DE1189360B - Device for wear protection in centrifugal mills - Google Patents
Device for wear protection in centrifugal millsInfo
- Publication number
- DE1189360B DE1189360B DEG35585A DEG0035585A DE1189360B DE 1189360 B DE1189360 B DE 1189360B DE G35585 A DEG35585 A DE G35585A DE G0035585 A DEG0035585 A DE G0035585A DE 1189360 B DE1189360 B DE 1189360B
- Authority
- DE
- Germany
- Prior art keywords
- centrifugal
- wear protection
- rod
- wear
- mills
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/14—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices
- B02C13/18—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters rigidly connected to the rotor
- B02C13/1807—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters rigidly connected to the rotor the material to be crushed being thrown against an anvil or impact plate
- B02C13/1835—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters rigidly connected to the rotor the material to be crushed being thrown against an anvil or impact plate by means of beater or impeller elements fixed in between an upper and lower rotor disc
- B02C13/1842—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters rigidly connected to the rotor the material to be crushed being thrown against an anvil or impact plate by means of beater or impeller elements fixed in between an upper and lower rotor disc with dead bed protected beater or impeller elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/14—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices
- B02C13/18—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters rigidly connected to the rotor
- B02C13/1807—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters rigidly connected to the rotor the material to be crushed being thrown against an anvil or impact plate
- B02C13/1814—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters rigidly connected to the rotor the material to be crushed being thrown against an anvil or impact plate by means of beater or impeller elements fixed on top of a disc type rotor
- B02C13/1821—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters rigidly connected to the rotor the material to be crushed being thrown against an anvil or impact plate by means of beater or impeller elements fixed on top of a disc type rotor the beater or impeller elements being rotatably fixed around their own axis
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Pulverization Processes (AREA)
Description
Einrichtung zum Verschleißschutz bei Schleudermühlen Die Erfindung bezieht sich auf Schleudermühlen und ähnliche Hartzerkleinerungsmaschinen, bei denen das eingebrachte Brechgut auf hohe Geschwindigkeit beschleunigt und sodann gegen feste Prallelemente abgeschleudert wird. Die Beschleunigung des Brechgutes erfolgt im allgemeinen mit Hilfe von entsprechend hochtourig angetriebenen Schleuderrotoren, die über den Umfang verteilt angeordnete, meist schaufelförmige Leitelemente aufweisen. Während der Beschleunigung und im besonderen Maße beim Abschleudern vom Rotor unterliegt das Brechgut einer intensiven Relativbewegung gegenüber den Leitelementen. Daher erfahren vor allem deren Außenkanten eine starke Abnutzung, die meist zur Verwendung von harten, verschleißfesten Werkstoffen zwingt.Device for wear protection in centrifugal mills The invention refers to centrifugal mills and similar hard grinding machines where the introduced crushed material is accelerated to high speed and then against solid impact elements is thrown off. The material to be crushed is accelerated generally with the help of high-speed driven centrifugal rotors, which have mostly shovel-shaped guide elements distributed over the circumference. Subject to during acceleration and, in particular, when being thrown off the rotor the crushed material undergoes intense relative movement in relation to the guide elements. Therefore Above all, their outer edges experience heavy wear, which is mostly for use of hard, wear-resistant materials.
Um die Lebensdauer der verschiedenen Bauteile des Rotors möglichst vollständig auszunutzen, sind die exponierten Verschleißzonen, d. h. die Schaufelkanten, bereits mittels feststehender stabförmiger Elemente vor der Einwirkung des Brechgutes abgeschirmt worden. Solche Verschleißstäbe werden aber ebenfalls verhältnismäßig schnell einseitig abgenutzt, weil sie immer in demselben begrenzten Umfangsbereich mit dem Brechgut in Berührung kommen. Sie werden also schon infolge einer für die einwandfeie Wirkung der Leitelemente unzulässigen Deformierung unbrauchbar, auch wenn von ihrem ganzen Verschleißmaterial erst ein kleinerer Teil verzehrt ist. Die Beseitigung dieses Nachteils ist Aufgabe der Erfindung.To maximize the service life of the various components of the rotor to fully utilize the exposed wear zones, i. H. the blade edges, already by means of fixed rod-shaped elements before the action of the crushed material been shielded. However, such wear bars are also proportionate quickly worn on one side because they are always in the same limited circumference come into contact with the material to be crushed. So you will already be a result of one for that Impeccable effect of the guide elements inadmissible deformation unusable, too when only a small part of all their wear and tear has been consumed. the The object of the invention is to eliminate this disadvantage.
Ausgehend von einer Einrichtung zum Verschleißschutz bei Schleudermühlen mit einem Schleuderrotor und an demselben in Umfangsrichtung verteilten Leitelementen für das abzuschleudernde Brechgut, wobei vor der Austrittskante jedes Leitelementes ein auswechselbarer Verschleißschutzkörper vorgesehen ist, besteht die Erfindung zur Hauptsache darin, daß der Verschleißschutzkörper in an sich bekannter Weise als stabförmiger Körper zwischen die obere und untere Scheibe des Schleuderrotors achsparallel derart eingesetzt ist, daß er um seine eigene Achse frei drehbar ist.Based on a device for wear protection in centrifugal mills with a centrifugal rotor and on the same guide elements distributed in the circumferential direction for the crushed material to be thrown off, with each guide element in front of the trailing edge an exchangeable wear protection body is provided, the invention consists the main thing is that the wear protection body in a known manner as a rod-shaped body between the upper and lower discs of the centrifugal rotor is used axially parallel in such a way that it is freely rotatable about its own axis.
Als weitere Einzelheiten des Erfindungsgegenstandes können die stabförmigen Körper an ihrem Umfang mehrere Längsrippen aufweisen.As further details of the subject matter of the invention, the rod-shaped Body have several longitudinal ribs on its circumference.
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt, wobei F i g. 1 einen Horizontalschnitt und F i g. 2 einen vertikalen Axialschnitt des Schleudertellers einer Schleudermühle zeigt.An embodiment of the invention is shown in the drawing, where F i g. 1 shows a horizontal section and FIG. 2 shows a vertical axial section of the centrifugal plate of a centrifugal mill shows.
Der Schleuderteller besteht aus einer auf einer vertikalen Welle angeflanschten unteren Scheibe 1 und einer oberen Scheibe 2, zwischen denen die Schleuderschaufeln 3 befestigt sind. Die obere Scheibe weist eine zentrale kreisförmige Aussparung 4 auf, durch die das zugeführte Brechgut in den rotierenden Schleuderteller und sodann, in Drehbewegung versetzt, unter der Wirkung der Fliehkraft in den Bereich der Schleuderschaufeln gelangt. Hier erreicht das Brechgut seine volle Geschwindigkeit und wird vom äußeren Rande des Tellers gegen (nicht dargestellte) Prallflächen abgeschleudert, wobei die beabsichtigte Zerkleinerung eintritt.The centrifugal plate consists of a lower disk 1 flanged onto a vertical shaft and an upper disk 2, between which the centrifugal vanes 3 are attached. The upper disc has a central circular recess 4 through which the crushed material that is fed into the rotating centrifugal plate and then, set in rotary motion, reaches the area of the centrifugal blades under the effect of centrifugal force. Here the material to be crushed reaches its full speed and is thrown from the outer edge of the plate against impact surfaces (not shown), whereby the intended crushing occurs.
Die höchste Relativgeschwindigkeit zwischen Brechgut und Schleuderschaufeln tritt an deren Außenkanten 5 auf. An diesen Stellen sind daher parallel zu den Schaufelkanten verlaufende Verschleißstäbe 6 um eine zur Drehachse des Schleudertellers parallele Achse 7 frei drehbar angeordnet. Um die Drehbewegung der Verschleißstäbe zu unterstützen, sind am Stabumfang Längsrippen 8 vorgesehen, die von dem vorübergleitenden Brechgut einseitig beaufschlagt werden. Die Enden der Achsen 7 sind in der oberen und unteren Scheibe 1 bzw. 2 des Schleuderrotors lösbar angebracht, so daß die Verschleißstäbe nach Herausnahme der Achsen leicht ausgewechselt werden können.The highest relative speed between the material to be crushed and the centrifugal blades occurs at their outer edges 5. At these points are therefore parallel to the blade edges extending wear bars 6 about a parallel to the axis of rotation of the centrifugal plate Axis 7 freely rotatable. To support the rotating movement of the wear bars, longitudinal ribs 8 are provided on the circumference of the rod, which are of the crushed material sliding past be applied on one side. The ends of the axles 7 are in the upper and lower Disc 1 or 2 of the centrifugal rotor detachably attached so that the wear bars can be easily exchanged after removing the axles.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEG35585A DE1189360B (en) | 1962-07-28 | 1962-07-28 | Device for wear protection in centrifugal mills |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEG35585A DE1189360B (en) | 1962-07-28 | 1962-07-28 | Device for wear protection in centrifugal mills |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1189360B true DE1189360B (en) | 1965-03-18 |
Family
ID=7125205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEG35585A Pending DE1189360B (en) | 1962-07-28 | 1962-07-28 | Device for wear protection in centrifugal mills |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1189360B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2776210A1 (en) * | 1998-03-18 | 1999-09-24 | Nordberg Bergeaud Sa | Roller ejector for vertical axis grinder |
| EP1484114A1 (en) * | 2003-05-13 | 2004-12-08 | Satake Corporation | Impact crushing apparatus for grain |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2992783A (en) * | 1959-02-03 | 1961-07-18 | Simplicity Eng Co | Crusher apparatus and methods of crushing aggregates |
-
1962
- 1962-07-28 DE DEG35585A patent/DE1189360B/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2992783A (en) * | 1959-02-03 | 1961-07-18 | Simplicity Eng Co | Crusher apparatus and methods of crushing aggregates |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2776210A1 (en) * | 1998-03-18 | 1999-09-24 | Nordberg Bergeaud Sa | Roller ejector for vertical axis grinder |
| EP1484114A1 (en) * | 2003-05-13 | 2004-12-08 | Satake Corporation | Impact crushing apparatus for grain |
| CN1305571C (en) * | 2003-05-13 | 2007-03-21 | 株式会社佐竹 | Impact crushing apparatus for grain |
| US7204438B2 (en) | 2003-05-13 | 2007-04-17 | Satake Corporation | Impact crushing apparatus for grain |
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