EP3331647B1 - Séparateur, broyeur à billes à agitateur et procédé de classification de mélanges de produits - Google Patents

Séparateur, broyeur à billes à agitateur et procédé de classification de mélanges de produits Download PDF

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Publication number
EP3331647B1
EP3331647B1 EP16762960.9A EP16762960A EP3331647B1 EP 3331647 B1 EP3331647 B1 EP 3331647B1 EP 16762960 A EP16762960 A EP 16762960A EP 3331647 B1 EP3331647 B1 EP 3331647B1
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EP
European Patent Office
Prior art keywords
attachments
support plate
rotor
sieve unit
separating device
Prior art date
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EP16762960.9A
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German (de)
English (en)
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EP3331647A1 (fr
Inventor
Lars-Peter Weiland
Thomas GOLLER
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Netzsch Feinmahltechnik GmbH
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Netzsch Feinmahltechnik GmbH
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Publication of EP3331647A1 publication Critical patent/EP3331647A1/fr
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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
    • B02C17/16—Mills in which a fixed container houses stirring means tumbling the charge
    • B02C17/161—Arrangements for separating milling media and ground material

Definitions

  • the present invention relates to a separator, an agitator ball mill and a method for classifying product mixtures.
  • the invention relates to a rotor finger of a rotor, which is arranged around a separation system in the region of the product outlet of agitator ball mills.
  • the agitator ball mill is a device for coarse, fine and very fine comminution or homogenization of regrind. It consists of a grinding chamber with a stirrer in which grinding stock is comminuted by grinding media.
  • Agitator ball mills are usually constructed of a horizontally or vertically arranged, approximately circular cylindrical grinding container.
  • the agitator ensures the intensive movement of the grinding media with suitable stirring elements.
  • the agitator ball mills are filled through an opening in or adjacent to one of the end walls.
  • the millbase suspension is pumped continuously through the grinding chamber.
  • the suspended solids are crushed or dispersed by impact and shear forces between the grinding media.
  • the discharge depends on the design and takes place, for example, through slots in the grinding chamber wall at the end of the mill, the grinding bodies being retained by a suitable separating device.
  • a separating device is formed by a separating screen, wherein a rotor or rotor cage is arranged rotatably about the separating screen.
  • the rotor or rotor cage sits on the stirrer shaft and is not driven separately.
  • the rotor cage is formed in particular by a rotor disk, on whose outer edge rotor fingers are arranged.
  • the rotor fingers are arranged axially to the longitudinal axis of the agitator shaft. Due to the rotational movement of the rotor fingers forming the cage around the separating screen, flows and Forces which prevent the grinding media and non-screenable product from adhering and / or clogging on the dividing screen.
  • DE 69525334 T2 describes an attrition mill with a rotor cage separation system.
  • a cylindrical separating sieve is arranged in the area of the product outlet. This has openings whose dimensions are chosen so that they allow the outflow of sufficiently finely ground regrind, but retain the grinding media.
  • Around the separation screen around a separator rotor is arranged. This consists of a rotor disk and your plurality of rotor fingers, which extend parallel to the agitator axis, are at the circumference of the rotor disk at the same angle and are located radially outside of the separating screen.
  • the rotation of the rotor fingers of the separator rotor about the separation screen causes axial rotation of the product-media mixture and prevents clogging of the separator screen with coarse particles flowing away from the separation screen through the rotor fingers.
  • the Trennsiebmaschen or column are larger than the grinding media used.
  • the separation of the grinding media from the product flow takes place purely by centrifugal forces.
  • such embodiments are in the DE 69525334 T2 described. If these centrifugal forces are not sufficient, then the grinding media leaves the agitator ball mill with the product stream.
  • rotor fingers In order to prevent clogging of the separating screen, rotor fingers are known which have strips or wipers which reach as far as the separating screen and act like wipers. However, these strips or wipers have the disadvantage that they act directly on the dividing screen and product or Grinding can push into the mesh of the separation screen, which in turn can clog. Furthermore, there is a risk with very abrasive materials that the dividing screen wears faster or is destroyed.
  • DE 4029139 A1 discloses an agitator mill with a separator according to the preamble of claim 1.
  • the object of the invention is to provide an improved separation system which does not have the above-mentioned disadvantages of the prior art.
  • the invention relates to a separation device for classifying product mixtures comprising at least two different (product) components.
  • the separation device comprises a shaft, a stationary arranged sieve unit and a Klassierrotor.
  • the sieve unit comprises sieve openings through which at least particles of at least one constituent of the product mixture can pass up to a certain diameter.
  • the classifying rotor comprises a non-rotatably mounted on the shaft support plate and one or more mechanically coupled to the support plate essays that affect a flow behavior of the product mixture in the screen unit.
  • the one or more essays can be fixed in different position positions relative to the rotating shaft on the support plate. Depending on the respective position of one or more attachments, different flow behavior of the product mixture in the area of the sieve unit can be effected.
  • the support plate is preferably formed as a disc. According to a preferred embodiment of the invention, the support plate has a plurality of in a defined, each same radial distance from the center of the support plate arranged fixing. Adjacent fixing agents are in particular at a respective same angle spaced from each other.
  • the essays have fastening means designed corresponding to the fixing means.
  • the attachments can be fixed via the attachment means to the fixing in each case at least two different position positions.
  • the attachments can be fixed to the fixed positions defined by the fixing means in different positional positions, in particular in different rotational positions.
  • the different position positions or rotational positions differ in that, in a first position position or first rotational position, a first minimum radial distance between the attachments and the sieve unit is different from a second minimum radial distance between the attachments and the sieve unit in a second position or second rotational position.
  • all attachments are arranged in the same position or rotational position, so that all attachments have the same minimum radial distance to the screen unit.
  • the attachments are arranged alternately in a first rotational position and in a second rotational position, so that the attachments have a first minimum radial distance and a second minimum radial distance to the screen unit alternately.
  • a first part of the attachments are arranged in a first rotational position and a second, remaining part of the attachments in a second rotational position. The first part of the attachments has a first minimum radial distance and the second part of the attachments has a second minimum radial distance to the screen unit.
  • the rod-shaped attachments have a continuous cross-section in the form of a rectangle, a rhombus or a kite quadrangle.
  • the respective fastening means may be formed centered in the center of the cross section of the attachment or else the attachment means is formed decentralized to the center of the cross section of the attachment.
  • the cross-section, the formation and / or arrangement of the fastener determine how many differing position positions or rotational positions can take the essays on the support plate. For the expert, this results in a variety of ways.
  • the support plate is a rotor disk
  • the attachments are rotor fingers
  • the screen unit is formed as a cylindrical separating screen, wherein the longitudinal axis of the separating screen is arranged coaxially to the rotating shaft of the separator.
  • the rotor disk and the rotor fingers form a so-called rotor cage.
  • the rotor disk has a plurality of fixing means arranged at a defined, respectively equal radial distance from the center of the rotor disk, wherein adjacent fixing means are arranged at a respective same angle at a distance from each other.
  • the rotor fingers have corresponding to the fixing means formed fastening means and can in different position positions or rotational positions on the Fixing means are fixed to the fixing means of the rotor disc. In a first rotational position, a first minimum radial clearance is formed between the rotor finger and the separation screen, and in a second rotational position, a second minimum radial clearance is formed between the rotor finger and the separation screen, wherein the first minimum radial distance and the second minimum radial distance are different.
  • the fixing means are formed, for example, as orthogonal on the support plate in a radius around the center of the support plate arranged mounting rods, which have a substantially square cross-section.
  • the rotor fingers have, for example, a rectangular cross-section, furthermore a receptacle extending at least partially from a free end of the rotor finger along the longitudinal axis of the rotor fingers, in each case one fastening rod, the receptacle corresponding to the cross-section of the fastening rods also being substantially square and centered in the center Cross-section of the rotor finger is arranged.
  • the rotor finger can be mounted in four position positions on the mounting rod, wherein due to the central arrangement of the recording each two position positions result in an identical appearance of the rotor finger on the support plate.
  • the rotor finger has a different cross section, for example in the form of a rhombus or a kite quadrilateral, and / or the receptacle for the fastening rod is not centrally along the longitudinal axis of the rotor finger but decentralized thereto, then the rotor finger can be arranged in further position positions, respectively show a different appearance.
  • the invention further relates to a stirred ball mill comprising a cylindrical grinding container having a Mahlguteinlass and a Mahlgutauslass, wherein in the grinding container, a stirring shaft is arranged with stirring elements.
  • a stirring shaft is arranged with stirring elements.
  • the agitating ball mill is the product to be ground mixed with grinding media, which cause a reduction of the product due to the continuous movement.
  • the grinding media are separated from the sufficiently ground product. While the grinding media remain in the grinding container, the milled product is discharged.
  • a separating device is arranged at the Mahlgutauslass comprising a stationary arranged sieve unit and at least one Klassierrotor.
  • the sieve unit has sieve openings which can pass at least particles of the at least one constituent of the product mixture up to a certain diameter.
  • the classifying rotor comprises a support plate which is seated non-rotatably on the agitator shaft of the agitator ball mill and one or more attachments mechanically coupled to the support plate in order to influence a flow behavior of the product mixture in the region of the sieve unit.
  • the one or more attachments on the support plate are fixed in different position positions relative to the rotating shaft on the support plate such that depending on the respective position position different flow behavior of the product mixture, in particular consisting of vermahlendem product and grinding media, in the area of the screen unit are effected.
  • the agitator ball mill separation device has the above-described features of the general separation device and is designed according to one of claims 1 to 6, wherein the agitator shaft of the agitator ball mill functions as a shaft of the separation device.
  • the sieve unit has, for example, a cylindrical shape.
  • the longitudinal axis of the cylinder is arranged in particular coaxially to the longitudinal axis of the agitator shaft.
  • the center of the support plate of the separation device is arranged on the longitudinal axis of the agitator shaft and the extension of the longitudinal axis of the sieve unit.
  • the support plate forming the classifying rotor with the attachments is in particular arranged such that the attachments extend around the sieve unit in the direction of the grinding stock outlet and upon rotation of the stirrer shaft about the cylindrical one Rotate sieve unit. This creates currents and suction effects that prevent seizing of the grinding media on the screen unit. In particular, the grinding media are thrown outward by the distances between the attachments of the classifying rotor and are thus conducted back into the grinding container.
  • the invention further relates to a method for classifying product mixtures by means of a separating device, in particular by means of a separating device described above.
  • the method can also be used to classify product mixtures in a stirred ball mill, in particular for separating grinding media from ground product.
  • the method can also be used to set minimum radial distances between the rotor fingers of an agitator ball mill separator and a screen unit of the agitator ball mill separator.
  • At least two rotor fingers fixed in a first rotary position are removed from the fixing means of the rotor disk of the agitator ball mill separator and fastened to the fixing means in a second rotational position, a first minimum radial distance between the at least two rotor fingers and the screen unit being different in the first rotational position a second minimum radial distance between the at least two rotor fingers arranged in a balanced manner on the support plate and the screening unit in the second rotational position.
  • FIG. 1 shows a separator 5 according to the conventionally known prior art.
  • FIGS. 2 to 4 each show a plan view of a support plate or rotor disk 8 of a separator 5 according to the conventionally known prior art.
  • Agitator ball mills comprise an agitator comprising a stirring shaft 3 and stirring elements arranged thereon, the stirring shaft 3 generally being arranged coaxially with the longitudinal axis of the cylindrical grinding container (not shown) and extending from the drive side of the agitating ball mill in the direction of product outlet 4 of the agitating ball mill.
  • the agitator ensures by the rotation of suitable stirring elements to the agitator shaft 3 for the intensive movement of the grinding media.
  • the discharge of sufficiently ground product takes place via the product outlet 4 at the end of the mill, the grinding bodies being retained by a separating device 5.
  • the separating device 5 is formed by a separating sieve 6, a shaft 2 and a classifying rotor 1.
  • the agitator shaft 3 simultaneously acts as shaft 2 of the separation device.
  • the classifying rotor 1 is disposed at the outlet end of the stirring shaft 3, in particular, the classifying rotor 1 is rotatably arranged around the separating screen 6.
  • the classifying rotor 1 is designed, in particular, as a rotor cage 7 and consists of a rotor disk 8 arranged on the agitator shaft 3, on the outer edge of which rotor fingers 9 are arranged in a regular arrangement.
  • the rotor fingers 9 are aligned parallel to the longitudinal axis of the agitator shaft 3.
  • fixing units 10 are provided on the rotor disk 8 on which different rotor fingers 9a, 9b are arranged and fastened can be (compare in particular FIGS. 3 and 4 ).
  • the fastening units 10 are designed, in particular, as fixing rods 11 which are arranged fixedly on the rotor disk 8 and which have an approximately square cross-section.
  • the fastening rods 11 are arranged at the same angle at the same angle to each other on the circumference of the rotor disk 8 and extend parallel to the stirring shaft 3.
  • FIG. 3 shows an arrangement of first essays or rotor fingers 9a with a first, approximately square cross section Qa and a side length sa
  • FIG. 4 shows an arrangement of second essays or rotor fingers 9b with a second, approximately square cross section Qb and a side length sb.
  • the rotor fingers 9a, 9b each have a centrally arranged receptacle 12.
  • the receptacle 12 is corresponding to the cross section of the mounting rods eleventh formed so that the rotor fingers 9a, 9b can be easily plugged and fixed to the mounting rods 11.
  • the first rotor fingers 9a have a first cross section Qa with a first side length s-a. This results in a first minimum radial clearance Ra between a first rotor finger 9a mounted on the fixing rod 11 and the separating screen 6.
  • the second rotor fingers 9b have a second cross section Qb with a second side length s-b. Since the second side length s-b is greater than the first side length s-a, it follows that the second cross-section Qb is larger than the first cross-section Qa. This results in a second minimum radial distance Rb, which is smaller than the first minimum radial distance Ra described above, between a second rotor finger 9b mounted on the fixing rod 11 and the separating screen 6.
  • the minimum radial distance R between the respective rotor finger 9 and the separating screen 6 can thus be changed and adapted to the respective product or to the grinding media used in order to achieve the desired flow behavior and thus optimize the classifying effect.
  • FIGS. 5 to 8 each show a plan view of a support plate or rotor disk 8 of a separating device arranged thereon third essays or rotor fingers 9c with a third cross section Qc in different arrangements or position positions or rotational positions D1 to D4.
  • the rotor fingers 9c have a rectangular cross section Qc with different side lengths s1 and s2. That is, the rotor fingers 9c have in particular no square cross section as a special case of a rectangle.
  • the receptacle 12 is arranged decentralized to the center Mc of the cross section Qc of the rotor finger 9c, so that in each case different radial distances between the receptacle 12 and the respective sides s1, s2 of the rectangular cross section Qc are formed.
  • a square rotor finger according to the prior art (see. FIGS. 3 and 4 ) extended on the side facing the screen, so that a rectangular cross section Qc is formed.
  • the receptacle 12 may be formed such that the minimum radial distances Rc2 and Rc4 formed each have the same amount. According to a further embodiment, the receptacle 12 may be formed such that the minimum radial distances Rc2, Rc3 and Rc4 formed each have the same amount and only the minimum radial distance Rc1 in the first rotational position D1 clearly differs.
  • FIGS. 9 and 10 each show a plan view of a support plate or rotor disk 8 of a separating device arranged thereon fourth essays or rotor fingers 9d with a fourth cross-section Qd in different arrangements or position positions or rotational positions D1 and D2.
  • the rotor fingers 9c have a rectangular cross section Qc with different side lengths s1 and s2. That is, the rotor fingers 9d in particular have no square cross section as a special case of a rectangle.
  • the receptacle 12 is arranged centrally to the center Md of the cross section Qd of the rotor finger 9d, so that in each case equal distances between the receptacle 12 and the two sides s1 and the two sides s2 of the rectangular cross section Qd are formed.
  • a rotor finger 9d can be arranged in two differing rotational positions D1 and D2 with different minimum radial distances Rd1 and Rd2.
  • the side s1 or s2 facing the separation screen 6 can be replaced by rotating the rotor finger 9d by 180 degrees when it is worn.
  • the entire rotor finger 9d need not be replaced and replaced with every wear.
  • FIGS. 11 to 14 each show a plan view of a support plate or rotor disk 8 of a separating device arranged thereon fifth essays or rotor fingers 9e with a fifth cross section Qe in different arrangements or position positions or rotational positions D1 to D4.
  • the rotor fingers 9e have a cross section Qe in the form of a kite quadrilateral, in particular with two pairs of equally long adjacent sides with the different side lengths s1 and s2.
  • the receptacle 12 is arranged in the illustrated embodiment, centrally to the intersection of the diagonal Me of the cross section Qe of the rotor finger 9e.
  • the rotor finger 9e can be arranged in four different rotational positions D1 to D4 on the mounting rod 11, wherein each result in different minimum radial distances Re1, Re2, Re3, Re4 between the rotor finger 9e and the separating screen 6.
  • the rotor fingers 9e have the shape of a quadrangle in cross section Qe, that is to say they show in cross-section Qe two pairs of equally long, adjacent sides s1 and s2, where the diagonals halve each other and the lengths of s1 and s2 are different.
  • the longer sides s1 of the kite quadrangle are mounted in the direction of the dividing screen 6. This corresponds to the rotational positions D1 and D2. Due to the shape of the kite quadrangle, a kind of slider, which however does not touch the separating sieve 6, thus arises above the separating sieve 6.
  • the rotor fingers of this embodiment are designed such that the cross section represents a crooked dragon, in which the longer, the separating screen facing sides have different lengths.
  • the cross section represents a crooked dragon, in which the longer, the separating screen facing sides have different lengths.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Combined Means For Separation Of Solids (AREA)

Claims (13)

  1. Dispositif séparateur (5), destiné à classifier des mélanges de produits constitués d'au moins deux ingrédients, le dispositif séparateur (5) comprenant :
    - un arbre (3) ;
    - un ensemble de tamisage (6) placé de manière stationnaire, lequel est susceptible de faire passer au moins des particules d'au moins un ingrédient du mélange de produits jusqu'à un diamètre déterminé, ainsi
    - qu'au moins un rotor de classification (1), qui comporte une plaque d'appui (8) reposant de manière solidaire en rotation sur l'arbre (3) ainsi qu'un ou plusieurs embouts (9) mécaniquement accouplés sur la plaque d'appui (8), pour influencer une caractéristique d'écoulement du mélange de produits dans la zone de l'ensemble de tamisage (6)
    l'un ou les plusieurs embouts (9) étant susceptibles d'être immobilisés dans différentes positions par rapport à l'arbre (3) rotatif sur la plaque d'appui (8), de telle sorte qu'en fonction des positions respectives, différentes caractéristiques d'écoulement du mélange de produits puissent être produites dans la zone de l'ensemble de tamisage (6), caractérisé en ce que les embouts (9) sont conçus en forme de barres et comportent une section transversale (Q) rectangulaire en continu ou une section transversale (Q) présentant en continu la forme d'un losange ou la forme d'un cerf-volant.
  2. Dispositif séparateur (5) selon la revendication 1, la plaque d'appui (8) comprenant une pluralité de moyens de fixation placés avec un écart radial (R) défini, respectivement identique par rapport au point médian de la plaque d'appui (8), des moyens de fixation (11) voisins étant placés en étant écartés d'un angle respectivement identique, les embouts (9) comportant des moyens d'attache (10, 11) conçus en correspondance avec les moyens de fixation (11) et les embouts (9) étant immobilisés par l'intermédiaire des moyens d'attache (10, 11) sur les moyens de fixation (11) .
  3. Dispositif séparateur (5) selon la revendication 2, les embouts (9) étant susceptibles d'être immobilisés dans les positions fixes définies par les moyens de fixation (11) dans différentes positions, notamment dans au moins deux différentes positions en rotation (D1, D2), dans une première position, respectivement une première position en rotation (D1), un premier écart radial (R) minimum entre les embouts (9) et l'ensemble de tamisage (6) étant différent d'un deuxième écart radial (R) entre les embouts (9) et l'ensemble de tamisage (6) dans une deuxième position, respectivement une deuxième position en rotation (D2).
  4. Dispositif séparateur (5) selon la revendication 3, tous les embouts (9) étant placés dans la même position, respectivement position en rotation, de sorte que tous les embouts (9) présentent le même écart radial (R) minimum par rapport à l'ensemble de tamisage (6).
  5. Dispositif séparateur (5) selon la revendication 3, les embouts (9) étant placés alternativement dans une première position en rotation et dans une deuxième position en rotation, de telle sorte que les embouts (9) présentent alternativement un premier écart radial (R) minimum et un deuxième écart radial (R) minimum par rapport à l'ensemble de tamisage (6) ou une première partie des embouts (9) étant placée dans une première position en rotation et une deuxième partie restante des embouts (9) étant placée dans une deuxième position en rotation, de telle sorte que la première partie des embouts (9) présente un premier écart radial minimum et la deuxième partie des embouts (9) présente un deuxième écart radial minimum par rapport à l'ensemble de tamisage (6).
  6. Dispositif séparateur (5) selon l'une quelconque des revendications précédentes, le moyen d'attache (10, 11) étant conçu de manière centrée par rapport au point médian de la section transversale (Q) de l'embout (9) ou le moyen d'attache (10, 11) étant conçu de manière décentrée par rapport au point médian (M) de la section transversale (Q) de l'embout (9).
  7. Broyeur agitateur à boulets, comprenant un récipient de broyage cylindrique, qui comporte une entrée de produit à broyer et une sortie de produit broyé (4), dans le récipient de broyage étant placé un arbre agitateur (3) pourvu d'éléments agitateurs, pourvu d'un dispositif séparateur (5) selon l'une quelconque des revendications 1 à 6, placé à l'avant de la sortie de produit broyé (4), l'arbre agitateur (3) du broyeur agitateur à boulets faisant office d'arbre (2) du dispositif séparateur (5).
  8. Broyeur agitateur à boulets selon la revendication 7, l'ensemble de tamisage (6) présentant une forme cylindrique et un axe longitudinal de l'ensemble de tamisage (6) étant placé de manière coaxiale par rapport à l'axe longitudinal de l'arbre agitateur (3).
  9. Broyeur agitateur à boulets selon la revendication 8, le point médian de la plaque d'appui (8) du dispositif séparateur (5) étant placé sur l'axe longitudinal de l'arbre agitateur (3) et dans le prolongement de l'axe longitudinal de l'ensemble de tamisage (6).
  10. Procédé, destiné à classifier des mélanges de produits au moyen d'un dispositif séparateur (5) selon les revendications 1 à 6, pourvu d'un ensemble de tamisage (6) stationnaire, d'une plaque d'appui reposant de manière solidaire en rotation sur un arbre (3), la plaque d'appui (8) comportant un ou plusieurs embouts (9) mécaniquement accouplés sur la plaque d'appui (8), des positions des embouts (9) sur la plaque d'appui (8) étant susceptibles d'être déterminées de différentes manières, pour faire varier la caractéristique d'écoulement du mélange de produits dans la zone de l'ensemble de tamisage (6) et pour régler un effet de classification souhaité.
  11. Procédé selon la revendication 10, des écarts minima entre les embouts (9) et un point médian de la plaque d'appui (8) étant réglés en fonction de la caractéristique d'écoulement souhaitée du mélange de produits.
  12. Procédé selon la revendication 10, des écarts minima entre les embouts (9) et l'ensemble de tamisage (6) du dispositif séparateur (5) étant réglés pour le réglage d'un effet de classification souhaité.
  13. Procédé, destiné à classifier des mélanges de produits dans un broyeur agitateur à boulets selon l'une quelconque des revendications 7 à 9, des écarts minima entre les embouts (9) et l'ensemble de tamisage (6) du dispositif séparateur (5) étant réglés pour le réglage d'un effet de classification souhaité.
EP16762960.9A 2015-08-04 2016-07-23 Séparateur, broyeur à billes à agitateur et procédé de classification de mélanges de produits Active EP3331647B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015112760.1A DE102015112760B4 (de) 2015-08-04 2015-08-04 Trennvorrichtung, Rührwerkskugelmühle und Verfahren zum Klassieren von Produktgemischen
PCT/DE2016/000288 WO2017020880A1 (fr) 2015-08-04 2016-07-23 Dispositif de séparation, broyeur agitateur à boulets, et procédé de criblage de mélanges de produits

Publications (2)

Publication Number Publication Date
EP3331647A1 EP3331647A1 (fr) 2018-06-13
EP3331647B1 true EP3331647B1 (fr) 2019-12-04

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EP16762960.9A Active EP3331647B1 (fr) 2015-08-04 2016-07-23 Séparateur, broyeur à billes à agitateur et procédé de classification de mélanges de produits

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EP (1) EP3331647B1 (fr)
CN (1) CN106423817B (fr)
DE (1) DE102015112760B4 (fr)
ES (1) ES2774466T3 (fr)
WO (1) WO2017020880A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018123096B4 (de) 2018-09-20 2022-01-27 Netzsch Feinmahltechnik Gmbh Rührwerkskugelmühle und Verfahren zum Betreiben einer Rührwerkskugelmühle

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DE8517645U1 (de) * 1985-06-18 1988-08-04 Gebrüder Netzsch, Maschinenfabrik GmbH & Co, 8672 Selb Rührwerksmühle
DE4029139A1 (de) * 1990-09-13 1992-03-19 Netzsch Erich Holding Ruehrwerksmuehle
DE4448043B4 (de) * 1994-04-11 2007-12-13 Erich Netzsch Gmbh & Co Holding Kg Rührwerksmühle
DE69525334T2 (de) 1994-04-11 2002-07-11 Netzsch Erich Holding Reibmühle
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EP3331647A1 (fr) 2018-06-13
DE102015112760A1 (de) 2017-02-09
CN106423817A (zh) 2017-02-22
ES2774466T3 (es) 2020-07-21
CN106423817B (zh) 2020-02-07
WO2017020880A1 (fr) 2017-02-09
DE102015112760B4 (de) 2017-03-23

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