FLUID BED DRYER

The use of  ‘Fluid-Bed’  technique on industrial scale,  has  been  considerably  on  the  increase, specially  for  drying,  cooling,  calcination, agglomeration, combustion and in many other unit operations, due to its manifold  advantages. Compared to conventional batch and other continuous drying method, Fluid - Bed technology offers several advantages such as, no product lump formation / caking, no particle overheating/cooling, a well defined product residence time, uniform product quality, better energy economy due to lower specific heat requirements etc., In ‘Fluid-Bed" the material is suspended in an upward moving hot-air and the mass behaves like a boiling fluid after  "Fluidization".  Thus Fluidization is basically a state of dynamic balance of solids in fluid. Quantity of fine solids in a form of bed are placed on a distributor plate and hot air is passed slowly. The bed expands and then at certain stage, it starts moving vigorously, This is  the state of fluidization.  The fluid Bed Dryers are most suitable  for drying granular,  crystalline,  coarse or similar material.  It is also possible to dry very fine  crystals or very  coarse material.  The air is passed from the bottom of the container which has got perforations  of  S.S. fine wire-mesh. Hot air passes through the product container and therefore the turbulence in the product is obtained and hence the product moves up and down in the product container.  Due to this the heat transfer is very quick and the  product is dried very faster  without appreciable  loss of heat. The Fluid Bed Dryers  are not suitable for drying liquids of pasty  materials.  The fluid bed Dryer will be  complete with  2800 R.P.M.,TEFC Motor, control panel with Timer, 2 no. temperature gauge, Filter bag, SS-304 Quality container with Trolley & heater or steam radiator.