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High-Temperature Depletion · Cu-Fe Enrichment · Hot Slag Direct Feed · Low Energy & Eco-Friendly · Intelligent Operation
The copper slag treatment electric furnace (also known as copper slag depletion arc furnace / copper slag reduction furnace) is the core thermal equipment for copper smelting slag resource utilization, specifically designed for flash furnace slag, converter slag, and refining slag. Through high-temperature melting, reduction, and clarification at 1250–1500℃, valuable metals such as copper, iron, zinc, gold, and silver in the slag are efficiently enriched and recovered. The tailings are directly granulated for building materials, realizing zero solid waste discharge and high-value metal utilization.
Ideal for: Copper smelters, non-ferrous slag processing, hazardous waste recycling, secondary metals and more.
1. Equipment Composition (Furnace Body + Auxiliary Systems)
1.1 Furnace Body (Core)
Furnace Type: Three-phase sealed arc furnace / circular/rectangular depletion furnace; direct hot slag feed for significant energy savings.
Shell: 16–30mm thick steel plate with stiffeners for high rigidity and deformation resistance.
Lining: High-alumina bricks + carbon bricks + refractory castable, refractoriness ≥1550℃, excellent slag corrosion and thermal shock resistance, service life ≥18 months.
Roof: Fully sealed water-cooled roof with central electrode holes + temperature/feeding ports to prevent flue gas leakage and meet environmental standards.
Electrodes: High-purity graphite electrodes, φ350–600mm, good conductivity, high temperature resistance, low consumption.
Cross Arm: Water-cooled copper alloy, high current capacity, low impedance, stable power supply.
Lifting: PLC fully automatic closed-loop control for precise arc length and temperature regulation, fast response, small fluctuation.
1.3 Power Supply & Electrical System
Transformer: 4000–25000kVA, multi-voltage gears (200–500V) for melting/reduction/clarification stages.
Rated Current: 10000–40000A, low short-network impedance, high thermal efficiency.
Control Cabinet: PLC + touch screen, integrating temperature control, power regulation, electrode slipping, fault alarm, data traceability, fully automatic operation.
1.4 Hot Slag Feeding / Pretreatment (Optional)
Hot Slag Launder: 30–45° inclination, corundum ceramic lining; 1200–1400℃ hot slag direct feed eliminates cold slag reheating, saves 60%+ power.
Control Mode: Fully automatic PLC + manual dual mode
2.4 Tailings Indicators
Lean Slag Cu Content: ≤0.3%
Tailings Utilization Rate: 100% (water-quenched for building aggregates/glass-ceramics)
3. Core Advantages
Hot Slag Direct Feed, Extreme Energy Saving: 1200–1400℃ hot slag fed directly, eliminating cold slag reheating, 60%+ power savings, low operating cost.
Durable Lining, Easy Maintenance: High-quality refractories + optimized design, lining life ≥18 months; modular structure, fast inspection, less downtime.
High Customization & Wide Adaptability: Customized by slag composition, capacity and environmental requirements, suitable for small to large copper smelting lines.
4. Application Fields
Copper Smelters: Depletion of flash furnace, converter and refining slag
Non-Ferrous Metallurgy: Valuable metal enrichment from lead-zinc, nickel and tin slag
Hazardous Waste Disposal: Reduction, harmless treatment and recycling of industrial solid waste
Building Materials: Water-quenched tailings for aggregates, glass-ceramics and road base materials
5. Models & Services
Standard Models: 15t/h / 30t/h / 50t/h / 80t/h Copper Slag Treatment Electric Furnace
Shaanxi Chengda Industrial Furnace Manufacturing Co., Ltd. is a high-tech enterprise specialized in the research, design, and manufacturing of various industrial furnaces, including AC and DC steelmaking electric arc furnaces, ladle refining furnaces, ferroalloy ore thermal furnaces, ferroall... Shaanxi Chengda Industrial Furnace Manufacturing Co., Ltd. is a high-tech enterprise specialized in the research, design, and manufacturing of various industrial furnaces, including AC and DC steelmaking electric arc furnaces, ladle refining furnaces, ferroalloy ore thermal furnaces, ferroall...
