{"id":2179,"date":"2026-07-03T09:45:54","date_gmt":"2026-07-03T09:45:54","guid":{"rendered":"https:\/\/hanmetallurgy.com\/?post_type=product&p=2179"},"modified":"2026-07-03T09:45:54","modified_gmt":"2026-07-03T09:45:54","slug":"submerged-arc-furnace-carbon-oxygen-lance","status":"publish","type":"product","link":"https:\/\/luzixinzuonew.han-light.com\/index.php\/product\/submerged-arc-furnace-carbon-oxygen-lance\/","title":{"rendered":"Submerged Arc Furnace Carbon-Oxygen Lance"},"content":{"rendered":"
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Submerged Arc Furnace Carbon-Oxygen Lance<\/h1>\n
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High-Efficiency Chemical Energy Input by HANI Metallurgy<\/p>\n<\/div>\n

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Enhancing Smelting Kinetics with HANI Carbon-Oxygen Lances<\/h2>\n

The Submerged Arc Furnace Carbon-Oxygen Lance<\/strong> is a critical technological tool designed to introduce chemical energy and reagents directly into the furnace hearth. As a high-performance SAF lance<\/strong>, it facilitates the injection of oxygen for decarburization<\/strong> and carbon for slag foaming and reduction. At HANI<\/strong>, we have engineered world-class injection lance<\/strong> solutions that utilize supersonic nozzle technology and advanced water-cooling to survive the extreme temperatures of the electric arc zone. Our Submerged Arc Furnace Carbon-Oxygen Lance<\/strong> is designed to optimize the smelting kinetics, reduce electricity consumption, and improve alloy recovery rates by promoting a vigorous metallurgical reaction within the molten pool.<\/p>\n

HANI’s Submerged Arc Furnace Carbon-Oxygen Lance<\/strong> is manufactured using high-conductivity forged copper tips and heavy-duty stainless steel shafts. Whether for high-carbon ferrochrome or stainless steel refining, the SAF lance<\/strong> must provide a stable and controllable jet of gas or solids. Our injection lance<\/strong> units feature a specialized multi-hole nozzle design that ensures a broad reaction area and prevents localized refractory erosion. By utilizing HANI\u2019s chemical energy technology, producers can achieve up to 15% lower tap-to-tap times and a significantly more uniform alloy chemistry. As a global leader in furnace auxiliary equipment, HANI provides Submerged Arc Furnace Carbon-Oxygen Lance<\/strong> solutions that are essential for modern high-intensity decarburization<\/strong> and smelting operations.<\/p>\n<\/div>\n

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Technical Parameters of HANI Carbon-Oxygen Lances<\/h2>\n
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Technical Metric<\/th>\nUnit<\/th>\nHANI-COL-SUPER<\/th>\nHANI-COL-STD<\/th>\nHANI-COL-REFINING<\/th>\n<\/tr>\n<\/thead>\n
Oxygen Flow Rate<\/td>\nNm\u00b3\/h<\/td>\n2000-4000<\/td>\n1000-2500<\/td>\n500-1500<\/td>\n<\/tr>\n
Carbon Injection Rate<\/td>\nkg\/min<\/td>\n20-50<\/td>\n10-30<\/td>\nN\/A (O2 Only)<\/td>\n<\/tr>\n
Mach Number (supersonic)<\/td>\n–<\/td>\n2.0-2.5<\/td>\n1.5-2.0<\/td>\nSubsonic<\/td>\n<\/tr>\n
Cooling Water Req.<\/td>\nm\u00b3\/h<\/td>\n\u226540<\/td>\n\u226530<\/td>\n\u226525<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

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The Physics of Supersonic Gas Injection<\/h2>\n

The performance of a Submerged Arc Furnace Carbon-Oxygen Lance<\/strong> is determined by its jet penetration depth and mass transfer efficiency. In an SAF lance<\/strong>, the oxygen must be delivered at supersonic velocities to penetrate the slag layer and reach the molten metal interface for effective decarburization<\/strong>. HANI\u2019s injection lance<\/strong> utilizes a Convergent-Divergent (De Laval) nozzle design that converts high-pressure potential energy into kinetic energy, ensuring that the oxygen jet does not dissipate before reaching the reaction zone.<\/p>\n

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Smelting Kinetics Principles:<\/p>\n

1. Supersonic Impact: High Mach number jets ensure deep decarburization<\/strong> within the metal pool.
\n2. Slag Foaming: Carbon injection promotes CO gas bubbles, increasing slag volume and electrical resistance.
\n3. Exothermic Balance: Utilizing chemical energy to reduce the electrical load of the Submerged Arc Furnace Carbon-Oxygen Lance<\/strong>.<\/p>\n<\/div>\n

Scientific facts show that chemical energy from an SAF lance<\/strong> can provide up to 30% of the total thermal requirement in high-intensity smelting. HANI’s Submerged Arc Furnace Carbon-Oxygen Lance<\/strong> ensures that your decarburization<\/strong> process is optimized for maximum speed. Our injection lance<\/strong> solutions also include automatic slag-line detection and robotic positioning to ensure that the lance is always at the optimal height for oxygen delivery and refractory protection.<\/p>\n<\/div>\n

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Key Advantages of HANI Injection Technology<\/h2>\n