EP0179048B1 - Kugelmühle - Google Patents

Kugelmühle Download PDF

Info

Publication number
EP0179048B1
EP0179048B1 EP19850890253 EP85890253A EP0179048B1 EP 0179048 B1 EP0179048 B1 EP 0179048B1 EP 19850890253 EP19850890253 EP 19850890253 EP 85890253 A EP85890253 A EP 85890253A EP 0179048 B1 EP0179048 B1 EP 0179048B1
Authority
EP
European Patent Office
Prior art keywords
balls
grooves
radius
section
cross
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.)
Expired
Application number
EP19850890253
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0179048A2 (de
EP0179048A3 (en
Inventor
Erich Pichlmaier
Manfred Zoller
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.)
Voestalpine AG
Original Assignee
Voestalpine 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 Voestalpine AG filed Critical Voestalpine AG
Publication of EP0179048A2 publication Critical patent/EP0179048A2/de
Publication of EP0179048A3 publication Critical patent/EP0179048A3/de
Application granted granted Critical
Publication of EP0179048B1 publication Critical patent/EP0179048B1/de
Expired 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
    • B02C17/18—Details
    • B02C17/22—Lining for containers

Definitions

  • a ball mill in which the inner lining has approximately circumferential grooves with a circular segment-shaped cross section is known, for example, from AT-PS 283 092.
  • the distance between the adjacent grooves is smaller than the diameter of the largest ball.
  • the ground material is ground in the grooves and the number of these grooves is limited by the axial extension of the ball mill.
  • the grinding balls wear out during operation, which reduces their radius. At certain intervals, some of the worn balls are removed and replaced with new balls. In operation, the balls in the pile of balls automatically arrange themselves so that the larger, new ones are at the bottom and interact with the grooves. Since the balls to be removed are taken from above, the smaller, worn balls are replaced. The radius of the largest grinding balls is therefore to be understood as the radius of such an exchanged new grinding ball.
  • the balls in the grooves adjust so that the balls run at distances from one another in the grooves. Such a distance promotes the penetration of new regrind into the grooves, and this improves the grinding effect.
  • the design is such that the center distance of the adjacent grooves from one another is equal to the radius of the largest grinding ball multiplied by / 3-. The result of this is that the balls adjust themselves in the grooves in such a way that the balls in each groove lie close together in a row.
  • the balls are arranged like a honeycomb, and in this case the densest ball position results.
  • the radius of the rounding, via which the flanks of the webs merge in cross section is preferably 0.15 to 0.17 of the radius of the groove cross section.
  • Such a dimensioning of the rounding is sufficient to counteract a destruction of the web between adjacent grooves.
  • a rounding off with a larger radius would be effective Reduce seed groove cross-section, and a too large reduction in the groove cross-section is disadvantageous for the grinding effect, since the grinding takes place between the grooves and the balls.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Bearings For Parts Moving Linearly (AREA)
  • Milling Processes (AREA)
EP19850890253 1984-10-15 1985-10-09 Kugelmühle Expired EP0179048B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT3288/84 1984-10-15
AT328884A AT380411B (de) 1984-10-15 1984-10-15 Kugelmuehle

Publications (3)

Publication Number Publication Date
EP0179048A2 EP0179048A2 (de) 1986-04-23
EP0179048A3 EP0179048A3 (en) 1987-01-28
EP0179048B1 true EP0179048B1 (de) 1988-12-07

Family

ID=3548244

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19850890253 Expired EP0179048B1 (de) 1984-10-15 1985-10-09 Kugelmühle

Country Status (7)

Country Link
EP (1) EP0179048B1 (pt)
JP (1) JPS6197049A (pt)
AT (1) AT380411B (pt)
BR (1) BR8505088A (pt)
DE (1) DE3566621D1 (pt)
ES (1) ES8608930A1 (pt)
IN (1) IN163326B (pt)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATA108786A (de) * 1986-04-23 1989-07-15 Voest Alpine Ag Kugelrohrmuehle
AT393234B (de) * 1987-08-20 1991-09-10 Boehler Gmbh Mahlverfahren fuer kugelrohrmuehlen, kugelrohrmuehle und mahlplatte
DD298601A5 (de) * 1989-09-15 1992-03-05 Forschungsinstitut Fuer Aufbereitung,De Innenauskleidung fuer rohrkugelmuehlen
CN100384537C (zh) * 2006-05-12 2008-04-30 刘旭 磨机衬板

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1052215B (de) * 1954-09-29 1959-03-05 Walther Hiller Dipl Ing Panzerplatte fuer Rohrmuehlen
AT283092B (de) * 1965-04-08 1970-07-27 Boehler & Co Ag Geb Innenauskleidung von Kugelmühlen
DD154425A3 (de) * 1980-02-22 1982-03-24 Paul Clemens Innenauskleidung von rohrkugelmuehlen

Also Published As

Publication number Publication date
BR8505088A (pt) 1986-07-29
ES8608930A1 (es) 1986-09-01
DE3566621D1 (en) 1989-01-12
JPS6197049A (ja) 1986-05-15
EP0179048A2 (de) 1986-04-23
ATA328884A (de) 1985-10-15
EP0179048A3 (en) 1987-01-28
ES547831A0 (es) 1986-09-01
AT380411B (de) 1986-05-26
IN163326B (pt) 1988-09-10

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