EP0139729A1 - Installation pour la preparation de materiaux coulants - Google Patents

Installation pour la preparation de materiaux coulants

Info

Publication number
EP0139729A1
EP0139729A1 EP84901737A EP84901737A EP0139729A1 EP 0139729 A1 EP0139729 A1 EP 0139729A1 EP 84901737 A EP84901737 A EP 84901737A EP 84901737 A EP84901737 A EP 84901737A EP 0139729 A1 EP0139729 A1 EP 0139729A1
Authority
EP
European Patent Office
Prior art keywords
container
tool
rotating
rotating tool
scraper plate
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.)
Withdrawn
Application number
EP84901737A
Other languages
German (de)
English (en)
Inventor
Willi Eirich
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0139729A1 publication Critical patent/EP0139729A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F29/00—Mixers with rotating receptacles
    • B01F29/60—Mixers with rotating receptacles rotating about a horizontal or inclined axis, e.g. drum mixers
    • B01F29/64—Mixers with rotating receptacles rotating about a horizontal or inclined axis, e.g. drum mixers with stirring devices moving in relation to the receptacle, e.g. rotating
    • 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
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/61—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis about an inclined axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F29/00—Mixers with rotating receptacles
    • B01F29/40—Parts or components, e.g. receptacles, feeding or discharging means
    • B01F29/403—Disposition of the rotor axis
    • B01F29/4033—Disposition of the rotor axis inclined

Definitions

  • the invention relates to a device for preparing flowable materials with a container rotating around its central axis inclined to the solder, with a wall and / or floor scraper plate arranged essentially fixed with respect to the cylindrical inner wall of the container, with a discharge opening located in the bottom of the container and with a rotating tool engaging in the material.
  • a processing device of the type described above is already known in DE-PS 20 03 201.
  • the rotating container is driven at supercritical speed. It is such a speed that the centrifugal forces acting on the parts of the material are greater than the weight of the material parts. Due to the supercritical speed thus defined, centrifugal forces are exerted on the mix in such a way that it adheres to the cylindrical inner wall of the container. Therefore, a deflector is arranged stationary in the known mixing container, which cleans the wall and removes the treatment material from the action of the centrifugal forces in that it detaches the material from the inner wall of the container and directs it to fast-moving mixing tools.
  • the known deflector also has a lower part that extends from the outer peripheral wall to the area of the discharge opening.
  • the deflector mentioned is also provided for the circulation of the mixed material. Because it has to pull off the material adhering to the inner wall of the container while overcoming the centrifugal force and deflect it towards the center of the container, it also acts as a brake for the rotating container, which on the one hand transports the pressed processing material against the deflector. The energy expenditure for driving the container is thereby. relatively large.
  • the fast-moving mixing tool is located in the III inclined center axis of the container. or IV. quadrants, ie also in the area of the ascending material flow.
  • This arrangement disrupts the upward flow of material in the container, with the result that there is significantly more material in the lower region of the container than in the upper region of the container.
  • This unequal container filling means that the available mixing space in the upper part of the container is not used, so that the processing machine has only a small filling capacity in relation to the available volume and thus a lower processing capacity.
  • the object of the invention is therefore to improve a device of the type mentioned in such a way that the use of energy is reduced with good preparation effects and an improvement in performance is achieved in terms of the available volume of the machine by a higher filling.
  • This object is achieved in that the container is driven at a subcritical speed, the rotating tool is arranged exclusively downstream from the apex, the upstream space is consequently free of internals and that the stripper plates are arranged near the apex of the container.
  • the respective rotating tool which is preferably arranged in the second quadrant, is very effectively supplied with processing material by the arrangement according to the invention in connection with the subcritical speed of rotation of the container, because the kinetic energy of the processing material hitting the rotating tool is not only due to the rotational energy of the container is applied, which accelerates the processing material in the ascending area and allows it to strike with appropriate rotational energy, but there is also the gravity or the weight of the processing material.
  • the processing material does not have to be detached from the container by overcoming the centrifugal force pressure of the material on the inner wall of the container.
  • the scraper plate which acts as a deflector, basically only has the task of cleaning the container wall and bottom and preferably directing the material to the discharge opening during the emptying phase. While in the known processing machine the material to be processed is subjected to a sharp deflection and with great effort into the III. or IV. quadrant located rotating tool had to be pressed, the deflection according to the invention no longer needs to be comparatively sharp.
  • the deflection is no longer used to prepare the filling material but primarily only for emptying.
  • the resistance that the processing material experiences when the stripper plate flows past is evidently lower. This means that considerably less energy is used and less wear is generated.
  • the device according to the invention is particularly suitable for the treatment of bulk materials, such as those processed in the building materials industry, the ceramic and the chemical industry.
  • bulk materials such as those processed in the building materials industry, the ceramic and the chemical industry.
  • the ceramic industry it is e.g. It is customary to knead a plastic mass from fine, wind-sighted clay powder and water.
  • the two mixture components added are very flowable, while at the end of the mixing time they can form a sticky, plastic mass.
  • At least a part, preferably the lower section, of the stripper plate can be pivoted and locked about an axis parallel to the central axis of the container.
  • To this Way is a pivotally arranged, so to speak.
  • Deflector created which is placed during the mixing process, for example in the direction of rotation of the rotating container and is only pivoted in for emptying. This has the advantage that the mix flow is not slowed down by the deflector during the mixing time.
  • the pivotable part of the scraper plate can also be adjusted in a controlled manner during the entire preparation time. This allows, for example, mixed material to be directed more or less strongly onto the mixing tools, for example the rotating tools, as desired. This means that the mix flow can always be automatically directed to the mixing tool so strongly that it constantly works with a previously selected motor load.
  • two rotating tools are arranged one behind the other in the flow direction of the material flow and offset in the 1st and 2nd quadrants in such a way that the downstream tool acts on the material space of the upstream tool.
  • the second rotating tool is offset from the first in the direction of flow and / or transversely to it or not, in any case it is due to the arrangement of two rotating tools, which are preferably each made somewhat smaller than if only a single rotating tool is used, possible to coat the entire container bottom surface without having to take complex mechanical measures to record the entire treatment material.
  • the rotating tool has shorter blades in the radial direction in the lower region near the container bottom than in the upper region.
  • the term "below” it is assumed that the viewer looks into the container from above with the lid removed and assumes the bottom with emptying opening below and the entry opening "above”.
  • the emptying opening is intended to cooperate with the other tools installed in the container in order to achieve rapid emptying, so that the performance of the device according to the invention can be improved.
  • the lower blades of the rotating tool do not completely or to a large extent sweep over the emptying opening, because in the emptying phase the processed material is hindered from exiting the container.
  • the above measures of the blades, which are shorter in the radial direction promote this purpose.
  • the favorable combination of subcritical speed, adjustment of the scraper plate and design of the rotating tool with its expedient arrangement in the downstream area of the container unexpectedly allow the design of rotating tools with more than one blade ring, preferably 3 to 6.
  • the blades In the axial direction of the shaft of the rotating Tools are therefore to be thought of 2 to 5 blade rings one above the other, the blades preferably projecting in the radial direction, possibly inclined, so that their plane is set at an angle to a plane perpendicular to the shaft axis.
  • the container is provided with a remarkably high filling, so that all the vane rings can work in the filling material and thus act very effectively.
  • a good vertical mixing effect is also achieved, i.e. a movement component of the treatment material in the direction of the shaft axis of the rotating tool.
  • the shorter design of the blades in the lower area of the container also advantageously creates the possibility that the deflecting part of the stripper plate, which is located in the vicinity of the container body, receives a larger coating area.
  • This deflector part of the stripper plate can preferably be made longer, because it has more space in the vicinity of the container bottom due to the reduction in the radial effective area of the rotating tool.
  • emptying can in turn also be carried out cheaply if the deflecting part of the scraper plate extends as far as the rear edge (viewed in the direction of rotation of the container) of the emptying opening because the entire material to be treated is gripped and yet a too sharp deflection of the material flow is avoided (This position of the deflector is shown in the 1st quadrant in FIG. 1). If you have a better material flow towards the emptying opening, there is less congestion, faster emptying and consequently the advantage that you have a shorter emptying time and a longer preparation time with the same mixer playing time (or charging time) and thus the performance is improved as desired .
  • FIG. 1 schematically shows the top view of a processing container shown as a circle for defining the quadrants and the clock hand positions, processing being understood in connection with the exemplary embodiments to mean mixing,
  • FIG. 2 is also a schematic side view of FIG. 1 for the definition of the clock hand positions
  • Fig. 3 is a plan view of a first embodiment of a mixing machine with a rotating tool and stationary scraper plate
  • FIG. 4 shows a plan view similar to FIG. 3, but of a second embodiment with two rotating tools, the axes of rotation of which are arranged side by side essentially on the dividing line between the 1st and 2nd quadrants,
  • FIG. 5 shows the side view, partially broken away, of the device of FIG. 3 from the left
  • FIG. 6 is a partially broken side view of the device of FIG. 4 from the left
  • Fig. 7 is a similar schematic representation as in
  • Fig. 8 is a plan view of another embodiment of a mixing machine similar to that of FIG. 4 with an adjustable scraper plate and
  • FIGS. 9 shows a further schematic illustration similar to FIGS. 1 and 7, but with a different wiper plate, showing the material flow in a mixing machine of the first embodiment according to FIGS. 3 and 5.
  • FIGS. 1 and 2 are considered first.
  • Fig. 1 the viewer looks in the direction of the central axis 5 of the processing container 1, which thus presents itself as a circle around the center 5.
  • the turns Container 1 in the direction of the circular arrows shown, the central axis 5 being set against the plumb at an angle of 20 ° to 80 °, preferably 45 ° to 75 °, then at 24 in the 12 o'clock position the apex results which corresponds to Fig. 2 shows the upper part on the right.
  • the scraper plate 2 which essentially consists of two plate parts, also comes into play in this area, as can be seen in FIG. 2.
  • One plate part is as narrow as the other, but runs on the inside of the cylindrical container wall parallel to the central axis 5; while the other plate part extends perpendicularly to the area of the discharge opening 3. 1, 2 and 7, the wiper plate 2 is shown in one piece. However, it can also be two plate parts fastened to one another or even pivotable relative to one another, such as e.g. 8 and 9 can be seen.
  • the I and II quadrants are located, this being the downstream side from the apex 24; and on the opposite side of the line from 6 a.m. to 12 p.m. are III. and IV quadrant, the respective boundary lines between the 1st and 2nd and between the 4th and 4th quadrants being the line from 3:00 to 9:00.
  • FIG. 3 shows a first embodiment of a mixing machine, the rotating container 1 of which is stored in the machine frame 9 via bearings 17 (FIG. 5) and driven by the friction wheel 8.
  • the stripper plate 2 is arranged on the holding arm 4 as a fastening point for the deflector.
  • Quadrant lies the central axis 5 'of the large rotating tool 6, which runs parallel to the central axis 5 of the container 1.
  • the dash-dotted circular line 6 with the arrow shows the direction of rotation of the rotating tool 6, which is at the point closest to the inner wall of the container 1 is opposite to the direction of rotation of the container.
  • the rotating tool 6 is held by an arm 25 which, like the drive motor 7 of the rotating tool 6, is supported on the machine stand 26.
  • a lower machine room 19 represents the general holder for the container 1 and its drives.
  • the motor 27 drives the friction wheel 8, and the scraper plate 2 is provided such that it can be adjusted via the holding arm 4.
  • the rotating tool 6 consists of a composite shaft 18, along the respective mixing or spacing from each other.
  • Comminution blades 28 are arranged one above the other so that practically the entire filling volume of the container 1 can be coated.
  • the blades arranged at the lower free end of the shaft 18 are seen radially shorter than the middle one and these in turn are radially shorter than the upper one.
  • the discharge opening 3 is closed by a closure lid 16 which shows the closed position in the dashed position and the open position in the dash-dotted position.
  • the fulcrum for opening and closing this cover 16 is designated 29.
  • FIGS. 4 and 6 is very similar to that of FIGS. 3 and 5, however, instead of a large rotating tool 6, two small tools 14 and 15 are used, the central axes 10 and 11 of which on the dividing line between the I. and II Quadrants, ie are arranged side by side in the flow direction of the material in the container 1. Instead of a frame, two frames 26 and 30 are shown here for the arrangement of the two rotating tools 14 and 15; correspondingly also two drive motors 12 and 13.
  • the smaller rotating tool 14 or 15 consists of a few radial blades 31 arranged at a distance along the shaft 18 ′, the radial dimensions of which are in relation to that of the blades 28 Fig. 5 is smaller and equal to each other.
  • FIG. 4 Another arrangement of the two rotating tools with the central axes 21 and 22 is to be illustrated in FIG. 4.
  • One rotating tool A is connected upstream and the other tool B is connected downstream in the direction of flow of the treatment material.
  • the central axis 21 of the first tool A is in the first quadrant, the central axis 22 of the second tool B is in the second quadrant.
  • a dashed free space 23 is drawn, into which the downstream and also offset second tool B works.
  • the schematically shown deflector 2 is positioned transversely in the direction of the material flow, as is desired, for example, when emptying.
  • FIG. 8 shows a device similar to FIG. 4, in which the two tools A and B are set somewhat differently with regard to the direction of flow of the material flow.
  • the holding arm 4 is, so to speak, a fulcrum between an immovable part of the stripper plate 2, which extends essentially parallel to the central axis 5 of the container 1, ie towering part of the L-shaped deflector.
  • the other part of the stripper plate 2, which is shown curved in this embodiment of FIG. 8, is small in the direction of the central axis 5, extends as the other leg of the L of the stripper plate 2 along the bottom of the container 1, which is denoted by 32.
  • This arcuate stripper plate is over the angle ⁇ from the dash-dotted to the dashed position and pivoted back.
  • an ongoing control during operation or a fixed position can be preset. In operation, for example, the flow conditions in FIG. 9 are obtained

Landscapes

  • Chemical Kinetics & Catalysis (AREA)
  • Chemical & Material Sciences (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Processing Of Solid Wastes (AREA)
  • Lubricants (AREA)
  • Mixers With Rotating Receptacles And Mixers With Vibration Mechanisms (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Polarising Elements (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Road Signs Or Road Markings (AREA)
  • Magnetic Ceramics (AREA)
  • Paper (AREA)
  • Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

Installation pour la préparation de matériaux coulants avec un récipient (1) tournant autour d'un axe médian incliné (5) et avec une plaque de démoulage de paroi ou de fond (2) disposée de manière fixe par rapport à la paroi intérieure cylindrique du récipient (1), dotée d'une ouverture de décharge (3) située dans le fond du récipient (1) et d'un outil (6) rotatif s'engageant dans le matériau. Afin de réduire la consommation d'énergie tout en conservant de bons rendements de préparation et d'améliorer les performances par rapport au volume disponible de la machine, la présente invention prévoit d'entraîner le récipient (1) à une vitesse de rotation inférieure au point critique, de placer l'outil rotatif (6) exclusivement en aval du point culminant, de ne pas entraver la circulation dans la chambre en amont par l'installation d'objets et de placer la plaque de démoulage (2) à proximité du point culminant du récipient (1).
EP84901737A 1983-04-09 1984-04-09 Installation pour la preparation de materiaux coulants Withdrawn EP0139729A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833312869 DE3312869A1 (de) 1983-04-09 1983-04-09 Vorrichtung zum aufbreiten von fliessfaehigen materialien
DE3312869 1983-04-09

Publications (1)

Publication Number Publication Date
EP0139729A1 true EP0139729A1 (fr) 1985-05-08

Family

ID=6195907

Family Applications (2)

Application Number Title Priority Date Filing Date
EP84101163A Expired EP0125389B1 (fr) 1983-04-09 1984-02-04 Dispositif de préparation de fluides
EP84901737A Withdrawn EP0139729A1 (fr) 1983-04-09 1984-04-09 Installation pour la preparation de materiaux coulants

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP84101163A Expired EP0125389B1 (fr) 1983-04-09 1984-02-04 Dispositif de préparation de fluides

Country Status (14)

Country Link
US (1) US4611922A (fr)
EP (2) EP0125389B1 (fr)
JP (1) JPS6034725A (fr)
AT (1) ATE28582T1 (fr)
AU (1) AU565722B2 (fr)
BR (1) BR8401608A (fr)
CA (1) CA1234098A (fr)
DE (2) DE3312869A1 (fr)
DK (1) DK166068C (fr)
ES (1) ES8504475A1 (fr)
IN (1) IN163092B (fr)
MX (1) MX158528A (fr)
WO (1) WO1984004055A1 (fr)
ZA (1) ZA84783B (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4983046A (en) * 1987-09-04 1991-01-08 Nisshin Flour Milling Co., Ltd. Mixer
ATE93406T1 (de) * 1990-06-25 1993-09-15 Voss Chemie Verfahren und vorrichtung zur herstellung von mittel- oder hoeherviskosen zwei- oder mehrkomponenten-massen durch vermischen der komponenten miteinander.
CH686933A5 (de) * 1992-04-15 1996-08-15 Fischer Georg Giessereianlagen Vorrichtung zum Mischen und Aufbereiten von rieselfaehigen Materialien.
EP0583517B1 (fr) * 1992-08-14 1997-11-12 Materias Primas Monterrey S.A. De C.V. Procédé pour la purification de sable siliceux et autres matières
IT1271271B (it) * 1994-02-08 1997-05-27 Fischer Georg Giessereianlagen Dispositivo per la miscelazione e la preparazione di materiali scorrevoli
DE4429244A1 (de) * 1994-08-18 1996-02-22 Laeis & Bucher Gmbh Verfahren und Vorrichtung zur Materialaufbereitung
WO1997017393A1 (fr) * 1995-11-09 1997-05-15 Daikin Industries, Ltd. Poudre granulee de polytetrafluoroethylene pour le moulage d'articles et processus de production de cette poudre
AT404594B (de) * 1996-08-01 1998-12-28 Chemiefaser Lenzing Ag Verfahren zur herstellung einer cellulosesuspension
DE102005029561A1 (de) * 2005-06-23 2006-12-28 Schenk, Jürgen Aufbereitungseinrichtung und Verfahren
GB2467789A (en) * 2009-02-17 2010-08-18 Leslie Frederick Brown Portable concrete or cement mixer
DE102010027885A1 (de) * 2010-04-16 2012-02-09 Maschinenfabrik Gustav Eirich Gmbh & Co. Kg Mischvorrichtung mit Verschleißschutzauskleidung
US10111558B2 (en) * 2015-03-06 2018-10-30 Blendtec, Inc. Mixer apparatus and method
PL3328529T3 (pl) 2015-07-29 2020-01-31 Disa Industries A/S Urządzenie do mieszania masy formierskiej i sposób mieszania masy formierskiej
JP6400039B2 (ja) 2016-03-24 2018-10-03 本田技研工業株式会社 エンジンバルブ及びその製造方法
CN115611456A (zh) * 2022-10-12 2023-01-17 宋逸阳 一种提高氧气混合效率的污水处理设备

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1216846B (de) * 1962-05-23 1966-05-18 Eirich Wilhelm Austragvorrichtung fuer Schraegtellergranulatoren
DE1191792B (de) * 1962-10-23 1965-04-29 Heidelberg Portland Zement Reiniger fuer Granulierteller oder -trommeln
NL6612509A (fr) * 1966-09-06 1968-03-07
CH490110A (de) * 1969-02-28 1970-05-15 Spemag Ag Mischmaschine
US3746267A (en) * 1971-08-26 1973-07-17 C Myers High viscosity dissolver
JPS5427580A (en) * 1977-08-02 1979-03-01 Mitsui Toatsu Chem Inc Selective herbicides
DE3228983C2 (de) * 1982-08-03 1985-11-07 Hudelmaier, Ingrid, 7900 Ulm Transportbetonmischer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8404055A1 *

Also Published As

Publication number Publication date
DE3312869C2 (fr) 1992-01-02
DK166068C (da) 1993-07-19
AU565722B2 (en) 1987-09-24
US4611922A (en) 1986-09-16
JPH0155894B2 (fr) 1989-11-28
MX158528A (es) 1989-02-09
ES530505A0 (es) 1985-04-16
EP0125389B1 (fr) 1987-07-29
BR8401608A (pt) 1984-11-13
DK105384A (da) 1984-10-10
DK166068B (da) 1993-03-08
ZA84783B (en) 1984-09-26
CA1234098A (fr) 1988-03-15
WO1984004055A1 (fr) 1984-10-25
DE3312869A1 (de) 1984-10-11
ATE28582T1 (de) 1987-08-15
AU2642484A (en) 1984-10-11
DK105384D0 (da) 1984-02-27
ES8504475A1 (es) 1985-04-16
EP0125389A1 (fr) 1984-11-21
IN163092B (fr) 1988-08-06
DE3465025D1 (en) 1987-09-03
JPS6034725A (ja) 1985-02-22

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Inventor name: EIRICH, WILLI