EP0447669A1 - Procédé et dispositif de broyage en deux étapes de matériaux friables - Google Patents

Procédé et dispositif de broyage en deux étapes de matériaux friables Download PDF

Info

Publication number
EP0447669A1
EP0447669A1 EP90125239A EP90125239A EP0447669A1 EP 0447669 A1 EP0447669 A1 EP 0447669A1 EP 90125239 A EP90125239 A EP 90125239A EP 90125239 A EP90125239 A EP 90125239A EP 0447669 A1 EP0447669 A1 EP 0447669A1
Authority
EP
European Patent Office
Prior art keywords
mill
grinding
grinding stage
classifier
stage
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
EP90125239A
Other languages
German (de)
English (en)
Other versions
EP0447669B1 (fr
Inventor
Gotthardt Dipl.-Ing. Blasczyk
Norbert Dipl.-Ing. Patzelt
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
Krupp 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6400582&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0447669(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Krupp Polysius AG filed Critical Krupp Polysius AG
Publication of EP0447669A1 publication Critical patent/EP0447669A1/fr
Application granted granted Critical
Publication of EP0447669B1 publication Critical patent/EP0447669B1/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
    • 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
    • B02C21/005—Disintegrating plant with or without drying of the material using a combination of a roller mill and a drum mill the roller mill having cooperating rollers
    • 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

Definitions

  • the invention relates to a method for the two-stage comminution of brittle regrind (according to the preamble of claim 1) and a grinding plant for the two-stage comminution of brittle regrind (according to the preamble of claim 8), in particular cement materials to be crushed as brittle regrind.
  • a method and a plant are known, according to which a material bed roller mill with two rollers is used as the first mill for the pre-comminution in a first stage, this roller mill being assigned a metering belt weigher as a feed device for fresh material.
  • the material pre-comminuted in this roller mill is fed to the mill in a second grinding stage together with the amount of return material coming from a classifier of this second grinding stage (separated coarse material or separated semolina).
  • the regulation for the throughput is carried out in such a way that when the throughput in the second grinding stage operating as a recirculating grinding system changes, for example due to a changed quantity of finished goods, there is no control intervention in the control device of this second grinding stage, while the respective throughput quantity change occurs second grinding stage via the metering belt scale assigned to the roller mill (first grinding stage) in the sense of a change in the speed of the rollers of this roller mill, in that a control signal coming from the second grinding stage first for an adapted control intervention of the metering belt scale and accordingly, a further control signal is then processed for a corresponding adaptation of the speed control of the rolls of this roll mill.
  • the invention has for its object to improve a method in the preamble of claim 1 and a grinding plant of the type required in the preamble of claim 8 in such a way that with a particularly sensitive adjustment of the material to be fed to the second mill of the second grinding stage, a relatively high Throughput capacity of this mill is achieved and a relatively simple and reliable adaptability of the throughput capacity of the first grinding stage to that of the second grinding stage is ensured.
  • the first grinding stage with the first mill and an associated air classifier is first of all designed in the form of a circulation grinding system. Since this means that the comminuted material coming from the first mill is first classified in the associated first wind sifter in coarse material (semolina), which is returned to the first mill as return material quantity, and in fine material that is classified as fresh material quantity (second fresh material quantity) in the second mill of the second grinding stage. supplied, can be kept away from this second mill, which serves for the fine comminution of the material, too coarse regrind so that this second mill can be fed with a relatively narrow grain size distribution in the feed material, which in turn leads to a more uniform fine comminution in this second mill and one higher throughput in this second grinding stage.
  • coarse material coarse material
  • second fresh material quantity fresh material quantity
  • the total supply of ground material is kept constant in the two grinding stages by assigned control devices.
  • the fine material of the air classifier of the first grinding stage forms the proportion of fresh material for the second mill of the second grinding stage, with changing the quantity of finished product of this second grinding stage then a constant regulation of the quantity of ground material feed to the second mill can take place in that the air classifier the first grinding stage in the sense of a quantity of fresh material or quantity of feed material required in the second mill.
  • this can be done in a simple, quick and reliable manner in that the wind sifter of the first grinding plant has a visual fineness adjustment device with a drive which is infinitely variable in its speed.
  • the first grinding stage and the second grinding stage operate in the manner of a circulation grinding system, each with a mill and a classifier in accordance with the characterizing part of claim 2.
  • a spreader or basket air classifier is particularly advantageous.
  • a basket air classifier is used as the air classifier for each grinding stage, in which a comparatively simple, rapid setting of the visual fineness for the fine material portion can be achieved by means of a stepless adjustability of the drive for the rotating basket within the classifying space.
  • the embodiments of the grinding system described below with reference to the drawing are used in particular for the two-stage comminution of brittle ground material, in particular of cement materials, such as cement clinker, slag and the like.
  • the entire grinding plant contains, as essential plant parts, a first grinding stage designed for the preliminary comminution of regrind in the form of a recirculating grinding system, with a first mill 1 and a first air classifier 2, as well as a downstream of the first grinding stage, intended for the fine comminution of regrind, second grinding stage, likewise in the form of a circulation grinding system, with a second mill 3 and a second air classifier 4;
  • a plurality of storage bunkers 5, 6, 7 can be provided for different regrind components, with metering belt scales 5a, 6a, 7a or other metering devices being arranged under each storage bunker 5, 6, 7 in a manner known per se, which feeders 8 are controllable in terms of their conveying capacity , for example a conveyor belt, work for fresh material to the first mill 1.
  • the wind sifters used in the first grinding stage and in the second grinding stage can be designed in any suitable, known embodiment which offers a setting option for the visual fineness, ie for the fineness of the fine material quantity, it is preferred, at least the wind sifter 2 to form the first grinding stage as a centrifugal air classifier, in particular as a basket air classifier in a known embodiment.
  • the first air classifier 2 of the first grinding stage and the second are particularly preferred Air classifier 4 of the second grinding stage is designed as a basket air classifier of the same type.
  • each wind classifier 2, 4 has, in a manner known per se, a rotating basket 2a or 4a, which is only indicated by dashed lines, in the region of the inner visual space.
  • This viewing basket 2a or 4a essentially forms a viewing fineness adjustment device which can be adjusted in its speed via a drive motor 9 or 10, which is infinitely variable in its speed, and thus in the desired viewing fineness of the classifier.
  • the first air classifier 2 in the first grinding stage has a coarse material or semolina outlet 2b and at least one fine material outlet 2c, preferably a plurality of such fine material outlets 2c. These fine material outlets feed a connecting conveyor 11 of a connecting device which conveys the fine material coming from this first sifter 2 to the good inlet 3a of the second mill 3 as a quantity of fresh material (arrow 12).
  • the amount of coarse material (semolina) flowing out from this first wind sifter 2 is - according to arrow 13 - initially recorded in terms of quantity as the first amount of returned goods by a quantity measuring device designed, for example, as a belt scale 14 and then fed to a regrind feed chute 15 directly above the feed point of the first mill 1.
  • the filling capacity of this regrind feed shaft 15 can be controlled with regard to the total feed quantity of this first mill 1 via suitable fill level monitoring devices, for which purpose in the present case pressure load cells 16 are provided, on which the regrind feed shaft 15 is supported in a manner known per se.
  • This regrind feed chute 15 is further - according to arrow 17 - fed through the feed device 8 in a controllable or metered manner as the first fresh material quantity via the feed device 8.
  • the material pre-comminuted in the first mill 1 of the first grinding stage (arrow 18) is preferably fed to the first air classifier 2 with the aid of a lifting device, for example an elevator 19.
  • the second mill 3 designed for the fine comminution also gives the finely comminuted material - according to the arrows 20 - to the second air classifier 4 of this second grinding stage via a lifting conveyor, preferably an elevator 21. While the fine material flowing out of the fine material outlets 4c of this second air classifier 4 according to arrows 22 is discharged as finished product from the grinding system, the amount of coarse material flowing out of the coarse material outlet (semolina outlet) 4b of this second air classifier 4 becomes a second return material quantity - according to arrows 23 - for the material inlet 3a of the second mill 3 returned.
  • a suitable quantity measuring device which in the present example is a suitable balance 24 can.
  • the second grinding stage is now associated with a known electrical or electronic control device in such a way that the total feed quantity that can be fed to the second mill 3, ie the sum of the quantity of fresh material (Arrow 12) and the second quantity of return goods (arrow 23) can be regulated constantly, for which purpose the second quantity of fresh goods (arrow 12) conveyed by the first classifier 2 via the connection conveyor 11 as a function of changes in the quantity of returned goods and finished goods (arrows 22 and 23) from the second classifier 4 is regulated.
  • this first control device of the second grinding stage is connected to the drive motor 9, which is variable in its speed, of the viewing basket 2a which determines the visual fineness, by a first controller (F GK ) 25 such that in the case of the changes mentioned in the quantities of finished goods and returned goods (22, 23) of the second grinding stage, the amount of fine material (arrow 12) from the first classifier 2 can be changed via its basket speed in the sense of constant regulation of the total quantity of feed material of this second mill 3.
  • a second control device which also works electrically or electronically, is assigned to the first grinding stage in a design known per se.
  • the assignment and design of this second control device is such that when the first fine material quantity (12) and the first return material quantity (13) of the associated first air classifier 2 change, the first fresh material quantity (17) is fed via its feed device 8 in the sense of constant control of the first mill 1 total amount of feed is changeable.
  • this second control device contains, in addition to the usual setting and control devices, a number of controllers, one of which is a controller F GP for quantity measurement signals from the belt weigher 14 (for detecting the first quantity of returned goods 13), a controller F F for detecting the quantity signals from the controller F GP and the Quantity or weight signals from the bunker dosing scales 5a, 6a, 7a and another controller L for the detection of the total quantity of feed material in the grinding material feed shaft 15 is provided by the pressure load cells 16.
  • the associated connections are indicated by dashed lines.
  • the first mill 1 for pre-comminution in the first grinding stage and the second mill 3 for fine comminution in the second grinding stage can be provided per se in any suitable embodiment.
  • the first mill 1 is formed by a roller mill known per se with two rollers 1a, 1b, at least one roller of which can be driven in a manner known per se is and between them form a grinding gap 1c for a material bed size reduction of the material to be fed.
  • the second grinding stage it is preferred to provide a drum or tube mill as the second mill 3, in which the material to be ground is finely comminuted under the action of grinding media, and an embodiment known per se as a ball mill is particularly preferred.
  • the amount of fines (arrow 12) to be fed to this second mill 3 as a fresh material quantity must be reduced accordingly (by a corresponding change in the speed of the viewing basket 2a), so that the second total feed quantity to the second can be obtained via the first control device Mill 3 can be regulated constantly.
  • FIG. 2 A second exemplary embodiment or an embodiment variant of the grinding plant described above with reference to FIG. 1 is explained with the aid of the partial flow diagram according to FIG. 2, for which purpose only the parts of the plant required for this, and in particular the connection area, especially from the first grinding step to the second grinding step, are illustrated and be explained.
  • Plant parts executed in the first example are designated by the same reference numerals as in the first example (FIG. 1), so that these plant parts do not have to be explained again individually.
  • this connecting device for the supply of the fine material coming from the first sifter 2 of the first grinding stage is mainly formed by a connecting conveyor
  • this connecting device in this second exemplary embodiment contains ( Fig. 2) in addition to the connection conveyor 11 '(as a fine material conveyor) still an intermediate silo 30, which is arranged between the connection conveyor 11' and the material inlet 3a of the second mill 3 of the fine grinding stage and is controllable in its intermediate storage quantity.
  • the intermediate silo 30 can be equipped with fill level control devices known per se or - as is preferred in this example - can be arranged on pressure measuring cells 31 in order to be able to control the intermediate storage quantities in a suitable manner.
  • the outlet 30a of this intermediate silo 30 is assigned an outlet metering device 32 in a design known per se. Only from this outlet metering device 32 is the fine material coming from the first classifier 2 (arrow 12) as a second quantity of fresh material and with variable control (metering) fed to the product inlet 3a of the second mill 3, together with that from the second classifier 4 second amount of returned material returned in the second grinding stage (arrows 23); if necessary, a further lifting lever can be arranged between the outlet metering element 32 and the material inlet 3a of the second mill 3, as is indicated by dash-dotted lines at 33.
  • the first control device for the second grinding stage is then modified in such a way that a first controller (L) 34 in the control connection (only indicated by dashed lines) between the pressure transducers 31 of the intermediate silo 30 and the speed which can be changed Drive motor 9 for the viewing basket 2a of the first air classifier 2 and a second controller (R) 35 of this first regulating device is arranged in a control connection - likewise indicated only by dashed lines - between the return material quantity measuring device designed as a scale 24 and the outlet metering element 32.
  • a first controller (L) 34 in the control connection (only indicated by dashed lines) between the pressure transducers 31 of the intermediate silo 30 and the speed which can be changed Drive motor 9 for the viewing basket 2a of the first air classifier 2
  • a second controller (R) 35 of this first regulating device is arranged in a control connection - likewise indicated only by dashed lines - between the return material quantity measuring device designed as a scale 24 and the outlet metering element 32.
  • the total quantity of fresh material required for constant control of the total quantity of feed to the second mill 3 (quantity of fine material 12 from the first sifter 2) is regulated in that the viewing basket 2a is adjusted accordingly in terms of its speed and thus this first sifter 2 in its visual fineness becomes.
  • each grinding stage follows Type of a circulation grinding system, each with a mill and an associated wind sifter
  • this second mill is preferably designed as a tube mill, ball mill or the like, there is the possibility here of adjusting the air flow to be passed through this second mill so that the sufficiently finely comminuted material discharged from it with this mill can be removed as a finished product.
  • the fresh material brought in from the classifier of the first grinding stage to the second mill of the second grinding stage forms the total feed quantity of this second mill
  • the constant control then depending on the finely comminuted material discharged from this second mill as finished product quantity with the aid of the visual fineness setting device of the air classifier of the first grinding stage is constantly regulated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Disintegrating Or Milling (AREA)
  • Crushing And Grinding (AREA)
EP90125239A 1990-02-20 1990-12-21 Procédé et dispositif de broyage en deux étapes de matériaux friables Expired - Lifetime EP0447669B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4005323A DE4005323A1 (de) 1990-02-20 1990-02-20 Verfahren und mahlanlage zur zweistufigen zerkleinerung von sproedem mahlgut
DE4005323 1990-02-20

Publications (2)

Publication Number Publication Date
EP0447669A1 true EP0447669A1 (fr) 1991-09-25
EP0447669B1 EP0447669B1 (fr) 1993-06-23

Family

ID=6400582

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90125239A Expired - Lifetime EP0447669B1 (fr) 1990-02-20 1990-12-21 Procédé et dispositif de broyage en deux étapes de matériaux friables

Country Status (5)

Country Link
US (1) US5110056A (fr)
EP (1) EP0447669B1 (fr)
DE (2) DE4005323A1 (fr)
ES (1) ES2043233T3 (fr)
ZA (1) ZA91799B (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0629448A2 (fr) * 1993-06-17 1994-12-21 Krupp Polysius Ag Installation et procédé de broyage et de tamisage de matériau friable
EP0650763A1 (fr) * 1993-10-30 1995-05-03 Klöckner-Humboldt-Deutz Aktiengesellschaft Installation de broyage en circuit
DE102006017510A1 (de) * 2006-04-13 2007-10-18 Khd Humboldt Wedag Gmbh Kreislaufmahlanlage
CN102008989A (zh) * 2010-12-15 2011-04-13 许相柱 节能球磨筛选联合机
CN107715979A (zh) * 2017-11-14 2018-02-23 郑州格瑞塔电子信息技术有限公司 建筑用水泥生料循环粉碎筛选导出装置

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH683155A5 (de) * 1991-07-03 1994-01-31 R & D Carbon Ltd Verfahren zur Aufbereitung eines Trockenstoffes zur Herstellung von Elektroden.
DE4137199A1 (de) * 1991-11-12 1993-05-13 Krupp Polysius Ag Verfahren zur regelung einer umlauf-mahlanlage
JP3094684B2 (ja) * 1992-09-04 2000-10-03 味の素株式会社 ジペプチド甘味料顆粒の製造法
DE4400796A1 (de) * 1994-01-13 1995-07-20 Krupp Polysius Ag Verfahren zur Gewinnung von Edelmetallen
DE4443588A1 (de) * 1994-12-07 1996-06-13 Krupp Polysius Ag Verfahren und Anlage zur gemeinsamen Mahlung von wenigstens zwei unterschiedlich mahlbaren Stoffen
US6149014A (en) * 1997-12-04 2000-11-21 Eriez Manufacturing Co. Mill magnet separator and method for separating
SE527086C2 (sv) * 2004-05-13 2005-12-20 Procedo Entpr Etablissement Processsystem för framställning av en komposit av cementitmaterial med reducerade koldioxidemissioner
DK2125229T4 (da) † 2007-01-10 2021-02-22 Koeppern & Co Kg Maschf Luftseparator til formindskede materialer
US7927417B2 (en) 2008-02-04 2011-04-19 Capitol Aggregates, Ltd. Cementitious composition and apparatus and method for manufacturing the same
PL2980036T3 (pl) 2014-07-28 2018-07-31 Heidelbergcement Ag Sposób mielenia klinkieru cementowego
CN106622601B (zh) * 2017-02-22 2019-05-24 江苏新鹏重型机电制造有限公司 水泥生产线用细粉分级收集装置
DE102017115856A1 (de) * 2017-07-14 2019-01-17 Maschinenfabrik Köppern Gmbh & Co. Kg Walzenpresse und Verfahren zur Bestimmung des Füllstandes
CN113117857B (zh) * 2019-12-31 2022-03-08 同济大学 一种连续级配再生骨料智能破碎集成系统

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE566774A (fr) *
DE2651548A1 (de) * 1975-11-12 1977-06-23 Perlmooser Zementwerke Ag Verfahren und vorrichtung zum mahlen und sichten eines gutes
DE3012653A1 (de) * 1980-04-01 1981-10-08 Klöckner-Humboldt-Deutz AG, 5000 Köln Verfahren und vorrichtung zur anpassung der von einer mahltrocknungsanlage insbesondere fuer brennbares gut erzeugten menge von fertiggut an die entnahmemenge eines verbrauchers
DE3407535A1 (de) * 1984-03-01 1985-09-05 Klöckner-Humboldt-Deutz AG, 5000 Köln Einrichtung zur selbsttaetigen regelung der durchsatzleistung bei der zweistufigen zerkleinerung sproeder materialien

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1757093C3 (de) * 1968-03-29 1978-10-19 Alpine Ag, 8900 Augsburg Walzenmühle zur Feinmahlung
DE2032736C3 (de) * 1970-07-02 1975-07-24 Polysius Ag, 4723 Neubeckum Verfahren zum Vermählen von grobkörnigen Mineralien
DE2620461A1 (de) * 1976-05-08 1977-11-24 Kloeckner Humboldt Deutz Ag Mahltrocknungsanlage
DE2741510C2 (de) * 1977-09-15 1988-09-08 Brown, Boveri & Cie Ag, 6800 Mannheim Regeleinrichtung für eine Sichterumlaufmahlanlage
DE3302176A1 (de) * 1983-01-24 1984-07-26 Klöckner-Humboldt-Deutz AG, 5000 Köln Verfahren und anlage zur kontinuierlichen druckzerkleinerung sproeden mahlgutes
DE3320264A1 (de) * 1983-06-04 1984-12-06 Johann 5060 Bergisch-Gladbach Jerga Rohkohle-zerkleinerungssystem und vorrichtung zur durchfuehrung des verfahrens
DE3506486A1 (de) * 1985-02-23 1986-08-28 Klöckner-Humboldt-Deutz AG, 5000 Köln Einrichtung zur zerkleinerung und mahlung sproeden mahlgutes wie zum beispiel zementklinker, erz, kohle oder dergleichen
DE3518543C3 (de) * 1985-05-23 1996-12-19 Kloeckner Humboldt Deutz Ag Verfahren und Einrichtung zur Zerkleinerung bzw. Mahlung spröden Mahlgutes
EP0220681B1 (fr) * 1985-10-29 1991-05-29 Klöckner-Humboldt-Deutz Aktiengesellschaft Installation pour fractionner et broyer des matériaux fragiles et mouillés
DE3609229A1 (de) * 1986-03-19 1987-09-24 Krupp Polysius Ag Verfahren und anlage zur zerkleinerung von sproedem mahlgut
DE3644341A1 (de) * 1986-12-23 1988-07-07 Krupp Polysius Ag Verfahren und anlage zur zweistufigen zerkleinerung von sproedem mahlgut
DE3644342A1 (de) * 1986-12-23 1988-07-07 Krupp Polysius Ag Verfahren und anlage zur zweistufigen zerkleinerung von sproedem mahlgut
FR2634402B1 (fr) * 1988-07-22 1992-04-03 Cle Procede de broyage et compactage d'une matiere minerale quelconque et installation pour la mise en oeuvre de ce procede

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE566774A (fr) *
DE2651548A1 (de) * 1975-11-12 1977-06-23 Perlmooser Zementwerke Ag Verfahren und vorrichtung zum mahlen und sichten eines gutes
DE3012653A1 (de) * 1980-04-01 1981-10-08 Klöckner-Humboldt-Deutz AG, 5000 Köln Verfahren und vorrichtung zur anpassung der von einer mahltrocknungsanlage insbesondere fuer brennbares gut erzeugten menge von fertiggut an die entnahmemenge eines verbrauchers
DE3407535A1 (de) * 1984-03-01 1985-09-05 Klöckner-Humboldt-Deutz AG, 5000 Köln Einrichtung zur selbsttaetigen regelung der durchsatzleistung bei der zweistufigen zerkleinerung sproeder materialien

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0629448A2 (fr) * 1993-06-17 1994-12-21 Krupp Polysius Ag Installation et procédé de broyage et de tamisage de matériau friable
EP0629448A3 (fr) * 1993-06-17 1995-02-08 Krupp Polysius Ag Installation et procédé de broyage et de tamisage de matériau friable.
EP0650763A1 (fr) * 1993-10-30 1995-05-03 Klöckner-Humboldt-Deutz Aktiengesellschaft Installation de broyage en circuit
DE102006017510A1 (de) * 2006-04-13 2007-10-18 Khd Humboldt Wedag Gmbh Kreislaufmahlanlage
CN102008989A (zh) * 2010-12-15 2011-04-13 许相柱 节能球磨筛选联合机
CN102008989B (zh) * 2010-12-15 2012-01-25 许相柱 节能球磨筛选联合机
CN107715979A (zh) * 2017-11-14 2018-02-23 郑州格瑞塔电子信息技术有限公司 建筑用水泥生料循环粉碎筛选导出装置

Also Published As

Publication number Publication date
EP0447669B1 (fr) 1993-06-23
ES2043233T3 (es) 1993-12-16
DE59001862D1 (de) 1993-07-29
ZA91799B (en) 1992-01-29
US5110056A (en) 1992-05-05
DE4005323A1 (de) 1991-08-22

Similar Documents

Publication Publication Date Title
EP0447669B1 (fr) Procédé et dispositif de broyage en deux étapes de matériaux friables
EP0603481B1 (fr) Procédé et installation pour le broyage de matière à moudre
EP3154701B1 (fr) Installation de broyage et procédé de concassage de matière à broyer
EP0525423A1 (fr) Dispositif et procédé de broyage de matériau avec une granulométrie variable
DE3719251A1 (de) Verfahren und anlage zur kontinuierlichen druckzerkleinerung sproeden mahlgutes
EP0292739B1 (fr) Procédé et installation pour le broyage de matière à broyer
EP0406591B1 (fr) Procédé et installation de broyage de matière à broyer
EP0403778B1 (fr) Procédé d'exploitation d'une installation de broyage pour matériau friable
DE2032736A1 (de) Verfahren zum Vermählen von grobkörnigen Mineralien mittels zweier hintereinander geschalteter Aggregate
DE102014015549A1 (de) Mahlanlage zum Zerkleinern von Mahlgut sowie Verfahren zum Zerkleinern von Mahlgut
EP0527333B1 (fr) Procédé et installation de broyage pour sable-laitier
DE102015001404B3 (de) Kreislaufmahlanlage mit zwei Mahlvorrichtungen und Verfahren zum Betrieb der Kreislaufmahlanlage
DE3518543C3 (de) Verfahren und Einrichtung zur Zerkleinerung bzw. Mahlung spröden Mahlgutes
DE3520069A1 (de) Verfahren und anlage zur zweistufigen zerkleinerung
DE102015009273B3 (de) Verfahren und Vorrichtung zum zweistufigen Mahlen von Frischgut
DE19514971A1 (de) Verfahren und Anlage zur energiesparenden Herstellung eines Feingutes
AT1073U1 (de) Verfahren und vorrichtung zum mahlen von teilchenförmigem aufgabegut
EP2560761B2 (fr) Dispositif d'alimentation pour une presse à rouleaux à haute pression
EP1448303B1 (fr) Tube broyeur et procede pour broyer des produits a moudre en morceaux
EP0492080B1 (fr) Procédé et appareillage pour contrôler le fonctionnement d'un broyeur à rouleaux
DE4019272C2 (de) Verfahren und Anlage zur Zerkleinerung bzw. Mahlung von sprödem Gut
DE1813134C3 (de) Zementmahlanlage mit Sichteinrichtung
DE19719445A1 (de) Verfahren und Anlage zur Zerkleinerung von Mahlgut
DE2651548A1 (de) Verfahren und vorrichtung zum mahlen und sichten eines gutes
EP0166921A2 (fr) Procédé pour régler le débit de sortie d'un système de broyage

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 ES FR GB IT

17P Request for examination filed

Effective date: 19911205

17Q First examination report despatched

Effective date: 19921207

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR GB IT

REF Corresponds to:

Ref document number: 59001862

Country of ref document: DE

Date of ref document: 19930729

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19930816

ITF It: translation for a ep patent filed

Owner name: MODIANO & ASSOCIATI S.R

ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2043233

Country of ref document: ES

Kind code of ref document: T3

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: KLOECKNER-HUMBOLDT-DEUTZ AG

Effective date: 19940315

PLBN Opposition rejected

Free format text: ORIGINAL CODE: 0009273

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

Free format text: STATUS: OPPOSITION REJECTED

27O Opposition rejected

Effective date: 19950910

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

Ref country code: FR

Payment date: 19991111

Year of fee payment: 10

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

Ref country code: GB

Payment date: 19991117

Year of fee payment: 10

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

Ref country code: ES

Payment date: 19991209

Year of fee payment: 10

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

Ref country code: DE

Payment date: 19991210

Year of fee payment: 10

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: 20001221

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

Effective date: 20001221

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 NON-PAYMENT OF DUE FEES

Effective date: 20010831

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

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: 20011002

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: 20011222

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20020112

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 NON-PAYMENT OF DUE FEES;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: 20051221