, soluon providers and innovators.

From 25 - 26 April 2023, the event will bring together 700+ aendees, including 80+ mining companies, and 400+ investors, for two days of unparalleled networking, high-class content and deal-making.

This event aims to shape the investment landscape in mining for 2023 and beyond. CEOs from junior mining corporates will join investors in face-to-face meengs to share their latest projects, highlighng key reasons to invest. See who is exhibing here

The 70+ speakers will talk in various formats from inmate fireside chats, to project spotlights, mining pitch bales and panel sessions. Expect to take away aconable insights you can deliver to your team to help deliver your business objecves. The key topics covered throughout the two-day program include what's next for the energy transion, government policy on crical minerals and implicaons for the mining field, new thinking in ECG, and sustainability and metal prices in 2023. View the program speakers here and .

Across two days, there are thousands of opportunies to network, brainstorm, and share knowledge, providing the perfect plaorm to obtain invaluable new business contacts, connect with the industry's leading figureheads and explore new ideas.

Meengs are at the heart of what we do. To ensure your me is maximised onsite, there is an AI-driven meeng planner, allowing you to pre-schedule all of your meengs, depending on your needs. Find out more here

There are a number of ways to get involved with Mines and Money Connect. Contact a member of the team at to connect@minesandmoney.com discuss your parcipaon or register for your pass here

For more informaon on the event, visit the event website here or contact connect@minesandmoney.com

Quick reference links and informaon

Dates: 25 – 26 April 2023

Locaon: County Hall, London, SE1

Website: Minesandmoney.com/connect

Ticket Link:

hps://minesandmoney.com/connect/register

Email: connect@minesandmoney.com

LinkedIn: hps://www.linkedin.com/company/mines-andmoney/

Twier: hps://twier.com/minesandmoney

YouTube: hps://wwwyoutube.com/c/minesandmoney

Facebook: hps://wwwfacebook.com/minesandmoney/

Short Event Descripon:

Mines and Money Connect returns to London for the second year running aer high demand, providing a space for global mining leaders to connect with acve investors, soluon providers and innovators.

From 25 - 26 April 2023, the event will bring together 700+ aendees, including 80+ mining companies, and 400+ investors, for two days of unparalleled networking, high-class content and deal-making.

This event aims to shape the investment landscape in mining for 2023 and beyond. CEOs from junior mining corporates will join investors in face-to-face meengs to share their latest projects, highlighng key reasons to invest. See who is exhibing here There are a number of ways to get involved with Mines and Money Connect. Contact a member of the team at to connect@minesandmoney.com discuss your parcipaon or register for your pass here

Plain Text Event Descripon:

Mines and Money Connect returns to London for the second year running aer high demand, providing a space for global mining leaders to connect with acve investors, soluon providers and innovators.

From 25 - 26 April 2023, the event will bring together 700+ aendees, including 80+ mining companies, and 400+ investors, for two days of unparalleled networking, high-class content and deal-making.

This event aims to shape the investment landscape in mining for 2023 and beyond. CEOs from junior mining corporates will join investors in face-to-face meengs to share their latest projects, highlighng key reasons to invest.

The 70+ speakers will talk in various formats from inmate fireside chats to project spotlights, mining pitch bales and panel sessions. Expect to take away aconable insights you can deliver to your team to help deliver your business objecves. The key topics covered throughout the two-day program include what's next for the energy transion, government policy on crical minerals and implicaons for the mining field, new thinking in ECG, and sustainability and metal prices in 2023. Across two days, there are thousands of opportunies to network, brainstorm, and share knowledge, providing the perfect plaorm to obtain invaluable new business contacts, connect with the industry's leading figureheads and explore new ideas.

Meengs are at the heart of what we do. To ensure your me is maximised onsite, there is an AI-driven meeng planner, allowing you to pre-schedule all of your meengs, depending on your needs.

There are a number of ways to get involved with Mines and Money Connect. Contact a member of the team at connect@minesandmoney.com to discuss your parcipaon.

www.africamininginsight.co.za

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Mining Engineering

Mining engineers design safe and efficient mines for removing coal and metals. Mining engineers opmize mines for removing resources in the most efficient manner possible. They ensure that the as much of the resource as possible is extracted.

Mining engineers oen specialize in a parcular mineral or metal, such as iron or coal. Some collaborate with geologists to find and evaluate new ore deposits. Others develop or improve mining equipment, or manage processing operaons that separate and refine minerals. Mining safety engineers implement best pracces, conduct mine and equipment inspecons, monitor air quality, and ensure compliance with all safety regulaons to keep workers safe.

With the process of mineral extracon, some amount of waste and uneconomic material are generated which are the primary source of polluon in the vicinity of mines. Mining acvies by their nature cause a disturbance of the natural environment in and around which the minerals are located. Mining engineers must therefore be concerned not only with the producon and processing of mineral commodies, but also with the migaon of damage to the environment

both during and aer mining as a result of the change in the mining area.

Mining engineers plan and direct the various engineering aspects of extracng minerals from the earth. They prepare inial plans for the type, size, locaon and construcon of open pit or underground mines

Mining Engineer - Open Pit .

Mining Engineers working in open pits are involved with both long and short term open pit mine planning, mine design scheduling and budgeng, strategic planning, supervision of technical and operang staff, mine management. They are also involved with feasibility studies, drilling and blasng supervision, operaon of mining systems, evaluaon of open pit mining equipment, mining contract development.

Mining Engineer - Underground

Underground Mining Engineers can be involved with coordinang mining acvies, maintenance scheduling for all equipment, short/ long term mine planning, scheduling and design. They supervise staff and are involved with feasibility studies, mining

contract development, design operaon and maintenance of underground mining equipment.

Mining Engineer – Coal

Coal mines can be open pit or underground and tend to use different mining methods. Coal mines can be prone to gas and fire problems. Coal Mining Engineers can be involved with coordinang mining acvies, maintenance scheduling for all equipment, short/long term mine planning, scheduling and design. They supervise staff and are involved with feasibility studies, mining contract development, design operaon and maintenance of mining equipment.

Mining Engineer - Consulng Mining

Engineers who work as consultants are oen involved in a wide variety of projects, mining methods and different technical areas. They use computer programs to model the mining process and design and can work on both open pit and underground developments. Consulng mining engineers will typically be based in coastal cies and fly out to projects and mines as required.

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