摘要:
The disclosure concerns a centrifugal separator comprising a separator bowl (4) delimiting therein a separation space (12) and being configured to rotate about a rotational axis and nozzle members (20) arranged peripherally at the separator bowl (4). Each nozzle member (20) forms a nozzle outlet (24) providing a passage (26) from the separation space (12) to a space (28) outside the separator bowl (4). The centrifugal separator comprises a protective member (30) arranged downstream of each nozzle outlet (24) at an outer periphery of the separator bowl (4). The nozzle member (20) secures the protective member (30) in relation to the separator bowl (4), at least in one circumferential direction of the separator bowl (4).
摘要:
A centrifugal separator which enables extraction of particles as concentrated liquid of a uniform concentration under a low pressure without damaging to the particles and is particularly suitable for extraction of weak cells such as animal cells. The centrifugal separator includes a plurality of particle collecting chambers (104; 104a) partially defined by an inner wall face (121) of a rotor (103) the diameter of which increases substantially continuously and suddenly comparing with the diameter of another adjacent portion of the inner wall face of the rotor. Particles centrifugally separated from liquid in a separating chamber (109) in the rotor are introduced into the particle collecting chambers in which they are accelerated suddenly to form soil suspension having an increased fluidity. The soil suspension is then introduced into horizontally extending deriving pipes (105; 105a; 105b; 105c; 105d; 105e) of a small sectional area and then extracted to the outside by way of an extracting pipe (118).
摘要:
A hemapheresis system and method comprises a stationary closed housing (12) concentric about a central axis and a feed system that moves blood upwardly from the housing lower end toward an outlet (30) port adjacent a substantially closed upper end. Within the stationary housing (12) is a double walled rotor (14) concentric with the housing (12) and rotatable magnetically within the housing (12) on sealed end bearings. The space between the rotor walls defines a centrifugation gap into which whole blood is passed and within which centrifugal separation takes place as the rotor (14) is spun at a relatively low rate. At the upper end of the rotor (14), lighter matter such as plasma rich in platelets passes continuously inwardly to a central lengthwise passageway (68) leading to an outlet port (24) coaxial with the central axis, while heavier central matter flows through apertures (60) in the outer rotor wall to the upper outlet port (30). In one example the differential impedence is established by housing (12) and rotor (14) configurations which diverge outwardly with compound curvatures, and with space between rotor (14) and housing (12) leading to a closed end. In another example the housing-rotor space is of restricted cross section and an opposing flow of compatible fluid is introduced in an intermediate region of the flow path. These systems are biologically closed and permit continuous return of packed cells to a donor as plasma is collected.
摘要:
The invention relates to an outlet nozzle assembly (10) for use with a rotor of a centrifuge, especially for a nozzle separator (1), consisting of a cylindrical nozzle holder (11) to be mounted into a bore (12) in the bowl (4) of the centrifuge (1), a nozzle (13) to be fixed to the nozzle holder (11) and a wear tube (14) fitted into the nozzle (13). It is mainly characterized in that the nozzle (13) is mounted from the outside to the nozzle holder (11), the nozzle (13) has an axis (21) arranged in an acute angle (α) to the normal to the axis (20) of the bore (12) in the bowl (4) and that the opening (23) to the nozzle (13) is arranged asymmetrically in the nozzle holder (11), i.e. at a distance from the axis (20). With such a design high concentrated mineral suspension can be treated in a centrifuge (1) to separate different fractions of solids.
摘要:
Upon use of a nozzle centrifuge for separating oil, water and sand from a mixture thereof separated water and sand is continuously removed through nozzles (12), which are arranged at the periphery of the rotor of the nozzle centrifuge. Separated oil is discharged through a central outlet (13-15) in the rotor. Through a space (17) in the rotor, which communicates with the radially outer part (7b) of the rotor separating chamber (7), water may either be supplied under pressure to the rotor or be discharged from the rotor for maintaining an interface layer, which is formed in the separating chamber (7) between separated oil and separated water, at a predetermined radial level (22). A supply device (23-25) and a discharge device (26, 27) are adapted to supply to the rotor and discharge from the rotor, respectively, only so much water that is required for said purpose. The discharge device (26, 27) is separated from the supply device (23-25), so that discharged water need not be subjected to the pressure generated by or maintained in the supply device (23-25).
摘要:
The invention relates to a centrifuge, particularly a separator, comprising a centrifugal basket (28) that has a basket shell (1) provided with at least one or more solids discharge nozzles (2). The centrifuge is characterized in that at least one wear protection device is mounted and/or formed on said basket shell (1) while being situated in the area of the solids discharge nozzles (12).
摘要:
A grinding water treating apparatus for separating a processing refuse from grinding water used for processing a periphery of an eyeglass lens, the grinding water being introduced from an eyeglass lens processing apparatus, the grinding water treating apparatus includes: a centrifugal separator (206) that includes a dewatering tank (216) having a bottom surface and a side surface and a drive source (225) for rotating the dewatering tank, and springs out the grinding water to an upper portion of the dewatering tank by rotating the dewatering tank; and a drain pipe (201) that introduces the grinding water from an upper portion of the dewatering tank. The centrifugal separator includes a filter (250) arranged at the upper portion of the dewatering tank and having an opening inserted with the drain pipe for filtering the grinding water separated from the processing refuse by a centrifugal force generated due to rotation of the dewatering tank.
摘要:
The invention relates to a method and device for obtaining stearin from animal or vegetable fats. The invention aims to provide a method according to which the separation efficiency between the oil and the stearin phase can be kept constant for the duration of a production period so as to achieve optimal stearin quality and yield. According to said method, crystallized oil having a temperature of between 10 DEG C and 40 DEG C is introduced into the inlet (12) of a non-selfunloading nozzle centrifuge (11) fitted with a stack of plates (15) and an immobile grasping element (16) for the oil phase. The solid phase is guided through flow spaces which narrow towards the nozzles (20) and discharged through said nozzles. To achieve a high separation efficiency between the stearin phase and the oil phase the ratio of flow input to nozzle output is set at between 2:1 and 4:1. Said method is used for obtaining stearin from animal or vegetable fats.
摘要:
Bei einem Separator, dessen Zentrifugentrommel aus zwei miteinander rotationssymmetrisch verbundenen, insbesondere konischen Teilen (1,23) besteht, bilden die konischen Teile (1, 3) im Bereich ihres größeren Durchmessers einen veränderlichen Ringspalt (4) für den Außlaß der Feststoffe. Um die rotationssymmetrischen Teile (1,2,3) der Zentrifugentrommel in besonders einfacher, raum- und kostensparender Weise miteinander zu verbinden, sind dieZentrifugentrommelteile (1, 2, 3) durch Bolzen (9) miteinander verbunden, die im peripheren Bereich in Umfangsrichtung gleichmäßig verteilt angeordnet sind.