15-25t VOD (Steam Jet Pump) Refining Furnace

1. Technical parameter
1.1 Vacuum container
Diameter        4100mm
Height         4200mm
1.2 Vacuum container cover
Diameter        4300mm
Height         1500mm
Lifting speed       1-1.5m/min
Lifting stroke       500mm
Lifting mode       Hydraulic
1.3 Wire feeder
Wire diameter       Ф6-13mm
Feeding speed       0-300m/min (VVVF)
Motor power       11kw         
1.4 Cover car
Speed         2-20m/min
Driven mode       Mechanical (VVVF)
Cables and pipes      Articulated chain
1.5 Steam injection pump
Levels 5
Air exhaust quantity 150 kg/h (≤67Pa)
Pumping amount variables properties 67～105Pa
Limiting vacuum at pump port 26 Pa
For vacuum time ≤8 min (P≤67Pa)
Steam pressure ≥0.8 MPa
Steam temperature 185-200℃
Steam consumption 7t/h (main pump start)
1.6 Cooling water system
Water quality       Industrial soft water
PH          7-8.5
Hardness        ≤10 german degree
1.7 Equipment cooling water (clean circulation)
Pressure        ≥0.3 MPa
Inlet temperature      ≤32℃
Outlet temperature      ≤50℃
Circulation flow       90 m3/h
1.8 Vacuum pump cooling water (muddy circulation)
Pressure        ≥0.3 MPa
Circulation flow       450 t/h
1.9 Argon system
Working pressure      0.3-0.8Mpa (Max. 1.2MPa)
Consumption       150 L/min
Purity         99.99%
1.10 Oxygen lance and valve stand
Oxygen lance traveling stroke    1500mm
Oxygen lance traveling speed    1.5m/min
Oxygen working pressure     0.8MPa
Oxygen consumption      1200m3/h
1.11 Compressed air system
Working pressure      0.5 MPa
Consumption       1.5m3/min
1.12 Hydraulic system
Working pressure      12MPa
Tank volume       1m3
2. Supply list
SN Description Qty
1 Vacuum container 1 set
2 Vacuum container cover 1 set
3 Cover car 1 set
4 Vacuum pipeline (estimated: 60m) 1 set
5 Compressed air system 1 set
6 Cooling water distributor 1 set
7 Argon system 1 set
8 Oxygen lance and valve stand 1 set
9 Wire feeder 1 set
10 Hydraulic system 1 set
11 Steam injection pump c/w valves  1 set
12 L.V. control system 1 set
13 PLC automation & HMI (Siemens S7) 1 set
14 Installation material 1 set
Supplied by the Buyer:
1) Furnace refractory material, hydraulic medium, lubrication medium and cleaning medium, installation;
2) Civil works and design (Seller provides furnace foundation drawings and civil work requirements), embedded furnace foundation parts;
3) Steam, water supply and gas supply main inlet are laid to Seller’s equipment inlet, L.V. incoming line is connected to Seller’s L.V. distribution panel.