China 40t Electric Arc Furnace

1. Technical parameter
1.1 Furnace capacity
Nominal tapping capacity 40t
Average tapping capacity 50t (Hot heel: 6-8t)
Tap to tap time(tap 50t liquid steel) 70 mins. (100% scrap, 2 times top charging)
Method of charging Top (using charging buckets and hopper)
Method of tapping EBT
1.2 Furnace body
Shell internal diameterФ4800mm
Side wall construction Water cooled ,tubular
Forward tilting angle (steel tapping)20°
Backward tilting angle (slag tapping) 12°
Roof construction Water-cooled, tubular
Roof lifting distance 400mm
Roof rotation angle 65°
Furnace door size 1000mmx900mm (WxH)
1.3 Heavy current system
Electrode diameterФ500mm (UHP)
Pitch circle diameter Ф1200mm
Electrode lifting distance3100mm
Electrode traveling speed 9 / 6m/min (up/down, hydraulic driven)
Short net Impedance ≤0.65+j3mΩ
Three phase unbalance≤5%
1.4 Furnace transformer & series reactor
Transformer capacity 32MVA+20% (long term)
Primary voltage 20kV, 3P, 50Hz
Secondary voltage 650-500-350V (15 taps, ABB tap changer)
Secondary current 36950A
Cooling modeOFWF
Reactor capacity 6MVar
Reactor tap100%, 70%, 50%, 25%, 0%
1.5 Hydraulic system
Hydraulic working pressure12MPa
Hydraulic mediumWater-glycol (Buyer's scope)
1.6 Cooling water
Water pressure 0.4MPa
Inlet water temperature ≤35ºC
Outlet water temperature ≤55ºC
Total water circulation flow 600 t/h
Emergency water 300 t (for 30mins. @ 0.25MPa)
Water quality Industrial clean water
1.7 Lance & carbon injection system
Oxygen working pressure 0.8-1.0MPa
Oxygen flow rate2900Nm3/h (max.)
Oxygen nozzle speed 2 Mach
CNG working pressure 0.4MPa
CNG flow rate 800Nm3/h (max.)
Compressed air working pressure0.8MPa
Compressed air consumption 600Nm3/h (max.)
Carbon powder consumption 20-30kg/min.
1.8 Others
L.V. power installation capacity 100kW
Furnace shell weight 105t (with refractory lining)
2.Supply list & break down price list

SNItemQtyRemark1Mechnical parts 1.1Furnace body (upper shell and lower shell)1 set 1.2Tilting mechanism1 set 1.3Water cooled roof and water pipe1 set 1.4Roof lifting and rotating mechanism1 set 1.5Electrode arms and traveling mechanism1 set 1.6EBT platform1 set 1.7Rotation frame locking device1 set 1.8Electrode nippling station1 set 1.9Cooling water distributor1 set 2Electrical parts 2.1Transformer 32MVA/20kV c/w cooler1 setABB tap changer2.2Reactor 6MVar/20kV c/w cooler1 set 2.220kV high voltage system (GBC40.5kV panel)1 setSchneider VCB2.3Short network with water cooled cables1 set 2.4Lower voltage system1 set 2.5PLC automation and HMI system1 setSiemens PLC S7-3003Auxiliary items 3.1Hydraulic power pack1 setProportional valve & pump make: Parker3.2Compressed air device1 set 3.3Lubrication station1 setXi'an or Qidong3.4Water cooled door oxygen lance manipulator1 setwith hydraulic station3.5CNG, oxygen, carbon wall lance (4 pcs.)1 setwith valves stand3.6Steel temperature & measuring thermometer1 setwith LED display4Others (packing, china trans., customs, etc)1 FOB china port price

Supplied by the Buyer:
1) Installation and installation materials, Hydraulic medium, lubrication medium and cleaning medium, Graphite
electrodes, Furnace refractory lining;
2) Civil works and design (Seller provides furnace foundation drawings and civil work requirements), embedded
furnace foundation parts;
3) Water supply and gas supply main inlet are laid to Seller's equipment connection point, H.V. incoming line is
connected to Seller's H.V. panel and furnace transformer terminals, L.V. line is connected to Seller's L.V.
distribution panel.
3. Delivery: 6 month after the Seller receiving down payment.
Reference:
Sales team:
Ville Electric Company will keep up with the century, the epoch,
Sincerely look forward to your cooperation and win-win!
Create brilliant!