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Tytuł artykułu

Assessment of the Destruction Degree of the Quartz Matrix in the REGMAS Reclaimer

Treść / Zawartość
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Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The results of investigations of the influence of operation parameters of the prototype vibratory REGMAS reclaimer on matrix grains refinement (destruction) are presented in the paper. Fresh quartz sand ‘Szczakowa’ –1K 0.40/0.32/0.20, J88, >1400oC, WK= 1.20 was subjected to the treatment. Examinations were performed in three stages differing in the frequency of electrovibrators operations (which was: 40 Hz, 50 Hz and 60 Hz). For each frequency two settings of the exciting force of the rotodynamic drives were applied. They were equal 42% and 75% of the maximal exciting force. The sand batch placed in the bottom part of the REGMAS reclaimer was, in individual stages, subjected to elementary operations of grinding, rubbing and crushing. The destruction ratio was determined by means of the classic sieve analysis and grain size analysis performed in the Analysette 22NanoTec apparatus.
Rocznik
Strony
17--22
Opis fizyczny
Bibliogr. 12 poz., fot., rys., tab., wykr.
Twórcy
  • AGH- University of Science and Technology, Faculty of Foundry Engineering, Department of Foundry Processes Engineering, Reymonta 23 St., 30-059 Crakow, Poland
autor
  • AGH University of Science and Technology, Faculty of Foundry Engineering, Department of Foundry Processes Engineering, Reymonta 23 St., 30-059 Crakow, Poland
Bibliografia
  • [1] Zimnawoda H.W. (1956). Dry reclamation of foundry sand. Foundry Vol. 84, No. 3, (pp. 114-120).
  • [2] Boenisch D. (1990). Reclamation of spent sands containing bentonite. Guidelines for an economical leading to minimized waste. Giesserei 77, No. 19, , pp. 602-609, and also AFS International Sand Reclamation Conference, Conference Proceedings, Novi/MI, March 1991, p. 211.
  • [3] Tilch W. (1995). Mechanical reclamation of used moulding sand containing bentonite. International Conference "Modern technologies for foundry - the protection of the environment", 6-8 września, (p. 24 – 36) Kraków.
  • [4] Leidel D.S. (1994). The influence of sand and binders on reclaimability. Foundry Trade Journal, Issue 3497, Vol. 168, , pp. 384-387.
  • [5] Dańko R. (2007). Development of energetic model for dry mechanical reclamation process of used foundry sands. International Journal of Cast Metals Research., Vol. 20 No. 4 p. 228÷232.
  • [6] Dańko R. (2006). Theoretical and technical backgrounds of optimum choice of the dry reclamation process for used moulding sands. PH. D. Thesis, Department of Foundry Engineering, AGH. (in polish).
  • [7] Łucarz M. (1996). Elaboration of the construction of the centrifugal reclaimers for molding sands. PH. D. Thesis, Department of Foundry Engineering, AGH. (in polish).
  • [8] Dańko J., Dańko R., Holtzer M., Skrzyński M. (2013). Reclamation of spent moulding sand in the vibratory reclaimer REGMAS 1,5 Przegląd Odlewnictwa 63(1,2), 36-40.
  • [9] Dańko J., Dańko R., Holtzer M., Matuszewski K. (2012). Archives of Foundry Engineering 12 (spec. iss.1), 15-20.
  • [10] Danko J., Holtzer M., Danko R., Holtzer G., Kuźmin J., Matuszewski K., Przybyla K., (2014). The device for vibratory reclamation of used up foundry sands. Patent Application Publication US2014/0027549 A1.
  • [11] Zawada J. (1998). Introduction to mechanical crushing processes. Publisher Institute of Technology and Machine Operation, Radom (in polish).
  • [12] Rittinger P. (1867). Lehrbuch der Aufbereitungskunde. Verlag von Ernst & Korn, Berlin.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-eb65f682-45c6-4074-9b7b-f5f04cdf3fc3
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