Conveyors for particulate material

B - Operations – Transporting – 65 – G

Patent

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Details

B65G 47/78 (2006.01)

Patent

CA 2293390

A tubular slow speed drag or aero mechanical conveyor assembly (1) for transporting particulate material, includes a tubular valve (11) positioned in line with conveyor tubes (1) of the assembly and rotatable relative thereto. The valve (11) has at least one elongate aperture (21) through which particulate material can leave the assembly (1) and means (24, 25) are provided for sequentially rotating the tubular valve (11) between positions in which the at least one aperture (21) is in the open or closed position of the valve (11). In one arrangement the rotation imparting means comprises an air cylinder (23) operable to impart linear movement to a gear rack (24) which meshes with and imparts rotational movement to an annular gear wheel (25) carried by the tubular valve (11).

L'invention concerne un ensemble transporteur (1) tubulaire à faible vitesse du type à racloirs ou aéromécanique conçu pour transporter des matières particulaires, comprenant une vanne tubulaire (11) placée de manière à être alignée sur des tubes transporteurs (1) de l'ensemble et rotative par rapport à ceux-ci. La vanne (11) présente au moins une ouverture allongée (21) à travers laquelle la matière particulaire peut quitter l'ensemble (1) et des organes (24, 25) permettant de faire pivoter de manière séquentielle la vanne tubulaire (11) entre des positions dans lesquelles au moins une ouverture (21) se trouve dans une position ouverte ou fermée de la vanne. Selon un agencement, l'organe de rotation comprend un vérin pneumatique (23) pouvant être actionné de manière à imprimer un mouvement linéaire à une crémaillère (24) qui s'engrène avec une roue dentée annulaire (25) supportée par la vanne tubulaire (11) et imprime un mouvement rotatif à cette roue.

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