Energy-saving modular units for selective coal cutting

Gabov, V. V.; Задков, Д. А.

doi:10.17580/em.2016.01.06

Cited by 10 publications

(7 citation statements)

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“…Its distinguishing feature is that it takes into account random processes of deviation from a stable level of power consumption (additive interference) associated with a violation of the technological process. The proposed algorithm for calculating the energy characteristics and energy technology profiles allows justifying and developing the energy efficiency management system taking into account their probabilistic nature [13,14].…”

Section: Methodsmentioning

confidence: 99%

Analysis and Modeling of Power Consumption Modes of Tunnelling Complexes in Coal Mines

2020

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The technological processes of mining enterprises are largely energy-intensive; therefore, studying the modes of power consumption in different sites of a mining enterprise is a relevant task, as it makes it possible to reduce current costs. The article presents the results of an experimental study of the dynamics of changes in the specific power consumption depending on per-shift indicators of extracted rock volume and the rate of mine workings penetration. The analysis of geological, technological and organizational factors affecting the efficiency of mining operations in coal mines is performed. Energy technological profiles and recommendations for assessing sustainable levels of power consumption by mechanized tunnelling complexes are given. Dynamic and predictive models of power consumption have been developed taking into account the main time trends and additive components within the limits that ensure a steady level of power consumption. Special recommendations on improving the efficiency of power consumption during mining operations are given.

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Section: Methodsmentioning

confidence: 99%

Analysis and Modeling of Power Consumption Modes of Tunnelling Complexes in Coal Mines

2020

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“…The torque is transmitted to the bankettes and worms via mechanical gear reducers from two asynchronous motors of 150 kW joint power output. Based on calculations and experimental investigation results, it was found out that hewing the ore by the chisels of the worm crushers and berm mills requires a power of maximum 70 kW [1][2][3][4]. Consequently, the main power share is consumed for loading operations making considerable resistances evident during moving of the ore hewn.…”

Section: General Information About Loading Equipmentmentioning

confidence: 99%

Efficiency improvement of loading of potassium ore by means of «Ural-20R» heading-and-winning machine

Zvonarev

Shishlyannikov

2017

IOP Conf. Ser.: Earth Environ. Sci.

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Abstract. The paper deals with certain operation features of «Ural-20R» heading-and-winning machines. It has been proven that the efficient capacity field of such excavation machines is limited by the capacity of the subsequent loading equipment: a worm conveyor and a drag-bar reclaim conveyor. The crushing of potassium rock mass by chisels of the operation devices of «Ural-20R» machines is accompanied by intensive circulation and excessive ore degradation during transportation of the rock mass by single cut worms. Intermittent feeding of the ore to the conveyor stipulates considerable framework vibrations and formation of dynamic loads on the elements of the power drive of the reclaim conveyor. When the winning machine is used in mines with negative inclination angles, the capacity of the drag bar reclaim conveyor is drastically reduced. Based on the analysis of structural features of the worms and the conveyor of «Ural-20R», technical proposals have been made as to the efficiency improvement of potassium ore loading.

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“…The common principles of intensification of selective destruction suggest the following conditions [2,3]:…”

Section: Introductionmentioning

confidence: 99%

Investigation of Layer-by-layer Destruction of Rocks in High-frequency Cone Crusher

Gabov

Romanova

2017

IOP Conf. Ser.: Earth Environ. Sci.

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Energy-saving modular units for selective coal cutting

Cited by 10 publications

References 0 publications

Analysis and Modeling of Power Consumption Modes of Tunnelling Complexes in Coal Mines

Analysis and Modeling of Power Consumption Modes of Tunnelling Complexes in Coal Mines

Efficiency improvement of loading of potassium ore by means of «Ural-20R» heading-and-winning machine

Investigation of Layer-by-layer Destruction of Rocks in High-frequency Cone Crusher

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