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Contact Person : Du
Phone Number :  13991381852

5000KVA DC Electric Arc Furnace Rectifier Power Supply System for High Carbon Ferrochrome Smelting

Place of Origin Shaanxi, China
Brand Name Shaanxi Chengda
Certification ISO 9001:2015
Model Number CD-DC-5000
Minimum Order Quantity 1 Set
Price USD 380000-750000 / Set
Packaging Details Main frame in seaworthy steel cradle, rectifier and PLC cabinets in vacuum bag with desiccant, electrode column and busbar on export pallets
Delivery Time 2~3 months after drawing approval
Payment Terms L/C,D/A,D/P,T/T,Western Union,
Supply Ability 40 sets per year, complete production chain with on time delivery
Product Details
Rated Transformer Capacity 5000 KVA Rated DC Voltage 320-500 V
Rated DC Current 12-16 KA Graphite Electrode Diameter 350 Mm
Hearth Anode Diameter 600 Mm Furnace Shell Inside Diameter 3200 Mm
Bath Depth 1250 Mm Tap-to-Tap Time 40-50 Min
Annual Output 12000-18000 T High Carbon Ferrochrome Electrode Consumption 9 Kg/t Alloy Maximum
Noise Level 82 DB(A) Maximum At Platform Rectifier Type 6-pulse Thyristor Rectifier
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DC arc furnace rectifier power supply

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5000KVA ferrochrome smelting rectifier

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high carbon ferrochrome refining equipment

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Product Description

5000KVA DC Electric Arc Furnace for High Carbon Ferrochrome Smelting

A 5000KVA direct current smelting furnace sized for ferrochrome plants in the 12000 to 18000 tonne per year band. One 350mm graphite electrode works against a conductive hearth anode, so the arc stays vertical and stable over a deep bath. It is the capacity step that most plants choose when moving from an AC unit to DC without rebuilding the whole workshop.

Why DC Arc Technology Changes the Economics

  • Single electrode, roughly half the graphite bill. Graphite use stays near 9 kg per tonne of alloy, and only one column needs jointing, holding and regulation.
  • Flicker reduction above 50 percent. The 6-pulse thyristor rectifier feeds smooth direct current, so the furnace runs on a 35kV feeder shared with rolling or crushing loads without a dedicated compensator.
  • Electromagnetic stirring built into the arc. DC current drives a circulation loop in the melt, so chromium and carbon spread evenly across the bath and the tap analysis stays tight.
  • Quiet, wall friendly operation. Arc noise stays at or below 82 dB(A) and there is no rotating hot spot on the sidewall, so lining life runs longer than on an AC shell of the same diameter.
  • Fast payback on a small footprint. Short busbar run, compact transformer bay and one water-cooled cable set keep civil works and installation labour low.

Scope of Supply

  • Furnace shell with water-cooled panels, magnesia ramming hearth and conductive anode block
  • Single graphite electrode, 350 mm, water-cooled holder with hydraulic lift
  • Rectifier transformer, 6-pulse thyristor rectifier, DC busbar and water-cooled cable
  • Hydraulic tilting drive with angle and pressure interlocks
  • PLC automatic arc control with impedance regulation and alarm package
  • Cooling water station, off-gas hood and dust collection interface

Technical Parameters

ParameterValue
Rated transformer capacity5000 kVA
Rated DC voltage320-500 V
Rated DC current12-16 kA
Graphite electrode diameter350 mm
Hearth anode diameter600 mm
Furnace shell inside diameter3200 mm
Bath depth1250 mm
Tap-to-tap time40-50 min
Annual output12000-18000 t high carbon ferrochrome
Electrode consumption≤ 9 kg/t alloy
Noise level at platform≤ 82 dB(A)
Cooling water flow120-180 m³/h closed loop

Application

High carbon ferrochrome and charge chrome smelting at 12000 to 18000 tonnes per year, ferromanganese campaigns on the same shell, and nickel bearing residue smelting where a deep reducing bath is required.

Engineering Support and Delivery

We size the unit from your ore assay, transformer capacity and target tonnage, then deliver process design, manufacture, installation supervision, commissioning and operator training with a one year spare parts package. Delivery is normally 2 to 3 months after drawing approval. Send your ore analysis for a tailored quotation.