Top-cycle heat recovery

Published 15 August 2012


With the publication of an article on the Holcim Lägerdorf kiln in this month’s ICR, Dr Michael Clark muses on the mass and energy flows of such a semi-wet kiln system, even speculating that there will be differences in those energy flows required in winter and summer.

Holcim Lägerdorf is the starting point of this month’s Technical Forum’s foray

into mass and energy flows of semi-wet kiln systems

 

Recent Technical Forum articles have largely been focused around the cement kiln system. Topics have ranged from the fundamental mass balance of a cement kiln, including its impact on productivity, clinker quality and emissions, to the build-up of materials within the process and waste heat power generation possibilities from the exhaust gases flowing from the kiln. With the publication of an account of the Holcim Lägerdorf kiln in this month’s magazine (see p102) it is worth revisiting some of these topics in the context of the semi-wet process of clinker manufacture which that kiln employs.

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