EP0007419A1 - Apparatus for preliming raw sugar juice - Google Patents

Apparatus for preliming raw sugar juice Download PDF

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Publication number
EP0007419A1
EP0007419A1 EP79101919A EP79101919A EP0007419A1 EP 0007419 A1 EP0007419 A1 EP 0007419A1 EP 79101919 A EP79101919 A EP 79101919A EP 79101919 A EP79101919 A EP 79101919A EP 0007419 A1 EP0007419 A1 EP 0007419A1
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EP
European Patent Office
Prior art keywords
chambers
raw juice
inlet
juice
outlet
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EP79101919A
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German (de)
French (fr)
Inventor
Heinrich Dipl.-Ing. Ahlers
Peter Dr. Ing. Mosel
Siegfried Matusch
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Selwig & Lange Maschinenfabrik
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Selwig & Lange Maschinenfabrik
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    • C—CHEMISTRY; METALLURGY
    • C13—SUGAR INDUSTRY
    • C13B—PRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
    • C13B20/00—Purification of sugar juices
    • C13B20/02—Purification of sugar juices using alkaline earth metal compounds

Definitions

  • the invention relates to a device for pre-liming the raw juice obtained during the beet processing in the extraction, consisting of a standing cylindrical container which has an inlet for the raw juice at one end and an outlet for the treated raw juice and an inlet for lime milk at its other end has and is divided into approximately superimposed chambers by approximately horizontally arranged intermediate floors, which are in fluid-exchanging connection with one another via passage openings provided in the intermediate floors and are acted upon by stirring elements which are fastened to a driven shaft, guided vertically and centrally through the container, in approximately horizontal ones Rotate levels and bring about a mixing of the raw juice of one chamber with the raw juice of the adjacent chamber by a partial flow of raw juice counter to the flow direction of the raw juice from the inlet to the outlet.
  • Such an embodiment corresponds to the pre-liming vessel according to Naria ("Technologie des Zuckers”, Verlag M. & H. Schaper Hannover 1968, page 271).
  • This previously known pre-liming vessel consists of a standing cylinder see vessel with a vertical wave and is divided into chambers by horizontal intermediate floors, which have a central opening and several openings on the circumference. Large blades are mounted on the vertical shaft in every second chamber, which, when rotating, convey a stream of juice centrifugally through the chamber and the outer openings to the top and bottom, non-padded neighboring compartments, where it mixes with the existing juice. From these paddle-less chambers, which are equipped with short stirring arms, the juice flows back through the central openings in the intermediate floors to the neighboring chambers. The raw juice enters the first chamber tangentially at the top. The lime required for the preparation is fed into the last chamber, from which the finished juice is also pumped, in proportion to the flow rate.
  • the raw juice obtained in the extraction is raised in about seven stages formed by the individual chambers from a pH of 6.4 by adding about 0.15 to 0.2% CaO to a value of 11.8 .
  • This increase in pH should take place in a total time of approximately 16 to 20 minutes. Exact adherence to this time is of great importance for the preparation process.
  • the internal circulation which takes place in the chambers with blades in the centrifugal direction and in the bladeless chambers in the centripetal direction, achieves a backflow of processed juice upwards, so that the pH levels from bottom to top in accordance the principle of progressive pre-liming.
  • These stages depend on the number of revolutions and can be calculated as well as the throughput time and the connection opening between the chambers.
  • the main disadvantage of the known device according to the Naria system lies in the difficult adjustability of the pH in the individual chambers. In practice, therefore, almost exclusively liming systems based on the Brieghel-Müller system are used (see above page 270). This is an approximately U-shaped cross-section, open at the top, lying horizontally.
  • An advantage of this known device lies in the simple adjustability of the pH values.
  • a major disadvantage, however, is the need to install this system inside the factory building for thermal reasons. Another disadvantage is the large space requirement due to the horizontal arrangement.
  • the object of the invention is to improve the device explained at the outset with regard to the partial flow return, in order thereby to achieve more precise pH values in the individual chambers.
  • stirring elements for the partial flow return are formed by a pipe system which consists of several, approximately angularly shaped and each connecting two chambers pipes, each of which with its upper end having a suction opening one approximately perpendicular pipe leg opens into the upper of the two chambers and with the end of its approximately horizontal pipe leg having an outflow opening into the lower of the two chambers if the raw juice inlet and drain are on the container.
  • the new system for partial flow recirculation works according to the principle of a centrifugal pump.
  • the quantity to be conveyed or circulated can be adjusted in a particularly simple manner via the speed of the vertical drive shaft or via the change in the intake cross section. It is therefore advantageous according to the invention if the intake opening has a regulating member which changes its intake cross section.
  • the drive for the pipe system which is guided perpendicularly and centrally through the container, is formed by a shaft. It would be e.g. It is possible to replace the shaft with a lattice structure with a hollow interior, into which the individual angle tubes can be particularly easily attached. The only essential thing is that all angle tubes are connected in a rotationally fixed manner to a central drive.
  • the tubes forming the tube system are each formed in an exactly angular manner. Rather, it is crucial that the outflow opening has a greater radial distance from the axis of rotation than the suction opening, and that each tube rotates about a vertical axis.
  • the adjustment mechanisms for the regulating members changing the intake cross section can be arranged in a particularly simple manner.
  • a linkage can be guided upwards from below through the hollow central drive to the individual control elements.
  • the actual adjustment devices for the linkage can then be arranged on the foundation receiving the container.
  • a pneumatically or hydraulically actuated, maintenance-free adjusting cylinder directly in the area of each control element on the tube itself or on the central drive.
  • each angled tube rotating about the vertical axis of rotation conveys an exactly adjustable partial flow from an overhead chamber into an underlying chamber when the raw juice flows through the container from bottom to top.
  • the suction opening of each angled tube lies in the lower chamber and the outflow opening in the upper chamber.
  • the stages result from the partial flow feedback wise increase in pH.
  • the intermediate floors can be slightly conical, so that any deposits can be removed more easily. This process can be supported by the fact that the approximately horizontally extending leg of each tube is arranged closely above the intermediate floor assigned to it. Furthermore, it may be expedient to arrange the passage openings provided in the intermediate floors alternately only on the circumference or only in the center of the intermediate floors. As a result, the raw juice flowing through the container is forced through a zigzag pass. In such an embodiment, depending on the arrangement of the passage openings, the intermediate floors can be conical upwards or downwards.
  • the device shown consists of a standing cylindrical container 1 which has a bottom 2 which tapers conically downwards and on which an inlet 3 for raw juice is arranged. There is an outlet 5 for the treated raw juice directly below the container lid 4; the juice is released through free overflow. An inlet 6 for milk of lime is also provided directly below the container lid 4.
  • the container 1 is divided by intermediate floors 7 into eight superimposed chambers 8. All intermediate floors 7 are slightly conical upwards and only have through openings 9 on their circumference, through which the individual chambers 8 are in fluid-exchanging connection with one another.
  • a shaft 10 is guided centrally through the container 1 and is driven by a drive (not shown) and rotates at the angular velocity ⁇ .
  • a pipe system that consists of several, approximately angular tubes 11.
  • Each pipe 11 connects two chambers 8 to one another and opens with its upper end, which has a suction opening 12, of an approximately perpendicular pipe leg 11a into the respective upper of the two chambers and with the end having an outflow opening 13 of its approximately horizontal pipe leg 11b into the lower one of the two chambers.
  • Figure 2 shows the arrangement and design of a tube 11 on an enlarged scale.
  • the intermediate floors 7 are not conical, but aligned exactly horizontally.
  • passage openings 9 are arranged alternately only on the circumference or only in the center of passage openings 14.
  • FIG. 2 also shows that the suction opening 12 of each tube 11 has a control element 15 which changes its suction cross section. It can also be seen that the horizontally extending leg 11b of each tube 11 is arranged closely above the intermediate floor 7 assigned to it.
  • the dashed and arrowed line 16 shows the flow path of the raw juice from below through the container 1 upwards.
  • the other arrows show the suction and outflow direction of each partial flow return.
  • the arrows 17 indicate the zigzag-shaped passage of the raw juice through the container 1.
  • the arrows 18, 19 and 20 symbolize the partial flow return.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • Organic Chemistry (AREA)
  • Dairy Products (AREA)
  • Beverage Vending Machines With Cups, And Gas Or Electricity Vending Machines (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
  • Food-Manufacturing Devices (AREA)

Abstract

The juice of sugar beet obtd. by extraction is limed preliminarily in a vertical cylinder having at one end an inlet for the raw juice and at its other end an outlet for the treated product, together with a feed opening for the milk of lime. The cylinder is divided by roughly horizontal partitions into chambers one above the other. These have passages which allow an interchange of fluid between them. Agitators for the fluid are fixed to a vertical shaft, centrally positioned in the cylinder. These bring about a partial reversal of the flow from the inlet to the outlet and a mixing of the raw juice of one chamber with that of an adjacent chamber. The flow reversing agitators are formed by a system of pipes each of which is bent at an angle and connects two chambers together. Each pipe has a suction inlet formed at the top end of a vertical leg and an outlet at the outer end of an horizontal leg, in the lower of the two chambers, when the cylinder is arranged with the raw juice inlet below and the outlet above. Improves the design of the machine particularly as regards the partial reversal of flow so that more accurate fixing of the pH values is obtd. in the separate chambers.

Description

Die Erfindung betrifft eine Einrichtung zur Vorkalkung des bei der Rübenverarbeitung in der Extraktion gewonnenen Rohsaftes, bestehend aus einem stehenden zylindrischen Behälter, der an seinem einen Ende einen Einlauf für den Rohsaft und an seinem anderen Ende einen Ablauf für den behandelten Rohsaft sowie einen Zulauf für Kalkmilch aufweist und durch angenähert horizontal angeordnete Zwischenböden in übereinanderliegende Kammern unterteilt ist, die über in den Zwischenböden vorgesehene Durchlaßöffnungen untereinander in flüssigkeitsaustauschender Verbindung stehen und von Rührelementen beaufschlagt werden, die an einer angetriebenen, lotrecht und zentrisch durch den Behälter geführten Welle befestigt sind, in angenähert horizontalen Ebenen umlaufen und durch eine Teilstromrückführung von Rohsaft entgegen der Durchströmrichtung des Rohsaftes vom Einlauf zum Ablauf eine Vermischung des Rohsaftes der einen Kammer mit dem Rohsaft der benachbarten Kammer bewirken.The invention relates to a device for pre-liming the raw juice obtained during the beet processing in the extraction, consisting of a standing cylindrical container which has an inlet for the raw juice at one end and an outlet for the treated raw juice and an inlet for lime milk at its other end has and is divided into approximately superimposed chambers by approximately horizontally arranged intermediate floors, which are in fluid-exchanging connection with one another via passage openings provided in the intermediate floors and are acted upon by stirring elements which are fastened to a driven shaft, guided vertically and centrally through the container, in approximately horizontal ones Rotate levels and bring about a mixing of the raw juice of one chamber with the raw juice of the adjacent chamber by a partial flow of raw juice counter to the flow direction of the raw juice from the inlet to the outlet.

Eine derartige Ausführungsform entspricht dem Vorkalkungsgefäß nach Naveau ("Technologie des Zuckers", Verlag M. & H. Schaper Hannover 1968, Seite 271). Dieses vorbekannte Vorkalkungsgefäß besteht aus einem stehenden zylindrisehen Gefäß mit einer lotrechten Welle und ist durch horizontale Zwischenböden, die eine zentrale Öffnung und mehrere öffnungen am Umfang besitzen, in Kammern unterteilt. An der lotrechten Welle sind in jeder zweiten Kammer große Schaufeln montiert, die beim Rotieren einen Saftstrom zentrifugal durch die Kammer und die äußeren Öffnungen in die oben und unten liegenden, schaufellosen Nachbarabteile befördern, wo er sich mit dem vorhandenen Saft vermischt. Aus diesen schaufellosen Kammern, die mit kurzen Rührarmen ausgestattet sind, fließt der Saft durch die zentralen Öffnungen der Zwischenböden in die benachbarten Kammern zurück. Der Rohsaft tritt tangential oben in die erste Kammer ein. Der für die Aufbereitung erforderliche Kalk wird proportional zur Abflußmenge unten in die letzte Kammer eingeführt, aus der auch der fertig aufbereitete Saft abgepumpt wird.Such an embodiment corresponds to the pre-liming vessel according to Naveau ("Technologie des Zuckers", Verlag M. & H. Schaper Hannover 1968, page 271). This previously known pre-liming vessel consists of a standing cylinder see vessel with a vertical wave and is divided into chambers by horizontal intermediate floors, which have a central opening and several openings on the circumference. Large blades are mounted on the vertical shaft in every second chamber, which, when rotating, convey a stream of juice centrifugally through the chamber and the outer openings to the top and bottom, non-padded neighboring compartments, where it mixes with the existing juice. From these paddle-less chambers, which are equipped with short stirring arms, the juice flows back through the central openings in the intermediate floors to the neighboring chambers. The raw juice enters the first chamber tangentially at the top. The lime required for the preparation is fed into the last chamber, from which the finished juice is also pumped, in proportion to the flow rate.

In derartigen Einrichtungen wird der in der Extraktion gewonnene Rohsaft in etwa sieben, durch die einzelnen Kammern gebildeten Stufen von einem pH-Wert von 6,4 durch Zugabe von etwa 0,15 bis 0,2 % CaO auf einen Wert von 11,8 angehoben. Diese Steigerung des pH-Wertes soll in einer Gesamtzeit von ca. 16 bis 20 Minuten erfolgen. Die exakte Einhaltung dieser Zeit ist von großer Bedeutung für den Aufbereitungsprozeß.In such devices, the raw juice obtained in the extraction is raised in about seven stages formed by the individual chambers from a pH of 6.4 by adding about 0.15 to 0.2% CaO to a value of 11.8 . This increase in pH should take place in a total time of approximately 16 to 20 minutes. Exact adherence to this time is of great importance for the preparation process.

Bei der eingangs erläuterten Einrichtung wird durch die innere Zirkulation, die in den Kammern mit Schaufeln in zentrifugaler Richtung und in den schaufellosen Kammern in zentripetaler Richtung erfolgt, ein Rückfluß von aufbereitetem Saft nach oben erreicht, so daß die pH-Stufen von unten nach oben gemäß dem Prinzip der progressiven Vorkalkung durchlaufen werden. Diese Stufen sind von der Umdrehungszahl abhängig und können ebenso wie die Durchlaufzeit und die Verbindungsöffnung zwischen den Kammern berechnet werden.In the case of the device explained at the outset, the internal circulation, which takes place in the chambers with blades in the centrifugal direction and in the bladeless chambers in the centripetal direction, achieves a backflow of processed juice upwards, so that the pH levels from bottom to top in accordance the principle of progressive pre-liming. These stages depend on the number of revolutions and can be calculated as well as the throughput time and the connection opening between the chambers.

Der wesentliche Nachteil der vorbekannten Einrichtung gemäß dem System Naveau liegt in der schwierigen Einstellbarkeit des pH-Wertes in den einzelnen Kammern. In der Praxis werden daher nahezu ausschließlich Vorkalkungseinrichtungen nach dem System Brieghel-Müller verwendet (a.a.O. Seite 270). Es handelt sich hier um einen im Querschnitt angenähert U-förmig ausgebildeten, oben offenen, horizontal liegenden Trog. Ein Vorzug dieser bekannten Einrichtung liegt in der einfachen Einstellbarkeit der pH-Werte. Von großem Nachteil ist hingegen die Notwendigkeit, diese Anlage aus wärmetechnischen Gründen innerhalb des Fabrikgebäudes aufzustellen. Nachteilig ist ferner der große, durch die liegende Anordnung bedingte Raumbedarf.The main disadvantage of the known device according to the Naveau system lies in the difficult adjustability of the pH in the individual chambers. In practice, therefore, almost exclusively liming systems based on the Brieghel-Müller system are used (see above page 270). This is an approximately U-shaped cross-section, open at the top, lying horizontally. An advantage of this known device lies in the simple adjustability of the pH values. A major disadvantage, however, is the need to install this system inside the factory building for thermal reasons. Another disadvantage is the large space requirement due to the horizontal arrangement.

Der Erfindung liegt die Aufgabe zugrunde, die eingangs erläuterte Einrichtung hinsichtlich der Teilstromrückführung zu verbessern, um dadurch in den einzelnen Kammern exaktere pH-Werte zu erreichen.The object of the invention is to improve the device explained at the outset with regard to the partial flow return, in order thereby to achieve more precise pH values in the individual chambers.

Diese Aufgabe wird gemäß der Erfindung dadurch gelöst, daß die Rührelemente für die Teilstromrückführung durch ein Rohrsystem gebildet sind, das aus mehreren, angenähert winkelförmig ausgebildeten und jeweils zwei Kammern miteinander verbindenden Rohren besteht, von denen jedes Rohr mit seinem oberen, eine Ansaugöffnung aufweisenden Ende eines angenähert lotrecht verlaufenden Rohrschenkels in die jeweils obere der beiden Kammern und mit dem eine Ausströmöffnung aufweisenden Ende seines angenähert horizontal verlaufenden Rohrschenkels in die jeweils untere der beiden Kammern mündet, wenn an dem Behälter der Rohsaft-Einlauf unten und der -Ablauf oben liegen.This object is achieved according to the invention in that the stirring elements for the partial flow return are formed by a pipe system which consists of several, approximately angularly shaped and each connecting two chambers pipes, each of which with its upper end having a suction opening one approximately perpendicular pipe leg opens into the upper of the two chambers and with the end of its approximately horizontal pipe leg having an outflow opening into the lower of the two chambers if the raw juice inlet and drain are on the container.

Wesentlich für dieses neue System ist die Differenz zwischen Iden radialen Abständen der Ansaugöffnung sowie der Ausströmöffnung von der zentralen Drehachse. Bezeichnet man den radialen Abstand der Ansaugöffnung mit r1 und den der Ausströmöffnung mit r2, dann stellt sich bei einem um die genannte lotrechte Achse rotierenden Winkelrohr gemäß der Erfindung an den genannten öffnungen ein Differenzdruck ein nach der Beziehung

Figure imgb0001
What is essential for this new system is the difference between the radial distances between the intake opening and the outflow opening from the central axis of rotation. If one designates the radial distance of the intake opening with r1 and that of the outflow opening with r2, then in the case of an angled tube rotating about the vertical axis according to the invention, a differential pressure is established at the openings mentioned according to the relationship
Figure imgb0001

Demnach arbeitet das neue System für die Teilstromrückführung strömungstechnisch nach dem Prinzip einer Kreiselpumpe. Dabei ist die zu fördernde bzw. umzuwälzende Menge über die Drehzahl der lotrechten Antriebswelle bzw. über die Veränderung des Ansaugquerschnitts in besonders einfacher Weise einzustellen. Es ist daher gemäß der Erfindung vorteilhaft, wenn die Ansaugöffnung ein ihren Ansaugquerschnitt veränderndes Regelorgan aufweist.According to this, the new system for partial flow recirculation works according to the principle of a centrifugal pump. The quantity to be conveyed or circulated can be adjusted in a particularly simple manner via the speed of the vertical drive shaft or via the change in the intake cross section. It is therefore advantageous according to the invention if the intake opening has a regulating member which changes its intake cross section.

i Im Rahmen der Erfindung ist es nicht wesentlich, daß der lotrecht und zentrisch durch den Behälter geführte Antrieb für das Rohrsystem durch eine Welle gebildet wird. Es wäre z.B. möglich, die Welle durch eine einen hohlen Innenraum aufweisende Gitterkonstruktion zu ersetzen, in die sich die einzelnen Winkelrohre besonders einfach einhängen ließen. Wesentlich ist allein, daß alle Winkelrohre mit einem zentralen Antrieb drehfest verbunden sind.i In the context of the invention, it is not essential that the drive for the pipe system, which is guided perpendicularly and centrally through the container, is formed by a shaft. It would be e.g. It is possible to replace the shaft with a lattice structure with a hollow interior, into which the individual angle tubes can be particularly easily attached. The only essential thing is that all angle tubes are connected in a rotationally fixed manner to a central drive.

Ferner ist es im Rahmen der Erfindung nicht wesentlich, daß die das Rohrsystem bildenden Rohre jeweils exakt winkelförmig ausgebildet sind. Entscheidend ist vielmehr, daß die Ausströmöffnung einen größeren radialen Abstand von der Rotationsachse aufweist als die Ansaugöffnung, und daß jedes Rohr um eine lotrechte Achse rotiert.Furthermore, it is not essential in the context of the invention that the tubes forming the tube system are each formed in an exactly angular manner. Rather, it is crucial that the outflow opening has a greater radial distance from the axis of rotation than the suction opening, and that each tube rotates about a vertical axis.

Es ist ferner grundsätzlich gleichgültig, ob der Rohsaft den Behälter von oben nach unten oder in umgekehrter Richtung durchströmt.It is also basically irrelevant whether the raw juice flows through the container from top to bottom or in the opposite direction.

Bei der erfindungsgemäßen Konstruktion lassen sich die Verstellmechanismen für die den Ansaugquerschnitt verändernden Regelorgane in besonders einfacher Weise anordnen. So läßt sich beispielsweise ein Gestänge von unten durch den hohl ausgebildeten zentralen Antrieb nach oben zu den einzelnen Regelorganen führen. Die eigentlichen Verstelleinrichtungen für das Gestänge können dann auf dem den Behälter aufnehmenden Fundament angeordnet werden. Es ist jedoch auch möglich, unmittelbar im Bereich jedes Regelorganes an dem Rohr selbst oder aber an dem zentralen Antrieb einen pneumatisch oder hydraulisch zu betätigenden, wartungsfreien Verstellzylinder anzuordnen.In the construction according to the invention, the adjustment mechanisms for the regulating members changing the intake cross section can be arranged in a particularly simple manner. For example, a linkage can be guided upwards from below through the hollow central drive to the individual control elements. The actual adjustment devices for the linkage can then be arranged on the foundation receiving the container. However, it is also possible to arrange a pneumatically or hydraulically actuated, maintenance-free adjusting cylinder directly in the area of each control element on the tube itself or on the central drive.

Bei der erfindungsgemäßen Konstruktion fördert jedes um die lotrechte Drehachse rotierendes Winkelrohr einen exakt einstellbaren Teilstrom von einer oben liegenden Kammer in eine darunter liegende Kammer, wenn der Rohsaft den Behälter von unten nach oben durchströmt. Bei umgekehrter Strömrichtung liegt die Ansaugöffnung jedes Winkelrohres in der jeweils unteren und die Ausströmöffnung in der jeweils oberen Kammer. Durch die Teilstromrückführung ergibt sich die stufenweise Erhöhung des pH-Wertes.In the construction according to the invention, each angled tube rotating about the vertical axis of rotation conveys an exactly adjustable partial flow from an overhead chamber into an underlying chamber when the raw juice flows through the container from bottom to top. When the flow direction is reversed, the suction opening of each angled tube lies in the lower chamber and the outflow opening in the upper chamber. The stages result from the partial flow feedback wise increase in pH.

Die Zwischenböden können leicht konisch ausgebildet sein, um so etwaige Ablagerungen leichter abführen zu können. Dieser Vorgang kann noch dadurch unterstützt werden, daß der angenähert horizontal verlaufende Schenkel jedes Rohres dicht über dem ihm zugeordneten Zwischenboden angeordnet ist. Ferner kann es zweckmäßig sein, die in den Zwischenböden vorgesehenen Durchlaßöffnungen abwechselnd nur am Umfang bzw. nur im Zentrum der Zwischenböden anzuordnen. Dadurch wird dem den Behälter durchströmenden Rohsaft ein zickzackförmiger Durchlauf aufgezwungen. Bei einer derartigen Ausführungsform können je nach Anordnung der Durchlaßöffnungen die Zwischenböden nach oben oder unten konisch ausgebildet sein.The intermediate floors can be slightly conical, so that any deposits can be removed more easily. This process can be supported by the fact that the approximately horizontally extending leg of each tube is arranged closely above the intermediate floor assigned to it. Furthermore, it may be expedient to arrange the passage openings provided in the intermediate floors alternately only on the circumference or only in the center of the intermediate floors. As a result, the raw juice flowing through the container is forced through a zigzag pass. In such an embodiment, depending on the arrangement of the passage openings, the intermediate floors can be conical upwards or downwards.

In der Zeichnung sind zwei als Beispiele dienende Ausführungs- formen der Erfindung dargestellt. Es zeigen:

  • Figur 1 in schematischer Darstellung einen Vertikalschnitt durch eine Einrichtung zur Vorkalkung und
  • Figur 2 in vergrößertem Maßstab einen Ausschnitt gemäß der Linie II - II in Figur 1 einer etwas abgewandelten Ausführungsform.
In the drawing, two serving as examples of A are usführungs- form of the invention shown. Show it:
  • Figure 1 is a schematic representation of a vertical section through a device for pre-liming and
  • Figure 2 on an enlarged scale a section along the line II - II in Figure 1 of a slightly modified embodiment.

Gemäß Figur 1 besteht die dargestellte Einrichtung aus einem stehenden zylindrischen Behälter 1, der einen sich nach unten konisch verjüngenden Boden 2 aufweist, an dem ein Einlauf 3 für Rohsaft angeordnet ist. Direkt unterhalb des Behälterdeckels 4 befindet sich ein Ablauf 5 für den behandelten Rohsaft; der Saftaustritt erfolgt durch freien Oberfluß. Ebenfalls direkt unterhalb des Behälterdeckels 4 ist ein Zulauf 6 für Kalkmilch vorgesehen.According to FIG. 1, the device shown consists of a standing cylindrical container 1 which has a bottom 2 which tapers conically downwards and on which an inlet 3 for raw juice is arranged. There is an outlet 5 for the treated raw juice directly below the container lid 4; the juice is released through free overflow. An inlet 6 for milk of lime is also provided directly below the container lid 4.

Der Behälter 1 ist durch Zwischenböden 7 in acht übereinanderliegende Kammern 8 unterteilt. Alle Zwischenböden 7 sind nach oben leicht konisch ausgebildet und weisen lediglich an ihrem Umfang Durchlaßöffnungen 9 auf, über die die einzelnen Kammern 8 untereinander in flüssigkeitsaustauschender Verbindung stehen.The container 1 is divided by intermediate floors 7 into eight superimposed chambers 8. All intermediate floors 7 are slightly conical upwards and only have through openings 9 on their circumference, through which the individual chambers 8 are in fluid-exchanging connection with one another.

Durch den Behälter 1 ist lotrecht zentrisch eine Welle 10 geführt, die über einen nicht dargestellten Antrieb angetrieben wird und mit der Winkelgeschwindigkeit ω umläuft. Mit der Welle 10 drehfest verbunden ist ein Rohrsystem, das aus mehreren, angenähert winkelförmigen Rohren 11 besteht. Jedes Rohr 11 verbindet zwei Kammern 8 miteinander und mündet mit seinem oberen, eine Ansaugöffnung 12 aufweisenden Ende eines angenähert lotrecht verlaufenden Rohrschenkels 11a in die jeweils obere der beiden Kammern und mit dem eine Ausströmöffnung 13 aufweisenden Ende seines angenähert horizontal verlaufenden Rohrschenkels 11b in die jeweils untere der beiden Kammern.A shaft 10 is guided centrally through the container 1 and is driven by a drive (not shown) and rotates at the angular velocity ω. With the shaft 10 rotatably connected, a pipe system that consists of several, approximately angular tubes 11. Each pipe 11 connects two chambers 8 to one another and opens with its upper end, which has a suction opening 12, of an approximately perpendicular pipe leg 11a into the respective upper of the two chambers and with the end having an outflow opening 13 of its approximately horizontal pipe leg 11b into the lower one of the two chambers.

Figur 2 zeigt die Anordnung und Ausbildung eines Rohres 11 in vergrößertem Maßstab. In dieser Darstellung sind die Zwischenböden 7 nicht konisch, sondern exakt horizontal ausgerichtet. In den Zwischenböden 7 sind abwechselnd nur am Umfang Durchlaßöffnungen 9 bzw. nur im Zentrum Durchlaßöffnungen 14 angeordnet.Figure 2 shows the arrangement and design of a tube 11 on an enlarged scale. In this illustration, the intermediate floors 7 are not conical, but aligned exactly horizontally. In the intermediate floors 7, passage openings 9 are arranged alternately only on the circumference or only in the center of passage openings 14.

Figur 2 läßt ferner erkennen, daß die Ansaugöffnung 12 jedes Rohres 11 ein ihren Ansaugquerschnitt veränderndes Regelorgan 15 aufweist. Ferner ist erkennbar, daß der horizontal verlaufende Schenkel 11b jedes Rohres 11 dicht über dem ihm zugeordneten Zwischenboden 7 angeordnet ist.FIG. 2 also shows that the suction opening 12 of each tube 11 has a control element 15 which changes its suction cross section. It can also be seen that the horizontally extending leg 11b of each tube 11 is arranged closely above the intermediate floor 7 assigned to it.

In Figur 1 zeigt die gestrichelte und mit Pfeilen versehene Linie 16 den Strömungsweg des Rohsaftes von unten durch den Behälter 1 hindurch nach oben. Die übrigen Pfeile zeigen die Ansaug- bzw. Ausströmrichtung jeder Teilstromrückführung.In FIG. 1, the dashed and arrowed line 16 shows the flow path of the raw juice from below through the container 1 upwards. The other arrows show the suction and outflow direction of each partial flow return.

In Figur 2 deuten die Pfeile 17 den zickzackförmigen Durchlaufweg des Rohsaftes durch den Behälter 1 an. Die Pfeile 18, 19 und 20 symbolisieren die Teilstromrückführung.In FIG. 2, the arrows 17 indicate the zigzag-shaped passage of the raw juice through the container 1. The arrows 18, 19 and 20 symbolize the partial flow return.

Claims (5)

Einrichtung zur Vorkalkung des bei der Rübenverarbeitung in der Extraktion gewonnenen Rohsaftes, bestehend aus einem stehenden zylindrischen Behälter, der an seinem einen Ende einen Einlauf für den Rohsaft und an seinem anderen Ende einen Ablauf für den behandelten Rohsaft sowie einen Zulauf für Kalkmilch aufweist und durch angenähert horizontal angeordnete Zwischenböden in übereinanderliegende Kammern unterteilt ist, die über in den Zwischenböden vorgesehene Durchlaßöffnungen untereinander in flüssigkeitsaustauschender Verbindung stehen und von Rührelementen beaufschlagt werden, die an einer angetriebenen, lotrecht und zentrisch durch den Behälter geführ- ben Welle befestigt sind, in angenähert horizontalen Ebenen umlaufen und durch eine Teilstromrückführung von Eohsaft entgegen der Durchströmrichtung des Rohsaftes vom Einlauf zum Ablauf eine Vermischung des Rohsaftes der einen Kammer mit dem Rohsaft der benachbarten Kammer bewirken, dadurch gekennzeichnet , daß die Rührelemente für die Teilstromrückführung durch ein Rohrsystem gebildet sind, das aus mehreren, angenähert winkelförmig ausgebildeten und jeweils zwei Kammern (8) miteinander verbindenden Rohren (11) besteht, von denen jedes Rohr mit seinem oberen, eine Ansaugöffnung (12) aufweisenden Ende eines angenähert lotrecht verlaufenden Rohrschenkels (11a) in die jeweils obere der beiden Kammern und mit dem eine Ausströmöffnung (13) aufweisenden Ende seines angenähert horizontal verlaufenden Rohrschenkels (11b) in die jeweils untere der beiden Kammern mündet, wenn an dem Behälter (1) der Rohsaft-Einlauf (3) unten und der -Ablauf (5) oben liegen.Device for pre-liming the raw juice obtained during the beet processing in the extraction, consisting of a standing cylindrical container which has an inlet for the raw juice at one end and an outlet for the treated raw juice and an inlet for lime milk at its other end and approximated by horizontally arranged intermediate floors is subdivided into superimposed chambers which are in fluid-exchanging connection with one another via passage openings provided in the intermediate floors and are acted upon by stirring elements which are fastened to a driven shaft which is guided vertically and centrally through the container and rotate in approximately horizontal planes and by a partial flow return of organic juice counter to the flow direction of the raw juice from the inlet to the outlet, a mixing of the raw juice of one chamber with the raw juice of the adjacent chamber, characterized in that the stirring elements for d The partial flow return is formed by a pipe system that consists of several, approximately angularly shaped and two chambers (8) interconnecting pipes (11), of which each pipe with its upper end, which has a suction opening (12), has an approximately perpendicular pipe leg (11a) into the respective upper of the two chambers and with the end of which has an outflow opening (13) horizontally extending pipe leg (11b) opens into the lower of the two chambers when the raw juice inlet (3) at the bottom and the drain (5) at the top of the container (1). 2. Einrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Ansaugöffnung (12) ein ihren Ansaugquerschnitt veränderndes Regelorgan (15) aufweist.2. Device according to claim 1, characterized in that the suction opening (12) has a regulating member (15) which changes its suction cross section. 3. Einrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Zwischenböden (7) leicht konisch ausgebildet sind.3. Device according to claim 1 or 2, characterized in that the intermediate floors (7) are slightly conical. 4. Einrichtung nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, daß der angenähert horizontal verlaufende Schenkel (11b) jedes Rohres (11) dicht über dem ihm zugeordneten Zwischenboden (7) angeordnet ist.4. Device according to claim 1, 2 or 3, characterized in that the approximately horizontally extending leg (11b) of each tube (11) is arranged closely above the intermediate floor (7) assigned to it. 5. Einrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die in den Zwischenböden (7) vorgesehenen Durchlaßöffnungen (9,14) abwechselnd nur am Umfang bzw. nur im Zentrum der Zwischenböden angeordnet sind.5. Device according to one of the preceding claims, characterized in that the passage openings (9, 14) provided in the intermediate floors (7) are arranged alternately only on the circumference or only in the center of the intermediate floors.
EP79101919A 1978-07-29 1979-06-13 Apparatus for preliming raw sugar juice Withdrawn EP0007419A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2833348A DE2833348C2 (en) 1978-07-29 1978-07-29 Device for calcification of the raw sugar juice
DE2833348 1978-07-29

Publications (1)

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EP0007419A1 true EP0007419A1 (en) 1980-02-06

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EP79101919A Withdrawn EP0007419A1 (en) 1978-07-29 1979-06-13 Apparatus for preliming raw sugar juice

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EP (1) EP0007419A1 (en)
BE (1) BE76T1 (en)
DE (1) DE2833348C2 (en)
FR (1) FR2453900A1 (en)
GB (1) GB2049724B (en)
IT (1) IT1148222B (en)
NL (1) NL178171C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3900587C1 (en) * 1989-01-11 1990-05-10 H. Putsch Gmbh & Co, 5800 Hagen, De Apparatus for preliming raw sugar juice
USD382876S (en) 1996-03-01 1997-08-26 John Manufacturing Limited Combination radio lantern, and clock

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1230397B (en) * 1964-12-18 1966-12-15 Hans Kotthoff Dispersing device
FR2123566A5 (en) * 1970-10-06 1972-09-15 Fives Lille Cail Sugar juice limer - with vertical cylindrical vessel and countercurrent flow of limewater and juice

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1230397B (en) * 1964-12-18 1966-12-15 Hans Kotthoff Dispersing device
FR2123566A5 (en) * 1970-10-06 1972-09-15 Fives Lille Cail Sugar juice limer - with vertical cylindrical vessel and countercurrent flow of limewater and juice

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
F. SCHNEIDER: "Technologie des Zuckers", zweite Auflage 1968, Verlag M. & H. SCHAPER, Hannover (DE) Seiten 271-272. *

Also Published As

Publication number Publication date
FR2453900B1 (en) 1981-10-16
IT8086265A0 (en) 1980-08-12
NL7915048A (en) 1980-08-29
BE76T1 (en) 1980-06-20
IT1148222B (en) 1986-11-26
GB2049724B (en) 1982-10-20
FR2453900A1 (en) 1980-11-07
DE2833348B1 (en) 1979-11-29
NL178171C (en) 1986-02-03
DE2833348C2 (en) 1980-09-04
NL178171B (en) 1985-09-02
GB2049724A (en) 1980-12-31

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