Abrégé

Apparatus for separating solid materials is described, which comprises a channel for receiving a liquid and the materials to be separated, the channel being provided with an agitation surface. Means for directing streams of fluid at the materials to be separated are provided, the streams of fluid urging the materials over and against the agitation surface to separate the materials. Heavier material is urged along the bottom of the channel to an exit under the action of the streams of fluid, and lighter material separated from the heavier material rises to the surface of the liquid. The agitation surface comprises a plurality of formations each extending across at least a portion of the width of the channel, each formation comprising an ascending surface and a descending surface, at least part of the ascending surface having a steeper slope with respect to the base of the channel than the descending surface.

Classes IPC  ?

• B03B 5/26 - Lavage de matériaux en grains, en poudre ou en grumeauxSéparation par voie humide en utilisant comme moyens principaux de séparation, des lits secoués, pulsés ou agités dans des sluices, c.-à-d. dans des rigoles ou couloirs
• B03B 5/40 - Dispositifs à cet effet, autres que ceux employant la force centrifuge à bassin
• B03B 11/00 - Dispositifs d'alimentation ou d'évacuation intégrés dans un matériel de lavage ou de séparation par voie humide

Abrégé

An apparatus (10) for separating solid materials is described, which comprises a channel (14) for receiving a liquid and the materials to be separated, the channel being provided with an agitation surface. Means for directing streams of fluid (26) at the materials to be separated are provided, the streams of fluid urging the materials over and against the agitation surface to separate the materials. Heavier material is urged along the bottom of the channel to an exit under the action of the streams of fluid, and lighter material separated from the heavier material rises to the surface of the liquid. The agitation surface comprises a plurality of formations (34) each extending across at least a portion of the width of the channel (14), each formation comprising an ascending surface and a descending surface, at least part of the ascending surface having a steeper slope with respect to the base of the channel than the descending surface. It has been found that the shallower descending surface of one formation followed by the steeper ascending surface of the next formation provides an improvement in agitation of the solid materials as they progress down the descending surface and start to progress up the ascending surface, keeps the transition from the descending surface to the ascending surface clear of a build-up of materials, and provides for the lighter materials to be urged upwards at a suitable angle to reach the surface for removal.

Classes IPC  ?

• B03B 5/26 - Lavage de matériaux en grains, en poudre ou en grumeauxSéparation par voie humide en utilisant comme moyens principaux de séparation, des lits secoués, pulsés ou agités dans des sluices, c.-à-d. dans des rigoles ou couloirs
• B03B 5/00 - Lavage de matériaux en grains, en poudre ou en grumeauxSéparation par voie humide
• B03B 11/00 - Dispositifs d'alimentation ou d'évacuation intégrés dans un matériel de lavage ou de séparation par voie humide
• B03B 5/40 - Dispositifs à cet effet, autres que ceux employant la force centrifuge à bassin

Abrégé

Apparatus for cleaning contaminated aggregate comprising: at least one channel arranged in use to receive a liquid containing contaminated aggregate; and first and second banks or groups of at least one jet. The first bank or group of jets is arranged to direct pressurised fluid at the contaminated aggregate in order to agitate the contaminated aggregate against a surface thereby promoting separation of cleaned aggregate from contaminated aggregate. The second bank or group of jets is arranged to direct and/or urge the cleaned aggregate to a drainage outlet.

Classes IPC  ?

• B03B 5/00 - Lavage de matériaux en grains, en poudre ou en grumeauxSéparation par voie humide
• B03B 5/40 - Dispositifs à cet effet, autres que ceux employant la force centrifuge à bassin
• B03B 9/06 - Disposition générale d'un atelier de séparation, p. ex. schéma opératoire spécialement adapté aux ordures

Abrégé

Apparatus for cleaning contaminated aggregate comprising: at least one channel arranged in use to receive a liquid containing contaminated aggregate; and first and second banks or groups of at least one jet. The first bank or group of jets is arranged to direct pressurised fluid at the contaminated aggregate in order to agitate the contaminated aggregate against a surface thereby promoting separation of cleaned aggregate from contaminated aggregate. The second bank or group of jets is arranged to direct and/or urge the cleaned aggregate to a drainage outlet.

Classes IPC  ?

• B03B 5/00 - Lavage de matériaux en grains, en poudre ou en grumeauxSéparation par voie humide
• B03B 9/062 -
• B03B 9/06 - Disposition générale d'un atelier de séparation, p. ex. schéma opératoire spécialement adapté aux ordures
• B03B 5/40 - Dispositifs à cet effet, autres que ceux employant la force centrifuge à bassin