FINDINGS OF INVESTIGATIONS ON INTERACTION BETWEEN THE LUMPY ROCKS AND ROLLERS OF VIBRATING SCREEN

Details

Parent Category: Geo-Technical Mechanics, 2013

Category: Geo-Technical Mechanics, 2013, Issue 109

UDC 622.74.913.1

Authors:

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

V.F. Yagniukov, Ph.D. (Tech.), Junior Researcher,

I.V. Yagniukova, M.Sc. (Tech.)

(IGTM NAS of Ukraine)

Abstract.

 There are the results of investigations of lumpy mined rock and the roller of vibrating classifier interaction given. The analysis of this interaction and the analytical expressions for the calculation of the impact pulse and the impact force is implemented, which allow us to determine the roller’s tension state under an impact. Previous tests of the roller classifier in industrial conditions for the separation of large-sized lumpy rock mass demonstrated that the most loaded rollers are located at the place of the rock mass receiving. Based on the weight of the falling pieces and their impact energy it became necessary to solve the problem of their interaction. Comparative analysis of the impact interaction force, directed from a lump of the rock mass to the roller during the process of transportation, was not observed because the following (force) is an order of magnitude less than the force under falling lump. There was considered the most dangerous case of central impact of the rock mass into the middle of the length of the roller

Keywords:

roller classifier, impact, lumpy rock mass, roller, impact pulse, the force of impact.

References:

1. Naduty, V.P. and Yagnjukov, V.F., M.S. Poljakov Institute of Geotechnical Mechanics under NAS of Ukraine  (2010), Valkovy klassifikator [Rolling classifier], State Register of Patents of Ukraine, Kiev, UA, Pat. № 47329.
2. Naduty, V.P. and Yagnjukov, V.F., M.S. Poljakov Institute of Geotechnical Mechanics under NAS of Ukraine  (2004), Valkovy klassifikator [Rolling classifier], State Register of Patents of Ukraine, Kiev, UA, Declarative pat. № 71721A.
3. Naduty, V.P., Yagnjukov, V.F. and Prokopishin, L.N. (2003), "Definition of influence of design data vibrating rolling classifier on technological parameters", Visnyk Natsionalnoho tekhnichnoho universytetu "Kharkivsky politekhnichny instytut", pp. 75-78.
4. Naduty, V.P., Erpert, A.V. and Yagnjukov, V.F. (2004), "The Generalized model of work of rolling  vibrating classifier taking into account regime and design parameters", Geotekhnicheskaya Mekhanika [Geo-Technical Mechanics], no. 48, pp. 286-290.
5. Naduty, V.P. and Yagnjukov, V.F. (2003), "Results of industrial approbation of rolling vibrating screen", Vibratsiyi v tekhnitsi ta tekhnologiyakh, no. 5, pp. 55-58.
6. Markeyev, A.P. (1990), Teoreticheskaya mekhanika [The theoretical mechanics], Naukova dumka, Kiev, Ukraine.
7. Naduty, V.P., Ostapenko, V.A. and Yagnjukov, V.F. (2006), Sintez parametrov valkovykh klassifikatorov vibratsionnogo tipa [Synthesis of parameters rolling classifiers of a vibrating type], Naukova dumka, Kiev, Ukraine.

About the authors

Naduty Vladimir Petrovich,Doctor of Technical Sciences (D.Sc.), Professor, Head of Department of Geodynamic Systems and Vibration Technologies, M.S. Polyakov Institute of Geotechnical Mechanics under the National Academy of Science of Ukraine (IGTM NASU), Dnepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

Yagniukov Vladimir Fedorovich, Candidate of Technical Sciences (Ph.D.), Junior Researcher in Department of Geodynamic Systems and Vibration Technologies, M.S. Polyakov Institute of Geotechnical Mechanics under the National Academy of Science of Ukraine (IGTM NASU), Dnepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

Yagniukova Irina Vladimirovna, Engineer in Department of Geodynamic Systems and Vibration Technologies, M.S. Polyakov Institute of Geotechnical Mechanics under the National Academy of Science 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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