Continuous Graphitization Furnace: A Production Revolution from Intermi"&"ttent to Continuous

Traditional graphitization furnaces operate intermittently—loading → heating → holding → cooling → unloading, with a cycle typically lasting 15-30 hours, and some large ones even reaching 48 or 72 hours. A significant amount o"&"f time is spent on loading, unloading, and heating/cooling, resulting in a low proportion of effective production time. Continuous graphitization furnaces are changing this situation.

Working Principle

The co"&"re idea of the continuous graphitization furnace is ""material movement, temperature zone stillness"":

• The material (powder or preform) continuously enters the furnace through a conveying mechanism.
• The furnace is divided into mu"&"ltiple temperature zones: preheating zone, heating zone, holding zone, and cooling zone.
• The material continuously passes through each temperature zone at a certain speed, completing the graphitization process.
• The processed product is"&" continuously discharged from the discharge end.

High Capacity: Continuous operation, effective production time is close to 100%, capacity is 3-5 times that of intermittent operation

Low Energy Consumption: No need for repeated heating and cooling, high thermal energy utilization rate

Good Consistency: Each batch of material undergoes the same temperature process, with minimal batch-to-batch diff"&"erences

Less Manpower: High degree of automation, fewer operators required

Challenges

• Sealing Challenges: Maintaining high vacuum or high-purity atmosphere while continuously feedin"&"g and discharging materials presents complex sealing challenges.
• Temperature Zone Control: High requirements for heat insulation and independent temperature control technology in each temperature zone.
• Equipmen"&"t Complexity: High integration of mechanical, electrical, and automation systems, leading to high maintenance requirements.
• High Investment: Equipment investment is significantly higher than that of intermittent systems"&".

Trend: Continuous graphitization furnaces are particularly suitable for the mass production of standardized products such as lithium-ion battery anode mat"&"erials. With the continued growth of the new energy market, continuous graphitization furnaces will become an important development direction for the industry.