Technische Daten/ Technical data           

Electric Arc Melting Furnace EAF

Lagernummer / Stocknumber: 09.004

 (Lagernummer bitte bei Anfragen angeben)

Hersteller / Made by: VAI/Clecim 100 ton

( Voest Alpine Austria)

Baujahr / Year of Construction:  1999

 

WVD Werkzeugmaschinen

Spielmannstrasse 24

D-35781 Weilburg

Tel. ++49 (0) 6471 322 610

E-Mail: wvd@online.de

Hompage: www.w-v-d.de

 

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Technical Specificatio


VAI/Clecim 100 t

Electric Arc Melting Furnace (EAF)

With Cranes and Spare Shell

 

COMPLETE WITH:

· 2 X 45 MVA Transformers / Rectifiers

· Power Control, SVC, SCR, PLC System

· Bus Bars

· Carbon Injection System

· Cooling Water System

· 3 Cranes - 180t/63t/20t - 125t/32t - 50t/10t + Electro-Magnets

· Spare Furnace Shell

· General Spare Parts

· Complete Engineering (Basic Designs & Detailed Drawings)

 

TECHNICAL SPECIFICATIONS & SCOPE OF SUPPLY:

 

Main Characteristics

Design Capacity 720,000 Tpy

Nominal Capacity 500,000 Tpy Based On 6720 Hours Per year

Heat Size 100 Tonnes

Hot Heel 15 Tonnes

Tap-To-Tap Time 65 Minutes

Average Tap-To-Tap Time Expected 56 Minutes

Inner Shell Dia. 6700 mm

Inner Shell Dia. On Refractory 5848 mm

Water Cooled Panels Internal Dia. 6400 mm

Shell Height Above Sill Level 3100 mm

 

Water Cooled Panel Height 2700 mm

Furnace Inner Volume 119 M3

Number Of Top Graphite Electrodes 1

Number Of Bottom Electrodes 2

Graphite Electrode Dia. 700 mm

Tap Hole Dia. (Ebt) 200 mm

Nominal Transformer Power 90 MVA

High Voltage 35 Kv

A.C. Low Voltage 730 V

D.C. Max. No Load Voltage 985 V

D.C. Max. Current 87 Ka

Number Of Pulses 12

Number Of Rectifiers 2

Number Of Reactors 2

Reactor Impedance Approx. 0.1 mh

Electrode Max. Speed (Manual) 10 M / Min

Electrode Regulation Speed 4 M / Min (Max.)

 

PRODUCTION CHARACTERISTICS:

 

(A) Original Performance Targets

 

Average Tap-To-Tap Time Not More Than 65 Minutes

Average Electrode Consumption Not More Than 1.3 Kg Per Ton Of Liquid Steel In The Ladle

Average Electric Power Consumption Not More Than 440 Kw Per Ton Of Liquid Steel In The Ladle

Bottom Electrode Refractory Life 1,100 Heats During The Second Bottom Electrode Refractory Life

(B) Tap To Tap And Production

 

For A Tapping Temperature Of 1650°C:

 

Preiod

Time

(Minutes)

Energy

(KwH)

Oxygen

(Nm3)

Charging 1st Bucket

3

 

 

Melting 1st Bucket

12

13,237

760

Charging 2nd Bucket

3

 

 

Melting 2nd Bucket

16

17,114

1,197

Superheating

9

7,882

500

Sampling

2

 

 

Tapping

3

 

 

Turn around

6

 

 

Break down

2

 

 

Total

56

38,233

2,457

 

 

Oxygen Consumption                 25 Nm / Tlq

Lime                                            50 Kg / T

Carbon Injected                          7 Kg / T

Coke (84%)                                15 Kg / T

Graphite Electrode Consumption 1.1 Kg / T

Electrical Energy                        382 Kwh / T

 

Original Contract Guarantee Data

 

Actual Short Circuit Capacity More Than 3906 MVA

Power Factor 0.9 Or Higher

Voltage Fluctuation 1.6% Or Less

Life Of Water Cooled Panels At Least 2000 Heats

Life Of Water Cooled Roof At Least 1100 Heats

 

Cranes Main Design Characteristics

 

Crane No. 1 (Hot Metal)

 

Capacity 180t / 63t / 20t

Span 23 M

Bridge A7

Lifting Speeds:

180 t 6 M / Min.

63 t 11.75 M / Min.

20 t 17.5 M / Min.

Traverse Speeds:

180 t 70.14 M / Min.

63 t 35.5 M / Min.

20 t 33.5 M / Min.

 

Crane No. 2 (Charging)

 

Capacity 125t / 32t

Span 25 M

Bridge A 6

Max. Height 125t 27.5 M

Max. Height 32t 27.5 M

Lifting Speeds:

125 t 8 M / Min.

32 t 12 M / Min.

Traverse Speeds:

125 t 77.30 M / Min.

32 t 42.30 M / Min.

Crane No. 3 (Scrap)

 

Capacity 50t / 10t

Span 27 M

Bridge A 6

Max. Height 50t 28 M

Max. Height 10t 28 M

Lifting Speeds:

50 t 7.8 M / Min.

10 t 13.20 M / Min

Traverse Speeds:

50 t 87.30 M / Min.

10 t 44.60 M / Min.

 

Main Sub-Contractors

 

DC EAF Transformer & Rectifier: .................................................................. Tamini

Circuit Breakers: .................................................................... Merlin Gerin / Joslyn

Hydraulics: ........................................................................................... Rexroth

Harmonic Filter: ...............................................................................Merlin Gerin

Automation Level 1 & 2a: .............................................................. Siemens / A.B.B.

 

 

SCOPE OF SUPPLY – LOCALLY MANUFACTURED:

 

Basic Equipment List

• Spare Furnace Shell

• Crane 180t / 63t / 20t

• Crane 125t / 32t

• Crane 50t / 10t

• Electro-Magnets

• Control Panels

• Spare Parts

 

CONDITION:

 

New, unused and in dry storage being contained in 154 packing cases weighing a total of 511T.

The automation controls and all computer equipment are permanently stored in an air-conditioned environment.

The packing cases are undamaged and un-opened.

The equipment is now offered for immediate delivery.

 

NOTE:

 

An effort has been made to assure the above specifications are accurate, however, it is the sole responsibility of the

buyer to confirm the actual model, capacity, attachments, accessories, extras and condition.

We urge buyers to inspect all machinery and equipment prior to purchase.

Subject to Prior Sale

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


Alle technischen Angaben sind nach unserem besten Wissen erstellt worden, für die wir jedoch keine Haftung übernehmen können. Wir empfehlen Ihnen daher, die Maschine zu besichtigen, um sich von der Richtigkeit der Angaben und dem Zustand der Maschine selbst zu überzeugen.

The above information is correct to the best of our knowledge, but we cannot be held responsible for any errors or omissions.