EP3398685A1 - Dispositif pour broyage de produit - Google Patents

Dispositif pour broyage de produit Download PDF

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Publication number
EP3398685A1
EP3398685A1 EP17001798.2A EP17001798A EP3398685A1 EP 3398685 A1 EP3398685 A1 EP 3398685A1 EP 17001798 A EP17001798 A EP 17001798A EP 3398685 A1 EP3398685 A1 EP 3398685A1
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EP
European Patent Office
Prior art keywords
grinding
grinding container
cavity
container
sieve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP17001798.2A
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German (de)
English (en)
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EP3398685B1 (fr
Inventor
Harald Oberholz
Wolfgang Lautenbach
Michael Zendel
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.)
Mairec Edelmetallgesellschaft Mbh
Original Assignee
Mairec Edelmetallgesellschaft Mbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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Publication of EP3398685A1 publication Critical patent/EP3398685A1/fr
Application granted granted Critical
Publication of EP3398685B1 publication Critical patent/EP3398685B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • 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
    • B02C17/181—Bearings specially adapted for tumbling mills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/04—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with unperforated container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/04—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with unperforated container
    • B02C17/06—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with unperforated container with several compartments
    • B02C17/07—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with unperforated container with several compartments in radial arrangement
    • 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
    • B02C17/10—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with one or a few disintegrating members arranged in the container
    • 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
    • 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
    • B02C17/24—Driving mechanisms

Definitions

  • the invention relates to a device for comminuting ground material with a grinding container having in the axial direction opposite end faces, between which extends at least one sieve tray, which defines at least one annulus together with another sieve tray or also extending between the end faces outer wall, wherein the or an innermost sieve bowl delimits a grinding chamber in which grinding bodies are arranged, with a bearing for rotatably holding the grinding container on a foundation and with drive means for rotating the grinding container about a horizontal axis in a grinding direction.
  • the known device has a grinding container which is rotatably mounted about a horizontal axis.
  • the grinding container is cylindrical and has two in a plan view circular end faces, which are centrally connected to a respective pipe socket, which opens into the grinding chamber, so that grinding material on the respective pipe socket in the painting container on or can be performed.
  • Each pipe socket is rotatably supported by a rotary bearing on a foundation. Between the end faces extend a plurality of concentrically arranged sieve shells, which are each designed as a cylindrical wall with openings of constant size. The spaces lying between the sieve shells are referred to here as annular spaces.
  • the size of the sieve bowl openings decreases from sieve bowl to sieve bowl, wherein the outermost sieve bowl is finally designed as a fine-pored mesh sieve.
  • the innermost sieve bowl is mechanically stable and surrounds an inner grinding chamber in which about ten kilograms of grinding media are arranged.
  • One of the pipe socket of the grinding container is connected to an electric motor which surrounds the grinding container horizontal axis rotates.
  • the millbase introduced through the other pipe socket is smashed in the grinding chamber by the grinding media.
  • Sufficiently finely ground grinding material finally penetrates the outermost sieve tray and reaches a discharge funnel located below the grinding drum.
  • the EP 2 907 577 A1 discloses a ball mill, which also has a cylindrical grinding drum with pipe sockets at their end faces. Again, the grinding drum is rotatably supported at its pipe socket by a rotary bearing.
  • the ball mill disclosed therein is used for grinding liquid-solid mixtures and is designed for continuous operation.
  • a circular sieve plate is arranged in the grinding drum, which extends parallel to the end faces.
  • the grinding drum is equipped with Mit psychologyn that transfer the material to be ground from an inlet pipe socket through the screen plate to the other pipe socket, which serves as outlet pipe stub during a rotary movement of the grinding drum.
  • a device of the type mentioned at the outset which is also referred to as a screen ball mill, has been used for many years for the grinding of ground material, such as, for example, slag residues from incinerators or built-in furnace linings made of fireclay bricks.
  • ground material such as, for example, slag residues from incinerators or built-in furnace linings made of fireclay bricks.
  • the comminution of such furnace residues has proven to be useful from an economic point of view, especially when the slag or firebricks contain precious metals such as copper, gold or silver.
  • Such a screen ball mill is also used for comminuting the interior of catalytic converters for motor vehicles.
  • the device mentioned above has the disadvantage that the grinding container is not accessible from the outside.
  • the grinding container and in particular the inner sieve tray are exposed to heavy wear due to the heavy grinding media.
  • a maintenance opening in the grinding container itself would therefore result in an undesirable structural weakening of the grinding container.
  • the opening would also have to pass through at least one inner sieve shell, resulting in further difficulties.
  • An opening on one of the end faces of the grinding container is also not possible because there the pivot bearing is arranged for rotatably holding the end-side pipe socket. Because of the lack of accessibility, it is not possible to monitor the progress of the crushing process by simple inspection. Furthermore, blockages or damage due to residues inside the grinding container are not detected or recognized late. The removal of the residues is complicated.
  • the object of the invention is therefore to provide a device of the type mentioned, which can be easily monitored and maintained.
  • the bearing has rotatably mounted rollers and the grinding container rests on the rollers, wherein on at least one end face a maintenance opening is formed, which allows an insight into the grinding container.
  • the rotary bearing is realized by rollers, which are arranged rotatably in the foundation, for example.
  • the grinding container rests on the rollers. Spacing rotary bearings on the front sides of the grinding container have become superfluous according to the invention.
  • the maintenance opening is suitably so large that residues from the grinding container through the maintenance opening can be easily removed. Such residues are, for example, not crushable sheets or the like. If such residues have settled in the grinding container, they can be removed within the scope of the invention simply and quickly through the maintenance opening from the grinding container and in particular from the grinding chamber. Long downtime due Maintenance is thus avoided within the scope of the invention.
  • the inspection also makes it possible to quickly detect blockages of the openings of the innermost sieve bowl and remove them if necessary. Also, the condition of the media can be easily monitored so that damaged media can be replaced before major damage occurs. In addition, it can also be recognized whether a grinding process has lasted long enough to comminute the material to be ground to the desired extent.
  • grinding media are preferably spherical Mahlköper into consideration and in particular grinding balls, which are made of steel. In the context of the invention, however, differently shaped grinding media and / or materials can also be used.
  • At least two sieve shells and preferably three sieve shells are provided, which likewise extend between the end faces.
  • the sieve shells are designed as hollow cylindrical and arranged concentrically to one another. With the exception of an outermost sieve bowl all sieve shells on receding openings, which is slightly larger than the openings of the respective sieve tray and allows falling back of ground material in the grinding chamber.
  • a driving element is provided, which is arranged in the immediate vicinity of the return opening and rotatably connected to the rotatable grinding container.
  • the contour of the maintenance opening is basically arbitrary.
  • the maintenance opening is designed rectangular, wherein the height and width of the rectangle each vary between 20 cm and 70 cm. Deviating from the maintenance opening is circular, with its diameter varies between 20 cm and 70 cm.
  • a maintenance flap which is set up for quick opening and closing of the maintenance opening.
  • the maintenance flap is articulated, for example, on the front side.
  • It can also consist of a transparent material, so that a continuous insight into the grinding container is made possible.
  • the wear of the device according to the invention is reduced.
  • the operation of the device can be made more effective, so that in comparison to a device according to the prior art, a larger yield of separated, finished ground millbase can be achieved.
  • the device according to the invention is preferably used for recovering or, in other words, recycling precious metals.
  • the noble metals are contained, for example, in electrical waste, furnace linings, catalysts or the like.
  • This raw material to be ground is introduced into the grinding container, for example, by means of a feed opening provided in one of the end faces. This is done, for example, batchwise so in batch mode. In a different embodiment of the invention, however, a continuous operation of the device according to the invention is possible.
  • the grinding media shatters the material to be ground. Grist with sufficiently small grain size penetrates through the sieve shells and is finally discharged from the grinding container.
  • a commercial electric motor is suitable.
  • the electric motor advantageously drives at least one of the rollers on which the grinding container rests.
  • the grinding container is thus placed in a rotational movement about the horizontal axis.
  • the horizontal axis extends in an end view expediently through the center of the preferably circular-shaped end faces.
  • the sieve shells usually have openings that allow the passage of regrind with a sufficiently small grain size.
  • the openings of a Sieschale are preferably all the same size. With increasing distance of the sieve bowl to the horizontal axis, ie to the outside, the openings of Sieve bowl to sliding cup but smaller.
  • the grinding container is delimited by an outer wall, which likewise extends between the end faces and has no openings.
  • the outer wall bounded with the adjacent radial inner sieve bowl, which has the smallest openings, an outer annulus.
  • the bearing comprises four rollers.
  • Four rollers allow optimal weight distribution of the preferably hollow cylindrical grinding container and therefore a particularly low maintenance rotation.
  • the bearing has at least two axes of rotation extending in the axial direction, which are each rotatably connected to rollers, wherein the axes of rotation are arranged on different sides of the grinding container.
  • the rollers which are connected to the same axis of rotation, are coupled together. This mechanical coupling of the rollers further increases the mechanical stability of the device.
  • roller as used herein should in principle include all rotatably mounted means having a circular outer contour. Conveniently, each roller has on its outside, with which it rests against the grinding container, on a material for increasing the friction between the roller and the grinding container.
  • the material is, for example, an elastomer, a rubber or the like.
  • a role may in the context of the invention also consist of several individual roles and be executed, for example, as a pair of rollers.
  • the end faces are formed as end plates and each define a cavity which is connected via an inlet opening with the grinding container.
  • the end disks are preferably annular and have a circular outer contour in an end view.
  • the thickness of the end plates is preferably between 10 cm and 50 cm, wherein the cavity in the radially outer region the end plates is formed.
  • the maintenance opening is provided in the center or the center of at least one end plate.
  • the cavity is connected via the inlet opening with the grinding container.
  • the cavity of each end plate is equipped with an outlet opening which faces away from the grinding container and over which the ground material can be removed from the cavity again.
  • the cavity conveyor means for example suitably curved entrainment bars, which are connected to the inner wall of the cavity of the end plates, or guide channels formed which transport the material to be ground from the inlet opening to the outlet opening, from where the material passes into appropriate further processing units.
  • the cavity of a discharge end plate are connected via the inlet opening with a first annulus and the cavity of a feed end disc with a second annulus.
  • a first annular space has coarse conveying means which, during a rotation of the grinding container in a discharge direction which is opposite to the grinding direction, transfer material to be ground into the cavity of the discharge end disk.
  • Another preferably radially outwardly lying annular space which is connected to a feed end disk is equipped with fine conveying means, which transfer during a rotation of the grinding container in the grinding direction millbase in the cavity of the feed end disk.
  • a user of the device according to the invention can reverse the rotation of the grinding container, whereupon the grind stock which has been reduced to a smaller extent, for example, from the first or innermost annulus via the discharge end disk discharged outside.
  • the roles so the function of the end plates can also be replaced, so that the fine material to be ground is guided over the end plate, which is opposite to the feed end, over which the material to be ground is introduced into the grinding chamber.
  • the discharge of only roughly crushed ground material would then take place at the feed end disk.
  • the cavity of the feed end disk would be connected to the first or innermost annulus via the input port, with the input port of the opposite end disc forming an input port in the outermost annulus. The funding in the ring and cavities would be adjusted accordingly.
  • the first, ie innermost, annular space has coarse conveying means which, during a rotation of the grinding container in the grinding direction, transfer material to be ground into the cavity of the discharge end disk, another preferably further outwardly situated annular space having fine conveying means which, during a rotation of the grinding container in the grinding direction Transfer regrind into the cavity of the feed end disk.
  • the inlet opening of the cavity of the discharge end plate can be closed by means of an externally operable flap.
  • the grinding container can be rotated in only one direction.
  • the material to be ground is first brought into the grinding chamber and the grinding container is set in rotation.
  • the flap of the inlet opening of the discharge end plate initially remains closed, so that the simultaneous discharge of coarse and fine ground material at the discharge end plate is avoided.
  • the flap is provided with openings corresponding to the openings of the outermost sieve tray. Finely ground material can then be tapped off at both end disks when the flap is closed. If the output of fine grinding material clears significantly, the flap can be opened from the outside, so that now the coarse material to be ground is discharged from the grinding container via the discharge end plate. Also in this variant, the roles or the function of the end plates can be reversed, so that the discharge of the coarse material to be ground at the loading end takes place.
  • an end plate has a central feed opening, which is set up for feeding ground material into the grinding chamber.
  • only one of the end plates is equipped with a maintenance opening.
  • the other end disk, the feed end disk has a feed opening, which is used to feed the ground material into the grinding chamber.
  • the feeding can take place, for example, by means of suitable feeding means.
  • the supply means may be designed to be pivotable in order to be able to use the charging opening as a service opening if required.
  • the grinding container rests only on its end disks on the rollers.
  • the end plates therefore form with their radial outer sides raceways on which the rollers roll.
  • the portion of the grinding container extending between the mechanically stable end disks, that is to say the tray shells with the exception of the innermost sieve tray, and the outer wall can be made mechanically less rigid. In this way, the production of the device according to the invention is simplified, which sets a further cost advantage.
  • the sieve shells each form openings of constant size, the size of the opening decreasing in the radial direction from sieve bowl to sieve bowl.
  • the outer wall has no openings.
  • the grain size in the outermost annular space is significantly smaller than in the or the radially inner annular spaces.
  • FIG. 1 shows an embodiment of the device 1 according to the prior art.
  • the device 1 has a cylindrical grinding drum 2, which is set up for rotation about a horizontal axis 3.
  • the grinding drum 2 has an input end face 4 and an output end face 5.
  • Between the input end face 4 and the output end face 5 extend an innermost sieve tray 6, an intermediate sieve tray 7 and a fine sieve tray 8, which are arranged one behind the other in the radial direction.
  • an inlet pipe socket 9 is provided which limits a feed opening 10.
  • an outlet pipe socket 11 is provided in the middle of the output end face 5.
  • a pivot bearing 12 which includes two pivot bearing supports 13.
  • the rotary bearing supports 13 hold the grinding drum 2 to the pipe socket 9 and 11 rotatably mounted on a foundation 14.
  • an electric motor 15 is provided, which is connected to the outlet pipe socket 11.
  • the grinding drum 2 is arranged in a housing consisting of sheet metal, of which in FIG. 1 only a lower housing funnel 16 is shown.
  • Each sieve tray 6, 7 and 8 has identical openings, for example in the form of slots, holes or meshes, which are designed for the passage of grains of a certain size. The size of these openings decreases from sieve shell to sieve shell from inside to outside.
  • the openings of the innermost sieve tray 6 are adapted for the passage of grains having a size of 20 mm, the intermediate sieve tray 7 for the passage of grains having a size of 5 mm and the fine sieve tray 8 for the passage of grain sizes of 1 mm.
  • the innermost sieve tray 6 is mechanically stable. It defines a grinding chamber 17 in which grinding media 18 are arranged.
  • the intermediate sieve tray 7 and in particular the fine sieve tray 8 have a lower mechanical strength compared to the innermost sieve tray 6.
  • a figuratively not shown Zwangsmit Spotifyelement is arranged in the form of a longitudinal beam, which also limits the respective annulus or in other words.
  • the co-driving element is non-rotatably connected to the grinding container 2 and thus rotates during operation of the device 1. In this way, each time the grinding container 2 rotates, grinding material is carried along by the co-driving element.
  • the sieve shells 6 and 7 do not completely surround the annular spaces. Rather, each sieve tray 6, 7 shortly before the Zwangsmit Spotifyelement receding openings, which are slightly larger than the openings of the sieve shells 6, 7. Ground material that has not fallen through the sieve shells 6 or 7, in this way returns to the grinding chamber 17 and is comminuted again by the grinding media 18.
  • Finely comminuted regrind finally passes the fine sieve tray 8 and is discharged via the housing hopper 16 for further processing.
  • the grinding container of the prior art device is not accessible from the outside.
  • the crushing process can not therefore be monitored by simply looking into the grinding container. This may result in crushing being too short or longer than necessary.
  • the yield of sufficiently finely ground and discharged millbase is reduced within a predetermined period of time. Furthermore, blockages or damage inside the grinding container are not detected or only very late.
  • FIG. 2 shows an exemplary embodiment of the device 19 according to the invention, which also has a grinding container 2.
  • the end faces of the device according to the invention are designed as end plates, which are referred to here with reference to the material guide as Beschickungsendusion 20 and discharge end plate 21.
  • the said end plates 20 and 21 each define in their interior a cavity 22, which on its side remote from the grinding chamber 17 has an outlet opening 23 and 24, respectively.
  • the outlet opening 23 of the feed end disk 20 surrounds a circular feed opening 10 in a circular shape.
  • the outlet opening 24 of the discharge end disk 21 is guided around a maintenance opening 25 arranged centrally in the discharge end disk 21, which can be closed by a maintenance flap 26.
  • an innermost sieve tray 6, an intermediate sieve tray 7 and a fine sieve tray 8 extend between the feed end disk 20 and the discharge end disk 21, an innermost sieve tray 6, an intermediate sieve tray 7 and a fine sieve tray 8 extend.
  • the innermost sieve tray is configured sufficiently thick to provide the necessary mechanical strength for the grinding space 17, in which arranged about ten kilograms grinding media 18 are arranged.
  • Each sieve tray 6, 7 and 8 again has uniform openings, for example in the form of slots, holes or meshes, which are designed for the passage of grains of a certain size. The size of these openings decreases again from Siebschale to Siebschale from inside to outside.
  • the openings of the innermost sieve tray 6 are adapted for the passage of grains having a size of 20 mm, the intermediate sieve tray 7 for the passage of grains having a size of 5 mm and the fine sieve tray 8 for the passage of grain sizes of 1 mm.
  • An outer wall 38 has no openings and serves as an outer housing, which closes the grinding container 2 to the outside. Between the innermost sieve tray 6 and the intermediate sieve tray 7, a first annular space 27 is defined. The intermediate sieve bowl 7 and the fine sieve bowl 8 define a second annular space 28. A third annular space 29 extends between the fine sieve bowl 8 and the outer wall 38.
  • the feed end disk 20 has an inlet opening 30 which connects the third annular space 29 with its cavity 22.
  • the discharge end disk 21 delimits an inlet opening 31, which connects the cavity 22 formed by it to the first annular space 27.
  • each a figuratively not shown Zwangsmit Spotifyelement is arranged for example in the form of a longitudinal beam, which also limits the respective annular space 27, 28 or in other words terminates.
  • the compulsory driving element is non-rotatably connected to the grinding container 2 and thus rotates during operation of the device 19. In this way, each time the grinding container 2 rotates, material to be ground is carried along by the positive driving element.
  • the sieve shells 6 and 7 do not completely limit the annular spaces 27, 28. On the contrary, the sieve shells 6, 7 have receding openings shortly before the positive driving element, which openings are slightly larger than the openings of the sieve shells 6, 7. Regrind, not by the Sieve shells 6 or 7 has fallen, thus passes back into the grinding chamber 17 and is comminuted again by the grinding media 18.
  • conveying means are arranged, which convey during a rotation of the grinding container 2 in a grinding direction millbase, which has passed into the third annular space 29, to the inlet opening 30 of the cavity 22 of the feed end disk 20.
  • the cavity 22 is also equipped with conveying means, which convert the ground material to the outlet opening 23. From there, the ground material passes into a fall channel 32 and can be further processed.
  • Conveying means are designed for example as entrainment strips, channels or the like.
  • the device 19 has a deviating from the device 1 pivot bearing 12, which has rollers 34 which connected in the illustrated embodiment via a rotation axis 35 with each other are.
  • FIG. 2 only one axis of rotation 35 with two rollers 34 can be seen. This is arranged on the front of the grinding container 2.
  • On the back so exactly aligned with the illustrated axis of rotation 35, however, a further axis of rotation is arranged, the figurative is therefore not shown.
  • the second axis of rotation points also two rotatably connected with her roles on. Overall, four rolls are thus provided, on which the grinding container 2 rests with its feed end disk 20 and its discharge end disk 21.
  • the loading end disk 20 and the discharge end disk 21 each have raceways 36 on which the rollers 34 roll.
  • One of the axes of rotation 35 is driven by an electric motor 15 as a drive means for rotation.
  • the drive means may also have chains, sprockets or the like, which engage directly on the grinding drum.
  • guide rollers 37 are provided which are arranged with play for the respective end plate 20 and 21 respectively.
  • the millbase is introduced into the grinding chamber 17 via the feed opening 10.
  • the drive means for example an electric motor, rotate the grinding container 2 in the grinding direction, so that the grinding bodies 18 comminute the material to be ground.
  • Sufficient comminuted material passes finally through the Feinsiebschale 8 in the outermost third annulus 29.
  • the funding of the third annulus 29 convey the finely ground material in the cavity 22 of the feed end 20. From there it enters the case channel 32 and can be further processed as desired be used to isolate existing precious metals from the finely ground millbase.
  • the direction of rotation of the grinding container 2 is changed.
  • the conveying means of the first annular space 27 convey the only slightly comminuted material to be ground into the inlet opening 31 of the cavity 22 of the discharge end disk 21, from where it enters the discharge hopper 33.
  • the discharge end is not mounted on a roller 34, but in a rolling or sliding bearing.
  • the grinding container 2 is expediently rotationally symmetrical, and preferably has a substantially cylindrical outer contour. Such a grinding container 2 may also be referred to as a grinding drum.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
EP17001798.2A 2017-05-05 2017-10-30 Dispositif pour broyage de produit Active EP3398685B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202017002406.3U DE202017002406U1 (de) 2017-05-05 2017-05-05 Vorrichtung zum Zerkleinern von Mahlgut

Publications (2)

Publication Number Publication Date
EP3398685A1 true EP3398685A1 (fr) 2018-11-07
EP3398685B1 EP3398685B1 (fr) 2020-04-01

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EP (1) EP3398685B1 (fr)
DE (1) DE202017002406U1 (fr)

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CN108501210A (zh) * 2018-04-03 2018-09-07 中国矿业大学 一种有机纤维增强复合材料的纤维分散磨和纤维分散方法
CN111495563A (zh) * 2020-05-15 2020-08-07 徐州易尚饰家装饰工程有限责任公司 一种用于水泥磨出料篦板的篦缝结构
CN114887716A (zh) * 2022-05-12 2022-08-12 锐华硅业(大关)有限公司 一种压裂石英砂膨化塑形智能机器人

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DE202017002406U1 (de) 2017-05-05 2017-06-29 Mairec Edelmetallgesellschaft Mbh Vorrichtung zum Zerkleinern von Mahlgut
DE102017208145A1 (de) * 2017-05-15 2018-11-15 Affinia Engineering GmbH Siebkugelmühle zur Aufbereitung von metallhaltigem Grobmaterial
CN110976035A (zh) * 2019-11-25 2020-04-10 衡阳阳光陶瓷有限公司 一种多腔室分加工的陶瓷原料球磨机
CN111174207A (zh) * 2020-01-15 2020-05-19 鲍仙林 一种基于齿轮旋转进行智能排渣的垃圾焚烧装置
CN115845989A (zh) * 2022-11-25 2023-03-28 华能国际电力股份有限公司上安电厂 一种适用于600mw机组磨煤机粉位监测的测量管
CN116532202A (zh) * 2023-04-20 2023-08-04 长江师范学院 一种粒度可调式研磨装置

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CN108500819A (zh) * 2018-04-03 2018-09-07 中国矿业大学 一种混凝土或沥青混合料骨料粒形修饰装置
CN108501210A (zh) * 2018-04-03 2018-09-07 中国矿业大学 一种有机纤维增强复合材料的纤维分散磨和纤维分散方法
CN111495563A (zh) * 2020-05-15 2020-08-07 徐州易尚饰家装饰工程有限责任公司 一种用于水泥磨出料篦板的篦缝结构
CN114887716A (zh) * 2022-05-12 2022-08-12 锐华硅业(大关)有限公司 一种压裂石英砂膨化塑形智能机器人
CN114887716B (zh) * 2022-05-12 2023-06-27 锐华硅业(大关)有限公司 一种压裂石英砂膨化塑形智能机器人

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