| 摘要 |
In a kiln plant air from a cooler (7) is fed to the second (9) of two preheaters (1, 9) to heat raw material passing therethrough, and is thereafter returned to the cooler (7) for reuse in cooling the product from the kiln (3). The raw material from the second preheater (9) may be fed to the first preheater (1) or directly to the kiln (3) or a precalciner (2). |
