Ralli Oy (Ltd.)
Fluid Bed Drier (FBD)
Product Description
FLUID BED DRYING:
Fluid bed dryers are one of the most common types of dryer used for producing dried particles (powders). Their advantages are low initial capital investment, simple structure and low maintenance costs.
OPEARATION
Consider a bed of particles initially at rest, supported by a perforated plate. Gas is introduced through the perforated plate and as the gas flow increases, at some point the particles become freely suspended in the air stream and the bed begins to expand.
VIBRO-FLUIDIZED BED DRYERS
If order to overcome problems of the fluidization, especially with products that have significant amount of oversized particles, invibro-fluidized bed dryers the distributor is vibrated. This allows keeping the gas flow velocities low, since the large particles are kept moving by the vibrations of the distributor. For this same reason, this design is often used for beds consisting entirely of large particles.
VIBRATING FLUID BED DRYERS
With some difficult to handle products, one option is to install a mechanical agitator to the base of the dryer. The agitator causes to break up most of lumps and mix them into the dry powder.
Fluid bed drying in both stationary and vibrating bed types is another RALLI OY (Ltd.) specialty. Plug flow, mixed flow and multi-stage designs are available. Selection is based on through test work directed to find the best design for the desired product. Many times fluid bed dryers are used in combination with spray dryers or flash dryers to form multi-staged drying systems.
Company Profile:
RALLI OY (Ltd.) was founded by Mr. Seppo Ralli, a Mechanical Engineer, in the year 1985. The company was established as Consultancy Company for the Designing of Evaporation and Drying systems for Dairy / Food / Starch and Biotechnology related Industries. In order to strengthen the operations in Asia, especially in India, RALLI OY (Ltd.) started to cooperate with an Indian based company FOOD & BIOTECH ENGINEERS, a company specialized into fabrication and design of Food and Biotechnology related processes and equipment.
Within a short span the company had Designed, Manufactured and Commissioned more than 100 projects in various fields of Dairy, Starch, Food and Biotechnology to the entire satisfaction of our customers worldwide.
The Company is headed by Mr. Seppo Ralli who is a Mechanical Engineer specialized into Food, Dairy and Biotechnology related processes and equipment. In India technical aspects are being looked after, under Mr. Seppo Ralli’s guidance, by Mr. R.P. Singh, B.Sc (Dairy Technology), M.Sc (Dairy Engineering) and Mr. D.K. Dhawan, a Management Graduate. The technical team of RALLI OY (Ltd.) consists of expert engineers from respective fields of Dairy, Starch, Food and Biotechnology industries.
RALLI OY & its associate company FOOD & BIOTECH, specializes in:
-Designing and manufacturing of Evaporation and Drying Plants.
-Installing and Commissioning of Plants.
-Formulation in Processing / Production for Various Starch Derivatives, Milk, Food & Fruit Juices.
-Economization in energy consumption by selecting efficient Evaporators/Drying Technology.
-Assistance in Modernization to optimize process parameters resulting in process cost reduction
-Serving the Dairy, Starch, Food Processing, and Biotech & Chemical industries with capabilities providing design services, equipment supply, modular process skids, fabricated components and system integration.
RALLI OY offers a full range of manufacturing of Process Plants / Vessels / Heat Exchangers / Evaporators / Dryers / Mixers etc. depending upon the customer’s requirements. RALLI OY, serving the needs of clients worldwide, has very competitive pricing in combination with high quality.
