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  • Shaanxi CHENGDA Industry Furnace MAKE Co., Ltd.
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    Congratulazioni calde alla Shaanxi Chengda Industrial Furnace Manufacturing Company in Corea del Sud.Contea di North Chungcheong installazione di attrezzature per il forno di fusione dei metalli preziosi e produzione attenta e messa in servizio rigorosa, in attesa del futuro in più campi per raggiungere una cooperazione reciprocamente vantaggiosa e vantaggiosa!
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Reduction Iron Electric Furnace

  • Reduction Iron Electric Furnace
Luogo di origine Cina
Marca Shaanxi Chengda
Certificazione ISO 9001
Numero di modello Negoziare in base alla capacità di elaborazione delle apparecchiature
Quantità di ordine minimo 1 unità
Prezzo The price will be negotiated based on the technical requirements and supply scope of Party A
Imballaggi particolari Discutere in base ai requisiti specifici della Parte A
Tempi di consegna 2 mesi
Termini di pagamento L/C,T/T,Western Union
Capacità di alimentazione Completare la catena di fornitura di produzione, fornire in tempo e soddisfare gli standard di quali
Dettagli
Evidenziare

electric reduction iron furnace

,

ferroalloy smelting furnace

,

industrial electric iron furnace
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Descrizione di prodotto

Reduction Iron Electric Furnace


Equipment Introduction & Technical Parameters


Reduction Iron Electric Furnace (also known as Direct Reduction Iron Electric Furnace, Smelting Reduction Furnace, Submerged Arc Reduction Furnace) is a key metallurgical equipment that uses electric energy as the heat source to reduce iron ore (or iron concentrate, pellets) into metallic iron (Direct Reduced Iron DRI / Sponge Iron or molten pig iron) at high temperatures.

Different from traditional blast furnaces, it does not require coke and mainly relies on carbonaceous reductants (coal/coke) and electric heat. It is widely used in electric furnace steelmaking, precision casting, etc.


1. Equipment Classification & Structure


1.1 Main Types


  • Submerged Arc Reduction Furnace (Mineral Heat Furnace): The most mainstream type. Electrodes are buried in charge, heated by electric arc + resistance heat, closed/semi-closed, for large-scale continuous production.
  • Smelting Reduction Furnace (e.g., SRV Furnace): Integrates prereduction and final reduction, directly producing liquid hot metal with high capacity.
  • Shaft Furnace Type Reduction Electric Furnace: Gas-based + electric heating, producing solid sponge iron (DRI).

1.2 Main Components (Submerged Arc Type)


  1. Power Supply System

    • Furnace transformer (low voltage, high current, on-load voltage regulation)
    • Short network, high/low voltage cabinet, reactive power compensation

  2. Electrode System

    • Soderberg / graphite electrode, electrode holder, lifting & slipping device

  3. Furnace Body System

    • Furnace shell (steel plate), furnace lining (carbon/magnesia refractory)
    • Tap hole & slag hole

  4. Auxiliary Systems

    • Water cooling system
    • Feeding system
    • Flue gas purification & waste heat recovery



2. Working Principle


  1. Heat Source: Electric arc (3000–6000°C) + resistance heat in burden.
  2. Reduction Reactions:
  3. Process: Preheating → high-temperature reduction → slag-iron separation → tapping.


3. Typical Technical Parameters


3.1 Electrical Parameters



Parameter Range Description
Transformer Capacity 6,300 – 75,000 kVA Higher capacity = higher output
Secondary Voltage 80 – 290 V Low voltage, high current
Secondary Current 20,000 – 80,000 A Phase current
Power Factor ≥ 0.9 With compensation

3.2 Furnace & Electrode Parameters (33,000 kVA example)


  • Furnace shell: round, OD 10–12 m, height 3.5–5.0 m
  • Furnace chamber: diameter 7–9 m, depth 2.5–3.5 m
  • Electrodes: 3 pieces, triangular arrangement, Φ1.2–1.5 m
  • Electrode circle diameter: 4.0–5.5 m
  • Lining life: 3–7 years

3.3 Capacity & Consumption


  • Daily output: 200–800 t/d
  • Annual capacity: 60,000 – 250,000 t/y
  • Power consumption: 2,400 – 3,800 kWh/t DRI
  • Reductant: 450 – 650 kg/t
  • Flux (lime/dolomite): 150 – 300 kg/t


4. Features & Advantages


  • Flexible raw materials: Uses ore, pellets, coal; no coke required.
  • High-quality product: Low S/P, high purity, ideal for EAF steelmaking.
  • Short process, low pollution: No coking or sintering, lower CO₂ emissions.
  • Stable control: Precise electric heating, stable temperature & atmosphere.
  • Wide capacity range: From small (6,300 kVA) to large (75,000 kVA).
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