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Название Study of the effects of steel and polymer pipe roughness on the pressure loss in tailings slurry hydrotransport
DOI 10.17580/or.2023.04.08
Автор Serzhan S. L., Skrebnev V. I., Malevanny D. V.
Информация об авторе

Saint Petersburg Mining University (Saint Petersburg, Russia)

Serzhan S. L., Associate Professor, Candidate of Engineering Sciences, Serzhan_SL@pers.spmi.ru
Malevannyi D. V., Postgraduate Student.

POLYPLASTIC Group (Moscow, Russia):

Skrebnev V. I., Leading Technologist


This paper studies the effects of pipeline inner surface materials on hydrotransport energy parameters in the transportation of tailings slurry. It has been established that pipelines with inner surfaces made of polymeric materials ensure higher transportation energy efficiency due to lower specific pressure losses. The respective laboratory tests were carried out in two stages. At the first stage, pressure losses in the transportation of pure water and the initial roughness of the pipe samples studied were experimentally established. At the second stage, changes in sample roughness were studied in the hydrotransport of tailings slurry. The samples were represented by pipes made of high-density polyethylene with an inner layer of thermoplastic vulcanizate; single-layer pressure pipes manufactured in compliance with GOST 18599; and previously used longitudinally electric-welded steel pipes under GOST 10704-91. The influence of the hydraulic friction coefficient on the specific pressure loss and energy intensity of the hydrotransport process has been analyzed. Equivalent roughness values have been established for pipelines made of polymer materials and steel. The relationship between the roughness height parameters of Ra, Rq, Rz and the equivalent even-grained roughness has been established; their changes during tailings slurry hydrotransport have been identified. Hydraulic friction coefficients have been established for new and used pipelines. It has been found that, under the conditions of tailings slurry hydrotransport, pressure losses may be caused by the use of materials with low roughness or by material roughness reduction during operation.

Ключевые слова Pipeline transport, tailings slurry, pressure loss, polyurethane coatings, energy efficiency, inner surface roughness, hydraulic friction coefficient
Библиографический список

1. Aleksandrova T. N. Сomplex and deep processing of mineral raw materials of natural and technogenic origin: state and prospects. Zapiski Gornogo Instituta. 2022. Vol. 256. pp. 503–504.
2. Zhukovskiy Yu. L., Korolev N. A., Malkova Ya. M. Monitoring of grinding condition in drum mills based on resulting shaft torque. Zapiski Gornogo Instituta. 2022. Vol. 256. pp. 686–700.
3. Dzhvarsheishvili A. G. Hydrotransport systems of mining and processing plants. Moscow: Nedra, 1973. 352 p.
4. Dzhvarsheishvili A. G. Pipe transport systems of mining and processing enterprises. Moscow: Nedra, 1981. 384 p.
5. Ovchinnikov N. P., Portnyagina V. V., Dambuev B. I. Specifying the technical state limit value of the pump pulp without disassembling. Zapiski Gornogo Instituta. 2020. Vol. 241. pp. 53–57.
6. Dolganov A. V., Timukhin S. A. Hydroabrasive wear of mine drainage pumps. Moscow: Russian Academy of Natural History, 2016. 180 p.
7. Dolganov A. V. The influence of hydroabrasive depreciation of excretory elements on exploitation qualities of rotary pumps at copper and pyrites pits. Gornyi Informatsionno-analiticheskiy Byulleten'. 2015. No. 8. pp. 181–186.
8. Borokhovich A. I., Yurin P. I., Nikulin A. I., Tat'kov V. A. Some issues of wear, calculation and design of coal-pumping equipment. Novokuznetsk, 1968. 148 p.
9. Bolobov V. I., Popov G. G. Methodology for testing pipeline steels for resistance to grooving corrosion. Zapiski Gornogo Instituta. 2021. Vol. 252. pp. 854–860.
10. Lavrenko S., Klushnik I., Iarmolenko V. Test results for hydraulic drives of sucker-rod pumping units. ARPN Journal of Engineering and Applied Sciences. 2019. Vol. 16, Iss. 14. pp. 2881–2885.
11. Antoev K. P., Popov S. N., Zarovnyaev B. N. A study of promising polymer lining materials resistance to hydroabrasive effects. Izvestiya Tulskogo Gosudarstvennogo Universiteta. Nauki o Zemle. 2019. No. 1. pp. 185–191.
12. Antoev K. P., Popov S. N. Study of resistance to hydroabrasive wear of GRP pipes with a polyurethane coating. Nauka i Obrazovanie. 2017. No. 1. pp. 87–90.
13. Skrebnev V. I., Serzhan S. L., Kalugina E. V. Research of resistance to water-jet wear of plastic and steel pipes. Assessment of the main parameters that affect the wear rate of hydraulic transport systems. Plasticheskie Massy. 2020. No. 9–10. pp. 40–44.
14. Alexandrov V. I., Kibirev V. I., Serzhan S. L. The effectiveness of polyurethane coatings on internal surfaces of slurry lines in tailings slurry hydrotransport systems. Obogashchenie Rud. 2020. No. 4. pp. 35–41.

15. Aleksandrov V. I., Sobota I. Power consumption of hydraulic transport of products of mineral processing. Zapiski Gornogo Instituta. 2015. Vol. 213. pp. 9–16.
16. Avksentyev S. Yu., Makharatkin P. N., Safiullin R. N., Aleksandrov V. I. Specific pressure loss calculations for tailings hydrotransport at the Kachkanar GOK. Obogashchenie Rud. 2022. No. 3. pp. 45–51.
17. Alexandrov V. I., Vatlina A. M., Makharatkin P. N. Substantiation and selection of the design parameters of the hydroficated equipment complex for obtaining backfill mixtures from current enrichment tailings. Zapiski Gornogo Instituta. 2023. 11 p. DOI: 10.31897/PMI.2022.68.
18. Alexandrov V. I., Vlasak P. Design procedure of pressure losses for hydrotransport of the high concetration pulps. Zapiski Gornogo Instituta. 2015. Vol. 216. pp. 38–43.
19. Yu Н., Li Sh., Wang X. The recent progress China has made in the backfill mining method. Part I: The theory and equipment of backfill pipeline transportation. Minerals. 2021. Vol. 11. DOI: 10.3390/min11111274
20. Wang Zh., Chen L., Hu M. Experiment research and mechanism analysis on rheological properties of tailings slurry. Frontiers in Earth Science. 2022. Vol. 10. DOI: 10.3389/feart.2022.1083436
21. Aleksandrov V. I., Timukhin S. A., Makharatkin P. N. Energy efficiency of hydraulic transportation of iron ore processing tailings at Kachkanarsky MPP. Zapiski Gornogo Instituta. 2017. Vol. 225. pp. 330–337.
22. Aleksandrov V. I., Atroshchenko V. A., Vatlina A. M. Analysis of actual head losses in hydraulic transportation of WMS tailings along steel and polyurethane-lined slurry pipelines at Kachkanarsky GOK. Obogashchenie Rud. 2021. No. 6. pp. 53–58.
23. Aleksandrov V. I., Kibirev V. I. Estimation of efficiency of hydrotransport pipelines polyurethane coating application in comparison with steel pipelines. Obogashchenie Rud. 2016. No. 6. pp. 51–57.
24. Smoldyrev A. E. Pipeline transport. Moscow: Nedra, 1980. 293 p.
25. Wang X., Wan W., Liu Y., Gao R., Lu Zh., Tang X. Analysis of factors influencing the flow characteristics of paste backfill in pipeline transportation. Sustainability. 2023. Vol. 15, Iss. 8. DOI: 10.3390/su15086904
26. Manual on the design of hydraulic transport (to SNiP 2.05.07–85). Moscow: Stroyizdat, 1988. 40 p.
27. Instructions for the hydraulic calculation of systems for pressure hydraulic transport of soils P59-72. Leningrad: Energy, 1972. 32 p.
28. Bogomolov A. I., Mikhaylov K. A. Hydraulics. Moscow: Stroyizdat, 1972. 648 p.
29. Geyer V. G., Dulin V. S., Zarya A. N. Hydraulics and hydraulic drive. Moscow: Nedra, 1991. 331 p.
30. Altshul A.D. Hydraulic resistances. Moscow: Nedra, 1982. p. 224.
31. Nikitin M. N., Solovyova T. S., Shlyakhtina O. V. Solutions in explicit form for determining the hydraulic resistance coefficient for turbulent flow. Gradostroitelstvo i Arkhitektura. 2019. Vol. 9, No. 4. pp. 39–46.
32. GOST 25142-82. Surface roughness. Terms and definitions. Moscow: Standartinform, 2018. 16 p.
33. GOST 2789-73. Surface roughness. Parameters and characteristics. Moscow: Standartinform, 2006. 8 p.
34. Atroshchenko V. A., Avksentiev S. Yu., Makharatkin P. N., Trufanova I. S. Experimental hydrotransportation unit for testing material resistance of pipelines and parts of dredging pumps to hydroabrasive wear. Obogashchenie Rud. 2021. No. 3. pp. 39–45. DOI: 10.17580/or.2021.03.07
35. Kuskildin R. B., Vatlina A. M. Method of accelerated industrial testing of hydroabrasive wear of polymer coatings of steel pipes. Journal of Physics: Conference Series. 2021. Vol. 1728. DOI: 10.1088/1742-6596/1728/1/012029
36. GOST 8.586.1-2005. State system for ensuring the uniformity of measurements. Measurement of liquids and gases flow rate and quantity by means of orifice instruments. Part 1. Principle of the method of measurements and general requirements. Moscow: Standartinform, 2007. 50 p.
37. Shurygin V., Semenenko E. Substantiation of the scientific approach to the calculation of hydraulic transport parameters in plastic pipelines. Polimernye Truby. 2007. No. 1. pp. 50–56.

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