A novel separation screen, a separation apparatus utilizing the separation screen, and a method for product separation are disclosed herein. The separation apparatus includes a housing defining a separation chamber having an inlet and a plurality of outlet orifices. A separation screen, which is located within the separation chamber, has a plurality of openings having fixed, non-uniform sizes. The separation apparatus also includes an adjustable feed placement device located upstream from the separation screen to direct a feed stream to a selected region of the separation screen to achieve a desired size distribution in each of the product streams.

A novel separation screen, a separation apparatus utilizing the separation screen, and a method for product separation are disclosed herein. The separation apparatus includes a housing defining a separation chamber having an inlet and a plurality of outlet orifices. A separation screen, which is located within the separation chamber, has a plurality of openings having fixed, non-uniform sizes. The separation apparatus also includes an adjustable feed placement device located upstream from the separation screen to direct a feed stream to a selected region of the separation screen to achieve a desired size distribution in each of the product streams.

A food-product handling device includes a sifter unit having housing defining an open upper side, a mount extending outwardly from the first housing along a first axis, and a lower side opposite the upper side. A sifter basket has an interior and is aligned with and inset within the open upper side. The device further includes a scale assembly having a body defining an upper opening and an opposite lower opening and having an annular weight-sensing unit surrounding the upper opening. The body is positionable on the housing of the sifter unit with the opening in communication with the open upper side of the housing. A hopper is positionable on the weight-sensing unit.

A food-product handling device includes a sifter unit having housing defining an open upper side, a mount extending outwardly from the first housing along a first axis, and a lower side opposite the upper side. A sifter basket has an interior and is aligned with and inset within the open upper side. The device further includes a scale assembly having a body defining an upper opening and an opposite lower opening and having an annular weight-sensing unit surrounding the upper opening. The body is positionable on the housing of the sifter unit with the opening in communication with the open upper side of the housing. A hopper is positionable on the weight-sensing unit.

An assembly and method for gravitationally separating gold from particles, and specifically for separating small components of gold, less than 1 millimeter from small particles. A series of sieves having graduated mesh sizes, and arranged in a sequential, stacked configuration sieves the aggregate of large particles and larger components of gold. The remaining small particles and smaller components of gold fall into a container. A pressurized column of fluid is forced into the container. The fluid has sufficient flow velocity to suspend the lighter small particles, but insufficient flow velocity to support the denser, high specific gravity gold. Gold has a large specific gravity relative to the fluid and particles. Gravity causes the gold to falls into a transparent collection conduit. Manipulation of valves enables gold to redirect to a collection bin. Fluid flow is shut, enabling small particles to be flushed out through gravitational forces and excess fluid momentum.

An assembly and method for gravitationally separating gold from particles, and specifically for separating small components of gold, less than 1 millimeter from small particles. A series of sieves having graduated mesh sizes, and arranged in a sequential, stacked configuration sieves the aggregate of large particles and larger components of gold. The remaining small particles and smaller components of gold fall into a container. A pressurized column of fluid is forced into the container. The fluid has sufficient flow velocity to suspend the lighter small particles, but insufficient flow velocity to support the denser, high specific gravity gold. Gold has a large specific gravity relative to the fluid and particles. Gravity causes the gold to falls into a transparent collection conduit. Manipulation of valves enables gold to redirect to a collection bin. Fluid flow is shut, enabling small particles to be flushed out through gravitational forces and excess fluid momentum.

A dispersion feeder for distributing a product stream to a plurality of receiving devices arranged about the periphery of the dispersion feeder, the dispersion feeder comprising a dispersion table; wherein the dispersion table comprises: a product receiving region at the centre of the dispersion table configured to receive a product stream comprising product and slack, and a product dispensing region surrounding the product receiving region; wherein the dispersion table is configured to transfer the product radially from the product receiving region to the product dispensing region; characterised in that the dispersion table further comprises: one or more apertures extending through the dispersion table, the one or more apertures being positioned between the product receiving region and the product dispensing region.

A dispersion feeder for distributing a product stream to a plurality of receiving devices arranged about the periphery of the dispersion feeder, the dispersion feeder comprising a dispersion table; wherein the dispersion table comprises: a product receiving region at the centre of the dispersion table configured to receive a product stream comprising product and slack, and a product dispensing region surrounding the product receiving region; wherein the dispersion table is configured to transfer the product radially from the product receiving region to the product dispensing region; characterised in that the dispersion table further comprises: one or more apertures extending through the dispersion table, the one or more apertures being positioned between the product receiving region and the product dispensing region.

The present disclosure generally relates to devices, designs, and methods of using a constant tension tie down assembly for holding a separation screen or sieve. The constant tension tie down assembly applies constant tension to a separation screen or sieve while decreasing wear and tear on the screen.

A multi-zoned paddle screen apparatus 100 is disclosed for separating fiber from a liquid medium during, for example, a grain wet mill or dry grind process. The apparatus includes a housing 106 having first and second zones 108a, 108b situated adjacent one another along a length (L) of the housing 106. First and second screen sections 102a, 102b having a plurality of openings 104 may be situated lengthwise within the housing 106 corresponding with the first and second zones 108a, 108b, respectively. The first and second screen sections 102a, 102b have a circular cross-section, and the second screen section 102b has a larger diameter than the first screen section 102a. An elongated shaft 130 situated lengthwise within the screen sections 102a, 102b includes first and second conveyors 128a, 128b, which correspond with the first and second zones 108a, 108b, respectively, having a plurality of paddles 132. Each conveyor 128a, 128b is configured to move material in a direction along a length of the screen 102a, 102b. There may be more than two zones 108a, 108b.