深海采矿输送软管空间构型及力学性能分析  

Analysis of Spatial Configuration and Mechanical Properties for Flexible Hose of Deep-Sea Mining System

作　　者：张欣宇 曹华德 夏建新 ZHANG Xinyu;CAO Huade;XIA Jianxin(Key Laboratory of Polar Geology and Marine Mineral Resources(China University of Geosciences,Beijing),Ministry of Education,Beijing 100083,China;School of Ocean Sciences,China University of Geosciences(Beijing),Beijing 100083,China)

机构地区：[1]中国地质大学(北京)极地地质与海洋矿产教育部重点实验室,北京100083 [2]中国地质大学(北京)海洋学院,北京100083

出　　处：《矿冶工程》2024年第5期22-27,共6页Mining and Metallurgical Engineering

基　　金：国家重点研发计划(2021YFC2801500);国家自然科学基金(52201336,52231012)。

摘　　要：为了分析深海采矿输送软管在作业过程中的力学特性,基于Abaqus软件建立了不同工况下中继仓-软管-采矿车的力学模型,以研究浮力施加位置及大小、海流流速和输送介质体积分数对软管构型和软管对采矿车作用力的影响。结果表明:浮力施加位置离采矿车较远,软管易拖地,较近时软管易缠绕;浮力施加位置离采矿车越近,浮力越大,软管对采矿车的作用力越大;海流流速越小,软管越易出现构型问题;海流流速会影响软管对采矿车作用力的方向、大小和变化趋势。建议在海流流速0.2 m/s时,选取浮力1500 N、浮力施加位置距离中继仓12 m,此时,软管对采矿车的最大水平和垂向拉力分别为941 N和1258 N。In order to analyze mechanical properties of conveying hose during deep-sea mining operation,a mechanical model was established with Abaqus software for the buffer,flexible hose,and mining vehicle under different working conditions to analyze effects of buoyant ball position,buoyant force,ocean current velocity and volume fraction of conveyed mineral ores on hose configuration,as well as effect of forces that flexible hose exerts on the mining vehicle.When buoyant balls are put on the position far away from a mining vehicle,the hose is prone to be dragged on the seafloor;while being closer to a mining vehicle,the hose is prone to be entangled.It is shown that the closer to a mining vehicle,the greater the buoyant force and the greater the forces that the hose exerts on the mining vehicle.Furthermore,slower current velocity is more likely to bring greater impact to the hose configuration.The velocity of ocean current will influence the direction,magnitude and variation of the forces exerted on the mining vehicle.It is suggested that with ocean current at a velocity of 0.2 m/s,buoyant balls should be put on the position 12 m away from the buffer,with buoyant force selected at 1500 N.In this case,the maximum horizontal and vertical tensile forces of the hose on the mining vehicle are 941 N and 1258 N,respectively.

关 键 词：深海采矿 管道输送 软管 中继仓 采矿车 浮力球 空间构型 力学性能 

分 类 号：TD857[矿业工程—金属矿开采] P751[矿业工程—矿山开采]