EP2185287B1 - Vibro-broyeur - Google Patents
Vibro-broyeur Download PDFInfo
- Publication number
- EP2185287B1 EP2185287B1 EP08803948A EP08803948A EP2185287B1 EP 2185287 B1 EP2185287 B1 EP 2185287B1 EP 08803948 A EP08803948 A EP 08803948A EP 08803948 A EP08803948 A EP 08803948A EP 2185287 B1 EP2185287 B1 EP 2185287B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- discharge
- base
- groove
- plunger
- vibration grinding
- 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.)
- Active
Links
- 238000000227 grinding Methods 0.000 title claims abstract description 87
- 238000007789 sealing Methods 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 3
- 208000028659 discharge Diseases 0.000 claims 14
- 230000002093 peripheral effect Effects 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 8
- 238000011161 development Methods 0.000 abstract description 2
- 238000007664 blowing Methods 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 238000010926 purge Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- 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
- B02C17/14—Mills in which the charge to be ground is turned over by movements of the container other than by rotating, e.g. by swinging, vibrating, tilting
-
- 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
- B02C19/16—Mills provided with vibrators
Definitions
- the invention relates to a vibrating mill, in particular disc vibrating mill, with a milling unit, wherein the milling unit has a lowerable grinding floor and a discharge floor.
- Vibratory mills or grinding units of the type in question are, for example DE 8713602U are known and used for example for grinding a sample of pourable, granular material in the course of preparation of the sample for desired analyzes.
- the discharge chute is continuously circumferentially sloping, with the exception of at least one step-shaped transition, in particular with the exception of at least one wall-like separation region between a gutter start region and a gutter end region, in which the gutter bottom is lower than in the gutter region.
- the discharge chute is preferably formed in the form of a helix.
- the discharge chute extends along the predominant extent of the grinding floor, in particular along the substantially entire or even the entire circumference of the grinding floor.
- the sloping channel bottom or optionally the entire discharge chute can follow the inclined course of a helical or spiral turn or a section of such a turn.
- the discharge chute follows the outline of a circular line along the predominant circumference of the grinding floor and extends in a groove end area deviating outwardly from the circular line, in particular running tangentially to the circular line.
- the boundary of the discharge channel has an opening in the channel end region, wherein the opening can preferably lie in the channel bottom and / or in the region of the radially outer channel wall. It is also preferred that the channel bottom is located in the channel start region below the surface of the grinding ground.
- the discharge chute is adjacent to the grinding floor in the radial direction or overlapping this in projection.
- the discharge tray is preferably fixedly connected, in particular in one piece, with a cylinder part, in which a piston used for lowering or raising the grinding floor, for example further pneumatically / fluidically actuated piston, is guided.
- a further improvement with regard to the grinding result is achieved in that the discharge tray can be blown out, so further can be cleaned using a fluid, for example with air, but also by means of a fluid such as nitrogen.
- a fluid for example with air, but also by means of a fluid such as nitrogen.
- residual regrind is blown in the direction of the discharge chute.
- exhaust nozzles pointing tangentially into the discharge chute which support the transport of the ground material from the discharge tray in the direction of the discharge element.
- one or more, preferably evenly spaced, tangentially oriented discharge nozzles may be provided.
- blowing nozzles are arranged in the discharge floor or, if appropriate, arranged for impinging the discharge gap and for blowing out ground material into the discharge chute.
- blowing nozzles in particular the further blowing nozzles acting on the discharge gap, are directed radially inward.
- one or preferably a plurality of preferably uniformly spaced, radially oriented blow-off nozzles may be provided.
- the piston has two piston sections of different diameters, wherein the piston walls of the piston sections overlap while leaving a vertically opening recess for a collar.
- the collar is formed coaxially to the cylinder part on the underside of the outlet bottom and sealingly against the upper piston portion of comparatively smaller diameter, wherein it is provided in particular that the insertion recess is geometrically, in particular laterally form-fitting, adapted to the collar. With respect to the piston, it is preferred that this is guided at the lower piston portion of comparatively larger diameter by means of at least one piston guide ring in the cylinder part.
- the grinding wall is held positively.
- the grinding soil is sealed relative to a side wall of the discharge chute. This more preferably both in the lowered and in the raised position of the same.
- Fig. 1 shows a cross section through the upper portion of a vibrating mill 1 according to the invention according to a preferred embodiment.
- This is a so-called disc vibrating mill whose grinding unit 2 represents an assembly that can be excited into vibrations by a separate oscillating drive.
- the grinding unit 2 includes a grinding chamber 3, which is externally bounded by a cylindrical grinding wall 4. At this closes below during the grinding operation, a substantially circular grinding soil 5 at. On this are as grinding elements a grinding ring 6 and a millstone 7. Between the grinding wall 4 and Mahlring 6 a grinding gap 8 is formed. Another grinding gap 9 is established between the grinding ring 6 and the grinding stone 7. This allows a lateral relative movement of Mahlring 6 and millstone 7 both to each other and with respect to the grinding wall. 4
- To the grinding wall 4 includes radially outside a housing ring 10, which is screwed on the underside with a discharge base 12 forming a housing base 11 and thereby connected to a drive flange 13.
- a drive flange may be any, commonly used for vibrating mills and therefore not connected in the figures with oscillating drive.
- the housing ring 10 On the upper side, the housing ring 10 is screwed to a housing cover 14, which is centered in a form-fitting manner to the housing ring during placement by means of an annular projection 32.
- the grinding wall 4 is form gleichgehaltert inside wall of the housing ring 10, held in the axial direction between an upper, radially inwardly projecting collar of the housing ring 10 and the underside by a provided support ring 29.
- a cylinder part 15 is formed on the underside.
- a piston 16 is guided by means of a piston guide ring 31, which enters the bottom of the grinding base 5 on the underside. Via a fluidic control of the piston 16, the grinding base 5 can be raised or lowered over it.
- the piston 16 has two successive piston sections 17 and 18 in axial extension. These have different diameters, wherein the grinding base 5 facing piston portion 18 is reduced in diameter relative to the piston portion 17.
- the piston walls 19 and 20 of the piston sections 17 and 18 overlap, leaving a vertically upwardly opening, annular Einfahrraus Principleung 21. In this emerges a coaxial with the cylinder portion 15 below the outlet bottom 12 formed, sealingly against the upper piston portion 18 passing collar 22.
- a pressure chamber 33 in the form of an annular cavity is formed between the cylinder part 15 and the piston 16.
- the pressure chamber 33 is connected via a line 35 with a connecting piece 36 in connection, so that can be applied to lower the grinding floor 5, an overpressure.
- the piston 16 has at its lower end face a radially inner annular projection, which in the in FIG. 1 shown lower travel position forms a limit stop with a plate 53. In this case remains radially adjacent to the annular projection serving as a further pressure chamber 50 annular gap.
- This is connected via a line 54 with a connecting piece 52 in connection, so that can be applied to raise the grinding floor 5 to the pressure chamber 50, a pressure.
- the pressure chamber 50 continues in the piston interior 51 in the embodiment shown.
- the collar 22 in the exemplary embodiment, as can also be seen from the figures, is the ring section 22, so that in this context the terms collar and ring section are also interchangeable.
- the grinding base 5 which is acted on at the underside by the piston 16, comes sealingly against the grinding wall 4 at the edge Fig. 1a shown.
- a discharge gap 23 is circumferentially released, by which further vibrational excitation the comminuted material passes into an annular discharge channel 24 in plan.
- the grinding floor 5 is circumferentially covering provided with a ring seal 39. This is supported in the region of its upper end radially inward against a cylinder wall of the grinding floor 5 and in the region of its lower end end face against the discharge floor 12 from.
- the Austragsrinne 24 is circumferentially sloping down to a discharge element 25, this further helically continuous falling continuously, with the exception of a step-shaped transition 26, between the gutter start region lowest height and the discharge element 25 associated Rinnenend Scheme largest height.
- FIG. 3 shows in a plan view that the discharge chute 24 is formed continuously continuously sloping, with the exception of a wall-like separation region 26 'between a groove start region 40 and a gutter end portion 41, in which the groove bottom 42 is lower than in the gutter region 40.
- the level difference of the gutter bottom 42 between the gutter starting region and the gutter end region can be, for example, 10 mm, but may also assume different values.
- the discharge chute 24 extends following a circular line. Only in the gutter end region 41 does the discharge chute 24 deviate outward from the circular line along a tangential line 43, the boundary 44 of the discharge chute 24 (cf. FIGS.
- FIG. 12 whose Cut something of FIG. 1 deviates (cf. FIG. 3 ), also shows that the opening 45 adjacent to the discharge element 25 is located in the gutter end region 41 at the lowest point of the gutter bottom 42.
- the discharge floor 12 or the discharge chute 24, moreover also the discharge gap 23 resulting after lowering the grinding floor 5, can be blown out by means of compressed air.
- blow-off nozzles 27 and 28 are provided, wherein the blow-off nozzles 27 point tangentially into the discharge chute 24, this further in the direction of inclination of the discharge chute 24.
- the blow-off nozzles 28 are directed radially, in particular for blowing out or for cleaning the area of the discharge gap 23, for example with compressed air.
- FIG. 3 illustrates that in the example chosen on the discharge tray 12 each three blow nozzles 27 are provided for tangential blowing and three blow nozzles 28 for radial blowing. In this case, along the circumference of the distance between each two identical nozzles by a multiple greater than the distance between two closely adjacent nozzles 27 and 28.
- a connection 46 for a radial exhaust nozzle 28 and a connection 47 for a tangential exhaust nozzle 27 are shown.
- the piston 16 is fixed at its upper end wall 48 by means of a plurality of circumferentially distributed screws 49 with the grinding base 5.
- the entire device is essentially tight. It takes place at the same time on the Austragselement 25 an active suction instead.
- the extracted air quantity may be equal to or per unit of time also slightly larger than the amount of air blown. It is also a pulse-like bubbles possible.
- the grinding unit 2 of the vibrating mill 1 can be supported via a sliding guide and further optionally have speed-changing means.
- Fig. 3 show the vibrating mill 1 in the exemplary embodiment selected distributed on the circumference of the discharge channel 24 has a plurality, in the concrete example six, exhaust nozzles 27, 28.
- the respective positions of the exhaust nozzles along the circumference of the Austragsrinne are Fig. 3 refer to.
- the three tangentially oriented purging nozzles 27 are spaced equidistantly from each other along the circumference so that the angle formed between each two adjacent positions is 120 degrees, respectively.
- the blow-off nozzles 27 and 28 are each formed as recesses or bores in the discharge floor 12.
- the contour of the tangentially oriented exhaust nozzles 27 can also be schematic Fig. 3 be removed and includes on the exit side directly into the Austragsrinne 24 opening, relatively narrow bore 55 and an adjoining the nozzle inlet side, compared with cross-sectional larger and provided with internal connection bore 56, to which the example.
- visible connection 47 which may for example be connected to a compressed air line, can be connected.
- the longitudinal contour of the radially oriented exhaust nozzles 28 is the Figures 3 and 13 removable.
- this contour also comprises a relatively narrower bore 57 at the nozzle exit side and a connecting bore 58, which is provided with an internal thread, adjoining the nozzle inlet side, into which the connection 46, for example a compressed air supply line, is connected by screwing.
- Fig. 13 is further shown that the nozzle outlet side holes 57 of the radially oriented exhaust nozzles 28 open into a ventilation duct 59, which in the circumferential direction U (see. Fig. 3 ) of the discharge chute extends. At this closes at the radially inner edge down to a vertically extending gap 60 at.
- the diameter of the bore 57 is a multiple of the width of gap 60.
- the discharge chute 61 at the bottom and at the Pages of the discharge chute 24 is bounded.
- the lower gap end 62 is adjacent to the radially outer boundary wall 63 of the discharge chute 24 at its upper end.
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
Claims (15)
- Broyeur vibrant (1), en particulier broyeur vibrant à disques, avec une unité de broyage (2), dans lequel l'unité de broyage (2) présente un fond de broyage (5) abaissable et un fond de décharge (12),
caractérisé en ce que le fond de décharge (12) présente par ailleurs une rigole de décharge périphérique (24) pour acheminer le matériau broyé vers ou à travers un élément de décharge (25) et
en ce que la rigole de décharge (24) se présente en pente vers l'élément de décharge (25). - Broyeur vibrant selon la revendication 1, caractérisé en ce que la rigole de décharge (24) se présente en pente de manière continue en périphérie, à l'exception d'au moins un passage (26) en particulier de forme étagée, notamment à l'exception d'au moins une zone de séparation de type paroi (26') entre une zone de début de rigole (40) et une zone de fin de rigole (41), dans laquelle le fond de rigole (42) se trouve plus bas que dans la zone de début de rigole (40).
- Broyeur vibrant selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que la rigole de décharge (24) s'étend le long du pourtour principal du fond de broyage (5), en particulier le long du pourtour sensiblement ou presque total du fond de broyage (5).
- Broyeur vibrant selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que la rigole de décharge (24) s'étend le long du pourtour principal du fond de broyage (5) en suivant dans le plan une ligne circulaire et en s'écartant dans une zone de fin de rigole (41) de la ligne circulaire vers l'extérieur, en particulier s'étendant tangentiellement à la ligne circulaire.
- Broyeur vibrant selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que la limite (44) de la rigole de décharge (24) présente une ouverture (45) dans la zone de fin de rigole (41) dans la zone de la paroi de rigole externe et/ou du fond de rigole (42).
- Broyeur vibrant selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que le fond de rigole (42) se situe également dans la zone de début de rigole (40) sous la surface du fond de broyage (5).
- Broyeur vibrant selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que la rigole de décharge (24) est adjacente dans la direction radiale au fond de broyage (5) ou coupe celui-ci en projection.
- Broyeur vibrant selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que le fond de décharge (12) est relié de manière fixe, en particulier d'un seul tenant, à une partie de cylindre (15), dans laquelle est guidé un piston (16) utilisé pour abaisser le fond de broyage (5).
- Broyeur vibrant selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que le piston (16) présente deux sections de piston (17,18) de diamètre différent et en ce que les parois de piston (19, 20) des sections de piston (17,18) se chevauchent en laissant un évidement d'insertion (21) s'ouvrant verticalement pour un collet (22).
- Broyeur vibrant selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que le collet (22) est formé coaxialement à la partie de cylindre (15) du côté inférieur du fond de décharge (12) et pressé de manière étanche contre la section de piston supérieure (18), dans lequel il est prévu en particulier que l'évidement d'insertion (21) soit adapté géométriquement, notamment latéralement par adaptation de forme, au collet (22).
- Broyeur vibrant selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que le piston (16) présente deux sections de piston (17,18) de diamètre différent et en ce que le piston (16) est guidé sur la section de piston (17) d'un diamètre relativement plus grand au moyen d'un anneau de guidage de piston (31) dans la partie de cylindre (15).
- Broyeur vibrant selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que des joints étanches (37) sont aménagés sur la section de piston (17) dans la direction axiale du piston sur un côté ou les deux côtés de l'anneau de guidage de piston (31) pour étancher la partie de cylindre (15)
- Broyeur vibrant selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que le collet (22) et la paroi de la partie de cylindre (15) forment des limitations latérales d'un espace de pression (33) s'étendant de manière annulaire, dans lequel se prolonge le bord supérieur (34) de la section de piston (17).
- Broyeur vibrant selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que la paroi de broyage (4) est maintenue par adaptation de forme.
- Broyeur vibrant selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que le fond de broyage (5) est étanché par rapport à une paroi latérale de la rigole de décharge (24).
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007043940 | 2007-09-14 | ||
DE102007057020 | 2007-11-27 | ||
DE102008035009A DE102008035009A1 (de) | 2007-09-14 | 2008-07-25 | Schwingmühle |
PCT/EP2008/061981 WO2009037159A1 (fr) | 2007-09-14 | 2008-09-10 | Vibro-broyeur |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2185287A1 EP2185287A1 (fr) | 2010-05-19 |
EP2185287B1 true EP2185287B1 (fr) | 2011-05-11 |
EP2185287B8 EP2185287B8 (fr) | 2011-09-28 |
Family
ID=40032473
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08803948A Active EP2185287B8 (fr) | 2007-09-14 | 2008-09-10 | Vibro-broyeur |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2185287B8 (fr) |
AT (1) | ATE508796T1 (fr) |
DE (1) | DE102008035009A1 (fr) |
WO (1) | WO2009037159A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107890912A (zh) * | 2017-11-10 | 2018-04-10 | 安徽金思源生物科技有限公司 | 一种生物燃料生产用粉碎装置 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110694769B (zh) * | 2019-09-25 | 2024-03-22 | 镇江市科瑞制样设备有限公司 | 一种新型制样粉碎机 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU852354A1 (ru) * | 1979-07-13 | 1981-08-07 | Предприятие П/Я В-8857 | Устройство дл обработки дисперсногоМАТЕРиАлА |
DE8713602U1 (de) * | 1987-10-09 | 1988-02-04 | Pfaff Rohrpost GmbH, 5600 Wuppertal | Schwingmühle |
DE102006042825A1 (de) | 2006-09-08 | 2008-03-27 | PFAFF AQS GmbH automatische Qualitätskontrollsysteme | Mahleinheit mit Kühleinrichtung |
DE102007017131A1 (de) | 2006-09-08 | 2008-03-27 | PFAFF AQS GmbH automatische Qualitätskontrollsysteme | Schwingmühle mit Gleitführung |
DE102006042823A1 (de) | 2006-09-08 | 2008-03-27 | PFAFF AQS GmbH automatische Qualitätskontrollsysteme | Schwingmühle und Verfahren zum Betrieb einer Schwingmühle |
-
2008
- 2008-07-25 DE DE102008035009A patent/DE102008035009A1/de not_active Withdrawn
- 2008-09-10 WO PCT/EP2008/061981 patent/WO2009037159A1/fr active Application Filing
- 2008-09-10 AT AT08803948T patent/ATE508796T1/de active
- 2008-09-10 EP EP08803948A patent/EP2185287B8/fr active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107890912A (zh) * | 2017-11-10 | 2018-04-10 | 安徽金思源生物科技有限公司 | 一种生物燃料生产用粉碎装置 |
Also Published As
Publication number | Publication date |
---|---|
WO2009037159A1 (fr) | 2009-03-26 |
DE102008035009A1 (de) | 2009-05-20 |
EP2185287A1 (fr) | 2010-05-19 |
EP2185287B8 (fr) | 2011-09-28 |
ATE508796T1 (de) | 2011-05-15 |
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