基于非接触试验检测的胶结膏体回填浆管道壁滑移行为

IF 5.6 2区 材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY
Zhenlin Xue, Haikuan Sun, Deqing Gan, Zepeng Yan, Zhiyi Liu
{"title":"基于非接触试验检测的胶结膏体回填浆管道壁滑移行为","authors":"Zhenlin Xue,&nbsp;Haikuan Sun,&nbsp;Deqing Gan,&nbsp;Zepeng Yan,&nbsp;Zhiyi Liu","doi":"10.1007/s12613-023-2610-0","DOIUrl":null,"url":null,"abstract":"<div><p>Wall slip is a microscopic phenomenon of cemented paste backfill (CPB) slurry near the pipe wall, which has an important influence on the form of slurry pipe transport flow and velocity distribution. Directly probing the wall slip characteristics using conventional experimental methods is difficult. Therefore, this paper established a noncontact experimental platform for monitoring the microscopic slip layer of CPB pipeline transport independently based on particle image velocimetry (PIV) and analyzed the effects of slurry temperature, pipe diameter, solid concentration, and slurry flow on the wall slip velocity of the CPB slurry, which refined the theory of the effect of wall slip characteristics on pipeline transport. The results showed that the CPB slurry had an extensive slip layer at the pipe wall with significant wall slip. High slurry temperature improved the degree of particle Brownian motion within the slurry and enhanced the wall slip effect. Increasing the pipe diameter was not conducive to the formation of the slurry slip layer and led to a transition in the CPB slurry flow pattern. The increase in the solid concentration raised the interlayer shear effect of CPB slurry flow and the slip velocity. The slip velocity value increased from 0.025 to 0.056 m·s<sup>−1</sup> when the solid content improved from 55wt% to 65wt%. When slurry flow increased, the CPB slurry flocculation structure changed, which affected the slip velocity, and the best effect of slip layer resistance reduction was achieved when the transported flow rate was 1.01 m<sup>3</sup>·h<sup>−1</sup>. The results had important theoretical significance for improving the stability and economy of the CPB slurry in the pipeline.</p></div>","PeriodicalId":14030,"journal":{"name":"International Journal of Minerals, Metallurgy, and Materials","volume":null,"pages":null},"PeriodicalIF":5.6000,"publicationDate":"2023-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"Wall slip behavior of cemented paste backfill slurry during pipeline based on noncontact experimental detection\",\"authors\":\"Zhenlin Xue,&nbsp;Haikuan Sun,&nbsp;Deqing Gan,&nbsp;Zepeng Yan,&nbsp;Zhiyi Liu\",\"doi\":\"10.1007/s12613-023-2610-0\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Wall slip is a microscopic phenomenon of cemented paste backfill (CPB) slurry near the pipe wall, which has an important influence on the form of slurry pipe transport flow and velocity distribution. Directly probing the wall slip characteristics using conventional experimental methods is difficult. Therefore, this paper established a noncontact experimental platform for monitoring the microscopic slip layer of CPB pipeline transport independently based on particle image velocimetry (PIV) and analyzed the effects of slurry temperature, pipe diameter, solid concentration, and slurry flow on the wall slip velocity of the CPB slurry, which refined the theory of the effect of wall slip characteristics on pipeline transport. The results showed that the CPB slurry had an extensive slip layer at the pipe wall with significant wall slip. High slurry temperature improved the degree of particle Brownian motion within the slurry and enhanced the wall slip effect. Increasing the pipe diameter was not conducive to the formation of the slurry slip layer and led to a transition in the CPB slurry flow pattern. The increase in the solid concentration raised the interlayer shear effect of CPB slurry flow and the slip velocity. The slip velocity value increased from 0.025 to 0.056 m·s<sup>−1</sup> when the solid content improved from 55wt% to 65wt%. When slurry flow increased, the CPB slurry flocculation structure changed, which affected the slip velocity, and the best effect of slip layer resistance reduction was achieved when the transported flow rate was 1.01 m<sup>3</sup>·h<sup>−1</sup>. The results had important theoretical significance for improving the stability and economy of the CPB slurry in the pipeline.</p></div>\",\"PeriodicalId\":14030,\"journal\":{\"name\":\"International Journal of Minerals, Metallurgy, and Materials\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":5.6000,\"publicationDate\":\"2023-07-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Journal of Minerals, Metallurgy, and Materials\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s12613-023-2610-0\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Minerals, Metallurgy, and Materials","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s12613-023-2610-0","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 2

摘要

壁滑移是黏结膏体充填体浆体在管壁附近的一种微观现象,对浆体管道输运流的形态和速度分布有重要影响。用常规的实验方法直接探测井壁滑移特性是困难的。因此,本文基于颗粒图像测速(PIV)技术,建立了独立监测CPB管道输送微观滑移层的非接触式实验平台,分析了料浆温度、管径、固相浓度、料浆流量对CPB料浆壁面滑移速度的影响,完善了壁面滑移特性对管道输送影响的理论。结果表明:CPB浆体在管壁处存在广泛的滑移层,管壁滑移明显;较高的料浆温度提高了料浆内颗粒的布朗运动程度,增强了壁滑效应。增大管径不利于浆体滑移层的形成,导致CPB浆体流动形态发生转变。固相浓度的增加提高了CPB浆体流动的层间剪切效应和滑移速度。当固含量从55wt%提高到65wt%时,滑移速度值从0.025增加到0.056 m·s−1。当浆体流量增大时,CPB浆体絮凝结构发生变化,影响滑移速度,当输送流量为1.01 m3·h−1时,滑移层阻力减小效果最佳。研究结果对提高CPB浆体在管道中的稳定性和经济性具有重要的理论意义。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Wall slip behavior of cemented paste backfill slurry during pipeline based on noncontact experimental detection

Wall slip is a microscopic phenomenon of cemented paste backfill (CPB) slurry near the pipe wall, which has an important influence on the form of slurry pipe transport flow and velocity distribution. Directly probing the wall slip characteristics using conventional experimental methods is difficult. Therefore, this paper established a noncontact experimental platform for monitoring the microscopic slip layer of CPB pipeline transport independently based on particle image velocimetry (PIV) and analyzed the effects of slurry temperature, pipe diameter, solid concentration, and slurry flow on the wall slip velocity of the CPB slurry, which refined the theory of the effect of wall slip characteristics on pipeline transport. The results showed that the CPB slurry had an extensive slip layer at the pipe wall with significant wall slip. High slurry temperature improved the degree of particle Brownian motion within the slurry and enhanced the wall slip effect. Increasing the pipe diameter was not conducive to the formation of the slurry slip layer and led to a transition in the CPB slurry flow pattern. The increase in the solid concentration raised the interlayer shear effect of CPB slurry flow and the slip velocity. The slip velocity value increased from 0.025 to 0.056 m·s−1 when the solid content improved from 55wt% to 65wt%. When slurry flow increased, the CPB slurry flocculation structure changed, which affected the slip velocity, and the best effect of slip layer resistance reduction was achieved when the transported flow rate was 1.01 m3·h−1. The results had important theoretical significance for improving the stability and economy of the CPB slurry in the pipeline.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
CiteScore
9.30
自引率
16.70%
发文量
205
审稿时长
2 months
期刊介绍: International Journal of Minerals, Metallurgy and Materials (Formerly known as Journal of University of Science and Technology Beijing, Mineral, Metallurgy, Material) provides an international medium for the publication of theoretical and experimental studies related to the fields of Minerals, Metallurgy and Materials. Papers dealing with minerals processing, mining, mine safety, environmental pollution and protection of mines, process metallurgy, metallurgical physical chemistry, structure and physical properties of materials, corrosion and resistance of materials, are viewed as suitable for publication.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信