| 摘要 |
<p>The invention relates to a method and apparatus for drying loose materials, mainly agricultural products, in a fluidised bed. According to the invention, the material is processed simultaneously by two heat carrier flows, by a constant heat carrier flow having a velocity of 0.2-0.5 mps and by a pulsating flow in the form of fluid shock wave with a pulsating frequency of 4-20 Hz and at duration of an impulse of not more than 0.02 sec, at a relative pressure difference between the flows of 1500-2000 Pa, thereby a fluid shock wave being created. Application of the invention provides enlarging the variety of materials, which can be dried, reducing the power inputs and simplifying the construction of drying equipment.</p> |
