CVS MAKINA - Company Presentation
Ø CVS provides plants & equipment for minimills,
also in “turn-key” solution.
Ø CVS covers the complete design and
manufacturing activities for green-field projects
as well as revamping/upgrading of existing
plants and equipment.
Ø CVS manufactures spare parts & components
for meltshops & rolling mills.
Ø CVS provides technical assistance and
consulting service to steel production.

CVS MAKINA - Company Presentation
Quick Info
Ø CVS headquarter is placed in the industrial
region of Gebze, just east of Istanbul, close
to many major ports
Ø Our modern facilities consists of more than
40,000 sqm of closed area and a land of
additional approx. 40,000 sqm
Ø CVS workforce is formed by over than 500
specialized workers and engineers with a
modern machinery park to undertake even
the most challenging projects.
Ø Over than 200 engineers and administrative
employees are involved in the design and
management of the projects.

MELTSHOP DESIGN
From Water Cooled Panels to complete Electric Arc Furnaces, from Ladles to complete
Ladle Furnaces, from Tundishes to complete Continuous Casting Machines, from Ducts
to complete Fume Treatment Systems and from Engineering Services to Turn-Key
Plants, CVS offers economically viable solutions at European standards.
CVS Makina. Company Presentation

CVS - E.A.F.
Design Concept
• CVS has more than 50 Electric Arc
Furnaces supplied worldwide
• Furnace size from 12 to 180 tapped
steel
• Some EAF futures:
– AC type
– EBT tapping system
– conductive or traditional
electrode arms
– original roof lifting design
– full platform & split shell design

CVS - EAF
Design Main Objective
Low production costs
Higher process flexibility.
Increasing productivity
while improving energy
efficiency.
İmproving the quality of
the finished product.
Meet environmental
requirements at a
minimum cost.
Better coordination of
process/environmental
requirements

CVS - EAF
Typical Furnaces

CVS - E.A.F.
Mechanical Design Features – 1/2
Ø The EAF is of “Full Platform” type i.e. with electrode lifting column support
and the roof lifting and turning machinery mounted on the tilting platform.
Ø The main design features are as follows:
ü The cradles are arranged so as to guarantee a tilting opposite to the
tapping side in case of a hydraulic failure.
ü Furnace shell of split type.
ü Rigid design in order to avoid distortion due to mechanical or thermal
stresses.
ü Curved shape in order to guarantee optimal refractory performance.
ü Shell upper part of cage type and water-cooled panels with cover plates in
order to minimise air inlet.
ü Eccentric Bottom Tapping, EBT, with hydraulically operated swivelling gate
mechanism.
ü Roof hung in two points allowing to optimal roof closing during melting.

CVS - E.A.F.
Mechanical Design Features – 2/2
Ø Mechanical design features - Continued
ü Electrode lifting columns and electrode arms of stiff design allowing for
fast response electrode position control.
ü Hydraulic system designed for fast furnace movements and high speed-
fast response electrode position control.
ü The electrode hydraulic regulation uses counter pressure in order to
balance out the weight of the column, arm and power cables.

CVS - E.A.F.
Design Benefits
ü Gantry design for self-supporting furnace roof
ü Prismatic roller-guide system for electrode masts
ü High-current-conducting electrode arms in copper-clad box design
ü State-of-the-art electrode control system
ü Split-shell design
ü Copper or combi-panels with high-speed cooling water flow
ü Oxygen and carbon injection
ü All bottom tapping systems EBT, EO-EBT, RBT, OBT)
ü Special hot-metal charging facilities
ü Continuous DRI/HBI feeding systems
Main benefits
ü Increased productivity due to shortest melting and idle times
ü High power input (up to 1 MVA/t)
ü High-impedance furnace
ü Arc voltage up to 1,500 V
ü Proven low-consumption values energy, electrodes, refractories, etc.)
ü Low tapping temperatures and minimum slag carry-over
ü Minimum maintenance with the use of heavy mill-type components
ü Highest flexibility with respect to charge materials

CVS - EAF
Chemical Energy System Concept
Ø CVS has special oxy-burner system for higher productivity
Ø The injection system consists of a set of jet burners installed on the EAF shell.
The jet burners are supersonic oxygen injectors combined with a hydrocarbon
burner, all in the same housing.
Ø Three jet burners are installed in the upper shell’s side wall, while the forth one
is located in the EBT area. The functions of the injection system are :
üdecarburization of the steel bath
üthermal energy input
üformation of foaming slag
üreduced need of charge carbon with the scrap
üthe thermal energy is efficiently transferred to the bath with less fuel, lower off-
gas temperature and much better control of CO emissions.

CVS - EAF
Burner Design Concept
ØThe location and the direction of the burners are determined to reduce the cold
spots effect generated by the three-phase arc of the furnace, thus obtaining an
even and faster melting.

CVS - EAF
Burner Positioning Inside Furnace
Ø The lance manipulator for the Electric Arc Furnace is primarily designed for
safe oxygen injection. As well, solid materials like Carbon can be given from
burner case.
ØThe Carbon injection in the bath have demonstrated of outmost importance to
work with proper foaming of the slag and to obtain recarburisation of liquid steel
bath if required to control bath composition.

CVS - EAF
Burner Advantageous
• Higher burner efficiency (cleaner walls, reduction of electric energy
consumption)
• Higher supersonic oxygen efficiency (reduction of electrode consumption
and increase of refractory delta life)
• Higher burner power (up to 8 MW burner and 4000 Nm3/h of supersonic
oxygen)
• Carbon injection in the slag (CH4 + N2 cooled) or above the slag (air cooled)

CVS - EAF
Burner Positioning Inside Furnace
• Very low installation in water cooled copper box
• Refractory saving by cooling block
• Long life (8-18 months)
• Fast substitution time
• Flame shape control
• De-Luxe gas valve stand
• Improve Metallic Yield
• Very flexible automation

CVS - EAF
Burner Flame Shape Management
Burner Flame Supersonic Flame
High Flame EBT Burner Flame

CVS - EAF
Slag Foaming
Foaming slag is used to increase the thermal
efficiency of the furnace during the refining
period, when the side walls are fully exposed
to the arc radiation.
A foaming slag will rise and cover the
electric arcs, thus permitting the use of a
high tap setting without increasing the
thermal load on the furnace walls.
In addition, an electrical arc covered by a foaming slag will have a higher efficiency in
transferring the energy into the steel phase.

CVS -
Slag Foaming
Slag foaming is obtained by
injecting oxygen into the liquid
steel, where mainly iron is
oxidized according to the
reaction:
O2 + 2 Fe = 2 (FeO)
Carbon powder is then injected
simultaneously into the slag
phase where iron oxide is
reduced.
(FeO) + C = Fe + CO (g)
The resulting CO gas is a critical
component in order to obtain a
foaming slag.

CVS - EAF
Panel Design Example
CVS have big experience for manufacturing of Furnace panels made of copper and
steel.
Special testing methods is applied before shipment.

CVS - EAF
Typical EAF Layout

CVS - EAF
Typical 3-D View

CVS - EAF
Typical 3-D View

CVS - EAF
Typical Section View

CVS - EAF
Tapping Operation
1- Working Position 2- Tapping Start Position
3- Tapping Position 4- Deslagging Position

CVS - EAF
Roof Lifting Operation
CVS special design of Roof Lifting
system yields for easy and safe
operation.

CVS - E.A.F.
Auxiliaries

CVS - SECONDARY METALLURGY
LF. Concept
The operation executed at the ladle furnace is
an essential part of the secondary metallurgy
treatment, such as refining, adjustment of
liquid steel temperature and chemical
composition with the target to increase quality
of steel.

CVS - SECONDARY METALLURGY
LF. Advantages
ØThe advantages of a ladle furnace can be defined as follows :
•Saving of ferroalloy
•Saving of energy
•Increase productivity
•Decreasing refining time of EAF
•Decreasing tapping temperature at EAF
•Precise temperature control
•Improved of inclusions, cleanliness of the steel
•Possibilities of wrong analysis limited

CVS - SECONDARY METALLURGY
LF Design Advantageous
ØThe Ladle Furnace is conceived for reheating the steel in the ladle placed on a
ladle car and will be designed and built according to the most modern techniques in
the field and will be in particular provided with:
ü Water-cooled secondary circuit and water cooled flexible cables
ØWater-cooled ladle roof equipped
with indirect fume collecting hood
to reduce steel oxidation
ü Roof lifting mechanism via
hydraulic cylinder
ü Electrode arms with reduced
electrode pitch diameter
ü Water-cooled secondary circuit
and water cooled flexible cables
ü Electro-hydraulic electrode
regulation

CVS - SECONDARY METALLURGY
VD / VOD Plant
The purpose of secondary metallurgical steel treatment under vacuum conditions is
to produce high-purity steel having following properties:
low content of harmful elements such as sulphur, phosphorus, trace elements and/or
carbon,
lowering of oxygen, nitrogen and hydrogen gases dissolved in the steel,
as well as major improvements of steel purity, including shape control of non-metallic
inclusions.

CVS - SECONDARY METALLURGY
VD / VOD Plant
PURPOSE
• H removal
DESIGN FEATURES
• N removal
• S removal • Dimensioning of vacuum tank
• C removal (VOD) • Vacuum hopper
• Dust separator
RESULTS
• H contents < 1 ppm
• N contents -30/50 %
• S contents -80/95 % VACUUM PUMP FUNCTION
• C contents < 20 ppm • Function of a steam ejector
• Compression of off-gas with ejectors in
series
PROCESS
• Intermediate condensation of motive
•Temperature loss during steam
vacuum treatment • Waterring pumps
• Global function of ejectors and
condensers
LAYOUT
• Longitudinal section • Process flow diagram 5-340 WR
• Vacuum pump • Suction capacity of pump 5-340 WR

CVS - SECONDARY METALLURGY
VD / VOD Plant
Hydrogen Removal
The final hydrogen content of a heat depends on the pressure of vacuum vessel, the amount
of the purging gas and the CO-gas development.
Even fully killed heats can be treated due to intensive degassing supported by lift gas. For
lowest hydrogen levels the pressure must be lower than 1 mbar with according treatment
times of 15 - 20 min depending on the starting level.
Nitrogen Removal
Even in VD-Plants nitrogen removal is preferably carried out. Having low sulphur and
oxygen levels this process as well requires low vacuum levels with less than 1mbar for
approx. 15 - 20 min.
Argon is purged by the porous plugs from the ladle bottom with approx. 10 Nl/(min, t steel).

CVS - SECONDARY METALLURGY
VD / VOD Plant
Sulphur Removal
The final sulphur content of a heat depends on the pressure of vacuum vessel, the
amount of the purging gas and the amount of synthetic slag added prior to vacuum
treatment start. The EAF furnace slag has to be reduced during tapping to values below or
equal to 5 kg/t Steel.
For low sulphur levels the pressure must be lower than 1 mbar with according treatment
times of 15 - 20 min depending on the starting sulphur level. Argon purging by the porous
plug from the ladle bottom with approx. 10 Nl/(min, t steel) has to be ensured.
Light Treatment (Deoxidation)
The liquid steel will be tapped unkilled or semi-killed from the EAF and partly deoxidised
in the VD-plant.
The deoxidation will occur due to the CO-development by natural decarburisation. The
pressure range depends on the C-O equilibrium and is about 40 - 200 mbar.
After 10 - 12 min treatment the final deoxidation will be carried out with Al or others.
Thus large amounts of deoxidation agents can be saved by light treatment.

CVS - SECONDARY METALLURGY
VD / VOD Steam Ejector Pumps
Vacuum Ejectors/ Water Ring Waste Gas
Vessel Condensers Pumps Line
Condenser
Booster/ejector
Water ring pump
Vacuum Vessel
Vacuum pump system (typical)

CVS - SECONDARY METALLURGY
VD / VOD Plant
PROCESS COST FOR REMOVING C IN EAF AND VOD
- Modelling of the VOD process
- Optimisation EAF-VOD
OPTIMUM RANGE
- Slag reduction EAF
COST
- Desulphurisation
VOD
VOD PROCESS CONTROL
-Calculation functions
- Thermodynamic model
- Example of oxygen blowing 0 0.5 1.0
CARBON CONTENT
THERMODYNAMICSC - removal at low pCO and high temp
( fCr * %Cr )2 * pCO3 * 10( 40536/ T - 25.63)
3C + Cr2O3 Û 3CO + 2Cr %C = 3
aCr2O3 * fC 3

CVS - SECONDARY METALLURGY
VD / VOD Plant
Modelling Of The VOD Process
1720 1000.0
1700
1680 100.0
Reduction
1660 Oxygen
Agents
Temperature, C
Pressure, torr
1640 Slagbuilding, Alloying 10.0
Heating
1620
1600 1.0
1580
Trim
1560 Additions 0.1
1540
1520 0.0
0 20 40 60 80 100 120 140 160 180 200
Time, minutes
T PREPARATION T OXYGEN BLOW BOIL SLAG T FINAL T
a IN LF A OFF RED A TRIM A
p

CVS - SECONDARY METALLURGY
VD / VOD Plant

CVS - SECONDARY METALLURGY
VD / VOD Plant

CVS - SECONDARY METALLURGY
Ladle Inert Gas Use
à Homogenisation of The Bath Temperature
à Homogenisation of the Bath Chemical
Composition
à Better Mixing Between Steel and Slags
à Better yield of additives (ferroalloys)
à More Clean steel
a. Refractory material on the ladle bottom
b. Porous plate
c. Porous refractory insert
d. Locking equipment
e. Gas inlet

CVS - Liquid Steel Auxiliaries
Ladle and Ladle Cars

CVS - Liquid Steel Auxiliaries
Ladle Emergency Stirrer Lance
This gas stirring system is designed to feed inert gas through a refractory lance for
emergency stirring if the porous plug does not work properly.
The refractory lance is held and plunged into the steel bath by a structure adjacent to
the ladle roof.

CVS - Liquid Steel Auxiliaries
Ladle Preheaters / Driers
Ladle pre-heater/drier consists of
a circular, concave lid
a centrally located fuel-air burner.
The burner creates a high-velocity, extended flame, which brings the thermal energy
down to the ladle bottom.
The combustion air is generated by a centrifugal fan located in a protected position in the
burner stand and led via the cover suspension arm to the burner.
The hydraulic power for lid movements is provided by an independent hydraulic power
pack.
The burner is directly ignited by means of a high voltage device after automatic purging
of the combustion chamber.

CVS - Liquid Steel Auxiliaries
Ladle Preheaters / Driers

CVS - CCM
Design Concept

CVS - CCM
General description
Continuous Casting is the process whereby molten steel is solidified into a
"semifinished" billet, bloom, or slab for subsequent rolling in the finishing mills.
Steel from the electric arc furnace is tapped into a ladle and taken to the continuous
casting machine. The ladle is raised onto a turret that rotates the ladle into the
casting position above the tundish. Liquid steel flows out of the ladle (1) into the
tundish (2), and then into a water-cooled copper mold (3). Solidification begins in
the mold, and continues through the First Zone (4) and Strand Guide (5). In this
configuration, the strand is straightened (6), torch-cut (8), then discharged (12) for
intermediate storage or hot charged for finished rolling.

CVS - CCM
Design Concept
CCM is designed to produce square billets in the sections between 100 to 150
mm.
The CCM can be fitted with up to six casting strands in order to satisfy the
production schedule given by the EAF.
The CCM is equipped with the necessary modern equipment to produce high
quality casted products, such as tundish of delta type to reduce inclusions in the
mould, long copper tube to improve primary cooling on the billet surface,
automatic mould level control system, high casting radius to reduce stress
during unbending, secondary spray cooling divided in three zone for a better
cooling effect and control, walking beam cooling bed for the straightening of the
long billets.

CVS - CCM
Design Concept

CVS - CCM
Quick Nozzle Changer
The Quick Nozzle Change QNC system allows long sequence casting using the
same tundish by replace the tundish nozzle on the fly without requiring
substitution of the tundish or casting interruptions.

CVS - CCM
Quick Nozzle Changer Advantageous
• The nozzle changing is safe, quick (less than 1
sec) and allows an immediate strand shut-off
when is needed using a blank nozzle
• The nozzle change guarantee the optimum
casting speeds on the strands
– to match the furnace production with
stop/start of individual strand in function of
tap to tap time
– to change speed in function of different steel
superheat temperature without changing
tundish level
– to change nozzle because of clogging or
premature wearing of the nozzle
• The nozzle change automatically stop the stand
in emergency situation like overflow or breakout
using a blank nozzle actuated by mould level
control

CVS - CCM
Quick Nozzle Changer Profits
– Better billet quality thanks to Quick nozzle change device in the CCM can
keeping a constant casting increase the number of heats in sequence:
speed
– Up to 75% of tundish refractory 99,5
consumption saving up to 99
0,7US$/ton 98,5
98
– Up to 80% of metallic losses
97,5 single heat
reduction due to a reduction of
head/tail crops and tundish skull 97 short sequence
saving up to 0,8US$/ton 96,5 long sequence
– Reduction of tundish 96
maintenance people because of 95,5
Reduction by 5 times the 95
number of tundish used Material yield
– Increase of the metallic yield of
the caster up to 0.5%

CVS - CCM
Typical Sectional View

CVS - CCM
Typical Sectional View

CVS - CCM
Typical View

CVS - CCM
Ladle Turret
Serving to support the teeming
ladle and adjust it to casting
position.
Design for handling up to two full
teeming ladles.
Weighig Load-cells
Emergency Turret Rotation
Different Designs
Ø Ladle Car
Ø Ladle Rotation Arm
Ø Liftible Ladle Turret
Ø Independent Arm Ladle Turret

CVS - CCM
Tundish Car
Different Designs Serving to support the tundish
and adjust it to casting position.
Ø Cantilever Type
Ø Rail Type Quick nozzle changer system
Ø Semi-cantilever Type
Ø Liftable Type Adaptable to stopper rod
mechanism
Weighig Load-cells
Emergency Translation via
electric motor

CVS - CCM
Mould Oscillation
Design Features
- Heavy-duty design
- Sized to support the mould housings assembly
- Designed to permit mould oscillation along the casting radius
- Adjustable stroke, frequency and negative strip time.
- Easy access to the mechanism itself
- Protected from the cooling chamber environment.
- Allowing for fast and precise positioning.
Different Designs
Ø Electro-mechanical
Ø Hydraulic
Ø Air spring
Ø Mechanical Spring

CVS - CCM
Secondary Cooling
-Heat resistant concrete walls
- Modular structure
- Steel doors and walkways allow maintenance
access to the sprayers and to the bow guide.
-Visual inspection openings.
-Steam extraction fan.
-Automatic Control of Spray Water Quantity
- Completelly water spray nozzle or air mist
design
- Guiding rollers

CVS - CCM
Withdrawal and Straightener

CVS - CCM
Dummy Bar
- Rigid design
-Safe operation
-Faster restranding of strand
- Quick automatic disconnecting operation.

CVS - CCM
Lateral Transfer System
Designed to move the billets from the
elevated position above the discharge roller
table to the cooling bed area.
The transfer system is composed by a
bridge beam that spans over the removal
area and translates across it.

CVS - CCM
Cooling Bed
The bed is composed by two frames having a
set of mounted blades: one frame is fixed
while the other is alternately moved in a
vertical and horizontal direction by two sets of
hydraulic cylinders.
During its movement, the movable frame
advances the billets along the fixed frame thus
allowing an uniform cooling of each bar.

CVS -
Scrap preheating Systems
Preheating of scrap by utilizing sensible heat of exhaust gas emitted from an EAF have
been investigated for many years in many plants.As a result of scrap preheating, not
only the electric power and time required for steelmaking but electrode and refractory
consumption has decreased.
Condition of temperature on the preheating system:
- Inlet temperature of preheater: approx. 8000C – 2000C
- Outlet tempearture of preheater: approx. 2500C – 500C
- Temperature of preheated scrap: approx. 4000C – 1000C
- Temperature at combustion chamber inlet widely varies between 12000C to 3000C
according to the time and conditions of the steelmaking stages.
Outlet temperatures of the preheating system stays at low temperatures which
indicates that heat absorption by scrap is fully accomplished. Temperature of scrap
indicates the difference between upper and lower parts of the charging bucket.
Main Profit:
Preheated scrap average temperature is between 150°C - 200°C
The amount of energy saving is 20 – 30 kwh/ton in practice.

CVS -
Scrap preheating Systems
-Easy Solution
-Low Investment Cost
-Better Operation
-Adaptable for Existing Automation
-No dioxin
- Maintenance Friendly

CVS -
Outline for CVS Scrap preheating Systems
•Heat energy contained in a gas evacuated from an EAF accounts for 15 to 20 % of the
total energy used in EAF steel making process and that is 100 – 150 kwh/ton.
•CVS scrap pre-heater is a system which utilizes this heat energy to heat scrap in a bucket
before charged into an EAF and thus contributes towards energy saving.
Gas evacuated from the EAF is led to a combustion chamber through a suction duct
together with air induced through gap between EAF elbow and sliding sleeve duct to burn
CO contained in the gas, a part of this burned gas is introduced in to the bucket placed at
the scrap to heat scrap. After passing the bucket, the gas is returned to the combustion
chamber by a preheating fan. This is called Recycle Flow in the system.
When scrap does not contain oil and other combustibles, the gas after preheating my be
sent to the duct collector. This is called Direct Flow in the system.
For Recycle flow, combustibles contained in the gas after preheating is burned by mixing
with the gas from the EAF. This enables to eliminate an air pollution after dust collector.

CVS -
Outline for CVS Scrap preheating Systems
It is important to minimize gas leakage in a preheating line. For this purpose, special
sealing devices are provided between hood pipe and inlet duct, hood and scrap bucket
top edge, bucket cylinder and clamp shells.
By use of the adequate sealing devices, air introduced into the scrap pre-heater is very
small.
By provision of preheating fan, existing fume treatment plant can employ the scrap pre-
heater without modification.
As the system is fully automatically operated, this system does not require additional
worker.
EAF operation will not be interrupted even if the preheating system run into a trouble.
Recycling method of preheating system can be controlled separately from dust
collector system.
Proper adjustment of the preheating temperature prevents the scrap bucket from being
deformed.

CVS -
Carbon Handling System
üCarbon Handling Cost: Less than 30 USD/ton (depending on unit price of
consumable items)
ü 70 USD/ton saving from operation
ü Investment Pay-Back Maximum 10-months

CVS -
Carbon Handling System
Design Features Design Advantages
ü Up to 5.000 ton/month
ü Starting Carbon ü Low dust
Size: 0-100 mm ü Fast Pay-back
Humidity: Up to %25 ü Minimum Investment
ü End Product: ü Maintenance Free
Humidity: Less than 1 % ü Low operation Cost
3-8 mm Carbon (10-40 %) ü Higher productivity
0-3 mm Carbon (30-80 %) ü Safe Operation
ü Dust: Less than 6 % ü Fully-automatic
ü Energy Consumption: ü Adaptable for
Less than 8 kWh/ton C automatic feeding
ü NG Consumption:
Less than 30 Nm3/ton C

CVS - FTP
Design Concept
FTP DESIGN
From EAF Roof Elbow to Stack, CVS provides complete Fume Treatment Plants with
engineering, design, manufacturing and installation. Design considers also LF, MHS,
canoppy and other dust emitting points by the goal of ZERO DUST EMITION to
environment. CVS offers economically viable solutions at European standards.

CVS - FTP
Design Concept
CVS designs FTP to collect, suck and treat the primary and secondary emissions
generated by the EAF, the primary emission generated by the LF and the emission
emitted by the Material Handling System.
The dedusting system consists of a
set of fume collection points and a
set of ducting lines (water-cooled or
radiant type), which convey the
various emissions to the bag filter
already under implementation.
CVS designs FTP with the following
aim:
•minimum operation and
maintenance costs;
•optimal utilization of spaces inside
/ outside the meltshop;
•automatic operation, “hands-off”
type; and
twenty-four hours operation.

CVS - FTP
Design Concept
Design considers following working
profile:
Melting phase
•EAF in melting phase (roof closed,
primary fumes suction line open);
•Suction from the canopy hood to
provide meltshop ventilation and
primary fumes cooling;
•LF in heating phase;
•MHS in operation.
Charging/Tapping phase
•EAF in charging/tapping phase (roof
open, primary fumes suction line
closed);
•Suction from the canopy hood;
•LF in heating phase;
•MHS in operation.

CVS - FTP
Typical Filter Unit

CVS - FTP
Typical Canoppy Hood

CVS - FTP
Typical Pelletizer

CVS - FTP
Design Focus
ü Reliability
ü Reduced maintenance requirements
ü Reduced operating cost (electrical energy, compressed air)
ü Low residual dust content at stack
ü Low noise emission technology
ü Environment Friendly
AUX
STACK
CANOPY HOOD
W.C. DUCT
FAN FAN
BAG-FILTER
CYCLONS
COOLER
LF EAF SETTLING
CHAMBER

CVS - FTP
Typical Drawing

CVS - Material Handling System

CVS - MHS
Design Concept
The plant is divided into three main parts:
a) Equipment for Ferro-alloys and additives storage from receiving hoppers to the
bins battery
b) Equipment for Ferro-alloys and additives extraction, dosing and weighing,
transport and charging into furnace, ladle in tapping position and L.F.
c) Equipment for Carbon and lime extraction, dosing and weighing, transport and
charging into scrap buckets.

CVS - DRI Continuous Feeding System

CVS - DRI Continuous Feeding System
It is possible to charge HBI up to 30% without continuous feeding, and up to 100%
using top feeding.
Slag control, feeding rate and power input are the key factors in continuous charging
procedures.

CVS - DRI Continuous Feeding System
Continuous feeding of HBI is typically performed to: Physical requirements for
continuous feeding of HBI and
• To eliminate one or more buckets from the charge, DRI:
thereby reducing heat losses and power off time
• Allow high rates of HBI use. • HBI must be present as single
• Boost productivity and reduce heat losses by briquettes or pieces to prevent
combining melting and refining. jamming on conveyor belts and
transfers,
• A maximum briquette
dimension that is less than 50%
of the minimum hopper opening,
• Low abrasion index to prevent
excessive dusting and yield
loss.

CVS - Water Treatment Plant
Typical Equipment

CVS - Water Treatment Plant
Typical Equipment

CVS - Water Treatment Plant
Design Scope
Scope of services:
üUtilities and storage systems
üWater supply and treatment plants
üScale water and muddy water treatment
plants
üProject planning, feasibility studies and
project management
üMonitoring activities for installation as
well as commissioning and plant operation
üEngineering and project management
for piping systems

CVS - Water Treatment Plant
Design Concept
In the modern metallurgical industry, efficient water management is not only a
means to an end, but a guarantee for economic and ecological process flows.
Perfect integration into the entire system is vital to ensure competitiveness in the
future. The implementation is always adapted to local legal requirements,
environmental protection conditions and customer standards.
Modern water management is mainly affected by three factors:
Øquality of the make-up water,
Øclimatic conditions
Ølegal requirements.
These are partially determined by varying regional conditions. Thanks to our many
years of experience in the various regions of the world and our comprehensive
process knowledge in plant construction, we’re able to professionally incorporate
these localized, varying factors into the plant design.

CVS - Water Treatment Plant
Design Advantageous
Main benefits:
ØAll systems are optimally integrated into the
production plants
ØSingle-source responsibility is ensured for
the entire metallurgical process
ØCompliance with all environmentrelevant
requirements is guaranteed
ØA total solution provider as well as a
supplier of individual products and
components meets all of your requirements

CVS -
Piping and Erection for Oxygen Plant

CVS -
Piping and Erection for Oxygen Plant

CVS - AUTOMATION
EAF – Arc Regulation System
Arc Regulation system (ARS) for
EAF applications is the latest
stage of development which
using PC based Windows XP
operating system.
Using a special algorithm
following benefits can be
offered to customer;
- Fast adjustment of arc length,
- Fast response and fast and
stable control,
- Minimizing of power
consumption,
- Minimizing of flicker effects
due to regulation quality,
- Minimizing of electrode and
refractory consumption.

CVS - AUTOMATION
EAF – Voltage & Current MeasuringSystem
Actual voltage and current of
furnace are read by special
analog/digital converter card
installed on the PC.
Generally the current of primary
side of the transformer is
converted in order to make the
furnace main PLC panel read
these current values.
The conversion is made by
current transformer of
transformer and the matching
transformer (generally supplied
by transformer manufacturer).
The outputs of the current
transducer in the furnace main
PLC panel are inputs for A/D
converter card on PC.

CVS - AUTOMATION
CCM – CASTING EQUIPMENTS

CVS - AUTOMATION
CCM – COOLING BED

CVS - AUTOMATION
FTP – COMBUSTION CHAMBER

CVS - AUTOMATION
FTP – CYCLONE & FILTER

ROLLING MILL DESIGN
From Bar mill to Section Mill, From Chimney to complete Reheating Furnaces, from
Roll Stands and water quenching system to complete Rolling Mill Train, from
Cooling Bed Area to Handling Area, from Flying Shears to Cold Shears, Full
Automation System and from Engineering Services to Turn-Key Plants, CVS offers
economically viable solutions at European standards.
CVS Makina. Company Presentation

CVS - ROLLING MILL
Rolling Mill Turnkey Solution
• All mechanical equipment
incorporates the latest known and
proven technology.
• All mill stands are housingless
series, which are known worldwide
for their rigidity and ease of
maintenance.
• The stands can be used for
producing all grades of steel up to
and including stainless high speed
and high alloy steel.
• Special "robots" are used for quick
roll changing thus reducing the
requirement for costly spares and
stand by equipment.

CVS - ROLLING MILL
Rolling Mill Turnkey Solution
• All the rolling mill stands are
individually driven by motors
• Inter-stands tension of the bar
can be controlled to acceptable
limit.
• Improved quality of the finished
product
• Reduced risk of scrap or cobbled
bar.
• Flying shear is provided to
remove the oversize head of the
bar as it progresses down the
rolling line.
• Maintenance friendly design

CVS - ROLLING MILL
Re-heating Furnace
- up to 100 tph nominal capacity
- furnaces complete with charging table and discharge roller table.
- Walking heart type, pusher type or walking beam type.
- Design of special emphasis on fuel saving and operational efficiency.
- Recuperation, provided to further increase the overall fuel efficiency.
- The discharge machine, called kick-off, controlled from the main pulpit.
- Minimized the manpower so that only furnace pulpit operator will be
responsible for both furnace operation and billet charging.

CVS - ROLLING MILL
Typical Loopers

CVS - ROLLING MILL
Typical Shears

CVS - ROLLING MILL
Typical Binding Machines

CVS - ROLLING MILL
Rolling Mill Cooling Bed and Packing

CVS -
Designing General Layout
The plant is designed according to the latest technology in the field of steel plant
machinery and equipment.
The layout takes full advantage of the rationality of material handling in the plant
in order to obtain the following results:
•Minimum amount of areas occupied
•Optimization of personnel required
•Optimization of production times and costs.
•Best scrap handling
•Future Extension consideration of plant
The layout of the meltshop and the location of Auxiliary Plants have been
carefully analyzed for best logistics inside the plant like raw materials, semi-
products and waste material.

CVS -
Designing General Layout
The choice of the various systems making up the plant is strictly related to the
achievement of the following high-priority objectives, namely:
•Limited investment costs
•High quality products
•High productivity
•Maximum simplicity of operation
•Operation reliability
•Maximum flexibility to meet various market demands.

CVS -
Optimised Process
We lay the foundation for optimized processes with proven, leading products
worldwide, including mechanical and technological engineering for metal production
and rolling as well as process control engineering, drive engineering and power supply.
Integrated online and offline process models reflect decades of practical experience
and help to ensure reliable, reproducible quality.
Our process engineering expertise fuses these products into complete plant solutions
that also accommodate the upstream and downstream processes.
These solutions are the basis for optimal resource use, minimized waiting times and
reduced maintenance and spare parts costs, as well as wide flexibility with respect to
raw materials and the resulting products.
A further factor for competitive production is the quality of information processing.
Production data must be consolidated and compared with planning data to ensure
optimal production flow.

CVS -
Training and Technology Transfer
Whenever CVS recieves an order for steelmaking equipment, engineering services and
know-how transfer are mutually agreed upon between both parties.
Thanks to our experience, there is no question that we know that this is fundamental
basis for succesful production equipment.
The second step of know-how transfer is an off-site training of customer’s engineers,
technicians and skilled workers.
The main target of training on the customer’s site is to familiarise their personel with
hands-on operation ofthe supplied machines and equipment.
The operators and maintenance personel are trained step by step to prepare them for
successful operation of the equipment.

CVS -
Typical Learning Curve for Meltshop
Heats, - Production, tons liquid
900 100000
800
Nominal / month
83.333 ton (120 to)
90000
Typical
80000
expected
values:
700
70000
T o n s / M o n th (l iq u id )
600 0,25 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
4 198 428 548 586 657 670 733 730 762 619 540 674 591 729 698 751 709 796
341,6 17961,1 39941,5 51685,9 54609,7 62349,2 63248,3 67077,4 67.623 71.479 55.998 63082,4 82320,1 69460,9 89.970 86.726 93.902 60000
88.698 98.376
H e a ts / M o n th
500
50000
480%
400
40000
production rate
300
30000
after 8 months
200
20000
100 10000
4100%
0 0
production rate
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 after 10 months
Months X
90 t/heat 120 t/heat

CVS -
Erection and Site Management
Steel Structure:
Project management of engineering companies and fabrication shops
Structural design engineering including static and dynamic calculations
Shop drawings
Preparation of tender documents and evaluation of bids
Quantity survey for invoicing purposes
Fabrication of steel structure
Supervision of fabrication
Design studies for economic solutions

CVS -
Erection and Site Management
For erection engineering, site management and site monitoring, our professional handling
of the site ensures the quality of the plant and guarantees adherence to both the budget
and the schedule.
In addition, our experts have experience in dealing and working together with people from
different cultural groups. With their social sensitivity, motivation and leadership ability,
they ensure a perfectly functioning site.
On-site health and safety
Our staff is well trained with regard to health and safety issues. Compliance with
international, local, customer and company regulations is mandatory, and is assessed on
a regular basis

CVS -
Erection and Site Management
Erection engineering & site management
Cost estimation for site management and
execution of erection
Preparation of time schedules for greenfield
and brownfield projects
Preparation of site organization, site
regulations and safety rules
Preparation of tender documents for the
execution of erection
Final accounting of subcontractors
Change management
Enforcing safety rules and site regulations
Follow-up of progress and budget

CVS -
Erection and Site Management
Assuring quality requirements
Providing facilities & accommodation
Regular coordination with customer
Supervision of erection:
Checking the completeness of supplies
together with the erection contractors
Instructions for storage, erection,
surveying and testing
Securing the timely, proper and
professional execution of erection

CVS -
Erection and Site Management
Main benefits:
Experienced engineers, site managers and supervisors with a well-founded and wide
range of state-of-the-art experience, as well as cultural awareness are available.
Selection of erection contractors is optimized in accordance with the scope of work,
local conditions and their experience.
Single point coordination of the entire site activities including time scheduling for an
optimized erection time, and budget planning, ensures the lowest possible costs and
best possible quality.

CVS -
Turn-key Solution

CVS -
TOSCELIK PROJECT

CVS -
NURSAN EAF PROJECT
NURSAN holding is one of the leader
company in Turkey, especially in South
part of Turkey. Rolling mill plant started
production in 1984.
After his fast grow, it is decided to
make investment for billet production.
New meltshop started production in
2003.
The same fast grow has been seen
thanks to well oriented, expert and
dynamic team.
In 2008, they decided to increase
furnace capacity and signed contract
with CVS for high efficiency,
environmet-friendly, maintenance free
special furnace design.

CVS -
NURSAN EAF PROJECT
Furnace has reached 35 heats/day
average production thanks to co-
operative work between CVS and
NURSAN technical team during
design, assembly and start-up
period.

CVS -
TOSCELIK PROJECT
TOSCELIK project is our one of turn key project in Turkey.
TOSYALI holding was one of the leader company in Turkey especially in pipe
production. They decided to make new meltshop and rolling mill investment for
long production and slab production. They awarded CVS for comple turnkey
solution.
Turnkey Project Covers following Units:
• Steel Structure
• SVC Unit
• 155 ton AC Arc Furnace
• Ladle Furnace
• 6 strand CCM
• 2 Strand Slab Caster
• Hot strip mill
• Fume Treatment Plant
• Water Treatment Plant
• Oxygen Plant
• Other steel plant facilities

DESIGN & ENGINEERING
WE INVEST IN RESEARCH AND DEVELOPMENT FOR
PERPETUAL IMPROVEMENT IN INNOVATION

DESIGN & ENGINEERING
We believe it all starts at the
drawing table

DESIGN & ENGINEERING
We put our experience and
know-how in steel industry
behind our products and
services

DESIGN & ENGINEERING
Our people are the most
important assets at CVS

CVS -
QUALITY MANAGEMENT
QUALITY IS NOT ONLY OUR
POLICY BUT OUR
PHILOSOPHY

CVS -
GENERAL POLICY
WE BELIEVE OUR KNOWLEDGE
WE FEEL OURSELVES IN THE CORE OF STEEL

REFERENCES
EUROPE KURUM DEMIR ALBANIA
VAI POMINI AUSTRIA
ARCELORMITTAL CARINOX BELGIUM
ARCELORMITTAL INDUSTEEL BELGIUM
DUFERCO BELGIUM
ELLWOOD BELGIUM
BH STEEL BOSNIA HERZEGOVINA
STOMANA BULGARIA
ARCELORMITTAL DUNKERQUE FRANCE
BK SERVICE GERMANY
SALZGITTER GERMANY
SMS DEMAG GERMANY
VAI FUCHS GERMANY
HALYVOURGIA GREECE
HALYVOURGIKI GREECE
SIDENOR GREECE
SOVEL GREECE
ABS ITALY
ALSTOM POWER ITALY
ARCEMI ITALY
DANIELI ITALY

REFERENCES
EUROPE FERRIERE NORD ITALY
SMS MEER ITALY
THYSSEN KRUPP ITALY
ARCELORMITTAL LUXEMBOURG
ARCELORMITTAL SKOPJE MACEDONIA
MAKSTIL MACEDONIA
GMZ RUSSIA
MMK RUSSIA
REVYAKINO RUSSIA
CONCAST SWITZERLAND
MTAG MARTI SWITZERLAND
CORUS THE NETHERLANDS
EMSS UKRAINE
SIEMENS VAI UNITED KINGDOM
THAMESTEEL UNITED KINGDOM

REFERENCES
MIDDLE EAST IRAN ALLOY STEEL IRAN
KHAZAR BILLET IRAN
KHORASAN STEEL IRAN
HOD METAL ISRAEL
YEHUDA STEEL ISRAEL
COJSCO JORDAN
JORDAN IRON JORDAN
UNITED IRON JORDAN
SHARQ SOHAR OMAN
AL HADDAD PALESTINE
COPSCO PALESTINE
QATAR STEEL QATAR
AL RAJHI SAUDI ARABIA
AL TUWAIRQI SAUDI ARABIA
AL WAHABI SYRIA

REFERENCES
NORTH AFRICA AL EZZ GROUP EGYPT
ARCO STEEL EGYPT
EGYPTIAN IRON & STEEL EGYPT
SUEZ STEEL EGYPT .
TAYBEH STEEL EGYPT
SONASID MOROCCO

REFERENCES
NORTH AMERICA INDUSTRIAS NACIONALES DOMINICAN REPUBLIC
CHARTER STEEL USA
HOGANAS USA
TIMKEN USA

REFERENCES
TURKEY ASIL CELIK TURKEY
AKDEMIR TURKEY
CER CELIK TURKEY
COLAKOGLU TURKEY
CUKUROVA TURKEY
DEMIRSAN TURKEY
DILER TURKEY
EKINCILER TURKEY
EGE DEMIR CELIK TURKEY
ERDEMIR TURKEY
HASCELIK TURKEY
ICDAS TURKEY
ISDEMIR TURKEY
IZMIR DEMIR CELIK TURKEY
KAPTAN TURKEY
KARDEMIR TURKEY
KROMAN TURKEY
KUMAS TURKEY
NURSAN TURKEY
SIVAS DEMIR CELIK TURKEY
TOSYALI HOLDING TURKEY
YESILYURT TURKEY
YUCEL BORU TURKEY

Thank You For Your Patience
www.cvs.com.tr
CVS Makina. Company Presentation