Mnm feb mar 2015 website

MINERS NEWS FEBRUARY/MARCH 2015

Magazine

AT PROCET FREIGHT, WE ARE ABOUT PROBLEM SOLVING. WE ARE CONNECTED TO THE RIGHT ABILITIES. For all your Project Cargo movement and consultations, call on PROCET FREIGHT. We move all kinds of break bulk cargo by sea and road into South Africa, Africa and rest of the World.

We also provide services for urgent oversize shipment in Cargo only aircrafts.

PROCET FREIGHT SOUTH AFRICA www.procetfreight.com | info@procetfreight.com Tel: +27 11 975 7414 | Cell: +27 82 967 4303 | Fax: +28 86 682 7108 skype: procetfreight | Facebook:www.facebook.com/procetfreight | Twitter:www.twitter.com/procetfreight

10

PUBLISHED BY: Woota Publishers and Projects Tel: +27 11 483 1583 Fax: +27 86 662 1306 P.O.Box 46593 Orange Grove 2119.

No. 4, Acropolis, 107 Louis Botha, Johannesburg, South Africa.

Email: info@minersmagazine.com Website: www.minersmagazine.com The Publisher does not accept any responsibility for the accuracy or authenticity of the contributions contained in the Magazine and advertisements.

Views expressed by the contributors are not necessarily those of the Publishers. Š All rights reserved

3

Safety And Risk Management In Mining

S

afety and risk management is a strategy that should be considered critically in order to avoid or reduce the unacceptable injuries and fatality rates that occur in the mining industries. Through procedures such as risk background assessment and systematic accident investigation, the origin of a fatal accident in a mining scene can be identified. However, there are guidelines and steps that should be taken into account in order to achieve a safety and risk management in mining.

This is with an aim to secure individual workers during mining activities as well as ensuring safety risk control in case it occurs.

Obviously, every mining industry will always gladly desire a healthier and safer environment for every employee.

Thus, various steps should be undertaken to achieve such an acceptable environment. To begin with, compliance with safety and health standards as well as personal safety policies should be ensured. A mining industry is recommended to comply in every detail of safety standards that is applicable to its area of operation and should as well stick to the state's regulations. Secondly, employees should be well informed of the possible hazards that might take place in the industry they work. Following the identification of the possible hazards to occur, the employees should be informed on how dangerous the hazards can be; they should also be trained on how to protect themselves and what to do in case the hazards occurred.

Mining industries have an obligation to minimize the risks via implementing workplace health programs, ensuring habitual and thorough inspections and safety audits, effective administrative, engineering and work practices, frequent and effective employee 6

training as well as ensuring routine maintenance. Employees should be taught to work safely with training being the most powerful tool. Therefore, training should be ensured in order to deliver the necessary information, skills, techniques and procedures for enough safety. Performance by employees in the mining industry should be monitored to ensure that they follow to the letter the safety instructions delivered to them.

Assumption should not be allowed by the mining industry supervisors for some employees may tend to be ignorant and hence resulting to their personal danger and break down of the entire mining industry.

It is vital to pay attention to suggestions and complaints rising from the employees. Though it is sometimes difficult to make decisions depending on employees' opinions, paying attention to them facilitates their cooperation and compliance to the safety and health programs implemented plus other rules meant to govern them. This also facilitates employee's participation and self-driven safety and safer administrative center. Mining industries should also be careful with how they respond to a safety and risk emergency.

They should be quick and swift in response whenever a health and safety problem is brought to their attention.

This is recommended as it draws a positive message amongst the employees, that the mining industry is concerned about their welfare.

Statistically, it has been observed that there is much difference between how young adults and the elderly adults operate in a mining industry. Young adults operating in a mining industry are prone to mining accidents due to their lack of skills, knowledge and good judgement and impulse control to name a few. They could also be ineffective due to factors such as lack of enough rest as well as tiredness from poor balancing of work performance. As a result of this, it is advisable that a mining industry implement a strategy that can monitor the vulnerable young workers. This is in ways such as ensuring close and effective supervision conducted by critical supervisors.

This way, younger workers can acquire

proper safety orientation, positive feedback through corrections, correct answers from their critical questions. A good supervisor can also help the young workers by recommending them a mentor from the experienced old employees, which will enhance the performance and safety of the young workers while still at a tender age.

With the high technology in the modern time, safety and risk management can be achieved through establishing the use of environmental sensing instruments in mining industry. These include the smart sensor that was developed for mining industry to meet various requirement s in monitoring gases at specific locations. The sensor unit is recommended for its uniqueness in its features, which include localized information display, a cluster that can easily be connected to a fire detection system with reporting and display on SCADA and intrinsically safe certification Exia T4.

While ensuring proper safety and risk management in mining, trauma counseling becomes a significant idea that should not be ignored. This is when the workers in the mining industry have encountered tragedies beyond their control exposing them to traumatic physical and emotional wounds.

Professional councilors are competent to provide counseling that marks recovery of traumatized persons. Such counseling may involve intervention and support strategies such as critical incident stress management, follow-up and support counseling, assessment as well as referrals for therapy.

Rock Fall Protection

R

ock fall protection refers to the act of mitigating rock fall in mines, residential places especially those near mountain regions, roads, hospital and other areas that host living organisms making them vulnerable to harm and destruction leading to their injury or even death.

Rock fall are prevented by use of protective structures which are of different variety that includes: draped mesh, structural walls, slope treatment, catchment ditches, concrete barriers, flexible barriers, attenuators, earthen barriers and anchored nets.

The above mentioned rock fall protective barriers do not stop rocks from falling but rather they prevent them from causing harm to the surrounding habitat, it is of paramount importance to conduct a research before implementing any of the above protective structures by determining some of the factors that are likely to cause the rock fall are some of these factors are: type of soil, topography, slope height, ridges and launch points, these factors affects how rocks fall that is either freely, bouncing or rolling.

Flexible barriers made of wires has proved to be cost effective due to their low level of energy absorption , they are fence like structures made of wire ring supported by anchor and steel posts installed in residential areas that stops

10

falling rocks from reaching the undesired areas. Draped mesh is composed of the cable net and hexagonal wire mesh; they slow erosion, control rock fall into the catchment areas. The structural walls restricts the falling rocks into the catchment areas.

The catchment ditches and the slope treatment are fixed along the slope base and their purpose is to contain the rock fall, their strength and flexibility sustains their rock fall mitigation efficiency. The attenuators structures are cheaper and easy to maintain they are of same nature as the Fence but for them they placed at the bottom allowing rocks to move beneath into catchment areas. The Earthen barriers provides steep slope that favors energy dissipation which enhances its efficiency facilitated by its looseness features, earthen barriers can either be berms or mechanically stabilized earth walls.

Mechanically stabilized walls are more stronger thus been able to withstand high impact rock falls as for the berms they are capable of holding repetitive impacts since they are formed from natural rocks and soil. The anchored nets are free draining nets, they consist of cables that assist in retention required in retaining rocks on a slope and they

Underground mine communication

E

ffective transfer of information from one person to another is essential in every management as it enhances flow of work through directing, controlling and staffing and the same applies to underground mining industries, proper communication systems facilitates proper flow of activities, helps in creating awareness on does and do not's during mining thereby avoiding predictable accidents and harmful substances.

Well established underground communication system enhances coordination mining processes thus facilitating protection, security and safety for the mine workers as it makes it easy to rescue them in case of emergencies which in turn prevent loss of lives as well as damages of materials.

Some of these underground communication systems used in underground mining are: phone systems which are the most simplest and most reliable underground communication system example includes pager phones,

12

carrier current phones and the magneto telephones; carrier current system that entails electrified railroad used for dispatching by use of trolley power circuits, the bell signaling which are very simple and are provided in cages and working level, and lastly the wireless communication systems.

The wireless is one of the modern communication systems and the most utilized wireless system is the ZigBee consisting of the hardware and the software. The application software programs entails the SQL server and the visual basic while as the embedded software consist of the MAC layer and the IAR work bench, the hard ware on the other hand entails the routers, tags and the coordinator. An efficient ZigBee has the following features: an early warning intelligence on humidity, methane and temperature in mining areas, lower power consumption, facilitates large number of sensors, high transition time, and secure links between network nodes and is easy to deploy and configure.

The above features makes it possible and easy to reflect on dynamic situations of the miners in the underground to the ground computer as it accurately detects flammable gas, poisonous gas, underground temperature and keep track of the underground miners thus facilitating safety and security of the underground mine work .

Hardware part of the communication system are given to the miners when moving into the underground and they are used as a tracking device used by their supervisors on the ground who monitors them through computers, these hardware have got circuits consisting of MEMS based sensors whose functions is to real time underground parameters such as harmful gas and detention of unfavorable temperature that are harmful.

Smelting and refining solutions

S

melting is a form of extraction process whose main aim is to produce a metal from its core. Refining on the other hand is defined as a process of reducing impurities from a substance. Thus, smelting and refining processes are significant but can only be made complete via the support of smelting and refining solutions. Smelting and refining solutions are essential in that they help metal dealers meet their business needs and objectives, other than that, these solutions control the pollution output, they also support metal balance calculations and free metal calculations as well as yield a proper management.

Industries producing commodities such as silicon metal, nickel, lead, phosphorus, copper, ferro-alloys amongst others can use smelting solutions of different electrode column technologies that include prebaked carbon electrodes, or self baking electrodes, which are with or without graphite cores.

Smelting solutions greatly reduce energy consumption in metal smelting process.

High levels of energy reduction are determined by the kind of furnaces and the smelting process implemented. For instance, in ferro-alloy, non-ferrous metal and silicon metal processes, use of submerged furnaces and electric smelters form a significant production process.

Precious metal and also other scrap that is valuable from the waste streams are handled through refining and recycling. A combination of refining and recycling form a customized and a comprehensive solution with the lowest possible cost of ownership with also the highest metal returns. Refining solutions are compatible for metals such as silver, gold, palladium, platinum, rhodium as

well as ruthenium. Smelting solutions allow room for environmental benefits that includes reduced off-gas and SO2 emissions, high strength SO2 off-gas, and reduced energy consumption, ability to treat waste materials and heavy material residue and ability to process secondary materials.

Refining solutions may vary depending on the kind of a metal to be refined. For instance lead refining solutions encompasses pyrometallurgical process that ensures a high percentage of pure lead production from the smelting furnaces. With the help of refining kettle furnaces of different capacities ranging from 5 to 100 tonnes per batch, accompanied by high efficiency natural gas, LPG burners as well as furnace oil burners, which is equipped with preheating arrangements, emissions are controlled by a flexible kettle hood, with series of pollution control equipments chained with wet scrubber, which is attached to an induced draft fan alongside a chimney arrangement. In addition, additional equipment for automatic dross removal is vital for lead refining. Also, gravita supplies range of fluxes which are designed to reduce formation of dross and increasing efficiency of the process. The refining unit complement on the other hand is made complete by the automatic lead ingot-casting machine that has got a lead pump with a production capacity of upto10 to 20 MT/hr. the refining unit package is designed for high throughput of proper emission control.

In general, provided there is significant refining and smelting solutions for every targeted metal, the output will always be commendable product plus a conducive environment.

13

Rope Access Equipments

R

ope access equipments are developed so as to aid access to difficult areas during mining activities by the mine workers, the main role of rope access equipments is to provide safety and support of the individual using them .The operators of these rope access solution must meet certain training qualifications in height safety training programmes that includes: rope access training programmes, fall arrest training programmes, rigging training programmes and rope rescue training programmes.

Effective rope access techniques and equipments certified by the relevant bodies gives the stakeholders involved in mining courage to undertake projects that entails usage of rope access equipments in undertaking their activities therefore it is of important to ensure that this equipments are certified for the purpose of operators wellbeing and efficiency of the work been done.

Communication systems are also essential for rope access workers as it keeps them in contact with all the parties

14

involved thus been able to determine the condition they are in.

For the purposes of enhancing efficiency and effectiveness, one should ensure that the following rope access components are in order: Anchorages, ropes, ascenders, descenders, harness, connectors, webbings, protective gadgets, shock absorbers, and backup devices. Anchors refer to places where safety lines are fixed. Ascenders are rope adjustment devices which when attached to a rope it locks under load in one direction and slips freely in opposite direction. Descenders are friction inducing rope adjustment devices that helps the operator to attain a controlled descent on his working line.

Protective gears are also important as they protect the operator from harm; they include protective helmet, gloves, facial masks and overalls. Connectors are devices that allow operator to link himself to an anchor, the backup devices refers to rope adjustment devices for the anchor line that accompanies the operator so as to facilitates the adjustment of the safety line length and

only allows gradual movement along it when sudden load occurs. Webbing which entails; harnesses and lanyards are appropriate due to their visibility in case of a mechanical damage hence facilitating its function.

It is of great importance to put the following into considerations before selecting any particular rope access equipments: suitability for the project been undertaken, risk assessment, adequate knowledge and usage of the equipment and device durability. Rope access work been risky it requires; clearly set objectives, a well laid down plan, safety at work and minimal risk or even zero risk if possible

Bentley's New MineCycle Applications Empower Optioneering for Faster and Bentley Systems, Incorporated, the leading company dedicated to providing comprehensive software solutions for sustaining infrastructure, today announced the launch of Bentley's new MineCycle software applications. These innovative offerings facilitate Optioneering to help mining industry participants address some of their most pressing challenges, including the need for a continuous rather than intermittent mine planning cycle.

The MineCycle products are based on industry-proven, pacesetting Bentley software foundations, with MineCycle Designer extending Bentley's OpenRoads capabilities, MineCycle Survey extending Bentley Map capabilities, and MineCycle Material Handling extending Bentley OpenPlant and OpenRoads capabilities. They are the first Bentley products to be created through syndicated development, which gives industry participants direct input into the software's definition and design. The MineCycle Designer and MineCycle Survey syndicate development sponsors were Anglo American Platinum Limited, AngloGold Ashanti Limited, Lonmin Plc, and Royal Bafokeng Platinum. The MineCycle Material Handling syndicate development sponsors were Hatch, GHD, and PDC. MineCycle Designer and MineCycle Survey work together to greatly accelerate mine planning and mine survey iterations. The time consumed by traditional processes (often taking months) prevented consideration of alternatives and also could result in strategies that were out of sync with changing mine and market conditions. MineCycle's Optioneering lets mine owneroperators timely examine multiple operational alternatives, enabling higher-quality decision making leading to enhanced mine performance.

MineCycle Material Handling enables engineering, procurement and construction (EPC) firms and consultants to accelerate the preliminary design of bulk material handling (BMH) facilities. Through Optioneering, MineCycle Material Handling helps EPCs optimize cost, footprint, and other key factors – by empowering them to quickly consider multiple scenarios.

Robert Mankowski, Bentley vice president, simulation product management, said, “We are very excited about our new mining offerings and the powerful Optioneering benefits they bring to the mining industry. This ability to quickly assess operational planning and engineering alternatives was one of the 'musts' that our syndicate development sponsors identified. Our collaboration with strategic software partner Cyest Technology was also instrumental.”

He continued, “I would particularly like to thank the syndicate sponsors who participated in MineCycle's development. This innovative approach provides industry leaders with a unique opportunity to mutually influence the definition and design of new products. Thus, the mining industry is now ensured of solutions to highpriority business challenges, and Bentley has been able to mitigate risk and accelerate time to market.”

Gary Lane, managing director, Cyest Technology, said, “The new mine planning solution developed by Bentley Systems and Cyest Technology will radically change the way in which mine planning is done in the industry. By applying new innovative approaches to planning and scheduling, mine management can now test different production planning options to understand the impact on the economics and, thereby, derive a more optimal plan that meets the strategic objective of the business. A more optimal mine design and production schedule leads to more effective execution, which will increase return on capital through increased productivity levels and reduced unit cost. Cyest Technology and Bentley Systems have a strategic vision of developing a solution set that will result in a quantum change in the mining industry.”

What MineCycle Syndicate Development Members Are Saying: “The Bentley and Cyest Technology teams have, over the past two years, led us all in a journey of discovery, which has culminated in a set of programs that will push the boundaries of our current way of doing business into the 21st century. We have collectively given input regarding

our various operating requirements in our fields of expertise to Bentley and Cyest over the past two years.

This information has driven them to produce a product that not only looks and functions as we intended but has exceeded our expectations. Whether it is mine surveying or mine planning, the solutions that have been created will allow us to function more efficiently and effectively.

They further allow users to have one point of contact in terms of software that will give them all the functionality they require to perform their work to their absolute best.

It is my belief that the products that have been developed will not only change the way we do work in the particular fields but also allow us to improve it.” – Devlin D. Andersen, Section Surveyor, Anglo American Platinum Limited “For years the mine technical systems and mineral resource management space has been characterized by islands of bespoke applications that could connect, but not fully integrate with other systems. Every vendor wanted to protect its IP and thus did not cater to the mine owners' need for configurable, open, and integrated systems. To break this paradigm, Bentley leveraged an industry-first collaboration among four prominent mining companies to define a common set of open solution requirements from which to develop MineCycle Designer and MineCycle Survey. We all eagerly anticipate the successful launch and implementation of these products that are simple to use yet fit for business purpose.” – Ren van Zyl, Senior Manager MES and MRM, Lonmin PLC “The development of MineCycle Survey and MineCycle Designer is true testimony of what can happen when the mining industry, Bentley, and Cyest Technology partner together, harness their collective knowledge, and develop a solution that is groundbreaking and sets the new standard for mine technical systems development.” – Jurgens Visser, Head Mine Technical Services, Lonmin PLC “We in IT Systems and mine service operations are very positive and VERY excited about the possibility of having all our planning and survey data in a format that is simplified, compatible, easily accessible, and readily available for use. Full ProjectWise integration and Bentley Map usage will streamline mine processes in and between the Survey and Planning departments, as all data will be compatible across departmental software.

Providing management with a collaborative view of our current versus planned scenarios will be an easy and effortless task by implementing Bentley's MineCycle Designer and MineCycle Survey. This will simplify reporting and assist management in making constructive and informed operational decisions.” – Bernice van der Merwe, IT Systems Coordinator—Core Business Applications, Royal Bafokeng Platinum “Bentley is providing the software that will revolutionize the mine survey and planning discipline. Its commitment to the requirements of its clients goes above what is required. We are looking forward to continued collaboration with Bentley to take the South African mining industry to higher technological heights.” – Marthinus Steyn, Senior Mine Planner, AngloGold Ashanti “We estimate that MineCycle Material Handling will help us to produce FEL-1 and FEL-2 layout designs 20 to 40 percent faster. Specifically, the traditionally onerous process to extract 2D drawings is expected to be significantly reduced. When combined with the layout productivity gains, enabled by the equipment library and other capabilities, our conceptual design process will be much more efficient.” – Hendrik Visser, Global Technical Coordinator – Bulk Material Handling, Hatch About MineCycle Designer MineCycle Designer is the only mine design application that provides mine owner-operators with a single dynamic environment for design, evaluation, and scheduling to dramatically shorten planning cycles, support the systematic evaluation of alternative scenarios, and ultimately identify economically optimal mine plans. It functions seamlessly with the scheduling

and evaluation capability supplied by Cyest Technology, a leading mining industry solutions provider and Bentley strategic partner.

MineCycle Designer additionally provides: § rapid feedback on the evaluation and scheduling impacts of design decisions by avoiding time-consuming planning cycles that typically span multiple applications and team members; § a native open database architecture for unmatched flexibility to share design data across the enterprise and integrate with other operational systems to support ad hoc reporting, analysis, and more.

About MineCycle Survey MineCycle Survey is an underground and surface mine survey application that furthers the development of optimal mine plans by accelerating the conversion of raw survey measurements into actionable survey intelligence.

This enables the Optioneering performed with MineCycle Designer to leverage the latest as-mined information and, thus, establish a continuous mine planning cycle.

MineCycle Survey further empowers mine owneroperators to: § consolidate all survey training and operations in a single software application; § rapidly compare planned versus actual mine progress; § leverage native open data formats to share accurate mining progress across the enterprise.

About MineCycle Material Handling MineCycle Material Handling is a purpose-built bulk material handling (BMH) conceptual design application that lets EPCs and consultants significantly accelerate the preliminary design of BMH facilities. It also provides the opportunity to analyze multiple scenarios through Optioneering to propose better-performing and more competitive BMH designs.

MineCycle Material Handling: § speeds design by replacing generic 2D CAD and spreadsheet workflows with a purpose-built BMH conceptual design environment; § provides efficient and accurate project estimates, including bills of material and cut and fills, by performing conceptual mechanical layout in the context of the full site, considering terrain, structural, and other requirements; § facilitates the efficient production of high-quality documentation that clearly communicates design intent, eliminates manual drafting, and produces a ready-todetail 3D model.

About Optioneering Optioneering enables the systematic exploration of engineering alternatives, especially for assessing tradeoffs from the perspectives of multiple disciplines. This BIM advancement, facilitated by new computational resources, multiplies the value of proven simulation and analytical functionality within information modeling applications. While potentially saving engineering time, Optioneering can maximize engineering value through improved asset performance.

About Bentley Systems Bentley Systems is the global leader dedicated to providing architects, engineers, geospatial professionals, constructors, and owner-operators with comprehensive software solutions for advancing the design, construction, and operations of infrastructure. Bentley users leverage information mobility across disciplines and throughout the infrastructure lifecycle to deliver better-performing projects and assets. Bentley solutions encompass MicroStation applications for information modeling, ProjectWise collaboration services to deliver integrated projects, and AssetWise operations services to achieve intelligent infrastructure – complemented by worldwide professional services and comprehensive managed services.

Founded in 1984, Bentley has more than 3,000 colleagues in over 50 countries, more than $600 million in annual revenues, and since 2006 has invested more than $1 billion in research, development, and acquisitions.

15

Simulation and Manufacturing processes for large Composite structures Composite materials are greatly taking over the steel and aluminum structures simply because they poses unique characteristics that exceeds steel and aluminum structures making it more preferred. Industries where composite structures are greatly applied includes: aircrafts, wind turbines, automobiles, and in boats. The following are some of the features that increases its demand ; conductivity, strength, ability to resist corrosion, stiffness, ability to tolerate damages and most importantly its ability to produce materials that have got least thermal expansion precisely those materials that are applicable in aerospace.

The process of converting composite materials into large structures is quite expensive hence it is essential to identify an appropriate technique that can accurately manufacture efficient structures, some of the methods in use are; Hand lay-up, Resin Transfer Molding that comprises of the Seemanns Composite Resin Infusion Modeling and the Fast Remotely Actuated Channeling Processes. The hand lay-up model is time consuming and much more prone to porosity as compared to the rest due to high labor cost.

18

Hand lay-up processes entails placing fabric manually on a tool that has resin in it by use of roller and squeegees , in Resin transfer molding fabric is laid into a tool that operates under pressure, these process reduces human labor thus saving on cost and saves on time unlike the hand lay up.Seemans composite resin modeling is more diversified techniques in which series of channels are used above the fabric for resin distribution where the resin is forced between the planes of the fabric and the channels, this method is much cheaper and saves on time. Lastly the Fast remotely actuated channeling process is almost similar to Seemanns except that it has a well refined distribution and also it allows high pressure to the fabrics thus manufacturing higher fiber contents and it is also much faster.

Composites are often combined into two pairs, one pair contains fiber material responsible for strength and stiffness while as the other pair consists of the matrix material which has the function of supporting and offering protection to the fiber. Fiber reinforced plastics are the most common composite structural materials which utilizes either the thermo sets or thermoplastics for their matrix.

Reinforcement materials is another important aspect of the composite and the commonly used are the glass fibers which is made up of oxides such as silicon which assist in resisting damage, corrosion and is also responsible for making composite stronger, the other commonly used reinforcement material is the carbon fiber that increases strength and stiffness of composite to weight ratios for any material.

Fiber content and porosity are essential factors in composite use this is because a composite that has greater content concentration is more stiffer and stronger as compared to the one that has smaller fiber content, on the other hand porosity in composite leads to creation of negative barriers which includes: Exposure to harmful substances, cause fiber to rub against each other and worst of all increase stress concentration.

legrand-ups-solutions-continuity-of-serviceindustrial-applications…one Legrand's new UPS system encompasses three ranges – the Modular series for a reliable power supply in industrial and commercial applications up to 120 kVA and for commercial and residential applications - the Conventional series up to 10 kVA and the Line Interactive series up to 3 kVA.

N

ew to Legrand's range of service sector solutions for industrial environments, is an uninterruptible power supply (UPS) system, which enhances products - from structured cabling systems for data networks, to control and management of the installation, including trunking and distribution systems.

“Legrand's environmentally approach to constantly changing global markets, encompasses ongoing technological developments of the company's extensive product portfolio. “Energy

efficiency, quality power supply, optimum safety and enhanced aesthetics are critical in the advancement of all Legrand systems,” states Luk Ivens, general manager, Legrand SA, global specialists in electrical and data building infrastructures. “The Legrand UPS system, which ensures continuity of service for installations in diverse industries, provides reliable performance in terms of power and back up time.

“Optimum sizing of power stages, the latest electronic components and thorough testing of each unit, ensure dependability and safety of the new Legrand UPS system. High performance batteries and an efficient charging system have extended battery life by up to 50%.”

The compact and lightweight Modular series is suitable for industrial and commercial applications, ensuring a reliable power supply up to 120 kVA. This flexible system, which is easy to transport, install and maintain, is made up of standard modules that be added to existing configurations, to increase the power supply or backup time.

When necessary, power is easily expanded inside the cabinet, without having to reconfigure the installation or UPS. The backup time can be extended either by adding battery trays in the same cabinet, or by adding another cabinet, depending on the power of the UPS and the backup time required.

This modular three phase system consists of individual single phase modules which are redundant and selfconfiguring, to enable power to be increased quickly and safely. Different levels of redundancy are easily obtained to ensure maximum continuity of service at all times. legrand-ups-solutions-continuity-ofservice…two An advantage of a three phase power supply system with single phase loads, is that in the event of a failure of one of the modules, there is no loss of power.

Power continues to be distributed over the other modules which are still operational. With this system, it is also

20

possible to create redundancy on each individual phase. If one power modules fails, the other modules for this phase take over. In a failure of a UPS that includes several control modules, continuity of service is assured by the automatic distribution of lost power over the other modules.

A range of communications accessories has been designed for managing and configuring the UPS, as well as for remote control of the system. These devices include network interfaces for real time control of the UPS and for managing numerous events that include no power, over-loads and by-pass problems. These network interfaces, with a 32-bit processor, do not require any external software.

Other accessories include sensors for monitoring ambient temperature and humidity, smoke detectors and fire safety controls, as well as air conditioning fault and intrusion detectors.

Communication and supervision software for accessing the operating parameters of the UPS and for carrying out full diagnostics and the configuration of specific functions, is also available.

This UPS system also encompasses the Conventional series for a reliable power supply up to 10 kVA and the Line Interactive series, which is a UPS system up to 3 kVA. These systems are suitable for commercial and residential environments.

Released by Lindy Morton, Festivitas, Tel: (031) 502 2374 or 083 268 6666 For further information Internal Sales, Legrand SA PO Box 1917, Kelvin, 2054 Telephone: (011) 444 7971 Fax: (011) 444 7980 Email: legrand.south-africa@legrand.co.za Web: www.legrand.co.za

J

ohannesburg, 04 February 2014 – Tenova Mining & Minerals announced that Tenova Pyromet, its electric furnaces and associated plant equipment specialist, was recently awarded a contract by Metalleghe for equipment design, supply and supervision for a new plant being built in Mrkonjic, Republic of Srpska, Bosnia and Herzegovina. The project, which is well underway, is expected to make Metalleghe the second largest Bosnian company.

The 24-month contract is part of Metallghe's expansion to its silicon metal production facilities, through developing a new smelter complex within a few kilometres of the existing BosnianHerzegovinian Silicon Industries (BSI) operation. BSI is the silicon metal and silica fume production arm of the international Metalleghe Group.

control systems, which will allow interfacing between the smelter furnace, the raw materials handling system and the off-gas cleaning plant. Tenova Pyromet will provide process guarantees for the smelting furnace's production rate and hot metal power consumption per silicon metal unit produced.

An important Tenova Pyromet technology being provided is the automation and

21

Mine Communication Systems Designing industry-leading communication and safety solutions for the harsh mining environment takes more than just technology. It takes underground intelligence and industry expertise in communications, safety and asset monitoring.

Mine Radio Systems (MRS) has been the leading supplier of the world's most advanced, performance-driven, scalable and reliable communication solutions engineered to improving efficiency, safety and productivity in the mining and tunneling industries for the last 25 years.

With over 400 installations at mining and tunneling sites in over 50 countries, MRS's world-class network of clients and partners, along with its advanced solutions, prove to be a standard for success.

Underground communication and safety applications MRS maintains a commitment to the development of technologies that enhance the value of existing communication infrastructures for mining and tunneling. Through this development and implementation, MRS leads the way in establishing communication networks through the use of underground intelligence.

MRS features proprietary innovations in underground communication and safety solutions, and hosts an array of applications under the FLEXCOM, MultiCOM, INsite®, Helian, Solarian, Centrian and FloSonic brands. Our latest innovations include the Helian underground safety solution and the Solarian collision prevention solution used for safe underground navigation.

Leaky feeder underground communication systems MRS's innovative leaky feeder underground communication solutions are built on proven technologies that incorporate the latest standards and features necessary for the mining industry. MRS is committed to the development of technologies to enhance the value of existing leaky feeder infrastructures and the integration of seamless data reception and transfer in the mining industry.

MRS's proprietary innovative communication solutions deliver mission-critical elements end-users need

22

within a cost-effective solution. MRS solutions are designed and engineered to exceed the industry standards and have proven to be rugged, reliable, responsive and redundant.

Communication and safety systems for hazardous mines MRS's solutions have been safety tested and certified for hazardous mining environments around the world. Its advanced communication and safety solutions are compliant with the mandatory safety and health standards to help reduce fatal accidents, frequency and severity of non-fatal accidents, and to support operators in promoting improved communication and safety standards.

MRS's FLEXCOM, MultiCOM, Centrian, Solarian, INsite, FloSonic and Helian solutions provide mine operators with the best suite of products for operators requiring location and detection, asset monitoring, collision prevention, air quality control or trapped miner search solutions. MRS's communication and safety solutions have been designed to help advance mine operators' safety obligations and increase their productivity.

Voice, data and video communication system for mines MRS's FLEXCOM solution has outperformed mining and tunneling industry standards for effective underground communications for over two decades. The FLEXCOM system is the industry's most cost-effective solution for information exchange over leaky feeder while providing best-inclass quality, support and service.

The FLEXCOM solution has been engineered specifically to meet the stringent certification standards for hazardous and non-hazardous environments around the world. Its features include: Ÿ Two-way voice communication Ÿ Two-way data communication Ÿ Video communication Mobile underground communications system MRS's MultiCOM underground intelligence solution provides operators with an advanced solution for underground voice, video and data communications.

The MultiCOM solution's success in the industry is due to the simplicity of installation, operation and maintenance.

Operators benefit from a solution that has proven to be the industry leader for rugged, reliable, responsive and redundant communication technology.

Features include: Ÿ Real-time information Ÿ Adaptability to existing infrastructures Ÿ Flexibility Ÿ Mobility Ÿ Remote diagnostics Ÿ Automatic gain control Multi-level asset location and personnel warning technology MRS's Helian is the most advanced safety solution for the mining and tunneling industries. Its advanced multilevel asset location and personnel warning technologies are engineered specifically to exceed the standards for safety in the mining and tunneling industries.

The Helian underground safety solution works seamlessly with the MRS INsite® software providing extra layers of safety to operators. The Helian solution includes the Helian personnel transponder (HPT) and the Helian search unit, together providing the most advanced safety technology for mine and tunnel operators / constructors. It features include: Ÿ Last known location of assets Ÿ Location of trapped personnel as well as distance and direction Ÿ Emergency situation alerting Ÿ Visual alert via cap-lamp Ÿ Real-time emergency alerting Certified underground communication systems MRS solutions have been engineered specifically to meet the stringent certification standards for hazardous and non-hazardous environments throughout the world. MRS is an ISO 9001: 2008registered company providing the highest degree of quality in all its solutions and components.

MRS solutions have been geared to improve efficiency, underground to surface communications, safety, monitoring and productivity in the mining and tunneling industries.

HPE Africa's Hyundai HL760-9 wheel loader series 2015 HPE Africa hosted a working demonstration recently of the new Hyundai wheel loader HL 760-9 series, which is an upgrade on the previous -7 series.

High Power Equipment Africa - HPE Africa – has launched the new Hyundai wheel loader HL 760-9 series, which is an upgrade on the previous -7 series.

“These robust wheel loaders have been designed for efficient performance in arduous working conditions in mining, construction and agriculture,” says Alex Ackron, managing director, HPE Africa (a division of the Capital Equipment Group, Invicta Holdings Limited).

“These versatile machines, with an operating weight of 18 400 kg and heaped bucket capacity of 3,1 m³, are suited to the terrain and load of every specific application.”

Hyundai -9 series wheel loaders, fitted with fuel efficient, low noise Cummins

2 tier engines, have an in-line fuel pump that delivers more power at high injection pressure, for cleaner combustion and lower emission.

The fully automatic transmission system is designed for durability, minimum power loss, low noise and improved travel speed. The new clutch control design and reduced shifting shock, ensure a smoother ride when travelling.

The automatic transmission system of the -9 series also allows the operator to customise automatic transmission shift timing and clutch cut-off, based on operating conditions and personal preference. These variable operating modes - which contribute to improved productivity, reduced fuel consumption and enhance operator comfort - include manual, auto-light, auto-normal and auto-heavy modes. Convenient rotary type switches enable easy adjustment of power transmission modes and clutch cut-off. hpe-wheel-loader-HL 760-9-series

…two The 'ride control system' - an optional feature - has a shock absorbing accumulator that cushions the boom, reduces material loss and improves operator comfort. The operator is able to turn this system on or off with an overhead switch.

These loaders also have enhanced axles for efficient and safe operation in uneven ground conditions. Self adjusting brakes that automatically regulate disc clearance, ensure improved brake performance and reduced service time.

The new load sensing hydraulic system, with a variable volume piston pump and closed centre main control valve, provide efficient hydraulic power and additional energy savings. These 9 series machines have a newly designed parallel-mounted cooler configuration and non louvered fins to prevent clogging.

All coolers are designed with an aluminium bar plate configuration and withstand thermal shock, impulse and vibration, to ensure extended service life. The top mounted non-louvered aluminium air condenser and variable displacement A/C compressor, offer maximum cooling capacity, energy savings and easy clean-out.

This event, which was held on a compost farm just outside Bronkhorstpruit, involved a display of the Hyundai -9 series machine loading compost and mixing raw materials. Visitors were also given the opportunity to test and operate the machine themselves Ground level access to fuel and oil filters, grease fittings, fuses, machine computer components and wide open compartments, also simplify maintenance procedures. The 9 series has been designed for longer lubrication intervals and extended component life.

The new centre pivot roller bearing design, which is now double tapered, also requires less maintenance.

24

hpe-wheel-loader-HL 760-9-series …three An advanced colour LCD monitor display unit is fitted onto an adjustable swivel mount to enable the operator to easily and efficiently control the machine. Self diagnostics, maintenance check lists, as well as start-up machine security, have been integrated into the monitor of the -9 series, for greater versatility and improved safety. A colour rear-view back-up camera is an additional option.

HPE Africa offers customers an operator training programme to ensure optimum performance from every machine.

The company, exclusive distributors in Southern Africa of Hyundai earthmoving and construction equipment, also supplies McCloskey crushing and screening plants, MB crusher buckets, as well as Soosan hammers and drills.

Released by Lindy Morton, Festivitas, Telephone (031) 502 2374 or 083 268 6666 For further information Bettina Simpson, Marketing Manager HPE Africa, Capital Equipment Group (CEG), Invicta Holdings Limited Telephone (011) 397 4670 Email: bettina.simpson@hpeafrica.co.za Web: www.hpeafrica.com

Hyundai has re-designed these machines with new features for improved visibility and enhanced comfort for the operator. The cab has rounded front glass and larger door glass for a better field of view and a fully automatic climate control system improves heating and cooling in the cab. Other features include a tilting and telescopic steering column and an adjustable wrist rest to reduce operating stress. For improved safety, the access ladder has a 20 ° incline and large, deep tread, non-slip steps.

The -9 series wheel loaders can be equipped with optional full rear fenders and front and rear mud flaps to reduce material splatter to the cab and machine frame.

25

26

Pilanesberg Platinum Mine

P

ilanesberg Platinum Mines (Pty) Ltd, a wholly owned subsidiary of Boynton Investments (Pty) Ltd, was granted a mining right over four properties in the Pilanesberg project area by the South African Department of Minerals and Energy in February 2008. The right covers about 85% of the Tuschenkomst, Ruighoek, Witkleifontein and Rooderand properties in the area. Initially, ore will be mined from the Tuschenkomst property followed by the Ruighoek property. Total project area is 14,511ha.

The project is located on the western limb of the Bushveld Complex in South Africa's North West Province, around the Pilanesberg intrusion and next to Barrick's Sedibelo project, which is estimated to contain about 90% of the world's platinum resources and around 80% of its chrome.

About 72% of the project is held through Boynton, with about 27% held

by Platmin's Black Economic Empowerment partner, the Moepi group of companies. A smallholding making up the balance may be distributed among Boynton's shareholders on a pro-rata basis at a later stage.

"The mining operation will recover all six platinum group elements, as well as gold, nickel and copper which are present in the ores."

In November, 2007 Platmin announced the appointment of The Standard Bank of South Africa as lead arranger to secure about US$200m for the development of the project.

Platmin raised about C$92m (gross including an over-allotment option) in a private placement and public offering in December 2007, of which about C$76m was for construction at the project. The offering was underwritten by a syndicate jointly led by RBC Capital Markets and GMP Securities LP, and including Haywood Securities Inc. Then, in mid-May 2008, the company secured a bridge loan facility of about US$46m with Standard Bank for further development at the project.

GEOLOGY AND RESERVES The target area in the Bushveld Complex is the Merensky Reef, a layer 28

of igneous rock which, together with an underlying layer, the Upper Group 2 Reef (Ug2), contains most of the world's known reserves of platinum group elements (PGEs). The Merensky Reef, which varies in thickness from 30cm to more than 1m, is a pyroxenite unit with often coarse-grained thin chromitite stringers.

The PGEs are hosted in disseminated sulphides with typical grades ranging from 3 to 10g/t. PGEs in the UG2 are contained in finely disseminated sulphides in the predominantly chromite rock, and typical grades are between 5 and 6g/t.

The mining operation will recover all six platinum group elements – platinum, palladium, rhodium, ruthenium, iridium and osmium – as well as gold, nickel and copper which are present in the ores.

A feasibility study on the project by SRK Consulting, announced by Platmin in July 2007, indicated proven and probable PGE mineral reserves totalling 4.4Moz of 3PGEs (platinum, palladium and rhodium) and gold, 3.2Moz attributable to Platmin. Life of Mine (LoM) is predicted at 16 years, which will be extended if the mineral resources on other properties forming part of the Mining Right are incorporated.

Platmin will produce two concentrates (UG2 and Silicate) that will be combined to achieve a PGE concentrate that is low in chrome. In order to obtain a PGE concentrate, the ore will first be crushed then wet-milled. Reagents (including collectors and frothers) will then be added to the slurry and air will be blown through the mixture, enabling the grains of the required metal minerals to be collected in the resultant froth.

Payback period on capital is predicted at two-and-a-half years following first production, based on basket metals prices less than half of current market prices, and the average operating margin over the LoM is expected to be 46%. The company says the ruthenium and iridium in ores and concentrates that will be co-produced with the 3PGEs has the potential to improve

project values.

CONTRACTORS AND PRODUCTION Construction of the Pilanesberg project started in October 2007, and by mid2008 was still on schedule. Mining officially began in March 2008 with the first blast of waste overburden for the open pit on 11 March.

Mining will be based on extracting five million tonnes of ore per year, which will be processed through a central concentrating facility on the Tuschenkomst property. This will enable production to be ramped up to reach steady-state production of 250,000 3PGE+Au oz/year (100%) within the first year of production, 2009, and production is planned to reach a peak of 296,000 3PGE+Au oz/year in 2010.

"Production is planned to reach a peak of 296,000 3PGE+Au oz/year in 2010."

In May 2008, Platmin announced it had accepted South African power utility Eskom’s quotation for 37MVA of new power supply for Pilanesberg. The installation will consist of a new Pilanesberg regional sub-station to cater for all new projects in the area, installation of two newly-fabricated 20MVA transformers and 44km of overhead 132kV transmission lines.

An established water network is already in place. In June 2008, the company announced it had struck a concentrate offtake deal with Northam Platinum Ltd, of South Africa, under which Northam will provide smelting and refining facilities for the Pilanesberg mine's PGE concentrate. Northam’s smelter and base metals removal plant are located in the western Bushveld Complex, 60km from the Pilanesberg mine.

Then, at the end of July 2008, Platmin announced it had awarded the contract for conducting its open-pit operations to MCC Contracts (Pty) Ltd, of South Africa. The contract, worth nearly US$600m, will run for the first six years of the mine’s life. It is anticipated that MCC will directly employ more than 500 people from the areas surrounding the Pilanesberg mine.

BMG Hydraulics has recently completed the design and manufacture of a new hydraulic electrode control system for precise furnace functions, including temperature regulation, required during the production of ferrochrome.

B

MG's specialist hydraulics division - BMG Hydraulics – has recently completed the design and manufacture of a new hydraulic control system for precise furnace functions, including temperature control, required during the production of ferrochrome.

“This new hydraulic electrode control system replaced the existing system after a transformer explosion caused substantial damage at one of the mine's furnaces,” says Dustin Pereira, projects and engineering manager, BMG Hydraulics. “The entire replacement system was designed, fabricated, tested and supplied to the mine in less than three weeks. A system of similar complexity and size would normally be completed in about 12 weeks.

“Hydraulic control systems are essential for furnace functions - including the regulation of electrodes to maintain constant heat - and therefore play a critical role during ferrochrome production. Hydraulic systems also control power regulation, in addition to case slipping, core slipping and nipplage.

“All components that needed to be replaced were supplied by BMG hydraulics, which means the mine has immediate access to specialist services and quality spares.”

30

BMG Hydraulics enhances its manufacture and repair service with a total design solution, using the latest CAD and CAM software. This service encompasses expertise from design, to manufacturing and assembly of a complete system.

The company offers the industrial and mining sector a comprehensive service for hydraulic systems that combines quality branded components, hydraulic engineering and contamination control, as well as a test and repair service, to ensure optimum performance and extended service life.

BMG's service to the hydraulics sector includes a mobile workshop that is fitted with tools, equipment and quality branded spares to be able to efficiently perform functions like troubleshooting, on-site repairs, installations, commissioning and system flushing. This service also encompasses on-site fluid analysis and hose and pipe assembly.

Released by Lindy Morton, Festivitas (031) 502 2374 or 083 268 6666 For further information Dustin Pereira, Projects and Engineering Manager, BMG Hydraulics, Bearing Man Group Tel: +27 (011) 614 2004 Email: dustinp@bmghydraulics.net Web: http://www.bmghydraulics.net