EP0562289A2 - Broyeur à rouleaux - Google Patents

Broyeur à rouleaux Download PDF

Info

Publication number
EP0562289A2
EP0562289A2 EP93102731A EP93102731A EP0562289A2 EP 0562289 A2 EP0562289 A2 EP 0562289A2 EP 93102731 A EP93102731 A EP 93102731A EP 93102731 A EP93102731 A EP 93102731A EP 0562289 A2 EP0562289 A2 EP 0562289A2
Authority
EP
European Patent Office
Prior art keywords
grinding
roller carrier
roller
guide
horizontal
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
EP93102731A
Other languages
German (de)
English (en)
Other versions
EP0562289A3 (fr
EP0562289B1 (fr
Inventor
Ludger Ing. Lohnherr (Grad.)
Herbert Dipl.-Ing. Pingel
Ludger Dipl.-Ing. Kimmeyer
Heinz-Dieter Dipl.-Ing. Baldus
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
Krupp 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 Krupp Polysius AG filed Critical Krupp Polysius AG
Publication of EP0562289A2 publication Critical patent/EP0562289A2/fr
Publication of EP0562289A3 publication Critical patent/EP0562289A3/xx
Application granted granted Critical
Publication of EP0562289B1 publication Critical patent/EP0562289B1/fr
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
    • B02C15/007—Mills with rollers pressed against a rotary horizontal disc

Definitions

  • the invention relates to a roller mill according to the preamble of claim 1.
  • Rolling mills in particular so-called spring roller mills, of the type required in the preamble of claim 1 are sufficiently known from practice. These roller mills are used for crushing different granular or lumpy goods, such as. B. cement materials, ores, coal or the like.
  • This roller mill is known for example from DE-B-12 50 724.
  • the two rollers of a pair of rollers are each freely rotatably supported on one side of a roller carrier, whereby they are mutually supported on a roller axis when they are mounted on the fly.
  • each roller carrier protrude outwards beyond the circumference of the grinding table and are guided vertically approximately at the level of the grinding roller axis via outer guide pins or bolts in housing guides, pivot points for the upper ends of the tie rods being formed via these guides.
  • the invention is therefore based on the object of improving a roller mill of the type required in the preamble of claim 1 in such a way that undesirable torques or tilting moments in the region of each grinding roller pair and each associated roller carrier can be reliably avoided with a relatively simple construction and a particularly quiet one Run of the roller mill is guaranteed.
  • At least the housing guides and the guide lugs guided therein lie at the ends of each roller carrier approximately at the height of the horizontal grinding track plane.
  • the articulation points of the upper tie rod ends on the outer roller carrier ends are also approximately at the height of the horizontal Grinding path level and next to the guide approaches or if these articulation points are sensibly below the horizontal grinding path level.
  • an indifferent equilibrium can be achieved on each roller carrier with an associated pair of grinding rollers by the above-mentioned laying of at least the above-mentioned guides for the roller carrier ends approximately at the level of the horizontal grinding path plane.
  • This indifferent equilibrium can be achieved according to the invention by arranging the guides mentioned, for example in the grinding path plane, and also by arranging the articulation points of the upper tie rod ends on the outer roller carrier ends in this grinding path plane.
  • each roller carrier is located approximately at the level of the grinding path level, while the articulation points of the upper tie rod ends on the outer roller carrier ends are provided below the horizontal grinding path level and below the corresponding guide extensions, then a stable balance is created for each roller carrier together with a pair of grinding rollers around its leadership approaches.
  • the grinding roller pairs can roll relatively quietly on the grinding track or the grinding material bed located thereon, any radial oscillating movements between grinding rollers and grinding material are reduced to a minimum, thereby stabilizing the grinding material build-up and thus increasing the effectiveness of the grinding work can.
  • This extremely favorable grinding work also leads - as tests have confirmed - to energy savings for the operation of this roller mill according to the invention.
  • FIGS. 1 and 2 A first exemplary embodiment of this roller mill according to the invention will first be described with reference to FIGS. 1 and 2. Before going into more detail on the individual parts of this roller mill, it should be emphasized that only the parts required to explain the essential features of the invention are illustrated in FIGS. 1 and 2, i. H. In FIG. 1, only a rough - the left - half is illustrated in a highly simplified, schematic vertical section, while only about a quarter is shown in the horizontal sectional view of FIG. 2, since the other halves or quarters are approximately mirror images of those illustrated Partial cuts can be made.
  • each articulation point between an upper tie rod end 11b and an outer roller support end 7a can be formed on the one hand by an articulated hook 13 attached to the roller support end 7a and on the other hand by a shackle 14 articulated on the upper tie rod end 11b, this shackle 14 is suspended from the outside and above in the associated link hook 13.
  • each housing guide 9 has - as can best be seen from FIG. 2 - three approximately perpendicular, vertically aligned guide surfaces 9a, 9b and 9c such that in the horizontal section the shape of a U open towards the grinding table 4 is formed is. This results in a reliable vertical and radial or axial guidance for the roller carriers 7 or the grinding roller pairs 6 carried by them with respect to the grinding track 5.
  • At least the housing guides 9 and the guide projections (13a, 7a ', 7a' ') on the outer roller carrier ends 7a are approximately at the level of the horizontal grinding track level 15 (this horizontal grinding track level 15 being included) perfectly flat grinding tracks 5 by their top or in the case of annular trough-shaped grinding tracks 5 - as illustrated - by an averaged horizontal plane). It should of course be taken into account that during grinding or comminution work, i.e. H.
  • the articulation points which result from the interaction of the articulation hooks 13 and the shackles 14, also approximately at the height of the horizontal Grinding track level 15 and, in addition to the guide lugs mentioned, lie on the outer roller carrier ends 7a.
  • the guidance of the outer tie rod ends 7a and the articulation points of the upper tie rod ends 11b on the outer roller carrier ends 7a are placed approximately in the horizontal grinding path plane 15, which creates an indifferent balance for roller carriers 7 and pairs of grinding rollers 6.
  • the two grinding rollers 6 of a pair of grinding rollers are arranged symmetrically on both longitudinal sides of the associated roller carrier 7 or on both sides of its horizontal longitudinal central axis 7b.
  • each pair of grinding rollers 6 can also be displaced on the plate carrying the articulation hooks 13 on the end face 7d transversely to the roller carrier axis 7b (see FIG. 2) (for example by means of a corresponding screw connection).
  • the second exemplary embodiment of the roller mill illustrated in FIGS. 3 and 4 differs from the example described first (FIGS. 1 and 2) only with regard to the vertical guidance and the arrangement of the articulation points on the roller carrier ends. Since all other parts of the mill can be designed in the same way as in the first embodiment, the same reference numerals are used for these similar parts as in the first example, so that their detailed description can be omitted substantially and only some main parts are provided with the corresponding reference numerals.
  • the guide lugs on the outer roller carrier ends 7a - in relation to the roller carrier 7 or its horizontal longitudinal central axis 7b - can be formed by cylindrical guide pins 20 projecting axially outwards from the roller carrier 7 be adapted, in turn, housing guides 9 are provided, each of which has three approximately perpendicular, vertically aligned guide surfaces 9a, 9b and 9c, which are arranged in horizontal section (FIG. 4) in the form of a U open towards the grinding table 4.
  • the clear distance between the two opposite guide surfaces 9a and 9c (leg surfaces of the U) is the diameter of the associated one Guide pin 20 turned off, so that there is a reliable lateral, horizontal and radial or axial guidance for each roller carrier end 7a, the guide pin 20 on both roller carrier ends 7a of a roller carrier 7 expediently coaxially on the longitudinal central axis 7b of the roller carrier 7, so that thereby a certain pivoting mobility of the roller carrier 7 around its longitudinal central axis 7b is made possible, which is advantageous for the alignment of the grinding rollers 6 in the grinding path 5 (in adaptation to the respective material bed).
  • the articulation points of the upper tie rod ends 11b are provided on the outer roller carrier ends 7a below the horizontal grinding track plane 15 and with a real short, practical distance below the corresponding guide pins 20.
  • these articulation points can again be formed by shackles 14 articulated on the upper tie rod ends 11b and articulation hooks 13 projecting outward from the roller carrier ends 7a.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Adjustment And Processing Of Grains (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
  • Massaging Devices (AREA)
  • Milling Processes (AREA)
EP93102731A 1992-03-24 1993-02-21 Broyeur à rouleaux Expired - Lifetime EP0562289B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4209459 1992-03-24
DE4209459A DE4209459A1 (de) 1992-03-24 1992-03-24 Wälzmühle

Publications (3)

Publication Number Publication Date
EP0562289A2 true EP0562289A2 (fr) 1993-09-29
EP0562289A3 EP0562289A3 (fr) 1994-03-02
EP0562289B1 EP0562289B1 (fr) 1996-01-17

Family

ID=6454834

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93102731A Expired - Lifetime EP0562289B1 (fr) 1992-03-24 1993-02-21 Broyeur à rouleaux

Country Status (7)

Country Link
US (1) US5350124A (fr)
EP (1) EP0562289B1 (fr)
AT (1) ATE133090T1 (fr)
BR (1) BR9301242A (fr)
DE (2) DE4209459A1 (fr)
MX (1) MX9301657A (fr)
ZA (1) ZA931277B (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE387033C (de) * 1922-08-19 1923-12-27 Albert Fruehauf Ringmuehle
DE1250724B (fr) * 1964-01-16 1967-09-21

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3100341A1 (de) * 1981-01-08 1982-07-22 Loesche GmbH, 4000 Düsseldorf Walzenmuehle, insbesondere fuer die kohlenvermahlung
SU1613161A1 (ru) * 1987-04-24 1990-12-15 Всесоюзный Научно-Исследовательский Институт Цементного Машиностроения Мельница
FR2615409B1 (fr) * 1987-05-22 1991-11-08 Magotteaux Sa Piece d'usure composite pour broyeurs verticaux
DE3718781A1 (de) * 1987-06-04 1988-12-15 Krupp Polysius Ag Rollenmuehle
US4828189A (en) * 1988-07-07 1989-05-09 Fuller Company Roller mill for comminuting solid materials

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE387033C (de) * 1922-08-19 1923-12-27 Albert Fruehauf Ringmuehle
DE1250724B (fr) * 1964-01-16 1967-09-21

Also Published As

Publication number Publication date
ZA931277B (en) 1993-09-17
EP0562289A3 (fr) 1994-03-02
MX9301657A (es) 1994-02-28
EP0562289B1 (fr) 1996-01-17
DE59301429D1 (de) 1996-02-29
US5350124A (en) 1994-09-27
DE4209459A1 (de) 1993-09-30
ATE133090T1 (de) 1996-02-15
BR9301242A (pt) 1993-09-28

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