| 摘要 |
1. A process for operating a steam generator in which air is heated by means of the hot flue gases in countercurrent flow through an air pre-heater arranged in the furnace plant and the heated air is mixed with recirculating flue gas before being injected into the furnace plant characterised in that the bulk of the recirculating flue gas is supplied to the air pre-heater between the flue gas passage and the air passage and a quantitatively regulatable sub-stream of the recirculating flue gas is directed into the air passage and mixed with the air stream. |
