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ZPG vacuum rake dryer
keyword:ZPG vacuum rake dryer ; vacuum rake dryer
CLASSIFICATION:Product Center -> Drying series
DESCRIPTION:
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.


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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.


 
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