A solenoid valve includes: a magnetic force generating coil generating an electromagnetic force; a valve spool reciprocated depending on an electromagnetic force generated from the magnetic force generating coil; a holder having the valve spool inserted into a hollow portion of the holder and forming a plurality of ports opened and closed depending on the reciprocating motion of the valve spool; a foreign material collecting coil collecting a foreign material when power is applied to the magnetic force generating coil to serve as an electromagnet; and a foreign material outlet port formed in the holder and discharging the foreign material collected in the foreign material collecting coil when the supply of power to the foreign material collecting coil is released to outside.

A solenoid valve includes: a magnetic force generating coil generating an electromagnetic force; a valve spool reciprocated depending on an electromagnetic force generated from the magnetic force generating coil; a holder having the valve spool inserted into a hollow portion of the holder and forming a plurality of ports opened and closed depending on the reciprocating motion of the valve spool; a foreign material collecting coil collecting a foreign material when power is applied to the magnetic force generating coil to serve as an electromagnet; and a foreign material outlet port formed in the holder and discharging the foreign material collected in the foreign material collecting coil when the supply of power to the foreign material collecting coil is released to outside.

A device for separating a sample of cells suspended in a bio-compatible ferrofluid is described, The device includes a microfluidic channel having a sample inlet, at least one outlet and a length between the same inlet and the at least one outlet, wherein a sample can be added to the sample inlet and flow along the microfluidic channel length to the at least one outlet. The device includes a plurality of electrodes and a power source for applying a current to the plurality of electrodes to create a magnetic field pattern along the microfluidic channel length. The present invention also includes a method of using said device for separating at least one cell type.

A device for separating a sample of cells suspended in a bio-compatible ferrofluid is described, The device includes a microfluidic channel having a sample inlet, at least one outlet and a length between the same inlet and the at least one outlet, wherein a sample can be added to the sample inlet and flow along the microfluidic channel length to the at least one outlet. The device includes a plurality of electrodes and a power source for applying a current to the plurality of electrodes to create a magnetic field pattern along the microfluidic channel length. The present invention also includes a method of using said device for separating at least one cell type.

A size sorting device for carbon nanotube agglomerate and a method for separating and collecting dispersed carbon nanotubes using the size sorting device are provided. The size sorting device and method for separation and collection may use a magnetic field for separating and collecting dispersed carbon nanotubes.

A size sorting device for carbon nanotube agglomerate and a method for separating and collecting dispersed carbon nanotubes using the size sorting device are provided. The size sorting device and method for separation and collection may use a magnetic field for separating and collecting dispersed carbon nanotubes.

A system and process for sorting and recovery of recyclable materials, and in particular, sorting and recovery of recyclable materials from mixed waste comprising municipal solid waste in a materials recovery facility.

A system and process for sorting and recovery of recyclable materials, and in particular, sorting and recovery of recyclable materials from mixed waste comprising municipal solid waste in a materials recovery facility.

Provided is a sorting machine capable of more easily and efficiently sorting specific parts having a specific shape from raw materials containing various substances having different shapes, and a method for treating electronic and electric device component scraps using the sorting machine. The sorting machine includes a conveying device 1 having a conveying surface 13 which conveys raw materials containing substances having different shapes from a raw material inlet 11 to a receiving port 12; and a gate device 2 provided with a cylindrical roll portion 21 having a rotating function arranged at a certain distance d on the conveying surface to allow at least a part of the raw materials 100 to pass through to the receiving port 12.

Provided is a sorting machine capable of more easily and efficiently sorting specific parts having a specific shape from raw materials containing various substances having different shapes, and a method for treating electronic and electric device component scraps using the sorting machine. The sorting machine includes a conveying device 1 having a conveying surface 13 which conveys raw materials containing substances having different shapes from a raw material inlet 11 to a receiving port 12; and a gate device 2 provided with a cylindrical roll portion 21 having a rotating function arranged at a certain distance d on the conveying surface to allow at least a part of the raw materials 100 to pass through to the receiving port 12.