Experimental studies of the energetically effective conditions of grinding of solids

Zheng, Yu; Kuznetsova, M. M.; Ved, V. E.; Aleksina, A. A.

doi:10.1134/s1063784216050273

Cited by 3 publications

(2 citation statements)

References 2 publications

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“…The design of the new labyrinth disintegrator is less energy-intensive compared to existing disintegrators, which is confirmed by the results gained by other authors [14,15], as well as the results of grinding in terms of granulometric properties depend on some factors, the influence of which is still being researched.…”

Section: Discussionsupporting

confidence: 66%

Semi-industrial tests of a prototype of a new grinding equipment: A labyrinth disintegrator

et al. 2022

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The article provides a brief description of a prototype of a new grinding equipment – a labyrinth disintegrator, manufactured according to our developments, as well as the results of semi-industrial tests on various materials with different hardness and brittleness. A scheme for grinding the material and a dynamic scheme for moving the material through the labyrinths are presented. The results of sieve analyze of selected materials are presented, and granulometric curves for the distribution of particles of materials are constructed.

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Section: Discussionsupporting

confidence: 66%

Semi-industrial tests of a prototype of a new grinding equipment: A labyrinth disintegrator

et al. 2022

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“…Experimental studies of the grinding process in a ball drum mill performed by [21,[38][39][40] were used to support and verify the data obtained during the regression analysis.…”

Section: Obtaining Regression Equations For the Significant Parameter...mentioning

confidence: 99%

Improving the efficiency of the coal grinding process in ball drum mills at thermal power plants

Kamarova

Abildinova

Terziev

et al. 2022

EEJET

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Ensuring the reliable operation of the dust fuel preparation system at thermal power plants (TPP) is a topical issue since it determines the energy strategy of any country that fires coals for thermal energy production. This unit is one of the most energy-intensive units in TPP. Those systems are outdated, poorly automated and high energy-intensive. Furthermore, they must ensure efficient and safe operation of the facility while being environmentally friendly. The current work focuses on the process of grinding coals in ball drum mills for further pulverized combustion. An experimental study was performed in order to determine the main factors (rotational speed of the drum mill, the degree of loading with the grinding balls, and the velocity of the supplied air) that affect the efficiency of the fuel preparation system. The obtained experimental data and performed mathematical modeling resulted in regression equations describing the energy performance of the mill. Three regression equations for mill productivity, power consumed, and specific surface area of the final product were obtained and validated. The study reveals that the lowest specific energy consumption is achieved when the relative rotational speed of the mill is between 0.81 and 0.87; the weighted average diameter of the balls ranges from 33.5 up to 34.5 mm; the load factor of the grinding media ranges from 0.325 up to 0.335, the supplied air velocity is between 0.2 and 0.3 m/s. The proposed methodology allows adjustment of the operating parameters of the grinding process to achieve the lowest energy consumption. The power consumption for the preparation can be reduced up to 5 % for the selected operation mode of the grinding facility.

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The Labyrinthine Disintegrator: A New Grinding Tool

et al. 2022

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Experimental studies of the energetically effective conditions of grinding of solids

Cited by 3 publications

References 2 publications

Semi-industrial tests of a prototype of a new grinding equipment: A labyrinth disintegrator

Semi-industrial tests of a prototype of a new grinding equipment: A labyrinth disintegrator

Improving the efficiency of the coal grinding process in ball drum mills at thermal power plants

The Labyrinthine Disintegrator: A New Grinding Tool

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