Abstract: A separation disc for a centrifugal separator and a method for manufacturing the separation disc are disclosed. The separation disc is of metal material and adapted to be compressed in a stack of separation discs inside a centrifugal rotor for separating a liquid mixture. The separation disc has a truncated conical shape with an inner surface and an outer surface and a plurality of spacing members extending a certain height above at least one of the inner surface and the outer surface for providing interspaces between mutually adjacent separation discs in the stack. The spacing members are of such small size that each one of them has a width which is less than 2 mm along the surface of the separation disc. The surface of the separation disc is configured with a distribution pattern of the small-sized spacing members, in such a way as to provide equidistant interspaces in the compressed disc stack.

Abstract: A non-drip applicator that allows easy lubrication and seasoning of barbecue grilling grates or griddle cooking surfaces in an easy, fire safe, and efficient manner is described and claimed. The tool includes a body, an applicator, and, optionally, an irrigation system. The applicator may retain a supply of cooking oil therein, or cooking oil may be transferred to the applicator via the irrigation system. The application of pressure to the applicator by pressing it against the grill cooking elements causes cooking oil to be transferred from the applicator to the cooking elements. The applicator may be rotatably connected to the tool body, allowing the user to oil the grill by rolling the applicator along the grill cooking elements.

Abstract: A separator includes a rotatable centrifugal drum having a vertical axis of rotation. The separator includes a rotatable drive spindle to drive the drum, an hydraulic system located in an interior of the drum and at least one feed line to feed a control fluid to the drum, the at least one feed line having an outlet region. Further included is a ring non-rotatably connected to the drum, a gap located between one of the drive spindle and the drum and the drive spindle and the ring. The feed line leads out radially in front of the drive spindle in the outlet region. The outlet region is oriented and configured such that emerging control fluid is spread directly against the drive spindle, and a portion of the control fluid enters through the gap into the hydraulic system.

Abstract: A cell suspension that contains a cell group from which unwanted components have been removed by efficiently washing the cell group is recovered. A centrifuge container (1) includes a cylindrical container main body (2) that accommodates a cell suspension and is rotated with a bottom portion (2a) being directed radially outward; a supernatant suction tube (4) that has a first opening (4a) at a position in the depth direction of the container main body (2) and that suctions a supernatant obtained by centrifuging the cell suspension, in the radial direction of the container main body (2); and a washing-fluid discharge tube (3) that have a second opening (3a) at a position in the depth direction of the container main body (2) and that discharge a washing fluid in the axial direction toward the bottom portion (2a) of the container main body (2).

Abstract: The invention refers to a decanter centrifuge particularly for sludge centrifugation, incorporating a drum, a rotor arranged therein and equipped with a helical screw for feed of sludge, a sludge outlet and a reject outlet and a flush washing device for washing (flushing) in countercurrent to the dewatered sludge. In the rotor in close connection to the blades of the helical screw are provided a number of threaded holes for connection of the nozzles of the flush washing device. In response to the washing requirement, certain or entire groups of threaded holes are closable by means of sealing plugs, so that the washing (flushing) can be effected in several consecutive steps with portions without flushing in between.

Abstract: A system for separating a fluid having heavier and lighter components. The system includes a rotor having a rigid mounting member and an elastic diaphragm attached to the mounting member, the diaphragm defining a chamber. The system also includes a chuck for holding the rigid mounting member of the rotor and for spinning the rotor around an axis. The pressure of a control fluid, preferably a control gas, disposed adjacent the rotor's diaphragm is varied in order to control the volume of the rotor. Pressurizing the control gas causes fluid to flow out of the rotor; applying a vacuum to the diaphragm draws fluid into the rotor.

Abstract: A centrifugal separator with substantially continuous discharge of the concentrate comprises a centrifuge drum with axially spaced rings projecting inwardly from the peripheral wall of the drum. The material between the rings is fluidized by injection of water. Each channel between the rings has a number of exit openings at the base of the channel for discharge of the concentrate. Each exit opening includes a pinch valve to restrict the discharge to predetermined time periods. Each exit includes injection openings around the exit for injecting water to replace the material discharged to maintain the fluidization between the channel.

Abstract: A centrifuge bowl of the type having a shell including a peripheral wall and a cast inner liner attached to the inside surface of the peripheral wall is modified by the provision of a plurality of punched channel portions which extend inwardly into the bowl from peripheral wall to define a U-shaped channel with severed ends. During the casting process the casting plastics material extends into the recess behind each channel portion and thus when set forms an insert portion which anchors the liner to the channel portion and thus to the peripheral wall. Openings for the entry of fluidizing water are then drilled through the insert portion from the outside of the shell through one end of the channel portion and through the liner into the interior of the bowl.

Abstract: A centrifugal separator for extracting heavy metals from a slurry comprises a centrifuge bowl having an inwardly facing surface over which the slurry runs. A dam at a discharge end of the surface forms a shallow layer of particles which separate preferentially the heavy metals. The surface includes a portion formed by a plurality of annular membrane portions spaced axially and separated by radial rings extending from the surface to a supporting metal bowl. The membranes are deflated or retracted to gradually form annular cups for receiving the separated metals. The membranes are then inflated to discharge the collected materials while the feed is temporarily halted and the bowl continues to rotate.