Metal production
EAF, LF, VD & VOD - 70 T
Ref. No.:EAF200601
YEAR:2011
Brand:ZL KLADNO, ETD AS, ASEA, FEST-HF
Qty:1 Second-hand ELECTRIC ARC FURNACE
Specification
| Description | EAF, LF, VD & VOD - 70 T |
| Ref. No. | EAF200601 |
| Year | 2011 |
| Brand | ZL KLADNO, ETD AS, ASEA, FEST-HF |
| Qty. 1 Second-hand ELECTRIC ARC FURNACE | |
| Mfc. | ZL Kladno Capacity |
| Output capacity | 25 t/h Annual capacity |
| Power input | max. 25 MVA Average |
| Kind of scrap | External scrap Internal scrap (rest from forge and foundry) |
| Internal scrap - turnings (rest from machinery) Iron Ore | |
| THREE - PHASE TRANSFORMER | |
| Mfc. | ETD TRANSFORMATORS A.S. Built |
| Type | YR33E-4 Norm |
| LADLE FURNACE & VACUUM DEGASSING (VD) | |
| Mfc. | ASEA – SKF Built |
| Type of ladles | 5 x 60 T, 2 x 90 T, 2 x 120 T, 1 x 150 T |
| VACUUM OXYGEN DECARBURISING (VOD) | |
| Mfc. | FEST-HF Built |
| Qty. 1 Second-hand ELECTRIC ARC FURNACE | |
| Mfc. | ZL Kladno Capacity |
| Output capacity | 25 t/h Annual capacity |
| Power input | max. 25 MVA Average |
| Kind of scrap | External scrap Internal scrap (rest from forge and foundry) |
| Internal scrap - turnings (rest from machinery) Iron Ore | |
| Tap-to-Tap time | 150 min Power ON |
| Burner/Jet | 4 x JetBox PTI - USA (4x supersonic lance, include 2x carbon injection) |
| Oxygen consumption | 45 m³/t Natural gas consumption |
| Oxygen injection type | 4xJetBox (PTI - USA ) |
| Carbon injection | 10 kg/t Carbon injection type |
| Carbon injection max. flow rate | 200 kg/h |
| Coke injected consumption | 20 kg/min Coke charge consumption |
| Lime charge consumption | 35 - 45 kg/t Limestone charge consumption |
| Dolomite charge consumption | 12 kg/t Basket capacity max. |
| Metallic charge (Scrap, DRI,HBI,….) | 95% scrap, 5% pig iron |
| Water-cooled panels + roof Tapping design | RBT - round bottom tapping |
| Type of refractory | MC Type of sliding gate |
| Shell diameter | 4450 mm (5300 mm - without refractory) |
| Electric energy consumption | 400 kWh/t |
| Electrode consumption | 2.5 – 3.5 kg/t - Electrode diameter 500 mm |
| Electrode regulation system type | Automatic |
| Electrode movement type (Hydraulic, winch,…) | Hydraulic |
| Argon blowing system | three porous plug (0N2 + Ar ) |
| Dust collection/off gas system | primary 60 000 Nm³/hour Secondary 300 000 Nm³/hour |
| Annual production (2017) | 38 800 t |
| Steel grades | Carbon steel Alloy steel Stainless steel |
| THREE - PHASE TRANSFORMER | |
| Mfc. | ETD TRANSFORMATORS A.S. Built |
| Type | YR33E-4 Norm |
| Connection | YIII Cooling |
| Total weight | 88.6 T Transport with oil |
| LADLE FURNACE & VACUUM DEGASSING (VD) | |
| Mfc. | ASEA – SKF Built |
| Type of ladle | 5 x 60 T, 2 x 90 T, 2 x 120 T, 1 x 150 T |
| Capacity | 40 – 140 Ton liquid Tap to tap time |
| Steel grades | carbon steel , alloy steel, stainless steel |
| Heating rates | 1.5 – 4.5 °C/min. Ladle dia. |
| Electrical energy consumption | 120 kWh/t Electrode consumption |
| Electrode dia. | 400 mm Type of refractory |
| Holding time | average – 30 min. below 1 Torr H2 max. |
| Dust collection /off gas system | primary 25 000 Nm³/hour |
| Pumping speed (steam water) | 10 000 Nm³/hour |
| Argon blowing system | Two porous plug on each ladle, Ladle 150 T – 3 porous plugs (Ar & N2) |
| VACUUM OXYGEN DECARBURISING (VOD) | |
| Mfc. | FEST-HF Built |
| Starting & Holding Pressure | 736 -1.0 Torr Holding time |
| Pumping speed (steam water) | 600 000 Nm³/h H2 max. |
| Type of ladles | 60, 90, 120, 150 Ton |
| Argon blowing system | Two porous plug on each ladle, Ladle 150 T – 3 porous plugs (Ar & N2) |
| Type of refractory | MC + AMC /MCr |