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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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