3Ton Electric Arc Furnace

1. Technical parameter
SN Description Unit Data
1 Rated capacity t 3t
3 Tap to tap time t 150mins. (average)
2 Diameter of shell mm Φ2700
3 Diameter of electrodes pitch circle mm Φ750
4 Electrode diameter mm Φ250
5 Electrode traveling stroke mm 1400
6 Electrode traveling speed m/min Up:4 / down:3
8 Max. steel tapping angle  42°
9 Max. slag tapping angle  12°
10 Max. roof rotary angle  80°
11 Roof lifting height mm 200
12 Rated transformer capacity kVA 2500
13 Primary voltage of transformer kV 6-10
14 Frequency Hz 50
15 Hydraulic system working pressure MPa 8
16 Hydraulic medium  mineral oil
2. Cooling water requirement:
  Water pressure          0.3MPa
  Inlet water temperature    ≤35℃
  Outlet water temperature    ≤55℃
  Circulation flow rate    60T per hour
  Water quality(GB/T10067.1-1988)    Industry clean water
3. Supply list
SN Item Qty Remark
1 Mechanical parts  
1.1 Furnace body 1 Spourt tapping
1.2 Tilting mechanism 1 
1.3 Furnace roof ring 1 
1.4 Roof lifting and rotating mechanism 1 Hydraulic cylinder driving
1.5 Electrode traveling mechanism 1 VVVF driving
1.7 Cooling water distributor 1 With thermometers
1.8 Hydraulic station 1 Working pressure:6MPa
2 Electrical parts 1 
2.1 Furnace transformer 1 2500kVA/10kV
2.2 High voltage switchboard 1 GGA panel, 10kV
2.3 Short network 1 With water cooled cables
2.4  Lower voltage panels 1 
2.5 PLC automation and HMI system 1 Siemens PLC S7-300
Supplied by the Buyer:
1) Furnace refractory lining, Hydraulic medium, lubrication medium and cleaning medium, Graphite electrodes;
2) Civil works and design (Seller provides furnace foundation condition 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 incoming terminals of H.V. Switchboard and EAF transformer, L.V. line is connected to L.V. distribution panel.
5. Quotation conditions
5.1 All present and/or future taxes and duties related to the execution of this Contract, income tax levied on the Contractor’s personnel, tax on foreign contractor’s business operated in Vietnam in accordance with existing laws, shall be borne by the Buyer;
5.2 The Seller will dispatch engineers (mechanical, electrical, PLC, hydraulic, transformer, H.V., etc) to supervise furnace installation and commissioning. Round trip air ticket, local traffic transportation and accommodation cost are borne by the Buyer. Site supervision fee is $300 USD for 1 engineer per day;
5.3 Seller’s engineers will train Buyer’s employees about furnace operation and maintenance at job site.