EP1027934B1 - Mill, especially tube mill - Google Patents

Mill, especially tube mill Download PDF

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Publication number
EP1027934B1
EP1027934B1 EP99810113A EP99810113A EP1027934B1 EP 1027934 B1 EP1027934 B1 EP 1027934B1 EP 99810113 A EP99810113 A EP 99810113A EP 99810113 A EP99810113 A EP 99810113A EP 1027934 B1 EP1027934 B1 EP 1027934B1
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EP
European Patent Office
Prior art keywords
shells
mill
lining
mill according
linings
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EP99810113A
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German (de)
French (fr)
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EP1027934A1 (en
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Santiago Dr. Calatrava Valls
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Individual
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Priority to AT99810113T priority Critical patent/ATE237401T1/en
Priority to EP99810113A priority patent/EP1027934B1/en
Priority to DE59905065T priority patent/DE59905065D1/en
Publication of EP1027934A1 publication Critical patent/EP1027934A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/04—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with unperforated container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/18—Details
    • B02C17/22—Lining for containers

Definitions

  • the invention relates to a mill, preferably a tube mill, with a the grist-receiving rotatable grinding housing, which a Has an outer jacket and a lining embedded therein, the outer jacket being formed from at least two shell bodies is which is fixed to each other by fasteners and for which to the Embedding of the lining to be carried out on the inside walls of these shell bodies are detachable from each other.
  • the tube casing is the grinding housing formed from a one-piece, completely closed tube piece, which approximately 3 meters in diameter and length of up to 15 meters.
  • This from a metallic Sheet metal jacket is usually made of ceramic or bricks made of plastic.
  • this Grinding housings are filled with balls, which are caused by the rotation of the housing be circulated in this and slide against each other. hereby the regrind fed into the mill is cut to the desired grain size ground.
  • This lining needs to be replaced from time to time because it is subject to relatively heavy wear. The Removal of this lining as well as the fitting of new stones is due to this closed tubular design of the Grinding housing connected with laborious manual work.
  • a grinding drum is described in the publication DE-A 23 01 624, which is composed of a number of segments that one form cylindrical cross section.
  • the segments each have beveled Contact surfaces on which they lie against each other.
  • the Segments are each a number of plates that lie against each other assigned and on the inside of these segments are with corresponding Linings provided. These are sent exclusively to the Segments attached so that they do not break out during grinding. If these linings are now worn out, they must be removed from the Segments are solved by laborious work, otherwise you have to Throw away segments as well. Because these mills are usually very built large and therefore very heavy, this is with a corresponding high workload.
  • the present invention was based on the object to create a mill according to the type mentioned at the beginning, which has a grinding housing, which with a simple structure in the handling fast and user-friendly lining of the Inner walls of the pipe jacket allowed.
  • this lining can be compared the well-known mills much easier in this outer jacket be walled in.
  • two shell bodies are provided, which are semicircular in cross section and both with the same Dimensions are provided. This results in an optimal design this outer shell, which has a diameter of up to three Meters and a length of up to 15 meters.
  • Fig.1 and Fig.2 show a mill 10, preferably as a tube mill is trained. Such tube mills are used for grinding various Goods, such as in the food sector, in the Color industry, used in chemistry or in other industries.
  • the Mill 10 has a rotatable grinding housing which receives the material to be ground 15, which has a tubular outer jacket according to FIG the end faces of each a funnel-shaped connector 12 and each connect an inlet and outlet 17, 19. At this inlet and outlet 17, 19 a bearing 11, 13 supporting the housing 15 is provided, each attached to an indicated base 14, 18 are.
  • this mill 10 is a rotary drive, not shown assigned to the housing 15, through which the same to the angled axis of rotation can be rotated in both directions.
  • An indicated closure 29 at the outlet of the grinding housing 15 enables draining the grinding media that can be filled into this.
  • the outer jacket usually made of sheet steel, is provided with a lining 24 on the inside.
  • These from lined up Stones 34, 35 existing lining 24 serves as a Protective cover of the outer jacket and the other for protection of the grinding media, not shown in detail, filled in this housing 15, which are designed in particular as balls.
  • This Grinding bodies will have the grinding effect when turning the housing the regrind filled in generated.
  • the regrind is at the top Inlet 17 is fed in metered quantity into the mill housing 15 and removed in the ground state at outlet 19 below. This The arrangement of the grinder allows continuous or clocked loading the regrind.
  • stones 35 arranged one behind the other are also inside the mill 10 'protruding lugs 35' are provided which run along the housing Describe helical tracks 36, by means of which the grinding balls are taken in the direction of rotation and to one contribute to improved grinding. These stones 35 have this Purposes adapted to the lugs 35 'according to the tracks 36 Side surfaces 37. There are four mutually offset at an angle of 90 ° Driving tracks 36 present, it could also be more or less such tracks indicated by dashed lines in FIG. 2 may be provided.
  • the outer jacket consists of two shell bodies 21, 22 formed, which are fixed to one another by fastening means 40 and for that to be carried out on the inner walls of these shell bodies 21, 22 Embedding the lining 24 are detachable from each other.
  • This shell body 21, 22 are semicircular in cross section in the present case and both with the same dimensions and preferably with the same Provide training for ease of manufacture.
  • the lining 24 is separated from one another within the scope of the invention loosened and advantageously tub-shaped at an assembly site erected shell body 21, 22 walled.
  • the liner 24 is on both sides to the end face formed by the respective shell body 21, 22 44 arranged above so that this lining 24 at their contact points 24 'in the assembled state of the two Press the shell bodies 21, 22 against each other and from the fastening means 40 an approximately tangential pressure force on this Lining 24 is produced.
  • These stones are shaped in such a way that their mutual contact surfaces 24 'radially in the installed state extend to the mill housing.
  • a connecting means 45 for example a mortar, an adhesive or the like with which the grinding chamber 10 'of this lining 24 is tightly enclosed.
  • the shell bodies 21, 22 there are several along their longitudinal extent distributed flanges 21 ', 22' for those provided as screws Fastening means 40 arranged. These shell bodies face at the end 21, 22 each have a radial flange 27, on which a corresponding Flange 26 of the connector 12 connects, which can be connected to each other are.
  • a radial flange 27 on which a corresponding Flange 26 of the connector 12 connects, which can be connected to each other are.
  • the grinding chamber 10 'delimiting sieve through which the ground material with the desired grain size let through and is led to the outlet 19, meanwhile, the grinding media and the remaining regrind is prevented from leaving the grinding chamber 10 '.
  • clamping cylinders 52, 53 are used, through which the shell body 21, 22 at the flanges 21 ', 22' can be fixed.
  • clamping cylinders 52, 53 are held by a bracket 51 and can be quick and easy Tightening or loosening from a pressure medium source that can be connected to it be operated.
  • FIG 4 shows a variant of a fastener in which a Clamping clamp 55 is provided, which is indicated by a screw 56 can be brought into the clamped or released state.
  • the shell bodies 61, 62 in contrast to those arranged according to Fig.1 closed at the transition to each other.
  • the one shell body 61 is elongated Sheath 63 provided in a groove 64 of the other shell body 62 engages.
  • the lining is in turn in the shell bodies 61, 62 embedded that when clamping the Clamp 55 creates a tangential pressure force on the stones, which is basically adjustable.
  • This mill 10 according to the invention can be used as a further advantage through this simplified, automatable replacement of the lining achieve in this outer jacket that no business interruptions arise more. Such a replacement can be done within a short period of time for example when the mill is at a standstill overnight and the mill is put back into operation the next day. This increases the performance of this new type of mill.
  • the invention is sufficient with the exemplary embodiments explained above demonstrated. However, it could still be used in other variants represent. So there could be three or more shell bodies be in a corresponding manner in the assembled state form a circular cross section.
  • the grinder housing could also of two outer sheaths fastened one behind the other, each of two Shell bodies exist, be composed. It could also Housing also have a conical or conical outer shape.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)

Abstract

The outer jacket of the mill housing(15) is formed from at least two shell components(21,22) fastened together by fixing elements(40) and detachable from one another for the embedding of the lining(24) on the inner walls of the shell components. The shell components are semi-circular in cross section, both having the same dimensions. The respective linings of the shell components are in reciprocal contact when assembled and by the fixing elements an approximate tangentially acting force is imparted upon them.

Description

Die Erfindung betrifft eine Mühle, vorzugsweise eine Rohrmühle, mit einem das Mahlgut aufnehmenden drehbaren Mahlgehäuse, welches einen Aussenmantel und eine in diesem eingebettete Auskleidung aufweist, wobei der Aussenmantel aus wenigstens zwei Schalenkörpern gebildet ist, welche von Befestigungsmitteln aneinander fixiert und für das an den Innenwänden dieser Schalenkörper auszuführende Einbetten der Auskleidung voneinander lösbar sind.The invention relates to a mill, preferably a tube mill, with a the grist-receiving rotatable grinding housing, which a Has an outer jacket and a lining embedded therein, the outer jacket being formed from at least two shell bodies is which is fixed to each other by fasteners and for which to the Embedding of the lining to be carried out on the inside walls of these shell bodies are detachable from each other.

Bei einer gattungsmässigen Mühle ist der Rohrmantel des Mahlgehäuses aus einem einteiligen, rundum geschlossenen Rohrstück gebildet, welches einen Durchmesser von annähernd bis zu 3 Metern und eine Länge von bis zu 15 Metern aufweisen kann. Dieser aus einem metallischen Blech hergestellte Rohrmantel ist mit einer üblicherweise aus keramischen oder aus Kunststoff bestehenden Steinen ausgemauert. In dieses Mahlgehäuse sind Kugeln eingefüllt, welche durch die Rotation des Gehäuses in diesem umgewälzt werden und gegeneinander gleiten. Hierdurch wird das in die Mühle geführte Mahlgut auf die gewünschte Korngrösse gemahlen. Diese Auskleidung muss von Zeit zu Zeit ausgewechselt werden, da sie einem relativ starken Verschleiss ausgesetzt ist. Das Entfernen dieser Ausmauerung wie auch das Bestücken von neuen Steinen ist aufgrund dieser geschlossenen rohrförmigen Ausbildung des Mahlgehäuses mit umständlicher Handarbeit verbunden. In the case of a generic mill, the tube casing is the grinding housing formed from a one-piece, completely closed tube piece, which approximately 3 meters in diameter and length of up to 15 meters. This from a metallic Sheet metal jacket is usually made of ceramic or bricks made of plastic. In this Grinding housings are filled with balls, which are caused by the rotation of the housing be circulated in this and slide against each other. hereby the regrind fed into the mill is cut to the desired grain size ground. This lining needs to be replaced from time to time because it is subject to relatively heavy wear. The Removal of this lining as well as the fitting of new stones is due to this closed tubular design of the Grinding housing connected with laborious manual work.

In der Druckschrift DE-A 23 01 624 ist eine Mahltrommel beschrieben, welche aus einer Anzahl von Segmenten zusammengesetzt ist, die einen zylindrischen Querschnitt bilden. Die Segmente weisen jeweils abgeschrägte Anlageflächen auf, an denen sie gegenseitig anliegen. Den Segmenten sind jeweils eine Anzahl von aneinander anliegenden Platten zugeordnet und an ihren Innenseiten sind diese Segmente mit entsprechenden Auskleidungen versehen. Diese werden ausschliesslich an die Segmente befestigt, damit sie während des Mahlens nicht ausbrechen. Wenn nun diese Auskleidungen abgenützt sind, so müssen sie von den Segmenten durch mühselige Arbeit gelöst werden, ansonsten man die Segmente ebenfalls wegwerfen muss. Da diese Mühlen in der Regel sehr gross gebaut und damit sehr schwer gebaut sind, ist dies mit einem entsprechend hohen Arbeitsaufwand verbunden.A grinding drum is described in the publication DE-A 23 01 624, which is composed of a number of segments that one form cylindrical cross section. The segments each have beveled Contact surfaces on which they lie against each other. The Segments are each a number of plates that lie against each other assigned and on the inside of these segments are with corresponding Linings provided. These are sent exclusively to the Segments attached so that they do not break out during grinding. If these linings are now worn out, they must be removed from the Segments are solved by laborious work, otherwise you have to Throw away segments as well. Because these mills are usually very built large and therefore very heavy, this is with a corresponding high workload.

Der vorliegenden Erfindung wurde demgegenüber die Aufgabe zugrundegelegt, eine Mühle nach der eingangs erwähnten Gattung zu schaffen, welche ein Mahlgehäuse aufweist, das bei einem einfachen Aufbau eine in der Handhabung schnelles und bedienerfreundliches Auskleiden der Innenwände des Rohrmantels erlaubt.The present invention was based on the object to create a mill according to the type mentioned at the beginning, which has a grinding housing, which with a simple structure in the handling fast and user-friendly lining of the Inner walls of the pipe jacket allowed.

Die Aufgabe ist erfindungsgemäss durch die Merkmale des Anspruches 1 gelöst.According to the invention, the object is achieved by the features of claim 1 solved.

Mit dieser erfindungsgemässen Mühle kann diese Auskleidung gegenüber den bekannten Mühlen bedeutend einfacher in diesen Aussenmantel eingemauert werden. Durch das Vorsehen dieser Schalenkörper können diese beim Montageplatz wannenförmig hingestellt werden und die Auskleidung kann sogar mittels einfachen Manipulatoren automatisiert eingemauert werden.With this mill according to the invention, this lining can be compared the well-known mills much easier in this outer jacket be walled in. By providing this shell body can these are placed in the form of a tub at the assembly site and the Lining can even be automated using simple manipulators be walled in.

In einer vorteilhaften Ausführung sind zwei Schalenkörper vorgesehen, welche im Querschnitt halbkreisförmig ausgebildet und beide mit gleichen Dimensionen versehen sind. Damit ergibt sich eine optimale Auslegung dieses Aussenmantels, welcher einen Durchmesser bis zu drei Metern und eine Länge von bis zu 15 Metern aufweisen kann.In an advantageous embodiment, two shell bodies are provided, which are semicircular in cross section and both with the same Dimensions are provided. This results in an optimal design this outer shell, which has a diameter of up to three Meters and a length of up to 15 meters.

Ausführungsbeispiele der Erfindung sowie weitere Vorteile derselben sind nachfolgend anhand der Zeichnung näher erläutert. Es zeigt:

Fig.1
zeigt einen Querschnitt des Mühlengehäuses einer erfindungsgemässen Mühle,
Fig.2
eine schematisch dargestellte Seitenansicht der Mühle nach Fig.1 mit teilweisem Längsschnitt des Mühlengehäuses,
Fig.3
zeigt einen teilweisen Querschnitt des Mühlengehäuses mit einer schematischen Ansicht eines Befestigungsmittels für den Aussenmantel, und
Fig.4
zeigt einen teilweisen Querschnitt eines Mühlengehäuses mit einer schematischen Ansicht einer anderen Variante eines Befestigungsmittels für den Aussenmantel.
Embodiments of the invention and further advantages thereof are explained in more detail below with reference to the drawing. It shows:
Fig.1
shows a cross section of the mill housing of a mill according to the invention,
Fig.2
2 shows a schematically illustrated side view of the mill according to FIG. 1 with a partial longitudinal section of the mill housing,
Figure 3
shows a partial cross section of the mill housing with a schematic view of a fastener for the outer shell, and
Figure 4
shows a partial cross section of a mill housing with a schematic view of another variant of a fastener for the outer jacket.

Fig.1 und Fig.2 zeigen eine Mühle 10, die vorzugsweise als Rohrmühle ausgebildet ist. Solche Rohrmühlen werden für das Mahlen von verschiedenen Gütern, wie beispielsweise im Lebensmittelbereich, in der Farbindustrie, in der Chemie oder in anderen Branchen benutzt. Die Mühle 10 hat ein das Mahlgut aufnehmendes drehbares Mahlgehäuse 15, welches gemäss Fig.2 einen rohrförmigen Aussenmantel hat, an dessen Stirnseiten je ein trichterförmiges Verbindungsstück 12 und je einen Ein- und Auslass 17, 19 anschliessen. Bei diesem Ein- und Auslass 17, 19 ist je eine das Gehäuse 15 stützende Lagerung 11, 13 vorgesehen, die jeweils auf einem angedeuteten Sockel 14, 18 befestigt sind. Fig.1 and Fig.2 show a mill 10, preferably as a tube mill is trained. Such tube mills are used for grinding various Goods, such as in the food sector, in the Color industry, used in chemistry or in other industries. The Mill 10 has a rotatable grinding housing which receives the material to be ground 15, which has a tubular outer jacket according to FIG the end faces of each a funnel-shaped connector 12 and each connect an inlet and outlet 17, 19. At this inlet and outlet 17, 19 a bearing 11, 13 supporting the housing 15 is provided, each attached to an indicated base 14, 18 are.

Des weiteren ist dieser Mühle 10 ein nicht näher dargestellter Drehantrieb für das Gehäuse 15 zugeordnet, durch welchen dasselbe um die schiefwinklige Drehachse in beiden Richtungen gedreht werden kann. Ein angedeuteter Verschluss 29 beim Auslass des Mahlgehäuses 15 ermöglicht ein Ablassen der in dieses einfüllbaren Mahlkörper.Furthermore, this mill 10 is a rotary drive, not shown assigned to the housing 15, through which the same to the angled axis of rotation can be rotated in both directions. An indicated closure 29 at the outlet of the grinding housing 15 enables draining the grinding media that can be filled into this.

Der üblicherweise aus einem Stahlblech bestehende Aussenmantel ist innen mit einer Auskleidung 24 versehen. Diese aus aneinandergereihten Steinen 34, 35 bestehende Auskleidung 24 dient zum einen als Schutzabdeckung des Aussenmantels und zum andern zur Schonung von den in diesem Gehäuse 15 eingefüllten, nicht näher gezeigten Mahlkörpern, die insbesondere als Kugeln ausgebildet sind. Mittels diesen Mahlkörpern wird beim Drehen des Gehäuses die mahlende Wirkung auf das darin eingefüllte Mahlgut erzeugt. Das Mahlgut wird beim oberen Einlass 17 in dosierter Menge in das Mühlengehäuse 15 beschickt und unten beim Auslass 19 im gemahlenen Zustand wieder entnommen. Diese Mühlenanordnung erlaubt eine kontinuierliche oder getaktete Beschickung des Mahlgutes.The outer jacket, usually made of sheet steel, is provided with a lining 24 on the inside. These from lined up Stones 34, 35 existing lining 24 serves as a Protective cover of the outer jacket and the other for protection of the grinding media, not shown in detail, filled in this housing 15, which are designed in particular as balls. By means of this Grinding bodies will have the grinding effect when turning the housing the regrind filled in generated. The regrind is at the top Inlet 17 is fed in metered quantity into the mill housing 15 and removed in the ground state at outlet 19 below. This The arrangement of the grinder allows continuous or clocked loading the regrind.

Ferner sind hintereinander angeordnete Steine 35 mit ins Mühleninnere 10' vorstehenden Nasen 35' vorgesehen, welche entlang des Gehäuses schneckenförmig verlaufende Mitnehmerbahnen 36 beschreiben, mittels denen die Mahlkugeln in Drehrichtung mitgenommen werden und zu einer verbesserten Mahlung beitragen. Diese Steine 35 haben zu diesem Zwecke bei diesen Nasen 35' entsprechend den Bahnen 36 angepasste Seitenflächen 37. Es sind hierbei vier zueinander im Winkel von 90° versetzte Mitnehmerbahnen 36 vorhanden, es könnten auch mehr oder weniger solcher in Fig.2 strichliniert angedeuteter Bahnen vorgesehen sein.Furthermore, stones 35 arranged one behind the other are also inside the mill 10 'protruding lugs 35' are provided which run along the housing Describe helical tracks 36, by means of which the grinding balls are taken in the direction of rotation and to one contribute to improved grinding. These stones 35 have this Purposes adapted to the lugs 35 'according to the tracks 36 Side surfaces 37. There are four mutually offset at an angle of 90 ° Driving tracks 36 present, it could also be more or less such tracks indicated by dashed lines in FIG. 2 may be provided.

Erfindungsgemäss ist der Aussenmantel aus zwei Schalenkörpern 21, 22 gebildet, welche von Befestigungsmitteln 40 aneinander fixiert sind und für das an den Innenwänden dieser Schalenkörpern 21, 22 auszuführende Einbetten der Auskleidung 24 voneinander lösbar sind. Diese Schalenkörper 21, 22 sind vorliegend im Querschnitt halbkreisförmig ausgebildet und beide mit gleichen Dimensionen und vorzugsweise mit identischer Ausbildung zwecks einfacherer Herstellung versehen.According to the invention, the outer jacket consists of two shell bodies 21, 22 formed, which are fixed to one another by fastening means 40 and for that to be carried out on the inner walls of these shell bodies 21, 22 Embedding the lining 24 are detachable from each other. This shell body 21, 22 are semicircular in cross section in the present case and both with the same dimensions and preferably with the same Provide training for ease of manufacture.

Die Auskleidung 24 wird im Rahmen der Erfindung separat in die voneinander gelösten und vorteilhaft an einem Montageplatz wannenförmig aufgestellten Schalenkörper 21, 22 eingemauert. Die Auskleidung 24 ist beidseitig zu der vom jeweiligen Schalenkörper 21, 22 gebildeten Stirnseite 44 vorstehend angeordnet, damit sich diese Auskleidung 24 bei ihren Berührungsstellen 24' im zusammengebauten Zustand der beiden Schalenkörper 21, 22 gegenseitig andrücken und von den Befestigungsmitteln 40 eine annähernd tangential wirkende Druckkraft auf diese Auskleidung 24 erzeugt wird. Diese Steine sind derart geformt, dass sich ihre gegenseitigen Berührungsflächen 24' im verlegten Zustand radial zum Mühlengehäuse erstrecken. Zwischen den Steinen 34 ist jeweils ein Verbindungsmittel 45, zum Beispiel ein Mörtel, ein Kleber oder ähnliches vorhanden, womit der Mahlraum 10' von dieser Auskleidung 24 dicht umschlossen ist.The lining 24 is separated from one another within the scope of the invention loosened and advantageously tub-shaped at an assembly site erected shell body 21, 22 walled. The liner 24 is on both sides to the end face formed by the respective shell body 21, 22 44 arranged above so that this lining 24 at their contact points 24 'in the assembled state of the two Press the shell bodies 21, 22 against each other and from the fastening means 40 an approximately tangential pressure force on this Lining 24 is produced. These stones are shaped in such a way that their mutual contact surfaces 24 'radially in the installed state extend to the mill housing. Between each of the stones 34 a connecting means 45, for example a mortar, an adhesive or the like with which the grinding chamber 10 'of this lining 24 is tightly enclosed.

Durch die auf die Auskleidung 24 rundum wirkende innere tangentiale Druckkraft werden die einzelnen Steine 34, 35 auf dem gesamten Durchmesser an den jeweiligen Aussenmantel 21, 22 gedrückt. Dadurch müssen diese Steine 34, 35 nicht am Aussenmantel durch einen Mörtel oder dergleichen befestigt werden, sondern sie können direkt an diesem anliegen. Dies erleichtert sowohl das Einbetten von neuen als auch das Herausnehmen der verschlissenen Steine. Im Prinzip könnte auch auf das Verbindungsmittel 45 verzichtet werden, d.h. die Steine könnten bloss in die Schalenkörper eingelegt und - sich unmittelbar gegenseitig berührend - aneinandergereiht sein. Due to the inner tangential acting all around on the lining 24 The pressure of the individual stones 34, 35 on the whole Diameter pressed against the respective outer jacket 21, 22. Thereby these stones 34, 35 do not have to be covered by mortar on the outer surface or the like, but they can be attached directly to this issue. This makes it easier to embed new ones as well Take out the worn stones. In principle, it could also be based on the connecting means 45 are dispensed with, i.e. the stones could just inserted into the shell body and - directly to each other touching - strung together.

Bei den Schalenkörpern 21, 22 sind mehrere entlang ihrer Längserstrekkung verteilte Flansche 21', 22' für die als Schrauben vorgesehenen Befestigungsmittel 40 angeordnet. Endseitig weisen diese Schalenkörper 21, 22 je einen radialen Flansch 27 auf, an welchen ein entsprechender Flansch 26 des Verbindungsstückes 12 anschliesst, die miteinander verbindbar sind. Bei den Flanschen 26, 27 am Auslass ist ein nicht näher gezeigtes, den Mahlraum 10' begrenzendes Sieb vorhanden, durch welches das gemahlene Gut mit der gewünschten Korngrösse durchgelassen und zum Auslass 19 geführt wird, indessen die Mahlkörper und das übrige Mahlgut von einem Verlassen des Mahlraumes 10' gehindert wird.In the case of the shell bodies 21, 22 there are several along their longitudinal extent distributed flanges 21 ', 22' for those provided as screws Fastening means 40 arranged. These shell bodies face at the end 21, 22 each have a radial flange 27, on which a corresponding Flange 26 of the connector 12 connects, which can be connected to each other are. One is not closer to the flanges 26, 27 at the outlet shown, the grinding chamber 10 'delimiting sieve through which the ground material with the desired grain size let through and is led to the outlet 19, meanwhile, the grinding media and the remaining regrind is prevented from leaving the grinding chamber 10 '.

Gemäss der schematischen Veranschaulichung in Fig.3 können als Befestigungsmittel hydraulisch oder pneumatisch betätigbare Klemmzylinder 52, 53 verwendet werden, durch welche die Schalenkörper 21, 22 bei den Flanschen 21', 22' fixierbar sind. Diese Klemmzylinder 52, 53 sind von einem Bügel 51 gehalten und können für ein schnelles und einfaches Festziehen oder Lösen von einer mit diesen verbindbaren Druckmittelquelle betätigt werden.According to the schematic illustration in Figure 3 can be used as a fastener hydraulically or pneumatically operated clamping cylinders 52, 53 are used, through which the shell body 21, 22 at the flanges 21 ', 22' can be fixed. These clamping cylinders 52, 53 are held by a bracket 51 and can be quick and easy Tightening or loosening from a pressure medium source that can be connected to it be operated.

Fig.4 zeigt eine Variante eines Befestigungsmittels, bei dem eine Klemmbride 55 vorgesehen ist, die von einer angedeuteten Schraube 56 in den Klemm- bzw. in den gelösten Zustand gebracht werden kann. Ausserdem sind als Besonderheit die Schalenkörper 61, 62 im Gegensatz zu denjenigen gemäss Fig.1 beim Übergang zueinander geschlossen angeordnet. Zu diesem Zwecke ist der eine Schalenkörper 61 mit einem verlängerten Mantel 63 versehen, der in eine Nut 64 des anderen Schalenkörpers 62 eingreift. Die Auskleidung ist wiederum derart in den Schalenkörpern 61, 62 eingebettet, dass beim Zusammenspannen der Klemmbride 55 eine tangential wirkende Druckkraft auf die Steine entsteht, die grundsätzlich einstellbar ist. Figure 4 shows a variant of a fastener in which a Clamping clamp 55 is provided, which is indicated by a screw 56 can be brought into the clamped or released state. Furthermore are the shell bodies 61, 62 in contrast to those arranged according to Fig.1 closed at the transition to each other. For this purpose, the one shell body 61 is elongated Sheath 63 provided in a groove 64 of the other shell body 62 engages. The lining is in turn in the shell bodies 61, 62 embedded that when clamping the Clamp 55 creates a tangential pressure force on the stones, which is basically adjustable.

Mit dieser erfindungsgemässen Mühle 10 lässt sich als weiterer Vorteil durch dieses vereinfachte automatisierbare Auswechseln der Auskleidung in diesem Aussenmantel erreichen, dass keine Betriebsunterbrüche mehr entstehen. Eine solche Auswechslung kann innerhalb kurzer Zeit beispielsweise bei einem Stillstand der Mühle über Nacht ausgeführt und die Mühle anderntags wieder in Betriebsbereitschaft gesetzt werden. Dies erhöht die Leistungsfähigkeit dieser neuartigen Mühle.This mill 10 according to the invention can be used as a further advantage through this simplified, automatable replacement of the lining achieve in this outer jacket that no business interruptions arise more. Such a replacement can be done within a short period of time for example when the mill is at a standstill overnight and the mill is put back into operation the next day. This increases the performance of this new type of mill.

Mit dieser Mühle 10 kann einem Mühlenbetreiber ein praktisch ohne Unterbruch gewährleisteter Betrieb auch in dem Sinne aufrechterhalten werden, indem in einem Service-System die defekten oder abgenützten Mühlen von einer zentralen Servicestelle aus auf Verlangen oder in geregelten Zeitabständen ersetzt werden. Bei diesem Servicekonzept kann auch eine Ersatzmühle hingestellt werden, um einen annähernd unterbruchfreien Betrieb zu ermöglichen.With this mill 10, a mill operator can practically without Interruption guaranteed operation also maintained in the sense be the defective or worn in a service system Mills from a central service point on request or in regulated Intervals are replaced. With this service concept you can a replacement mill can also be placed to ensure an almost uninterrupted To enable operation.

Die Erfindung ist mit den oben erläuterten Ausführungsbeispielen ausreichend dargetan. Sie liesse sich jedoch noch in anderen Varianten darstellen. So könnten drei oder noch mehr Schalenkörper vorhanden sein, welche in entsprechender Weise im zusammengebauten Zustand einen kreisförmigen Querschnitt bilden. Das Mahlgehäuse könnte auch aus zwei hintereinander befestigten Aussenmanteln, welche je aus zwei Schalenkörpern bestehen, zusammengesetzt sein. Zudem könnte das Gehäuse auch eine konische oder kegelige Aussenform aufweisen.The invention is sufficient with the exemplary embodiments explained above demonstrated. However, it could still be used in other variants represent. So there could be three or more shell bodies be in a corresponding manner in the assembled state form a circular cross section. The grinder housing could also of two outer sheaths fastened one behind the other, each of two Shell bodies exist, be composed. It could also Housing also have a conical or conical outer shape.

Claims (7)

  1. A mill, especially a tube mill with a rotatable milling body (15) accepting the material to be ground, which has an outer jacket and a lining (24) embedded in it, whereby the outer jacket consists of at least two shells (21, 22) fixed to one another by means of fasteners (40) and detachable from one another for embedding the lining (24) to the inner walls of these shells (21, 22), characterised in that at least one of the linings (24) to be embedded in the shells (21, 22) respectively is arranged to protrude at the two matching end faces (44) formed by the shells (21, 22) in the peripheral direction, in order that these respective linings (24) are in contact with each other in an assembled state and a pressure force acting approximately tangentially on these linings (24) is produced.
  2. A mill according to claim 1, characterised in that the two shells (21, 22) are semi-circular in cross-section and are both of the same dimensions.
  3. A mill according to claim 1 or 2, characterised in that both the linings (24) embedded respectively on the shells (21, 22) are arranged to protrude at the two matching end faces (44) at the shells (21, 22).
  4. A mill according to one of the preceding claims, characterised in that the shells (21, 22) have several flanges (21', 22') for the fasteners (40), spaced along their end faces (44), which face each other on the two shells.
  5. A mill according to claim 4, characterised in that the fasteners can be bolts (41), clamping bridges (55), hydraulically or air-operated clamping cylinders (52, 53) or the like, by means of which the shells (21, 22) can be fixed at the flanges (21', 22').
  6. A mill according to one of the preceding claims, characterised in that the lining (24) consists of bricks (34, 35) arranged in rows in the manner of fired bricks, the bricks being joined together by a jointing agent (45).
  7. A mill according to one of the preceding claims, characterised in that the shells (61, 62) are in a closed arrangement at the transition from one to the other.
EP99810113A 1999-02-10 1999-02-10 Mill, especially tube mill Expired - Lifetime EP1027934B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT99810113T ATE237401T1 (en) 1999-02-10 1999-02-10 MILL, PREFERABLY A TUBE MILL
EP99810113A EP1027934B1 (en) 1999-02-10 1999-02-10 Mill, especially tube mill
DE59905065T DE59905065D1 (en) 1999-02-10 1999-02-10 Mill, preferably a tube mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP99810113A EP1027934B1 (en) 1999-02-10 1999-02-10 Mill, especially tube mill

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EP1027934A1 EP1027934A1 (en) 2000-08-16
EP1027934B1 true EP1027934B1 (en) 2003-04-16

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AT (1) ATE237401T1 (en)
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006013569A1 (en) * 2005-04-27 2006-11-09 Khd Humboldt Wedag Gmbh tube mill
EP3131599B1 (en) 2014-04-15 2019-02-20 Tc1 Llc Catheter pump with access ports
CN110328018B (en) * 2019-08-09 2024-02-20 广西桂林航大重工机械有限公司 Novel structure of mill main machine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1468893A (en) * 1920-01-23 1923-09-25 Franklin H Wolever Pulverizing mill
US3619439A (en) * 1969-02-07 1971-11-09 Champion Spark Plug Co Method of making a brick with wear indicator
AU5014872A (en) * 1972-01-13 1974-06-20 Dominion Engineering Works Limited Composite mill structure

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EP1027934A1 (en) 2000-08-16
ATE237401T1 (en) 2003-05-15

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