Reducing the energy consumption of the conveyor transport system of mining enterprises

Abstract

The article deals with the actual issue of reducing the energy consumption of the mining enterprises conveyor transport system. The analysis of 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. 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. It has also 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 conveyor transport systems.

Improvement of methods for description of a three-bunker collection conveyor

“…As a limitation of this study, we should mention the assumption of a constant belt speed of individual sections in the synthesis of optimal control algorithms (9). When synthesizing the control algorithm, the control quality criterion (10) was used, which ensures maximum performance when the accumulating tank is filled. The requirement to minimize energy costs (27) for material transportation has narrowed the range of admissible controls.…”

“…Constant requirements for increasing the competitiveness of mining production substantiate the relevance of scientific topics devoted to building models of the transport system for the synthesis of algorithms for optimal control of the flow parameters of the transport conveyor. To reduce the transport costs of a conveyor section, algorithms have been developed for optimal control of the belt speed [6][7][8] and the input material flow [9][10][11] taking into account the energy management methodology [12][13][14]. The use of research results at existing enterprises allows reducing the cost of mining and decreasing carbon dioxide emissions into the atmosphere [15].…”

Mathematical model of a long-distance conveyor

“…This leads to a non-uniform distribution of the material along the transport route (DIN _________ 22101:2002(DIN _________ 22101: -08, 2002. At the same time, specific energy consumption for rock transportation can significantly increase due to a decrease in the loading factor of the conveyor with material (Semenchenko et al 2016;Kiriia et al 2019). The low linear density of some conveyors cannot be compensated by an increase in linear density on other sides due to the maximum ultimate specific load limitations on the belt and the power of the electrical drives.…”

Development of a method for calculating statistical characteristics of the input material flow of a transport conveyor

“…Increasing the efficiency of a belt conveyor is directly related to reducing the cost of transporting bulk material, which constitutes a significant part of the cost of material extraction [5]. A common way to reduce transport costs is to increase the loading factor of a belt conveyor with bulk material, based on the use of belt speed control systems [6,7] and the amount of material flow coming from the accumulating bunker [8][9][10]. When designing control systems for the flow parameters of a transport system, one of the problems is the calculation of the statistical characteristics of the input material flow.…”