公开(公告)号：US20250026683A1

公开(公告)日：2025-01-23

申请号：US18713109

申请日：2022-11-30

Applicant: HOLCIM TECHNOLOGY LTD

Inventor： Ernst BUCHER ,  Dirk WIMMERT

IPC: C04B7/44 ,  C04B7/36 ,  C04B7/38 ,  C04B7/43 ,  C04B7/47 ,  F27B7/20 ,  F27B7/38 ,  F27D17/00

Abstract: A cement manufacturing plant includes a raw meal mill, at least one preheater string, a clinker furnace and a clinker cooler including a first section and a second section, wherein a preheater exhaust gas recirculation device is provided for recirculating exhaust gas leaving the at least one preheater string into the first section of the clinker cooler, and wherein the cement plant is configured for switching between an air operation mode and an oxyfuel operation mode, includes a first switching device for connecting either a source of air or a source of oxygen rich gas to a burning zone of the clinker furnace burner, and a second switching device for either establishing or separating a connection of the preheater exhaust gas recirculation means to the first section of the clinker cooler.