| 摘要 |
<p>A fluid bed dryer (10) for processing a particulate material includes a series of chambers (24,26,28) separated by longitudinally extending common walls (17,19) and connected by turn-around sections (25,27) provide a serpentine path for the material. Each turn-around section is open to adjacent chambers at one end of one of the common walls to receive and turn particulate material distributed across the width of one of the chambers through an arcuate path and deliver the material to the other chamber. Each of the chambers (24,26,28) and turnaround sections (25,27) have a base (30) including a number of gas introduction openings (39) oriented to introduce gas in a specific direction to fluidize and move the particulate material in that direction. The gas introduction openings (39) in the turn-around sections (25,27) are oriented to successively receive and turn incremental vertical columns (C1,C2) of the particulate material in accordance with the distance each incremental vertical column is spaced from the common wall.</p> |
