ROTARY EVAPORATORS >> INDUSTRIAL SCALE  

INTRODUCTION

Rotary Film Evaporator is essentially a thin film evaporator. The rotating flask continuously covers a large surface area with a thin film which is ideal for rapid heat transfer. Fortuitously, the thin film also ensures uniform heat distribution without local heating. The facility to work the unit under full vacuum further facilitates evaporation at as low temperature as possible. That is to say, both boiling point and residence time are significantly reduced. These features combined, renders rotary film evaporator to be ideally suited for evaporation of heat sensitive material. It is equally successful for evaporation of suspension in crystallization processes, drying of powder/granules etc.

Rota Evaporator finds wide use from small scale laboratory set-ups to industrial operation. Goel Rotary Film Evaporator (GRFE) is preferred by both research and production facilities and has been used by laboratory and chemical, pharmaceutical and biotechnological industries.

SALIENT FEATURES:-

1. Universal corrosion resistance.
2. Auto controlled digital display of rotational speed and bath temperatures.
3. Digital display of process time.
4. Automatic bath lifting.
5. Automatic bath lowering in case of power failure.
6. RS - 232 Interface (Optional)
7. Withstands full vacuum.
8. Ideally suited for heat sensitive material.
9. Maintenance free working - Operational reliability
10. Available in large sizes upto 400Litre.

CONSTRUCTION

Goel Rotary Film Evaporators are completely self contained units consisting mainly of :-
#  An electrically heated SS heating bath with facility for raising and lowering the height.
#  Rotating flask of corrosion resistance borosilicate glass which is connected to drive by a coupling.
#  The drive is a hollow glass shaft which also acts as vapor off-take pipe. The drive shaft is sealed on condenser/receiver with Teflon seal. Power is transmitted to the shaft by a motor driven gear with provision for varying speed.       
#  Condenser / Receiver arrangements are of standard design depending on the model/size.

AUTOMATION

All units are supplied with standard instruction and control as under.
# Temperature control of bath with digital display.
# RPM control of flask.
# Fully automatic (PLC control) with dedicated chilling and vacuum units can be supplied on request.

PERFOMANCE DATA

The performance of rota-evaporator depends on various parameters such as temperature differential between bath and contents of flask, RPM, flask capacity and working pressure. An indicative comparison of boil-up CCl4 rates for 20L, 50L and 100L is given in adjacent figure.

Technical informations related to various models are furnished below :

Model

GRFE2

GRFE3

GRFE5

GRFE10

GRFE20

GRFE50

Rotating Flask Capacity (Ltrs.)

2

3

5

10

20

50

Rotating Speed (rpm)

0-80

0-80

0-80

0-80

0-80

0-80

Electric Motor (Hp)

0.25

0.25

0.25

0.25

0.25

0.5

Condenser Cooling Surface Area (m²)

0.10

0.15

0.20

0.20

0.30

0.50

Receiver Flask Capacity (Ltrs.)

1

1

2

5

10

20

Power Supply (Volt / Hz)

230V,
50Hz

230V,
50Hz

230V,
50Hz

230V,
50Hz

230V,
50Hz

230V,
50Hz

Bath Rating (KW)

2

2

2

4

4

6

AVAILABILITY

  • GOEL ROTARY - 20Ltr.
  • GOEL ROTARY - 50Ltr.

20Ltr. GOEL ROTA EVAPORATOR

Technical Information related to GRFE 20 are furnished below :

MODEL

GRFE 20

Rotating Flask  Capacity (Ltrs)

20Ltr.

Rotating Speed (RPM)

0-80/90

Electric Motor Rating (HP)

0.25

Condenser Cooling Surface Area  (M²)

0.30

Receiver Flask Capacity ( Ltrs)

10

Power Supply (Volt/HZ)

230V 50 Hz

Bath Rating (KW)

4

Technical Informations related to GRFE 20 are furnished below

Parameters

GRFE 50

Rotating Flask Capacity (Ltrs)

50Ltr.

Rotating Speed (RPM)

0-80

Electric Motor Rating (HP)

0.5

Condenser Cooling Surface Area (Sq. mtr.)

0.5

Receiver Flask Capacity

20Ltr

Power supply

50Hz 230V

Bath Rating

6 KW

Instrumentation Features in GRFE 50

Temperature controller display :
It indicates the temperature of the water bath; a temperature sensor does this. We can set the temperature as per requirement by membrane switches provided on control panel.

RPM controller and display :
It indicates the RPM of the rotating flask. we can control the speed of flask. The speed can be varied from 0 - 80 RPM.

Vapor temperature display :
It indicates the temperature of the vapor.

Process time  display :
It indicates the running time of the equipment.

Bath Lifting :
Automatic bath height adjustment can be done through control switches provided on control panel.

 


       Products Range
.




Services
  
  
© Copyright Goel Process Systems Pvt. Ltd.