C - Chemistry – Metallurgy – 03 – B
Patent
C - Chemistry, Metallurgy
03
B
C03B 37/04 (2006.01) C03B 37/083 (2006.01) D04H 3/16 (2006.01)
Patent
CA 2436894
The invention concerns a device for internal centrifuging of mineral fibres comprising a centrifuge provided with a peripheral band perforated with orifices distributed in a plurality of annular zones (ZA) arranged one above the other when the centrifuge is viewed in centrifuging position. The invention is characterised in that the device further comprises at least two annular zones (ZA1, ZA2) whereof the number of orifices per unit area (NS1, NS2) is different by a value not less than 5 %, in particular not less than 10 % and even 20 %.
La présente invention concerne un dispositif de centrifugation interne de fibres minérales comprenant un centrifugeur muni d'une bande périphérique percée d'orifices répartis en une pluralité de zones annulaires (ZA) disposées les unes au-dessus des autres en considérant le centrifugeur en position de centrifugation. Conformément à l'invention, le dispositif comprend en outre au moins deux zones annulaires (ZA1, ZA2) dont le nombre d'orifices par unité de surface (NS1, NS2) est différent d'une valeur supérieure ou égale à 5 %, notamment supérieure ou égale à 10 %, et même à 20 %.
Beaufils Sebastien
Wagner Christophe
Goudreau Gage Dubuc
Saint-Gobain Isover
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