Energy Saving Vacuum Tray Dryer Construction with Minimal Heat Loss Insulation

The energy saving vacuum tray dryer places wet material in trays and dries it in a negative pressure vacuum environment created by a vacuum pump, while a heating medium is circulated between the jacket and the pipes for heat conduction drying. The evaporated moisture is removed by the vacuum pump.

The construction is insulated so that heat loss is minimal and the heat supplied by the medium is used efficiently. Combined with low-temperature drying under vacuum, this keeps energy use low while the boiling point of the material is lowered for even drying.

Note: The above data is for reference only. If you have any special requirements, our factory can provide design and consultation services.

Wet material is loaded into trays inside the sealed chamber and the vacuum pump lowers the internal pressure, so the boiling point of the material falls and drying proceeds at low temperature. A heating medium circulated between the jacket and the pipes supplies heat by conduction, and insulated construction holds that heat in, so less energy is lost to the surroundings. The evaporated moisture is then removed by the vacuum pump.

1. Wet material is placed into trays inside the drying chamber.
2. The vacuum pump creates a negative pressure vacuum environment.
3. A heating medium is introduced between the jacket and the pipes for heat conduction drying.
4. The moisture evaporated from the material is removed by the vacuum pump.
5. Recovered solvent is condensed and collected through a condenser and a buffer tank.

• Insulated construction keeps heat loss to a minimum.
• Heat conducted through the jacket and internal pipes.
• Low-temperature drying under vacuum reduces energy demand.
• Heat source can be low-pressure steam, thermal oil or circulating hot water.
• Static tray drying preserves the shape of the dried material.
• Sterilization before drying with no impurities introduced, meeting GMP requirements.

It is suitable for low-temperature drying of heat-sensitive materials and is widely used in the pharmaceutical, chemical, food and electronics industries, especially where drying runs continuously and running cost matters.

• Continuous drying where running cost matters.
• Pharmaceutical, chemical, food and electronics industries.
• Heat-sensitive materials that require low-temperature drying.