Mine door power drive system

E - Fixed Constructions – 21 – F

Patent

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Details

E21F 1/14 (2006.01) E02D 29/00 (2006.01) E21F 1/10 (2006.01) E21F 1/12 (2006.01)

Patent

CA 2399278

A mine door system (10) including at least two doors (20 and 22) positioned in a mine passageway (14) in spaced relation forming an airlock (24). The doors (20 and 22) include at least one leaf (60A-D) movable between open and closed positions to allow passage into and out of the airlock (24). A control system (89) controls operation of leaf movement actuators (70-73) such that in normal operation, at least one door (20 and 22) is always closed to control flow of air in the mine. A power source (91) is included to effect movement of the leafs by the actuators (70-73).

L'invention concerne un système de portes de mine (10) comprenant au moins deux portes (20 et 22) agencées dans une galerie de mine (14), à distance entre elles, de manière à former un sas (24). Les portes (20 et 22) comprennent au moins un battant (60A-D) déplaçable entre les positions d'ouverture et de fermeture pour permettre l'entrée ou la sortie du sas (24). Un système de commande (89) commande le fonctionnement des actionneurs du mouvement des battants (70-73), de façon qu'en fonctionnement normal, au moins une porte (20 et 22) soit toujours fermée en vue de régler l'écoulement de l'air dans la mine. Il est prévu une source d'énergie (91) permettant le déplacement des battants par les actionneurs (70-73).

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