EP0169140A2 - Nassmahlvorrichtung - Google Patents

Nassmahlvorrichtung Download PDF

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Publication number
EP0169140A2
EP0169140A2 EP85401395A EP85401395A EP0169140A2 EP 0169140 A2 EP0169140 A2 EP 0169140A2 EP 85401395 A EP85401395 A EP 85401395A EP 85401395 A EP85401395 A EP 85401395A EP 0169140 A2 EP0169140 A2 EP 0169140A2
Authority
EP
European Patent Office
Prior art keywords
grinding
agitator
container
elements
grinding apparatus
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Withdrawn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
EP85401395A
Other languages
English (en)
French (fr)
Inventor
Jacques Brenot
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.)
FERRERI FRIEDRICH WERNER
Original Assignee
FERRERI FRIEDRICH WERNER
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 FERRERI FRIEDRICH WERNER filed Critical FERRERI FRIEDRICH WERNER
Publication of EP0169140A2 publication Critical patent/EP0169140A2/de
Withdrawn legal-status Critical Current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
    • 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

Definitions

  • the present invention relates to a wet phase grinding apparatus comprising on the one hand a container containing grinding elements, such as balls, and traversed by a stream of a slurry of the product to be ground and, on the other hand, a agitator arranged inside said container and intended to put said grinding elements in motion.
  • a container containing grinding elements, such as balls, and traversed by a stream of a slurry of the product to be ground and, on the other hand, a agitator arranged inside said container and intended to put said grinding elements in motion.
  • an apparatus respecting the preceding observations has a yield approximately twice that of the preceding apparatuses.
  • the object of the present invention is to define an apparatus which overcomes these various drawbacks, while making it possible to comply with the laws resulting from the observations mentioned above.
  • the manufacturing costs of the device according to the invention are significantly lowered, all of the wearing parts, by the simplicity of their shapes, allowing a very large use of foundry.
  • the wet phase grinding apparatus comprising, on the one hand, a container containing grinding elements and traversed by a stream of a slurry of the product to be grinded, and, on the other hand, an agitator arranged inside said container and intended to set said grinding elements in motion, is remarkable in that said agitator has the shape of a body of revolution whose outer wall defines with the inner wall of said container a peripheral annular grinding chamber whose volume increases in the direction of flow of said slurry.
  • the agitator consists of a body of revolution which can have a large surface facing the container, instead of being a simple shaft provided with fins or blades as in the prior art. Consequently, in the apparatus according to the invention, the agitator has a large heat exchange surface allowing the elimination of the heat generated during grinding. The performance of the device is therefore improved.
  • the agitator can be produced in the form of a hollow body, which is crossed by a stream of cooling fluid passing through the shafts used for mounting said agitator relative to said container.
  • a cooling system is also provided for said container.
  • the periphery of the agitator carries stirring elements projecting into said grinding chamber. It is advantageous that the periphery of the container then carries elements for braking the movement of the grinding elements, also projecting into said grinding chamber and arranged between said stirring elements linked to the agitator.
  • the interior wall of the container and the exterior wall of the agitator are coaxial conical surfaces, converging in the same direction.
  • the apparatus according to the invention shown schematically in this single figure comprises a stator 1 constituted by a frustoconical envelope 2 of axis X-X, closed at its ends by flanges 3 and 4, respectively.
  • a rotor 5 Inside the stator 1 is arranged a rotor 5, constituted by a frustoconical envelope 6, closed at its ends by flanges 7 and 8, respectively.
  • the rotor 5 is coaxial with the stator 1 and is mounted rotatable relative to the latter by means of shafts 9 and 10, for example integral with flanges 7 and 8 respectively.
  • Shafts 9 and 10 pass through bearing liners 11 and 12, sealed under pressure.
  • the stator 1 has an inlet 13 and an outlet 14 for the slurry of the product to be ground, as well as an inlet 15 and an outlet 16 for the grinding balls (not shown in the drawing for clarity).
  • the frustoconical envelopes 2 and 6 converge in the same direction and they delimit between them a volume 17 in the form of a frustoconical crown constituting the grinding chamber containing the balls.
  • the shafts 9 and 10 are hollow, so that they can be used to circulate inside the casing 6 of the rotor 5 a cooling fluid, for example water from tree 9 to tree 10.
  • a cooling fluid for example water from tree 9 to tree 10.
  • the casing 2 of the stator 1 is provided with a double wall provided with a network of channels 18 for the circulation of a cooling fluid.
  • each of the thermal walls 2 and 6 are chosen so that the variation in the volume of the frustoconical crown 17 constituting the working chamber increases in the direction of the flow of the slurry between the inlet 13 and the outlet 14 It is of course possible to adjust said angles at the top so that this increase in the volume of the frustoconical crown 17 follows any desired law.
  • the outer surface of the casing 6 of the rotor 5 carries an archimedean screw whose turns 19 are arranged in such a way that each of them is each time in the slot defined by two consecutive turns 20 of the inner wall of the stator 1 which also carries an archimedean screw of identical pitch.
  • the active elements for the agitation provided by the rotor 5 may be in the form of discontinuous turns, of equal pitch but in opposite directions, alternated on the external surface of the rotor.
  • the internal surface of the stator carries turns of the same pitch, located in the spaces delimited by the turns of the stator.
  • the flanges 7 and 8 of the rotor 5 carry stirring fins 21 and 22, respectively.
  • the apparatus shown in the figure is associated with a motor for driving the rotor 5, as well as pumps for circulating the slurry of product to be ground and the coolants.
  • the motor and these pumps are not shown in the figure.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
EP85401395A 1984-07-20 1985-07-09 Nassmahlvorrichtung Withdrawn EP0169140A2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8411539A FR2567772A1 (fr) 1984-07-20 1984-07-20 Appareil de broyage en phase humide
FR8411539 1984-07-20

Publications (1)

Publication Number Publication Date
EP0169140A2 true EP0169140A2 (de) 1986-01-22

Family

ID=9306330

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85401395A Withdrawn EP0169140A2 (de) 1984-07-20 1985-07-09 Nassmahlvorrichtung

Country Status (2)

Country Link
EP (1) EP0169140A2 (de)
FR (1) FR2567772A1 (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4973003A (en) * 1989-07-31 1990-11-27 Chen Chi Shiang Grinding apparatus
AU621505B1 (en) * 1990-08-09 1992-03-12 Chi-Shiang Chen Grinding apparatus
EP0514562A1 (de) * 1991-05-21 1992-11-25 Inoue Mfg., Inc. Kontinuierliche Dispergiervorrichtung
WO2007020407A3 (en) * 2005-08-12 2007-07-12 Brian Sulaiman The milling system
JP2017205720A (ja) * 2016-05-20 2017-11-24 フロイント・ターボ株式会社 ビーズミル
WO2019087274A1 (ja) * 2017-10-31 2019-05-09 フロイント・ターボ株式会社 ビーズミル
CN116571329A (zh) * 2023-05-11 2023-08-11 徐州工程学院 一种黑蒜蒜渣制粉装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111530567B (zh) * 2020-04-14 2022-04-22 安徽东方钙业有限公司 超高速精细化粉碎研磨机

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1214516B (de) * 1963-03-06 1966-04-14 Netzsch Maschinenfabrik Ruehrwerksmuehle zum kontinuierlichen Feinstzerkleinern und Dispergieren von Feststoffen
DE1233237B (de) * 1963-11-13 1967-01-26 Netzsch Maschinenfabrik Ruehrwerksmuehle zum kontinuierlichen Feinstzerkleinern und Dispergieren von Feststoffen
US3570775A (en) * 1967-12-21 1971-03-16 Gen Electric Mica delamination
DE2458841C2 (de) * 1974-12-12 1985-03-14 Draiswerke Gmbh, 6800 Mannheim Rührwerksmühle
DE3038794C2 (de) * 1980-10-14 1994-02-17 Buehler Ag Geb Rührwerksmühle

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4973003A (en) * 1989-07-31 1990-11-27 Chen Chi Shiang Grinding apparatus
FR2665843A1 (fr) * 1989-07-31 1992-02-21 Chi Shiang Chen Appareil broyeur.
AU621505B1 (en) * 1990-08-09 1992-03-12 Chi-Shiang Chen Grinding apparatus
EP0514562A1 (de) * 1991-05-21 1992-11-25 Inoue Mfg., Inc. Kontinuierliche Dispergiervorrichtung
WO2007020407A3 (en) * 2005-08-12 2007-07-12 Brian Sulaiman The milling system
US7857247B2 (en) 2005-08-12 2010-12-28 Brian Sulaiman Milling system
JP2017205720A (ja) * 2016-05-20 2017-11-24 フロイント・ターボ株式会社 ビーズミル
WO2019087274A1 (ja) * 2017-10-31 2019-05-09 フロイント・ターボ株式会社 ビーズミル
CN116571329A (zh) * 2023-05-11 2023-08-11 徐州工程学院 一种黑蒜蒜渣制粉装置

Also Published As

Publication number Publication date
FR2567772A1 (fr) 1986-01-24

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Legal Events

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

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

AK Designated contracting states

Designated state(s): CH DE GB IT LI NL

18W Application withdrawn

Withdrawal date: 19851212

RIN1 Information on inventor provided before grant (corrected)

Inventor name: BRENOT, JACQUES