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ROTOCONE VACUUM FILTER DRYERS

INTRODUCTION

BEW Rotocone Vacuum Filter Dryer is uniquely designed to Filter slurry under pressure or vacuum and to dry wet cake under vacuum only, for products which cannot be agitated either due to crystal breaking limitation or due to static charge generation limitation. It ensures clean and fast filtration. It is also possible to filter at a constant temperature, either low or high. Thorough washing of cake is done with controlled quantity of wash liquid, which can be recovered, reducing washing cycles and effluent discharge.

The closed operation ensures odourless and contamination free working conditions. Our unique design saves costly solvents, power, labor, floor space and time. It is well suited for Sterile applications. It provides economical and pollution free working environment.

BEW Rotocone Vacuum Filter Dryer does not require extensive foundation. It can be fitted on lugs or platform.

The operation of the unit is made quite simple and can be monitored by one person who is familiar with the filtration and drying process. Slurry is charged into RCVFD by gravity or with the help of slurry pump..

SLURRY CHARGIN
(Stationary R.C.V.F.D.) Feed Slurry is charged into R.C.V.F.D. preferably by gravity flow from Reactor installed above the R.C.V.F.D. or by slurry pump. Cake will form on filter bed.
WASHING BY SPRAYING WASH LIQUOR AND RESLURRING
If necessary, after first filtration, wash liquor can be sprayed on filter bed, and cake can be reslurried by manipulation of rotating R.C.V.F.D. movement, filtration can be then repeated. As many washing as necessary can be done till cake is free from all impurities and the quality is within acceptable limits.
CAKE PRESSING AND SQUEEZING
Cake can be pressed applying Air or N2 pressure and some quantity of filtrate can be removed thereby. Final moisture content may be between 5% to 25% depending on the characteristic of solids in the slurry.
REMOVING MOISTURE FROM CAKE B VAPOURIZATION (Drying)
Drying : Filter unit can be provided with limpet coils or Jacket for heating of the vessel. In this process vacuum is applied on the top of the cyclonic Bag Filter, which will accelerate the drying process. The slow movement of R.C.V.F.D. along with high speed Chopper helps faster drying. Vapours will be generated inside R.C.V.F.D. which can be extracted and condensed by heat exchanger just above the receiver.
DISCHARGE OF CAKE
After Drying is over stop the R.C.V.F.D. in vertical inverted position by inching facility available on the Control Panel as shown in the Fig. (Keeping Filter media at top) Now open the hand hole flange and collect dry powder in the tray or container.

ROTOCONE VACUUM DRYERS

INTRODUCTION

This multipurpose drying unit is extremely useful for uniform and low temperature drying of heat sensitive chemicals, pharmaceutical formulations, fine chemicals etc. It has double conical vessel with rotating system and vacuum solvent recovery system. As the Dryer is rotating, there is no charring or retention of product, the result is that one can change the material to be dried without much a do. The Dryer rotates at a very low speed (5 to 15 rpm) and thus has very low wear and tear and requires very little maintenance. This machine is ideal for crystalline products, granules used in chemical, pharmaceutical and food industries. Loss of material is effectively controlled by a specially designed pilot filter fitted on the vacuum side. The finish is up to 220 Grits. The capacity of the machine ranges from 20 liters to 10,000 liters.

The operation of the unit is made quite simple and can be monitored by one person who is familiar with the filtration and drying process. Slurry is charged into RCVFD by gravity or with the help of slurry pump..

TECHNICAL DATA FOR RCVD

CANTILEVER ROTOCONE VACUUM DRYER

INTRODUCTION

This is an unique innovated vacuum dryer which is space saving compared to the conventional Rotocone Vacuum Dryer. This dryer has a single stand on one side only whereas conventional Rotocone Vacuum Dryer has two side stands on either side which occupies more space. This unit is very much useful for drying high sterile pharma and high toxic chemical products along with solvent recovery system under vacuum.

  • 1. Compact design to save the space.
  • 2. Choppers can be employed.
  • 3. Inbuilt mechanical seal.
  • 4. Ideal for high purity sterile process and clean room setup.
  • 5. Suitable for chemical, Pharmaceutical, and biotech industries.
  • 6. Suitable for GMP standard and FDA license.
  • 7. M.O.C. : M.S. Grades / S.S. Grades Hastealloy / Titanium etc.
  • 8. Capacity - 20 Ltrs. to 2,500 Ltrs.
  • 9. Suitable for integration with Isolator barrier system.

TECHNICAL DATA FOR RCVD