Kiriia R.V., Shyrin L.N. Evaluation of energy consumption of conveying transport while speed regulation of conveyor belt

Details
Parent Category: Geo-Technical Mechanics, 2019
Category: Geo-Technical Mechanics, 2019, № 144

Geoteh. meh. 2019, 144, 169-177

https://doi.org/10.15407/geotm2019.144.169

Evaluation of energy consumption of conveying transport while speed regulation of conveyor belt

1Kiriia R.V., 2Shyrin L.N.

1Institute of Geotechnical Mechanics named by N. Poljakov NAS of Ukraine, 2National Technical University “Dnipro Polytechnic”

UDC 622.647.2

Language: Russian

Abstract.

The article deals with the actual issue of reducing the energy consumption of the mining enterprises conveyor transport system. The energy loss by conveyor belt during transportation of bulk load is given. A comparative analysis of energy losses in the cases of regulation and non-regulation of the speed of the conveyor belt is given. Dependence of power of the belt conveyer drive from the size of the value of the load flow entering to the conveyor is obtained, in the cases of regulation and non-regulation of the speed of the conveyor belt. It is set thus, that with reduction of the value of the load flow entering to the conveyor, at permanent speed of belt the power of conveyer drive, expended on moving of load, are reduced, and the power of drive of conveyer, expended on moving of the belt and rotation of the rollers, does not change. And in the case of the regulation speed of the conveyer belt the power of the conveyer drive, expended on moving of the load, and also power of drive, expended on moving of the belt and rotation of rollers, decreasing simultaneously. It was found that when regulating the speed of conveyor belt in the case of reducing the value of the load flow entering to the conveyor by half the loss of electricity for the transportation of load is reduced by 30 % compared to the unregulated speed of the belt. The energy efficiency criterion of the conveyor transport system is determined, which coincides with the specific energy capacity equal to the ratio of the average energy capacity of the transportation of load to the transport system average carrying capacity. For determination of criterion of power efficiency of the conveyer transport system without bunkers and with bunkers the average dynamics methods for March processes was applied, allowing for the specified parameters of the conveyer and the bunkers volume to determine analytically using specified recurrent relations average carrying capacity and of the average energy capacity of the transportation of the conveyer transport system. It has been established that for conveyor transport systems conveyor–bunker–conveyor, taking into account the downtime of conveyor equipment while regulating the speed of conveyor, energy losses are reduced by 23 %. The research results can be used to create a computer control system for the operation of the energy efficient conveyor transport systems.

Keywords:

belt conveyer, regulation and non-regulation drive, energy consumption, specific energy capacity

References:

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About the authors:

Kiriia Ruslan Vissarionovych, Doctor of Technical Sciences (D. Sc), Senior Researcher, Senior Researcher in Department of Geomechanics of Mineral Opencast Mining Technology, Institute of Geotechnical Mechanics named by N. Poljakov NAS of Ukraine (IGTM, NASU), Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

Shyrin Leonid Nikiforovych, Doctor of Technical Science (D.Sc.), Professor, Head of the Department of Transport Systems and Technologies, National Technical University “Dnipro Polytechnic”, Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.