EP2911793B1 - Exzenter-walzenbrecher - Google Patents

Exzenter-walzenbrecher Download PDF

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Publication number
EP2911793B1
EP2911793B1 EP13783525.2A EP13783525A EP2911793B1 EP 2911793 B1 EP2911793 B1 EP 2911793B1 EP 13783525 A EP13783525 A EP 13783525A EP 2911793 B1 EP2911793 B1 EP 2911793B1
Authority
EP
European Patent Office
Prior art keywords
crusher
roller
rocker
eccentric
eccentric roller
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
EP13783525.2A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2911793A1 (de
Inventor
Piotr SZCZELINA
Detlef Papajewski
Peter Schatz
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 Industrial Solutions AG
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
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Application filed by ThyssenKrupp Industrial Solutions AG filed Critical ThyssenKrupp Industrial Solutions AG
Publication of EP2911793A1 publication Critical patent/EP2911793A1/de
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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
    • B02C1/00—Crushing or disintegrating by reciprocating members
    • B02C1/02—Jaw crushers or pulverisers
    • B02C1/08—Jaw crushers or pulverisers with jaws coacting with rotating roller
    • 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
    • B02C4/10—Crushing or disintegrating by roller mills with a roller co-operating with a stationary member
    • B02C4/12—Crushing or disintegrating by roller mills with a roller co-operating with a stationary member in the form of a plate
    • 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
    • B02C4/286—Feeding devices

Definitions

  • the present invention relates to an eccentric roller crusher with a crusher housing, a drive shaft, an eccentrically and rotatably mounted on the drive shaft roller and a rocker, which is pivotable about a swing axis for adjusting an exit gap between the roller and rocker.
  • An eccentric roller crusher with the features described above is known as “Rotex crushers” for a long time from the technical and patent literature.
  • the eccentric roll crusher (Rotex crusher) comprises a freely rotatable, mounted on an eccentric shaft in rolling bearings crushing roller and at least one provided with crushing jaws rocker. The operation of the eccentric roll crusher is fundamentally different from that of a conventional roll crusher.
  • the roller Due to the free or largely free rotatable mounting of the roller on the drive shaft there are no friction losses.
  • the roller is not limited in its movement and performs due to the forces acting on it during operation, a slow rotational movement, which is opposite to the direction of rotation of the drive shaft.
  • breaking - similar to a jaw crusher - is carried out by a lifting movement, the rotation of the roller against the direction of rotation of the drive shaft can also be achieved so that the loads are distributed over the entire shell of the roller.
  • the well-known eccentric roller crusher is characterized by low losses, low wear and relatively compact dimensions.
  • the crushing gap is formed between the roller and the at least one rocker. Taking into account the eccentric reciprocating motion of the roller results in an outer contact circle of the roller, which is swept by the shell of the roller successively in a complete rotation of the drive shaft. As previously explained, as the drive shaft rotates, the effective gap between the roller and the associated rocker changes. In order to additionally change the effective exit slit and the entrance slit, the rocker is mounted above the axis of the drive shaft about a rocker axis, which is parallel to the drive axis. The rocker is connected to a suitable adjustment mechanism in order to realize different gap dimensions. In addition, the adjusting mechanism can also be equipped with a safety device for limiting the forces acting. The risk of overloading, for example, if instead of the actual crushed material, such as rock, impurities such as metal parts or the like reach the crushing chamber.
  • the WO 2007/019146 A2 shows an embodiment of a single-roller crusher with a roller and only one rocker, wherein opposite to the above the roller mounted on the rocker arm swingarm a sieve is provided for deflection of the crushed material, whereby fine particles, which already have a desired grain size, are screened directly and not more as an additional material must be passed through the crushing gap.
  • the present invention has for its object to improve the known eccentric roller crusher.
  • the already relatively compact construction should be improved in order to expand the field of application of the eccentric roller crusher.
  • an entrance slit for the crushed material in contrast to the known from the prior art embodiments is not formed by the rocker itself, but by a separate from the rocker, separate guide element which is attached to the crusher housing, wherein the roller, the rocker and the guide element comprise crushing jaws.
  • the separate guide element may in particular have the form of a hood, which is occupied in the direction of the crushing gap with crushing jaws. According to the invention, this results in a division of the crushing space into an upper area with the inlet gap and a lower area with the outlet gap, wherein the upper area between the roller and the separate guide element and the lower portion of the crushing space between the roller and the rocker is formed.
  • the guide element is rigidly fastened to the breaker housing, it is deliberately dispensed with an adjustability of the entry gap directly during operation.
  • a change of the entrance slit in size and shape can be done by an exchange or a modification of the guide element.
  • the guide element usually also on crushing jaws, wherein the size and the contour of the entrance slit can be changed by an exchange of crushing jaws according to the particular requirements.
  • a change of the crushing jaws or at least a portion of the crushing jaws can be carried out after disassembly of the guide element or in the installed state of the guide element.
  • the described division of the crushing space in an eccentric roller crusher results in the advantage that the movable rocker and in particular the rocker axis can be set lower with the necessary storage.
  • the rocker is mounted on the pivot axis far above the axis of the drive shaft. Due to the inventive division of the crushing space with an attached guide element just the swingarm axis can be placed deeper and thus more laterally to the roller.
  • the present invention allows an embodiment in which a connecting line between a rotation axis of the drive shaft and the swing arm axis with a horizontal plane, which usually corresponds to the footprint of the eccentric roll crusher, an angle of less than 45 °, more preferably less than 30 °, includes.
  • the eccentric roller crusher can have two rockers on both sides of the roller or only one rocker arm.
  • both rockers can be combined with the guide element described above, which then forms the entrance slit for each of the two crushing spaces.
  • the two crushing chambers can be made the same.
  • a screening of the material to be crushed can be provided in order to be able to remove the sieved material directly without further comminution or to be able to supply the sieved material to a smaller crushing gap.
  • the screen is preceded by one of the two crushing spaces, the corresponding crushing space then usually having a smaller gap than the crushing space in which the coarse particles retained by the screen are broken.
  • the mesh is suitably chosen so that the screened material can be removed directly.
  • the breaker housing can be separated in the region of the roll.
  • the crusher housing is separable such that two laterally juxtaposed crusher housing halves arise, which for maintenance purposes particularly preferably can also be moved apart.
  • the parting plane usually extends substantially vertically.
  • the entire crusher housing in the invention may have a small height.
  • a shell of the roller defines a contact circle during operation due to the eccentric movement.
  • the present invention allows an embodiment of the eccentric roller crusher, in which the crusher housing in the vertical direction does not or only slightly beyond the contact circle. In particular, it may be provided that the crusher housing extends beyond the contact circle in the vertical direction by less than one third of the diameter of the roller.
  • the rocker axis can be approximately at the height of the upper edge of the contact circle.
  • the roller and the rocker are equipped with exchangeable crushing jaws.
  • the crushing jaws in particular those of the roller, may have longitudinal grooves in order to generate local force peaks during the crushing process.
  • a hopper can be arranged on the crusher housing, with which the material is fed to the crushing gap or the crushing gaps.
  • the eccentric roller crusher according to the invention is characterized by a very compact construction, which is why the eccentric roller crusher is particularly suitable for use in an underground mine.
  • underground mines there is the problem that for a crusher a correspondingly large cavity must be provided.
  • Crushers are used, for example, when a useful material is obtained by means of detonation, broken and subsequently removed. Crushing is required because the blasting itself produces a broad grain size distribution, and large chunks can not be removed by conveyor belts or the like.
  • the eccentric roll crusher can also be used particularly preferably in the case of block caving. When the block is broken, a cavity is formed below or in a lower region of a deposit, in which case the useful material present in the deposit collapses due to its own weight and internal stress in the material.
  • discharge hoppers are produced beforehand, through which the useful material is passed. Also in this mining process can result in a broad particle size distribution, which is why large chunks must be crushed before being transported by conveyor belts on.
  • eccentric roller crusher described can also be transported relatively easily underground, to which this can either be disassembled or pulled on runners or the like.
  • the Fig. 1 shows in a schematic longitudinal section of an eccentric roller crusher according to the invention with a crusher housing 1, a drive shaft 2, an eccentrically and freely rotatably mounted on the drive shaft 2 roller 3 and with a rocker 4, the order for setting an exit gap A between the roller 3 and rocker 4 a parallel to the axis of rotation D of the drive shaft 2 extending swing axis S is pivotable.
  • a guide element 5 in the form of a separate hood separated from the rocker is arranged above the rocker 4, wherein the guide element 5 forms an entrance slit E for the crushed material.
  • the hood as a guide element 5 is rigidly secured to the crusher housing 1, but can be removed for assembly and maintenance purposes, including 5 openings 6a, 6b are provided for a screw on the edge of crusher housing 1 and guide (see. Fig. 2b and 2d ).
  • the eccentric roll crusher is intended in particular for the comminution of hard, coarse material.
  • the Fig. 3 shows an example of the use of the eccentric roller crusher in an underground mine, wherein a useful material obtained by means of blasting, fed to the eccentric roller crusher, crushed by the eccentric roller crusher and a in the Fig. 3 indicated conveyor belt 7 is removed. From the Fig. 3 It can be seen that the eccentric roller crusher has a comparatively low overall height. Only for a crusher inlet in the form of a hopper 8 an increased room height must be provided. However, the crusher housing 1 can be made so low that the entire roll crusher can still be transported well after dismantling the hopper even underground.
  • Fig. 3 is also indicated that the space to be created underground 9 is adapted exactly to the compact dimensions of the eccentric roll crusher, wherein the conveyor belt 7 extends in a shaft below the bottom of the crusher housing 1.
  • the crushed material is guided over a wire 10, which is arranged opposite the rocker 4 above the roller 3 and is provided for screening small particles.
  • Small particles for example up to one Grain size of about 160 mm pass undrilled by a arranged below the screen 10 and next to the roller 3 Absiebraum to the conveyor belt 7.
  • the coarse material with a grain size of more 160 mm is in a crushing space between the roller 3 on the one hand and the rocker. 4 on the other hand crushed with the guide element 5 arranged above.
  • a screening can also take place at a distance in front of the roller 3.
  • the roller 3, the rocker 4 and the guide member 5 are provided with crushing jaws 11a, 11b, 11c (see Fig. 2a . 2c . 2d ) and form based on the material to be crushed a form constraint. Due to the eccentric movement of the roller 3, an outer contact circle B is defined, with the roller 3 reciprocating with respect to the rocker 4 and the guide member 5 and thus the coarse material alternately breaks and releases, so that this further slip along the gap or Finally, it is possible to leave the crushing space at the outlet gap A.
  • the Fig. 2a shows a cross section through the drive shaft 2 with the roller 3 arranged thereon. While on one side of the roller 3, a drive pulley 12 is arranged, on the opposite side of a flywheel 13 is mounted to allow a smooth running. It can also be seen that the drive shaft 2 has first bearings 14a for mounting in the crusher housing 1 and second bearings 14b for the eccentric mounting of the roller 3. Finally, it can also be seen that around the circumference of the roller 3 crushing jaws 11a are arranged as ring segments, wherein the crushing jaws 11a of the roller 3 are interchangeable by a screw and have a profiling.
  • the Fig. 2b shows the crusher housing 1, in which the roller 3 is received and the rocker 4 is mounted on the rocker axis S.
  • the connection can be made, for example, by connecting plates 15, which are arranged on the inside and outside of the crusher housing 1.
  • the crusher housing 1 can then be separated into two crusher housing halves 1 a, 1 b, wherein after a pulling apart of the crusher housing halves 1 a, 1 b, the roller 3 is accessible and can be taken out laterally from the crusher housing 1, resulting in a large space above the Crushing housing 1 can be dispensed to lift out the roller 3.
  • the Fig. 2c shows a detailed view of the rocker 4, wherein on the rocker changeable crushing jaws 11 b are attached.
  • the bearing of the rocker 4 on the swing arm axis S can be done for example by means of a sliding bearing 16.
  • the guide element 5 in the form of a hood, which is also equipped with exchangeable crushing jaws 11c.
  • eyelets 17 are arranged, with which the hood in case of need, after loosening the screw with the crusher housing 1, can be lifted.
  • Fig. 1 can be arranged lower by comparison with designs according to the prior art by the use of a rocker 4 with an overlying guide member 5, the rocker 4, resulting in a particularly compact design. So is in the Fig. 1 to recognize that a connecting line V between the rotation axis D of the drive shaft 2 and the swing arm axis S with a horizontal plane forms an angle ⁇ of less than 30 °. In the embodiment of Fig. 1 the angle ⁇ is about 25 °.
  • the rocker 4 is therefore stored next to the roller 3 and not above the roller 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Crushing And Grinding (AREA)
  • Disintegrating Or Milling (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
EP13783525.2A 2012-10-29 2013-10-25 Exzenter-walzenbrecher Active EP2911793B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012110331.3A DE102012110331A1 (de) 2012-10-29 2012-10-29 Exzenter-Walzenbrecher
PCT/EP2013/072349 WO2014067858A1 (de) 2012-10-29 2013-10-25 Exzenter-walzenbrecher

Publications (2)

Publication Number Publication Date
EP2911793A1 EP2911793A1 (de) 2015-09-02
EP2911793B1 true EP2911793B1 (de) 2017-05-31

Family

ID=49510130

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13783525.2A Active EP2911793B1 (de) 2012-10-29 2013-10-25 Exzenter-walzenbrecher

Country Status (9)

Country Link
EP (1) EP2911793B1 (es)
CN (1) CN104768647B (es)
AU (1) AU2013339604B2 (es)
BR (1) BR112015009402B1 (es)
CL (1) CL2015001072A1 (es)
DE (1) DE102012110331A1 (es)
DK (1) DK2911793T3 (es)
PE (1) PE20151113A1 (es)
WO (1) WO2014067858A1 (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019204836B3 (de) * 2019-04-04 2020-02-27 Thyssenkrupp Ag Exzenterwalzenbrechbackensatz und Exzenterwalzenbrechanlage umfassend einen solchen Brechbackensatz

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CN107377074B (zh) * 2017-09-14 2023-06-09 山东九昌重工科技有限公司 新型辊式破碎机挡料板装置
AU2018400359B2 (en) * 2018-01-04 2022-01-06 Flsmidth A/S Mobile crushing system having an eccentric roller crusher and finger screen
LU100672B1 (de) * 2018-01-04 2019-07-17 Thyssenkrupp Ind Solutions Ag Mobile Brechanlage mit Exzenterwalzenbrecher und Fingersieb
DE102019204822A1 (de) 2019-04-04 2020-05-14 Thyssenkrupp Ag Zerkleinerungseinrichtung mit einer Schutzabdeckung
CN110450317B (zh) * 2019-09-09 2021-06-25 安徽清蓝环保工程有限公司 一种废旧塑料玩具粉碎方法
CN110538688A (zh) * 2019-09-30 2019-12-06 连云港市海贡机械有限公司 紫菜粉碎机
CN111298891A (zh) * 2020-03-11 2020-06-19 塞尔姆（北京）科技有限责任公司 一种平头辊破碎机
CN111298892A (zh) * 2020-03-11 2020-06-19 塞尔姆（北京）科技有限责任公司 一种偏心辊式破碎机
CN111229376A (zh) * 2020-03-11 2020-06-05 塞尔姆（北京）科技有限责任公司 一种辊式破碎机
CN111215185A (zh) * 2020-03-21 2020-06-02 河南中誉鼎力智能装备有限公司 一种双腔卧式旋回破碎机及其智能控制方法
CN111774147A (zh) * 2020-07-21 2020-10-16 武汉理工大学 一种多功能破碎机
CN113499826A (zh) * 2021-08-06 2021-10-15 湖南远通重工科技有限公司 一种偏心辊式破碎机
DE102021213035A1 (de) 2021-11-19 2023-05-25 Thyssenkrupp Ag Exzenter-Walzenbrecher
CN114308215B (zh) * 2022-03-16 2022-06-10 河南中誉鼎力智能装备有限公司 一种高效智能卧式旋回破碎机
LU502855B1 (de) 2022-09-29 2024-03-29 Flsmidth Mining Tech Gmbh Walzenbrecher mit einstellbarem Brechspalt
DE102022125159A1 (de) 2022-09-29 2024-04-04 FLSmidth Mining Technologies GmbH Walzenbrecher mit einstellbarem Brechspalt
WO2024069462A1 (en) 2022-09-29 2024-04-04 Flsmidth A/S Roll crusher with adjustable crushing gap
DE102022126862A1 (de) 2022-10-14 2024-04-25 Flsmidth A/S Zweistufige Aufbereitungsanlage
WO2024079707A1 (en) 2022-10-14 2024-04-18 Flsmidth A/S Two-stage processing plant
BE1031019B1 (de) * 2022-11-09 2024-06-10 Smidth As F L Zerkleinerungsvorrichtung mit Plattenelement
WO2024100585A1 (en) * 2022-11-09 2024-05-16 Flsmidth A/S Comminution device with plate element
WO2024110881A1 (en) 2022-11-22 2024-05-30 Flsmidth A/S Crushing jaw set for a crusher and crusher with a crushing jaw set
LU503095B1 (de) 2022-11-22 2024-05-23 Smidth As F L Brechbackensatz für einen Brecher sowie Brecher mit Brechbackensatz
DE102022130837A1 (de) 2022-11-22 2024-05-23 Flsmidth A/S Brechbackensatz für einen Brecher sowie Brecher mit Brechbackensatz

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019204836B3 (de) * 2019-04-04 2020-02-27 Thyssenkrupp Ag Exzenterwalzenbrechbackensatz und Exzenterwalzenbrechanlage umfassend einen solchen Brechbackensatz

Also Published As

Publication number Publication date
WO2014067858A1 (de) 2014-05-08
PE20151113A1 (es) 2015-08-29
CL2015001072A1 (es) 2015-11-06
AU2013339604A1 (en) 2015-05-14
EP2911793A1 (de) 2015-09-02
DK2911793T3 (en) 2017-09-18
BR112015009402A2 (pt) 2017-07-04
BR112015009402B1 (pt) 2021-10-05
CN104768647A (zh) 2015-07-08
AU2013339604B2 (en) 2017-09-07
CN104768647B (zh) 2017-06-06
DE102012110331A1 (de) 2014-04-30

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