EP3283204A1 - Dispositif et procédé de mélange, en particulier de dispersion - Google Patents

Dispositif et procédé de mélange, en particulier de dispersion

Info

Publication number
EP3283204A1
EP3283204A1 EP16714306.4A EP16714306A EP3283204A1 EP 3283204 A1 EP3283204 A1 EP 3283204A1 EP 16714306 A EP16714306 A EP 16714306A EP 3283204 A1 EP3283204 A1 EP 3283204A1
Authority
EP
European Patent Office
Prior art keywords
gap
forming element
process area
openings
forming
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
EP16714306.4A
Other languages
German (de)
English (en)
Other versions
EP3283204B1 (fr
Inventor
Eduard Nater
Achim Philipp Sturm
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.)
Buehler AG
Original Assignee
Buehler AG
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.)
Filing date
Publication date
Application filed by Buehler AG filed Critical Buehler AG
Publication of EP3283204A1 publication Critical patent/EP3283204A1/fr
Application granted granted Critical
Publication of EP3283204B1 publication Critical patent/EP3283204B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B02C17/16—Mills in which a fixed container houses stirring means tumbling the charge
    • B02C17/161—Arrangements for separating milling media and ground material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/11—Stirrers characterised by the configuration of the stirrers
    • B01F27/17—Stirrers with additional elements mounted on the stirrer, for purposes other than mixing
    • B01F27/171—Stirrers with additional elements mounted on the stirrer, for purposes other than mixing for disintegrating, e.g. for milling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/21—Mixers with rotary stirring devices in fixed receptacles; Kneaders characterised by their rotating shafts
    • B01F27/2123—Shafts with both stirring means and feeding or discharging means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/27—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/27—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices
    • B01F27/271—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed radially between the surfaces of the rotor and the stator
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/27—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices
    • B01F27/271—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed radially between the surfaces of the rotor and the stator
    • B01F27/2712—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed radially between the surfaces of the rotor and the stator provided with ribs, ridges or grooves on one surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/27—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices
    • B01F27/271—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed radially between the surfaces of the rotor and the stator
    • B01F27/2713—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed radially between the surfaces of the rotor and the stator the surfaces having a conical shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/40—Mixers with rotor-rotor system, e.g. with intermeshing teeth
    • B01F27/41—Mixers with rotor-rotor system, e.g. with intermeshing teeth with the mutually rotating surfaces facing each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/40—Mixers with rotor-rotor system, e.g. with intermeshing teeth
    • B01F27/41—Mixers with rotor-rotor system, e.g. with intermeshing teeth with the mutually rotating surfaces facing each other
    • B01F27/412—Mixers with rotor-rotor system, e.g. with intermeshing teeth with the mutually rotating surfaces facing each other provided with ribs, ridges or grooves on one surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/20—Disintegrating by mills having rotary beater elements ; Hammer mills with two or more co-operating rotors
    • B02C13/205—Disintegrating by mills having rotary beater elements ; Hammer mills with two or more co-operating rotors arranged concentrically
    • 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
    • B02C17/16—Mills in which a fixed container houses stirring means tumbling the charge
    • B02C17/166—Mills in which a fixed container houses stirring means tumbling the charge of the annular gap type
    • 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

Definitions

  • the present invention relates to a device and a method for mixing, in particular dispersing according to the preamble of the independent claims.
  • a predetermined amount of liquid is premixed with a predetermined amount of a powdered solid, usually pigment frequently ⁇ fig. Such mixtures are then, if necessary, be further milled in stirred ⁇ factory mill and dispersed.
  • exemplary industrial applications are the manufacture of paints and varnishes or the like.
  • the mixing is used in particular for the preparation of dispersions, ie dispersing.
  • a dispersion is understood as meaning a heterogeneous mixture of at least two substances which do not dissolve or hardly dissolve into one another or chemically combine with one another.
  • a substance dispersed in another substance, optionally un ⁇ ter use of auxiliary grinding bodies; For example, spherical grinding aids are frequently used in agitator mills.
  • the present invention relates in particular to (the production of) suspensions - ie dispersions in which a liquid forms the continuous phase and a solid forms the disperse phase.
  • the wetting of the substance to be dispersed and given if necessary, the subsequent stabilization) understood.
  • Comminution may typically be the dissolution of agglomerates into primary particles.
  • aggregates or as- sociates when combined by van der Wals forces or stronger chemical forms of formation
  • Mahlosenia can succeed as in a disperser or dissolver, are required for crushing of aggregates or crystals devices with Mahlostage, such as a stirred mill with spherical Mahlosêtn.
  • Mahlos 1969 By aggregates in the broader sense, larger crystalline or amorphous structures can be understood here.
  • comminution of aggregates crystalline or amorphous structures, real comminution is used.
  • Generic device for mixing two substances in particular a liquid and a solid such as ⁇ example, a powder, have in a conventional manner a housing and a rotor rotating therein. By means of at least one supply line, the substances are introduced into the housing.
  • Currency ⁇ rend an operation of the device, the materials are mixed by means of the rotor and then tet ⁇ reallylei from the housing.
  • the dispersing apparatus comprises a dispersing chamber, at least one stirring disk, an inlet through which the liquid with the material to be treated and the dispersion medium are sucked by the rotation of the stirring disk, an outlet, and a separator.
  • the separating device is arranged at the outlet. By means of the separator, the Mahltosêt separated from the dispersion.
  • the separator may discharge the dispersion through the outlet, the
  • DE 10 2010 053 484 discloses an agitator ball mill having a separating device for auxiliary grinding bodies, wherein the separating device is arranged around an axis of rotation.
  • the Trennein ⁇ direction consists of two components wherein one component min ⁇ least a separation device and a second component is a dy- namisches element for generating a material flow.
  • the device includes a very small dynamic gap as a separator, so that the flow rate is reduced.
  • DE 1 507 493 discloses an agitating ball mill with disk-shaped stirring tools in a cylindrical housing, wherein one or two disks are mounted above the rotor and provide dynamic gaps with stator elements. Again, the flow rate is very limited by the small number of exit slits. Furthermore, the possibility to exit the mixture from the device is only very locally possible.
  • Separating device for separating the grinding media consists of a sieve. Such a sieve can clog easily and thus increases the maintenance frequency of the device.
  • the object is achieved by a device and a method for mixing according to the characterizing part of the independent claims.
  • a device for Mi ⁇ rule in particular dispersed, which comprises the following features: - a housing having at least one inlet,
  • a first process area for mixing supplied substances wherein the substances can be introduced into the first process area through the at least one inlet,
  • a first gap-forming member preferably a rotor, which is assigned to the first process area and comprises Publ ⁇ voltages,
  • a second gap-forming element preferably a stator, which is assigned to the second process area and corresponds to the first gap-forming element, wherein the second gap-forming element comprises openings,
  • At least one of the gap-forming elements preferably the rotor, is designed to be rotatable relative to the other gap-forming element about a rotation axis.
  • the openings of the first gap-forming element and the openings of the second gap-forming element are arranged in such a way. net, that a mixture of the materials supplied through the openings in the two gap-forming elements from the first to the second process area is conductive. Such a device leads to a high throughput without the risk of constipation.
  • the gap-forming elements must be rotatable relative to each other, so that both elements can be designed to be rotatable. In this case, the rotational speeds and / or the direction of rotation must be different.
  • the openings in the gap-forming elements are preferably arranged such that the openings do not overlap and a material transfer from the openings of the first gap-forming element to the openings of the second gap-forming element is possible only through a gap between the openings. After passing through the gap, the openings should allow a large flow of material and therefore have a large opening diameter / opening area compared to the gap.
  • the gap according to the invention is formed between the two gap-forming elements.
  • the smallest extent of the openings in the first gap-forming element is preferably at least 3 times as large as the greatest extent of the gap between the two gap-forming elements.
  • the smallest dimension of the openings in the second gap-forming member is at least 3 times as large as the largest Ausdeh ⁇ voltage of the gap between the two nip-forming elements.
  • the extents of the annular gaps must of course be substantially in the extension of the gap between the gap-forming elements or smaller as the gap between the gap-forming elements.
  • a high flow through a high number of annular gaps is achieved.
  • the inventive gap between the first gap-forming element and the second gap-forming element has a separation function.
  • the expansion of the gap prevents particles larger than the gap from entering the second process area.
  • Between the housing and the first gap-forming element may be at least one, preferably two, preferably dynamic, column ge ⁇ be formed.
  • the first gap-forming element may surround the second gap-forming element, and a gap of at most 3 mm, preferably 1.0 mm and particularly preferably 0.5 mm may be formed between the two elements.
  • the minimum gap has a transverse dimension of 0, 1mm.
  • a gap is formed between the two gap-forming elements whose maximum extent is smaller than the smallest element of the grinding bodies which can be filled or filled into the device.
  • the gap is at most half as large as the diameter of the smallest grinding body.
  • first gap-forming element and / or on the housing grinding tools can be arranged, which are used for mixing or for dis- persion of imported substances in the first process area are formed.
  • Such grinding tools may be pins or discs or other known embodiments of grinding tools.
  • the first gap-forming element is designed as a rotor, so that with the grinding tools on the rotor, the movement of the supplied materials and possibly the grinding media is generated and thus a dispersion in the first process area is achieved.
  • the first gap forming element may extend substantially completely along a length of the first process area.
  • grinding media In the first process area grinding media can be filled, whose forwarding in the second process area by column, in particular dynamic column, can be prevented.
  • the dynamic gaps may be formed between the first gap-forming and the second gap-forming element and additionally between the first gap-forming element and the housing.
  • dispersed Materi al ⁇ enters the second process area and a blockage of the column is not possible by the movement of the gap edges.
  • Between the first and the second process area preferably no static separation device is formed.
  • the static separator can not clog.
  • a static separator is a separator in which the edges of the apertures through which the mixture passes do not move. Static separation devices are thus in particular fixed sieves.
  • the second gap-forming element may be formed as a static separation device, wherein preferably the openings in the static separation device are smaller than the minimum diameter of the grinding media.
  • the Publ ⁇ voltages in the static separation device are formed by annular gaps.
  • Such a static separation device reliably keeps grinding media as well as particles that are too large from the second process area.
  • Both gap-forming elements may be cylindrical or conical.
  • the gap-forming elements as circular disks, which are arranged between the first and the second process area.
  • the gap between the first gap-forming element and the second gap-forming element may have a longitudinal extent, which is formed parallel to the axis of rotation.
  • the gap may be formed substantially perpendicular to the axis of rotation be.
  • the gap may be formed from ⁇ at an angle of 1 ° to 89 ° to the axis of rotation.
  • the openings of the gap-forming elements may extend over a length of at least 50%, preferably 60%, more preferably 70%, of the length of the first gap-forming element in the first process area.
  • two or more bores can be connected to one another at the circumference of the second gap-forming element by a groove, preferably a milled groove.
  • the groove must not overlap with the openings in the first gap-forming element.
  • the housing of the device may further comprise a pump housing or be connected to a pump housing, which forms a pump on the housing of the device.
  • Pump housing and housing of the device may be formed in one piece or in several pieces.
  • the pump housing ⁇ housing is preferably flange-mounted on the housing of the device.
  • a pump is arranged in the pump housing.
  • the required pump is directly connected to the device for Mi ⁇ rule and it is only a control and less external lines necessary.
  • the same shaft can be used as for driving the moving gap-forming element and / or the grinding tools.
  • the pump housing includes a pump inlet and a pump outlet.
  • the pump can be a centrifugal pump, a liquid ⁇ keitsringpumpe, a side channel pump or a positive displacement pump, such as an impeller pump action.
  • the object is further achieved by a method for dispersing materials in a device, preferably as previously ⁇ be written.
  • the method comprises the steps:
  • the mixture may be additionally passed through one or more dynamic gaps between the first gap-forming element and a housing of the device.
  • a dynamic separation device is provided between the housing and device that does not clogged and simultane- ously simplifies the design of the device.
  • the dispersion in the first process area can be achieved by grinding media and / or grinding tools.
  • Grinding tools may be discs or pins or similar grinding ⁇ tools, which are already known from the prior art. Grinding media are hard, round or elliptical bodies that help to disperse the material. The grinding media are adapted to the desired degree of dispersion and may also have a different size depending on the imported material. The grinding media are held up by the gap (s) between the gap-forming elements and / or the housing.
  • the dispersion can be achieved by grinding bodies which are at least 1.5 times, preferably 3 times, in particular 10 times larger Have diameter than the largest gap has a transverse extent.
  • the grinding media can not pass through the gap and the gap serves as a dynamic separator.
  • the mixture may be passed through at least 4, preferably 20, more preferably 100 openings in the first gap-forming element.
  • the mixture may further, by at least 4 preferably Minim ⁇ least 50, more preferably min. 200 openings are passed in the second gap-forming element.
  • the openings in the second gap-forming member may be at least partially ge through bores ⁇ forms.
  • two or more holes may be connected to each other at the periphery by a groove, preferably a milled groove.
  • the groove must not overlap with the openings in the first gap-forming element. Thus, a large outflow volume can be created and the mixture is quickly discharged into the second process area.
  • FIG. 1 shows a section through a first and a second gap-forming element
  • Figure 2 A view of a first embodiment according to
  • FIG. 1, 3 shows a view of a section through a first embodiment according to FIG. 1, FIG.
  • Figure 4 A view of a second embodiment of a first and second gap-forming element
  • FIG. 5 shows a section through a second embodiment according to FIG. 4, FIG.
  • Figure 6 An oblique view of a second execution ⁇ form according to Figure 4,
  • FIG. 7 shows a view of a section of a second embodiment according to FIG. 4,
  • FIG. 8 shows a section through a third embodiment of a first and second gap-forming element
  • Figure 9 A view of a third embodiment ge ⁇ Josess Figure 8,
  • FIG. 10 shows a view of a section of a third embodiment according to FIG. 8,
  • FIG. 11 shows a section through a fourth embodiment of a first and second gap-forming element
  • Figure 12 A view of a fourth embodiment ge ⁇ Yamass Figure 11,
  • Figure 13 A view of a section through a fourth
  • FIG. 14 shows a section through an embodiment of the first and second gap-forming element with conveying element
  • FIG. 15 shows a view of a device from FIG. 14,
  • Figure 16 A view on a section through a Vorrich ⁇ processing of Figure 14, Figure 17 is a section through a first embodiment of a first and second gap-forming member
  • FIG. 18 section from FIG. 17, FIG. 19: a section through a fifth embodiment of a first and second gap-forming element
  • FIG. 20 a view from the device from FIG. 19,
  • FIG. 21 a view onto a section from the device from FIG. 19,
  • FIG. 22 shows a section from a sixth embodiment of a first and second gap-forming element
  • FIG. 23 a view of a device from FIG. 22,
  • Figure 24 A view of a section of a Vorrich ⁇ processing of Figure 22,
  • FIG. 25 shows a section through an inventive device ;
  • FIG. 26 a view of a section from FIG. 25,
  • FIG. 27 shows a second embodiment of an apparatus according to the invention
  • Figure 28 A view of a section of a Vorrich ⁇ processing of Figure 27,
  • FIG. 29 shows a section through a third embodiment of the device according to the invention.
  • FIG. 30 A view of a section of the device
  • Figure 29, Figure 31 A section through a third embodiment of the inventive device.
  • FIGS. 1 to 13 each show different views of different embodiments of the gap-forming elements 7, 9. Each of these embodiments can be installed in a housing 2 of a device 1.
  • Figures 1 to 3 show a first embodiment of the gap-forming elements 7, 9.
  • Figure 1 shows a section
  • Figure 2 is a view
  • Figure 3 is a view of a section.
  • the first gap-forming element 7 is cylindrical and surrounds the second gap-forming element 9.
  • the second gap-forming element 9 is cylindrical.
  • the first gap-forming element 7 comprises openings 8, which are formed rectangular, wherein the corners of the openings 8 rounded wur ⁇ the.
  • the second gap-forming element 9 comprises openings 10 which are round.
  • the openings 8 and the openings 10 do not overlap.
  • Between the openings 8 and the openings Gen 10 are formed column 13.
  • At least one of the two gap-forming elements 7, 9 is rotatably formed about the rotation axis 11. This results in dynamic gaps 13.
  • the first gap-forming element 7 is directed towards the first process area 4, while the second gap-forming element 9 is directed toward the second process area 5.
  • the second gap-forming member 9 further comprises a connecting groove 29 which connects the Publ ⁇ voltages 10 along the circumference of the second gap-forming member.
  • the Ver ⁇ effetsnut 29 does not overlap with the openings 8 of the f th ⁇ gap-forming member 7.
  • the apertures 8 have an area of 15x30mm
  • the openings 10 have a diameter of 12mm in the area of the bore.
  • the openings 10 are connected in the circumferential direction by a groove having an extension of 13mm.
  • the necessary extent of the openings 8,10 is at least three times the largest diameter of the grinding media used, if grinding media are used.
  • Figures 4 to 7 show a second embodiment of the gap-forming elements 7, 9.
  • Figure 4 hereby shows an on ⁇ view
  • Figure 5 shows a section
  • Figure 6 is an oblique view
  • Figure 7 is a view of a section.
  • the two gap-forming elements 7 and 9 are circular-disk-shaped.
  • the first gap-forming element 7 comprises openings 8, which are formed around ⁇ .
  • the second gap-forming member 9 comprises Publ ⁇ voltages 10 which are also round.
  • the openings 8 do not overlap with the openings 10.
  • a gap 13 is formed through which the mixture from the first process area 4
  • FIGS. 8 to 10 show a third embodiment of the gap-forming elements 7, 9.
  • FIG. 8 shows one
  • the first gap-forming element 7 is the first
  • the first gap-forming element 7 comprises openings 8 which are round.
  • the first gap-forming element 7 surrounds the second gap-forming element 9 completely, wherein both gap-forming elements 7 and 9 are rotationally symmetrical, conical.
  • the second gap-forming element 9 surrounds ⁇ openings 10, which are also round.
  • ⁇ at least one of the nip-forming elements 7, 9 is to Rotationsach- se designed to be rotatable. 11
  • the openings 8 and the openings 10 do not overlap but form gaps 13 (exemplarily inserted) through which the mixture can flow from the first process area 4 (not shown) into the second process area 5.
  • FIGS. 11 to 13 show a further embodiment of the gap-forming elements 7, 9.
  • FIG. 11 shows a section
  • FIG. 12 shows a view
  • FIG. 13 shows a section through the plane BB of FIG. 11.
  • the embodiment from FIGS. 11 to 13 substantially corresponds the embodiment of Figures 1 to 3 except for the shape and the number of openings 8.
  • the openings 8 in the first gap-forming element 7 are formed asymmetrically and comprise, unlike the openings 8 of the embodiment of Figures 1 to 3, a ramp 19.
  • Die Ramp 19 serves as a flow-optimized embodiment for Mahl stresses ⁇ rejection in forming the first gap-forming element 7 as a rotor.
  • the number of openings 8 is in each eight Publ ⁇ calculations 8 in the circumferential direction and four in the longitudinal direction, so a total of 32 openings 8 in the first gap-forming element 7.
  • the first gap-forming element 7 is designed to be rotatable about the axis of rotation 11.
  • the ramp 19 in this case has a slope (alpha) to the tangent to the inner diameter of the first gap-forming element (7) of 10 ° to 80 °, preferably 30 °.
  • Figures 14 to 16 show the embodiment of the spaltbil- radiating elements 7, 9 of Figures 1 to 3 with grinding elements 14 and 18, a conveying element Figure 14 this shows a section, Figure 15 is a view and Figure 16 is a view on ei ⁇ nen Cut.
  • the first gap-forming member 7 includes openings 8 and grinding tools 14.
  • the first gap-forming member 7 is designed as a rotor, so that the grinding tools 14 to a Dis ⁇ persion of the substances in the first process area 4 can contribute (not shown).
  • the second gap-forming member 9 to ⁇ summarizes openings 10.
  • the second process area 5 is a conveyor derelement arranged 18, which is formed around the rotational axis 11, exactly as the first gap-forming member 7 3 rotatably ,
  • the conveying member conveys the mixture from the second ⁇ Pro zess Scheme 5 and thus also ensures a good flow through the device.
  • FIG. 17 shows the embodiment from FIGS. 1 to 3 with the gap-forming elements 7, 9 and the openings 8, 10. At least one of the gap-forming elements 7, 9 is designed to be rotatable about the axis of rotation 11.
  • FIG. 18 shows a section A from FIG. 17.
  • the first gap-forming element 7 is shown with the second gap-forming element 9 and between the gap-forming elements 7 and 9
  • the gap portion 24 has a longitudinal extent b and a transverse extent a.
  • the transverse extent a of the gap section 24 is smaller than the smallest grinding element that can be filled into the first process area 4 (not shown).
  • the second gap-forming member 9 can be designed exchangeable so formed ⁇ that the gap 24 of the grinding media 16 (not shown) Toggle fittable, even if the grinding media 16 is a different size in a first process have as in a wide ⁇ ren process.
  • the transverse dimension of a gap section 24 ent ⁇ the transverse extent of the gap 13 speaks (see Fig. 17).
  • FIGS. 19 to 21 show a further embodiment of the gap-forming elements 7, 9.
  • FIG. 19 shows one
  • Section, Figure 20 is a view and Figure 21 is a view on egg ⁇ nen cut.
  • the gap forming element 7 is formed analogously to the gap forming element 7 of Figures 1 to 3.
  • the second gap-forming element 9 is designed such that it comprises a plurality of annular gaps 20.
  • the annular gaps 20 are so dimensioned that only suffi ⁇ accordingly dispersed material may enter into the second process space. 5
  • any existing grinding media 16 (not shown) from the first process area 4 (not shown) can not pass through the annular gaps 20.
  • To ⁇ least one of the nip-forming elements 7, 9 is rotatably formed about the axis of rotation. 11
  • the annular gaps 20 are stabilized by Sta ⁇ bilmaschinesstege 25.
  • FIGS. 22 to 24 show a further embodiment of the second gap-forming element 9.
  • the first gap-forming element 7 corresponds to the first gap-forming element from FIGS to 3.
  • Figure 22 is a sectional view in this case, Figure 23 shows an on ⁇ view and Figure 24 is a view of a section.
  • the first gap-forming element 7 comprises openings 8 which are formed analogously to FIGS. 1 to 3.
  • the second gap-forming element 9 comprises openings 10 and, in addition, annular gaps 20. Die
  • Annular gaps 20 are arranged such that they overlap with the voltages Publ ⁇ 8 in the first gap-forming element. 7 Through the annular gaps 20 can exclusively been dispersed Ge ⁇ mixing pass therethrough and larger particles are held. Thus, this embodiment allows a larger passage, as a larger passage volume is made possible by the annular gaps
  • Figures 25 and 26 show the arrangement of a first and second gap-forming element 7, 9 according to Figures 14 to 16 in a device 1.
  • Figure 25 shows a section and
  • Figure 26 is a view of a section.
  • the device 1 for ⁇ summarizes a housing 2 which includes a first gap-forming member 7 and a second gap-forming member. 9
  • An inlet 3 is formed in the housing 2. The to be mixed
  • the first process area 4 further comprises grinding body 16.
  • the housing 2 is equipped with grinding tools 14 on the housing wall.
  • Corresponding grinding tools 14 are formed on the first gap-forming element 7.
  • the dispersed mixture passes from the first process area 4 through gaps 12, 13 into the second process area 5.
  • a conveying element 18 is formed, which rotates about the axis of rotation 11.
  • the first gap-forming element 7 also rotates about the rotation axis 11. From the second process area 5, the mixture exits the housing through the outlet 6.
  • the gaps 12, 13 are smaller than the diameter of the grinding bodies 16. Thus, no grinding bodies 16 in the two process area 5.
  • the length of the first process area 15 corresponds substantially to the length of the first gap ⁇ forming member 7.
  • the embodiment of the device 1 in the figures 27 and 28 corresponds substantially to the embodiment of Figures 25 and 26.
  • the pump housing 21 is flanged onto the housing 2 and includes a pump inlet 23 and a pump outlet 22. Premix is pumped from the pump outlet 22 to the inlet 3 of the apparatus.
  • FIG. 27 shows a section and FIG. 28 shows a view of one
  • the device 1 has an inlet 3 and an outlet 6 in the housing 2 in this embodiment.
  • no auxiliary grinding bodies are present in this embodiment.
  • the first process area extends essentially along the first gap-forming element 7.
  • the advantage of the simultaneous formation of a pump lies in particular in the simplified control.
  • FIGS. 29 and 30 show a further embodiment of the device 1.
  • FIG. 29 shows a section
  • FIG. 30 shows a view of a section.
  • a side channel pump in the pump housing 21 is arranged ⁇ .
  • the pump housing also includes a pump inlet 23 and a pump outlet 22.
  • the premix is pumped from the pump outlet 22 into the inlet 3 of the apparatus.
  • the Ausbil ⁇ dung of the device apart from the pump housing 21 corresponds essentially to the embodiment in Fig. 25 and 26.
  • FIG. 31 shows an alternative embodiment of the device 1 in which the gap-forming elements 7, 9 only extend over a partial area of the first process area 4.
  • milling tools 14 are further formed in the form of discs with holes.
  • the first gap-forming ele ment ⁇ 7 rotates around the second gap-forming member 9. Both gap-forming elements 7, 9 respectively have openings 8, 10.
  • the mixture flows from the first process area 4 through the gaps 13 into the second process area 5.
  • the housing 2 also has an inlet 3 and outlets 6.
  • the grinding tools 14 are arranged on a shaft 26.
  • the shaft 26 includes a shaft ⁇ nut 27 engage in the engagement cam 28 of the first gap-forming element 7.
  • the first gap-forming element is driven by the same shaft as the grinding tools 14.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Crushing And Grinding (AREA)
  • Accessories For Mixers (AREA)

Abstract

L'invention concerne un dispositif (1) de mélange, en particulier de dispersion, comprenant un boîtier (2) muni d'au moins un orifice d'admission (3). Le dispositif comprend une première zone de procédé (4) pour le mélange des substances amenées, qui peuvent être amenées grâce à l'orifice ou aux orifices d'admission (3) dans la première zone de procédé (4). Le dispositif comprend en outre une deuxième zone de procédé (5) pour l'évacuation du mélange vers un orifice de sortie (6). Par ailleurs, le dispositif comprend un premier élément formant une fente (7), de préférence un rotor, qui est affecté à la première zone de procédé (4), et des ouvertures (8), ainsi qu'un deuxième élément formant une fente (9), de préférence un stator, qui est affecté à la deuxième zone de procédé (5) et correspond au premier élément formant une fente (7), le deuxième élément formant une fente (9) comprenant des ouvertures (10). Au moins l'un des éléments formant une fente (7, 9), de préférence le rotor, est conçu de manière à être à pouvoir tourner autour d'un axe de rotation (11) par rapport à l'autre élément formant une fente (7, 9). Les ouvertures (8) du premier élément formant une fente (7) et les ouvertures (10) du deuxième élément formant une fente (9) sont disposées de telles sorte qu'un mélange des substances amenées peut être conduit à travers les ouvertures (8, 10) dans les deux éléments formant une fente (7, 9) depuis la première zone (4) dans la deuxième zone de procédé (5).
EP16714306.4A 2015-04-17 2016-03-22 Dispositif et procédé de mélange, en particulier de dispersion Active EP3283204B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP15164059 2015-04-17
PCT/EP2016/056216 WO2016165917A1 (fr) 2015-04-17 2016-03-22 Dispositif et procédé de mélange, en particulier de dispersion

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EP3283204A1 true EP3283204A1 (fr) 2018-02-21
EP3283204B1 EP3283204B1 (fr) 2020-12-23

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EP (1) EP3283204B1 (fr)
JP (1) JP6785791B2 (fr)
CN (1) CN107690354B (fr)
BR (1) BR112017022241B1 (fr)
ES (1) ES2849179T3 (fr)
MX (1) MX2017013319A (fr)
RU (1) RU2699108C2 (fr)
WO (1) WO2016165917A1 (fr)

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CN109453709A (zh) * 2018-12-26 2019-03-12 江苏康鹏农化有限公司 一种新型的自动化农药混合搅拌装置
CN109847615B (zh) * 2019-03-29 2021-05-18 重庆今天饲料有限公司 一种饲料粉碎搅拌装置
CN111250224B (zh) * 2019-07-26 2023-11-24 湖北迈兆机械有限公司 离心式研磨分离器
CN111085138A (zh) * 2020-01-16 2020-05-01 上海数郜机电有限公司 一种真空高速混料罐
CN112999920B (zh) * 2021-03-09 2022-08-26 广东省农业科学院蚕业与农产品加工研究所 一种液体食品搅拌装置

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Also Published As

Publication number Publication date
JP6785791B2 (ja) 2020-11-18
CN107690354A (zh) 2018-02-13
RU2017139802A (ru) 2019-05-17
EP3283204B1 (fr) 2020-12-23
RU2017139802A3 (fr) 2019-05-17
CN107690354B (zh) 2021-06-29
RU2699108C2 (ru) 2019-09-03
BR112017022241B1 (pt) 2022-04-12
ES2849179T3 (es) 2021-08-16
WO2016165917A1 (fr) 2016-10-20
US11059004B2 (en) 2021-07-13
BR112017022241A2 (pt) 2018-07-10
US20180099254A1 (en) 2018-04-12
JP2018513009A (ja) 2018-05-24
MX2017013319A (es) 2018-08-15

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