| 摘要 |
<p>A process and apparatus for fluidized bed operations wherein the fluidized bed includes an upper fluidized zone and a lower fluidized zone, with each of the upper and lower fluidized zones equipped with agitating means therein. Positioned intermediate the upper and lower fluidized zones are a plurality of tubular zones. Substantially parallel to the fluidized zones as a discharge leg positioned to receive fluidized solids from the lower fluidized zone in which the fluidized solids are fluidized in the leg at a level substantially equal to the level of fluidized solids in the upper zone whereby a position of the solids can be removed from a repositionable discharge means in the discharge leg. The process involved in this invention utilizes fluidized system for starch drying wherein the moisture content of the starch supplied to the fluidized bed is controlled to a level not exceeding 27% whereby the fluidized bed can be operated at higher temperatures without damaging the starch.</p> |
