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Machine translation
1. (WO1979000812) APPARATUS FOR SEPARATING FINE MATERIAL FROM COARSE MATERIAL
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1979/000812    International Application No.:    PCT/SE1979/000064
Publication Date: 18.10.1979 International Filing Date: 21.03.1979
IPC:
B07B 1/52 (2006.01)
Applicants:
Inventors:
Priority Data:
7803308 22.03.1978 SE
Title (EN) APPARATUS FOR SEPARATING FINE MATERIAL FROM COARSE MATERIAL
(FR) APPAREIL POUR SEPARER UN MATERIAU FIN D"UN MATERIAU PLUS GROSSIER
Abstract: front page image
(EN)An apparatus for separating fine material from coarse material. The screens at present in use in the mining industry usually are so-called shaking screens. They comprise a screen-cloth, which is subjected to a vibration movement. This type of screens, however, has a very high oise level and also is exposed to heavy wear owing to the vibrations, to which the screen parts are subjected. The present invention has the object to provide an apparatus of the kind referred to above, at which the noise level and the mechanical wear are substantially lower than at conventional screens. The apparatus according to the invention comprises a perforated stationary screen-cloth (9) supported by members (10, 11, 12), which are interconnected to a closed chain (17) in such a manner, that the support members can be moved along an endless path, and means (11b, 13, 24) for rotating the portions of the support members (10, 11, 12) abutting the screen-cloth (9) in the direction opposed to the direction of movement.
(FR)Appareil qui separe un materiau fin d"un materiau plus grossier. Les cribles utilises actuellement dans l"industrie miniere sont les cribles dits a remuage. Ils comprennent une toile formant tamis qui est soumise a un mouvement vibratoire. Ce type de cribles, possede cependant un niveau sonore tres eleve et est expose a de fortes usures dues aux vibrations auxquelles sont soumises les parties formant crible. L"objet de la presente invention est de fournir un appareil du type susmentionne pour lequel le niveau sonore et l"usure mecanique sont reduits considerablement. L"appareil de l"invention comprend une toile formant crible immobile perforee (9) supportee par des organes (10, 11, 12) qui sont relies entre eux a une chaine fermee (17) de telle maniere que les organes de support puissent se deplacer selon un passage sans fin, et des moyens (11b, 13, 24) pour effectuer la rotation des parties des organes de support (10, 11, 12) en contact avec la toile (9) dans le sens contraire au sens de deplacement.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)