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FUME TREATMENT PLANTS

CVS MAKINA - Com pany Presentation

CVS provides plants & equipment for minimills,

also in turn-key solution.

CVS covers the complete design andmanufacturing activities for green-field projects

as well as revamping/upgrading of existingplants and equipment.

CVS manufactures spare parts & componentsfor meltshops & rolling mills.

CVS provides technical assistance andconsulting service to steel production.

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Quick Info

CVS MAKINA - Com pany Presentation

CVS headquarter is placed in the industrial

region of Gebze, just east of Istanbul, closeto many major ports

Our modern facilities consists of more than

40,000 sqm of closed area and a land ofadditional approx. 40,000 sqm

CVS workforce is formed by over than 500

specialized workers and engineers with a

modern machinery park to undertake eventhe most challenging projects.

Over than 200 engineers and administrative

employees are involved in the design and

management of the projects.

C VS - F T PDesign 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.

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C VS - F T PDesign Concept

The dedusting system consists of a

set of fume collection points and a

set of ducting lines (water-cooled orradiant type), which convey the

various emissions to the bag filter

already under implementation.

CVS designs FTP with the following

aim:

minimum operation andmaintenance 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 emissions

generated by the EAF, the primary emission generated by the LF and the emission

emitted by the Material Handling System.

C VS - F T PDesign Concept

Design considers following working

profile:

Melting phase

EAF in melting phase (roof closed,

primary fumes suction line open);

Suction from the canopy hood toprovide 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 lineclosed);

Suction from the canopy hood;

LF in heating phase;

MHS in operation.

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C VS - F T PBag Fil ter Unit

Huge flowrate calls for pulse jet filter whichare suction-typefilters, equipped withcompressed air automatic bag cleaningsystem. The filter itself is composed of 2parallel lines, made up of severalcompartmentscontaininga fixed number ofbags.The filter casing is made of welded steelstructures with external reinforced walls. Itis subdivided into parallel compartments insuch a way that each compartmentcan beseparated from the gas stream duringcleaning cycle (off line cleaning design).

C VS - F T PTypical Fi lter Unit

Each compartmentconsists of a raw gaschamber below and a clean gaschamber above divided by the bagsupportingplate. The lower chambercomposesthe filter body, contains thefiltering bags and the dust collecting

hoppers. The upper chamber contains theinjectors for the compressed airdistribution to the bags for cleaningpurpose.

The two chambers are connected to the central collector respectively to the gas inlet andoutlet by means of separation dampers. Dampers for lower chambers are manuallyactuated, being utilized in closed position as an additional safety in the event ofmaintenanceor inspection; the dampers of the upper chambers, instead, are providedwith pneumatic actuators, being automaticallyclosed while performingmaintenance andbag cleaning in OFF-LINE mode.The cleaning system of the filtering bags is located inside the clean gas chamber. It iscomposedof one distributor per row of bags, completed with compressed air feeder toeach bag.

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C VS - F T PTypical Canoppy Hood

The canopy hood is placed on the top of the building roof above the EAF and has thepurpose to collect the emissions generated during charging & tapping phases of theEAF. Besides, it has the duty to ventilate the building during the EAF power-on phaseand to such the necessary dilution air to finally cool down the primary emissiontemperaturebefore to be processed by the filtering unit.The shape and volume of the canopy hood depends on several factors, such as:distance between EAF mouth and bottom line of the canopy hoodEAF shell diameterposition of the EAF in the baygeometricalshape of the building roof. The canopy hood is designed to allow an

adequate resident time of the fumes

during the EAF most critical operatingconditions (i.e. charging and tapping).Another important factor taken in dueconsideration for the canopy hood designis to avoid the flow back phenomena. Infact, proper dimensioning of the canopyhood can give enough volume to destroykinetic energy of downward fumes.

C VS - F T PTypical Pelletizer

The pelletizing machine transformsthe dust collected by the bag filterinto nodules through the addition ofa binder (water), which is sprayed ina rotary plate. The pellet formsowing to their rolling on the raking

plate of the pelletizing machine,which is put in slow rotation. Thanksto the raking position of the plateand to the material moving, thegreater parts get to the surface whilethe smaller parts pass to the lowerbeds.

As soon as the plate is full of pellets (already formed), these pass over its rim andreach the discharge chute.The system includes also a hopper to be located underneath the pelletizing machineand designed to receive and store the pellets; the hopper is fitted with sliding door forpellet discharge on trucks; the sliding door is driven by a hydraulic mechanism fed by adedicated power pack.

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C VS - F T PAUTOMATION

Operationof complete dedustingsystem is syncronised by automationsystem.Distributionof flow to primaryandsecondary section of EAF iscontrolledby two dampers locatedon the lines actuated automaticallyby automation.

Damper position and main fan speedsaccording to 5 main modes of furnace

operation can be changed by HMI inFTP control room.Additionally, fan speed is adjustedduring meltingphase according to thevaluecomingfrom pressure transmittermeasuring the pressure insidecombustionchamber.

C VS - F T PDesign Focus

CYCLONS

STACK

EAF

COOLER

SETTLINGCHAMBER

W.C. DUCT

CANOPY HOOD

FAN FANBAG-FILTER

AUX

LF

Reliability Reduced maintenance requirements Reduced operating cost (electrical energy, compressed air)

Low residual dust content at stack Low noise emission technology Environment Friendly

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C VS - F T PTypical Drawing

CVS -Converter Off-Gas System

WE FOLLOW LAST TECHNOLOGIESWHEN WE MANUFACTURE OFF GASSYSTEMS

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CVS -Converter Off-Gas System

Noise enclosures

Noise limits of 85

dB(A) in workingareasNoise limits of 45dB(A) in facilities

boundaries

Noise enclosures SOLUTIONS that can be:

retrofitted to existing meltshop

or adapted to existing plant layouts

TO RESPECT:

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Electric Meltshops

Reduction of the cost ofemission control by meansof:

Low suction volumes madepossible through advancedcomputer modelling of airflow at the design stage.

High efficiency equipmentusing technology developedby CVS design centers.

Tailored systems optimisedfor each customers processrequirements.

Fan Unit and filtered fume chimney

Unit Bag Filterwith jet cleaning system

Natural Draft Cooler

Hoods & Secondary Fumes Collectors

Hot Quenching

Hot Quenching - the cooling offumes by injection of finelyatomised droplets of water -eliminates the need for theinstallation of long water-cooledducting with forced or natural draft

coolers used in conventionalcooling systems.

Saving in:

Installation

Operation

Maintenance costs

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Integrated Steel Mills

CVS technology applied tothe control of secondaryemissions - in particularlythose associated with thecasting & pouring of molten

metals.

Integrated Steel Mills

Control of secondary emission from sinterbands and converter shops via:wet filtering technology (scrubbers,

ESPs). dry filtering methods (fabric filters,ESPs).

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Integrated Steel Mills

The close capture controlconcept on multiple sourcefume (travel-l-vent) finds anappropriate application to theevacuation of coke pushing

dust and fume.

Effective & efficient captureof fumes and dust before itreaches a workers breathingzone.

Reduced air volume (up to65%) saving dust collectorsize and operating energy.

Compliance with RegulatoryStatutes for coke pushing

emission control system.

CVS -QUALITY MANA GEMENT

QUALITY IS NOT ONLY OUR

POLICY BUT OUR

PHILOSOPHY

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CVS -GENERAL PO LICY

WE FEEL OURSELVES IN THE CORE OF STEEL

WE BELIEVE OUR KNOWLEDGE

FTP REFERENCES

Nr. Customer Country Location/site

Plant capacity

TechnologyYear ofstart-up

(m3/h)

1 NIKSIC Montenegro Niksic 1.200.000 Pulse-jet FF 2009

2 BILECIK DEMIR CELIK Turkey Bilecik 500.000 Pulse-jet FF 2009

3 TOSCELIK Turkey Iskenderun 2.300.000 Pulse-jet FF 2009

4 ENERGOMASSPETSTAL Ukrain Kramatorsk 1.000.000 Pulse-jet FF 2009

5 SOCIETEUNIVERS ACIER Morocco Casablanca 2.000.000 Pulse-jet FF 2009

6 ALEZZ STEEL AL DEKHILIA Egypt Alexandria 1.400.000 Reverse-air FF 2009

7 TAYBAH STEEL CO Egypt Al Mansura 600.000 Pulse-jet FF 2008

8 COJSCO Jordan Amman 600.000 Pulse-jet FF 2006

9 YESILYURT DEMIR CELIK AS Turkey Samsun 2.000.000 Pulse-jet FF 2006

10 CER ELK ENDSTR A.. Turkey Izmir 1.200.000 Pulse-jet FF 2006

11 JORDAN IRON & STEEL CO. Jordan Amman 150.000 Pulse-jet FF 2005

12 JORDAN IRON & STEEL CO. Jordan Amman 150.000 Pulse-jet FF 2005

13 NURSAN METALURJI AS Turkey Iskenderun 1.000.000 Pulse-jet FF 2005

14 CER METAL AS Turkey Izmir 1.500.000 Pulse-jet FF 2005

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CVS Makina. Company Pre sentation

Thank You For Your Patiencewww.cvs.com.tr

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