ote outotec flotation technologies eng web
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Outotec is the world leader in flotation technology. We
set new standards for superior flotation performance:
mixing, aeration and froth recovery for every
flotation task. Our solutions are tailor-made for each
customer, including flotation packages with support
services, modular process sections and even whole
concentrators for base and precious metals and
industrial minerals.
Benefits
Case-proven metallurgical superiority
Minimized capital expenditure through
optimum cell size and minimal footprint Minimized operational cost through
efficient hydro-dynamics, robust designs
and advanced materials
High availabily throught easy and safe
maintanances
OutotecFlotation technologies
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002 Outotec Flotation technologies
Flotation technologies for maximizing
metallurgical performance and availability
Time-proven, innovative and efficient solutions
Our Flotation offering is based in the earlier mining
and concentrator operations of the Outokumpu
corporation. Development of in-house flotation cells
started in the 1960's to satisfy the need for more
efficient, more reliable and easy-to-use equipment.
This development has led to many innovative products
and processes. For decades, we used to call these
flotation technologies with the well-known brand
name OK.
Outotec continues to offer you the same competitive
advantage with flotation technology that has evolved
through decades of continuous R&D and experience.
Forty years in business prove our commitment to
customers as well as the operational reliability and
performance of our equipment.
Our automation and analyzer solutions offer oper ators
the perfect tools to enhance flotation performance.
In addition, our froth management technology and
particle-size-specific flotation lead the field for
optimizing recovery in every application. We are ready
to serve you at any time in whichever corner of the
world you operate.
Our Flotation concept:
Performance driven tailoring
Flexibility in operation
Responsive controls
High availability
Easy and safe maintenance
Commitment throughout the life span of
the operation
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Outotec Flotation technologies 003
Chile
Successful site tests and TankCellinstallations have proven that the cells are easy to operate. Control
tools, especially the air control, are very good and the metallurgy is excellent. Operating and maintenance
costs are also low. Heavy-duty manufacturing of all flotation units and top-quality components are highly
appreciated.
Assistance and services used most often include training of operators and maintenance staff,
proposals for inspections and preventive maintenance activities as well as spare parts recommendations.We also make suggestions for process improvements. Our customers appreciate that we work as partners
with them and give them the service they need. We know the process and can really assist them.
Flotation cell to match your application
Flotation is a technology with over 100 years of
history, yet now the development in our of ferings
is more rapid than ever. To yield maximum profitsin applications with various part icle sizes, we have
specialized designs for each in the flotation cell. The
heart of the cell is the mechanism which creates the
bubble-particle interactions, and equally important
critetrion is efficient froth recovery.
New Outotec FloatForcemechanisms
To replace and excel on the proven OK-mechanism in
MultiMix and FreeFlow configurations, a whole family
of new FloatForce mechanisms has been launched.
The FloatForce mechanism maximizes bubble and
particle contact in the shear zone between the rotor
and stator. The strong shear forces produce suf ficient
energy for fines to break through the water film
energy barrier on the air bubbles.
To complement metallurgical performance, the
FloatForceis also more energy-efficient than anything
before. The mechanism keeps the slurr y in motion
without excessive turbulence. Coarse par ticle contact
with air bubbles is maintained by strong and gentle
mixing to permit maximum recover y by minimizing
bubble-particle detachment.
This new FloatForcemechanism is not only
available in new Outotec flotation deliveries, but also
for existing installed OK, SkimAirand TankCell
equipment to replace MultiMix and FreeFlow
mechanisms.
Optimum aeration at any altitude
The forced air flotation principle ensures optimum
aeration at any operating altitude. Our blower systems
are always designed to the specific site conditions.
Easy start-up under full load
The unique, downward-tapering rotor enables fast
start-up under load after a scheduled or unscheduled
shut-down.
Froth management leads to high recovery with
optimal grade
Another flotation challenge is to keep the froth in
constant motion to ensure high recovery or to make
maximum concentrate grade. Our flotation units
feature patented froth crowders to flexibly manipulate
the froth and keep it in continuous motion.
Special launder designs
High-capacity internal launders, double launders
or flexible high capacity radial launders recover the
concentrate quickly, thereby reducing drop-back,especially of the coarsest particles.
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004 Outotec Flotation technologies
Outotec TankCellflotation units
superior performance
Maximum return on investment
We have a simple goal to maximize your return on
investment. Our design philosophy is to provide you with
the best long-term investment. As operators, we under-
stand the value of every 1% in throughput, grade andrecovery.
TankCellunits as unit reactors meet all the requirements set for superior flotation performance.
They are easy to operate, low on power and air consumption and allow for a flexible layout. Further,
the TankCell family comprises the widest size range on the market.
Over the lifetime of the Outotec flotation units,
operating costs have proven time and again to be by
far the lowest. High reliability and low maintenance
enable trouble-free oper ation, contributing to a rapid
return on investment.
Our flotation units are built to last. Components
and electrical equipment are selected for maximum
operating life. For instance, our rotors and stators
have proven to be the most wear-resistant available.
The wide range of available cell sizes permits plant
design to be compact, economical and efficient, without
fear of short circuiting, even for todays high-tonnage
operations. Fewer units mean substantial savings in
construction costs, piping, cables, instrumentation and
auxiliary equipment.
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Outotec Flotation technologies 005
Outotec TankCelleSeries
The cylindr ical TankCell excels in performance as a
rougher, scavenger or cleaner and currently leads theworld in fl otation technology. We use our knowledge
of froth crowding and froth transport characteristics
to adapt the basic design to the demand of dif ferent
flotation duties.
The wide range of proven cell sizes from 5 m to
500 m and the symmetrical design allow a flexible
layout. Internal dart valves minimize the footprint
Superior mixing and minimized short circuiting
The cylindr ical TankCell with the FloatForce
mechanism operates as an ideal mixer and maximizes
the number of collisions between the mineral
particles and air bubbles, as well as reducing short
circuiting.
Optimized aeration and froth recovery
TankCell units have an optimized froth surface area
based on the mineralogy and kinetics in each case.
They are designed to handle maximum carrying r ates
and lip loadings for the specified task.
Availability and Efficiency
With large cell size, the reliabilit y of single equipment
becomes critical. Countless hours of fluid dynamics
analyses and mechanical engineering have allowedus to build ever larger cells that with extremely high
reliability.
Our flotation cells are designed and built with
availability being a key criterion. They tolarate
fluctuating feeds and even oversize material without
blocking up. Mechanical components are carefully
sized to minimize vibration and loading; wear parts
provide easy and safe maintenance.
The new eDrive has beed built will all of the above
criteria. As a result, it combines ease of maintenance,
top-notch efficiency and compact design.
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Outotec SkimAir flotation units
profit-makers in the grinding circuit
Outotec is known as a forerunner in bringing new technologies to the market. No one comes close when it comes to
understanding and utilizing particle dynamics and froth management. Our flotation approach focuses on flexibility
and circuit optimization. Our various types of flotation mechanisms have proved capable of handling all kinds of
flotation processes. Reliability and ease of use are the keys to our continued success.
006 Outotec Flotation technologies
OutotecFlash Flotation
In conventional Flash Flotation, we look for grade. The
Outotec SkimAirflotation unit is used as a stand-
alone cell in a one-stage process for producing a
high-grade concentrate.
Outotec Flash Roughing
OutotecFlash Roughing is recovery-driven. SkimAir
operates using Dual Outlet Technology, which has
world-wide patent coverage, to produce a lower-grade
concentrate at a high recovery. Flash Roughing can
comprise two stages: the SkimAir unit is used as the
rougher, and a special TankCell is closely linked as thecleaner.
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Outotec Flotation technologies 007
Australia
Outotec is number one in Australia due to the development, successful testing and installation of large
TankCellunits. The largest Flash Flotation SkimAir cells have also been developed and successfully
installed for the Australian market.
Our locally-based technical and engineering team, operating with ISO 9001 certification, can quickly
respond to customers and engineering companies. This applies to bid requests as well as solving on-site issues.Our quotations have general arrangement drawings in electronic form for further processing as initial plant
layouts.
Outotec Flash Roughing flowsheet.
Outotec SkimAir
OutotecFlash Flotation or Flash Roughing by the SkimAir flotation unit takes place in the grinding stage.
Main customer benefits of Outotec SkimAir:
Minimal overgrinding
The Outotec SkimAirunit floats the valuable
liberated particles from the circulating load of thegrinding process while still relatively coarse. These
liberated particles are not ground fur ther and do not
enter the main flotation process as slime par ticles
with poor recovery.
Improved overall recovery
SkimAir recovers considerable amounts of valuable
minerals, resulting in a more stable feed to the
conventional flotation circuit. This creates extra
capacity and improved control in the existing flotationprocess.
A lower-grade concentrate with high recovery can be
obtained and blended with the higher grade SkimAir
concentrate to increase the overall plant recovery.
Increased mill throughput
Along with flotation improvements, the grinding mill
throughput can be increased due to the controlled
high density of the SkimAir underflow.
Improved dewatering
Dewatering improves because the final concentrateP80 is coarser due to the elimination of fines.
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All under control
Outotec offers the widest range of flotation solutions available to meet all application needs. Each flotation
unit can be delivered complete with a customized package of our automation or on-stream analyzers.
008 Outotec Flotation technologies
Outotec's range of flotation equipment
TankCell for rougher, scavenger and
cleaner flotation
SkimAir for conventional Flash Flotation or
Flash Roughing in the grinding circuit
Conventional flotation cells for rougher, scavenger
and cleaner flotation
Modular Process Sections
Sub-assembled process sections are cost-effective
and fast to bring into operation. These modules are
practical for transportation, and easy to assemble and
install in the fi eld; customized automation, sampling
arrangements and analyzers are included. Supervision
services and training complete the package.
Service across the globe
Our first class equipment is backed up by first class
people. We provide rapid service to help you achieve
high availability and optimized production rates. We have
highly-trained personnel dedicated to serve you on all
continents and geographical areas where mining and ore
beneficiation are taking place.
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Outotec Flotation technologies 009
Top safety
Operational safety is one of the primary design criteria
and it also applies to the choice of components
All units carr y the European CE mark. Reducing
environmental impact is always the starting point in
the design of all Outotec systems. Our equipment is
designed for the highest operational cleanliness.
OutotecFrothMaster Froth Image Analysis and
Control
The on-line OutotecFrothMaster froth image analysis
and advanced controls fur ther enhance the operation
of the cells. Froth motion and bubble analysis coupled
with higher-level controls for air feed, f roth depth
and reagents provide a unique way to optimize the
concentrate mass pull and grade.
The FrothMaster high quality live video feed and easy
readouts provide the operator an accurate feel of the
process continuously.
Outotec CellStation Operator Interface
We also offer a unique control solution for flotation
units the CellStation. As a stand-alone control panelpositioned on the deck of the flotation cell, it replaces
conventional field controllers and performs a variety of
additional functions. It can be linked to the Outotec family
of analyzers and any plant process control system.
The PLC based CellStation has easy to use graphical
touch screen display to follow control loop status, trends
and to adjust set points for flotation air and slurry levels.
EXACT level
In real life, periodic and uncontrolled plant surges
and large fluctuations in the flotation feed are not
uncommon. The EXACT level control solution is
designed to monitor upstream processes and feeds a
compensation signal to the cell level controller before
disturbances interfere flotation performance.
The EXACT level is based on feed forward control
principles and unique automatic tuning functionality. It is
conveniently embedded into the CellStation as a plug-
in, and requires no extra instrumentation.
The CIS countries
Outotec has had long experience of modernizing existing plants in the CIS. The company has also delivered
complete new plants, comprising equipment for flotation, thickening and filtration as well as related automation
and analyzers. Years of experience in this market have facilitated timely deliveries and smooth co-operation.
Our designers and specialists all have plant metallurgical backgrounds from similar ore processes.
We have a long tradition in equipment manufacturing, which is complemented by easy railway transportation
from Finland to the CIS.
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010 Outotec Flotation technologies
Proven to
be superior
100
50
0
Fraction size, microns
Tankcell
Other
Case study: superior size-by-size recovery of Outotec TankCell.
3
2.5
2
1.5
1
0.5
00 5 10 15
Tankcell
Other
Targetreductionbelowo
ne
Case study: fast kinetics of Outotec TankCell.
Market leader
Outotec is the technology and market leader. Our
commitment to clients and their needs, continuous
R&D and proven abilit y to commercialize novel
technologies and improvements have resulted in usholding a majority share of the market.
The best, all the time
We have experience beyond others. Our client plant
audit services have contributed to optimized plant
performances. From the 1970's onwards, Outotec has
developed solutions for many specific flotation tasks,
from base metals to oil sands separation.
In all of the independently organized comparative
studies between competing flotation technologies,
Outotec has always been reported to be superior in
terms of metallurgical performance.
The chart above illustrates the dif ference in recovery
between TankCell and competing technology in actual
plant operation. The size-by-size results show that in
some size fractions the increase in recovery was over
20 percentage units. Based on four cell comparative
test, the client decided to retrofit the competingtechnology. The total plant recovery was improved
as a consequence, and the payback time for the
improvement was very short.
Most efficient technology available
TankCell is known to have the fastest flotation kinetics
available; this has been proven by fullscale tests in
South America, Canada, Europe and Australia. In the
flotation kinetics case study depicted below, Outotec
TankCell was able to make the required ganguereduction from the feed with 10 minutes' retention
time, which is much faster than competitors' 15 minutes'
retention time.
Canada
We value the Outotec flotation units because they suit the specific purpose and have a metallurgically bene-
ficial design, meeting or exceeding metallurgical expectations in terms of grade and recovery. Operation is
trouble-free. Compared with competitor units, the Outotec units operate at low power consumption.
As a company, our expertise in recommending the cells, cell sizes and cell placement is recognized,along with our design and application competence. Similar application references, quality of after-sales
performance and on-site service are highly appreciated by our customers.
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Outotec Flotation technologies 011
Outotec services
improve your
process
performance
Outotec's comprehensive technology transfer package
can be completed with expert services and support. Our
customer service operates through a global network of
local units that offers not only assistance meeting the
customers' needs but also a commitment to providing
advanced customer support whenever needed.
Our service experts provide punctual spare parts
logistics, maintenance and training, as well as
assessment and consulting services that generate acompetitive advantage for you.
We can tailor services efficiently to your specific needs,
when considering the necessary operational and
maintenance services already from the beginning of
the project. As your trusted service partner, Outotec
ensures an optimized operation for the entire lifetime
of your plant.
Equipment services
Obtaining all spare parts and maintenance from the
same organization as process and equipment design
ensures that your plant runs optimally. We make
sure that you receive only the highest quality parts,
consumables and upgrades, that can be seamlessly
integrated into your plant.
Plant and process support services
Outotec's advanced plant and process assessment,
ef-X Efficiency Explorer, indentifies the areas for
potential improvements, e.g. equipment, automation
systems, metallurgical processes and complete plants.
What is more, we can make it much easier for you to
fulfill current and future legislation, by ensuring that
your plant and processes are running as efficiently as
possible, and that maintenance is being carried out
proactively. New Virtual Experience Training enhances
users knowledge and skills to manage the dynamic
environment of operating a flotation circuit and the
entire concentrator plant.
Total service package from Outotec:Equipment services
Spare parts and spare parts management
Equipment inspections and maintenance
Training
Process support services
Process assessment
Process control analysis
Plant services
Plant assessments
Operation and maintenance support ser vices
Upgrades and modernizations
Shutdown maintenance services
Benefits of Outotec services
Critical original spare parts in stock
Process and equipment know-how
Minimize downtime and unscheduled
stoppages
Maximum operating performance
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www.outotec.com
Copyright 2011 Outotec Oyj. All rights reserved.
Outotec develops and provides technolog y solutions for the sustainab le use of Earths natural resources.
As th e glo bal le ad er in mi ner al s an d me tal s proc essing te ch no lo gy, Out ot ec has dev elo ped ov er dec ade s
sev er al br ea kth ro ug h te ch no log ies . The co mp an y al so of fe rs inn ov at ive sol uti on s fo r th e ch em ic al
industry, industrial water treatment and the utilization of alternative energy sources. Outotec shares are
listed on the NASDAQ OMX Helsinki.
Finland,
November2011.