An irrecoverable-waste feeding and metering apparatus for feeding a waste separator, comprising:—a loading hopper having a mixing compartment and a discharge duct which extends between the mixing compartment and a discharge mouth thereof, for discharging material from the latter;—a central auger and two lateral augers; the central auger extending into the discharge duct and into the mixing compartment and the lateral augers are arranged inside the mixing compartment each on one side of the central auger;—a transfer device having a feed channel which has a loading portion and a feeding portion. The transfer device comprises two transfer augers extending from the loading portion along the feed channel and which each have a first helicoid. The first helicoid of a first transfer auger has a direction opposite to that of the first helicoid of the second transfer auger.

Systems and methods for separating heavier from lighter materials in mixed auto shredder residue (ASR) from end-of-life vehicles. Vehicles are shredded and the resulting mixed ASR is fed into a system that efficiently segregates heavier (typically metal) from lighter (typically plastic) pieces. The system has an inlet feed chute angled downward to a lower end over a separator tank filled with water. One or more nozzles configured to introduce water at a velocity into the separator tank create a flow of water across the tank to push smaller and lighter particles over an exit weir. Heavier particles sink toward a heavy matter removal conveyor having a lower end positioned within the separator tank so that the heavier particles are transported upward out of the separator tank. The heavy matter removal conveyor may be one or more Archimedes screws, a flat, ribbed or cleated conveyor, or a drag chain.

A feeding device for feeding a separation apparatus, the separation apparatus being suitable for separating aggregates from concrete residues in order to reclaim said aggregates, comprises: a tank for containing a fluid comprising a liquid in which the aggregates to be reclaimed are dispersed; a main screw conveyor for collecting said fluid from a collecting zone of the tank and conveying the liquid and the aggregates contained in said fluid towards the separation apparatus; at least one auxiliary screw conveyor positioned along a bottom surface of the tank for conveying the fluid towards said collecting zone.

This application discloses a separator for separating and recovering materials from a waste stream. The separator has a cyclone having a top section and a bottom section, an impeller within the cyclone, a media inlet for accepting a flow of media or a pulsating flow of the media operatively connected to the impeller in which media or fluid flows through the impeller into the separator; a first discharge passage for a collecting a light fraction, and a second discharge passage for collecting a heavy fraction.

Systems and methods for separating heavier from lighter materials in mixed auto shredder residue (ASR) from end-of-life vehicles. Vehicles are shredded and the resulting mixed ASR is fed into a system that efficiently segregates heavier (typically metal) from lighter (typically plastic) pieces. The system has an inlet feed chute angled downward to a lower end over a separator tank filled with water. One or more nozzles configured to introduce water at a velocity into the separator tank create a flow of water across the tank to push smaller and lighter particles over an exit weir. Heavier particles sink toward a heavy matter removal conveyor having a lower end positioned within the separator tank so that the heavier particles are transported upward out of the separator tank. The heavy matter removal conveyor may be one or more Archimedes screws, a flat, ribbed or cleated conveyor, or a drag chain.

A treatment device for treating a mixture of at least a liquid, organic solids and inorganic, mineral solids, includes a container for receiving the mixture. The container tapers in a funnel shape in a direction of a longitudinal axis of the container. An inlet tangentially supplies the mixture to the container. An outlet discharges the liquid essentially containing the organic solids from the container. A discharge apparatus serves for discharging the inorganic, mineral solids. The treatment device also includes a sleeve adapted to guide the mixture between an outer wall of the sleeve and an inner wall of the container and to guide the liquid containing the organic solids within an inner wall of the sleeve for discharge from the outlet.

A waste sorting system (1) comprising a tank (S) for collecting recyclable material (RM) and a sorting unit (U) comprising a first sorting station (10) connected to the tank (S) through a transport device (12) of the recyclable material and a first sorting basin (14) containing a first liquid solution (L1) of given density to separate, according to Archimedes' principle, the recyclable material (RM) into a first material phase (F1) of first selection and a second material phase (F2) of first submersion; the first sorting basin (14) is delimited at the bottom by a first lower collection portion (140), the sorting unit (U) comprising first scraper means (16) associated with the first sorting basin (14) for collecting the first phase (F1) from a free surface of the first liquid solution (L1) and first wash means (18) of this first phase (F1); the first lower collection portion (140) being passed through by a first conveyor (11).

A separator for separating sand from organic matter comprises a first compartment (11) for receiving and separating a mixture of sand, organic matter and liquid, a plurality of liquid inlets (29) in a bottom region of the first compartment (11) for introducing liquid into the bottom region of the first compartment and generating an upward liquid flow in the first compartment, means (47) for removing organic matter from the top of the mixture in the first compartment (11), an outlet in an upper region of the first compartment (11) for the discharge of organic matter and liquid, and an outlet (9) in a lower region of the first compartment for the discharge of sand and liquid.

A hydraulic density separation device for separating a heavy material fraction with components of higher density from a light material fraction with components of lower density from a feed material includes a conveying device for conveying away the heavy material fraction, receiving chamber which can be filled with water for receiving the feed, a flow generator for generating a water flow in the receiving chamber and a water-fillable separation chamber for receiving the light material fraction. The conveying device has a shaft with a screw conveyor section for conveying the heavy material fraction out of the receiving chamber. The flow generator is designed and arranged such that a flow path of the water flow leads from the receiving chamber into the separation chamber. The conveying device has, in addition to the screw conveyor section, at least one washing section having a plurality of separate paddles arranged on the shaft.

An irrecoverable-waste feeding and metering apparatus for feeding a waste separator, comprising: a loading hopper having a mixing compartment and a discharge duct which extends between the mixing compartment and a discharge mouth thereof, for discharging material from the latter; a central auger and two lateral augers; the central auger extending into the discharge duct and into the mixing compartment and the lateral augers are arranged inside the mixing compartment each on one side of the central auger; a transfer device having a feed channel which has a loading portion and a feeding portion. The transfer device comprises two transfer augers extending from the loading portion along the feed channel and which each have a first helicoid. The first helicoid of a first transfer auger has a direction opposite to that of the first helicoid of the second transfer auger.