深海矿石输送设备输送特性研究

徐海良; 饶星; 杨放琼

doi:10.13433/j.cnki.1003-8728.20190169

深海矿石输送设备输送特性研究

doi: 10.13433/j.cnki.1003-8728.20190169

徐海良^1,2,,
饶星¹,
杨放琼^1,2, ,

1.
中南大学机电工程学院，长沙　410083
2.
中南大学高性能复杂制造国家重点实验室，长沙　410083

基金项目: 国家自然科学基金项目(51775561)与湖南省自然科学基金项目(2018JJ2522)资助

详细信息

作者简介:
徐海良（1965−），教授，博士，研究方向为深海采矿，1357856570@qq.com

通讯作者:
杨放琼，教授，博士，yfq20100@163.com

中图分类号: P744; TD807
计量
- 文章访问数: 441
- HTML全文浏览量: 69
- PDF下载量: 34
- 被引次数: 0
出版历程
- 收稿日期: 2019-04-08
- 刊出日期: 2020-06-05

Exploring Conveying Characteristics of Deep-sea Ore Transporting Equipment

Xu Hailiang^{1,2
,},
Rao Xing¹,
Yang Fangqiong^{1,2
, ,}

1.
School of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China
2.
State Key Laboratory of High Performance Complex Manufacturing, Central South University, Changsha 410083, China

摘要

摘要: 为研究深海矿石输送设备输送特性，运用计算流体力学理论和Fluent软件对设备内固液两相流进行三维仿真，研究喷射速度、泵水速度、喷射高度和颗粒粒径对出料质量流量和出口处颗粒平均速度的影响规律。研究结果表明：随喷射速度的增加，出料质量流量先增大后减小，存在最佳喷射速度，出口处矿石平均速度基本呈线性增加；随泵水速度增加，出口处矿石颗粒平均速度大致呈直线上升，出料质量流量变化不大；随喷射高度增加，出料质量流量先上升后下降，在喷射高度为500 mm时最大，而出口处矿石平均速度基本不受影响；随颗粒粒径的增大，出料质量流量先急剧增大，当粒径超过15 mm时缓慢上升，最后缓慢下降，出口处颗粒平均速度基本不受粒径的影响。
- 矿石输送设备 /
- 输送特性 /
- 固液两相流 /
- 仿真
Abstract: To study the conveying characteristics of deep-sea ore conveying equipment, the three-dimensional simulation of solid-liquid two-phase flow in ore conveying equipment was carried out with the computational fluid dynamics theory and the Fluent software. The effects of jet velocity, pumping speed, jet height and particle size on the discharge mass flow rate and average velocity of particles at the outlet was studied. The simulation results show that with the increase of injection velocity, the discharge mass flow first increases and then decreases, there is an optimal injection speed, and the average velocity of ore particles at the outlet increases linearly and increases substantially linearly as the pumping speed increases, but the discharge mass flow does not change much. The discharge mass flow rate rises first and then decreases with the change in injection height, and has an optimal value when the injection height is 500 mm. The change in injection height has no effect on the average velocity of the ore particle at the exit. With the increase of particle size, the discharge mass flow rate increases sharply. When the particle size exceeds 15 mm, it slowly rises and finally decreases slowly. The average velocity of the ore particles at the outlet is basically not affected by particle size.
- ore conveying equipment /
- conveying characteristics /
- solid-liquid two-phase flow /
- simulation

HTML全文

图 1 阀控式清水泵矿石水力输送设备原理图

下载: 全尺寸图片幻灯片

图 2 仿真模型

下载: 全尺寸图片幻灯片

图 3 喷射速度与出料量的关系

下载: 全尺寸图片幻灯片

图 4 不同喷射速度下出口处矿石平均速度

下载: 全尺寸图片幻灯片

图 5 泵水速度与出料量的关系

下载: 全尺寸图片幻灯片

图 6 不同泵水速度下出口处矿石平均速度

下载: 全尺寸图片幻灯片

图 7 喷射高度与出料量的关系

下载: 全尺寸图片幻灯片

图 8 不同喷射高度下出口处矿石平均速度

下载: 全尺寸图片幻灯片

图 9 颗粒粒径与出料量的关系

下载: 全尺寸图片幻灯片

图 10 不同颗粒粒径下出口处矿石平均速度

下载: 全尺寸图片幻灯片

图 11 实验平台

下载: 全尺寸图片幻灯片

图 12 实验原理图

下载: 全尺寸图片幻灯片

表 1 矿石输送设备主要结构参数

名称	数值	名称	数值
储料罐直径d₂/mm	1 820	喉管直径d₄/mm	200
储料罐高度h₁/mm	1 100	喉管长度h₂/mm	450
喷管直径d₁/mm	100	输送管直径d₃/mm	240
锥形管锥度α/(°)	75	输送管长度l/mm	4 000

下载: 导出CSV

表 2 网格无关性验证结果

编号	网格数量	出料量/(kg∙s⁻¹)	相对误差/%
M1	237 688	45.24	–
M2	306 532	38.62	14..63
M3	459 847	35.44	8.23
M4	695 936	34.78	1.86
M5	927 050	34.42	0.95

下载: 导出CSV

表 3 4种参数组合

工况	泵水速度/(m³·h⁻¹)	喷射高度/mm	颗粒粒径/mm
1	480	300	10
2	480	400	15
3	640	300	10
4	640	400	15

下载: 导出CSV

表 4 实验值与仿真值对比

编号	喷射速度/ (m∙s⁻¹)	泵水速度/ (m³∙h⁻¹)	颗粒粒径/mm	出料质量流量/ (kg∙s⁻¹)		相对误差/%
编号	喷射速度/ (m∙s⁻¹)	泵水速度/ (m³∙h⁻¹)	颗粒粒径/mm	仿真值	实验值	相对误差/%
1	3	480	10	33.53	30.51	9.00
2	3	640	15	35.21	31.52	10.50
3	4	480	10	38.76	35.74	7.79
4	4	640	15	41.42	37.96	8.35

下载: 导出CSV

参考文献(18)

[1]	肖业祥, 杨凌波, 曹蕾, 等. 海洋矿产资源分布及深海扬矿研究进展[J]. 排灌机械工程学报, 2014, 32(4): 319-326 doi: 10.3969/j.issn.1674-8530.13.1064 Xiao Y X, Yang L B, Cao L, et al. Distribution of marine mineral resource and advances of deep-sea lifting pump technology[J]. Journal of Drainage and Irrigation Machinery Engineering, 2014, 32(4): 319-326 (in Chinese) doi: 10.3969/j.issn.1674-8530.13.1064
[2]	于淼, 邓希光, 姚会强, 等. 世界海底多金属结核调查与研究进展[J]. 中国地质, 2018, 45(1): 29-38 Yu M, Deng X G, Yao H Q, et al. The progress in the investigation and study of global deep-sea polumetallic nodules[J]. Geology in China, 2018, 45(1): 29-38 (in Chinese)
[3]	刘少军, 刘畅, 戴瑜. 深海采矿装备研发的现状与进展[J]. 机械工程学报, 2014, 50(2): 8-18 doi: 10.3901/JME.2014.02.008 Liu S J, Liu C, Dai Y. Status and progress on researches and developments of deep ocean Mining equipments[J]. Journal of Mechanical Engineering, 2014, 50(2): 8-18 (in Chinese) doi: 10.3901/JME.2014.02.008
[4]	陈光国, 夏建新. 我国矿浆管道输送技术水平与挑战[J]. 矿冶工程, 2015, 35(2): 29-32, 37 doi: 10.3969/j.issn.0253-6099.2015.02.007 Chen G G, Xia J X. Existing technology and technical challenges in slurry pipeline transportation development in China[J]. Mining and Metallurgical Engineering, 2015, 35(2): 29-32, 37 (in Chinese) doi: 10.3969/j.issn.0253-6099.2015.02.007
[5]	徐海良, 何清华. 深海采矿系统研究[J]. 中国矿业, 2004, 13(7): 43-46 doi: 10.3969/j.issn.1004-4051.2004.07.013 Xu H L, He Q H. Research on the sea mining system[J]. China Mining Magazine, 2004, 13(7): 43-46 (in Chinese) doi: 10.3969/j.issn.1004-4051.2004.07.013
[6]	Rogers S. Seafloor resource production[R]. Toronto, Canada: Nautilus Minerals Limited Research Report, 2012: 35-45
[7]	唐达生, 阳宁, 金星. 深海粗颗粒矿石垂直管道水力提升技术[J]. 矿冶工程, 2013, 33(5): 1-8 doi: 10.3969/j.issn.0253-6099.2013.05.001 Tang D S, Yang N, Jin X. Hydraulic lifting technique with vertical pipe for deep-sea coarse mineral particles[J]. Mining and Metallurgical Engineering, 2013, 33(5): 1-8 (in Chinese) doi: 10.3969/j.issn.0253-6099.2013.05.001
[8]	Yoon C H, Park Y C, Kim Y J, et al. A study on flow analysis of lifting pump and flexible hose for sea-test[J]. Journal of the Korean Society for Geosystem Engineering, 2007, 44(4): 1-6
[9]	林鹏, 刘梅清, 燕浩, 等. 轴流泵固液两相数值模拟及磨损特性研究[J]. 华中科技大学学报, 2015, 43(3): 32-36 Lin P, Liu M Q, Yan H, et al. Research on numerical simulation and wear characteristics of solid-liquid two-phase of axial-flow pump[J]. Journal of Huazhong University of Science and Technology , 2015, 43(3): 32-36 (in Chinese)
[10]	徐海良, 曾义聪, 陈奇, 等. 深海采矿矿浆泵内颗粒流动规律的数值模拟[J]. 中南大学学报, 2017, 48(1): 84-90 doi: 10.11817/j.issn.1672-7207.2017.01.012 Xu H L, Zeng Y C, Chen Q, et al. Numerical simulation of particle flow trajectory in slurry pump for deep-sea mining[J]. Journal of Central South University , 2017, 48(1): 84-90 (in Chinese) doi: 10.11817/j.issn.1672-7207.2017.01.012
[11]	杨培邦. 深海采矿阀控式清水泵矿石输送系统研究[D]. 长沙: 中南大学, 2010 Yang P B. Research on ore conveying system of deep-sea mining valve-controlled clean water pump[D]. Changsha: Central South University, 2010 (in Chinese)
[12]	杨放琼, 徐海良, 李立. 一种深海采矿阀控式清水泵矿石水力提升设备: 中国, CN201410519903. 0[P]. 2014-10-08 Yang F Q, Xu H L, Li L. Deep-sea mining valve control type clean water pump ore hydraulic lifting equipment: CN, CN201410519903. 0[P]. 2014-10-08 (in Chinese)
[13]	申正精. 基于颗粒轨道模型的螺旋离心泵内固液两相流动特性研究[D].兰州: 兰州理工大学,2014 Shen Z J. Research on the solid-liquid two-phase flow characteristics in the screw centrifugal pump based on the particle orbit model [D]. Lanzhou: Lanzhou University of Technology, 2014 (in Chinese)
[14]	张洪春. 油页岩流化床内流体力学和干燥特性数值模拟[D].辽宁大连: 大连理工大学,2017 Zhang H C. Numerical simulation of hydrodynamics and drying characteristics in oil shale fluidized bed [D]. Liaoning Dalian: Dalian University of Technology, 2017 （in Chinese）
[15]	雷刚, 马非, 张鹏. 水平圆管内浆氢的流动与传热特性数值模拟[J]. 化工学报, 2016, 67(S2): 64-69 Lei G, Ma F, Zhang P. Numerical simulation on flow and heat transfer characteristics of slush hydrogen in horizontal pipe[J]. CIESC Journal, 2016, 67(S2): 64-69 (in Chinese)
[16]	丁小兵. 深海采矿两级离心泵固液两相流数值模拟研究[J]. 机械科学与技术, 2017, 36(11): 1708-1714 Ding X B. Numerical Simulation of Solid-liquid two-phase flow of two-stage slurry pump for deep-sea mining[J]. Mechanical Science and Technology for Aerospace Engineering, 2017, 36(11): 1708-1714 (in Chinese)
[17]	杨放琼, 周卓, 徐海良, 等. 基于结构化网格的两级矿浆泵数值模拟分析[J]. 东北大学学报, 2017, 38(2): 260-264 Yang F Q, Zhou Z, Xu H L, et al. Numerical simulation of two-stage slurry pump based on structural mesh[J]. Journal of Northeastern University, 2017, 38(2): 260-264 (in Chinese)
[18]	宋武超, 王聪, 魏英杰. 运动参数对回转体倾斜入水流场特性影响[J]. 哈尔滨工业大学学报, 2018, 50(10): 130-136, 142 doi: 10.11918/j.issn.0367-6234.201508005 Song W C, Wang C, Wei Y J. Influence of motion parameters on the flow field characteristics of revolution body with oblique water-entry[J]. Journal of Harbin Institute of Technology, 2018, 50(10): 130-136, 142 (in Chinese) doi: 10.11918/j.issn.0367-6234.201508005