Yellow Phosphorus Smelting Furnace (Phosphorus Production Electric
Furnace)High Efficiency & Energy Saving · High Phosphorus Recovery ·
Sealed & Eco-friendly · Stable Mass Production The yellow phosphorus smelting furnace, also known as phosphorus production electric furnace, is the core equipment for thermal-process yellow phosphorus
production. It adopts a three-phase sealed arc furnace structure, in which phosphate rock, silica and coke undergo
reduction reaction at 1300–1500℃ to produce phosphorus vapor, which
is then condensed and refined into industrial yellow phosphorus. It
is widely used in phosphorus chemical industry, fine chemicals, pesticides, flame
retardants, and lithium battery raw materials. 1. Equipment Composition1.1 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- High Recovery & Low Energy Consumption: Optimized design, recovery ≥90%, industry-leading power
consumption, significant cost reduction.
- Sealed & Eco-friendly, Safe: Fully sealed + tail gas recycling, no leakage, low emission;
water cooling + self-locking for high safety.
- Durable Lining, Easy Maintenance: High-quality refractories, lining life ≥18 months; modular design
for quick inspection and less downtime.
- Precise Temp Control, Stable Quality: Dual measurement + automatic electrode regulation, stable furnace
temperature, industrial yellow phosphorus purity ≥99.9%.
- 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
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