| 摘要 |
A method and apparatus for cooling hot bulk material, such as glowing coke, clinker, or sinter material, include a vertically oriented cooling tank into which the hot bulk material is introduced and in which the material flows downwardly under gravity and is discharged from an outlet. At least two partial currents of cooling gas are fed into the cooling tank at respective feeding points therein, the feeding point being respectively arranged one over the other so that the cooling gas fed into the tank flows upwardly around the bulk material as the latter flows downwardly to cool the same with the cooling gas being correspondingly heated. According to the invention, the cooling gas partial current fed into the cooling tank at a lower feeding point is at a lower temperature than the cooling gas partial current fed into the cooling tank at a feeding point which is arranged above the lower feeding point whereby the heat recovered is increased and the bulk material cooled to lower temperatures than has been possible heretofore. |
