ZHAO Jiapei, LOO Chin Eng, ZHOU Hao, ZHOU Mingxi, WANG Fu, YUAN Jinliang. Effect of sinter mix properties on the flame front properties and iron ore sintering performance[J]. CIESC Journal, 2019, 70(8): 3177-3187
ZHAO Jiapei, LOO Chin Eng, ZHOU Hao, ZHOU Mingxi, WANG Fu, YUAN Jinliang. Effect of sinter mix properties on the flame front properties and iron ore sintering performance[J]. CIESC Journal, 2019, 70(8): 3177-3187DOI: 10.11949/0438-1157.20190001.
Effect of sinter mix properties on the flame front properties and iron ore sintering performance
the pilot-scale sintering cup test and the comprehensive sintering model were combined to analyze the effects of mixture characteristics (sintering alkalinity
coke and moisture addition) on flame kneading properties and sintering properties. Previously developed and validated sintering sub-models have been integrated in this work. Simulations were carried out based on 125 cases simulating a wide range of sintering conditions. Thermochemical modelling using FactSage provided useful information to improve the melting and solidification sub-model and provide greater insights into the state of the material in the flame front. Modelling studies showed that the maximum or minimum values of flame front speed
yield
coke rate and productivity appear when the basicity and coke addition change continuously. Under the sintering conditions of present work
the condition for maximum productivity is basicity 2.0
moisture level 7.7%
coke level 6.4%. The condition for minimum coke rate is basicity 2.0
moisture level 6.5%
coke level 6.4%. Obviously
the optimum productivity and coke rate conditions are different. The actual operating conditions will depend on the objective of a sinter plant.
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references
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