Nadutyi V.P., Chelyshkina V.V., Kostyria S.V. Humid iron-ore mass dehydration in the field of combined physical forces

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Parent Category: Geo-Technical Mechanics, 2017

Category: Geo-Technical Mechanics, 2017, Issue 134

Geoteh. meh. 2017, 134, 105-114

https://doi.org/10.15407/geotm2017.134.105

 

Nadutyi V.P., D. Sc. (Tech.), Professor,

Chelyshkina V.V., Ph.D. (Tech.), Senior Researcher,

Kostyria S.V., Doctoral Student

(IGTM NAS of Ukraine)

HUMID IRON-ORE MASS DEHYDRATION IN THE FIELD OF COMBINED PHYSICAL FORCES

 

UDC 622.7:532.6

Language: Russian

Abstract. The authors present results of analysis of iron-ore complex dehydration by the device with three factors of effect: vibration, vacuum and electroosmosis. Moisture content change in the narrow classes of the crushed iron ore was studied by the following seven parameters with the help of the pair correlation method: initial humidity, dehydration surface area, vacuum chamber pressure, electrode voltage, the working member oscillation frequency and slope angel, and magnitude of perturbing force in the exciter. In the investigated range of parameter changes, their rational values were determined. Regression dependences between final moisture content and seven parameters of dehydration were developed, which, with high adequacy, describe the process for narrow classes of size grade. Generalized regression model was obtained for practical assessing of moisture content reduction in the crushed iron ore.

Keywords: dehydration, iron ore, complex method, vibration, electroosmosis, vacuuming

 

REFERENCES

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About the authors

Nadutyi Volodymyr Petrovych, Doctor of Technical Sciences (D.Sc.), Professor, Head of Department of Mechanics of Mineral Processing Machines and Processes, Institute of Geotechnical Mechanics named by N. Poljakov of 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.

Chеlyshkina Valentyna Vasylivna, Ph.D. (Tech.), Senior Researcher, Senior Researcher in Department of Mechanics of Mineral Processing Machines and Processes, Institute of Geotechnical Mechanics named by N. Poljakov of 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.

Kostyria Serhii Volodymyrovych, Doctoral Student, Еngineer in Department of Mechanics of Mineral Processing Machines and Processes, Institute of Geotechnical Mechanics named by N. Poljakov of 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.

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