Voloshyn O.I., Potapchuk I.Yu., Zhevzhyk O.V. Prospects of thermal tool with arc electric discharge usage in process of the rock breaking

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Parent Category: Geo-Technical Mechanics, 2016

Category: Geo-Technical Mechanics, 2016, Issue 131

 

Geoteh. meh. 2016, 131, 33-43

 PROSPECTS OF THERMAL TOOL WITH ARC ELECTRIC DISCHARGE USAGE IN PROCESS OF THE ROCK BREAKING

¹Voloshyn O.I., ¹Potapchuk I.Yu., ¹Zhevzhyk O.V.

¹IGTM NAS of Ukraine 

UDC 622.236.3:621.791.947.037 

Abstract. Objective of this study was to analyze prospects and expediency of using thermal tools with the arc electric discharge in processes of thermal reaming of boreholes. To this effect, and on the basis of analyzed literature, various thermal tools used for the rock breaking, their advantages and drawbacks were compared. It is determined, that, if to compare with other methods of rock thermal breaking, rock breaking by the jet of low-temperature plasma differs by fractures propagation into significant depth, greater values of convective heat transfer coefficient and specific heat flow, and compactness of the equipment. The known engineering models of the rock thermal breaking were analyzed. The key trends of improving the existing thermal tools with arc electric discharge and technologies of thermal reaming of boreholes are described. The obtained results can be used for analyzing efficiency of application of thermal tools with the arc electric discharge in other technologies of thermal treatment and destruction of materials.
Keywords: thermal expansion, hole, thermal tool, rock, plasma generator.

REFERENCES

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About the authors:

Voloshyn Oleksii Ivanovych, Corresponding Member of the National Academy of Sciences of Ukraine, Doctor of Technical Sciences (D. Sc), Professor, Deputy Director, M.S. Polyakov Institute of Geotechnical Mechanics under the National Academy of Sciences of Ukraine (IGTM, NASU), Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

Potapchuk Iryna Yuriivna, Master of Science, Junior Researcher in the Department of Vibropneumatic Transport Systems and Complexes, M.S. Polyakov Institute of Geotechnical Mechanics under the National Academy of Sciences of Ukraine (IGTM, NASU), Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

Zhevzhyk Oleksandr Vladyslavovych, Candidate of Technical Sciences (Ph.D), Associate Professor, Senior Researcher in Department of Department of Vibropneumatic Transport Systems and Complexes, M.S. Polyakov Institute of Geotechnical Mechanics under the National Academy of Sciences of Ukraine (IGTM, NASU), Dnepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

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