Abstract:
[Problem] A separation device having a high separation efficiency is provided. [Solution] A separation device 1 includes a shredding unit 30 (first shredding unit), a separation unit 40 (first separation unit), and a transfer path 76 (first air pipe). The shredding unit 30 shreds a disposable diaper (processing target) containing a plastic (first material) and a water-absorbent polymer (second materials) adhering to the plastic into fragments. The separation unit 40 rotates a drum 42 in a state in which the disposable diaper fragments shredded by the shredding unit 30 are accommodated therein, thereby separating the water-absorbent polymer passing through holes 42a from the disposable diaper fragments. The transfer path 76 transfers the disposable diaper fragments shredded by the shredding unit 30 to the separation unit 40 with air pressure. The transfer path 76 has a portion 76a that extends in a first direction, and a portion 76b that is connected to the portion 76a on a downstream side of the portion 76a and that extends in a second direction substantially orthogonal to the first direction.
Abstract:
A system and method for processing a supply of post-consumer scrap linear low density or low density polyethylene film into near-virgin quality blown film product. The method includes tearing the supply of film in a shredder, wherein the surface area of the film is exposed, including delaminating the film. The torn supply of film is washed in a water bath including a surfactant. The film is agitated in the bath containing the surfactant wherein contaminants on the film are removed from the film. The washed film is ground into smaller pieces and additional washing of the ground film in a rotating friction washer and a sink float tank occurs wherein additional contaminants are removed from the film. The ground film is then dried and compacted without addition of water into granulated objects of near-virgin quality blown film product.
Abstract:
The invention relates to an apparatus and a method for reducing the size of fiber composite materials, characterized in that means (6) for mechanically abrading an embedding matrix from fibers is provided, the mechanical abrasion of the embedding matrix from the fibers being performed using a rotational movement. In the method of the invention, an embedding matrix is mechanically abraded from the fibers by the means (6) using a rotational movement of the means (6) that are put in place.
Abstract:
The invention relates to a system and a method for separating aluminium and non-ferrous metals especially from plastic materials, and for separating said plastic materials from each other, comprising a first mill for receiving material to be separated, which is associated, in turn, with a second beater mill for receiving material milled by said first mill and beating the same, wherein said second mill is linked at least to a densimetric separating device associated with an electrostatic separating device.
Abstract:
[Problem to be Solved] The present invention relates to rationalization of a disassembling operation of electronic devices before crushing the devices in order to achieve urban mines, and has an object to achieve mechanical disassembling without significantly destroying components containing many rare elements to be recovered. [Solution] In order to achieve the object, the invention 1 provides a casing disassembling apparatus including: a first rotor and a second rotor journaled on a rotating shaft, and having end surfaces perpendicular to the rotating shaft, wherein the end surfaces face each other, the rotors are placed so that the end surfaces are inclined to each other, a portion at which a space between the end surfaces is larger than at the other portion is an input port of an object to be disassembled, and the other portion is a portion at which a pressurizing force is applied to the input object to be disassembled, and from which a disassembled piece is ejected. The invention 2 provides the casing disassembling apparatus, wherein a plurality of protrusions are mounted to at least one of the end surfaces in the invention 1. The invention 3 provides the casing disassembling apparatus, wherein protrusions are provided on a periphery of one of the end surfaces at predetermined intervals corresponding to a size of the ejected disassembled piece in the invention 2. The invention 4 provides a disassembling method using a casing disassembling apparatus according to any one of the inventions 1 to 3, wherein a relative inclination angle and an inclination angle to the vertical of end surfaces are adjusted to set a space of an input port and a pressurizing force correspondingly to an object to be disassembled such as an electronic device. According to the present invention, a casing can be crushed without components containing rare metal being crushed to a level that the components cannot be recovered. Also, an electronic device can be mechanically disassembled so that the casing and the components can be disconnected from each other and can be separately recovered.
Abstract:
In a facility and a method for separating glass residues from PVB-film, comminuted material is passed through several process steps, where treating with beaters (12) in a chamber (2) is effected in one of the first steps. At the discharge end (18) of the chamber there is arranged a separation, as heavy particular material can be discharged through a perforated bottom section (19) in the chamber (2). Through an air inlet (22) at the side (15) of the chamber, air is drawn in induced by a ventilator-like impeller rotor (28) drawing air in through a central opening (26) spaced apart from the bottom section (19). Thereby, light film-like materials are carried away from the heavy particles.
Abstract:
Die Erfindung betrifft eine Kryogenmahlvorrichtung zur Erzeugung von Feingut mit einer Materialaufgabe (1) zur Aufgabe von Mahlgut, einer daran anschließenden Tieftemperaturversprödungseinrichtung (2) zur Tieftemperaturversprödung des aufgegebenen Mahlguts mittels Zufuhr von flüssigem Tieftemperaturgas, einer daran anschließenden Mühle (3) zur Mahlung des tieftemperaturversprödeten Mahlguts in einer Tieftemperaturgas enthaltenden Athmosphäre, und einer daran anschließenden Abscheideeinrichtung (4) zur Abscheidung des Feinguts aus einem Mühlenausgangsvolumenstrom, welche einen Windsichter (5) umfasst, sowie eine an die Mühle (3) anschließende Entnahmeeinrichtung (8), um dem Mühlenausgangsvolumenstrom das gemahlene Mahlgut zu entnehmen, und eine Leiteinrichtung (6), um das entnommene Mahlgut in den Sichtereingangsvolumenstrom einzuspeisen und überschüssiges Mühlenausgangsgas des Mühlenausgangsvolumenstroms abzuführen. Die Erfindung betrifft ferner ein entsprechendes Kryogenmahlverfahren, bei dem das Abscheiden die Teilschritte Entnehmen des gemahlenen Mahlguts aus dem Volumenstrom, Abführen von überschüssigem Mahlgas, Einspeisen des entnommenen Mahlguts in einen Sichtereingangsvolumenstrom eines Windsichters (5), Windsichten des Sichtereingangsvolumenstroms zur Abscheidung eines das Feingut enthaltenden Sichterausgangsvolumenstroms, umfasst.