Analysis of effectiveness of used sands reclamation treatment - in various technological devices

• Autorzy: Dańko R.
• Języki publikacji: EN

Abstrakty

EN

The analysis of effectiveness of spent sands reclamation treatment performed in technological devices of various intensity of dry reclamation - during which used binding material is being removed from grain surfaces - is presented in the paper. Variety of reclamation influences was considered via the realization of the so called elementary operations such as: rubbing, grinding and crushing [1-5], which are realised mainly in dry mechanical reclamation devices but also appear in other technological devices for sand preparation. The model rotor reclaimer and two types of mixers used for preparing initial foundry sands with resin U 404 and hardener 100 T3 of the Hüttenes-Albertus Company were applied for tests. The theoretical model for assessing the effectiveness of reclamation treatment developed by the author [3, 4], was experimentally verified [5, 7], with the application of standard testing procedures. The model can be considered a new tool enabling the selection of optimal reclamation times for the given used sand at the assumed intensity of silica sand matrix recovery. Sand mixture of a proper composition fulfilled needed technological properties after total hardening was used as charge material in experiments. The reclamation treatment consisted of mechanical and mechanical-cryogenic reclamation performed within a wide range of times and conditions influencing the treatment intensity.

Słowa kluczowe

EN

waste management; used sand; reclamation treatment

PL

gospodarka odpadami; masa zużyta; modernizacja obróbki

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2009
• Tom: Vol. 9, iss. 4
• Strony: 31--36
• Opis fizyczny: Bibliogr. 7 poz., rys., tab., wykr.

Twórcy

autor

Dańko R.

• Faculty of Foundry Engineering, AGH University of Science and Technology, Reymonta 23 str., 30-059 Kraków, Poland,

Bibliografia

• [1] Lewandowski L.: Core and moulding sands. Warszawa 1991, Wydawnictwo Naukowe PWN.(in Polish).
• [2] Dańko J., Dańko R., Łucarz M.: Processes and Equipment for Used Sand Reclamation.. Scientific Edition ,,Akapit", ISBN 978-83-89541-88-8, 2007, 291 pp.(in Polish).
• [3] Tumidajski T.: Application of Statistic Methods in Analysis of Raw Materials Processing. Śląskie Wydawnictwo Techniczne, ,Katowice 1993. (in Polish).
• [4] Rittinger P.: Lehrbuch der Aufbereitungskunde. Ernst und Körn, Berlin 1867.
• [5] Dańko R.: Development of energetic model for dry mechanical reclamation process of used foundry sands. International Journal of Cast Metals Research. British Cast Iron Research Association. 2007 vol. 20 no. 4 s. 228-232.
• [6] Tordoff W. L., Miller J., Trembly J.: New development in sand reclamation. CIATF Technical Forum, 1999, pp. 377-386.
• [7] Leidel D. S.: The influence of sand and binders on reclaimability. Foundry Trade Journal, Issue 3497, v. 168, 1994, pp. 384-387.