The indirect type hot blast air furnace heats clean air through heat exchange from combustion-generated flue gas. This system is primarily used for drying materials that cannot tolerate pollution or heat-sensitive materials requiring low-temperature hot air. It represents a highly efficient, energy-saving solution for industrial drying applications.

This universal air heater system is designed to work with drying equipment for various materials. It is widely used in heating and drying applications for:

• Agricultural products: feed, grain, seed, fruit, dehydrated vegetables
• Food processing: mushroom, agaric, tremella, tea leaf, tobacco
• Industrial materials: pharmaceuticals, chemical raw materials, industrial products
• Facility heating and warehouse dehumidification systems

• Produces clean, pollution-free hot air for sensitive applications
• Rapid temperature rise with stable hot air temperature control
• Long operational lifespan with minimal maintenance requirements
• Advanced reflux heat exchange design: flue gas flows outside pipes while air flows inside for enhanced heat transfer
• High heat efficiency exceeding 75% with temperature stability of ±5℃
• Flexible fuel options: fuel oil, gas, or pulverized coal
• Simple operation with excellent safety features