Direct Oil/Gas Fired Hot Air Furnace is mainly composed of the burner, furnace body and control system. The burner adopts imported integrated burner. Fuel and air enter the furnace body at a certain ratio and burn completely inside. Ambient air passes through the furnace jacket and mixes with high-temperature flue gas to obtain clean flue gas at required process temperature. Single unit heat supply capacity: 50-200x104 Kcal/h. Heat supply temperature ≤1000°C.
The indirect fired hot air furnace is based on direct fired furnace with added plate heat exchanger. High-temperature flue gas exchanges heat with high purity air to obtain high-cleanliness hot air. After heat exchange, flue gas is discharged by induced draft fan while ambient air is sent into heat exchanger by forced draft fan. Heat supply temperature range: 50~450°C.
|
Type |
Direct type hot air furnace |
Indirect hot air furnace |
|
Working method |
Burning fuel directly and form clean hot air, and the hot air is used directly in drying or baking room. |
Burning fuel to get ht air, and the hot air is used in heat exchanger to heat air. |
|
Fuel |
Heavy oil, light oil, coal gas, natural as, etc. |
Heavy oil, light oil, coal gas, natural as, etc. |
