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Contact Person : Du
Phone Number :  13991381852

3200KVA DC Electric Arc Furnace Thyristor Rectifier Unit for Silicomanganese Alloy Smelting

Place of Origin Shaanxi, China
Brand Name Shaanxi Chengda
Certification ISO 9001:2015
Model Number CD-DC-3200
Minimum Order Quantity 1 Set
Price USD 240000-480000 / Set
Packaging Details Furnace shell in seaworthy steel frame, rectifier and PLC cabinets in vacuum bag with desiccant, electrode column and busbar in export crates
Delivery Time 2~3 months after drawing approval
Payment Terms L/C,D/A,D/P,T/T,Western Union,
Supply Ability 50 sets per year, complete production chain with on time delivery
Product Details
Rated Transformer Capacity 3200 KVA Rated DC Voltage 260-440 V
Rated DC Current 9-12 KA Graphite Electrode Diameter 300 Mm
Hearth Anode Diameter 500 Mm Furnace Shell Inside Diameter 2700 Mm
Bath Depth 1050 Mm Tap-to-Tap Time 32-45 Min
Annual Output 9000-14000 T Silicomanganese Combined Recovery 85 Percent And Above
Electrode Consumption 8 Kg/t Alloy Maximum Rectifier Type 6-pulse Thyristor Rectifier
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3200KVA thyristor rectifier unit

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DC arc furnace rectifier silicomanganese

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ferroalloy smelting rectifier equipment

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Product Description

3200KVA DC Electric Arc Furnace for Silicomanganese Alloy Smelting

A 3200KVA direct current furnace built for silicomanganese and manganese alloy smelting in the 9000 to 14000 tonne per year range. The single electrode DC arc gives a steady, deep heat that suits the strongly reducing conditions silicomanganese needs, and the quiet arc keeps the surrounding manganese and silicon reduction zones intact.

Core Selling Points

  • Stable arc power for a narrow process window. Thyristor regulation holds DC current within plus or minus 1 percent, so reduction conditions do not drift as the burden descends.
  • Higher silicon and manganese yield. Deep bath coverage plus electromagnetic circulation supports combined recovery of 85 percent and above on standard manganese ore blends.
  • Half the graphite of an AC unit. One 300mm electrode brings consumption near 8 kg per tonne of alloy and removes two electrode columns from the maintenance routine.
  • Grid friendly at mid capacity. Flicker reduction above 50 percent and low harmonic emission let the unit share a 10kV or 35kV feeder with plant loads.
  • Fast changeover between grades. The small shell and tilting design let the plant switch between silicomanganese and ferromanganese with minimal transition scrap.

Complete Unit

  • Furnace shell with water-cooled panels, magnesia hearth and conductive anode
  • Single graphite electrode, 300 mm, hydraulic lift with servo valve control
  • Rectifier transformer, thyristor rectifier cabinet, DC busbar and water-cooled cable
  • PLC with automatic arc power control, trend logging and alarm package
  • Charging chute position, tapping spout and slag door, tilting drive
  • Cooling water station and off-gas hood with dust collection interface

Technical Parameters

ParameterValue
Rated transformer capacity3200 kVA
Rated DC voltage260-440 V
Rated DC current9-12 kA
Graphite electrode diameter300 mm
Hearth anode diameter500 mm
Furnace shell inside diameter2700 mm
Bath depth1050 mm
Tap-to-tap time32-45 min
Annual output9000-14000 t silicomanganese
Combined manganese and silicon recovery85 percent and above
Electrode consumption≤ 8 kg/t alloy
Noise level at platform≤ 82 dB(A)

Application

Silicomanganese smelting from manganese ore and quartz blends, ferromanganese campaigns on the same shell, manganese rich slag re-treatment, and small steel plant captive alloy production.

Support

Ore blend testing, slag basicity design, power study, layout drawing, manufacture, installation supervision, commissioning and operator training are included. Delivery 2 to 3 months. Share your ore analysis and target tonnes per year and we will size the unit.