EP0491673A2 - Activateur - Google Patents

Activateur Download PDF

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Publication number
EP0491673A2
EP0491673A2 EP91890300A EP91890300A EP0491673A2 EP 0491673 A2 EP0491673 A2 EP 0491673A2 EP 91890300 A EP91890300 A EP 91890300A EP 91890300 A EP91890300 A EP 91890300A EP 0491673 A2 EP0491673 A2 EP 0491673A2
Authority
EP
European Patent Office
Prior art keywords
working tools
ring disks
rotors
ring
disks
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
EP91890300A
Other languages
German (de)
English (en)
Other versions
EP0491673B1 (fr
EP0491673A3 (en
Inventor
Juhász Dipl.-Ing. Laszló
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 EP0491673A2 publication Critical patent/EP0491673A2/fr
Publication of EP0491673A3 publication Critical patent/EP0491673A3/de
Application granted granted Critical
Publication of EP0491673B1 publication Critical patent/EP0491673B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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

Definitions

  • the invention relates to an activator for mixing, crushing or the like, preferably for activating materials, with at least two rotors running in opposite directions, which carry striking or working tools, preferably plates or blades, arranged in concentric circles, which are fastened on both sides to ring disks of the rotors are, the working tools extend radially substantially from the inner edge to the outer edge of the respective ring discs.
  • Vibration, ball or pin or cage mills have been proposed as suitable devices for carrying out the above-mentioned treatments.
  • Vibration and ball mills have a narrow range of application, which depends on the material parameters and the energetically favorable resonance range of the device itself. Furthermore, these mills lead to undesirable changes inside the resulting particles, which disadvantageously reduces their strength. The necessary long treatment time and the discontinuous operation in these devices also have a disadvantageous effect.
  • Pin mills such as those described in AT-PS 362 289, can be adapted to specific characteristics of the input material by regulating the speed. They basically consist of two opposing grinding disks, which with concentric circles of striking or working tools are provided. The concentric circles of these work tools are moved alternately in opposite directions. For the cross-section of these work tools, circular, triangular or, as in AT-PS 325 396, plate-shaped or scoop-shaped shapes have been specified.
  • the object of the present invention was therefore to develop a device with which a precisely defined number of accelerations with predeterminable energy communication for each particle is possible and which is suitable for continuous operation with a single pass of the material.
  • each particle can now be influenced in a targeted manner, so that the total mass of the continuous material and not just a part is influenced by it.
  • the particles are exposed to a precisely defined number of accelerations, which is determined by the number of rotors. By choosing the speed of rotation, the frequency of the accelerations and their strength can also be determined precisely, so that the energy transmission to the particles can be precisely determined.
  • the mechanical energy is thus converted to a very high degree and in a definable manner, which means that considerably larger throughput quantities and continuous operation, ie continuous material flow through the device according to the invention, can be achieved, as is not possible with conventional pin or plate mills .
  • the plates are not subjected to a grinding or rubbing process, ie no squeezing force, but rather accelerated until they have reached a very high speed, whereupon they reach the next stage, ie the next ring of work tools. This rotates in the opposite direction, therefore slows down the granules and accelerates them in the other direction.
  • the overlap is formed by an apron which is fixed or removable on one of the ring disks and is slightly offset inwards or outwards relative to the respective ring disk plane. This results in an increase in the sealing effect and a reduction in the stress on the sealing elements.
  • the overlap is formed by an edge region of reduced thickness of one of the ring disks, which engages in an annular groove on the edge of the adjacent ring disk.
  • sealing elements for example flexible plates or broom elements
  • FIG. 1 shows a longitudinal section along the axis of rotation of the device according to the invention
  • FIG. 2 shows a cross section along the line II-II of FIG. 1
  • FIGS. 3a and 3b each show a detailed cross section of the edge regions of two adjacent ring cages according to two advantageous embodiments of the invention.
  • At least two of these rotors or cages are available, but depending on requirements and the desired impact or Acceleration number can be provided as many as desired, preferably three such rotors are present.
  • the energy information on the particles can be exactly defined in the device according to the invention.
  • the working tools 6 of each rotor now run radially essentially from the inner edge to the outer edge of the respective ring disks, for example 3 and 3 ', so that the gaps between the working tools of adjacent rotors are kept as small as possible.
  • the work tools 6 are straight plates, plates made up of sections assembled at certain angles or blades shaped like wings.
  • This feature makes it possible to generate a very specific and precisely defined material flow through the device, which was not possible, for example, with the conventional pin or plate mills with small impact tools.
  • Shovels or plates in a shovel-shaped arrangement have the advantage that they direct the air flow in the device and thus also the material flow better than completely straight plates, but the influence in the sense of the impact or The acceleration effect is the same in both variants.
  • additional sealing elements 8 can be provided at the radially inner end of the working tools 6, for example in the form of flexible plates made of rubber, plastic etc., or in the form of broom elements. These sealing elements are preferably interchangeably attached.
  • Material particles to be treated which are e.g. a funnel (not shown) in the central area of one of the discs 1 or 2 are fed from the innermost of the rotors and its working tools 3, 3 '; 6 detected and accelerated. Due to the centrifugal force, the material from the innermost rotor is accelerated in the direction of the closest outer ring of work tools and is grasped by the latter. This causes a sudden deceleration and renewed acceleration in the opposite direction. This process is repeated between two adjacent rotors until the particles are finally thrown outwards from the outermost rotor ring. They accumulate on the inner wall of the housing (not shown) around the rotors and are finally removed from the device in any manner.
  • each cage Because the entire cross-sectional area of each cage is covered by the working tools, all particles in each cage are detected so that they are subjected to a precisely defined number of accelerations or reversal of movement and therefore receive an energy distribution which is dependent on the number of rotors.
  • fan blades can be provided on the outermost rotor in a manner known per se.
  • the gaps between adjacent washers are sealed.
  • the washers of the individual betors form a closed system with one another, which means the gaps between the individual rotors are largely prevented from escaping before the end of the complete treatment. This ensures that each particle is really communicated exactly the predetermined number of accelerations.
  • Said sealing can now be carried out in various ways. In addition to seals, which are provided in the form of sealing rings between adjacent ring disks, for example 3 and 4 ', and are not permanently connected to any of the said ring disks, simpler solutions are preferably used.
  • FIGS. 3a and 3b Two examples of the latter variant are shown in FIGS. 3a and 3b.
  • 3a shows a variant in which annular aprons 7 extend from the inside of one of the inner rotors in the direction of the next outer rotor in each case.
  • a particularly good sealing effect results from the fact that the working tools are provided on the inner edge of the outer actuator with incisions 9, in which the outer edges of the annular aprons 7 are received.
  • the aprons 7 can also be guided only up to the inner edge of the working tools 6 of the outer rotor, which leads to simplifications in the production.
  • this embodiment also ensures the proper functioning of the device according to the invention in any position, i.e. even when the axis of rotation of the concentric rotors is essentially vertical.
  • the second factor for a precisely defined energy communication is the strength of the strikes on the respective particle, or more precisely, the size of the acceleration to which the individual particles are subjected. This is determined by the speed of rotation of the rotors.
  • the appropriate treatment sequence can now be set for any material by suitable selection of the rotational speed of the striking tools and the number of stages or rotors arranged one behind the other.
  • the aprons can be rigid or more or less flexible, and can be fixed or detachably attached to the respective rotor or its edge area.
  • the inner and outer edge areas of the respective betors are preferably already provided with the aprons mentioned, but already existing machines can also be equipped with appropriately shaped retrofit parts.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Cosmetics (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Crushing And Grinding (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
EP91890300A 1990-12-17 1991-12-09 Activateur Expired - Lifetime EP0491673B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT2563/90 1990-12-17
AT0256390A AT395295B (de) 1990-12-17 1990-12-17 Aktivator

Publications (3)

Publication Number Publication Date
EP0491673A2 true EP0491673A2 (fr) 1992-06-24
EP0491673A3 EP0491673A3 (en) 1992-08-19
EP0491673B1 EP0491673B1 (fr) 1995-05-17

Family

ID=3536514

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91890300A Expired - Lifetime EP0491673B1 (fr) 1990-12-17 1991-12-09 Activateur

Country Status (4)

Country Link
EP (1) EP0491673B1 (fr)
AT (2) AT395295B (fr)
DE (1) DE59105523D1 (fr)
ZA (1) ZA919830B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1035237A3 (fr) * 1999-03-09 2001-08-22 Rolf Prof. Dr. Hesch Appareil pour la manipulation ou pour le traitement ulterieur, notamment pour le déchiquetage de materiaux ou de melange de materiaux
RU2242285C1 (ru) * 2003-03-05 2004-12-20 Южно-Российский государственный университет экономики и сервиса Кулачковая мельница
CN103769291A (zh) * 2013-12-11 2014-05-07 中冶长天国际工程有限责任公司 一种磨矿机给矿浓度控制的方法和装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5460444A (en) * 1993-04-28 1995-10-24 Howorka; Franz Apparatus for the treatment of solid, liquid and/or gaseous materials
CN103495486B (zh) * 2013-10-17 2015-08-05 中冶长天国际工程有限责任公司 一种磨矿机给矿量控制的方法和装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB943319A (en) * 1962-03-12 1963-12-04 J M J Ind Inc Disintegrating mill
DE2826553C2 (de) * 1978-06-16 1982-06-09 Special'noe konstruktorsko-technologičeskoe bjuro dezintergrator, Tallin Rotor für Stiftmühle zum Zerkleinern von Nahrungsmitteln
SU1306595A1 (ru) * 1983-12-05 1987-04-30 Таллинский Политехнический Институт Дезинтегратор
DE3802260A1 (de) * 1988-01-27 1989-08-10 Kasa Technoplan Rotierende desintegrationsvorrichtung

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1035237A3 (fr) * 1999-03-09 2001-08-22 Rolf Prof. Dr. Hesch Appareil pour la manipulation ou pour le traitement ulterieur, notamment pour le déchiquetage de materiaux ou de melange de materiaux
US6435433B1 (en) 1999-03-09 2002-08-20 Rolf Hesch Device for treating of processing and especially for disintegrating of substances or compounds
RU2242285C1 (ru) * 2003-03-05 2004-12-20 Южно-Российский государственный университет экономики и сервиса Кулачковая мельница
CN103769291A (zh) * 2013-12-11 2014-05-07 中冶长天国际工程有限责任公司 一种磨矿机给矿浓度控制的方法和装置

Also Published As

Publication number Publication date
EP0491673B1 (fr) 1995-05-17
DE59105523D1 (de) 1995-06-22
ATE122583T1 (de) 1995-06-15
ATA256390A (de) 1992-04-15
AT395295B (de) 1992-11-10
ZA919830B (en) 1993-08-06
EP0491673A3 (en) 1992-08-19

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