PAN-Based (Polyacrylonitrile-Based) Carbon Felt Tunnel Furnace
Category：Tunnel Oven Production Line
Introduction
The PAN-based (Polyacrylonitrile-based) carbon felt tunnel furnace is a high-end industrial thermal processing equipment specially designed for continuous high-temperature carbonization and graphitization treatment of PAN-based precursor fibers, pre-oxidized fibers, or carbon fiber felts.The equipment adopts a tunnel-type continuous production structure, equipped with a precise temperature control system and strict atmosphere protection system. It enables large-scale, automated, and high-quality production of carbon felt materials.
Applications
Material Carbonization:
Used for high-temperature treatment of pre-oxidized PAN-based fiber felts under an inert atmosphere to remove pyrolysis by-products.
Material Graphitization:
Used for rearranging carbon atom structures under ultra-high-temperature conditions, significantly improving the electrical conductivity, thermal conductivity, and corrosion resistance of carbon felts.
Thermal Field Insulation Material Production:
Used for manufacturing high-performance, long-life thermal insulation felts required for single crystal silicon growth furnaces and vacuum metallurgical furnaces.
New Energy Electrode Manufacturing:
Used for producing carbon felt electrode materials required for flow batteries and fuel cells.
Parameters
| Parameter Item | Technical Specification |
|---|---|
| Rated Temperature | 1000℃ – 1600℃ (Carbonization Furnace); 2000℃ – 2800℃ (Graphitization Furnace) |
| Working Atmosphere | High-purity argon gas (Ar) or nitrogen gas (N₂), with micro-positive pressure control |
| Heating Elements | High-purity graphite rods or graphite plates |
| Temperature Control Accuracy | ±1℃ |
| Furnace Temperature Uniformity | ≤±5℃ |
| Operating Speed | Variable frequency speed regulation, continuously adjustable |
| Conveying Method | Roller rod conveying or mesh belt conveying |
Features
Continuous Production:
The tunnel-type structure enables continuous feeding and discharging, providing high production efficiency.
Precise Zoned Temperature Control:
Multiple temperature zones are independently controlled to perfectly match the process heating curve requirements of PAN-based materials.
Sealing and Atmosphere Protection:
Advanced furnace inlet and outlet dynamic sealing technology reduces gas consumption and effectively prevents product oxidation.
Energy Saving and Environmental Protection:
Uses high-quality graphite felt composite insulation materials to minimize heat loss and is equipped with a complete exhaust gas cracking and smoke discharge system.
Intelligent Control:
PLC fully automatic control enables real-time data recording and provides automatic alarms for over-temperature, gas interruption, and water supply failure.
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