Provided is a magnetic separator in which even when content of a magnetic sludge in a liquid to be treated increases, recovery performance of the magnetic sludge is less likely to degrade and a malfunction of the device is less likely to occur. Apart of an outer peripheral surface of a magnet drum is immersed in a flow of the liquid to be treated containing the magnetic sludge. A removing mechanism removes the magnetic sludge on the outer peripheral surface of the magnet drum from the outer peripheral surface of the magnet drum. A magnetic sludge containing information acquisition device acquires magnetic sludge containing information relating to a content of the magnetic sludge contained in the liquid to be treated. A control device changes a magnetic sludge removal capability of the magnet drum depending on the magnetic sludge containing information acquired by the magnetic sludge containing information acquisition device.

A magnetic separator includes: a scraper configured to channel a liquid through an opening portion to a flow pathway, the scraper extends from a sub-drum to the opening portion; a first bottom wall configured to channel the liquid along the flow pathway in a manner that channels the liquid away from the opening portion, the flow pathway is between a main drum and a curved surface of the first bottom wall; and a second bottom wall configured to channel the liquid along a lower flow path in a manner that channels the liquid to the opening portion, the lower flow path is between the sub-drum and a curved surface of the second bottom wall.

A magnetic separator includes: a scraper configured to channel a liquid through an opening portion to a flow pathway, the scraper extends from a sub-drum to the opening portion; a first bottom wall configured to channel the liquid along the flow pathway in a manner that channels the liquid away from the opening portion, the flow pathway is between a main drum and a curved surface of the first bottom wall; and a second bottom wall configured to channel the liquid along a lower flow path in a manner that channels the liquid to the opening portion, the lower flow path is between the sub-drum and a curved surface of the second bottom wall.

The application provides an apparatus for removing ferrous particles from an oil or gas process liquid or slurry and a method of use. The apparatus has a first inner cylindrical sheath and a second outer cylindrical sheath arranged concentrically on a longitudinal axis to create an annular volume. A helical screw flight on the first or second cylindrical sheaths extends across the annular volume, and a magnet assembly extends along the longitudinal axis, such that ferrous particles are attracted to a surface of the annular volume. The apparatus has an inlet a discharge outlet, and a ferrous particle collection location. The screw flight and the cylindrical sheath operable to rotate with respect to the magnet assembly to convey particles to the collection location. The apparatus includes a retaining surface to retain collected particles.

The application provides an apparatus for removing ferrous particles from an oil or gas process liquid or slurry and a method of use. The apparatus has a first inner cylindrical sheath and a second outer cylindrical sheath arranged concentrically on a longitudinal axis to create an annular volume. A helical screw flight on the first or second cylindrical sheaths extends across the annular volume, and a magnet assembly extends along the longitudinal axis, such that ferrous particles are attracted to a surface of the annular volume. The apparatus has an inlet a discharge outlet, and a ferrous particle collection location. The screw flight and the cylindrical sheath operable to rotate with respect to the magnet assembly to convey particles to the collection location. The apparatus includes a retaining surface to retain collected particles.

A magnetic drum including a plurality of magnets mounted along a circumferential direction on a holder. The magnets are disposed such that magnetic pole surfaces face each other along the circumferential direction on the holder, and the magnets are engaged with the holder so as not to move in a radial direction.

A collection kit for the removal of unwanted material from a surface, said kit comprising: iv) ferromagnetic material to absorb and/or adsorb the unwanted material when spread across the unwanted material creating an area of operation; v) an apparatus having a magnetic source operable to attract the ferromagnetic material together with absorbed and/or adsorbed unwanted material when the magnetic source is touching or in the vicinity of the area of operation; and vi) means to dislodge the ferromagnetic material and absorbed and/or adsorbed unwanted material from the apparatus once the ferromagnetic material has been removed from the area of operation.

A collection kit for the removal of unwanted material from a surface, said kit comprising: iv) ferromagnetic material to absorb and/or adsorb the unwanted material when spread across the unwanted material creating an area of operation; v) an apparatus having a magnetic source operable to attract the ferromagnetic material together with absorbed and/or adsorbed unwanted material when the magnetic source is touching or in the vicinity of the area of operation; and vi) means to dislodge the ferromagnetic material and absorbed and/or adsorbed unwanted material from the apparatus once the ferromagnetic material has been removed from the area of operation.

A method for performing a magnetic separation procedure that includes transporting a receptacle containing a fluid medium to a first location of a system, where the fluid medium contains both a sample material and a suspension of magnetically-responsive solid supports. At the first location, the fluid medium is exposed to a first magnetic field for a first dwell period, thereby isolating the solid supports within the receptacle, where no portion of the fluid medium is removed from the receptacle at the first location. The receptacle is then transported from the first location to a second location of the system, where the fluid medium is exposed to a second magnetic field for a second dwell period. Following the second dwell period, at least a portion of the fluid medium is removed from the receptacle. A suspension fluid is then dispensed into the receptacle, and the contents of the receptacle are agitated to suspend the solid supports within the suspension fluid.

A method for performing a magnetic separation procedure that includes transporting a receptacle containing a fluid medium to a first location of a system, where the fluid medium contains both a sample material and a suspension of magnetically-responsive solid supports. At the first location, the fluid medium is exposed to a first magnetic field for a first dwell period, thereby isolating the solid supports within the receptacle, where no portion of the fluid medium is removed from the receptacle at the first location. The receptacle is then transported from the first location to a second location of the system, where the fluid medium is exposed to a second magnetic field for a second dwell period. Following the second dwell period, at least a portion of the fluid medium is removed from the receptacle. A suspension fluid is then dispensed into the receptacle, and the contents of the receptacle are agitated to suspend the solid supports within the suspension fluid.