Janez Kosel (Avtor), Andrej Šinkovec (Avtor), Matevž Dular (Avtor)

Povzetek

Refining of cellulose pulp is a critical step in obtaining high quality paper characteristics, however, this process is slow and costly especially for refining longer conifer fibers which are the preferred source for high quality paper production and give the paper its strength. In this study, we have applied a novel rotation generator of hydrodynamic cavitation for refining conifer rich pulp samples. Our results show that the device is capable of generating intense shear forces and multiple zones of developed cavitation and is successful in increasing the drainage rate of high consistency pulp (3%). The paper produced by means of the obtained pulp has higher quality because of its higher tensile index (50.5 kN m kg-1) and burst index (3 kPa m2 g-1). These physical parameters were sufficient for newsprint paper and other paper/board quality manufacture. In addition, this laboratory scale rotation generator proved to be economically efficient in comparison to the routinely employed laboratory beaters. To our knowledge, this is the first example of using hydrodynamic cavitation for the refinement of softwood fiber pulp of standard industrial consistencies (3%).

Ključne besede

rotational cavitation generator;hydrodynamic cavitation;drainability rate;tensile index;burst index;papermaking fibres;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UL FS - Fakulteta za strojništvo
UDK: 532.528:676.026(045)
COBISS: 514097195 Povezava se bo odprla v novem oknu
ISSN: 1350-4177
Št. ogledov: 229
Št. prenosov: 100
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Slovenski jezik
Sekundarne ključne besede: rotacijski generator;hidrodinamska kavitacija;stopnja drenaže;natezni indeks;razpočni indeks;vlakna;papirna inustrija;
Vrsta dela (COBISS): Revija
Strani: str. 1-9
Zvezek: ǂVol. ǂ59
Čas izdaje: Dec. 2019
DOI: 10.1016/j.ultsonch.2019.104721
ID: 12792651