EP1984115B1 - Multiroller crusher - Google Patents
Multiroller crusher Download PDFInfo
- Publication number
- EP1984115B1 EP1984115B1 EP07700215A EP07700215A EP1984115B1 EP 1984115 B1 EP1984115 B1 EP 1984115B1 EP 07700215 A EP07700215 A EP 07700215A EP 07700215 A EP07700215 A EP 07700215A EP 1984115 B1 EP1984115 B1 EP 1984115B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- crusher
- multiroller
- crushing
- crushing rollers
- gap
- 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.)
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- 239000000463 material Substances 0.000 claims abstract description 29
- 239000003245 coal Substances 0.000 claims abstract description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 4
- 239000011707 mineral Substances 0.000 claims abstract description 4
- 239000003027 oil sand Substances 0.000 claims abstract description 3
- 230000036346 tooth eruption Effects 0.000 claims description 17
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 239000000969 carrier Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 229910001570 bauxite Inorganic materials 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- -1 ore Substances 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
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
-
- 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
Definitions
- the invention relates to a multi-roll crusher according to the preamble of claim 1.
- Such multi-roll crushers serve in particular as crushers for crushing mineral crushed material, in particular coal, ore, stone, natural stone, bauxite, marl, clay, oil sand or similar materials. These crushers are intended to bring the material, which arrives with a particle size of up to about 150 mm, to a particle size of generally ⁇ 50 mm. It is important in the comminution of coal, in particular, that it is not or only slightly compressed during the breaking process and essentially maintains its internal structure.
- the state of the art belongs to the DE 199 04 867 A1 a device for crushing mineral crushing material with two crushing rollers, wherein the breaking process between the crushing rollers and provided with crushing organs opposite walls of the crusher housing is carried out. There is no breaking process between the two crushing rollers, which rotate in opposite directions.
- the invention is based on the object to propose a multi-roll crusher of the generic type, in which substantially without compression and preferably by shearing the material crushed and in the smallest possible crusher space and the lowest possible machine wear a high throughput is achieved.
- the connecting line (V) of the axes of rotation (R) has at least one bend and over the entire width of the crusher space due to the changing directions of rotation of the crusher rolls in each case one working gap (A) and one empty gap (L) alternate.
- the kink causes either with the same distance of the axes of rotation (R), the total width (B) of the crusher space in which the crushing rollers are arranged parallel to each other, can be reduced or that with the same width of the crusher space possibly more crushing rollers can be accommodated and thus the throughput per total width of the crusher space is increased.
- Arrangement and size of the buckling are chosen so that the smallest possible deflection of the crushed material on its way from the feed opening of the crusher to the passage through the working gap of the wear of crushing tools and crushers is minimized.
- the crushing rollers have uniformly or non-uniformly distributed on the circumference crushing or cutting teeth of the same or unequal tooth height and / or tooth shape, which preferably cooperate with cutting elements which are arranged at the top and / or laterally in the upper part of an anvil bar, preferably height adjustable and / or is spring-mounted in the vertical direction.
- the cutting elements can preferably be arranged on the anvil strip on itself over the entire length of the crushing rollers extending strips, the cutting teeth can engage the crushing rollers in tooth spaces of the strip.
- the multi-roll crusher according to the invention can also be embodied without an in-edge strip or without a cutting element.
- the entire material is comminuted when passing through the working gap between the two crushing rollers or between a crushing roller and crushing teeth on the wall side, wherein the adjustable and / or resilient mounting of the anvil bar prevents interference caused by excessively large or too hard chunks of material.
- the adjustable and / or resilient mounting of the anvil bar prevents interference caused by excessively large or too hard chunks of material.
- To adjust the grain size of the product and the working gap can be adjusted by changing the axial distance of the crushing rollers and / or by changing the distance of the anvil bar.
- According to the required particle size of the product and the cutting teeth of two adjacent crushing rollers can be arranged angularly offset on the roll circumference.
- a working gap and an empty gap alternate over the entire width of the breaker space due to the changing directions of rotation of the breaker rolls.
- the material is essentially conveyed from top to bottom or obliquely down and thereby crushed.
- the gap width of the empty gap is less than or equal to the working gap.
- the cutting teeth of the adjacent crushing rollers can be arranged angularly offset and, if necessary, their peripheral speed synchronized so that the distance between the two rollers can be reduced without teeth of these rollers touching each other.
- the connecting line between the axes of rotation of two adjacent crushing rollers in the region of a working gap horizontally or slightly inclined at an angle ⁇ of up to 30 ° to the horizontal.
- the connecting line in the region of an empty gap can have an angle ⁇ of up to 90 or 75 °, preferably 30 to 60 ° to the horizontal.
- Large angles ⁇ can be advantageous, in particular in the case of crushing rollers of different diameters adjacent to the empty gap.
- the angle should be ⁇ ⁇ the angle ⁇ .
- each case two crushing rollers, which form an empty gap between them, as a structural unit on a rocker pivotally and / or displaceably mounted on the housing of the multi-roll crusher.
- This rocker preferably includes right and left outside of the crusher housing arranged and mounted roll carrier, wherein the axes or waves of the associated crusher rollers can be passed through suitable slots of the crusher housing.
- the two belonging to a pair of rollers roller carrier of a rocker can be pivoted together in each case about a parallel to the axes of rotation of the crushing rollers arranged rotational axis, wherein preferably the pivoting of the rocker by a adjustable stop is limited and acts on the rocker a preferably preloaded spring in the direction of a stop.
- FIGS. 1 to 4 are crushing rollers 1, 1 '2, 2' shown as smooth cylindrical rollers, being readily on the circumference of the rollers, as in the Fig. 8 to 13 represented, crushing or cutting teeth 4 may be present.
- no breaking or cutting teeth 4 were drawn for the sake of simplicity.
- the breaking or cutting teeth 4 are particularly useful if, under the working gaps A, A 'in each case over the entire length of the crushing rollers extending anvil strip 3 and outer crushing teeth 14 are present.
- the anvil strip 3 can accordingly Fig.
- the anvil strip 3 as shown in FIG Fig. 7 Apart from the cutting bar 7 also have cutting elements 5 at the top and also cutting elements 6 in the lateral upper area.
- the entire anvil strip is preferably vertical or according to their inclination (see, eg Fig. 2 . 6 . 12 and 13 ) adjustable in the transport direction of the material and in particular resiliently mounted on springs 8.
- outer crushing teeth 14 may be arranged, which cooperate with the crushing or cutting teeth 4 on the adjacent crushing rollers 1 ', 2'. These outer crushing teeth 14 may be similar to the anvil strip 3 adjustable and resiliently mounted.
- Fig. 1 can explain the simplest embodiment of the multi-roll crusher according to the invention.
- the dotted straight line V connects the axes of rotation R of the two crushing rollers 1 and 2 and the axes of rotation R of the crushing roller 2 with the deeper crushing roller 1 '.
- the defined in claim 1 according to the invention kink in the connecting line V is therefore present at the axis of rotation R of the crushing roller 2.
- the connecting line V is extended horizontally up to the walls 12, 13.
- the working gap A (see. Fig. 3 ) having the gap width a defined in the direction of the connecting line V.
- the marginal crushing rollers 1 ', 2' and the outer crushing teeth 14 are each the working gap A '(see. Fig. 3 ), with the gap width a '.
- the sum of the gap widths a and a 'on the total width B of the crusher space is the decisive measure of the throughput of the multi-roll crusher. The point here is to maximize the sum of these gap widths a, a 'on the total width B.
- the second decisive measure are the gap widths I and I 'which also extend in the direction of the connecting line V in the region of the empty column L, L' (cf. Fig. 2 and 3 ).
- the empty gap L is here as the gap between two "internal" crushing rollers 1, 2 or 1, 2 'or 2, I', while the blank gap L ', the gap between the edge-side crushing rollers 1, 2 and the wall 12, 13, on which no outer crushing teeth 14 are arranged.
- the breaking or cutting teeth 4 move downwards in the region of a working gap A, A ', so that the material introduced above the crushing rolls is moved from top to bottom through the working gap A, A'.
- the breaking or cutting teeth move upwards so that larger material arriving from above is normally stopped or transported to the next working gap A, A'.
- the gap width I, I 'in the region of an empty gap L, L' can be chosen so small that the crushing or cutting teeth 4 can be moved past each other with the shortest possible distance.
- the gap widths I, I ' are in any case smaller than or equal to the gap widths a, a'.
- the gap width I, I ' have a certain minimum, so that the resulting fine grain can also freely through the blank gap L, L' trickle down.
- the crushing rollers are to be arranged offset from one another in the vertical direction and pushed together in the horizontal direction to achieve the lowest possible overall width B, wherein the required gap widths a, a ', I, I' are maintained and the deflection of the material flow in the crusher space is minimized becomes.
- the respective width required in the horizontal direction in the crusher space decreases considerably.
- the angle ⁇ can be up to 30 ° to the horizontal, while the angle ⁇ up to 90 ° or 75 °, preferably between 30 and 60 ° can be.
- Fig. 1 could the crushing roller 1 'also be arranged above the other two crushing rollers 1 and 2.
- the middle crushing roller 2 could lie in a lower position between the two crushing rollers 1, 1 '.
- FIGS. 3 and 4 are preferred versions, each with four crushing rollers 1, 2, 1 ', 2' shown, because there is a total of a working gap A and two working gaps A 'are present.
- Fig. 4 carry the side walls 12, 13 outer crushing teeth 14, which in Fig. 3 are not available.
- FIGS. 8 to 13 In each case eight crushing rollers are shown in a crusher space, with three middle working gaps A and in each case additionally a working gap A 'on the walls 12, 13 are present.
- the task direction of the material from above and the further transport after the breaking process is indicated in these figures by dashed arrows.
- FIGS. 9 to 13 are each two adjacent crushing rollers, which have an empty gap L between them, summarized by a rocker 11 to form a structural unit.
- the rocker 11 preferably contains and supports roller carriers 11, 11 "arranged and mounted on the outside of the housing on the right and on the left ..
- the rotation axes R of the associated crushing rollers are guided through slots in the housing (not shown) is pressed against this stop by the prestressed spring 16.
- This resilient mounting of the assembly has the advantage that when seizure of too hard or non-breakable materials, the rocker is moved about the axis of rotation 15 against the spring 16, so that the two associated working gaps A, A 'at the same time by essentially the same extent can open automatically. Once the obstacle is eliminated, the rocker 11 is pivoted back to the starting position by means of the spring 16.
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
- Crushing And Pulverization Processes (AREA)
Abstract
Description
Die Erfindung bezieht sich auf einen Mehrwalzenbrecher gemäß Oberbegriff des Anspruches 1.The invention relates to a multi-roll crusher according to the preamble of
Derartige Mehrwalzenbrecher dienen insbesondere als Brecher zur Zerkleinerung mineralischen Brechgutes, wie insbesondere Kohle, Erz, Stein, Naturstein, Bauxit, Mergel, Ton, Ölsand oder ähnlicher Materialien. Diese Brecher sollen dabei das Material, das mit einer Korngröße von bis zu ca. 150 mm ankommt auf eine Korngröße von in der Regel < 50 mm bringen. Wichtig ist bei der Zerkleinerung insbesondere von Kohle, dass diese bei dem Brechvorgang nicht oder nur wenig komprimiert wird und im Wesentlichen ihre innere Struktur beibehalten bleibt.Such multi-roll crushers serve in particular as crushers for crushing mineral crushed material, in particular coal, ore, stone, natural stone, bauxite, marl, clay, oil sand or similar materials. These crushers are intended to bring the material, which arrives with a particle size of up to about 150 mm, to a particle size of generally <50 mm. It is important in the comminution of coal, in particular, that it is not or only slightly compressed during the breaking process and essentially maintains its internal structure.
Zum Stand der Technik gehört nach der
Aus der
In der
Aus der
Der Erfindung liegt die Aufgabe zu Grunde, einen Mehrwalzenbrecher der gattungsgemäßen Art vorzuschlagen, bei dem im Wesentlichen ohne Komprimieren und bevorzugt durch Schervorgänge das Material zerkleinert und bei dem auf möglichst kleinem Brecherraum und bei möglichst geringem Maschinenverschleiß eine hohe Durchsatzleistung erreicht wird.The invention is based on the object to propose a multi-roll crusher of the generic type, in which substantially without compression and preferably by shearing the material crushed and in the smallest possible crusher space and the lowest possible machine wear a high throughput is achieved.
Die Lösung dieser Aufgabe ist im Patentanspruch 1 angegeben. Die Unteransprüche 2 bis 19 enthalten sinnvolle Ausführungsformen dazu.The solution of this problem is specified in
Bei dem erfindungsgemäßen Mehrwalzenbrecher mit mindestens drei Brechwalzen in einem Brecherraum ist vorgesehen, dass alle direkt benachbarten Brechwalzen entgegengesetzte Drehrichtungen besitzen, die Verbindungslinie (V) der Rotationsachsen (R) mindestens einen Knick aufweist und über die gesamte Breite des Brecherraumes aufgrund der wechselnden Drehrichtungen der Brecherwalzen jeweils ein Arbeitsspalt (A) und ein Leerspalt (L) sich abwechseln. Der Knick bewirkt, dass entweder bei gleichbleibendem Abstand der Rotationsachsen (R) die Gesamtbreite (B) des Brecherraumes, in dem die Brechwalzen parallel nebeneinander angeordnet sind, verringert werden kann oder dass bei gleichbleibender Breite des Brecherraumes eventuell mehr Brechwalzen untergebracht werden können und damit die Durchsatzleistung pro Gesamtbreite des Brecherraumes vergrößert wird. Anordnung und Größe des Knicks werden so gewählt, dass durch möglichst geringe Umlenkung des Brechgutes auf seinem Weg von der Zufuhröffnung des Brechers bis zum Durchtritt durch den Arbeitsspalt der Verschleiß von Brechwerkzeugen und Brecher minimiert wird.In the multi-roll crusher according to the invention with at least three crushing rollers in a crusher space, it is provided that all directly adjacent crushing rollers have opposite directions of rotation, the connecting line (V) of the axes of rotation (R) has at least one bend and over the entire width of the crusher space due to the changing directions of rotation of the crusher rolls in each case one working gap (A) and one empty gap (L) alternate. The kink causes either with the same distance of the axes of rotation (R), the total width (B) of the crusher space in which the crushing rollers are arranged parallel to each other, can be reduced or that with the same width of the crusher space possibly more crushing rollers can be accommodated and thus the throughput per total width of the crusher space is increased. Arrangement and size of the buckling are chosen so that the smallest possible deflection of the crushed material on its way from the feed opening of the crusher to the passage through the working gap of the wear of crushing tools and crushers is minimized.
Die Brechwalzen besitzen am Umfang gleichmäßig oder ungleichmäßig verteilt Brech- oder Schneidzähne gleicher oder ungleicher Zahnhöhe und/oder Zahnform, die vorzugsweise mit Schneidelementen zusammenwirken welche an der Spitze und/oder seitlich im oberen Bereich an einer Ambossleiste angeordnet sind, die vorzugsweise höhenverstellbar und/oder in vertikaler Richtung federnd gelagert ist. Die Schneidelemente können vorzugsweise an der Ambossleiste an sich über die gesamte Länge der Brechwalzen erstreckenden Leisten angeordnet sein, wobei die Schneidzähne an den Brechwalzen in Zahnlücken der Leiste eingreifen können. Der erfindungsgemäße Mehrwalzenbrecher kann jedoch auch ohne Ambossleiste bzw. ohne Schneidelement an diesen ausgeführt sein. Bei dem erfindungsgemäßen Mehrwalzenbrecher wird das gesamte Material beim Durchgang durch den Arbeitsspalt zwischen den beiden Brechwalzen oder zwischen einer Brechwalze und wandseitigen Brechzähnen zerkleinert, wobei die einstellbare und/oder federnde Lagerung der Ambossleiste Störungen durch zu große oder zu harte Materialbrocken verhindert. Zur Einstellung der Korngröße des Produktes kann auch der Arbeitsspalt durch Veränderung des Achsabstandes der Brechwalzen und/oder durch Veränderung des Abstandes der Ambossleiste eingestellt werden. Entsprechend der erforderlichen Korngröße des Produktes können auch die Schneidzähne zweier benachbarter Brechwalzen am Walzenumfang winkelversetzt angeordnet sein.The crushing rollers have uniformly or non-uniformly distributed on the circumference crushing or cutting teeth of the same or unequal tooth height and / or tooth shape, which preferably cooperate with cutting elements which are arranged at the top and / or laterally in the upper part of an anvil bar, preferably height adjustable and / or is spring-mounted in the vertical direction. The cutting elements can preferably be arranged on the anvil strip on itself over the entire length of the crushing rollers extending strips, the cutting teeth can engage the crushing rollers in tooth spaces of the strip. However, the multi-roll crusher according to the invention can also be embodied without an in-edge strip or without a cutting element. In the multi-roll crusher according to the invention, the entire material is comminuted when passing through the working gap between the two crushing rollers or between a crushing roller and crushing teeth on the wall side, wherein the adjustable and / or resilient mounting of the anvil bar prevents interference caused by excessively large or too hard chunks of material. To adjust the grain size of the product and the working gap can be adjusted by changing the axial distance of the crushing rollers and / or by changing the distance of the anvil bar. According to the required particle size of the product and the cutting teeth of two adjacent crushing rollers can be arranged angularly offset on the roll circumference.
Erfindungsgemäß wechseln sich über die gesamte Breite des Brecherraumes auf Grund der wechselnden Drehrichtungen der Brechwalzen jeweils ein Arbeitsspalt und ein Leerspalt ab. Durch den Arbeitsspalt wird das Material im Wesendlichen von oben nach unten oder schräg nach unten gefördert und dabei zerkleinert. ImAccording to the invention, a working gap and an empty gap alternate over the entire width of the breaker space due to the changing directions of rotation of the breaker rolls. Through the working gap, the material is essentially conveyed from top to bottom or obliquely down and thereby crushed. in the
Bereich des Leerspaltes bewegen sich die Brech- oder Schneidzähne am Umfang der Brechwalzen nach oben bzw. schräg nach oben, sodass dort keineIn the area of the empty gap, the crushing or cutting teeth move upwards or obliquely upwards at the circumference of the crushing rollers, so that there is no
Zerkleinerung des Materials stattfindet. Die Spaltweite des Leerspaltes ist kleiner oder gleich der des Arbeitsspaltes. Insbesondere im Bereich des Leerspaltes können die Schneidzähne der benachbarten Brechwalzen winkelversetzt angeordnet und bei Bedarf ihre Umfangsgeschwindigkeit synchronisiert sein, sodass der Abstand zwischen den beiden Walzen verringert werden kann, ohne dass Zähne dieser Walzen einander berühren.Comminution of the material takes place. The gap width of the empty gap is less than or equal to the working gap. In particular, in the region of the void gap, the cutting teeth of the adjacent crushing rollers can be arranged angularly offset and, if necessary, their peripheral speed synchronized so that the distance between the two rollers can be reduced without teeth of these rollers touching each other.
Um die erfindungsgemäße Verkleinerung der Breite des Brecherraumes zu erreichen, hat es sich als günstig erwiesen, dass die Verbindungslinie zwischen den Rotationsachsen zweier benachbarter Brechwalzen im Bereich eines Arbeitsspaltes horizontal oder leicht geneigt in einem Winkel α von bis zu 30° zur Horizontalen verläuft. Gleichzeitig kann die Verbindungslinie im Bereich eines Leerspaltes einen Winkel β von bis zu 90 bzw. 75°, vorzugsweise 30 bis 60° zur Horizontalen besitzen. Große Winkel β können insbesondere bei am Leerspalt benachbarten Brechwalzen unterschiedlichen Durchmessers vorteilhaft sein. Insgesamt sollte dabei der Winkel α ≤ dem Winkel β sein. Durch diese erfindungsgemäßen Neigungen der Verbindungslinie kann im Bereich des Arbeitsspaltes für die verschiedenen Materialien ein möglichst ungehinderter Materialfluss gewährleistet und gleichzeitig im Bereich eines Leerspaltes ein unerwünschtes Aufhalten des Materialflusses durch grobes Material von oberhalb des Leerspaltes verhindert werden. In jedem Fall wird man zur Verringerung der Breite des Brecherraumes versuchen, zumindest den Winkel β, abhängig von dem jeweiligen Material, möglichst groß zu machen.In order to achieve the invention reduction of the width of the crusher space, it has proved to be favorable that the connecting line between the axes of rotation of two adjacent crushing rollers in the region of a working gap horizontally or slightly inclined at an angle α of up to 30 ° to the horizontal. At the same time, the connecting line in the region of an empty gap can have an angle β of up to 90 or 75 °, preferably 30 to 60 ° to the horizontal. Large angles β can be advantageous, in particular in the case of crushing rollers of different diameters adjacent to the empty gap. Overall, the angle should be α ≤ the angle β. By means of these inclinations of the connecting line according to the invention, an unhindered flow of material can be ensured in the region of the working gap for the various materials and, at the same time in the region of an empty gap, undesired arrest of the material flow by coarse material from above the empty gap can be prevented. In any case, one will try to reduce the width of the crusher space to make at least the angle β, depending on the respective material, as large as possible.
Erfindungsgemäß wird weiterhin vorgeschlagen, jeweils zwei Brechwalzen, die einen Leerspalt zwischen sich bilden, als Baueinheit an einer am Gehäuse des Mehrwalzenbrechers drehgelenkig und/oder verschiebbar gelagerten Wippe anzuordnen. Diese Wippe beinhaltet vorzugsweise rechts und links außerhalb des Brechergehäuses angeordnete und gelagerte Walzenträger, wobei die Achsen bzw. Wellen der zugehörigen Brecherwalzen durch geeignete Schlitze des Brechergehäuses hindurch geführt werden können. Die beiden zu einem Walzenpaar gehörigen Walzenträger einer Wippe können gemeinsam jeweils um eine parallel zu den Rotationsachsen der Brechwalzen angeordnete Drehachse schwenkbar sein, wobei vorzugsweise die Schwenkbarkeit der Wippe durch einen verstellbaren Anschlag begrenzt ist und auf die Wippe eine vorzugsweise vorgespannte Feder in Richtung auf einen Anschlag wirkt. Durch diese federnde Lagerung ist es möglich, dass die Brechwalzen der beiden am betroffenen Arbeitsspalt benachbarten Wippen z.B. bei Überlast auf Grund von zu hartem oder nicht brechbarem Material ausweichen können und der Arbeitsspalt dadurch kurzzeitig vergrößert und durch die Federn wieder in seine Ausgangsstellung zurückgeführt wird.According to the invention, it is further proposed to arrange in each case two crushing rollers, which form an empty gap between them, as a structural unit on a rocker pivotally and / or displaceably mounted on the housing of the multi-roll crusher. This rocker preferably includes right and left outside of the crusher housing arranged and mounted roll carrier, wherein the axes or waves of the associated crusher rollers can be passed through suitable slots of the crusher housing. The two belonging to a pair of rollers roller carrier of a rocker can be pivoted together in each case about a parallel to the axes of rotation of the crushing rollers arranged rotational axis, wherein preferably the pivoting of the rocker by a adjustable stop is limited and acts on the rocker a preferably preloaded spring in the direction of a stop. By this resilient mounting, it is possible that the crushing rollers of the two adjacent working gap adjacent rockers can dodge, for example, overload due to too hard or non-breakable material and the working gap is thereby briefly increased and returned by the springs back to its original position.
Die Erfindung wird anhand der beigefügten
- Fig. 1 und 2
- Anordnungen von jeweils drei Brechwalzen in einem Brecherraum
- Fig. 3 und 4
- Anordnungen von vier Brechwalzen in einem Brecherraum
- Fig. 5
- eine teilweise perspektivische Darstellung einer Leiste 10
mit Schneidleiste 7 - Fig. 6
- eine Anordnung von fünf Brechwalzen in einem Brecherraum
- Fig. 7
- eine Anordnung von sechs Brechwalzen in einem Brecherraum
- Fig. 8
bis 13 - verschiedene Anordnungen von jeweils acht Brechwalzen in einem Brecherraum.
- Fig. 1 and 2
- Arrangements of three crushing rollers in a crusher space
- 3 and 4
- Arrangements of four crushing rollers in a crusher room
- Fig. 5
- a partial perspective view of a
bar 10 with cutting bar. 7 - Fig. 6
- an arrangement of five crushing rollers in a crusher space
- Fig. 7
- an arrangement of six crushing rollers in a crusher space
- Fig. 8 to 13
- various arrangements of eight crushing rollers in a crusher space.
In den
Anhand der
Erfindungsgemäß geht es darum, die Brechwalzen in vertikaler Richtung zueinander versetzt anzuordnen und in horizontaler Richtung zur Erzielung einer möglichst geringen Gesamtbreite B zusammenzuschieben, wobei jeweils die erforderlichen Spaltweiten a, a', I, I' eingehalten werden und die Umlenkung des Materialstromes im Brecherraum minimiert wird. Wie aus den Figuren ohne weiteres ersichtlich ist, verringert sich bei jeder geneigten Anordnung der Verbindungslinie V zur Horizontalen die jeweilige in horizontaler Richtung benötigte Breite im Brecherraum erheblich. Entsprechend der Zuführrichtung des Materials oberhalb der Brechwalzen zu dem jeweiligen Arbeitsspalt A, A' hat es sich gezeigt, dass der Winkel α bis zu 30° zur Horizontalen betragen kann, während der Winkel β bis zu 90° bzw. 75°, vorzugsweise zwischen 30 und 60° betragen kann.According to the invention, the crushing rollers are to be arranged offset from one another in the vertical direction and pushed together in the horizontal direction to achieve the lowest possible overall width B, wherein the required gap widths a, a ', I, I' are maintained and the deflection of the material flow in the crusher space is minimized becomes. As can be readily seen from the figures, with each inclined arrangement of the connecting line V to the horizontal, the respective width required in the horizontal direction in the crusher space decreases considerably. According to the feed direction of the material above the crushing rollers to the respective working gap A, A ', it has been found that the angle α can be up to 30 ° to the horizontal, while the angle β up to 90 ° or 75 °, preferably between 30 and 60 ° can be.
Neben den in den Figuren dargestellten bevorzugten Ausführungsformen gibt es grundsätzlich auch weitere Möglichkeiten zur versetzten Anordnung der Brechwalzen 1, 1', 2, 2'. Entspechend
In den
In Weiterführung der erfindungsgemäßen Idee besitzt der Mehrwalzenbrecher nach
Bei den
Nach den
- 1, 1'1, 1 '
- Brechwalze (rechts drehend)Crushing roller (turning right)
- 2, 2'2, 2 '
- Brechwalze (links drehend)Crushing roller (turning left)
- 33
- Ambossleisteanvil strip
- 44
-
Brech- oder Schneidzähne an 1, 2, 1', 2' (vgl.
Fig. 8 bis 13 )Breaking or cutting teeth on 1, 2, 1 ', 2' (see.Fig. 8 to 13 ) - 55
-
Schneidelement an der Spitze von 3 (vgl.
Fig. 7 )Cutting element at the top of 3 (see.Fig. 7 ) - 66
-
Schneidelement im oberen Bereich seitlich an 3 (vgl.
Fig. 7 )Cutting element in the upper area laterally at 3 (see.Fig. 7 ) - 77
-
Schneidleiste an 3 (vgl.
Fig. 7 undFig. 5 )Cutting bar at 3 (see.Fig. 7 andFig. 5 ) - 88th
-
Feder für 3 (vgl.
Fig. 7 )Spring for 3 (cf.Fig. 7 ) - 99
-
Zahnlücken in 10 (vgl.
Fig. 5 )Tooth gaps in 10 (see.Fig. 5 ) - 1010
-
Leiste (vgl.
Fig. 5 )Strip (cf.Fig. 5 ) - 1111
-
Wippe (vgl.
Fig. 9 bis 13 )Rocker (cf.Fig. 9 to 13 ) - 11', 11"11 ', 11 "
- Walzenträgerroll carriers
- 1212
- Wandwall
- 1313
- Wandwall
- 1414
- Äußere Brechzähne an 12, 13External crushing teeth at 12, 13
- 1515
- Drehachse von 11Rotation axis of 11
- 1616
- Feder an 11Spring on 11
- 1717
- Anschlag (verstellbar)Stop (adjustable)
- A, A'A, A '
- Arbeitsspaltworking gap
- BB
- Gesamtbreite des BrecherraumesTotal width of the breaker room
- L, L'L, L '
- Leerspaltempty gap
- RR
- Rotationsachse von 1, 1', 2, 2'Rotation axis of 1, 1 ', 2, 2'
- VV
- Verbindungslinie zwischen Rotationsachsen RConnecting line between axes of rotation R
- a, a'a, a '
- Spaltweite von A, A' in Richtung von VGap width of A, A 'in the direction of V
- I, I'I, I '
- Spaltweite von L, L' in Richtung von VGap width of L, L 'in the direction of V
- αα
- Winkel von V zur Horizontalen im Bereich von AAngle from V to the horizontal in the range of A
- ββ
- Winkel von V zur Horizontalen im Bereich von LAngle from V to the horizontal in the range of L
Claims (19)
- Multiroller crusher for crushing mineral material to be crushed, such as in particular coal or oil sand, in a single crushing step, having at least three crushing rollers (1, 2, 1', 2'), wherein crushing or cutting teeth (4) are disposed on the periphery of the crushing rollers (1, 2, 1', 2') and the axes of rotation (R) of the crushing rollers lie in parallel with each other and horizontally or approximately horizontally, characterised in that all immediately adjacent crushing rollers (1, 2, 1', 2') have opposing directions of rotation, the connecting line (V) of the axes of rotation (R) has at least one kink, and over the entire width of the crushing space a working gap (A) and an empty gap (L) alternate owing to the alternating directions of rotation of the crushing rollers (1, 2, 1', 2').
- Multiroller crusher as claimed in claim 1, characterised in that below the working gap (A) formed between two crushing rollers (1, 2) is disposed an anvil strip (3) extending over the whole length of the crushing rollers (1, 2).
- Multiroller crusher as claimed in claim 2, characterised in that crushing or cutting elements (5, 6, 7) are disposed on the tip and/or laterally in the upper region of the anvil strip (3) and cooperate with the crushing or cutting teeth (4) disposed on the periphery of the crushing rollers (1, 2).
- Multiroller crusher as claimed in claim 3, characterised in that the crushing or cutting elements (5, 6, 7) are disposed on the anvil strip (3) on replaceable, wholly or partially straight or comb-like strips (10).
- Multiroller crusher as claimed in claim 2, characterised in that the anvil strip (3) is mounted in a height-adjustable and/or resilient manner.
- Multiroller crusher as claimed in claim 1, characterised in that one or both outer crushing rollers (1', 2') cooperate with anvil strips or crushing teeth (14) which are mounted on the adjoining walls (12, 13) in a fixed, displaceable and/or resilient manner.
- Multiroller crusher as claimed in claim 1, characterised in that the connecting line (V) extends in the region of a working gap (A) at an angle α of up to 30° with respect to the horizontal.
- Multiroller crusher as claimed in claim 1, characterised in that the connecting line (V) extends in the region of an empty gap (L) at an angle β of up to 90° with respect to the horizontal.
- Multiroller crusher as claimed in claim 1, characterised in that the connecting line (V) extends in the region of an empty gap (L) at an angle β of up to 75° with respect to the horizontal.
- Multiroller crusher as claimed in claim 8, characterised in that the angle β is 30 to 60°.
- Multiroller crusher as claimed in claim 8 or 9, characterised in that the angle α is smaller than or equal to the angle β.
- Multiroller crusher as claimed in claim 1, characterised in that the crushing or cutting teeth (4) cooperating at a working gap (A) are disposed offset with respect to each other in the peripheral direction and/or in the axial direction of the crushing rollers (1, 2, 1', 2').
- Multiroller crusher as claimed in claim 1, characterised in that the crushing rollers (1, 2, 1', 2') consist of toothed discs lined up axially.
- Multiroller crusher as claimed in claim 1, characterised in that the length (1) of the connecting line (V) at an empty gap (L) is smaller than or equal to the length (a) of the connecting line (V) at a working gap (A).
- Multiroller crusher as claimed in claim 1, characterised in that in each case two crushing rollers (1, 2, 1', 2'), which form an empty gap (L) therebetween, are disposed as a construction unit on a rocker (11) which is mounted on the housing of the multiroller crusher in a pivoting and/or displaceable manner.
- Multiroller crusher as claimed in claim 15, characterised in that the rocker (11) can pivot about an axis of rotation (15) disposed in parallel with the axes of rotation (R) of the crushing rollers (1, 2, 1', 2').
- Multiroller crusher as claimed in claim 15 or 16, characterised in that the pivotability of the rocker (11) is limited by an adjustable stop (17).
- Multiroller crusher as claimed in claim 16, characterised in that a spring (16) acts on the rocker (11) in the direction of the stop (17).
- Multiroller crusher as claimed in claim 1, characterised in that the crushing rollers (1, 2, 1', 2') have the same or different diameters.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006005017A DE102006005017B3 (en) | 2006-02-03 | 2006-02-03 | More roll crusher |
PCT/EP2007/000188 WO2007090495A2 (en) | 2006-02-03 | 2007-01-11 | Multiroller crusher |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1984115A2 EP1984115A2 (en) | 2008-10-29 |
EP1984115B1 true EP1984115B1 (en) | 2010-11-10 |
Family
ID=37805943
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07700215A Active EP1984115B1 (en) | 2006-02-03 | 2007-01-11 | Multiroller crusher |
Country Status (8)
Country | Link |
---|---|
US (1) | US7997516B2 (en) |
EP (1) | EP1984115B1 (en) |
CN (1) | CN101370590B (en) |
AT (1) | ATE487540T1 (en) |
AU (1) | AU2007214087B2 (en) |
DE (2) | DE102006005017B3 (en) |
ES (1) | ES2354736T3 (en) |
WO (1) | WO2007090495A2 (en) |
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DE102011000019A1 (en) | 2011-01-03 | 2012-07-05 | ThyssenKrupp Fördertechnik GmbH | Mobile crushing plant |
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2006
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-
2007
- 2007-01-11 AT AT07700215T patent/ATE487540T1/en active
- 2007-01-11 CN CN2007800023904A patent/CN101370590B/en active Active
- 2007-01-11 AU AU2007214087A patent/AU2007214087B2/en active Active
- 2007-01-11 EP EP07700215A patent/EP1984115B1/en active Active
- 2007-01-11 ES ES07700215T patent/ES2354736T3/en active Active
- 2007-01-11 WO PCT/EP2007/000188 patent/WO2007090495A2/en active Application Filing
- 2007-01-11 US US12/162,813 patent/US7997516B2/en active Active
- 2007-01-11 DE DE502007005611T patent/DE502007005611D1/en active Active
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011000018A1 (en) | 2011-01-03 | 2012-07-05 | ThyssenKrupp Fördertechnik GmbH | More roll crusher |
DE102011000019A1 (en) | 2011-01-03 | 2012-07-05 | ThyssenKrupp Fördertechnik GmbH | Mobile crushing plant |
WO2012092952A1 (en) | 2011-01-03 | 2012-07-12 | ThyssenKrupp Fördertechnik GmbH | Mobile crushing unit |
WO2012092951A1 (en) | 2011-01-03 | 2012-07-12 | ThyssenKrupp Fördertechnik GmbH | Multiple roll crusher |
Also Published As
Publication number | Publication date |
---|---|
WO2007090495A3 (en) | 2007-12-13 |
DE102006005017B3 (en) | 2007-10-18 |
US20090020637A1 (en) | 2009-01-22 |
AU2007214087B2 (en) | 2011-06-02 |
WO2007090495A2 (en) | 2007-08-16 |
US7997516B2 (en) | 2011-08-16 |
EP1984115A2 (en) | 2008-10-29 |
AU2007214087A1 (en) | 2007-08-16 |
CN101370590A (en) | 2009-02-18 |
ES2354736T3 (en) | 2011-03-17 |
ATE487540T1 (en) | 2010-11-15 |
CN101370590B (en) | 2011-04-13 |
DE502007005611D1 (en) | 2010-12-23 |
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