EP2407244A2 - Procédé de broyage de matière à l'aide d'un broyeur tubulaire - Google Patents

Procédé de broyage de matière à l'aide d'un broyeur tubulaire Download PDF

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Publication number
EP2407244A2
EP2407244A2 EP20110166409 EP11166409A EP2407244A2 EP 2407244 A2 EP2407244 A2 EP 2407244A2 EP 20110166409 EP20110166409 EP 20110166409 EP 11166409 A EP11166409 A EP 11166409A EP 2407244 A2 EP2407244 A2 EP 2407244A2
Authority
EP
European Patent Office
Prior art keywords
grinding
grinding chamber
frischgutkomponente
balls
chamber
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.)
Granted
Application number
EP20110166409
Other languages
German (de)
English (en)
Other versions
EP2407244A3 (fr
EP2407244B1 (fr
Inventor
Günter Guse
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
ThyssenKrupp Polysius 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 ThyssenKrupp Polysius AG filed Critical ThyssenKrupp Polysius AG
Publication of EP2407244A2 publication Critical patent/EP2407244A2/fr
Publication of EP2407244A3 publication Critical patent/EP2407244A3/fr
Application granted granted Critical
Publication of EP2407244B1 publication Critical patent/EP2407244B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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    • 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
    • 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
    • B02C17/1835—Discharging devices combined with sorting or separating of material
    • B02C17/184—Discharging devices combined with sorting or separating of material with separator arranged in discharge path of crushing zone
    • B02C17/1845—Discharging devices combined with sorting or separating of material with separator arranged in discharge path of crushing zone with return of oversize material to crushing zone

Definitions

  • the invention relates to a method for comminuting regrind by means of a tube mill having at least a first and at least one second grinding chamber and a center discharge and a separator.
  • DE-A1-43 03 987 describes a tube mill, which is characterized by a trained as a deagglomerating drum first grinding chamber and a plurality of sectional and parallel to the axis of rotation arranged further grinding chambers.
  • a center discharge is provided between the deagglomerating drum and the sectional grinding chambers, which communicates with a separator.
  • the millbase will first give up the deagglomerating drum and then passes through the center discharge into the sifter, whereby its coarse material is returned to the sectional grinding chambers.
  • This grinding process is characterized by a low total energy requirement, because in the sectioned grinding chambers at any time crushing work is guaranteed.
  • the respective "unbalance moments" are minimized in each rotational position of the mill, which also contributes to reducing the specific energy consumption.
  • the DE 29 28 939 A1 describes a grinding process for different millbases to their respective required fineness, with neither the different millbases, nor the standing in contact with the millbase gases are mixed together.
  • a rotary tube mill with two completely separate from each other grinding chambers, wherein the rotary tube mill may also be part of a circulatory sifting mill, wherein the separately discharged from the two grinding chambers Mahlgut is each supplied to a separate separator.
  • the invention is an object of the invention to provide a method for crushing regrind by means of a tube mill and a separator, the one allows more efficient grinding of at least a first and a second Frischgutkomponente, wherein the first Frischgutkomponente is easier grindable than the second and the second Frischgutkomponente is more abrasive than the first.
  • the ground material required for this purpose usually includes a relatively large proportion of relatively easily grindable limestone (first Frischgutkomponente) and a smaller part relatively difficult to grind sand (second Frischgutkomponente).
  • the limestone is usually pre-comminuted in so-called good bed roller mills and forms agglomerates.
  • the sand component such as blastfurnace slag, is already present in a fine-grained structure when introduced into tube mills and is usually abandoned together with the lime component of the first grinding chamber. Due to the lower grain size, this second component passes without significant comminution to the center discharge and is fed from there to the classifier, where it is separated out as coarse material and fed to the second grinding chamber for comminution. In the previous grinding process, the second grinding component passes through the sifter for the first time without undergoing substantial grinding. Nevertheless, it causes wear on the classifier.
  • grinding balls are used in the first and second grinding chamber, which are made of different materials.
  • metallic grinding balls in particular steel balls
  • non-metallic grinding balls in particular ceramic balls
  • the first fresh material component is in particular lime-containing material and the second fresh-material component sand is the grinding chambers.
  • first grinding ball which have at least 1.0 times the diameter of the grinding balls of the second grinding chamber.
  • weight ratio of first to second Frischgutkomponente is preferably in the range of 80-95%.
  • a system for carrying out the method according to the invention is shown schematically. It consists essentially of a tube mill 1 with a first grinding chamber 2 and a second grinding chamber 3 and a center discharge 4. Furthermore, a separator 5 is provided. Each of the two grinding chambers 2, 3 has suitable feed devices for discharging a fresh material component 6 into the first grinding chamber 2 or a second fresh material component 7 into the second grinding chamber 3.
  • the center discharge 4 is connected via a suitable conveyor 8, for example, a bucket elevator, with the classifier 5, which may be a dynamic classifier.
  • the fines 9 of the classifier 5 is withdrawn as a finished product, while the coarse material 10 is supplied together with the second Frischgutkomponente 7 of the second grinding chamber 3. Only a small proportion of the coarse material can be given up to improve the flow and level control of the first grinding chamber 2, as indicated by the dashed line.
  • the two grinding chambers are grinding balls, wherein in the first grinding chamber steel balls and in the second grinding chamber ceramic balls are used.
  • the first Frischgutkomponente 6 of the first grinding chamber 2 is abandoned, where it is crushed by contact with the steel balls and then passes through the center discharge 4 and the Föder worn 8 in the classifier.
  • the coarse material 10 of the classifier 5 is abandoned together with the second Frischgutkomponente 7 of the second grinding chamber 3.
  • the material comminuted there also passes through the center discharge 4 and the conveyor 8 into the second classifier 5, where it is separated into finished product 9 and coarse material 10.
  • the first fresh material component 6 is lime-containing material and the second fresh-material component 7
  • the more difficult grindable and more abrasive sand thus comes into contact only with the ceramic balls located in the second grinding chamber 3.
  • the main crushing takes place, which happens primarily as Reibzerkleintation.
  • the abrasion of ceramic balls consists essentially of silicon and contains no iron or chromium, which would be detrimental to the production of white cement.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
EP11166409.0A 2010-06-16 2011-05-17 Procédé de broyage de matière à l'aide d'un broyeur tubulaire Not-in-force EP2407244B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201010017394 DE102010017394A1 (de) 2010-06-16 2010-06-16 Verfahren zur Zerkleinerung von Mahlgut mit Hilfe einer Rohrmühle

Publications (3)

Publication Number Publication Date
EP2407244A2 true EP2407244A2 (fr) 2012-01-18
EP2407244A3 EP2407244A3 (fr) 2014-12-24
EP2407244B1 EP2407244B1 (fr) 2015-07-15

Family

ID=44650466

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11166409.0A Not-in-force EP2407244B1 (fr) 2010-06-16 2011-05-17 Procédé de broyage de matière à l'aide d'un broyeur tubulaire

Country Status (5)

Country Link
EP (1) EP2407244B1 (fr)
CN (1) CN102284323B (fr)
DE (1) DE102010017394A1 (fr)
DK (1) DK2407244T3 (fr)
ES (1) ES2547335T3 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102941142B (zh) * 2012-10-17 2014-12-10 武汉利之达科技有限公司 一种变筒径中卸烘干磨机
CN104096631B (zh) * 2013-04-12 2016-08-03 宝山钢铁股份有限公司 棒磨机搅棒控制方法
CN104941738B (zh) * 2015-06-16 2017-05-03 张志村 一种研磨效率高、耗电低的通用水泥球磨机装配方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2928939A1 (de) 1979-07-18 1981-02-12 Kloeckner Humboldt Deutz Ag Muehle
DE4303987A1 (de) 1993-02-11 1994-08-18 Kloeckner Humboldt Deutz Ag Mahlverfahren und zugehörige Mahlanlage

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1013553B (zh) * 1989-09-25 1991-08-21 国家建筑材料工业局合肥水泥研究设计院 管磨机
CN2096412U (zh) * 1991-06-28 1992-02-19 柳长松 节能管式磨机
EP0965387B1 (fr) * 1998-06-17 2006-08-23 Ömag-Montananlagenbau GmbH Broyeur pour le traitement respectivement le broyage de matières solides
US7073737B2 (en) * 2001-11-29 2006-07-11 Polysius Ag Tube grinder and method for comminuting lumpy grinding stock
DE102004045959A1 (de) * 2004-09-22 2006-03-23 Polysius Ag Anlage und Verfahren zur Zerkleinerung von Mahlgut
CN2761272Y (zh) * 2005-01-06 2006-03-01 合肥水泥研究设计院 开流矿渣微粉管磨机

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2928939A1 (de) 1979-07-18 1981-02-12 Kloeckner Humboldt Deutz Ag Muehle
DE4303987A1 (de) 1993-02-11 1994-08-18 Kloeckner Humboldt Deutz Ag Mahlverfahren und zugehörige Mahlanlage

Also Published As

Publication number Publication date
EP2407244A3 (fr) 2014-12-24
DK2407244T3 (en) 2015-10-12
DE102010017394A1 (de) 2011-12-22
CN102284323A (zh) 2011-12-21
EP2407244B1 (fr) 2015-07-15
ES2547335T3 (es) 2015-10-05
CN102284323B (zh) 2014-11-26

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