Scrap Steel Preheating System
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Drastic Energy Savings: Reduces electricity consumption by 40-80 kWh per ton of liquid steel.
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Accelerated Production: Shortens tap-to-tap time by 8-15 minutes, significantly increasing daily output.
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Enhanced Safety: Completely eliminates scrap moisture to prevent furnace explosions and splashing.
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Environmental Excellence: Integrated flue gas treatment minimizes VOC and dioxin emissions for green compliance.
1. Product Overview
The Industrial Scrap Steel Preheating System is a high-performance thermal energy recovery solution designed to optimize the efficiency of Electric Arc Furnaces (EAF) and induction furnaces. By utilizing waste heat from flue gas or dedicated high-velocity burners, the system raises the temperature of scrap metal before it is charged into the furnace. This proactive heating phase not only slashes energy costs but also stabilizes the melting process, making it an essential component for modern, sustainable steelmaking facilities looking to maximize ROI and minimize carbon footprints.
2. Detailed Description
This advanced system typically features a heavy-duty vibrating conveyor or a vertical shaft structure integrated with a high-temperature heat exchange chamber. As the scrap moves through the preheating zone, it is subjected to a controlled flow of high-temperature gas, effectively removing moisture and organic contaminants while raising the metal’s internal energy. The system is engineered with high-nickel alloy internal linings and specialized thermal seals to withstand corrosive flue gas and mechanical impact. Automated PLC controls synchronize the scrap feeding speed with the furnace’s melting rate, ensuring a continuous, optimized flow of hot material that reduces thermal shock to the furnace lining and electrode consumption.
3. Why Choose Us
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Proven Economic Returns: Our system delivers a direct reduction in melting energy and electrode wear, typically allowing for full capital investment recovery within 12 to 18 months of operation.
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Robust Mechanical Reliability: Built with impact-resistant reinforced steel and heavy-duty drive components, our preheaters are designed for 24/7 operation in the harshest steel mill environments with minimal maintenance.
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Comprehensive Emission Control: We provide integrated post-combustion and filtration technology to ensure that all gases used in the preheating process meet the strictest international environmental standards for air quality.
4. Specifications & Technical Data
| Technical Parameter | Specification Detail |
| Applicable Furnace Capacity | 20 – 150 Tons |
| Preheating Temperature Range | 300°C – 800°C |
| Electricity Saving Potential | 40 – 80 kWh/t |
| Tap-to-Tap Time Reduction | 8 – 15 Minutes |
| Scrap Feeding Capacity | 10 – 200 t/h |
| Fuel Compatibility (for burners) | Natural Gas, COG, BFG, Diesel |
| Internal Lining Material | High-Temperature Resistant Alloy Steel / Refractory Castable |
| Conveyor Type | Vibrating Horizontal / Continuous Belt / Vertical Shaft |
| Control System | Siemens S7-1500 PLC with HMI Touchscreen |
| VOC/Dioxin Destruction Rate | ≥ 99% (with secondary combustion chamber) |
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