ROTARY VACUUM PADDLE DRYER

    Rotary Vacuum Paddle Dryer is a jacketed cylindrical vessel with a large Diameter Hollow shaft. Attached to the shaft are hollow paddles provided with specially designed scraper blades, which scrap the entire internal surface of the Dryer and continuously move and rotate the material thereby precluding the possibility of material remaining in contact with hot surface for protracted periods of time. The jacket and hollow shaft with paddles can be heated with hot water, steam or any other thermal fluid capable of providing a large indirect heat transfer area. Cooling can be also be done by water, Brine or any other refrigerant through the jacket and hollow shaft. Limpet Coil can be provided in lieu of jacket, if liquid heating medium is used. Hard facing of shaft provided in way of gland packing areas of trunions. Arrangements for Nitrogen purging provided. Bag cleaning arrangement with pulsation by Nitrogen jet injector provided. Heavy duty trunions and bearing support the hollow shaft (agitator) and the drive is provided by means of a motor through reduction gears chain and sprocket. Provision has also been made to insert four breaker bars inside the dryer shell for particle size reduction. In special cases, stationary scraper blade can be provided to scrap the rotating agitator, for highly sticky materials.

    OPERATION

    Slurry / Wet cake is charged through the charging door while keeping rotation of the agitator on. Vacuum is then applied to the Dryer along with Dust Catcher (mounted on the Dryer) Condenser and Receiver. Heating medium is passed through the jacket and Agitator. Vigorous evaporation of moisture takes place under vacuum. The vapour passes through the Bag Filters of the Dust Catcher, goes into the Condenser and the Condensate is collected in the receiver. Evaporation under high vacuum and low temperature results in faster recovery of maximum solvents. Adequate provision has been provided to cater for fluctuations in steam pressure / temperature, in Condenser cooling water temperature, moisture content of feed etc. Dry product is discharged via the discharge valve by reversing the Agitator rotational direction to “Discharge” direction.

    SALIENT FEATURES

    a) Ideal for Temperature sensitive materials.
    b) Almost 100 percent recovery of solvents.
    C) Low energy consumption

    OPERATION CONDITIONS :

    Vacuum : Upto even 0.6 torr
    Heating Temperature : 30° to 300°C

    CAPACITY RANGES:

    Gross Capacity : Fromm 500 ltrs. To 25000 ltrs.
    Charging Capacity : 40 to 60% of Gross Capacity depending on the nature of the products.





    Model No. Gross Capacity Ltrs. Charging Capacity Ltrs/m2 Heating Surface Sq.m. H.P. Dimension in mm.
    A B C D E F G H
    RVD-5 500 200 3.8 7.5 600 1800 4100 4400 6100 2000 1000 3800
    RVD-12 1200 480 9.5 10 1000 2000 4300 4700 6700 2500 1500 4200
    RVD-16 1600 640 10.5 15 1000 2800 5100 5500 7500 2500 1500 4200
    RVD-25 2500 1000 13.6 20 1200 3000 5300 5700 8500 2500 1500 4200
    RVD-30 3000 1200 18.4 20 1200 3400 5700 6200 9600 3000 1500 4400
    RVD-40 4000 1600 19.5 30 1400 3500 5900 6600 10600 3000 1500 4600
    RVD-63 6300 2520 28.1 40 1600 4100 6700 7000 11000 3000 1500 4600
    RVD-80 8000 3200 37.2 50 1700 4600 7600 7800 12500 3500 2000 4700
    RVD-98 9800 3920 40.0 60 1800 5300 8400 8000 14500 3500 2500 6200
    RVD-160 16000 6400 53.1 80 2000 5900 8400 8600 53000 3500 2500 6700
    RVD-200 20000 8000 82.0 100 2500 8000 15000 16500 23500 4200 3000 6800
Magtech Process Equipments Pvt. Ltd.

Plot No. 320-321, Ecotech 1 Extension, Greater
Noida, Gautam Budh Nagar-201306 ( U. P.) India.



Magtech Process Equipments Pvt. Ltd
Technocrats in Filtration & Drying System
For Api,Pharameaceutical & Chemical industry
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