ACCOUNTING FOR THE EFFECT OF PULP PARAMETERS WHEN SIMULATING THE FINE SCREENING PROCESS
Fine screening is an important constituent of magnetite quartzite dressing, whose improvement is largely associated with a further development of the industry. Available mathematical models of dry fine screening allow one to control the process parameters. For wet fine screening, it is necessary to...
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Technical Mechanics| _version_ | 1861590258225774592 |
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| author | NEXZOROV, V. V. SYROTKINA, N. P. MUZYKA, L. V. |
| author_facet | NEXZOROV, V. V. SYROTKINA, N. P. MUZYKA, L. V. |
| author_sort | NEXZOROV, V. V. |
| baseUrl_str | https://journal-itm.dp.ua/ojs/index.php/ITM_j1/oai |
| collection | OJS |
| datestamp_date | 2026-04-04T20:10:29Z |
| description | Fine screening is an important constituent of magnetite quartzite dressing, whose improvement is largely associated with a further development of the industry. Available mathematical models of dry fine screening allow one to control the process parameters. For wet fine screening, it is necessary to take into account the features of the pulp characteristics effect, which makes this study important.
The goal of the work is to determine the effect of the main pulp parameters in developing a model of iron ore screening. As distinct from dry screening, pulp or suspension particle sieving on a hydraulic screen involves the presence of an aqueous medium, whose main characteristic is viscosity. Pulp viscosity is a measure of the internal friction of the suspension, which depends on the concentration, the solid particle size and density, and the viscosity of the liquid phase. It determines the fluidity of the pulp, its ability to transport material particles, and the effect on the process of size separation on the screen. To take into account the features of wet fine screening, the main pulp characteristics are identified and combined into a pulp coefficient. A regression analysis is used to determine the type and value of this coefficient. The level of effect of each of the selected pulp parameters is shown, and the calculated hypersurfaces of the pulp coefficient as a function of the analyzed factors are presented. The form of the pulp coefficient as a function of the pulp characteristics is determined. The adequacy of the obtained screening model is confirmed by a high value of the coefficient of determination R2 = 0.972 and a small value of the standard estimate error SE = 0.00793.
The fine screening process was simulated for a stochastic ore pulp inflow specified as an estimated-parameter distribution using Tikhonov’s fine screening model. To determine the pulp characteristics and the pulp coefficient, a regression analysis was made using the STATGRAPHICS Plus package. The simulated results were compared with those of experimental screening to estimate the simulation accuracy. The results of the mathematical simulation, which relate the ore pulp inflow parameters to those of the fine screening process characteristics, allow the proposed approach to be used in the solution of practical problems.
REFERENCES
1. Andreev E. E., Tikhonov O. N. Raw Material Fragmentation, Grinding, and Predressing. Saint Petersburg: Saint Petersburg State University of Technology, 2007. 439 pp. (In Russian).
2. Oliinyk T. A., Rumnytskyi D. O., Skliar L. V. Particle segregation in the gravity separation of mineral aggregates un an aqueous medium. Journal of Kryvyi Rih National University. 2023. Iss, 56. Pp. 47-54. (In Ukrainian). https://doi.org/10.31721/2306-5451-2023-1-56-47-54
3. Oliinyk T., Rumnytskyi D., Skliar L. Determination of the influence of pulp viscosity on the enrichment process of magnetite suspensions in screw separators. Technology Audit and Production Reserves. Chemical and Technological Systems. 2025. V. 1. No. 3(81). Рp. 6-18.https://doi.org/10.15587/2706-5448.2025.323268
4. Richards R. G., MacHunter D. M., Gates P. J., Palmer M. K. Gravity separation of ultra-fine (−0.1 mm) minerals using spiral separators. Minerals Engineering. 2000. V. 13. No. 1. Рp. 5-77.https://doi.org/10.1016/S0892-6875(99)00150-8
5. Nzeh N., Popoola P., Okanigbe D. et al. Physical beneficiation of heavy minerals - Part 1: A state of the art literature review on gravity concentration techniques. Heliyon. 2023. V. 9. No. 8. e18919.https://doi.org/10.1016/j.heliyon.2023.e18919
6. Tikhonov O. M. Mechanisms of Effective Mineral Separation in Mineral Dressing. Moscow: Nedra, 1984. 208 pp. (In Russian).
7. Oliinyk T. A., Nevzorov V. V. Analysis of the effect of key parameters of raw iron ore on the fine screening process using mathematical models. Technical Engineering. 2025. Iss. 2(96). Pp. 259-272. (In Ukrainian).
8. Sergieiev P. V., Biletskyi V. S. Computer Simulation of Mineral Processing. Mariupol: Eastern Publishing House, 2016. 119 pp. (In Ukrainian). |
| first_indexed | 2026-04-05T01:00:16Z |
| format | Article |
| id | oai:ojs2.journal-itm.dp.ua:article-177 |
| institution | Technical Mechanics |
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| last_indexed | 2026-04-05T01:00:16Z |
| publishDate | 2026 |
| publisher | текст 3 |
| record_format | ojs |
| spelling | oai:ojs2.journal-itm.dp.ua:article-1772026-04-04T20:10:29Z ACCOUNTING FOR THE EFFECT OF PULP PARAMETERS WHEN SIMULATING THE FINE SCREENING PROCESS NEXZOROV, V. V. SYROTKINA, N. P. MUZYKA, L. V. regression analysis, raw materials, fine screening, mathematical simulation, magnetite quartzite dressing, pulp characteristics. Fine screening is an important constituent of magnetite quartzite dressing, whose improvement is largely associated with a further development of the industry. Available mathematical models of dry fine screening allow one to control the process parameters. For wet fine screening, it is necessary to take into account the features of the pulp characteristics effect, which makes this study important. The goal of the work is to determine the effect of the main pulp parameters in developing a model of iron ore screening. As distinct from dry screening, pulp or suspension particle sieving on a hydraulic screen involves the presence of an aqueous medium, whose main characteristic is viscosity. Pulp viscosity is a measure of the internal friction of the suspension, which depends on the concentration, the solid particle size and density, and the viscosity of the liquid phase. It determines the fluidity of the pulp, its ability to transport material particles, and the effect on the process of size separation on the screen. To take into account the features of wet fine screening, the main pulp characteristics are identified and combined into a pulp coefficient. A regression analysis is used to determine the type and value of this coefficient. The level of effect of each of the selected pulp parameters is shown, and the calculated hypersurfaces of the pulp coefficient as a function of the analyzed factors are presented. The form of the pulp coefficient as a function of the pulp characteristics is determined. The adequacy of the obtained screening model is confirmed by a high value of the coefficient of determination R2 = 0.972 and a small value of the standard estimate error SE = 0.00793. The fine screening process was simulated for a stochastic ore pulp inflow specified as an estimated-parameter distribution using Tikhonov’s fine screening model. To determine the pulp characteristics and the pulp coefficient, a regression analysis was made using the STATGRAPHICS Plus package. The simulated results were compared with those of experimental screening to estimate the simulation accuracy. The results of the mathematical simulation, which relate the ore pulp inflow parameters to those of the fine screening process characteristics, allow the proposed approach to be used in the solution of practical problems. REFERENCES 1. Andreev E. E., Tikhonov O. N. Raw Material Fragmentation, Grinding, and Predressing. Saint Petersburg: Saint Petersburg State University of Technology, 2007. 439 pp. (In Russian). 2. Oliinyk T. A., Rumnytskyi D. O., Skliar L. V. Particle segregation in the gravity separation of mineral aggregates un an aqueous medium. Journal of Kryvyi Rih National University. 2023. Iss, 56. Pp. 47-54. (In Ukrainian). https://doi.org/10.31721/2306-5451-2023-1-56-47-54 3. Oliinyk T., Rumnytskyi D., Skliar L. Determination of the influence of pulp viscosity on the enrichment process of magnetite suspensions in screw separators. Technology Audit and Production Reserves. Chemical and Technological Systems. 2025. V. 1. No. 3(81). Рp. 6-18.https://doi.org/10.15587/2706-5448.2025.323268 4. Richards R. G., MacHunter D. M., Gates P. J., Palmer M. K. Gravity separation of ultra-fine (−0.1 mm) minerals using spiral separators. Minerals Engineering. 2000. V. 13. No. 1. Рp. 5-77.https://doi.org/10.1016/S0892-6875(99)00150-8 5. Nzeh N., Popoola P., Okanigbe D. et al. Physical beneficiation of heavy minerals - Part 1: A state of the art literature review on gravity concentration techniques. Heliyon. 2023. V. 9. No. 8. e18919.https://doi.org/10.1016/j.heliyon.2023.e18919 6. Tikhonov O. M. Mechanisms of Effective Mineral Separation in Mineral Dressing. Moscow: Nedra, 1984. 208 pp. (In Russian). 7. Oliinyk T. A., Nevzorov V. V. Analysis of the effect of key parameters of raw iron ore on the fine screening process using mathematical models. Technical Engineering. 2025. Iss. 2(96). Pp. 259-272. (In Ukrainian). 8. Sergieiev P. V., Biletskyi V. S. Computer Simulation of Mineral Processing. Mariupol: Eastern Publishing House, 2016. 119 pp. (In Ukrainian). текст 3 2026-03-31 Article Article https://journal-itm.dp.ua/ojs/index.php/ITM_j1/article/view/177 Technical Mechanics; No. 1 (2026): Technical Mechanics; 113-122 Институт технической механики Национальной академии наук Украины и Государственного космического агентства Украины; № 1 (2026): Technical Mechanics; 113-122 ТЕХНІЧНА МЕХАНІКА; № 1 (2026): ТЕХНІЧНА МЕХАНІКА; 113-122 Copyright (c) 2026 Technical Mechanics |
| spellingShingle | NEXZOROV, V. V. SYROTKINA, N. P. MUZYKA, L. V. ACCOUNTING FOR THE EFFECT OF PULP PARAMETERS WHEN SIMULATING THE FINE SCREENING PROCESS |
| title | ACCOUNTING FOR THE EFFECT OF PULP PARAMETERS WHEN SIMULATING THE FINE SCREENING PROCESS |
| title_full | ACCOUNTING FOR THE EFFECT OF PULP PARAMETERS WHEN SIMULATING THE FINE SCREENING PROCESS |
| title_fullStr | ACCOUNTING FOR THE EFFECT OF PULP PARAMETERS WHEN SIMULATING THE FINE SCREENING PROCESS |
| title_full_unstemmed | ACCOUNTING FOR THE EFFECT OF PULP PARAMETERS WHEN SIMULATING THE FINE SCREENING PROCESS |
| title_short | ACCOUNTING FOR THE EFFECT OF PULP PARAMETERS WHEN SIMULATING THE FINE SCREENING PROCESS |
| title_sort | accounting for the effect of pulp parameters when simulating the fine screening process |
| topic_facet | regression analysis raw materials fine screening mathematical simulation magnetite quartzite dressing pulp characteristics. |
| url | https://journal-itm.dp.ua/ojs/index.php/ITM_j1/article/view/177 |
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