Friction losses of cemented unclassified iron tailings slurry based on full-scale pipe-loop test

A. Wu, Z. Ruan, Y. Shao, Wang Jiandong, S. Yin, Shaoyong Wang, Cui-ping Li
{"title":"Friction losses of cemented unclassified iron tailings slurry based on full-scale pipe-loop test","authors":"A. Wu, Z. Ruan, Y. Shao, Wang Jiandong, S. Yin, Shaoyong Wang, Cui-ping Li","doi":"10.36487/ACG_REP/1910_44_RUAN","DOIUrl":null,"url":null,"abstract":"Friction losses is a key parameter in the design of pipeline transportation in paste backfill. A full-scale pipeloop test was conducted in the JCHX Paste Backfilling laboratory to investigate the friction losses of cemented unclassified iron tailings slurry. Friction losses in upward sloping pipe, vertical downward pipe, vertical upward pipe, 90° long radius elbow, horizontal straight pipe and downward sloping pipe were tested simultaneously under different solid fractions. The results indicated that friction losses always increase with flow rate and solid fraction. Friction losses in the elbows are about 1.55–2.16 times that in the horizontal straight pipe, which is about 2.7–10.0 kPa·m-1. The pipe-loop test data can be used to analyse the rheological priorities of cemented unclassified tailings slurry. Based on the Buckingham rheological equation, an empirical formula for friction losses was established and applied to a pipe with the optimal diameter of DN 150 mm. It can be concluded that the full-scale pipe-loop test is an effective way to investigate friction losses and the economics of design pipeline transportation.","PeriodicalId":20480,"journal":{"name":"Proceedings of the 22nd International Conference on Paste, Thickened and Filtered Tailings","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2019-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of the 22nd International Conference on Paste, Thickened and Filtered Tailings","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.36487/ACG_REP/1910_44_RUAN","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 3

Abstract

Friction losses is a key parameter in the design of pipeline transportation in paste backfill. A full-scale pipeloop test was conducted in the JCHX Paste Backfilling laboratory to investigate the friction losses of cemented unclassified iron tailings slurry. Friction losses in upward sloping pipe, vertical downward pipe, vertical upward pipe, 90° long radius elbow, horizontal straight pipe and downward sloping pipe were tested simultaneously under different solid fractions. The results indicated that friction losses always increase with flow rate and solid fraction. Friction losses in the elbows are about 1.55–2.16 times that in the horizontal straight pipe, which is about 2.7–10.0 kPa·m-1. The pipe-loop test data can be used to analyse the rheological priorities of cemented unclassified tailings slurry. Based on the Buckingham rheological equation, an empirical formula for friction losses was established and applied to a pipe with the optimal diameter of DN 150 mm. It can be concluded that the full-scale pipe-loop test is an effective way to investigate friction losses and the economics of design pipeline transportation.
基于全尺寸管环试验的未分级铁尾矿胶结浆摩擦损失
摩擦损失是膏体充填体管道输送设计中的一个关键参数。在JCHX膏体充填实验室进行了全尺寸管道试验,研究了未分级铁尾矿胶结料浆的摩擦损失。同时测试了不同固体组分下,上斜管、垂直向下管、垂直向上管、90°长半径弯头管、水平直管和向下倾斜管的摩擦损失。结果表明,摩擦损失随流量和固相分数的增加而增大。弯头摩擦损失约为水平直管的1.55 ~ 2.16倍,约为2.7 ~ 10.0 kPa·m-1。管环试验数据可用于分析胶结尾砂料浆的流变优先性。基于Buckingham流变方程,建立了摩擦损失的经验公式,并将其应用于最优管径DN为150mm的管道。结果表明,全尺寸管环试验是研究摩擦损失和管道运输设计经济性的有效方法。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
自引率
0.00%
发文量
0
×
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