EP3313576A1 - Broyeur à rouleaux à lit de matériau - Google Patents

Broyeur à rouleaux à lit de matériau

Info

Publication number
EP3313576A1
EP3313576A1 EP16736390.2A EP16736390A EP3313576A1 EP 3313576 A1 EP3313576 A1 EP 3313576A1 EP 16736390 A EP16736390 A EP 16736390A EP 3313576 A1 EP3313576 A1 EP 3313576A1
Authority
EP
European Patent Office
Prior art keywords
rocker
roller
good
roller mill
bed
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
EP16736390.2A
Other languages
German (de)
English (en)
Other versions
EP3313576B1 (fr
Inventor
Dirk Hoffmann
Ralf Frankenberger
Hardy Lessmeister
Lukas SCHMITT
Karl-Heinz Schütte
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.)
Gebr Pfeiffer Se
Original Assignee
Gebr Pfeiffer Se
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 Gebr Pfeiffer Se filed Critical Gebr Pfeiffer Se
Publication of EP3313576A1 publication Critical patent/EP3313576A1/fr
Application granted granted Critical
Publication of EP3313576B1 publication Critical patent/EP3313576B1/fr
Active 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
    • 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
    • B02C4/32—Adjusting, applying pressure to, or controlling the distance between, milling members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B3/00—Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs
    • B30B3/04—Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs co-operating with one another, e.g. with co-operating cones
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C2201/00—Codes relating to disintegrating devices adapted for specific materials
    • B02C2201/02—Codes relating to disintegrating devices adapted for specific materials for reinforced concrete

Definitions

  • the present invention relates to a high-bed roll mill comprising two
  • Such high-bed roll mills also called roll presses, are used for example in the cement industry to grind cement raw material, cement clinker and granulated blastfurnace slag.
  • Mahlspalt provided.
  • the material to be shredded is located above the nip.
  • the two rollers driven in opposite directions cause the material to be shredded pulled through the nip, it is pressure-loaded and thus crushed.
  • the two grinding rollers must with very high forces radially in the direction of
  • one roller is designed as a hard roller and the other as a loose roller.
  • the pressure necessary for crushing the material to be ground is applied to the idler roll by way of articulated hydraulic cylinders
  • Circular sheet guide as known from the documents DE 1 927 164 A1 and US 4154408 A, although has a comparatively simple frame construction, but the grinding gap opens in parallel, regardless of where the oversize or hard grinding material passes through the gap. A worse grinding result is the result.
  • Construction in particular has a simple frame construction.
  • a good-bed roller mill comprising two juxtaposed, axially parallel aligned in a ground state and counter-rotating rollers forming a nip between them, a
  • each roller holder in each of which a roller is rotatably mounted, each roller holder is pivotally attached to the foundation, and a nip acting on the tensioning device, which is arranged outside the nip and connects both roll holders together, each roll holder two Swing, which are formed as separate components, each disposed at one end of a roller and are deflected independently, at least one rocker is able to perform at least two of the following movements: pivotal movement about an axis parallel to the roll axis, rotational movement about the longitudinal axis the rocker, rotational movement about an axis parallel to the longitudinal axis of the rocker, rotational movement about an axis perpendicular to the longitudinal axis of the rocker.
  • the ground state of the good bed roller mill is to be understood as meaning the state of the good bed roller mill, in which no ground material is located in the good bed roller mill.
  • the good-bed roller mill according to the invention has a comparatively simple and inexpensive construction, since the force-absorbing frame construction known Gutbett roller mills is replaced by a roller guide, which is essentially composed of two swing mounts and two roller mounts.
  • the good-bed roller mill according to the invention is also comparatively compact, so that the good-bed roller mill according to the invention has a comparatively small size
  • the compact design also reduces the weight and handling of the individual components.
  • the smooth running of the machine during operation is also increased by the comparatively low inertial mass of the components.
  • the requirements of the good-bed roller mill according to the invention to the set-up tolerance compared to known low-bed roller mills are lower.
  • the formation of the wings as separate components has the advantage that the rollers, for example, for maintenance work on the surface of the roller, are easily accessible from the side facing away from the refining gap. A time-consuming and costly removal of the rollers is not mandatory.
  • the separation of the roll holder in two wings means a decoupling of the movement of the individual wings, so that the expansion of the nip can be reduced in the passage of an oversized or too hard ground material on a part of the roll width. As a result, the milling quality across the nip width is improved and the energy consumption per milled ton is reduced.
  • At least one rocker of a roll support is capable of rotational movement about an axis perpendicular to the longitudinal axis of the rocker and perpendicular to the longitudinal axis of the roll. In this movement possibility, a comparatively high proportion of the forces occurring during the milling process due to skewing of bending rolls can be prevented.
  • At least one rocker is mounted spherically.
  • the clamping device comprises two clamping units and each clamping unit is connected to two opposite wings. In this way, a regulation of the nip across the width and thus a further improvement of the grinding quality can be achieved.
  • the clamping device comprises a clamping cylinder and the connection points of the clamping cylinder are rotatably mounted on the rockers. This allows the clamping cylinder even without complex joints in
  • the clamping device comprises a clamping cylinder and at least one end of each clamping cylinder is detachably connected to a rocker. This allows access to the rollers or nip for maintenance and malfunction.
  • each rocker is pivotable relative to the foundation from an operating position to a maintenance position.
  • each rocker by at least 15 °, preferably up to 90 ° relative to the foundation hinged in the sense of hinged in order to obtain a free access to a roller and to optionally replace the roller can.
  • a surface or device is provided, on which the rocker can be stored when unfolding.
  • Attachments such as gearbox, can during Ausklappvorgang in the
  • the cylinders of the clamping device can be used as auxiliary elements in the process of unfolding.
  • Cylindrical roller or sliding bearings are preferably used for the storage of the rollers, since they are relatively cheap and have a high load rating based on the volume of construction.
  • each roll holder has at least one receptacle for locking bolts, so that each roll can be used as a Loswalze and locking roller to obtain the most uniform wear of the rolls.
  • Fig. 1 is a good-bed roller mill in a perspective view according to a first
  • Fig. 7 is a good-bed roller mill in a perspective view according to a second
  • Embodiment, and Fig. 8 is a good bed roller mill in front view.
  • Fig. 1 shows a good bed roller mill 10 in a perspective view obliquely from above.
  • the good-bed roller mill 10 comprises two juxtaposed, axially parallel aligned rollers 12, 14 which are rotatably mounted.
  • the rollers 12, 14 are individually driven by means of drive units 16, 18 and rotate in a known manner in opposite directions.
  • a clamping device with clamping cylinders 20, 22, such as hydraulic cylinders is provided.
  • the tensioning device is arranged outside, in particular above the roller gap formed by the rollers 12, 14.
  • a foundation 1 1 comprises two parallel and spaced strip-shaped
  • Swing shots 24, 26, which are aligned substantially perpendicular to the axis of the rollers 12, 14.
  • On the foundation 1 1 two roller holders 28,30 are arranged, in each of which a roller 12, 14 is rotatably mounted.
  • Each roller holder 28, 30 has two formed as separate components rockers 32, 34 and 36, 38, which are each rotatably and pivotally attached to the rocker mounts 24, 26.
  • the rockers 32, 34 and 36, 38 are independently deflectable.
  • Each rocker 32, 34, 36, 38 comprises two substantially C-shaped
  • Plate elements 40, 42 which are arranged parallel and spaced from each other.
  • the upper and lower portions of the two C-shaped plate members 40, 42 are connected to each other by means of an upper swing axle 44 and a lower swing axle 46 (see FIG. 3).
  • Swing 32, 34, 36, 38 formed.
  • maintenance-free spherical plain bearings are provided.
  • Each clamping cylinder 20, 22 has at its two end portions a bore through which passes through the upper rocker axis 44. This creates a joint connection between a rocker 32, 34, 36, 38 and an end portion of the clamping cylinder 20, 22. Although not shown, so hinge bearings are provided to achieve a low-friction pivotal movement between clamping cylinder 20, 22 and rockers 32, 34, 36, 38.
  • the two clamping cylinders 20, 22 are detachably connected to the wings 32, 34, 36, 38.
  • the rollers 12, 14 each have a roller body 50 and a shaft 52 (see Fig. 3).
  • the rockers 32, 34, 36, 38 are arranged at both rollers 12, 14 respectively on both sides of the roller body 50 on the shaft 52, wherein the rollers 12, 14 are each rotatably mounted in the concave portion of each rocker 32, 34, 36, 38.
  • the bearings of the rollers 12, 14 by means of suitable bearings, such as roller bearings and / or plain bearings.
  • multi-row cylindrical roller bearings multi-row tapered roller bearings or radial plain bearings are suitable.
  • Fig. 4 shows the good bed roller mill 10 in a maintenance position.
  • the good bed roller mill 10 in a maintenance position.
  • the rockers 32, 34, 36, 38 are pivoted outwardly or folded outwards, so that the rollers 12, 14 are freely accessible to perform maintenance on the rollers or to replace them.
  • the clamping cylinders 20, 22 can be decoupled on one side.
  • the rockers 32, 34, 36, 38 by a large angle, in particular by an angle> 15 °, preferably up to an angle of 90 °, relative to the rocker seat 24, 26 are pivoted.
  • Fig. 5 shows the high-bed roll mill 10 in a ground state.
  • the two rollers 12, 14 have a uniform nip 54 across the width of the roller 12, 14.
  • the two clamping cylinders 20, 22 are in their normal position.
  • the material to be ground is placed above the nip 54 on the two rollers 12, 14. Due to the friction on the roll surface, the material to be ground is pulled into the nip 54 and comminuted in the nip 54.
  • the wings 32, 36 and 34, 38, the clamping cylinders 20, 22 and the rocker seats 24, 26 absorb the force exerted by the ground material in the nip 54 on the rollers 12, 14, and ensure that the nip 54 does not change significantly during the grinding process.
  • FIG. 6 shows an operating state in which the grinding stock passes into the nip 54, which is larger than the nip and intended to be comminuted. If a largest grain or foreign matter is very hard and can not be crushed by the rollers 12, 14, the distance between the rollers 12, 14 must be increased, for example, to avoid damage to the rollers 12, 14.
  • the clamping cylinder 20, 22 are deflected, ie extended to let the material too large or too hard to pass.
  • the wings 32, 36 and 34, 38 are deflected in this case.
  • Each of the rockers 32, 34 and 36, 38 is capable of pivotal movement about an axis parallel to the roll axis.
  • the pivotal movement about the axis parallel to the roll axis ensures that the distance between the rolls 12, 14 can be increased or decreased.
  • the clamping cylinders 20, 22 provide a counter-directed force, so that the distance between the rollers 12, 14 remains almost the same.
  • each rocker 32, 34 and 36, 38 is able to rotate about its longitudinal axis or an axis parallel to its longitudinal axis.
  • the entire rocker 32, 34 and 36, 38 rotate as a rigid body about a rotation axis.
  • the wings 32, 34 and 36, 38 laterally elastically dodge or pivot about an axis perpendicular to the roll axis and its longitudinal axis.
  • pan and rotation movements can occur here superimposed.
  • the rockers 32, 34 and 36, 38 are not rigid, but by means of a hinge connection with the foundation, in particular the swing seats 24, 26 are connected and beyond rotatable, optionally in itself rotatable, the wings 32, 34 and 36 respectively , 38 at least partially follow the bending of the roll axis due to a largest grain or foreign body and thus a portion of the forces in the
  • FIG. 7 shows a second embodiment of a high-bed roll mill 110 in a perspective view obliquely from above.
  • the embodiment of a high-bed roller mill 1 10 shown in FIG. 7 differs from the embodiments of a high-bed roller mill 10 illustrated in FIGS. 1 to 6 in that the rockers and the foundation are designed differently.
  • the two substantially C-shaped plate members 140, 142 are at least partially connected to each other at its rear side.
  • an upper swing arm 148 is provided, on which the respective clamping cylinders 120, 122 are arranged articulated.
  • the rocker receptacles 124, 126 each include a bottom plate 160 and two perpendicular to the bottom plate 160 spaced side walls 162, between which two opposite rockers 132, 136 and 134, 138 in the
  • Swing mount 124, 126 are rotatably mounted about a lower rocker axis 146.
  • rockers 132 and 134 and in the rocker seats 124 and 126 each have a bore 164 is provided through which a locking bolt 166 is feasible, so that in the embodiment shown in Fig. 7, the left roller 1 14 as
  • Hard roller and the right roller 1 12 is designed as a Loswalze.
  • Wheel surfaces of idler rollers wear faster than those of the fixed rollers.
  • FIG. 8 shows a third embodiment of a good-bed roller mill 210, which differs from the previously described good-bed roller mills in that both rollers 212, 214 can be used either as Loswalze or as a fixed roller.
  • both rollers 212, 214 can be used either as Loswalze or as a fixed roller.
  • a further bore 268 for receiving a locking pin in the rocker seat 226 and in the rocker 238 is provided.
  • the two counter-rotating rollers are operated in a deep-rolling / idler-roller pairing.
  • the good bed roller mill can be operated with the help of additional elements with two Loswalzen. All embodiments have in common that due to the present leverage ratios of the illustrated good-bed roller mills 10; 1 10, 210 the strength of the clamping cylinder is increased over a ratio of 2: 1.

Landscapes

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

Abstract

L'invention concerne un broyeur à rouleau à lit de matériau, comprenant deux rouleaux contrarotatifs (12, 14 ; 112, 114 ; 212 ; 214) qui sont disposés l'un à côté de l'autre et orientés parallèlement à l'axe dans un état de base et entre lesquels est ménagée une emprise (54), un socle (11), deux supports de rouleau (28, 30) dans chacun desquels un rouleau (12, 14, 12, 114, 212, 214) est monté à rotation, chaque support de rouleau (28, 30) étant fixé de façon pivotante au socle (11), et un dispositif de serrage qui agit sur l'emprise (54), qui est disposé à l'extérieur de l'emprise (54) et relie les deux supports de rouleau entre eux. Chaque support de rouleau (28, 30) comporte deux balanciers (32, 34, 36, 38 ; 132, 134, 136, 138, 234, 238) qui sont conçus sous la forme de composants séparés, qui sont disposés chacun à une extrémité d'un rouleau (12, 14, 112, 114, 212, 214) et qui peuvent être déviés indépendamment l'un de l'autre.
EP16736390.2A 2015-06-23 2016-06-15 Broyeur à rouleaux à lit de matériau Active EP3313576B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015110033.9A DE102015110033A1 (de) 2015-06-23 2015-06-23 Gutbett-Walzenmühle
PCT/EP2016/063684 WO2016207039A1 (fr) 2015-06-23 2016-06-15 Broyeur à rouleaux à lit de matériau

Publications (2)

Publication Number Publication Date
EP3313576A1 true EP3313576A1 (fr) 2018-05-02
EP3313576B1 EP3313576B1 (fr) 2019-03-27

Family

ID=56372876

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16736390.2A Active EP3313576B1 (fr) 2015-06-23 2016-06-15 Broyeur à rouleaux à lit de matériau

Country Status (9)

Country Link
US (1) US11007533B2 (fr)
EP (1) EP3313576B1 (fr)
JP (1) JP6749350B2 (fr)
CN (1) CN107820448B (fr)
BR (1) BR112017023727B1 (fr)
DE (1) DE102015110033A1 (fr)
DK (1) DK3313576T3 (fr)
TR (1) TR201906052T4 (fr)
WO (1) WO2016207039A1 (fr)

Families Citing this family (11)

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Publication number Priority date Publication date Assignee Title
WO2019093956A1 (fr) * 2017-11-10 2019-05-16 Metso Sweden Ab Kit de remontage de distributeur de déviation pour un broyeur à rouleaux, broyeur à rouleaux et procédé de montage d'un tel kit
SE541957C2 (en) 2017-11-10 2020-01-14 Metso Sweden Ab A deflection distributor refitting kit, a method for mounting and a roller crusher comprising such kit
WO2019093958A1 (fr) * 2017-11-10 2019-05-16 Metso Sweden Ab Kit de remontage de distributeur de déviation pour un broyeur à rouleaux, broyeur à rouleaux et procédé de montage d'un tel kit
CN109046556B (zh) * 2018-07-30 2024-02-02 北京科技大学 一种锥形辊式破碎机
US11077446B2 (en) * 2018-10-01 2021-08-03 Metso Outotec USA Inc. Startup sequence for roller crusher
BR112021021956A2 (pt) * 2019-05-09 2021-12-21 Metso Outotec Usa Inc Kit de recondicionamento de distribuidor de deflexão, método para montar um kit de recondicionamento de distribuidor de deflexão e britador de rolos
PE20220442A1 (es) * 2019-05-09 2022-03-30 Metso Outotec Usa Inc Chancador de rodillos
AU2019444430A1 (en) * 2019-05-09 2021-12-09 Metso Outotec USA Inc. Crushing device
EP3736045A1 (fr) * 2019-05-10 2020-11-11 Flender GmbH Dispositif de support pour deux transmissions ainsi que dispositif doté d'un tel dispositif de support
BE1027987B1 (de) * 2020-01-14 2021-08-16 Thyssenkrupp Ag Vorrichtung und Verfahren zum Mahlen von Einsatzmaterial sowie Steuerungs-/Regelungseinrichtung und Verwendung
WO2021144191A1 (fr) 2020-01-14 2021-07-22 Thyssenkrupp Industrial Solutions Ag Dispositif et procédé de broyage de matériau d'entrée

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Also Published As

Publication number Publication date
CN107820448A (zh) 2018-03-20
US20180272355A1 (en) 2018-09-27
DE102015110033A1 (de) 2016-12-29
WO2016207039A1 (fr) 2016-12-29
BR112017023727B1 (pt) 2021-06-29
JP2018518364A (ja) 2018-07-12
US11007533B2 (en) 2021-05-18
DK3313576T3 (da) 2019-06-17
JP6749350B2 (ja) 2020-09-02
EP3313576B1 (fr) 2019-03-27
TR201906052T4 (tr) 2019-05-21
CN107820448B (zh) 2019-12-17
BR112017023727A2 (pt) 2018-07-31

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