Apparatus for scattering fibrous material, e.g. chips

B - Operations – Transporting – 27 – N

Patent

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Details

B27N 3/14 (2006.01) B07B 4/00 (2006.01) B27N 3/02 (2006.01)

Patent

CA 2670946

An apparatus for scattering fibrous material, e.g., chips, said apparatus serving to spread chips using either a throw or air-jet spreading method to form a mat (3) of chips onto a moving band conveyor (4) or the like, whereby the scattering process avails a gas flow, such as air flow, for instance; the apparatus having a scattering chamber mounted above the band conveyor or the like. The invention is implemented such that, in order to prevent lateral turbulence, the volume of the scattering chamber's length wherein the major portion of the material being scattered falls onto the band conveyor or the like is at least partially divided into smaller subspaces adjacent to each other in the cross-machine direction by substantially thin plate- like elements (9) set apart from each other in cross-machine direction at a spacing substantially larger than the particle size of the material being scattered.

La présente invention concerne un appareil de dispersion de matériau fibreux, p. ex. des copeaux. Cet appareil sert à étaler les copeaux en utilisant un procédé d'étalement de type lancer ou jet d'air afin de former un matelas (3) de copeaux sur une bande convoyeuse en mouvement (4) ou son équivalent ; le procédé de dispersion utilise un flux de gaz, tel qu'un flux d'air, par exemple ; l'appareil comporte une chambre de dispersion montée au-dessus de la bande convoyeuse ou son équivalent. L'invention est implémentée de telle sorte que, pour empêcher une turbulence latérale, le volume de la longueur de la chambre de dispersion, sachant que la portion principale du matériau dispersé tombe sur la bande convoyeuse ou son équivalent, est au moins partiellement divisé en sections plus petites adjacentes les unes aux autres dans le sens transversal de l'appareil par éléments pratiquement plats de type plaque (9) séparés les unes des autres dans le sens transversal de la machine à intervalles essentiellement plus grands que la taille de particule du matériau dispersé.

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