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V. I. Medvedkov
V. I. Medvedkov
Professor
G.V. Plekhanov Saint Petersburg Mining Institute
Professor
G.V. Plekhanov Saint Petersburg Mining Institute

Articles

Geotechnical engineering, powerengineering and automation
  • Date submitted
    2009-08-26
  • Date accepted
    2009-10-10
  • Date published
    2010-02-01

Synthesis of means supply water to waterreceiver, Driven along long face

Article preview

The pipeline from two hinge the sites located along a face, and two telescopic sites on lines is synthesised. Influence of a design of the hinge on losses of pressure and the central corner divergence of hinge sections on effort of its reduction is analysed. The diagramme of communication of width dredging strips of coal with capacity of a layer is offered at the set level of losses of pressure of water in hinge the pipeline and effort of its reduction.

How to cite: Medvedkov V.I., Trishin M.I., Sidorenko A.A. Synthesis of means supply water to waterreceiver, Driven along long face // Journal of Mining Institute. 2010. Vol. 186. p. 128-132.
Mining electromechanics
  • Date submitted
    2006-07-01
  • Date accepted
    2006-09-19
  • Date published
    2007-01-01

To calculation of parameters of drilling and anchoring installation

Article preview

Drilling and boring units, which include a hydraulic motor and anchoring mechanism, are used to attach the cutting machine. The schemes of water supply of the machine tool are analyzed and a rational variant is selected. The disadvantages of the known water motors are disclosed and the ways of their improvement are suggested. Recommendations on calculation of the parameters of the hydraulic motor, on the design of the anchoring mechanism and its calculation are developed. The result on the efficiency of light cutting machine with a new way of fixing its time is obtained.

How to cite: Medvedkov V.I., Dranov S.S., Shebin V.P. To calculation of parameters of drilling and anchoring installation // Journal of Mining Institute. 2007. Vol. № 1 170. p. 61-64.