HRP20221243 (T1)

Method for the production of cement clinker

(22) 06.04.2021

(43) 09.12.2022

(57) Summary of the corresponding patent WO2021204797 (A1): The invention relates to a method for producing cement clinker, said method comprising the steps of: preheating raw meal in a preheater (12), calcining the preheated raw meal in a calciner (14), burning the preheated, calcined raw meal in a kiln (16) to obtain cement clinker, wherein a combustion gas containing a percentage of oxygen is supplied to the kiln (16) and the temperature inside the kiln (16) is ascertained, and cooling the cement clinker in a cooler (18), wherein the oxygen supply to the kiln (16) is adjusted according to the ascertained temperature in the kiln (16), the ascertained temperature being compared with a desired value, and the oxygen supply to the kiln (16) and/or to the calciner (14) being increased or reduced when the ascertained temperature differs from the desired value, the desired value being set in accordance with the particle size distribution and/or the lime standard.

(71) thyssenkrupp Industrial Solutions AG (DE)

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