海底多金属结核水力式集矿系统产生的污泥浓度分析  

Concentration Analysis for Plume Caused by Hydraulic Collecting System in Deep⁃Sea Polymetallic Nodules Mining

作　　者：陈时平[1] 卓晓军[1] 李俊[1] 郑皓[1] 双志[1] 王伟 CHEN Shiping;ZHUO Xiaojun;LI Jun;ZHENG Hao;SHUANG Zhi;WANG Wei(State Key Laboratory of Exploitation and Utilization of Deep Sea Mineral Resources,Changsha Research Institute of Mining and Metallurgy Co Ltd,Changsha 410012,Hunan,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

出　　处：《矿冶工程》2023年第3期16-19,共4页Mining and Metallurgical Engineering

基　　金：2020年度湖南省科技重大专项(2020GK1020);中国五矿集团重大科技专项;长沙矿冶研究院有限责任公司青年基金项目。

摘　　要：研究了海底多金属结核水力式集矿系统在不同工况条件下产生的污泥浓度。结果表明,海底多金属结核水力式集矿系统中输送系统脱泥排放产生的污泥浓度远高于捕捉系统扰动底质淤泥产生的污泥浓度,是产生水体浑浊的主要原因之一。试验过程中污泥浓度变化曲线呈现先迅速上升后快速下降的变化趋势,随着捕捉系统水泵油压增大,污泥浓度增大;输送系统水泵油压对污泥浓度影响不明显。The concentration of plume caused by hydraulic collecting system during deep⁃sea polymetallic nodules mining under different working conditions were analyzed.Test results show that the concentration of discharged plume from conveying system is much higher than that of sediment plume caused by the disturbance of capture system,which is one of the main causes of turbidity current in the sea.In the test,the curve of slurry concentration presented a steep upward trend line followed by a steep downward line.Increasing oil pressure of the pump of capture system will lead to higher concentration of slurry.However,the oil pressure of the pump of conveying system won′t result in obvious variation in slurry concentration.

关 键 词：深海采矿 多金属结核 水力式集矿 污泥浓度 海洋环境保护 

分 类 号：TD807[矿业工程—矿山开采]