| 摘要 |
In a plant for manufacturing cement clinker in which cement raw material is burnt in a kiln (8) after heating in a multi-stage preheater (1,2,3,4,5) by hot gases, at least the first stage of the preheater comprises a heat exchanger (1) having a raw material section (13), a separate hot gas section (14), and means (12,15) for enabling indirect heat transfer between the hot gas section (14) and the raw material section (13). |
