EP0965387B1 - Broyeur pour le traitement respectivement le broyage de matières solides - Google Patents

Broyeur pour le traitement respectivement le broyage de matières solides Download PDF

Info

Publication number
EP0965387B1
EP0965387B1 EP19990890194 EP99890194A EP0965387B1 EP 0965387 B1 EP0965387 B1 EP 0965387B1 EP 19990890194 EP19990890194 EP 19990890194 EP 99890194 A EP99890194 A EP 99890194A EP 0965387 B1 EP0965387 B1 EP 0965387B1
Authority
EP
European Patent Office
Prior art keywords
grinding
mill
grinding chamber
chamber
drum
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
EP19990890194
Other languages
German (de)
English (en)
Other versions
EP0965387A1 (fr
Inventor
Ahmet Dipl. Ing. Balci
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.)
Omag-Montananlagenbau GmbH
Original Assignee
Omag-Montananlagenbau 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 Omag-Montananlagenbau GmbH filed Critical Omag-Montananlagenbau GmbH
Publication of EP0965387A1 publication Critical patent/EP0965387A1/fr
Application granted granted Critical
Publication of EP0965387B1 publication Critical patent/EP0965387B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/10—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with one or a few disintegrating members arranged in the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/04—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with unperforated container
    • B02C17/06—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with unperforated container with several compartments

Definitions

  • the invention relates to a mill for processing or milling of solid materials, in particular solid minerals or mineral mixtures, preferably cement clinker and cement raw materials, having a substantially horizontal axis rotatable cylindrical drum with at least one grinding chamber, wherein on the inner wall of the drum in the circumferential direction extending Mahlbahn is provided, in which at least one rolling element is arranged freely movable, and in the drum designed as a sieve partition is arranged.
  • Drum mills of this type are known from DE 36 18 461 A1 and EP 0 245 232 A2.
  • the first grinding chamber is an antechamber with at most four steel balls arranged in a groove-shaped running surface whose diameter is approximately 1 m.
  • the second grinding chamber is formed as a conventional ball mill with ball piles therein.
  • EP 0 245 232 A2 discloses a ball-and-tube mill consisting of two cylindrical chambers, in the first chamber of which a circular ring or a circular disk is used as a grinding body.
  • the annulus or disc runs in a groove bottom of the inner liner which lines a portion of the shell of the grinding chamber.
  • the flanks forming the groove bottom are formed as part of the inner lining and make it difficult for the grinding body to slide out in the horizontal direction.
  • an apertured partition wall is provided to the inner lining 10 then an apertured partition wall is provided.
  • cement clinker and cement raw materials are despite the relatively low The degree of comminution and the limited feed grain size are still used today in ball mills.
  • Ball mills can be operated relatively easily in a stable state.
  • the maintenance and repair costs are relatively low, as well as the investment costs. Further advantages are the operational safety and the availability. These reasons suggest that ball mills are still widely used and still today are the best-selling grinders.
  • the object of the invention is to provide a mill in which the disadvantages of the previously known mills are eliminated to a high degree and with which a grinding of coarser material in a more efficient, economical and energy-saving manner without high maintenance and maintenance is possible.
  • the mill according to the invention is characterized in that arranged on the outlet side in the grinding chamber a wall projecting into the grinding chamber guide element for freely movable in the grinding path arranged rolling elements for gentle return to the lowest point of the grinding path when the rolling elements has been taken a piece by grinding, is provided.
  • a second grinding chamber provided in the drum is designed in a manner known per se as a ball mill, and the dividing wall is arranged between the two grinding chambers.
  • a further embodiment of the invention is that the length of the grinding chamber designed as a ball mill at least equal to that of the first grinding chamber.
  • these two grinding chambers having mill is also used as the only one chamber comprehensive mill for both final grinding and as Vormahlaggregat.
  • the great advantage of the mill according to the invention further consists in the fact that in a simple way existing grinding plants can be retrofitted with such a mill to increase the efficiency of grinding and can be used in a system of successive grinding units.
  • FIG. 1 shows a grinding plant with a mill according to the invention and Fig la the inventive mill of Figure 1 on an enlarged scale
  • Fig. 2 shows another embodiment of a grinding plant with the mill according to the invention 1 shows another embodiment of the mill according to the invention
  • FIG. 4 a shows the mill of FIG. 4 in accordance with the invention.
  • FIG show enlarged scale.
  • Fig. 1 shows a grinding plant comprising a plurality of bunkers 1 for optionally different ground material, a transport path 2 for the ground material to a mill 3.
  • the mill 3 consists of a drum 4 with a grinding chamber 5.
  • the drum 4 is set by means of a ring gear 6 about a horizontal axis in a rotational movement.
  • a circumferential on the inner wall of the drum 4 in the direction of rotation groove-shaped grinding path 7 is arranged, in which case two consecutive grinding balls 8th roll off.
  • the ratio of the depth of the groove-shaped grinding track 7 to the diameter of the grinding ball 8 is in the range between 1: 2 and 1: 3, which may be up to 1:10.
  • the millbase fed via the transport path 2 through a feed opening 9 of the grinding chamber 5 is ground by means of the solid grinding ball (s) 8, which is preferably made of steel.
  • the grinding ball (s) 8 roll by the rotational movement of the mill 3 in the groove-shaped grinding path 7 and crush the hereby abandoned on the grinding path 7 regrind, preferably the diameter of the grinding ball 8 corresponds approximately to 10 times the diameter of the maximum feed grain.
  • partition 10 limits the grinding chamber 5 of an outlet 11. At the partition 10 is projecting into the grinding chamber 5 guide member 12 for freely arranged in the groove-shaped grinding path 7 Mahlkugel (s) 8 provided. A central opening 13 in the partition wall 10 serves the passage of dust-laden gases, which are finally derived by a connected to the outlet 11 line 14.
  • the mill 3 can be used both for pre-grinding and for final grinding.
  • the crushed material is passed through the outlet 11 to conveyors 15 which further convey the milled material to a separation apparatus 16, e.g. an air classifier, which separates the finished crushed material from the coarse material.
  • a separation apparatus 16 e.g. an air classifier, which separates the finished crushed material from the coarse material.
  • the comminuted, but still too coarse waste material of the separation apparatus 16 is in turn fed to the grinding circuit of the mill 3 in a system of final grinding.
  • the material passes through the grinding cycle until it has the required fineness and is separated from the separating apparatus 16 as finished product.
  • the mill 3 can also be used, in particular, as a premilling unit in a system of successive grinding units.
  • a premilling unit in contrast to the final grinding that is returned by the separating apparatus 16, still too rough, 2, not entirely supplied to the grinding circuit of the mill, but to a further downstream grinding unit 17, for example a conventional ball mill, which finishes the material pre-shredded by the upstream mill 3 to final fineness.
  • the recirculated from the separator 16, still too coarse, pre-shredded material can be up to 100% fed to the downstream grinding unit 17.
  • the mill 3 can also be used as a pre-comminution grinding aggregate to an existing or new, downstream grinding unit 17.
  • the pre-shredded material is fed directly to the downstream grinding unit 17.
  • the material passes through the mill 3, which now serves for pre-shredding, only once.
  • the grinding plant according to FIG. 4 essentially corresponds to that according to FIG. 1, but it comprises a mill 3a, which is designed as a two-chamber mill and can be displaced by a toothed rim 6 in rotational movement about a horizontal axis of rotation.
  • the one grinding chamber 5 a, into which the feed opening 9 opens, is designed like the grinding chamber 5 of the mill 3 (FIG. 1 a).
  • a groove-shaped grinding track 7a revolving around the inner wall of the drum 4a in the direction of rotation is again arranged in the grinding chamber 5a, in which case two grinding balls 8a running one behind the other roll off.
  • a dividing wall 10a designed as a sieve separates the first grinding chamber 5a from a second grinding chamber 5b, which is filled with grinding balls 18 corresponding to the known filling levels of a conventional ball mill and having a size of 30 to a maximum of 100 mm.
  • the second grinding chamber 5b of the outlet 11 connects.
  • the length of the second grinding chamber should be at least as long as that of the first grinding chamber 5a.
  • the two-chamber mill 3a can also be used both for the final grinding and as a premilling unit in a system of series-connected grinding units.

Landscapes

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

Claims (3)

  1. Broyeur pour la préparation respectivement le broyage de matières solides, notamment de minéraux solides ou de mélanges de minéraux, de préférence de scories de ciment et de composants du ciment, comprenant un tambour cylindrique tournant autour d'un axe essentiellement horizontal et renfermant au mois une chambre de broyage, une trajectoire de broyage s'étendant dans la direction du pourtour étant prévue sur la paroi intérieure du tambour, sur laquelle se trouve au moins un corps broyant se déplaçant librement, et une cloison réalisée en tant que crible étant placée dans le tambour, caractérisé en ce que sur la cloison (10, 10a) située du côté de la sortie dans la chambre de broyage (5, 5a) est prévu un élément de guidage (12, 12a) pénétrant dans la chambre de broyage (5, 5a) et destiné au corps broyant (8, 8a) se déplaçant librement sur la trajectoire de broyage (7, 7a), afin de ramener doucement le corps broyant au point le plus inférieur de la trajectoire de broyage lorsqu'il a été quelque peu entraîné par la matière à broyer.
  2. Broyeur selon la revendication 1, caractérisé en ce qu'une seconde chambre de broyage (5b) prévue dans le tambour est réalisée d'une manière connue en soi en tant que broyeur à boulets, et en ce que la cloison (10a) est placée entre les deux chambres de broyage (5a, 5b).
  3. Broyeur selon la revendication 2, caractérisé en ce que la longueur de la seconde chambre de broyage (5b) réalisée en tant que broyeur à boulets est au moins égale à celle de la première chambre de broyage (5a).
EP19990890194 1998-06-17 1999-06-16 Broyeur pour le traitement respectivement le broyage de matières solides Expired - Lifetime EP0965387B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT104498 1998-06-17
AT104498 1998-06-17

Publications (2)

Publication Number Publication Date
EP0965387A1 EP0965387A1 (fr) 1999-12-22
EP0965387B1 true EP0965387B1 (fr) 2006-08-23

Family

ID=3505371

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19990890194 Expired - Lifetime EP0965387B1 (fr) 1998-06-17 1999-06-16 Broyeur pour le traitement respectivement le broyage de matières solides

Country Status (2)

Country Link
EP (1) EP0965387B1 (fr)
DE (1) DE59913789D1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010017394A1 (de) * 2010-06-16 2011-12-22 Polysius Ag Verfahren zur Zerkleinerung von Mahlgut mit Hilfe einer Rohrmühle

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE160215C (fr) * 1904-07-06
US3987969A (en) * 1975-03-10 1976-10-26 Kvaerner Brug A/S Method and disc mill for grinding of material
DE3618461A1 (de) 1985-06-04 1986-12-04 Voest-Alpine Ag, Linz Kugelrohrmuehle
ATA108786A (de) 1986-04-23 1989-07-15 Voest Alpine Ag Kugelrohrmuehle

Also Published As

Publication number Publication date
DE59913789D1 (de) 2006-10-05
EP0965387A1 (fr) 1999-12-22

Similar Documents

Publication Publication Date Title
EP2482987B1 (fr) Procédé et dispositif de fragmentation de matière minérale
DE102009037660A1 (de) Verfahren und Vorrichtung zur Feinmahlung von mineralischen Materialien
EP0406591B1 (fr) Procédé et installation de broyage de matière à broyer
EP1850962B1 (fr) Systeme de broyage et procede pour broyer de la matiere
DE4303987A1 (de) Mahlverfahren und zugehörige Mahlanlage
EP0237641B1 (fr) Installation pour le broyage de matière à broyer fragile
EP1640070B1 (fr) Installation et procédure de fragmentation du produit de passage à la meule
EP0965387B1 (fr) Broyeur pour le traitement respectivement le broyage de matières solides
DE102018212830B3 (de) Zerkleinerungsverfahren und -anlage
DE3538991A1 (de) Verfahren zur feinstzerkleinerung von mineralischen stoffen und vorrichtung zur durchfuehrung des verfahrens
DE4213608C2 (de) Vorrichtung zum Zerkleinern von Gummibrocken
EP2407244B1 (fr) Procédé de broyage de matière à l'aide d'un broyeur tubulaire
DE3711926A1 (de) Einrichtung zur zerkleinerung und mahlung sproeden mahlgutes wie z. b. zementklinker, erz, kohle oder dergleichen
DE10147591B4 (de) Mahlanlage
EP1448303B1 (fr) Tube broyeur et procede pour broyer des produits a moudre en morceaux
EP2760586A2 (fr) Broyeur à cylindres et procédé de broyage d'une matière à broyer cassante
EP0901828A1 (fr) Procédé et installation de broyage en circuit fermé de matériau friable
AT2879U1 (de) Mühle für feste materialien
DE3504584A1 (de) Anlage zur zerkleinerung von mahlgut
DE3618461A1 (de) Kugelrohrmuehle
DE3323517A1 (de) Anlage zur zerkleinerung sproeden mahlgutes wie z. b. zementklinker, erz, kohle oder dergleichen
DE2040663A1 (de) Muehle
AT338598B (de) Vorrichtung zum mahlen von beliebigem mahlgut
DE2517966C3 (de) Verwendung einer Anlage zur Herstellung von feinkörnigem Gut zum Zwecke der Herstellung von Strahlsand für Sandstrahlapparate aus Schmelzkammerschlackengranulat
DE1930403C3 (de) Einrichtung zum Zerkleinern von stückigem und grobkörnigem Gut

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE DK ES FR IT

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20000623

AKX Designation fees paid

Free format text: DE DK ES FR IT

17Q First examination report despatched

Effective date: 20050104

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE DK ES FR IT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20060823

REF Corresponds to:

Ref document number: 59913789

Country of ref document: DE

Date of ref document: 20061005

Kind code of ref document: P

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061123

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061204

EN Fr: translation not filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20070524

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070511

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060823

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20090630

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110101