LODHA Fluid Bed Dryer

Fluid Bed Dryer is a lucid solution for a fluid turbulence in granulated or wet powder produce by means of hot air flowing in an upward direction and drying the product to a desired temperature.

Wet granules are completely fluidized by a powerful steam or electrical hot air, there by achieving high heat transfer rate and uniform temperature across the product

Unique design of perforated plate for uniform drying without any racking process

Fluidized bed drying technology is used in the entire powder processing industry. Mostly in the pharmaceutical industry this innovative method has replaced the time-consuming tray drying long ago. The drying process with Fluidized bed dryer reduces the drying time. In addition, fluidized bed drying provides controlled and uniform drying conditions compared to the uneven drying in trays.

Properly used, fluidized bed drying provides an efficient solution for the gentle and even drying of your product.

Special Features:

cGMP compliance Model. 2 Bar Construction. Three Stage Filtration i.e. 10μ/3μ/0.3μ. Precise temperature control i.e. ±1°c. PLC controlled WIP. Certified Explosion relief flap. Flameproof construction. Positive earthling device. Premium class mirror finish. Multi-pocket filter bag for perfect air suction with proper Porosity and Permeability. Intelligent process control and safety interlock by PLC & Colour Touch Screen MMI along with printing, 21CFR part 11 and SCADA compatibility. Validation support including DQ /IQ/OQ documents. Food grade finger bag available on customer request.

Advantages:

Drying, Granulating & Coating in one unit. High Degree of flexibility. Quick & easy filter replacement. Easy cleaning. Flame proof Construction. Easy Cleaning. Customized units. Turnkey units

 

Process Operation:

Fluid Bed Dryer is designed to introduce the hot air stream at the base of the product container which is filled with the material. Induced draught is created by means of blower and fresh air is sucked in to the unit. The fresh air is heat by means of electrical heaters or steam or thermic fluid heaters. This hot air stream expands the bed of material at certain velocity & creating turbulence in the product. The phenomenon is known as fluidisation and offer conditions which are almost ideal for drying. Fluidisation produces full agitation of solid particles and since each particle gets surrounded by hot air, heat transfer is extremely high and uniform. The product is dried fast without appreciable loss of heat. Filter bags prevent particles escaping from the dryer.

Control System

 

Manual Control:

Inlet, Outlet, Bed (Optional) Temperature, Heating & Cooling Timer, Filter Bag Shaking On & Off Timer, Damper On & Off Timer.

 

Auto Control:

PLC based with touch Screen and password level to feed the parameter of process for Heating/Cooling & Bag Shaking Timing etc.

Pre stored process parameter will help to achieve consistent product quality.

MMI (Touch Screen) for visualization of machine of specific process condition and data.

 

PLC Indicates:

Visualization of Machine process condition & date.

Alarm Signal

Fault Message

 

SCADA Package (optional)

Drying Time

The drying time depends on various factors such as physical properties of material, moisture content, type of moisture (free or inherent of water or crystallization) drying temperature etc. For example, the crystalline product can be dried faster than amorphous product containing same percentage of moisture at same temperature. Pharmaceutical granules & powder having approximately 20% to 25% moisture can be easily dried. Fluid Bed Dryers

are normally supplied either with Electric Heating or with steam heating. However hot water / hot oil circulation system can also be installed.

 

Documentation

A complete documentation support in terms of DQ / IQ / OQ / FAT / SAT.

We provide necessary support for installation commissioning and start-up of the machine at site.

 

Technical Specification:

Technical Description Lab Models                                        Production Models LI-FBD1 LI-FBD1 LI-FBD1 LI-FBD1 LI-FBD1 LI-FBD1 LI-FBD1 LI-FBD1 LI-FBD1 LI-FBD1 Working Capacity (Kgs.) 1 5 10 30 60 120 200 250 300 500 Blower Motor HP 2 3 3 5 15 20 25 30 40 60 CFM 500 700 700 1200 2600 3500 4500 5500 7500 9000 Steam Consumption kg/hr @ 3 kg cm pressure NA NA 15 25 50 120 175 200 250 400 Heaters (KW) 3 3 6 18 36 54 NA NA NA NA