A method and apparatus for the separation of gas and liquid-solid slurry under pressure, and passage of the liquid-solid slurry to an atmospheric discharge.

A secondary impurity-removal recycling system for refining cotton is provided. A first feeding opening is set on the side of the first bin shell, in which the first drum is movably installed, and the first drum is tube shaped. A first mesh is set on the peripheral wall of the first drum, and a first scraper is set at the first feeding opening inside the first bin shell. One end of the first drum is provided with a first impurity-discharging pipe, the outer periphery of which is provided with a first annular hump. The first connecting sleeve is installed on the outer wall of the first bin shell, and the first impurity-discharging pipe is movably stuck in the first connecting sleeve through the first annular hump, and communicates with the first connecting sleeve. The first induced draft fan communicates with the first connecting sleeve through a first air duct.

The invention relates to a screening device and a method for screening powders. The device comprises a screening space comprising a first chamber and a second chamber, which chambers are arranged adjacent and have a common partition wall. The device comprises a screen which is placed obliquely or vertically in the screening device, wherein the screen forms at least a part of the common partition wall. The first chamber comprises a raw material inlet, a drive gas inlet, a float gas unit, and a residual particle outlet. The second chamber comprises a product material outlet and a rotatable blade, wherein the blade comprises nozzles which are configured for blowing gas against the screen. In addition, the invention relates to an assembly comprising a first and second screening device, wherein the product material outlet of a first screening device is connected to the raw material inlet of the second screening device.

The invention relates to a screening device and a method for screening powders. The device comprises a screening space comprising a first chamber and a second chamber, which chambers are arranged adjacent and have a common partition wall. The device comprises a screen which is placed obliquely or vertically in the screening device, wherein the screen forms at least a part of the common partition wall. The first chamber comprises a raw material inlet, a drive gas inlet, a float gas unit, and a residual particle outlet. The second chamber comprises a product material outlet and a rotatable blade, wherein the blade comprises nozzles which are configured for blowing gas against the screen. In addition, the invention relates to an assembly comprising a first and second screening device, wherein the product material outlet of a first screening device is connected to the raw material inlet of the second screening device.

A compactly configurable device that classifies material containing fiber can more reliably recover classified content. A classifier has a mesh disc with numerous holes, and separates screenings that pass through the holes from remnants that do not pass through; a defibrated material spray nozzle disposed to one side of the mesh disc sprays defibrated material containing fiber onto the mesh disc; a suction conduit disposed to the other side of the mesh disc suctions the waste screenings that pass through the holes; and a recovery conduit disposed on the one side of the mesh disc suctions the processing feedstock that do not pass through the holes and in the mesh disc and remain on the mesh disc. The mesh disc is disposed so the a position of the holes can move from a spraying position opposite the defibrated material spray nozzle to a suction position opposite the recovery conduit. The recovery conduit suctions, at the suction position, processing feedstock that was left at the spraying position.

A compactly configurable device that classifies material containing fiber can more reliably recover classified content. A classifier has a mesh disc with numerous holes, and separates screenings that pass through the holes from remnants that do not pass through; a defibrated material spray nozzle disposed to one side of the mesh disc sprays defibrated material containing fiber onto the mesh disc; a suction conduit disposed to the other side of the mesh disc suctions the waste screenings that pass through the holes; and a recovery conduit disposed on the one side of the mesh disc suctions the processing feedstock that do not pass through the holes and in the mesh disc and remain on the mesh disc. The mesh disc is disposed so the a position of the holes can move from a spraying position opposite the defibrated material spray nozzle to a suction position opposite the recovery conduit. The recovery conduit suctions, at the suction position, processing feedstock that was left at the spraying position.

A passive food screen device (1) for flour in a delivery flow comprising: a housing (2) with a housing inlet (3) and a housing outlet (4); a closed screen insert (5) arranged substantially within the housing (2) such that a spatial area (6) is formed between the inner wall (7) of the housing (2) and the outer wall (8) of the screen insert (5) and screen elements (9) of the screen insert (5) are arranged substantially parallel to the main conveying direction (F); and a hose coupling (10) on the housing inlet (3) and/or on the housing outlet (4). The food screen device allows a high delivery capacity, and, by virtue of its narrow design, can be carried on a silo vehicle and used as a control screen when delivering flour. The food screen device (1) is designed such that the flour can be moved in an air delivery stream.

A passive food screen device (1) for flour in a delivery flow comprising: a housing (2) with a housing inlet (3) and a housing outlet (4); a closed screen insert (5) arranged substantially within the housing (2) such that a spatial area (6) is formed between the inner wall (7) of the housing (2) and the outer wall (8) of the screen insert (5) and screen elements (9) of the screen insert (5) are arranged substantially parallel to the main conveying direction (F); and a hose coupling (10) on the housing inlet (3) and/or on the housing outlet (4). The food screen device allows a high delivery capacity, and, by virtue of its narrow design, can be carried on a silo vehicle and used as a control screen when delivering flour. The food screen device (1) is designed such that the flour can be moved in an air delivery stream.

The disclosed method includes a separation step wherein composite particles are transferred to a vicinity of an inlet of a fibrous carbon nanostructure path configured to recover fibrous carbon nanostructures by allowing the fibrous carbon nanostructures to pass therethrough, and a fluid flowing toward the inlet of the path and an external force including a component of a direction opposite to the direction in which the fluid flows are applied to the composite particles to separate the fibrous carbon nanostructures and a particulate ceramic support substrate; and a recovery step wherein the separated fibrous carbon nanostructures are transferred to an interior of the path for recovery by a flow of the fluid, with the separated substrate transferred away from the fibrous carbon nanostructure path for recovery, wherein, in the separation step, the external force applied to the substrate is greater than that applied to the fibrous carbon nanostructures.

A system for the physical-mechanical recovery and refining of non-ferrous metals from electronic scrap, with means for the separation of the interest metals from the polymeric and resin support frames, which does not require the addition of solvents or temperature rise, for the disintegration and separation of materials, so that no toxic waste is produced for the environment.