EP0879086B1 - Wälzmühle - Google Patents

Wälzmühle Download PDF

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Publication number
EP0879086B1
EP0879086B1 EP96943103A EP96943103A EP0879086B1 EP 0879086 B1 EP0879086 B1 EP 0879086B1 EP 96943103 A EP96943103 A EP 96943103A EP 96943103 A EP96943103 A EP 96943103A EP 0879086 B1 EP0879086 B1 EP 0879086B1
Authority
EP
European Patent Office
Prior art keywords
foundation
frame
mill
foundation frame
gear
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.)
Expired - Lifetime
Application number
EP96943103A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0879086A1 (de
Inventor
Horst Brundiek
Armin Neises
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.)
Loesche GmbH
Original Assignee
Loesche 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 Loesche GmbH filed Critical Loesche GmbH
Publication of EP0879086A1 publication Critical patent/EP0879086A1/de
Application granted granted Critical
Publication of EP0879086B1 publication Critical patent/EP0879086B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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, in particular a Airflow mill in modular design, according to the preamble of Claim 1.
  • Modular roller mills are relatively large mills with two, three, four or more on a rotating grinding bowl rolling grinding rollers.
  • a modular system developed roller mills is a building block Force unit used, consisting of a stand with rocker arm bearings, Rocker arm, complete grinding roller, rocker arm seal compared to a mill housing and a loading unit from a suspension cylinder with hydraulic accumulators exists and a relatively small grinding bowl twice, a middle grinding bowl triple and one large grinding bowl can be assigned four or more times can.
  • the modular design enables without a special one constructive effort an adaptation to the respective need.
  • FIG. 1 shows a known roller mill in sections shown in a side view and without housing. Grinding rollers 7, each with a rocker arm 8 pivotable about a rocker arm axis 28 of a stand 2 are stored, roll on a through a drive shaft 27 grinding bowl 3 driven by a gear 4.
  • a roller mill with two or more grinding rollers, of which only one grinding roller 7 is visible. Shown is also a rocker arm unit from one Rocker arm cylinder 6 and a hydraulic accumulator or one Gas spring 16.
  • the stand 2, each of which is a grinding roller 7 are assigned, are at their lower end in an area a mill foundation 13, which is usually a Concrete foundation is on a steel foundation frame 5 attached, e.g. screwed and / or welded.
  • the known roller mills each have a foundation frame 5 per stand 2, which to one of a longitudinal axis 14 of the mill defined by the mill center is.
  • a roller mill with two grinding rollers 7 results yourself by extending the foundation frame 5 of the two diametrically arranged uprights 2 one from the foundation frame 5 of a stand 2 with a gear foundation frame 11 connected in the mill center and to the foundation frame 5 of the other stand 2 continuous mill foundation frame 18, usually the mill gear 4 over an intermediate plate or a gear base plate 12 with the Gear foundation frame 11 and the continuous mill foundation frame 18 is anchored.
  • a star-shaped mill foundation frame 18 For a roller mill with three grinding rollers and with more than four grinding rollers result in a star-shaped mill foundation frame 18.
  • Such a star-shaped mill foundation frame 18 is a schematic diagram in FIG. 3 shown. This Figure 3 is in connection with the invention Solution described below.
  • a roller mill with four grinding rollers 7 results in a cruciform mill foundation frame 18, which also as a special form of a star-shaped mill foundation frame can be viewed.
  • roller mills and in particular airflow roller mills are already characterized by high grinding capacities, there are limits to further enlargement according to the "cranesbill principle". This is due to the fact that, in the case of roller mills of larger diameter and when using more than two grinding rollers with the required production output, for example the drive power also has to be increased and the grinding bowl must also be increased in height in addition to its diameter. It is necessary to use gear units with a larger overall height H G2 (see Figure 2).
  • the overall height H M2 of the grinding bowl 3 also increases because of the fluid space to be enlarged under the grinding bowl, since in the case of airflow roller mills, the volume flows also increase with increasing production output.
  • the overall height H S1 of the stand 2 thus increases by the amount H ⁇ S and reaches a height of H S2 according to FIG. 2.
  • FIGS. 1 and 2 A comparison of FIGS. 1 and 2 with regard to the overall heights of the gears 4, the grinding bowls 3 and the stand 2 reveals that the increase in the height H ⁇ S of the stator 2 according to FIG. 2 is due to the increase in the height of the gear 4 and the grinding bowls 3 of the larger roller mill of FIG. 2.
  • the invention has for its object to provide a roller mill, which when using the known and previously stand systems or modules with proven, in particular a constant level while safeguarding the necessary stability used an enlargement of the roller mill and, in particular, connected to the magnification of the bowl diameter extraordinary increase the grinding bowl and the gearbox and thus the grinding capacity.
  • the invention is based on the basic idea of a suitable one constructive design of the foundation-side frame construction the stand of a roller mill also for one necessary increase in height of gearbox and / or Grinding bowl to achieve sufficient stability.
  • a roller mill with two, three or more milling drum-stand modules a surrounding foundation frame on which all the foundation frames of the stands together connects.
  • a particularly torsionally rigid foundation frame is determined by the respective foundation framework of each Stand and formed by connecting frame parts, the connecting frame parts each between two adjacent Foundation frame of the stand are provided.
  • a stable and extremely torsion-resistant construction stand and foundation frame is encircled by a closed and preferably by a polygonal arrangement the foundation frame of the stands and the connecting frame parts guaranteed.
  • a connecting frame part or a foundation frame connecting element to one encircling, closed bandage, or to a U-shaped or horseshoe-shaped bandage put together torsion and bending moments that are at the foot of a each stand is introduced into the foundation frame, supported individually or in cooperation.
  • a separate formation of the rotating one is particularly useful Stand foundation frame and a gearbox foundation frame.
  • the gear base frame is arranged in the mill center, ie in the area of the longitudinal axis of the mill.
  • the overall height which can be composed of the height H M2 of the grinding bowl and H G2 of the gear (Fig. 2), such a frame-side foundation arrangement is created that a stand of conventional height and required stability and torsional rigidity can be used.
  • a polygon frame in the mill foundation the mill which is the gear foundation frame in one surrounding defined distance in a different Height level to be arranged to the transmission base frame.
  • the known solution can only be used in small mills applied where there is no need to the roller units together via a connecting To support the foundation frame against each other.
  • Mushroom-shaped mill foundations with a raised area below the mill gear are known.
  • the base frame of the stand is not described.
  • only the mushroom-shaped mill foundation a foundation frame in the area of the gearbox on, while the forces absorbed by the stands are direct and introduced into the mill foundation without a steel frame become.
  • the all-round foundation frame is in an appropriate training in a compared to the gearbox foundation frame or a gear footplate located higher concrete wall.
  • gear foundation frame on an approximately mushroom-shaped foundation increase compared to the To arrange polygon frames of the stands with a lower level.
  • Foundation frame training are the possibility of separation this ring-shaped, polygonal or U-shaped stand foundation frame from a particularly centrally arranged Gearbox foundation frame and the bending and torsional stiffness Manufacture of a steel girder foundation frame for special large roller mills, so that their bending and torsional forces not just be introduced into reinforced concrete have to.
  • reinforcement bars arranged in a ring or basket-like manner be used instead of steel beams.
  • the overall height of the Mill stand is limited to a minimum, which is ensured by the rocker arm and the associated hydropneumatic Suspension system is specified, there is a limitation the bending and torsional moments introduced into the mill stand. The result is improved stability and strength the stand and the roller mill. Additional advantages are a possible use of smaller machine tools for the mechanical processing due to the lower weight and the reduced overall height as well as a reduction in Manufacturing costs.
  • a major advantage is the possible compensation the heights of the gear and bowl compared to the height the stand over the foundation, for example over a Foundation increase or mushroom-shaped design given.
  • Fig. 1 is a known roller mill in a side view with two grinding rollers, of which only one Grinding roller 7 and a stand 2 with rocker arm axis 28 and rocker arm 8 and with a hydropneumatic suspension 6, 16 is shown. At its lower end is the Stand 2 on a foundation frame 5 of a mill foundation 13 attached.
  • the foundation frame 5 is up to Mill center, i.e. up to a gear foundation frame 11 extends and forms with the not shown, diametrically arranged foundation frame 5 of the second grinding roller-stand unit a continuous mill foundation frame 18 with a uniform height level.
  • FIG. 2 shows a roller mill with four grinding rollers, of which only two grinding rollers 7, but only one stand 2 with grinding roller 7 are visible. Identical features are provided with identical reference symbols.
  • the four-roll mill according to FIG. 2 illustrates the need for an extension of the stand by the difference H ⁇ S so that the stand 2 reaches the required height H S2 .
  • the necessity is due to a larger overall height H M2 of the grinding bowl 3 and a greater overall height H G2 of the gear 4 compared to FIG.
  • Stand 2 With an extension of a shown in Fig. 2 Stand 2 are connected to instabilities, so that operational safety can be at risk.
  • FIGS. 3 and 4 The underlying means-effect relationship is intended to be shown in FIGS. 3 and 4 the invention will be clarified.
  • 3 which, as from the stand 2nd shows that it should be a three-roll mill has one hitherto usual star-shaped mill foundation frame 18, that of the base frame 5 of the stand 2 and a gear base frame 11 of a transmission, not shown is formed.
  • the stand 2 have according to the known and described in connection with Fig. 2 constructive Solution concept a larger height and one resulting in lower torsional rigidity and stability than the stand 2 of a trained according to the invention Rolling mill according to FIG. 4.
  • a circumferential foundation frame 9 is provided according to the invention, of a centrally located gear foundation frame 11 surrounds at a distance and separated in terms of frame.
  • Fig. 4 shows the separation of the transmission base frame according to the invention 11 and the circumferential foundation frame 9, which represents a stable stand-base frame composite.
  • the transmission foundation frame 11 and the rotating one Foundation frames 9 can be used independently of one another in mill foundation areas arranged with different heights be so that the use of the stand known and tried Height is possible.
  • Fig. 5 shows in a plan view as a built-in revolving Foundation frame 9 a polygon frame 10 one Rolling mill with three grinding rollers.
  • the polygon frame 10 has three corner areas 22 in which the foundation frame 5 is arranged are.
  • stands (not shown) attached via their stand feet 20, for example screwed.
  • To form a torsionally rigid polygon frame 10 are between the individual foundation frames 5, which can be rectangular, for example, Connection frame parts 17 arranged.
  • a gear base frame 11 provided, which on the foundation frame side with the Polygon frame 10 is not connected. So that's it Possibility to create the polygon frame 10 and Gear foundation frame 11 according to requirements with a different height level in a mill foundation 13 (see Fig. 7 or 8).
  • FIG. 6 is a four-roll mill as a further embodiment shown.
  • corner areas 22 are again arranged approximately rectangular-shaped foundation frame 5, the connecting frame parts 17 to a polygon frame 10 are connected.
  • the connecting frame parts 17 can laid almost parallel in a foundation area 13, 15 Steel beams 19, in particular double-T beams, exist.
  • the polygon frame 10 is formed as a wall Foundation increase 15 arranged.
  • the transmission foundation frame 11 is much lower in a corresponding trained area 25 of the mill foundation 13.
  • a larger and higher roller bowl 3 and / or a larger one and higher gear 4 are used, advantageously Stand 2 known and tried size used can be.
  • Fig. 8 shows a mushroom-like mill foundation 13 with a elevated level in area 15 of a transmission foundation frame 11.
  • the same components are again with identical reference numerals Mistake.
  • stands of the same size 2 can a smaller roller mill can be built modularly, at which the roller bowl 3 and the gear 4 a smaller Have height and therefore an elevated area 15 of Mill foundation 13 in the area of the gear foundation frame 11 is provided.
  • a development of a circumferential foundation frame 9 is shown in a perspective view in FIG. 9.
  • a large mill with four grinding rollers (not shown) has as a circumferential foundation frame 9 a U-shaped or horseshoe-shaped frame 21.
  • This U-shaped frame is in a foundation wall as an elevated area 15 of the mill foundation 13 added and includes two as Corner areas 22 of the foundation frame 5 of the stand 2 and two foundation frames 5 arranged as end regions 24 the stand 2.
  • the U-shaped or horseshoe-shaped formation of the wall-like, raised area 15 of the mill foundation 13 results from an assembly notch 26, which serves to assemble the mill gear.
  • the assembly slot 26 forms an interruption of the otherwise closed polygon frame 10.
  • the assembly notch is on the foundation frame side 26 of two foundation frames arranged as end regions 24 5 of the stand 2 limited.
  • a possible weakening of the torsionally rigid can advantageously Foundation frame association by one or more Support traverses 29 are compensated.
  • These support beams 29, which is particularly analogous to the steel beams of the Connecting frame parts 17 are formed and with the Steel beams 23 of the base frame 5 of the stand 2 releasable and thus can be connected in a demountable manner after a Installation of the gearbox, for example above or below a pipe extension of the drive coupling between the mill motor and the mill gear (not shown) be arranged.
  • the support crossbars 29 as a removable Connecting frame part can be used U-shaped or horseshoe-shaped foundation frame 21 again to a closed, all-round and polygonal foundation frame association be formed.
  • a reinforced concrete area can be basket-like have arranged steel bars.
EP96943103A 1996-02-01 1996-12-12 Wälzmühle Expired - Lifetime EP0879086B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19603655 1996-02-01
DE19603655A DE19603655A1 (de) 1996-02-01 1996-02-01 Wälzmühle
PCT/EP1996/005574 WO1997027943A1 (de) 1996-02-01 1996-12-12 Wälzmühle

Publications (2)

Publication Number Publication Date
EP0879086A1 EP0879086A1 (de) 1998-11-25
EP0879086B1 true EP0879086B1 (de) 1999-08-25

Family

ID=7784279

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96943103A Expired - Lifetime EP0879086B1 (de) 1996-02-01 1996-12-12 Wälzmühle

Country Status (9)

Country Link
US (1) US6021968A (ja)
EP (1) EP0879086B1 (ja)
JP (1) JP3901733B2 (ja)
BR (1) BR9612486A (ja)
DE (2) DE19603655A1 (ja)
DK (1) DK0879086T3 (ja)
ID (1) ID15873A (ja)
TW (1) TW325417B (ja)
WO (1) WO1997027943A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005030145B4 (de) * 2005-06-28 2007-10-04 Loesche Gmbh Sicherheitssystem für eine Wälzmühle

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10343218B4 (de) * 2003-09-12 2006-05-04 Loesche Gmbh Sicherheitssystem für eine Wälzmühle und Verfahren zur Herstellung von Zement
DE102004062400B4 (de) * 2004-12-23 2006-10-26 Loesche Gmbh Wälzmühle in Modulbauweise
DE102006050205B4 (de) 2006-10-25 2013-03-21 Gebr. Pfeiffer Ag Sicherheitssystem für Wälzmühlen
DE102007009723A1 (de) * 2007-02-28 2008-09-04 Polysius Ag Rollenmühle
US20090008487A1 (en) * 2007-07-03 2009-01-08 Riley Power, Inc. Loading system for vertical material size reduction system
DE102008015141A1 (de) 2008-03-20 2009-11-05 Gebr. Pfeiffer Ag Wälzmühle
DE202009004025U1 (de) 2009-03-19 2010-08-12 Loesche Gmbh Hydraulikanordnung für Wälzmühlen
JP5345004B2 (ja) * 2009-06-15 2013-11-20 川崎重工業株式会社 竪型ローラミル
DE202009016825U1 (de) 2009-12-11 2010-04-08 Gebr. Pfeiffer Ag Wälzmühle
DE102010031442A1 (de) * 2010-07-16 2012-01-19 Hitachi Power Europe Gmbh Spannsystem, insbesondere hydropneumatisches Spannsystem, einer Wälzmühle
CN102671750B (zh) * 2011-03-14 2015-07-15 莱歇研磨机械制造(上海)有限公司 一种辊式磨机基础框架
FR2979838B1 (fr) * 2011-09-09 2016-01-15 Cie Engrenages Et Reducteurs Messian Durand Entrainement de broyeur vertical a plusieurs entrainements principaux
EP2777814B1 (en) 2011-11-11 2019-05-01 Kawasaki Jukogyo Kabushiki Kaisha Vertical roller mill
CN109127005B (zh) * 2018-08-31 2021-06-29 江苏鹏飞集团股份有限公司 互相备用的多辊水泥立式辊磨机
JP7321153B2 (ja) * 2019-01-17 2023-08-04 ロエシェ ゲーエムベーハー ローラレバーモジュール
JP7379496B2 (ja) 2019-04-04 2023-11-14 ロエシェ ゲーエムベーハー 力伝達用のレバーシステム

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE153958C (ja) *
DE2128929C3 (de) * 1971-06-11 1974-06-27 Loesche Hartzerkleinerungs- Und Zementmaschinen Kg, 4000 Duesseldorf Walzenmühle
DD157393A3 (de) * 1981-03-16 1982-11-10 Hartmut Verch Waelzmuehle
DE3921986C1 (ja) * 1989-07-04 1990-10-25 Loesche Gmbh, 4000 Duesseldorf, De

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005030145B4 (de) * 2005-06-28 2007-10-04 Loesche Gmbh Sicherheitssystem für eine Wälzmühle

Also Published As

Publication number Publication date
JP3901733B2 (ja) 2007-04-04
DE59602918D1 (de) 1999-09-30
EP0879086A1 (de) 1998-11-25
DE19603655A1 (de) 1997-08-07
TW325417B (en) 1998-01-21
WO1997027943A1 (de) 1997-08-07
BR9612486A (pt) 1999-07-13
ID15873A (id) 1997-08-14
DK0879086T3 (da) 2000-03-27
US6021968A (en) 2000-02-08
JP2000502945A (ja) 2000-03-14

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