EP0042899B1 - Mit einer Kontrollvorrichtung des Füllungsgrades und einer Waschvorrichtung ausgerüstete Trockenschleuder mit zylindrischer Trommel - Google Patents

Mit einer Kontrollvorrichtung des Füllungsgrades und einer Waschvorrichtung ausgerüstete Trockenschleuder mit zylindrischer Trommel Download PDF

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Publication number
EP0042899B1
EP0042899B1 EP19800400990 EP80400990A EP0042899B1 EP 0042899 B1 EP0042899 B1 EP 0042899B1 EP 19800400990 EP19800400990 EP 19800400990 EP 80400990 A EP80400990 A EP 80400990A EP 0042899 B1 EP0042899 B1 EP 0042899B1
Authority
EP
European Patent Office
Prior art keywords
support
washing device
load control
bowl
product
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.)
Expired
Application number
EP19800400990
Other languages
English (en)
French (fr)
Other versions
EP0042899A1 (de
Inventor
Claude Delfosse
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.)
Fives Cail Babcock SA
Original Assignee
Fives Cail Babcock 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 Fives Cail Babcock SA filed Critical Fives Cail Babcock SA
Priority to DE8080400990T priority Critical patent/DE3066685D1/de
Priority to EP19800400990 priority patent/EP0042899B1/de
Publication of EP0042899A1 publication Critical patent/EP0042899A1/de
Application granted granted Critical
Publication of EP0042899B1 publication Critical patent/EP0042899B1/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
    • B04B15/00—Other accessories for centrifuges
    • B04B15/12—Other accessories for centrifuges for drying or washing the separated solid particles

Definitions

  • the subject of the present invention is a centrifugal wringer with a cylindrical basket operating in repetitive cycles during which the product to be spun is loaded into the basket, the loading being controlled by a device which interrupts the feeding when the layer of product to be spun reaches a predetermined thickness on the wall of the basket (such a device is described by example in US-A-2 328 394), then, after a first spin, the product is washed by a sprayed fluid by means of a vertical ramp pierced by orifices or fitted with spray nozzles and placed inside the basket and finally the washed and wrung product is discharged and evacuated.
  • the position of the ramp must be adjusted according to the thickness of the layer of product to be wrung on the wall of the basket. Indeed, if the jets emitted by the ramp are spaced from each other when they arrive on the product layer, there will remain on it strips of poorly washed product and the product spun will not have the desired quality. If, on the contrary, the jets of the ramp overlap, there will be formed on the product layer, in the overlapping areas, grooves resulting from an overly thorough washing and possibly an excessive recasting of the product; moreover, the washing efficiency in the lower and upper limit zones of the product layer will be poor.
  • the object of the present invention is to eliminate these drawbacks and to carry out a uniform washing over the entire layer of product, whatever the thickness of this layer and the solids content of the product to be wrung. This goal is achieved by slaving the position of the washing ramp to the position of the load controller probe.
  • the centrifugal wringer object of the invention as designated in the preamble of claim 1 is characterized in that the washing ramp is mounted on a mobile support kinematically linked to the feeler of the load controller or to its support, so that the position of the ramp is a function of the thickness of the product layer loaded in the basket.
  • the probe is constituted by a rotary arm mounted on a support whose position is adjustable relative to the wringer tank, this arm being movable between an active position and an inactive position fixed relative to said support and the adjustment of the thickness of the layer of admitted product being effected by displacement of this support on the tank, it is the support of the washing ramp which is kinematically linked to the support of the probe.
  • the support of the load controller is rotatably mounted around a vertical axis
  • the ramp is mounted on a rotary support whose axis of rotation coincides with the axis of the ramp and the two supports are connected by a connecting rod articulated on the supports at points distant from their axes of rotation.
  • the distances between the axis of rotation and the axis of articulation of the connecting rod on each of the supports and the length of the connecting rod are chosen so that the ramp ensures a uniform distribution of the washing fluid over the entire height of the basket, whatever whatever the thickness of the product layer at the end of loading.
  • Figure 1 is a sectional view through a vertical plane of the basket and the tank of a centrifugal wringer comprising the present invention
  • Figure 2 is a top view of the basket, the washing ramp and the loading controller of the wringer of Figure 1; and
  • Figure 3 is a partial view, in elevation, of the washing ramp showing its support mode. °
  • the centrifugal wringer shown in the drawing comprises a basket 10, the bottom of which is fixed to the end of a vertical shaft 12 and of which. "The cylindrical wall, perforated, is coated with a screen 14.
  • the shaft 12 is suspended pendulumly on a support, not shown, and coupled to a drive motor.
  • the basket 10 is placed in a fixed tank 16 where the liquid phase of the product to be wrung is collected. At the end of spinning, the product is detached from the sieve by a ploughshare and discharged through an opening provided in the bottom of the basket.
  • the wringer For loading the basket, the wringer is supplied from a mixer 18 by a chute 20 provided with a valve 22, the shutter of which is controlled by a jack 24; the movements of the jack are controlled by a solenoid valve 26.
  • a loading controller 28 controls, by means of the solenoid valve 26, the closing of the valve 22.
  • the loading controller 28 is constituted by a feeler finger 30 fixed to the end of a rotary vertical shaft mounted on a support 32 comprising an arm 34 pivotally mounted, around a vertical axis 36, on the tank 16.
  • the feeler 30 is movable between an active position and an inactivated position which are fixed relative to the support 32, the passage from one position to the other causing the closing or opening of a switch placed on the control circuit of the solenoid valve 26.
  • the probe Before loading, the probe is placed in the active position and its position in the basket, on which the thickness of the layer at the end of loading will depend, is adjusted by rotation of the support 32. Locking means not shown are provided to fix the support 32 on the tank, in the selected position.
  • the layer of product to be wrung which forms on the wall of the basket increases in thickness until it comes into contact with the probe 30; at this time, the latter suddenly goes into the inactive position and commands the closing of the valve 22.
  • a washing ramp 38 pierced with calibrated orifices or provided with spray nozzles is disposed vertically inside the basket; it is supplied with an appropriate washing fluid: water, steam, solution of the product to be wrung, etc.
  • This ramp is mounted in a sleeve 40 integral with the tank 16 so as to be able to rotate around its axis and rests, by l 'Intermediate of a nut 42 screwed on a threaded part of the ramp, on a support arm 44 bearing on the sleeve 40.
  • a stud formed at the end of a screw 46 secured to the arm 44 and received in a groove longitudinal of the ramp makes it possible to fasten the arm and the ramp in rotation while allowing vertical movements of the ramp.
  • the arms 34 and 44 are connected by a connecting rod 48 so that the rotation of the support 32 causes the rotation of the ramp 38.
  • any adjustment of the position of the charge controller will be accompanied by a modification of the orientation boom jets.
  • the positions of the joints between the connecting rod and the arms are chosen so that the jets of the ramp cover the layer of product to be washed, over its entire height and without appreciable overlap, as shown in FIG. 1, whatever the thickness of the layer at the end of loading.
  • the thickness of the layer to be washed depends on the solids content of the product to be wrung, means have been provided for adjusting the position of the support 44 relative to the support 32.
  • the articulation axis 50 between the connecting rod 48 and the arm 34 is movable in a slot 52 cut in a part integral with the arm 34; a nut screwed onto a threaded part of this axis allows it to be locked in the chosen position.
  • the kinematic connection between the loading controller and the washing ramp could be achieved by other known means; instead of rotating the ramp around its axis, it could be moved in translation; the loading controller could be moved along a path other than circular.
  • the loading controller could be of a different type from that described and in some cases the support of the ramp could be kinematically linked to the probe and no longer to its support. It is understood that all these modifications fall within the scope of the invention.
  • the invention is particularly applicable to centrifugal dryers for candy massages and for crystallized chemicals.

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  • Centrifugal Separators (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Claims (4)

1. Trockenschleuder mit zylindrischer Trommel mit Vertikalachse, bestehend aus einer mit einem Fühler (30) versehenen Kontrollvorrichtung des Füllungsgrades und einer innerhalb der Trommel angeordneten vertikalen WaschVorrichtung (38), deren Stellung einstellbar ist, dadurch gekennzeichnet, dass die Waschvorrichtung (38) auf einer beweglichen, mit dem (Fühler (30) der Kontrollvorrichtung des Füllurigsgrades oder mit dem Halter (32) dieser letzten kinematische verbundenen Halter (44) so montiert ist, dass die Stellung der Waschvorrichtung der Dicke der in der Trommel beschickten Gutschicht entspricgt.
2. Trockenschleuder mit zylindrischer Trommel mit Vertikalachse, bestehend aus einer Kontrollvorrichtung des Füllungsgrades, die mit einem Fühler (30) versehen ist, der aus einem drehbaren, auf einem Halter (32) mit einstellbarer Stellung montierten Arm besteht, wobei dieser Arm sich zwischen einer dem Halter (32) gegenüber festen aktiven und inaktiven Stellung bewegt und die Einstellung der Dicke der beschickten Gutschicht durch die Versetzung des Halters (32) erfolgt, und einer innerhalb der Trommel vertikalen Waschvorrichtung (38), dadurch gekennzeichnet, dass die Waschvorrichtung (38) auf einem mit dem Halter (32) der Kontrollvorrichtung des Füllungsgrades Kinetisch verbundenen beweglichen Halter montiert ist.
3. Trockenschleuder nach Anspruch 2, dadurch gekennzeichnet, dass der Halter (32) der Kontrollvorrichtung des Füllungsgrades drehbar um eine Vertikalachse montiert ist, die Waschvorrichtrung (38) auf einem drehbaren Hälter (44) montiert ist, dessen Drehachse mit der Waschvorrichtungsachse zusammenfallt, und dass die beiden Halter durch eine auf den Haltern (32 und 44) in von deren Drehachse entfernten Punkten angelenkte Pleuelstange (48) verbunden sind so dass die Waschvorrichtung (38) eine gleichmässige Verteilung des Waschmittels über die gesamte Höhe der Trommel (10) unabhängig von der Dicke der Gutschicht in der Trommel gewährleistet.
4. Trockenschlender nach Anspruch 3, dadurch gekennzeichnet, dass die Stellung der Gelenkachse der Pleuelstange (48) auf einem der Halter verstellbar ist.
EP19800400990 1980-07-01 1980-07-01 Mit einer Kontrollvorrichtung des Füllungsgrades und einer Waschvorrichtung ausgerüstete Trockenschleuder mit zylindrischer Trommel Expired EP0042899B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE8080400990T DE3066685D1 (en) 1980-07-01 1980-07-01 Centrifugal dryer with cylindrical bowl provided with a load control and a washing device
EP19800400990 EP0042899B1 (de) 1980-07-01 1980-07-01 Mit einer Kontrollvorrichtung des Füllungsgrades und einer Waschvorrichtung ausgerüstete Trockenschleuder mit zylindrischer Trommel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19800400990 EP0042899B1 (de) 1980-07-01 1980-07-01 Mit einer Kontrollvorrichtung des Füllungsgrades und einer Waschvorrichtung ausgerüstete Trockenschleuder mit zylindrischer Trommel

Publications (2)

Publication Number Publication Date
EP0042899A1 EP0042899A1 (de) 1982-01-06
EP0042899B1 true EP0042899B1 (de) 1984-02-22

Family

ID=8187380

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19800400990 Expired EP0042899B1 (de) 1980-07-01 1980-07-01 Mit einer Kontrollvorrichtung des Füllungsgrades und einer Waschvorrichtung ausgerüstete Trockenschleuder mit zylindrischer Trommel

Country Status (2)

Country Link
EP (1) EP0042899B1 (de)
DE (1) DE3066685D1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4414602A1 (de) * 1994-04-27 1995-11-02 Pfeifer & Langen Verfahren zur Steuerung des Nutzungsgrades einer diskontinuierlich arbeitenden Zentrifuge, insbesondere einer Zuckerzentrifuge

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE73878C (de) * J. tobell in Zirkow b.Prag, Hufsstr.33 Vorrichtung an Deckcentrifugen für Zucker und dergleichen
FR1090939A (fr) * 1952-01-31 1955-04-05 Braunschweigische Maschb Ansta Dispositif à buses pour centrifugeurs

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Publication number Publication date
DE3066685D1 (en) 1984-03-29
EP0042899A1 (de) 1982-01-06

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