MHCL 2024 conference

Xiangwei Liu
Full Professor
Shanghai Maritime University

Miao Li
PhD Student
Shanghai Maritime University

Peilang Tao
Student
Shanghai Maritime University

Shuhao Yang
Student
Shanghai Maritime University

Investigation into the tremor phenomenon of plug flow in deep-sea minerals lifting system by DEM-MBD coupled simulation

Hoisting and Conveying Equipment and Technologies

In recent decades, deep-sea mining technology has witnessed big advancement. A variety of deep-sea mining tools, minerals lifting systems, and minerals dewatering equipment have been developed. In a recent publication, Liu et al. proposed a new mechanical-hydraulic hybrid vertical lifting (MHHVL) system for deep-sea minerals lifting [1]. In the MHHVL system, the deep-sea minerals particles are hold by numerous carriers. Therefore, the system transports deep-sea minerals in plug flow regime. However, plug flow could also cause pipe blockage and set great risks to the MHHVL system. In this study, DEM-MBD coupled simulation is applied to investigate the tremor phenonmenon of plug flow during vertical lifting. The experimental results demonstrated that the lift error obtained through DEM-MBD coupling simulation was less than 15%, confirming the model's effectiveness and accuracy.