Conveyor arrangements with multiple shaftless screws

B - Operations – Transporting – 65 – G

Patent

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Details

B65G 33/14 (2006.01) B65G 33/18 (2006.01)

Patent

CA 2285310

The present invention relates to a vertical conveyor (2) with double spirals (21, 31). The vertical conveyor (2) consists of a casing (20) and two shaftless spirals (21, 31). The spirals (21, 31) are driven each by a motor (24) via a gear and journal unit (25). The motors (24) are placed at the one short end of the vertical conveyor (2). The inlet (22) and outlet (23) of the conveyor (2) are disposed on opposite sides of the casing (20). The spirals (21, 31) are driven in opposite directions in such a manner that the material is "drawn" in at the inlet (22), while being "pressed" out at the outlet (23). This takes place thanks to the material being subjected to force components from the two spirals (21, 31) which act in the directions of the inlet (22) and the outlet (23), respectively. In a number of embodiments, a stationary shaft (33) is disposed within the spirals (21, 31) at least in the region of the inlet (22). Opposite the inlet (22), the casing (20) merges in a wedge form (26) between the spirals (21, 31). The casing (20) is normally open between the two spirals (21, 31). The vertical conveyor (31) is often fed by a substantially horizontal conveyor (1).

L'invention concerne un convoyeur (2) vertical doté d'une double hélice (21, 31). Le convoyeur (2) vertical comprend une enveloppe (20) et deux hélice (21, 31) sans fin. Chaque hélice (21, 31) est entraînée par un moteur (24) via une unité d'engrenage et de portée (25). Les moteurs (24) sont placés sur la petite extrémité du convoyeur vertical (2). L'entrée (22) et la sortie (23) du convoyeur sont placées sur des côtés opposés de l'enveloppe (20). Les hélices (21, 31) sont entraînées dans des sens opposés de telle manière que la masse est "tirée" à l'entrée (22) et "exprimé" à la sortie (23). Pour ce faire, la masse est soumise à des composants de force, en l'occurrence, les deux hélices (21, 31) qui agissent dans le sens de l'entrée (22) et respectivement de la sortie (23). Dans un certain nombre de réalisations, une tige stationnaire (33) est placée dans les hélices (21, 31) au moins dans la zone de l'entrée (22). A l'opposé de l'entrée (22), l'enveloppe (20) a une forme en V (26) entre les hélices (21, 31). L'enveloppe (20) est normalement ouverte entre les deux hélices (21, 31). Le convoyeur vertical (31) est souvent alimenté par un convoyeur sensiblement horizontal (1).

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