EP0244701A2 - Procédé pour le broyage de coke granuleux et de ses produits de désintégration - Google Patents

Procédé pour le broyage de coke granuleux et de ses produits de désintégration Download PDF

Info

Publication number
EP0244701A2
EP0244701A2 EP87105948A EP87105948A EP0244701A2 EP 0244701 A2 EP0244701 A2 EP 0244701A2 EP 87105948 A EP87105948 A EP 87105948A EP 87105948 A EP87105948 A EP 87105948A EP 0244701 A2 EP0244701 A2 EP 0244701A2
Authority
EP
European Patent Office
Prior art keywords
grinding media
grinding
hollow bodies
mills
hollow
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Withdrawn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
EP87105948A
Other languages
German (de)
English (en)
Other versions
EP0244701A3 (fr
Inventor
Karl-Ludwig Dr. Metzger
Gerhard Dipl.-Ing. Giersiepen
Dipl.-Ing. Keller Wolfgang
Karl-Friedrich Dr. Thom
Peter Dr. Schmidt
Horst Dipl.-Ing. Siebert
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.)
Bayer AG
Original Assignee
Bayer 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 Bayer AG filed Critical Bayer AG
Publication of EP0244701A2 publication Critical patent/EP0244701A2/fr
Publication of EP0244701A3 publication Critical patent/EP0244701A3/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Withdrawn legal-status Critical Current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
    • 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
    • B02C17/20—Disintegrating members

Definitions

  • the invention relates to a method for comminuting granular cokes and their secondary products in mills, in particular in ball, tube or vibratory mills, under the influence of grinding media.
  • mills with loose grinding media the ground material is comminuted by the impact and friction forces generated by the grinding media.
  • the size of the shredding depends on the number, shape and weight of the grinding media.
  • the invention is therefore based on the object, in a grinding process using grinding media, in particular in tube, ball or vibrating mills, in the comminution of granular cokes and their secondary products with different physical properties by an improved adaptation of the grinding media to the product properties To achieve grain size distribution.
  • the present invention thus relates to a process for comminuting granular coke and its secondary products in mills, in particular ball, tube or vibrating mills, under the influence of grinding media, which is characterized in that the grinding media are hollow bodies.
  • Pipes or pipe sections or hollow balls are preferably used as grinding media.
  • the hollow bodies can be open (tubes) or closed (hollow spheres).
  • a preferred embodiment of the method according to the invention is that the hollow bodies are poured out with a material which has a significantly lower density than the hollow body walls.
  • a material can e.g. B. be plastic.
  • the weight of the grinding media can be continuously adapted to the particular grinding problem in a wide range by adjusting the grinding media wall thickness.
  • the grinding media according to the invention preferably have an outside diameter between 10 mm and 30 mm and wall thicknesses of 2 mm and 5 mm.
  • grinding body densities in the range from 2.0 g / cm 3 to 6.5 g / cm 3 can be achieved without difficulty.
  • the grinding media according to the invention can be used, in particular, for grinding coke and its secondary products.
  • the filtering properties of the lignite coke used as a filter medium have also been significantly improved.
  • a suspension produced with the lignite coke comminuted according to the invention was able to achieve a throughput which was more than 20% higher than with the lignite coke comminuted with rods.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Working-Up Tar And Pitch (AREA)
  • Disintegrating Or Milling (AREA)
EP87105948A 1986-05-03 1987-04-23 Procédé pour le broyage de coke granuleux et de ses produits de désintégration Withdrawn EP0244701A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863615104 DE3615104A1 (de) 1986-05-03 1986-05-03 Verfahren zum zerkleinern von koernigen koksen und deren folgeprodukten in muehlen
DE3615104 1986-05-03

Publications (2)

Publication Number Publication Date
EP0244701A2 true EP0244701A2 (fr) 1987-11-11
EP0244701A3 EP0244701A3 (fr) 1988-08-10

Family

ID=6300162

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87105948A Withdrawn EP0244701A3 (fr) 1986-05-03 1987-04-23 Procédé pour le broyage de coke granuleux et de ses produits de désintégration

Country Status (2)

Country Link
EP (1) EP0244701A3 (fr)
DE (1) DE3615104A1 (fr)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191224448A (en) * 1912-10-25 1913-06-26 William Fennell Improvements in or in connection with Tube Mills.
DE322872C (de) * 1912-11-06 1920-07-10 William Fennell Mahlkoerper, deren Durchmesser kleiner ist als ihre Laenge, zur Ausuebung einer Zerkleinerung in Rohrmuehlen
DE483891C (de) * 1926-03-14 1929-10-08 Maschb Akt Ges Kugel fuer Fliehkraftkugelmuehlen
CH129281A (de) * 1927-11-17 1928-12-01 Keller & Co Mahlkörper für Rohr- und Verbundmühlen.
GB284580A (en) * 1927-12-12 1928-02-02 Otto Kordt Improvements in hollow grinding bodies for ball-, drum- and tubular mills
CH177325A (de) * 1934-08-31 1935-05-31 Kordt & Rosch Aktiengesellscha Kugelförmiger Mahlkörper für Mühlen aller Art.
DE640307C (de) * 1935-04-27 1937-07-05 Otto Kordt Hohlmahlkoerper
DE1607600A1 (de) * 1967-12-23 1969-10-02 Siteg Siebtech Gmbh Verfahren und Vorrichtung zur Aufbereitung mittels Flotation

Also Published As

Publication number Publication date
EP0244701A3 (fr) 1988-08-10
DE3615104A1 (de) 1987-11-05

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RIN1 Information on inventor provided before grant (corrected)

Inventor name: THOM, KARL-FRIEDRICH, DR.

Inventor name: KELLER WOLFGANG, DIPL.-ING.

Inventor name: SCHMIDT, PETER, DR.

Inventor name: GIERSIEPEN, GERHARD, DIPL.-ING.

Inventor name: METZGER, KARL-LUDWIG, DR.

Inventor name: SIEBERT, HORST, DIPL.-ING.