SZG Series Double Cone Rotary Vacuum Dryer: Technical Overview The SZG Series Double Cone Rotary Vacuum Dryer is an advanced industrial drying equipment designed for efficient and uniform drying of heat-sensitive or solvent-laden materials under vacuum conditions. Its unique double-cone rotating structure ensures thorough mixing, gentle handling, and rapid heat transfer, making it ideal for pharmaceuticals, chemicals, food, and other industries requiring precise moisture control. Design and Working Principle The dryer consists of a double-cone-shaped vessel mounted on a rotating frame, which tilts at an angle to facilitate material movement. The vessel rotates continuously, ensuring consistent tumbling of the product for uniform exposure to heat. A vacuum system lowers the internal pressure, reducing the boiling point of solvents and enabling low-temperature drying—critical for heat-labile substances. Heating is typically provided by a jacket surrounding the vessel, using steam, hot water, or thermal oil. The vacuum system removes evaporated moisture or solvents, which are then condensed and collected, ensuring solvent recovery and environmental compliance. Key Features and Advantages 1. Uniform Drying & Mixing – The rotating double-cone design prevents material agglomeration, ensuring even heat distribution and consistent drying. 2. Gentle Processing – Low-temperature operation under vacuum preserves product integrity, avoiding degradation or thermal damage. 3. Solvent Recovery – Integrated condensation systems allow for efficient solvent reclamation, reducing waste and operational costs. 4. Fully Enclosed System – Prevents contamination, complies with GMP standards, and ensures operator safety by minimizing exposure to hazardous vapors. 5. Automation Compatibility – Supports PLC control for precise regulation of temperature, vacuum, and rotation speed, enhancing reproducibility. Applications - Pharmaceuticals: Drying APIs, granules, and powders. - Chemicals: Processing pigments, dyes, and fine chemicals. - Food & Nutraceuticals: Dehydrating heat-sensitive extracts or additives. - Others: Ceramics, catalysts, and polymer resins requiring solvent removal. Conclusion The SZG Series Double Cone Rotary Vacuum Dryer combines efficiency, safety, and versatility, making it a preferred choice for industries demanding high-quality drying with minimal product loss. Its robust design, coupled with vacuum-assisted low-temperature drying, ensures optimal performance for sensitive and high-value materials.