EP2203254A1 - Schwingmühle und reinigungsverfahren für schwingmühle - Google Patents
Schwingmühle und reinigungsverfahren für schwingmühleInfo
- Publication number
- EP2203254A1 EP2203254A1 EP08803949A EP08803949A EP2203254A1 EP 2203254 A1 EP2203254 A1 EP 2203254A1 EP 08803949 A EP08803949 A EP 08803949A EP 08803949 A EP08803949 A EP 08803949A EP 2203254 A1 EP2203254 A1 EP 2203254A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- discharge
- discharge chute
- nozzles
- grinding
- cleaning method
- 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
Links
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
- 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
- B02C17/186—Adding fluid, other than for crushing by fluid energy
-
- 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 grinding unit, wherein the grinding unit has a particular lowerable grinding floor and a discharge floor, further comprising the discharge floor has a circulating discharge chute, for conveying the ground material to or through a discharge element.
- Vibratory mills or grinding units of the type in question are known and are used for example for grinding a sample of pourable, granular material in the course of preparation of the sample for desired analyzes.
- the discharge of shredded ground material takes place after a lowering of the grinding ground by means of a vibrating or tumbling movement of the grinding unit into the discharge chute.
- the comminuted material to be ground is also moved under the influence of centrifugal forces radially outward into the surrounding discharge chute.
- a disadvantage is felt that it can also come, depending on the chosen regrind, to an insufficient and not always reproducible discharge of the ground material. Only by way of example cementitious regrind is addressed here.
- the remainder of the ground material removed during the blowing can also be removed by means of the discharge channel, whereby a more constant and, in particular, more homogeneous grinding result can be achieved compared to the described conventional technique or procedure, in particular with regard to lesser fluctuations of the discharge quantities (or smaller deviations from the amount of millbase used) as well as fine granularity and reproducibility.
- only one exhaust nozzle is provided on the circumference of the discharge chute, it is possible to arrange these preferably at the discharge element on the circumference of the grinding floor or the discharge chute. to arrange the position.
- the fluid supplied through the discharge nozzle for cleaning preferably compressed air or nitrogen
- a plurality of exhaust nozzles are arranged on the circumference of the discharge chute for blowing out the discharge chute and that they are spaced at least approximately regularly, more preferably even along the circumference at least approximately uniformly, along the circumference of the discharge chute.
- the intensity and the uniformity of the cleaning effect can be further improved by this measure. This design also ensures that the discharge chute is cleaned along its entire circumference.
- the regular or even distribution of the position of the discharge nozzles extends along the entire or at least the substantially entire circumference of the discharge chute. It is furthermore preferred that along the circumference of the discharge chute one or more, preferably at least approximately evenly spaced, tangentially oriented blow-off nozzles are provided and / or that along the circumference of the discharge chute one or more, in particular at least approximately evenly spaced, radially oriented Purging nozzles are provided.
- tangentially oriented discharge nozzles and / or radially oriented discharge nozzles each have a bore formed in the discharge base of the vibrating mill and preferably have a connection bore for a fluid connection, which has a larger, preferably internal thread compared to the nozzle inlet side ,
- the discharge chute may preferably be designed sloping towards the discharge element.
- Such sloping training is preferably included. provided at least in the region of the gutter bottom, but can also detect other cross-sectional areas depending on the channel design and in particular channel cross-section. Due to the sloping configuration, the conveyance of the ground material from the discharge tray via the discharge chute to the discharge element is improved. This also facilitates the achievement of a constant, homogeneous grinding result, in particular with regard to smaller fluctuations in the discharge quantities (or smaller deviations from the amount of ground material used) as well as fine granularity and reproducibility.
- 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 chute in the gutter end region has an opening, wherein the opening may preferably lie in the gutter bottom and / or in the region of the radially outer gutter wall.
- the channel bottom is located in the channel start region below the surface of the grinding ground.
- 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 by virtue of the fact that the discharge tray can be blown out, so that it can be cleaned further 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.
- blowing nozzles which point tangentially into the discharge chute or which open out can be provided, which support the transport of the ground material from the discharge tray in the direction of the delivery element.
- one or more, preferably evenly spaced, tangentially oriented discharge nozzles may be provided.
- tangentially oriented exhaust nozzles are aligned so that their opening into the discharge chute nozzle outlet has a pointing in the direction of the discharge chute Ausblas therapiesskomponente.
- the expression "in the direction of slope 11 here means in the direction in which the discharge channel or at least its channel bottom leads continuously or discontinuously downwards.
- the channel gradient and the cleaning fluid blown in by means of the tangentially oriented blow-off nozzles move in the same direction, ie jointly support the transport of sample or regrind residues in the discharge chute to their discharge element provided at the lowest channel section.
- blowing nozzles are arranged in the discharge floor or to this for the loading of the discharge gap and for blowing out of grinding material in 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 can be provided along the circumference of the discharge chute.
- the radially oriented exhaust nozzles lead into a ventilation duct which extends in the circumferential direction of the discharge chute, preferably continuously or closed, wherein the ventilation duct by means of a cross-section reduced in comparison to him, preferably annular in Circumferentially extending, gap is connected to a channel adjacent to the gutter gutter.
- the said annularly extending gap may in this case extend substantially perpendicularly or at least inclined to a reference plane spanned by the grinding floor, the lower gap end being adjacent to the radially outer boundary wall of the discharge chute or the discharge chute chamber, preferably at the upper edge region of the boundary wall.
- the cleaning fluid for example compressed air or nitrogen
- the cleaning fluid which is supplied with overpressure by means of one or more radially oriented discharge nozzles, can first be distributed in the circumferential direction by means of the said ventilation channel be blown from there through the cross-section reduced annular gap along the entire circumference or desired peripheral portions from above against the radially outer boundary wall of the discharge chute.
- the cleaning fluid thus flows in cross section from the uppermost point of the outer edge down into the discharge chute chamber.
- a high degree of homogenization of the flow can be achieved even with a small number of radially oriented exhaust nozzles relative to the circumferential direction.
- the flow when entering the discharge chute chamber instead of the previously radial flow direction may have a virtually complete or at least substantially vertical direction of flow directed along the outer boundary wall. It is preferred that by means of the ventilation chamber a uniform along the entire circumference of the Austragsrinne even downwards, in particular schleier erartig flowing air flow, which can remove dirt from the radially outer boundary wall and the wall of the discharge chute. In this respect, it is understood that the fluid does not need to be supplied to the ventilation duct by radially oriented exhaust nozzles, but these nozzles could also have a different orientation.
- pairs assigned to quasi certain circumferential regions of the discharge chute are each formed from one tangential and one radially oriented blow-off nozzle, whereby again preferably such pairs are distributed along the preferably entire groove circumference and are evenly spaced from one another in the circumferential direction.
- a functional one Embodiment is seen in the fact that viewed along the circumference of the discharge trough viewed in the direction of the gradient, a respective radially oriented discharge nozzle is arranged behind a respective tangentially oriented discharge nozzle.
- the compressed air (or cleaning fluid) blown into the discharge chute chamber by means of the radially oriented blow-off nozzles is transported onwards by the tangentially oriented blow-off nozzles in the direction of the fall.
- the ventilation chamber causes no complete homogenization of the radially supplied fluid in the circumferential direction, it comes due to the described direction sequence of the exhaust nozzles that the leaked from the radially oriented exhaust nozzles or from the gap compressed air (or. Cleaning fluid) is "pushed" by the effluent from the tangentially oriented discharge nozzle pressure fluid quasi in the direction of fall under detachment and entrainment of sample or Mahlgutresten.
- the nozzle outlet of tangentially oriented Ausblasdüsen at a smaller vertical distance from the channel bottom in the Austragsrinne emanates as the fluid outlet of the ventilation duct or its gap end, preferably the nozzle outlet of tangential oriented outflow nozzles, based on the height of the discharge cross-section, opens into the lower cross-sectional half.
- the discharge chute is formed sloping from an elevated gutter start to a gutter end lying lowest, there is even the possibility, for example, that the tangentially oriented blow-out nozzles in follow their vertical position of the channel slope, so that the vertical distance between its nozzle outlet and the channel bottom on all tangentially oriented exhaust nozzles is the same size.
- the exhaust nozzles can be arranged along the circumference in mutually equal height.
- said nozzle exit is located at the upper end of this radius of curvature or only slightly above it or discharges into the discharge channel.
- the discharge element is connected by means of an opening with the gutter end region of the discharge chute, preferably at the lowest point of the gutter bottom.
- the discharge element is connected to a suction device for extracting the cleaning fluid, in particular air or nitrogen, or at least temporarily connectable.
- 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 comes against the upper piston portion of comparatively smaller diameter, wherein it is provided in particular that the insertion recess fits geometrically, in particular laterally positively, to the collar is.
- this be of relatively larger diameter at the lower piston section by means of at least one Piston guide ring is guided 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.
- the invention relates to a cleaning method for a vibrating mill, preferably for a disc vibrating mill, with a grinding unit, wherein the grinding unit comprises a preferably lowerable grinding floor and a discharge floor and the discharge floor has a circulating discharge chute for conveying the material to be ground to or through a discharge element.
- the invention has for its object to provide an advantageous cleaning method, with which in particular the disadvantages described can be avoided as much as possible.
- the object is achieved according to the invention and essentially in conjunction with the feature that the discharge chute is cleaned by means of a fluid, preferably by means of compressed air or nitrogen and / or by shaking.
- a fluid preferably by means of compressed air or nitrogen and / or by shaking.
- the discharge tray in particular the discharge chute
- blow-out nozzles oriented tangentially and / or radially to the discharge chute can be used.
- tangentially oriented discharge nozzles and further, in particular radially oriented, discharge nozzles can be pressurized simultaneously with fluid, preferably with compressed air or nitrogen. It is also preferred that a vibrating mill is used, the discharge chute is designed sloping down to the discharge.
- An expedient development of the method also provides that the discharge chute is oriented tangentially to its circumference
- Blowing nozzles is blown out in the direction of their direction of fall.
- the cleaning fluid blown in the direction of deflection of the discharge chute be blown into the lower cross-sectional half of the discharge chute.
- the radially outer boundary wall of the discharge chute be blown from top to bottom with a cleaning fluid, such as compressed air or nitrogen. This can preferably be done using further, in particular radially with respect to the Rinnen nen experiencess oriented blow-off nozzles, which preferably open into a running along the Austragsrinnen previouslyes ventilation duct and about in an annular gap.
- a development can also lie in the fact that fluid is sucked out of the discharge chute through the discharge element, the discharge element being connected by means of an opening to the gutter end region of the discharge chute, preferably at the lowest point of the gutter bottom.
- the extracted air quantity may be equal to or per unit time slightly larger than the amount of air blown.
- the purging is carried out as a pulse-like blowing.
- the grinding soil is sealed relative to a side wall of the discharge chute.
- the cleaning method according to the invention may preferably be carried out using a vibrating mill having individual or further features as described above.
- FIG. 1 is a sectional view through a fiction, contemporary vibratory mill according to a preferred embodiment along section line I-I in Figure 3 with lowered grinding floor ..;
- FIG. 1a shows the arrangement from FIG. 1, but with the grinding floor comparatively raised for the grinding operation;
- Figure 2 is a side view of a discharge of the vibrating mill in an individual view.
- FIG. 3 shows the plan view for this purpose with a view to a discharge chute
- FIG. 5 shows the sectional view along the line V-V in Fig. 3.
- FIG. 6 shows the sectional view according to the line VI-VI in Fig. 3.
- Fig. 12 is a sectional view taken along section line XII-XII in Fig. 3;
- FIG. 1 shows a cross section through the upper region of a vibrating mill 1 according to the invention, according to a preferred embodiment, by means of which rather also the cleaning method according to the invention is executable.
- 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. On the underside during the grinding operation, this is followed by a substantially circular grinding bottom 5. 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 enables a lateral relative movement of grinding ring 6 and grinding stone 7 both relative to one another and with respect to the grinding wall 4.
- a housing ring 10 adjoins the grinding wall 4 radially outside and which is screwed to the underside with a housing base 11 which forms a discharge base 12 and is thereby connected to a drive flange 13.
- a housing base 11 which forms a discharge base 12 and is thereby connected to a drive flange 13.
- To the drive flange may be any, commonly used for vibrating mills and therefore not connected in the figures with oscillating drive.
- the housing ring 10 is screwed to a housing cover 14, which is centered in a form-fitting manner to the housing ring when placed on it by means of an annular projection 32.
- the grinding wall 4 is form gleichgehaltert the inside 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 piston head 18 facing the grinding base 5 is reduced in diameter relative to the piston section 17.
- the piston walls 19 and 20 of the piston portions 17 and 18 overlap, leaving a vertically upward opening, annular Einfahrraus Principleung 21. In this a coaxial with the cylinder portion 15 underside of the outlet bottom 12 trained, sealingly against the upper piston portion 18 passing collar 22.
- the grinding floor 5 can be raised or lowered via a fluidic control of the piston 16.
- a pressure chamber 33 in the form of an annular cavity is formed between the cylinder part 15 and the piston 16. This is an annular groove formed on the underside of the discharge floor 12 into which the upper edge 34 of the lower piston section 17 engages as the annular projection of the piston 16 from the underside.
- 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 forms a limit stop with a plate 53 in the lower travel position shown in FIG.
- the grinding base 5 acting on the underside, acts sealingly against the grinding wall 4 at the edges by the piston 16. This situation is illustrated in FIG. 1a.
- a discharge gap 23 is circulated around, through which the comminuted material passes through a further annular discharge channel 24 due to further vibration excitation.
- the grinding base 5 is circumferentially covering with a ring seal 39 is provided. 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 top view, that the discharge chute 24 is designed to continuously descend, except for a wall-like separation region 26 'between a chute start region 40 and a chute end region 41, in which the chute bottom 42 is lower than in the chute start 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, wherein the boundary 44 of the discharge chute 24 (see also FIGS. 4 and 12) has an opening 45 in the region of the outer chute wall through which the ground material passes the discharge element 25 or passes through this. 1, also shows that the opening 45 adjoining 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, three blow-off nozzles 27 are provided on the delivery floor 12 for blowing out tangentially and three blow-off nozzles 28 are provided for radial blowing.
- the distance between each two identical nozzles is a multiple greater than the distance between two closely adjacent nozzles 27 and 28.
- 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.
- the vibrating mill 1 has distributed in the exemplary embodiment selected on the circumference of Austragsrinne 24 arranged a plurality, in the concrete example six, exhaust nozzles 27, 28.
- the respective positions of the exhaust nozzles along the circumference of the Austragsrinne Fig. 3 can be seen. It can be seen that the three tangentially oriented exhaust nozzles 27 are spaced equidistant from each other along the circumference, so that the one between two adjacent each angle formed at hard positions is 120 degrees. The same applies to the three radially oriented exhaust nozzles 28, so that there is a uniform position distribution for both nozzle types.
- 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 blow-off nozzles 27 can also be seen in FIG. 3 and comprises on the exit side a comparatively narrow bore 55 opening directly into the discharge chute 24 and a connecting bore 56 adjoining the latter at the nozzle inlet end, in comparison with a larger cross section and provided with an internal thread the example.
- visible connection 47 which may be connected, for example. With a compressed air line, can be connected.
- the longitudinal contour of the radially oriented exhaust nozzles 28 can be seen in FIGS. 3 and 13.
- 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.
- the nozzle-outlet-side bores 57 of the radially oriented outlet nozzles 28 open into a ventilation channel 59 which extends in the circumferential direction U (see FIG. 3) of the discharge channel. At this closes at the radially inner edge down to a vertically extending gap 60 at.
- the width of the ventilation channel 59 is a multiple of the width of gap 60.
- the diameter of the bore 57 is a multiple of the width of gap 60.
- the discharge chute 61 At its bottom joins the gap 60, the discharge chute 61 at , which is bounded below and on the sides of the discharge chute 24. It is also clear that the lower gap end 62 is adjacent to the radially outer boundary wall 63 of the discharge chute 24 at its upper end.
- each one tangentially and one radially oriented discharge nozzle 27, 28 in the circumferential plane of FIG. 3 only encloses a circumferential angle in the range of approximately 5 to 10 degrees (depending on the method of measurement), ie significantly less than that the aforementioned distance angle of 120 degrees between similar exhaust nozzles.
- the tangentially oriented exhaust nozzles 27 in the discharge floor 12 are all in the same absolute verti cal height, ie have due to the slope of the discharge a different vertical distance from the channel bottom 42.
- tangentially oriented exhaust nozzles 27 each in mutually the same vertical, ie the Ze 3 perpendicular, distance to the channel bottom 42 into the discharge chute 24 open.
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
- Cleaning In General (AREA)
- Cleaning By Liquid Or Steam (AREA)
Description
Claims
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007043940 | 2007-09-14 | ||
| DE102007057020 | 2007-11-27 | ||
| DE102008035008A DE102008035008A1 (de) | 2007-09-14 | 2008-07-25 | Schwingmühle und Reinigungsverfahren für Schwingmühle |
| PCT/EP2008/061982 WO2009037160A1 (de) | 2007-09-14 | 2008-09-10 | Schwingmühle und reinigungsverfahren für schwingmühle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2203254A1 true EP2203254A1 (de) | 2010-07-07 |
| EP2203254B1 EP2203254B1 (de) | 2011-07-20 |
Family
ID=40042947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP08803949A Active EP2203254B1 (de) | 2007-09-14 | 2008-09-10 | Schwingmühle und reinigungsverfahren für schwingmühle |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2203254B1 (de) |
| AT (1) | ATE516883T1 (de) |
| DE (1) | DE102008035008A1 (de) |
| WO (1) | WO2009037160A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113289999A (zh) * | 2021-05-08 | 2021-08-24 | 贵阳铝镁设计研究院有限公司 | 一种磨样盒清洁装置及其清洁方法 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE791276A (fr) | 1972-04-15 | 1973-03-01 | Herzog Gottfried | Concasseur oscillant pour broyer, homogeneiser et melanger des solides,produits chimiques et les produits dont ils decoulent |
| 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 DE102008035008A patent/DE102008035008A1/de not_active Ceased
- 2008-09-10 AT AT08803949T patent/ATE516883T1/de active
- 2008-09-10 EP EP08803949A patent/EP2203254B1/de active Active
- 2008-09-10 WO PCT/EP2008/061982 patent/WO2009037160A1/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2009037160A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009037160A1 (de) | 2009-03-26 |
| ATE516883T1 (de) | 2011-08-15 |
| EP2203254B1 (de) | 2011-07-20 |
| DE102008035008A1 (de) | 2009-04-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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