LrgpV1, Main, Merge, bibRecord, 000618

Transverse motion of cohesive powders in flighted rotary kilns: experimental study of unloading at ambient and high temperatures

Identifieur interne : 000618 ( Main/Merge ); précédent : 000617; suivant : 000619

Transverse motion of cohesive powders in flighted rotary kilns: experimental study of unloading at ambient and high temperatures

Auteurs : Marie Debacq [France] ; Stéphane Vitu [France] ; Denis Ablitzer [France] ; Jean-Léon Houzelot [France] ; Fabrice Patisson [France]

Source :

Powder Technology [ 0032-5910 ] ; 2013-04-17.

RBID : Hal:hal-00823592

English descriptors

mix :
- cohesive powder, discharge, lifter, rotary kiln, transverse motion, uranium.

Abstract

The transverse flow of cohesive powders in rotary kilns equipped with lifters was studied experimentally and theoretically. A laboratory device was built up in which the flow of uranyl difluoride (UO2F2), uranium sesquioxide (U3O8) and uranium dioxide (UO2) powders was filmed, recorded and analyzed using partly manual image analysis techniques. Experiments were performed both at room temperature and at high temperature. A constitutive law describing the powder discharge was derived, involving a relationship between the volume fraction of powder contained in a lifter and the angular position of this lifter. This law based on geometrical calculations is successfully compared with the experimental results of unloading.

Url:

https://hal.archives-ouvertes.fr/hal-00823592

DOI: 10.1016/j.powtec.2013.04.007

Links toward previous steps (curation, corpus...)

to stream Hal, to step Corpus: 000B83
to stream Hal, to step Curation: 000B83
to stream Hal, to step Checkpoint: 000562

Links to Exploration step

Hal:hal-00823592

Le document en format XML

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<orgName>Université de Lorraine</orgName>
<orgName type="acronym">UL</orgName>
<date type="start">2012-01-01</date>
<desc><address><addrLine>34 cours Léopold - CS 25233 - 54052 Nancy cedex</addrLine>
<country key="FR"></country>
</address>
<ref type="url">http://www.univ-lorraine.fr/</ref>
</desc>
</org>
</tutelle>
<tutelle name="UMR7198" active="#struct-441569" type="direct"><org type="institution" xml:id="struct-441569" status="VALID"><idno type="ISNI">0000000122597504</idno>
<idno type="IdRef">02636817X</idno>
<orgName>Centre National de la Recherche Scientifique</orgName>
<orgName type="acronym">CNRS</orgName>
<date type="start">1939-10-19</date>
<desc><address><country key="FR"></country>
</address>
<ref type="url">http://www.cnrs.fr/</ref>
</desc>
</org>
</tutelle>
</tutelles>
</hal:affiliation>
<country>France</country>
<placeName><settlement type="city">Nancy</settlement>
<settlement type="city">Metz</settlement>
<region type="region" nuts="2">Grand Est</region>
<region type="old region" nuts="2">Lorraine (région)</region>
</placeName>
<orgName type="university">Université de Lorraine</orgName>
</affiliation>
</author>
</analytic>
<idno type="DOI">10.1016/j.powtec.2013.04.007</idno>
<series><title level="j">Powder Technology</title>
<idno type="ISSN">0032-5910</idno>
<imprint><date type="datePub">2013-04-17</date>
</imprint>
</series>
</biblStruct>
</sourceDesc>
</fileDesc>
<profileDesc><textClass><keywords scheme="mix" xml:lang="en"><term>cohesive powder</term>
<term>discharge</term>
<term>lifter</term>
<term>rotary kiln</term>
<term>transverse motion</term>
<term>uranium</term>
</keywords>
</textClass>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en">The transverse flow of cohesive powders in rotary kilns equipped with lifters was studied experimentally and theoretically. A laboratory device was built up in which the flow of uranyl difluoride (UO2F2), uranium sesquioxide (U3O8) and uranium dioxide (UO2) powders was filmed, recorded and analyzed using partly manual image analysis techniques. Experiments were performed both at room temperature and at high temperature. A constitutive law describing the powder discharge was derived, involving a relationship between the volume fraction of powder contained in a lifter and the angular position of this lifter. This law based on geometrical calculations is successfully compared with the experimental results of unloading.</div>
</front>
</TEI>
</record>

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Transverse motion of cohesive powders in flighted rotary kilns: experimental study of unloading at ambient and high temperatures

Transverse motion of cohesive powders in flighted rotary kilns: experimental study of unloading at ambient and high temperatures

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