EP1448308A1 - Centrifugeur - Google Patents

Centrifugeur

Info

Publication number
EP1448308A1
EP1448308A1 EP02803372A EP02803372A EP1448308A1 EP 1448308 A1 EP1448308 A1 EP 1448308A1 EP 02803372 A EP02803372 A EP 02803372A EP 02803372 A EP02803372 A EP 02803372A EP 1448308 A1 EP1448308 A1 EP 1448308A1
Authority
EP
European Patent Office
Prior art keywords
drum
centrifuge
outlet means
solids
sieve
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.)
Withdrawn
Application number
EP02803372A
Other languages
German (de)
English (en)
Inventor
Klaus Braun
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.)
HKS Technology GmbH
Original Assignee
HKS Technology 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 HKS Technology GmbH filed Critical HKS Technology GmbH
Publication of EP1448308A1 publication Critical patent/EP1448308A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
    • B04B1/10—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with discharging outlets in the plane of the maximum diameter of the bowl
    • B04B1/14—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with discharging outlets in the plane of the maximum diameter of the bowl with periodical discharge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B5/00—Other centrifuges
    • B04B5/005—Centrifugal separators or filters for fluid circulation systems, e.g. for lubricant oil circulation systems
    • 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 present invention relates to a centrifuge according to the preamble of the main claim.
  • Centrifuges of this type are particularly widespread in an industrial context and are used, for example, to clean coolants or comparable emulsions, such as those used in machining centers, for example in machining processes. Coolants that are contaminated with solids, particularly when machining workpieces, often justify a cleaning system for processing the coolant emulsions even when fewer production machines are used.
  • conventional, known filter systems for cleaning coolants or the like since conventional, known filter systems for cleaning coolants or the like. contaminated emulsions due to the often large amounts of liquid to be cleaned and comparatively small particle sizes must have large filter surfaces and tend to clog due to small pore sizes, centrifuges have proven particularly useful for this purpose.
  • the applicant also markets a centrifuge, which is used as a generic, and which has a double-conical full-shell drum as a rotor, which is driven in an otherwise known manner by an electric motor.
  • the contaminated coolant is cleaned in a known manner by centrifugal forces acting on the solids in the emulsion which, when the drum rotates, lead to an accumulation (separation) of the solids on the peripheral inner walls of the drum.
  • the solids can then be discharged from the rotor inner walls by spinning or mechanical removal or peeling, the device, which the applicant presumes to be known, additionally automates this step by using special means for ejecting the Solid discharge blades in the centrifuge provided and driven for discharge purposes (and to replace the previous manual cleaning) opposite to the direction of rotation of the rotor.
  • the object of the present invention is therefore to improve a generic centrifuge, in particular for processing liquids containing solids, with regard to their usable operating time and to simplify their construction and in terms of susceptibility to faults; In addition, the need for maintenance of such a device during operation should be reduced.
  • the multi-part drum is preferably adjustable by external adjusting means so that axial relative movement between a nem first, axially fixed drum part and a second, axially movable drum part (while the drum rotates) different outlet openings in the form of the outlet means can be selectively and sequentially opened.
  • a discharge and cleaning operation (the cleaned liquid or the settled solids) can take place while the centrifuge is rotating, in the original direction of rotation, which also applies to the actual centrifuging operation .
  • the sieve or filter element
  • This sieve or filter element advantageously has the effect that, during the rotation of the drum, liquid passes through pores or openings of this sieve and collects in the first drum region; According to the invention, this is assigned to the first outlet, so that by corresponding Actuation and opening of this outlet allows the centrifugal force to apply the fluid.
  • this sieve or filter element retains the solids which are deposited on the inside of the drum and thus also determines the second drum area according to the invention.
  • This is assigned to the second outlet, so that by opening this second outlet the solids content, possibly supported by flushing fluids or the like, can also be discharged.
  • liquid has already been drawn off before the second outlet for the solids is opened, a clear and efficient separation of the fractions can be achieved in this way. Irrespective of this, new liquid to be cleaned constantly enters during centrifugation and exits the drum in a cleaned form via an outlet on the top.
  • the sequential actuation of the first and second outlet means can be achieved by the interaction of the movable drum part as a movable wall element of the drum with the sieve and / or filter means, in such a way that that according to the further development, the adjusting means first drive and adjust the movable drum part to close or open the first outlet means, and that by further driving the movable drum part via the mechanical driver unit according to the invention, the sieving and / or filter means and in turn the second outlet means are moved Expose (or close when moving back).
  • This sequential sequence of adjusting steps can be achieved in a particularly simple manner by the axial offset between the units involved, which is provided according to the further development.
  • the centrifuge according to the present invention is preferably controlled by an electronic operating mode control unit, which in particular also controls the interaction between the units involved in opening the first and second outlet means, the time sequences and a subsequent reclosing.
  • the present invention succeeds in a surprisingly simple and elegant manner in realizing a centrifuge suitable for automatically discharging separate fractions, which minimizes operating and dead times and, due to the simple and elegant mechanical implementation, only combines a minimum of wear with little maintenance ,
  • FIG. 1 shows a sectional, perspective view of the essential components of the centrifuge according to the invention according to a first preferred embodiment, with the position of the movable drum part for a centrifuging operation;
  • FIG. 2 shows a longitudinal section analogous to the illustration according to FIG. 1 for the centrifuging operation
  • Fig. 3 a view analogous to Fig. 2, but with the opening of the first outlet means relative to an axially fixed Tro melteil axially moved (offset) drum part and
  • FIG. 4 a sectional view analogous to the representations of FIG. 2, FIG. 3, with a movable drum part which is axially displaced further than the depiction of FIG. 3 and additionally axially displaced sieve or filter means for additionally opening the second outlet means.
  • a double cone-shaped centrifuge drum consists of a conical drum upper part 10, a slightly conical drum part 12 as a valve disk, a conical sieve plate insert 14 between see drum upper part and valve plate and a drum lower part as a rotor housing bottom shell 16 and is rotatably supported with an associated drive shaft 18, which is designed in sections as a hollow shaft, in an otherwise known manner between a centrifuge housing cover plate 20 and a centrifuge bottom plate 22 and by one not shown in the figures Electric motor, typically driven by a plastic belt.
  • a drum interior 24 that is effective for the centrifuge is bounded liquid-tight by the upper drum part 10 and the lower drum part 16;
  • the sieve plate 14 which is typically implemented as a metal sieve and is adapted to the particle size of solids in the coolant to be treated with regard to its filter action with suitable pore diameters, is permeable to the liquid component of the coolant to be treated and thus separates the drum interior 24 into a lower first drum region 26 between the lower drum part 16 and the sieve plate 14 and a second, overhead drum area 28 between the screen plate 14 and the upper drum part 10.
  • the drive shaft 18, which is designed as a hollow shaft up to the transition point with the screen plate 14 and offers an outlet 30 for contaminated liquid to be supplied at the transition point, serves at the same time for supplying or loading the centrifuge drum with a reprocessing device liquid containing solids; independently of this and in addition, an annular outlet 32 is provided in the upper, narrow-side end region of the drum upper part 10, which outlet is connected to a drain line 34 shown schematically in FIG. 1; in the case of continuous loading by means of the inlet 30, treated fluid exits the interior of the drum in a cleaned manner via openings 36 formed in the upper flat side of the upper drum part 10.
  • the slightly conical sieve plate 14 forms a hollow shaft section 38 in its central area, which is slidable and axially displaceable on the drive shaft 18 (which is designed as a solid shaft in this area), the hollow shaft section having an annular shoulder 40 in its end area pointing downward in the figures forms; on the other hand, the hollow shaft section 38 is delimited by the conical sieve surface of the sieve plate 14 provided with a small step.
  • a correspondingly adapted hollow shaft section 42 of the drum part 12 slidably sits on the outer circumference of the hollow shaft section 38, in such a way that the hollow shaft section 42, which is shorter than the hollow shaft section 38, slides on the hollow shaft section 38, limited at one end by the ring shoulder 40 , limited at the other end by the conical part of the screen plate 14, can execute.
  • Drum part 12 and screen plate 14 are axially displaceable on the drive shaft 18, but are firmly connected to the shaft 18 by suitable measures in the direction of rotation.
  • An axial movement or displacement of the drum part 12 is brought about by a pair of pneumatic cylinders 46, which are only shown schematically and interact with an adjusting ring or adjusting element 44 and which, depending on the state of movement of an actuator engaging in the element (roller bearing) 44 (direction of movement is in the vertical direction) 2), move the element 44 up and down and thus cause the conical drum part 12 firmly seated thereon to move between the end positions described above along the underlying hollow shaft section 38 of the screen plate 14.
  • the drum part 12 is assigned a partially interrupted ring slot 50 formed in the rotor lower part 16 as the first outlet, and likewise the sieve plate 14 has a ring-shaped circumferential circumference formed in the transition region between the rotor lower part 16 and the drum upper part 10 and interrupted ring slot 52 assigned as a second outlet.
  • the drum part 12 In the position of FIG. 2, which corresponds to a centrifuging operation, the drum part 12 is positioned in such a way that it closes the ring slot 50 with its radial peripheral edge, and likewise the position of the screen plate 14 shown in FIG. 2 ensures that its outer, Circumferential edge 54 stepped in cross section closes the ring slot 52.
  • the ring slot 50 is assigned to the first drum region 26, provided by the sieving action of the sieve plate 14 for collecting liquid without solid components, while the ring slot 52 is on the radially largest possible circumferential side of the second, for the collection of the solid particles provided drum area is arranged and, see. the further position representations of FIGS. 3 and 4, as well as the ring slot 50 can be exposed by successive displacement movements of the units 12 and 14 for discharging the components collected therein.
  • the actual centrifuging operation takes place in the shift position according to FIG. when the drum rotates, liquid containing solids, for example with coolant emulsion provided with manufacturing residues, is introduced from above via the partially hollow drive shaft 18 and its bottom outlet 30.
  • the screen plate 14 closes the ring slot 52 on the drive shaft 18 in the upper displacement position shown in FIG. 2, and the drum part 12 closes the ring slot 50 with its radial peripheral region in its upwardly advanced position.
  • the present invention is not limited to the exemplary embodiment described, so it is not only possible to implement the described movement of the movable drum components in a different way and, for example, by means of electrical actuators, but also the shape of the drum or the slots, sealing options, etc. can be designed almost arbitrarily and are preferred to the respective
  • the purpose of the centrifuge, which is particularly suitable for cleaning coolant emulsions after industrial use, is by no means restricted to this.

Landscapes

  • Centrifugal Separators (AREA)

Abstract

L'invention concerne un centrifugeur permettant de traiter des fluides mélangés à des matières solides, en particulier de purifier des fluides de refroidissement ou émulsions analogues provenant d'environnements de fabrication industriels. Ce centrifugeur comprend un tambour conique double (10, 12, 14, 16), pouvant être mu en rotation par une unité d'entraînement et dans lequel le fluide à traiter, contenant lesdites matières solides, peut être chargé à travers une entrée (18, 30). Selon la présente invention, ce tambour, conçu en plusieurs parties, comprend des premiers moyens d'évacuation (50) conçus pour évacuer le fluide préparé situé à l'intérieur dudit tambour, lors de la rotation de ce dernier, et des seconds moyens d'évacuation (52) conçus pour évacuer les matières solides séparées, lors de la rotation du tambour. Ces premiers et seconds moyens d'évacuation peuvent être ouverts de façon séquentielle par un mouvement d'une partie (12, 14) du tambour par rapport à une autre partie (10) dudit tambour.
EP02803372A 2001-11-20 2002-11-15 Centrifugeur Withdrawn EP1448308A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10156589 2001-11-20
DE2001156589 DE10156589A1 (de) 2001-11-20 2001-11-20 Zentrifuge
PCT/EP2002/012790 WO2003043742A1 (fr) 2001-11-20 2002-11-15 Centrifugeur

Publications (1)

Publication Number Publication Date
EP1448308A1 true EP1448308A1 (fr) 2004-08-25

Family

ID=7706132

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02803372A Withdrawn EP1448308A1 (fr) 2001-11-20 2002-11-15 Centrifugeur

Country Status (4)

Country Link
EP (1) EP1448308A1 (fr)
AU (1) AU2002356604A1 (fr)
DE (1) DE10156589A1 (fr)
WO (1) WO2003043742A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202008011013U1 (de) * 2008-08-18 2009-10-01 Boll & Kirch Filterbau Gmbh Zentrifuge und Zentrifugenrotor hierfür
CN104275246B (zh) * 2013-07-03 2016-07-27 何贵庭 一种沉降过滤离心机及其方法
DE102020128748A1 (de) * 2020-11-02 2022-05-05 Gea Westfalia Separator Group Gmbh Separator

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2653355A1 (de) * 1976-11-24 1978-06-01 Messerschmitt Boelkow Blohm Zentrifuge
US5431814A (en) * 1993-10-22 1995-07-11 Jorgensen; Glen Centrifugal filter apparatus and method
JP2000140705A (ja) * 1998-11-04 2000-05-23 Horyo Sangyo Kk 遠心分離装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO03043742A1 *

Also Published As

Publication number Publication date
WO2003043742A1 (fr) 2003-05-30
DE10156589A1 (de) 2003-08-21
AU2002356604A1 (en) 2003-06-10

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