ELECTRIC ARC FURNACEFOR THE TRANSITION TO ELECTRICSTEELMAKING AND GREEN STEEL

primetals.com

ELECTRIC STEELMAKING
THE TRANSITION FROM CONVENTIONALSTEEL PRODUCTION TO THE USE OF
ELECTRIC ARC FURNACESONE PARTNER FOR ALL NEEDS
Primetals Technologies builds
close partnerships with customers
and offers solutions for the entire
production process:• Electric arc furnaces for decarbonized steel production• Automation solutions for optimized processes• Environmental technologies toprotect humans and nature• Power solutions for optimum
distribution and quality

THE TRANSITION TO “GREEN STEEL”

ELECTRIC ARC FURNACE

The increasing demand for sustainable“green steel” has led to a rethinking inthe steel industry. In this challenging
market, producers who wish to remaincompetitive are pressed to revamp
their plants toward environmentallyfriendly processes and products. To
achieve this, new advanced technologies are required, which must integrate
into existing structures.

In recent years, electric steelmaking has been the driving force of thesteel industry. No other steelmaking
technology has experienced a similar
growth rate or developed at such highspeed in recent years as the electricarc furnace.

ELECTRIC STEELMAKING
Using electric arc furnaces (EAF) offers innovative solutions to minimize
the environmental impact of steel production and improve energy efficiency.
Electric arc furnaces can be used tomaximize production and, at the sametime, meet environmental regulations.
As the leading supplier of tailor-madesteelmaking technologies, solutions,and services, Primetals Technologies
also specializes in electric steelmaking
and offers a complete range of powerful and cost-saving solutions.

Primetals Technologies has two primary electric arc furnaces to transition toelectric steelmaking: the EAF Ultimate
and EAF Quantum. These electric arc
furnaces are oriented toward a sustainable steel industry.
The EAF Ultimate delivers maximum
furnace flexibility and performance,
providing a solution equal to the basic
oxygen furnace (BOF) in productivity
and size, which makes the production
greener and more profitable. On theother hand, the EAF Quantum offers asignificant advantage for production
and the environment, especially with
its shaft-preheating system.

• Service and consulting to offer
reliable support for better predictability

The steel market is
rapidly changing andbecoming increasingly
difficult to anticipate.
Optimized, flexible, andenvironmentally friendly
solutions from a reliable plant supplier like
Primetals Technologies
are vital for succeeding
in today‘s challenging
market conditions.

Driven by innovation and due to permanent research and development,
Primetals Technologies is positioned
to present a new generation of electricarc furnaces for electric steelmaking.

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WHAT IT TAKES TO GUARANTEEA SMOOTH TRANSITION TO
ELECTRIC STEELMAKING

GENERAL FRAMEWORKPRODUCT PORTFOLIOTHE OPTIMAL SOLUTION DEPENDS ON THE REQUIREMENTS

What to consider when
integrating an EAF toachieve ideal operations

How to enhance the electric
steelmaking process for
optimal performance

Conditions

EAF
ULTIMATE

Bucket charging
Raw material

Automation andmechatronics functions

Closed-roof operation
Scrap preheating

Power grid

Water supply

Power distribution
and power quality

Environmental
technologies

Maximized raw material flexibility
DRI/HBI charging
Hot metal charging
Flat bath operation
Productivity on large furnace scales

Additional EAF
features

Support and services

Slag-free tapping

most suitableless suitable

EAF
QUANTUM

EAF ULTIMATEEXTREMELY HIGH-POWER INPUTAND HIGH RAW MATERIALFLEXIBILITY FOR HIGH PRODUCTIVITY

EAF Ultimate at Colakoglu, Turkey

THE ULTIMATE SOLUTION IN ELECTRIC STEELMAKING
The EAF Ultimate combines over 40 years of experienceand innovative strength from Primetals Technologies inelectric arc furnaces. State-of-the-art electric steelmaking
technology and design features deliver maximum furnace
performance in quantity and quality.
The cycle times of this electric arc furnace can be extremely short and the corresponding productivity is comparable
to that of larger-sized basic oxygen furnaces.
FROM 40 TO 320 TONSThe EAF Ultimate concept features a larger diameter,
which permits single-bucket charging, thereby reducing
the power-off time by about two minutes. It also ensures
an improved radius-to-power-input ratio for an optimized
refractory index.
The transformer delivers 1.3 to 1.5 MVA/t liquid steel, of
which up to 1.2 MW of active energy per ton of liquid canbe used. Refining Combined Burners (RCB) technology
allows the complete exploitation of the chemical energy,
regardless of whether an oxygen or carbon lance is used.

DESIGN PARAMETERS
Tap weight40-320 t

Type of scrap charge

one bucket

Transformer

35-315 MVA

PROCESS AND OPERATIONAL FEATURESDESIGN AND EQUIPMENT FEATURES• Superhigh power input (up to 1.5 MVA/t)• Robust and reliable equipment• Arc voltage up to 1,650 V• Gantry with single-point roof-lifting device• Combined oxygen and carbon injection by Refining­Combined Burners (RCB)• Prismatic roller guide system for electrode masts• Continuity of the process due to single-bucket
scrap charging

PERFORMANCE VALUESPower-on time

28-33 minPower-off time

7-9 min

Tap-to-tap time

35-42 minHeats per day

up to 41

• Automatic prepositioning of scrap bucket• Continuous-feeding of systems for hot-briquetted
iron and direct reduced iron (hot or cold)• Hot-metal charging capability• Contact-free steel temperature measurements• Automatic tap control with video camera• Automatic slag detection system during tapping

CONSUMPTION VALUES• State-of-the-art electrode control system• Copper or combi-panels with high-speed
cooling water flow
• High furnace shell and roof for improved soft return• All types of bottom tapping systems(EO-EBT, EBT, RBT, OBT)
• Crane with two auxiliary hooks for quick
electrode exchange• Split-shell design for fast exchange of shell sections

Electricity

350 kWh/t

Electrodes

1.2 kg/t

Oxygen• High-capacity current-conducting electrodearms in copper-clad box design

up to 45 m3/t

• Automatic taphole filling device
MAIN BENEFITS• Taphole- and door-cleaning robots• High degree of flexibility with charge­materials• High reliability and availability• Proven and profitable technology forany steel route (flat and long)• Highest productivity resulting in reductionof fixed costs• Proven low consumption values for energy,
electrodes, refractories, etc.
• Minimum maintenance with the use of heavy
mill-type components

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EAF QUANTUM
AN OPTIMIZED SCRAP PREHEATING
AND MELTING CONCEPT FOR LESSENERGY CONSUMPTION

EAF Quantum at Tyasa, Mexico

THE EAF QUANTUM IS SHAPING THE
FUTURE OF ELECTRIC STEELMAKING
The unique feature of the EAF Quantum is its preheating
technology. The steel scrap is not fed directly into the furnace, as it is usually the case. The scrap is held in a preheating shaft through which the hot exhaust from the furnace
operation passes. Steel scrap is preheated to up to 800° C
in the preheating shaft, effectively recycling the heat fromthe steelmaking process. This considerably reduces theenergy input required for melting.
ELECTRIC STEELMAKING REIMAGINEDThe first EAF Quantum startup at Tyasa in 2014 marked atechnological leap in the status quo of electric steelmaking
and arc furnace design. Over the following decade, the EAF
Quantum has continued to advance in shaft-based electric
steelmaking. It has become critical to the steel industry’s
sustainable and eco-friendly future.
With an increased focus on flexible charge mixes for optimal steel quality, blending new input materials with scrap
metal allows producers to tackle demanding limitations
regarding power and performance. The revolutionary EAF
Quantum is a game-changer in electric steelmaking.

DESIGN PARAMETERS
Tap weight60-300 t

Type of scrap chargeclosed-roof

Transformer

50-190 MVA

PROCESS AND OPERATIONAL FEATURESDESIGN AND EQUIPMENT FEATURES• No bucket charging• Elevator system with chute into sub-surface
dumping station• Energy consumption down to 280 kWh/t• Tap-to-tap time of 32 minutes• Electrode consumption 0.7 kg/t (steel only)• Metallic yield advantage of 2% or more compared
to conventional EAFPERFORMANCE VALUESPower-on time

28 minPower-off time

4-8 min

Tap-to-tap time

32 minHeats per day

up to 45

CONSUMPTION VALUESElectricity

280 kWh/t

Electrodes

0.7 kg/t

Oxygen<30 m3/t• Charging, tapping, and taphole refillingunder power-on conditions• Direct energy recovery due to 100% scrap preheating• Reduced dust emissions thanks to shaft design• Optimized shaft design for 100% scrap preheating
up to 800°C• Patented long-life finger system for optimal
scrap preheating• Robust and reliable equipment• State-of-the-art electrode control system• Automatic and high-efficiency oxygen top-lance system• FAST – Furnace Advanced Slag-free Tapping system• Up to 30% reduction in electrode consumption• Possibility to move shell in off position with cooling watersupply to the upper shell• Highest output even with weak power grids thanks topure flat-bath operation and lowest possible flicker• Self-sustaining hydraulic for shell tilting• Full automation concept is feasible• Locking pillars for operational condition• Slag-free operation• Combined vessel and ladle car for tapping andfast shell exchange• No crane movement in furnace area reduces
the danger of moving loads• Automatic taphole filling device• Quick vessel exchange• Smaller transformer installation

MAIN BENEFITS• Lowest OPEX
• Highest yield and consequently higher profit• Minimum power-off time
• Reduced energy consumption• Lowest noise emissions• Lowest network disturbances• Closed-roof operation

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ECO SOLUTIONSFUTURE-ORIENTED SOLUTIONSFOR ENVIRONMENTALLYFRIENDLY ELECTRIC STEELMAKINGSAVING RESOURCES
AND CREATING VALUEECO Solutions from Primetals Technologies stand for a wide range of services and advanced technologies thatminimize the environmental impactof electric steelmaking and improveenergy efficiency. Primetals Technologies offers expert consulting services,advanced processes, and holistic
solutions along the entire production
chain that ensure strict adherence toemissions regulations and support
producers in achieving substantial costsavings. The objective is always twofold: save resources and create value.
SAVING RESOURCES• Optimized use of raw materials• Reduced energy consumption• Reduced particulate and gaseousemissions• Minimized noise emission
CREATING VALUE• Improved plant performance• Lower conversion costs

ECO SOLUTIONS FROMONE PARTNER
Primetals Technologies offers aspectrum of off-gas cleaning andenergy recovery technologies
from a single source, always inclose collaboration with production specialists. This is ourapproach to create perfectly
coordinated and economically
viable solutions.

REDUCTION OF
ENVIRONMENTAL
IMPACT TO PAVE
THE WAY TO A
GREEN FUTURE

A reliable partner with innovative, tailor-made solutions isimportant for a successful project, and Primetals Technologies
offers additionally:• Full compliance with agreed
upon limit values• Tailored solutions using
comprehensive expertise• Consideration of future emission requirements in the plantlayout and design• More than 40 years ofexperience and profoundknowledge in environmental
technologies• Reduced environmental taxes anddisposal costs• Increased energy recovery• Substantially improved working­conditions and safety10

11Dedusting system at Carionx, Belgium

Energy recovery system at Arvedi, Italy

Noise protection doghouse at Carinox, Belgium

Water treatment system at ArcelorMittal, Texas

DEDUSTING SYSTEMENERGY RECOVERYNOISE PROTECTION

WATER MANAGEMENT

Primetals Technologies offers comprehensive in-house solutions for primary and secondary off-gas treatment in compliance with stringent environmental emissions regulations.

Most EAF off-gas systems are not thermally optimized. Up
to 30% of the energy input in the electric arc furnace is currently unused. Primetals Technologies provides operatorswith highly efficient energy recovery systems that reduceenergy-related costs to a minimum.

Primetals Technologies developed noise mitigation measures for the entire project scope to protect the EAF plant’ssurroundings and to comply with strict noise protection
limits.

Primetals Technologies offers customized and efficientwater treatment and utility systems–backed by uniqueknowledge about the integration of fluid systems in theoverall process technology.

WASTE HEAT RECOVERYNOISE ABATEMENT MEASURES

WATER HANDLING & UTILITY SYSTEMS• EAF doghouse• Water treatment• Concrete building, enclosures of equipment• Slurry and residuals treatment• Insulation of gas ducts• Compressed air systems• Enclosures of equipment (e.g., ID-fans)• Steam and hot water systems• Equipment design with low noise emissions(e.g., low-speed drives)• Piping systems

DEDUSTING SYSTEM & OFF-GAS CLEANING
This proven system is characterized by effective coolingand cleaning of the EAF off-gas and can be customized
thanks to a modular design concept:• Effective gas cooling in two stages (water-cooled
ducts, forced draft cooler, quenching tower, etc.)• Primary dedusting (active carbon injection,
Pulse Jet filter, ID-fan, and stack)The heat from EAF off-gas is transferred into hot wateror steam via water-cooled ducts and/or a bundle “type”
heat exchanger. The recovered energy can be used for thegeneration of• hot water (heating or cooling)• Dust handling (storage, transport)• steam for internal or external steam consumers (processing or secondary metallurgical devices, power plants,etc.), or• Pulse jet-type bag filters• for electrical power.

• Secondary dedusting (canopy hood)12• Gas and fluid supply systems• Application of silencers

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AI-ASSISTEDCENTRAL OPERATIONCOCKPIT (COC)
ACCELERATESTOWARDAUTONOMOUS
EAF OPERATIONREDUCED ENVIRONMENTAL IMPACT
DIGITALIZATION, ELECTRIFICATION,PROCESS AUTOMATION, SCRAPOPTIMIZATION, & ENERGY MANAGEMENT
Required functionalities

Steel producers need the right solutions to optimize their processes,
energy consumption, raw materials, and need to update andupgrade existing technologies. Primetals Technologies offers a range
of innovative solutions to ensure that steel producers operate their
EAF plant as green as possible.

to match your needs

Optimize input
material mix
RAW MATERIAL OPTIMIZATIONMAXIMIZE EFFICIENCY

Primetals Technologies offers a range of scrap yard
automation solutions toPrimetals Technologies offers powerful, safe, and flexible
process optimization systems as well as dynamic process control systems and metallurgical models.

• reduce unplanned stoppage and delays,• reduce quality downgrades due to less scrap­mismatch, andThe results:• increased yield using better input materials.

• precise target achievement• reduced production costs• standardized production process• operator guidance, andMaximize energy
efficiency• reduction of overall CO2 footprint

INTELLIGENT MONITORING OF
PROCESS & EQUIPMENT
Primetals Technologies offers an energy and CO2
monitoring solution to constantly keep track of theenergy used in your production unit resulting in• standardized and automated CO2 monitoring­processes,

Stable production
process• improved transparency by visualizing the CO2­footprint of the EAF production processes, and16

Quality management Through-Process Quality Control (TPQC) is an integrated digital knowledge-based
quality control system creating quality excellence.
With TPQC operators and quality key players can• understand the past via data exploration,• control, evaluate, and enforce quality inproduction via quality assurance, and• learn from the data via analytics insights.

Maximize quality
and yield• a decision basis for PDCA cycle (Plan-Do-CheckAct) based on operational facts.

ENERGY MANAGEMENT CONSIDERING­AVAILABILITY OF GREEN ELECTRICITY

EFFICIENT ELECTRIC CONVERSION
AND POWER UTILIZATION

Primetals Technologies offers an energy management solution offering

Primetals Technologies offers optimal and reliable
power supply solutions for each plant to reach steel
producers’ goals by implementing• optimization algorithms for the prediction of­energy demand,

Minimizeenergy demand

QUALITY MANAGEMENT• cost-optimized purchase of electricity on the
spot market, and• reserved capacity with already contracted gridbalancing services.

• highest power quality solutions with filters,­STATCOMs, state-of-the-art Active Power Feeder• complete plant power supply and distribution substations from one hand (design, delivery, installation,and commissioning)

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OPTIMAL EAF OPERATIONSCRAP YARD, INTRALOGISTICS,
POWER, AUTOMATION, ROBOTIC
SYSTEMS, AND PROCESS CONTROL& OPTIMIZATIONACTIVE POWER
FEEDER
The Active Power Feeder
is a medium-voltage power
supply system. It is based on
modular multilevel converters
to directly feed electric arc
furnaces. Significant advantages for the grid connection
and furnace operation can beachieved through• increased productivity,• dynamic process control,• reduced electrode consumption,• flexible installation at themedium voltage bus andoutside of the furnacebuilding,

Investing in a new production route with an EAF is a promising strategy to master the transition to green steelmaking. But how can one
gain the know-how to optimally operate a new production route?
How can one produce the same steel quality as before? Primetals
Technologies offers several automation, digitalization, and power solutions to ensure autonomous plant operation to meet ­target qualities with optimal resource utilization, high throughput, and profit.

INTELLIGENT
INTRALOGISTICS
SOLUTIONSPROCESSCONTROLTECHNOLOGYPACKAGESPROCESSOPTIMIZATIONCROSS-PROCESSOPTIMIZATION

Primetals Technologies offers
solutions based on the digitalization of all key intralogistics
processes, which allows forAchieve the highest availability and compatibility with the
EAF Controller (Level 1) andbenefit fromAchieve the highest safety­standards and productivity
with fully automated processfunctions and profit fromAchieve stable product quality and optimized costs with
the EAF Optimizer (Level 2)
and benefit from

Primetals Technologies offersa range of modular digitalization packages to optimize theentire meltshop, through• predictable and transparent
intralogistics processes,• improved process reliability,• environmental improvements and energy savings,• dynamic process control for
optimized product quality,• quality improvement andsafety,• holistic tuning of input materials to reduce costs,• cost reduction, capacity increase, productivity
increase, and• powerful metallurgicalmodels for precise target
achievement.

• combining informationfrom individual production units to increase theperformance of the whole
steel plant,• a more efficient flow of materials and goods, and• improved raw material
quality and output.

• enhanced operational
efficiency,• digital technical documentation with augmented live
production data.

• automatic robot-based
applications.

• operator guidance andsupport for sustainableproduction know-how• data analytics as lever for
securing profitability.

• grid stabilization, and• reduced stress and wear onelectrical and mechanicalequipment.

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PROJECT MANAGEMENTEFFECTIVE PROJECT MANAGEMENT IS
THE CORNERSTONE OF SUCCESSFUL
FUTURE PLANT OPERATION

20EXECUTIONQUALITYRISK

EFFICIENT EXECUTIONQUALITY ASSURANCERISK MITIGATION

Project management at
Primetals Technologies ensures streamlined processes,
optimized resource allocation, and timely completion.
Together with our customers, fast start-ups and steep
production ramp-ups are ourdefined goals. Cost control
contributes to our client’s
profitability by keeping project expenses in check. We
are focused on timely projectcompletion: meeting deadlines enhances our customer’ssatisfaction and builds trust.

The core purpose of ourquality assurance is to prevent mistakes and defects
in developing and producing provided solutions,manufactured equipment anddelivered services. Project
management at Primetals
Technologies maintains thehighest quality standards
and ensures compliancewith industry norms andsafety regulations. Within the
project management career
path, Primetals Technologies
continuously improves the
skills of our experts based oninternational management
standards and developments.

Proactive risk managementmeans identifying risks before
they happen and figuring
out ways to avoid or migrate those risks. Our project
managers promptly addressrisks, providing clients theconfidence to implement the
project smoothly by optimizing time and cost efforts.
Open communication andregular updates contributeto the project’s successful
completion.

With more than 50 years of experience and expertise in electric
steelmaking, we fulfilled over
600 projects. Deep knowledgeof implementation procedures
allows our project managers from
our Centers of Competence located in Austria and Germany toapply their skills to manage thedesign, manufacturing, supply,and start-up of tailor-made electric arc furnaces and secondary
metallurgy plants, including electric and automation solutions forour customers. Effective project
management is the cornerstoneof successful metallurgical plantbuilding.

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LIFECYCLE SERVICE AND TRAININGSUPPORT AND TRAINING FROM A
SINGLE SOURCE – FAST, EXPERIENCED,RELIABLE

Strong competitive pressure forces plant operators to keep
production and maintenance costs at the lowest possible level.
To improve both efficiency and performance, plant operators
increasingly rely on operational support, maintenance, and repair
services. Outsourcing crucial service activities is a very effective
way for plant operators to improve their cost structures.

SERVICE, MAINTENANCE & TRAININGFOR IMPROVED EAF OPERATION

EAF REFURBISHMENT –CURRENT CONDUCTING ELECTRODE ARMS

As a lifecycle partner, our metallurgical services offer ourcustomers comprehensive operational and maintenancesupport for the entire lifecycle of a steel mill plant, including specialized services for electric arc furnaces to optimize
their efficiency and maintenance. Our experts are experienced in improving performance, extending the service life,and ensuring the safety of these furnaces.
We provide real-time monitoring, preventive maintenance,
and innovative solutions to challenges associated with hightemperatures, electrical issues, and material handling inelectric arc furnace operations.
The result of this win-win relationship between steel milloperators and Primetals Technologies is a continuous improvement in plant performance, product quality, and total
cost of ownership. Additionally, we offer training to makeelectric steelmaking processes easier.

Spare parts & products — repair and reconditioning service, spare and wear parts, original
equipment manufacturer components, spares
management, long-term contracts
Training & services — consulting and studies, technical assistance, web-based training,classroom training, on-site-training, long-term
contracts
Modifications & revamping — system upgrades,
modernization, replacements, latest technology
Maintenance — on-/offline maintenance, predictive maintenance, consulting, support for warehousing and warehouse management, repair andrefurbishment of equipment

FROM CONSTRUCTION TO LIFETIME EXTENSION

The demand for continuous production of high-quality
products is higher than ever. When operating an EAF, theelectrode arms are essential for continuous production.
By overhauling older sets of electrode arms, steel producers can minimize capital expenditures and prevent stoppages. Primetals Technologies brings unique expertise in the
fabrication and maintenance of these fundamental components. Suppose producers require the replacement ofa full set or a single arm or require specialist maintenancesupport. In that case, Primetals Technologies can optimize
the lifetime and running costs of the equipment.
A unique approach to electrode arm maintenance is vitalfor optimal electric arc furnace operation. An evaluationof current conditions, a repair feasibility analysis, and thecreation of a comprehensive roadmap for redevelopment
follow a thorough initial inspection. The refurbishment is
optimized according to individual plant production conditions to maximize the EAF performance.

Primetals Technologies is an expert in providing singlesource solutions; including original equipment manufacturer components, third-party spare parts, modernization andmechatronic solutions, consulting and training, and maintenance and repair services.
• Customized solutions allow decreasing operating andmaintenance costs to offset growing cost pressure.

EAF AUTOMATION SUPPORT –CUSTOMIZED ELECTRICS AND AUTOMATION• Employees with outstanding problem-solving skills­respond to challenging market requirements.

Dedicated automation can assist company staff in detecting, analyzing, and solving all electric and automation-related problems. Local experts are highly qualified to provide
technical support on short notice. Beyond that, the internet allows our service specialists to provide expert support from anywhere worldwide – based on remote accessthrough reliable and secure encrypted connection.

Original equipment manufacturer components (OEMs)
Spare and wear parts
Consulting and training
Small modernization projects (maintenance)• Trouble-free and reliable operation, increased availability,
and consistently high performance

Online and offline maintenance• Fast automation and process support

Repair of OEM components
Erection

Commissioning

Operational phase

Annual service contracts provide affordable, fast, and nonbureaucratic support. Steel producers can benefit fromour experts’ comprehensive knowledge of EAF automation
systems to guarantee the following:

Lifetime extension• Access to expert knowledge of complex automation
systems

TIME

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REFERENCES AROUND THE WORLDA COMPETENT AND EXPERIENCED
PARTNER FOR ELECTRIC STEELMAKING

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Today’s steel producers face immense challenges when working
with an EAF. These challenges may include anticipating tomorrow’s
more stringent environmental targets for green steel, achieving
optimal energy efficiency, and dealing with the constraints of a weakelectrical infrastructure. With many years of project experience inthe steel industry, Primetals Technologies has developed a special
expertise for the integration of electric arc furnaces in existing
steelmaking plants and provides innovative solutions to thechallenges mentioned above.

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68

7
2
Numberof EAFreferencesby region

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REFERENCE HIGHLIGHTSSUCCESSFUL CUSTOMERS IN THE
ELECTRIC STEELMAKING BUSINESSSALZGITTER –GERMANY

VOESTALPINE STAHL –AUSTRIA

ACCIAIERIA ARVEDI –ITALYTOSYALI DEMIR CELIK –TURKEYTYASA –MEXICOHENAN YAXIN STEEL GROUP –CHINA

EAF Ultimate –220 tons tap weight

EAF Ultimate –180 tons tap weight

EAF Ultimate –150 tons tap weight

EAF Quantum –150 tons tap weight

EAF Quantum –100 tons tap weight

EAF Quantum –120 tons tap weight

Salzgitter‘s green steel transformation program SALCOS® aims
to convert its existing integrated
steel plant to green steel production by 2033.

The EAF Ultimate is key tovoestalpine’s green transition
program, “greentec steel.” As afirst step, one electric arc furnace
will be built at voestalpine’s sitein Linz.

Acciaieria Arvedi is an Italian
steel producer who wanted to
improve its steel production andordered an electric arc furnacefrom Primetals Technologies.

For the first phase of their meltshop project, Tosyali ordered an
EAF Quantum.

Talleres y Aceros, after successfully operating an electric
steelmaking facility for 20 years,
desired a production increase
and modernization.

The Chinese steel producer
Henan Yaxin Steel Group Co., Ltd.
operates its eco-friendly mini millconsisting of two EAF Quantum
and an Arvedi Endless Strip Production (ESP) line at its Fujian
Dingsheng plant.

The EAF Ultimate should replace
their existing converter as partof their transformation. Salzgitter ordered the EAF Ultimate
following recent successful EAF
projects and competence in project management demonstrated
by specialists from Primetals
Technologies.
Additionally, to the EAF, Salzgitter ordered automation packages, eco solutions, and robotics
systems.

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Successful collaborations, expertise in producing advanced
steel grades, and leading automation solutions were the mostimportant factors influencing
the decision to choose Primetals
Technologies.
The scope of delivery includes
eco solutions, material handling,a robotic system, and automation
systems.

The new EAF Ultimate increases
the production capacity of
Acciaieria Arvedi and reduces
conversion costs.
The order also included a dedusting system combined with a heatrecovery system, other features
such as a water leakage control
system, and a new type of automatic tap hole filling—automation
rounds out the supply scope.

This electric arc furnace developed by Primetals Technologies
combines proven elements ofshaft furnace technology withan innovative scrap charging
process, an efficient preheating
system, a new tilting concept for
the lower shell, and an optimized
tapping system. This all adds
up to very short melting cycles.
Moreover, the electrical energy
requirement of the electric arc
furnace is extremely low, which
has reduced both the operating
costs and the CO2 emissions.

The result was a new compact
steelmaking plant with a capacity of 1.2 million tons per annum.
The heart of the plant is the EAF
Quantum. This new furnace design reduces the conversion costfor electric steelmaking production by 20%.
The plant also includes secondary steelmaking facilities, a flexible 6-stand continuous caster,and a state-of-the-art water
treatment and dedusting system.

This setup allows for 85% CO2
savings compared to the integrated production route. The
extremely low electrical energy
consumption for flat products
contributes to a reduction ofemissions as well as a reductionof operating costs. Their new
EAF Quantum expedites a transition of the existing production toa more environmentally compatible electric steelmaking process.

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Primetals Technologies Austria GmbHA Group Company of Mitsubishi Heavy Industries

Turmstrasse 44
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Brochure No.: T02-1-N783-L4-I-V1-EN
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