Semenenko Ye.V., Kril S.I., Tatarko L.G. Calculation of the parameters of the hydraulic transport of enrichment waste in poly-ethylene pipes

Details
Parent Category: Geo-Technical Mechanics, 2020
Category: Geo-Technical Mechanics, 2020, № 152

Geoteh. meh. 2020, 152, 285-297

https://doi.org/10.15407/geotm2020.152.285

CALCULATION OF THE PARAMETERS OF THE HYDRAULIC TRANSPORT OF ENRICHMENT WASTE IN POLY-ETHYLENE PIPES

1Semenenko Ye.V., 2Kril S.I.,  3Tatarko L.G.

1Institute of Geotechnical Mechanics by M.S. Poliakov NAS of Ukraine,2Institute of Hydromechanic NAS of Ukraine, 3Ukrainian State University of Chemical Technology

УДК 622.862.3 : 004.42

Language: Russian

Annotation.

In the article, a new method is presented for calculating hydraulic slope and critical speed of cleaning reject hydrotransportation through the polyethylene pipelines, which is based on the Methodology for Calculating Hydrotransport Plants for Tailings Transporting and Inwashing at the Iron Ore Mining and Processing Enterprises. This methodology was approved by the State Construction Committee of the Ukrainian SSR in its Temporary Instructions on Technology of the Tailing Dump Arrangement and was used in the design of all of the waste storage facilities in the Krivyy Rih ore-dressing and processing enterprises.

For the conditions of the experiments, it was shown that experimental multiplier in the formula for calculating critical speed of hydrotransportation was depended on the pipeline diameter, free fall acceleration, kinematic coefficient of water viscosity and absolute roughness of the pipe inner surface. The acknowledgement of these factors made an empirical constant in the considered formula dimensionless and close to average value of the constants in the formulas obtained by other similar methods. With the considered method, it is proved that experimental constant in the formula for calculating critical speed of hydrotransportation is inversely proportional to the cubic root of the roughness of the pipeline inner surface, while coefficient of proportionality is a universal constant, which does not depend on the properties of the pipeline material and is equal to 10.1. Therefore, for determining critical speed of hydrotransportation through the polymer pipes by using this method, it is necessary to multiply critical speed for steel pipe with a similar diameter by the cubic root of ratio of roughness of the inner surfaces of the steel and polymer pipelines. It is further shown that value of hydraulic slope significantly depends on the operating coefficient, which shows by how many times coefficient of friction hydraulic resistance in the polyethylene pipe operating in supercritical flow regime exceeds the same value in case of critical flow regime for the same pipe. The research results allowed finding formulas for calculating hydraulic slope and critical speed of the iron-ore cleaning reject hydrotransportation through the polyethylene pipelines, which are based on the dependencies obtained for the steel pipes and value of absolute roughness of the pipeline inner surface.

Keywords:

cleaning rejects, hydraulic slope, critical speed of hydrotransportation, polyethylene pipelines, calculation method.

References

1. Semenenko, E.V. (2011), Nauchnye osnovy tehnologiy gidromehanizatsii otkrytoy razrabotki titan-tsirkonovyh rossypey [Scientific basis for the technology of hydromechanization of open development of titanium-zircon alluvial deposits], Naukova Dumka, Kyiv, Ukraine.

2. Baranov, Yu.D., Blyuss, B.A., Semenenko, E.V. and Shurygin, V.D. (2006), Obosnovanie parametrov I rezhimov raboy sistem gidrotransporta gornyh predpriyatiy [Justification of the parameters and modes of operation of the systems of hydrotransport mining],  New Ideology, Dnіpropetrovsk, Ukraine.

3 Shuryigin, V.D., Semenenko, E.V. and Nikiforova, N.A. (2005), «Analysis of ways to improve the efficiency of the hydrotransportation complex», Metallurgical and mining industry, no. 6, pp. 70-74

4 Shuryigin V.D. and Semenenko E.V. (2007), «Calculation of the parameters of the hydrotransportation complex using polyethylene pipes», Metallurgical and mining industry, no. 2, pp. 71-74

5 Shuryigin, V.D. and Semenenko, E.V. (2007), «Wear of polyethylene pipes during hydrotransport of the original sands of the Malyshevskoye field», Metallurgical and mining industry, no. 6, pp. 90-93

6 Tatarko, L.G. (2016). Obgruntuvannya parametrIv protsesu gIdrotransportuvannya mIneralnoYi sirovini po magIstralyah Iz stalevih I polImernih trub , Ph.D. dissertation, Geotechnical and mining mechanics, M.S. Poliakov Institute of Geotechnical Mechanics under the NAS of Ukraine, Dnipro, Ukraine.

7 Silin, N.A. and Kobernik, S.G. (1962), Rezhimyirabotyikrupnyihzemlesosnyihsnaryadovitruboprovodov [Modes of operation of large dredgers and pipelines], Academy of Sciences of the Ukrainian SSR, Kyiv, SU.

8 Kobernik, S.G., Voytenko, V.I. (1967), Napornyiygidrotransporthvostovgorno-obogatitelnyihkombinatov [Pressure hydrotransportation of tailings of mining and processing plants], Naukova Dumka, Kyiv, SU.

9 Yufin, A.P.(1967), Gidromehanizatsiya [Hydromechanization], Gosenergoizdat, Moscow, SU.

10 NIISP Gosstroy Ukrainian SSR (1970), MetodikaraschetagidrotransportnyihustanovokdlyatransportainamyivahvostovzhelezorudnyihGOKov  [Methodology for calculating hydrotransportation units for transport and reclamation of tailings of iron ore mining and processing enterprises], NIISP Gosstroy Ukrainian SSR, Kiev, SU.

11 Voytenko, V.I. (1967), Issledovanieparametrovnapornogogidrotransportaothodoviproduktovobogascheniyazhelezorudnyihgorno-obogatitelnyihkombinatov [Investigation of the parameters of pressure hydrotransport of wastes and products of concentration of iron ore mining and processing plants], IGM AS , Ukrainian SSR, Kiev, SU.

12 Karasik, V.M. and Asaulenko, I.A. (1966), Napornyiy gidrotransport peschanyih materialov [Pressure hydrotransport of sandy materials], Naukova Dumka, Kyiv, SU/

13 Yufin, A.P.(1950), Napornyiygidrotransport [Pressure hydrotransport], Gosenergoizdat, Moscow, SU.

14 Mihaylov, K.A., Bogomolov, A.I. (1950), Gidravlika. Gidrologiya. Gidrometriya [Hydraulics. Hydrology. Hydrometry], GUSHOSDOR Ministry of Internal Affairs of the USSR, SU.

15 Gosstroy of the USSR (1985), SNiP 2.04.01-85: Vnutrenniy vodoprovod i kanalizatsiya zdaniy [Internal water supply and sewerage of buildings], Gosstroy of the USSR, Moscow, SU.

16 Gosstroy of the USSR (1984), SNiP 2.04.01-84: Vodosnabzhenie. Naruzhnyie seti i sooruzheniya [Water supply. External networks and facilities], Gosstroy of the USSR, Moscow, USSR.

17 Shvabauer, V., Gvozdev, I. and Gorilovskiy, M. (2006), “Calculation of hydraulic pressure losses in a plastic pipeline”, Polymer pipes, no. 1(1). С. 46 – 52.

18 Silin, N.A., Vitoshkin, Yu.K., Karasik, V.M. and Ocheretko, V.F.(1971), Gidrotransport (voprosyi gidravliki)[Hydrotransport (hydraulic issues)], Naukova Dumka, Kyiv, SU.

19 Silin, N.A. and Vitoshkin, Yu.K.(1964), Gidrotransport uglya po trubam [Hydrotransport of coal through pipes], Naukova Dumka, Kyiv, SU.

20 Silin, N.A., Karasik, V.M. and Asaulenko, I.A. (1973), Problema intensifikatsii gidrotransporta [The problem of intensification of hydrotransport], Naukova Dumka, Kyiv, SU.

21 Loytsyansky, L.G. (1987), Mekhanika zhidkosti i gaza [Mechanics of liquid and gas], Nauka,  Moscow, SU.

About the authors

Semenenko Eugeniy Volodymyrovych, Doctor of Technical Sciences (D.Sc), Senior Researcher, Head of the Department of Problems of Mine Power Complexes, Institute of Geotechnical Mechanics by M.S. Poliakov under the National Academy of Sciences of Ukraine (IGTM, NAS of Ukraine), Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

Kril Stepan Ivanovych, Doctor of Technical Sciences (D.Sc), Professor, Head of the Department of hydrodynamics waterworks, Institute of Hydromechanic of NAS Ukraine (IGM NAS of Ukraine), Kyiv, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

Tatarko Latisa Gavrilovna, Candidate of Technical Sciences, Senior Instructor of the Physics Department, Ukrainian State University of Chemical Technology MES of Ukraine, Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .