TY - JOUR
T1 - 大型浓密机两相流动与沉砂规律数值模拟研究1)
AU - Yang, Kedi
AU - Huang, Baoxing
AU - Li, Zemao
AU - Lan, Shui
AU - Liu, Qingquan
AU - Wang, Xiaoliang
N1 - Publisher Copyright:
© 2024 Chinese Academy of Mechanics. All rights reserved.
PY - 2024/2
Y1 - 2024/2
N2 - The complex structure and system parameter identification of large thickener are the key causes restricting the understanding of solid-liquid two-phase flow and sand settlement behavior. In this paper, we present a set of operational parameter identification methods for the fuzzy system of a large thickener based on the settling mechanism. The numerical model of 30 m thickener in Chehe beneficiation plant was established, of which the feed velocity, feed particle size distribution and feed volume fraction were identified in turn. A large number of numerical simulations point out that the characteristic structure of the feedwell of the 30 m large thickener in Chehe beneficiation plant makes its natural dilution function better, but the dynamic energy dissipation performance is poor, and there is still much room for improvement in the structure of the feedwell. Also, the sedimentation law of particles of each particle size are given.
AB - The complex structure and system parameter identification of large thickener are the key causes restricting the understanding of solid-liquid two-phase flow and sand settlement behavior. In this paper, we present a set of operational parameter identification methods for the fuzzy system of a large thickener based on the settling mechanism. The numerical model of 30 m thickener in Chehe beneficiation plant was established, of which the feed velocity, feed particle size distribution and feed volume fraction were identified in turn. A large number of numerical simulations point out that the characteristic structure of the feedwell of the 30 m large thickener in Chehe beneficiation plant makes its natural dilution function better, but the dynamic energy dissipation performance is poor, and there is still much room for improvement in the structure of the feedwell. Also, the sedimentation law of particles of each particle size are given.
KW - large-scale thickener
KW - parameter identification
KW - sedimentation law
KW - solid-liquid two-phase flow
UR - http://www.scopus.com/inward/record.url?scp=85186872822&partnerID=8YFLogxK
U2 - 10.6052/1000-0879-23-113
DO - 10.6052/1000-0879-23-113
M3 - 文章
AN - SCOPUS:85186872822
SN - 1000-0879
VL - 46
SP - 41
EP - 54
JO - Mechanics in Engineering
JF - Mechanics in Engineering
IS - 1
ER -