Hydraulic calculation of gravity transportation pipeline system for backfill slurry

被引：27
作者：
Zhang Qin-li [1 ]
Hu Guan-yu [1 ]
Wang Xin-min [1 ]
机构：
[1] Cent S Univ, Sch Resources & Safety Engn, Changsha 410083, Peoples R China
来源：
JOURNAL OF CENTRAL SOUTH UNIVERSITY OF TECHNOLOGY | 2008年 / 15卷 / 05期
基金：
中国国家自然科学基金;
关键词：
hydraulic calculation; critical velocity; working velocity; pipe length-backfill depth ratio; backfill capability;
D O I：
10.1007/s11771-008-0120-x
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Taking cemented coal gangue pipeline transportation system in Suncun Coal Mine, Xinwen Mining Group, Shandong Province, China, as an example, the hydraulic calculation approaches and process about gravity pipeline transportation of backfill slurry were investigated. The results show that the backfill capability of the backfill system should be higher than 74.4 m(3)/h according to the mining production and backfill times in the mine; the minimum velocity (critical velocity) and practical working velocity of the backfill slurry are 1.44 and 3.82 m/s, respectively. Various formulae give the maximum ratio of total length to vertical height of pipeline (L/H ratio) of the backfill system of 5.4, and then the reliability and capability of the system can be evaluated.
引用
收藏
页码：645 / 649
页数：5
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