Physical simulation of loaders with scooping starwheels

Otrokov, A.V.; Khazanovich, G.S.; Afonina, N.B.

doi:10.1134/s1062739115020118

Cited by 9 publications

(2 citation statements)

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“…To adjust the loading efficiency and energy consumption of the star wheel loading mechanism, Nosenko et al 12 designed a star wheel device with adjustable arm height. Otrokov et al 13,14 established the calculation formulas of loading efficiency, average resistance moment, and loading specific energy consumption through star wheel loading experiments. Xu and Mao 15 conducted a theoretical analysis on the size of the star wheel loading mechanism.…”

Section: Introductionmentioning

confidence: 99%

Determination of loading capacity index of a continuous miner in soft rock roadway and virtual test method

Zhang

You

Yan

2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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To improve the loading efficiency and reduce energy consumption of a continuous miner in soft rock roadway, a seven-arm star wheel designed with Gaussian fitting method was proposed, and a coal loading model of the continuous miner star wheel loading mechanism was reconstructed with EDEM software. The loading capacity of the seven-arm star wheel and the three-arm star wheel of the EML340 continuous miner at different working speeds were studied respectively. The scientific and reasonable identification index was formulated and the index evaluation system of loading star wheel was established. It has been found that the performance of the loading star wheel is a collection of various identification indicators, the coal returning mass reducing the loading efficiency and increasing unnecessary energy consumption, therefore, it is difficult to identify by a single index. Loading coal and rock by the star wheel is a process that consumes energy and pays attention to output, therefore, the identification index should include two kinds of efficiency parameters and energy parameters. Rake coal torque and loading specific energy consumption have reflected the degree of energy utilization, which can be comprehensively used for preliminary design of the star wheel. The performance parameters such as loading power and loading efficiency are reliable indicators for designing and performance evaluation of the star wheel. Based on the statistical analysis of the test data, compared with the three-arm star wheel of the EML340 continuous miner, the loading efficiency of the seven-arm star wheel has been significantly improved. The loading power for coal loading has been reduced by 46%. The feasibility of the Gaussian design method of loading star wheel has been verified.

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Section: Introductionmentioning

confidence: 99%

Determination of loading capacity index of a continuous miner in soft rock roadway and virtual test method

Zhang

You

Yan

2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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“…On the research trends of loading efficiency and energy consumption of continuous miner, Nosenko et al (2017) applied for a patent that can adjust the arm height of the star wheel to reach the loading efficiency and energy consumption of the adjustable feeder star wheel. Otrokov et al (2015) deduced the calculation formula of the loading efficiency and energy consumption of the star wheel without considering the traveling speed of the roadheader and taking the number of star wheel arm, structure form of the star wheel, and height of the arm as variables. Wang (2005) conducted experimental research on the parameters of the feeder star wheel of the roadheader.…”

Section: Introductionmentioning

confidence: 99%

Research on Loading Characteristics of Continuous Miner Based on Coal and Rock Particles Fluidity Effect

You¹,

Zhang²,

Li³

et al. 2020

Preprint

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The interaction mechanism between the star wheel arm and coal particles is the theoretical basis for the research of the feeder star wheel device. Based on the discrete element theory, the motion equation of coal particles in the process of coal harrowing with the feeder star wheel was established. With the aid of EDEM software, the coal model of the continuous miner with the simulation structure of coal wall, ground, feeder star wheel, and coal pile was reconstructed. The influence of the parameters includes the number of the arm of the star wheel, the height of the arm, and the inclination angle of the feeder on the loading efficiency and energy consumption of the feeder star wheel was revealed. The results have been shown that the fluidity effect of coal particles in the active zone of the material pile has been observed. The loading efficiency and torque of the feeder star wheel have been affected by this effect. The loading efficiency and energy consumption have been increased with the increase in the number of arm and height of the arm. The loading efficiency of feeder inclination angle 14° is the highest and the energy consumption is the lowest.

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Impact of Design Parameters on the Efficiency of Loading Organs with Gathering Stars of the Roadheaders

Otrokov

Khazanovich

Afonina

2018

Proceedings of the 4th International Conference on Industrial Engineering

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Physical simulation of loaders with scooping starwheels

Cited by 9 publications

References 0 publications

Determination of loading capacity index of a continuous miner in soft rock roadway and virtual test method

Determination of loading capacity index of a continuous miner in soft rock roadway and virtual test method

Research on Loading Characteristics of Continuous Miner Based on Coal and Rock Particles Fluidity Effect

Impact of Design Parameters on the Efficiency of Loading Organs with Gathering Stars of the Roadheaders

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