摘要:
A system and method for vibration in a centrifuge is disclosed. A centrifuge (10) for removing more dense material from a fluid medium includes a fluid separation wall (26) placed within a non-rotating sleeve (12). The fluid separation wall (26) rotates around the axis of rotation and includes an inner surface and an outer surface with at least one receptacle (30) formed on the inner surface of the fluid separation wall. The receptacle aids in sepration of more dense material from the fluid medium by forming a void space between the inner and outer surface. An excitation apparatus associated with the receptacle to create a vibration within the receptacle. A flow path may extend through the wall from the void area to the outer sur face to transport more dense material to the containment zone (18).
摘要:
A nozzle removal assembly including an outlet nozzle for centrifuge rotors and cooperating hand tool. The nozzle has an improved structure for facilitating the installation within and removal from a rotor wall. The centrifuge nozzle includes a body portion having inlet and outlet ends wherein the outlet end includes a placement channel. The placement channel defines a radially inwardly facing engagement surface supported externally to the rotor wall for engagement with a hand tool. The hand tool is adapted for engaging the radially inwardly facing engagement surface of the placement channel wherein both rotational and axial forces may be applied to assist in the removal of the nozzle from the rotor wall. 5
摘要:
A centrifugal separator for separating heavy metals from lighter or includes a bowl (10) rotatable about its axis and defining annular collection areas (19, 20) on the peripheral surface of the bowl at axially spaced positions along the bowl. At the peripheral wall (11) in each area is provided a plurality of angularly spaced discharge openings (29) which are controlled by pinch valves (42) to periodically allow the radial escape of the collected material. The pinch valves of a first area (19) are controlled at different timing to the pinch valves of a second area (20) to vary the concentration of the materials collected in the different areas. The pinch valves are operated by a pressurized liquid system which is fed to the different areas through a swivel coupling mounted at a longitudinal shaft supporting the bowl.
摘要:
Rotor for a centrifugal separator, which rotor (1) during operation rotates in a space (4) and inside itself forms a chamber (12) and a passage (7), which extends radially outwardly from the chamber (12) to the outside of the rotor (1). In order to accomplish at low costs such a rotor (1), in which gas present in the chamber (12) and in the passage (7) does not generate sound, the passage (7) in the rotor is designed with a radially outer portion (13), which extends radially inwardly from the outside of the rotor (1), and which has a cross section perpendicular to the central axis of the passage (7), which in a plane perpendicular to the rotation axis through the central axis has an extension, which continuously decreases by the distance from the outside of the rotor (1) to a radially inner cross section, which has a certain extension in this plane and from the outside of the rotor (1) is located at a distance along the central axis, which at least is one third of the extension of the radially inner cross section in said plane, and that the extension of the cross section of the passage (7) at the outside of the rotor (1) in the plane is between four and nine thirds of the extension of the radially inner cross section in said plane.
摘要:
Les dispositifs de concentration par centrifugation de l'état antérieur de la technique, servant à séparer des particules d'une densité plus élevée d'une bouillie, ne pouvaient pas réaliser à la fois une séparation efficace du concentré et l'évacuation continue de ce dernier. La présente invention se rapporte à un dispositif de concentration par centrifugation à évacuation continue, comprenant une zone de retenue (B) servant à accumuler le concentré et pourvue d'une multiplicité de trémies à débit massique (35), des régulateurs de débit (37) étant prévus pour réguler l'évacuation du concentré à partir des trémies.
摘要:
A centrifugal separator for separating two liquid components from each other has normally continuously open outlets for both liquid components, an interface layer formed in the separating chamber between the separated liquid components being maintained at a predetermined radial level. The present invention concerns a special arrangement for continuous discharge of the light liquid component but intermittent discharge of the heavy liquid component. For this purpose a first outlet channel (20) in the centrifuge rotor for the heavy liquid component communicates through a calibrated opening (24) with a stationary second channel (23) outside the rotor, said second channel comprising a shut off valve (31). Sensing equipment (28) is arranged to sense when an interface layer formed in the separating chamber (8) of the rotor between the separated liquid components has moved radially inwards to a certain level (29), and provides a signal to a control unit (34) which opens the valve (31) for a time to allow the desired amount of heavy liquid component to be discharged from the separating chamber (8).
摘要:
To monitor operation of a centrifugal separator (21) having a rotor (22) with nozzles (1-16) through which sediment is discharged in jets (26), a sensing means (28) is provided for sensing the respective jets and producing a signal (U) dependent upon the amount of medium in the jets, which signal (U) is supplied to a device (38) which records the signals (U) and is responsive thereto to provide an output indicating a change in the amount of medium in one or more jets, e.g. due to a nozzle becoming blocked or increased in size by erosion, or the mixture supplied to the separator changing.
摘要:
Eine drehbare Zentrifugentrommel (1), die eine Mehrzahl von im Betrieb der Zentrifugentrommel rotierenden Trommelteilen aufweist, welche im zusammengebauten Zustand eine Drehachse (D) ausbilden, zeichnet sich dadurch aus, dass zwei oder mehr der Trommelteile derart ausgebildet sind, dass sie je für sich relativ zur Drehachse (D) eine Unwucht ausbilden, wobei sich ihre Einzelunwuchten aufheben.
摘要:
The invention refers to a sensor device and a centrifugal separator (1). The centrifugal separator comprises a stationary casing (2) and a centrifuge rotor (3), which is provided in the stationary casing and comprises nozzles (7) for discharge of a product. The sensor device comprises a transfer element (21), which has a first part (21') and a second part (21"). The first part (21') is located inside the casing and outside the centrifuge rotor and the second part (21") is located outside the casing. A receiving head (23) is comprised by the first part of the transfer element. A sensor element (25) is mounted to the second part of the transfer element. An evaluation unit (26) is connected to the sensor element via a conduit (27) for transmitting signals from the sensor element to the evaluation unit. The sensor element senses vibrations propagating from the receiving head to the sensor element. The transfer element is movable in relation to the centrifuge rotor and the stationary casing so that the position of the receiving head is adjustable.