EP1850962B1 - Systeme de broyage et procede pour broyer de la matiere - Google Patents

Systeme de broyage et procede pour broyer de la matiere Download PDF

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Publication number
EP1850962B1
EP1850962B1 EP06706945A EP06706945A EP1850962B1 EP 1850962 B1 EP1850962 B1 EP 1850962B1 EP 06706945 A EP06706945 A EP 06706945A EP 06706945 A EP06706945 A EP 06706945A EP 1850962 B1 EP1850962 B1 EP 1850962B1
Authority
EP
European Patent Office
Prior art keywords
grinding
classifier
circuit
fine
chambers
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.)
Not-in-force
Application number
EP06706945A
Other languages
German (de)
English (en)
Other versions
EP1850962A1 (fr
Inventor
Ludger Schulte
Franz-Josef Zurhove
Donald A. Longhurst
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 Industrial Solutions AG
Original Assignee
Polysius AG
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Filing date
Publication date
Application filed by Polysius AG filed Critical Polysius AG
Publication of EP1850962A1 publication Critical patent/EP1850962A1/fr
Application granted granted Critical
Publication of EP1850962B1 publication Critical patent/EP1850962B1/fr
Not-in-force 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
    • B02C21/00—Disintegrating plant with or without drying of the material
    • B02C21/002—Disintegrating plant with or without drying of the material using a combination of a roller mill and a drum mill
    • 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
    • B02C17/18—Details
    • B02C17/183—Feeding or discharging devices

Definitions

  • the invention relates to a grinding plant with at least one coarse grinding circuit and at least one Feinmahlnik.
  • the throughput of such grinding plants is usually limited by the tube mill.
  • technical boundary conditions must be taken into account.
  • the cross-sectional load of the ball bed may not exceed 90 t / (m 2 h).
  • the regrind would run over the ball tow.
  • the load capacity would be even lower because the throughput is volumetric and the bulk density decreases.
  • a crusherumlauf of at least 1.8 to 2.0 strive to achieve sufficiently low residue levels in the finished product.
  • the diameter of the mill can not be increased arbitrarily, since the number of spherical layers in fine-grained Combi mills becomes too large. So there is a slip between each layer, so that hardly any relative movement of the balls takes place in the inner core of the ball bed. In this area, therefore, no grinding takes place.
  • the ball mill is used for effective deagglomeration of the goods of a good bed roller mill.
  • the invention is an object of the invention to provide a grinding plant, which is characterized by very high throughput. According to the invention, this object is solved by the features of claim 1.
  • the grinding plant according to the invention consists essentially of a Grobmahl Vietnamese and at least one Feinmahl Vietnamese, the Grobmahl Vietnamese has a classifier and a Gutbettwalzenmühle and passes the pre-shredded Good the good bed roller mill in the classifier, the coarse material in turn the Gutbettwalzenmühle and the fine material is fed to the fine grinding circuit.
  • the Feinmahl Vietnamese has a tube mill with at least two grinding chambers and a Mittenaustrag and a divider, wherein at least part of the ground material of Grobmahlnikes divided in the divider and fed to the two grinding chambers and the ground material is discharged from the two grinding chambers together on the Mittenaustrag.
  • the ratio of length to diameter of each grinding chamber (20a, 20b) is ⁇ 2.2.
  • a classifier is also provided in the fine grinding circuit, the classifier being supplied with the material coming from the roughing cycle and / or the material discharged from the tube mill, the coarse grinding material of the classifier being diverted and the fines being discharged.
  • grinding balls with a diameter of ⁇ 25 mm are provided in the grinding chambers of the tube mill. Balls of this size show greater efficiency than larger balls. The use of these balls is only possible through the sighting in the rough grinding circle.
  • Fig. 1 Milling plant shown essentially consists of a Grobmahl Vietnamese 1 and a Feinmahl Vietnamese 2.
  • the Grobmahl Vietnamese 1 has a classifier 10 and a Gutbettwalzenmühle 11.
  • Frischgut 3 or 3 ' is abandoned either on the classifier 10 or directly the Goodbettwalzenmühle 11.
  • the pre-shredded material 4 passes, possibly together with fresh material 3, into the classifier 10, the coarse material 5 of which in turn is fed to the fine-bed roller mill 11.
  • the fine material 6 of the classifier 10 enters the fine grinding circuit 2.
  • the fine grinding circuit 2 has a tube mill 20 with two grinding chamber 20 a, 20 b and a center discharge 20 c and a divider 21. Furthermore, a classifier 22 and a further divider 23 are provided.
  • the product stream 6 coming from the roughing cycle is divided in the divider 21 into two equal partial streams 6a, 6b, which are fed to the two grinding chambers 20a, 20b.
  • the millbase 7 discharged from the tube mill 20 is classified in the classifier 22 into coarse material 8 and fine material 9. While the fines 9 is discharged, the coarse material 8 of the classifier 22 passes into the further divider 23, which divides the coarse material into two equal partial streams 8a, 8b, which are supplied with the partial streams 6a and 6b of the splitter 21 to the grinding chambers 20a and 20b become.
  • the two grinding chambers 20a and 20b are formed identically, so that the dividers 21 and 23 are adjusted so that the grinding material 6, 8 supplied to the dividers is fed in equal parts to the two grinding chambers.
  • Fig. 3 shows a variant of the Feinmahlnikes, in which the divider 21 according to Fig. 1 has been omitted.
  • the grinding stock 6 coming from the rough grinding cycle is either fed to the classifier 22 and / or together with the coarse material 8 of the classifier to the divider 23 together with the grinding stock 7 discharged from the tube mill.
  • the divider 23 can be adjusted again so that it produces two equal large subsets, which are fed to the two grinding chambers 20a, 20b of the tube mill.
  • the grinding chambers of the tube mill 20 are provided with grinding balls having a diameter of ⁇ 25 mm.
  • the ratio of length to diameter of each individual grinding chamber 20a, 20b is less than or equal to 2.2. In the experiments on which the invention is based, it has been found that a Ratio of length to diameter of ⁇ 2.0 or even ⁇ 1.7 is particularly efficient.
  • the tube mill 20 described above enables a high throughput and is compared to two separate mills to operate much cheaper and more energy efficient.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Disintegrating Or Milling (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Paints Or Removers (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Claims (7)

  1. Installation de broyage comprenant au moins un circuit de broyage grossier (1) et au moins un circuit de broyage fin (2), le circuit de broyage grossier présentant un classificateur (10) et un broyeur à cylindres à lit de matière (11), et la matière, préalablement broyée, du broyeur à cylindres à lit de matière, étant conduite dans le classificateur, duquel la matière grossière (5) est conduit, à son tour, au broyeur à cylindres à lit de matière, tandis que la matière fine est amenée, au moins en majeure partie, dans le circuit de broyage fin, sachant que le circuit de broyage fin présente un tube broyeur (20), qui est doté d'au moins trois chambres de broyage (20a, 20b) et d'une sortie centrale (20c), et un séparateur (21), et sachant qu'au moins une partie de la matière broyée du circuit de broyage grossier est séparée dans le séparateur et conduite aux deux chambres de broyage, et que les matières broyées sont évacuées, en commun, hors des deux chambres de broyage, par la sortie centrale, caractérisée en ce que le rapport entre la longueur et le diamètre de chaque chambre de broyage (20a, 20b) est de ≤ 2,2.
  2. Installation de broyage selon la revendication 1, caractérisée en ce que les deux chambres de broyage (20a, 20b) sont de conception identique et que le séparateur (21) est réglé de sorte que la matière à broyer (6), à destination du séparateur, soit amenée en parties égales dans les deux chambres de broyage.
  3. Installation de broyage selon la revendication 1, caractérisée en ce que, dans le circuit de broyage fin, est prévu un classificateur (22), auquel est conduite au moins la totalité de la matière broyée (7) en provenance de la sortie centrale du tube broyeur.
  4. Installation de broyage selon la revendication 3, caractérisée en ce que, dans le circuit de broyage fin, est prévu un classificateur (22), auquel sont conduites au moins la totalité de la matière broyée (7), en provenance de la sortie centrale du tube broyeur, et au moins une partie de la matière broyée (6) en provenance du circuit de broyage grossier.
  5. Installation de broyage selon la revendication 1, caractérisée en ce que, dans le circuit de broyage fin, est prévu un classificateur (22), auquel sont conduites au moins la totalité de la matière broyée (7), en provenance de la sortie centrale du tube broyeur, et, le cas échéant, la matière broyée (6) en provenance du circuit de broyage grossier, la matière grossière (8) étant conduite du classificateur à un séparateur (23), et la matière fine (9) étant évacuée.
  6. Installation de broyage selon la revendication 1, caractérisée en ce que les deux chambres de broyage (20a, 20b) sont équipées de corps de broyage.
  7. Installation de broyage selon la revendication 1, caractérisée en ce que, dans les chambres de broyage (20a, 20b) du tube broyeur (20), sont prévues des billes de broyage, dont le diamètre est de ≤ 25 mm.
EP06706945A 2005-02-16 2006-02-14 Systeme de broyage et procede pour broyer de la matiere Not-in-force EP1850962B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005007254A DE102005007254A1 (de) 2005-02-16 2005-02-16 Mahlanlage und Vefahren zum Mahlen von Mahlgut
PCT/EP2006/001339 WO2006087167A1 (fr) 2005-02-16 2006-02-14 Systeme de broyage et procede pour broyer de la matiere

Publications (2)

Publication Number Publication Date
EP1850962A1 EP1850962A1 (fr) 2007-11-07
EP1850962B1 true EP1850962B1 (fr) 2011-01-19

Family

ID=36051454

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06706945A Not-in-force EP1850962B1 (fr) 2005-02-16 2006-02-14 Systeme de broyage et procede pour broyer de la matiere

Country Status (8)

Country Link
US (1) US7971815B2 (fr)
EP (1) EP1850962B1 (fr)
CN (1) CN101160175A (fr)
AT (1) ATE495820T1 (fr)
DE (2) DE102005007254A1 (fr)
DK (1) DK1850962T3 (fr)
RU (1) RU2007134351A (fr)
WO (1) WO2006087167A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CL2009001886A1 (es) * 2009-09-23 2010-04-09 Mesic Hamza Delic Conjunto de molinos pulverizadores para mineral conectados entre si donde cada uno comprende una carcasa estatica y paletas movidas por al menos un motor y el conjunto incluye al menos dos pulverizadores con una camara de carga teniendo una tolva para la camara de carga para alimentar un unico espacio central comun.
DE202011106419U1 (de) 2010-12-15 2012-01-10 Elena Vladimirovna Artemieva Anlage zum Mahlen von Materialien
DE102013100997A1 (de) * 2013-01-31 2014-07-31 Thyssenkrupp Resource Technologies Gmbh 1;2Verfahren und Anlage zur Mahlung von stückigem Ausgangsmaterial
DE102014015549A1 (de) * 2014-10-22 2016-04-28 Thyssenkrupp Ag Mahlanlage zum Zerkleinern von Mahlgut sowie Verfahren zum Zerkleinern von Mahlgut
CN109847888B (zh) * 2017-11-30 2021-01-22 曾金穗 粉体干式微细化装置
CN110721776B (zh) * 2019-12-17 2020-05-19 广东欧文莱陶瓷有限公司 一种二次球磨方法
DE102020204780A1 (de) 2020-04-15 2021-10-21 Elena Vladimirovna Artemieva Vorrichtung und Verfahren zum Zerkleinern von festen Materialien

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR562235A (fr) * 1922-04-08 1923-11-07 Ch Candlot Ets Perfectionnement aux broyeurs
GB937419A (en) * 1960-08-29 1963-09-18 Smidth & Co As F L Improvements relating to the wet grinding of mineral materials
GB1312553A (en) * 1971-01-15 1973-04-04 Smidth & Co As F L Grinding mills
DE3504584A1 (de) * 1985-02-11 1986-08-21 Krupp Polysius Ag, 4720 Beckum Anlage zur zerkleinerung von mahlgut
DD298600A5 (de) * 1989-09-15 1992-03-05 Forschungsinstitut Fuer Aufbereitung,De Rohrkugelmuehlen zur effektiven desagglomeration und zerkleinerung von hochdruckzerkleinertem sproeden material
DE4023264A1 (de) 1990-07-21 1992-01-23 Kaercher Gmbh & Co Alfred Rohrkupplung fuer zwei metallische rohrstuecke
ES2064245B1 (es) * 1991-12-06 1997-10-16 Standart 90 Metodo y aparato polivalente para la molienda de material solido.
DE4303987A1 (de) * 1993-02-11 1994-08-18 Kloeckner Humboldt Deutz Ag Mahlverfahren und zugehörige Mahlanlage
JP2579885B2 (ja) * 1993-10-15 1997-02-12 川崎重工業株式会社 粉粒体原料の粉砕方法と粉砕装置および分級機
DE19514971A1 (de) 1994-04-27 1995-11-02 Heinz Jaeger Verfahren und Anlage zur energiesparenden Herstellung eines Feingutes
DE19512509B4 (de) * 1995-04-04 2009-07-30 Polysius Ag Verfahren zur Zerkleinerung von Erzmaterial
DE50212715D1 (de) * 2001-11-29 2008-10-09 Polysius Ag Rohrmühle sowie verfahren zum zerkleinern von stückigem mahlgut

Also Published As

Publication number Publication date
WO2006087167A1 (fr) 2006-08-24
DE102005007254A1 (de) 2006-08-17
DK1850962T3 (da) 2011-05-09
DE102005007254A9 (de) 2007-03-08
CN101160175A (zh) 2008-04-09
ATE495820T1 (de) 2011-02-15
EP1850962A1 (fr) 2007-11-07
US7971815B2 (en) 2011-07-05
US20090020636A1 (en) 2009-01-22
DE502006008763D1 (de) 2011-03-03
RU2007134351A (ru) 2009-03-27

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