摘要
基于1 000 m深海采矿试验系统设计参数,分析了不同工况条件下软管的受力状态和空间形态的特征规律,研究集矿车接地比压和水平拖曳力的变化规律,并模拟软管浮力配置的选取,结果表明:当浮力配置大小及位置固定时,随着软管内流颗粒体积浓度增高,集矿车受到的水平拖曳力减小且接地比压增大;集矿车与中间仓之间水平距离增大时,软管对集矿车水平方向上的分力增大,集矿车受到的水平拖曳力增大,反之减小。通过研究软管形态和集矿车受力状态的变化规律及内在机理,可为深海采矿系统软管输送参数的优化提供依据。
Based on the designed parameters for a sea trial mining system at 1 000 m depth undersea,characteristics of comprehensive force and spatial form of the hose under different working conditions were analyzed. Based on the study of the variations of the ground pressure and horizontal drag force of mining vehicles,a simulation test with the selected parameter configuration for the flexible hose buoyancy was conducted. Results showed that,under the conditions of the same parameter configuration for hose buoyancy and fixed hose position,with an increase in the volume concentration of the particles flowing in the hose,the horizontal drag force of the mining vehicle decreased and the ground pressure increased. Meanwhile,the component force of the hose in the horizontal direction of the mining vehicle increased when the horizontal distance between the mining vehicle and buffer became wider,indicating an increased horizontal drag force for the mining vehicle,and vice versa. Researches on the configuration of flexible hose,the variation rule and the internal mechanism for the stress state of the mining vehicle can provide a basis for the optimization of the hose conveying parameters of the deep sea mining system.
作者
符瑜
曹斌
夏建新
FU Yu;CAO Bin;XIA Jian-xin(College of Life and Environmental Science,Minzu University of China,Beijing 100081,China)
出处
《矿冶工程》
CAS
CSCD
北大核心
2019年第2期15-18,23,共5页
Mining and Metallurgical Engineering
基金
国家自然科学基金(51339008
51434002
51209238)
关键词
深海采矿
浮力配置
软管形态
集矿车
受力状态
deep-sea mining
parameter configuration of hose buoyancy
hose configuration
mining vehicle
stress state
作者简介
符瑜( 1994-),男,海南海口人,硕士研究生,主要从事水砂环境工程研究;通讯作者:夏建新( 1969-),男,湖北黄冈人,教授,博士研究生导师,主要从事水砂环境工程研究。
