Journals →  Obogashchenie Rud →  2020 →  #5 →  Back

ArticleName Establishing the causes for low operational reliability of slurry pumps based on a system analysis
DOI 10.17580/or.2020.05.07
ArticleAuthor Ovchinnikov N. P.

Mining Institute, M. K. Ammosov North-Eastern Federal University (Yakutsk, Russia):
Ovchinnikov N. P., Director, Candidate of Engineering Sciences, Associate Professor,


In practice, the difference between the actual and planned costs forthe maintenance of slurry pumps used at concentration and screening plants of Russian diamond mining companies is mainly represented by the costs of purchase and delivery of their new original (OEM) parts. These costs are primarily due to the premature failure of pump components. The impeller is the least reliable or fail-proof element in their design. The main cause for impeller failure is the intense abrasion of its surfaces by mechanical impurities contained in the slurry pumped. The respective comprehensive scientific research has established the critical factors affecting the weighted average service life of pump impellers used by Russian diamond mining companies. A linear regression model has also been designed, allowing to predict the service life of impellers in Russian-made slurry pumps for the processing plants of PJSC ALROSA with a high degree of probability, duly confirmed using the Fisher criterion. The results obtained are of great practical interest as they make it possible to further assess impeller operational durability and to accordingly predict the maintenance costs for the slurry pumps, depending on their specific operation conditions at Russian diamond mining companies.

keywords Diamond mining company, slurry pumps, impeller, slurry, hydroabrasive wear, hydraulic parameters, physical and mechanical properties of slurry

1. 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.
2. Aleksandrov V. I., Sobota I. Vibrodiagnostics of the technical state slurry pumps. Zapiski Gornogo Instituta. 2016. Vol. 218. pp. 242–250.
3. Povetkin V. V., Lem V. P. Hydroabrasive wear of soil and sand pumps. Vestnik Kazakhskogo Natsionalnogo Tekhnicheskogo Universiteta. 2008. No. 6. pp. 51–54.
4. Wesling V., Reiter R., Muller T. Hydroabrasive wear on of high carbide infiltration materials. IOP Conference Series Materials Science and Engineering. 2019. Vol. 480, Iss. 1. Paper 012030.
5. Shen Z. J., Li R. N, Han W., Zhao W. G., Wang X. H. The research on particle trajectory of solis-luquid two-phase flow and erosion predicting in screw centrifugal pump. IOP Conference Series Materials Science and Engineering. 2016. Vol. 129, Iss. 1. Paper 012052.
6. Ramkrishna Dandapat, Arghya Deb. A probability based model for the erosive wear of concrete by sediment bearing water. Wear. 2016. Vol. 350. pp. 166–181.
7. Kosmin V. G., Patsera S. T., Protsiv V. V. Analysis of reasons of insufficient wear resistance of pumps waterjet mixes. Sovremennye Innovatsionnye Tekhnologii Podgotovki Inzhenernykh Kadrov dlya Gornoy Promyshlennosti i Transporta. 2015. No. 1. pp. 83–89.
8. Kesler R. Considerations is selecting a positive displacement slurry pump. Mining World. 2016. Vol. 13, Iss. 4. pp. 34–37.
9. Kranzler T., Arola R. Improwing pump materials for harsh environments. Sulzer Technical Review. 2013. Vol. 2. pp. 10–12.
10. Wang W., Tse P.W. Prognostic of slurry pumps based on a moving-average wear degradation index and a general sequential Monte Carlo method. Mechanical Systems and Signal Processing. 2015. Vol. 56. pp. 213–229.
11. Ovchinnikov N. P. About slurry pumps impellers service life at concentrating plants of ALROSA JSC. Obogashchenie Rud. 2018. No. 4. pp. 51–54. DOI: 10.17580/or.2018.04.10.
12. Men'shikov S. S. Improving the efficiency of ground pumps operation under waterjet wear conditions: dissertation abstract for the degree of Candidate of Engineering Sciences. St. Petersburg, National Mineral Resources University «Gorny», 2014. 20 p.
13. Kislyakov V. E., Shkaruba N. A., Katyshev P. V. Investigation of the jet stream power of the hydromonitor about a sidewall. Izvestiya Tulskogo Gosudarstvennogo Universiteta. Nauki o Zemle. 2018. Iss. 1. pp. 268–275.
14. Sacik S. P. The influence of properties of abrasive particles on wear resistance of metals. Nauka bez Granits. 2006. No. 6. pp. 53–58.
15. Bolobov V. I., Bochkov V. S., Chupin S. A., Stepanov S. Yu. Dependence of the abrasive properties of rocks from their fortresses. Gorny Informatsionno-analiticheskiy Byulleten'. 2015. No. 11. pp. 74–79.
16. Primakin A. I., Bolshakova L. V. Method of expert estimations in the decision of problems of maintenance of economic safety of the managing subject. Vestnik Sankt-Peterburgskogo Universiteta MVD Rossii. 2018. No. 1. pp. 191–200.
17. Rud' Yu. S., Drabina N. V. Statistical evaluation of reliability indicators for ground pump housings 8 Gr 350/40 using the Statistica 6.0 program. Gorny Informatsionno-analiticheskiy Byulleten'. 2006. No. 2. pp. 303–309.
18. Ovchinnikov N. P., Zyryanov I. V. Assessment of durability of sectional pumps in underground kimberlite mines of ALROSA. Gornyi Zhurnal. 2017. No 10. pp. 41–44. DOI: 10.17580/gzh.2017.10.08.

Language of full-text russian
Full content Buy