WO2016146363A1 - Séparateur équipé d'un outil à tambour - Google Patents

Séparateur équipé d'un outil à tambour Download PDF

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Publication number
WO2016146363A1
WO2016146363A1 PCT/EP2016/054003 EP2016054003W WO2016146363A1 WO 2016146363 A1 WO2016146363 A1 WO 2016146363A1 EP 2016054003 W EP2016054003 W EP 2016054003W WO 2016146363 A1 WO2016146363 A1 WO 2016146363A1
Authority
WO
WIPO (PCT)
Prior art keywords
drum
separator
ring
tool according
outer drum
Prior art date
Application number
PCT/EP2016/054003
Other languages
German (de)
English (en)
Inventor
Wilfried Mackel
Reinhard Moss
Angelika Voltmann
Original Assignee
Gea Mechanical Equipment Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gea Mechanical Equipment Gmbh filed Critical Gea Mechanical Equipment Gmbh
Publication of WO2016146363A1 publication Critical patent/WO2016146363A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B7/00—Elements of centrifuges
    • B04B7/08—Rotary bowls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
    • B04B1/04—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with inserted separating walls
    • B04B1/08—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with inserted separating walls of conical shape

Definitions

  • the invention relates to a separator with a drum tool according to the preamble of claim 1.
  • a separator without solids discharge in an embodiment as separator shows the US 2,017,734.
  • US Pat. No. 2,286,354 also shows a separator with solid drum base and drum shell parts screwed together. To open the drum special tools are required.
  • WO 2006/000829 A1 also discloses a separator for separating a flowable product into various phases or for clarifying a product having a rotatable drum with a drum base and a drum top and a means for clarifying arranged in the drum, one of which Several or all of the following elements are made of plastic or a plastic composite material: the lower part of the drum, the upper part of the drum, the means of clarification.
  • This separator is further developed by the fact that the drum has an outer support device in the form of an outer drum and an inner drum arranged inside the outer drum.
  • a means for clarifying the product to be processed in the centrifugal field is also arranged in the inner drum.
  • the outer drum can completely surround the inner drum. But there is also already a good stabilization of the rotating system when
  • the outer drum surrounds the inner drum axially only in sections, preferably over at least 50% of the axial length of the inner drum or more.
  • the inner drum protrudes axially out of the outer drum, which makes it easier to clearly separate and space the inlet and outlet areas of the inner drum from the outer drum. It is particularly advantageous if the inner drum and the outer drum made of different materials, since in each case the optimal materials can be selected for both elements outer drum and inner drum.
  • the inner drum of a turn preferably relatively thin-walled plastic or a plastic composite, so that they can be easily disposed of and the reusable outer drum made of metal, especially steel, so that their running properties are particularly easy to optimize.
  • the weight of the outer drum can significantly exceed that of the inner drum, so that the rotational behavior is essentially determined by the outer drum.
  • the weight of the rotating parts of the metallic outer drum is more than twice as large, in particular more than four times as large as the weight of the rotating parts made of plastic or as the weight of the empty inner drum.
  • both deflections of the rotating system in the radial direction to the axis of rotation D and the tendency to imbalance can be significantly reduced.
  • Both the inner drum and the support structure can - but need not - be designed relatively thin-walled.
  • preferably to be changed after processing a product batch internal drum can be made very material-saving.
  • the change of the inner drum and its assembly, disassembly and other handling can be carried out in a simple manner, since there is a stable outer drum construction in which the inner drum only has to be inserted, it is possible to connect the drive to an electric motor only provided on the outer drum, so that the inner drum removed in a change only from the outer drum and another internal drum must be reinserted into this, without the need for many complicated assembly steps such as making a drive connection to the drive shaft are necessary.
  • the outer drum has an outer drum base and a detachable outer drum upper part.
  • the inner drum has an inner drum lower part and an inner drum upper part which can be preassembled or preassembled therewith.
  • the inner drum has an inner drum lower part and an inner drum upper part which can be preassembled or preassembled therewith.
  • the object of the invention to provide a tool for opening and closing a drum, with which the drum is well and simply open - in the sense of a revolving - and closing - in the sense of a collapse - leaves.
  • the invention also aims in particular at providing a preferred embodiment of a tool for opening and closing a drum, which has an outer drum and an inner drum, the outer drum having an outer drum base and an outer drum top, with which the outer drum open well and easy and lets close.
  • a separator is produced for the centrifugal processing of a flowable product with a drum tool, having at least the following features:
  • Drum has two rotatable relative to each other on a threaded drum parts
  • the drum tool which is designed to open and close the drum by rotating the screwed together via the thread drum parts, the drum tool comprising at least one attachable to the one drum part ring spanner, an abutment device on the other drum part, and a tensioning device for rotating of a ring key relative to the abutment.
  • the drum tool further comprises: another ring key for attachment to the other drum part, wherein in each case one of the two drum parts rotatable relative to one another and one of the ring keys engage in corresponding torque transmission contours.
  • the claimed drum tool of claims 1 and claim 1 in combination with claim 2 is in each case simple in construction and yet fast and secure to the outer drum fastened to rotate their drum parts relative to each other.
  • the rotatable drum comprises: an outer drum and an inner drum arranged in the outer drum, which rotate the outer drum. . . . axially at least partially and circumferentially completely surrounds, wherein the outer drum has the rotatable relative to each other on a threaded drum parts. Especially when the inner drum has to be changed over and over again in batch mode, the drum tool proves to be extremely helpful since it makes it easier to change the inner drum.
  • the corresponding torque transmission contours are structurally simple as radially extending projections on the ring spanners and formed as corresponding recesses in the outer periphery of the relatively rotatable parts of the drum.
  • each ring key can be clamped together by means of a fixing device, in particular a fixing screw and a nut, in order to fasten the ring spanner to the drum parts.
  • a fixing device in particular a fixing screw and a nut
  • a clamping device is provided with which the two ring spanners can be rotated relative to one another by a predetermined angle.
  • this clamping device in a variety of, further below to be explained in more detail manner feasible.
  • Particularly easy is the assembly of the inner drum in the outer drum when the outer drum shell is formed in the manner of a ring which is bolted to the outer drum base and which is axially formed open at the top, so that the inner drum shell protrudes axially out of it.
  • the outer drum base and the outer drum top can also be connected in other ways.
  • the inner drum and the outer drum are non-rotatably and / or positively connected with each other rotatably.
  • a feed system and a drainage system of the drum are formed exclusively on the inner drum, so that the outer drum does not come into contact with the product to be processed during operation.
  • the feed system and drain system are formed in a sealed manner on the inner drum.
  • the inlet system and the drainage system can have a cover ring body, which is designed as a part that does not rotate with the drum during operation, and when the inlet system has an inlet tube, which is designed as an element rotating with the drum.
  • the transition of the product is realized in the rotating system already at the inlet of the inlet pipe, which simplifies the construction of the inner drum.
  • the drainage system with the aid of one or more grippers made of plastic, which in the manner of centripetal pumps direct the one or more phases separated in the centrifugal field from the drum.
  • a part of and preferably even all of the product-contacting areas of the rotating system consist of a plastic or a plastic composite material, in particular the inner drum lower part and the inner drum upper part and the disk package.
  • the inlet system and the drainage system made of plastic or a plastic composite material.
  • the inner drum base and the inner drum shell are permanently connected to each other during initial assembly, to prevent attempts to disassemble them and reuse if necessary after inadequate cleaning. Instead, the inner drum is completely disposed of or recycled. This is also advantageous that the sterility is guaranteed.
  • the design is preferably such that no air can penetrate from the outside into the inner drum before installation and after removal.
  • the plastic used is preferably a recyclable plastic, in particular PE (polyethylene), PP (polypropylene) or TK-PEEK (in particular partially crystalline) polyether ether ketone.
  • PE polyethylene
  • PP polypropylene
  • TK-PEEK in particular partially crystalline polyether ether ketone.
  • PC polycarbonate
  • MABS methyl methacrylate-acrylonitrile-butadiene-styrene
  • ABS acrylonitrile-butadiene-styrene
  • PSU polysulfone
  • the parts made of plastic could be produced by injection molding and optionally post-processed, e.g. be provided with holes and the like, where necessary. Screws and the like. Can also be made of plastic, but they can, especially if they are not touched by the product during processing, also be made of a different material.
  • Figure 1 is a partially sectioned view of a separator according to the invention with a drive spindle and with a drum tool.
  • Fig. 2 in a) is a plan view of the drum tool of Fig. 1 on a drum when closing the drum and in b) is a plan view of this drum tool on the drum of a) when opening the drum.
  • Fig. 1 shows a section through the region of a rotatable drum 1 of a separator according to the invention, with which a liquid product in the centrifugal field can be separated into two phases.
  • the drum 1 has a vertical axis of rotation D. Terms used hereafter, such as “top” or “bottom”, refer to the orientation of elements of the separator with respect to this vertical axis of rotation.
  • the drum 1 is here placed on an upper end of a vertically aligned (and only partially shown here) drive spindle 2.
  • a drive motor (not shown) serves to drive the drive spindle 2 directly or via one or more intermediate elements such as a drive belt or the like.
  • the drum 1 has an outer drum 3, which may also be formed as an outer drum section - and an inner drum 4.
  • the inner drum 4 is inserted into the outer drum 3 in a change-over manner.
  • the outer drum section or the outer drum 3 and the inner drum 4 are made of different materials.
  • the outer drum 3 is made of metal, in particular of steel, and the inner drum 4 preferably consists entirely or at least partially of a plastic or a plastic composite material.
  • the outer drum 3 serves as a kind of holder into which the inner drum 4 is inserted and which surrounds or encloses the inner drum 4 in the vertical or axial direction at least in sections. Particularly preferably, the outer drum 3 and the inner drum 4 are rotatably connected to each other. This can be realized in particular by a form and / or adhesion between the outer drum 3 and the inner drum 4.
  • the outer drum 3 has an outer drum lower part 5 and an outer drum upper part 6.
  • the outer drum base 5 is formed substantially like or similar to a drum base of known separators without an inner drum 4.
  • the outer drum base 5 and the outer drum shell 6 are held together here in a preferred embodiment in a simple manner with a closure ring 7, the outer drum shell 6 and the closure ring 7 and the inner drum 4 fix on the outer drum base 5.
  • the outer drum base 5 is rotatably mounted on the drive spindle 2, so that it rotates during operation with this. It has a lower conical section 8 and widens upwards.
  • an upwardly extending portion 9 is formed in the outer peripheral portion of the outer drum base 5, an upwardly extending portion 9 is formed.
  • the vertically upwardly extending portion 9 is cylindrically shaped.
  • the outer drum base 5 is also initially radially inwardly from the inside to the outside formed conical and is on its outer periphery in an upwardly open groove 10 via. This groove 10 is limited to the outside by the inner circumference of the cylindrical portion 9.
  • an internal thread 1 1 is further formed on the inner circumference of the cylindrical portion 9.
  • the outer drum shell 6 In the cylindrical portion 8 of the outer drum base 5, the outer drum shell 6 is inserted.
  • the outer drum shell 6 engages with a lower, radially downwardly extending, circumferential collar 12 positively in the groove 10 of the outer drum base 5 a.
  • the outer drum shell 6 is fixed with the locking ring 7 on the outer drum base 5.
  • the closure ring 7 has an axial section 13 and a radial section 14.
  • the axial section 13 of the closure ring 7 engages from above into the cylindrical section 9 of the outer drum lower part 5 and presses with its lower free end from above onto the outer drum upper part 6 and presses it against the outer drum lower part 5.
  • the axial section 13 has on its outer circumference on an external thread 15 that is screwed into the internal thread 1 1 of the outer drum base 5.
  • the axial section 13 also presses with its lower free end on the outer drum shell 6 and fixed this frictionally on the outer drum base fifth
  • the radial (and ring) section 14 of the closure ring 7 runs in the screwed-in state, which fixes the outer drum upper part 6, preferably above the upper edge of the cylindrical section 8, parallel to it.
  • the design is such that the outer circumference 1 6 of the radial section 14 of the locking ring 7 and the outer circumference 17 of the cylindrical abutment 7 Section 9 of the outer drum base 5 are approximately or exactly relative to the axis of rotation D at an equal radius relative to the axis of rotation D.
  • outer drum base 5 and the outer drum upper part 6 have corresponding threads in the region of which they are screwed directly to one another here) and that these two drum parts then have outer shell sections which lie axially one above the other.
  • the superimposed outer peripheral portions of the relatively rotatable drum parts are provided with circumferentially distributed torque transmission contours. These are formed as recesses 18, 19 or projections (not shown here) on the outer circumference. Circumferentially distributed depressions as well as protrusions may be provided (not shown here).
  • circumferentially distributed torque transmission contours are formed as recesses 18, 19 or projections (not shown here) on the outer circumference. Circumferentially distributed depressions as well as protrusions may be provided (not shown here).
  • a drum tool 20 is provided.
  • This drum tool 20 has two in the illustrated preferred embodiment, two ring key 21, 22.
  • these ring spanners 21, 22 are attached directly vertically above one another to the drum parts rotating relative to each other, ie here to the drum base 5 and the lock ring 7.
  • the two ring spanners 21, 22 are provided with torque transmission contours on their inner circumference (ie on the inner circumference of their rings). which are formed corresponding to the formed on the outer circumference of the outer drum base 5 torque transmission contours.
  • the ring keys 21, 22 At locations at which the drum parts 6, 7 rotatable relative to one another have recesses 18, 19, the ring keys 21, 22 have corresponding projections or noses 23, 24 which project radially inwards. It is enough if the depressions 18, 19 or projections 23, 24 extend in the radial direction over only a few mm each, preferably less than 10 mm.
  • the corresponding torque transmission contours of the drum parts and the ring spanner 21, 22 may be evenly distributed on the respective circumference or irregular.
  • the latter variant has the advantage that a design is possible such that the ring key 21, 22 only in a defined position on the drum parts - here 5 and 7 - are attachable.
  • the ring spanner 21, 22 are in a preferred embodiment in the region of their rings not completely circumferentially closed but each go at a position where they are not circumferentially closed, in radially outwardly projecting handling arms 25, 26; 27, 28 (see also Fig. 2) via.
  • the two handling arms 25, 26 and 27, 28 of the respective ring spanner 21, 22 can each be connected and clamped via a fixing device, in particular a fixing screw 29 and a nut 30, for which purpose the adjusting screw then passes through two holes in the handling arms 25-28.
  • the drum parts 5, 6 and the locking ring 7 are assembled and first screwed together as far as possible by hand.
  • the locking ring 7 is screwed into the outer drum base 5.
  • the inner drum 4 provided here is placed between the drum parts.
  • the operator In order to rotate the drum parts - here the closure ring 7 and the outer drum base 5 - relative to each other even further, the operator then sets the ring wrench 21, 22 on the corresponding outer periphery of these relatively rotatable drum parts. Then he tenses the two ring spanners 21, 22 with the respective fixing screws 29 slightly before, so that the ring spanners 21, 22 are held securely on the drum parts.
  • the ring spanner 20, 21 and the tensioning device are also preferably designed to be able to separate these two drum parts 5, 7 from the screwed position again over a first release angle (FIG. 2 b).
  • the clamping device can be realized in a variety of configurations.
  • the clamping device may according to an advantageous and easily realizable embodiment have an adjusting screw 35 which is adapted to the two rings of the ring spanner in the mounted on the drum parts state, for. in the area of the handle or elsewhere to draw on each other, so as to screw the one drum part - here the locking ring 7 - under application of a sufficient torque on the drum base 5.
  • the set screw 35 has structurally simple a grip section 37 or another torque-transfer contour and a bolt section with threaded section 36.
  • the two ring spanners 20, 21 are further provided for the implementation of the clamping device with holes which passes through the threaded portion 36.
  • the bores may be provided in tabs 31, 32, 33 and 34, which are provided on the ring spanners 21, 22.
  • the tabs 31, 32, 33 and 34 extend radially or substantially radially. They are also preferably provided on or in the region of the handling arms 25-28 close to the actual ring sections.
  • the handling arms 25-28 and thus the ring spanner are moved relative to each other and thus the drum parts - here the closure ring 7 and the drum base 5 - relative to each other still rotated by a piece to each other (see Fig. 2a).
  • the two tabs of the ring key 21, 22 preferably extend in opposite directions. This makes it possible to easily realize a release of the drum parts from each other in the sense of screwing.
  • the two ring key 20, 21 are suitably implemented (see Fig. 2b).
  • the clamping device can be reassembled. When tightened, it now loosens the screw connection until it can be opened completely by hand. It is also conceivable to form the tensioning device in another way.
  • the outer drum shell 6 is also conical. It is further formed as a ring which is rotatably connected below with the outer drum base 5 and which is open at the top, so that the inner drum 4 vertically or axially upwardly out of the outer drum, here from the outer drum shell 6 protrudes. Since the outer drum base 5 and the outer drum upper part 6 are preferably made of metal, in particular steel, and preferably at least the drum base is designed as a drum without inner drum 4, they can provide largely the smoothness and stability and safety of a known modern metal drum. Since the outer drum 3 surrounds the inner drum 4 in sections or completely on the outside, the outer drum stabilizes the inner drum. In particular, the outer drum 3 advantageously contributes to optimizing the running properties of the entire drum 1 during operation at high speed. In addition, the wall thickness of the inner drum 4 can also be chosen to be much thinner than that of a drum made entirely of plastic without an outer drum 3, as proposed in WO 206/000829 A1.
  • the inner drum 4 is designed in such a way that it preferably rests substantially directly on the inner circumference of the outer drum in a form-fitting manner.
  • the inner drum 4 here has an inner drum lower part 39, an inner drum upper part 40 connected thereto and a distributor 41 with distribution channels 42.
  • the inner drum 4 surrounds the actual centrifugal space 43. In it, a plate package 44 and 45, 46 processes can be provided.
  • the actual discharge takes place by not shown here peeling discs or by a cover (not shown here).
  • the inner drum is wholly or for the most part made of plastic or a plastic composite material.
  • the inner drum parts are made of plastic or a Kunststoffverbundwerk- material and are connected to each other liquid-tight.
  • a cohesive connection between the inner drum base and the inner drum shell is provided, which can be achieved in the sense of this document, for example, by a fusion but also by gluing.
  • At the distributor 42 may be formed in the upper region, for example, a pipe socket, in which a feed pipe is inserted (not shown here).
  • the inlet pipe and the distributor form an inlet system.
  • An introduced into the inner drum interior or centrifugal space 43 product is separated in the drum 1 in different, preferably two, product phases of different density.
  • the drain system with two or more processes 45, 46 (not shown here) is used.
  • Such a large part of or there are preferably even all of the product-contacting areas of the rotating system made of plastic or plastic composite material, in particular the inner drum 3 with its components.
  • the inner drum 4 can be made quite thin. With a complete disposal falls accordingly very little plastic waste.
  • 1 shows an embodiment as a two-phase separation machine (separation of a product in the phases: "liquid / liquid”), three-phase machines (for separation into three phases) are also feasible (not shown here) .
  • the product is preferred, but not mandatory a fermentation broth to be concentrated
  • the entire inner drum together with the inlet and outlet system is preferably designed as a replaceable preassembled module made of plastic or a plastic composite material.

Landscapes

  • Centrifugal Separators (AREA)

Abstract

L'invention concerne un séparateur, destiné au traitement centrifuge d'un produit apte à l'écoulement, et un outil à tambour (20), comportant au moins les éléments caractéristiques suivants : a. un tambour rotatif (1) qui délimite une chambre centrifuge (43) et b. le tambour (1) comportant au moins deux parties de tambour (5, 7) rotative l'une par rapport à l'autre sur un filetage, c. l'outil à tambour (20) qui est adapté pour ouvrir et fermer le tambour par rotation des parties de tambour (5, 7) vissées l'une à l'autre par le biais du filetage, d. l'outil à tambour comprenant au moins : i. une première clé annulaire (21) pouvant être placée sur l'une des partie de tambour (5), ii. un moyen de butée situé sur l'autre partie de tambour (7), iii. un moyen de serrage destiné à faire tourner ladite clé annulaire (21) par rapport au moyen de butée (22).
PCT/EP2016/054003 2015-03-17 2016-02-25 Séparateur équipé d'un outil à tambour WO2016146363A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202015101346.9 2015-03-17
DE202015101346.9U DE202015101346U1 (de) 2015-03-17 2015-03-17 Separator mit Trommelwerkzeug

Publications (1)

Publication Number Publication Date
WO2016146363A1 true WO2016146363A1 (fr) 2016-09-22

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2016/054003 WO2016146363A1 (fr) 2015-03-17 2016-02-25 Séparateur équipé d'un outil à tambour

Country Status (2)

Country Link
DE (1) DE202015101346U1 (fr)
WO (1) WO2016146363A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202018102027U1 (de) 2018-04-13 2019-07-18 Gea Mechanical Equipment Gmbh Zentrifuge mit Trommelwerkzeug

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE484735C (de) * 1929-10-18 Hans Roehl Schleudermaschine, deren Trommelverschlussring mit Hilfe eines Ringschluessels geoeffnet werden kann
US2017734A (en) 1933-01-24 1935-10-15 Int Harvester Co Cream separator bowl
GB437030A (en) * 1934-04-23 1935-10-23 Stone J & Co Ltd Improvements in and connected with spanner-devices, particularly for centrifugal machines
DE651026C (de) * 1936-05-15 1937-10-06 Bergedorfer Eisenwerk Akt Ges Vorrichtung zum Festhalten einer Schleudertrommel gegen Drehen bei ihrem Auseinandernehmen
US2286354A (en) 1940-02-13 1942-06-16 Sharples Corp Centrifugal separator
WO2006000829A2 (fr) 2004-06-29 2006-01-05 Oxford Biosensors Limited Procede de detection electrochimique

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE484735C (de) * 1929-10-18 Hans Roehl Schleudermaschine, deren Trommelverschlussring mit Hilfe eines Ringschluessels geoeffnet werden kann
US2017734A (en) 1933-01-24 1935-10-15 Int Harvester Co Cream separator bowl
GB437030A (en) * 1934-04-23 1935-10-23 Stone J & Co Ltd Improvements in and connected with spanner-devices, particularly for centrifugal machines
DE651026C (de) * 1936-05-15 1937-10-06 Bergedorfer Eisenwerk Akt Ges Vorrichtung zum Festhalten einer Schleudertrommel gegen Drehen bei ihrem Auseinandernehmen
US2286354A (en) 1940-02-13 1942-06-16 Sharples Corp Centrifugal separator
WO2006000829A2 (fr) 2004-06-29 2006-01-05 Oxford Biosensors Limited Procede de detection electrochimique

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