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Charge and structur...
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Jonsén, PärLuleå tekniska universitet,Material- och solidmekanik
(författare)
Charge and structure behaviour in a tumbling mill
- Artikel/kapitelEngelska2010
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London :Research Publishing Services,2010
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LIBRIS-ID:oai:DiVA.org:ltu-35397
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https://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-35397URI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:ref swepub-contenttype
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Ämneskategori:kon swepub-publicationtype
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Godkänd; 2010; 20110314 (ysko)
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The grinding process in tumbling mills is complex and to include all phenomena that occur in a single numerical model is today not possi-ble. This paper presents the results of a study in which the deflection of a lifter bar in a pilot ball mill is measured by an embedded strain gauge sensor and compared to deflections predicted from finite ele-ment (FE) simulations. The flexible rubber lifter and the lining in a tumbling mill are modelled with the finite element method (FEM) and the grinding medium modelled with the distinct element method (DEM). The deflection profile obtained from DEM-FE simulation shows a reasonably good correspondence to pilot mill measurements. The approach presented here is a contribution to the validation of DEM-FE simulations and an introduction to the description of a bend-able rubber lifter implemented in a DEM-FEM mill model. It opens up the possibility to predict contact forces for varying mill dimensions and liner combinations. FEM is especially valuable in this case, since there are readily available libraries with material models. This is a fol-low-up work to previous preliminary result from a mono-size ball charge interaction study
Ämnesord och genrebeteckningar
Biuppslag (personer, institutioner, konferenser, titlar ...)
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Pålsson, BertilLuleå tekniska universitet,Industriell miljö- och processteknik(Swepub:ltu)palle
(författare)
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Tano, KentLuleå tekniska universitet,Institutionen för samhällsbyggnad och naturresurser(Swepub:ltu)ketaml
(författare)
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Berggren, AndreasTechnology and Development, Boliden Minerals, SE-93681 Boliden, Sweden
(författare)
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Luleå tekniska universitetMaterial- och solidmekanik
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:The Fifth International Conference on Discrete Element MethodsLondon : Research Publishing Services, s. 490-4959780955117985
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