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EP2653225A1 - Testvorrichtung und Verfahren für einen Walzenbrecher oder eine Schleifmaschine - Google Patents

Testvorrichtung und Verfahren für einen Walzenbrecher oder eine Schleifmaschine Download PDF

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Publication number
EP2653225A1
EP2653225A1 EP12164956.0A EP12164956A EP2653225A1 EP 2653225 A1 EP2653225 A1 EP 2653225A1 EP 12164956 A EP12164956 A EP 12164956A EP 2653225 A1 EP2653225 A1 EP 2653225A1
Authority
EP
European Patent Office
Prior art keywords
crushing
pins
test device
materials
roll
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Withdrawn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
EP12164956.0A
Other languages
English (en)
French (fr)
Inventor
Andrzej Niklewski
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 Brasil Industria e Comercio Ltda
Original Assignee
Metso Brasil Industria e Comercio Ltda
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 Brasil Industria e Comercio Ltda filed Critical Metso Brasil Industria e Comercio Ltda
Priority to EP12164956.0A priority Critical patent/EP2653225A1/de
Priority to AU2013205192A priority patent/AU2013205192A1/en
Priority to PCT/IB2013/053097 priority patent/WO2013156966A1/en
Priority to CN 201320199472 priority patent/CN203274989U/zh
Priority to ARP130101299 priority patent/AR090754A1/es
Publication of EP2653225A1 publication Critical patent/EP2653225A1/de
Withdrawn legal-status Critical Current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
    • B02C4/02—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
    • B02C4/28—Details
    • B02C4/30—Shape or construction of rollers
    • B02C4/305—Wear resistant rollers

Definitions

  • the present invention relates to a test device and a test method for a roller crusher of the type which comprises a pair of crushing rolls rotating in opposite directions, towards each other, for crushing or pulverizing materials.
  • 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 is that an effective crushing may be achieved, even to very small grain sizes, with a reduced energy consumption compared to many other crushing techniques.
  • Another positive side is that the level of noise during the process is reduced compared to other crushing techniques.
  • test device for a roller crusher or grinder equipment which can provide information to be used for easily and efficiently classifying materials. It is a further object of the invention to provide a test device which is able to give indications on design parameters for a well working roller crusher or roller grinder installation to be used for crushing or grinding the tested materials.
  • a test device for a roller crusher or grinder of the type which comprises a pair of crushing rolls rotating in opposite directions towards each other for crushing or pulverizing material, which test device has a crushing surface with a number of pins protruding from the crushing surface, wherein at least one of the pins is connected to a strain gauge which is arranged for sensing a pressure exerted on the pin by materials being crushed against the crushing surface.
  • the crushing surface may be a crushing surface of a crushing roll in a roller crusher.
  • the crushing surface may be a crushing surface of a sector shaped roll part used for test purposes.
  • the functioning of such an equipment may be enhanced and the properties of the materials being crushed may be investigated in a simple and cost efficient manner.
  • the strain gauge may be connected to a data logging device for storing sensed values from the strain gauge. In this manner, these values are easily accessed for analysis and estimations of properties of the material.
  • the sensor for sensing the rotational position of the rolls may be connected to the data logging device to add information on the rotational position at which a certain pressure was sensed by the strain gauge.
  • the connection between the strain gauges and the data logging device may be achieved wirelessly or in other suitable manner.
  • the connection between the sensor and the data logging device may be achieved wirelessly or in other suitable manner.
  • the transfer of measured values to the data logging device may take place during the time when the measurement takes place, i.e. in a real time transfer, or the measured values from the strain gauges and/or the sensor may be stored locally in a suitable storage medium and be retrieved at a convenient time point.
  • a test method for a roller crusher of the type which comprises a pair of crushing rolls rotating in opposite directions for crushing or pulverizing material, comprising providing a number of pins protruding from a crushing surface, connecting at least one of the pins to a strain gauge, crushing materials against the crushing surface, and sensing the pressure exerted on the pin(s) connected to the strain gauge(s) by the materials during the crushing.
  • the sensed pressure may be used for determining a pressure build-up created by rotation of the rolls. This information may also be used when designing a roller crusher and when analyzing properties of the materials being crushed.
  • At least one of the pins 2 is connected to a strain gauge 5, which is arranged to sense the amount of force exerted on the pin or pins 2' which are connected to strain gauges 5.
  • the pins 2 are made of a material such as steel which is harder than the crushing surface 4, which can be made of steel or other metallic or ceramic material.
  • the pins are placed over the entire crushing surface and then strengthen the crushing surface in two ways. To start with, the materials that are crushed against the crushing surface primarily bear against the pins and not the crushing surface, which means that the crushing surface is not as subjected to the wear and tear of the materials. Secondly, smaller particles in the materials being crushed will get caught between the pins and create a protecting layer of materials on the crushing surface.
  • the test device can also be part of a sector shaped roll part 10 which is used for test purposes in a specially designed test equipment 11 which is shown in Fig. 4 and 5 .
  • the crushing surface 4 is then the crushing surface of the sector shaped roll part 10.
  • This sector shaped roll part 10 is rotatably mounted opposite a similar sector shaped roll part 12 which is rotatable in an opposite direction.
  • the sector shaped roll parts 10 and 12 are arranged to rotate from a first position as shown in Fig. 4 , to a second position as shown in Fig. 5 , as materials M are fed into the gap 9 and crushed between the roll parts 10 and 12 and against each other during a test session.
  • strain gauges 5 which are connected to the pins 2' will then, during that test session, sense the force which is exerted upon the pins 2' by the materials M.
  • two test devices could be used, one on each sector shaped roll part 10 and 12.
  • the number of pins 2' connected to strain gauges 5 as well as the positioning of these among the pins 2 in total may be decided based on the axial position on the roll.
  • the materials M being crushed behave differently at the centre of the roll, at the ends of the roll and in positions there between. The influence of feed, distribution, edge effects etc. may thus be studied.
  • a sensor (not shown) may in addition be arranged for sensing the rotational position of the rolls or roll parts, and the output from this sensor may be combined with the information from the strain gauges in order to determine pressure curves showing how the pressure on the pins 2' changes as the roll 6 or roll part 10 is rotated.
  • step 14 at least one of the pins is connected to a strain gauge.
  • step 15 materials are crushed against the crushing surface, as the materials are fed into a gap between two crushing rolls or between two sector shaped roll parts in a test equipment.
  • step 16 the pressure exerted on the at least one pin which is connected to the strain gauge is sensed by the strain gauge.
  • the sensed or measured strain values can then be saved by a data logging device and be used for analyzing the interaction between the materials and the test device.
  • the strain values may also, as mentioned above, be combined with information on the rotational position of the rolls or roll parts.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
EP12164956.0A 2012-04-20 2012-04-20 Testvorrichtung und Verfahren für einen Walzenbrecher oder eine Schleifmaschine Withdrawn EP2653225A1 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP12164956.0A EP2653225A1 (de) 2012-04-20 2012-04-20 Testvorrichtung und Verfahren für einen Walzenbrecher oder eine Schleifmaschine
AU2013205192A AU2013205192A1 (en) 2012-04-20 2013-04-14 Test device and method for a roller crusher or grinder
PCT/IB2013/053097 WO2013156966A1 (en) 2012-04-20 2013-04-19 Test device and method for a roller crusher or grinder
CN 201320199472 CN203274989U (zh) 2012-04-20 2013-04-19 用于辊式破碎机或磨机的测试装置
ARP130101299 AR090754A1 (es) 2012-04-20 2013-04-19 Dispositivo y metodo de prueba para una trituradora o rectificadora de rodillos

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12164956.0A EP2653225A1 (de) 2012-04-20 2012-04-20 Testvorrichtung und Verfahren für einen Walzenbrecher oder eine Schleifmaschine

Publications (1)

Publication Number Publication Date
EP2653225A1 true EP2653225A1 (de) 2013-10-23

Family

ID=48536967

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12164956.0A Withdrawn EP2653225A1 (de) 2012-04-20 2012-04-20 Testvorrichtung und Verfahren für einen Walzenbrecher oder eine Schleifmaschine

Country Status (5)

Country Link
EP (1) EP2653225A1 (de)
CN (1) CN203274989U (de)
AR (1) AR090754A1 (de)
AU (1) AU2013205192A1 (de)
WO (1) WO2013156966A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017102736A1 (de) * 2015-12-14 2017-06-22 Think And Vision Gmbh Vorrichtung und verfahren zum analysieren von bohrschlamm
EP4042137A4 (de) * 2019-10-04 2024-03-13 Minpraxis Solutions Ltd. Gesteinshärtemessung

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107233959A (zh) * 2017-06-21 2017-10-10 河池市森机械有限责任公司 辊式破碎机
CN108097372A (zh) * 2018-01-30 2018-06-01 中国矿业大学 一种齿环可调式破碎机试验测试平台
MX2022010212A (es) * 2020-02-18 2022-11-10 Geopyoerae Oy Disposición de prueba y método para probar la rotura y las propiedades mecánicas de partículas de roca.
CN112454749A (zh) * 2020-11-06 2021-03-09 湖南省新基源新材料科技有限公司 一种塑料颗粒的破碎装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2758042A1 (de) * 1977-12-24 1979-06-28 Peter Voelskow Zerkleinerungsmaschine fuer sperrige abfaelle
GB2117268A (en) * 1982-03-31 1983-10-12 Parry And Associates Limited J Crushing machinery
DE3520929C1 (de) * 1985-06-07 1986-12-11 Gerhard Dr.-Ing. 1000 Berlin Lechler Walze
US5078327A (en) * 1987-05-19 1992-01-07 Kemetter Georg L Device for the processing of materials
US5562027A (en) * 1995-02-16 1996-10-08 Stowe Woodward Licensco, Inc. Dynamic nip pressure and temperature sensing system
DE102007004004A1 (de) * 2007-01-26 2008-07-31 Polysius Ag Walzenmühle
US20110259983A1 (en) * 2010-04-23 2011-10-27 Flsmidth A/S Wearable Surface For A Device Configured For Material Comminution

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2758042A1 (de) * 1977-12-24 1979-06-28 Peter Voelskow Zerkleinerungsmaschine fuer sperrige abfaelle
GB2117268A (en) * 1982-03-31 1983-10-12 Parry And Associates Limited J Crushing machinery
DE3520929C1 (de) * 1985-06-07 1986-12-11 Gerhard Dr.-Ing. 1000 Berlin Lechler Walze
US5078327A (en) * 1987-05-19 1992-01-07 Kemetter Georg L Device for the processing of materials
US5562027A (en) * 1995-02-16 1996-10-08 Stowe Woodward Licensco, Inc. Dynamic nip pressure and temperature sensing system
DE102007004004A1 (de) * 2007-01-26 2008-07-31 Polysius Ag Walzenmühle
US20110259983A1 (en) * 2010-04-23 2011-10-27 Flsmidth A/S Wearable Surface For A Device Configured For Material Comminution

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017102736A1 (de) * 2015-12-14 2017-06-22 Think And Vision Gmbh Vorrichtung und verfahren zum analysieren von bohrschlamm
EP4042137A4 (de) * 2019-10-04 2024-03-13 Minpraxis Solutions Ltd. Gesteinshärtemessung

Also Published As

Publication number Publication date
WO2013156966A1 (en) 2013-10-24
AU2013205192A1 (en) 2013-11-07
CN203274989U (zh) 2013-11-06
AR090754A1 (es) 2014-12-03

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