粗颗粒矿石在提升硬管底部管道内流动状态试验研究  

Experimental Study on Moving State of Coarse Particles at the Bottom of Lifting Pipe

作　　者：李秋华[1] 唐达生[1] 肖红[1] 宋跃文 黎宙 LI Qiu-hua;TANG Da-sheng;XIAO Hong;SONG Yue-wen;LI Zhou(State Key Laboratory of Exploitation and Utilization of Deep.sea Mineral Resources, Changsha Research Institute ofMining 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》2019年第1期5-8,共4页Mining and Metallurgical Engineering

基　　金：国家重点研发计划(2016YFC0304103);国家自然科学基金(51339008);工信部项目(MC-201601-C01)

摘　　要：为研究粗颗粒矿石在提升硬管底部管道内的流动状态,在实验室建立了2套试验系统,对提升硬管底部Y型结构和U型结构开展了粗颗粒提升输送性能试验研究,分析了粗颗粒提升速度和输送浓度对流动状态的影响,观察了2种管道结构下粗颗粒的堵塞状态。结果表明,Y型结构的输送状态优于U型结构。该研究结果可为深海采矿系统中提升硬管底部管道结构设计提供试验验证基础。Two sets of testing system were set up in the laboratory for exploring the moving state of coarse particles at the bottom of lifting pipe. Experimental studies were conducted for the transportation performance of coarse particles respectively in the lifting pipe of Y.type and U.type configurations, and the influences of lifting velocity and transportation concentration on the moving state of coarse particles were analyzed. Furthermore, the blocking phenomenon in the pipe of two configurations was presented. It was found that the coarse particle transportation in the pipe of Y.type configuration was better than that in pipe of U.type configuration. This research can provide an experimental verification for the design of the bottom configuration of lifting pipe in deep.sea mining system.

关 键 词：管道输送 流动状态 提升硬管 粗颗粒 Y型结构 U型结构 提升流速 深海采矿 

分 类 号：TD522[矿业工程—矿山机电]