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First attempt to do a full-body modelling of a tumbling mill based on first principles
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Material- och solidmekanik.ORCID-id: 0000-0003-0910-7990
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Material- och solidmekanik.ORCID-id: 0000-0002-4634-4373
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Mineralteknik och metallurgi.ORCID-id: 0000-0002-8032-9388
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Material- och solidmekanik.ORCID-id: 0000-0001-7895-1058
2018 (engelsk)Inngår i: Conference in Minerals Engineering / [ed] Jan Rosenkranz, Bertil Pålsson, Tommy Karlkvist, 2018, s. 71-84Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

To efficiently model wet grinding in tumbling mills is a difficult task. Because of the complex behaviour of the pulp with free surfaces and large deformations, the difficulty is usually that the method to represent and reproduce its movements is demanding and time consuming. In this work, an investigation of the possibility to efficiently model and simulate the whole mill body, including the pulp and the charge, and its simultaneous interactions with both the charge and the mill structure is presented. This is done by the ICFD method, which is a Lagrange based method that gives the opportunity to efficiently model the pulp free surface flow, and its interaction with grinding balls and mill structure. Validation is done against experimentally measured driving torque signatures from an instrumented small-scale batch ball mill equipped with an accurate torque meter, and charge movements captured from high-speed video. Numerical results are in good agreement with experimental torque measurements.  

sted, utgiver, år, opplag, sider
2018. s. 71-84
HSV kategori
Forskningsprogram
Hållfasthetslära; Mineralteknik
Identifikatorer
URN: urn:nbn:se:ltu:diva-67574OAI: oai:DiVA.org:ltu-67574DiVA, id: diva2:1181538
Konferanse
Conference in Minerals Engineering, Luleå, 6-7 feb. 2018
Prosjekter
Comminution modelling and controlTilgjengelig fra: 2018-02-08 Laget: 2018-02-08 Sist oppdatert: 2018-04-18bibliografisk kontrollert

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Jonsén, PärLindkvist, GöranPålsson, BertilHammarberg, Samuel
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