Chip bin assembly including a hollow transition with one...

D - Textiles – Paper – 21 – C

Patent

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Details

D21C 7/06 (2006.01) B65D 88/64 (2006.01)

Patent

CA 2181892

A chip bin construction, ideally suited for bins having a maximum diameter of twelve feet or more, uniformly discharges chips, after steaming, without the necessity of a vibratory discharge. A hollow transition portion is provided between a main body which is a right circular cylinder of a first diameter, and a nonvibrating discharge which has a second diameter typically 1/3 or less that of the first diameter. The hollow transition includes a first, uppermost, portion having a generally right rectangular parallelepiped configuration including opposite side faces having generally triangular shapes, and providing one dimensional convergence and side relief; a second portion tapering from a generally rectangular parallelepiped configuration at an upper pan to a generally circular configuration at a lower pan and having opposite side faces having generally triangular shapes which align with said first portion generally triangular shapes to define substantially diamond shaped wall portions. Also, there preferably is provided a third portion substantially the same as the first portion, only smaller, and connected to the second portion lower part; and a fourth, lowermost, portion substantially the same as the second portion only smaller, and connected to the third portion and discharge. Steam is introduced into the main body and the hollow transition, such as through steam conduits in the generally triangular shaped faces of the second portion of the hollow transition. Air blasters are mounted where appropriate in the hollow transition to break up chip hangups.

Structure de trémie à copeaux dont le diamètre optimal n'excède pas 12 pieds ou plus et conçue pour assurer après l'étuvage une décharge uniforme des copeaux sans l'aide d'un vibreur. Une zone de transition creuse relie le corps principal cylindrique d'un premier diamètre au conduit de décharge dont le diamètre est normalement d'un tiers ou moins de celui du corps principal. La zone creuse de transition comprend: une portion supérieure en forme de parallélépipède rectangle dont deux des côtés opposés sont triangulaires et qui présente une convergence unidimensionnelle et un relief latéral; et une seconde portion en entonnoir raccordant la précédente à une portion sensiblement circulaire et dont deux des côtés opposés, sensiblement triangulaires, se raccordent aux côtés sensiblement triangulaires de la portion supérieure pour former une sorte de pyramide. L'ensemble comporte en outre de préférence une troisième portion sensiblement identique à la première mais plus petite et raccordée à la base de la seconde portion ainsi qu'une quatrième portion inférieure, sensiblement identique à la seconde mais plus petite et raccordée à la base de la troisième et au conduit de décharge. La vapeur est introduite dans le corps principal et dans la zone de transition p. ex. par des conduits débouchant sur les faces sensiblement rectangulaires de la seconde portion de ladite zone. Des soufflantes montées en des points idoines de la zone de transition assurent la désagrégation des accumulations de copeaux.

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