ZPG Vacuum Rake Dryer
ZPG vacuum rake dryer is a new type of horizontal intermittent vacuum drying equipment. The wet material is conductively evaporated. The scraper stirrer continuously removes the material on the hot surface and forms a circulating flow in the container. The water evaporated and pumped out by a vacuum pump. This machine adopts a large area sandwich heating method, large heat transfer surface, high thermal efficiency, set agitation, so that the material in the cylinder to form a continuous cycle of state, to further improve the material ...
Working Principle
This machine is a novel horizontal intermittent type vacuum drying equipment . The wet material is conductively evaporated. The scraper stirrer continuously removes the material on the hot surface and forms a circulating flow in the container. After the water evaporates, Vacuum pump out.
Performance Characteristics
 ◎ This machine uses a large area of sandwich heating, heat transfer surface, high thermal efficiency. 
 ◎ The machine is set to stir, so that the material in the cylinder to form a continuous cycle of state, to further improve the uniformity of the material heated. 
 ◎ The machine is set to stir, so that the slurry, paste, paste material can be dried smoothly.
Adaptable Materials
 ◎ Pharmaceuticals, food, chemical and other industries conduct the following materials drying: 
 ◎ suitable for paste, paste, powder materials; 
 ◎ heat-sensitive materials that require low temperature drying; 
 ◎ easily oxidized, explosive, strong stimulation, highly toxic materials ; 
 ◎ material recovery requires an organic solvent.
Schematic

Technical Specification
| 
 project  | 
 model  | 
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| 
 name  | 
 unit  | 
 ZPG-500  | 
 ZPG-750  | 
 ZPG-1000  | 
 ZPG-1500  | 
 ZPG-2000  | 
 ZPG-3000  | 
| 
 Working volume  | 
 L  | 
 300  | 
 450  | 
 600  | 
 900  | 
 1200  | 
 1800  | 
| 
 Heating area  | 
 m 2  | 
 6  | 
 7.6  | 
 9.3  | 
 12.3  | 
 14.6  | 
 19.3  | 
| 
 Stirring speed  | 
 Rpm  | 
 6-30 stepless speed regulation  | 
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| 
 power  | 
 Kw  | 
 4  | 
 5.5  | 
 5.5  | 
 7.5  | 
 11  | 
 15  | 
| 
 Sandwich design pressure (hot water)  | 
 Mpa  | 
 ≤ 0.3  | 
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| 
 Vacuum inside the cylinder  | 
 Mpa  | 
 -0.09 to 0.096  | 
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Note: The amount of water evaporation is related to the characteristics of the material and the hot air inlet and outlet temperatures. When the outlet temperature is 90 o C, the water evaporation curve is shown in the above figure (for selection reference). As the product is continuously updated, the relevant parameters are changed without prior notice.
 
              
              
              
                      
                      
                          



