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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)
B PERFORMING OPERATIONS; TRANSPORTING
07
SEPARATING SOLIDS FROM SOLIDS; SORTING
B
SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, OR SIFTING OR BY USING GAS CURRENTS; OTHER SEPARATING BY DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
1
Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
46
Constructional details of screens in general; Cleaning or heating of screens
50
Cleaning
52
with brushes or scrapers
Applicants:
Inventors:
Priority Data:
780330822.03.1978SE
Title (EN) APPARATUS FOR SEPARATING FINE MATERIAL FROM COARSE MATERIAL
(FR) APPAREIL POUR SEPARER UN MATERIAU FIN D"UN MATERIAU PLUS GROSSIER
Abstract:
(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)
Also published as:
US4348275DE000002943220GB2035849FR2420375