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.

The present invention relates to an intelligent closed type domestic waste sorting bus, including a bus body, a main collection device, a pickup device, a wind separation device, a water separation device, an arrangement device and a control system. The rotary shafts on the pickup device are all distributed with single-row pickup nails. The main collection device is provided with a sliding sleeve, and a distal end of the sliding sleeve is provided with a cutting-stripping machine. The wind separation device is provided with a blowing apparatus. The arrangement device includes a first collection mechanism, a second collection mechanism, a sediment collection mechanism, a floater arrangement mechanism and a main arrangement mechanism; the present invention can achieve primary sorting of municipal domestic waste in early days, which provides the possibility and convenience for the subsequent professional disposal, and will change the current disposal mode of municipal domestic waste.

The present invention relates to an intelligent closed type domestic waste sorting bus, including a bus body, a main collection device, a pickup device, a wind separation device, a water separation device, an arrangement device and a control system. The rotary shafts on the pickup device are all distributed with single-row pickup nails. The main collection device is provided with a sliding sleeve, and a distal end of the sliding sleeve is provided with a cutting-stripping machine. The wind separation device is provided with a blowing apparatus. The arrangement device includes a first collection mechanism, a second collection mechanism, a sediment collection mechanism, a floater arrangement mechanism and a main arrangement mechanism; the present invention can achieve primary sorting of municipal domestic waste in early days, which provides the possibility and convenience for the subsequent professional disposal, and will change the current disposal mode of municipal domestic waste.

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.

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.

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.

Provided is a method that enables sufficient separation of an egg shell and an egg shell membrane from each other even in a small scale, using a simpler configuration than conventional methods. The method for separating an egg shell and an egg shell membrane from each other includes a step of adding an egg shell with an egg shell membrane attached thereto to a swirling flow of an alkaline solution.

Provided is a method that enables sufficient separation of an egg shell and an egg shell membrane from each other even in a small scale, using a simpler configuration than conventional methods. The method for separating an egg shell and an egg shell membrane from each other includes a step of adding an egg shell with an egg shell membrane attached thereto to a swirling flow of an alkaline solution.

Method for washing a plastics material and for separating contaminating substances therefrom comprises the steps of: supplying a first flow of a washing fluid together with the plastics material with contaminants to a washing container in which a stirrer generates a turbulent action to detach mechanically the contaminants adhering to the plastics material, enabling a first fraction of heavier contaminants to precipitate onto a first bottom portion of the container, thus performing a first action of separating contaminants; transferring a second flow: of fluid with floating plastics material from the container to a first separating chamber, in which a second separating action takes place with the precipitation of a second fraction of the contaminants onto a second bottom portion of the first chamber; conveying a third flow of fluid with floating plastics material from the first chamber to a second separating chamber and evacuating by overflowing an outgoing flow of fluid together with the processed plastics material; in the transit froth the first chamber to the second chamber the agglomerates of floating plastics are disaggregated, and to the third flow and to the plastics material a downward propelling action inside the second chamber is imparted to promote a third separating action with precipitation of a third fraction of the contaminants onto a third bottom portion of the second chamber; removing from the second chamber a recirculation flow comprising precipitated fluid and contaminants and sending the recirculation flow to a screen unit that retains the contaminants, returning the washing fluid to the first or second chamber. The apparatus for implementing the aforesaid method is also disclosed.