Dust seal for gyratory crushers

B - Operations – Transporting – 02 – C

Patent

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241/44

B02C 2/00 (2006.01) B02C 2/04 (2006.01)

Patent

CA 2015298

A first annular seal member on the base of a gyratory rock crusher is associated with a second annular seal member on the crusher cone. These two seal members have cooperating spherical surfaces which rub slidably together in the gyratory movements. An air sealing chamber is formed by the sealing members and other portions of the crusher and is associated with an annular groove in the first seal member having an inlet with a forced air system in an arrangement wherein air currents intercept dust moving along the spherical surfaces and also carry such dust away from inner portions of the crusher.

Un premier élément de joint d'étanchéité annulaire sur la base d'un concasseur giratoire est associé à un deuxième élément de joint d'étanchéité annulaire sur le cône du concasseur. Ces deux éléments de joint d'étanchéité annulaire ont des surfaces sphériques conjuguées qui se frottent en glissant l'une sur l'autre dans leurs mouvements giratoires. Une chambre d'étanchéité à l'air est formée par les éléments de joint d'étanchéité et d'autres parties du concasseur et est associée avec une rainure annulaire dans le premier élément de joint d'étanchéité ayant une entrée avec un système d'air soufflé dans un agencement permettant que des courants d'air interceptent la poussière se déplaçant le long des surfaces sphériques et l'emportent à l'écart des parties intérieures du concasseur.

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