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Titolo:
The effect of fibre type on bubble size
Autore:
Garner, AE; Heindel, TJ;
Indirizzi:
Inst Paper Sci & Technol, Atlanta, GA 30318 USA Inst Paper Sci & Technol Atlanta GA USA 30318 hnol, Atlanta, GA 30318 USA
Titolo Testata:
JOURNAL OF PULP AND PAPER SCIENCE
fascicolo: 7, volume: 26, anno: 2000,
pagine: 266 - 269
SICI:
0826-6220(200007)26:7<266:TEOFTO>2.0.ZU;2-J
Fonte:
ISI
Lingua:
ENG
Soggetto:
SUSPENSION; DYNAMICS; COLUMN;
Keywords:
bubbles; radiography; flow; kraft pulps; bleached pulps; softwoods; waste papers; flotation deinking;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
16
Recensione:
Indirizzi per estratti:
Indirizzo: Garner, AE Inst Paper Sci & Technol, 500,10th St NW, Atlanta, GA 30318 USAInst Paper Sci & Technol 500,10th St NW Atlanta GA USA 30318 SA
Citazione:
A.E. Garner e T.J. Heindel, "The effect of fibre type on bubble size", J PULP PAP, 26(7), 2000, pp. 266-269

Abstract

Flash X-ray radiography is used for gas flow visualization and bubble sizemeasurements in three different pulp slurries. Suspensions of 1% old newspaper (ONP), copy paper (CP) and northern bleached softwood kraft (NBSK) comprise the various furnishes. For a fixed gas flow rate, the flow conditionsare churn-turbulent in the fibre suspensions while bubbly flow is observedin an air/water reference conditions. Bubble size measurements are obtained in the various systems, and bubbles are classified as either small (d less than or equal to 12 mm) or large (d > 12 mm). The number of small bubblesdecreased and the number of large bubbles increases as the cellulose fibrelength increases. All small bubbles follow similar distributions and are characterized by a single lognormal bubble size distribution.

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Documento generato il 26/11/20 alle ore 14:25:59