EP2129470B1 - Verfahren und vorrichtung zum kontaminationsfreien beschicken und entleeren - Google Patents

Verfahren und vorrichtung zum kontaminationsfreien beschicken und entleeren Download PDF

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Publication number
EP2129470B1
EP2129470B1 EP08717133A EP08717133A EP2129470B1 EP 2129470 B1 EP2129470 B1 EP 2129470B1 EP 08717133 A EP08717133 A EP 08717133A EP 08717133 A EP08717133 A EP 08717133A EP 2129470 B1 EP2129470 B1 EP 2129470B1
Authority
EP
European Patent Office
Prior art keywords
drum
foil
insert
housing
drum housing
Prior art date
Legal status (The legal status 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 status listed.)
Not-in-force
Application number
EP08717133A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2129470A2 (de
Inventor
Richard Denk
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP2129470A2 publication Critical patent/EP2129470A2/de
Application granted granted Critical
Publication of EP2129470B1 publication Critical patent/EP2129470B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B11/00—Feeding, charging, or discharging bowls
    • B04B11/04—Periodical feeding or discharging; Control arrangements therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B15/00—Other accessories for centrifuges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B7/00—Elements of centrifuges
    • B04B7/02—Casings; Lids
    • B04B7/06—Safety devices ; Regulating
    • 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
    • B04B7/12—Inserts, e.g. armouring plates
    • B04B7/16—Sieves or filters

Definitions

  • the invention relates to contamination-free to be loaded and emptied devices and machines, in particular a centrifuge or a mixer.
  • the problem is that while centrifuging the centrifuge can be sealed tight and thereby no toxic or otherwise undesirable substances from the centrifuge can escape to the outside, but at the latest when opening the centrifuge for removal z. B. the filter cake, the filter cloth or residual amounts of the environment is contaminated.
  • centrifuges hereinafter referred to only by centrifuges, but without limiting the invention thereto - previously housed in rooms, which in turn are completely sealed off from the environment to escape from the centrifuge into the surrounding centrifuge space leak contaminants to the environment.
  • the rotatably drivable drum of the centrifuge has an at least partially open or openable side and about this opening a the Siebfunktion or the filter function bidding drum insert, in particular a shape-containing drum insert, are brought into and out of the drum can - so can be brought out of the drum together with the solid residues that remain in the drum insert - is already easier handling than with the usual filter fleece possible, which is otherwise designed inside the drum.
  • the combination of drum and drum insert is possible in the context of the present invention.
  • the drum housing which surrounds the rotating drum fixed, an at least partially open side, in particular an end face, which coincides with the open or openable side of the drum and is aligned.
  • the open side of either the drum or the drum insert, but preferably the drum housing with a bag-shaped or tubular, but preferably elastic and flexible film are sealed, which is dense for the suspension and its components, so that no components of the suspension from the drum housing can get out, which is otherwise carried out tight except for the inlet for the suspension anyway.
  • This film is tightly attached with its open side to the open side of the drum or the drum housing and otherwise closed by either sack-shaped design or hose-type design at the other end of the otherwise open side of the tube is also sealed. Depending on the mounting location, it rotates with the drum and drum insert or stands still with the drum housing.
  • this film is dimensioned so that the drum insert, with the solid remaining therein can be completely removed from the drum and the drum housing, while still remaining within the film, the removal of the drum insert with the solid is possible, without the drum housing and to leave foil formed dense space.
  • the film is additionally dimensioned so that a tight closure of the film between the drum housing and the drum insert is possible, for. B. by tight clamping of the tubular film and a subsequent separation from at this closing point or between two such closing points, then there is the drum insert with the filter cake in a tightly enclosed space from the film, on the other hand, the likewise contaminated drum housing is still sealed from the remaining, also sealed film residue.
  • the closed film bag with the drum insert therein and the filter cake can be emptied contamination free and then cleaned, either in a specially provided for this purpose separate, outwardly sealed to the outside room or even better, by close fitting of the closed end of the film to a corresponding discharge pipe.
  • Another possibility is to keep the inner surfaces of this film nozzle by further measures without contamination, for example, by a multi-layered at this point training of the film and the removal of the contaminated inner film of the tightly separating in this separation film, so that in the separation area, the inner surfaces of the Foil can not be contaminated.
  • the filter cake can be dried in the insert still in the drum housing and the drum, again dried without contamination, namely by supplying dry air and / or heat to the interior of the drum housing, for example through the outlet for the liquid provided opening in the drum housing.
  • the film should still be so long that a renewed tight sealing of the film between the discharge nozzle and the drum insert is possible.
  • the empty drum insert can be taken up again in a foil which is tightly closed on all sides and thus fed either to a special cleaning system or to a disposal system.
  • the remaining on the drum housing bag-like residual film can also contamination-free - after the automatic cleaning of the drum housing and thus this residual film from the inside - by a cover is placed on the open side of the remaining film still provided with the drum housing tightly and in this cover a disposal opening is arranged, which in turn is tightly enclosed by a disposal bag of dense film.
  • the disposal bag can be slipped from the outside as a glove inside through the disposal opening and - with appropriate positioning of the disposal opening - the remaining film that still sits on the drum housing, taken with the help of this glove, peeled off the drum housing (possibly after opening the attachment the remaining film on the drum housing) and pulled out of the cover out into the interior of the disposal bag.
  • This disposal bag is then tightly closed and separated between the disposal opening and the recorded residual film, whereby the possibly still contaminated residual film in turn tightly sealed in the disposal bag is present.
  • a centrifuge should firstly have an inlet opening in the drum insert, which can be placed tightly onto the inlet connection of the drum housing in order to prevent the suspension, which has not yet been centrifuged, from entering the space outside the drum insert.
  • the drum insert should preferably be a reusable drum insert, which can be used again after contamination-free emptying and subsequent cleaning.
  • the film used as a film should preferably be heat-sealable, in order to allow a tight closure and also, if appropriate, a separation at the closure site to be accompanied by a fusion at the same time and thereby prevent the escape of contamination.
  • the axis of rotation of the drum is horizontal and the open side of the drum or the drum housing is an end face, namely the end face opposite the drive side.
  • the outlet in the drum housing for the centrifuged liquid should preferably be switchable to the supply of drying air.
  • a washing device in particular a flushing device be present in order to automatically clean the inside of the drum housing and thus also the rotating drum itself as far as possible.
  • the above-described method can be carried out in a particularly simple manner if the length of the tubular or bag-shaped film required for the described method is not simply applied to the drum housing but several times and can be removed from there as required.
  • this protective hood should have a disposal opening which has an outwardly projecting nozzle for slipping a disposal bag and is so large that a fist can be inserted.
  • the centrifuge is first best in the form of the finished operable state of FIG. 3 explained.
  • the centrifuge 1 comprises a fixed drum housing 9, in which the drum 2 that can be driven in rotation is received and stored.
  • the drum 2 is mounted with one horizontal axis of rotation 20 on one side flying in the drum housing 9, so that both the drum 2 and the drum housing 9 a common, in this case the right, end face 2a, z. B. the drum have consistently formed as an open side.
  • closed side of the drum 2 opens the inlet 3 for the suspension to be separated by centrifugation in solid and liquid.
  • drum 2 Within the drum 2 sits a formaflir, cylindrical, preferably reusable drum insert 7, which provides the necessary filter function, ie in particular permeable to liquid on its lateral surfaces, for the solids contained in the suspension is not permeable and co-rotates with the drum 2 during operation ,
  • the drum insert 7 has a connection piece 7a in its left end side, which fits tightly onto the inlet connection 3 of the housing and projects into the drum 2 on the axis of rotation 20.
  • the connecting piece 7a of the drum insert 7 protrudes from the left end side over about 2/3 of the axial length of the drum insert 7 on the axis of rotation 20 forward and preferably has at its peripheral surfaces outlet openings to the suspension distributed over the axial length of the drum insert 7 in this emerge to let.
  • an outlet 6 can be seen in the lower region, which serves for deriving the squirted through the drum insert 7 to the outside liquid from the drum housing 9.
  • a tightly fitting to the open side of the drum housing 9 cover 5 is inverted from the open side, so from the right, cap-like over the open side 9a of the drum housing 9 to during operation, when the drum 2 rotates at high speed, in the case the flying away of objects, such as solving individual parts of the drum or the like, to intercept them and prevent injuries and damage, especially from people in the vicinity of the centrifuge.
  • FIG. 1 shows how the centrifuge for the inventive method is assembled in the ready state.
  • the drum insert 7 is located axially outside the drum 2 and thus of the drum housing 9, but is just before the open side 2a.
  • a bag-like film 4 is tightly secured around the drum housing 9, which extends axially far away from the open side 9a of the drum housing 9, that the drum insert 7 is completely accommodated in this film 4.
  • the film 4 is sealed at its other end, ie on the side facing away from the centrifuge 1 and the open side of the drum insert 7, and there has an openable product outlet 7b.
  • the cover 5 is accordingly not slipped over the open side of the drum housing 9.
  • the film 4 is axially approximated to the open side of the drum housing 9 so far that it no longer forms any appreciable projection, but is not due to the later rotating parts in operation, so neither on the drum 2 on the drum insert 7, and can also do not scrub what is necessary if necessary by appropriate axial mounting of the excess part of the film 4 on the outer circumference of the drum housing 9 or other measures is ensured.
  • FIG. 3 is - unlike FIG. 2 - Already the cover 5 axially slipped over the drum housing 9 from its open side 9a ago, so that the centrifuge is now in the ready state.
  • FIG. 4 shows the centrifuge in operation
  • the drum 2 and synchronously with it the drum insert 7 rotate about their common horizontal axis of rotation 20, while the suspension to be centrifuged passes through the inlet 3 and the connecting piece 7a of the drum insert 7 and its radial openings into the interior of the drum insert 7.
  • the suspension is forced by centrifugal force on the inner sides of the lateral surfaces of the drum insert 7, wherein the liquid portions can pass radially through the lateral surfaces of the drum insert 7 through outward into the drum housing, where they collect by gravity at the lowest point and the there existing outlet. 6 be dissipated.
  • FIG. 5 shows the state after centrifuging
  • the drying air thus penetrates the filter cake from the outside to the inside and thus removes moisture from the filter cake 17.
  • the moisture-laden drying air is sucked through the connecting piece 7a of the drum insert 7 and from there via the inlet 3 of the centrifuge 1.
  • the rotation of the drum 2 and the drum insert 7 is stopped, whereupon the filter cake 17 falls from the upper portions of the drum insert 7 and collects at its lowest point.
  • FIG. 6 shows how the filter element 7 is pulled out with the filter cake 17 contained therein axially from the open side 9a of the drum housing 9 and thus also from the drum 2, but still tightly enclosed within the film 4, which is sufficient for this purpose large axial extent can take, without being separated from its tight attachment to the drum housing 9.
  • the axial extent of the film 4 is so large that - as in FIG. 7 shown - the film 4 between the open side 9a of the drum housing 9 and located in the film 4 drum insert 7 of the intervening tubular film 4, the peripheral regions occupy a distance approximately to each other approximately corresponding to the diameter of the drum insert 7, as far as radially towards the center are approached to each other can, that they rest against each other sealingly.
  • the film is thus at least one, better two, in the axial direction no free passage more closing point 19a, b pressed against each other and kept tight by a suitable closing element, such as a pipe clamp or a sufficiently strong cable tie or the like.
  • a suitable closing element such as a pipe clamp or a sufficiently strong cable tie or the like.
  • tubular film 4 is either between these two closing points 19a, b or - with sufficient axial extent of only a single closing point in the region of this closing point - separated, so that now the tightly received in the closed part of the film 4 drum insert 7 can be moved separately ,
  • the interior of the drum housing 9 remains sealed from the remaining film 4 '.
  • the separation point within, for example, the left closing point 19a or just before the left closing point 19a so that the separation simultaneously seals the cut surface of the compressed film tube of the film 4, which is for example thermoplastic Foils 4 by separation by means of heat is very possible, which simultaneously causes a welding of the cut surfaces against each other and thus a seal.
  • FIG. 8 shows how on the one hand, the cover 5 is pushed back onto the drum housing 9 and on the other hand, the now separate drum insert 7 is placed vertically, namely with the closing point 19b of the film 4 facing upward and thus the at least partially open end face of the drum insert 7 facing down, whereupon the filter cake 17 collects at this open lower end face.
  • FIG. 9a shows the existing at the lower end of the film 4 product outlet 7b in the form of a film nozzle 21, which is long enough to FIG. 9b to be attached tightly to the open end of a discharge nozzle 15.
  • the drum insert 7 which now contains no filter cake or hardly any residues of the filter cake 17, but still contaminated, tightly enclosed by the film 4 and can now again handled and transported separately, for example, a separate disposal device (in a single use of Drum insert 7) or washing and Dekontamin istsstrom (when reusing the drum insert 7) are supplied, which are not shown here.
  • FIG. 10 shows how can with the remaining on the drum housing 9, these still tightly closing, foil remainder 4 ', can be handled.
  • FIG. 10a is the cover 5 as far as possible slipped over on the drum housing 9 from its open side 9a ago, so that the bottom of the cap-shaped cover 5 comes close to the open side 9a of the drum housing 9 to rest.
  • a disposal opening 13 is provided with a projecting away from the centrifuge 1, on the outer periphery of a first also from the centrifuge projecting away disposal bag 14 is attached from a flexible, dense film, which - as in the attachment of the film 4 on the Outer circumference of the drum housing 9a - can be done by means of a suitable clamping device 18.
  • the disposal opening is closed by an externally mounted plug 22.
  • the applied cleaning liquid washes off the contaminants present and is in turn discharged via the outlet 6, wherein the cleaning process is continued until the entire interior of the drum housing 9 including the drum 2 is presumably no longer or only slightly contaminated.
  • the area in which residual contamination can most likely be found again is the inner surfaces of the residual film 4 ', which because of its non-conforming structure can form wrinkles and the like, in which contaminations may possibly remain despite the washing process.
  • the disposal bag 14 is used as a glove to remove the placed inside the disposal bag 14 on the neck plug 22 to carry in the rear end of the disposal bag 14.
  • the disposal bag 14 is closed again at two closing points 19a, b and separated therebetween, whereby the possibly contaminated plug 22 is sealed off tightly.
  • the first outwardly projecting disposal bag 14 is inserted through the disposal opening 13 into the interior of the cover 5 and inserted the hand of a user who thereby uses this disposal bag 14 as a glove.
  • this remaining bag 14' can also be disposed of without contamination in a further step, as in FIGS Figures 10f - h shown.
  • a decontamination device 23 is placed on the neck of the disposal opening 13 and also over the remaining bag 14 'fit and tight.
  • This device 23 has opposite the nozzle 23 an engagement opening 25, on which in turn another disposal bag 24 is placed tightly.
  • this device also has an outlet 26, and inside the device, a flushing device 11 'is arranged.
  • Fig. 10g is now grasped by means of the disposal bag 24 as a glove in the device and the remaining bag 14 'withdrawn from the disposal opening 13 and pulled out of the device 23 into the interior of the further disposal bag 24.
  • the disposal bag 24 is again tightly closed and separated between the engagement opening 25 and the enclosed residual bag 14 ', whereby the remaining bag 14' can be sealed and treated separately.
  • the interior of the decontamination device 23 can be rinsed individually or together with the interior of the drum housing 9 by means of the respectively installed flushing devices 11, 11 'and thus decontaminated. Resulting rinsing liquid is discharged from the drum housing 9 via the outlet 6 and from the decontamination device 23 from the outlet 26th
  • both the centrifuge 1 and the decontamination device 23 are available for reuse.

Landscapes

  • Centrifugal Separators (AREA)
  • Accessories For Mixers (AREA)
EP08717133A 2007-02-28 2008-02-26 Verfahren und vorrichtung zum kontaminationsfreien beschicken und entleeren Not-in-force EP2129470B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102007009681 2007-02-28
DE102007038692A DE102007038692A1 (de) 2007-02-28 2007-08-16 Verfahren und Vorrichtung zum kontaminationsfreien Beschicken und Entleeren
PCT/EP2008/052301 WO2008104535A2 (de) 2007-02-28 2008-02-26 Verfahren und vorrichtung zum kontaminationsfreien beschicken und entleeren

Publications (2)

Publication Number Publication Date
EP2129470A2 EP2129470A2 (de) 2009-12-09
EP2129470B1 true EP2129470B1 (de) 2012-05-16

Family

ID=39670228

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08717133A Not-in-force EP2129470B1 (de) 2007-02-28 2008-02-26 Verfahren und vorrichtung zum kontaminationsfreien beschicken und entleeren

Country Status (6)

Country Link
US (1) US20100130340A1 (zh)
EP (1) EP2129470B1 (zh)
JP (1) JP2010520041A (zh)
CN (1) CN101641160B (zh)
DE (1) DE102007038692A1 (zh)
WO (1) WO2008104535A2 (zh)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130170315A1 (en) * 2009-12-16 2013-07-04 Mt-Energy Gmbh Container of a Biogas System and Method for Removing a Component from the Container
CN101898172A (zh) * 2010-06-25 2010-12-01 溧阳市超强链条制造有限公司 具有平底板转鼓的离心机
CN101898174B (zh) * 2010-06-25 2011-10-19 溧阳市超强链条制造有限公司 一种离心机转鼓中脱水桶的出料装置
CN107716127A (zh) * 2017-10-26 2018-02-23 绍兴柯桥雷霄机械科技有限公司 一种具有降噪功能的离心机
GB2569168B (en) * 2017-12-08 2022-07-13 Mann & Hummel Gmbh Rotor for a filter sub-assembly
US20200316501A1 (en) * 2017-12-19 2020-10-08 Xeros Limited Filter for a treatment apparatus

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5040070Y2 (zh) * 1971-07-17 1975-11-15
DE4013388A1 (de) * 1990-04-26 1991-10-31 Titus Hans Joachim Zentrifugen-trockner
JPH04187280A (ja) * 1990-11-19 1992-07-03 Nikou Sangyo Kk 厨房廃棄物の処理方法
JP2001315971A (ja) * 2000-05-01 2001-11-13 Toyo Eng Corp 粉体の投入方法
DE10114598A1 (de) * 2001-03-23 2002-10-02 Aventis Pharma Gmbh CIP-gerechte Ausführung einer Horizontalzentrifuge mit Vollmanteltrommel
DE10115381A1 (de) * 2001-03-28 2002-10-24 Heinkel Ag Stülpfilterzentrifuge
CN2609664Y (zh) * 2003-03-18 2004-04-07 蒋大洲 转鼓式无菌离心干燥机
DE10311997A1 (de) * 2003-03-19 2004-10-07 Johannes Gerteis Stülpfilterzentrifuge
ES2619155T3 (es) * 2005-11-18 2017-06-23 Ferrum Ag Cartucho de centrífuga

Also Published As

Publication number Publication date
DE102007038692A1 (de) 2008-09-04
CN101641160A (zh) 2010-02-03
WO2008104535A2 (de) 2008-09-04
WO2008104535A3 (de) 2009-03-05
CN101641160B (zh) 2012-11-14
US20100130340A1 (en) 2010-05-27
JP2010520041A (ja) 2010-06-10
EP2129470A2 (de) 2009-12-09

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