{"id":2146,"date":"2026-07-03T06:20:23","date_gmt":"2026-07-03T06:20:23","guid":{"rendered":"https:\/\/hanmetallurgy.com\/?post_type=product&p=2146"},"modified":"2026-07-03T06:20:23","modified_gmt":"2026-07-03T06:20:23","slug":"industrial-silicon-smelting-furnace","status":"publish","type":"product","link":"https:\/\/luzixinzuonew.han-light.com\/index.php\/product\/industrial-silicon-smelting-furnace\/","title":{"rendered":"Industrial Silicon Smelting Furnace"},"content":{"rendered":"
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Industrial Silicon Smelting Furnace<\/h1>\n
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High-Purity Silicon Metal Production by HANI Metallurgy<\/p>\n<\/div>\n

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Pioneering Global Silicon Metal Production<\/h2>\n

The Industrial Silicon Smelting Furnace<\/strong> is a cornerstone of the modern high-tech industry, providing the silicon metal required for semiconductors, aluminum alloys, and silicones. As a specialized Industrial Silicon Furnace<\/strong>, it employs the carbothermic reduction of high-purity quartz with carbonaceous reductants such as wood chips, coal, and coke. At HANI<\/strong>, we have revolutionized silicon metal smelting<\/strong> by developing large-scale DC and AC furnace systems, including our flagship 50,000 KVA DC industrial silicon system\u2014the first of its kind globally. Our SAF for industrial silicon<\/strong> is engineered for maximum energy efficiency, large-scale production, and environmental sustainability, setting a new benchmark for the industry.<\/p>\n

HANI’s Industrial Silicon Smelting Furnace<\/strong> utilizes a semi-enclosed design and efficient slag-free submerged arc technology. Unlike traditional ferroalloy furnaces, the Industrial Silicon Furnace<\/strong> operates at extremely high temperatures (over 2000\u00b0C) to drive the reduction of SiO2. This requires our silicon metal smelting<\/strong> units to have superior refractory designs and advanced cooling systems. By integrating AI-driven refining technology and high-temperature furnace cameras, HANI\u2019s SAF for industrial silicon<\/strong> ensures a consistent output of high-grade silicon metal (e.g., 553, 441, or 3303 grades) while minimizing specific power consumption.<\/p>\n<\/div>\n

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Technical Parameters of HANI Industrial Silicon Furnace<\/h2>\n
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Model Feature<\/th>\nUnit<\/th>\nHANI-Si25.5<\/th>\nHANI-Si33.0<\/th>\nHANI-Si45.0 (DC)<\/th>\nHANI-Si50.0 (DC)<\/th>\n<\/tr>\n<\/thead>\n
Transformer Capacity<\/td>\nMVA<\/td>\n25.5<\/td>\n33.0<\/td>\n45.0<\/td>\n50.0<\/td>\n<\/tr>\n
Electrode Diameter<\/td>\nmm<\/td>\n1100<\/td>\n1250<\/td>\n1400<\/td>\n1500<\/td>\n<\/tr>\n
Power Consumption<\/td>\nkWh\/t<\/td>\n12500-13500<\/td>\n12000-13000<\/td>\n11000-12000<\/td>\n10500-11500<\/td>\n<\/tr>\n
Silicon Recovery<\/td>\n%<\/td>\n\u226588%<\/td>\n\u226590%<\/td>\n\u226592%<\/td>\n\u226593%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

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Chemical Process of Industrial Silicon Smelting<\/h2>\n

The heart of the Industrial Silicon Smelting Furnace<\/strong> is the reduction of silicon dioxide (SiO2) with carbon (C). This process in the Industrial Silicon Furnace<\/strong> is highly energy-intensive and involves complex intermediate gas-phase reactions. HANI\u2019s silicon metal smelting<\/strong> technology maximizes the utilization of the intermediate SiO gas by optimizing the material layer structure and gas flow within the SAF for industrial silicon<\/strong>.<\/p>\n

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Key Chemical Reactions:<\/p>\n

1. SiO2<\/sub> + 3C \u2192 SiC + 2CO (Silicon Carbide Formation)
\n2. SiO2<\/sub> + C \u2192 SiO + CO (Silicon Monoxide Gas)
\n3. SiC + SiO \u2192 2Si + CO (Final Silicon Formation)
\nTotal: SiO2<\/sub> + 2C \u2192 Si + 2CO<\/p>\n<\/div>\n

To achieve high silicon purity in the Industrial Silicon Smelting Furnace<\/strong>, the selection of carbon reductants is critical. HANI’s silicon metal smelting<\/strong> process uses wood chips to improve the porosity of the charge, ensuring that the SiO gas can be effectively captured and reduced to silicon. Our SAF for industrial silicon<\/strong> is also equipped with rotating shell technology, which prevents the formation of “scabs” and improves the uniformity of the smelting zone.<\/p>\n<\/div>\n

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Key Advantages of HANI Industrial Silicon Technology<\/h2>\n