Hi, my name is Rodolfo, a Mining Engineer and member of the MiningMath team.
I am here to present a new strategic mine planning tool capable of generating, in a
single step, a mine scheduling in an intuitive and optimized way.
SimSched is already making an impact, increasing the Net Present Value of real projects by
more than 15%.
There is a consensus in the industry, whether by methodology or technology, that most of
the current mining plans cannot offer reliable projections of the reality, as we can see
in the Figure from 2011, by SNOWDEN consultancy.
Data from 2014, provided by SRK Consulting, shows that about 80% of mining projects have
problems in achieving planned production levels, with 30% remaining in this situation for more
than 3 years in a row.
Almost 70% of the projects have cash flows lower than expected and 30% of them never
reach a positive value.
From the block model, the strategic planning defines which blocks will be mined, when it
will occur, and what their destinations will be, whether a processing route, a waste dump
or a stockpile, aiming to maximize the value of the project while respecting constraints,
such as production limits.
Through the use of specific software by an experienced professional, a model scheduled
in mining periods is obtained, followed by indicators curves, such as the Net Present
Value, which guide management decisions.
In the traditional approach, it is necessary to define cut-off grades, which freeze the
block's destinations before the optimization.
Then, the Lerchs-Grossmann algorithm, published in the 1960s, is executed, producing a series
of nested pits from factors applied on the metal's sale prices, which guide the expansions
of the pit.
The specialist must, then, select from the resulting pits a subset to compose the mining
phases, which are manipulated to better comply with the geometric constraints.
Scheduling is performed using the phases as a guide and multiple algorithms that allow
necessary constraints to be respected.
It is clear that this methodology requires several points of human intervention, significant
experience of the professional and a high consumption of working hours to produce a
solution that is not optimized with a global view.
We offer an alternative to this methodology, based on a mathematical model that considers
all constraints simultaneously, called Direct Block Scheduling, or just DBS.
This technology was also devised in the 1960s, but it was impossible to be implemented with
the computers of that time.
The studies in this area advanced mainly from the 2000s and today we are the first company
to launch this technology into the market.
With DBS, it's only necessary to initially format the data, fill the parameters, and
execute it to achieve an optimized scheduling, eliminating the intermediate steps of the
traditional approach.
The block's destinations are optimally defined as part of a proprietary mathematical model
that makes decisions aiming to maximize the Net Present Value of the project.
This new approach, based on mixed integer linear programming and heuristics, is able
to respect the same constraints required in the traditional methodology, but it is more
likely to find higher values for the project, given its global view.
Thus, the specialist can easily configure and execute multiple strategic scenarios,
with possible variations in the uncertain parameters, and invest his time in assessing
the impacts on the indicators and on the resulting operational aspects.
This flexibility allows the planner to identify more robust and value-added solutions.
In the traditional methodology, the input data are necessarily deterministic, that is,
there is no way to consider uncertainties in the decisions of the algorithm.
Each new scenario requires a fresh run of all the steps described previously.
With SimSched, apart from the ease of generating multiple scenarios, it is possible to obtain
mining plans using simulated and probabilistic data, that is, geological and economic uncertainties
can be considered so that the optimizer makes robust decisions in all scenarios simultaneously.
In practice, when the future arrives and the fixed assumptions of the traditional methodology
are faced with the reality, the project is not prepared to deal with such fluctuations,
leading to the consumption of more time and resources in an attempt to adapt to the new
circumstances, with immediate decisions that forego the project's overall profitability.
With multiple scenarios that simulate different realities, which is possible in our approach,
the manager is better able to control his risks and be more assertive in his decisions.
With our technology it is possible to update strategic decisions according to, for example,
improvements implemented in the processing stream, giving the optimizer the opportunity
to redefine his decisions against a new scenario.
In the figure, we can observe a new configuration of the mining periods caused by the eventual
exchange of a ball mill by a bar mill.
The mill upgrade impacts on the benefit function, which, when imputed in the strategic mine
plan, offers the opportunity for our engine to find better strategic decisions for the
new potential scenario.
Our technology has added value in real mining projects.
In 2015, Matthew Randal, our UK representative, ran SimSched DBS in a customer's mine and
achieved a 15% increase in NPV compared to the one initially obtained for the project.
Our representatives in Chile, from the InnovaMine consultancy, did a similar exercise in 2016,
and the improvement exceeded 20%, which meant an increase of more than 100 million dollars
for the project considered.
Our product is being commercialized in its beta stage.
Mining in Motion, a Montenegro-based consultancy and Alexander Proudfoot, a global consulting
firm present in 12 countries, have acquired our software.
On the academic side, we have official partners such as the Federal University of Minas Gerais
and the National University of Colombia, developing articles related to our technology, as well
as supporting dozens of other universities providing licenses and materials to their
students.
We also provide services using SimSched, being Itaminas, an iron ore mining company, our
customer in Brazil in which we use the DBS Full version, including blending restrictions.
Australian consultants MineSmith and R&O Analytics also have mining software and are integrating
our technology into their tools, since SimSched was developed in the form of a plugin.
Further detailing the scope of these partnerships, MineSmith has LOBOS software, which integrates
large complexes containing multiple mines, processes, stockpiles and material handling,
incorporating global economic models straightly into a complex optimization.
DAQRAS is a new tool, being developed in integration with SimSched, for data analysis and decision-making
in mine planning.
It delivers greater value by offering a method that allows engineers and mine managers to
conduct both the evaluation of long-term assets of mining projects and the ability to include
economical and operational uncertainties in the mine's assessment processes.
DAQRAS also has tools that facilitate the importation and exportation of data on SimSched.
Inti Mining Smart Solutions (IMSS), a consultancy based in Peru, has developed a multi-mine
project using SimSched DBS.
In the words of the consultancy itself, in a single step it was possible to obtain 89%
of the NPV of the so-called "Best Case", which is seen as an unattainable result of the traditional
methodology, adding the advantage of having respected the capabilities of the project
and with results that facilitate the task of pit design.
Regarding our products, SimSched DBS Core delivers an optimized scheduling, as described
earlier.
SimSched DBS Full, which will be released soon, will include all the functionality of
the Core version, with the addition of Blending and Other constraints, such as equipment hours,
production by rock type, consumption of processing inputs, metal production, among others.
SimSched DBS Full can control the sum or average of any variable present in the block model.
We work with Lifetime Licensing, in which the customer purchases the software and pays
an optional and annual fee for updates and support.
There's the on-demand option, in which the customer purchases for a given period of time.
We offer services in optimized mine scheduling and also development services to integrate
our technology with third-party software.
We also offer SimSched Pit Optimizer, which is a simplified version of SimSched DBS and
has been on the market since 2014, with more than 2000 licenses distributed.
SimSched Pit Optimizer Core performs pit optimization with the maximization of undiscounted cash
flow, that is, the time variable is not considered for the optimizer decisions.
It respects minimum bottom widths while not requiring to predefine cut-off grades, and
can be used by clients who prefer to remain with the traditional methodology.
SimSched PO Full version generates optimum pits that, in addition to the aforementioned
functionalities, allow to control blending restrictions, production by rock type, equipment
hours, metal production, consumption of processing inputs, among others.
Even though it is only a simplified version of DBS Full, SimSched PO Full is the first
commercial tool to offer this sort of technology to the worldwide industry.
We have been presenting results to the market since 2014 when we published 3 articles at
the Brazilian Congress of Mining.
In 2015, we attended at the main international symposium of our activity field, publishing
4 articles, being that we were co-chair in one of the sections.
We participated with a stand at Exposibram 2015.
In the following year we were the international guests to lecture at the I Seminar of Mine
Planning, organized by the National University of Colombia and also at the IV SIPLAMIN, International
Mine Planning Symposium organized by the National University of Engineering in Peru.
We have representations in Brazil, Chile, Peru, Venezuela, Canada, UK and three in Australia.
Despite the distance, we received visits from our collaborators in Belo Horizonte, being
one visit of the Chilean representatives and four of the Australians.
The exhibition of our product on the market has yielded testimonies and positive comments
from several professionals from the field, including PhDs in mining engineering, Competent
Persons, and professors, which can be checked on our website.
Our outreach campaigns have attracted more than 500 SimSched DBS Beta trial requests.
From the more than 2200 people, today's voluntary subscribers of our newsletter, 79%
are from outside Brazil.
We have an easy-to-use software.
The importation is made using a CSV file, a common format in the market, which contains
geological and economical data discretized in blocks, such as densities, grades, slope
angles, economic values, recoveries, among others.
All the parameters can be seen on this screen.
Our software works in a wizard form, in which the parameters are filled step by step.
The main fields to be configured are the possible destinations, their respective production
limits, stockpiles, vertical rate of advance, and minimum bottom and mining widths.
Our results are displayed in 3D and in the form of surfaces.
All periods are sequenced simultaneously.
Charts are generated directly on Excel and the output files are generated in CSV allowing
it to be imported into other mining software.
Our team consists of 17 people, including 6 masters, 1 postgraduate, 7 graduates and
3 undergraduate.
Alexandre Marinho is our CEO, graduated in computational mathematics from UFMG in 2004,
he has been working in the mining field since his graduation and holds a Master's in Mining
Engineering from McGill in Canada since 2012.
Alexandre holds the knowledge of disruptive technology, as well as defining marketing
strategies, business and sales.
Fabrício Ceolin is the CTO and works on product development, technology, digital infrastructure,
fundraising and local sales.
Lucas Rizzo, master and doctoral student, is our main developer of mathematical models.
Octávio Guimarães is a master in mining engineering with over 20 years of experience
in the field and contributes to our business with his experience in traditional software.
Narcélio Filho is our software architect, who transforms knowledge and experience from
the specialists into new functionalities.
Now that we have introduced the benefits of our technology, learn more about the technical
details of SimSched through the links to our channel and presentations available on the
description of this video.
You can use our software for up to 100 days without commitment, with full access to our
support and learning material or carry out a project with us to verify our results.
Contact fabricio.ceolin@miningmath.com for further details.
Thank you.
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