深海采矿水力提升管路系统紧急泄料过程参数分析

在现有的深海采矿工艺中，以水力提升最具有前景，但水力提升系统投资巨大，存在诸多风险，其中紧急情况下为避险可能需要快速将管道中物料泄空，确保管道不被堵塞。分析提升管路中浆体的受力情况，建立了深海采矿水力提升管路中浆体的运动方程，探讨了提升管路中的浆体的下泄速度与提升浓度和管路直径之间的相互关系。在此基础上，提出了4种快速泄料的方案，并进行了比较。结果可为深海采矿中试系统设计提供依据。

Analysis of the Process Parameters of the Hydraulic Lifting Piping System in Deep-sea mining

Of the current deep-sea mining processes, hydraulic lifting is the most prospective. However, hydraulic lifting system involves an enormous investment and many risks, and in emergency, a rapid emptying of the piping may be required to ensure no blockage in the piping. The stress of the slurry in piping is analyzed, a formula of the movement of the slurry in the hydraulic lifting piping in deep-sea mining established and the relationship between the pulp discharging velocity in the lifting piping and the slurry concentration &; pipe diameter discussed. On this basis, four rapid discharging schemes are proposed and compared for the design of a pilot system.