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CORPORATE GROUP TRAINING & COURSES - WHITTLE!!

Have a group of employees that need basic training in terms of mine planning software? Or perhaps a refresher course to get those rusty skills oiled up? Or perhaps professional development is the next step for your employees... Be it as it may, the School of Rock prides itself as a preferred service provider in terms of empowering your group of individuals to tailor-made requirements. Kindly click on the link below for particulars: "https://www.schoolofrockmining.com/group-training-and-courses" Alternatively, send me an email at: "info@schoolofrockmining.com"

MINING METHOD MONDAY - SAW-TOOTH BACK STOPING!!

This method of carrying the back in an overhand stope is shown at position G in the figure below. It is claimed that it makes drilling more convenient if machine drills mounted on a bar are used - 911 Metallurgist.

MINE DESIGN BASICS FRIDAY - RATIO vs PERCENT!!

I tend to get confused when it comes to expressing ramp gradients in a ratio format vs percentage format. Below is a quick and easy reminder that you can use. The ramp gradient is exactly the same for both examples.

CONGRATS SEPT'19 GROUP!!

A very warm congratulations to Jaco, Tim, Lukona and Lizanne from Sishen and Kolomela mines for completing the Mine Planning Basics Short course, presented at the university of Pretoria this week. These guys sweated it out by creating a mine design as well as a LoM schedule using mine planning software generously provided by RPMGlobal and Optron. Also congrats to the prize winners - Jaco & Lizanne! I wish you guys all the best with your careers!!

HAULSIM PRODUCTIVITY SIMULATIONS!!

Are you 100% confident that your Excel calculations are correct in determining fleet numbers? Are your roads accurately set-up in terms of stop signs, single carriage areas, steep gradients, single-bay dumps? What happens when you have congestion in your pit, how does Excel cater for that? With the HAULSIM simulations you can set up your site accurately to generate realistic results in terms of fleet numbers. The simulations allow you to run a host of possible scenarios, to ensure you understand the flex of your loading & hauling system, and better prepare for possible surprises. Doing a little homework now might just save you years of agony when things don’t pan as out as hoped, and more im

MINE PLANNING BASICS FRIDAY - WHITTLE YOU BEAUTY!!

Doing a pit optimisation for a client, I realised you can utilise 2 different beneficiation plants by cleverly setting up the expressions. The material above the higher cut-off grade (COG) gets "dispatched" first and committed to that plant. That material is then taken care of. The remaining material above the lower COG is then "dispatched" to the other plant, leaving the remaining material as waste. If you work on the cash flow basis, Whittle will fill the plant that generates the most profit first. The beauty comes in the reporting where Whittle clearly shows you the tonnes moved to the different plants, the grades from the 2 plants, the yields, the associated costs as well as revenues...

MINE SCHEDULING!!

know the feeling... when you're losing precious time because of fighting the software instead of running iterations and scenarios... You will never have confidence in your schedule if you do not have 2 or 3 scenarios to test the flex of your system. Your superiors want a number of options, not just one answer. RPMGlobal's XPAC SOLUTIONS products allows you to do just that - run scenarios instead of suffering in silence. With almost a decade of open pit scheduling experience allow me to help you create options for your company, so you can make informed decisions, and understand the risks with confidence!

MINING ROCKSTAR OF THE WEEK – ILMENITE!!

Ilmenite is a common accessory mineral in igneous rocks, sediments, and sedimentary rocks in many parts of the world. Apollo astronauts found abundant ilmenite in lunar rocks and the lunar regolith. Ilmenite is a black iron-titanium oxide with a chemical composition of FeTiO3. Ilmenite is the primary ore of titanium, a metal needed to make a variety of high-performance alloys. Most of the ilmenite mined worldwide is used to manufacture titanium dioxide, TiO2, an important pigment, whiting, and polishing abrasive - "Geology.com"

MINE DESIGN!!

How sure are you that your mine designs have the minimum number of switchbacks? Have you tested the impact of having one switchback less, how that reduces your strip ratio and down-the-line costs, not to mention the health & safety of your employees ...? What about your benches & stacks, do they honour the geotechnical slope angles to prevent slope failure...? Your ramp systems on your interim high-walls - do they tie up with your final design and serve as dual access for that rainy day when you need it most...? Difficult questions I know, but prevention is better than cure as they say. Using state-of-the-art mine design software and almost a decade of design experience, I can help you sleep

MINING METHOD MONDAY - SIDE STOPING AND BREAST STOPING!!

Side stoping is an extreme of combination stoping in which the working face of the stope is vertical. The face is parallel to the raises just as the face in flat-back stoping is parallel to the levels. Breast stoping refers to the working of a flat orebody, or a flat section of an orebody, just as coal is mined from a flat coal seam. That is, a slice is worked in a horizontal direction. The assumption is that there is no open stope either above or below the slice, or else the method becomes either underhand or overhand stoping. In some cases, the benches in underhand or overhand stoping are called breasts, and the method breast stoping, but I believe that is not the usually accepted definiti

CORPORATE GROUP TRAINING & COURSES - SURPAC!!

Have a group of employees that need basic training in terms of mine planning software? Or perhaps a refresher course to get those rusty skills oiled up? Or perhaps professional development is the next step for your employees... Be it as it may, the School of Rock prides itself as a preferred service provider in terms of empowering your group of individuals to tailor-made requirements. Kindly click on the link below for particulars: "https://www.schoolofrockmining.com/group-training-and-courses" Alternatively, send me an email at: "info@schoolofrockmining.com"

IS YOUR PIT OPTIMISATION ADJUSTED FOR THE CURRENT ECONOMY??

The mining industry is notorious for its volatile nature as commodity prices fluctuate. History shows that it's the companies that can adjust to the market changes the quickest that lead the pack. Mining on a 5-year old mine design that was based on a Whittle shell all those years ago can mean you're either leaving value in the ground, or more detrimental, you're now mining in areas where profitability is going South... With almost a decade of Whittle open pit optimisation experience I can help you dust off that old Whittle model, and make sure your mine is set up to run at maximum profitability under current economic conditions... Doesn't hurt to make sure now does it...

MINERAL PROCESSING METHOD OF THE WEEK - DRYING!!

The removal of water from solid materials by thermal drying plays a significant role in modern mineral processing. A great number of dryer types are available. Convection dryers, employing a flow of hot combustion gases to remove moisture from a pulp stream, are the most common. To this type belong rotary drum, conveyor, and fluidized-bed dryers - Encyclopaedia Britannica.

CORPORATE GROUP TRAINING & COURSES - OPMS!!

Have a group of employees that need basic training in terms of mine planning software? Or perhaps a refresher course to get those rusty skills oiled up? Or perhaps professional development is the next step for your employees... Be it as it may, the School of Rock prides itself as a preferred service provider in terms of empowering your group of individuals to tailor-made requirements. Kindly click on the link below for particulars: "https://www.schoolofrockmining.com/group-training-and-courses" Alternatively, send me an email at: "info@schoolofrockmining.com"

MINING METHOD MONDAY - MINING BY COMBINATION STOPING!!

Combination stoping is a combination of underhand and overhand stoping where it is possible to keep the working face more nearly in a line parallel to the raises and perpendicular to the level. This is a distinct advantage if a stationary or shaking chute is being used to carry the ore to the level, because a large part of the face of the stope is accessible to the chute. This becomes a double advantage if a large output is required. In combination stoping development work is also reduced because levels may be driven far apart, and fewer raises are required than in simple underhand stoping - 911 Metallurgist.

2 WEEKS TO GO!!

Take control of your career and get empowered by these mine planning courses. Companies want their employees to do the job using software, and this is exactly the exposure you get when you create a mine design and schedule during these courses. For your convenience, there is an online booking facility to secure your spot and avoid disappointment: "https://www.schoolofrockmining.com/book-online" Alternatively send me a mail at: info@schoolofrockmining.com and I’ll gladly assist!

MINING TECH – BRIDGING THE G-APP!!

So, you had a consultant do mine planning work on your project - great. The consultant used a variety of specialised software packages to do e.g. a Pit Optimisation, Mine Designs and a Mining Schedule - great. The consultant gave you Excel spreadsheets, a PowerPoint presentation with screenshots and a Word document of the work - great. The consultant also showed you on his/her computer what the work looks like in the software - great. But eventually the friendly consultant leaves and you don't have the software to open the work and look again. What if the screenshots don't reveal the ramp you need to see? Or you need to show your colleague all the great work quickly and efficiently, without

MINING ROCKSTAR OF THE WEEK – HORNBLENDE!!

Hornblende is a field and classroom name used for a group of dark-colored amphibole minerals found in many types of igneous and metamorphic rocks. These minerals vary in chemical composition but are all double-chain inosilicates with very similar physical properties. A generalized composition for the hornblende group is shown below. (Ca,Na)2-3(Mg,Fe,Al)5(Si,Al)8O22(OH,F)2 Note that calcium, sodium, magnesium, iron, aluminium, silicon, fluorine and hydroxyl can all vary in abundance. This creates a huge number of compositional variants. Chromium, titanium, nickel, manganese, and potassium can also be part of the complex composition and further indicates the generalization of the formula given

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