| 摘要 |
<p>A fluidised bed of the kind comprising a container (10) in which is disposed a mass of particulate material (11), there being also provided a sparge pipe assembly such as pipes (14, 15, 16 and 17) which are connected by one or more feed pipes (18 and 19) which are themselves connected externally of the container to a supply of fluidising gases. Said sparge pipes are provided with outlet apertures or nozzles (28) through which the fluidising gases can flow into said particulate material. The or each of said sparge pipes is of endless configuration and the fluidising gases are recirculated within said endless sparge pipes by means of one or more tangentially inclined injectors (21).</p> |
