A centrifugal separator (14) comprises a stationary frame (15), a spindle (16) rotatably supported by the frame, a centrifuge rotor 17 mounted to a first end of the spindle to rotate together with the spindle around an axis (X2) of rotation. A stack (10) of separation discs (1) is arranged to rotate coaxially with the centrifuge rotor The stack of separation discs comprises a set of axially aligned separation discs with an inner surface and an outer surface and a plurality spot-formed spacing members extending from a base from at least one of the inner surface and the outer surface The surface density of said spot-formed spacing members is above 25 spot-formed spacing members/dm.sup.2 throughout the inner and/or outer surface of the separation disc. A first region at a bottom of the discs has a higher density of the spot-formed spacing members than a second region.

A system and a method of continuously separating submicron thickness laminar solid particles from a solid suspension, segregating the suspension into a submicron thickness particle fraction suspension and a residual particle fraction suspension, the method comprising the steps of; providing a continuous centrifuge apparatus; providing a suspension of submicron thickness laminar solid particles in a solid suspension; wherein the solid suspension comprises the submicron thickness solid particles in a liquid continuous phase; separating the solid suspension in the apparatus.

A system and a method of continuously separating submicron thickness laminar solid particles from a solid suspension, segregating the suspension into a submicron thickness particle fraction suspension and a residual particle fraction suspension, the method comprising the steps of; providing a continuous centrifuge apparatus; providing a suspension of submicron thickness laminar solid particles in a solid suspension; wherein the solid suspension comprises the submicron thickness solid particles in a liquid continuous phase; separating the solid suspension in the apparatus.

A separation disc for a centrifugal separator is adapted to be included in a stack of separation discs inside a centrifugal rotor for separating a fluid mixture. The separation disc has a truncated conical shape with an inner surface and an outer surface and a plurality of spot-formed spacing members extending from at least one of the inner surface and the outer surface. The spot-formed spacing members are for providing interspaces between mutually adjacent separation discs in a stack of separation discs, and the plurality of spot-formed spacing members are tip-shaped and taper from a base at the surface of the separation disc towards a tip extending a height from the surface. A stack of separation discs, a centrifugal separator and a method for separating at least two components of a fluid mixture are also disclosed.

A separation disc for a centrifugal separator is adapted to be included in a stack of separation discs inside a centrifugal rotor for separating a fluid mixture. The separation disc has a truncated conical shape with an inner surface and an outer surface and a plurality of spot-formed spacing members extending from at least one of the inner surface and the outer surface. The spot-formed spacing members are for providing interspaces between mutually adjacent separation discs in a stack of separation discs, and the plurality of spot-formed spacing members are tip-shaped and taper from a base at the surface of the separation disc towards a tip extending a height from the surface. A stack of separation discs, a centrifugal separator and a method for separating at least two components of a fluid mixture are also disclosed.

A separation disc for a centrifugal separator is adapted to be included in a stack of separation discs inside a centrifugal rotor for separating a fluid mixture. The separation disc has a truncated conical shape with an inner surface and an outer surface and a plurality of spacing members extending from at least one of the inner surface and the outer surface. The spot-formed spacing members are for providing interspaces between mutually adjacent separation discs in a stack of separation discs. The separation disc further includes at least one elongated rib extending from the inner surface to a height (h) that is less than the height (H) to which said plurality of spacing members extend. Further, at least one elongated rib extends from first position on the inner surface to a second position on the inner surface, wherein the second position is at a radial distance that is larger than the radial distance of the first position, and the relation between the height of the elongated ribs (h) and the spacing members (H) are h/H>0.7.

A separation disc for a centrifugal separator is adapted to be included in a stack of separation discs inside a centrifugal rotor for separating a fluid mixture. The separation disc has a truncated conical shape with an inner surface and an outer surface and a plurality of spacing members extending from at least one of the inner surface and the outer surface. The spot-formed spacing members are for providing interspaces between mutually adjacent separation discs in a stack of separation discs. The separation disc further includes at least one elongated rib extending from the inner surface to a height (h) that is less than the height (H) to which said plurality of spacing members extend. Further, at least one elongated rib extends from first position on the inner surface to a second position on the inner surface, wherein the second position is at a radial distance that is larger than the radial distance of the first position, and the relation between the height of the elongated ribs (h) and the spacing members (H) are h/H>0.7.

A centrifugal separator for separating a liquid phase from crankcase gases of an internal combustion engine includes a separation chamber, a rotor shaft, a rotor inside the separation chamber, an inlet for crankcase gases, a gas outlet, and a liquid outlet for separated liquid phase. The centrifugal separator also includes a liquid outlet chamber, a check valve, and a rotating member. The liquid outlet chamber forms an individual chamber and is arranged in fluid communication with the separation chamber via a liquid passage. The rotating member is connected to the rotor shaft and is arranged inside the liquid outlet chamber. The liquid outlet forms an outlet of the liquid outlet chamber. The check valve is arranged in the liquid outlet.

A centrifugal separator for separating a liquid phase from crankcase gases of an internal combustion engine includes a separation chamber, a rotor shaft, a rotor inside the separation chamber, an inlet for crankcase gases, a gas outlet, and a liquid outlet for separated liquid phase. The centrifugal separator also includes a liquid outlet chamber, a check valve, and a rotating member. The liquid outlet chamber forms an individual chamber and is arranged in fluid communication with the separation chamber via a liquid passage. The rotating member is connected to the rotor shaft and is arranged inside the liquid outlet chamber. The liquid outlet forms an outlet of the liquid outlet chamber. The check valve is arranged in the liquid outlet.

A skid (700) for use in separating biocomponents includes a housing (701) bounding a compartment (708), the compartment being partially bounding by a mounting platform (709); and a loading assembly (800) secured to the housing so as to communicate with the compartment. The loading assembly (800) includes an alignment plate (808) having a top surface with cavity (814) recessed therein, the cavity communicating with the compartment; a drive rotor (15) rotatably disposed below the alignment plate and at least partially encircling the cavity, the drive rotor including one or more magnets; a motor (169) coupled to the drive rotor for selectively rotating the drive rotor about the cavity; and a mount at least partially encircling the drive rotor and communicating with the compartment, the mount including a mounting plate having one or more mounting elements upstanding therefrom, the mount being movable between a raised position wherein the mounting plate is aligned with the alignment plate and a second lowered position wherein the mounting plate is disposed at an elevation lower than the alignment plate.