EP3233287B1 - Brecheinrichtung - Google Patents

Brecheinrichtung Download PDF

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Publication number
EP3233287B1
EP3233287B1 EP15810671.6A EP15810671A EP3233287B1 EP 3233287 B1 EP3233287 B1 EP 3233287B1 EP 15810671 A EP15810671 A EP 15810671A EP 3233287 B1 EP3233287 B1 EP 3233287B1
Authority
EP
European Patent Office
Prior art keywords
crushing
housing
receiving device
crushing apparatus
receptacle
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
EP15810671.6A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3233287A1 (de
Inventor
Peter Schatz
Thomas Gernhardt
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 AG
ThyssenKrupp Industrial Solutions AG
Original Assignee
ThyssenKrupp AG
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
Application filed by ThyssenKrupp AG, ThyssenKrupp Industrial Solutions AG filed Critical ThyssenKrupp AG
Publication of EP3233287A1 publication Critical patent/EP3233287A1/de
Application granted granted Critical
Publication of EP3233287B1 publication Critical patent/EP3233287B1/de
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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
    • B02C4/02—Crushing or disintegrating by roller mills with two or more 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
    • 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
    • B02C4/32—Adjusting, applying pressure to, or controlling the distance between, milling members

Definitions

  • the invention relates to a crushing device for breaking crushed material.
  • Known crushing devices such as roll crushers, have a plurality of mutually parallel crushing rollers, which form a crushing gap between two adjacent crushing rollers. Adjacent crushing rollers are usually driven in opposite directions, so that material to be crushed is moved into the crushing gap. To change the degree of comminution of the material, it is necessary to increase or decrease the crushing gap accordingly.
  • compact roll crushers such as Sizern
  • a change in the Brechspaltgeometrie has not been possible without making a redesign of the existing crushing device, in particular the crushing tools and crushing rollers.
  • larger roll crushers such as those from the EP2653233B1 are known, a change in the gap geometry by a hydraulic adjustment of the crushing rollers is known.
  • Such a crushing device has a plurality of components and is therefore cost and maintenance intensive.
  • DE-19715210-A1 DE-3725267-A1 and CN 202021063 U disclose crushing devices in which an eccentric device is used to adjust the crushing gap.
  • a crushing device for breaking crushed material comprises a housing, at least one crushing roller, at least one bearing for supporting the crushing roller, and at least one substantially sleeve-shaped receiving device, which is arranged between the housing and the bearing such that the receiving device relative to the Housing is rotatable about its central axis.
  • the bearing is mounted eccentrically in the receiving device, so that by a rotation of the receiving device, the bearing moves relative to the housing.
  • the center axis of the bearing is moved relative to the housing, wherein the crushing device has a biasing element, which is arranged such that it acts on the housing against the housing with a biasing force.
  • the crushing material to be crushed with the crushing device includes, for example, rock, cement, cement clinker, coal, ores or other hard materials.
  • the crushing device comprises, for example, a roll crusher or an sizer with a plurality of crushing rolls.
  • Under the housing is the housing of the crushing means to understand that at least partially receives the crushing rollers, for example, it is a frame that carries the crushing rollers.
  • a crushing roller preferably comprises a crushing shaft with a cylindrical roller body arranged around this crushing shaft.
  • a plurality of crushing teeth are arranged circumferentially spaced from each other, so that during operation of the crushing device, the crushing rollers are driven to rotate in opposite directions and crushing material is moved by the rotation and the crushing teeth in the crushing gap between two crushing rollers.
  • the bearing preferably has a roller bearing or a plain bearing and receives the crushing wave, so that it is rotatably mounted about its central axis.
  • the central axis of the crushing wave is offset and not arranged coaxially with the central axis of the receiving device.
  • a rotation of the receiving device about its central axis causes a movement of the breaking wave, in particular a circular movement about the central axis of the receiving device. It is conceivable to arrange the receiving sleeve such that it forms the outer receptacle of a roller bearing against which the rolling elements, or the outer receptacle of a sliding bearing.
  • the receiving device is for example manually rotated about its central axis and locked via a detachable connection, such as a screw, so that further rotation is prevented.
  • the receiving device for example, rotatably screwed or clamped to the housing.
  • a screw or a jamming of the receiving device on the housing has, for example, break bolts or similar overload protection.
  • the eccentric recording of the storage in the receiving device provides an easy way to move the breaking wave and thus to increase or decrease the crushing gap.
  • a redesign of the crushing device is not required. In particular, it is not necessary to reconstruct the roll geometry in order to influence the crushing result, since the crushing gap also influences the crushing result.
  • a biasing element allows an increase in the frictional force between the housing and the receiving device so that rotation of the receiving device is difficult. Thus, a rotation of the receiving device is possible relative to the housing only from a certain force acting on the receiving device circumferential force. During the operation of the crushing device act on the crushing rollers radial forces that occur due to the breaking of the crushed material in the crushing gap.
  • the receiving device Due to the eccentric position of the receiving device relative to the crushing roller act on the receiving device during operation of the crushing roller forces in the circumferential direction of the receiving device. If these circumferential forces exceed a certain value, the receiving device rotates about its central axis. Via the biasing element, the value of the circumferential force, which generates a rotation of the receiving device, is adjustable. Preferably, during a normal operation of the crushing device, in which no increased forces, for example due to non-friable material in the crushing gap, occur, the receiving device is non-rotatably mounted on the housing. By the biasing element overload protection of the crushing device is realized. In an overload case, in which, for example, non-breakable material in the crushing gap, the receiving device rotates and the crushing gap is thus increased. As a result, in particular damage to the mechanical elements such as the bearings is avoided.
  • At least one friction insert is arranged between the housing and the receiving device.
  • a friction insert prevents direct friction of the receiving device on the housing, so that, for example, jamming or wear of these elements is avoided.
  • the friction insert comprises, for example, plastic, ceramic, metal or organic-based material.
  • the friction insert is acted upon by the pretensioning element with a pretensioning force, so that a coefficient of friction is established between the receiving device and the housing, which prevents rotation of the receiving device, in particular during normal operation of the crushing device.
  • the biasing element is a spring element, in particular an annular spring element.
  • the biasing element is according to another embodiment, a hydraulic clamping element, in particular a hydraulic piston ring cylinder.
  • a hydraulic clamping element allows easy adjustment of the biasing force on the receiving device and thus a change in the overload value, from which a rotation of the receiving device is made possible.
  • the crushing device comprises according to a further embodiment, at least two parallel crushing rollers forming a crushing gap, and each having at least one bearing, at least two receiving devices, each disposed between the housing and a respective bearings, and at least one connecting element, which is arranged such that it couples the movements of the at least two receiving devices.
  • the movement of a receiving device is transmitted via a connecting element in such a way at least one further receiving device that the further receiving device moves, in particular the movements of at least two receiving devices are synchronized or at least one receiving device moves in opposite directions to a further receiving device.
  • Such a connecting element allows a synchronous or an opposite movement, in particular a synchronous movement of the receiving devices in a multi-roll crusher.
  • the movements of two recording devices arranged on a crushing roller are synchronized, so that a synchronization of the recording devices takes place.
  • This allows a uniform displacement of the crushing roller, wherein the movement of the bearings of the crushing roller is coupled and thus an oblique position of the crushing roller is prevented in the crushing device.
  • the circular movement of the refractive wave caused by the rotation of the receiving device results in a horizontal and a vertical offset of the refractive wave.
  • the refractive gap in particular the horizontal offset of the refractive wave is desired. Therefore, the movements of two arranged on parallel crushing rollers recording devices are synchronized so that the receiving devices move in opposite directions and the crushing gap between the parallel crushing rollers is adjustable.
  • the connecting element is according to a further embodiment, a mechanical connecting element or a hydraulic connecting element.
  • the connecting element is preferably designed such that it transmits a rotation of one of the receiving devices, in particular the circumferential movement of the receiving device, via, for example, a mechanical or a hydraulic device to another of the receiving devices and thus enables a simultaneous, in particular synchronous movement of a plurality of receiving devices.
  • a mechanical connecting element comprises, for example, a coupling rod, in particular a rack.
  • the coupling rod is preferably arranged between two receiving devices adjacent crushing rollers, that rotate the receiving devices in opposite directions to each other and thus the crushing gap is adjustable.
  • a mechanical connecting element further comprises, for example, at least one lever, which is for example hinged to two receiving devices.
  • a hydraulic connecting element comprises, for example, at least one hydraulic cylinder connected to a pressure accumulator, which is in communication with at least one receiving device.
  • a sleeve-shaped displacement device is arranged between the receiving device and the housing, in which the receiving device is arranged eccentrically.
  • the displacement device allows an overload protection, wherein the receiving device allows easy adjustment of the crushing gap, regardless of the overload protection.
  • Fig. 1 shows a schematic sectional view of a non-inventive crushing device, namely a roll crusher 10 with two crushing rollers 30.
  • the crushing rollers 30 are arranged parallel to each other and form between them a crushing gap 46.
  • the crushing rollers 30 each comprise a shaft 26 which extends axially through a roller body 48 fixedly connected to the shaft.
  • the roller body 48 has a circular cross-section, wherein on the surface of the roller body 48 circumferentially spaced a plurality of crushing teeth 32 is arranged.
  • the roll crusher 10 has an in Fig. 1 rectangularly illustrated housing 12, which has two arranged at the same height, circular recesses, in each of which a sleeve-shaped receiving device 16 is arranged.
  • the housing is exemplified in one piece. It is also conceivable to form the housing from a plurality of housing segments, in particular two housing segments, which the in Fig. 1 Share shown housing in the longitudinal direction.
  • a substantially sleeve-shaped Reibeinlage 14 is arranged, for example, plastic, ceramic, metal or organic-based material.
  • the receiving device 16 has a circular cross-section with a parallel to the central axis M2 of the receiving device 16 extending, eccentric bore.
  • the center axis M1 of the eccentric bore is toward the center axis M2 the receiving device 16 is arranged offset.
  • the offset of the central axis M1 to the central axis M2 about half of the radius of the receiving device 16.
  • a shaft 26 is arranged coaxially with the bore 26 with a rolling bearing 20 arranged around the shaft.
  • the rolling bearing 20 has a non-rotatably connected to the receiving device outer bearing ring 18 and a rotatably connected to the shaft 26 inner bearing ring 22. Between the outer bearing ring 18 and the inner bearing ring 22, a plurality of rolling elements schematically illustrated 24 are arranged.
  • the receiving device 16 is rotatably mounted within the housing 12 about its central axis M2.
  • the friction insert 14 has a specific coefficient of friction and, starting from a specific circumferential force applied to the receiving device 16, allows rotation of the receiving device 16 relative to the housing 12.
  • the friction insert 14 may be, for example, plastic, ceramic, metal or organic-based material.
  • Rotation of the receiver 16 within the housing 12 causes displacement of the breaker shaft 26 relative to the housing.
  • the central axis M1 of the breaker shaft 26 is displaceable about the center axis M2 by a rotation of the receiving device 16 about its center axis M2 on a circular path with a radius corresponding to the distance of the center axes M1 and M2.
  • the receiving devices 16 are in the in Fig. 1 shown rotated relative to each other at an angle of 180 °, so that the central axes M1 of the crusher shafts 42 are arranged on a common horizontal plane, at the level of the center axes M2.
  • the crusher shafts 26 are each arranged on the outermost horizontal position, so that the crushing gap 46 formed between the crusher rollers 30 corresponds to the largest possible crushing gap.
  • the receiving means 16 are rotated about their central axes M2 in opposite directions to each other.
  • the rotational movements of the receiving means 16 are coupled together by means not shown connecting means, so that the receiving means 16 have the same angular rotation about the central axis M2 and the central axes M1 of the crusher shafts 26 is at the same height.
  • Fig. 2 shows a section of a schematic sectional view of a roller crusher 10 not according to the invention Fig. 1 with two parallel crushing rollers 30, between where a crushing gap 46 is formed.
  • the crushing rollers 30 each have a crusher shaft 26 and a coaxially arranged around the crusher shaft 26 roller body 48 having on its surface circumferentially arranged and spaced apart crushing teeth 32 for breaking crushed material, such as rock has.
  • the roll crusher 10 further comprises a crusher housing 12, wherein in Fig. 2 a section of the crusher housing 12 is shown.
  • a crusher housing 12 In the crusher housing 12, two parallel and arranged in a plane receiving means 16 are arranged, each receiving a rolling bearing 20, each with a crusher shaft 26.
  • the arrangement of the receiving device 16, and the crusher shaft 26 and the rolling bearing 20 in the crusher housing 12 correspond to those with reference to Fig. 1 described arrangement.
  • the receiving device 16 further has a flange region, which extends both axially and radially beyond the breaker housing 12_hinaus. At the flange portion, the receiving device 16 is attached to the breaker housing 12 via releasable connection means, such as a threaded connection 44.
  • the crushing rollers 30 are driven in opposite directions in rotation, so that crushed crushed material fed into the roller cup is moved into the crushing gap 46.
  • the screw 44 is released and rotated at least one of the receiving devices 16 about its central axis M2, wherein the shaft 26 is moved on a circular path about the central axis M2.
  • the receiving device 16 is fixed in the desired position on the crusher housing 12.
  • a plurality of bores in the crusher housing 12 are mounted so that the receiving device 16 in a plurality of angularly rotated about the central axis M2 positions on the crusher housing 12 can be fastened.
  • the receiving devices 16 are aligned such that the crushing rollers form the largest possible crushing gap between them.
  • Fig. 3 shows a section of a schematic sectional view of a roll crusher 34 according to an embodiment of the invention.
  • the roll crusher 34 has two crushing rollers 30 which are the crushing rollers of the FIGS. 1 and 2 correspond.
  • the roll crusher 34 of the invention Fig. 3 differs from the roller crusher not according to the invention 10 of the Fig. 2 in that the receiving means 36 of the Fig. 3 is acted upon by a biasing member 38 against the housing 12 with a biasing force.
  • the biasing member 38 includes, for example, a mechanical biasing member, such as an annular spring, or a hydraulic biasing member, such as a hydraulically powered annular piston on.
  • a mechanical biasing member such as an annular spring
  • a hydraulic biasing member such as a hydraulically powered annular piston on.
  • the housing 12 has a recess in which the biasing member 38 is arranged.
  • the receiving device 36 has a projection which projects into the recess of the housing 12 and is acted upon by the biasing element 38 against the housing 12 with a biasing force.
  • a friction insert 40 is arranged, which allows a movement of the receiving device 36 relative to the housing from a certain peripheral force on the receiving device.
  • the friction insert 40 is acted upon by the biasing force applied by the biasing member, so that the static friction force of the friction insert is increased and a rotation of the receiving device 36 about the central axis M2 is possible only from a certain force acting on the receiving device 36, at least by the eccentric position the crusher shaft 26 on the receiving device applied force exceeds, so that rotation of the receiving device is avoided in normal operation.
  • an overload for example by a non-breakable rock, on the crushing rollers 30, the force acting on the receiving device 36 by the breaking force exceeds the static frictional force between the receiving device 36 and the housing 12 and the receiving device is rotated about its central axis M2, so that Crushing gap 46 between the crushing rollers 30 is increased.
  • an overload protection is also realized, which allows an automatic enlargement of the crushing gap 46 from a certain force acting on the receiving device.
  • a connecting element 28 is shown schematically, which is arranged between the receiving devices.
  • the connecting element may be, for example, a mechanical connecting element, such as one or more coupling rods, in particular a rack.
  • the connecting element couples the movements of the receiving devices, so that they are each rotated by the same angle about the respective center axis M2.
  • Fig. 4 shows a schematic representation of a section of a non-inventive roll crusher 42 according to another embodiment.
  • a crushing roller 50 is shown schematically.
  • the crushing roller 50 is, as already explained with reference to the preceding figures, arranged in a housing 52.
  • the roll crusher 42 has a displacement device 54.
  • the displacement device 54 is sleeve-shaped with a circular cross-section and is arranged between the housing 52 and the receiving device 56 around the receiving device around.
  • the displacement device 54 has a central axis M3 about which it is rotatably mounted.
  • the receiving device 56 is arranged eccentrically relative to the displacement device 54 in this.
  • a rotation of the displacement device 54 about its central axis M3 causes a movement of the receiving device 56 in a circular path about the central axis M3 of the displacement device.
  • the arrangement of the displacement device 54 around the receiving device 56 around allows a separate overload protection, which is independent of the gap setting executable.
  • the displacement device 54 in normal operation, the in Fig. 4 shown position.
  • a screw connection the displacement device 54 is connected to the receiving device 56, so that a certain crushing gap is set.
  • the adjustment of the crushing gap can with the in Fig. 4 shown arrangement on the rotation of the receiving device 56 are set, wherein the overload protection is realized by means of the displacement device 54 separately from the Brechspalteingnagnal.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
EP15810671.6A 2014-12-19 2015-12-17 Brecheinrichtung Active EP3233287B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014018785.3A DE102014018785A1 (de) 2014-12-19 2014-12-19 Brecheinrichtung
PCT/EP2015/080168 WO2016097110A1 (de) 2014-12-19 2015-12-17 Brecheinrichtung

Publications (2)

Publication Number Publication Date
EP3233287A1 EP3233287A1 (de) 2017-10-25
EP3233287B1 true EP3233287B1 (de) 2018-09-12

Family

ID=54850202

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15810671.6A Active EP3233287B1 (de) 2014-12-19 2015-12-17 Brecheinrichtung

Country Status (4)

Country Link
EP (1) EP3233287B1 (zh)
CN (1) CN107107064B (zh)
DE (1) DE102014018785A1 (zh)
WO (1) WO2016097110A1 (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109225428A (zh) * 2018-09-17 2019-01-18 郑州莉迪亚医药科技有限公司 一种中草药二级研磨装置
CN111940036B (zh) * 2020-08-10 2022-07-19 武汉工程大学 一种瓦楞纸板粉碎回收机
CN112221600A (zh) * 2020-09-30 2021-01-15 唐山森普矿山装备有限公司 一种液压同步顶升调整中心距式双齿辊破碎机

Family Cites Families (9)

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Publication number Priority date Publication date Assignee Title
DE3725267A1 (de) * 1986-08-12 1988-03-24 Breitenbach Gmbh H Vorrichtung zur aufbereitung und zerkleinerung von, insbesondere pyrit- und/oder kalkhaltigen tonen oder aehnlichen rohstoffen fuer die keramikherstellung
JPH04131145A (ja) * 1990-09-21 1992-05-01 Ube Ind Ltd ロールプレス
DE9400427U1 (de) * 1993-01-15 1994-04-07 Kristensen, Aage Noergaard, Ulfborg Walzenschrotpresse
DE19715210C2 (de) * 1997-04-11 2001-02-22 Steinecker Maschf Anton Mahlspaltverstellung
CN202021063U (zh) * 2010-11-26 2011-11-02 盛金平 一种齿辊式破碎机
US8544774B1 (en) 2012-04-20 2013-10-01 Metso Minerals Industries, Inc. Roller crusher, and method of protecting a roller crusher from uncrushable objects
CN202951505U (zh) * 2012-10-18 2013-05-29 中华人民共和国北仑出入境检验检疫局 一种对辊破碎机
CN203598856U (zh) * 2013-12-06 2014-05-21 南充鸿福矿山机械有限公司 便于调整辊套对中的对辊破碎机
CN203678437U (zh) * 2013-12-25 2014-07-02 中国重型机械研究院股份公司 一种调隙式细碎对辊机

Non-Patent Citations (1)

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Title
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Also Published As

Publication number Publication date
CN107107064A (zh) 2017-08-29
DE102014018785A1 (de) 2016-06-23
WO2016097110A1 (de) 2016-06-23
CN107107064B (zh) 2019-03-15
EP3233287A1 (de) 2017-10-25

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