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Loop Pipe Test on Transportation with Full Pipe Flow in a Tapered Pipeline with Gravity-Fed Backfill
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Weitao LIU, Yingying WANG, Ying YANG, Guoli WANG, Libo DONG
Mining and Metallurgical Engineering | 2023, 43(6) : 20 - 23
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Mining and Metallurgical Engineering | 2023, 43(6): 20-23
• MINING •
Loop Pipe Test on Transportation with Full Pipe Flow in a Tapered Pipeline with Gravity-Fed Backfill
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Weitao LIU, Yingying WANG, Ying YANG, Guoli WANG, Libo DONG
Affiliations
  • Beijing JCHX Mine Technology Research Institute Co Ltd, Beijing 101500, China
Published: 2023-12-01 doi: 10.3969/j.issn.0253-6099.2023.06.005
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In order to study the influences of diameter, length and installation position of tapered pipeline on the ratio of full pipe flow in gravity-fed pipeline transport of backfill slurry, a small-scale loop pipe test was carried out by using independently developed tapered pipeline. The hydraulic slope and ratio of full pipe flow were tested for gravity-fed transport of slurry via tapered pipeline, and Pearson correlation analysis was also conducted to explore the influence of various factors on the ratio of full pipe flow. The results show that the ratio of full pipe flow significantly presents a negative correlation to the diameter of tapered pipeline, which increases exponentially with the reduction in the diameter of tapered pipeline. The ratio of full pipe flow increases sharply for a pipe with diameter less than 50 mm. Furthermore, the ratio of full pipe flow presents a positive correlation to the length of tapered pipeline, which increases linearly with the increased length of tapered pipeline. However, the installation position of tapered pipeline in horizontal section of pipe has little effect on the ratio of full pipe flow, which can be negligible.

pipeline transportation  /  backfill pipe  /  gravity-fed transport  /  ratio of full pipe flow  /  tapered pipeline  /  loop pipe test
Weitao LIU, Yingying WANG, Ying YANG, Guoli WANG, Libo DONG. Loop Pipe Test on Transportation with Full Pipe Flow in a Tapered Pipeline with Gravity-Fed Backfill[J]. Mining and Metallurgical Engineering, 2023 , 43 (6) : 20 -23 . DOI: 10.3969/j.issn.0253-6099.2023.06.005
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doi: 10.3969/j.issn.0253-6099.2023.06.005
  • Receive Date：2023-06-25
  • Online Date：2026-03-05
  • Published：2023-12-01
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  • Received：2023-06-25
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    Beijing JCHX Mine Technology Research Institute Co Ltd, Beijing 101500, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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