| 摘要 |
<p>Apparatus for cooling high-temperature particles, such as clinker, includes first and second cooling zones (31,32). The first cooling zone (31) comprises a vertical guide tube (1,4) which temporarily accommodates the particles, a conical or pyramidal body (35) which has a plurality of air passages (6) formed therein and is disposed below the guide tube with its vertex coaxial with the guide tube and an acceleration device (7) which has a plurality of air passages formed in it and which extends coaxially from the body (5) into the guide tube and is vertically reciprocable to facilitate the radially outward movement of the particles on the body (5). The second cooling zone (32) is of packed layer type and is disposed below the first cooling zone for further cooling the particles while they move downwards. A vertical outer tube (3,4) is interposed between the guide tube (1,4) and the conical or pyramidal body (35) with its upper end (A) positioned slightly higher than the lower end (K) of the guide tube. In use, the particles form a stable free surface in the annular opening defined between the guide tube and the outer tube. The passage through which the particles move between the outer tube and the acceleration device converges, in use, towards a layer thickness control gap (12) defined between the lower end of the outer tube and the conical or pyramidal body. </p> |
