基于CFD-DEM的多金属结核小型水力式集矿机构设计  

Design of Small Hydraulic Mining Mechanism for Polymetallic Nodules Based on CFD-DEM

作　　者：李俊[1,2] 程阳锐[1,2] 曾轩[1] 彭建平 LI Jun;CHENG Yangrui;ZENG Xuan;PENG Jianping(State Key Laboratory of Exploitation and Utilization of Deep Sea Mineral Resources,Changsha Research Institute of Mining and Metallurgy Co.,Ltd.,Changsha,Hunan 410012,China;Central South University,Changsha,Hunan 410083,China)

机构地区：[1]长沙矿冶研究院有限责任公司深海矿产资源开发利用技术国家重点实验室,湖南长沙410012 [2]中南大学,湖南长沙410083

出　　处：《矿业研究与开发》2024年第11期1-8,共8页Mining Research and Development

基　　金：国家重点研发计划项目(2022YFC2806802-3)。

摘　　要：为满足科考船舶搭载设备的功率和质量要求,采用单个水泵集中为捕捉喷嘴和输送喷嘴供水的结构设计方案,研制了多金属结核小型水力式集矿机构,运用CFD-DEM软件开展了小型水力式集矿机构流场特性和采集率的仿真分析,并开展了水池试验和海上试验。水池试验结果表明,当采集宽度为0.3 m、采集功率为4.9 kW时,主管路水压为58 kPa,模拟结核采集率为75%,满足设计要求;海上试验采集了19 kg的多金属结核,验证了该集矿机构具备良好的采集功能,可降低搭载设备的功率和质量。研究结果可为类似集矿机构的设计提供参考。In order to meet the power and quality requirements of the equipment carried by the scientific research ship,a small hydraulic mining mechanism for polymetallic nodules was developed using a single pump to supply water for the capture nozzle and the conveying nozzle.CFD-DEM software was used to carry out the simulation analysis of the flow field characteristics and the collection rate of small hydraulic mining mechanism,and the pool test and the sea test were carried out.The pool test results show that when the collection width is 0.3m,the collection power is 4.9kW,and the water pressure of the main pipeline is 58kPa,the collection rate of simulated nodules is 75%,which meets the design requirements.A total of 19kg of polymetallic nodules are collected in the sea test,which verifies that the mining mechanism has good collection function and can reduce the power and quality of the equipment.The research results can provide reference for the design of similar mining mechanism.

关 键 词：小型水力式集矿机构 多金属结核 深海采矿 CFD-DEM 

分 类 号：TD424[矿业工程—矿山机电] TD857