| 摘要 |
<p>Each passage opening 2A for the fluidising gas is connected to a feed conduit 5 by an individual pipe 3 in which is fitted, below the grid 1, between two flanges 6, 6', a flat semipermeable component 7 through which the fluidising gas passes but which stops the flow in the opposite direction of a substantial fraction of the particles of which the fluidised bed is composed, with the result that, after a stoppage, this bed can be easily returned to a fluidised state. <IMAGE></p> |
