EP2125230B1 - Procédé pour fonctionnement de broyage à sec en continu d'une tour de broyage par friction et tour de broyage par friction - Google Patents

Procédé pour fonctionnement de broyage à sec en continu d'une tour de broyage par friction et tour de broyage par friction Download PDF

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Publication number
EP2125230B1
EP2125230B1 EP08700982.5A EP08700982A EP2125230B1 EP 2125230 B1 EP2125230 B1 EP 2125230B1 EP 08700982 A EP08700982 A EP 08700982A EP 2125230 B1 EP2125230 B1 EP 2125230B1
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EP
European Patent Office
Prior art keywords
grinding
gas
milling container
package
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.)
Not-in-force
Application number
EP08700982.5A
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German (de)
English (en)
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EP2125230A1 (fr
EP2125230B8 (fr
Inventor
Stefan Gerl
Jens Sachweh
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.)
Maschinenfabrik Gustav Eirich GmbH and Co KG
Original Assignee
Maschinenfabrik Gustav Eirich GmbH and Co KG
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Publication date
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Priority to PL08700982T priority Critical patent/PL2125230T3/pl
Publication of EP2125230A1 publication Critical patent/EP2125230A1/fr
Publication of EP2125230B1 publication Critical patent/EP2125230B1/fr
Application granted granted Critical
Publication of EP2125230B8 publication Critical patent/EP2125230B8/fr
Not-in-force legal-status Critical Current
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00Disintegrating 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
    • B02C17/16Mills in which a fixed container houses stirring means tumbling the charge
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00Disintegrating 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
    • B02C17/18Details
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00Disintegrating 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
    • B02C17/18Details
    • B02C17/183Feeding or discharging devices
    • B02C17/1835Discharging devices combined with sorting or separating of material
    • B02C17/184Discharging devices combined with sorting or separating of material with separator arranged in discharge path of crushing zone
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00Disintegrating 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
    • B02C17/18Details
    • B02C17/183Feeding or discharging devices
    • B02C17/186Adding fluid, other than for crushing by fluid energy
    • B02C17/1875Adding fluid, other than for crushing by fluid energy passing gas through crushing zone
    • B02C17/188Adding fluid, other than for crushing by fluid energy passing gas through crushing zone characterised by point of gas entry or exit or by gas flow path
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C19/00Other disintegrating devices or methods
    • B02C19/22Crushing mills with screw-shaped crushing means

Definitions

  • the invention relates to a method for the continuous dry grinding operation of a tower friction mill according to the preamble of claim 1 and a tower friction mill according to the preamble of claim 10.
  • a generic tower friction mill is from the U.S. Patent 4,754,934 known.
  • the gas is introduced at the bottom of the grinding container and flows through the packing of grinding media and millbase.
  • a centrifuge is mounted on the drive shaft, which is intended to eject the grinding material particles conveyed upwards from the gas flow and to feed them directly back into the grinding process by gravity. So that the introduced from below into the packing of grinding media gas stream loosens this pack and discharges up the Mahlgutp personality at the top of the mill, the gas must have a considerable pressure.
  • this package must be relatively open-pored, ie the size of the grinding media is limited down.
  • the material to be ground must be relatively coarse. This in turn means that the spaces between the individual grinding bodies are insufficiently filled with regrind.
  • the energy consumption for the pressure blower is very high and is of the same order of magnitude as the energy consumption of the drive motor for the actual grinding process.
  • a tower grate mill known in which the ground material is introduced from above into the grinding container and discharged in the region of the bottom through a sieve.
  • a fluid for example in the form of air
  • a comparable tower friction mill is from the JP 2003 181 316 A known.
  • the sieve holes or sieve gaps in the bottom area can become clogged by worn or broken grinding media. This in turn leads to increased wear, which can eventually lead to damage to the lower ends of the screw webs.
  • Another disadvantage is that well-flowing ground material, such as dry quartz sand, flows very quickly through the MahlSystempackung and thus is not subjected to a controlled grinding process.
  • the invention has for its object to provide a method of the generic type and a tower grate mill of the generic type, in which a continuous dry grinding operation while maintaining the packing of grinding media in the grinding container is possible and in which the Use of relatively small grinding media and a high fineness of the ground material to be ground is achieved.
  • the packing of grinding media is dense during the entire grinding process, as it is not loosened from below, for example by gas.
  • the grinding bodies are conveyed upwards in the area covered by at least one screw land and accordingly flow downwards in the area not covered by the screw land, which is bounded externally by the grinding tank.
  • the millbase is thus at least once fully funded by the grinding media package from top to bottom and once from bottom to top and thereby subjected to a grinding process.
  • the media package Due to the conveying effect of the worm web in the region of the drive shaft, the media package is raised in the interior of the grinding container and forms an approximately frusto-conical, sloping outward surface, over which the grinding media roll to the outside. In this case, they press out the grinding stock on the surface or in the surface through the grinding stock outlet from the grinding container, whereby this is still supported to a considerable extent by the gas flow.
  • the tower grate mill shown in the drawing has a closed top, cylindrical grinding container 1, for whose inner diameter D applies: 0.4 m ⁇ D ⁇ 4.0 m.
  • a screw conveyor 2 is arranged as a grinding-body circulation device, which is arranged coaxially to the vertical center axis 3 of the grinding container 1.
  • the Screw conveyor 2 has a coaxial with the central axis 3 arranged drive shaft 4 with a diameter di on which two mutually parallel screw webs 5 with a slope s and an outer diameter da and an upper end 6 are attached.
  • the shaft 4 is rotationally driven by means of an electric motor 7 in a rotational direction 8.
  • the screw conveyor 4 extends down to the immediate vicinity of the bottom 9 of the grinding container 1.
  • the screw-webs 5 extend from this neighborhood to the bottom 9 over a height hs.
  • the tower grinder mill is very slim. For the ratio of the screw height hs to the diameter D of the grinding container 1, 1.5 ⁇ hs / D ⁇ 3.
  • a closed during operation MahlSystem outlet 10 is provided in the vicinity of the bottom 9 of the grinding container 1 in the latter.
  • a grinding stock outlet 11 is formed on the grinding container 1, to which a grinding stock removal line 12 connects.
  • a grinding media retention device in the form of a gap-sieve 14 is arranged, which in the 4 and 5 is shown. It has between approximately parallel to the central axis 3 extending webs 15 column 16, which - as out Fig. 4 can be seen - extend radially to the axis 3 to the outside and continue to expand from bottom to top, as from Fig. 5 seen. At least in the lower region, its width w is smaller than the diameter d 17 of the smallest grinding media 17 used.
  • the outlet opening 13 has a height h13.
  • the worm webs 5 extend from 0.1 h 13 to 0.5 h 13 over the lower edge 18 of the outlet opening 13, ie its upper end 6 is located at this height above the Bottom edge 18.
  • the cross-sectional area swept by the screw lands 5 is (da 2 - di 2 ) x ⁇ / 4.
  • the free annular cross-sectional area between the worm webs 5 and the grinding container is (D 2 - da 2 ) x ⁇ / 4.
  • the free cross-sectional area between the worm webs 5 and the grinding container 1 should be greater than or at most equal to the swept by the worm webs 5 annular cross-section. The following applies: (D 2 - da 2 ) ⁇ (da 2 - di 2 ) .
  • Fig. 1 opens a Mahlgut inlet 19 diametrically opposite the Mahlgut-outlet 11 in the grinding container 1 a. It is arranged above the upper end 6 of the worm webs 5, specifically starting above the upper edge 20 of the outlet opening 13.
  • the grinding stock inlet 19 is preceded by a grinding material feed line 21 into which the grinding material 22 is gas-tight Dosing device 23, for example, a rotary valve, is supplied.
  • a gas inlet 24 open to the atmosphere in this case an air inlet, is provided.
  • the regrind discharge line 12 is connected to a suction fan 25, with the interposition of a wind sifter 26, for example, a conventional cyclone separator, and a downstream of this dust filter separator 27.
  • a wind sifter 26 for example, a conventional cyclone separator
  • a Filter 28 is provided in the separator 27 . It is connected to the bottom of a gas-tight lock 29, such as a rotary valve. From the wind sifter 26 is coarse material to be ground via a return line 30 of the metering device 23 and thus fed to the grinding stock inlet 19 again.
  • the millbase discharged from the separator 27 has the desired fineness.
  • a pressure transducer 31 is arranged in the grinding container 1.
  • a further pressure transducer 32 is arranged in the regrind discharge line 12 relatively close behind the grinding stock outlet 11. Their pressure readings are applied to a differential pressure gauge 33 for determining the pressure difference between the two measured values.
  • a gas volume meter 34 is disposed between the separator 27 and the blower 25.
  • an additional gas line 35 which can be opened or closed via a controllable valve 36, opens into the grinding stock removal line 12 in the vicinity of the grinding stock outlet 11. About this additional gas can be introduced into the conduit 12 when the gas volume flow coming from the grinding container 1 is not sufficient to remove the ground material.
  • a gas flow meter 37 is inserted in this line 35.
  • the grinding container 1 Before commissioning the grinding container 1 is filled with grinding media 17, up to a height which is 80% to 95% of the height of the grinding container 1 to the upper end 6 of the screw webs 5 to just above the lower edge 18 of the outlet opening thirteenth is. Subsequently, the motor 7 is set in operation, so that the shaft 4 is set with the worm webs 5 in the direction of rotation 8 in operation. Corresponding to the pitch of the worm webs 5, the grinding bodies 17, which are located in the annular cross-sectional area of the grinding container 1 swept by the worm webs 5, are conveyed upwards.
  • the worm webs 5 are in proportion to the pitch s to the outer diameter da screw flights 5 0.5 da ⁇ s ⁇ 1.5 da and preferably 0.8 da ⁇ s ⁇ 1.2 da. Furthermore, the shaft 4 is driven with the worm webs 5 at such a speed that the worm webs 5 an outer peripheral speed of 2.0 to 4.0 m / sec and preferably between 2.2 and 3.0 m / sec.
  • the diameter d17 of the grinding bodies 17 the following applies: 10 mm ⁇ d17 ⁇ 30 mm and preferably 15 mm ⁇ d17 ⁇ 25 mm.
  • the supplied millbase 22 generally has a particle size which is smaller than 0.25 d17 of the diameter d17 of the grinding bodies 17 and preferably less than 0.2 d17. Since the grinding media 17 are conveyed upwards in the region of the screw flights 5, they sink downwards in the outer region not swept by the screw flights 5, as indicated by the circulation flow arrows 38 in FIG Fig. 1 is indicated. The millbase fed in the area of the container wall flows downwards with the grinding bodies 17 and is crushed between them. Connecting ⁇ end it is promoted again with further comminution with the grinding media 17 in the area of the screw webs 5 upwards.
  • the grinding media 17 are only slightly, up to 0.3 h 13, above the lower edge 18 of the outlet opening 13 and the screen 14.
  • regrind 22 which swells radially outward from the packing of grinding media 17, directly in front of the sieve 14.
  • air is sucked in from outside through the gas inlet 24 by the blower 25 and flows around the shaft 4 in accordance with the deflection arrow 40 and over the surface 39 of the grinding-body packing.
  • the gas inlet 24 is predominantly orthogonal, ie substantially directed to the axis 3, then only a simple deflection by 180 ° of the air around the shaft 4. If, however, the gas inlet 24 is arranged predominantly tangentially, then forms a rotational flow out.
  • the conveyed according to the deflection arrow 40 through the grinding container 1 air takes very fine ground material 22, which is fed through the Mahlgut inlet 19, directly with and carries it directly.
  • the gas stream enters the regrind discharge line 12 through the sieve 14.
  • the described gas flow in this case pushes the grinding material 22 located in the grinding container 1 in front of the sieve 14 into the line 12. As far as grinding bodies 17 reach the sieve 14, they are retained by this.
  • the entire material to be ground 22 is discharged after a described circulation.
  • the coarse grinding stock 22 which has not yet been sufficiently comminuted is separated off and returned to the grinding process by the return line 30 and via the metering device 23.
  • the conveying air enters together with the finely ground material to be ground 22 in the dust filter 27, where the finely ground material is deposited on the filter 28 and discharged through the lock 29.
  • the freed from the material to be ground 22 air is discharged through the blower 25.
  • the air additionally can be added via the additional gas line 35 of the conveying air.
  • the design of the actual tower friction mill after Fig. 2 is different from the after Fig. 1 by the arrangement of the gas inlet 24 '. This is located opposite the regrind outlet 11 above the millbase inlet 19.
  • the air flow flows around here corresponding to the flow arrow 41, the shaft 4 and then - as in the embodiment according to Fig. 1 over the surface 39 of the grinding material-MahlSystem-packing and presses the ground material 22 through the sieve 14 in the Mahlgut-discharge line 12.
  • the gas inlet 24 'in the direction of the shaft 4 is moved into the grinding container 1, so that the entering through the Mahlgut inlet 19 Mahlgut 22 can flow directly to the inner wall of the grinding container 1 down into the grinding media package.
  • Fig. 3 differs from the two previously illustrated in that the gas flow is not sucked by means of a suction fan. Rather, a pressure blower 42 is provided, which pushes gas with an arbitrary predeterminable pressure through a gas inlet 24 "from above into the grinding container 1. The gas flows according to the flow arrow 43 from above through the grinding container 1 and then over the Surface 39 to the grinding stock outlet 11 and presses in the manner already described, the material to be ground 22 through the sieve 14th
  • any pressure can be adjusted. So that according to the flow arrow 43 in the grinding container 1 after Fig. 3 inflowing gas does not pass through the grinding stock inlet 19 regrind 22nd entrains or swirled above the media package, the Mahlgut inlet 19 is covered by a guide plate 44 so that the Mahlgut-entry is not affected by the gas flow.
  • a guide plate 44 to cover the grinding stock inlet 19 in the embodiments of the Fig. 1 and 2 be used if necessary.
  • the grinding media outlet 10 ' is provided in the bottom 9 of the grinding container 1, whereby the removal of the grinding media 17 from the grinding container 1 can be facilitated.
  • a difference-pressure measurement is made via the measuring device 33 and the corresponding measured value is passed to a central control unit 45. If the measured differential pressure exceeds a predetermined setpoint, this may be an indication that the screen 14 is partially or completely clogged.
  • the fan unit 25 or the blower 42 can be controlled by the control unit 45 in order to increase and / or the main gas volume flow, which is supplied via the gas inlet 24, 24 'or 24 " The aim is to suck in more gas through the sieve 14 in such a case.
  • a main gas flow rate through the meter 34 which are promoted by the fan 25 and 42, respectively should.
  • the secondary gas volume flow to be supplied via the additional gas line 35 is adjusted so that a predetermined desired gas volume flow is conveyed through the grinding container 1. This funded by the grinding container 1 target gas flow rate results from the difference of the main gas volume flow and the secondary gas flow rate. If the gas volume flows are constantly measured via the measuring devices 34 and 37, it follows from an increase in the volume flow detected by the measuring device 37 that the screen 14 is partially or completely blocked. In such a case, the total gas volume flow to be delivered by the fan 25 or 42 is increased. At the same time, the valve 36 is partially or completely closed to achieve in this way a higher gas flow rate through the grinding container 1, and thus to blow the screen 14. Cumulatively, the already described differential pressure measurement can also be used.

Claims (15)

  1. Procédé pour le fonctionnement du broyage à sec en continu d'une tour de broyage par friction qui
    présente
    - un conteneur de broyage (1) vertical, fermé,
    - un transporteur à vis (2), disposé au centre du conteneur de broyage (1), comprenant
    -- un arbre d'entraînement (4) avec un axe central (3) et
    -- au moins un filet de vis (5), rapporté sur l'arbre d'entraînement (4), s'étendant au-delà d'une hauteur (hs) jusqu'à une extrémité supérieure (6), ne recouvrant la section transversale du conteneur de broyage (1) que partiellement,
    - un ensemble constitué de corps de broyage (17) comportant une surface supérieure (39),
    - une entrée de produit de broyage (19) débouchant dans le conteneur de broyage (1) au dessus de l'ensemble constitué par les corps de broyage (17),
    - une entrée de gaz (24, 24', 24") débouchant dans le conteneur de broyage (1) pour l'introduction de gaz,
    - une sortie de produit de broyage (11) débouchant du conteneur de broyage (1), présentant un bord inférieur (18) et une hauteur (h13), pour l'évacuation du produit de broyage (22) et du gaz, et
    - un moteur (7) pour l'entraînement du transporteur à vis (2) dans une direction de rotation (8) dans laquelle au moins un filet de vis (5) transporte le corps de broyage (17) vers le haut, caractérisé en ce
    - que la surface (39) de l'ensemble constitué par les corps de broyage (17), lors du fonctionnement en rotation du transporteur à vis (2), est configurée à peu près dans une forme émoussée de quille, tombant radialement vers l'extérieur et terminant radialement à l'extérieur de la zone du bord inférieur (18) de la sortie de produit de broyage (11),
    - que le gaz est introduit au dessus de l'ensemble constitué par les corps de broyage (17) dans le conteneur de broyage (1), et
    - que le gaz et le produit de broyage (22) sont évacués du conteneur de broyage (1) dans la zone de la surface (39) de l'ensemble constitué des corps de broyage (17) par la sortie de produit de broyage (3).
  2. Procédé selon la revendication 1 caractérisé en ce
    que le produit de broyage (22) est introduit dans le conteneur de broyage (1) en face de la sortie de produit de broyage (11).
  3. Procédé selon les revendications 1 ou 2 caractérisé en ce
    que le gaz est emmené au dessus de l'ensemble constitué par les corps de broyage (17), moyennant une déviation vers la surface (39) de l'ensemble constitué par les corps de broyage (17).
  4. Procédé selon l'une des revendications 1 à 3 caractérisé en ce
    que le gaz est passé devant l'entrée de produit de broyage (19).
  5. Procédé selon les revendications 1 ou 2 caractérisé en ce
    que le gaz est introduit dans le conteneur de broyage (1) en face de la sortie de produit de broyage (11).
  6. Procédé selon l'une des revendications de 1 à 5 caractérisé en ce
    que le gaz est évacué du conteneur de broyage (1) par aspiration.
  7. Procédé selon l'une des revendications de 1 à 5 caractérisé en ce
    que le gaz est introduit dans le conteneur de broyage insufflé sous pression.
  8. Procédé selon l'une des revendications de 1 à 7 caractérisé en ce
    que le transporteur à vis (2) est entraîné de telle manière qu'au moins un filet de vis (5) présente au niveau de sa circonférence extérieure une vitesse circonférentielle de 2,0 à 4,0 m/sec, de préférence de 2,2 à 3,0 m/sec.
  9. Procédé selon la revendication 1 caractérisé en ce
    que l'ensemble constitué par les corps de broyage (17) est réglé jusqu'à une hauteur (h13) s'arrêtant au maximum à 0,3h13 au dessus du bord inférieur (18) de la sortie du produit de broyage (11).
  10. Tour de broyage par friction qui présente
    - un conteneur de broyage (1) vertical, fermé,
    - un transporteur à vis (2), disposé au centre du conteneur de broyage (1), comprenant
    -- un arbre d'entraînement (4) avec un axe central (3) et
    -- au moins un filet de vis (5), rapporté sur l'arbre d'entraînement (4), s'étendant au-delà d'une hauteur (hs) jusqu'à une extrémité supérieure (6), ne recouvrant la section transversale du conteneur de broyage (1) que partiellement,
    - un ensemble constitué de corps de broyage (17) comportant une surface supérieure (39),
    - une entrée de produit de broyage (19) débouchant dans le conteneur de broyage (1) au dessus de l'ensemble constitué des corps de broyage (17),
    - une entrée de gaz(24, 24', 24") débouchant dans le conteneur de broyage (1) pour l'introduction de gaz,
    - une sortie de produit de broyage (11) débouchant du conteneur de broyage (1), présentant un bord inférieur (18) et une hauteur (h13), pour l'évacuation du produit de broyage (22) et du gaz, et
    - un moteur (7) pour l'entraînement du transporteur à vis (2) dans une direction de rotation (8) dans laquelle au moins un filet de vis (5) transporte le corps de broyage (17) vers le haut, caractérisée en ce
    - que la sortie de produit de broyage (11) présente une ouverture de sortie (13) comportant un tamis (14),
    - que l'extrémité supérieure (6) d'au moins un filet de vis (5) est disposée à la hauteur du tamis (14), et
    - que l'entrée de gaz (24, 24', 24") est disposée au dessus de l'extrémité supérieure (6) d'au moins un filet de vis (5).
  11. Tour de broyage par friction selon la revendication 10 caractérisée en ce
    que l'entrée de gaz (24) est disposée au dessus de la sortie de produit de broyage (11).
  12. Tour de broyage par friction selon la revendication 10 caractérisée en ce
    que l'entrée de gaz (24') est disposée en face de la sortie de produit de broyage (11) et au dessus de l'entrée de produit de broyage (19).
  13. Tour de broyage par friction selon la revendication 10 caractérisée en ce
    que l'entrée de gaz (24") débouche par le haut dans le conteneur de broyage (1).
  14. Tour de broyage par friction selon l'une des revendications 10 à 13 caractérisée en ce
    qu'un déflecteur de gaz (44) est prévu avant l'entrée de produit de broyage (19).
  15. Tour de broyage par friction selon l'une des revendications 10 à 14 caractérisée en ce
    que le tamis (14) est conçu comme un tamis à fente.
EP08700982.5A 2007-02-02 2008-01-04 Procédé pour fonctionnement de broyage à sec en continu d'une tour de broyage par friction et tour de broyage par friction Not-in-force EP2125230B8 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL08700982T PL2125230T3 (pl) 2007-02-02 2008-01-04 Sposób mielenia na sucho w ruchu ciągłym w wieżowym młynie rozcierającym oraz wieżowy młyn rozcierający

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007005250A DE102007005250B3 (de) 2007-02-02 2007-02-02 Verfahren zum kontinuierlichen Trockenmahlbetrieb einer Turmreibmühle und Turmreibmühle
PCT/EP2008/000030 WO2008092542A1 (fr) 2007-02-02 2008-01-04 Procédé pour fonctionnement de broyage à sec en continu d'une tour de broyage par friction et tour de broyage par friction

Publications (3)

Publication Number Publication Date
EP2125230A1 EP2125230A1 (fr) 2009-12-02
EP2125230B1 true EP2125230B1 (fr) 2013-06-05
EP2125230B8 EP2125230B8 (fr) 2013-07-17

Family

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Application Number Title Priority Date Filing Date
EP08700982.5A Not-in-force EP2125230B8 (fr) 2007-02-02 2008-01-04 Procédé pour fonctionnement de broyage à sec en continu d'une tour de broyage par friction et tour de broyage par friction

Country Status (17)

Country Link
US (2) US7971808B2 (fr)
EP (1) EP2125230B8 (fr)
JP (1) JP5358457B2 (fr)
KR (1) KR101381488B1 (fr)
CN (1) CN101600504B (fr)
AU (1) AU2008210059B2 (fr)
BR (1) BRPI0806627A2 (fr)
CA (1) CA2677268C (fr)
DE (1) DE102007005250B3 (fr)
DK (1) DK2125230T3 (fr)
ES (1) ES2424021T3 (fr)
MX (1) MX2009007307A (fr)
PL (1) PL2125230T3 (fr)
RU (1) RU2453372C2 (fr)
UA (1) UA97510C2 (fr)
WO (1) WO2008092542A1 (fr)
ZA (1) ZA200905382B (fr)

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Publication number Priority date Publication date Assignee Title
DE102007005250B3 (de) * 2007-02-02 2008-01-17 Maschinenfabrik Gustav Eirich Gmbh & Co. Kg Verfahren zum kontinuierlichen Trockenmahlbetrieb einer Turmreibmühle und Turmreibmühle
CN101954305A (zh) * 2010-09-25 2011-01-26 昆山密友粉碎设备有限公司 干法搅拌研磨机
WO2013167851A1 (fr) * 2012-05-10 2013-11-14 Belmonte Investments Limited Broyeur par frottement et son procédé d'utilisation
DE102012013279A1 (de) * 2012-07-05 2014-01-09 Roland Nied Verfahren zum Betrieb einer Rührwerkskugelmühle sowie Rührwerkskugelmühle dafür
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RU2453372C2 (ru) 2012-06-20
US8141801B2 (en) 2012-03-27
US7971808B2 (en) 2011-07-05
DK2125230T3 (da) 2013-09-08
MX2009007307A (es) 2009-08-07
US20100102151A1 (en) 2010-04-29
BRPI0806627A2 (pt) 2011-09-13
CA2677268C (fr) 2014-07-08
DE102007005250B3 (de) 2008-01-17
EP2125230A1 (fr) 2009-12-02
CN101600504A (zh) 2009-12-09
PL2125230T3 (pl) 2013-11-29
ZA200905382B (en) 2010-10-27
CN101600504B (zh) 2011-06-15
CA2677268A1 (fr) 2008-08-07
JP5358457B2 (ja) 2013-12-04
KR20090115160A (ko) 2009-11-04
UA97510C2 (ru) 2012-02-27
AU2008210059B2 (en) 2011-08-11
EP2125230B8 (fr) 2013-07-17
US20110240774A1 (en) 2011-10-06
JP2010517739A (ja) 2010-05-27
WO2008092542A1 (fr) 2008-08-07
KR101381488B1 (ko) 2014-04-04
AU2008210059A1 (en) 2008-08-07
RU2009128952A (ru) 2011-03-10

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