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Contact Person : Du
Phone Number :  13991381852

Multi-Electrode DC Electric Arc Furnace 5000KVA Rated Capacity for Vanadium-Titanium Slag Resource Recovery ISO 9001

Place of Origin Shaanxi, China
Brand Name Shaanxi Chengda
Certification ISO 9001:2015
Model Number Multi-Electrode DC EAF-VTS 5000
Minimum Order Quantity 1 Set
Price The price will be negotiated based on the technical requirements and supply scope of Party A
Packaging Details Discuss according to the specific requirements of Party A
Delivery Time 2-3 months
Payment Terms L/C,T/T,Western Union
Supply Ability Complete production supply chain, supply on time, and meet quality standards
Product Details
Furnace Type Multi-Electrode DC Electric Arc Furnace Transformer Capacity 5000 KVA
Operating Temperature 1500-1700°C Electrode Configuration 3 Graphite Electrodes Φ400-500mm
Vanadium Recovery Rate ≥85% Iron Recovery Rate ≥98%
Power Factor 0.95-0.98 Control System PLC Fully Automatic Control
Cooling Mode Strong Oil-Water Combined Cooling Daily Processing Capacity 40-60 Tons
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5000KVA DC electric arc furnace

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vanadium-titanium slag recovery furnace

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ISO 9001 hazardous waste treatment equipment

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Product Description

Multi-Electrode DC Electric Arc Furnace for Vanadium-Titanium Slag Resource Recovery

This Multi-Electrode DC Electric Arc Furnace is a specialized smelting solution engineered for high-efficiency resource recovery from vanadium-titanium slag. Utilizing advanced multi-electrode DC arc technology, it achieves superior metal recovery rates and energy efficiency compared to conventional single-electrode or AC furnaces, making it the optimal choice for vanadium-titanium magnetite processing enterprises and metallurgical slag recycling operations.

Core Working Principle

The furnace employs three independently controlled DC graphite electrodes generating stable, high-energy-density plasma arcs between electrodes and the furnace bottom anode. The operating temperature reaches 1500-1700°C, ensuring complete melting of vanadium-titanium slag and efficient reduction of vanadium and iron oxides. With the addition of carbonaceous reductants and lime flux, vanadium-iron alloy settles at the furnace bottom while titanium-rich slag floats on the upper layer, enabling clean slag-metal separation.

Key Technical Advantages

Multi-Electrode DC Technology

  • Triple Electrode Configuration: Three Φ400-500mm graphite electrodes with independent lifting and power control, eliminating arc deflection common in single-electrode DC furnaces.
  • Uniform Heat Distribution: Multi-point arc discharge creates a balanced thermal field, reducing cold spots and improving melt homogeneity by 30% compared to single-electrode designs.
  • Enhanced Electromagnetic Stirring: The multi-electrode arc interaction generates stronger molten pool stirring, accelerating reduction reactions and shortening smelting cycles by 15-20%.

Superior Resource Recovery

  • Vanadium Recovery Rate ≥85%: Deep reduction environment ensures maximum vanadium extraction from complex vanadium-titanium slag matrices.
  • Iron Recovery Rate ≥98%: Near-complete iron reduction transforms waste slag into valuable vanadium-iron alloy.
  • Titanium Slag By-product: Titanium-enriched slag can be further processed for titanium dioxide production or utilized as high-grade refractory raw material.

Energy Efficiency & Environmental Performance

  • Power Factor 0.95-0.98: No reactive power compensation required, reducing electrical infrastructure costs.
  • 30% Lower Electrode Consumption: DC operation combined with optimized multi-electrode control reduces graphite electrode wear vs. AC furnaces.
  • CO-rich Off-gas Utilization: High-temperature flue gas undergoes secondary combustion and waste heat recovery, reducing auxiliary energy consumption by 10-15%.
  • Closed Flue Gas System: Integrated bag filter and desulfurization ensure compliance with EPA and EU emission standards (particulate matter ≤10mg/m³).

Intelligent Control & Reliable Operation

  • PLC Full Automation: S7-1500 PLC with HMI touchscreen for real-time monitoring of current, voltage, temperature, and electrode position.
  • Electrode Auto-Regulation: PID closed-loop control with German Parker proportional valves enables precise electrode height adjustment (±2mm).
  • Multi-Point Bottom Temperature Monitoring: Real-time furnace bottom lining temperature detection with automatic alarm and power adjustment.
  • Furnace Body Tilting: Hydraulic forward tilting up to 35° for complete alloy tapping and 15° for slag discharge.

Equipment Structure

Component Specification
Furnace Shell Welded steel plate with magnesia-carbon composite refractory lining
Furnace Cover Semi-enclosed water-cooled tubular design with observation ports
Electrode System 3 * Φ400-500mm graphite electrodes, independent hydraulic lifting
Bottom Anode Multi-point contact conductive bottom electrode, anti-arc deflection design
Power Supply Thyristor rectifier 5000KVA, 35kV primary / 150-300V secondary
Short Network Large-section water-cooled cable + copper tube parallel inverse arrangement
Hydraulic System Hydraulic pump station with accumulator for electrode, cover, and tilting control
Cooling System Pressurized closed-loop water cooling with temperature and flow monitoring
Charging System Multi-point automatic feeding with ring distributor and screw conveyor
Flue Gas Treatment Secondary combustion chamber + quench tower + bag filter + desulfurization

Technical Parameters

Parameter Value
Transformer Capacity 5000 KVA
Primary Voltage 35 kV
Secondary Voltage 150-300 V (multi-tap regulation)
Operating Temperature 1500-1700°C
Furnace Shell Diameter Φ5200 mm
Electrode Diameter Φ400-500 mm * 3 electrodes
Electrode Pitch Circle Φ1800 ± 100 mm
Daily Processing Capacity 40-60 tons
Power Consumption 800-1000 kWh/ton product
Electrode Consumption 2-3 kg/ton (60% lower than AC)
Vanadium Recovery Rate ≥85%
Iron Recovery Rate ≥98%
Power Factor 0.95-0.98
Cooling Water Consumption ~80 m³/h
Lining Service Life 300-500 heats

Application Scope

  • Vanadium-titanium magnetite smelting slag resource recovery
  • Vanadium extraction tailings comprehensive utilization
  • Metallurgical solid waste containing vanadium, titanium, and iron
  • Low-grade vanadium-bearing slag deep reduction processing
  • Ferroalloy production by-product slag recycling

After-Sales Service

  • 1-year warranty on core components (electrode system, hydraulic system, transformer)
  • Professional engineer team for on-site installation, commissioning, and operator training
  • 24/7 remote technical support and troubleshooting
  • Spare parts supply guarantee with global logistics network
  • Lining replacement and furnace maintenance services available

Contact us today for a customized technical proposal and quotation based on your specific vanadium-titanium slag processing requirements.