cvs general presentation

8/8/2019 CVS General Presentation

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-Design-Manufacturing

- Erection- Training

- Consultancy-Innovation- Process

Development

Offices:- CVS Headquarter

(Turkey)- CVS Europe (Italy)

- CVS Egypt- CVS Ukraine

- CVS Iran

[email protected] www.cvs.com.tr

CVS MAKINA - Company Presentation

http://www.cvs.com.tr/

mailto:[email protected]




CVS provides plants & equipment for minimills,also in “turn-key” solution.

CVS covers the complete design andmanufacturing activities for green-field projectsas well as revamping/upgrading of existingplants and equipment.

CVS manufactures spare parts & components

for meltshops & rolling mills.

CVS provides technical assistance andconsulting service to steel production.

Quick Info


CVS headquarter is placed in the industrialregion of Gebze, just east of Istanbul, close

to many major ports

Our modern facilities consists of more than40,000 sqm of closed area and a land ofadditional approx. 40,000 sqm

CVS workforce is formed by over than 500specialized workers and engineers with amodern machinery park to undertake eventhe most challenging projects.

Over than 200 engineers and administrativeemployees are involved in the design andmanagement of the projects.



CVS Makina. Company Presentation

MELTSHOP DESIGN

From Water Cooled Panels to complete Electric Arc Furnaces, from Ladles to completeLadle Furnaces, from Tundishes to complete Continuous Casting Machines, from Ducts

to complete Fume Treatment Systems and from Engineering Services to Turn-KeyPlants, CVS offers economically viable solutions at European standards.

CVS - E.A.F.

Design Concept

• CVS has more than 50 Electric ArcFurnaces supplied worldwide

• Furnace size from 12 to 180 tappedsteel

• Some EAF futures:

– AC type

– EBT tapping system

– conductive or traditionalelectrode arms

– original roof lifting design

– full platform & split shell design



CVS - EAF

Design Main Objective

Low production costs

Higher process flexibility.

Increasing productivitywhile improving energyefficiency.

mproving the quality ofthe finished product.

Meet environmentalrequirements at aminimum cost.

Better coordination ofprocess/environmentalrequirements

CVS - E.A.F.

Design Benefits

Gantry design for self-supporting furnace roof Prismatic roller-guide system for electrode masts High-current-conducting electrode arms in copper-clad box design State-of-the-art electrode control system

Split-shell design Copper or combi-panels with high-speed cooling water flow Oxygen and carbon injectionAll bottom tapping systems EBT, EO-EBT, RBT, OBT) Special hot-metal charging facilities Continuous DRI/HBI feeding systems

Main benefits Increased productivity due to shortest melting and idle times High power input (up to 1 MVA/t) High-impedance furnace

Arc voltage up to 1,500 V Proven low-consumption values energy, electrodes, refractories, etc.) Low tapping temperatures and minimum slag carry-over Minimum maintenance with the use of heavy mill-type components Highest flexibility with respect to charge materials



CVS - EAF

Chemical Energy System Concept

CVS has special oxy-burner system for higher productivity

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 hydrocarbonburner, all in the same housing.

Three jet burners are installed in the upper shell’s side wall, while the forth oneis located in the EBT area. The functions of the injection system are :

decarburization of the steel baththermal energy inputformation of foaming slagreduced need of charge carbon with the scrapthe 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

The location and the direction of the burners are determined to reduce the coldspots effect generated by the three-phase arc of the furnace, thus obtaining aneven and faster melting.

• 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

The lance manipulator for the Electric Arc Furnace is primarily designed forsafe oxygen injection. As well, solid materials like Carbon can be given fromburner case.

The Carbon injection in the bath have demonstrated of outmost importance towork with proper foaming of the slag and to obtain recarburisation of liquid steelbath if required to control bath composition.

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

Slag Foaming

Foaming slag is used to increase the

thermal efficiency of the furnaceduring the refining period, when theside walls are fully exposed to thearc radiation.

A foaming slag will rise and coverthe electric arcs, thus permitting theuse of a high tap setting withoutincreasing the thermal load on thefurnace walls.

In addition, an electrical arc covered by a foaming slag will have a higher efficiency intransferring the energy into the steel phase.

CVS -

Slag Foaming

Slag foaming is obtained byinjecting oxygen into the liquidsteel, where mainly iron isoxidized according to the

reaction:

O2 + 2 Fe = 2 (FeO)

Carbon powder is then injectedsimultaneously into the slagphase where iron oxide isreduced.

(FeO) + C = Fe + CO (g)

The resulting CO gas is a criticalcomponent in order to obtain afoaming 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 3-D V iew



CVS - EAF

Typical 3-D V iew

CVS - EAF

Roof L ifting Operation

CVS special design of Roof Liftingsystem yields for easy and safeoperation.



CVS - E.A.F.

Auxiliaries

Scrap BucketBucketTransfer Car

Orange Grabs

CVS - E.A.F.

Auxiliaries



CVS - SECONDARY METALLURGY

LF Design Advantageous

Water-cooled ladle roof equippedwith indirect fume collecting hoodto reduce steel oxidation Roof lifting mechanism viahydraulic cylinder Electrode arms with reducedelectrode pitch diameterWater-cooled secondary circuitand water cooled flexible cables Electro-hydraulic electroderegulation

The Ladle Furnace is conceived for reheating the steel in the ladle placed on aladle car and will be designed and built according to the most modern techniques inthe field and will be in particular provided with:

Water-cooled secondary circuit and water cooled flexible cables


VD / VOD Plant

The purpose of secondary metallurgical steel treatment under vacuum conditions isto 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-metallicinclusions.




VD / VOD Plant

PURPOSE

• H removal

• N removal• S removal

• C removal (VOD)

RESULTS

• H contents < 1 ppm• N contents -30/50 %• S contents -80/95 %• C contents < 20 ppm

PROCESS

•Temperature loss duringvacuum treatment

DESIGN FEATURES

• Dimensioning of vacuum tank

• Vacuum hopper

• Dust separator


VD / VOD Plant

Hydrogen Removal

The final hydrogen content of a heat depends on the pressure of vacuum vessel, the amountof the purging gas and the CO-gas development.

Even fully killed heats can be treated due to intensive degassing supported by lift gas. Forlowest hydrogen levels the pressure must be lower than 1 mbar with according treatmenttimes of 15 - 20 min depending on the starting level.

Nitrogen Removal

Even in VD-Plants nitrogen removal is preferably carried out. Having low sulphur andoxygen levels this process as well requires low vacuum levels with less than 1mbar forapprox. 15 - 20 min.

Argon is purged by the porous plugs from the ladle bottom with approx. 10 Nl/(min, t steel).




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 vacuumtreatment start. The EAF furnace slag has to be reduced during tapping to values below orequal to 5 kg/t Steel.

For low sulphur levels the pressure must be lower than 1 mbar with according treatmenttimes of 15 - 20 min depending on the starting sulphur level. Argon purging by the porousplug 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. Thepressure 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.


VD / VOD Steam Ejector Pumps




VD / VOD Plant

PROCESS

- Modelling of the VOD process

- Optimisation EAF-VOD

- Slag reduction

- Desulphurisation

VOD PROCESS CONTROL

-Calculation functions

- Thermodynamic model

- Example of oxygen blowing

THERMODYNAMICSC - removal at low pCO and high temp

3 3 22 3C Cr O CO Cr %( * % ) * *

*

( / . )

C f Cr p

a f

Cr COT

Cr O C

2 3 40536 25 6 3

33

10

2 3

EAF

VOD

COST FOR REMOVING C IN EAF AND VOD

OPTIMUM RANGE

C O S T

0 0.5 1.0CARBON CONTENT


VD / VOD Plant




Ladle Inert G as Use

Homogenisation of The Bath Temperature

Homogenisation of the Bath Chemical

Composition Better Mixing Between Steel and Slags

Better yield of additives (ferroalloys)

More Clean steel

a. Refractory material on the ladle bottomb. Porous platec. Porous refractory insertd. Locking equipmente. Gas inlet

CVS - Liquid Steel Auxiliaries

Lad le and Lad le Cars




Ladle Emergency Stirrer Lance

This gas stirring system is designed to feed inert gas through a refractory lance foremergency stirring if the porous plug does not work properly.

The refractory lance is held and plunged into the steel bath by a structure adjacent tothe ladle roof.


Ladle Preheaters / Driers

Ladle pre-heater/drier consists ofa circular, concave lid

a centrally located fuel-air burner.

The burner creates a high-velocity, extended flame, which brings the thermal energydown to the ladle bottom.

The combustion air is generated by a centrifugal fan located in a protected position in theburner stand and led via the cover suspension arm to the burner.

The hydraulic power for lid movements is provided by an independent hydraulic powerpack.

The burner is directly ignited by means of a high voltage device after automatic purgingof the combustion chamber.




Ladle Preheaters / Driers

CVS - CCM

Design Concept



CVS - CCM

Design Concept

CCM can be designed to produce square billets in the sections between 100 to 160mm2, and blooms between 180 to 260 mm2.

Special designs for beam blank and round sections between 160 to 440 mm can bedone.

Radius of 5-12 meter and mould length of 750-1000 mm can be designed according toproject requirement.

For some special casting, vertical continuous casting application can be considered.

The CCM can be fitted with up to eight casting strands in order to satisfy theproduction schedule given by the EAF.

According to customer request, CCM can be equipped with the necessary modernequipment to produce high quality casted products, such as tundish of delta type toreduce inclusions in the mould, long copper tube to improve primary cooling on thebillet surface, automatic mould level control system, high casting radius to reducestress during unbending, secondary spray cooling divided in three zone for a bettercooling effect and control, walking beam cooling bed for the straightening of the longbillets.

CVS - CCM

Typical Sectional View



CVS - CCM

Typical Sectional View

-Ladle Turrets-Tudish-Tundish Car-Ladle Car-Moulds-Mould and Strand Stirrers-Automatic Mould Level Control-Foot Rolls-Spray bending sector-Mould Oscillating Tables-Tudish Preheater-Rigid Dummy Bars-Withdrawal and straighining unit-Rigid Dummy Bar Parking Device-Intermediate Roller Table-Billet Side Transfer-Collecting Table-Cooling Bed

CVS - CCM

Equipments



-Delta Shape- High Residence Time- Better Inclusion Flotation- High Tundish Life- Adaptable to close casting

CVS - CCM

Tundishes

CVS - CCM

Tundish Pre-heaters



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

Electro-mechanical HydraulicAir springMechanical Spring

CVS - CCM

Secondary Cooling

-Heat resistant concrete walls- Modular structure- Steel doors and walkways allow maintenanceaccess 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 mistdesign- 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

Pinch Rolls

CVS - CCM

Lateral Transfer System

Designed to move the billets from theelevated position above the discharge rollertable to the cooling bed area.

The transfer system is composed by abridge beam that spans over the removalarea and translates across it.



CVS - CCM

Cooling Bed

The bed is composed by two frames having aset of mounted blades: one frame is fixedwhile the other is alternately moved in avertical and horizontal direction by two sets ofhydraulic cylinders.

During its movement, the movable frameadvances the billets along the fixed frame thusallowing an uniform cooling of each bar.

CVS

SCRAP BUCKET PRESS

UP TO 60 % INCREASE IN THESCRAP DENSITY IN SCRAP BUCKETTHANKS TO THE HYDRAULIC FORCEUP TO 250 TON LOAD.



CVS - SCRAP BUCKET PRESS

WHY TO CHOOSE

- Can be installed on any type scrap

bucket

- Lowest Investment Cost

- Easiest Installation

- Consists of a large verticalpressure block that compresses thescrap within the bucket.

- Since it is totally protected, it ispractically maintenance free.

- High speed and fully automateddesign.


FEATURES

- All safety features can beprovided as per EuropeanNorms.

- Rigorously tested prior to thedelivery

- Load up to 250 ton

- Heavy and Rigid construction

- Convenient and SafeOperation

- Giving Flexibility for ScrapPreparation




CVS ADVANTAGES

-Shorter tap-to-tap time

The possibility of a higher scrapdensity allows the power-off timeto be shortened by as much as 1bucket less charge.

-Improved productivity

-Thanks to a faster operation, thepower off time can be reduced by

up to 20%.

-It's possible to achieve an overallup to 10 % increase in productivity.


PRESS OPERATION

PRESS OPERATION

PARK POSITION



CVS - SCRAP SHEAR

The design of the CVS press shears is based on the concept with cylindric guides for theshear head ensuring a precise cut between the upper and lower blades.

The shear is build within a robust, twist resistant welded construction allowinginstallation directly onto concrete without anchorage and therefore having low foundationcosts.

The shear is equipped with a hydraulically operated filling box which allows charging ofthe shear during production. This design decreases the charging time and increases theproductivity.

The machined pressing box ensures the precise movement of the compactors as well asfast and stick free pre-compaction of bulky scrap.

The extra long vertical holder guides allow the scrap that has been pre-compacted bythe side-compactor to be pressed against the lowered vertical holder, allowing bales canbe produced as well.

CVS - SCRAP SHEAR



CVS -

Scrap preheating Systems

Preheating of scrap by utilizing sensible heat of exhaust gas emitted from an EAF havebeen investigated for many years in many plants.As a result of scrap preheating, notonly the electric power and time required for steelmaking but electrode and refractoryconsumption has decreased.

Condition of temperature on the preheating system:- Inlet temperature of preheater: approx. 8000C – 2000C- Outlet tempearture of preheater: approx. 2500C – 5 00C- Temperature of preheated scrap: approx. 4000C – 1000C- Temperature at combustion chamber inlet widely varies between 12000C to 3000Caccording to the time and conditions of the steelmaking stages.

Outlet temperatures of the preheating system stays at low temperatures whichindicates 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°CThe 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 thetotal 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 bucketbefore charged into an EAF and thus contributes towards energy saving.

Gas evacuated from the EAF is led to a combustion chamber through a suction ducttogether with air induced through gap between EAF elbow and sliding sleeve duct to burnCO contained in the gas, a part of this burned gas is introduced in to the bucket placed atthe scrap to heat scrap. After passing the bucket, the gas is returned to the combustionchamber 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 besent 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 mixingwith 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, specialsealing devices are provided between hood pipe and inlet duct, hood and scrap buckettop edge, bucket cylinder and clamp shells.

By use of the adequate sealing devices, air introduced into the scrap pre-heater is verysmall.

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 additionalworker.

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 beingdeformed.



CVS -

Carbon Handling System

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

CVS -

Carbon Handling System

Design Features Up to 5.000 ton/month Starting Carbon

Size: 0-100 mmHumidity: Up to %25

End Product:Humidity: Less than 1 %3-8 mm Carbon (10-40 %)0-3 mm Carbon (30-80 %)

Dust: Less than 6 % Energy Consumption:

Less than 8 kWh/ton C NG Consumption:

Less than 30 Nm3/ton C

Design Advantages

Low dust Fast Pay-back Minimum Investment

Maintenance Free Low operation Cost Higher productivity Safe Operation Fully-automaticAdaptable forautomatic feeding



CVS - FTP

Design Concept

FTP DESIGN

From EAF Roof Elbow to Stack, CVS provides complete Fume Treatment Plants withengineering, design, manufacturing and installation. Design considers also LF, MHS,

canoppy and other dust emitting points by the goal of ZERO DUST EMITION toenvironment. CVS offers economically viable solutions at European standards.

-Water Cooled Ducts-Combustion Chamber Panels-Elbows-Radiant Ducts

-Water Cooled Dampers-Filter Bags-Damper Actuators-Pressure Tank For Filter-Pulse jet valves

CVS - FTP

Design Focus

Reliability

Reduced maintenance requirements Reduced operating cost (electrical energy, compressed air) Low residual dust content at stack Low noise emission technology Environment Friendly



CVS - FTP

Design Concept

The dedusting system consists of aset of fume collection points and aset of ducting lines (water-cooled orradiant type), which convey thevarious emissions to the bag filteralready under implementation.

CVS designs FTP with the followingaim:•minimum operation and

maintenance costs;•optimal utilization of spaces inside/ outside the meltshop;•automatic operation, “hands-off”type; andtwenty-four hours operation.

CVS designs FTP to collect, suck and treat the primary and secondary emissionsgenerated by the EAF, the primary emission generated by the LF and the emission

emitted by the Material Handling System.

CVS - FTP

Design Concept

Design considers following workingprofile:

Melting phase•EAF in melting phase (roof closed,primary fumes suction line open);•Suction from the canopy hood toprovide meltshop ventilation andprimary fumes cooling;•LF in heating phase;•MHS in operation.

Charging/Tapping phase•EAF in charging/tapping phase (roof

open, primary fumes suction lineclosed);•Suction from the canopy hood;•LF in heating phase;•MHS in operation.



CVS - FTP

Typical Filter Unit

Natural (Hair Pin) Coolers

CVS - FTP

Natural Coolers



CVS - FTP

Stack

CVS - FTP

Other Equipments

Canoppy Hood

Pelletizer



CVS -

Converter Off-Gas System

WE FOLLOW LAST TECHNOLOGIES

WHEN WE MANUFACTURE OFF GASSYSTEMS

CVS -

Converter Off-Gas System



CVS -

Material Handling System

-Conveyor bands-Impact idlers-Return idlers-Drive pulleys-Tail pulley-Bend pulley-Belt scraper-Electrical Motors-Couplings-Drive reducer

Spare Parts For MHS

CVS - MHS

Design Concept

The plant is divided into three main parts:

a) Equipment for Ferro-alloys and additives storage from receiving hoppers to thebins 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 andcharging into scrap buckets.



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 chargingprocedures.

CVS - DRI Continuous Feeding System

Continuous feeding of HBI is typically performed to:

• To eliminate one or more buckets from the charge,thereby reducing heat losses and power off time• Allow high rates of HBI use.

• Boost productivity and reduce heat losses bycombining melting and refining.

Physical requirements forcontinuous feeding of HBI andDRI:

• HBI must be present as single

briquettes or pieces to preventjamming on conveyor belts andtransfers,

• A maximum briquettedimension that is less than 50%of the minimum hopper opening,

• Low abrasion index to preventexcessive dusting and yieldloss.



CVS - Slag Processing System

Primary and secondary jaw crushers are designed tocrush all kinds of stone regardless the hardness andabrasives.

They are the most advanced jaw crushers availablewith hydraulic settings, central lubrication, highperformance, efficiency and capacities.

Slag has been recycled and effectively used as a base coarse material (road bedmaterial). Now, it is also possible to use soil-improvement material (for hardening of soft

ground).

CVS - Slag Processing System

-Removal of slag residue from refined iron 0 - 8 mm

-Metal recovery from slag and waste incineration ash

-Production of concentrates with a high metal content in first step

-Hydraulic sizing for the removal of fine components at cut - points 1 - 8 mm

-Removal of filler material from the fine fraction prior to the use of next step separators

-Reduction of crusher feed by pre-separation off non-metallic slags

-Selective comminution of metal-slagcomposites, special types of crusher areavailable



CVS - Water Treatment Plant

Typical Equipment


Design Scope

Scope of services:

Utilities and storage systems

Water supply and treatment plants

Scale water and muddy water treatmentplants

Project planning, feasibility studies andproject management

Monitoring activities for installation aswell as commissioning and plant operation

Engineering and project managementfor piping systems




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 thefuture. The implementation is always adapted to local legal requirements,environmental protection conditions and customer standards.

Modern water management is mainly affected by three factors:

quality of the make-up water,

climatic conditions

legal requirements.

These are partially determined by varying regional conditions. Thanks to our manyyears of experience in the various regions of the world and our comprehensiveprocess knowledge in plant construction, we’re able to professionally incorporatethese localized, varying factors into the plant design.


Design Advantageous

Main benefits:

All systems are optimally integrated into theproduction plants

Single-source responsibility is ensured forthe entire metallurgical process

Compliance with all environmentrelevantrequirements is guaranteed

A total solution provider as well as asupplier of individual products andcomponents meets all of your requirements



CVS -

Pip ing and Erection for Oxygen Plant

CVS -

P ip ing and Erection for Oxygen Plant



CVS - AUTOMATION

EAF – Arc Regulation System

Arc Regulation system (ARS) forEAF applications is the lateststage of development which

using PC based Windows XPoperating system.

Using a special algorithmfollowing benefits can beoffered to customer;- Fast adjustment of arc length,- Fast response and fast andstable control,- Minimizing of powerconsumption,

- Minimizing of flicker effectsdue to regulation quality,- Minimizing of electrode andrefractory consumption.

CVS - AUTOMATION

EAF – Voltage & Current MeasuringSystem

Actual voltage and current offurnace are read by specialanalog/digital converter cardinstalled on the PC.

Generally the current of primaryside of the transformer isconverted in order to make thefurnace main PLC panel readthese current values.

The conversion is made bycurrent transformer oftransformer and the matchingtransformer (generally suppliedby transformer manufacturer).

The outputs of the currenttransducer in the furnace mainPLC panel are inputs for A/Dconverter card on PC.



CVS - AUTOMATION

CCM – CASTING EQUIPMENTS

CVS - AUTOMATION

FTP – COMBUSTION CHAMBER



CVS Makina. Company Presentation

ROLLING MILL DESIGN

From Bar mill to Section Mill, From Chimney to complete Reheating Furnaces, fromRoll Stands and water quenching system to complete Rolling Mill Train, fromCooling Bed Area to Handling Area, from Flying Shears to Cold Shears, FullAutomation System and from Engineering Services to Turn-Key Plants, CVS offers

economically viable solutions at European standards.

CVS - ROLLING MILL

Rolling Mill Turnkey Solution

• All mechanical equipmentincorporates the latest known andproven technology.

• All mill stands are housinglessseries, which are known worldwidefor their rigidity and ease ofmaintenance.

• The stands can be used forproducing all grades of steel up toand including stainless high speedand high alloy steel.

• Special "robots" are used for quick

roll changing thus reducing therequirement for costly spares andstand by equipment.



CVS - ROLLING MILL

Rolling Mill Turnkey Solution

• All the rolling mill stands areindividually driven by motors

• Inter-stands tension of the barcan be controlled to acceptablelimit.

• Improved quality of the finishedproduct

• Reduced risk of scrap or cobbledbar.

• Flying shear is provided toremove the oversize head of thebar as it progresses down therolling line.

• Maintenance friendly design

-Reheating Furnaces-Gear Boxes

-Vertical Stands-Horizantal Stands-Rolls-Shafts-Stand Sliding System-Intermediate Stands-Finish Stands-Crop Flying Shear-Flying Shear-Cooling Bed-Binding Machine-Start-Stop

-Lopper-Weighing system-Guides-Cold Shear-Clamping

CVS - ROLLING MILL

Equipments



CVS - ROLLING MILL

Stands

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 design considers latest technology in the field of steel plant machinery andequipment.

The layout takes full advantage of the rationality of material handling in the plantin 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 plantThe layout of the meltshop and the location of Auxiliary Plants have beencarefully analyzed for best logistics inside the plant like raw materials, semi-products and waste material.

Design Focus

•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 productsworldwide, including mechanical and technological engineering for metal productionand rolling as well as process control engineering, drive engineering and power supply.

Integrated online and offline process models reflect decades of practical experienceand help to ensure reliable, reproducible quality.

Our process engineering expertise fuses these products into complete plant solutionsthat also accommodate the upstream and downstream processes.

These solutions are the basis for optimal resource use, minimized waiting times andreduced maintenance and spare parts costs, as well as wide flexibility with respect toraw 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 ensureoptimal production flow.

CVS -

Training and Technology Transfer

Whenever CVS recieves an order for steelmaking equipment, engineering services andknow-how transfer are mutually agreed upon between both parties.

Thanks to our experience, there is no question that we know that this is fundamentalbasis 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 withhands-on operation ofthe supplied machines and equipment.

The operators and maintenance personel are trained step by step to prepare them forsuccessful operation of the equipment.



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 -


For erection engineering, site management and site monitoring, our professional handlingof the site ensures the quality of the plant and guarantees adherence to both the budgetand the schedule.

In addition, our experts have experience in dealing and working together with people fromdifferent 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 withinternational, local, customer and company regulations is mandatory, and is assessed ona regular basis



CVS -


Erection engineering & site management

Cost estimation for site management and

execution of erection

Preparation of time schedules for greenfieldand brownfield projects

Preparation of site organization, siteregulations and safety rules

Preparation of tender documents for theexecution of erection

Final accounting of subcontractors

Change management

Enforcing safety rules and site regulations

Follow-up of progress and budget

CVS -


Assuring quality requirements

Providing facilities & accommodation

Regular coordination with customer

Supervision of erection:

Checking the completeness of suppliestogether with the erection contractorsInstructions for storage, erection,surveying and testing

Securing the timely, proper andprofessional execution of erection



CVS -


Main benefits:

Experienced engineers, site managers and supervisors with a well-founded and widerange 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 anoptimized erection time, and budget planning, ensures the lowest possible costs andbest possible quality.

CVS -

Turn-key Solution



CVS -

NURSAN EAF PROJECT

Furnace has reached 35 heats/day

average production thanks to co-operative work between CVS andNURSAN technical team duringdesign, assembly and start-upperiod.

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 pipeproduction. They decided to make new meltshop and rolling mill investment for

long production and slab production. They awarded CVS for comple turnkeysolution.

Turnkey Project Covers following Units:

• Steel Structure• SVC Unit• 155 ton AC Arc Furnace• Ladle Furnace• 6 strand CCM• Fume Treatment Plant

• Water Treatment Plant• Oxygen Plant• Other steel plant facilities



INNOVATION

We believe it all starts at thedrawing table

WE INVEST IN RESEARCH AND DEVELOPMENT FOR

PERPETUAL IMPROVEMENT IN INNOVATION

DESIGN & ENGINEERING

We put our experience andknow-how in steel industrybehind our products and

services



DESIGN & ENGINEERING

Our people are the mostimportant assets at CVS

CVS -

QUALITY MANAGEMENT

QUALITY IS NOT ONLY OUR

POLICY BUT OUR

PHILOSOPHY



CVS -

GENERAL POLICY

WE FEEL OURSELVES IN THE CORE OF STEEL

WE BELIEVE OUR KNOWLEDGE

REFERENCES

ARCELORMITTAL CARINOX BELGIUMARCELORMITTAL INDUSTEEL BELGIUMDUFERCO BELGIUMELLWOOD BELGIUMBH STEEL BOSNIA HERZEGOVINAARCELORMITTAL DUNKERQUE FRANCEGERLAFINGEN SWITZERLAND

BENTELER GERMANYBK SERVICE GERMANYSALZGITTER GERMANYARCELOR MITTAL HAMBURG GERMANYHALYVOURGIA GREECEHALYVOURGIKI GREECESIDENOR GREECE

SOVEL GREECE

EUROPE - 1



REFERENCES

SOVEL GREECEABS ITALYALSTOM POWER ITALYARCEMI ITALYFERRIERE NORD ITALY

THYSSEN KRUPP ITALYKOMOTEK BULGARIAKREMIKOVSKI BULGARIASTOMANA BULGARIAARCELORMITTAL LUXEMBOURGCORUS THE NETHERLANDSTHAMESTEEL UNITED KINGDOM

NIKSIC MONTENEGROCMC SISAK CROTIACELSA UK ENGLAND

EUROPE - 2

REFERENCES

ARCELORMITTAL SKOPJE MACEDONIA

ARCELOR MITTAL TEMIRTAU KAZAKHISTANDHT METAL AZERBAIJANDETAL AZERBAIJANBAKU POLAT DOKME AZERBAIJAN

MAKSTIL MACEDONIAGMZ RUSSIAMMK RUSSIAREVYAKINO RUSSIAGORKY STEEL RUSSIANOVOROSSMETAL RUSSIAREVYAKINO RUSSIA

EMSS UKRAINEJSC DNEPROSPETSSTAL UKRAINEAMK ALCHEVSK UKRAINEMAKAEVKA STEEL WORKS UKRAINE

CIS COUNTRIES



REFERENCES

IRAN ALLOY STEEL IRANKHAZAR BILLET IRANKHORASAN STEEL IRAN

MUBAREKEH STEEL IRANMETEOR IRANPERSIAN FOOLAD IRANCOJSCO JORDANJORDAN IRON JORDANUNITED IRON JORDANSHARQ SOHAR OMMAN

NATIONAL DEVELOPMENT CO OMMANAL HADDAD PALESTINECOPSCO PALESTINEQATAR STEEL QATAR

AL RAJHI SAUDI ARABIAAL TUWAIRQI SAUDI ARABIANATIONAL STEEL SAUDI ARABIA

AL WAHABI SYRIAMED STEEL SYRIA

MIDDLE EAST - 1

REFERENCES

AL EZZ GROUP EGYPTARCO STEEL EGYPTBESHAY STEEL EGYPTEGYPTIAN IRON & STEEL EGYPT

SUEZ STEEL EGYPT .TAYBEH STEEL EGYPTSONASID MOROCCOARCELOR MITTAL ANNABA MOROCCOSOCIETE UNIVERS ACIER MOROCCOHOD METAL ISRAELYEHUDA STEEL ISRAEL

MIDDLE EAST-2

INDUSTRIAS NACIONALES DOMINICAN REPUBLICCHARTER STEEL USAHOGANAS USATIMKEN USA

NORTH AMERICA



REFERENCES

ASIL CELIK TURKEYAKDEMIR TURKEY

BILECIK D.C. TURKEYCEMTAS TURKEYCER CELIK TURKEYCOLAKOGLU TURKEYCUKUROVA TURKEYDEMIRSAN TURKEYDILER TURKEYEKINCILER TURKEY

EGE DEMIR CELIK TURKEYERDEMIR TURKEYHASCELIK TURKEYICDAS TURKEYISDEMIR TURKEYIZMIR DEMIR CELIK TURKEY

KAPTAN TURKEYKARDEMIR TURKEYKROMAN TURKEYKUMAS TURKEYNURSAN TURKEYSIVAS DEMIR CELIK TURKEYTOSYALI HOLDING TURKEYYESILYURT TURKEY

YUCEL BORU TURKEY

TURKEY

cvs general presentation

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