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Modelling of solids transport and deposition for an iron-ore slurry pipeline

机译:铁矿石泥浆管固体运输和沉积的建模

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This paper summarises a study which was conducted for Samarco Mineragao S.A. to demonstrate different applications of predictive modelling to improve the operation and maintenance of Samarco's first pipeline, and also to showcase several advantages of using the proposed methodology and model in designing future slurry pipelines and transportation systems. A comprehensive analysis has been performed to identify the possible causes of internal metal wear inside an iron-ore slurry pipeline. This study included an overall review of the production and pipeline operational data, assessing the risk of solids deposition based on different dominant slurry flow regimes andfrictional head-loss estimation. As the first step of a series of investigations, the present study focused on: 1) investigating the transportation and deposition ofparticulates/solids for the non-Newtonian iron-ore slurry flow at high volumetric concentrations; 2) estimating the maximum size of the particles which can be safely transported without causing severe deposition or forming a significant sediment layer at different flow rates; and 3) estimating the pressure drop for different flow rates, particle sizes and inclination angles.
机译:本文总结了对Samarco Mineragao SA进行的研究,以证明预测模型的不同应用,以改善Samarco的第一管道的运行和维护,以及在设计未来泥浆管道和运输方面使用所提出的方法和模型的若干优点系统。已经进行了综合分析以确定铁矿石浆线管道内部金属磨损的可能原因。本研究包括对生产和管道运营数据的总体审查,评估了基于不同主要浆料流动规制的固体沉积的风险,并进行了头部损失估计。作为一系列调查的第一步,本研究重点是:1)在高容量浓度下研究非牛顿铁矿石浆液流动的分离和沉积术术/固体; 2)估计可以安全地运输的颗粒的最大尺寸而不会在不同流速以严重沉积或形成显着的沉积层; 3)估计不同流速,粒度和倾斜角度的压降。

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