Device for determining fineness of mineral fibers

Details Device for determining fineness of mineral fibers Device for determining fineness of mineral fibers

G - Physics

01

N

G01N 33/38 (2006.01) G01B 13/08 (2006.01) G01N 15/08 (2006.01)

Patent

CA 2486460

The invention concerns a device for determining fineness of mineral fibers (1) adapted to supply the micronic value of fibers, said device (1) comprising a device for measuring (8) the fineness index, said fineness index measuring device (8) being provided with at least one first orifice (3) connected to a measuring cell (2) adapted to receive a sample consisting of a plurality of fibers and with a second orifice (6) connected to a device measuring (5) a differential pressure prevailing on either side of said sample, said differential pressure adjusting device (5) being designed to be connected to a fluid flow generating device (10). The invention is characterized in that the fineness index measuring device (8) includes at least one volumetric flowmeter for the fluid passing through said cell (2).

L'invention a pour objet un dispositif de détermination de l'indice de finesse de fibres minérales (1) adapté pour fournir la valeur micronaire de fibres, ledit dispositif (1) comportant un dispositif de mesurage (8) de I'indice de finesse, le dit dispositif de mesurage (8) de I'indice de finesse étant pourvu d'une part, d'au moins un premier orifice (3) relié à une cellule de mesure (2) adaptée pour recevoir un échantillon constitué d'une pluralité de fibres et d'autre part, d'un second orifice (6) relié à un dispositif de mesurage (5) d'une pression différentielle située de part et d'autre dudit échantillon, ledit dispositif de réglage (5) de la pression différentielle étant destiné à être relié à un dispositif de production d'écoulement de fluide (10), caractérisé en ce que le dispositif de mesurage (8) de l'indice de finesse comporte au moins un débitmètre volumétrique du fluide traversant ladite cellule (2).

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