EP0447774A1 - Dispositif pour fixer des barres de percussion dans des évidements périphériques de rotors de broyeurs à impact - Google Patents

Dispositif pour fixer des barres de percussion dans des évidements périphériques de rotors de broyeurs à impact Download PDF

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Publication number
EP0447774A1
EP0447774A1 EP91101426A EP91101426A EP0447774A1 EP 0447774 A1 EP0447774 A1 EP 0447774A1 EP 91101426 A EP91101426 A EP 91101426A EP 91101426 A EP91101426 A EP 91101426A EP 0447774 A1 EP0447774 A1 EP 0447774A1
Authority
EP
European Patent Office
Prior art keywords
rotor
pressure
pressure line
discs
elements
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
EP91101426A
Other languages
German (de)
English (en)
Other versions
EP0447774B1 (fr
Inventor
Werner Bergmann
Volker Heukamp
Gerhard Hemesath
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.)
MSG MASCHINEN-SERVICE GMBH
Original Assignee
Salzgitter Maschinenbau GmbH
Noell Service und Maschinentechnik 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 Salzgitter Maschinenbau GmbH, Noell Service und Maschinentechnik GmbH filed Critical Salzgitter Maschinenbau GmbH
Priority to AT91101426T priority Critical patent/ATE93166T1/de
Publication of EP0447774A1 publication Critical patent/EP0447774A1/fr
Application granted granted Critical
Publication of EP0447774B1 publication Critical patent/EP0447774B1/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
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26—Details
    • B02C13/30—Driving mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26—Details
    • B02C13/28—Shape or construction of beater elements
    • B02C13/2804—Shape or construction of beater elements the beater elements being rigidly connected to the rotor

Definitions

  • the invention relates to a device for fixing blow bars in edge cutouts of impact mill rotors, in particular rotors, in which the edge cutouts are provided in rotor disks arranged at a distance from one another, with holding parts provided on the one side of the edge cutouts being arranged on the rotor and having corresponding parts the blow bars used engage and thereby fix them against a movement radially outwards, and on the other side of the edge cutouts between the side wall of each cutout and the blow bar there are wedges which hold the blow bar in engagement with the holding parts and by themselves pressure elements supporting the rotor are held in their clamping position, the pressure elements assigned to a blow bar being connected to a common, axially parallel pressure line which is provided with a connecting piece with a valve.
  • the wedges must extend at least half or over the entire length of the rotor, because such a design only makes sense if several pressure elements are connected to a pressure line.
  • this results in considerable disadvantages since the elongated wedges cannot have an individually adapted system against the blow bars at the points where they are supported against the rotor disks in view of casting inaccuracies of the blow bars.
  • the object of the invention is to avoid the disadvantages of the two known types and nevertheless to obtain a pressure line system which is independent of the rotor and which is cheaper to manufacture and whose arrangement features keep inevitable damage caused by wear and tear low.
  • the component containing the pressure line is designed as a pressure line rail, which is arranged essentially at the edge cutouts of the rotor, and in that the pressure elements are arranged on the side of the pressure line rail facing the wedges, so that they extend over the Support the pressure line rail against the rotor.
  • This pressure line rail can be made very smooth over its entire length, so that it can be made from commercially available semi-finished products and can be easily removed and replaced if damaged.
  • the wedges as is usual, can only be as long in the axial direction as the rotor disks are wide, so that they are completely in the wear shadow of the rotor disks and are therefore protected against wear. The individual placement of the wedges against the blow bars is guaranteed. After all, those are between the rotor disks lying parts of the pressure line rail are therefore exposed to little wear and tear because they are arranged further inside the rotor, where regrind parts hardly ever get.
  • the pressure line rail Due to the back pressure acting on the pressure line rail, the pressure line rail is held in its position, so that no fastening is required except for securing in an axis-parallel direction.
  • the pressure elements are connected to the pressure line via check valves.
  • the connectors for the pressure lines can be provided in a known manner at one end of each pressure line rail and thereby in the region of an end face of the rotor. They can then be reached through an appropriately arranged closable opening in the housing side wall for the purpose of connecting a pressure pump or the like.
  • the connectors can also be arranged outside the housing.
  • bores in the rotor shaft do not have to be provided for this, as is known the connection between the pressure lines provided in the pressure line rails and the connecting pieces via bores which are provided in a bushing which rotates with the rotor shaft and which surrounds the rotor shaft in the region of the housing wall.
  • a bore is provided in the bushing for each pressure line rail, each of which has a connecting piece inside and outside the housing.
  • a connecting line leading to the corresponding pressure line is connected to the inner connecting piece, for example a protected hose or an equally laid pipe, while the connecting piece provided with a valve is screwed into the outer connecting piece.
  • a spring-loaded pressure indicator can also be provided, which works, for example, with a sensor that gives a signal when the pressure in one of the pressure lines drops.
  • the impact mill is provided within its housing, of which only one side wall 1 is shown, with a rotor 2 which is arranged on a shaft 3 mounted outside the housing. It consists of several rotor disks 4 made of cast steel, which abut one another with their widened hubs 5, by means of dowel pins 6 centered and connected to each other by a ring weld 7 form a rigid drum which is connected to the shaft 3 only at its two ends.
  • Each rotor disk 4 has six edge cutouts 8 distributed over the circumference, into which blow bars 9 can be inserted.
  • the rotor disks in the axial direction have wider jaws 10 which are provided with ribs 11 which engage in corresponding grooves in the blow bars 9.
  • the front side of the edge cut-outs in the circumferential direction has a surface 12 which deviates somewhat from the radial to the rear and which is provided with a guide groove 13, while in the base surface 14 of each edge cut-out there is an axially parallel groove 15.
  • a wedge 16 is arranged in each edge cutout, which holds the blow bar with the ribs 11 of the jaws 10 in engagement.
  • a hydraulic pressure element 17 is arranged in each edge cutout 8, the plunger 18 of which rests against the wedge 16 from the inside.
  • the pressure elements 17 assigned to a blow bar are fastened on a pressure line rail 19 which is guided in the grooves 15 and in which a longitudinal bore 20 and transverse bores 21 leading from this and leading to the pressure elements 17 are provided.
  • This arrangement supports the pressure elements 17 when they exert pressure against the wedges 16 via the pressure line rail 19 inwards against the rotor disks 4.
  • a connector provided with a coupling valve can be provided, which is accessible through a closable opening provided in the housing wall 1.
  • the longitudinal bores 20 provided in the pressure line rails 19 are connected by tubes 22 to bores 23 which are provided in a bushing 24 which surrounds the rotor shaft 3 at the point where it projects outward through the housing wall 1.
  • a coupling valve connecting pieces 25 are provided, via which the pressure lines 23, 22, 20, 21 and thus the pressure elements 17, e.g. can be pressurized using a hand pump.
  • measuring devices 26 for the pressures prevailing in the individual pressure line systems can be provided at a second outer outlet, to which a sensor 27 is assigned which gives a signal when the pressure in one of the systems should drop inadmissibly.
  • webs 28 are provided, which are arranged in front of the tubes in the direction of rotation of the rotor.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Harvester Elements (AREA)
  • Rotary Pumps (AREA)
EP91101426A 1990-03-01 1991-02-04 Dispositif pour fixer des barres de percussion dans des évidements périphériques de rotors de broyeurs à impact Expired - Lifetime EP0447774B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT91101426T ATE93166T1 (de) 1990-03-01 1991-02-04 Einrichtung zum festlegen von schlagleisten in randausschnitten von prallmuehlenrotoren.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4006329 1990-03-01
DE4006329 1990-03-01

Publications (2)

Publication Number Publication Date
EP0447774A1 true EP0447774A1 (fr) 1991-09-25
EP0447774B1 EP0447774B1 (fr) 1993-08-18

Family

ID=6401142

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91101426A Expired - Lifetime EP0447774B1 (fr) 1990-03-01 1991-02-04 Dispositif pour fixer des barres de percussion dans des évidements périphériques de rotors de broyeurs à impact

Country Status (9)

Country Link
US (1) US5221054A (fr)
EP (1) EP0447774B1 (fr)
JP (1) JP2960786B2 (fr)
KR (1) KR0166974B1 (fr)
AT (1) ATE93166T1 (fr)
BR (1) BR9100837A (fr)
CA (1) CA2037309C (fr)
DE (1) DE59100297D1 (fr)
ES (1) ES2045962T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0581758A1 (fr) * 1992-07-28 1994-02-02 Hermann Schrödl Barre de percussion de rotors de broyeurs à impact
FR2998490A1 (fr) * 2012-11-26 2014-05-30 Jean-Paul Jusseau Marteau pour l'equipement des rotors de machines de broyage de pierres, procede de fabrication de ce marteau et dispositif de montage de tels marteaux sur lesdits rotors.

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19813310C1 (de) * 1998-03-26 1999-10-28 Noell Serv & Maschtechn Gmbh Rotor für Prallmühlen
US9387640B1 (en) 2011-08-01 2016-07-12 David D. B. Rice Recycling systems and methods for plastic waste
US9022306B2 (en) * 2013-03-09 2015-05-05 David D. B. Rice Recycling systems and methods for plastic waste
DE102015213963A1 (de) * 2015-07-23 2017-01-26 Thyssenkrupp Ag Rotor für einen Prallbrecher
CN110292973A (zh) * 2019-07-26 2019-10-01 枣庄鑫金山智能机械股份有限公司 一种制砂机定位机构下固定板
CN114589192B (zh) * 2022-02-21 2023-03-24 许昌学院 一种建筑垃圾资源化粉碎再利用装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2148752A1 (de) * 1971-09-30 1973-04-05 Hazemag Hartzerkleinerung Einrichtung zum festlegen von schlagleisten in prallmuehlenrotoren
FR2279468A1 (fr) * 1974-07-27 1976-02-20 Hazemag Andreas Kg Rotor pour broyeur a marteaux
DE2850299A1 (de) * 1978-11-20 1980-05-22 Hazemag Andreas Kg Einrichtung zum festlegen von schlagleisten in umfangslaengsschlitzen von prallmuehlenrotoren
FR2472416A2 (fr) * 1979-12-27 1981-07-03 Fives Cail Babcock Concasseur a percussion
DE3521588A1 (de) * 1985-06-15 1986-12-18 O & K Orenstein & Koppel Ag, 1000 Berlin Vorrichtung zum festlegen von schlagleisten in prallmuehlenrotoren

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4275852A (en) * 1979-08-20 1981-06-30 Asplund Arne J A Apparatus for controlling the refining of fibrous pulp grist in a drum refiner
DE3303628A1 (de) * 1983-02-03 1984-08-09 Maschinenfabrik Goebel Gmbh, 6100 Darmstadt Messerzylinder zum bearbeiten von bahnfoermigem gut
JPH0780162B2 (ja) * 1986-10-06 1995-08-30 ワドキン ピーエルシー 回転式カッタヘッド
US5004169A (en) * 1989-11-22 1991-04-02 Cedarapids, Inc. Impeller bar assembly with adjustable locking mechanism

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2148752A1 (de) * 1971-09-30 1973-04-05 Hazemag Hartzerkleinerung Einrichtung zum festlegen von schlagleisten in prallmuehlenrotoren
FR2279468A1 (fr) * 1974-07-27 1976-02-20 Hazemag Andreas Kg Rotor pour broyeur a marteaux
DE2850299A1 (de) * 1978-11-20 1980-05-22 Hazemag Andreas Kg Einrichtung zum festlegen von schlagleisten in umfangslaengsschlitzen von prallmuehlenrotoren
FR2472416A2 (fr) * 1979-12-27 1981-07-03 Fives Cail Babcock Concasseur a percussion
DE3521588A1 (de) * 1985-06-15 1986-12-18 O & K Orenstein & Koppel Ag, 1000 Berlin Vorrichtung zum festlegen von schlagleisten in prallmuehlenrotoren

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0581758A1 (fr) * 1992-07-28 1994-02-02 Hermann Schrödl Barre de percussion de rotors de broyeurs à impact
FR2998490A1 (fr) * 2012-11-26 2014-05-30 Jean-Paul Jusseau Marteau pour l'equipement des rotors de machines de broyage de pierres, procede de fabrication de ce marteau et dispositif de montage de tels marteaux sur lesdits rotors.

Also Published As

Publication number Publication date
ES2045962T3 (es) 1994-01-16
KR910016383A (ko) 1991-11-05
KR0166974B1 (ko) 1999-01-15
US5221054A (en) 1993-06-22
CA2037309C (fr) 2001-05-15
CA2037309A1 (fr) 1991-09-02
ATE93166T1 (de) 1993-09-15
JP2960786B2 (ja) 1999-10-12
JPH04219153A (ja) 1992-08-10
EP0447774B1 (fr) 1993-08-18
BR9100837A (pt) 1991-11-05
DE59100297D1 (de) 1993-09-23

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