WO 2021/026714 A1

Cement pre-calciner kiln system and method for preparing cement clinker

(22) 12.08.2019

(43) 18.02.2021

(57) Disclosed are a cement pre-calciner kiln system and a method for preparing a cement clinker. A CO2 self-enrichment-type pre-calciner kiln, an offline-type pre-calciner kiln and a preheater kiln are integrated in the same system, and the system can be switched to the CO2 self-enrichment-type pre-calciner kiln, the offline-type pre-calciner kiln or the preheater kiln according to requirements. The system greatly decreases the investment and operating costs for capturing and purifying CO2 in flue gas and provides an efficient solution for (…).

(71) Tianjin Cement Industry Design & Research Institute Co., Ltd., Tianjin (CN)

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