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EP1984115B1 - Broyeur à plusieurs cylindres - Google Patents

Broyeur à plusieurs cylindres Download PDF

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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.)
Active
Application number
EP07700215A
Other languages
German (de)
English (en)
Other versions
EP1984115A2 (fr
Inventor
Viktor Raaz
Detlef Papajewski
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.)
ThyssenKrupp Industrial Solutions AG
Original Assignee
ThyssenKrupp Foerdertechnik GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ThyssenKrupp Foerdertechnik GmbH filed Critical ThyssenKrupp Foerdertechnik GmbH
Publication of EP1984115A2 publication Critical patent/EP1984115A2/fr
Application granted granted Critical
Publication of EP1984115B1 publication Critical patent/EP1984115B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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)

Claims (19)

  1. Broyeur à plusieurs cylindres pour broyer, eu cours d'une seule étape de broyage, un produit à broyer d'origine minérale, comme, en particulier, du charbon ou du sable pétrolifère, avec au moins trois cylindres broyeurs (1, 2, 1', 2'), des dents de broyage et / ou coupantes (4) étant disposées sur la périphérie des cylindres broyeurs (1, 2, 1', 2'), et les axes de rotation (R) étant orientés parallèlement les uns par rapport aux autres et horizontalement ou à peu près horizontalement, caractérisé en ce que tous les cylindres broyeurs (1, 2, 1', 2') directement voisins présentent des directions de rotation opposées, que la ligne de jonction (V) des axes de rotation (R) présente au moins un coude et qu'un espace de travail (A) et un espace libre (L) alternent chaque fois sur la totalité de la largeur de la chambre de broyage en raison des directions de rotation alternées des cylindres broyeurs (1, 2, 1', 2').
  2. Broyeur à plusieurs cylindres selon la revendication 1, caractérisé en ce que, sous l'espace de travail (A), formée entre deux cylindres broyeurs (1, 2), est disposée une bande d'enclume (3), qui s'étend sur toute la longueur des cylindres broyeurs (1, 2).
  3. Broyeur à plusieurs cylindres selon la revendication 2, caractérisé en ce que, dans la région supérieure de la bande d'enclume (3), au sommet ou latéralement, sont agencés des éléments broyeurs ou coupants (5, 6, 7), qui coopèrent avec les dents de broyage et / ou coupantes (4), disposées sur la périphérie des cylindres broyeurs (1, 2).
  4. Broyeur à plusieurs cylindres selon la revendication 3, caractérisé en ce que les éléments broyeurs ou
    coupants (5, 6, 7), agencés sur la bande d'enclume (3), sont disposés sur des barres (10) interchangeables, entièrement ou partiellement rectilignes ou en forme de crête.
  5. Broyeur à plusieurs cylindres selon la revendication 2, caractérisé en ce que la bande d'enclume (3) est montée réglable en hauteur et / ou élastiquement.
  6. Broyeur à plusieurs cylindres selon la revendication 1, caractérisé en ce que l'un ou les deux cylindres broyeurs (1', 2') extérieurs coopèrent avec des dents de broyage (14) ou des bandes d'enclume, qui sont montées fixement, de manière réglable et / ou élastiquement sur les parois adjacentes (12, 13).
  7. Broyeur à plusieurs cylindres selon la revendication 1, caractérisé en ce que la ligne de jonction (V) s'étend, dans la région d'un espace de travail (A), en formant, par rapport à l'horizontale, un angle α allant jusqu'à 30 °.
  8. Broyeur à plusieurs cylindres selon la revendication 1, caractérisé en ce que la ligne de jonction (V) s'étend, dans la région d'un espace libre (L), en formant, par rapport à l'horizontale, un angle β allant jusqu'à 90 °.
  9. Broyeur à plusieurs cylindres selon la revendication 1, caractérisé en ce que la ligne de jonction (V) s'étend, dans la région d'un espace libre (L), en formant, par rapport à l'horizontale, un angle β allant jusqu'à 75 °.
  10. Broyeur à plusieurs cylindres selon la revendication 8, caractérisé en ce que l'angle β est de 30 à 60°.
  11. Broyeur à plusieurs cylindres selon la revendication 8 ou 9, caractérisé en ce que l'angle α est inférieur ou égal à l'angle β.
  12. Broyeur à plusieurs cylindres selon la revendication 1, caractérisé en ce que les dents de broyage et / ou coupantes (4) sur un espace de travail (A) sont décalées les unes par rapport aux autres dans la direction périphérique et / ou dans la direction axiale des cylindres broyeurs (1, 2, 1', 2').
  13. Broyeur à plusieurs cylindres selon la revendication 1, caractérisé en ce que les cylindres broyeurs (1, 2, 1', 2') consistent en des disques dentés, disposés en alignement axial.
  14. Broyeur à plusieurs cylindres selon la revendication 1, caractérisé en ce que la longueur (1) de la ligne de jonction (V) sur un espace libre (L) est inférieure ou égale à la longueur (a) de la ligne de jonction (V) sur un espace de travail (A).
  15. Broyeur à plusieurs cylindres selon la revendication 1, caractérisé en ce que deux cylindres broyeurs (1, 2, 1', 2'), formant un espace libre (L) entre eux, sont disposés, chaque fois, en tant qu'unité, sur un organe basculant (11), qui est monté, articulée en rotation et / ou en translation sur le carter du broyeur à plusieurs cylindres.
  16. Broyeur à plusieurs cylindres selon la revendication 15, caractérisé en ce que l'organe basculant (11) peut être pivotée autour d'un axe de rotation (15), qui est disposé parallèlement aux axes de rotation (R) des cylindres broyeurs (1, 2, 1', 2').
  17. Broyeur à plusieurs cylindres selon revendication 15 ou 16, caractérisé en ce que le pivotement de l'organe basculant (11) est limité par une butée (17) réglable.
  18. Broyeur à plusieurs cylindres selon la revendication 16, caractérisé en ce qu'un ressort (16) agit sur l'organe basculant (11) dans la direction de la butée (17).
  19. Broyeur à plusieurs cylindres selon la revendication 1, caractérisé en ce que les cylindres broyeurs (1, 2, 1', 2') ont des diamètres identiques ou différents.
EP07700215A 2006-02-03 2007-01-11 Broyeur à plusieurs cylindres Active EP1984115B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006005017A DE102006005017B3 (de) 2006-02-03 2006-02-03 Mehrwalzenbrecher
PCT/EP2007/000188 WO2007090495A2 (fr) 2006-02-03 2007-01-11 Broyeur à plusieurs cylindres

Publications (2)

Publication Number Publication Date
EP1984115A2 EP1984115A2 (fr) 2008-10-29
EP1984115B1 true EP1984115B1 (fr) 2010-11-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP07700215A Active EP1984115B1 (fr) 2006-02-03 2007-01-11 Broyeur à plusieurs cylindres

Country Status (8)

Country Link
US (1) US7997516B2 (fr)
EP (1) EP1984115B1 (fr)
CN (1) CN101370590B (fr)
AT (1) ATE487540T1 (fr)
AU (1) AU2007214087B2 (fr)
DE (2) DE102006005017B3 (fr)
ES (1) ES2354736T3 (fr)
WO (1) WO2007090495A2 (fr)

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DE102011000019A1 (de) 2011-01-03 2012-07-05 ThyssenKrupp Fördertechnik GmbH Mobile Brechanlage
DE102011000018A1 (de) 2011-01-03 2012-07-05 ThyssenKrupp Fördertechnik GmbH Mehrwalzenbrecher

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Publication number Priority date Publication date Assignee Title
DE102011000019A1 (de) 2011-01-03 2012-07-05 ThyssenKrupp Fördertechnik GmbH Mobile Brechanlage
DE102011000018A1 (de) 2011-01-03 2012-07-05 ThyssenKrupp Fördertechnik GmbH Mehrwalzenbrecher
WO2012092952A1 (fr) 2011-01-03 2012-07-12 ThyssenKrupp Fördertechnik GmbH Installation de concassage mobile
WO2012092951A1 (fr) 2011-01-03 2012-07-12 ThyssenKrupp Fördertechnik GmbH Concasseur à cylindres multiples

Also Published As

Publication number Publication date
EP1984115A2 (fr) 2008-10-29
CN101370590B (zh) 2011-04-13
US20090020637A1 (en) 2009-01-22
US7997516B2 (en) 2011-08-16
AU2007214087B2 (en) 2011-06-02
DE502007005611D1 (de) 2010-12-23
ES2354736T3 (es) 2011-03-17
WO2007090495A3 (fr) 2007-12-13
WO2007090495A2 (fr) 2007-08-16
CN101370590A (zh) 2009-02-18
AU2007214087A1 (en) 2007-08-16
ATE487540T1 (de) 2010-11-15
DE102006005017B3 (de) 2007-10-18

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