文献类型：期刊文献

中文题名：螺旋管在小倍线充填中的应用及充填倍线公式修正

英文题名：Application of a spiral pipe in a low stowing gradient backfilling pipeline and amendment of stowing gradient

作者：牟宏伟[1,2];吕文生[1,2];杨鹏[1,2,3]

第一作者：牟宏伟

机构：[1]北京科技大学土木与环境工程学院;[2]北京科技大学金属矿山高效开采与安全教育部重点实验室;[3]北京联合大学北京市信息服务工程重点实验室

第一机构：北京科技大学土木与环境工程学院,北京100083

年份：2016

卷号：38

期号：8

起止页码：1069-1074

中文期刊名：工程科学学报

外文期刊名：Chinese Journal of Engineering

收录：CSTPCD;;Scopus;北大核心:【北大核心2014】；CSCD:【CSCD2015_2016】；

语种：中文

中文关键词：充填;螺旋管;阻力;充填倍线;计算流体力学

外文关键词：backfilling ; spiral pipes ; resistance ; stowing gradient; computational fluid dynamics

摘要：为解决小倍线充填管道局部压力过大、管路磨损严重等问题,本文提出用螺旋管增阻调压的结构与实施方案.结合计算流体力学（computational fluid dynamics,CFD）对增阻调压结构与实施方案进行模拟分析,基于模拟计算的结果提出增加螺旋管道增阻调压结构后计算充填倍线的修正公式.研究结果表明,在2 m·s-1的模拟流速下,螺旋管增阻调压结构所产生的阻力可达同等高度直管的10.1~16.8倍,在保证料浆连续输送的前提下可以有效的起到增阻降压的作用.结合数值模拟的充填倍线修正公式能够较为完善地计算增阻降压后的有效充填倍线.
In order to solve the high pressure and serious worn problems at some sections in a low stowing gradient backfilling pipeline, this article introduces a new solution of spiral pipes to regulate the resistance and pressure. The regulator of increasing resist- ance and its implementation plan are analyzed by using the CFD technique. An amended formula for calculating the stowing gradient is presented by adding spiral increasing resistance based on the simulation. It is shown that, when the transportation speed is 2 m·s-1, the unit-height resistance of the spiral pipe can be 10. 1 to 16. 8 times that of the straight pipeline. This apparatus can fully guarantee the continuous conveying of slurries, and it can also increase the resistance and reduce the pressure effectively. The amended formula can figure out the effective stowing gradient of the backfilling pipeline with spiral apparatus more accurately.