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EP1567275B1 - Dissolving station - Google Patents

Dissolving station Download PDF

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Publication number
EP1567275B1
EP1567275B1 EP03788824A EP03788824A EP1567275B1 EP 1567275 B1 EP1567275 B1 EP 1567275B1 EP 03788824 A EP03788824 A EP 03788824A EP 03788824 A EP03788824 A EP 03788824A EP 1567275 B1 EP1567275 B1 EP 1567275B1
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EP
European Patent Office
Prior art keywords
trough
insert
station according
dissolving station
shaft
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 - Lifetime
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EP03788824A
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German (de)
French (fr)
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EP1567275A1 (en
Inventor
Heinrich Müller
Werner Ries
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Mueller & Co Aufbereitungstechnik AG
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Mueller & Co Aufbereitungstechnik AG
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Publication of EP1567275A1 publication Critical patent/EP1567275A1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03BSEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B5/00Washing granular, powdered or lumpy materials; Wet separating
    • B03B5/02Washing granular, powdered or lumpy materials; Wet separating using shaken, pulsated or stirred beds as the principal means of separation

Definitions

  • the invention relates to a dissolving plant for granular material, in particular for soft-bodied components such as clay and / or clay-laden minerals, nodular mineral conglomerates o. ⁇ .
  • the plant has a trough with an inlet and an outlet for the good, between inlet and Outlet is conveyed through the trough.
  • a driven in rotation, equipped with wedge tools shaft is arranged in the longitudinal axis of the trough.
  • washing machine for the removal of impurities such as clay, clay, Lithuanians, soil known to adhere to lumpy mineral Abraummaterialien.
  • the washing machine has a trough and arranged therein, equipped with washing tools shaft. The trough is retracted above the shaft.
  • the washing tools have off-shaft blade portions that are radially directed toward the drawing. The laundry to come into contact with these areas should roll inward along it. The estate should be swirled. All this speaks against a wedging effect of tools with pressure build-up on the goods by wedging action.
  • the shape of the trough is basically not critical either, as the trough hogs during operation. That is, at the trough wall, a tank forms adhering Guts extending in the circumferential direction of the shaft and between the and the wedging tools remains a working gap.
  • the Beschamottieren the trough is desirable because it counteracts the wear.
  • the trough has a semi-cylindrical bottom and vertical side walls.
  • the shaft lies in the cylinder longitudinal axis.
  • bottom and walls of a trough of the dissolving plant according to the invention can be prefabricated accordingly, but this is not mandatory. Even with other trough shapes, it can be assumed that by means of shuffling, this shell inner contour of the trough usually sets.
  • the object of the invention is to provide a dissolving system of the type mentioned with improved dissolution effect.
  • the tray is narrowed at the tool ascending side above the central axis of the shaft away from the perpendicular by an insert therein upwardly and inwardly.
  • the circumferential part is extended, is built on the pressure in the upward movement of the wedging tools on the estate.
  • the trough narrowing the insert can be rigid.
  • An advantage of this variant is that the insert easily hoggles. But there is a risk of damage in a transition to coarser grain or the unexpected accumulation of coarse-grained impurities in the estate.
  • the trough narrowing insert is movable.
  • the insert can be articulated in particular to the trough.
  • the insert is resiliently buffered on the trough. This prevents that to be treated good between trough and use sets and affects the mobility of the insert.
  • the insert is spring-loaded against the trough.
  • spring is a helical compression spring made of spring steel into consideration. Has proven also a gas spring, which should preferably be adjustable in their spring characteristic.
  • the insert has an active surface which is curved in the circumferential direction of the shaft or extends tangentially or polygonal thereto.
  • the active surface runs in the direction of rotation of the shaft to the wedging tools, so that narrows the wedge gap. This is particularly recommended on the last degrees of centrifuge lengthened by the insert, over which an upward movement of wedging tools with strong wedging action occurs.
  • the active surface of the insert is structured in the manner to be treated holding manner. This promotes the shuffling of the insert and counteracts the wear.
  • the active surface may in particular be provided with parallel grooves which extend in the longitudinal direction of the shaft. Preferably, the grooves have a U-profile.
  • the insert is provided with at least one of the active surface reinforcing insert made of ceramic or hard metal.
  • the trough is provided at the constriction with identical or identical wear sets. Latter are for the introduction of force in the direction of rotation front positively supported on the trough or use.
  • a shaft 14 is arranged, which is equipped with wedge tools 16. Regarding their attachment and design can on the EP 0 712 665 A1 and DE 202 18 917.1 U1 to get expelled.
  • the dissolver systems serve to rid granular mineral material from adhering soft components. To do this, the systems usually run wet. The trough is flowed through in countercurrent with the material to be treated by water. However, the use of water for washing the Guts is not mandatory for the invention. There are special cases in which dissolution plants run better dry.
  • the trough is provided with inserts. That creates flexibility. You can work with or without use as needed.
  • the trough of the dissolver plants in operation to a thickness thick, which is indicated by the line 18. It forms on the ground and over large parts of the trough circumference a tank of material to be treated, which adheres to the trough. The mixing is desired. It counteracts the wear.
  • the invention aims to lengthen the scaling portion of the trough to be scoured in the upward direction of rotation of the wedging tools 16 seated on the shaft 14 to thereby enhance the dissolving action.
  • internals are suitable, which take the place of the non-forming from home tank, or zuschamott in part or completely in the desired manner.
  • a wedge-shaped insert 20 is rigidly attached to the vertical side wall 12 of the trough, at which the upward rotation of the shaft 14 with the wedging tools 16 takes place.
  • the base 22 of the wedge is located at the height of the shaft axis.
  • the flat inclined surface (active surface) 26 of the wedge narrows the gap between the trough wall 12 and shaft 14 above the shaft axis. The wedge fires over approximately half the length of the active surface 26, in the thickness of the tank, which forms in the bottom region of the trough.
  • Fig. 2 is in an equally rigidly mounted wedge its active surface 26 curved in extension of the trough bottom.
  • the active surface 26 chamfers over the full length, without the need for a special structuring.
  • Fig. 3 is a wedge-shaped insert 20 similar to that of Fig. 1 designed as a housing with open to the shaft chambers 28.
  • the planar partitions 30 between the chambers 28 are directed substantially radially to the shaft 14.
  • an insert 20 is pivotally mounted on the trough wall 12 at the level of the central axis of the shaft.
  • the pivot axis 32 is directed parallel to the shaft 14.
  • the surface of the insert 20 according to Fig. 4 is simply stepped polygonal, so that two flat inclined surfaces (active surfaces) 26 are formed with a substantially tangential inclination to the shaft 14.
  • an elastic pad 34 made of rubber or a rubber-like material is arranged between the insert 20 and the wall 12 of the trough.
  • the pad 34 serves for elastic buffering. It prevents that the material to be treated settles between the insert and the trough wall and impairs the joint mobility of the insert.
  • a hinged insert 20 is buffered against the trough wall 12 in addition to the resilient pad 34 with a helical compression spring mounted above it.
  • the active surface 26 of the insert 20 is curved coaxially with the shaft 14 in the circumferential direction. It has at the height of the shaft axis a distance from the trough wall 12, which corresponds approximately to the thickness of the tank, which forms below the insert 20 by Beschamott Schl.
  • U-shaped grooves 38 are provided, which enforce in operation with good.
  • Fig. 6 are in a use 20, the design of the rest of the Fig. 5 corresponds, provided in the grooves 38 inserts 40 made of ceramic or hard metal, which completely fill the grooves 38.
  • the insert 20 double polygonal stepped so that three flat inclined surfaces (active surfaces) 26 with a substantially tangential inclination to the shaft 14th be formed.
  • the inserts 20 are hinged below the shaft axis on the trough wall 12 and buffered with an elastic pad 34 and a gas spring 42 mounted above it against the trough wall 12.
  • the gas spring 42 is adjustable in its spring characteristic.
  • the oblique active surfaces 26 of the insert 20 are formed by three identical Schllustrate arrangementsn 44, which are provided with grooves 38.
  • the wear sets 44 are positively supported in the direction of rotation at the front of lugs 46 of the insert 20.

Landscapes

  • Mixers Of The Rotary Stirring Type (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Working-Up Tar And Pitch (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Pretreatment Of Seeds And Plants (AREA)

Abstract

Disclosed is a dissolving station comprising a trough which is provided with an inlet and an outlet for granular material that is to be purified. A rotatably driven shaft (14) comprising wedging tools (16) thereupon is disposed along the longitudinal axis of the trough. The material is conveyed through the trough between the inlet and the outlet. The side of the trough, on which the tools rise, narrows towards the top and the interior away from the vertical above the central axis of the shaft (14), whereby the section of the circumference, via which pressure is applied to the material during the upward movement of the tools (16), is extended.

Description

Die Erfindung betrifft eine Auflöseanlage für körniges Gut, insbesondere für mit Weichbestandteilen wie beispielsweise Lehm und/oder Ton behaftete Mineralien, knollige mineralische Konglomerate o. ä. Die Anlage hat einen Trog mit einem Einlaß und mit einem Auslaß für das Gut, das zwischen Einlaß und Auslaß durch den Trog hindurchgefördert wird. In der Längsachse des Trogs ist eine in Drehung angetriebene, mit einkeilenden Werkzeugen bestückte Welle angeordnet.The invention relates to a dissolving plant for granular material, in particular for soft-bodied components such as clay and / or clay-laden minerals, nodular mineral conglomerates o. Ä. The plant has a trough with an inlet and an outlet for the good, between inlet and Outlet is conveyed through the trough. In the longitudinal axis of the trough a driven in rotation, equipped with wedge tools shaft is arranged.

Aus der DE 43 41 778 C1 ist eine Waschmaschine zur Entfernung von Verunreinigungen wie Ton, Lehm, Letten, Erde bekannt, die an stückigen mineralischen Abraummaterialien haften. Die Waschmaschine hat einen Trog und eine darin angeordnete, mit Waschwerkzeugen bestückte Welle. Der Trog ist oberhalb der Welle eingezogen. Die Waschwerkzeuge haben wellenferne Schaufelbereiche, die der Zeichnung nach radial gerichtet sind. Das mit diesen Bereichen in Berührung kommende Waschgut soll daran entlang nach innen rollen. Das Gut soll verwirbelt werden. All das spricht gegen eine einkeilende Wirkung der Werkzeuge mit Druckaufbau auf das Gut durch Keilwirkung.From the DE 43 41 778 C1 is a washing machine for the removal of impurities such as clay, clay, Latvians, soil known to adhere to lumpy mineral Abraummaterialien. The washing machine has a trough and arranged therein, equipped with washing tools shaft. The trough is retracted above the shaft. The washing tools have off-shaft blade portions that are radially directed toward the drawing. The laundry to come into contact with these areas should roll inward along it. The estate should be swirled. All this speaks against a wedging effect of tools with pressure build-up on the goods by wedging action.

Aus der EP 0 712 665 A1 ist eine Waschanlage für mit abschlämmbaren Bestandteilen behafteten Kies bekannt. Die Anlage hat Waschwerkzeuge, die mit dem Trogumfang einen Keilwinkel einschließen, um einen starken Einkeileffekt auf das Gut zu bewirken. Dadurch ergibt sich ein hoher Druckaufbau und eine starke Quetsch-, Zerreibe- und Auflösewirkung auf das zu behandelnde Gut.From the EP 0 712 665 A1 is known a washing plant for sludge-prone pebbles. The system has wash tools that include a wedge angle with the trough circumference to provide a strong wedge effect on the product. This results in a high Pressure build-up and a strong squeezing, rubbing and dissolving effect on the material to be treated.

Zu der Form des Trogs finden sich in der EP 0 712 665 A1 keine näheren Angaben. Die Form des Trogs ist grundsätzlich auch nicht kritisch, da sich der Trog im Betrieb zuschamottiert. Das heißt, daß sich an der Trogwand ein Panzer daran festhaftenden Guts bildet, der sich in Umfangsrichtung der Welle erstreckt und zwischen dem und den einkeilenden Werkzeugen ein Arbeitsspalt verbleibt. Das Zuschamottieren des Trogs ist erwünscht, da dadurch dem Verschleiß entgegengewirkt wird.To the form of the trough can be found in the EP 0 712 665 A1 no details. The shape of the trough is basically not critical either, as the trough hogs during operation. That is, at the trough wall, a tank forms adhering Guts extending in the circumferential direction of the shaft and between the and the wedging tools remains a working gap. The Beschamottieren the trough is desirable because it counteracts the wear.

Die typische Form eines nach oben offenen Trogs mit einer Welle darin kann der DE 24 54 443 A1 oder GB 2 081 117 A entnommen werden. Der Trog hat einen halbzylindrischen Boden und vertikale Seitenwände. Die Welle liegt in der Zylinderlängsachse.The typical form of an upwardly open trough with a shaft therein, the DE 24 54 443 A1 or GB 2 081 117 A be removed. The trough has a semi-cylindrical bottom and vertical side walls. The shaft lies in the cylinder longitudinal axis.

Boden und Wände eines Trogs der erfindungsgemäßen Auflöseanlage können entsprechend vorgefertigt sein, doch ist das nicht zwingend. Auch bei anderen Trogformen kann man davon ausgehen, daß sich durch Zuschamottieren zumeist eben diese Mantelinnenkontur des Trogs einstellt.The bottom and walls of a trough of the dissolving plant according to the invention can be prefabricated accordingly, but this is not mandatory. Even with other trough shapes, it can be assumed that by means of shuffling, this shell inner contour of the trough usually sets.

Für eine effektive Auflösung ist es nicht sinnvoll, den Trog über die Höhe der Welle hinaus zu füllen. Oberhalb der Welle befindliches Gut wird im wesentlichen nur umgeschaufelt. Ein nennenswerter Druckaufbau findet nicht statt, da der Trog oben offen ist und hier nicht zuschamottieren kann.For effective resolution, it does not make sense to fill the trough beyond the height of the shaft. Above the shaft befindliches Good is essentially only shoveled. A significant pressure build-up does not take place because the trough is open at the top and can not hog it.

Auch in der Abwärtsbewegung der einkeilenden Werkzeuge ist der Druckaufbau auf das zu behandelnde Gut nicht erheblich. Das Gut vollführt im wesentlichen eine von der Schwerkraft unterstützte Fallbewegung. Der für die Effektivität der Auflösung entscheidende Druckaufbau findet während der Aufwärtsbewegung der einkeilenden Werkzeuge statt.Even in the downward movement of the wedging tools the pressure build-up on the material to be treated is not significant. The estate performs essentially a gravity-assisted fall movement. The pressure build-up crucial to the effectiveness of the dissolution occurs during the upward movement of the wedging tools.

Aufgabe der Erfindung ist es, eine Auflöseanlage der eingangs genannten Art mit verbesserter Auflösewirkung zu schaffen.The object of the invention is to provide a dissolving system of the type mentioned with improved dissolution effect.

Bei der diese Aufgabe lösenden Auflöseanlage ist der Trog an der werkzeugaufsteigenden Seite oberhalb der Zentralachse der Welle weg von der Lotrechten durch einen Einsatz darin nach oben und innen hin verengt. Dadurch ist die Umfangspartie verlängert, über die in der Aufwärtsbewegung der einkeilenden Werkzeuge Druck auf das Gut aufgebaut wird.In the dissolving apparatus solving this problem, the tray is narrowed at the tool ascending side above the central axis of the shaft away from the perpendicular by an insert therein upwardly and inwardly. As a result, the circumferential part is extended, is built on the pressure in the upward movement of the wedging tools on the estate.

Zwischen der Verengung des Trogs und den Werkzeugen findet eine Keilwirkung statt, und zwar entweder direkt, oder zwischen den Werkzeugen und einem Panzer, mit dem die Verengung zuschamottiert.Between the narrowing of the trough and the tools, a wedging action takes place, either directly, or between the tools and a shell with which the constriction hogs.

Während bei herkömmlichen Trögen der Zentriwinkel, über den eine Aufwärtsbewegung der einkeilenden Werkzeuge mit starker Keilwirkung stattfindet, größenordnungsmäßig 90° beträgt, kann durch die erfindungsgemäße Verengung dieser Zentriwinkel um bis zu 35° über die Horizontale verlängert werden. Damit geht eine beträchtliche Verbesserung der Auflösewirkung einher.While in conventional troughs the central angle, over which an upward movement of the wedging tools with a strong wedge effect takes place, is on the order of 90 °, can be extended by the inventive narrowing of these central angles by up to 35 ° above the horizontal. This is accompanied by a considerable improvement in the dissolution effect.

Der den Trog verengende Einsatz kann starr sein. Ein Vorteil dieser Variante ist, daß der Einsatz leicht zuschamottiert. Es besteht aber die Gefahr von Beschädigung bei einem Übergang zu gröberer Körnung oder dem unerwarteten Anfall grobkörniger Verunreinigungen in dem Gut.The trough narrowing the insert can be rigid. An advantage of this variant is that the insert easily hoggles. But there is a risk of damage in a transition to coarser grain or the unexpected accumulation of coarse-grained impurities in the estate.

Bei einer bevorzugten Ausführungsform ist daher der den Trog verengende Einsatz beweglich. Der Einsatz kann insbesondere an dem Trog angelenkt sein.In a preferred embodiment, therefore, the trough narrowing insert is movable. The insert can be articulated in particular to the trough.

Bei einer bevorzugten Ausführungsform ist der Einsatz an dem Trog elastisch abgepuffert. Dadurch wird verhindert, daß sich zu behandelndes Gut zwischen Trog und Einsatz setzt und die Beweglichkeit des Einsatzes beeinträchtigt.In a preferred embodiment, the insert is resiliently buffered on the trough. This prevents that to be treated good between trough and use sets and affects the mobility of the insert.

Bei einer bevorzugten Ausführungsform ist der Einsatz gegen den Trog angefedert. Als Feder kommt eine Schraubendruckfeder aus Federstahl in Betracht. Bewährt hat sich auch eine Gasfeder, die in ihrer Federcharakteristik vorzugsweise verstellbar sein sollte.In a preferred embodiment, the insert is spring-loaded against the trough. As spring is a helical compression spring made of spring steel into consideration. Has proven also a gas spring, which should preferably be adjustable in their spring characteristic.

Für gelenkig angebrachte, verstellbare Einsätze gibt es einen umfangreichen Stand der Technik bei Prallmühlen (vgl. DE 23 00 715 A1 , DE 30 18 056 A1 , DE 40 37 036 A1 , FR 26 72 515 A1 , US 40 17 035 A , US 41 40 284 A , US 45 06 837 A und andere mehr). Die Einsätze stellen nichts anderes als Prallflächen dar. Prallmühlen haben eine Welle, die mit Schlagwerkzeugen bestückt ist. Der Förderweg des zu zerkleinernden Guts ist von oben nach unten quer zu der Welle gerichtet. Bei der erfindungsgemäßen Vorrichtung wird hingegen zu behandelndes Gut in Längsrichtung einer mit einkeilenden Werkzeugen bestückten Welle transportiert. Die erfindungsgemäß vorgesehenen Einsätze dienen zum Druckaufbau auf das Gut durch Keilwirkung. Dafür ist der Stand der Technik der Prallmühlen nicht einschlägig.For articulated, adjustable inserts there is an extensive state of the art in impact mills (cf. DE 23 00 715 A1 . DE 30 18 056 A1 . DE 40 37 036 A1 . FR 26 72 515 A1 . US 40 17 035 A . US 41 40 284 A . US 45 06 837 A and others more). The inserts are nothing more than baffles. Impact mills have a shaft that is equipped with striking tools. The conveying path of the material to be comminuted is directed from top to bottom transversely to the shaft. In the apparatus according to the invention, however, to be treated good is transported in the longitudinal direction of a fitted with wedge tools shaft. The inventively provided inserts are used to build up pressure on the good by wedging action. For the state of the art of impact mills is not relevant.

Bei einer bevorzugten Ausführungsform hat der Einsatz eine Wirkfläche, die in Umfangsrichtung der Welle gekrümmt ist oder sich tangential oder polygonal dazu erstreckt.In a preferred embodiment, the insert has an active surface which is curved in the circumferential direction of the shaft or extends tangentially or polygonal thereto.

Bei einer bevorzugten Ausführungsform läuft die Wirkfläche in Drehrichtung der Welle auf die einkeilenden Werkzeuge zu, so daß sich der Keilspalt verengt. Das empfiehlt sich besonders auf den letzten Graden des durch den Einsatz verlängerten Zentriwinkels, über den eine Aufwärtsbewegung der einkeilenden Werkzeuge mit starker Keilwirkung stattfindet.In a preferred embodiment, the active surface runs in the direction of rotation of the shaft to the wedging tools, so that narrows the wedge gap. This is particularly recommended on the last degrees of centrifuge lengthened by the insert, over which an upward movement of wedging tools with strong wedging action occurs.

Bei einer bevorzugten Ausführungsform ist die Wirkfläche des Einsatzes in das zu behandelnde Gut festhaltender Weise strukturiert. Dadurch wird das Zuschamottieren des Einsatzes gefördert und dem Verschleiß entgegengewirkt. Die Wirkfläche kann insbesondere mit parallelen Nuten versehen sein, die sich in Längsrichtung der Welle erstrecken. Vorzugsweise haben die Nuten ein U-Profil.In a preferred embodiment, the active surface of the insert is structured in the manner to be treated holding manner. This promotes the shuffling of the insert and counteracts the wear. The active surface may in particular be provided with parallel grooves which extend in the longitudinal direction of the shaft. Preferably, the grooves have a U-profile.

Bei einer bevorzugten Ausführungsform ist der Einsatz mit wenigstens einer die Wirkfläche verstärkenden Einlage aus Keramik oder Hartmetall versehen.In a preferred embodiment, the insert is provided with at least one of the active surface reinforcing insert made of ceramic or hard metal.

Bei einer bevorzugten Ausführungsform ist der Trog an der Verengung mit baugleichen oder bauungleichen Schleißsätzen versehen. Letztere sind zur Krafteinleitung in Drehrichtung vorn formschlüssig an dem Trog oder Einsatz abgestützt.In a preferred embodiment, the trough is provided at the constriction with identical or identical wear sets. Latter are for the introduction of force in the direction of rotation front positively supported on the trough or use.

Die Erfindung wird im folgenden anhand von in der Zeichnung dargestellten Ausführungsbeispielen näher erläutert. Gezeigt sind schematische Seitenansichten von Auflöseanlagen mit einem Trog und einer darin laufenden Welle, die mit einkeilenden Werkzeugen bestückt ist. Der Blick ist in Wellenlängsrichtung, d. h. in Transportrichtung des zu behandelnden Guts gerichtet.The invention is explained below with reference to exemplary embodiments illustrated in the drawing. Shown are schematic side views of dissolving plants with a trough and a shaft running therein, which is equipped with wedging tools. The view is in the wavelength direction, d. H. directed in the transport direction of the material to be treated.

Alle in der Zeichnung dargestellten Auflöseanlagen haben einen Trog mit einem Boden 10 und vertikalen Seitenwänden 12. Bei Fig. 1, Fig. 2 und Fig. 5 bis Fig. 8 ist der Boden 10 halbzylindrisch, bei Fig. 3 rechteckig und bei Fig. 4 prismatisch.All dissolvers shown in the drawing have a trough with a bottom 10 and vertical side walls 12. At Fig. 1, Fig. 2 and Fig. 5 to Fig. 8 the bottom 10 is semi-cylindrical, at Fig. 3 rectangular and at Fig. 4 prismatic.

In der Zylinderachse des Trogs ist eine Welle 14 angeordnet, die mit einkeilenden Werkzeugen 16 bestückt ist. Hinsichtlich deren Anbringung und Gestaltung kann auf die EP 0 712 665 A1 und DE 202 18 917.1 U1 verwiesen werden.In the cylinder axis of the trough a shaft 14 is arranged, which is equipped with wedge tools 16. Regarding their attachment and design can on the EP 0 712 665 A1 and DE 202 18 917.1 U1 to get expelled.

Die Auflöseanlagen dienen dazu, körniges mineralisches Gut von daran anhaftenden Weichbestandteilen zu befreien. Dazu laufen die Anlagen normalerweise naß. Der Trog wird im Gegenstrom mit dem zu behandelnden Gut von Wasser durchströmt. Die Verwendung von Wasser zum Waschen des Guts ist aber für die Erfindung nicht zwingend. Es gibt Sonderfälle, in denen Auflöseanlagen besser trocken laufen.The dissolver systems serve to rid granular mineral material from adhering soft components. To do this, the systems usually run wet. The trough is flowed through in countercurrent with the material to be treated by water. However, the use of water for washing the Guts is not mandatory for the invention. There are special cases in which dissolution plants run better dry.

Bei den in der Zeichnung dargestellten Auflöseanlagen sind verschiedene Maßnahmen getroffen, den Spalt zwischen der einen vertikalen Seitenwand 12 des Trogs und der Welle 14 mit den einkeilenden Werkzeugen 16 zu verengen, und zwar dort, wo die Werkzeuge 16 ihre Aufwärtsdrehung vollziehen. Die Verengung befindet sich zumeist unmittelbar über der Zentralachse der Welle 14. In dem einen oder anderen Fall (vgl. Fig. 7 und Fig. 8) beginnt sie aber bereits geringfügig darunter.In the dissolution equipment shown in the drawing, various measures are taken to narrow the gap between the one vertical side wall 12 of the trough and the shaft 14 with the wedging tools 16, where the tools 16 make their upward rotation. The constriction is usually located directly above the central axis of the shaft 14. In one or the other case (see. FIGS. 7 and 8 ) it starts already slightly below.

Zur Verengung des Spalts ist der Trog mit Einsätzen versehen. Das schafft Flexibilität. Man kann je nach Bedarf mit oder ohne Einsatz arbeiten.To narrow the gap, the trough is provided with inserts. That creates flexibility. You can work with or without use as needed.

Der Trog der Auflöseanlagen schamottiert im Betrieb in einer Dicke zu, die durch die Linie 18 angedeutet ist. Es bildet sich am Boden und über weite Teile des Trogumfangs ein Panzer aus an sich zu behandelndem Gut, das an dem Trog festhaftet. Das Zuschamottieren ist erwünscht. Es wirkt dem Verschleiß entgegen.The trough of the dissolver plants in operation to a thickness thick, which is indicated by the line 18. It forms on the ground and over large parts of the trough circumference a tank of material to be treated, which adheres to the trough. The mixing is desired. It counteracts the wear.

An den vertikalen Seitenwänden 12 des Trogs oberhalb der Zentralachse der Welle 14 ist normalerweise kein nennenswertes Zuschamottieren zu beobachten. Das Gut wird nach oben weggedrückt. Eine Panzerbildung wird durch die Schwerkraft, die Reibung des durch den Trog transportierten Guts und gegebenenfalls die Wasserströmung verhindert.On the vertical side walls 12 of the trough above the central axis of the shaft 14 is usually no significant Zuschamottieren observed. The estate is pushed upwards. Tank formation is prevented by gravity, the friction of the goods transported through the trough and possibly the flow of water.

Die Erfindung zielt darauf ab, die sich zuschamottierende Umfangspartie des Trogs in Aufwärtsdrehrichtung der an der Welle 14 sitzenden einkeilenden Werkzeuge 16 zu verlängern, um dadurch die Auflösewirkung zu verbessern. Dazu sind Einbauten geeignet, die an die Stelle des sich von Haus aus nicht bildenden Panzers treten, oder aber zum Teil oder ganz in der gewünschten Weise zuschamottieren.The invention aims to lengthen the scaling portion of the trough to be scoured in the upward direction of rotation of the wedging tools 16 seated on the shaft 14 to thereby enhance the dissolving action. For this purpose, internals are suitable, which take the place of the non-forming from home tank, or zuschamott in part or completely in the desired manner.

Bei dem Ausführungsbeispiel gemäß Fig. 1 ist ein keilförmiger Einsatz 20 starr an der vertikalen Seitenwand 12 des Trogs angebracht, an der sich die Aufwärtsdrehung der Welle 14 mit den einkeilenden Werkzeugen 16 vollzieht. Der Fußpunkt 22 des Keils befindet sich auf Höhe der Wellenachse. Die ebene Schrägfläche (Wirkfläche) 26 des Keils verengt den Spalt zwischen Trogwand 12 und Welle 14 oberhalb der Wellenachse. Der Keil schamottiert über etwa die halbe Länge der Wirkfläche 26 zu, und zwar in der Dicke des Panzers, der sich im Bodenbereich des Trogs bildet.In the embodiment according to Fig. 1 a wedge-shaped insert 20 is rigidly attached to the vertical side wall 12 of the trough, at which the upward rotation of the shaft 14 with the wedging tools 16 takes place. The base 22 of the wedge is located at the height of the shaft axis. The flat inclined surface (active surface) 26 of the wedge narrows the gap between the trough wall 12 and shaft 14 above the shaft axis. The wedge fires over approximately half the length of the active surface 26, in the thickness of the tank, which forms in the bottom region of the trough.

Bei dem Ausführungsbeispiel gemäß Fig. 2 ist bei einem genauso starr angebrachten Keil dessen Wirkfläche 26 in Verlängerung des Trogbodens gekrümmt. Die Wirkfläche 26 schamottiert über die volle Länge zu, ohne daß es einer besonderen Strukturierung bedarf.In the embodiment according to Fig. 2 is in an equally rigidly mounted wedge its active surface 26 curved in extension of the trough bottom. The active surface 26 chamfers over the full length, without the need for a special structuring.

Bei dem Ausführungsbeispiel gemäß Fig. 3 ist ein keilförmiger Einsatz 20 ähnlich dem der Fig. 1 als Gehäuse mit zu der Welle hin offenen Kammern 28 konzipiert. Die ebenen Trennwände 30 zwischen den Kammern 28 sind im wesentlichen radial zu der Welle 14 gerichtet. Durch diese Ausgestaltung wird das Zuschamottieren des Einsatzes 20 gefördert.In the embodiment according to Fig. 3 is a wedge-shaped insert 20 similar to that of Fig. 1 designed as a housing with open to the shaft chambers 28. The planar partitions 30 between the chambers 28 are directed substantially radially to the shaft 14. By this configuration, the Beschamottieren the insert 20 is promoted.

Bei dem Ausführungsbeispiel gemäß Fig. 4 ist ein Einsatz 20 auf Höhe der Zentralachse der Welle gelenkig an der Trogwand 12 angebracht. Die Anlenkachse 32 ist parallel zu der Welle 14 gerichtet.In the embodiment according to Fig. 4 an insert 20 is pivotally mounted on the trough wall 12 at the level of the central axis of the shaft. The pivot axis 32 is directed parallel to the shaft 14.

Die Oberfläche des Einsatzes 20 gemäß Fig. 4 ist einfach polygonal abgestuft, so daß zwei ebene Schrägflächen (Wirkflächen) 26 mit im wesentlichen tangentialer Neigung zu der Welle 14 gebildet werden. Zwischen dem Einsatz 20 und der Wand 12 des Trogs ist ein elastisches Polster 34 aus Gummi oder einem gummiähnlichen Material angeordnet. Das Polster 34 dient der elastischen Pufferung. Es verhindert, daß sich zu behandelndes Gut zwischen Einsatz und Trogwand festsetzt und die Gelenkbeweglichkeit des Einsatzes beeinträchtigt.The surface of the insert 20 according to Fig. 4 is simply stepped polygonal, so that two flat inclined surfaces (active surfaces) 26 are formed with a substantially tangential inclination to the shaft 14. Between the insert 20 and the wall 12 of the trough an elastic pad 34 made of rubber or a rubber-like material is arranged. The pad 34 serves for elastic buffering. It prevents that the material to be treated settles between the insert and the trough wall and impairs the joint mobility of the insert.

Bei dem Ausführungsbeispiel gemäß Fig. 5 ist ein gelenkig angebrachter Einsatz 20 zusätzlich zu dem elastischen Polster 34 mit einer oberhalb davon angebrachten Schraubendruckfeder gegen die Trogwand 12 abgepuffert. Die Wirkfläche 26 des Einsatzes 20 ist koaxial zu der Welle 14 in Umfangsrichtung gekrümmt. Sie hat auf Höhe der Wellenachse einen Abstand von der Trogwand 12, der etwa der Dicke des Panzers entspricht, der sich unterhalb des Einsatzes 20 durch Zuschamottieren bildet. In der Wirkfläche 26 sind U-förmige Nuten 38 vorgesehen, die sich im Betrieb mit Gut zusetzen.In the embodiment according to Fig. 5 a hinged insert 20 is buffered against the trough wall 12 in addition to the resilient pad 34 with a helical compression spring mounted above it. The active surface 26 of the insert 20 is curved coaxially with the shaft 14 in the circumferential direction. It has at the height of the shaft axis a distance from the trough wall 12, which corresponds approximately to the thickness of the tank, which forms below the insert 20 by Beschamottieren. In the active surface 26 U-shaped grooves 38 are provided, which enforce in operation with good.

Gemäß Fig. 6 sind bei einem Einsatz 20, dessen Gestaltung im übrigen dem der Fig. 5 entspricht, in den Nuten 38 Einlagen 40 aus Keramik oder Hartmetall vorgesehen, die die Nuten 38 vollständig ausfüllen.According to Fig. 6 are in a use 20, the design of the rest of the Fig. 5 corresponds, provided in the grooves 38 inserts 40 made of ceramic or hard metal, which completely fill the grooves 38.

Bei den Ausführungsbeispielen gemäß Fig. 7 und Fig. 8 ist der Einsatz 20 doppelt polygonal abgestuft, so daß drei ebene Schrägflächen (Wirkflächen) 26 mit im wesentlichen tangentialer Neigung zu der Welle 14 gebildet werden. Die Einsätze 20 sind unterhalb der Wellenachse an der Trogwand 12 angelenkt und mit einem elastischen Polster 34 und einer oberhalb davon angebrachten Gasfeder 42 gegen die Trogwand 12 abgepuffert. Die Gasfeder 42 ist in ihrer Federcharakteristik verstellbar.In the embodiments according to FIGS. 7 and 8 is the insert 20 double polygonal stepped so that three flat inclined surfaces (active surfaces) 26 with a substantially tangential inclination to the shaft 14th be formed. The inserts 20 are hinged below the shaft axis on the trough wall 12 and buffered with an elastic pad 34 and a gas spring 42 mounted above it against the trough wall 12. The gas spring 42 is adjustable in its spring characteristic.

Bei Fig. 8 werden die schrägen Wirkflächen 26 des Einsatzes 20 von drei baugleichen Schleißsätzen 44 gebildet, die mit Nuten 38 versehen sind. Die Schleißsätze 44 sind in Drehrichtung vorn an Nasen 46 des Einsatzes 20 formschlüssig abgestützt.at Fig. 8 the oblique active surfaces 26 of the insert 20 are formed by three identical Schleißsätzen 44, which are provided with grooves 38. The wear sets 44 are positively supported in the direction of rotation at the front of lugs 46 of the insert 20.

Claims (14)

  1. Dissolving station for granular material, especially for minerals to which soft matter, e. g. mud and/or clay, adheres, lumpy mineral conglomerates, comprising a trough which has an inlet and an outlet for the material and, arranged in the longitudinal axis of the trough, a rotatably driven shaft (14) fitted with wedging tools, wherein the material to be cleaned is conveyed through the trough between inlet and outlet, and wherein the trough, on the side where the tools move upwards, narrows towards the top and the inside away from the vertical above the central axis of the shaft (14), characterized in that the trough is narrowed by an insert (20) therein.
  2. Dissolving station according to claim 1, characterized in that the insert (20) is rigid.
  3. Dissolving station according to claim 1, characterized in that the insert (20) is movable.
  4. Dissolving station according to claim 3, characterized in that the insert (20) is attached to the trough in an articulated manner.
  5. Dissolving station according to claim 3 or 4, characterized in that the insert (20) is elastically cushioned against the trough.
  6. Dissolving station according to any one of the claims 3 to 5, characterized in that the insert (20) is spring-mounted against the trough, preferably by a gas spring (42) with adjustable spring characteristics.
  7. Dissolving station according to any one of the claims 1 to 6, characterized in that the insert (20) has an active surface (26) which is curved in the circumferential direction of the shaft (14) or extends substantially tangentially or polygonally thereto.
  8. Dissolving station according to claim 7, characterized in that the active surface (26) in the direction of rotation of the shaft (14) extends towards the wedging tools (16).
  9. Dissolving station according to claim 7 or 8, characterized in that the active surface (26) of the insert (20) is structured in a manner that holds the material to be treated.
  10. Dissolving station according to claim 9, characterized in that the active surface (26) of the insert (20) is provided with parallel grooves (38) that extend in the longitudinal direction of the shaft (14).
  11. Dissolving station according to claim 10, characterized in that the grooves (38) have a U-profile.
  12. Dissolving station according to any one of the claims 7 to 11, characterized in that the insert (20) is provided with at least one inlay (40) of ceramic or hard metal which reinforces the active surface (26).
  13. Dissolving station according to any one of the claims 1 to 12, characterized in that the trough is provided, in the narrowed section, with identical or dissimilar wear sets (44).
  14. Dissolving station according to claim 13, characterized in that the wear sets (44) are, at the front in the direction of rotation, supported on the trough or insert (20) in a form-locking manner.
EP03788824A 2002-12-06 2003-11-25 Dissolving station Expired - Lifetime EP1567275B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE20218919U 2002-12-06
DE20218919U DE20218919U1 (en) 2002-12-06 2002-12-06 pulping unit
PCT/DE2003/003897 WO2004052546A1 (en) 2002-12-06 2003-11-25 Dissolving station

Publications (2)

Publication Number Publication Date
EP1567275A1 EP1567275A1 (en) 2005-08-31
EP1567275B1 true EP1567275B1 (en) 2012-03-21

Family

ID=7977709

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03788824A Expired - Lifetime EP1567275B1 (en) 2002-12-06 2003-11-25 Dissolving station

Country Status (7)

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EP (1) EP1567275B1 (en)
AT (1) ATE550100T1 (en)
AU (1) AU2003292988A1 (en)
DE (1) DE20218919U1 (en)
ES (1) ES2383264T3 (en)
WO (1) WO2004052546A1 (en)
ZA (1) ZA200503874B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20218917U1 (en) 2002-12-06 2003-03-06 Müller & Co. Aufbereitungstechnik AG, Stetten pulping unit

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4341778C1 (en) * 1993-12-08 1995-06-08 Hermann Trestler Single shaft washing machine for removing mineral waste from objects

Also Published As

Publication number Publication date
EP1567275A1 (en) 2005-08-31
DE20218919U1 (en) 2003-03-06
WO2004052546A1 (en) 2004-06-24
AU2003292988A1 (en) 2004-06-30
ES2383264T3 (en) 2012-06-19
ATE550100T1 (en) 2012-04-15
ZA200503874B (en) 2006-08-30

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