EP0982074B1 - Broyeur agitateur - Google Patents

Broyeur agitateur Download PDF

Info

Publication number
EP0982074B1
EP0982074B1 EP99114311A EP99114311A EP0982074B1 EP 0982074 B1 EP0982074 B1 EP 0982074B1 EP 99114311 A EP99114311 A EP 99114311A EP 99114311 A EP99114311 A EP 99114311A EP 0982074 B1 EP0982074 B1 EP 0982074B1
Authority
EP
European Patent Office
Prior art keywords
grinding
agitator
auxiliary
return line
inlet
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
EP99114311A
Other languages
German (de)
English (en)
Other versions
EP0982074A1 (fr
Inventor
Horst Gross
Wendelin Kneisl
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.)
Buehler GmbH
Original Assignee
Buehler AG
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 Buehler AG filed Critical Buehler AG
Publication of EP0982074A1 publication Critical patent/EP0982074A1/fr
Application granted granted Critical
Publication of EP0982074B1 publication Critical patent/EP0982074B1/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
    • B02C17/16—Mills in which a fixed container houses stirring means tumbling the charge

Definitions

  • the invention has for its object a stirrer mill with a external grinding aid circulation to create an even and stable circulation of the auxiliary grinding bodies takes place.
  • the confluence of the The grinding aid return line to the grinding chamber is on the one hand radial to the axis of the agitator shaft as close as possible to the agitator shaft and on the other hand at the end of the grinding chamber, where the regrind supply line opens.
  • each is a so-called horizontal agitator mill.
  • This has a machine frame essentially formed by a base plate 1, which is supported on the floor.
  • a drive motor 2 which may be speed-controllable, which is provided with a V-belt pulley 3.
  • a bearing housing 4 is arranged on the machine frame 1, in which a drive shaft 5 is rotatably mounted.
  • the drive shaft 5 is at its end adjacent to the V-belt pulley 3 also with a V-belt pulley 6 provided with the V-belt pulley 3 of the drive motor 2 is in drive connection via V-belt 7.
  • the V-belt pulleys 3, 6 and the V-belts 7 are provided with a cover 8.
  • a cylindrical grinding container 9 with its lid 10 by means of threaded bolts 11 attached.
  • the grinding container 9 is on its the bearing housing 4 opposite end closed by a bottom 12.
  • an agitator 14 arranged, the one rotatably connected to the drive shaft 5, flying Staged agitator shaft 15.
  • stirring tools 16 attached, with the stirring discs 17 Passage openings 18 are formed.
  • the agitator shaft 15, the drive shaft 5 and the grinding container 9 have a common axis 19.
  • a regrind feed line 20 opens through the cover 10 into the grinding chamber 13, through which the grinding chamber 13 is to be treated by means of a pump 20a Grist is fed. In the area of the bottom 12 opens Grist discharge line 21 from the grinding chamber 13, through the finished treated Regrind is removed.
  • This discharge line 21 is at least one Separating device 22 assigned, which is usually at least a so-called sieve cartridge that protrudes into the grinding chamber 13 namely in the space between the floor 12 and the nearest one Stirring disc 17.
  • sieve cartridges have a design as they for example from DE-PS 20 37 258 (corresponds to US Pat. No. 3,780,957) and DE 35 36 857 C (corresponds to US Pat. No. 4,739,936) are known.
  • the grinding room 13 is to a considerable extent, for example 70 to 90%, with Grinding auxiliary bodies 23 filled.
  • the separating device 22 is designed that such auxiliary grinding bodies 23 do not get into the discharge line 21 can.
  • All embodiments have a grinding aid return line 24 on, which opens out adjacent to the separating device 22 from the grinding chamber 13 and adjacent to the regrind feed line 20 back into the grinding chamber opens.
  • the junction 25 is located near the Agitator shaft 15, that is in the region of a local vacuum.
  • the mouth 26 of the return line 24, however, is in the wall 27 of the grinding container 11, i.e. on the periphery of the grinding chamber 13, ie in Local overpressure range. This makes a particularly good and effective circulation of the auxiliary grinding bodies 23 from the area of the regrind supply to the area of the separating device 22 and back to the area of the Grist feed reached.
  • a shut-off valve can be in the return line 24 28 to partially or completely block the return line 24 can be provided, by means of which the degree of grinding aid circulation being affected.
  • the mouth 26 is located the grinding aid return line 24 immediately next to the connection the discharge line 21 to the separating device 22, that is to say adjacent to the floor 12.
  • the mouth 25 of the return line 24 is between the two stirring discs 17 adjacent to the cover 10 near the immediate vicinity of the agitator shaft 15.
  • To initiate the emerging from the mouth 25 of the return line 24 into the grinding chamber 13 To improve grinding aid body 23 are the passage openings 18a in the agitator disc 17a inclined towards the agitator shaft 15. at the stirring disk 17a is seen from the lid 10 second stirring disc, which is adjacent to the junction 25 on the Mouth 26 facing side is arranged.
  • the return line 24 is radial in this area, that is to say, dip tube 30 displaceable transversely to axis 19 in direction 29. Because of the formation between adjacent stirring disks 17, only in Fig. 2 more precisely indicated circulation flow 31 prevails near the agitator shaft 15 the highest negative pressure in the grinding chamber 13. On the periphery, ie in the area of the wall 27, there is, however highest pressure in the grinding chamber 13. This applies in particular to the area radial around a stirring disk 17. For this reason, the last stirring disk 17b, arranged radially to the mouth 26 of the return line 24 is twice as thick, i.e. with twice the axial extent as the remaining stirring discs 17 are formed.
  • FIG. 3 differs from that of FIG. 2 in essential only in that the return line 24 'through the lid 10 'opens into the grinding chamber 13, the opening 25' immediately is adjacent to the agitator shaft 15.
  • the feed line 20 opens radially further out into the grinding chamber 13. Otherwise, all reference numerals in Fig. 3 the same meaning as in Fig. 2, so that the above Description can be referenced.
  • the grinding aid return line opens 24 "in a surrounding the agitator shaft 15, in the cover 10 "attached and penetrating it and towards the grinding chamber 13 open cup-shaped connecting piece 32 a.
  • the junction 25 '' is located also directly adjacent to the agitator shaft 15, in an area of high local negative pressure. The following also applies here the description above.
  • the regrind feed line opens 20 '' 'through the floor 12' '' into the grinding chamber 13 while the separator 22 '' 'is near the lid 10' '' and there into the Regrind discharge line 21 '' 'is connected.
  • Separating device 22 ''' from at least two sieve cartridges, on both sides the agitator shaft 15 arranged and guided past this laterally are.
  • the mouth 26 '' 'of the grinding aid return line 24' '' is located immediately adjacent to the separating device 22 '' '.
  • the stirring disc 17c i.e. the one closest to the cover 10 '' ' Agitator disc, thicker than the other agitator discs 17.
  • the regrind to be ground is by means of the Pump 20a through the grinding stock feed line 20, 20 '' 'into the grinding chamber 13 introduced and then together with the grinding aids through this transported, with the high-speed rotation of the agitator 14 in a known way of dispersing and crushing the in flowable Suspended ground material takes place.
  • the separating device 22 or 22 '' 'the regrind is removed.

Landscapes

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

Claims (9)

  1. Broyeur agitateur avec un récipient de broyage (9) limitant par une paroi cylindrique (27) et un couvercle (10, 10', 10", 10''') et un fond (12, 12''') un espace de broyage (13) pouvant être rempli d'éléments broyeurs auxiliaires, avec un agitateur (14) disposé dans le récipient de broyage (9) qui comporte un arbre d'agitation (15) et des outils d'agitation (16) placés sur ledit arbre,
       avec un moteur d'entraínement (2) pour un entraínement par rotation de l'agitateur (14) autour d'un axe (19),
       avec une conduite d'amenage (20, 20''') de la matière à broyer disposée au moins à proximité du couvercle (10, 10', 10'', 10''') ou du fond (12'''), débouchant dans l'espace de broyage (13),
       avec un dispositif de séparation de l'élément broyeur auxiliaire de la matière à broyer (22, 22''') débouchant dans une conduite d'évacuation de la matière broyée (21, 21'''), lequel dispositif est disposé au moins à proximité du fond (12) ou du couvercle, caractérisé par une conduite de retour de l'élément broyeur auxiliaire (24, 24', 24'', 24''') qui est séparée de la conduite d'amenage de la matière à broyer (20, 20'''), et par un orifice de décharge (26, 26''') sortant de l'espace de broyage (13) au niveau de la paroi cylindrique (27) et à proximité du dispositif de séparation (22''') et
       comporte une embouchure (25, 25', 25'', 25''') dans l'espace de broyage (13) radiale par rapport à l'axe (19) dans le voisinage de l'arbre d'agitation (15) au niveau d'une pression père locale et dans le sens de l'axe (19) à proximité de l'embouchure de la conduite d'amenage de la matière à broyer (20, 20''').
  2. Broyeur agitateur selon la revendication 1, caractérisé en ce que l'embouchure (25) de la conduite de retour de l'élément broyeur auxiliaire (24) est réalisée sur un tube plongeur formant une section de l'élément broyeur auxiliaire (24), lequel tube est disposé entre des outils d'agitation espacés et voisins dans le sens de l'axe (19).
  3. Broyeur agitateur selon la revendication 2, caractérisé en ce que le tube plongeur (30) est réalisé de manière à pouvoir être coulissé, l'intervalle de l'embouchure (25) peut être réglé à partir de l'arbre d'agitation (15).
  4. Broyeur agitateur selon la revendication 1, caractérisé en ce que l'embouchure (25') de la conduite de retour de l'élément broyeur auxiliaire (24') est réalisée dans le couvercle (10').
  5. Broyeur agitateur selon la revendication 1, caractérisé en ce que l'embouchure (25'') de la conduite de retour de l'élément broyeur auxiliaire (24'') est disposée hors de l'espace de broyage (13) dans un raccord (32) relié à l'espace de broyage (13), traversant le couvercle (10'') et entourant l'arbre d'agitation (15).
  6. Broyeur agitateur selon la revendication 1, caractérisé en ce que l'embouchure (25''') de la conduite de retour de l'élément broyeur auxiliaire (24''') est disposé dans l'espace de broyage (13) au fond (12''') et de manière concentrique par rapport à l'axe (19).
  7. Broyeur agitateur selon la revendication 1, caractérisé en ce qu'au moins un outil d'agitation (16) est disposé à proximité de l'embouchure (26, 26''') de la conduite d'amenage de l'élément broyeur auxiliaire (24, 24', 24'', 24"').
  8. Broyeur agitateur selon la revendication 1, caractérisé en ce que le récipient de broyage (9) est réalisé avec l'axe horizontal (19).
  9. Broyeur agitateur selon la revendication 1, caractérisé en ce que l'embouchure (25, 25', 25'', 25''') est disposée par rapport à l'axe (19) radialement plus près de l'arbre d'agitation (15) que l'embouchure de la conduite d'amenage de la matière à broyer (20, 20''') dans l'espace de broyage (13).
EP99114311A 1998-08-28 1999-07-21 Broyeur agitateur Expired - Lifetime EP0982074B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19839210 1998-08-28
DE19839210A DE19839210B4 (de) 1998-08-28 1998-08-28 Rührwerksmühle

Publications (2)

Publication Number Publication Date
EP0982074A1 EP0982074A1 (fr) 2000-03-01
EP0982074B1 true EP0982074B1 (fr) 2004-05-26

Family

ID=7879044

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99114311A Expired - Lifetime EP0982074B1 (fr) 1998-08-28 1999-07-21 Broyeur agitateur

Country Status (4)

Country Link
US (1) US6260779B1 (fr)
EP (1) EP0982074B1 (fr)
DE (2) DE19839210B4 (fr)
ES (1) ES2221272T3 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010052656A1 (de) * 2010-11-26 2012-05-31 Netzsch-Feinmahltechnik Gmbh Hydraulische Mahlkugel Zu- und Abfuhr für Rührwerkskugelmühlen
BR102018009587A2 (pt) * 2018-05-11 2019-11-26 Metso Brasil Industria E Comércio Ltda. Sistema de alimentação de corpos de cominuição em moinhos verticais
CN112121984B (zh) * 2020-09-09 2021-10-29 东莞市康搏智能装备有限公司 一种双杆型砂磨机用具有清理机构的研磨装置
DE102021101527B4 (de) 2021-01-25 2023-05-17 Wilhelm Niemann Gmbh & Co. Rührwerksmühle
CN117258929B (zh) * 2023-11-21 2024-01-30 威顿水泥集团有限责任公司 一种水泥生产用的进料装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2037258C3 (de) 1970-07-28 1974-10-17 Draiswerke Gmbh, 6800 Mannheim Geschlossene Rührwerksmühle
DE3106062A1 (de) * 1981-02-19 1982-09-09 Draiswerke Gmbh, 6800 Mannheim Ruehrwerksmuehle
DE3536857C2 (de) 1984-11-16 1994-06-09 Draiswerke Gmbh Geschlossene Rührwerksmühle mit Siebpatronen
DE4432198A1 (de) * 1994-09-09 1996-03-14 Evv Vermoegensverwaltungs Gmbh Rührwerksmühle
DE4432200C1 (de) 1994-09-09 1996-02-29 Evv Vermoegensverwaltungs Gmbh Rührwerksmühle
DE19630186B4 (de) 1996-07-26 2007-11-15 BüHLER GMBH Rührwerksmühle
DE19713765A1 (de) * 1997-04-03 1998-10-08 Bayer Ag Rührwerkkugelmühle mit umlaufenden Mahlkörpern

Also Published As

Publication number Publication date
DE19839210A1 (de) 2000-03-02
EP0982074A1 (fr) 2000-03-01
US6260779B1 (en) 2001-07-17
DE59909568D1 (de) 2004-07-01
ES2221272T3 (es) 2004-12-16
DE19839210B4 (de) 2007-09-06

Similar Documents

Publication Publication Date Title
EP0700723B1 (fr) Broyeur agitateur
DE4432200C1 (de) Rührwerksmühle
EP2178643B1 (fr) Broyeur agitateur
DE2020649C3 (de) Rührwerksmühle zum Dispergieren von Festkörperteilchen in einem flüssigen Träger
EP3311922B1 (fr) Broyeur à billes à agitateur
CH367041A (de) Siebvorrichtung
DE3106062A1 (de) Ruehrwerksmuehle
EP1724022B1 (fr) Broyeur à agitateur
EP0700721B1 (fr) Broyeur agitateur
EP0913200B1 (fr) Broyeur agitateur
EP0376001A1 (fr) Broyeur agitateur avec dispositif de séparation dans une cage rotative
DE4412408A1 (de) Rührwerksmühle
EP0982074B1 (fr) Broyeur agitateur
DE19819967A1 (de) Rührwerksmühle
DE3536857C2 (de) Geschlossene Rührwerksmühle mit Siebpatronen
DE19510807C2 (de) Rührwerksmühle
DE4009092C1 (fr)
DE3131370A1 (de) Ruehrwerkskugelmuehle
DE19630186B4 (de) Rührwerksmühle
DE10110652B4 (de) Rührwerksmühle mit torusförmigem Mahlspalt
WO2021063995A1 (fr) Broyeur agitateur
EP2176001B1 (fr) Broyeur agitateur
EP1724021A1 (fr) Broyeur à agitateur
CH679461A5 (en) Stirrer type grinding mill
DE102021101527B4 (de) Rührwerksmühle

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): CH DE ES GB LI

AX Request for extension of the european patent

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

17P Request for examination filed

Effective date: 20000803

AKX Designation fees paid

Free format text: CH DE ES GB LI

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: BUEHLER AG

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): CH DE ES GB LI

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 59909568

Country of ref document: DE

Date of ref document: 20040701

Kind code of ref document: P

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: BUEHLER GMBH

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2221272

Country of ref document: ES

Kind code of ref document: T3

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: 20050301

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

Ref country code: ES

Payment date: 20090713

Year of fee payment: 11

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

Ref country code: GB

Payment date: 20090612

Year of fee payment: 11

Ref country code: CH

Payment date: 20090811

Year of fee payment: 11

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20100721

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

Ref country code: CH

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

Effective date: 20100731

Ref country code: LI

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

Effective date: 20100731

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

Ref country code: GB

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

Effective date: 20100721

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20110818

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 NON-PAYMENT OF DUE FEES

Effective date: 20100722

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

Ref country code: DE

Payment date: 20150722

Year of fee payment: 17

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59909568

Country of ref document: DE

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: 20170201