| 摘要 |
Apparatus for producing cement clinker, comprising a kiln (3) for calcining raw materials to form cement clinker, comprising a preheating stage (2) for preheating the raw materials in counterflow to kiln off-gases, comprising a clinker cooler (4) for cooling the cement clinker, comprising a denitrification stage (23) for denitrificating kiln off-gases, comprising a heat exchanger (25) for heating the kiln off-gases upstream of the denitrification stage (23) by heat exchange with a heat exchange medium, comprising at least one further heat exchanger (27', 27'', 27''') for heating the heat exchange medium by heat exchange with kiln off-gases or exhaust air of the clinker cooler (4), wherein the heat exchanger (25) is connected to the further heat exchanger (27', 27'', 27''') by way of a line (28', 29'; 28'', 29''; 28''', 29''') for the heat exchange medium, wherein a hot gas filter (26, 5, 19) is arranged upstream of the further heat exchanger (27', 27'', 27''') in the direction of flow. |
