A modified selective recirculation circuit has a loading stage, a stripping stage and a filtering stage for use in processing a feed stream or slurry containing mineral particles. The stripping stage forms a first loop with the loading stage, a second loop with the filtering stage. The loading stage has a loading mixer and a loading washing screen. The stripping stage has a stripping mixer and a stripping washing screen. The loading mixer receives the slurry and causes barren media in the circuit to contact with the slurry so that the mineral particles in the slurry are loaded onto the barren media. The media is directed to the stripping stage where the mineral particles are removed from the media. The barren media is recycled to the loading stage. The stripping solution recovered from the filtering stage is returned to the stripping stage and the mineral particles are discharged as concentrate.

An eggshell membrane separation system of separating a broken egg into an eggshell and an eggshell membrane (100) including: a pulverizer (10) that pulverizes the broken egg; an alkaline water tank (20) in which alkaline water is synthesized; and a separation tank (30) in which the alkaline water is supplied from the alkaline water tank and the broken egg pulverized by the pulverizer is separated into the eggshell and the eggshell membrane, wherein the alkaline water discharged from the separation tank is returned to the alkaline water tank (20) and reused. The eggshell membrane separation system can improve a separation property of an eggshell and an eggshell membrane and smoothly discharge the eggshell precipitated in the separation tank.

An eggshell membrane separation system of separating a broken egg into an eggshell and an eggshell membrane (100) including: a pulverizer (10) that pulverizes the broken egg; an alkaline water tank (20) in which alkaline water is synthesized; and a separation tank (30) in which the alkaline water is supplied from the alkaline water tank and the broken egg pulverized by the pulverizer is separated into the eggshell and the eggshell membrane, wherein the alkaline water discharged from the separation tank is returned to the alkaline water tank (20) and reused. The eggshell membrane separation system can improve a separation property of an eggshell and an eggshell membrane and smoothly discharge the eggshell precipitated in the separation tank.

Provided is a centrifugal field-flow fractionation device in which a liquid sample is less likely to leak from a channel and attachment and detachment work of a channel member is facilitated. By integrally forming an outer peripheral surface 162 and an inner peripheral surface 163 of a channel member 16, the channel member 16 is configured as one hollow member having a channel 161 formed inside. Thus, pressure resistance performance of the channel member 16 is improved, formation of a gap in the channel 161 can be prevented, and deterioration in sealing performance due to secular change is not generated. Accordingly, a liquid sample is less likely to leak from the channel 161. Further, since the channel member 16 can be handled as one member, attachment and detachment work of the channel member 16 is facilitated.

Provided is a centrifugal field-flow fractionation device in which a liquid sample is less likely to leak from a channel and attachment and detachment work of a channel member is facilitated. By integrally forming an outer peripheral surface 162 and an inner peripheral surface 163 of a channel member 16, the channel member 16 is configured as one hollow member having a channel 161 formed inside. Thus, pressure resistance performance of the channel member 16 is improved, formation of a gap in the channel 161 can be prevented, and deterioration in sealing performance due to secular change is not generated. Accordingly, a liquid sample is less likely to leak from the channel 161. Further, since the channel member 16 can be handled as one member, attachment and detachment work of the channel member 16 is facilitated.

A centrifugal field-flow fractionation device 1 includes a rotation unit 10, a rotation sensor 41, a first vibration sensor 51, a second vibration sensor 52, and an imbalance amount calculation unit 312. When an imbalance occurs in the rotation unit 10, the imbalance amount calculation unit 312 calculates the imbalance amount, based on a detection signal from the rotation sensor 41, a detection signal from the first vibration sensor 51, and a detection signal from the second vibration sensor 52. That is, when an imbalance occurs in the rotation unit 10, the imbalance is calculated by the configuration in the centrifugal field-flow fractionation device 1.

A centrifugal field-flow fractionation device 1 includes a rotation unit 10, a rotation sensor 41, a first vibration sensor 51, a second vibration sensor 52, and an imbalance amount calculation unit 312. When an imbalance occurs in the rotation unit 10, the imbalance amount calculation unit 312 calculates the imbalance amount, based on a detection signal from the rotation sensor 41, a detection signal from the first vibration sensor 51, and a detection signal from the second vibration sensor 52. That is, when an imbalance occurs in the rotation unit 10, the imbalance is calculated by the configuration in the centrifugal field-flow fractionation device 1.

An eggshell membrane separation system of separating a broken egg into an eggshell and an eggshell membrane (100) including: a pulverizer (10) that pulverizes the broken egg; an alkaline water tank (20) in which alkaline water is synthesized; and a separation tank (30) in which the alkaline water is supplied from the alkaline water tank and the broken egg pulverized by the pulverizer is separated into the eggshell and the eggshell membrane, wherein the alkaline water discharged from the separation tank is returned to the alkaline water tank (20) and reused. The eggshell membrane separation system can improve a separation property of an eggshell and an eggshell membrane and smoothly discharge the eggshell precipitated in the separation tank.

An eggshell membrane separation system of separating a broken egg into an eggshell and an eggshell membrane (100) including: a pulverizer (10) that pulverizes the broken egg; an alkaline water tank (20) in which alkaline water is synthesized; and a separation tank (30) in which the alkaline water is supplied from the alkaline water tank and the broken egg pulverized by the pulverizer is separated into the eggshell and the eggshell membrane, wherein the alkaline water discharged from the separation tank is returned to the alkaline water tank (20) and reused. The eggshell membrane separation system can improve a separation property of an eggshell and an eggshell membrane and smoothly discharge the eggshell precipitated in the separation tank.

The invention is directed to a process for separating particles using a wet density-based separation device, wherein at least part of said particles are coated prior to being fed to said density-based separation device. In accordance with the invention separation medium that is employed in density-based separation processes can be saved.