Oxidizable Material Vacuum Rake Dryer Low Temperature Safe Drying Machine

The vacuum rake dryer is a closed vacuum drying machine for easily oxidized materials. The cylinder is heated by a jacket and a vacuum is created inside the cylinder, while low-speed rake blades rotate continuously to stir and turn the material. After the material is heated, the moisture evaporates and the water vapour is continuously extracted by the vacuum pump to achieve closed vacuum drying.

The oxygen-free vacuum environment and low drying temperature protect easily oxidized and easily deteriorated materials, while continuous blade stirring and closed operation keep the process safe and dust-free.

Note: 1. The amount of moisture evaporation is related to the characteristics of the material and the drying temperature. 2. The parameters are for reference only.

The cylinder is heated by a jacket and a vacuum is created inside. Low-speed rake blades rotate to stir and turn the material continuously, so it is heated evenly and does not stick to the walls. After the material is heated, the moisture evaporates, and the water vapour is continuously extracted by the vacuum pump to achieve closed vacuum drying. Because the process is closed and under negative pressure, solvent can be condensed and recovered and volatile gases do not leak.

1. The cylinder is heated by a jacket and a vacuum is created inside the cylinder.
2. The rake blades rotate at low speed, constantly stirring and turning the material.
3. After the material is heated, the moisture evaporates.
4. The water vapour is continuously extracted by the vacuum pump.
5. The closed vacuum drying process continues, and solvent can be condensed and recovered.

• Low-temperature drying: moisture evaporates at low temperature in the vacuum environment, suitable for heat-sensitive, easily oxidized and easily deteriorated materials.
• Closed negative pressure operation: solvent can be condensed and recovered, safe and explosion-proof, with no dust pollution.
• Jacketed indirect heating: the heat medium does not contact the material, resulting in a pure and impurity-free finished product.
• Continuous stirring and scraping by the blades ensures uniform heating of the material, preventing pastes, slurries and highly viscous materials from clumping and sticking to the walls.
• Wide range of applications: it can process wet powders, filter cakes, slurries and viscous pastes.
• Intermittent closed production: volatile gases do not leak, resulting in good environmental performance.

It is suitable for drying slurry, paste, powder and granular materials; heat-sensitive materials requiring low-temperature drying; easily oxidizable, explosive, highly irritating and highly toxic materials; and materials requiring organic solvent recovery, in the pharmaceutical, food and chemical industries.

• Heat-sensitive materials requiring low-temperature drying.
• Easily oxidizable, explosive, highly irritating and highly toxic materials.
• Slurry, paste, powder and granular materials.
• Materials requiring organic solvent recovery.