EP1899070A1 - Roll crusher for crushing hot cement clinker - Google Patents

Roll crusher for crushing hot cement clinker

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Publication number
EP1899070A1
EP1899070A1 EP06762006A EP06762006A EP1899070A1 EP 1899070 A1 EP1899070 A1 EP 1899070A1 EP 06762006 A EP06762006 A EP 06762006A EP 06762006 A EP06762006 A EP 06762006A EP 1899070 A1 EP1899070 A1 EP 1899070A1
Authority
EP
European Patent Office
Prior art keywords
crushing
rings
elements
roll crusher
crusher
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.)
Granted
Application number
EP06762006A
Other languages
German (de)
French (fr)
Other versions
EP1899070B1 (en
Inventor
Erich Sommer
Karl Schinke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KHD Humboldt Wedag AG
Original Assignee
KHD Humboldt Wedag AG
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Publication of EP1899070A1 publication Critical patent/EP1899070A1/en
Application granted granted Critical
Publication of EP1899070B1 publication Critical patent/EP1899070B1/en
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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
    • B02C4/00—Crushing or disintegrating by roller mills
    • B02C4/28—Details
    • B02C4/30—Shape or construction of rollers
    • B02C4/305—Wear resistant rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C4/00—Crushing or disintegrating by roller mills
    • B02C4/02—Crushing or disintegrating by roller mills with two or more rollers
    • B02C4/08—Crushing or disintegrating by roller mills with two or more rollers with co-operating corrugated or toothed crushing-rollers

Definitions

  • the invention relates to a roll crusher for breaking hot bulk material such.
  • the spaced-apart crushing elements are distributed only as axially parallel profiles and otherwise in their entirety unevenly over the outer circumference of the crushing rings, whereby the nip between adjacent crushing rollers during the crushing roller operation constantly narrows and then widened again, depending on the angular position of the Crushing rollers an uneven crushing of the cement clinker and an uneven particle size distribution of the multi-roll crusher leaving load has entailed, with the further consequence that in the multi-roll crusher insufficiently digested clinker pieces can not be sufficiently cooled.
  • a varying grain size of the cement clinker negatively affects the downstream grinding.
  • the invention has for its object to provide a multi-roll crusher of the type mentioned for a grate cooler for cooling hot bulk material in particular hot cement linker, which is suitable for good Guteinzugs and long service life of the annular crushing tools discharged from the rotary kiln cement clinker dry to reasonably equal piece sizes crushing and to achieve a uniform particle size distribution in the digested refrigerated goods as a prerequisite for a high cooler efficiency and for a more uniform downstream grinding.
  • the feed materials for the crushing rollers including the Glühnester contained in the hot clinker layer of the crushing elements of the rotating crushing rollers uniformly digested, which has a uniform particle size distribution in Brecheraustragsgut and thus an effective clinker cooling result.
  • the evenly distributed over the cylindrical outer side of the crushing ring arranged arranged breaking elements convey the function interchangeable catchment aids for the material to be crushed in the respective nip.
  • the projecting from the cylindrical outer side of the crushing ring crushing elements may have the shape of nubs, z.
  • the refractive elements but also have the shape of lying parallel to the Brechringachse webs.
  • the material of the projecting refractive elements can be more resistant to wear than the material of the crushing body, which consists in particular of cast metal and carries the refractive elements.
  • the material of the refractive elements z. B. made of carbide, z. B. of cemented carbide.
  • the complete crushing rings with the projecting crushing elements can be produced by composite casting or by welding the hard crushing elements on the crushing rings or by inserting the hard crushing elements into corresponding recesses such as holes, grooves, etc. of the crushing rings.
  • FIG. 1 is a perspective view of a first embodiment of a crushing ring for the rolls of the roll crusher according to the invention
  • Fig. 2 an enlarged view of an end view of the crushing ring of Figure 1
  • 3 shows the perspective view of a second embodiment of a breaking ring according to the invention.
  • crushing rollers When roll crusher invention, which is associated with a cement clinker cooler, more crushing rollers, z. B. 5 or 6 crushing rollers arranged side by side in parallel, which extend across the entire radiator width transverse to the radiator conveying direction and which are driven in opposite directions in their majority.
  • the crushing rollers each have a non-illustrated in the drawing rotatably mounted support tube, on each of which a plurality of break-in rings to be connected to the support tube to be connected are pushed, the outer surface having projecting refractive elements.
  • the outer side of the crushing ring 10 as well as all the crushing rings pushed onto the associated support tube provided with rotary drive are cylindrical.
  • This uniform distribution or spacing of the plurality of arranged in the manner of a grid crushing element nubs 12 applies to all pushed onto one support tube and then immediately juxtaposed crushing rings 10, so that a pair of mutually parallel arranged counter-rotating crushing rollers, equipped with the having uniformly distributed array of refractive element nubs 12 has a good Guteinzugs , that is also able to effectively dissolve in the bulk bed of the hot cement clinker contained Glühnester and produce a crushed material with uniform particle size distribution, whereby the cooling efficiency increases during the cooling of the cement clinker and the subsequent grinding of cement clinker is made uniform.
  • the crushing elements (12) may, for. b. along the generatrices of the crushing rings (10) be arranged evenly spaced, and adjacent rows of crushing elements may be arranged offset to each other so that the field of uniformly distributed over the circumference and the length of the crushing rollers crushing elements formed.
  • the refractive element nubs 12 may instead of a cylindrical configuration also z. B. have a conical or polygonal configuration.
  • the material of the protruding studs 12 is more resistant to wear than the material of the crushing ring body.
  • the studs may be 12 hard metal pins, which are firmly connected by composite casting with the crushing ring body or by welding on the crushing ring body or by inserting into corresponding recesses of the crushing ring body with this.
  • the crushing elements projecting from the cylindrical outer side of the crushing rings 10 can also have the shape of webs 13 lying parallel to the crushing ring rotational axis, which are in turn distributed uniformly both over the circumference and over the width of all crushing rings 10.
  • the rotationally fixed connection between the crushing rings 10 and the associated support tube by means of the axially parallel passageway 1 1 or grooves ensured that after juxtaposition of all pushed onto a support tube crushing rings 10 the Field of uniformly distributed arranged by the crushing rings 10 webs 13 is formed.
  • the breaking elements 12, 13 projecting from the crushing rings 10 can each also be in two parts, namely consist of a radially inner part and a radially outer part of more wear-resistant material, wherein the radially outer part can also have the shape of a cap.
  • Fig. 1 Area of the diameter of the studs 12 about 15 to 50 mm, their distances from each other about 30 to 70 mm and the height about 20 mm.
  • Fig. 3 Area of the width of the webs 13 about 15 to 50 mm, range of the length of the webs 13 about 50 to 200 mm and the height about 20 mm.

Abstract

The aim of the invention is to provide a roll crusher for a grate cooler for cooling hot bulk material, in particular hot cement clinker, comprising several parallel crusher rolls. Said rolls are driven in opposite directions and comprise respective rotatably mounted axle tube rolls, onto each of which a large number of crusher rings (10) that can be connected to the axle tube can be pushed. According to the invention, the crusher rings (10) are configured in such a way that crusher elements (12, 13) project from the cylindrical outer face of the crusher rings (10), said elements being uniformly distributed both over the periphery and over the width of the crusher rings (10).

Description

Walzenbrecher zum Brechen von heißem Zementklinker Roll crusher for breaking hot cement clinker
B E S C H R E I B U N GDESCRIPTION
Die Erfindung betrifft einen Walzenbrecher zum Brechen von heißem Schüttgut wie z. B. von aus einem Brennofen ausgetragenen Zementklinker, mit wenigstens zwei zueinander parallel angeordneten gegenläufig angetriebenen Brechwalzen, die ein drehbar gelagertes Trag- röhr aufweisen, auf das jeweils eine Vielzahl mit dem Tragrohr drehfest zu verbindender Brechringe aufschiebbar ist, deren Außenoberflächen Brechelemente aufweisen.The invention relates to a roll crusher for breaking hot bulk material such. B. from a kiln discharged cement clinker, with at least two mutually parallel oppositely driven crushing rollers, which have a rotatably mounted support tube, on each of which a plurality of the support tube rotatably connected to crushing rings can be pushed, the outer surfaces have refractive elements.
Bei einer Zementklinkerproduktionslinie wird der in einem Drehrohr- ofen aus calciniertem Zementrohmehl erbrannte glühend heiße Zementklinker aus dem Ofenaustragsende auf einen Kühler, heute meistens auf den Kühlrost eines Rostkühlers abgeworfen, auf diesem verteilt und durch geeignete Fördertechnologien in Längsrichtung zum Kühleraustragsende bewegt, wobei gleichzeitig der Kühlrost und die heiße Schüttgutschicht quer zur Förderrichtung im wesentlichen von unten nach oben von Kühlluftdurchströmungen durchsetzt werden. Dabei hat es sich als vorteilhaft herausgestellt, wenn der zum Zusammenbacken neigende heiße Zementklinker eine möglichst gleichmäßige Stückgröße und gleichmäßige Korngrößenverteilung aufweist. Daher ist es bereits bekannt, bei einem Rostkühler im Bereich einer Kühlroststufe als sogenannten Zwischenbrecher einen Walzenbrecher mit mehreren parallel angeordneten gegenläufig rotierbaren Brechwalzen anzuordnen, die sich über die gesamte Breite des Rostkühlers erstrecken und welche die Aufgabe haben, insbe- sondere die großen Klinkerstücke zu zerkleinern, die sich dann nach Durchgang durch die Walzenspalte im anschließenden Rostkühlerbereich weiter abkühlen lassen, siehe z. B. Broschüre 7-33Oe der KHD Humboldt Wedag AG vom Oktober 1994, Seite 4. Auch am Klinke- raustragsende eines Rostkühlers im Gutauslaufschacht angeordnete Klinkerbrecher in Gestalt derartiger Mehrwalzenbrecher sind bekannt.In a cement clinker production line burned in a rotary kiln of calcined cement raw meal burnt hot cement clinker from the Ofenaustragsende on a radiator, today mostly on the cooling rack of a grate cooler, distributed on this and moved by suitable conveyor technologies in the longitudinal direction to Kühleraustragsende, at the same time the cooling grate and the hot bulk material layer are traversed transversely to the conveying direction substantially from bottom to top of cooling air flows. It has been found to be advantageous if the tendency to cake hot cement clinker as uniform as possible piece size and uniform particle size distribution. Therefore, it is already known to arrange a roll crusher with a plurality of parallel oppositely rotatable crushing rollers in a grate cooler in the region of a cooling grate as a so-called intermediate crusher, which extend over the entire width of the grate cooler and which have the task, in particular the large clinker pieces to crush who then follow suit Allow passage through the nips in the subsequent grate cooler area to cool further, see, for example, US Pat. B. Brochure 7-33Oe of KHD Humboldt Wedag AG dated October 1994, page 4. Also on the ratchet outlet end of a grate cooler arranged in the Gutauslaufschacht clinker breakers in the form of such multi-roll crushers are known.
Bei solchen Walzenbrechern zum Brechen von heißem Zementklinker sind die Walzenoberflächen hohen mechanischen und thermischen Beanspruchungen ausgesetzt. Es ist daher z. B. aus der EP 1 495 812 A1 ein am Gutaustragsende eines Zementklinker- Rostkühlers angeordneter Mehrwalzenbrecher bekannt, deren mehrere zueinander parallel angeordnete gegenläufig angetriebene Brechwalzen jeweils eine drehbar gelagerte Tragrohrkonstruktion aufweisen, die eine angetriebene Welle darstellt, auf die jeweils mehrere mit der Welle drehfest zu verbindende und an ihrer Außenoberfläche Brechelemente aufweisende Brechringe aufschiebbar sind, so dass im Verschleißfalle die einzelnen aufgeschobenen Brechringe einfach austauschbar sind. Bei den bekannten Brechringen sind die voneinander beabstandeten Brechelemente allerdings ausschließlich als achsparallele Profile und im übrigen in ihrer Gesamtheit ungleichmäßig über den Außenumfang der Brechringe verteilt, wodurch sich der Walzenspalt zwischen benachbarten Brechwalzen während des Brechwalzenbetriebes ständig verengt und dann wieder erweitert, was je nach Drehwinkelstellung der Brechwalzen eine ungleichmäßi- ge Zerkleinerung des Zementklinkers und eine ungleichmäßige Korngrößenverteilung des den Mehrwalzenbrecher verlassenden Aus- tragsgutes zur Folge hat, mit der weiteren Folge, dass im Mehrwalzenbrecher nicht ausreichend aufgeschlossene Klinkerstücke auch nicht ausreichend gekühlt werden können. Darüber hinaus beeinflusst ein variierendes Kornband des Zementklinkers die nachgeschaltete Mahlung negativ. Der Erfindung liegt die Aufgabe zugrunde, für einen Rostkühler zum Kühlen von heißem Schüttgut insbesondere heißem Zementlinker einen Mehrwalzenbrecher der eingangs genannten Art zu schaffen, der geeignet ist, bei gutem Guteinzugsverhalten und hoher Standzeit der ringförmigen Brechwerkzeuge die vom Drehrohrofen ausgetragenen Zementklinkerbrocken auf einigermaßen gleiche Stückgrößen zu zerkleinern und eine gleichmäßige Korngrößenverteilung im aufgeschlossenen Kühlgut als Voraussetzung für einen hohen Kühlerwirkungsgrad und für eine gleichmäßigere nachgeschaltete Mahlung zu erzielen.In such roll crushers for breaking hot cement clinker, the roll surfaces are exposed to high mechanical and thermal stresses. It is therefore z. B. from EP 1 495 812 A1 a arranged at the Gutaustragsende a cement clinker grate cooler Mehrwalzenbrecher known, each having a plurality of parallel opposing driven crushing rollers each having a rotatably mounted support tube construction, which represents a driven shaft, on each of which a plurality of rotatable with the shaft connecting and having on its outer surface refractive elements crushing rings are pushed, so that in the case of wear, the individual deferred crushing rings are easily interchangeable. In the known crushing rings, the spaced-apart crushing elements, however, are distributed only as axially parallel profiles and otherwise in their entirety unevenly over the outer circumference of the crushing rings, whereby the nip between adjacent crushing rollers during the crushing roller operation constantly narrows and then widened again, depending on the angular position of the Crushing rollers an uneven crushing of the cement clinker and an uneven particle size distribution of the multi-roll crusher leaving load has entailed, with the further consequence that in the multi-roll crusher insufficiently digested clinker pieces can not be sufficiently cooled. In addition, a varying grain size of the cement clinker negatively affects the downstream grinding. The invention has for its object to provide a multi-roll crusher of the type mentioned for a grate cooler for cooling hot bulk material in particular hot cement linker, which is suitable for good Guteinzugsverhalten and long service life of the annular crushing tools discharged from the rotary kiln cement clinker dry to reasonably equal piece sizes crushing and to achieve a uniform particle size distribution in the digested refrigerated goods as a prerequisite for a high cooler efficiency and for a more uniform downstream grinding.
Diese Aufgabe wird gemäß der Erfindung mit einem Walzenbrecher mit den Merkmalen des Anspruchs 1 gelöst. Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen angegeben.This object is achieved according to the invention with a roll crusher having the features of claim 1. Advantageous developments of the invention are specified in the subclaims.
Dadurch, dass beim erfindungsgemäßen einem Klinkerkühler zugeordneten Walzenbrecher als Brechwerkzeuge dienende auswechselbare Brechringe eingesetzt werden, von deren zylindrischer Außenseite Brechelemente vorspringen, die sowohl über den Umfang als auch über die Breite der Brechringkörper gleichmäßig verteilt bzw. gleichmäßig voneinander beabstandet angeordnet sind, werden die Aufgabegutmaterialien für die Brechwalzen einschließlich der in der heißen Klinkerschicht enthaltenen Glühnester von den Brechelementen der rotierenden Brechwalzen gleichmäßig aufgeschlossen, was eine gleichmäßige Korngrößenverteilung im Brecheraustragsgut und damit eine effektive Klinkerkühlung zur Folge hat. Außerdem vermitteln die gleichmäßig über die zylindrische Außenseite der Brechringkörper verteilt angeordneten vorspringenden Brechelemente die Funktion auswechselbarer Einzugshilfen für das zu brechende Gut in den jeweiligen Walzenspalt. Nach einem weiteren Merkmal der Erfindung können die von der zylindrischen Außenseite der Brechringkörper vorspringenden Brechelemente die Gestalt von Noppen haben, z. B. zylindrische Noppen, kegelförmige Noppen, Vielecknoppen etc.. Alternativ dazu können die Brechelemente aber auch die Gestalt von parallel zur Brechringachse liegenden Stegen haben.Due to the fact that interchangeable crushing rings serving as crushers are used in the roller crusher associated with a clinker cooler according to the invention, and from the cylindrical outer side of which projecting refractive elements are distributed evenly over the circumference as well as across the width of the crushing ring bodies or uniformly spaced from each other, the feed materials for the crushing rollers including the Glühnester contained in the hot clinker layer of the crushing elements of the rotating crushing rollers uniformly digested, which has a uniform particle size distribution in Brecheraustragsgut and thus an effective clinker cooling result. In addition, the evenly distributed over the cylindrical outer side of the crushing ring arranged arranged breaking elements convey the function interchangeable catchment aids for the material to be crushed in the respective nip. According to a further feature of the invention, the projecting from the cylindrical outer side of the crushing ring crushing elements may have the shape of nubs, z. As cylindrical studs, conical nubs, polygons, etc. Alternatively, the refractive elements but also have the shape of lying parallel to the Brechringachse webs.
Mit besonderem Vorteil kann der Werkstoff der vorspringenden Brechelemente verschleißbeständiger sein als der Werkstoff des ins- besondere aus Metallguss bestehenden Brechringkörpers, der die Brechelemente trägt. So kann der Werkstoff der Brechelemente z. B. aus Hartmetall bestehen, z. B. aus Sinterhartmetall. Die kompletten Brechringe mit den vorspringenden Brechelementen können durch Verbundguss oder durch Aufschweißung der harten Brechelemente auf die Brechringkörper oder durch Einsetzen der harten Brechelemente in entsprechende Ausnehmungen wie Bohrungen, Nuten etc. der Brechringkörper hergestellt sein.With particular advantage, the material of the projecting refractive elements can be more resistant to wear than the material of the crushing body, which consists in particular of cast metal and carries the refractive elements. Thus, the material of the refractive elements z. B. made of carbide, z. B. of cemented carbide. The complete crushing rings with the projecting crushing elements can be produced by composite casting or by welding the hard crushing elements on the crushing rings or by inserting the hard crushing elements into corresponding recesses such as holes, grooves, etc. of the crushing rings.
Die Erfindung und deren weitere Merkmale und Vorteile werden an- hand der in den Figuren schematisch dargestellten Ausführungsbeispiele näher erläutert.The invention and its further features and advantages will be explained in more detail with reference to the exemplary embodiments schematically illustrated in the figures.
Es zeigt:It shows:
Fig. 1 : die perspektivische Ansicht einer ersten Ausführungsform eines Brechrings für die Walzen des erfindungsgemäßen Walzenbrechers,1 is a perspective view of a first embodiment of a crushing ring for the rolls of the roll crusher according to the invention,
Fig. 2: in vergrößerter Darstellung eine Stirnansicht auf den Brechring der Figur 1 , und Fig. 3: die perspektivische Ansicht einer zweiten Ausführungsform eines erfindungsgemäßen Brechrings.Fig. 2: an enlarged view of an end view of the crushing ring of Figure 1, and 3 shows the perspective view of a second embodiment of a breaking ring according to the invention.
Beim erfindungsgemäßen Walzenbrecher, der einem Zementklinker- kühler zugeordnet ist, sind mehrere Brechwalzen, z. B. 5 oder 6 Brechwalzen parallel nebeneinander angeordnet, die sich über die gesamte Kühlerbreite quer zur Kühlerförderrichtung erstrecken und die in ihrer Mehrzahl gegenläufig angetrieben sind. Dabei weisen die Brechwalzen jeweils ein in der Zeichnung nicht dargestelltes drehbar gelagertes Tragrohr auf, auf das jeweils mehrere mit dem Tragrohr drehfest zu verbindende Brechringe aufschiebbar sind, deren Außenoberfläche vorspringende Brechelemente aufweist. Das heißt auf das Tragrohr jeder der parallel nebeneinander angeordneten Brechwalzen ist jeweils eine Vielzahl von Brechringen auswechselbar aufgescho- ben, von denen in Figur 1 der Brechring 10 dargestellt ist, der, wie auch die übrigen Brechringe, über an der Innenseite angeordnete Nuten 1 1 drehfest mit dem nicht dargestellten Tragrohr zu verbinden ist.When roll crusher invention, which is associated with a cement clinker cooler, more crushing rollers, z. B. 5 or 6 crushing rollers arranged side by side in parallel, which extend across the entire radiator width transverse to the radiator conveying direction and which are driven in opposite directions in their majority. In this case, the crushing rollers each have a non-illustrated in the drawing rotatably mounted support tube, on each of which a plurality of break-in rings to be connected to the support tube to be connected are pushed, the outer surface having projecting refractive elements. That is, on the support tube of each of the parallel juxtaposed crushing rollers a multiplicity of breaking rings are interchangeable shoved ben, of which in Figure 1, the crushing ring 10 is shown, which rotatably, as well as the other breaking rings, arranged on the inside grooves 1 1 To connect with the support tube, not shown.
Die Außenseite des Brechrings 10 sowie sämtlicher auf das zugehö- rige mit Drehantrieb versehene Tragrohr aufgeschobenen Brechringe ist zylindrisch. Wie aus der perspektivischen Darstellung der Figur 1 klar hervorgeht, springen von der zylindrischen Außenseite des Brechrings 10 Brechelemente in Gestalt von beispielsweise zylindrischen Noppen 12 vor, die sowohl über den Umfang als auch über die Breite des Brechrings 10 gleichmäßig verteilt angeordnet sind. Diese gleichmäßige Verteilung bzw. Beabstandung der Vielzahl der nach Art eines Rasters angeordneten Brechelement-Noppen 12 gilt für sämtliche auf jeweils ein Tragrohr aufgeschobenen und dann unmittelbar nebeneinander angeordneten Brechringe 10, so dass ein Paar zuein- ander parallel angeordneter gegenläufig angetriebener Brechwalzen, ausgestattet mit dem gleichmäßig verteilt angeordneten Feld von Brechelement-Noppen 12 ein gutes Guteinzugsverhalten aufweist, das heißt auch in der Lage ist, im Schüttgutbett des heißen Zementklinkers enthaltene Glühnester wirkungsvoll aufzuschließen und ein Brechgut mit gleichmäßiger Korngrößenverteilung zu erzeugen, wodurch der Kühlwirkungsgrad bei der Abkühlung des Zementklinkers erhöht sowie die nachfolgende Mahlung des Zementklinkers vergleichmäßigt wird.The outer side of the crushing ring 10 as well as all the crushing rings pushed onto the associated support tube provided with rotary drive are cylindrical. As is clear from the perspective view of Figure 1, jumping from the cylindrical outer side of the crushing ring 10 before elements in the form of, for example, cylindrical knobs 12, which are arranged distributed uniformly over both the circumference and over the width of the crushing ring 10. This uniform distribution or spacing of the plurality of arranged in the manner of a grid crushing element nubs 12 applies to all pushed onto one support tube and then immediately juxtaposed crushing rings 10, so that a pair of mutually parallel arranged counter-rotating crushing rollers, equipped with the having uniformly distributed array of refractive element nubs 12 has a good Guteinzugsverhalten, that is also able to effectively dissolve in the bulk bed of the hot cement clinker contained Glühnester and produce a crushed material with uniform particle size distribution, whereby the cooling efficiency increases during the cooling of the cement clinker and the subsequent grinding of cement clinker is made uniform.
Die Brechelemente (12) können z. b. längs Mantellinien der Brechringe (10) gleichmäßig beabstandet angeordnet sein, und benachbarte Reihen von Brechelementen können auch auf Lücke so versetzt zueinander angeordnet sein, dass das Feld der gleichmäßig über den Umfang und die Länge der Brechwalzen verteilten Brechelemente entsteht.The crushing elements (12) may, for. b. along the generatrices of the crushing rings (10) be arranged evenly spaced, and adjacent rows of crushing elements may be arranged offset to each other so that the field of uniformly distributed over the circumference and the length of the crushing rollers crushing elements formed.
Die Brechelement-Noppen 12 können statt eine zylindrische Konfiguration auch z. B. eine kegelförmige oder auch vieleckige Konfiguration haben. Mit Vorteil ist der Werkstoff der vorspringenden Noppen 12 verschleißbeständiger als der Werkstoff des Brechringkörpers. So können die Noppen 12 Hartmetallstifte sein, die durch Verbundguss mit dem Brechringkörper oder durch Aufschweißung auf den Brechringkörper oder durch Einsetzen in entsprechende Ausnehmungen des Brechringkörpers mit diesem fest verbunden sind.The refractive element nubs 12 may instead of a cylindrical configuration also z. B. have a conical or polygonal configuration. Advantageously, the material of the protruding studs 12 is more resistant to wear than the material of the crushing ring body. Thus, the studs may be 12 hard metal pins, which are firmly connected by composite casting with the crushing ring body or by welding on the crushing ring body or by inserting into corresponding recesses of the crushing ring body with this.
Nach dem Ausführungsbeispiel der Figur 3 können die von der zylind- rischen Außenseite der Brechringe 10 vorspringenden Brechelemente auch die Gestalt von parallel zur Brechringdrehachse liegenden Stegen 13 haben, die wiederum sowohl über den Umfang als auch über die Breite aller Brechringe 10 gleichmäßig verteilt angeordnet sind. Auch hier ist infolge der drehfesten Verbindung zwischen den Brech- ringen 10 und dem zugehörigen Tragrohr vermittels der achsparallelen Durchgangsnut 1 1 bzw. Nuten sichergestellt, dass nach Aneinanderreihung aller auf ein Tragrohr aufgeschobenen Brechringe 10 das Feld der gleichmäßig verteilt angeordneten von den Brechringen 10 vorspringenden Stegen 13 entsteht.According to the embodiment of FIG. 3, the crushing elements projecting from the cylindrical outer side of the crushing rings 10 can also have the shape of webs 13 lying parallel to the crushing ring rotational axis, which are in turn distributed uniformly both over the circumference and over the width of all crushing rings 10. Here, too, due to the rotationally fixed connection between the crushing rings 10 and the associated support tube by means of the axially parallel passageway 1 1 or grooves ensured that after juxtaposition of all pushed onto a support tube crushing rings 10 the Field of uniformly distributed arranged by the crushing rings 10 webs 13 is formed.
Die von den Brechringen 10 vorspringenden Brechelemente 12, 13 können jeweils auch zweiteilig sein, nämlich aus einem radial inneren Teil und einem radial äußeren Teil verschleißbeständigeren Werkstoffs bestehen, wobei das radial äußere Teil auch die Gestalt einer Kappe aufweisen kann.The breaking elements 12, 13 projecting from the crushing rings 10 can each also be in two parts, namely consist of a radially inner part and a radially outer part of more wear-resistant material, wherein the radially outer part can also have the shape of a cap.
Zahlenbeispiele zu Fig. 1 : Bereich der Durchmesser der Noppen 12 etwa 15 bis 50 mm, deren Abstände voneinander etwa 30 bis 70 mm und deren Höhe etwa 20 mm. Zu Fig. 3: Bereich der Breite der Stege 13 etwa 15 bis 50 mm, Bereich der Länge der Stege 13 etwa 50 bis 200 mm und deren Höhe etwa 20 mm. Number examples for Fig. 1: Area of the diameter of the studs 12 about 15 to 50 mm, their distances from each other about 30 to 70 mm and the height about 20 mm. For Fig. 3: Area of the width of the webs 13 about 15 to 50 mm, range of the length of the webs 13 about 50 to 200 mm and the height about 20 mm.

Claims

Walzenbrecher zum Brechen von heißem ZementklinkerA N S P R Ü C H E Roll crusher for breaking hot cement clinker A NSPR Ü CHE
1. Walzenbrecher zum Brechen von heißem Schüttgut wie z. B. von aus einem Brennofen ausgetragenen Zementklinker, mit wenigstens zwei zueinander parallel angeordneten gegenläufig angetriebenen Brechwalzen, die ein drehbar gelagertes Tragrohr aufweisen, auf das jeweils eine Vielzahl mit dem Tragrohr drehfest zu verbindender Brechringe (10) aufschiebbar ist, deren Außenoberflächen Brechelemente aufweisen, gekennzeichnet durch folgende Merkmale: a) die Außenseite der Brechringe (10) ist zylindrisch,1. roll crusher for breaking hot bulk such. B. of discharged from a kiln cement clinker, with at least two mutually parallel oppositely driven crushing rollers having a rotatably mounted support tube on which a plurality of the support tube rotatably connected to crushing rings (10) can be pushed, the outer surfaces have refractive elements characterized by the following features: a) the outside of the crushing rings (10) is cylindrical,
b) von der zylindrischen Außenseite der Brechringe (10) springen die Brechelemente (12, 13) vor, die sowohl über den Umfang als auch über die Breite der Brechringe gleichmäßig verteilt angeordnet sind.b) from the cylindrical outer side of the crushing rings (10) project the breaking elements (12, 13), which are arranged distributed uniformly both over the circumference and over the width of the crushing rings.
2. Walzenbrecher nach Anspruch 1 , dadurch gekennzeichnet, dass die Brechelemente die Gestalt von Noppen (12) haben.2. roll crusher according to claim 1, characterized in that the crushing elements have the shape of nubs (12).
3. Walzenbrecher nach Anspruch 1 , dadurch gekennzeichnet, dass die Brechelemente die Gestalt von parallel zur Brechringdrehachse liegenden Stegen (13) haben. 3. roll crusher according to claim 1, characterized in that the crushing elements have the shape of lying parallel to Brechringedrehachse webs (13).
4. Walzenbrecher nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der Werkstoff der vorspringenden Brechelemente (12, 13) verschleißbeständiger ist als der Werkstoff des Brechringkörpers (10).4. roll crusher according to one of claims 1 to 3, characterized in that the material of the projecting crushing elements (12, 13) is more resistant to wear than the material of the Brechringkörpers (10).
5. Walzenbrecher nach Anspruch 4, dadurch gekennzeichnet, dass die Brechringe (10), das heißt die Brechringkörper mit den vorspringenden Brechelementen (12, 13) durch Verbundguss oder durch Aufschweißung der Brechelemente (12, 13) auf die Brechringkörper oder durch Einsetzen der Brechelemente (12, 13) in entsprechende Ausnehmungen der Brechringkörper hergestellt sind.5. roll crusher according to claim 4, characterized in that the crushing rings (10), that is, the crushing rings with the projecting crushing elements (12, 13) by composite casting or by welding the crushing elements (12, 13) on the crushing rings or by inserting the crushing elements (12, 13) are made in corresponding recesses of the crushing rings.
6. Walzenbrecher nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Brechelemente (12, 13) jeweils zweiteilig zusammengesetzt sind, nämlich aus einem radial inneren Teil und einem radial äußeren Teil verschleißbeständigeren Werkstoffs bestehen. 6. roll crusher according to one of claims 1 to 5, characterized in that the crushing elements (12, 13) are each composed of two parts, namely consist of a radially inner part and a radially outer part wear-resistant material.
EP06762006.2A 2005-06-16 2006-06-10 Roll crusher for crushing hot cement clinker Not-in-force EP1899070B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005027729A DE102005027729A1 (en) 2005-06-16 2005-06-16 Roll crusher for breaking hot cement clinker
PCT/EP2006/005583 WO2006133870A1 (en) 2005-06-16 2006-06-10 Roll crusher for crushing hot cement clinker

Publications (2)

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EP1899070A1 true EP1899070A1 (en) 2008-03-19
EP1899070B1 EP1899070B1 (en) 2014-03-12

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EP06762006.2A Not-in-force EP1899070B1 (en) 2005-06-16 2006-06-10 Roll crusher for crushing hot cement clinker

Country Status (8)

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US (1) US8240589B2 (en)
EP (1) EP1899070B1 (en)
CN (1) CN101218033A (en)
CA (1) CA2612294A1 (en)
DE (1) DE102005027729A1 (en)
DK (1) DK1899070T3 (en)
RU (1) RU2007145808A (en)
WO (1) WO2006133870A1 (en)

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Also Published As

Publication number Publication date
DK1899070T3 (en) 2014-06-16
EP1899070B1 (en) 2014-03-12
CN101218033A (en) 2008-07-09
DE102005027729A1 (en) 2006-12-28
US20080265073A1 (en) 2008-10-30
WO2006133870A1 (en) 2006-12-21
RU2007145808A (en) 2009-07-27
US8240589B2 (en) 2012-08-14
CA2612294A1 (en) 2006-12-21

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