EP0513479B1 - Concasseur à percussion et procédé de réglage de son interstice de travail - Google Patents

Concasseur à percussion et procédé de réglage de son interstice de travail Download PDF

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Publication number
EP0513479B1
EP0513479B1 EP92102489A EP92102489A EP0513479B1 EP 0513479 B1 EP0513479 B1 EP 0513479B1 EP 92102489 A EP92102489 A EP 92102489A EP 92102489 A EP92102489 A EP 92102489A EP 0513479 B1 EP0513479 B1 EP 0513479B1
Authority
EP
European Patent Office
Prior art keywords
impact
impact mechanism
rotor
gap
housing
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
EP92102489A
Other languages
German (de)
English (en)
Other versions
EP0513479A1 (fr
Inventor
Günter Alt
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 Foerdertechnik GmbH
Original Assignee
Krupp Foerdertechnik 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 Krupp Foerdertechnik GmbH filed Critical Krupp Foerdertechnik GmbH
Publication of EP0513479A1 publication Critical patent/EP0513479A1/fr
Application granted granted Critical
Publication of EP0513479B1 publication Critical patent/EP0513479B1/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
    • B02C13/02—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft
    • B02C13/06—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft with beaters rigidly connected to the rotor
    • B02C13/09—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft with beaters rigidly connected to the rotor and throwing the material against an anvil or impact plate
    • B02C13/095—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft with beaters rigidly connected to the rotor and throwing the material against an anvil or impact plate with an adjustable anvil or impact plate

Definitions

  • the invention relates to an impact crusher with at least one rotor rotatably mounted in a housing, drivable and provided with blow bars, a feed mouth for the material to be broken, at least one impact mechanism mounted pivotably in the housing, including adjustment drive, devices for changing the width thereof being provided in the area of the feed mouth .
  • DE-A 39 11 086 discloses an impact crusher of the generic type.
  • a control device for controlling the first adjustment drive is provided.
  • a sorting device known per se is arranged, which separates the oversized grain fraction from the normal grain fraction, feeds a first weighing device for the normal grain fraction and a second weighing device for the oversize grain fraction, the output signals of which are fed into the control device and the control device via the first adjustment drive
  • the position of the monoblock in relation to the impact circle of the beater roller changes when the ratio of oversize to normal grain deviates from a predetermined value.
  • Upstream of the first monoblock is a pivotable plate which is pivotally mounted in the area of the mouth's entry opening.
  • the free end of the plate lies loosely on a stop of the first monoblock, the plate being biased downwards by means of a spring.
  • the object of the invention is the further development of the impact crusher described in the generic part of the first claim to the extent that blockages on the one hand in the inlet area or in the or the grinding rooms and on the other hand above the blow bars of the rotor can be fixed safely and with simple means, without external intervention being necessary.
  • the device or devices can also be actuated in succession or together.
  • the adjustment drive (s) in the lower area of the impact mechanism can also be used as an aid for adjusting the impact mechanism (s) (gap between monoblock and blow bar).
  • a method for adjusting the gap between the impactor (s) and the blow bars of the rotor and for actuating the devices is characterized in that a basic setting of the gap in relation to a predetermined end grain of a predetermined material is carried out in the factory and this basic setting is fed to a control, and that this basic setting can be changed or restored manually or automatically in the operating state, on the one hand, changes in the feed material or in the case of blockages in the feed mouth and, on the other hand, when wear occurs on the blow bars and the baffle plates of the impact units, by the control due to the changing Parameters actuated the necessary adjustment drives, in particular taking into account the measured values made available by the measuring probe.
  • the hydro-mechanical unlocking of the mechanical clamping device is also triggered by the control, the probe detecting the stepless change in the travel of the piston rod and feeding it to the control via the measuring device.
  • the clamping device is automatically locked again when the cylinder is at a standstill by returning the hydraulic pressure and automatically returning the mechanical clamping device to its starting position.
  • the control also includes manual setting means, such as potentiometers or the like, by means of which a stepless or predetermined intermediate setting of the devices can be brought about.
  • the fact that the adjustment drives are each equipped with a safety clamping device ensures that the cylinders cannot be adjusted in the rest position.
  • the measuring probe causes the or the adjustment drives and thus also the impact mechanism (s) can be moved continuously into any position.
  • the electronic measuring device can be operated manually or automatically; Among other things, it has a feedback which indicates the respective position of the adjustment drive or the corresponding impact mechanism.
  • the function of the impact crusher 1 is approximately as follows: Material to be broken is fed via the inlet chute 19 and falls onto the rotor 4 via the feed chute 20. Here, the material to be broken is gripped by the blow bars 5 and at least partially already crushed. Sufficiently shredded material passes through the gap a between the lower baffle plate edge 18 and the blow bar 5 into the area of the second baffle unit 7, where further comminution is brought about in an analogous manner. The material that has been sufficiently shredded here is discharged downwards through the gap b. Material that has not yet been sufficiently comminuted is thrown against the baffle plate 8 by the blow bars 5, where further comminution takes place. The material is moved in the first grinding chamber 21 until it reaches the second grinding chamber 22 through the gap a.
  • the feed material generally has a wide variety of grain sizes and is often stacked one above the other in blocks, it can happen that individual blocks 23, 24, 25 get stuck at different points in the first grinding chamber 21 and thus lead to blockages. If, for example, a block 23 is jammed between the chute 20 and the crossbeam 10, the parameters of the impact crusher change. Since there is no or only a small supply of material, the current consumption of the rotor drive changes (not shown). At the same time, changes occur in the screened Grain on because no or less material is penetrated. The location of the blockage can be localized and appropriate countermeasures taken based on individual or multiple external parameters.
  • the traverse 10 In the event of a blockage in the area of the traverse 10, it is pulled up by the hydraulic cylinder 14 by a predetermined amount (for example 200 mm) and the clamped block 23 can fall onto the rotor 4 via the chute 20 and be shredded there. Once the blockage has been removed, the traverse 10 is automatically moved back to its starting position. In the operating state, the lower edge 26 of the wear element 13 is approximately at the same level as the upper edge 27 of the baffle plate 8, so that a smooth transition of the material to be dispensed is ensured without larger chunks being able to get stuck in the gap between the wear element 13 and the baffle plate 8 .
  • a predetermined amount for example 200 mm
  • the hydraulic cylinder 16 is actuated due to the changing operating parameters and the impact mechanism 6 is pivoted about the pivot point 29 of the upper hydraulic cylinder 15. Once the blockage has been removed, the block 25 falls onto the rotor 4 and is crushed.
  • downstream monoblock 7 which can also be actuated via the hydraulic cylinder 17 in the event of blockages in the second grinding chamber 22, although blockages occur less frequently here.
  • the actuation of the hydraulic cylinders 14-17 can be carried out individually or together.
  • the setting of the gap a and / or b or its readjustment in the operating state also takes place on the basis of the changing external parameters.
  • the sieved end grain changes when the blow bars 5 or the baffle plates 8 or 9 wear, the gap a or b being automatically adjustable again by means of a control system on the basis of predetermined parameters.
  • the gap a or b can be changed either manually or automatically in order to do justice to the corresponding other material properties, the operating parameters already mentioned also being taken into account here.
  • manual adjustments of the gap a or b being able to be carried out, for example, by means of a potentiometer.
  • FIG. 2 shows a partial representation of the first impact mechanism 6 together with the impact plate 8 and adjustment drives 15, 16.
  • the adjustment drive 16 which is designed as a hydraulic cylinder, contains, as additional safety devices, an only indicated commercially available hydro-mechanical clamping device 30 and a measuring probe 31 in the form of an inductive displacement sensor.
  • the safety clamping device 30 ensures that the hydraulic cylinder 16 cannot be adjusted in the rest position. Should the hydraulic cylinder 16 move, i.e. retracted or extended, this clamping device 30 opens automatically by hydraulic action (not shown), so that the piston rod 32 can be moved in a corresponding manner, monitored by the inductive displacement sensor 31. Once the corresponding adjustment process has been carried out, the clamping device 30 is automatically closed again by hydraulic relief and the hydraulic cylinder 16 is mechanically fixed.
  • the inductive displacement sensor 31 is connected to an electronic measuring device, not shown. With this system, the hydraulic cylinder 16 together with the impact mechanism 6 can be moved continuously into any position.
  • the electronic measuring device can be operated manually or automatically. Among other things, a feedback indicating the respective position of the hydraulic cylinder 16 together with the impact mechanism 6.
  • a basic setting of the gap a or b for a predetermined material and a predetermined final grain size is set in the factory; for example for the material limestone with a peripheral speed of Rotor 4 of 35 m / s and an end grain size 0/60 mm with 70% 0-20 mm grain size, the gap a of the first impact mechanism 6 is set to 40 mm and the gap b of the second impact mechanism 7 to 20 mm.
  • the wear on the blow bars 5 and the baffle plates 8, 9 is essentially already known, so that the control system is able to automatically restore the gap a or b at predetermined time intervals without it increasing Collisions of the striking elements 8 and 5 or 9 and 5 comes.

Landscapes

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

Claims (3)

  1. Concasseur à percussion comportant au moins un rotor (4) motorisé, monté tournant dans un carter (2) et équipé de barres de percussion (5), une gueule d'alimentation (3) pour le matériau à concasser, au moins un corps de percussion avec son mécanisme de réglage, monté dans le carter avec possibilité de basculer, étant entendu que, dans la zone de la gueule d'alimentation (3), sont prévus des dispositifs pour en modifier l'interstice,
    caractérisé en ce que
    l'un des dispositifs est constitué d'une traverse (10), placée, côté gueule d'alimentation, avant le corps de percussion (6) et pouvant se déplacer dans la direction verticale au moyen d'un dispositif de réglage (14) situé en dehors du carter (2), la traverse (10) étant équipée, côté gueule, d'éléments anti-usure (13).
  2. Concasseur à percussion suivant la revendication 1, caractérisé en ce que le mécanisme de réglage (14) est constitué d'au moins un vérin hydraulique.
  3. Concasseur à percussion suivant les revendications 1 à 3, caractérisé en ce que la traverse (10) s'étend essentiellement sur la largeur du rotor (4), et est maintenue et guidée entre des plaques (11, 12).
EP92102489A 1991-05-17 1992-02-14 Concasseur à percussion et procédé de réglage de son interstice de travail Expired - Lifetime EP0513479B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4116134 1991-05-17
DE4116134A DE4116134A1 (de) 1991-05-17 1991-05-17 Prallbrecher und verfahren zum einstellen des arbeitsspaltes

Publications (2)

Publication Number Publication Date
EP0513479A1 EP0513479A1 (fr) 1992-11-19
EP0513479B1 true EP0513479B1 (fr) 1995-07-12

Family

ID=6431855

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92102489A Expired - Lifetime EP0513479B1 (fr) 1991-05-17 1992-02-14 Concasseur à percussion et procédé de réglage de son interstice de travail

Country Status (4)

Country Link
EP (1) EP0513479B1 (fr)
AT (1) ATE124886T1 (fr)
DE (2) DE4116134A1 (fr)
ES (1) ES2076576T3 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4312509A1 (de) * 1993-04-16 1994-10-20 Kloeckner Humboldt Deutz Ag Prallzerkleinerer
DE9413571U1 (de) * 1994-08-23 1995-03-30 Krupp Fördertechnik GmbH, 47226 Duisburg Vorrichtung zur Verstellung der Prallwerke von Prallbrechern
DE4440076C1 (de) * 1994-11-10 1996-04-04 Noell Serv & Maschtechn Gmbh Prallbrecher mit hydraulischer Verstellung des den Zerkleinerungsgrad bestimmenden Mahlspaltes
AT402803B (de) * 1995-02-22 1997-09-25 Wageneder Sbm Gmbh Prallbrecher
DE19511097C1 (de) * 1995-03-25 1996-07-11 Krupp Foerdertechnik Gmbh Verfahren zur automatischen Einstellung des Mahlspaltes einer Zerkleinerungsmaschine und Zerkleinerungsmaschine
DE29701622U1 (de) * 1997-01-31 1998-06-04 Krupp Fördertechnik GmbH, 45143 Essen Prallwerk
AT2938U1 (de) * 1997-04-02 1999-07-26 Schmid & Schneiber Planungs Un Fräsbrecherfahrzeug
FI20040734A (fi) * 2004-05-31 2005-12-01 Raumaster Oy Murskain, sen käyttö ja menetelmä kiintoaineen murskauksessa
ES2319357B1 (es) * 2006-06-14 2010-01-22 Optigenia S.L. Paladar perfeccionado aplicable en molinos de aridos o minerales.
DE102007022236B4 (de) * 2007-05-09 2010-01-14 Hazemag & Epr Gmbh Prallmühle
SE533265C2 (sv) * 2008-12-15 2010-08-03 Sandvik Intellectual Property Slagkross med horisontell axel
SE534783C2 (sv) * 2010-04-16 2011-12-20 Sandvik Intellectual Property Slagkross med horisontell axel
CN113275101B (zh) * 2021-05-20 2022-08-26 黄石海纳新材料科技股份有限公司 一种硅灰石高速破碎机
CN114917985A (zh) * 2022-06-07 2022-08-19 范德湖 一种脱硫灰填料的制备装置及其使用方法
CN115301351A (zh) * 2022-07-12 2022-11-08 湖北枝江峡江矿山机械有限责任公司 根据磨损检测进行自适应调整的破碎机
EP4344781A1 (fr) * 2022-09-30 2024-04-03 Sandvik SRP AB Concasseur à percussion à arbre horizontal

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1129042B (de) * 1959-08-17 1962-05-03 Thaelmann Schwermaschbau Veb Bewegliche Prallplatten fuer Prallbrecher
DE1178682B (de) * 1961-12-29 1964-09-24 Thaelmann Schwermaschbau Veb Schwenkbare Prallplatte fuer Prallbrecher
DE2018496A1 (de) * 1970-04-17 1971-10-28 Hazemag Hartzerkleinerungs- und Zement-Maschinenbau GmbH, 4400 Münster Verfahren zum Betrieb einer Prallmühle
DE3911086C2 (de) * 1988-10-10 1994-10-20 Gronholz Claus Prallbrecher
DE3911271A1 (de) * 1989-04-07 1990-10-11 Salzgitter Maschinenbau Verfahren zum betrieb einer zerkleinerungsmaschine und anlage zur automatischen einstellung der zerkleinerungsmaschine

Also Published As

Publication number Publication date
EP0513479A1 (fr) 1992-11-19
DE59202852D1 (de) 1995-08-17
ES2076576T3 (es) 1995-11-01
ATE124886T1 (de) 1995-07-15
DE4116134A1 (de) 1992-11-19

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