Alikulov Sh. Sh. – Navoiy State Mining Institute, Navoiy, Republic of Uzbekistan. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Integral effect of physical-chemical methods on the intensity of leaching process has been investigated – electrical effect
on the leached body and working solutions entering to it. Influence with alternating electrical current is focused on
desorption of incoherently bound water from the surface of capillars and clay admixture strengthening in sandy-clay ores
in order to prevent it from heaving and redeposition in the shape of colmataging precipitations. The effects from electric
influence contribute to the rise of rock permeability in in-filter zone and increase in average capacity of wells in 25–75%.
The essence of physical effect of sandy-clay rocks permeability increase when passing alternating electrical current
resides in separation of clay fraction of bound water rock, therefore efficient pores cross-section increases. In addition,
as compared to continuous current, alternating current influences water which is immobilized by gels, which colmatage
pore space. Rock clay fracture also forms thixotropic (gel-like) structure under contact with sulphuric acid because of
crystal cement clay dilution and softening.

Key words: uranium leaching; influence with alternating electrical current; filtration coefficient; diffusion rate; uranium
content; ore deposits primary mining; product solution; working solution.

REFERENCES
1. Koshkolda K. N., Pimenov M. K., Atakulov T. Puti intensifikatsii podzemnogo vyshchelachivaniia. Pod obshch. red.
N. I. Chesnokova [The ways of subsoil leaching intensification. Edited by N. I. Chesnokov]. Moscow, Energoatomizdat
Publ., 1983. 224 p.
2. Arsh E. Primenenie tokov vysokoi plotnosti v gornom dele [High density currents use in mining]. Moscow, Nedra
Publ., 1967. 312 p.

MISSION OF THE JOURNAL

The mission of the journal is to support readers' interest in original research and innovative approaches in the field of a set of problems in mining science and mining education, which contribute to the dissemination of the best domestic and foreign scientific achievements and practical achievements in these areas.

GOALS

development of new knowledge in the field of mining science;
lighting and drawing attention to the complex of urgent problems of mining sciences;
dissemination of information on cutting-edge research in these areas;
providing an opportunity for scientists, teachers, specialists, graduate students to state their vision and ways to solve the current complex of problems in mining science and education;
coverage of the results of research and teaching activities of Russian and foreign experts on a range of topical problems of mining;
exchange of the latest research results in the field of mining and processing of minerals.

TASKS

provision of pages for the publication of the results of fundamental and applied research in various areas of mining science in all its diversity;
assistance to young scientists in the preparation of high-quality publications on the topical range of problems in mining science;
informing specialists and the public about current trends in the field of research and improvement of technological processes in mining, on issues of economics, ecology, safety, problems of higher education in this industry;
drawing attention to the most relevant promising and interesting areas of scientific research on the subject of the journal;
increasing the accessibility and openness of the magazine in Russia and abroad;
entry into international databases.

THE TARGET AUDIENCE OF THE JOURNAL covers representatives of the expert community, scientists, university teachers, graduate students, students, enterprise specialists interested in the complex of urgent problems of mining science and education.

Kochetkov V. P., Kurochkin N. S. – Khakassia Technical Institute, Branch of Siberian Federal University, Abakan,
the Russian Federation. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

The article examines the automated asynchronical electric drive of mining equipment by the example of an excavating
machine EKG-8I, the working cycle of which is connected to hard exploitation conditions: high dust concentration,
intermittent operation, bumps, vibrations, high turn-on frequency varying within wide limits by load at engine shaft;
this has a negative impact both on the quality and quantity of rock production output, and the condition of mining machines
116 «Известия вузов. Горный журнал», № 1, 2017 ISSN 0536-1028
at large. The article examines electric drive of rotating gear with alternating optimal control system, which represents
internal contour of rotor flux linkage, calculated with the method of “engineering optimum” and analytically designed
optimal regulator of external coordinates over the current of stator and engine speed, situated in direct channel of control
system. In order to examine electric drive imitation model is created with MATLAB program Simulink package. Coefficient
change under feedback over the engine current and the speed of the first mass influences transient time and excavating
machine automated electric drive rotation elastic moment. The influence of weighting coefficients of optimality criterion on
the dynamics of electric drive in starting mode is examined; the algorithm of weighting coefficients selection is suggested.
The results of the examination have revealed the advantage of optimal integrated systems of controlling excavating
machine rotation asynchronical electric drive and the possibility of its application with the preservation of all the advantages
of asynchronical electric drive.

Key words: mining equipment; automated electric drive; integrated optimal control system; analytically designed optimal
regulator.

REFERENCES
1. Kochetkov V. P. Osnovy teorii upravleniia [The fundamentals of control theory]. Rostov-on-Don, Feniks Publ.,
2012. 411 p.
2. Kliuchev V. I. Ogranichenie dinamicheskikh nagruzok elektroprivoda [Restricting dynamic loads of electric drive].
Moscow, Energiia Publ., 1973. 320 p.
3. German-Galkin S. G. Matlab & Simulink. Proektirovanie mekhatronnykh sistem na PK [Matlab & Simulink.
Designing mechatronic systems on PC]. St. Petersburg, KORONA-Vek Publ., 2008. 368 p.
4. Kochetkov V. P., Tsuglenok N. V., Kurochkin N. S. [Asynchronical drive dynamics investigation]. Vestnik
KrasGAU – The Bulletin of KrasSAU, 2013, no. 7, pp. 248–255. (In Russ.)
5. Kochetkov V. P., Kurochkin N. S., Volkova I. S., Vladimirova L. V. Issledovanie mnogomassovoi elektromekhanicheskoi
sistemy elektroprivoda ekskavatora: mater. mezhd. molodezhn. nauch.-prakt. konf. [Proc. Int. Youth Sci.-to-Pract. Conf.
“The investigation of multimass electromechanical system of excavating machine electric drive”] Minsk, 2015,
pp. 75–79.
6. Kvakernaak Kh., Sivan R. Lineinye optimal'nye sistemy upravleniia [Linear optimal control systems]. Moscow,
Mir Publ., 1977. 650 p.
7. Kochetkov V. P., Kurochkin N. S. [The dynamics of automated electric drive with integrated optimal control system].
Vestnik SibGAU – Vestnik SibGAU, 2016, vol. 17, no. 2, pp. 393–402. (In Russ.)
8. Kochetkov V. P., Kochetkov M. V., Kurochkin N. S., Kravchenko I. E. Ustroistvo upravleniia elektroprivodom
ekskavatora [Excavating machine electric drive control unit]. Patent RF, no. 155344, 2015.

Kazakov B. P., Mal'tsev S. V., Semin M. A. – Institute of Mining of UB RAS, Perm, the Russian Federation.
E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Simultaneous operation parameters optimization technique for several main ventilation installations in mine ventilation
network is introduced over the criterion of minimum energy consumption. This technique allows automating the process
of designing energy-effective systems of mine ventilation of complex topology. At first, mathematical setting of the problem
of ventilation system parameters optimization is fulfilled. In order to analyze the problem’s alternatives, influence matrix is
additionally introduced, which allows estimating the influence of each ventilation installation on the consumption of air in
all working areas. With the use of the given matrix functional shape of master equations for ventilation installations
rotation frequency is determined. Then, the simplest possible functional type of master equations with linear proportional
108 «Известия вузов. Горный журнал», № 1, 2017 ISSN 0536-1028
link is examined. Master equations obtained are realized in the system of computer algebra Wolfram Mathematica 10.0
in the algorithm of several main installations working parameters optimization over the criterion of MFU (Main Fan Unit)
total input power minimization.

Key words: mathematical model; parameters optimization; main ventilation installation; energy-efficient mode of aeration;
mines of complex topology; mine ventilation network; total input power minimization.

REFERENCES
1. Kazakov B. P., Levin L. Iu., Shalimov A. V. [Efficiency improvement of energy saving ventilation systems for
underground mines]. Gornyi Zhurnal – Mining Journal, 2014, no. 5, pp. 26–28. (In Russ.)
2. Kazakov B. P., Isaevich A. G., Mal'tsev S. V., Semin M. A. [Automated data processing of air-depression survey to
build correct mathematical model of mines ventilation network] Izvestiya vysshikh uchebnykh zavedenii. Gornyi
zhurnal – News of the Higher Institutions. Mining Journal, 2016, no. 1, pp. 22–30. (In Russ.)
3. Mal'tsev S. V. [Development of mine ventilation system of complex topology models construction on the basis of
air-depression survey data processing automation]. Strategiia i protsessy osvoeniia georesursov – Strategy and the
Processes of Georesources Exploitation, 2015, issue 13, pp. 277–280. (In Russ.)
4. Kozyrev S. A., Osintseva A. V., Amosov P. V. Metod optimizatsii razmeshcheniia reguliatorov v ventiliatsionnoi seti
rudnika [Optimization technique of regulators location in mine ventilation network]. Germany, Saarbrucken, LAP
LAMBERT Publ., 2015. 136 p.
5. Kruglov Iu. V. Teoreticheskie i tekhnologicheskie osnovy postroeniia sistem optimal'nogo upravleniia provetrivaniem
podzemnykh rudnikov: dis. ... d-ra tekhn. nauk [Theoretical and technological fundamentals of underground mines
optimal aeration control systems construction. Dr. eng. sci. diss.]. Perm, 2012. 341 p.
6. Osintseva A. V. Optimizatsiia razmeshcheniia reguliatorov vozdukhoraspredeleniia v ventiliatsionnoi seti podzemnogo
rudnika na osnove analiza vzaimosviazi parametrov seti i primeneniia geneticheskogo algoritma: dis. ... kand. tekhn.
nauk [Air distribution regulators location optimization in ventilation network of underground mine on the basis of
analysis of network parameters and genetic algorithm application interrelation. Dr. eng. sci. diss.]. Apatity,
2011. 129 p.
7. Puchkov L. A., Bakhvalov L. A. Metody i algoritmy avtomaticheskogo upravleniia provetrivaniem ugol'nykh shakht
[Techniques and algorithms of automated control over coal mines aeration]. Moscow, Nedra Publ., 1992. 399 p.
8. Zaitsev A. V., Kazakov B. P., Kashnikov A. V. and others. Analiticheskii kompleks “AeroSet'” [Analytical complex
“Aeroset”]. Program for ECM, no. 2015610589, 2015.
9. Giprougol – shaft ventilation. Official website. Available at: http://www.giprougol.ru/technologies/software/ventsh
(access date 6th May, 2016) (In Russ.)
10. Vuma Software. Official website. Available at: http://www.vuma.co.za (access date 29th February, 2016).
11. Kruglov Iu. V., Semin M. A. [Development of optimal control algorithm for ventilation networks of complex
topology aeration]. Vestnik Permskogo natsional'nogo issledovatel'skogo politekhnicheskogo universiteta. Geologiia.
Neftegazovoe i gornoe delo – Proceedings of Perm National Research Polytechnic University. Geology. Oil and Gas,
and Mining, 2013, no. 9, pp. 106–115. (In Russ.)
12. Ivanovskii I. G. Shakhtnye ventiliatory [Shaft ventilators]. Vladivostok, Izd-vo DVGTU Publ., 2003. 196 p.