The vacuum spiral dryer adopts an internal hollow blade structure to fully circulate the material inside the box, increase the contact heat energy of the material, and dry the material more evenly without dead corners. The heat transfer uses hollow blades and the wall heat energy of the box, and the material is wrapped and flows by the heat energy, with almost no loss of heat energy. The overall equipment adopts a sealed working mode to prevent dust and odor, no leakage, and uses a later condensation recovery device to recover usable resources and pollutants, thus achieving pollution-free emissions. According to the temperature requirements of the material, different heating media can be used: steam, hot water, and thermal oil. Depending on the material, the feeding method can be one-time or multiple times. After drying, the vacuum is discharged and the discharge is opened through the discharge valve.

The vacuum spiral dryer uses two sets of hollow spiral blades to circulate materials inside the equipment, releasing heat energy to the materials through thermal energy conduction, and achieving drying in a vacuum state. Its structure and working principle determine high thermal efficiency, low energy consumption, high efficiency, small footprint, easy operation, and greatly reduce production costs. Different materials and production processes can be selected according to the characteristics and requirements of the materials, and various auxiliary equipment can be matched to meet customer production needs.

Energy saving: The heating area of the equipment increases, and the thermal energy is fully absorbed by the material, reducing thermal energy loss,

Environmental protection: The equipment operates under vacuum and can be recycled through a condensation recovery device for resource utilization without polluting emissions.

Efficient: Due to the increased heating area of the device, its efficiency is greatly improved compared to conventional drying equipment, thereby saving energy consumption,

Dry material categories: liquid materials, powder materials.

Cannot accept high temperature thermosensitive materials

Easy to oxidize and deteriorate, flammable and explosive materials

Materials for solvent recovery and harmful gas emissions