A device for triboelectric charging of a mixture of granules of different materials, the device having a charging chamber with walls delimiting an inner space. The walls define a granule inlet and a granule outlet, the granule inlet and the granule outlet being separated from one another relative to an elevation direction. A blowing device is arranged suitable for generating, in the inner space, an air flow suitable for allowing the granules in the chamber to form a fluidized bed, and a plurality of grids are positioned in the chamber, the grids being suitable for blocking the passage of the granules, the grids forming a set of baffles in the inner space between the granule inlet and the granule outlet.

A device for triboelectric charging of a mixture of granules of different materials, the device having a charging chamber with walls delimiting an inner space. The walls define a granule inlet and a granule outlet, the granule inlet and the granule outlet being separated from one another relative to an elevation direction. A blowing device is arranged suitable for generating, in the inner space, an air flow suitable for allowing the granules in the chamber to form a fluidized bed, and a plurality of grids are positioned in the chamber, the grids being suitable for blocking the passage of the granules, the grids forming a set of baffles in the inner space between the granule inlet and the granule outlet.

An installation intended to separate the components of a mixture containing fibers (2) and granules (3) is provided. The installation comprises a tribocharger (4) for conferring an electrostatic charge upon the components (2, 3), and at least one pair of electrodes (5, 6) for generating a separating electric field that conveys the charged components, according to their polarity, up to collectors (10, 11). The tribocharger (4) has a containment grating (14) arranged so as to retain the components in the tribocharger (4) until the components (2, 3) have reached a sufficient charge, then to allow the components, once charged, through into the gap (7), from which point the components (2, 3) reach their collector (10, 11) under the effect of the separating electric field.

An installation intended to separate the components of a mixture containing fibers (2) and granules (3) is provided. The installation comprises a tribocharger (4) for conferring an electrostatic charge upon the components (2, 3), and at least one pair of electrodes (5, 6) for generating a separating electric field that conveys the charged components, according to their polarity, up to collectors (10, 11). The tribocharger (4) has a containment grating (14) arranged so as to retain the components in the tribocharger (4) until the components (2, 3) have reached a sufficient charge, then to allow the components, once charged, through into the gap (7), from which point the components (2, 3) reach their collector (10, 11) under the effect of the separating electric field.

An installation intended to separate the components of a mixture containing fibers (2) and granules (3) is provided. The installation comprises a tribocharger (4) for conferring an electrostatic charge upon the components (2, 3), and at least one pair of electrodes (5, 6) for generating a separating electric field that conveys the charged components, according to their polarity, up to collectors (10, 11). The tribocharger (4) has a containment grating (14) arranged so as to retain the components in the tribocharger (4) until the components (2, 3) have reached a sufficient charge, then to allow the components, once charged, through into the gap (7), from which point the components (2, 3) reach their collector (10, 11) under the effect of the separating electric field.

An installation intended to separate the components of a mixture containing fibers (2) and granules (3) is provided. The installation comprises a tribocharger (4) for conferring an electrostatic charge upon the components (2, 3), and at least one pair of electrodes (5, 6) for generating a separating electric field that conveys the charged components, according to their polarity, up to collectors (10, 11). The tribocharger (4) has a containment grating (14) arranged so as to retain the components in the tribocharger (4) until the components (2, 3) have reached a sufficient charge, then to allow the components, once charged, through into the gap (7), from which point the components (2, 3) reach their collector (10, 11) under the effect of the separating electric field.