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EP2032260A1 - Broyeur à rouleaux - Google Patents

Broyeur à rouleaux

Info

Publication number
EP2032260A1
EP2032260A1 EP07730281A EP07730281A EP2032260A1 EP 2032260 A1 EP2032260 A1 EP 2032260A1 EP 07730281 A EP07730281 A EP 07730281A EP 07730281 A EP07730281 A EP 07730281A EP 2032260 A1 EP2032260 A1 EP 2032260A1
Authority
EP
European Patent Office
Prior art keywords
grinding
edge
roller
plate
roller mill
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.)
Granted
Application number
EP07730281A
Other languages
German (de)
English (en)
Other versions
EP2032260B1 (fr
Inventor
Christian Neumann
Franz-Josef Zurhove
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
Polysius 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 Polysius AG filed Critical Polysius AG
Publication of EP2032260A1 publication Critical patent/EP2032260A1/fr
Application granted granted Critical
Publication of EP2032260B1 publication Critical patent/EP2032260B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
    • B02C15/04—Mills with pressed pendularly-mounted rollers, e.g. spring pressed

Definitions

  • the invention relates to a roller mill with a grinding table and at least one rolling on the grinding table grinding roller, wherein to be comminuted millbase is derived after the stress in a gap formed between grinding plate and grinding roller over the edge of the grinding table.
  • the mill In order to achieve high throughputs with low mass-related labor requirements, the mill must be operated either with the highest possible grinding table speed or with a smaller distance between the grinding rollers - ie with a larger number of grinding rollers.
  • the smoothness of the roller mill is to be regarded as limiting here. So that the ground material can not escape from the gap between grinding plate and grinding roller during the grinding process and thus is optimally stressed, usually a so-called jam is provided.
  • a Rollenquetschmühle is described in the between the two grinding rollers also a stationary arranged stowage wall is provided, which leads in the direction of rotation of the grinding table to the grinding gap of a grinding roller and whose height allows a flow around the ground material-gas mixture at least at its upper edge.
  • This baffle wall has the effect of a coarse Vorsichtung, because the air flow around the finer parts lead because of their greater levitation capacity around the baffle up and down, while the coarser portions are deflected and fed back to the shortest route to the grinding. In this way, the repeated overrolling of the goods should be eliminated with finer proportions.
  • JP 05 007 786 A is known a vertical mill with a co-rotating with the grinding table, stationary jam edge, wherein the jam edge extends over the entire circumference of Mahltellerrandes.
  • the invention is based on the object to further develop the roller mill to the effect that higher throughputs can be achieved with low mass-related work needs.
  • the roller mill according to the invention has a grinding plate and at least one rolling on the plate grinding roller, to be comminuted millbase is derived after the stress in a gap formed between the grinding plate and grinding roller over the edge of the grinding plate and further provided with a non-co-rotating with the grinding table, stationary jamming edge is, which is provided at least on the edge of the grinding plate facing side of the grinding roller and forms at least a part of an increase of the edge of the grinding plate.
  • the increase in the edge of the grinding plate is higher in the region of the grinding rollers than in the region between the grinding rollers, in order to prevent a radial escape of the material to be ground from the gap formed between the grinding plate and the grinding roller.
  • the material to be ground should not escape from the grinding gap in the area of the grinding rollers but be exposed to complete stress by the grinding rollers.
  • the discharge of the finished ground material then takes place only in a range between the grinding material just crushing the grinding roller and the next grinding roller. Due to the fact that no or hardly any ground material can escape in the area of the grinding rollers, an optimal load is guaranteed.
  • the shredded material should leave the plate as quickly as possible and be fed to the sighting. It is known that fine fractions adversely affect the stability of the grinding bed and lead to vibrations. Due to the physical relationship of available residence time between two crushing operations with the centrifugal forces and the plate contour including a mitrotierenden Staukante and the flow behavior of the ground material, the trajectories of the particles and thus the proportion of already used Guts, leaving the plate and the proportion, the result the following comminution is supplied. The residence time and the centrifugal forces are determined by the distance and the radial position of the grinding rollers and the speed of the plate.
  • the flow properties of the regrind are primarily dependent on the type (grain, mineralogy, etc.), the fineness and moisture and can only be influenced to a limited extent.
  • the height of the jammed edge has a strong influence on the railway lines.
  • the storage edge must have variable heights over the circumference. In this way, higher speeds of the grinding table and thus higher throughput rates are possible.
  • the storage edge is adjustable in the radial and / or vertical direction. Also, the storage edge may have different heights over their length.
  • Fig. 2 is a schematic sectional view taken along the line A-A of Fig. 1 and
  • Fig. 3 is a slightly more detailed plan view of another roller mill.
  • the roller mill shown in FIGS. 1 and 2 consists essentially of a grinding table 1 and at least one grinding roller 2 rolling on the grinding table. In the illustrated embodiment, four grinding rollers 2 are shown. In the context of the invention, but it would also be conceivable, for example, to provide a roller mill with two or six grinding rollers.
  • the grinding table 1 is rotatably driven about a vertical axis Ia.
  • the grinding rollers 2 rest with their own weight on the grinding table 1 or can be acted upon by a suitable device with an additional contact force.
  • the millbase to be comminuted is fed centrally via a feed device 3 on the rotating grinding table 1 and passes from there by centrifugal force to the outside and is detected by the grinding rollers 2.
  • a jamming edge 4 not rotating with the grinding plate ie stationarily arranged, is provided on the side of the grinding roller 2 facing the edge 1b of the grinding plate 1.
  • the storage edge 4 can be adjustable by suitable means both in the radial direction (double arrow 5) and in the vertical direction (double arrow 6).
  • a provided at the outer edge Ia mitrotierendes with the grinding table 1 jam ring 7 is provided.
  • Stauringerhöhungen be provided. It is also conceivable that the storage edge has different heights over its length in the circumferential direction of the grinding table 1.
  • FIG. 3 shows a somewhat more detailed plan view of the roller mill, from which, in particular, a conceivable shape of the stationary edge of the stowage 4 emerges.
  • the adjacent area 4a of the stopping edge 4 is formed essentially parallel to the grinding roller.
  • the front in the direction of rotation 9 of the grinding plate 1 area 4b of the Staukante is slightly bent or bent and follows approximately the contour of Mahltellerrandes Ib.
  • the sufficiently comminuted regrind passes further outward by centrifugal force and is discharged via the edge 1b of the grinding table or via the storage ring 7. Due to the increased congestion in the area of Grinding roller 2 ensures that the material to be ground is subjected to sufficient comminution by the grinding roller before it is discharged over the edge of the grinding table 1. In addition, it is ensured by the much lower storage ring 7 or possibly not provided at all Stauring that in particular the fine material is discharged before it is again rolled over. This has a positive effect on the smoothness of the machine, so that higher speeds of the grinding table 1 can be driven and thus a higher throughput is achieved.

Landscapes

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

Abstract

L'invention concerne un broyeur à rouleaux avec un plateau de broyage et au moins un rouleau de broyage roulant sur le plateau de broyage. Le produit à broyer est dévié par-dessus le bord du plateau de broyage après avoir été forcé dans une fente formée entre le plateau de broyage et le rouleau de broyage. Une arête de blocage stationnaire, ne tournant pas avec le plateau de broyage, est disposée au moins sur le côté du rouleau de broyage tourné vers le bord du plateau de broyage et forme au moins une partie d'un rehaussement du bord du plateau de broyage. Le rehaussement du bord du plateau de broyage est dans ce cas plus haut dans la région des rouleaux de broyage que dans la région entre les rouleaux de broyage, afin d'éviter une fuite du produit de broyage hors de la fente formée entre le plateau de broyage et le rouleau de broyage.
EP07730281A 2006-06-21 2007-06-20 Broyeur à rouleaux Not-in-force EP2032260B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006028547A DE102006028547A1 (de) 2006-06-21 2006-06-21 Rollenmühle
PCT/EP2007/056165 WO2007147860A1 (fr) 2006-06-21 2007-06-20 Broyeur à rouleaux

Publications (2)

Publication Number Publication Date
EP2032260A1 true EP2032260A1 (fr) 2009-03-11
EP2032260B1 EP2032260B1 (fr) 2012-01-11

Family

ID=38480477

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07730281A Not-in-force EP2032260B1 (fr) 2006-06-21 2007-06-20 Broyeur à rouleaux

Country Status (7)

Country Link
US (1) US7938349B2 (fr)
EP (1) EP2032260B1 (fr)
JP (1) JP5265534B2 (fr)
CN (1) CN101421043B (fr)
DE (1) DE102006028547A1 (fr)
DK (1) DK2032260T3 (fr)
WO (1) WO2007147860A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8015343B2 (en) * 2008-08-08 2011-09-06 Amazon Technologies, Inc. Providing executing programs with reliable access to non-local block data storage
CN102284322B (zh) * 2011-08-16 2012-09-05 天津苏美尔环保投资有限公司 一种立式辊磨机
CN103521307B (zh) * 2013-10-25 2016-04-27 湖南中宏重型机器有限公司 立式环磨机组合式锤轮
CN103521309A (zh) * 2013-10-25 2014-01-22 湖南中宏重型机器有限公司 立式环磨机组合式碾环
CN108126807A (zh) * 2018-01-19 2018-06-08 福建志坤能源科技开发有限公司 一种氧化铜用研磨装置
DE102019200191A1 (de) * 2018-06-08 2019-12-12 Sms Group Gmbh Trockenaufbereitung von Kaolin bei der Herstellung von HPA
CN109092393A (zh) * 2018-08-15 2018-12-28 佛山阳途科技有限公司 一种多辊压麦机
US10758912B1 (en) * 2019-04-11 2020-09-01 Gene P. Guthmiller Material processing system
CN118437461A (zh) * 2024-06-05 2024-08-06 中材（天津）粉体技术装备有限公司 一种用于砂石系统的碾磨制砂机

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1507579B1 (de) * 1966-05-20 1970-09-24 Loesche Kg Vorsichteinrichtung fuer Walzenmuehlen
DE3642814C2 (de) * 1986-12-15 1996-10-10 Pfeiffer Ag Geb Sperrvorrichtung
JP2754797B2 (ja) * 1989-11-07 1998-05-20 宇部興産株式会社 竪型粉砕機
JP2868103B2 (ja) * 1991-07-02 1999-03-10 宇部興産株式会社 竪型粉砕機
JP2618777B2 (ja) * 1991-08-02 1997-06-11 宇部興産株式会社 竪型粉砕機
JP2882132B2 (ja) * 1991-09-03 1999-04-12 宇部興産株式会社 竪型粉砕機
JP2704477B2 (ja) * 1992-03-09 1998-01-26 宇部興産株式会社 竪型粉砕機
JPH0747296A (ja) * 1993-08-10 1995-02-21 Ube Ind Ltd 竪型粉砕機

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007147860A1 *

Also Published As

Publication number Publication date
WO2007147860A1 (fr) 2007-12-27
US7938349B2 (en) 2011-05-10
DE102006028547A1 (de) 2007-12-27
CN101421043B (zh) 2010-06-02
US20090200409A1 (en) 2009-08-13
CN101421043A (zh) 2009-04-29
JP5265534B2 (ja) 2013-08-14
EP2032260B1 (fr) 2012-01-11
DK2032260T3 (da) 2012-05-07
JP2009541027A (ja) 2009-11-26

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