Rotary Vacuum Dryer (Horizontal Construction)

The agitated vacuum dryer is one of the most versatile in the range and is similar in principle to a paddle dryer. The dryer essentially consists of a jacketed cylindrical vessel arranged for hot water, steam or a suitable thermal fluid flow through the jacket for heating. Doors are provided on the shell, at the top for loading the feed material and at the bottom for discharging. The dryers are available in variety of sizes. The entire drying chamber is well machined to insure small clearance with the agitator blade. Thus, ensures proper shuffling of the material and avoids localized overheating. Due to the agitation of the product in the agitated vacuum dryer the drying time is substantially reduced. A choice of the agitator design which can be arranged with or without heating depends on the material characteristics and process requirements. While designing the shell proper attention is given for external pressure and the shaft designing includes fatigue consideration.


Features of RAYGM Rotary Vacuum Dryer

Offers clean, simple and effective method of drying wet cake, powder and even slurry.

  • Labour and energy costs are minimal compared to tray dryers and product losses during handling are also negligible.
  • It is possible to dry heat sensitive materials at well below boiling points of water and solvents.
  • The agitator is usually the hallow cylinders with hollow arms this allows a considerable Increase in heating surface are there by reducing the drying time.
  • The rotary parts are slow in rotating that ranges from 5-15 RPM so less wear and tear and low maintenance cost.
  • As a heating media we can used Thermic Fluid, Steam or Hot Water. When hot water is used for heating it can be electrically heated when steam is not available.
  • Cooling and heating are provided through the jacket so that the sealed heat transfer media cannot come into contact with the process media.

Benefits of RAYGM Vacuum Dryer

  • Automatic Loading and Unloading system with vacuum conveying are offered.
  • Custom engineered to maximize the unique drying and processing needs of your material to lower the cost of Drying.
  • Factory assembled and FAT offered.
  • Low temperature drying under vacuum makes them more suitable for heat sensitive materials to maintain the quality.
  • Low pressure drying enables processing of highly toxic materials.
  • Limited threat to the workplace using a closed system.
  • The Expensive solvents can be almost completely recovered through a suitable Condenser & Vacuum Receiver.

flash-dryer
flash-dryer

RAYGM Rotary Vacuum Dryer Design Range and Manufacturing Capacity

Design

  • Custom Designed to Customer Satisfaction
  • Pressure Shock resistance Equipment designs
  • Sturdy Designs for Long life.

Feeding Arrangement

  • As per Customer requirements.

Maximum Heating Temperature

  • ≤ 300oC

Application

  • Pigments, Dyes, Centrifuged Solids, Pharmaceuticals, Chemical, Minerals, Agrochemicals, Food Extracts, Natural Extracts, etc.

Gross Volume

  • ≤ 10000 litres

Material

  • Carbon Steel, Carbon Steel with Hardox / Vautid Plates, Stainless Steel 304, Stainless Steel 316, Duplex 32205, Super Duplex 32507 etc.

Heating Methods

  • Using Steam (Most Preferred), Thermic Fluid, Hot Oil

Product Recovery

  • Bag Filters – Reverse Pulse Jet

Emission Control

  • Bag Filters – Reverse Pulse Jet
  • Condensers

Automation & Controls

  • MCC / ICP
  • PLC SCADA
  • DCS

Option Features Depending on Product Properties.

  • cGMP construction
  • Product Conveying and Cooling Systems
  • Steam Generated in the drying process can be routed to Low pressure applications like Thermal Evaporator.