What is the typical drying temperature for a drum scraper dryer

The drying temperature of the drum scraper dryer is usually between 50-300 ℃. The specific drying temperature will be affected by various factors:

Material characteristics:

Different materials have different requirements for drying temperature. For example, thermosensitive materials, such as certain drugs, foods, etc., usually need to be dried at lower temperatures, usually around 50-100 ℃, in order to avoid the destruction of their active ingredients or the impact on their quality. For some non heat sensitive materials such as inorganic chemical raw materials, they can withstand higher temperatures, and the drying temperature may be between 150-300 ℃.

Heating medium:

The temperature that can be achieved varies depending on the heating medium used. If steam is used as the heating medium, the corresponding drying temperature is approximately 100-180 ℃ when the steam pressure is between 0.2-0.8MPa. If thermal oil is used as the heating medium, the temperature of the thermal oil can be adjusted within the range of 150-300 ℃, which can bring the surface of the drum to a corresponding high temperature, thereby achieving rapid drying of the material.

Drying process requirements:

When the production process has specific requirements for the drying degree and drying time of the product, it will also affect the choice of drying temperature. For example, materials that require a high degree of drying in a short period of time may require an appropriate increase in drying temperature; For materials with longer drying time and higher requirements for drying uniformity, a relatively low and stable drying temperature may be chosen.