EP3057710B1 - Dispositif de pré-broyage pour un broyeur à boulets ou un broyeur à agitateur et broyeur à boulets avec dispositif de pré-broyage - Google Patents

Dispositif de pré-broyage pour un broyeur à boulets ou un broyeur à agitateur et broyeur à boulets avec dispositif de pré-broyage Download PDF

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Publication number
EP3057710B1
EP3057710B1 EP14816109.4A EP14816109A EP3057710B1 EP 3057710 B1 EP3057710 B1 EP 3057710B1 EP 14816109 A EP14816109 A EP 14816109A EP 3057710 B1 EP3057710 B1 EP 3057710B1
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EP
European Patent Office
Prior art keywords
crushing
area
crushing means
external
truncated cone
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.)
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EP14816109.4A
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German (de)
English (en)
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EP3057710A1 (fr
Inventor
Udo Enderle
Theron Harbs
Holger Moeschl
Lars-Peter Weiland
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Netzsch Feinmahltechnik GmbH
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Netzsch Feinmahltechnik GmbH
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Priority to PL14816109T priority Critical patent/PL3057710T3/pl
Publication of EP3057710A1 publication Critical patent/EP3057710A1/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/18—Details
    • B02C17/183—Feeding or discharging devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/18—Details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C19/00—Other disintegrating devices or methods
    • B02C19/08—Pestle and mortar
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C2/00—Crushing or disintegrating by gyratory or cone crushers
    • B02C2/10—Crushing or disintegrating by gyratory or cone crushers concentrically moved; Bell crushers
    • 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
    • B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
    • B02C23/38—Adding fluid, other than for crushing or disintegrating by fluid energy in apparatus having multiple crushing or disintegrating zones

Definitions

  • the present invention relates to a Vorzerklein mecanicsvortechnische for a ball mill or a stirred ball mill and a ball mill with Vorzerklein mecanics worn according to the features of the preamble of claims 1 and 11.
  • the invention relates to a Vorzerklein mecanicsvortechnische for a ball mill or a stirred ball mill or a ball mill with Vorzerklein réellesvortechnisch.
  • the ball mill is a device for coarse, fine and fine crushing or homogenization of regrind. It consists of a rotating grinding chamber in which ground material is comminuted by grinding media.
  • Ball mills are usually constructed of a horizontally rotatably mounted, approximately circular cylindrical grinding container. The mills are filled by a central opening in one of the end walls, the so-called Mahlguteinlass. 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 means of a separating device.
  • a special form of the ball mill is the agitator ball mill.
  • Agitator ball mills consist of a vertically or horizontally arranged, usually approximately cylindrical grinding container, which is filled to 70 - 90% with grinding media.
  • the grinding container is usually stationary in stirred ball mills, not rotatably mounted.
  • An agitator with suitable stirring elements ensures the intensive movement of the grinding media.
  • 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. At the discharge of the mill, the separation of ground material and grinding media by means of a suitable separator.
  • the document DD217434 B1 describes a vertically arranged agitator ball mill comprising in the upper inlet area a pre-crushing device connected to the stirring shaft.
  • a pre-crushing device connected to the stirring shaft.
  • This consists of a crushing cone which is non-rotatably mounted on the agitator shaft and a crushing ring attached to the grinding container.
  • the ground material is introduced into the crushing gap between crushing cone and crushing ring and pre-crushed before it falls into the grinding container, where it is further processed by the stirring shaft and the grinding media.
  • the document DE 102008058585 A1 discloses an agitator ball mill with a horizontally arranged grinding container and a stirring shaft, wherein between the Mahlguteinlass and the grinding chamber, a pre-shredding device is provided, which has a gap protection to the grinding chamber. This prevents that grinding media can flow back and get into the Vorzerklein ceremoniessvorraum.
  • EP 1980323 B1 describes a cutting system with a cutting rotor comprising rotor lugs, on the outwardly facing surfaces rotor cutting plates are fixed with cutting edge.
  • a stator ring Around the cutting rotor is a stator ring with an annular base and stator lugs.
  • the Statorstollen each have an inwardly facing StatorausEnglishung with Statorschneidplatte.
  • the Statorschneidplatten are each arranged and fixed so that they are opposite to the rotor cutting plates.
  • the invention has for its object to improve the pre-crushing of solid constituents of regrind, in particular to provide a pre-crushing device in which the problem of setting coarse particles and / or impurities is reduced or minimized.
  • the invention relates to a pre-crushing device for a ball mill or agitator ball mill.
  • the pre-comminution device is arranged in the grinding container between a grinding material inlet of the ball mill or agitator ball mill and a grinding chamber and serves in particular to pre-comminute the material to be ground, so that the grinding material entering the grinding space preferably has only components with a predefined maximum size.
  • the pre-crushing device consists of a first stationary crushing means and a second rotationally movable crushing means, between which a crushing gap is formed.
  • the first stationarily formed comminution means is in particular a comminution ring arranged in the grinding container.
  • the first stationarily formed comminuting means has an internal toothing.
  • the second shredding means comprises a first portion and a second portion.
  • the comminution gap is formed, in particular, between the first stationarily formed comminution means and the first subarea of the second comminution means.
  • the second subregion of the second comminuting means has conductive structures for the ground material.
  • the guide structures serve, in particular, to supply the grinding material entering via the grinding material inlet to the grinding chamber in the direction of the first subregion of the second comminuting means and thus in the direction of the comminuting gap formed between comminuting ring and first subregion.
  • the first portion of the second crushing means comprises a first outer toothing.
  • the first comminuting means and the second comminuting means are arranged so that the external toothing of the first subregion of the second comminuting means largely engages with the formation of the comminution gap into the internal toothing of the first comminuting means, in particular of the comminution ring.
  • the comminution gap forms a minimum distance between the internal toothing and the external toothing.
  • the inner and outer teeth can for example be largely formed positively to one another. However, the teeth are separated from each other by the minimum distance of the comminution gap, that is, the teeth of the two comminution means do not touch each other.
  • the guide structures of the second subregion of the second comminuting means are formed by a coarse external toothing of this subregion.
  • the second subregion comprises a second subregion External teeth with second external teeth, which have a second tooth height and width. This second tooth height and width is greater than a first tooth height and width of the first outer teeth described above in the first portion of the second grinding means.
  • the coarse external toothing has a tooth width of the individual teeth, which increases in the direction of the adjacent first subregion from a free end of the second subregion.
  • the tooth height of the second external teeth may also decrease in the direction of the adjacent first partial area.
  • the description of the tooth shape relates in particular to the outer surfaces of the second external teeth.
  • the sides defining the outer surface of the second outer teeth have a curved course.
  • one of the two sides has a greater curvature, whereby the broadening of the outer surfaces of the second outer teeth is formed in the direction of the adjacent first portion.
  • the first outer toothing of the first portion of the second comminution means extends over the outer surfaces of the second outer toothing of the second portion, i. the second portion has a so-called double teeth, wherein the outer surfaces of the coarse outer teeth show an attached fine toothing.
  • the fine toothing essentially corresponds to the first outer toothing of the first subregion of the second comminuting means.
  • the second portion of the second rotatably movable comminuting means is formed as a truncated cone-like region with a truncated cone base surface and a truncated cone top surface.
  • the first portion may be formed as a largely cylindrical area with a cylinder base.
  • the first portion could also be formed as a truncated cone-like area.
  • the truncated cone base area of the second subarea and the cylinder base area of the first subarea are largely identical.
  • the largely cylindrical area adjoins the truncated cone base area of the truncated cone-like area with a cylinder base area.
  • the first outer toothing with first outer teeth of a first tooth height and width is assigned to the largely cylindrical portion.
  • the first external teeth are formed corresponding to the internal teeth of the internal teeth of the first crushing means, in particular to the internal teeth of the internal teeth of the crushing ring.
  • the first crushing means and the second crushing means are arranged so that the external teeth of the cylindrical portion engages with formation of the crushing gap largely in the internal toothing of the first crushing means, wherein the crushing gap forms a minimum distance between the internal teeth and the external teeth.
  • the truncated cone-like region of the second shredding medium has a second external toothing with second external teeth.
  • the second outer teeth have a second tooth height and width that is greater than the first tooth height and width of the first outer teeth in the cylindrical portion of the second comminution medium.
  • the tooth width of the second outer teeth increases from the truncated cone cover surface in the direction of the cylindrical area and / or that the tooth height of the second outer teeth decreases in the direction of the cylindrical area.
  • the sides or edges, which respectively bound the outer surface of the outer teeth have a curvature.
  • one of the sides is more curved, which causes the widening of the second external teeth in the direction of the cylindrical area.
  • the first outer toothing of the cylindrical portion of the second comminuting means is continued beyond the second outer toothing of the truncated cone-like portion of the second comminuting means.
  • the present invention is a device for pre-shredding coarse constituents, for example nuts, in the inlet region of a ball mill or agitator ball mill, in particular in a region between the ground material inlet and the grinding chamber.
  • the ball mill or agitator ball mill is used in particular for grinding wet regrind, but can also be used for dry grinding.
  • the pre-shredding device is particularly constructed in two parts and consists of a stationary crushing ring and a movably arranged, in particular rotatable, crushing means.
  • the crushing ring comprises an internal toothing in the region of the inner circumferential surface.
  • the comminuting means comprises a first region having first teeth of a first material thickness and / or material height and a second region having first and second teeth having a first material thickness and / or material height the first teeth and a second material thickness and / or material height of the second teeth.
  • the first material thickness and / or material height is smaller than the second material thickness and / or material height.
  • the first material thickness and / or material height of the teeth of the comminution means correspond to the material thickness and / or material height of the inner teeth of the comminuting ring.
  • the second teeth of the comminuting agent are formed significantly stronger in the feed region of the pre-comminution device than the first teeth of the comminution means in the region of a comminution or crushing ring.
  • the second coarse teeth in the second region of the comminution means also have a tapered tooth shape.
  • the tooth form tapers in the direction of the free end region of the cone-like comminution means facing away from the comminution ring or in the direction of the top surface of the comminution means embodied as a truncated cone.
  • the entire pre-shredding device is designed and arranged between Mahlguteinlass and grinding chamber that as possible no dead space is formed in order to avoid the setting of coarse particles and / or impurities.
  • the invention finds particular use in ball mills or stirred ball mills for the production of chocolate masses, fillings for chocolate and other foods.
  • the invention is also suitable for other products to be crushed and can also be used for millbase suspensions or with appropriate dimensioning for the pre-crushing of regrind in mining etcetera.
  • the innovation in the invention thus consists in a combination of a fine toothing and a coarse toothing, in particular in combination with a tapered tooth shape of the coarse toothing, which leads to a better intake behavior with coarse product components, especially if the ground material comprises product components of different sizes. Due to the coarse toothing, a larger tooth depth is formed on the inlet side. As a result, a better pumping action and / or turbulence is achieved with the pre-shredding device according to the invention, which prevents the ground material or product from adhering to the inlet region.
  • the finished first comminution means in particular the comminution ring equipped with an internal toothing, is arranged and fastened in a grinding container of a ball mill or agitator ball mill.
  • the crushing ring is arranged so that it divides the interior of the ball mill or agitator ball mill in a grinding room and an anteroom.
  • the second crushing means is arranged and fixed to a rotatable shaft along a longitudinal axis of the grinding container, so that the first portion of the second crushing means is arranged with the first outer teeth so that they largely engage in the internal teeth of the crushing ring to form the forming a minimum gap forming crushing gap.
  • the second portion of the second comminuting agent is then arranged in the antechamber between Mahlguteinlass the ball mill or agitator ball mill and the first crushing or grinding chamber.
  • the first stationarily formed comminuting means generally has an outer diameter which corresponds approximately to the inner diameter of the grinding container and is arranged and fixed in the grinding container.
  • the second crushing means is arranged and fixed to the agitator shaft of a stirred ball mill.
  • the millbase for large mills in particular of wet-grinding mills, can be pre-comminuted before it is further processed in the milling space by the grinding aids.
  • the coarse toothing of the rotating comminuting agent also improves the introduction of the millbase into the grinding chamber and at least largely prevents residues of millbase in the antechamber between the millbase inlet and the grinding chamber.
  • the pre-shredding device according to the invention can be integrated directly in the assembly of mills in this. But it is also possible to retrofit mills with a Vorzerklein réelles worn invention, if necessary, an existing Vorzerklein réelles worn must be dismantled before.
  • FIG. 1 shows a schematic view of a stirred ball mill 1a with vertically arranged grinding container 2 and stirring tool 3 according to the prior art.
  • the agitator ball mill 1a has an upper Mahlguteinlass 4 and a lower Mahlgutauslass 5, which is associated with a separator 6.
  • the separator 6 holds the grinding media (not shown) in the grinding container 2 back.
  • the agitator ball mill 1a further comprises one with the agitator shaft 3 * of the agitating tool This consists of a crushing cone 8, which is rotatably mounted on the agitator shaft 3 * and attached to the grinding container 2 crushing ring 9.
  • the ground material is introduced into the crushing gap S between crushing cone 8 and crushing ring 9 and is pre-crushed before it falls into the grinding container 2, where it is further processed by the stirring tool 3 and the grinding media.
  • the ground product is then removed via the Mahlgutauslass 5 from the stirred ball mill 1a.
  • FIG. 2 shows a schematic view of another agitator ball mill 1b with horizontally arranged grinding container 2 and stirring tool 3 according to the prior art.
  • the agitator ball mill 1b has an upper Mahlguteinlass 4 and on the opposite side of the grinding container 2 centrally arranged Mahlgutauslass 5, which is associated with a separator 6.
  • Mahlgutauslass 5 which is associated with a separator 6.
  • the separator 6 holds the grinding media M in the grinding container 2 back.
  • the agitating ball mill 1b further comprises a pre-shredding device 7 connected to the agitator shaft 3 *. This consists of a crushing cone 8, which is arranged fixed against rotation on the agitator shaft 3 * of the agitating tool 3 and a crushing ring 9 fastened to the grinding container 2.
  • the ground material is introduced into the crushing gap S introduced between crushing cone 8 and crushing ring 9 and is pre-crushed before it enters the grinding container 2, where it is further processed by the stirring tool 3 and the grinding media M.
  • the ground product is then removed via the Mahlgutauslass 5 from the agitator ball mill 1b.
  • the pre-shredding device 7 has a gap protection for the grinding space 2R, which prevents the grinding bodies M from flowing back and from entering the pre-shredding device 7.
  • a pre-shredding device 7 (compare in particular FIG. 6 ) consists of a first stationary crushing means 20 (see Figures 3 ) and a second rotatably movable comminuting means 30 (cf. FIGS. 4 ), between which a crushing gap S is formed.
  • the first comminuting means 20 is designed as a so-called comminution ring 21 and the second comminution means 30 is designed as a so-called extended truncated cone 31.
  • the pre-comminuting device is arranged inside the mill between the grinding stock inlet 4 and the grinding space 2R (see also FIG FIGS.
  • Figures 3 show various views of a first crushing means 20 a Vorzerklein ceremoniessvoroplasty invention, in particular FIG. 3B a section along the section line AA according to FIG. 3A
  • the first comminuting means 20 is designed in particular as a comminuting ring 21.
  • the inner circumferential surface 24 of the comminution ring 21 has a so-called internal toothing of internal teeth 26.
  • FIG. 3C shows a perspective view of the comminution ring 21 formed as the first crushing means 20 and Figure 3D shows a detail FIG. 3A , Here, in particular, the internal toothing of the inner peripheral surface 24 by means of fine inner teeth 26 can be clearly seen.
  • FIGS. 4 show different views of a second crushing means 30 of a pre-crushing device according to the invention, in particular FIG. 4C a section along the section line AA according to FIG. 4B represents.
  • Figure 4D shows a detail of FIG. 4C
  • Figure 4E shows a plan view of the second crushing means 30 on a top surface DF.
  • the second comminuting means 30 comprises a region designed as a truncated cone 35 and a cylindrical region 34.
  • the region formed as a truncated cone 35 has a base area GF, a top surface DF and an outside circumferential surface AF 35 .
  • the cylindrical region 34 has a cylinder base area ZF with the same cross section or the same diameter as the base area GF of the truncated cone 35 and an outer lateral surface AF 34 .
  • the second shredding means 30 has at least partially outer teeth 36 on. Furthermore, the second shredding means 30 at least partially second external teeth 37.
  • the second shredding means 30 comprises a first cylindrical portion 34, having first teeth 36 of a first material thickness and / or material height and a second frusto-conical portion 35 having first teeth 36 and second teeth 37 of a second material thickness and / or material height and wherein the first material thickness and / or material height is smaller than the second material thickness and / or material height.
  • the first material thickness and / or material height of the fine outer teeth 36 of the second correspond Crushing means 30 at least largely with the material thickness and / or material height of the inner teeth 26 of the crushing ring 21 (see also Figures 3 ).
  • the so-called coarse teeth 37 of the second comminuting means 30 are formed significantly stronger in the intake area of the pre-comminuting device 7 than the fine teeth 36 of the second comminution means 30 and / or the fine inner teeth 26 of the first comminuting means 20 or comminution ring 21.
  • the second coarse outer teeth 37 in the second Region 35 of the second comminution means 30 also have a tapered tooth shape.
  • the tooth form tapers in the direction of the free end region of the second comminuting means 30 facing away from the comminution ring 21 or in the direction of a cover surface DF of the second region of the second comminution means 30 designed as truncated cone 35.
  • fine teeth 36 extend over the outer circumferential surfaces of the coarse outer teeth 37.
  • coarser second outer teeth 37 of the second crushing means 30 coarse particles of the ground material can be better detected and pre-shredded.
  • the entire pre-comminuting device is designed in this way and between grinding stock inlet 4 and grinding space 2R (see also FIG. 2 and 6 ) arranged so that no possible dead space is formed in order to avoid the seizure of coarse particles and / or impurities by the material to be ground.
  • the sides delimiting the outer surface of the coarse outer teeth 37 have a curved course.
  • one of the two sides has a greater curvature, whereby the widening of the outer teeth 37 in the direction of the adjacent cylindrical portion 34 is formed.
  • FIG. 5 shows a detail of the toothing between the first crushing means 20 and second crusher 30, in particular the fine inner teeth 26 of the crushing ring 21 and the fine outer teeth 36 of the cylindrical portion 34 of the second crushing means 30.
  • the fine inner teeth 26 and the fine outer teeth 36 engage to form a crushing gap S. largely intertwined.
  • the comminution gap S defines a minimum distance between the fine inner teeth 26 of the comminuting ring 21 and the fine outer teeth 36 of the cylindrical portion 34 of the second comminution means 30, so that through the comminution gap S into the grinding space 2R (cf. FIGS. 1, 2 and 6 ) is pre-crushed entering grind.
  • a fine toothing 26, 36 and a coarse toothing 37 in particular in combination with a tapering tooth form of the coarse toothing 37, leads to a better intake behavior with coarse product components, in particular if the mill base comprises product components of different sizes. Due to the coarse toothing 37, a larger tooth depth is additionally formed on the inlet side. As a result, a better pumping action and / or turbulence is achieved with the pre-shredding device according to the invention, which prevents the product from adhering to the inlet region 10 (cf. Figures 2 and 6 ).

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Crushing And Grinding (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Claims (11)

  1. dispositif de broyage préalable (7) pour un broyeur à billes ou un broyeur à billes de mélangeur (1), dans lequel le dispositif de broyage préalable (7) peut être agencé entre une entrée de matière à broyer (4) du broyeur à billes ou du broyeur à billes de mélangeur (1) et une chambre de broyage (2R) et comporte un premier moyen de broyage conçu stationnaire (20) et un deuxième moyen de broyage mobile en rotation (30), entre lesquels est formée une fente de broyage (S) et où le premier moyen de broyage conçu stationnaire (20) est un anneau de broyage apte à être agencé dans le récipient de broyage (2), caractérisé en ce que le premier moyen de broyage conçu stationnaire (20) présente une denture intérieure et en ce que le deuxième moyen de broyage (30) comporte une première région partielle (34) et une deuxième région partielle (35), la deuxième région partielle (35) présentant des structures de guidage pour la matière à broyer, au moyen desquelles la matière à broyer peut être guidée vers la première région partielle (34) et où au moins la première région partielle (34) du deuxième moyen de broyage (30) comporte une première denture extérieure, le premier moyen de broyage (20) et le deuxième moyen de broyage (30) pouvant être agencés de telle façon que la denture extérieure de la première région partielle (34) du deuxième moyen de broyage (30) s'engage largement dans la denture intérieure du premier moyen de broyage (20) en formant la fente de broyage (S).
  2. Dispositif de broyage préalable (7) selon la revendication 1, dans lequel le deuxième moyen de broyage (30) présente une deuxième denture extérieure avec des deuxièmes dents extérieures (37) dans la deuxième région partielle (35), dans lequel les deuxièmes dents extérieures (37) présentent une deuxième hauteur et largeur de dent, laquelle est supérieure à une première hauteur et largeur de dent des premières dents extérieures (36) dans la première région partielle (34) du deuxième moyen de broyage (30), et dans lequel la deuxième denture extérieure forme les structures de guidage pour la matière à broyer.
  3. Dispositif de broyage préalable (7) selon la revendication 2, dans lequel la largeur de dent des deuxièmes dents extérieures (37) augmente à partir d'une extrémité libre de la deuxième région partielle (35) dans la direction de la première région partielle (34) adjacente et/ou dans lequel la hauteur de dent des deuxièmes dents extérieures (37) diminue dans la direction de la première région partielle (34) adjacente.
  4. Dispositif de broyage préalable (7) selon la revendication 2 ou 3, dans lequel les côtés délimitant une surface extérieure (AF35) des dents extérieures (37) présentent un tracé courbe, l'un des côtés présentant en particulier une courbure plus forte.
  5. Dispositif de broyage préalable (7) selon l'une des revendications 2 à 4, dans lequel la denture extérieure de la première région partielle (34) du deuxième moyen de broyage (30) continue sur la surface extérieure (AF35) de la denture extérieure de la deuxième région partielle (35) du deuxième moyen de broyage (30).
  6. Dispositif de broyage préalable (7) selon l'une des revendications 2 à 5, dans lequel la deuxième région partielle (35) du deuxième moyen de broyage mobile en rotation (30) est conçue sous la forme d'un cône tronqué avec une surface de base de cône tronqué (GF) et d'une surface de couverture de cône tronqué (DF), et dans lequel la première région partielle (34) du deuxième moyen de broyage mobile en rotation (30) est conçue comme une région largement cylindrique avec une surface de base de cylindre (ZF), la surface de base de cône tronqué (GF) et la surface de base de cylindre (ZF) étant largement identiques et la région largement cylindrique (34) étant adjacente avec une surface de base de cylindre (ZF) à la surface de base de cône tronqué (GF) de la région en cône tronqué (35).
  7. Dispositif de broyage préalable (7) selon la revendication 6, dans lequel la région largement cylindrique (34) présente une première denture extérieure avec des premières dents extérieures (36) d'une première hauteur et largeur de dent, lesquelles sont conçues de façon à correspondre largement aux dents intérieures (26) de la denture intérieure du premier moyen de broyage (20), et dans lequel le premier moyen de broyage (20) et le deuxième moyen de broyage (30) sont agencés de telle façon que la denture extérieure de la région cylindrique (34) s'engage largement dans la denture intérieure du premier moyen de broyage (20) tout en formant la fente de broyage (S).
  8. Dispositif de broyage préalable (7) selon la revendication 6 ou 7, dans lequel le deuxième moyen de broyage (30) présente une deuxième denture extérieure avec des deuxièmes dents extérieures (37) dans la région d'une surface d'enveloppe extérieure (AF35) entre la surface de couverture de cône tronqué (DF) et la surface de base de cône tronqué (GF) de la région en cône tronqué, les deuxièmes dents extérieures (37) présentant une deuxième hauteur et largeur de dent supérieure à la première hauteur et largeur de dent des premières dents extérieures (36) dans la région cylindrique (34) du deuxième moyen de broyage (30).
  9. Dispositif de broyage préalable (7) selon la revendication 8, dans lequel la largeur de dent des deuxièmes dents extérieures (37) augmente à partir de la surface de couverture de cône tronqué (DF) de la région en cône tronqué (35) dans la direction de la région cylindrique (34) et/ou dans lequel la hauteur de dent des deuxièmes dents extérieures (37) diminue dans la direction de la région cylindrique (34), les côtés délimitant la surface extérieure (AF35) des dents extérieures (37) présentant en particulier une courbure, l'un des côtés étant en particulier conçu avec une courbure plus forte.
  10. Dispositif de broyage préalable (7) selon l'une des revendications 7 à 9, dans lequel la première denture extérieure de la région cylindrique (34) du deuxième moyen de broyage (30) continue sur la surface extérieure (AF35) de la deuxième denture extérieure de la région en cône tronqué (35) du deuxième moyen de broyage (30).
  11. Broyeur à billes, en particulier un broyeur à billes de mélangeur (1), comportant une entrée de matière à broyer (4), un récipient de broyage (2), une chambre de broyage (2R) et un dispositif de broyage préalable (7) selon l'une des revendications 1-10, dans lequel le dispositif de broyage préalable (7) est agencé entre l'entrée de matière à broyer (4) et la chambre de broyage (2R) et dans lequel l'anneau de broyage du dispositif de broyage préalable (7) est agencé dans le récipient de broyage (2).
EP14816109.4A 2013-10-14 2014-10-01 Dispositif de pré-broyage pour un broyeur à boulets ou un broyeur à agitateur et broyeur à boulets avec dispositif de pré-broyage Active EP3057710B1 (fr)

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DE201310111297 DE102013111297A1 (de) 2013-10-14 2013-10-14 Vorzerkleinerungsvorrichtung für eine Kugelmühle oder Rührwerkskugelmühle und Kugelmühle mit Vorzerkleinerungseinrichtung
PCT/DE2014/000492 WO2015055161A1 (fr) 2013-10-14 2014-10-01 Dispositif de prébroyage pour broyeur à boulets ou broyeur-agitateur à boulets équipé d'un dispositif de prébroyage

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EP3057710A1 EP3057710A1 (fr) 2016-08-24
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US11627836B2 (en) 2018-03-27 2023-04-18 Shenzhen Elemex Technology, Ltd Automatic grinder and grinding method thereof
EP3666382A2 (fr) 2018-12-12 2020-06-17 Hugo Nienhaus Raffinement facile à manipuler d'un biochar dans un dispositif de broyage à soutenabilité élevée de l'utilisation dans les aliments pour animaux et les médicaments
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RU2016118667A (ru) 2017-11-21
BR112016006741B1 (pt) 2021-07-13
PL3057710T3 (pl) 2018-08-31
DE102013111297A1 (de) 2015-04-16
US10471436B2 (en) 2019-11-12
CN105682805A (zh) 2016-06-15
CN105682805B (zh) 2018-11-23
JP6182671B2 (ja) 2017-08-16
BR112016006741A2 (pt) 2017-08-01
RU2644015C2 (ru) 2018-02-07
EP3057710A1 (fr) 2016-08-24
US20160199846A1 (en) 2016-07-14
JP2016536113A (ja) 2016-11-24
WO2015055161A1 (fr) 2015-04-23

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