Chemical Industry
Enables heat exchange and waste heat recovery between process gas and air, cutting energy use.
View DetailsIndirect Heating Hot Air Furnace
Fuel burns fully in the furnace; clean air is heated in two stages via the external annular channel and plate heat exchanger, delivering pollution-free hot air
Indirect heat exchange isolates hot air from flue gas, delivering clean hot air for drying and heating of materials.
Chemical Industry
Pharmaceutical
CO Furnace Support
Food Industry
Indirect Heating Hot Air Furnace
The indirect heating hot air furnace mainly consists of a furnace chamber and a high-efficiency heat exchanger. Fuel burns fully in the chamber; clean air is heated in the annular channel outside the chamber, which serves directly as a radiant heat transfer body, increasing heat transfer intensity while reducing equipment size. After exchanging heat in the furnace, the hot flue gas passes through a high-efficiency plate heat exchanger to heat fresh cold air, and the heated clean air enters the process system, suitable for applications requiring pollution-free hot air.
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- Clean hot air
- Pollution-free indirect exchange
- Stable controllable temperature
- Wide application
Features
Key Features
Clean hot air output for drying and heating processes requiring pollution-free hot air
Clean & Pollution-Free
Flue gas is fully isolated from hot air, preventing combustion gas contamination.
High Efficiency
High-efficiency plate heat exchanger lowers exhaust temperature to 60℃ with ~95% thermal efficiency.
Precise Control
Air outlet temperature can be controlled within ±2℃.
High-Temperature Output
The gas is first heated in the high-efficiency plate heat exchanger, then enters the external air duct around the furnace to absorb the intense radiant heat of the flue gas in the chamber, reaching up to 650℃.
Applications
Application Areas
The indirect heating hot air furnace serves chemical, pharmaceutical, CO support and food industries
Pharmaceutical
Delivers hygienic clean hot air for powder drying and fluidized bed heating.
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CO Furnace Support
Paired with catalytic oxidation units (CO) to recover combustion heat for process gas heating.
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Food Industry
Clean, odor-free hot air for food drying and baking with stable temperature control.
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