期刊
POWDER TECHNOLOGY
卷 394, 期 -, 页码 478-495出版社
ELSEVIER
DOI: 10.1016/j.powtec.2021.08.087
关键词
Silo pressures; Free-flowing product; Concentric hopper; Flow pattern; Slender silo
In this paper, the authors report the results of pressure in a full-scale silo obtained from assays performed on a test station using a free-flowing product. The discharge flow is not influenced by silo slenderness, and maximum frictional pressures in the cylinder exceeded the standard peaks.
In this paper, we report the results for pressures in a full-scale silo obtained from assays performed on a test sta-tion using a free-flowing product. Six different types of silo geometry (slenderness and hopper angle) were tested by filling the silo to the height of interest and observing a static phase (10 min) followed by complete discharge. Our results show that discharge flow is not influenced by silo slenderness. The lateral pressure ratio and values obtained for vertical stress in the stored material at the transition were higher than those given in the Eurocode 1, part 4. In addition, the maximum frictional pressures in the cylinder showed peaks that exceeded the standard, as did the maximum normal pressure in the cylinder with maximum slenderness and mass flow (hopper beta = 15 degrees). (c) 2021 Elsevier B.V. All rights reserved.
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