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Cement International


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Numeric modelling of exhaust gas flow in cement production

D. Ivnev, R. Scharf, Leibniz Universität Hannover, Hanover, Germany,
Th. Kolbe, HeidelbergCement Russia, Podolsk, Russia


An inappropriate duct design causes an increase in electrical power consumption for the transportation of exhaust gas in a cement production plant. Due to local hydraulic resistances additional fan input power is required to overcome the increased pressure drop. A reduction of the flow resistances is possible by means of geometrical changes to the design. Different suggestions to reduce the flow resistance have been theoretically investigated. Based on the flow simulation an analysis of the investigated modifications has been performed. The accuracy of the mathematical model has been verified by experimental data.


Summary CEMENT INTERNATIONAL 03/2017 pp 60-65

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03/2017 Content:

Simulation of lime burning
in rotary kilns

Modern forms of qualification in the cement, lime and concrete industries

Numeric modelling of exhaust gas flow in cement production

Influence of the refractory lining on the cost efficiency of clinker production

High-pressure grinding –
an efficient way to produce cement raw meal