ZPG-Vacuum rake dryer
working principle
This machine is a novel horizontal intermittent vacuum drying equipment. Wet materials are evaporated through conduction. A scraper stirrer continuously removes the materials on the hot surface, and moves in the container to form a circulating flow. After evaporation, the water is pumped out by the vacuum pump.
performance characteristics
◎ This machine adopts large-area sandwich heating method, with large heat transfer area and high thermal efficiency.
◎ This machine is equipped with stirring to form a continuous circulation of the material in the cylinder, further improving the uniformity of heating of the material.
◎ This machine is equipped with stirring, so that slurry, paste, and paste materials can be dried smoothly.
Adapt materials
◎ Dry the following materials in the pharmaceutical, food, chemical and other industries:
◎ Suitable for paste, paste and powder materials;
◎ Thermosensitive materials requiring low-temperature drying;
◎ Easily oxidizable, explosive, highly irritating and highly toxic materials;
◎ Materials requiring recycling of organic solvents.
schematic structural diagram
technical specifications
| project | models | ||||||
| name | units | ZPG-500 | ZPG-750 | ZPG-1000 | ZPG-1500 | ZPG-2000 | ZPG-3000 |
| working volume | L | 300 | 450 | 600 | 900 | 1200 | 1800 |
| heating area | m2 | 6 | 7.6 | 9.3 | 12.3 | 14.6 | 19.3 |
| stirring speed | rpm | 6-30 stepless speed regulation | |||||
| power | kw | 4 | 5.5 | 5.5 | 7.5 | 11 | 15 |
| Mezzanine design pressure (hot water) | Mpa | ≤0.3 | |||||
| vacuum degree in cylinder | Mpa | -0.09~0.096 | |||||
Note: Water evaporation is related to the characteristics of the material and the hot inlet air and outlet temperatures. When the outlet temperature is 90oC. The water evaporation curve is shown in the above figure (for selection reference). As the product continues to be updated, relevant parameters are subject to change without prior notice.

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