Thermal reclamation of foundry sands using repurposed sand dryer equipment

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Sappinen, Tommi
dc.contributor.author Orkas, Juhani
dc.contributor.author Kronqvist, Timo
dc.date.accessioned 2018-12-21T10:33:07Z
dc.date.available 2018-12-21T10:33:07Z
dc.date.issued 2018
dc.identifier.citation Sappinen , T , Orkas , J & Kronqvist , T 2018 , ' Thermal reclamation of foundry sands using repurposed sand dryer equipment ' Archives of Foundry Engineering , vol. 2018 , no. 4 , pp. 99-102 . en
dc.identifier.issn 1897-3310
dc.identifier.other PURE UUID: d20845b9-4d9a-444e-80ef-c9028f98a201
dc.identifier.other PURE ITEMURL: https://research.aalto.fi/en/publications/thermal-reclamation-of-foundry-sands-using-repurposed-sand-dryer-equipment(d20845b9-4d9a-444e-80ef-c9028f98a201).html
dc.identifier.other PURE FILEURL: https://research.aalto.fi/files/30470160/19_04_18.pdf
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/35710
dc.description.abstract One of the biggest problems for sand casting foundries must be the waste produced from disposable molds. Stricter environmental regulations make it harder to dispose of waste sand, so a truly competitive foundry does no longer only make great products, but also concentrates on a sustainable casting process. While methods for repurposing waste foundry sand are still limited, the internal circulation of such sands proves significant possibilities. This paper will focus on thermal reclamation of foundry sands in a special rotating drum furnace in a central facility to serve several foundries. Thermal reclamation is a process for handling foundry sands in elevated temperatures to combust unwanted substances from reusable base sand. The introduction focuses on background of the Finnish foundry business, the most common sand systems in Finland and their reclaim properties. The experimental part features presentation of the new reclamation plant process and the conducted test runs. The samples collected from each test run have been laboratory tested to assure proper sand quality. The results of this work showed that the reclamation of alkaline phenolic no-bake sands was excellent. Reclamation of green sands did not provide satisfactory results as expected and the reclamation of furan no-bake sands provided mixed results, as the raw material was imperfect to begin with. The most important result of this work is still the successful initiation of a centralized thermal reclamation plant, with the ability to reclaim sands of several foundries. With this all of industrial symbiosis, circular economy and sustainability advanced in Finland, and the future development of this plant provides even further opportunities and a possibility to spread the ideas on a global scale. en
dc.format.extent 4
dc.format.extent 99-102
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation.ispartofseries Archives of Foundry Engineering en
dc.relation.ispartofseries Volume 2018, issue 4 en
dc.rights openAccess en
dc.subject.other 214 Mechanical engineering en
dc.subject.other recycling en
dc.title Thermal reclamation of foundry sands using repurposed sand dryer equipment en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Production Engineering
dc.contributor.department Department of Mechanical Engineering
dc.contributor.department Timexcon Oy
dc.subject.keyword environment protection
dc.subject.keyword innovative foundry technologies
dc.subject.keyword spent foundry sands
dc.subject.keyword thermal reclamation
dc.subject.keyword industrial symbiosis
dc.subject.keyword 214 Mechanical engineering
dc.subject.keyword recycling
dc.identifier.urn URN:NBN:fi:aalto-201812216719
dc.type.version publishedVersion


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