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
