WO1993003844A1 - Procede et dispositif de broyage - Google Patents

Procede et dispositif de broyage Download PDF

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Publication number
WO1993003844A1
WO1993003844A1 PCT/EP1992/000694 EP9200694W WO9303844A1 WO 1993003844 A1 WO1993003844 A1 WO 1993003844A1 EP 9200694 W EP9200694 W EP 9200694W WO 9303844 A1 WO9303844 A1 WO 9303844A1
Authority
WO
WIPO (PCT)
Prior art keywords
feed
rotor
discharge
stator
oversize
Prior art date
Application number
PCT/EP1992/000694
Other languages
German (de)
English (en)
Inventor
Rudi Goldau
Original Assignee
Rudi Goldau
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 Rudi Goldau filed Critical Rudi Goldau
Priority to JP4506846A priority Critical patent/JPH06509739A/ja
Publication of WO1993003844A1 publication Critical patent/WO1993003844A1/fr

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
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
    • 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
    • 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
    • B02C13/286—Feeding or discharge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
    • B02C23/10—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone
    • B02C23/12—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone with return of oversize material to crushing or disintegrating zone
    • 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
    • B02C13/286—Feeding or discharge
    • B02C2013/2869—Arrangements of feed and discharge means in relation to each other

Definitions

  • the invention relates to a method for comminuting material consisting of metallic and / or non-metallic materials by means of a device which essentially consists of a stator and a rotor, the stator being provided with impact elements and the rotor being provided with impact elements, and for feeding the material to be shredded and a discharge for the material from the device, and a device for performing the method.
  • the material to be comminuted is circulated in the device until the largest part of the material introduced has the desired grain size.
  • this requires a considerable expenditure of energy and, on the other hand, leads to a substantial part of the introduced material being discharged from the device as undersize, right down to the dusty fine grain.
  • the invention has for its object to provide a method and an apparatus for performing the method that require very little energy and in which only a relatively small proportion of undersize is obtained.
  • the solution to the problem is that the good to be comminuted is fed into the device through the feed and the good or at least the essential part of the good passes through the device in a circular movement of less than 360 °, that then the good or its essential part is discharged again via the discharge and fed to a classifying device in which the good is separated into two fractions - oversize and desired grain size - and that the oversize is then returned and a further feed is fed back into the device and added to the material input into the device via the first-mentioned feed, while the grain of the desired grain size discharged from the classifying device is discharged via the discharge.
  • the material or its essential part in the device merely bears a circular movement of less than 360 ° and is then discharged again in order to finally return to the after separating the grain with the desired grain size
  • the material remains in the device only exactly until it has reached the desired grain size. This means that only a minimum of energy is required.
  • the advantage is achieved that the material is no longer shredded as is absolutely necessary, and therefore only very little undersize occurs, so that environmental pollution caused by very fine to dusty undersize - which can lead to considerable dust development - no longer occurs or at least is kept within very narrow limits. Furthermore, the considerable costs for dedusting systems to be expended in the other case are saved.
  • Another advantage of the invention is that the collision of the material input via the feed into the device with the oversize particles returned already causes the material to be comminuted. Since therefore already partial shredding of the material without the impact of the impact and impact elements, the wear of the impact and impact elements is correspondingly low.
  • the material to be comminuted passes through the device in a circular movement of approximately 270 °.
  • the oversize grain passes through the device in a circular movement of approximately 180 ° in order to then be discharged again. In many cases this is sufficient to achieve the desired grain size.
  • the device for carrying out the method according to the invention has the following features:
  • the discharge for the goods is arranged offset by less than 360 ° to the feed
  • a baffle plate is provided between the discharge for the goods and the feeder, which feeds the goods or at least a substantial part of the goods to the discharge, - the discharge is connected to a classifying device in which the goods are divided into two fractions Oversize and in grain of desired grain size - is separated, which is provided with a discharge for the desired grain size and which is connected to the device via a return and a further feed for the oversize.
  • the discharge for the goods is approximately 270 ° to the feed - measured in the direction of rotation of the rotor - staggered.
  • the feed associated with the return for the oversize grain emerging from the classifying device is offset by at least 180 ° to the outlet for the material - measured in the direction of rotation of the rotor.
  • the feed for the material to be shredded is expediently arranged above the device.
  • At least the lower region of the stator is designed as an outlet grate, the outlet grate preferably being formed by sieves with adjustable passage openings.
  • the outlet grate can also extend over the upper area of the stator.
  • the through openings of the outlet grate correspond to the desired grain size. As a result, the desired grain size can exit the device at almost all points and then be removed.
  • the classifying device is designed as a sieve drum. This ensures a quick and perfect separation of the oversize from the material with the desired size.
  • the baffle elements are arranged to be displaceable in the radial direction or parallel thereto. This means that the cutting gap, i.e. the distance between the impact elements of the stator and the striking elements of the rotor, set very precisely and adjusted if necessary.
  • the rotating percussion elements of the rotor are designed as knives. This means that the grain with the desired grain size is obtained as an approximately spherical product.
  • the rotor of the device is connected to a flywheel. It is thereby achieved that unused energy is taken up and released again if necessary. This leads to further energy savings.
  • the flywheel is expediently arranged on the rotor axis outside the rotor.
  • the device according to the invention can be further improved in that a feed roller, a pressing device or the like. Positive guidance is provided in the feed for the material to be comminuted.
  • the feed roller prevents the material to be shredded from getting stuck in the feeder. It also enables a correct metering of the material to be shredded in that the feed roller, the pressing device or the like is designed to be adjustable in the horizontal direction.
  • the drive of the rotor is designed to be reversible. This makes it possible to change the direction of rotation of the rotor at certain intervals to reverse briefly, so that the impact elements and the knives are ground by the friction of the impact elements and the impact elements designed as knives on the material located in the device.
  • a further improvement of the device according to the invention is achieved in that in the wall of the stator there is a water supply which runs out into several nozzles and through which water can be directed in a free jet onto the rotor.
  • the water emerging from the nozzles prevents or at least considerably reduces the formation of dust or gas mixtures.
  • the water emerging from the nozzles can cool the rotor striking elements, which are designed as knives, during grinding.
  • FIG. 2 shows a cross section through a device according to the invention, likewise in a schematic illustration.
  • the material to be shredded is fed to a device which consists of a stator 1 and a rotor 2, the direction of rotation of the rotor 2 being indicated by an arrow 3 .
  • the material to be shredded enters the Contraption.
  • the good or a substantial part of the good passes through the device in a circular movement of less than 360 ° and is then discharged through a discharge 5 and fed to a classification device 6.
  • the material is separated into two fractions, oversize and the desired grain size.
  • the oversize particles are returned to the device via a return 7 and a further feed 8 and added to the material input into the device via the feed 4.
  • the grain of the desired grain size discharged from the classifying device 6 via the discharge 9 is discharged.
  • the device shown in FIG. 2 consists of a stator 1 and a rotor 2, the circular movement of which is indicated by an arrow 3.
  • Adjustable impact elements 10 are attached in the stator 1 of the device, while the rotor 2 is provided with striking elements 11. At least the lower area of the stator 1 is designed as an outlet grate 13.
  • a feed 4 for the material to be shredded is arranged in the upper region of the device, in which a feed roller 14 which is adjustable in the horizontal direction is provided.
  • the device also has a laterally arranged discharge 5, via which the material is fed to a classification device, not shown.
  • the oversize grain emerging from the classifying device is passed via a return, also not shown, to a feed 8 which is diametrically opposite to the discharge 5.
  • a baffle plate 12 is provided between the discharge 5 and the feed 4, which is designed in such a way that the good or at least a substantial part of the good is fed to the discharge 5.
  • the rotor 2 is connected to a flywheel, not shown, the flywheel being arranged on the axis A of the rotor 2 outside the rotor 2.

Landscapes

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

Abstract

Un procédé et un dispositif permettent de broyer des produits composés de matériaux métalliques et/ou non métalliques. Le dispositif comprend essentiellement un stator (1) et un rotor (2). Le stator (1) est pourvu d'éléments d'impact (10) et le rotor (2) est pourvu d'éléments percutants rotatifs (11). Le dispositif comprend une amenée (4) des produits à broyer et une sortie (5) d'évacuation des produits. Selon le procédé, les produits à broyer sont introduits dans le dispositif par l'amenée (4). Les produits ou au moins la plus grande partie des produits traversent le dispositif, effectuant un mouvement circulaire sur moins de 360°. Puis les produits ou leur plus grande partie sont évacués par la sortie (5) et transmis à un système de triage dans lequel les produits sont triés en deux fractions: le surclassé et les grains de la grosseur voulue. Finalement, le surclassé est ramené par un conduit de retour (7) et par une amenée supplémentaire (8) dans le dispositif et ajouté aux produits introduits dans le dispositif par la première amenée (4), alors que les grains ayant la grosseur voulue sont évacués du système de triage (6) par la sortie (9).
PCT/EP1992/000694 1991-08-27 1992-03-28 Procede et dispositif de broyage WO1993003844A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4506846A JPH06509739A (ja) 1991-08-27 1992-03-28 砕料を破砕するための方法と装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4128373.2 1991-08-27
DE19914128373 DE4128373A1 (de) 1991-08-27 1991-08-27 Verfahren und vorrichtung zum zerkleinern von gut

Publications (1)

Publication Number Publication Date
WO1993003844A1 true WO1993003844A1 (fr) 1993-03-04

Family

ID=6439209

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1992/000694 WO1993003844A1 (fr) 1991-08-27 1992-03-28 Procede et dispositif de broyage

Country Status (3)

Country Link
JP (1) JPH06509739A (fr)
DE (1) DE4128373A1 (fr)
WO (1) WO1993003844A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10751724B2 (en) 2012-06-20 2020-08-25 Sandvik Intellectual Property Ab Method of feeding material to a horizontal shaft impact crusher, and a crushing device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29701622U1 (de) * 1997-01-31 1998-06-04 Krupp Fördertechnik GmbH, 45143 Essen Prallwerk
JP4412558B2 (ja) 2006-07-25 2010-02-10 晃立工業株式会社 粉砕機

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB316922A (en) * 1928-05-05 1929-08-06 Hugh Alexander Livingstone Improvements in the pulverisation and separation of cereals, minerals and the like
DE1627248A1 (de) * 1967-02-15 1970-08-06 Pintsch Bamag Ag Spaenebrecher,insbesondere fuer Reinaluminiumspaene
EP0053755A2 (fr) * 1980-12-08 1982-06-16 Edwin Eisenegger Procédé et installation pour le broyage à impact
DE3708914A1 (de) * 1986-03-24 1987-10-08 Buehler Ag Geb Anlage mit mindestens einer schlagmuehle

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE867639C (de) * 1943-08-14 1953-02-19 Steinmueller Gmbh L & C Einrichtung zum Regeln der Mahlfeinheit bei Kohlenstaubmuehlen
DE883223C (de) * 1951-04-25 1953-07-16 Anatole Gobiet Schlaegermuehle mit Sieb
DE1231094B (de) * 1963-07-11 1966-12-22 Wilhelm Diefenbacher K G Hammermuehle zum Zerkleinern von Erde, Torf, Muell, Kompoststoffen und aehnlichen Abfall-produkten
DE2418699C3 (de) * 1974-04-18 1978-11-23 Johann 8399 Kleeberg Nagy Schlägermühle
DE2419835A1 (de) * 1974-04-24 1975-11-20 Pennsylvania Crusher Corp Zerkleinerungsmaschine
DE2713177C2 (de) * 1977-03-25 1989-06-08 Lindemann Maschinenfabrik GmbH, 4000 Düsseldorf Hammerbrecher
DE3138259A1 (de) * 1981-09-25 1983-04-14 Eisenegger, Edwin, 9242 Oberuzwil Prallmahl-verfahren und -anlage
DD234800A1 (de) * 1985-02-22 1986-04-16 Inst F Kommunalwirtschaft Mahlbahn fuer prallhammermuehlen
DE8634409U1 (de) * 1986-12-22 1987-02-26 Diefenbacher, Wilhelm, 7500 Karlsruhe Maschine zum Zerkleinern von landwirtschaftlichem und sonstigem zerkleinerungsfähigem Gut
DE4016295A1 (de) * 1990-05-21 1991-11-28 Lindemann Maschfab Gmbh Hammerbrecher

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB316922A (en) * 1928-05-05 1929-08-06 Hugh Alexander Livingstone Improvements in the pulverisation and separation of cereals, minerals and the like
DE1627248A1 (de) * 1967-02-15 1970-08-06 Pintsch Bamag Ag Spaenebrecher,insbesondere fuer Reinaluminiumspaene
EP0053755A2 (fr) * 1980-12-08 1982-06-16 Edwin Eisenegger Procédé et installation pour le broyage à impact
DE3708914A1 (de) * 1986-03-24 1987-10-08 Buehler Ag Geb Anlage mit mindestens einer schlagmuehle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10751724B2 (en) 2012-06-20 2020-08-25 Sandvik Intellectual Property Ab Method of feeding material to a horizontal shaft impact crusher, and a crushing device

Also Published As

Publication number Publication date
JPH06509739A (ja) 1994-11-02
DE4128373A1 (de) 1993-03-04

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