Yellow Phosphorus Smelting Furnace (Phosphorus Production Electric Furnace)

Yellow Phosphorus Smelting Furnace (Phosphorus Production Electric Furnace)

1. Equipment Composition

1.1 Furnace Body System

• Furnace Shell: Made of 16–25mm thick steel plate with stiffening ribs for high rigidity and deformation resistance.
• Furnace Lining: High-alumina bricks/carbon bricks + refractory castable, refractoriness ≥1550℃, with excellent slag corrosion and thermal shock resistance.
• Furnace Roof & Gas Duct: Water-cooled sealed roof with central electrode holes; insulated high-temperature gas duct to prevent condensation and blockage.
• Slag & Iron Tapping: Water-cooled + refractory lining; tapping temperature 1350–1450℃, periodic slag and phosphorus iron removal.

1.2 Electrode System (Core)

• Electrodes: High-purity graphite electrodes, diameter 300–500mm, with good conductivity, high temperature resistance and low consumption.
• Current-conducting Cross Arm: Water-cooled copper alloy, large current capacity, low impedance, stable power supply.
• Electrode Lifting: PLC closed-loop automatic control for precise arc length and temperature regulation.

1.3 Hydraulic Tilting & Tapping Mechanism

• Hydraulic drive, tilting angle 0–45°, smooth operation, easy for slag removal and maintenance.
• Equipped with limit and self-locking devices for safety.

1.4 Electrical Control System

• Phosphorus Furnace Transformer: Capacity 3000–15000kVA, multi-voltage gears (180–450V) for different smelting stages.
• Control Cabinet: PLC + touch screen, integrating temperature control, power regulation, electrode slipping, fault alarm for fully automatic operation.
• Temperature Measurement: Thermocouple + infrared dual measurement, accuracy ±8℃, working temperature 1300–1500℃.

1.5 Auxiliary Systems

• Water Cooling: Forced cooling for shell, roof and cross arm; surface temperature ≤35℃, safe and energy-saving.
• Batching & Feeding: Automatic batching and quantitative feeding for accurate ratio and stable quality.
• Gas Cleaning & Dedusting: Sealed structure + baghouse + tail gas treatment; CO can be recycled, meeting environmental standards.

2. Main Technical Parameters (Standard Models, Customizable)

2.1 Smelting Specifications

• Rated Capacity: 5000kVA / 8000kVA / 12000kVA (daily output 3–10 tons yellow phosphorus)
• Inner Diameter: φ2500–4500mm
• Working Temperature: 1300–1500℃ (peak 1550℃)
• Raw Material: Phosphate rock, silica, coke, moisture＜2%, particle size 5–35mm

2.2 Electrical Parameters

• Transformer Capacity: 3000–15000kVA
• Working Voltage: 180–450V (multi-gear adjustable)
• Rated Current: 8000–25000A
• Electrode Diameter: 300mm / 400mm / 500mm

2.3 Energy Consumption & Efficiency

• Power Consumption per Ton: ≤13000 kWh/t
• Phosphorus Recovery Rate: ≥90%
• Production Cycle: 24-hour continuous operation
• By-products: Slag (8–10t/t P), phosphorus iron, tail gas (CO)

2.4 Operational Parameters

• Tilting Angle: 0–45° (hydraulic)
• Electrode Stroke: 1000–1500mm
• Control Mode: Fully automatic PLC + manual dual mode

3. Core Advantages

1. High Recovery & Low Energy Consumption: Optimized design, recovery ≥90%, industry-leading power consumption, significant cost reduction.
2. Sealed & Eco-friendly, Safe: Fully sealed + tail gas recycling, no leakage, low emission; water cooling + self-locking for high safety.
3. Durable Lining, Easy Maintenance: High-quality refractories, lining life ≥18 months; modular design for quick inspection and less downtime.
4. Precise Temp Control, Stable Quality: Dual measurement + automatic electrode regulation, stable furnace temperature, industrial yellow phosphorus purity ≥99.9%.
5. High Customization & Wide Adaptability: Customized by capacity, ore grade and environmental requirements, suitable for small to large production lines.

4. Application Fields

• Industrial yellow phosphorus production (≥99.9% purity)
• Phosphoric acid, phosphates, pesticides, pharmaceutical intermediates
• Flame retardants, water treatment agents, battery-grade phosphorus compounds
• High-end fine chemical raw materials

5. Models & Services

• Standard Models: 5000kVA / 8000kVA / 12000kVA phosphorus furnace
• Customization: Furnace size, power, automation, environmental accessories
• Turnkey Service: Design, manufacturing, installation & commissioning, training, after-sales support