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Syed Rashid Ahmed ButtShaanxi Chengda Industrial Furnace Co., Ltd. completed the commissioning of electric arc furnace, the workers carefully cooperated with Chengda engineers to learn and operate the equipment, showing the deep friendship and excellent cooperation between the people of China and Pakistan. -
AboubacarAfter more than 1 month of intense production and debugging, 2 sets of heat exchange flue gas settling chamber equipment has been successfully put into operation ~ All the personnel involved in the project have worked hard! ~ -
Ji-hwan【 Warm congratulations 】 Shaanxi Chengda Industrial Furnace Manufacturing Company in South Korea, North Chungcheong County precious metal smelting furnace equipment installation and careful manufacturing and strict commissioning, looking forward to the future in more fields to achieve mutually beneficial win-win cooperation!
Contact Person :
Du
Phone Number :
13991381852
Reduction Iron Electric Furnace
| 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
| Highlight | electric reduction iron furnace,ferroalloy smelting furnace,industrial electric iron furnace |
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Product Description
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)
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Power Supply System
- Furnace transformer (low voltage, high current, on-load voltage regulation)
- Short network, high/low voltage cabinet, reactive power compensation
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Electrode System
- Soderberg / graphite electrode, electrode holder, lifting & slipping device
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Furnace Body System
- Furnace shell (steel plate), furnace lining (carbon/magnesia refractory)
- Tap hole & slag hole
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Auxiliary Systems
- Water cooling system
- Feeding system
- Flue gas purification & waste heat recovery
2. Working Principle
- Heat Source: Electric arc (3000–6000°C) + resistance heat in burden.
- Reduction Reactions:
- 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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