EP3969180A1 - Vorrichtung zur zerkleinerung von einsatzmaterial sowie verwendung eines kühlungsgehäuses an der vorrichtung - Google Patents
Vorrichtung zur zerkleinerung von einsatzmaterial sowie verwendung eines kühlungsgehäuses an der vorrichtungInfo
- Publication number
- EP3969180A1 EP3969180A1 EP20726346.8A EP20726346A EP3969180A1 EP 3969180 A1 EP3969180 A1 EP 3969180A1 EP 20726346 A EP20726346 A EP 20726346A EP 3969180 A1 EP3969180 A1 EP 3969180A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- cooling
- grinding
- flow path
- cooling housing
- 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.)
- Pending
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
- B02C17/1815—Cooling or heating devices
Definitions
- the invention relates to a device for comminuting input material in a vibratory disk mill.
- the invention also relates to the use of components for cooling a grinding system of the vibratory disk mill.
- the invention relates to a device and a method or a use according to the preamble of the respective independent or subsidiary claim.
- Vibratory disc mills are used for the fine comminution of solids, in particular for the purpose of providing the comminuted or ground solids for material analysis (e.g. X-ray fluorescence analysis XRF, atomic absorption spectroscopy AAS, near infrared spectroscopy NIR, inductively coupled plasma mass spectrometry ICP-MS).
- material analysis e.g. X-ray fluorescence analysis XRF, atomic absorption spectroscopy AAS, near infrared spectroscopy NIR, inductively coupled plasma mass spectrometry ICP-MS.
- Vibrating disc mills usually have a grinder, which is arranged in a housing between a material feed and a material discharge.
- the grinder includes, for example, a pot with a lid and grinding bodies, which can be designed as stones, disks, lenses or rings, for example.
- Vibratory disc mills can grind the solids based on pressure, impact and / or friction.
- Vibrating disc mills generate a rotary vibratory movement of the center of gravity of the grinding chamber without rotating the chamber.
- This oscillating movement can be generated by a resilient mounting with an unbalanced mass drive or by eccentric shafts. Mills with unbalanced masses have a spring deflection that is dependent on the speed variable eccentric radius; Mills with eccentric shafts have a structurally constant radius.
- This oscillating movement guides the grinding tools into a rolling movement on the circumference of the grinding vessel.
- Alternative vibration methods lead to deliberately chaotic movements of the grinding tools as well as to random impact loads between the tools and between the tools and the grinding vessel.
- the feed material is crushed on the side wall of the grinding vessel by means of the grinding stone by a rolling movement; Below the grinding stone towards the grinding chamber floor, the grinding takes place by means of a rotary-push movement.
- DE 43 43 742 A1 describes a vibrating disc mill with a grinding vessel with an air-cooled outer cooling jacket through which air flows from bottom to top.
- EP 2 061 600 B1 and EP 2 063 992 B1 each describe a vibrating mill with a housing ring in which cooling grooves are provided in such a way that the housing can be cooled by means of a circulating cooling medium.
- DE 2 063 812 A describes a grinding process (in particular a horizontally arranged vibrating ball mill) which technically differs from the grinding process of vibrating disk mills, which is also reflected in the construction of the mill.
- the object of the invention is to provide a vibratory disk mill with the features described at the beginning, in which the cooling can be optimized, in particular with a view to minimizing the previously described adverse effects of temperature differences within the mill, especially in vibratory disk mills with eccentric shaft drives , especially with regard to tensions between the individual components.
- a vibrating disk mill device set up for comminuting feedstock, in particular feedstock with a particle size of less than 20 mm, in particular set up for grinding the feedstock to particle sizes of less than 75 ⁇ m or less than 10 ⁇ m, with: a mill housing which has a system limit of the environment for a material feed and for a material discharge of the vibrating disk mill device; a grinding system arranged in the mill housing such that it can oscillate, with a grinding chamber and with at least one grinding stone arranged movably in the grinding chamber, the grinding system being arranged on the material flow path between material feed and material discharge; wherein the vibrating disk mill device has a cooling housing arranged inside the mill housing, the grinding system or at least the grinding chamber at least partially delimiting or enclosing (inner or inner) cooling housing, wherein the cooling housing defines at least one flow path for cooling medium, in particular for gaseous cooling medium (preferably Air).
- gaseous cooling medium preferably Air
- the grinding chamber can be efficiently cooled by a very simple structural measure, in particular with minimal additional operating costs.
- the cooling housing can for example as The box or casing creates a partitioning off from the environment, in particular in the case of a predefinable enclosed cooling volume, with air, for example, being usable as the cooling medium, so that no separate cooling medium circuit has to be provided.
- the grinding system and the cooling housing are spaced apart and the flow path for cooling medium runs between the grinding system and the cooling housing.
- the cooling housing does not have to be moved with the grinding system, only the grinding system is moved within the cooling housing for the grinding process, the cooling housing remains relatively calm, apart from the vibrations which are transmitted to the entire device. Less moving mass means less energy loss and less wear.
- the cooling medium comes more directly to the grinding system, the layer thickness for the heat transfer is reduced.
- the full-surface cooling achieves a more homogeneous temperature control.
- the feed material preferably has a particle size of less than 20 mm.
- the particle size of the feedstock is particularly preferably between 20 mm and 75 ⁇ m.
- the feedstock is preferably ground to particle sizes of less than 75 ⁇ m, particularly preferably to particle sizes of less than 10 ⁇ m.
- the starting material is preferably ground to particle sizes of more than 0.5 ⁇ m, particularly preferably to particle sizes of more than 1 ⁇ m, very particularly preferably to particle sizes of more than 2 ⁇ m.
- particle size is to be understood as the mean particle size, larger and smaller particles being found with decreasing probability the further the size deviates from the mean size.
- cooling of the grinding unit can be ensured by flushing the grinding system with cooling medium, that is, direct cooling of the grinding system or the moving, grinding components of the mill.
- the invention is based on the concept of housing or at least partially sealing off the grinding system with regard to heat transport by convection.
- the cooling housing is advantageously arranged or constructed in such a way that the grinding chamber can be temperature controlled by cooling based on heat exchange by convection.
- a convective heat transfer in a predefinable cooling volume also enables, in particular, a comparatively variable regulation or temperature control, for example based on the temperature and / or the throughput (volume flow) of the cooling medium.
- Guiding of the cooling medium, in particular an air duct, around the grinding chamber can in particular be ensured by inlets and outlets of the cooling housing that are arranged at least approximately centrally with respect to the diameter of the grinding chamber. It has been shown that the cooling according to the invention, in particular, promotes or even enables continuous use of the mill, in particular when there is a high turnover of feedstock.
- the inner housing can extend around the components of the grinding chamber, in particular with the maximum possible flow path along the respective component, in the sense of a complete flow around the grinding chamber by means of cooling medium.
- the inner housing is preferably designed to be comparatively close fitting, that is to say guided comparatively close to the contour of the grinding mechanism or grinding system.
- the inner geometry or inner contour of the cooling housing is preferably designed to correspond to the outer contour of the grinding system or specifically the grinding chamber.
- the cooling housing can advantageously be composed of individual segments or panels which, for example, are pivotably connected to one another in one piece (gas tightness) or can also be coupled to one another by individual separate individual segments by means of hinges or axes of rotation.
- the cooling housing (inner housing) can, for example, be placed over the grinding chamber.
- the cooling housing does not have to be completely closed circumferentially, but can, for example, have an open underside, in particular with regard to flanging the housing onto a base plate, or with regard to an arrangement that overlaps (overlaps) the base plate in the height direction.
- Lateral gaps between the grinding unit and the housing are preferably small or minimized, in particular in order to enable the flow around the individual components according to a movement path that is as precisely predetermined as possible.
- an inner collar can optionally be provided in a cover of the cooling housing, in particular with a guide such that the cooling medium is guided over the cover of the grinding chamber for as long as possible.
- the flow path can also be routed redundantly multiple times along the same contour.
- the cooling housing preferably encloses the grinding unit tightly, in particular in order to be able to use the cooling medium effectively.
- the cooling housing can be designed to correspond geometrically to the grinding chamber. A particularly effective cooling can be ensured thanks to high speeds, a lot of surface contact and preferably also thanks to several deflections (turning points in the flow path).
- the cooling medium in particular air, can in particular be conducted from below to the bottom of the grinding chamber, in the sense of a direct flow for the purpose of maximum heat transport or maximum temperature difference without any intermediate components.
- the cooling medium can in particular also be guided in countercurrent against the direction of flow of the feedstock.
- the cooling medium is discharged in particular in the middle of the grinding chamber.
- a flow path for the cooling medium preferably runs on one or more semicircular paths around the grinding chamber, each with a central start and end point.
- Axial fans can preferably be provided at the central start and / or end points.
- the cooling medium can be provided pre-cooled upstream of the grinding system, especially when the mill is set up in particularly warm surroundings.
- the device can have a cooling unit set up for pre-cooling the cooling medium, the cooling unit being arranged outside the grinding chamber, preferably below the grinding chamber.
- a Temperature differences in the range from 5 K to 10 K [Kelvin] can already produce noticeable effects.
- a compromise which can be regulated by means of a logic unit, of flow volume flow and cooling power upstream of the grinding chamber can be set or regulated.
- dry mineral substances can be used as substances to be ground (feedstock).
- the material can be fed with particles up to 10 mm [millimeters] in size.
- the ground product can, for example, be ground down to below 10 ⁇ m [micrometers].
- the mill housing can also be formed, at least in sections, by a support frame (frame) of the mill.
- cooling according to the invention in particular air cooling, thanks to the free flow of the cooling medium between the movable components, a comparatively large surface can be cooled, so that the cooling is / becomes particularly effective.
- cooling by means of liquid, in particular water can only take place at a fewer number of locations and only in narrowly predefined areas / sections.
- Spraying liquid cooling medium has also proven to be more disadvantageous or less efficient than the cooling according to the invention and, in particular, due to the associated technical complexity, is not to be seen as an alternative.
- a / the base plate of the mill can also be referred to as a base plate. All the forces from the grinding system are usually bundled on this plate, with uneven residual forces being able to be passed on to the machine frame (support frame).
- the inner housing of the mill can be divided into dismountable / mountable segments. The segmentation can in particular also enable access to the grinding unit without having to remove the components from the frame / frame of the mill. This favors a time-efficient change of the grinding tools.
- the inner housing is divided into four wall elements, four ceiling segments and two labyrinth covers.
- the inner housing is preferably built very closely around the grinding system, in particular with the effect that the cooling medium (cooling air) directed from below onto the grinding vessel can be guided closely around the components of the mill (cooling flow path at least approximately corresponding to the contour of the grinding system).
- the cooling medium is discharged, for example, via a central opening in the top of the inner housing, in particular in order to guide the cooling medium closely and true to the contour above the grinding system. This provides a good cooling effect.
- the pressure loss can be kept at a comparatively low level.
- a labyrinth guide and / or at least one inner collar is preferably provided in the cover.
- the labyrinth guide can optimize the flow path and / or the dwell time of the cooling medium or, for example, serve for subsequent setting or fine adjustment of the flow path. Furthermore, a soundproofing function can also be provided by means of the labyrinth guide.
- the inner housing preferably has an inner soundproofing lining, for example provided by a coating and / or by foam material. This also provides the advantageous side effect of minimizing the noise emission of the mill by means of the inner housing. Thanks to optimized cooling, negative effects of any linings with regard to heat transport can be minimized.
- Milling vessels usually have a cylindrical wall and a flat cover and base.
- the inner housing can (inside) be designed geometrically corresponding to this contour and thereby define a geometrically corresponding cooling medium flow path.
- the following variants of the millstones that can be used are usually practicable: cylindrical millstone; ring-shaped grinding stone with additional cylindrical grinding stone; lenticular millstone.
- Two fans with a total delivery rate of approx. 800 to 1,500 m 3 / h [cubimeters per hour] cool the grinding system at a load of five to 15 grinding processes per hour and at approx. 0.5 to 3 kg of feedstock.
- the grinder and the fans can, for example, run continuously (continuously).
- Air for example, is provided as the cooling medium, in particular for reasons of cost.
- the ambient temperature in particular room temperature
- the ambient temperature can be specified as the expedient inflow temperature, so that cooling of the cooling medium on the inlet side is not necessary.
- the outlet temperature is, for example, a temperature in the range of approx. 10 ° C [degrees Celsius] or 10 K [Kelvin] above the inflow temperature, for example a temperature of 30 ° C.
- the arrangement according to the invention can also be described as a housing-in-housing arrangement, in particular since the inner housing can also fulfill a protective function.
- the housing-in-housing arrangement enables functional integration into the cooling housing, for example also with regard to sound insulation or improved protection against foreign bodies.
- full sound insulation can be provided, in particular in the area of all inner sides or inner lateral surfaces of the inner housing.
- the at least one flow path for cooling medium runs within the cooling housing which encloses or surrounds at least the grinding chamber. This also enables forced convection along the longest possible sections of the outer surfaces of the grinding chamber.
- the at least one flow path for cooling medium between the inlet and outlet of the cooling housing along the grinding chamber has at least two or at least three turning points. In this way, for example, retaining brackets or bearings or balancing weights can also be flowed around, that is to say components of the grinding system via which heat can be dissipated. This also favors at least indirect cooling of the grinding chamber.
- the cooling housing defines a circumferential cooling area (enveloping cooling jacket) around the entire grinding chamber.
- the cooling housing defines a cooling area running in the longitudinal direction completely along the entire grinding chamber (cooling jacket oriented in the direction of material flow or against the direction of material flow). This enables a comprehensive or effective heat exchange over a comparatively large area.
- the cooling housing has an inlet and an outlet for the cooling medium which are each arranged at least approximately centrally in the cooling housing. Apart from a simple structural design, this also enables very practical flow guidance. Thanks to an arrangement that is as central as possible, the cooling medium can easily be distributed homogeneously over all heat exchange surfaces.
- the arrangement of a discharge valve may oppose a strictly central arrangement.
- the at least one flow path for cooling medium within the cooling housing surrounding at least the grinding chamber can run in one section in the vertical direction or in at least two sections in opposite vertical directions.
- This type of flow reversal can also increase the residence time and optimize the heat transport phenomena. Depending on acceptable pressure losses, it can be more advantageous to guide the cooling medium without vertical reversal in only one direction along the grinding chamber.
- a preferred routing of the cooling medium can be described as follows: The cooling medium flowing in from below is divided in the radial direction and guided around the grinding chamber. Above or above the grinding chamber, the cooling medium or the flow paths of the cooling medium are bundled / merged again, and the cooling medium is preferably discharged from the cooling housing via a single outlet.
- the at least one flow path for cooling medium between the inlet and outlet of the cooling housing is subdivided into at least two flow path sections running at least in sections in a parallel arrangement, or in a radially arranged lateral section of the grinding chamber in at least two flow path sections running at least in sections in parallel arrangement, the at least two flow path sections are / are recombined upstream of the outlet. This allows the cooling to be optimized.
- the cooling housing has an inlet and an outlet, a labyrinth guide and / or at least one inner collar being / are provided at the outlet in front of the outlet, in particular a labyrinth guide comprising at least two additional turning points of the flow path.
- a labyrinth guide can be constructed, for example, with an inner guide for deflecting the flow paths in the manner of silencers.
- the cooling housing has an inlet and an outlet, the inlet being designed for directed guidance of the cooling medium onto an underside or onto a floor of the grinding chamber.
- the inlet and the outlet of the cooling housing are arranged opposite one another, in particular centrally or at least approximately centrally in relation to a diameter of the grinding chamber, in particular opposite in the axial direction, with at least one fan in or on the inlet and / or outlet Flow path is arranged.
- several fans can be provided next to one another, which are preferably arranged together in the radial direction at least approximately in the middle with respect to the grinding chamber.
- the grinding system has a base plate, the base plate forming a support or bearing for at least one fan arranged in the flow path. This also results in further structural advantages.
- the vibrating disk mill device has, for example, a grinding drive which is held / fixed on a / the base plate of the grinding system.
- a / the grinding drive of the vibrating disk mill device can for example be arranged eccentrically with respect to the grinding chamber.
- a / the grinding drive of the vibrating disk mill device is coupled, for example, to at least one eccentrically arranged drive shaft, optionally also to two or to three eccentric drive shafts.
- the cooling housing is configured as a five-sided housing shell or housing segment unit that is open at the bottom.
- the cooling housing can, for example, have a square, rectangular, square or at least approximately circular base area or cross-sectional contour.
- the housing can be constructed in a simple manner and can also be easily integrated into the structural design of the mill.
- the cooling housing can, for example, on tabs or projections or Supports of the mill housing or the base plate be attached, in particular with its underside.
- the cooling housing can, for example, be connected to a / the base plate of the grinding system in a form-fitting and / or force-fitting manner, in particular screwed.
- the cooling housing together with a / the base plate of the grinding system, can form a unit that is sealed off in all directions, in particular in that the housing seals off the grinding chamber at least in all horizontal directions and also from above.
- the base plate can fulfill a housing function to define a bottom of the cooling housing (base plate as part of an internal housing, in particular to define a cooling area or cooling jacket around the grinding chamber).
- the cooling medium can optionally be conducted through the cooling housing by negative pressure (suction guidance) or by overpressure (pressure guidance).
- suction guidance negative pressure
- pressure guidance overpressure guidance
- the geometry of the flow paths and the pressure conditions can be influenced.
- At least one fan is set up to provide a flow rate in the range of 100 m 3 / h to 2,000 m 3 / h upstream and / or downstream of the grinding chamber in the flow path.
- the fan can also be adjustable.
- An advantageously broad control range can be opened up for the forced convection.
- At least one fan with a flow rate in the range from 200 to 600 m 3 / h or 300 to 800 m 3 / h is used. It has been shown that with effective guidance of the cooling medium, good cooling effects can be achieved from 100 m 3 / h. A cooling capacity of over 1000 m 3 / h can be particularly advantageous, especially in continuous use, depending on the size of the mill.
- the cooling housing can be positioned in a predefinable, in particular adjustable, relative position relative to the mill housing and / or relative to / to a base plate, in particular by means of adjustable fastening means. In this way, the partitioning achieved by means of the cooling housing can be set or finely adjusted.
- the cooling housing can optionally be arranged and fixable within the mill housing in such a way that a gap or channel or cooling jacket created between the cooling housing and the grinding system can be adjusted in size and / or geometry. This also enables adjustment in a simple manner, for example with regard to the throughput, for example by means of spacers and / or screw connections, which are accessible from the outside of the mill housing.
- the cooling housing can optionally be arranged inside the mill housing in such a way that a gap or channel created between the cooling housing and a / the base plate of the vibrating disk mill device is minimally large (maximally small). This further simplifies the integration of the cooling housing into the standard structure of mills.
- the cooling housing is composed / built up in a plurality of segments that can be removed / assembled, in particular in at least three segments, in particular in at least two side segments and at least one cover segment.
- This also favors a customizable design of the housing for a particular application. Last but not least, this also facilitates access to the grinding chamber without having to remove the housing from the rack / frame.
- the individual segments can in particular be constructed as surface elements or panels, in particular, at least on the outside, each completely flat / flat (flat surface outside or outside and inside).
- the cooling housing has soundproofing means, in particular a soundproofing lining on an inside of the cooling housing.
- soundproofing means in particular a soundproofing lining on an inside of the cooling housing.
- foam in particular heavy foam, can be used as a soundproofing agent.
- a material thickness of the soundproofing means or the lining is, for example, in the range from 15 mm to 55 mm.
- a vibrating disk mill device for comminuting input material, in particular input material with a particle size of less than 20 mm, in particular set up for grinding the input material to particle sizes of less than 75 ⁇ m or less than 10 ⁇ m, with: a mill housing which has a system limit of the The environment for a material feed and for a material discharge of the vibratory disk mill device is defined; a grinding system arranged in the mill housing such that it can oscillate, with a grinding chamber and with at least one grinding stone arranged movably in the grinding chamber, the grinding system being arranged on the material flow path between material feed and material discharge; wherein the vibrating disk mill device has a cooling housing which is arranged within the mill housing and encloses the grinding system or at least the grinding chamber, the cooling housing defining at least one flow path for cooling medium, in particular for gaseous cooling medium (preferably air), which at least partially extends along the grinding system has inlet and outlet for the cooling medium arranged approximately in the middle of
- the grinding system and the cooling housing are spaced apart and the flow path for cooling medium runs between the grinding system and the cooling housing. This has a number of advantages over the prior art.
- the cooling housing does not have to be moved with the grinding system. Less moving mass means less energy loss and less wear.
- the cooling medium comes more directly to the grinding system, the layer thickness for the heat transfer is reduced.
- the full-surface cooling achieves a more homogeneous temperature control.
- the feed material preferably has a particle size of less than 20 mm.
- the particle size of the feedstock is particularly preferably between 20 mm and 75 ⁇ m.
- the feedstock is preferably ground to particle sizes of less than 75 ⁇ m, particularly preferably to particle sizes of less than 10 ⁇ m.
- the starting material is preferably ground to particle sizes of more than 0.5 ⁇ m, particularly preferably to particle sizes of more than 1 ⁇ m, very particularly preferably to particle sizes of more than 2 ⁇ m.
- the aforementioned object is also achieved according to the invention by using an inner, internal cooling housing within a mill housing of a vibrating disk mill to define a cooling jacket that at least partially envelops a grinding chamber of the vibrating disk mill and to define at least one flow path for cooling medium that runs at least partially along the grinding chamber or the grinding system of the vibrating disk mill , in particular for gaseous cooling medium (preferably air), in particular in a vibratory disk mill device described above.
- gaseous cooling medium preferably air
- FIG. 1 shows a perspective view of a vibrating disk mill device according to an exemplary embodiment
- 2A, 2B, 2C each show, in perspective view, details of a cooling housing for a vibrating disk mill device according to an exemplary embodiment
- Fig. 4 is a sectional side view of a cooling housing for a
- Vibrating disk mill device according to an embodiment.
- Fig. 1 shows a vibrating disk mill device 10 with a mill housing or housing frame 1 1, which / which is constructed from individual carriers 1 1 .1 (or profiles).
- Starting material M1 is guided from a material feed 12 on a material flow path P1 through a grinding system 13 (not shown in FIG. 1) and conveyed to a material discharge 19.
- the grinding system 13 is surrounded by a cooling housing 17, which seals off the grinding system 13 from the environment 1.
- FIGS. 2A, 2B, 2C show details of the inner housing 17, for example also a labyrinth guide or at least a collar 17.7.
- the housing is constructed in individual segments, which are preferably coupled to one another or connected to one another in a fluid-tight manner.
- the outlet for the cooling medium is arranged at least approximately in the middle, preferably exactly centrally.
- the housing 17 shown in FIG. 2A is subdivided into several segments 17a, 17b, 17.2, in particular side segments (lateral walls) 17a, 17b and into at least one cover segment 17.2.
- a cover element, in particular a cover plate 17.8, can also be provided either as a housing component or as an additional part.
- the cooling medium M2 can escape from the housing 17 via an outlet 17.9; here the outlet 17.9 is between the cover 17.2 and the cover plate 17.8 arranged.
- Form-fitting and / or force-fitting fastening means 18, 18.1, in particular screw holes and associated screws, are provided on a lower edge of the housing 17.
- 3A, 3B, 4 show the grinding system 13 with the grinding chamber 13.1 and its underside or bottom 13.12, as well as the base plate 13.3.
- the grinding drive 14 is coupled to an eccentric shaft 14.1. The two other eccentric shafts run freely.
- One or more flow paths P2 of the cooling medium delimit the grinding chamber 13.1, wherein the respective flow path P2 can also be split up in sections into a plurality of flow path sections P2.1 which are brought together again.
- FIGS. 3A, 3B also show two fans 15, a floor cover 16 and the inlet 17.1 for the cooling medium M2.
- the fans are arranged in the middle of the inlet 17.1 and can be activated and optionally also regulated (for example with regard to the flow rate) by means of a control unit (not shown), in particular as a function of the operating states of the drive 14.
- the cooling medium M2 flows (in a greatly simplified description) from the inlet 17.1 radially outwards into a cooling jacket 17.5 or into a cooling cavity between the grinding system and cooling housing, continues to flow in it at least approximately in the vertical direction, and flows back radially through a cooling area 17.3 above the grinding system a central area past a collar 17.7 to the outlet 17.9.
- the housing 17 On the inside, the housing 17 has a soundproofing lining 17.6.
- the housing 17 is attached to tabs or projections by fastening means 18.2 Frame 11.1 is fixed and can therefore optionally also be mounted so as to be adjustable in the relative position.
- a gap or area 21 is formed between the cooling housing 17 and the mill housing 11. Between the cooling housing 17 and the base plate 13.3 there is a gap 22 which can be minimized.
- Fig. 4 also illustrates the radial direction r and the height direction z.
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- Crushing And Grinding (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE102019207224.0A DE102019207224A1 (de) | 2019-05-17 | 2019-05-17 | Vorrichtung zur Zerkleinerung von Einsatzmaterial sowie Verwendung eines Kühlungsgehäuses an der Vorrichtung |
PCT/EP2020/063246 WO2020234062A1 (de) | 2019-05-17 | 2020-05-13 | Vorrichtung zur zerkleinerung von einsatzmaterial sowie verwendung eines kühlungsgehäuses an der vorrichtung |
Publications (1)
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EP3969180A1 true EP3969180A1 (de) | 2022-03-23 |
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EP20726346.8A Pending EP3969180A1 (de) | 2019-05-17 | 2020-05-13 | Vorrichtung zur zerkleinerung von einsatzmaterial sowie verwendung eines kühlungsgehäuses an der vorrichtung |
Country Status (3)
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EP (1) | EP3969180A1 (de) |
DE (1) | DE102019207224A1 (de) |
WO (1) | WO2020234062A1 (de) |
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CN117983360B (zh) * | 2024-04-07 | 2024-06-21 | 湖州嘉亨实业有限公司 | 一种低温冷冻研磨设备及其在芍药籽油提取中的应用 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
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DE2063812C3 (de) * | 1970-12-24 | 1979-12-13 | Kloeckner-Humboldt-Deutz Ag, 5000 Koeln | Schwingmühle für Mahlprozesse, die während des Betriebes die Aufrechterhaltung einer Temperaturdifferenz zwischen Mahlraum und Umgebung erfordern |
DE4343742C2 (de) * | 1993-12-21 | 1999-10-14 | Krupp Polysius Ag | Scheibenschwingmühle |
DE102006042823A1 (de) * | 2006-09-08 | 2008-03-27 | PFAFF AQS GmbH automatische Qualitätskontrollsysteme | Schwingmühle und Verfahren zum Betrieb einer Schwingmühle |
DE102006042825A1 (de) * | 2006-09-08 | 2008-03-27 | PFAFF AQS GmbH automatische Qualitätskontrollsysteme | Mahleinheit mit Kühleinrichtung |
US10518269B2 (en) * | 2017-10-13 | 2019-12-31 | SPEX SamplePrep, LLC | Grinding mill with securing frame |
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2019
- 2019-05-17 DE DE102019207224.0A patent/DE102019207224A1/de active Pending
-
2020
- 2020-05-13 WO PCT/EP2020/063246 patent/WO2020234062A1/de active Application Filing
- 2020-05-13 EP EP20726346.8A patent/EP3969180A1/de active Pending
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DE102019207224A1 (de) | 2020-11-19 |
WO2020234062A1 (de) | 2020-11-26 |
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