PL EN


Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników
Tytuł artykułu

New method for increase in product fineness in stirred mills

Wybrane pełne teksty z tego czasopisma
Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Nowadays, ultrafine product particles size (<20 mm) is more demanded for various indus-tries. However, the problem in achieving the target product fineness in the stirred milling exists. To solve this problem, new method of the grinding process in stirred mills is proposed and investigated in this paper. The method implies increase in grinding balls collision energy in the radial and axial directions by introducing the ellipsoidal stirrer and the unbalanced drive with the spring elements, respectively, to the typical design of stirred mill. Description of the collision forces and collision energies calculation in the radial and axial directions is presented. Efficiency of the new method has been investigated and approved by mathematical modeling and experimental studies. It has been proved that joint increase in collision energy in the radial and axial directions allows to obtain finer product particles size with spending less processing time.
Rocznik
Strony
768--778
Opis fizyczny
Bibliogr. 22 poz., fot., rys., tab., wykr.
Twórcy
  • D. Serikbayev East Kazakhstan State Technical University, 19, Serikbayev str., Ust-Kamenogorsk, Kazakhstan
  • D. Serikbayev East Kazakhstan State Technical University, 19, Serikbayev str., Ust-Kamenogorsk, Kazakhstan
Bibliografia
  • [1] F. Shi, R. Morrison, A. Cervellin, F. Burns, F. Musa, Comparison of energy efficiency between ball mills and stirred mills in coarse grinding, Miner. Eng. 22 (2009) 673–680.
  • [2] O. Altun, H. Benzer, U. Enderle, The effects of chamber diameter and stirrer design on dry horizontal stirred mill performance, Miner. Eng. 69 (2014) 24–28.
  • [3] S. Mende, F. Stenger, W. Peukert, J. Schwedes, Mechanical production and stabilization of submicron particles in stirred media mills, Powder Technol. 132 (2003) 64–73.
  • [4] F. Stenger, S. Mende, J. Schwedes, W. Peukert, Nanomilling in stirred media mills, Chem. Eng. Sci. 60 (2005) 4557–4565.
  • [5] C. Jayasundara, R. Yang, A. Yua, J. Rubenstein, Effects of disc rotation speed and media loading on particle flow and grinding performance in a horizontal stirred mill, Int. J. Miner. Process. 96 (2010) 27–35.
  • [6] A. Racz, B. Csoke, Application of the product related stress model for product dispersity control in dry stirred media milling, Int. J. Miner. Process. 157 (2016) 28–35.
  • [7] M. Becker, A. Kwade, J. Schwedes, Stress intensity in stirred media mills and its effect on specific energy requirement, Int. J. Miner. Process. 61 (2001) 189–208.
  • [8] M. Riley, S. Pinkney, S. Blackburn, N. Rowson, Spatial distributions of media kinetic energy as measured by positron emission particle tracking in a vertically stirred media mill, Miner. Eng. 98 (2016) 177–186.
  • [9] A. Kim, M. Doudkin, A. Vavilov, G. Guryanov, New vibroscreen with additional feed elements, Arch. Civil Mech. Eng. 17 (2017) 786–794.
  • [10] N. Surashev, M. Doudkin, D. Yelemes, A. Kalieva, The planetary vibroexciter with elliptic inner race, Adv. Mater. Res. 694–697 (2013) 229–232.
  • [11] G. Guryanov, S. Baigereyev inventors; assignee. Device for fine grinding materials. Innovative Patent of the Republic of Kazakhstan. No. 33204. October 26, 2018.
  • [12] J. Stryczek, M. Banas, J. Krawczyk, L. Marciniak, P. Stryczek, The fluid power elements and systems made of plastics, Proc. Eng. 176 (2017) 600–609.
  • [13] G. Landsberg, Elementary Textbook of Physics, 1st ed., Fizmatlit, Moscow, 2001.
  • [14] S. Bernotat, Vibration mill results in the light of stress intensity and number of stressing events, Int. J. Miner. Process. 74 (2004) 119–122.
  • [15] B. Abdeev, S. Baigereyev, G. Guryanov, Generalized dynamic theory of a solid particle grinding by pulse-force compression with two non-deformable balls, PNRPU Mech. Bull. 4 (2018) 278–289.
  • [16] H. Hertz, Die Prinzipien der Mechanik, Leipzik J.A. Barth, 1894.
  • [17] I. Shtaerman, Contact Problem of the Elasticity Theory, Gostekhizdat, Moscow, 1949.
  • [18] G. Guryanov, B. Abdeev, Y. Klimenko, Applied grinding model of a solid particle with simple shape on impact with a hard surface, PNRPU Mech. Bull. 1 (2018) 110–120.
  • [19] M. Mankosa, G. Adel, R. Yoon, Effect of media size in stirred media mill grinding of coal, Powder Technol. 49 (1986) 75–82.
  • [20] C. Jayasundara, R. Yang, A. Yu, Effect of the size of media on grinding performance in stirred mills, Miner. Eng. 33 (2012) 66–71.
  • [21] N. Belyaev, Strength of Materials, Science, Moscow, 1965.
  • [22] J. Stryczek, P. Antoniak, M. Banas, An idea of the electric control system for the multifunctional hydraulic machine, J. Vibroeng. 12 (2010) 329–332.
Uwagi
PL
Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020)
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-82318d37-7cd9-4bc6-a826-eb7fac616ed5
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.