Fluid Bed curing
F l u i d Bed S y s t em T his s y ste m , de v eloped by Rapra during the period 1959 to 1974 uses the principle of fluidisation of particles by the passa g e of air throu g h the m ass. I n its si m plest form the po w der, usually g l ass beads (ballotini), is held in a m etal trou g h in the lo w er portion of w hich lies a la y er of porous cera m ic tiles, abo v e the air pipes and heating m eans. Passa g e of the heated air throu g h the ballotini causes fluidisation. T here is so m e de g r ee ...