EP0062576A1 - Kontinuierlich arbeitende Zentrifuge - Google Patents

Kontinuierlich arbeitende Zentrifuge Download PDF

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Publication number
EP0062576A1
EP0062576A1 EP82400571A EP82400571A EP0062576A1 EP 0062576 A1 EP0062576 A1 EP 0062576A1 EP 82400571 A EP82400571 A EP 82400571A EP 82400571 A EP82400571 A EP 82400571A EP 0062576 A1 EP0062576 A1 EP 0062576A1
Authority
EP
European Patent Office
Prior art keywords
shaft
continuous
perforated wall
rotation
members
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.)
Granted
Application number
EP82400571A
Other languages
English (en)
French (fr)
Other versions
EP0062576B1 (de
Inventor
Luc Darbonne
Hubert Darbonne
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.)
Daregal SA
Original Assignee
Daregal SA
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 Daregal SA filed Critical Daregal SA
Priority to AT82400571T priority Critical patent/ATE13819T1/de
Publication of EP0062576A1 publication Critical patent/EP0062576A1/de
Application granted granted Critical
Publication of EP0062576B1 publication Critical patent/EP0062576B1/de
Expired legal-status Critical Current

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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
    • B04B3/00—Centrifuges with rotary bowls in which solid particles or bodies become separated by centrifugal force and simultaneous sifting or filtering
    • B04B3/04—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 a conveying screw coaxial with the bowl axis and rotating relatively to the bowl

Definitions

  • the present invention relates to a continuous wringer, that is to say a wringer having a perforated wall of revolution driven in rotation about its axis, the product flow to be wrung circulating in the axial direction of the wringer.
  • spin dryers generally operate by successive loads, that is to say that a certain volume of material to be wrung is poured into the tank, generally with a vertical axis of the wringer and is removed therefrom after treatment.
  • Dryers, ovens or the like which consist of a wall of revolution driven in rotation about its axis and which operate continuously, the flow of product to be dried being driven in the axial direction of the device.
  • the axial displacement is obtained by simple gravity flow when the axis is inclined, by helical screws or fixed oblique walls which slide the material on the cylindrical wall or by helical fins integral with the wall which cause the material by lifting it along the peripheral wall to slide it by gravity downstream.
  • the treated material is subjected to a centrifugal force much greater than the force of gravity, which the plate against the wall and can not be used natural progression by gravity to circulate matter.
  • the present.invention aims to achieve, despite the above impossibilities, a continuous wringer in which the material progresses from the inlet to the outlet without being subjected to intense mechanical stresses.
  • the wringer combines, with the perforated wall of revolution driven in rotation about its axis, advancing members acting on the layer of material, the trajectory of the advancing members in the part where said members cooperate with the layer of treated material applied against the perforated wall comprising a component in the diametrical plane and an axial component directed downstream.
  • the material is, in the area of action of the advancing members, driven over a relatively small distance downstream but, due to the component in the diametral plane which can be substantially equal to the peripheral speed of the perforated wall therefore of the layer of material, there can be no jamming.
  • the advancement members are constituted by radial elements integral with a shaft mounted obliquely for rotation in the internal volume delimited by the wall of revolution, the length of each radial element being slightly less than the smallest distance from the tree to the perforated wall.
  • the shaft carrying the advancement members could be mounted with free rotation, the rotation being ensured by the thrust on the advancement organs of the material to be wrung; it is however preferable to drive the shaft in rotation positively, the direction of rotation and the speed of the shaft being such that, in the part of their circular trajectory where they come close to the wall, the ends of the radial elements move downstream, their peripheral speed being substantially equal to or preferably slightly higher than the peripheral speed of the internal surface of the perforated wall.
  • the advancement members are constituted by elements mounted for free rotation around ends of integral axes to form a zigzag shaft, the general line of the shaft being parallel to the generatrix of the drum. This makes it possible to use elements of identical radial length and to lengthen the drum of the wringer.
  • the wringer can have either a horizontal, vertical or oblique axis.
  • the perforated wall may be cylindrical, frustoconical or have any other form of director, in a broken or curvilinear line giving it a general cylindro-frustoconical shape, in coil, in barrel or other.
  • the drum In the case of a frustoconical or cylindro-frustoconical shape the drum can be convergent or diverging from upstream to downstream.
  • the downstream end of the shaft may be at a distance from the upper perforated wall propor that of the upstream end.
  • the longitudinal spacing of the neighboring radial elements must be smaller the less their axis of rotation, the lower the arc in which the radial elements cooperate with the mass of material, that is to say that the axis of rotation is closer to the wall, and that the angular spacing of the neighboring radial elements is greater.
  • the radial elements can be arranged in the form of radial plies, possibly consisting of discs, spokes having a greater or lesser elasticity, masses such as brushes or foam rollers, worms or radial longitudinal plies such as continuous walls, pallets or rakes.
  • the angle formed by the axis of rotation of the advancing member with the axis of the wringer drum is a function of the product to be treated and its mechanical characteristics as well as the desired flow rate.
  • the larger this angle the higher the axial component of the peripheral speed of the advancing member relative to the diametrical component, but the more the peripheral speed of the radial elements of the advancing member will vary within wide limits. if they are attached to the same tree. Due to the increase in the axial component, the material flow will be increased.
  • the speed of the wringer can, for a given spin speed, also be increased by increasing the number of advancing members acting on one revolution of the drum. It is also possible to increase the speed of rotation of the machine, but this is not always possible from the mechanical point of view or because of the mechanical resistance of the treated material.
  • the wringer according to the invention can be used for the continuous wringing of practically all mineral, animal or vegetable materials and in particular for preliminary treatment of the materials which must be subjected to drying by lyophilization, heating, etc.
  • Mechanical spinning is an energy-efficient means of extracting loose water such as washing water, etc.
  • the layer of material is stirred in the passage of the advancing members, which further facilitates the elimination of water compared to conventional wringing.
  • the wringer has, in the various embodiments, a perforated wall of revolution 1 which is represented as a cylindrical wall, which is rotated in a known manner around its axis so that the centrifugal force exerted on the material applied against the wall is several times greater than the force of gravity.
  • Reference 2 designates the perforations of which only a small number is shown.
  • a shaft 3 In this enclosure and in the embodiment of Figures 1 to 4 is mounted obliquely by bearings not shown, a shaft 3.
  • the points X where the cross-section 3 intersects the end surfaces of the drum are equidistant from said surface.
  • discs 4 On this shaft are mounted discs 4 which could be replaced by radial rods, pallets or the like depending on the nature of the material to be wrung. The diameters of these discs 4 or the lengths of the rods or the like are such that their peripheral end comes to substantially tangent to the interior surface of the wall 1. As illustrated in FIG.
  • the angular development is determined according to which each disc will cooperate with the material.
  • Figure 4 there is shown the discs with a thicker line 5 the part which cooperates with the material.
  • the peripheral speed of the internal surface of the wall 1 being equal to F, the discs are driven or tend to set, if they are mounted with free rotation on the axis 3 or if the latter is mounted at free rotation, under the effect of the thrust of the material., a peripheral speed f which, at the point of tangency with the wall, decomposes into a speed f p substantially equal to F and a longitudinal component fl directed downstream .
  • the material which has been introduced according to arrow R comes into contact successively with the upstream end of part 5 of the successive discs, moves in contact with the disc and is pushed towards the downstream by being moved, at each passage to the right of the advancing elements, by a distance l.
  • the discs 6 which could be replaced by radial rods, flat foam cylinders, impellers with peripheral edges of the blades shaped in barrel, worms having the same casing , etc. are each mounted on a shaft end 7, the successive shaft ends being joined by offset pieces 8 and all having the same orientation therefore being in the same plane.
  • the discs 6 are therefore carried by the parallel axes of a zigzag support piece.
  • the mechanical rigidity of the support part can result either from the rigid assembly between the parts 8 and the shaft ends 7 on which the discs 6 are mounted for free rotation, or from the fact that the parts 8 are supported by non-bracing shown connecting them, passing between the discs 6, with longitudinal crosspieces 9 fixed at their ends on the support pillars 10.
  • the discs 6 can be rotated for example for each disc from a pulley 11 mounted on an axial shaft 12, by a pulley 13 of which it is integral and a belt 14. It is thus master of the peripheral speed f of each disc by playing on the diameter of the pulley 11 which may be of technical interest. It would also be possible to mount the advancement elements with free rotation. Finally it is possible to modify the nature of the advancement elements according to the direction of progression of the material to adapt them to the modification of fluidity and density dry matter and some of them can be blowing and / or heating elements.

Landscapes

  • Centrifugal Separators (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Drying Of Solid Materials (AREA)
  • Medicines Containing Plant Substances (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Brushless Motors (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Cyclones (AREA)
  • Fats And Perfumes (AREA)
EP82400571A 1981-03-31 1982-03-30 Kontinuierlich arbeitende Zentrifuge Expired EP0062576B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82400571T ATE13819T1 (de) 1981-03-31 1982-03-30 Kontinuierlich arbeitende zentrifuge.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8106427 1981-03-31
FR8106427A FR2502985A1 (fr) 1981-03-31 1981-03-31 Essoreuse en continu

Publications (2)

Publication Number Publication Date
EP0062576A1 true EP0062576A1 (de) 1982-10-13
EP0062576B1 EP0062576B1 (de) 1985-06-19

Family

ID=9256816

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82400571A Expired EP0062576B1 (de) 1981-03-31 1982-03-30 Kontinuierlich arbeitende Zentrifuge

Country Status (14)

Country Link
US (1) US4432148A (de)
EP (1) EP0062576B1 (de)
JP (1) JPS588978A (de)
AT (1) ATE13819T1 (de)
CA (1) CA1166443A (de)
DE (1) DE3264235D1 (de)
DK (1) DK156816C (de)
ES (1) ES8301670A1 (de)
FI (1) FI69574C (de)
FR (1) FR2502985A1 (de)
IE (1) IE52722B1 (de)
IL (1) IL65393A (de)
NO (1) NO154040C (de)
YU (1) YU69782A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4038954A1 (de) * 1990-12-06 1992-06-11 Wolfgang Eder Zentrifuge

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4565015A (en) * 1983-07-27 1986-01-21 Gala Industries, Inc. Centrifugal pellet dryer
DE3430127A1 (de) * 1984-08-16 1986-02-27 Krauss-Maffei AG, 8000 München Vorrichtung und verfahren zum trocknen von insbesondere feinkoernigen feststoffpartikeln
JPS60177017U (ja) * 1984-05-02 1985-11-25 ザ・パツク株式会社 包装箱
JPH06255636A (ja) * 1993-02-26 1994-09-13 Asahi Breweries Ltd 天パットシート装着装置
WO1997025295A1 (de) * 1996-01-11 1997-07-17 Interlicense Den Haag B.V. Vorrichtung und verfahren zur aeroben behandlung organischer materie
US7958650B2 (en) * 2006-01-23 2011-06-14 Turatti S.R.L. Apparatus for drying foodstuffs

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE405373C (de) * 1921-04-19 1924-11-04 Alfred Hernscher Mit staendigem Durchlauf arbeitende stehende Siebschleudermaschine
FR1057268A (fr) * 1952-05-21 1954-03-08 G Pepin Fils Aine Ets Essoreuse à fonctionnement continu
FR1571581A (de) * 1967-06-16 1969-06-20

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1564665A (en) * 1923-07-16 1925-12-08 Leroy G Gates Centrifugal separator
US3313034A (en) * 1965-08-02 1967-04-11 Leo J Meyer Nut meat de-watering machine
DE3042674A1 (de) * 1980-11-12 1982-06-09 Georg 8201 Kolbermoor Schilp Schubzentrifuge

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE405373C (de) * 1921-04-19 1924-11-04 Alfred Hernscher Mit staendigem Durchlauf arbeitende stehende Siebschleudermaschine
FR1057268A (fr) * 1952-05-21 1954-03-08 G Pepin Fils Aine Ets Essoreuse à fonctionnement continu
FR1571581A (de) * 1967-06-16 1969-06-20

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4038954A1 (de) * 1990-12-06 1992-06-11 Wolfgang Eder Zentrifuge

Also Published As

Publication number Publication date
IL65393A0 (en) 1982-05-31
NO154040C (no) 1986-07-09
NO154040B (no) 1986-04-01
ATE13819T1 (de) 1985-07-15
DK145382A (da) 1982-10-01
DK156816B (da) 1989-10-09
IL65393A (en) 1985-03-31
US4432148A (en) 1984-02-21
DK156816C (da) 1990-02-26
JPS588978A (ja) 1983-01-19
FR2502985A1 (fr) 1982-10-08
NO821054L (no) 1982-10-01
ES510932A0 (es) 1983-02-01
FI821108A0 (fi) 1982-03-30
EP0062576B1 (de) 1985-06-19
FR2502985B1 (de) 1983-05-20
FI69574C (fi) 1986-03-10
FI821108L (fi) 1982-10-01
ES8301670A1 (es) 1983-02-01
IE820745L (en) 1982-09-30
YU69782A (en) 1986-08-31
IE52722B1 (en) 1988-02-03
CA1166443A (en) 1984-05-01
DE3264235D1 (en) 1985-07-25
FI69574B (fi) 1985-11-29

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