Separation of mixed materials is accomplished by causing a stream of the materials to fall on an inclined separation ramp, while directing a stream of air onto the ramp. Lower-density materials having higher aerodynamic drag, such as paper scraps, are blown up and over the ramp into a first collection zone, while more dense materials having less aerodynamic drag, such as glass fragments, will tend to descend the ramp and fall into a separate collection zone.

An air wash abrasive particle separator apparatus which separates contaminants from previously-used abrasive particles contained in a contaminated abrasive particle mixture such that the abrasive particles may be re-used multiple times, the apparatus being in combination a contaminated abrasive particle mixture delivery device, an accumulator hopper assembly, a volume sensing device, an automatic flow control valve, a separator assembly and an air transfer device.

An air wash abrasive particle separator apparatus which separates contaminants from previously-used abrasive particles contained in a contaminated abrasive particle mixture such that the abrasive particles may be re-used multiple times, the apparatus being in combination a contaminated abrasive particle mixture delivery device, an accumulator hopper assembly, a volume sensing device, an automatic flow control valve, a separator assembly and an air transfer device.

The invention is used in various branches of industry, in particular in agriculture for preparing seeds for sowing and for selection purposes. The method of separating a granular mixture in a flowing medium is based on a gravitational supply of particles, with an aerodynamic, monotonously increasing action thereon with a cascade of flat jets, said cascade being stabilized in terms of pressure and discharge. Large impurities are removed from the granular mixture beforehand, and stable parameters are maintained in the separation chamber. The device comprises a vibrating screen, an adjustable hopper with an agitator and a vibrating chute, a generator of a cascade of flat jets, which is connected to a drive for supplying air under pressure, a fraction collector and a separation chamber. The output of the separation chamber is covered with a filtering element in the form of a rotating drum with a calibrating sifter on the surface, said sifter being connected to a cyclone.

The invention is used in various branches of industry, in particular in agriculture for preparing seeds for sowing and for selection purposes. The method of separating a granular mixture in a flowing medium is based on a gravitational supply of particles, with an aerodynamic, monotonously increasing action thereon with a cascade of flat jets, said cascade being stabilized in terms of pressure and discharge. Large impurities are removed from the granular mixture beforehand, and stable parameters are maintained in the separation chamber. The device comprises a vibrating screen, an adjustable hopper with an agitator and a vibrating chute, a generator of a cascade of flat jets, which is connected to a drive for supplying air under pressure, a fraction collector and a separation chamber. The output of the separation chamber is covered with a filtering element in the form of a rotating drum with a calibrating sifter on the surface, said sifter being connected to a cyclone.

A device for separation and removal of light impurities of a granular material has a body (1) in the upper part of which is located a fan (2) that sucks air, driven by a motor (3), and in the central part is axially fixed a hopper (6) connected to an inlet (7) of the granular material wherein in the lower part of the device is located a module (13) in the shape of a centripetal guide (14) consisting of a cylindrical housing (15) on the internal wall of which are evenly arranged, at a distance from each other, in different transverse planes, directing plates (16) turned with their ends towards the device axis such that the plates (16) in one plane are shifted in relation to the plates (16) in an adjacent plane. Between the hopper (6) and constituting a separate module (13) the centripetal guide (14) with directing plates (16), a module (8) is located in the shape of a cylinder (9) inside which is located a centrifugal guide (10) that has a shape of an axial supporting member (11) on the surface of which in different transverse planes are fixed directing elements (12) turned with their ends towards the internal wall of the cylinder (9). The modules (8) with the centrifugal guide (10) and the modules (13) with the centripetal guide (14) are placed alternately below the hopper (6).

A device for separation and removal of light impurities of a granular material has a body (1) in the upper part of which is located a fan (2) that sucks air, driven by a motor (3), and in the central part is axially fixed a hopper (6) connected to an inlet (7) of the granular material wherein in the lower part of the device is located a module (13) in the shape of a centripetal guide (14) consisting of a cylindrical housing (15) on the internal wall of which are evenly arranged, at a distance from each other, in different transverse planes, directing plates (16) turned with their ends towards the device axis such that the plates (16) in one plane are shifted in relation to the plates (16) in an adjacent plane. Between the hopper (6) and constituting a separate module (13) the centripetal guide (14) with directing plates (16), a module (8) is located in the shape of a cylinder (9) inside which is located a centrifugal guide (10) that has a shape of an axial supporting member (11) on the surface of which in different transverse planes are fixed directing elements (12) turned with their ends towards the internal wall of the cylinder (9). The modules (8) with the centrifugal guide (10) and the modules (13) with the centripetal guide (14) are placed alternately below the hopper (6).

A method and application of accelerating material cleaning with strong magnet particles are provided. The wind airflow enter from the material inlet to accelerate the material, so that the material particles move at a certain speed, and the position and speed of the material can be controlled when it reaches the highest speed; There are internal strong magnetic field units where the material passes, especially when the material reaches the highest speed; Internal strong magnetic field units are used to generate the internal strong magnetic field. According to the method and application, the internal strong magnetic field is used to eliminate the attractive forces such as electromagnetic force, van der Waals force and liquid bridge between the material and the impurities attached to the surface of the material.

A device for separation and removal of light impurities from granular material has a cylindrical body, in the upper part of which is located a motor-driven fan that sucks air and an outlet channel for light impurities, below which there is axially mounted a feed channel connected to a container of granular material, and in the lower part of the body there is axially located a cylinder with an outer diameter smaller than the inner diameter (d) of the body, containing a centrifugal guide located under the outlet of the feed channel, whereas below the centrifugal guide, on the inner wall of the cylinder are fixed uniformly spaced directing plates at a certain distance from each other, their ends being pointed towards the axis of the device, and between the body and the cylinder there is a chute for purified material. There is a plurality of openwork hinders.

A device for separation and removal of light impurities from granular material has a cylindrical body, in the upper part of which is located a motor-driven fan that sucks air and an outlet channel for light impurities, below which there is axially mounted a feed channel connected to a container of granular material, and in the lower part of the body there is axially located a cylinder with an outer diameter smaller than the inner diameter (d) of the body, containing a centrifugal guide located under the outlet of the feed channel, whereas below the centrifugal guide, on the inner wall of the cylinder are fixed uniformly spaced directing plates at a certain distance from each other, their ends being pointed towards the axis of the device, and between the body and the cylinder there is a chute for purified material. There is a plurality of openwork hinders.