An intelligent elutriation magnetic separator includes a material feeding trough, an overflow trough, a separation tank, excitation coils, a balance column, an outer cover, a water supply system, a lower cone, a concentrate discharging system and sensors. The excitation coils are sleeved outside the periphery of the separation tank, and the outer cover is sleeved outside the excitation coils. The balance column is mounted on the inner sides of the separation tank; the balance column and the separation tank are coaxially mounted; and the water supply system is located on the separation tank. The lower cone and the separation tank are mounted intercommunicated at the bottom. The concentrate discharging system is mounted on the bottom of the lower cone; and the sensor is mounted on the lower cone for measuring the slurry concentration in the separation tank. An automatic intelligent program is used to control the intelligent elutriation magnetic separator.

A method for advancing a non-magnetically responsive functional agent includes steps (a) and (b). In step (a), a magnetically responsive agent construct at a target site is subjected to a homogeneous static magnetic field such that magnetically responsive micro particles are aligned to obtain a magnetic chain while the non-magnetically responsive functional agent is separated and discrete from the magnetic chain. In step (b), the magnetic chain is subjected to a rotational magnetic field to cause repeating breaking up and reformation of the magnetic chain such that the non-magnetically responsive functional agent is displaced to a predetermined position.

A method for advancing a non-magnetically responsive functional agent includes steps (a) and (b). In step (a), a magnetically responsive agent construct at a target site is subjected to a homogeneous static magnetic field such that magnetically responsive micro particles are aligned to obtain a magnetic chain while the non-magnetically responsive functional agent is separated and discrete from the magnetic chain. In step (b), the magnetic chain is subjected to a rotational magnetic field to cause repeating breaking up and reformation of the magnetic chain such that the non-magnetically responsive functional agent is displaced to a predetermined position.

A method includes flowing a magnetic and non-magnetic particle-containing liquid across a rotor that has alternating pole electromagnets, energizing the electromagnets and rotating the rotor to generate a changing magnetic field to generate eddy currents in the non-magnetic particles, repelling the non-magnetic particles to a collection point by the changing magnetic field, directing the magnetic particles from the electromagnets to the collection point, and removing the magnetic and non-magnetic particles from the collection point.

A method includes flowing a magnetic and non-magnetic particle-containing liquid across a rotor that has alternating pole electromagnets, energizing the electromagnets and rotating the rotor to generate a changing magnetic field to generate eddy currents in the non-magnetic particles, repelling the non-magnetic particles to a collection point by the changing magnetic field, directing the magnetic particles from the electromagnets to the collection point, and removing the magnetic and non-magnetic particles from the collection point.

A method includes flowing a magnetic and non-magnetic particle-containing liquid across a rotor that has alternating pole electromagnets, energizing the electromagnets and rotating the rotor to generate a changing magnetic field to generate eddy currents in the non-magnetic particles, repelling the non-magnetic particles to a collection point by the changing magnetic field, directing the magnetic particles from the electromagnets to the collection point, and removing the magnetic and non-magnetic particles from the collection point.

A method includes flowing a magnetic and non-magnetic particle-containing liquid across a rotor that has alternating pole electromagnets, energizing the electromagnets and rotating the rotor to generate a changing magnetic field to generate eddy currents in the non-magnetic particles, repelling the non-magnetic particles to a collection point by the changing magnetic field, directing the magnetic particles from the electromagnets to the collection point, and removing the magnetic and non-magnetic particles from the collection point.

A continuous discharge magnetic sweeper apparatus with a vertical axis rotary clean off attachment. The main magnetic sweeper consists of a handle, a back wheel, a frontal debris bin, a drive wheel and a finned drum housing a magnetic assembly. Magnetic debris is attracted by magnet assembly, accumulates on the finned drum and is deposited in the frontal debris bin. The vertical axis rotary clean off attachment connects to the magnetic sweeper and consists of a main frame body, a mounting feature, a support wheel, a rotary cap and a finned driving wheel. The finned driving wheel is a hollow finned wheel driven by contact with a wall, assisting the magnetic field to move shot from the wall side into the main sweeper's range to be picked up by the main sweeper apparatus.

A continuous discharge magnetic sweeper apparatus with a vertical axis rotary clean off attachment. The main magnetic sweeper consists of a handle, a back wheel, a frontal debris bin, a drive wheel and a finned drum housing a magnetic assembly. Magnetic debris is attracted by magnet assembly, accumulates on the finned drum and is deposited in the frontal debris bin. The vertical axis rotary clean off attachment connects to the magnetic sweeper and consists of a main frame body, a mounting feature, a support wheel, a rotary cap and a finned driving wheel. The finned driving wheel is a hollow finned wheel driven by contact with a wall, assisting the magnetic field to move shot from the wall side into the main sweeper's range to be picked up by the main sweeper apparatus.

The invention provides an apparatus (10) for removing magnetic particles (53) from a liquid flowing from an oil or gas operation and method of use. The apparatus (10) comprises a plurality of magnet assemblies (20), each having a first condition in which an operable part is active to attract magnetic particles (53) to the magnet assembly (20), and a second condition in which the operable part is inactive and magnetic particles (53) are not attracted to the magnet assembly (20). A drive mechanism (13) moves the magnet assemblies (20) between exposure to a flow path of from a liquid (40) flowing from an oil or gas operation and a collection location (54). An activation means (36) moves the magnet assemblies (20) between the first condition and the second condition.