Numerical Analysis on Characteristics of Reduction Process within a Pre-Reduction Rotary Kiln
نویسندگان
چکیده
The reduction process inside the ore pre-reduction rotary kiln involves a series of physicochemical reactions, and in-depth understanding behavior is helpful to improve product quality productivity. This paper reports three-dimensional steady state mathematical model based on computational fluid dynamics, which considers heat transfer, mass transfer chemical reactions kiln. A user-defined functions (UDFs) program in C language developed define physical parameters calculate between freeboard bed regions. validated by measurement data then used investigate detailed information results show that there temperature gradient bed, maximal near tail decreases gradually as progresses. result also confirms FeO Fe limiting step whole because this reaction requires higher potential. Furthermore, influence C/O mole ratio fill degree are analyzed comparing average temperature, potential metallization ratio.
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ژورنال
عنوان ژورنال: Metals
سال: 2021
ISSN: ['2075-4701']
DOI: https://doi.org/10.3390/met11081180