Description
Submerged Arc Furnace for Industrial Silicon
World-Leading Silicon Smelting Technology by HANI Metallurgy
Advancing Silicon Metallurgy at Scale
The Submerged Arc Furnace for Industrial Silicon is the ultimate silicon smelting equipment, designed to produce high-purity silicon metal for the global aluminum, chemical, and solar industries. By utilizing the submerged arc principle—where the electrode tips are deeply embedded in the furnace charge—the SAF industrial silicon unit ensures a stable reduction environment at temperatures exceeding 2000°C. At HANI, we have redefined silicon smelting by developing the world’s largest DC industrial silicon systems, delivering up to 50,000 KVA of power with unparalleled efficiency. Our Submerged Arc Furnace for Industrial Silicon is engineered to handle the complexities of slag-free smelting, ensuring a high-yield output of premium silicon grades while meeting the most stringent environmental standards.
HANI’s Submerged Arc Furnace for Industrial Silicon technology integrates advanced material science with intelligent electrical control. The SAF industrial silicon process relies on the precise balance of high-purity quartz and carbonaceous reductants. As a global leader in silicon smelting, HANI provides turnkey solutions that include automated electrode extension, AI-driven refining, and real-time furnace interior monitoring via high-temperature cameras. Our Submerged Arc Furnace for Industrial Silicon has set new industry standards for energy saving, environmental protection, and production scale, making it the preferred choice for green metallurgical transformation.
HANI SAF Industrial Silicon: Technical Specifications
| Parameter | Unit | HANI-SAF-Si33.0 | HANI-SAF-Si45.0 (DC) | HANI-SAF-Si50.0 (DC) |
|---|---|---|---|---|
| Transformer Capacity | MVA | 33.0 | 45.0 | 50.0 |
| Smelting Technology | – | AC Submerged Arc | DC High-Power Submerged Arc | |
| Specific Power Consumption | kWh/t | 11500-12500 | 10500-11500 | 10000-11000 |
| Silicon Recovery Efficiency | % | ≥90% | ≥92% | ≥93% |
Pioneering Large-Scale DC Silicon Smelting
HANI’s Submerged Arc Furnace for Industrial Silicon technology has achieved a breakthrough in the development of ultra-large DC systems. In silicon smelting, DC technology significantly reduces the skin effect and proximity effect seen in AC furnaces, leading to a much higher power factor and more uniform heat distribution in the SAF industrial silicon hearth. This results in larger production scales and lower environmental impact.
Our silicon smelting systems are also equipped with a patented “Rotary Shell” technology. In a Submerged Arc Furnace for Industrial Silicon, the rotation of the furnace shell prevents the sintering of materials and promotes the smooth flow of the intermediate SiO gas. This is a critical factor in achieving high recovery rates in the SAF industrial silicon process. Coupled with HANI’s AI-driven refining system, our furnaces ensure the production of consistently high-grade silicon metal.
Production Reference Values for SAF Industrial Silicon
For the successful operation of a Submerged Arc Furnace for Industrial Silicon, HANI provides the following operational benchmarks:
- Specific Consumption: 10500-11500 kWh per ton of silicon produced in our high-power DC SAF industrial silicon units.
- Electrode Consumption: 80-120 kg per ton of silicon depending on the electrode quality and silicon smelting parameters.
- Quartz Purity: Requires SiO2 ≥ 99.5% with low Al and Fe impurities for premium Submerged Arc Furnace for Industrial Silicon output.
Professional FAQ on SAF Silicon Smelting
Q1: What are the advantages of DC technology in a Submerged Arc Furnace for Industrial Silicon?
A: DC silicon smelting provides a more stable arc, higher energy efficiency (approx. 10-15% saving), and lower electrode consumption compared to traditional AC SAF industrial silicon systems.
Q2: How does HANI ensure the high purity of the industrial silicon product?
A: Through AI-driven batching control and real-time refining technology in our Submerged Arc Furnace for Industrial Silicon, we ensure that impurities like Fe and Al are kept within very tight limits during silicon smelting.
Q3: What environmental protections are included in your silicon smelting equipment?
A: Our SAF industrial silicon units are equipped with high-capacity fume collection hoods and advanced baghouse filtration systems to ensure zero-particulate emissions from the Submerged Arc Furnace for Industrial Silicon.
Lead the Green Revolution in Silicon Production
The Submerged Arc Furnace for Industrial Silicon is the future of sustainable metallurgy. Partner with HANI for a world-class silicon smelting solution and engineering support.
