THE PERFECT SINTER PLANT
SOLUTIONS FOR FULLY OPTIMIZEDPLANT DESIGN, PROCESSES AND
SYSTEMS

primetals.com

YOUR CHALLENGEECONOMICAL AND ENVIRONMENTALLYCOMPATIBLE SINTER PRODUCTIONYOU EXPECT• High plant reliability andavailability• Flexibility in raw materials usage• Production stability• Energy-efficient operations

DRASTIC CUTS IN COSTS AND
ENERGY CONSUMPTIONFULFILLMENT OF ENVIRONMENTALREQUIREMENTS

The increasing demand for ironand steel products, primarily driven
by booming markets, substantiallyaffects costs for raw materials, scrap,
logistics, and energy. Steadily rising
prices and intense competition among
steelmakers has sharply reduced
profits. To successfully produce under
extreme cost pressure, all sinter plant
operators must keep their plants
running at peak performance while
minimizing consumption of electricenergy and solid fuel.

Environmental regulations are
growing increasingly stringent
worldwide. This especially affects
sinter plants with their high quantityof emissions, which is a focal point
for the authorities responsible forenvironmental protection. Looming
penalties in the form of CO2 emission
certificates represent a serious threat
to long-term, sustainable growth.
The reuse of waste materials and the
reduction of environmental emissions
from the sintering process is oneof the most important steps for
improving environmental compatibility,
particularly because the sintering
process is one of the major sourcesof emissions within a steel works.
Continuous equipment modernizationand pollution-control measures are
required to reduce the volume of
specific off-gas, dust, and otherharmful emissions.

UNIFORM QUALITY
The main overall goal of sinterplant operators is to achieve a highoutput of uniform sinter quality at
low operational costs. As the main
component in the blast-furnace
burden, the production of highquality sinter is crucial for assuringhigh, stable furnace productivity witha low consumption of reductants.
Sinter quality begins with the proper
selection and mixing of the raw
materials. The chemical properties
must be stabilized by an automatic
adaptation of the raw material mix,
which means that plant operatorsneed an advanced system with theability to quickly react to processfluctuations and aberrant situations
like an inhomogeneous mixture, poor
surface ignition, and incomplete burnthrough of mixed materials.

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The sinter product must satisfy
defined target values with respect tochemical, physical, and metallurgicalproperties deployed in the blast
furnace. The traditional sintering
process is very energy-intensive: there
is great potential for the reduction ofenergy consumption, emissions, andcosts.

PLANT SAFETY AND RELIABILITY
The sinter plant can no longer beseen as a separate or stand-alone
production unit. Instead, it must be
fully integrated with the blast furnace
in order to generate the ideal burden
for optimized production and cost
efficiency. That means plant operators
must consider the use of sophisticatedtracking, diagnosis, and control
models and an overall expert system
to ensure a stable, reliable production.

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OUR SOLUTIONFULLY OPTIMIZED SINTER PRODUCTIONMEETING ALL REQUIREMENTSADVANTAGES OF
PRIMETALS TECHNOLOGIESSINTER SOLUTIONS:• Extensive experience in thesintering process – building
and modernizing sinter plants
for over 5 decades• Efficient project execution –with experienced and reliable
project management

SUPERIOR TECHNOLOGYFULL-LINE SUPPLIER

Primetals Technologies offers
advanced technological solutions
to meet the growing requirements
for cost effectiveness, productivity,
reliability, and environmental
compliance. With our pallet-width
extension technology and Selective
Waste Gas Recirculation System, forexample, you can reduce the quantity
of off-gas in your sinter plant by up to
50 percent. This significantly lowers
not only environmental pollution but
solid fuel consumption.

Primetals Technologies’ integrated
process knowledge makes it the only
global, full-line supplier in the iron andsteel industry. Our technologies meetclient-specific requirements for new
and existing plants, while our services
provide you with both the advantages
and the safety of full turnkey
management. We are able executea customized analysis to ultimately
improve your plant‘s performance,
resulting in better operation andproduction of the overall steel works.
From process and production analysis
that examine sinter productivity,
quality, raw materials, and endproduct logistics to increased material
recycling in the sintering process,which in turn enhances environmental
protection – we will suggest a numberof easy-to-install, stand-alone, andpractical solutions at relatively low
cost to help our customers optimize
operations, reduce costs, improvesinter quality, and improve operationalsafety.

Using the intensive mixing andgranulation system for raw mix
preparation eliminates the blending
yard, drastically reducing spacerequirements and thus sinter plantinvestment costs.
Primetals Technologies’ intensive
mixing and granulation system,
increases plant productivity andallows high bed heights for a large
percentage of even fine ores. Using
these technologies, plant operators
can increase their sinter quality andthus reduce coke consumption andincrease blast-furnace productivity.
ADVANCED ELECTRICS AND
AUTOMATION
Innovative basic automation, processcontrol, and process optimization
created by Primetals Technologies
play a key role in a stable sintering
process and also ensure high system
availability. Our systems generate
major improvements in productivity
and sinter quality by combining
reliable solutions for the power
supply, drives, and automation withtechnology-specific applications.

4• Leading automation solutions– with unique processoptimization and expert
systems for a safe and reliable
production
When it comes to major investments,
there is no substitute for an
experienced partner. Every step in thesintering process – each plant areaand piece of equipment, and theiroptimized design – and the overall
integration required for a highperformance sinter plant all add up
to... Primetals Technologies.

• Continuous improvement –upgrades and lifecycle support
during operation of the sinterplant

COST- EFFECTIVE MODERNIZATIONSAND CUSTOMIZED SERVICES
Modernizations are a cost-effective
alternative to building an entirely
new plant. This type of investment
keeps your plant in the technologicalforefront while preserving its value
and extending its lifecycle. Primetals
Technologies offers customized
metallurgical services, including very
efficient upgrades or replacements,
to bring your sinter plant in line withthe latest technologies. Our lifecycle
management spans the entire service
life of the sinter plant, offering much
more than just after-sales service.

5THE CUMULATIVE BENEFITSAs a leading supplier of complete sinter plants, Primetals Technologies provides
engineering, design, and equipment as well as integrated automation
solutions. Specific technology packages for superior sinter production andquality, plant availability, and cost effectiveness are highlighted below.

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Raw-material handling system.......................Page 8

2Intensive mixing and granulation system....Page 9

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Selective Wastegas Recirculation System.Page 10

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MEROS..................................................................Page 115Sinter Machine................................ ....................Page 126Sinter Cooler........................................................Page 13

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Screening Station..............................................Page 147

RAW-MATERIAL HANDLING SYSTEM
FOR A SUPERIOR BLEND OF THE RAW MIX

IMGS(R) MIXING AND GRANULATION SYSTEMFOR THE HIGHEST HOMOGENEITY OF
RAW-MATERIAL MIX

Proportioning bins under construction

Material transport at its best

Raw material mix to intensive granulator

RAW-MATERIAL BINSSTOCKYARD AND CONVEYOR SYSTEMSFor the proportioning of the raw mix, Primetals
Technologies has engineered specially designed rawmaterial bins. The bins are designed to avoid “bridging”
of the materials within the bins and to reduce thesegregation of coarse and fine particles during charging
and discharging. Segregation in the bins during charging
and discharging occurs in different ways at different bin filllevels. A higher number of bins allows for the simultaneousdischarge of a single ore type from at least two bins withdifferent fill levels, which compensates for the varying
segregation of the coarse and fine ore particles during
charging and discharging.

Primetals Technologies’ robust and powerful equipment
for the stockyard (stockpiles, stacker, reclaimer/bridge
reclaimer), and belt conveyor systems ensure a reliable
and efficient piling, reclamation, and transfer of different
bulk materials (including iron ore, iron concentrate,
limestone, and coke) to the stockpiles and to or fromthe sintering process. All material-handling systems aredesigned to minimize and optimize the overall handling
operation. The result: a significant decrease in investment
costs, improved overall logistic process, and homogenizedmaterial quantities. The ability to blend different products
gives plant operators much more flexibility in securing theirplant’s future. And all solutions are available from a single
source.

Excellent homogeneity and high permeability of thesinter raw mix are decisive factors in achieving high sinterproductivity and quality with reduced consumption ofenergy. With a conventional mixing drum, only a very
limited homogeneity of the sinter raw mix can be obtained.
To remedy this problem, Primetals Technologies developed
the intensive mixing and granulation system, which consistsof an intensive mixer and granulation aggregate. The sinterraw materials (like coarse as well as fine iron ores, ultrafine ores/pellet feed, additives, dusts, solid fuels, returnfines, and recycled materials from the steel plant) arecontinuously fed into a high-speed intensive mixer wheremacro- and micro-mixing of the sinter raw mix takes place.
After the mixer, the material is transported to the drum or
intensive granulator where the material granulation takes
place. The mixing devices can be individually adjusted
to changing requirements. Sinter pot grate tests can bepreformed with actual raw materials in order to back up theenvisaged plant performance with proposed equipment.

The discharge of raw materials by dosing weigh feeders
from the bins is controlled by the “real-time dosing system.”With this control system, the desired mixture composition
will conform to predetermined ratios throughout the entire
operation. Specially designed bins for handling very fineiron ores preventing, bridging and minimizing potenzial
outflow problems.

MAIN BENEFITS• Excellent homogeneity of the raw mix• Higher precision in the proportioning of raw materials• Greater flexibility in changing raw-material

MAIN BENEFITS• Recipes in the shortest possible time

• Excellent homogeneity as a result of turbulent mixing andimproved preparation of the sinter raw mix

Vertical intensive mixer• Capacity to mix higher ratios of iron-ore ultra-fines (pellet
feed)• Improved sinter quality with reduced standard deviations(greater homogeneity)• Reduced coke consumption• Pre-blending/blending yards are not needed• Nodulizing phase at the intensive granulator is possible• Predictable plant performance due to pot grate tests
Horizontal intensive mixer

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UNMATCHED EMISSION REDUCTIONENVIRONMENTAL EMISSIONS FROM SINTERPRODUCTION REDUCED TO UNATTAINED LEVELS

Selective Waste Gas Recirculation System

MEROS plant voestalpine Stahl, Linz, Austria

SELECTIVE WASTE-GAS RECIRCULATION SYSTEMMEROS®

MAIN BENEFITS

Primetals Technologies has developed and implemented
new technologies that enable environmental emissions fromsinter production to be reduced to therefore unattainedlevels. This has been achieved with the introduction of
a Selective Waste Gas Recirculation System in which theoffgas from selected zones of the sinter machine is mixed
with cooler off-air and is then recirculated to the sinterstrand. The selective waste-gas recirculation system wasdeveloped initially to keep the off-gas volume at a constantlevel while increasing the sintering capacity and decreasing
specific emissions. This allows investment and operating
costs for gas-cleaning facilities to be held at acceptablelevels. The selective waste-gas recirculation system from
Primetals Technologies can be installed in existing or ingreenfield plants with or without capacity increase.

MEROS is an innovative technology developed by Primetals
Technologies to reduce polluting emissions from sinterplants. Through the use of specific additives, the polluting
components in the gas flow are combined and separated
in a connected fabric filter. The process is “semi-dry” andtherefore 100 percent effluent-free. The standard official
limit values can be obtained through the installation of
MEROS Technology.

• High removal efficiency for heavy metals, acidgases, and dioxin/VOC due to countercurrent flow
injection of additives

MAIN BENEFITS• Waste-gas volume cut by up to 50 percent• Specific solid-fuel consumption decreased up to 10
percent• Lower investment and operating costs for waste-gas
cleaning plant• Level of productivity and sinter quality is maintained

RESIDUALS UTILIZATION AT SINTER PLANTS

Gas-tight waste-gas recirculation hood

Primetals Technologies’ approach increases the input ofrecycled materials into sinter plants, a proven economicalroute for the in-plant by-products of integrated steel works(like dusts, sludge, and scales). The resulting effects on
sinter quality, emissions, and gas-cleaning facilities aretaken into consideration as well. Limits on the emissionof sinter waste gas and quality parameters of the sinterproduced are the two most important limiting factors.

• Low quantity of recirculation dust, and therefore
fewer filter pulse-cleaning cycles and lesscompressed air required for filter cleaning• Avoidance of system sticking due to dry dust
recirculation• Reduced mechanical stress to the filter bags
applying low-pressure cleaning pulses• Controlled and constant process temperature as
the basis for efficient desulphurization• Flexible gas desulphurization with Ca(OH)2,
supported by NaOH during peak concentrations• Reduced filter space requirements with eight-meterlong filter bags

The typical benefits of this approach lie in the use ofwaste materials, which are normally rich in iron, flux, andfuel value. Therefore it is possible to generate savings in
disposal costs, which are also cut by the replacement of
raw materials.

• Decreased CO2 emissions• Lower specific emissions of SOx, NOx, PCDD/PCDF, andheavy metals• Reduction of the freight (t/hour) up to 50% for SOx, NOx,
Dust, PCDDF’s, CO, CO2, etc

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SINTER MACHINE
SMART PALLET-CAR AND IGNITION FURNACEDESIGN FOR OPTIMAL SINTER CAPACITY

SINTER COOLEREFFICIENT COOLING AND REDUCED ENERGYCONSUMPTION

Pallet-car width extension

Ignition furnace

Evenly distributed sinterSinter cooler heat recovery

PALLET-CAR DESIGN AND TRAVELING GRATEIGNITION FURNACEADVANCED COOLER CHARGING CHUTE

HEAT RECOVERY SYSTEMThe Primetals Technologies pallet design – featuring gratewing pallet cars – offers a highly economical solution for
application in new sinter plants as well as for increasing
the capacity of existing plants. Gas-tight rim zone covers
significantly reduce the volume of false air in the sidewall areas of the pallet cars compared with conventional
designs. This leads to a major reduction in the quantityof waste gas and improved sintering at the side-wallareas. The result is a decreased quantity of return fines,
contributing to enhanced sinter plant productivity. Palletcar extension technology from Primetals Technologies
represents a practical and economical solution forincreasing the sintering area, and therefore sinter-plant
production capacity, by up to 12 percent. This solution canbe applied without modifying the supporting structure of
the sinter machine.

Primetals Technologies’ ignition furnace operates withintensive top burners for better heat distribution on thesurface of the sinter strand: and, due to its special design,it also delivers lower fuel consumption compared withthe conventional side-burner design. Typically Primetals
Technologies ignition furnaces have an inner length ofapproximately 3,300 millimeters when retrofitted in anexisting plant, which typically increases the active sinteringarea. The intensive ignition furnace with state-of-the art top
burners features an advanced flame monitoring and gas
control and regulation. This enables steady and constantignition with temperatures of approximately 1,200°C or
above. An additional benefit is that a very short installation
period is guaranteed thanks to the preassembly proceduresfor the ignition-furnace chamber.

The advanced design of the cooler charging chute ensuresa more homogeneous distribution of the sinter onto thesinter cooler, keeping pieces with larger diameters near
the bottom and the smaller at the top. This increases
cooling performance, reduces fan power consumption, andprevents damage to associated equipment.

To further improve sinter plant energy efficiency, we offer
a number of different types of heat recovery systems thatcan be installed at the sinter cooler, where the sensible heatof the off-air is used to generate electric energy or processsteam.

MAIN BENEFITS• Better heat distribution on the surface of the sinter strand• Short sinter-strand downtime for modification work (preassembly)• Reduced false-air intake for improved sinter quality• Reduced volume of waste-gas and therefore lower
energy consumption• Increased production up to 12 percent (when combinedwith other technology packages, a higher output can beobtained)

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MAIN BENEFITS• Lower fuel consumption compared with the conventional
side-burner design

CIRCULAR DIP-RAIL COOLER
The sinter cooler is designed based on Primetals
Technologies’ patented grate-wing cooler troughtechnology to meet your requirements for higher efficiency
and lower electrical energy consumption. The grate-wing
design has special rubber seals between the moving
cooler trough and the air-channel system that produce
a more efficient utilization of the cooling air. Applying
the new design to an existing conventional circular sintercooler allows the cooling capacity to be increased byapproximately 15 percent without increasing the coolingair volume, and maintains the existing structure with minor
modifications.

There are three possible heat-recovery options from thecooler:• Preheating of combustion air for the ignition furnace andpost-heating of the freshly ignited sinter• Selective waste Gas Recirculation System, providing coke
and CO2 conservation• Waste-heat recovery plant for steam and/or electric
power generation
MAIN BENEFITS• Lower investment and operational costs• Decrease in specific energy consumption• Rapid and constant ignition• Higher cooling efficiency, resulting in decreased volumeof specific cooling air• Short installation period• Smooth sinter handling• Increase of active sinter area due to shorter ignition
furnace• Recovery of sensible heat at cooler

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SCREENING STATIONFOR THE BEST SINTER PRODUCTUNIQUE MODERNIZATION SERVICESCOMPREHENSIVE EXPERTISE THROUGHOUT
THE ENTIRE LIFECYCLE

Typical screen

Circular sinter cooler

After being cooled, the sinter product is fed to the crushingand screening station. There the material is downsized to
be used in three different applications: return fines to thesinter process, hearth layer, and blast furnace burden. The
small grain particles are recirculated back to the sinterprocess, the mid-size particles are usually used as hearth
layer to protect the pallet cars, and the larger-size particles
are transported to the blast furnace.

Primetals Technologies has decades of experience inthe sintering process and all the products and systems
required to provide our customers with a full assessmentof their sinter plant facilities and productivity. We can offer
a unique range of services, including revamps, retrofits,
and capacity-increase packages for a complete sinterplant modernization. Plant modernization can include
replacement of obsolete equipment, plant upgrades, andconstruction of new plant units with maximum leverage ofthe existing infrastructure.

MAIN BENEFITS• High efficiency (undersize/oversize grains <5 percent
each)

To improve the efficiency of existing plants, we can provide
a number of alternatives ranging from individual equipment
replacement to extensive plant rehabilitation, adapted toeach customer’s individual needs.

• Reduced wear on pallet cars and increased permeability
due to hearth layer• Reduced maintenance downtime of the plant• Smooth handling of the sinter material

Screening mats

MAIN BENEFITS• Elaboration of performance improvement potentials• Increase in plant availability and productivity• Operating cost reductions• Extended plant lifecycle• Fulfillment of the increasing demands of environmental,
health, and safety regulations• Primetals Technologies’ technological and service
leadership• Smooth operation with robust equipment• Individual configurations with or without standby

SINTER PLANT STUDIESWith each customer, we design a customized evaluationthat analyzes all critical areas, requirements, and concerns.
The outcome will be a proposal of a range of improvements
and adaptations, with the overarching goal of enhancing
plant performance and keeping your plant up-to-date andready for present as well as future demands.
Our service portfolio includes:• Raw-material and sinter pot tests• Operational consultation and plant assessment (including
startup and shutdown support)• Cost-efficiency measures• Economical and technical feasibility studies• Research and analysis services• Expert training on- and off-site• Utilization of waste materials (residuals)

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SINTER PLANT PROCESS AUTOMATIONMASTERING THE COMPLEXITY OF SINTER PLANT
OPERATION

Sinter plant control room, voestalpine Stahl GmbH, Linz, Austria

SINTER PROCESS CONTROLSINTER PROCESS OPTIMIZATION

CLOSED-LOOP SINTER EXPERT SYSTEM

Knowledge and experience accumulated by our specialists
combined with innovative technologies are the decisive
factors to lift your sinter plant to the next level ofautomation. Understanding our business as being partner
to our clients, we deliver a proven and cost-effective
solution from one single source.

Sinter process optimization is an innovative processoptimization system that lifts plant automation to acompletely new level. Our solution is based on a well-tested
and proven basis system which guarantees the highest
availability and efficiently combines data-acquisition,-processing and -visualization. Over the last 20 years thesystem has demonstrated its reliability and cost savings inmore than 60 installations all over the world.

The closed-loop sinter expert system was designed
according to the principle ‘As few actions as possible, as
many as necessary’ with the target to enable an optimized
sinter operation requiring minimal operator interactions.

We can draw on substantial engineering and operation
know-how covering the complete sinter plant lifecycle.
Our many years of experience in realizing sinter plant
automation projects all over the world enable us to masterall upcoming challenges immediately and to the point.
The efficiency of the automation strongly depends on theproper instrumentation. We provide the right instruments
at the proper place and fit them seamlessly in our
automation solution.
A reliable process control system is the basis for yourtransition to Industry 4.0. Established and efficienttechniques such as server virtualization increase system
flexibility and availability and help you to save hardware-,and maintenance costs. The latest industrial Ethernet
technologies and proven hardware architecture warranta maximum performance while keeping the highest IT
security levels. Particularly when the technical and strategic
course is set to allow a business to efficiently make themove to become a Smart Factory.
The concepts of flexible thinking, bold innovation andintelligent measurements will play an ever more importantrole in the future to ensure a flexible and trouble-free
production.

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A broad spectrum of raw data sources (front-end signals,
amount of material charged, laboratory data, events, model
results, cost data), is stored over the whole plant lifetime.
Specialized tools are provided where process information
can be linked to analysis’ data and raw mix recipes.
Flexible interfaces, modularization and state-of-the-art
software architecture provide the means to easily adapt
and maintain the system in an ever changing environment
with respect to raw materials, operation philosophy andconnectivity to 3rd party systems.
On top of the robust basis system numerous interacting
process models support the operators and metallurgicalengineers in their daily decisions. Plant specificrequirements are incorporated into these metallurgicalprocess models.
End-to-end transparency in real-time through up-to-date
data visualization and metallurgical process models lead
to better collaboration, improved workflows and reduced
errors while supporting decision-making.

The expert system - which is designed as a rule based
decision system - counteracts process fluctuations causedby changes in the raw mix composition and quality, humanfactors or process conditions. The sooner the system
responds to an abnormal or changing process situation,
the smoother the overall sinter operation will be. The
accurate timing of control activities and anticipation of
disturbances are of utmost importance to avoid criticalprocess conditions and to maintain a high production rate
at low costs.
After numerous successful installations Primetals
Technologies is in a position to guarantee significant
improvements of the product quality and reduction of fuelconsumption with the available raw materials.
At shell, we sustainably optimize and control your assets
for lifecycle value through the integration of numerous
packages to forge a bridge from the intelligent closed-loop
controls to a fully automatic product analyzing equipment.

ADVANTAGES OF OUR SINTER PROCESS AUTOMATIONSOLUTION• High productivity – keep the sinter plant running at peak
performance while minimizing consumption of electricenergy and fuel• Product quality – maintain the chemical properties ofsinter at the desired levels• Reduced fuel consumption – as a result of the precise
mixing of charged materials - the quantity of return fines
is ideally controlled considering the thermal conditions of
the sinter on the strand• Stable and shift-independent operation – best-practicesinter operation 24 hours a day to ensure efficient
production• Easy integration – a comprehensive range ofmetallurgical models and packages that can be easily
integrated into any existing automation environment• Fast response to market demands – to react quickly andflexible on market requirements as well as on unexpected
situations.
• Lifecycle service service and support – for upcoming
system extensions after startup guarantee sustainable
benefits• Quick amortization – the standard period can be
expected to be less than one year17

EXCELLENCE FROM EXPERIENCESELECTED SUCCESS STORIES WITH
PRIMETALS TECHNOLOGIES18ENVIRONMENT-FRIENDLY SINTER PLANTHIGHER OUTPUT WITH ADVANCED AUTOMATION SOLUTIONS

Customer. Dragon Steel Corporation, Taiwan
Type of plant. Sinter plant no. 1 (248 m²) and no.2 (387 m²)
Our solution. A sinter plant including IMGS mixing and granulation system,twin-layer charging, grate-wings pallet cars, Selective Waste Gas Recirculation
System, waste heat recovery system, DeSOx and DeNOx, DeDioxin plant.
The result. The most sophisticated, environment-friendly sinter plant with low
consumption figures.

Customer. Jindal Steel & Power Limited (JSPL), India
Type of plant. Sinter plant (490 m²)
Our solution. A sinter plant including IMGS mixing and granulation system,
grate-wings pallet cars, Selective Waste Gas Recirculation System and SinterOptimization level 2 expert system .
The result. Most sophisticated, and one of the largest sinter plants with low
consumption figures in India.

INCREASE OF PRODUCTIVITY WITH REDUCED FUEL CONSUMPTIONEXCELLENT MIXING FOR HIGHEST HOMOGENEITY

Customer. Nanjing Iron & Steel Group, Nanjing, China
Type of plant. Sinter plant no. 2 (360 m²)
Our solution. Installation of latest generation of Sinter Optimization systemsystem, including closed-loop expert system.
The result. Decrease in total specific fuel consumption, increase in productivity,
reduced sinter quality variation, reduction of internal return fines.

Customer. Usiminas (Ipatinga and Cubatao site), Brazil
Type of plant. Sinter plants No. 1 and No. 2 (Ipatinga), Sinter plant No. 3(Cubatao)
Our solution. Design, engineering, supply, and services for an intensive mixing
and granulation system, including a dedusting and material handling system.
The result. Enables the use of pellet feed in the sintering process for improved
sinter quality.

IMPROVED ENERGY CONSUMPTION THROUGH SOPHISTICATED COOLINGUNIQUE COOLER CHARGING SYSTEM AND COOLER HOOD DESIGN

Customer. Rashtriya Ispat Nigam Ltd., Visakhapatnam, India
Type of plant. Sinter plant no. 1 (240 m²)
Our solution. Engineering and supply of circular dip-rail cooler and gratewing cooler troughs: project management, supervision for construction andcommissioning, featuring optimized segregation and charging chute.
The result. Decreased energy consumption and operational costs.

Customer. ILVA S.p.A
Type of plant. Sinter plant (473 m2)
Our solution. Installation of Primetals Technologies' patented cooler charging
chute, increase of efficiency of sinter coolers and installation of new cooler
hood on complete open area of sinter cooler
The result. Lower sinter discharge temperature, optimized hot air temperature
to WHRS and reduced dust emission.

REDUCED EMISSIONS FOR LONG-TERM ENVIRONMENTAL COMPLIANCE

SINTER CAPACITY INCREASED BY 30 PERCENT

Customer. POSCO, Pohang, Rep. of Korea
Type of plant. Sinter plant no. 3 (504 m²) and No. 4 (436 m²)
Our solution. Design, engineering, and supervisory services for the sinterplant‘s Selective Waste Gas Recirculation System.
The result. Lower CO² emissions.

Customer. voestalpine Stahl, Linz, Austria
Type of plant. Sinter plant 250 m²
Our solution. Enlargement of the sinter area by lengthening the sintering
strand and installation of Selective Waste Gas Recirculation System.
The result. Increase in sinter capacity by 30 percent with the same quantity ofoff-gas.

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Primetals Technologies Austria GmbHA joint venture of Mitsubishi Heavy Industries and partners

Turmstrasse 44
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Brochure No.: T01-0-N029-L4-P-V3-EN
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in this document contains merely general descriptions or
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These estimates and assumptions have to be analyzed on acase-to-case basis and might change as a result of further
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