Crushing apparatus and method of putting it into operation

B - Operations – Transporting – 02 – C

Patent

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B02C 2/04 (2006.01)

Patent

CA 2721055

A crushing apparatus (1) has a gyratory crusher (2), which has an inner shell (6), an outer shell (14) and an eccentric (16). A lubricating system (22) is arranged to conduct a lubricant to at least one movable part, such as said eccentric (16), of the gyratory crusher (2). The lubricating system (22) has an oil sump (24), which collects the lubricant after it has been used for lu-brication of the movable part (16), and a valve mecha-nism (34), which is arranged to apportion a lubricant flow in the crusher (2). The valve mechanism (34) is arranged to assume a first position, in which a first sub-volume of the lubricant flow is conducted directly to the movable part (16) for lubrication of the same and a second sub-volume is conducted directly to the oil sump (24), the second sub-volume constituting 30-100% of the lubricant flow, and a second position, in which at least 90% of the lubricant flow is conducted to the movable part (16) for lubrication of the same.

L'invention porte sur un appareil de concassage (1) qui présente un concasseur giratoire (2) ayant une enveloppe interne (6), une enveloppe externe (14) et un excentrique (16). Un système de lubrification (22) est disposé pour amener un lubrifiant vers au moins une partie mobile, telle que ledit excentrique (16) du concasseur giratoire (2). Le système de lubrification (22) a un carter d'huile (24), qui recueille le lubrifiant après qu'il a été utilisé pour la lubrification de la partie mobile (16), et un mécanisme de soupape (34), qui est disposé pour répartir un écoulement de lubrifiant dans le concasseur (2). Le mécanisme de soupape (34) est disposé pour prendre une première position, dans laquelle un premier sous-volume de l'écoulement de lubrifiant est amené directement vers la partie mobile (16) pour la lubrification de celle-ci et un second sous-volume est amené directement vers le carter d'huile (24), le second sous-volume constituant 30 à 100 % de l'écoulement de lubrifiant, et une seconde position, dans laquelle au moins 90 % de l'écoulement de lubrifiant est amené vers la partie mobile (16) pour la lubrification de celle-ci.

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