EP3760318B1 - Centrifugeuse à cisaillement - Google Patents

Centrifugeuse à cisaillement Download PDF

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Publication number
EP3760318B1
EP3760318B1 EP20175188.0A EP20175188A EP3760318B1 EP 3760318 B1 EP3760318 B1 EP 3760318B1 EP 20175188 A EP20175188 A EP 20175188A EP 3760318 B1 EP3760318 B1 EP 3760318B1
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EP
European Patent Office
Prior art keywords
filter drum
drive motor
shaft
output shaft
drive
Prior art date
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Application number
EP20175188.0A
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German (de)
English (en)
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EP3760318A1 (fr
Inventor
Dieter Scherer
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Andritz Separation GmbH
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Andritz Separation GmbH
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Publication of EP3760318A1 publication Critical patent/EP3760318A1/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B9/00—Drives specially designed for centrifuges; Arrangement or disposition of transmission gearing; Suspending or balancing rotary bowls
    • B04B9/02—Electric motor drives
    • B04B9/04—Direct drive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B3/00—Centrifuges with rotary bowls in which solid particles or bodies become separated by centrifugal force and simultaneous sifting or filtering
    • B04B3/02—Centrifuges with rotary bowls in which solid particles or bodies become separated by centrifugal force and simultaneous sifting or filtering discharging solid particles from the bowl by means coaxial with the bowl axis and moving to and fro, i.e. push-type centrifuges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B9/00—Drives specially designed for centrifuges; Arrangement or disposition of transmission gearing; Suspending or balancing rotary bowls
    • B04B9/08—Arrangement or disposition of transmission gearing ; Couplings; Brakes

Definitions

  • the invention relates to a pusher centrifuge.
  • Such pusher centrifuges are used in many chemical applications and the processing of raw materials, for example.
  • a solid portion and a liquid portion of a solid-liquid mixture are separated from each other in a filter drum device of the pusher centrifuge by means of a rotational movement and the solid portion is moved out of the filter drum device of the pusher centrifuge by means of an axial oscillating thrust movement.
  • a conventional pusher centrifuge generally has two electric motors with which the rotation movement and the axial oscillating push movement are each generated, with a respective torque of the two electric motors being applied to the filter drum device and to a hydraulic pump for this purpose.
  • Such pusher centrifuges are, for example, from the DE 10 2011 055 513 A1 and the EP 2 633 918 A2 known.
  • the invention creates a pusher centrifuge that can be manufactured and maintained more easily and cost-effectively.
  • the invention provides a pusher centrifuge which has: a rotatable (e.g. rotatable about a filter drum longitudinal axis) filter drum with at least one drum body and with a pushing floor which is arranged in the filter drum, the pushing floor and the at least one drum body being axial relative to one another (in the longitudinal direction of the filter drum) can be moved back and forth, a filter drum drive shaft (e.g. coaxial with the filter drum longitudinal axis) which is non-rotatably connected to the filter drum (e.g. and which extends in the longitudinal direction of the filter drum), a hydraulic push mechanism for generating one axial oscillating thrust force (e.g.
  • an axial-oscillating axial thrust force which is connected to the filter drum in such a way that the axial oscillating thrust force generated by it causes a or the relative back-and-forth movement between the thrust floor and the drum body is transmitted to the filter drum, a hydraulic pump for generating a hydraulic pressure, which has a pump input shaft and is fluidly connected to the hydraulic thrust mechanism for supplying the hydraulic pressure to the hydraulic thrust mechanism to operate it to generate the axial oscillating thrust force, and a drive motor (e.g a single (e.g.
  • main) drive motor having an output shaft connected to the pump input shaft and the filter drum drive shaft for transmitting drive motor torque to both the pump input shaft and the filter drum drive shaft (in operation), wherein the output shaft of the drive motor is connected to the pump input shaft to form a direct drive in a gear-free manner (e.g. without an intermediate gear, e.g. without sub-gear and/or gear ratio), wherein the (e.g. second) output shaft of the drive motor is connected to the filter drum drive shaft by means of a belt is.
  • the output shaft of the drive motor can have a first output shaft and a second output shaft, which extend from the drive motor on opposite (e.g. opposite) sides of the drive motor (e.g. coaxial to one another), the first output shaft being gearless with the pump input shaft to form a direct drive ( e.g. without an intermediate gear, e.g. without under- and/or transmission) and the second output shaft is connected to the filter drum drive shaft.
  • the (e.g. first) output shaft of the drive motor can be connected to the pump input shaft via a coupling.
  • the belt can be a V-belt, for example a V-ribbed belt, or a toothed belt.
  • the (eg second) output shaft of the drive motor can also be connected to the filter drum drive shaft in a gear-free manner (eg without an intermediate gear, eg without reduction and/or transmission) to form a direct drive.
  • the (e.g. first) output shaft of the drive motor can also be used here the pump input shaft as previously described via one or the clutch and the (e.g. second)
  • the output shaft of the drive motor may be connected to the filter drum drive shaft via a drive shaft coupling.
  • the drive motor may further comprise a drive pulley which is non-rotatably connected to the output shaft of the drive motor, and the filter drum drive shaft may further comprise an output pulley, wherein the drive pulley and the output pulley are connected by means of a (e.g. the) belt can be connected to connect the output shaft of the drive motor to the filter drum drive shaft.
  • the output pulley can be connected to the filter drum drive shaft in a rotationally fixed manner or can be formed integrally (e.g. in one piece) with the filter drum drive shaft.
  • the drive pulley can be connected in a rotationally fixed manner to the output shaft of the drive motor or can be formed integrally (e.g. in one piece) with the output shaft of the drive motor.
  • Hydraulic pumps used in pusher centrifuges are usually available to match an electric motor that drives them, so that the motor operating speed matches the pump operating speed per se. This allows the direct drive according to the invention to be carried out between the drive motor and the hydraulic pump without loss. In contrast, different speeds are sometimes required for the filter drum of the pusher centrifuge, depending on the material to be centrifuged (e.g. a solid-liquid mixture to be centrifuged, e.g. a suspension to be centrifuged).
  • the filter drum of the pusher centrifuge according to the invention can be driven by the drive motor by means of a belt via respectively assigned pulleys, a reduction or a translation between the output shaft of the drive motor and the filter drum drive shaft can be easily realized by exchanging the respective pulleys, so that the Speed can be adjusted as required.
  • the hydraulic pump, the clutch and the drive pulley can be arranged on the same side of the drive motor.
  • the hydraulic pump, the clutch and the drive pulley e.g. the belt wrapping around the drive pulley
  • the hydraulic pump, the clutch and the drive pulley e.g. the belt wrapping around the drive pulley
  • the hydraulic pump, the clutch and the drive pulley can be in the order drive pulley (or belt) - clutch - hydraulic pump (ie in the order drive motor-drive pulley (or belt)-clutch-hydraulic pump) may be arranged along an axial direction (eg, a longitudinal direction) of the output shaft of the drive motor.
  • the coupling can be a non-releasable coupling.
  • the non-releasable coupling may be a non-releasable compliant coupling (e.g., any of a claw coupling, a toothed coupling, a spring bar coupling, or a Phillips coupling).
  • the clutch can be a safety clutch, optionally a safety slip clutch.
  • the coupling can be a safety coupling with overload protection, which has a predetermined breaking point, optionally in the form of a shear pin.
  • the coupling can be an elastic coupling, optionally an elastic claw coupling.
  • coaxial alignment differences e.g. an axis error, e.g. an alignment error
  • assembly and/or manufacturing can occur between the output shaft of the drive motor and the pump input shaft (e.g. during operation) can be compensated for so that smooth operation of the hydraulic pump and the drive motor can be achieved.
  • the output shaft of the drive motor and the pump input shaft can be at least substantially coaxial with one another.
  • the output shaft of the drive motor and the filter drum drive shaft are at least substantially parallel to one another and are not coaxial with one another.
  • the drive motor can be an electric motor, for example a three-phase asynchronous motor.
  • the electric motor can, for example, have a power of 160kW ⁇ 20% (e.g. 160kW ⁇ 10%, e.g. 160kW ⁇ 5%), but electric motors with any power can be used in the pusher centrifuge described herein, provided that their motor power is suitable for the area of application of the pusher centrifuge suitable is.
  • the electric motor may be connected to a control device for controlling the electric motor and may be electrically connected to a power source for power supply.
  • the drive motor is not limited to a motor operated with electric current, but can also be designed, for example, as an internal combustion engine.
  • the filter drum drive shaft can have: an outer filter drum drive shaft, which is formed as a hollow shaft, and an inner filter drum drive shaft, which is axially movably mounted in the outer filter drum drive shaft and which is connected to the filter drum and the hydraulic push mechanism in such a way, that from it the axial oscillating thrust force is transmitted from the hydraulic thrust mechanism to the filter drum in order to effect the relative back-and-forth movement between the thrust floor and the drum body.
  • the relative back-and-forth movement between the push floor and the drum body may be a back-and-forth movement of the push floor relative to the at least one drum body (and/or vice versa).
  • the pusher centrifuge can, for example, be multi-stage, with the filter drum then having several drum bodies corresponding to the number of stages, for example, the pusher centrifuge can be designed, for example, as a two-stage pusher centrifuge with an outer first drum body and an inner second drum body.
  • the pusher centrifuge can accordingly have, for example, a rotatable filter drum (e.g.
  • the pusher centrifuge can also have three or more stages with corresponding three or more drum bodies.
  • the inner filter drum drive shaft can be connected to the inner second drum body (e.g. in a rotationally fixed manner).
  • the outer filter drum drive shaft can be connected to the outer first drum body (e.g. in a rotationally fixed manner).
  • the moving floor can be connected to the outer first drum body (e.g. in a rotationally fixed manner) via rods extending axially through the inner second drum body.
  • the pusher centrifuge can also have: a feed device with a feed line, via which a solid-liquid mixture to be filtered (e.g. a suspension to be filtered) can be fed into the inner second drum body and the outer first drum body (and thus into the filter drum), a Solids removal device, by means of which a sieved or filtered solid portion of the solid-liquid mixture can be removed from the filter drum, and a liquid removal device, by means of which the liquid portion of the solid-liquid mixture can be removed from the filter drum.
  • a feed device with a feed line via which a solid-liquid mixture to be filtered (e.g. a suspension to be filtered) can be fed into the inner second drum body and the outer first drum body (and thus into the filter drum)
  • a Solids removal device by means of which a sieved or filtered solid portion of the solid-liquid mixture can be removed from the filter drum
  • a liquid removal device by means of which the liquid portion of the solid-liquid mixture can be removed from the filter drum.
  • a second belt (and according to a described exemplary embodiment a first and a second belt) can be dispensed with and therefore, for example, an associated storage, an associated belt guard, an associated adjustment mechanism, an associated lubrication, etc. can be dispensed with (mechanical belt tensioning devices can also be dispensed with during maintenance work on the pusher centrifuge).
  • the pusher centrifuge according to the invention in which the output shaft of the drive motor is connected to the pump input shaft of the hydraulic pump in a gearless manner to form a direct drive, has increased efficiency compared to conventional pusher centrifuges.
  • the pusher centrifuge according to the invention has a more reliable hydraulic system (ie the hydraulic pump, the fluid-connected hydraulic thrust mechanism, etc.) can have an increased service life.
  • the installation effort and the installation costs of a pusher centrifuge can be reduced, since an electrical infrastructure (ie power supply cabling, safety boxes, etc.) is necessary for only one electric motor.
  • Fig. 1-5 has a pusher centrifuge 1 (for a solid-liquid separation of a solid-liquid mixture, for example a suspension): a filter drum 3 (in Figs. 2-4 short: FT) with at least one drum body 5 and with a pushing floor 7 which is arranged in the filter drum 3, the pushing floor 7 and the at least one drum body 5 being movable back and forth axially (in the longitudinal direction of the filter drum 3) relative to one another, one Filter drum drive shaft 9, which is non-rotatably connected to the filter drum 3 (e.g. and which extends in the longitudinal direction of the filter drum 3), a hydraulic thrust mechanism 11 for generating an axial oscillating thrust force (e.g.
  • an axial-oscillating axial thrust force which is connected to the Filter drum 3 is connected in such a way that the axial oscillating thrust force generated by it is transmitted to the filter drum 3, causing a or the relative back-and-forth movement between the pushing floor 7 and the drum body 5, a hydraulic pump 13 (in Figs. 2-4 short: HP) for generating a hydraulic pressure, which has a pump input shaft 15 (with a pump input shaft longitudinal axis A2) and which is fluidly connected to the hydraulic thrust mechanism 11 for supplying the hydraulic pressure to the hydraulic thrust mechanism 11 in order to generate the axial oscillating thrust force operate, and a drive motor 17 (e.g. a single (e.g. main) drive motor) (in Figs.
  • a drive motor 17 e.g. a single (e.g. main) drive motor
  • M which has an output shaft 19 (with an output shaft longitudinal axis A3) which is connected to the pump input shaft 15 and the filter drum drive shaft 9 in order to apply a torque of the drive motor 17 to both the pump input shaft 15 and the filter drum drive.
  • the output shaft 19 of the drive motor 17 being connected to the pump input shaft 15 in a gear-free manner (for example without an intermediate gear, for example without under- and/or transmission) to form a direct drive.
  • the drive motor 17 further has a motor housing 21 with a motor flange 23 and a lantern 25, the motor flange 23 being positioned on the same side of the drive motor 17 as the output shaft 19 and being firmly (eg rigidly) connected to one end 25a of the lantern 25 .
  • the hydraulic pump 13 further has a pump housing 27, with another end 25b of the lantern 25 being flanged to this (the pump housing 27) (eg firmly connected to it).
  • the lantern 25 extends between one end 25a and the other end 25b along an axial direction of the output shaft 19 and, for example, partially surrounds the output shaft 19 in a direction directed radially outward from the output shaft 19 (for example by means of longitudinal webs, for example by means of longitudinal sections in the circumferential direction circumferential wall interrupted by the lantern).
  • the motor housing 21 and the pump housing 27 are connected to one another via (for example by means of) a lantern 25.
  • the lantern 25 can be designed as, for example, a turned part (ie at least manufactured by turning).
  • the output shaft 19 of the drive motor 17 is connected to the pump input shaft 15 via a clutch 29, in this case via a dog clutch.
  • the output shaft 19 of the drive motor 17 can be connected to the filter drum drive shaft 9 by means of a belt 31, in the present case by means of a V-belt (and connected in the assembled state, see Fig. 2 ), which can be attached between the coupling 29 and the motor housing 21 (ie also the motor flange 23) (and is attached in the assembled state, see Fig. 2 ).
  • the drive motor 17 also has a drive pulley 33, which is coaxially connected to a free end of the output shaft 19 of the drive motor 17 in a rotationally fixed manner, and the filter drum drive shaft 9 also has an output pulley 35 (see Fig.
  • the drive pulley 33 has a (for example essentially cylindrical) projection 37 on a surface of the drive pulley 33 facing away from the drive motor 17 or on a surface of the drive pulley 33 facing the hydraulic pump 13 (with respect to a longitudinal direction of the output shaft 19) , from which this (the projection 37) extends towards the hydraulic pump 13.
  • the projection 37 is at least substantially coaxial with the output shaft 19 and the pump input shaft 15.
  • the projection 37 has a free end and the pump input shaft 15 has a free end, the coupling 29 being disposed between and on the respective free ends of the projection 37 and the pump input shaft 15 (the free ends) is connected (for example mounted) in a rotationally fixed manner in order to connect these free ends (and thus the output shaft 19 of the drive motor 17 and the pump input shaft 15 of the hydraulic pump 13) to one another, so that a torque from the drive motor 17 directly to the hydraulic pump 13 or whose pump input shaft 15 can be transmitted without a gearbox (or is transmitted during operation) (via the output shaft 19, the drive pulley 33, the projection 37, the clutch 29 and the pump input shaft 15).
  • the term "gear-free” does not exclude the possibility that a sub-gear and/or translation takes place within the hydraulic pump 13 (e.g. within the pump housing 27) by means of a pump input gear, which, however, is in the hydraulic pump 13 or thus integrally as a structural unit is trained.
  • connection "drive motor 17/hydraulic pump 13" occurs through a claw clutch, which is mounted directly on the drive pulley 33 as previously described (via the projection 37), all that is required to change the belt 31 is the clutch 29 (i.e. the claw clutch ) must be dismantled so that a gap is created through which an old (e.g. worn) belt can be removed and through which a new belt can be inserted. This can make maintenance (e.g. drive maintenance) of the pusher centrifuge 1 easier and faster.
  • the output shaft 19 of the drive motor 17 and the pump input shaft 15 are (eg at least substantially) coaxial with one another (see also their longitudinal axes A2, A3), and as in Figs. 1 and 5 is shown, the output shaft 19 of the drive motor 17 and the filter drum drive shaft 9 are (eg at least substantially) parallel to each other (see also their longitudinal axes A1, A2).
  • the drive motor 17 is an electric motor, in this case a three-phase asynchronous motor, with an output of 160kW ⁇ 20% (eg 160kW ⁇ 10%, eg 160kW ⁇ 5%).
  • the electric motor is connected to a control device (not shown in the figures) and electrically connected to a power source 39 by means of a power line 41.
  • Pusher centrifuge 1 shown also has a hydraulic supply system 43 with, for example, an oil tank 45, to which the hydraulic pump 13 is fluidly connected in order to be supplied with a hydraulic fluid, for example oil.
  • the hydraulic pump 13 is further fluidly connected to the hydraulic thrust mechanism 11 by means of a fluid line 47 in order to be able to provide (for example supply) the hydraulic pressure generated by it to the hydraulic thrust mechanism 11.
  • the hydraulic pump 13, the clutch 29 and the drive pulley 33 are on the same side (at Fig. 1 on the left side and at Fig. 2 on the right side) of the drive motor 17.
  • the following arrangement sequence (along an axial direction of the output shaft 19 of the drive motor 17) is realized: drive motor 17, drive pulley 33 (in the assembled state together with the belt 31, see Fig. 2 ), clutch 29 and then hydraulic pump 13.
  • the embodiment of Fig. 3 is generally like the embodiments of Figs. 1 and 2 trained, so only the differences are described below.
  • the output shaft 19 of the drive motor 17 has a first output shaft 19a and a second output shaft 19b, which extend from the drive motor 17 on opposite (or opposite) sides (ie according to Fig. 3 on a left and a right side) of the drive motor 17 extend coaxially to one another.
  • the first output shaft 19a is in an analogous manner to the embodiment of Figs.
  • the hydraulic pump 13, the clutch 29 are on the same side (in Fig. 3 on the right side) of the drive motor 17 arranged and the drive pulley 33 and the belt 31 are on another same side (in Fig. 3 on the left side) of the drive motor 17, which is opposite to the same side of the drive motor 17.
  • the following arrangement sequence (along an axial direction of the pump input shaft 15) is realized: hydraulic pump 13, clutch 29, drive motor 17 (or first output shaft 19a, drive motor 17, second output shaft 19b) and then Drive pulley 33 together with the belt 31.
  • FIG. 4 Another embodiment is shown, which is generally like the embodiment of Fig. 3 is designed, so that only the differences are described below.
  • the second output shaft 19b of the drive motor 17 is connected to the filter drum drive shaft 9 in a gear-free manner (for example without an intermediate gear, for example without reduction and/or transmission) to form a direct drive.
  • the first output shaft 19a of the drive motor 17 is connected to the pump input shaft 15 via a clutch 29 as described above, and the second output shaft 19b of the drive motor 17 is connected to the filter drum drive shaft 9 via a drive shaft clutch 49.
  • Fig. 4 Another embodiment is shown, which is generally like the embodiment of Fig. 3 is designed, so that only the differences are described below.
  • the second output shaft 19b of the drive motor 17 is connected to the filter drum drive shaft 9 in a gear-free manner (for example without an intermediate gear, for example without reduction and/or transmission) to form a direct drive.
  • the first output shaft 19a of the drive motor 17 is connected to the pump input shaft 15 via a
  • the filter drum drive shaft 9 has: an outer filter drum drive shaft 9a, which is formed as a hollow shaft, and an inner filter drum drive shaft 9b, which is axially movably mounted in the outer filter drum drive shaft 9a and which is connected to the filter drum 3 and the hydraulic Push mechanism 11 is connected (or operatively connected) in such a way that the axial oscillating thrust force is transmitted from the hydraulic push mechanism 11 to the filter drum 3 (in operation) in order to control the relative back-and-forth movement between the push floor 7 and the drum body 5 to effect.
  • the pusher centrifuge 1 with the previously described filter drum drive shaft 9 (from Fig. 5 ) is designed as a two-stage pusher centrifuge 1 with an outer first drum body 5a and an inner second drum body 5b.
  • the pusher centrifuge 1 accordingly has: the rotatable filter drum 3 with the outer first drum body 5a and the inner second drum body 5b and with the pushing floor 7, which is arranged within the filter drum 3 in the inner second drum body 5b and with the outer first drum body 5a is connected, wherein the inner second drum body 5b is movable back and forth relative to the pushing floor 7 and the outer first drum body 5a (in the longitudinal direction of the filter drum 3) (caused by means of said axial oscillating thrust force).
  • the moving floor 7 is connected in a rotationally fixed manner to the outer first drum body 5a via rods 51 which extend axially through the inner second drum body 5b.
  • the inner filter drum drive shaft 9b is connected in a rotationally fixed manner to the inner second drum body 5b.
  • the outer filter drum drive shaft 9a is rotatably connected to the outer first drum body 5a at one (longitudinal) end thereof and is rotatably connected to the output pulley 35 at another opposite (longitudinal) end thereof.
  • the hydraulic pushing mechanism 11 is arranged (eg, installed) in (eg, within) the driven pulley 35.
  • the output pulley 35 has a receiving space 35a for accommodating or receiving the hydraulic push mechanism 11.
  • the hydraulic push mechanism 11 has: a piston element 59, which divides the receiving space 35a into a first hydraulic pressure chamber 53 and a second hydraulic pressure chamber 55 in a fluid-tight manner and which is connected to the inner filter drum drive shaft 9b in a rotationally fixed and axially fixed manner, a pilot control slider 57 and a main control slider (not shown in the figures) which is controlled by means of the pilot control slider 57 to assume either a first position state or a second position state.
  • a fluid guide (not shown in the figures) is formed in the piston member 59, which is connected to the fluid line 47 so as to receive hydraulic pressure from the hydraulic pump 13, and which is configured so that when the main control spool is in is the first position state, the hydraulic pressure is supplied to the first hydraulic pressure chamber 53 (and a hydraulic pressure in the second hydraulic pressure chamber 55 is released), and when the main control spool is in the second position state is, the hydraulic pressure is supplied to the second hydraulic pressure chamber 55 (and a hydraulic pressure in the first hydraulic pressure chamber 53 is released).
  • the pilot control slider 57 is configured to control the main control slider to alternately assume the first position state and the second position state by alternately axially deflecting the opposite end walls, so that the generated axial thrust force is in an oscillating manner Way acts on the piston 59 to cause the relative back and forth movement between the pushing floor 7 and the drum body 5, in this case the inner second drum body 5b.
  • the pusher centrifuge 1 can also have: a feed device 61 with a feed line 63, via which a solid-liquid mixture to be filtered (e.g. a suspension to be filtered) into the inner second drum body 5b and the outer first drum body 5a (and thus into the filter drum 3) can be fed, a solids removal device 65, by means of which a sieved or filtered out solid portion of the solid-liquid mixture can be removed from the filter drum 3, and a liquid removal device 67, by means of which the liquid portion of the solid Liquid mixture can be removed from the filter drum 3.
  • a feed device 61 with a feed line 63 via which a solid-liquid mixture to be filtered (e.g. a suspension to be filtered) into the inner second drum body 5b and the outer first drum body 5a (and thus into the filter drum 3) can be fed
  • a solids removal device 65 by means of which a sieved or filtered out solid portion of the solid-liquid mixture can be removed from the filter drum 3

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  • Centrifugal Separators (AREA)

Claims (13)

  1. Centrifugeuse à cisaillement (1), comprenant :
    un tambour filtrant rotatif (3) avec au moins un corps de tambour (5) et un fond de poussée (7) qui est disposé dans le tambour filtrant (3), le fond de poussée (7) et le au moins un corps de tambour (5) étant mobiles axialement en va-et-vient l'un par rapport à l'autre,
    un arbre d'entraînement (9) du tambour filtrant, qui est relié solidairement en rotation avec le tambour filtrant (3),
    un mécanisme de poussée hydraulique (11) pour générer une force de poussée oscillante axiale, qui est relié au tambour filtrant (3) de telle sorte que la force de poussée oscillante axiale qu'il génère est transmise au tambour filtrant (3) en provoquant le mouvement de va-et-vient relatif entre le fond de poussée (7) et le corps de tambour (5),
    une pompe hydraulique (13) pour générer une pression hydraulique, présentant un arbre d'entrée de pompe (15) et étant en communication de fluide avec le mécanisme de poussée hydraulique (11) pour fournir la pression hydraulique au mécanisme de poussée hydraulique (11) afin de l'actionner pour générer la force de poussée oscillante axiale, et
    un moteur d'entraînement (17) présentant un arbre de sortie (19 ; 19a, 19b) relié à l'arbre d'entrée de pompe (15) et à l'arbre d'entraînement de tambour filtrant (9) pour transmettre un couple du moteur d'entraînement (17) à la fois à l'arbre d'entrée de pompe (15) et à l'arbre d'entraînement de tambour filtrant (9),
    l'arbre de sortie (19 ; 19a) du moteur d'entraînement (17) étant relié sans engrenage à l'arbre d'entrée de la pompe (15) en formant un entraînement direct,
    caractérisée en ce que
    l'arbre de sortie (19 ; 19b) du moteur d'entraînement (17) est relié à l'arbre d'entraînement de tambour filtrant (9) au moyen d'une courroie (31).
  2. Centrifugeuse à cisaillement (1) selon la revendication 1,
    dans laquelle l'arbre de sortie (19 ; 19a, 19b) du moteur d'entraînement (17) présente un premier arbre de sortie (19a) et un deuxième arbre de sortie (19b) qui s'étendent depuis le moteur d'entraînement (17) sur des côtés opposés du moteur d'entraînement (17), et
    dans laquelle le premier arbre de sortie (19a) est relié à l'arbre d'entrée de pompe (15) sans engrenage, formant un entraînement direct, et le deuxième arbre de sortie (19b) est relié à l'arbre d'entraînement du tambour filtrant (9).
  3. Centrifugeuse à cisaillement (1) selon la revendication 1 ou 2, dans laquelle l'arbre de sortie (19 ; 19a) du moteur d'entraînement (17) est relié à l'arbre d'entrée de la pompe (15) au moyen d'un accouplement (29).
  4. Centrifugeuse à cisaillement (1) selon les revendications 1 et 3, à l'exclusion de la revendication 2, dans laquelle la pompe hydraulique (13), l'accouplement (29) et une poulie d'entraînement (35) associée à la courroie (31) sont disposés sur l'arbre de sortie (19 ; 19a) du moteur d'entraînement (17) sur un même côté du moteur d'entraînement (17).
  5. Centrifugeuse à cisaillement (1) selon la revendication 4, dans laquelle, à partir du moteur d'entraînement (17), la pompe hydraulique (13), l'accouplement (29) et la poulie d'entraînement (35), dans l'ordre, sont disposés le long d'une direction axiale de l'arbre de sortie (19) du moteur d'entraînement (17).
  6. Centrifugeuse à cisaillement (1) selon l'une quelconque des revendications 1, 2, 4 et 5 en combinaison avec la revendication 3, dans laquelle l'accouplement (29) est un accouplement non amovible.
  7. Centrifugeuse à cisaillement (1) selon l'une quelconque des revendications 1, 2, 4 et 5 en combinaison avec la revendication 3, dans laquelle l'accouplement (29) est un accouplement de sécurité, éventuellement un accouplement à friction de sécurité.
  8. Centrifugeuse à cisaillement (1) selon l'une quelconque des revendications 1, 2, 4 et 5, en combinaison avec la revendication 3, dans laquelle l'accouplement (29) est un accouplement de sécurité avec une protection contre les surcharges, qui présente un point de rupture théorique, éventuellement sous la forme d'une goupille de cisaillement.
  9. Centrifugeuse à cisaillement (1) selon l'une quelconque des revendications 1, 2 et 4 à 8, en combinaison avec la revendication 3, dans laquelle l'accouplement (29) est un accouplement élastique, éventuellement un accouplement à griffes élastique.
  10. Centrifugeuse à cisaillement (1) selon l'une quelconque des revendications 1 à 9,
    dans laquelle le moteur d'entraînement (17) présente en outre une poulie d'entraînement (33) reliée solidairement en rotation à l'arbre de sortie (19 ; 19b) du moteur d'entraînement (17), et
    dans laquelle l'arbre d'entraînement de tambour filtrant (9) présente en outre une poulie entraînée (35), la poulie d'entraînement (33) et la poulie entraînée (35) étant reliées par une courroie (31) pour relier l'arbre de sortie (19 ; 19b) du moteur d'entraînement (17) à l'arbre d'entraînement du tambour filtrant (9).
  11. Centrifugeuse à cisaillement (1) selon l'une quelconque des revendications 1 à 10, dans laquelle l'arbre de sortie (19 ; 19a, 19b) du moteur d'entraînement (17) et l'arbre d'entrée de la pompe (15) sont au moins sensiblement coaxiaux l'un avec l'autre.
  12. Centrifugeuse à cisaillement (1) selon l'une quelconque des revendications 1 à 11, dans laquelle l'arbre de sortie (19 ; 19a, 19b) du moteur d'entraînement (17) et l'arbre d'entraînement de tambour filtrant (9) sont au moins sensiblement parallèles l'un à l'autre.
  13. Centrifugeuse à cisaillement (1) selon l'une quelconque des revendications 1 à 12, dans laquelle l'arbre d'entraînement de tambour filtrant (9) comprend :
    un arbre d'entraînement de tambour filtrant extérieur (9a) réalisé sous la forme d'un arbre creux, et
    un arbre d'entraînement de tambour filtrant intérieur (9b) qui est monté de manière mobile axialement dans l'arbre d'entraînement de tambour filtrant extérieur (9a) et qui est relié au tambour filtrant (3) et au mécanisme de poussée hydraulique (11) de telle manière qu'il transmet la force de poussée oscillante axiale du mécanisme de poussée hydraulique (11) sur le tambour filtrant (3) pour effectuer le mouvement de va-et-vient relatif entre le fond de poussée (7) et le corps de tambour (5).
EP20175188.0A 2019-07-01 2020-05-18 Centrifugeuse à cisaillement Active EP3760318B1 (fr)

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USD928856S1 (en) * 2019-06-11 2021-08-24 Henan Changda Bee Industry Co., Ltd Gearbox for honey centrifuge
DE102019117721B4 (de) * 2019-07-01 2022-03-24 Andritz Kmpt Gmbh Schubzentrifuge
KR102504657B1 (ko) * 2019-11-18 2023-02-27 주식회사 엘지화학 가압 원심 탈수기
CN114887782B (zh) * 2022-04-15 2023-03-03 湘潭通用离心机有限公司 双级活塞推料离心机

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US3136721A (en) * 1961-03-31 1964-06-09 Pennsalt Chemicals Corp Centrifugal solids dryer
CH647959A5 (de) * 1980-05-16 1985-02-28 Glyco Antriebstechnik Gmbh Dekanterzentrifuge mit hydraulischem differenzantrieb.
US4381236A (en) * 1981-02-19 1983-04-26 Baker Perkins Inc. High pressure rotary centrifugal separator having apparatus for automatically cyclically reciprocating a corotating separator basket scraper
US4944874A (en) * 1986-12-12 1990-07-31 Kabushiki Kaisha Okawara Seisakusho Centrifugal separator
US5085443A (en) * 1990-05-29 1992-02-04 Amoco Corporation Labyrinth seal
DE102011055513A1 (de) * 2011-11-18 2013-05-23 Andritz Kmpt Gmbh Schubzentrifuge und Verfahren zum Betreiben einer Schubzentrifuge
DE102012101787A1 (de) * 2012-03-02 2013-09-05 Andritz Kmpt Gmbh Schubzentrifuge und Verfahren zum Betreiben einer Schubzentrifuge
DE102019117721B4 (de) * 2019-07-01 2022-03-24 Andritz Kmpt Gmbh Schubzentrifuge

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EP3760318A1 (fr) 2021-01-06
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DE102019117721B4 (de) 2022-03-24

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