An indirect heating tube bundle dryer is an industrial equipment used for the purpose of drying materials without direct contact between the material being dried and the heat source. This method of drying is particularly useful when you need to avoid contamination from combustion products or when the material being dried is sensitive to direct heat application.

n an indirect heating system, the heat is transferred through the walls of the tubes where the material to be dried is contained. The tubes are typically arranged in a bundle and surrounded by a hot fluid (like thermal oil, steam, or hot gases) which circulates around them. The material moves through the tubes, either by gravity in a vertical setup or by mechanical conveyance in a horizontal setup, coming into contact with the heated tube walls. By controlling the temperature and flow rate of the hot fluid, the drying process can be optimized for energy efficiency and effectiveness.

Benefits for Large-Volume Drying

The tube material in a tube bundle dryer can indeed vary based on the process requirements and the nature of the material being dried.