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Working principle of double cone rotary vacuum drying oven
Date: 2025-02-18Read: 6
The double cone rotary vacuum drying oven is a double cone rotary tank body. In the vacuum state inside the tank, steam or hot water is introduced into the jacket for heating. The heat comes into contact with the wet material through the inner wall of the tank body. The water vapor evaporated by the wet material after absorbing heat is pumped out through the vacuum exhaust pipe by the vacuum pump. Due to the vacuum state inside the tank and the continuous flipping of the material inside and outside by the rotation of the tank, the drying speed of the material is accelerated, the drying efficiency is improved, and the goal of uniform drying is achieved.
The double cone rotary vacuum drying oven is a new type of dryer that integrates mixing and drying. Combine the condenser, vacuum pump, and dryer to form a vacuum drying device. The design of this machine is advanced. At the same time, due to the rotation of the container itself, the material also rotates but no material accumulates on the container, resulting in a high heat transfer coefficient and a high drying rate, which not only saves energy.
The working principle of the double cone rotary vacuum drying oven:
1. The double cone rotary vacuum drying oven is a new type of drying machine that integrates mixed drying. Combine the condenser, vacuum pump, and dryer to form a vacuum drying device (if recovery of the container is not required, the condenser can be omitted);
2. Add thermal energy (such as hot water, steam, or thermal oil) into a sealed interlayer, and transfer the heat to the dried material through the inner shell;
3. Under the power drive, the tank slowly rotates, and the materials inside the tank continuously mix, thereby achieving the purpose of strengthening drying;
4. The material is in a vacuum state, and the decrease in vapor pressure causes the water (solvent) on the surface of the material to reach saturation and evaporate, and is promptly extracted and recovered by a vacuum pump. The moisture (solvent) inside the material continuously permeates, evaporates, and is discharged from the surface, and these three processes are carried out continuously, achieving the drying purpose of the material in a very short time;
5. This machine has advanced design, simple internal structure, easy cleaning, and can discharge all materials, making it easy to operate.
6. Can reduce labor intensity and improve working environment. At the same time, due to the rotation of the container itself and the absence of material accumulation on the wall, the heat transfer coefficient is high, the drying rate is high, which not only saves energy but also ensures uniform and sufficient drying of the material, resulting in good quality. It can be widely used for drying materials in industries such as pharmaceuticals, chemicals, food, dyes, etc. Meets the requirements of the Good Manufacturing Practice (GMP) for drug management.
