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Phone Number :  13991381852

36,000 kVA DC Titanium Slag Smelting Furnace with Closed Sealed Type for High-Titanium Slag Production

  • 36,000 kVA DC Titanium Slag Smelting Furnace with Closed Sealed Type for High-Titanium Slag Production
Place of Origin China
Brand Name Shaanxi Chengda
Certification ISO 9001
Model Number Negotiate based on equipment processing capacity
Minimum Order Quantity 1 unit
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 months
Payment Terms L/C,T/T,Western Union
Supply Ability Complete production supply chain, supply on time, and meet quality standards
Product Details
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Product Description

Titanium Slag Smelting Furnace Equipment


Titanium Slag Smelting Furnace (also known as Titanium Slag Submerged Arc Furnace) is a specialized industrial electric furnace for smelting ilmenite concentrates into high-titanium slag (raw material for titanium dioxide & titanium sponge) and pig iron by carbothermic reduction at high temperature.

I. Equipment Classification & Structural Features


1. By Power Supply Mode


  • AC Titanium Slag Furnace (Three-Phase)
    • Standard industrial model, 12,500~36,000 kVA
    • Three graphite/Soderberg electrodes, circular/rectangular furnace body
    • Mature technology, widely used for acid-soluble & chlorinated slag

  • DC Titanium Slag Furnace
    • High-efficiency, 9,000~40,000 kW+
    • Lower power/electrode consumption (-10~15% power, -40% electrode)
    • Better stirring, higher product purity, lower noise


2. By Sealing Level


  • Closed Sealed Type
    • Fully enclosed, negative/micro-positive pressure
    • For high-titanium slag (TiO₂ >90%), CO gas recovery
    • Ideal for chlorination process feedstock

  • Semi-Closed Type
    • Partial hood, open/partially open operation
    • For acid-soluble titanium slag (TiO₂ 75~80%)
    • Lower investment, simpler maintenance


3. By Furnace Shape


  • Circular Furnace (≤40,000 kVA)
    • Uniform heating, good stability
    • Widely used for medium/small capacity

  • Rectangular Furnace (≥40,000 kVA)
    • For ultra-large capacity, higher output
    • Better for continuous large-scale production


II. Complete Equipment Composition


1. Furnace Body System


  • Steel Shell: Cylindrical/rectangular steel structure, water-cooled
  • Refractory Lining: High-density magnesia-chrome bricks, corundum refractory
  • Furnace Cover: Sealed water-cooled hood with feeding/observation ports
  • Tapping System: Iron notch (pig iron) & slag notch (titanium slag)

2. Electromechanical System


  • Electrodes:
    • Soderberg (self-baking) electrode: φ700~1200 mm
    • Graphite electrode: φ600~800 mm (high-purity)

  • Electrode Holder: Hydraulic clamping, water-cooled copper contact shoes
  • Lifting System: Hydraulic cylinder, auto lift/regulation
  • Pressure Feeding: Automatic electrode pressing (15~50 mm/stroke)

3. Power Supply System


  • Transformer: Special furnace transformer, on-load voltage regulation
    • Primary: 35 kV; Secondary: 110~420 V (multi-stage)
    • Capacity: 12,600 kVA, 25,500 kVA, 33,000 kVA, 36,000 kVA

  • Short Network: Low-impedance copper busbar/cable, balanced three-phase
  • Cooling: Oil-water cooling for transformer; water cooling for electrodes/hood

4. Auxiliary Systems


  • Feeding: Auto batching, multi-point charging, continuous feeding
  • Flue Gas: Secondary combustion, waste heat recovery, baghouse/alkaline scrubbing
  • Cooling: Circulating water system (≥0.3 MPa)
  • Control: DCS auto-control (voltage, current, electrode, temperature)

III. Core Technical Parameters (Typical Models)



Parameter 12,600 kVA (AC) 25,500 kVA (AC) 33,000 kVA (DC)
Transformer Capacity 12,600 kVA 25,500 kVA 33,000 kW
Operation Voltage 150~300 V 180~360 V 200~400 V
Electrode 3×φ780 mm 3×φ1000 mm 2×φ900 mm
Furnace Diameter φ10.6 m φ13.8 m φ15.2 m
Melting Temp 1650~1750℃ 1700~1800℃ 1750~1850℃
Daily Output 80~100 t slag 180~220 t slag 250~300 t slag
Power Consumption 2,200~2,400 kWh/t 2,100~2,300 kWh/t 1,800~2,100 kWh/t
Electrode Consumption 25~35 kg/t 20~30 kg/t 12~20 kg/t
Operation Rate ≥85% ≥87% ≥88%
Annual Output 30,000 t/year 80,000 t/year 120,000 t/year

IV. Product (Titanium Slag) Specifications


  • Acid-Soluble Titanium Slag:
    • Total TiO₂: 75~80%
    • FeO: ≤5%, CaO+MgO: ≤1.5%
    • For sulfuric acid titanium dioxide

  • High-Titanium Slag (Chlorination Grade):
    • Total TiO₂: ≥90~92%
    • FeO: ≤1.5%, CaO+MgO: ≤0.5%
    • For chloride titanium dioxide & titanium sponge


V. Technical Advantages


  1. High Efficiency: Continuous smelting, auto-control, high operation rate
  2. Energy Saving: Optimized short network, low consumption, DC furnace superior
  3. Environmental Protection: Closed gas recovery, flue gas purification, low emission
  4. High Quality: Uniform composition, low impurity, stable product quality
  5. Large Capacity: Single unit up to 36,000 kVA, annual output 120,000+ tons

VI. Application Scope


  • Smelting ilmenite into high-titanium slag & pig iron
  • Raw material for titanium dioxide (sulfate & chloride route)
  • Raw material for sponge titanium & titanium alloy production
  • Resource utilization of titanium-bearing materials
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