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DUSTY WASTES FROM THE PREPARATION OF MOULDING MIXTURES AND THE PRODUCTION OF MOULDS
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Alena Pribulova; Peter Futas; Jozef Petrik; Peter Blasko; Marcela Pokusova
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10.5593/sgem2025/4.1
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1314-2704
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English
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25
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4.1
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• Prof. Dr. hab. oec. Baiba Rivza, LATVIA• Prof. DSc. Ildiko Tulbure, GERMANY• Prof. DSc. Oleksandr Trofymchuk, UKRAINE
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Particulate pollutants are generated at all stages of the preparation of the moulding and core mixture, during the handling of raw materials, during mixing and preparation of the moulding mixture in the mixers, during the moulding process itself, and during both manual and machine moulding. The reason for the generation of a relatively large amount of dust in all the operations associated with the manufacture of moulds and cores is the moulding mixture used, the basis of which is abrasive, i.e. sand, whether quartz or of a different chemical composition, e.g. chromium. The moulding compounding workplace is one of the high dust locations. The amount of dust generated depends on the equipment used as well as the type of binder system in the moulding mixture.The actual processing of the moulding mixture generates a relatively large amount of dust, especially during the transport of the material and during the various sieving operations. The experiments used dust from the moulding of castings cast in bentonite moulds, which contained 55.62% SiO2 and was collected on filters. This dust was added to the new moulding mixture, to the moulding mixute that was already circulating under semi-operating conditions in the experimental foundry at the Faculty of materials, metallurgy and recycling and to the moulding mix that was circulating in the foundry. The effect of the amount of moulding dust on the properties of the three aforementioned moulding mixtures was investigated. The results showed that the amount of dust in the moulding mixture (in the foundry) up to 4% did not have a negative effect on the quality of the castings.
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conference
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Proceedings of 25th International Multidisciplinary Scientific GeoConference SGEM 2025, Volume 25, Issue 4.1
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25th International Multidisciplinary Scientific GeoConference SGEM 2025, Volume 25, Issue 4.1, 29 June - 6 July, 2025
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Proceedings Paper
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STEF92 Technology
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International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM
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SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Russian Acad Arts; Turkish Acad Sci.
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223-230
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29 June - 6 July, 2025
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website
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10425
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dusty wastes, moulding mixture, compressive strength, splitting strength, permeability.
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