EP0221079A1 - Broyeur a pilon - Google Patents

Broyeur a pilon

Info

Publication number
EP0221079A1
EP0221079A1 EP19850904222 EP85904222A EP0221079A1 EP 0221079 A1 EP0221079 A1 EP 0221079A1 EP 19850904222 EP19850904222 EP 19850904222 EP 85904222 A EP85904222 A EP 85904222A EP 0221079 A1 EP0221079 A1 EP 0221079A1
Authority
EP
European Patent Office
Prior art keywords
pestle
grinding
mill according
mortar
mortar mill
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Withdrawn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
EP19850904222
Other languages
German (de)
English (en)
Inventor
Peter Sijsling
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.)
F Kurt Retsch GmbH and Co KG
Original Assignee
F Kurt Retsch GmbH and Co KG
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 F Kurt Retsch GmbH and Co KG filed Critical F Kurt Retsch GmbH and Co KG
Publication of EP0221079A1 publication Critical patent/EP0221079A1/fr
Withdrawn legal-status Critical Current

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
    • B02C19/00—Other disintegrating devices or methods
    • B02C19/08—Pestle and mortar

Definitions

  • the invention relates to a mortar mill for laboratory purposes in particular with a grinding bowl which holds the ground material, in which a pestle is movably arranged as a grinding body and a drive device for the pestle
  • the object of the present invention is to provide a mortar mill in which a gastightly closed device can be made available for the grinding process, and which is simple and effective in its operation in such a way that a The grinding bowl can be replaced with little effort.
  • the invention is associated with the advantage that, due to the driving force exerted on the pestle by a rotating magnet, the lid of the grinding bowl is now none
  • a further advantage is obtained with regard to the grinding forces acting in the mill, in that the magnet which rotates the pestle simultaneously pulls the pestle against the base of the grinding bowl, whereby the ground material located there is advantageously crushed before it migrates outwards due to the centrifugal forces and is subjected to a further and final comminution by rolling off the pestle on the wall of the grinding bowl.
  • a permanent magnet on the shaft of a drive motor under the bottom of the grinding bowl, the grinding bowl preferably being eccentrically fixed over the permanent magnet.
  • the permanent magnet is replaced by an electromagnet, which has the advantage that the strength of the acting magnetic force can be regulated and the electromagnet also can be coupled with an interval switch controlling its excitation, which enables an intermittent design of the grinding forces at the bottom of the grinding bowl.
  • a housing 10 preferably houses an electric motor as the drive motor 11, which can be connected to the supply network via an on / off switch 12.
  • An electronic speed control 13 and a timer 14 are also provided for controlling the drive motor 11, as a result of which the grinding conditions can be set exactly.
  • the drive motor 11 extends with its shaft 15 into the region of the upper housing cover, which is set up as a holder 16 for fixing the grinding bowl 17 to be placed thereon.
  • a permanent magnet 19 is arranged on the shaft 15 of the drive motor 11, just below the bottom of the grinding bowl 17, which is set up to rotate with the shaft 15 of the drive motor 11.
  • a grinding stock 22 is also arranged by puncturing.
  • the permanent magnet 19 arranged on the shaft 15 rotates outgoing magnetic forces capture the pestle 20, which has the same shape as the permanent magnet 19, and set it in correspondingly rapid rotary movements; these rotary movements are increased if, as not shown here, the grinding bowl 17 with pestle 20 is arranged eccentrically above the permanent magnet 19.
  • the grinding force exerted on the grinding stock 22 depends on the magnetic force with which the pestle 20 is pulled against the bottom of the grinding bowl 17 and on the centrifugal force caused by the rotational speed, which leads to the rolling of the pestle 20 on the outer wall of the grinding bowl 17 , this centrifugal force essentially depends on the degree of eccentricity with which the grinding bowl 17 is arranged above the rotating permanent magnet 19.
  • the initially coarse ground material is comminuted at the beginning of the grinding movement at the bottom of the grinding bowl 17 by the pestle 20 drawn against it by the action of the magnetic force and then migrates outwards due to its centrifugal force, in order to move there at the edge of the grinding bowl 17 due to the rolling of the Pistills 20 to be subjected to a further comminution.
  • Replacing the grinding bowl 17 after the grinding process has ended is particularly simplified in the exemplary embodiment shown, since only the quick-release device 21 has to be actuated in order to remove the grinding bowl 17 from the mortar mill and to be able to replace it with another, appropriately prepared grinding bowl.
  • an electromagnet can be provided instead of the permanent magnet 19, which advantageously has a stepless regulation of the pestle 20 acting driving and tightening forces possible.
  • the mortar mill designed according to the invention can be used particularly well in the laboratories in order to achieve a corresponding degree of fineness of the ground material, because both the handling of the mortar mill according to the invention and its grinding behavior are significantly improved by the invention.
  • the mill is built less complex and is therefore characterized by high operational reliability.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Disintegrating Or Milling (AREA)
  • Crushing And Grinding (AREA)

Abstract

Les broyeurs à pilon, surtout ceux destinés à l'usage des laboratoires, et qui sont munis d'un récipient pour le matériau de broyage, et dans lesquels est disposé un pilon de façon mobile pour servir d'élément de broyage, présentant l'inconvénient qu'il est impossible de disposer d'un système entièrement fermé étant donné que le pilon est maintenu et guidé pendant le processus de broyage sur un dispositif de maintien qui s'étend à travers le couvercle du récipient de broyage. Pour résoudre ce problème, l'on envisage la transmission au pilon (20) de la force d'entraînement par un moyen magnétique, le récipient de broyage (17) restant immobile.
EP19850904222 1984-08-16 1985-08-14 Broyeur a pilon Withdrawn EP0221079A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843430047 DE3430047A1 (de) 1984-08-16 1984-08-16 Moersermuehle
DE3430047 1984-08-16

Publications (1)

Publication Number Publication Date
EP0221079A1 true EP0221079A1 (fr) 1987-05-13

Family

ID=6243121

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19850904222 Withdrawn EP0221079A1 (fr) 1984-08-16 1985-08-14 Broyeur a pilon

Country Status (4)

Country Link
EP (1) EP0221079A1 (fr)
AU (1) AU4729785A (fr)
DE (1) DE3430047A1 (fr)
WO (1) WO1986001129A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4029392A1 (de) * 1990-09-13 1992-03-19 Carl Paulick Moerser mit geschlossenem probenraum
PL385075A1 (pl) * 2008-04-29 2009-11-09 Wapeco Spółka Z Ograniczoną Odpowiedzialnością Sposób wytwarzania cementu i spoiwa hydraulicznego oraz cement i spoiwo hydrauliczne oraz sposób podnoszenia klasy cementu i zastosowanie cementu
DE202011106042U1 (de) 2011-09-19 2011-11-15 Arman Emami Vorrichtung zum Zerkleinern
DE202017005765U1 (de) 2017-10-23 2017-11-16 Kevin Canamares Navarro Vorrichtung zum Zerkleinern
DE102017010277B4 (de) 2017-10-27 2021-12-23 Kevin Canamares Navarro Vorrichtung zum Zerkleinern
DE102018216190A1 (de) 2018-09-24 2020-03-26 RTI Rauschendorf Tittel Ingenieure GmbH Mahlkörper, Vorrichtung und Verfahren zur Herstellung der Mahlkörper sowie Verwendung

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2837320A (en) * 1956-04-27 1958-06-03 Howard C Baron Magnetic mixers
DE1296952B (de) * 1966-01-14 1969-06-04 Gni Telsky I Str Materialov Elektromagnetische Kugelmuehle
DE1507542C3 (de) * 1966-04-28 1974-02-21 Siegfried Dipl.-Landw. Dr.Agr. 6300 Giessen Heilenz Mahl- und Mischgerät zum Herstellen spektrochemischer oder anderer homogen zu mischender Proben
US3384353A (en) * 1967-05-31 1968-05-21 Cole Parmer Instr & Equipment Magnetic stirrer
US3539155A (en) * 1968-06-19 1970-11-10 Amicon Corp Ultrafiltration batch cell
DE1782168A1 (de) * 1968-07-26 1971-07-22 Alfred Fritsch Ohg Laborgeraet Labor-Kleinmuehle
GB1289122A (fr) * 1969-02-10 1972-09-13
IT1072925B (it) * 1976-09-29 1985-04-13 Ind Ossidi Sinterizzati Ios S Procedimento e dispositivo per la propulsione dei corpi macinanti dei mulini particolarmente di quelli cosiddetti a palle
IT1124722B (it) * 1976-11-02 1986-05-14 Ios Ind Ossidi Sinterizzati Perfezionamento ai dispositivi di propulsione dei corpi macinanti dei mulini ed impianto continuo comportante l'impiego di uno o piu' di tali mulini
DE2914170C2 (de) * 1979-04-07 1983-07-28 Janke & Kunkel GmbH & Co KG Ika - Werk, 7813 Staufen Magnetrührvorrichtung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8601129A1 *

Also Published As

Publication number Publication date
DE3430047A1 (de) 1986-02-27
AU4729785A (en) 1986-03-07
WO1986001129A1 (fr) 1986-02-27

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Inventor name: SIJSLING, PETER