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Influence of the Process Treatment on the Amount and Grain Structure of After Reclamation Dusts

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EN
Abstrakty
EN
The analysis of after reclamation dusts generated during the reclamation treatment of test portions of two kinds of polydispersive material in the Regmas device, is presented in the hereby paper. For the comparative purpose the fresh moulding sand marked as quartz sand „Sibelco” –1K 0.40/0.32/0.20, J88, >14000C, WK = 1.20 (acc. PN-83/H-11077), as well as the spent moulding sand, which was previously subjected to the primary reclamation and to dedusting, were used. Conditions of the process treatment were forced by the frequency of supplying the vibratory drive motors being successively 40, 50 and 60Hz for 5, 10 and 15 min. and by causing a diversified material flow through the functional system of the device (charging hopper, abrasive chamber acting as a buffer space). Two states of the process treatment, when a material was flowing through the chamber, were applied. In the first one, an intergranular surface abrasion of grains occurred as a result of the granular material circulation in the chamber forced by the vibratory drive. In the second one, the forced material flow was performed in the presence of crushing elements (steel balls), additionally introduced into the abrasive chamber. Analyses of the device influence were performed by determinations of the amount of dusts separated in the pneumatic classifier and analysis of their grain sizes by means of Analysette 22NanoTec.
Rocznik
Strony
71--78
Opis fizyczny
Bibliogr. 12 poz., rys., tab., wykr.
Twórcy
  • AGH – University of Science and Technology, Faculty of Foundry Engineering, Kraków, Poland
Bibliografia
  • [1] Act of 29 December 2014 on the waste catalog. (2014). Journal of Laws of the Republic of Poland. Retrieved May 30, 2019, from http://prawo.sejm.gov.pl/isap.nsf/ download.xsp/WDU20140001923/O/D20141923.pdf. (in Polish).
  • [2] Pezarski, F., Maniowski, Z. & Izdebska-Szanda, I. (2004). Practical aspects of the sand regeneration process from used molding and core sands. Archives of Foundry. 4(13), 171-176. (in Polish).
  • [3] Holtzer, M., Danko, R. & Zymankowska-Kumon, S. (2012). Foundry industry - current state and future development. Metalurgija. 51(3), 337-340.
  • [4] Danko, R. (2013). Criteria for an advanced assessment of quality of moulding sands with organic binders and reclamation process products. China Foundry. 10(3).
  • [5] Joseph, M.K., Banganayi, F. & Oyombo, D. (2017). Moulding Sand Recycling and Reuse in Small Foundries. Procedia Manufacturing. 7, 86-91. DOI:10.1016/ J.PROMFG.2016.12.022.
  • [6] Danko, R., Holtzer, M. & Danko, J. (2014). Investigations of physicochemical properties of dusts generated in mechanical reclamation process of spent moulding sands with alkaline resins. China Foundry. 11(2), 132-138.
  • [7] Li, Y., Wang, T. & Liu, W. (2018). Research on regeneration methods of animal glue waste sand for foundry. Royal Society Open Science. 5(5).
  • [8] Khan, M.M., Singh, M., Mahajani, S.M., Jadhav, G.N. & Mandre, S. (2018). Reclamation of used green sand in small scale foundries. Journal of Materials Processing Technology. 255, 559-569. DOI:10.1016/j.jmatprotec. 2018.01.005.
  • [9] Kamińska, J., Basińska, E., Angrecki, M., & Palma, A. (2018). Effect of mechanical reclamation cycle on strength parameters of loose self-hardeningsands based on furfuryl resin. Archives of Metallurgy and Materials. 63(4), 1843-1846. doi:10.24425/amm.2018.125113.
  • [10] Szlumczyk, H., Janerka, K. & Szajnar, J. (2008). Analysis of the processes in pneumatic moulding sand reclamation. Archives of Foundry Engineering. 8(2), 137-140.
  • [11] Szlumczyk, H. (2005). Analysis of two-phase stream motion in a linear regenerator. Archives of Foundryes. 5(15), 387-396.
  • [12] Łucarz, M. (2014). Thermal reclamation of the used moulding sands. Metalurgija. 54(1), 109-112.
  • [13] Sappinen, T., Orkas, J. & Kronqvist, T. (2018). Thermal Reclamation of Foundry Sands Using Repurposed Sand Dryer Equipment. Archives of Foundry Engineering. 18(4), 99-102.
  • [14] Kaczmarska, K., Grabowska, B. & Łucarz, M. (2014). Thermal Reclamation Process of the Spent Moulding Sand with the Polymer BioCo2 Binder. Archives of Foundry Engineering. 14, (spec.3) 90-94.
  • [15] Łucarz, M. (2015). Setting temperature for thermal reclamation of used moulding sands on the basis of thermal analysis. Metalurgija. 54(2), 319-322.
  • [16] Łucarz, M. (2015). Ecological aspects of the performed thermal reclamation. Archives of Metallurgy and Materials. 60(1), 329-333. doi:10.1515/amm-2015-0054.
  • [17] Łucarz, M. (2018). Method of selecting the reclamation temperature of spent moulding sands with organic binders. Archives of Foundry Engineering. 18(1), 65-70. DOI:10.24425/118813.
  • [18] Dereń, M., Łucarz, M., Roczniak, A. & Kmita, A. (2017). Influence of Reclamation Process on the Ecological Quality of Reclaim Sand. Archives of Foundry Engineering. 17(4), 43-46. DOI:10.1515/afe-2017-0128.
  • [19] Balbay, S. (2019). Recycling of waste foundry sands by chemical washing method. China Foundry. 16(2), 141-146.
  • [20] Dańko, R., Holtzer, M., Kmita, A., Żymankowska-Kumon, S., Kubecki, M., Skrzyński, M. (2015). Influence of the regenerate addition on the quality of castings and harmfulness of new generation molding and core sands. Kraków: Wydawnictwo Naukowe AKAPIT. (in Polish).
  • [21] Ribeiro, M.G. & Filho, W.R.P. (2006). Risk assessment of chemicals in foundries: The International Chemical Toolkit pilot-project. Journal of Hazardous Materials. 136(3), 432-437. DOI:10.1016/J.JHAZMAT.2006.01.019.
  • [22] Holtzer, M., Bobrowski, A., Dańko, R., Żymankowska-Kumon, S. & Kolczyk, J. (2013). Influence of a Liquid Metal Temperature on a Thermal Decomposition of a Phenolic Resin. Archives of Foundry Engineering. 13(2), 35-38. DOI:10.2478/afe-2013-0032.
  • [23] Pytel, Z. (2012). Characteristic of ceramic materials obtained with used moulding sands containing organic binders Abstract. Archives of Foundry Engineering. 12(spec.1), 153-162.
  • [24] Dańko, J., Kamińska, J. & Skrzyński, M. (2013). Reclamation of spent moulding sands with inorganic binders in the vibratory reclaimer REGMAS. Archives of Metallurgy and Materials. 58(3), 993-996. DOI:10.2478/amm-2013-0117.
  • [25] Dańko, J., Dańko, R. & Skrzyński, M. (2015). Used furan sand reclamation in REGMAS vibratory unit. Archives of Foundry Engineering. 15(3), 25-28.
  • [26] Skrzyński, M. & Dańko, R. (2016). Influence of the Reclamation Process Intensity in the REGMAS Reclaimer on the Purification Degree of the High-silica Matrix. Archives of Foundry Engineering. 16(1), 69-72.
  • [27] Kowal, J., Dańko, J. & Stojek, J. (2013). Quantitative and qualitative methods for evaluation of measurement signals on the example of vibration signals analysis from the corps of prototype reclaimer REGMAS. Archives of Metallurgy and Materials. 58(3), 827-831. DOI:10.2478/amm-2013-0080.
  • [28] Skrzyński, M. (2017). Analysis of the initial phase and the actual working cycle of the REGMAS universal vibrating regenerator. Kraków: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. (in Polish).
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-c008cb82-c796-458d-8a46-f9342431f834
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