EP2653229A1 - Rollenanschlag mit mindestens einer Rolle mit Flansch - Google Patents

Rollenanschlag mit mindestens einer Rolle mit Flansch Download PDF

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Publication number
EP2653229A1
EP2653229A1 EP20120164950 EP12164950A EP2653229A1 EP 2653229 A1 EP2653229 A1 EP 2653229A1 EP 20120164950 EP20120164950 EP 20120164950 EP 12164950 A EP12164950 A EP 12164950A EP 2653229 A1 EP2653229 A1 EP 2653229A1
Authority
EP
European Patent Office
Prior art keywords
roller
flange
roller crusher
crusher
rollers
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.)
Withdrawn
Application number
EP20120164950
Other languages
English (en)
French (fr)
Inventor
Lars GRÖNVALL
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.)
Metso Sweden AB
Original Assignee
Metso Minerals Sweden AB
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 Metso Minerals Sweden AB filed Critical Metso Minerals Sweden AB
Priority to DK14164193.6T priority Critical patent/DK2756886T3/en
Priority to EP20120164950 priority patent/EP2653229A1/de
Priority to EP14164193.6A priority patent/EP2756886B1/de
Priority to EP17174192.9A priority patent/EP3248685A2/de
Priority to AU2013203833A priority patent/AU2013203833C1/en
Priority to UAA201411212A priority patent/UA114621C2/uk
Priority to ARP130101297A priority patent/AR090752A1/es
Priority to PE2014001647A priority patent/PE20150076A1/es
Priority to PCT/EP2013/058146 priority patent/WO2013156586A2/en
Priority to CN201380020775.9A priority patent/CN104364014B/zh
Priority to CA3066151A priority patent/CA3066151C/en
Priority to RU2017121498A priority patent/RU2736296C1/ru
Priority to PE2017000736A priority patent/PE20171498A1/es
Priority to CN2013201992838U priority patent/CN203281336U/zh
Priority to MX2014012662A priority patent/MX352883B/es
Priority to CA2870044A priority patent/CA2870044C/en
Priority to BR112014025992-5A priority patent/BR112014025992B1/pt
Priority to RU2014141405A priority patent/RU2634954C2/ru
Publication of EP2653229A1 publication Critical patent/EP2653229A1/de
Priority to IN8393DEN2014 priority patent/IN2014DN08393A/en
Priority to CL2014002803A priority patent/CL2014002803A1/es
Priority to AU2015238874A priority patent/AU2015238874B2/en
Priority to CL2018003656A priority patent/CL2018003656A1/es
Withdrawn 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
    • B02C4/28—Details
    • B02C4/30—Shape or construction of rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C4/00—Crushing or disintegrating by roller mills
    • B02C4/02—Crushing or disintegrating by roller mills with two or more rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B3/00—Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs
    • B30B3/04—Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs co-operating with one another, e.g. with co-operating cones

Definitions

  • the invention relates to a roller crusher having two generally parallel rollers arranged to rotate in opposite directions, towards each other, and separated by a gap, each roller having a first end and a second end.
  • roller crushers When crushing or grinding rock, ore, cement clinker and other hard materials roller crushers may be used having two generally parallel rolls which rotate in opposite directions, towards each other, and which are separated by a gap. The material to be crushed is fed by gravity or choke-fed into the gap.
  • One type of roller crusher is called high pressure grinding rollers or high pressure roller crushers.
  • This type of roller crusher uses a crushing technique called interparticle crushing.
  • interparticle crushing the material to be crushed or pulverised is crushed not only by the crushing surface of the rolls, but also by particles in the material to be crushed, hence the name interparticle crushing.
  • the document discloses an improved roll for a roller press capable of withstanding very high nip forces in a press nip for interparticle crushing.
  • the roller press has a plurality of spaced wear-resistant surface members embedded in the pressing surface of the roll which are of a material harder than the material of the roll surface surrounding the inserts. By varying the size and number and material properties of the embedded pieces, the wear of the press roll is matched to the materials to be comminuted to minimize wear and to match the wear profile along the roll with extended pressing use.
  • a general problem associated with existing high pressure grinding rollers is that the ratio between the roller diameter and the roller width is very important due to a significant edge effect, i.e. the crushing result is reduced at the edges of the rollers. This is because of the fact that material can escape over the edges of the rollers thereby reducing the crushing pressure on the material towards the gap at the edges of the rollers. Thus, these roller parameters cannot be varied to the desired extent.
  • roller crusher according to the independent claims.
  • a roller crusher having two generally parallel rollers arranged to rotate in opposite directions, towards each other, and separated by a gap.
  • Each roller has a first end and a second end.
  • the roller crusher comprises a flange attached to at least one of the ends of one of the rollers.
  • the flange extends in a radial direction of the roller, and has a height above an outer surface of the roller which is sufficient to extend across the gap substantially along a nip angle of the roller crusher. This is advantageous in that the flange eliminates the weakness spot at the edge of the rollers.
  • the flange will help maintaining the material on the outer roller surface. That is to say, due to the flange, the material is prevented from falling over the edge of the roller.
  • the roller diameter and the roller width can be varied more freely without a reduced crushing result.
  • the flanges will facilitate the providing of an autogenous protection layer on the rollers, consisting of the material to be crushed.
  • the height may be sufficient to extend across the gap substantially along a nip angle of the roller crusher, when the gap is set to a maximum operational gap.
  • the flange may comprise a feeding structure on the inside of the flange, said structure extending from the inside of the flange towards the other end of the roller. This is advantageous in that the structure will help increasing the pressure on the material towards the gap between the rollers at the edge of the roller even further. The structure will engage with the material which will be moved inside the crushing area and the pressure will be optimized.
  • the structure may be arcuate, continuous, intermittent, or a combination thereof. These are preferred embodiments of the structure.
  • the flange may be made of a first material and the structure of a second material, said second material being harder than said first material. This way, the structure will act as a wear-resistant element and protect the flange from wear. The structure will also help creating and holding an autogenous protection layer on the flange.
  • the flange may be divided into a plurality of segments, which is advantageous in that both the manufacturing and mounting of the flange will be facilitated.
  • the flange may be attached to the roller by means of adhesive, bolting, screwing, welding, brazing or any other suitable fastening technique.
  • the roller crusher may comprise a flange attached to each end of one of said rollers, respectively.
  • the "nip angle" is defined as the angle between the horizontal plane extending through the centre of a first and a parallel second roller, and a straight line which is drawn from the centre of the first roller to and through a point on the parallel second roller, at which point an active engagement between the second roller and the material to be crushed is started.
  • two different nip angles are provided.
  • One nip angle concerns single particle crushing, and one nip angle concerns interparticle crushing.
  • the nip angle concerning interparticle crushing is obviously smaller than the nip angle concerning single crushing. Note that, in the present application, the nip angle concerning interparticle crushing is intended.
  • Fig. 1 illustrates a roller crusher 1 according to one exemplary embodiment of the invention.
  • the roller crusher 1 has two generally parallel rollers 2 arranged to rotate in opposite directions, towards each other, and are separated by a gap.
  • Each roller 2 has a first end 3 and a second end 4.
  • the roller crusher 1 comprises a flange 5 attached to the first and second end 3, 4 of one of the two rollers 2 of the roller crusher 1.
  • the flanges 5 extend in a radial direction of the roller 2 and have a height H above an outer surface 6 of the roller which is sufficient to extend across the gap substantially along a nip angle ⁇ of the roller crusher 1.
  • the height H is sufficient to extend across the gap substantially along a nip angle ⁇ of the roller crusher 1 when the gap is set to a maximum operational gap.
  • the flanges 5 are plain and will help maintaining material to be crushed on the outer roller surface 6. That is to say, due to the flanges 5, the material is prevented from falling over the edge of the roller 2.
  • the flanges will also facilitate the providing of an autogenous protection layer on the rollers, consisting of the material to be crushed.
  • the flanges 5 are divided into a plurality of segments 7 in order to facilitate the manufacturing and mounting of the same.
  • the flanges 5 are, for example, attached to the roller 2 by means of adhesive, bolting or screwing.
  • Fig. 2a the roller 2 of the roller crusher 1 having a flange 5 on each end 3, 4 and extending in a radial direction of the roller 2 is illustrated.
  • the flanges 5 are plain and will eliminate the weakness spot at the edge of the rollers 2.
  • the flanges 5 will help maintaining the material on the outer surface 6 of the rollers 2 and prevent the material from falling over the edge of the roller 2. This will in turn increase the pressure on the material towards the gap between the rollers 2 at the edge of the rollers 2.
  • Fig. 2b illustrates a segment 7 of the flange 5 in Fig. 2a .
  • the flanges 5 are divided into segments 7 in order to facilitate the manufacturing and mounting of the same.
  • the flanges 5 can naturally be designed as one single unit.
  • a second embodiment of the roller 2 of the roller crusher 1 is illustrated.
  • the flanges 5 comprise a feeding structure 8 on the inside of the flanges 5.
  • the structure 8 extends from the inside of the flange 5 towards the other end 3, 4 of the roller 2.
  • the structure 8 is continuous and arcuate.
  • the structure 8 will increase the pressure on the material towards the gap between the rollers 2 at the edge of the roller 2.
  • the material will engage with the structure 8 and be pressured towards and through the gap, i.e. the material will be choke-fed into the gap.
  • Fig. 3b illustrates a segment 7 of the flange 5 in Fig. 3a .
  • the flanges 5 according to this second embodiment can be designed as one single unit.
  • a third embodiment of the roller 2 of the roller crusher 1 is illustrated.
  • the flanges 5 also comprise a feeding structure 8 on the inside.
  • the structure 8 according to this embodiment is intermittent.
  • Fig. 4b illustrates a segment 7 of the flange 5 in Fig. 4a .
  • the flanges 5 according to this third embodiment can be designed as one single unit.
  • a side view of the roller crusher 1 is illustrated in order to facilitate the understanding of the nip angle ⁇ .
  • a first straight line has been drawn from the centre of the right roller 2 to and through a point on the left roller 2, at which point an active engagement between the left roller 2 and the material to be crushed is started.
  • the nip angle a is measured between the horizontal plane extending through the centre of the left and right roller, and said first straight line. It is the smaller of the two possible angles which can be obtained in accordance with the definition presented above.
  • the height H of the flange 5 above the outer surface 6 of the roller 2 is sufficient to extend across the gap substantially along the nip angle a of the roller crusher 1.
  • the material to be crushed is transported to the roller crusher 1 by means of a feeding arrangement and is introduced into a funnel of the feeding arrangement.
  • the material to be crushed is then fed to the gap between the two rollers 2 of the roller crusher 1.
  • the flange 5 of the roller crusher 1 will help maintaining the material on the outer roller surface 6 of the rollers 2 and help increasing the pressure on the material towards the gap between the rollers throughout the width of the rollers 2, especially at the edge of the rollers 2.
  • the material has been crushed by means of the two parallel and rotating crushing rollers 2, it travels by gravity out of gap in order to be transported from the unit.
  • the structure may be of any suitable size and shape, for example straight, inclined, curved, ring shaped, double or single.
  • the size and shape of the flanges may also be varied to include a plurality of structures. If the flanges comprise a plurality of structures, these structures may be of different size and shape.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Crushing And Grinding (AREA)
EP20120164950 2012-04-20 2012-04-20 Rollenanschlag mit mindestens einer Rolle mit Flansch Withdrawn EP2653229A1 (de)

Priority Applications (22)

Application Number Priority Date Filing Date Title
DK14164193.6T DK2756886T3 (en) 2012-04-20 2012-04-20 Roll crusher with at least one roller comprising a flange.
EP20120164950 EP2653229A1 (de) 2012-04-20 2012-04-20 Rollenanschlag mit mindestens einer Rolle mit Flansch
EP14164193.6A EP2756886B1 (de) 2012-04-20 2012-04-20 Rollenanschlag mit mindestens einer Rolle mit Flansch
EP17174192.9A EP3248685A2 (de) 2012-04-20 2012-04-20 Rollenanschlag mit mindestens einer rolle mit flansch
AU2013203833A AU2013203833C1 (en) 2012-04-20 2013-04-11 Roller crusher having at least one roller comprising a flange
RU2017121498A RU2736296C1 (ru) 2012-04-20 2013-04-19 Валковая дробилка
MX2014012662A MX352883B (es) 2012-04-20 2013-04-19 Triturador de rodillos que tiene al menos un rodillo que comprende una brida.
PE2014001647A PE20150076A1 (es) 2012-04-20 2013-04-19 Triturador de rodillos que tiene al menos un rodillo que comprende una brida
PCT/EP2013/058146 WO2013156586A2 (en) 2012-04-20 2013-04-19 Roller crusher having at least one roller comprising a flange
CN201380020775.9A CN104364014B (zh) 2012-04-20 2013-04-19 具有包括凸缘的至少一个辊的辊式破碎机
CA3066151A CA3066151C (en) 2012-04-20 2013-04-19 Roller crusher having at least one roller comprising a flange
UAA201411212A UA114621C2 (uk) 2012-04-20 2013-04-19 Валкова дробарка з щонайменше одним валком з фланцем
PE2017000736A PE20171498A1 (es) 2012-04-20 2013-04-19 Triturador de rodillos que tiene al menos un rodillo que comprende una brida
CN2013201992838U CN203281336U (zh) 2012-04-20 2013-04-19 辊式破碎机
ARP130101297A AR090752A1 (es) 2012-04-20 2013-04-19 Triturador de rodillos que tiene al menos un rodillo que comprende una brida
CA2870044A CA2870044C (en) 2012-04-20 2013-04-19 Roller crusher having at least one roller comprising a flange
BR112014025992-5A BR112014025992B1 (pt) 2012-04-20 2013-04-19 triturador de rolos
RU2014141405A RU2634954C2 (ru) 2012-04-20 2013-04-19 Валковая дробилка, в которой по меньшей мере один валок имеет фланец
IN8393DEN2014 IN2014DN08393A (de) 2012-04-20 2014-10-09
CL2014002803A CL2014002803A1 (es) 2012-04-20 2014-10-17 Triturador de rodillos que tiene dos rodillos paralelos dispuestos para girar en direcciones opuestas, uno hacia el otro, y separados por un espacio, comprende una brida unida con uno de los extremos de uno de los rodillos, la brida se extiende en dirección radial del rodillo y tiene una altura por encima de la superficie exterior del rodillo.
AU2015238874A AU2015238874B2 (en) 2012-04-20 2015-10-08 Roller crusher having at least one roller comprising a flange
CL2018003656A CL2018003656A1 (es) 2012-04-20 2018-12-17 Triturador de rodillos que tiene al menos un rodillo que comprende una brida. (divisional solicitud 201402803)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20120164950 EP2653229A1 (de) 2012-04-20 2012-04-20 Rollenanschlag mit mindestens einer Rolle mit Flansch

Related Child Applications (3)

Application Number Title Priority Date Filing Date
EP17174192.9A Division EP3248685A2 (de) 2012-04-20 2012-04-20 Rollenanschlag mit mindestens einer rolle mit flansch
EP14164193.6A Division EP2756886B1 (de) 2012-04-20 2012-04-20 Rollenanschlag mit mindestens einer Rolle mit Flansch
EP14164193.6A Previously-Filed-Application EP2756886B1 (de) 2012-04-20 2012-04-20 Rollenanschlag mit mindestens einer Rolle mit Flansch

Publications (1)

Publication Number Publication Date
EP2653229A1 true EP2653229A1 (de) 2013-10-23

Family

ID=46000964

Family Applications (3)

Application Number Title Priority Date Filing Date
EP17174192.9A Withdrawn EP3248685A2 (de) 2012-04-20 2012-04-20 Rollenanschlag mit mindestens einer rolle mit flansch
EP14164193.6A Active EP2756886B1 (de) 2012-04-20 2012-04-20 Rollenanschlag mit mindestens einer Rolle mit Flansch
EP20120164950 Withdrawn EP2653229A1 (de) 2012-04-20 2012-04-20 Rollenanschlag mit mindestens einer Rolle mit Flansch

Family Applications Before (2)

Application Number Title Priority Date Filing Date
EP17174192.9A Withdrawn EP3248685A2 (de) 2012-04-20 2012-04-20 Rollenanschlag mit mindestens einer rolle mit flansch
EP14164193.6A Active EP2756886B1 (de) 2012-04-20 2012-04-20 Rollenanschlag mit mindestens einer Rolle mit Flansch

Country Status (3)

Country Link
EP (3) EP3248685A2 (de)
CN (1) CN203281336U (de)
DK (1) DK2756886T3 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109847839A (zh) * 2019-02-18 2019-06-07 沈阳五寰科技有限公司 一种高压辊磨机
CN111923465A (zh) * 2020-08-10 2020-11-13 山西省农业科学院高寒区作物研究所 一种燕麦挤扁机
US20220288598A1 (en) * 2021-03-10 2022-09-15 Metso Outotec USA Inc. Spur wheel scraper
US11938488B2 (en) 2021-12-09 2024-03-26 Metso Outotec USA Inc. Roller crusher and method for operation thereof

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107309053A (zh) * 2017-05-11 2017-11-03 胡逸琴 一种地质勘测矿石多级破碎设备
CN108283964A (zh) * 2018-03-29 2018-07-17 郑伟杰 一种具有筛选功能的辊式碎石机
DE102018108690A1 (de) 2018-04-12 2019-10-17 Thyssenkrupp Ag Mahlwalze und Walzenpresse
US11077446B2 (en) * 2018-10-01 2021-08-03 Metso Outotec USA Inc. Startup sequence for roller crusher
DE102019209511A1 (de) 2019-06-28 2020-12-31 Thyssenkrupp Ag Walzenmühle mit Randelementen und Verfahren zum Einstellen eines stirnseitigen Spalts der Walzenmühle
US11931745B2 (en) 2021-06-23 2024-03-19 Metso Outotec USA Inc. Grinding roll
US11612895B2 (en) 2021-06-23 2023-03-28 Metso Outotec USA Inc. Grinding roll and a grinding assembly comprising the grinding roll

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1014383A (en) * 1911-02-25 1912-01-09 Jeremiah S Frazee Crushing-rolls.
DE457037C (de) * 1928-03-06 Bergedorfer Maschinenfabrik Vo Walzwerk zum Aufbereiten von Ton oder anderen breiigen oder koernigen Massen mit an den Stirnseiten der Walzen liegenden Abschlussplatten fuer den Walzenspalt
US1908519A (en) * 1928-07-10 1933-05-09 Albert P Leonard Sugar cane mill
US3873259A (en) * 1973-12-07 1975-03-25 United States Steel Corp Mold segment
US5054701A (en) * 1989-06-20 1991-10-08 Fives-Cail Babcock Milling process and apparatus
EP0514953A2 (de) * 1987-04-28 1992-11-25 Nittetsu Mining Co., Ltd. Walzenbrecher und Brechverfahren mit Anwendung desselben
EP0516952A1 (de) 1991-05-28 1992-12-09 Klöckner-Humboldt-Deutz Aktiengesellschaft Verschleissfeste Mahlwalze für die Verwendung in Walzenmaschinen, insbesondere in Hochdruckwalzenpressen
US5253816A (en) * 1989-07-20 1993-10-19 Krupp Polysius Ag Material crushing roller construction

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4037816A1 (de) * 1990-11-28 1992-06-04 Kloeckner Humboldt Deutz Ag Walzwerk
DK176624B1 (da) * 2007-07-25 2008-12-01 Smidth As F L Valsepresse med fleksible ringskivesektioner

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE457037C (de) * 1928-03-06 Bergedorfer Maschinenfabrik Vo Walzwerk zum Aufbereiten von Ton oder anderen breiigen oder koernigen Massen mit an den Stirnseiten der Walzen liegenden Abschlussplatten fuer den Walzenspalt
US1014383A (en) * 1911-02-25 1912-01-09 Jeremiah S Frazee Crushing-rolls.
US1908519A (en) * 1928-07-10 1933-05-09 Albert P Leonard Sugar cane mill
US3873259A (en) * 1973-12-07 1975-03-25 United States Steel Corp Mold segment
EP0514953A2 (de) * 1987-04-28 1992-11-25 Nittetsu Mining Co., Ltd. Walzenbrecher und Brechverfahren mit Anwendung desselben
US5054701A (en) * 1989-06-20 1991-10-08 Fives-Cail Babcock Milling process and apparatus
US5253816A (en) * 1989-07-20 1993-10-19 Krupp Polysius Ag Material crushing roller construction
EP0516952A1 (de) 1991-05-28 1992-12-09 Klöckner-Humboldt-Deutz Aktiengesellschaft Verschleissfeste Mahlwalze für die Verwendung in Walzenmaschinen, insbesondere in Hochdruckwalzenpressen

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109847839A (zh) * 2019-02-18 2019-06-07 沈阳五寰科技有限公司 一种高压辊磨机
CN111923465A (zh) * 2020-08-10 2020-11-13 山西省农业科学院高寒区作物研究所 一种燕麦挤扁机
CN111923465B (zh) * 2020-08-10 2021-11-16 山西省农业科学院高寒区作物研究所 一种燕麦挤扁机
US20220288598A1 (en) * 2021-03-10 2022-09-15 Metso Outotec USA Inc. Spur wheel scraper
US11938488B2 (en) 2021-12-09 2024-03-26 Metso Outotec USA Inc. Roller crusher and method for operation thereof

Also Published As

Publication number Publication date
EP2756886A2 (de) 2014-07-23
CN203281336U (zh) 2013-11-13
EP2756886A3 (de) 2015-06-03
EP2756886B1 (de) 2017-06-07
DK2756886T3 (en) 2017-09-25
EP3248685A2 (de) 2017-11-29

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