Author 1:
Name & Surname: Galkin V. I.
Company: College of Mining, National University of Science and Technology — MISiS (Moscow, Russia)
Work Position: Head of Department
Scientific Degree: Professor, Doctor of Engineering Sciences
Contacts: kafgmt@msmu.ru

Author 2:
Name & Surname: Sheshko E. E.
Company: College of Mining, National University of Science and Technology — MISiS (Moscow, Russia)
Work Position: Professor
Scientific Degree: Candidate of Engineering Sciences

Author 3:
Name & Surname: Sazankova E. S.
Company: College of Mining, National University of Science and Technology — MISiS (Moscow, Russia)
Work Position: Senior Lecturer
Scientific Degree: Candidate of Engineering Sciences

The paper discusses energy-saving belts reducing energy demand of belt conveyors by 40%. The heat-resistant belts, keeping carcass of belts out of burning, allow conveying hot materials at a temperature to +399 ºС. Design features of such belts are presented. Furthermore, the authors describe design and fabricating characteristics of belts for tubular belt conveyors. The role of elasticity and strength characteristics of belts in substantiation of parameters for pressure-belt high-angle conveyors is shown. It is highlighted that modern rubber fabric and steel cord conveyor belts enable engineering of special high-capacity conveyors with low energy requirement. The information presented in the article allows drawing the following conclusions:
1. Equipment of long high-capacity conveyors (more than 1000 m long) with energy-saving belts, possessing lower viscoelastic properties of the material backing of service belt, reduces energy consumption of conveyor drive by 40%;
2. Use of heat-resistant belts in metallurgical and cement industries, which eliminate burning of carcass of belt owing to special coating rubber and heat-resistant cushion layer, allows transportation of hot materials with a temperature up to +399 ºС and, thereby, extension of application range of belt conveyors;
3. By varying longitudinal elasticity modulus of steep conveyor with pressure belt, it is possible to reduce radius of transition section of the conveyor and to avoid undesired stress and strains of the conveyor belt elements;
4. Under different longitudinal strains of load-carrying and pressure belts of steep conveyor, it is possible that pressure belt slides on loaded material, which negatively affects positioning of load on the belt due to action of friction forces and adds to wear of the load-carrying belt. This can be avoided or mitigated by selecting longitudinal elasticity moduli of load-carrying and pressure belts, which suggests availability of wide variety of the moduli.

1. Pr1. DIN 22123. Conveyor belts. Indentation rolling resistances of conveyor belts related to belt width. Requirements, testing (German National Standard). Published: January 10, 2012
2 PHOENOCORD^® EOB. Special Conveyor Belt. Available at: http://www.phoenix-conveyorbelts.com/pages/products/special-belts/phoenocord-eob/phoenocord-eob_en.html (accessed: June 3, 2015).
3. Energy Saving Belt. Bridgestone Super Low Loss Belt. Operating Toward a Green Environment by Reducing Power Consumption. Available at: http://www.bridgestone.com/products/diversified/conveyorbelt/products/energy_saving_belt.html (accessed: June 3, 2015).
4. Conveyor Solution. Trellex Conveyor Belts with textile reinforcement. Brochure No. 2516–04–0 MBL. Trolleborg-Russian. Metso. November 2010. Printed in Sweden.
5. Brochure No.1805-05-04-WPC. Trelleborg-English. Metso Minerals.2004. Printed in Sweden.
6. DIN EN ISO 703 03.08. Conveyor belts. Transverse flexibility (troughability). Test method (ISO 703:2007). German version. EN ISO 703:2007 (8) /FABERG co-author/
7. CONTI® PIPE – High-Speed Pipe Conveyor Belts. Closed-Trough Belt Conveyor Systems for especially tight curves and high productivity. Available at: http://www.contitech.de/pages/produkte/transportbaender/cbgindustry/rollgurtfoerderer_en.html (accessed: June 3, 2015).
8. Shemetov P. A., Sanakulov K. S. Razvitie tsiklichno-potochnoy tekhnologii na osnove krutonaklonnykh konveyerov v glubokikh karerakh (Development of cyclical and continuous method on the basis of sharply inclined converters in deep open pits). Gornyi Zhurnal = Mining Journal. 2011. No. 8. pp. 43–52.
9. Dos Santos J. A. Sandwich Belt High Angle Conveyors According to the Expanded Conveyor Tehnology. Bulk Solids handling. 2000. Vol. 20. No. 1.
10. Atakulov L. N. Opredelenie ratsionalnykh parametrov perekhodnogo uchastka krutonaklonnogo konveyera s prizhimnoy lentoy (Definition of rational parameters of transition site of sharply-inclined converter with pressure belt). Gornoe oborudovanie i elektromekhanika = Mining equipment and electromechanics. 2007. No. 8. pp. 42–44.
11. Sheshko E. E., Kasatkin A. A. Vliyanie napryazhenno-deformirovannogo sostoyaniya lent krutonaklonnogo konveyera s prizhimnoy lentoy na ego rabotosposobnost (Influence of stress-strain state of belts of sharply-inclined converter with pressure belt on its working capacity). Gornyi Zhurnal = Mining Journal. 2009. No. 1. pp. 79–82.