Welcome to Changzhou Pengdong drying equipment Co., LTD official website!
+86-16615195666(International Hotline)
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+86-16615195666(International Hotline)
Product introduction：
ZPG vacuum rake dryer is a novel horizontal intermittent vacuum drying equipment, wet materials through conduction evaporation, with a scraper agitator constantly reduce the hot surface of the material, and in the container to form a circulation flow, water evaporation by the vacuum pump out. The machine adopts a large area sandwich heating method, large heat transfer surface, high thermal efficiency, set stirring, so that the material in the cylinder to form a continuous circulation state, further improve the uniformity of the material heating, so as to smoothly paste, paste, paste material drying.
Technical parameter：
Item | Machine type | |||||||
Name | unit | ZB-500 | ZB-750 | ZB-1000 | ZB-1500 | ZB-2000 | ZB-3000 | ZB-5000 |
Working volume | L | 300 | 450 | 600 | 900 | 1200 | 1800 | 3000 |
Inner barrel size | mm | Φ600x1500 | Φ800x1500 | Φ800x2000 | Φ1000x2000 | Φ1000x2600 | Φ1200x2600 | Φ1400x3400 |
Stirring speed | rpm | 5-25 | 5-12 | 5 | ||||
Power | kw | 4 | 5.5 | 5.5 | 7.5 | 11 | 18.5 | 22 |
Sandwich design pressure | Mpa | ≤0.3 | ||||||
Cylinder pressure | Mpa | -0.09～0.096 | ||||||
Working principle：
The vacuum rake dryer is mainly composed of a shell, a rotating shaft and rake teeth.
Rake dryer is vacuum operation, first of all, the wet material is added to the dryer, start the stirring device, the jacket into the heating medium, through the jacket heat transfer and vacuum to discharge the water in the material.
Using the positive and negative rotation of the rake teeth, the material is continuously pushed to the middle and both ends during the drying process, which can ensure the timely update of the heat transfer surface, thus accelerating the heat and mass transfer rate.
When the material is dry to the specified moisture, stop heating, close the vacuum system, take out the dried material, and complete the operation of one cycle.
This dryer is suitable for drying slurry, paste, granular and fibrous materials, especially for heat-sensitive materials and drying operations requiring recovery of organic vapors, vacuum rake dryers have many advantages.
Product characteristics：
● This machine adopts sandwich heating mode, large heat transfer surface, high thermal efficiency.
● The main engine air outlet is provided with a filter to prevent dust from entering the rear vacuum system.
● The main shaft seal adopts the packing seal structure, and the vacuum degree in the protection box is required.
● The sealing place adopts shaft head grinding round treatment to ensure surface accuracy and reliable sealing.
● The inner surface of the equipment and the contact place of the product are polished to prevent the accumulation of material from affecting the drying effect.
● It has good heat transfer effect.
