BẢN thiết kế cơ khí lò tinh luyện thép LF (LADLE FURNACE)

LADLE FURNACE
(LF)
MECHANICAL DESIGN


C O M PA N Y   O V E R V I E W
CVS TURKEY
CVS EUROPE
Italy‐Udine

Design

CVS MIDDLE EAST
Egypt‐Cairo

CVS CIS
Ukraine‐Donetsk

FROM CONCEPT TO COMMISSIONING

Manufacturing
Erection
Training
Consultancy
Innovation
Process Development
CVS POLAND CVS IRAN CVS INDIA CVS S.KOREA CVS SINGAPORE CVS INDONESIA CVS USA CVS GREECE CVS TRADE B.V.
Pune
Seoul
Jakarta
New York

Athens
Amsterdam
Warsaw
Tahran
Singapore

                          www.cvs.com.tr


C O M PA N Y   O V E R V I E W
 CVS provides plants & equipments for minimills
(Meltshops & Rolling Mills), as well as “turn‐key”
solutions in this regard.
 CVS covers the complete design and manufacturing
activities for green‐field
green field projects as well as
revamping/upgrading of existing plants and
equipments.
 CVS manufactures spare parts & components for
Meltshops & Rolling Mills & Off
Off‐Gas
Gas Systems.
Systems
 CVS provides technical assistance and consulting
service to steel production.


C O M PA N Y   O V E R V I E W

 CVS headquarter is located in the most sophisticated

industrial region of Turkey; Gebze (50 km to Istanbul
city center),
center) close to many major ports.
ports
 Our modern facilities consist of three integrated
major‐sized
j
workshops
p equipped
q pp with p
post‐modern
machinery parks and three engineering buildings
summing up approx. 100,000 sqm.
 CVS workforce is formed by over than 750
specialized staff with a modern machinery park to
undertake even the most challenging projects.
 More than 270 engineers and administrative
employees are involved in the design and
management of the projects.


ACTIVITIES


L F   ‐ A D VA N TA G E S
 The advantages of a ladle furnace can be defined
as follows :
• Saving of energy
• Saving of ferroalloy
• Increase productivity

• Decreasingg refiningg time of EAF
• Decreasing tapping temperature at EAF
• Precise temperature control
• Improved of inclusions, cleanliness of the steel
• Possibilities of wrong analysis limited


L F   ‐ D E S I G N   A D VA N TA G E S

 The 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:
 Water‐cooled
l
secondary circuit and water
cooled flexible cables
 Water‐cooled ladle roof equipped with
i di t fume
indirect
f
collecting
ll ti hood
h d to
t reduce
d
steel
t l
oxidation

 Roof lifting mechanism via hydraulic cylinder
 Electrode arms with reduced electrode pitch
diameter
 Water‐cooled secondary circuit and water
cooled flexible cables
 Electro‐hydraulic electrode regulation


LF ‐ GENERAL PLAN VIEW


LF ‐ SIDE VIEW


LF ‐ EQUIPMENTS
MAIN EQUIPMENTS
Furnace Support Structure
Roof Lifting Device
Electrode Lifting System
Lifting System
Electrode Arms
Transformer
Secondary Circuit
Water Cooled Roof
Water Cooled Pipes for Direct Suction
Direct Suction
Sampling and Measuring Devices
Emergency Lance
Electrode Nippling System
Material Handling System

Wire Feedingg Machine
Ladle Car
Hyraulic Unit


SUPPORT STRUCTURE

Structure

Heat Shield
Protection

Different Designs
According to The Requests
of The Facility


ROOF & ELECTRODE LIFTING SYSTEM
Advanced Engineering

Creative Solutions


ROOF LIFTING DEVICE
Any Kind of Lifting Systems

Roof lifting mechanism
via hydraulic cylinder
Protection

ELECTRODE LIFTING SYSTEM
Support
structure
Guide 
rollers

Hydraulic
cylinders


ELECTRODE COLUMNS

Water cooled head

1

3

Each electrode column is guided by 
two sets of guides and each has 

2

4

four rollers


ELECTRODE COLUMNS ‐ GUIDES

The Guide Rollers Are Lubricated By a
Centralized Lubrication System

4   To p   a n d
4 Bottom
to Guide
Each 
Electrode
Column


ELECTRODE ARMS
According to Furnace Capacities Suitable And
Different Designs of Electrode Arms

Copper Cladded
Type Arms

Electro‐Hydraulic
Electrode
Regulation


ELECTRODE ARMS

Robbust Design of Arms

Bus Bar Type
Arms

Steel Plate

Copper Bus
Tu b e s


ELECTRODE HOLDING SYSTEM
Water Cooled
Electrode Holder

Cu Contact
Pad

Force Optimization


ELECTRODE HOLDING SYSTEM

Conductive
Cu Tube

Water Cooled
Electrode Holder

Electrode
Arm
Hydraulic System

Electrode

SECONDARY CIRCUIT
C o p p e r C o n n e c t i o n B e t w e e n T h e   Po w e r Tra n s fo r m e r
and High Current Cables and Electrode Arms

Cu Bus Type System


SECONDARY CIRCUIT

Flexible 
Bus Bar

Different
Lubrication
Systems


BUS TYPE SYSTEM

Complete Design for
Bus Type System


BUS TYPE SYSTEM

Tra n s fo r m e r

Flexible 

Bus Bar


WAT E R   C O O L E D   C A B L E S
Water Cooled Cables

Head Connection

C o n n e c t i o n B e t w e e n F u r n a c e E l e c t r o d e A r m s a n d   Tra n s fo r m e r
Secondary System