Vats & Vessels

Vats & Vessels Fluid Bed Dryers are useful in pharmaceuticals, dyes, chemicals, plastics and food industries.

Working -
Air generated by the powerful blower is passed through a Fin tube radiator. The air which has now become hot is forced into the product container carries the product upward. This creates a very high fluidization effect, where each and every particle of the product comes into contact with the hot air. Due to this, heat transfer efficiency is increased and drying time is reduced considerably.
The conventional method of drying products in Tray Dryers is rather Time Consuming & troublesome. They occupy large floor space.
The product container shall have a Hollander weave mesh screen at the bottom. The container shall be mounted on a SS trolley with castor wheels which shall enable it to be moved around. The product container shall be lifted up to the SS 316 retaining chamber. It shall have an auto shaking device connected to the bags. All gaskets shall be of NeoPrene.

Special Features of Vats & Vessels Fluid Bed Dryers -

• Uniform & Rapid Drying.
• Occupies small Floor Space
• Absence of moving parts results in ease of maintenance.
• Capacity - 15 Kg. to 250 Kg
• Finger bag chamber with Fully automatic Bag Shaking
• Bucket type bottom chamber above ground level
• Pneumatic lifting & locking for product container with retarding chamber
• Fully automatic bag shaking
• Inlet-air filtration system with 0.3 micron Hepa filters
• Heating can be Electric Heating or Steam Heating Type.

Vats And Vessels Tray Dryers are useful in Pharmaceutical, Chemical, Dyestuffs, Food & Automobile Industries.
A Tray Dryer is an enclosed, insulated housing in which Trays are placed on angled rack. Material to be dried is placed on the trays. Heating media is Hot Air, and heat transfer is direct from gas to solid.
Electric heaters and circulation fan arrangement maintains the constant temperature in the dryer and ensures uniform circulation of hot air.
Tray Dryers are available in 12, 24, 48, & 96 tray capacity models, constructed in Stainless Steel 304 / 316 / 316L cGMP construction

Special Features of Vats & Vessels Tray Dryer -

• Fan is dynamically balanced with specially sealed bearing to withstand the high temperature
• Heating Arrangement - Electrical / Steam heating
• Designed for uniform circulation of hot air in the drying chamber
• Tunnel type dryers wherein trolleys are placed one behind the other and double door loading
• Electric heater terminals situated outside the hot zone in case of electrically heated dryers. Heaters are accessible and replaceable from outside the dryer
• The front doors are explosion proof and are locked with the help of spring loaded ball latches with suitable pressure
• Tray Dryer has a filter for fresh air inlet and an adjustable air outlet

Vacuum Shelf Dryers are extensively used for efficient drying in the pharmaceutical, chemical & food process industries. They are very useful for drying temperature sensitive, easily oxidisable, toxic, hygroscopic and expensive dusty materials. The Vacuum Shelf Dryers comprises of the following:

• Vacuum enabled drying chamber with internal hollow shelves.
• Solvent extraction system (optional) with shell & tube type heat exhanger and reciever.
• Vacuum pump with interconnecting pipelines and valves.
• Heating system with water / oil boiler, expansion tank, circulation pump and interconnecting pipelines and valves.

Working principle The product laden trays are placed on the shelves provided in the chamber. After which the door is locked. The chamber is vacuumised. Heating system is also started. The hot oil / water starts circulating inside the shelves in a serpentine manner. Due to this configuration, the heat transfer from the shelves to the trays is quite fast. The heat is transferred to the product from the shelf on which it is placed due to conduction and from the shelf above due to radiation. The boiling point of the product is brought down considerably due to vacuum.

• Vacuum Shelf Dryers are available in sizes ranging from 6 trays to 96 trays.
• Double door loading for larger models
• Plc based controls for automatic mode.