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EP2981359B1 - Broyeur à double cylindre - Google Patents

Broyeur à double cylindre Download PDF

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Publication number
EP2981359B1
EP2981359B1 EP14713366.4A EP14713366A EP2981359B1 EP 2981359 B1 EP2981359 B1 EP 2981359B1 EP 14713366 A EP14713366 A EP 14713366A EP 2981359 B1 EP2981359 B1 EP 2981359B1
Authority
EP
European Patent Office
Prior art keywords
crushing
roll
rolls
shell
teeth
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
EP14713366.4A
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German (de)
English (en)
Other versions
EP2981359A1 (fr
Inventor
Matthias Dick
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.)
Crush and Size Technology & Co KG GmbH
Original Assignee
Crush and Size Technology & Co KG 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 Crush and Size Technology & Co KG GmbH filed Critical Crush and Size Technology & Co KG GmbH
Publication of EP2981359A1 publication Critical patent/EP2981359A1/fr
Application granted granted Critical
Publication of EP2981359B1 publication Critical patent/EP2981359B1/fr
Active legal-status Critical Current
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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
    • B02C4/02—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
    • 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

Definitions

  • the invention relates to a two-roll crusher with rotatably mounted in a crusher housing, motor synchronously counter-rotating rollers whose central axes are directed parallel to each other, wherein on the mantle of the rollers crushing teeth are arranged, which protrude beyond the lateral surfaces.
  • Two-roll crushers are known and common, in particular, in the field of comminution technology in the mining industry.
  • conventional two-roll crushers comminution of coarse rock or the like takes place with the aid of two motor-driven rolls.
  • the rollers are aligned horizontally, with their center axes being aligned parallel to one another.
  • the direction of rotation of the two rollers is in opposite directions and indeed in such a way that the usually supplied above the nip crushed material is drawn by rotation of the rollers in the nip and crushed by the crushing teeth of the rollers.
  • the material is then discharged from the bottom of the nip.
  • crushing teeth are arranged on the roll shells, by means of which the comminution of the supplied material takes place.
  • the crushing teeth are provided in different arrangement to each other on the roll shells. They are preferably each arranged so that the crushing teeth of a roller not with the Crushing teeth of the other roller collide when circulating the rollers.
  • a synchronization of the rollers by a transmission is also known.
  • Crusher teeth can have a variety of contours, for example, it may be pointed teeth or chisel-like or fin-like crusher teeth, which are fixed in a holder on the roll shell, preferably interchangeable, such crusher teeth, for example, may have hardened tips and preferably approximately tangentially to the shell directed from this protrude.
  • the grain size achieved by crushing the supplied material by means of the two-roll crusher is determined by the nip.
  • the nip in turn depends on the tooth size.
  • a large gap with correspondingly large teeth on the roll shell causes the Final grain size after leaving the two-roll crusher is relatively large. This means that in practice pre-crushing two-roll crushers with relatively large teeth are used. Subsequently, however, a secondary comminution with a second two-roll crusher is necessary, which has smaller teeth, as a result of which the nip is smaller.
  • From the US 2 578 540 A is a two-roll crusher with rotatably mounted in a crusher housing, motor synchronously counter-rotating rollers known whose central axes are aligned parallel to each other, wherein on the mantle of the rollers crushing teeth are arranged, which protrude beyond the lateral surfaces.
  • the present invention seeks to provide a two-roll crusher, which allows a significantly greater crushing ratio between supplied Good and discharged Good, which is extremely economical and makes it necessary to achieve the final grain size no second embodiment of another two-roll crusher.
  • each crushing tooth of a roller of the roller pair is associated with a pocket in the lateral surface of the other roller of the roller pair, in such a way that during the rotation of the rollers the crushing tooth dips into the pocket.
  • each crushing tooth in a roll of the pair of rollers is associated with a pocket in the lateral surface of the other pair of rollers, in which the respective crushing tooth of the other Plunge roller can, on the one hand allows that the crushing teeth can have a large design, to crush also coarse material fed and push into the nip can.
  • this arrangement provides the possibility to set the nip between the rollers relatively narrow. As a result, large chunks of material to be shredded can be fed and shredded, and in only a single pass through the two-roll crusher, the final grain size of the material to be shredded is achieved.
  • the pocket size and depth of the shape and size of the matching crusher tooth is adjusted.
  • the bag is dimensioned so that dips into the circulation of the rolls of the crushing tooth without touching the pocket bottom in this.
  • the pockets and the crushing teeth are adapted to each other, so that during the circulation of the rollers there is a gap between the roll shells, which is smaller than the height of the crushing teeth.
  • the breaking teeth do not collide in any geometrical extent with the roll shell of the respective other roll, but nevertheless largely do so
  • Approaching the two rollers to reduce the nip formed between them is possible.
  • the respective opposite roller has a recess for each breaker tooth, into which the tooth can dip without touching the roll shell.
  • the geometry of the corresponding pocket or recess results from the movement curve of the crusher tooth relative to the roller body.
  • the roll drive is synchronized, for example via a branching gear.
  • the inventive design a very large size reduction of, for example, up to 1:20 is achieved.
  • this principle can be carried out according to the invention in all possible tooth orientations of the crushing teeth on the roll shell. For example, axially aligned arrangements on the roll shell, spirally offset arrangements, positive or negative V-shaped arrangements symmetrical to the roll center, irregular arrangements on the circumference, chaotic arrangements over the roll shell are known.
  • additional crushing projections are preferably provided in each case on both roll shells on the roll shell. These crushing projections are arranged offset relative to each other on the roll shells, so that they do not hit each other during the circulation of the rolls. Such crushing projections have only a relatively small height compared to the crushing teeth, but serve to continue to crush the retracted in the nip grain. This shredding through the small teeth is done without pockets for these teeth. The roll distance is only slightly increased by these small teeth. A nip is required to pass the shredded material anyway. This distance can be used by the arrangement of additional crushing projections.
  • breaking teeth and optionally also the crushing projections are respectively arranged on a circumferential casing line and each roller forms a plurality of mutually parallel spaced apart with crushing teeth and optionally crushing projections mantle circumferential lines.
  • circumferential lines are formed by ring-like elevations on the roll shell, which carry the crushing teeth and optionally the crushing projections.
  • the crushing teeth and optionally the crushing projections of a roller are formed on the shell axially offset from the crushing teeth and optionally Brechvorsprüngen on the mantle of the other roll.
  • a two-roll crusher 1 essential elements of a two-roll crusher 1 are shown.
  • Such a two-roll crusher has two rotatably mounted rollers 2, 3 which are synchronously driven in synchrony with one another.
  • the rollers 2, 3 have shaft ends on their end faces, which are mounted in a corresponding breaker housing and which are driven in synchronism and in opposite directions corresponding to the movement arrows 4, 5 by means of a suitable motor drive.
  • the central axes of the two rollers 2, 3 are aligned parallel to one another.
  • such two-roll crushers are equipped with horizontally oriented rolls 2, 3, wherein the material to be shredded is introduced from above into the nip between the rolls 2, 3, and is drawn in, while the comminuted material is removed below.
  • the pockets 8 and 9 and the crushing teeth 6 and 7 are adapted to each other in size and arrangement so that when rolling the rollers 2.3, a gap gap between the roll shells is maintained, which is smaller than the height of the crushing teeth 6.7 ,
  • additional crushing projections 10,11 are formed on the mantle of the rollers, whose height is significantly smaller than the height of the crushing teeth 6,7 and which are assigned no corresponding pockets.
  • the height of these additional crushing projections 10,11 is adapted to the nip between the rollers 2,3, so that they can pass through the nip without touching the respective other roller during operation of the two-roll crusher.
  • the crushing teeth 6,7 and the crushing projections 10,11 are each arranged on an annular circumferential sheath line, wherein each roller has a plurality of mutually parallel and spaced apart with Brechzähnen 6,7 or crushing projections 10,11 occupied Mantelellesringlinien.
  • Such ring lines are in the embodiment according to FIG. 7 and 8th formed by annular projections 12,13 on the roll shell of the rollers 2,3, said annular projections 12,13 carry the crushing teeth 6,7 and the crushing projections 10,11. Between these ring-like elevations 12,13 of the roll shell is formed without elevations smooth, in each case the design of the pockets is 8.9 provided in this area.
  • the crushing teeth 6, 7 and / or the crushing projections 10, 11 of one roller are each formed on their sheath axially offset from the crushing teeth and crushing projections on the shell of the other roller.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Crushing And Pulverization Processes (AREA)

Claims (8)

  1. Broyeur à rouleaux double (1) avec des rouleaux (2, 3) montés rotatifs dans un boîtier du broyeur et entraînés en synchronisme dans des directions opposées par un moteur, les axes médians de ces rouleaux s'étendant en parallèle entre eux, sur l'enveloppe des rouleaux (2, 3) des dents de broyage (6, 7) étant disposés qui font saillie des surfaces de l'enveloppe, caractérisé en ce qu'à chaque dent de broyage (6, 7) d'un rouleau (2, 3) de la paire des rouleaux est associée une poche (8, 9) dans la surface de l'enveloppe de l'autre rouleau (2, 3) de la paire des rouleaux, de façon que si les rouleaux (2, 3) tournent, le dent de broyage (6, 7) plonge dans la poche (8, 9).
  2. Broyeur à rouleaux double selon la revendication 1, caractérisé en ce que la taille et la profondeur de la poche sont adaptées à la forme et la taille du dent de broyage (6, 7) correspondant.
  3. Broyeur à rouleaux double selon la revendication 1 ou 2, caractérisé en ce que la poche (8, 9) est dimensionnée de façon que si les rouleaux (2, 3) tournent, le dent de broyage (6, 7) plonge dans la poche sans toucher le fond de la poche.
  4. Broyeur à rouleaux double selon une des revendications 1 à 3, caractérisé en ce que les poches (8, 9) et les dents de broyage (6, 7) sont adaptés entre eux, de façon que si les rouleaux (2, 3) tournent, il y ait un espace de jeu entre les enveloppes des rouleaux qui est inférieur à la hauteur des dents de broyage (6, 7).
  5. Broyeur à rouleaux double selon une des revendications 1 à 4, caractérisé en ce que sur l'enveloppe des rouleaux (2, 3) sont prévues des saillies de broyage (10, 11) additionnelles, dont la hauteur est inférieure ou égale à l'espace de jeu entre les rouleaux (2, 3).
  6. Broyeur à rouleaux double selon une des revendications 1 à 5, caractérisé en ce que les dents de broyage (6, 7) et le cas échéant aussi les saillies de broyage (10, 11) sont respectivement disposés sur une ligne périphérique de l'enveloppe, et que chaque rouleau (2, 3) forme plusieurs lignes périphériques de l'enveloppe espacées et parallèles entre eux pourvues de dents de broyage (6, 7) et le cas échéant de saillies de broyage (10, 11).
  7. Broyeur à rouleaux double selon la revendication 6, caractérisé en ce que les lignes périphériques sont formées par des bossages annulaires (12, 13) à l'enveloppe de rouleau supportant les dents de broyage (6, 7) et le cas échéant les saillies de broyage (9, 10).
  8. Broyeur à rouleaux double selon une des revendications 1 à 7, caractérisé en ce que les dents de broyage (6, 7) et le cas échéant les saillies de broyage (9, 10) de l'un rouleau (2, 3) sur l'enveloppe de celui-ci sont axialement déplacés par rapport aux dents de broyage (6, 7) et le cas échéant aux saillies de broyage (9, 10) sur l'enveloppe de l'autre rouleau (2, 3).
EP14713366.4A 2013-04-03 2014-03-06 Broyeur à double cylindre Active EP2981359B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202013101419.2U DE202013101419U1 (de) 2013-04-03 2013-04-03 Zweiwalzenbrecher
PCT/DE2014/100081 WO2014161528A1 (fr) 2013-04-03 2014-03-06 Broyeur à double cylindre

Publications (2)

Publication Number Publication Date
EP2981359A1 EP2981359A1 (fr) 2016-02-10
EP2981359B1 true EP2981359B1 (fr) 2017-05-10

Family

ID=50389746

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14713366.4A Active EP2981359B1 (fr) 2013-04-03 2014-03-06 Broyeur à double cylindre

Country Status (9)

Country Link
US (1) US10065191B2 (fr)
EP (1) EP2981359B1 (fr)
CN (1) CN105121022B (fr)
AU (1) AU2014247401B2 (fr)
BR (1) BR112015024915B1 (fr)
CA (1) CA2907954C (fr)
DE (1) DE202013101419U1 (fr)
WO (1) WO2014161528A1 (fr)
ZA (1) ZA201506358B (fr)

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DE202013104241U1 (de) 2013-09-17 2014-12-18 Klaus Bellingroth Walzenbrecher
US10258993B1 (en) * 2015-11-10 2019-04-16 Robert Allen Moreland Punch and die media destruction system
DE202016101205U1 (de) 2016-03-07 2017-06-12 Crush + Size Technology Gmbh & Co. Kg Zweiwalzenbrecher
DE202016101549U1 (de) 2016-03-22 2017-06-26 Crush + Size Technology Gmbh & Co. Kg Zweiwalzenbrecher
CN105944791A (zh) * 2016-05-25 2016-09-21 南京航空航天大学 一种双齿辊破碎机及其工作方法
DE202016104868U1 (de) 2016-09-05 2016-09-20 Crush + Size Technology Gmbh & Co. Kg Zweiwalzenbrecher
CN106577971B (zh) * 2016-11-01 2018-08-10 浙江大学舟山海洋研究中心 蟹肉分离设备
CN107127029A (zh) * 2017-05-24 2017-09-05 肇庆高新区国专科技有限公司 剪切式破碎机刀具及破碎轴装置
RU2653077C1 (ru) * 2017-06-14 2018-05-07 федеральное государственное бюджетное образовательное учреждение высшего образования "Ставропольский государственный аграрный университет" Плющилка-дробилка
CN107469921A (zh) * 2017-09-07 2017-12-15 湖北和泰生物能源有限公司 一种生物质颗粒燃料粉碎设备
CN108333005A (zh) * 2017-12-30 2018-07-27 黄旭东 一种煤粉制样装置
CA181793S (fr) * 2018-06-12 2019-10-07 Lauzon Daniel Offset roller with fins
CN109569839B (zh) * 2018-11-16 2020-10-30 漯河医学高等专科学校 一种药品分析用药物粉碎装置及其粉碎方法
CN110575865B (zh) * 2019-09-25 2021-11-02 福建泉州市宝质混凝土有限公司 一种辊式粉碎机
CN110882752B (zh) * 2019-11-07 2025-02-07 福建省铁拓机械股份有限公司 一种对辊式破碎机及再生沥青混合料的破碎方法
CN110918173A (zh) * 2019-11-12 2020-03-27 宣城久悠谷电子科技有限公司 一种家用智能垃圾处理装置
CN117427747B (zh) * 2023-12-21 2024-03-05 泗洪县豆香脆食品有限公司 一种大豆加工用破碎装置

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Also Published As

Publication number Publication date
AU2014247401A1 (en) 2015-10-15
CA2907954A1 (fr) 2014-10-09
US20160030942A1 (en) 2016-02-04
BR112015024915B1 (pt) 2021-03-09
CA2907954C (fr) 2020-09-15
CN105121022B (zh) 2018-09-25
WO2014161528A1 (fr) 2014-10-09
CN105121022A (zh) 2015-12-02
US10065191B2 (en) 2018-09-04
BR112015024915A2 (pt) 2017-07-18
DE202013101419U1 (de) 2014-07-04
ZA201506358B (en) 2016-12-21
AU2014247401B2 (en) 2016-04-21
EP2981359A1 (fr) 2016-02-10

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