EP0965387A1 - Mühle zum Aufbereiten bzw. Mahlen von festen Materialien - Google Patents
Mühle zum Aufbereiten bzw. Mahlen von festen Materialien Download PDFInfo
- Publication number
- EP0965387A1 EP0965387A1 EP99890194A EP99890194A EP0965387A1 EP 0965387 A1 EP0965387 A1 EP 0965387A1 EP 99890194 A EP99890194 A EP 99890194A EP 99890194 A EP99890194 A EP 99890194A EP 0965387 A1 EP0965387 A1 EP 0965387A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- grinding
- mill
- chamber
- grinding chamber
- drum
- 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
Links
- 239000011343 solid material Substances 0.000 title claims description 3
- 238000003801 milling Methods 0.000 title abstract 2
- 239000004568 cement Substances 0.000 claims abstract description 7
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 6
- 239000011707 mineral Substances 0.000 claims abstract description 6
- 238000005192 partition Methods 0.000 claims description 10
- 238000005096 rolling process Methods 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 20
- 229910000831 Steel Inorganic materials 0.000 abstract description 4
- 239000010959 steel Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 241000273930 Brevoortia tyrannus Species 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
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
- B02C17/10—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 with one or a few disintegrating members arranged in the container
-
- 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
- B02C17/04—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 with unperforated container
- B02C17/06—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 with unperforated container with several compartments
Definitions
- the invention relates to a mill for processing or Grinding of solid materials, especially solid minerals or mineral mixtures, preferably cement clinker and Cement raw materials, with one around a substantially horizontal Axial rotatable cylindrical drum with at least a grinding chamber, being on the inner wall of the drum a grinding path running in the circumferential direction is provided is arranged in the at least one rolling element freely movable and a drum designed as a sieve Partition is arranged.
- Drum mills of this type are known from DE 36 18 461 Al and EP 245 232 A2 known. It is in the direction of Material flow the first grinding chamber with an antechamber at most four, arranged in a groove-shaped tread Steel balls with a diameter of approx. 1 m.
- the second grinding chamber is included as a conventional ball mill located pebble.
- Ball mills can be relatively easily in a stable Condition operated. The maintenance and repair effort is relatively low, as is that Investment costs. Other advantages are operational security and in availability. These reasons indicate that ball mills are still widely used find and still the best-selling grinding equipment today are.
- the object of the invention is to create a mill, in which the disadvantages inherent in the previously known mills to a large extent and with what grinding even coarser regrind in an efficient, economical and energy saving way without high Maintenance and repair work is possible.
- the mill is according to the invention characterized in that a possibly in the drum provided second grinding chamber in a known per se Way is designed as a ball mill and that at the outlet side in the grinding chamber or if necessary between the partition arranged in the two grinding chambers Grinding chamber protruding guide element for the in the Grinding track provided with freely movable rolling elements is.
- This design of the mill ensures that it has already been ground to a certain degree of fineness Grist is separated and fed to the outlet can.
- arranging a guide element for the Rolling elements on the partition is further guaranteed that this gently at the bottom of the groove-shaped Grinding path is returned when it passes through regrind Piece has been taken.
- Another feature of the invention is that the length of the grinding chamber designed as a ball mill corresponds at least to that of the first grinding chamber.
- the mill is special effective and energy-saving grinding possible, whereby this mill with two grinding chambers also like that only one chamber mill for both ready grinding and can also be used as a pre-grinding unit.
- the great advantage of the mill according to the invention is further in that existing grinding plants in a simple manner with such a mill to increase the efficiency of the Grinding can be retrofitted and in a system by series-connected grinding units are used can.
- Fig. 1 is a grinding plant with a mill according to the invention and FIG Mill of Fig. 1 on an enlarged scale
- Fig. 2 another Embodiment of a grinding plant with the invention Mill according to Fig. La
- Fig. 3 shows another embodiment a grinding plant with the mill according to the invention Fig. La
- Fig. 4 the grinder of FIG. 1 with another Embodiment of the mill according to the invention and Fig. 4a 4 according to the invention on an enlarged scale demonstrate.
- Fig. 1 shows a grinding plant that several bunkers 1 for if necessary different regrind, a transport route 2 for the regrind to a mill 3 comprises.
- Fig. La shown in more detail consists of the mill 3 a drum 4 with a grinding chamber 5.
- the drum 4 is by means of a ring gear 6 about a horizontal axis in rotated.
- One is in the grinding chamber 5 the inner wall of the drum 4 circumferential groove-shaped in the direction of rotation Grinding track 7 arranged, in the present case two grinding balls in a row 8 pass on.
- the ratio of the depth of the groove-shaped lies Grinding track 7 to the diameter of the grinding ball 8 in Range between 1: 2 and 1: 3, but this is up to 1:10 can.
- That via the transport route 2 through a feed opening 9 of the grinding chamber 5 is fed by means of massive grinding ball (s), preferably made of steel 8 grind.
- the grinding ball (s) 8 roll through the Rotary movement of the mill 3 in the groove-shaped grinding track 7 and shred the material that is fed onto the grinding track 7 Grist, preferably the diameter of the grinding ball 8 about 10 times the diameter of the maximum feed grain corresponds.
- the shredded material arrives Material through a partition formed as a sieve 10.
- the partition 10 limits the grinding chamber 5 from an outlet 11.
- On the partition 10 is in the grinding chamber 5 protruding guide element 12 for in the groove-shaped grinding track 7 freely movable grinding ball (s) 8 provided.
- a central opening 13 in the Partition wall 10 serves the passage of dust-laden gases, the one finally connected to the outlet 11 Line 14 are derived.
- the mill 3 can be used both for the pre-grinding and be used for the final grinding.
- the crushed Material through the outlet 11 to transport devices 15 passed, the ground material continues to a separator 16, e.g. a windsifter, who the finished shredded material from the coarse material separates.
- the crushed, but still too coarse separation material of the separator 16 is in a system of pre-grinding again fed to the grinding circuit of the mill 3.
- the regrind goes through the grinding cycle until it has the required Has fineness and from the separator 16 as a finished product is deposited.
- the mill 3 can in particular also be used as a pre-grinding unit in a system of grinding units connected in series be used.
- the separating apparatus 16 returns too coarse, pre-shredded material according to FIG. 2 not entirely Grinding circuit fed to the mill, but another downstream grinding unit 17, e.g. a conventional one Ball mill that pre-shredded the upstream mill 3 Finished material to the final fineness.
- another downstream grinding unit 17 e.g. a conventional one Ball mill that pre-shredded the upstream mill 3 Finished material to the final fineness.
- the from the separator 16, still too coarse, pre-shredded Material can be up to 100% downstream Grinder 17 are abandoned.
- the Mill 3 but also as a pre-grinding machine an existing or new, downstream grinding unit 17 can be used.
- the pre-shredded Material directly to the downstream grinding unit 17 fed.
- the regrind passes through the mill 3, the now serves for pre-shredding, only once.
- FIG. 4 corresponds essentially to 1, but it comprises a mill 3 'which formed as a two-chamber mill and by a ring gear 6 rotatable around a horizontal axis of rotation is.
- One grinding chamber 5 'into which the feed opening 9 flows out, is like the grinding chamber 5 of the mill 3 (Fig. La) executed.
- FIG. 4a is in turn in the grinding chamber 5 'on the inner wall of the Drum 4 'in the direction of rotation groove-shaped grinding track 7 'arranged, in the present case two in succession Roll the grinding balls 8 '.
- One as a sieve formed partition 10 'separates the first grinding chamber 5' from a second grinding chamber 5 ".
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
Abstract
Description
Claims (2)
- Mühle zum Aufbereiten bzw. Mahlen von festen Materialien, insbesondere festen Mineralien oder Mineralgemengen, vorzugsweise Zementklinker und Zementrohstoffen, mit einer um eine im wesentlichen horizontalen Achse drehbaren zylinderförmigen Trommel mit mindestens einer Mahlkammer, wobei an der Innenwand der Trommel eine in Umfangsrichtung verlaufende Mahlbahn vorgesehen ist, in der mindestens ein Wälzkörper frei beweglich angeordnet ist, und in der Trommel eine als Sieb ausgebildete Trennwand angeordnet ist, dadurch gekennzeichnet, daß eine gegebenenfalls in der Trommel vorgesehene zweite Mahlkammer in an sich bekannter Weise als Kugelmühle ausgebildet ist und daß an der auslaßseitig in der Mahlkammer (5) oder gegebenenfalls zwischen den beiden Mahlkammern (5, 5')angeordnete Trennwand (10, 10') ein in die Mahlkammer (5, 5') hineinragendes Führungselement (12, 12') für den in der Mahlbahn (7, 7') frei beweglich angeordneten Wälzkörper (8, 8') vorgesehen ist.
- Mühle nach Anspruch 1, daß die Länge der als Kugelmühle ausgebildeten Mahlkammer (5") mindestens derjenigen der ersten Mahlkammer (5) entspricht.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT104498 | 1998-06-17 | ||
| AT104498 | 1998-06-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0965387A1 true EP0965387A1 (de) | 1999-12-22 |
| EP0965387B1 EP0965387B1 (de) | 2006-08-23 |
Family
ID=3505371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19990890194 Expired - Lifetime EP0965387B1 (de) | 1998-06-17 | 1999-06-16 | Mühle zum Aufbereiten bzw. Mahlen von festen Materialien |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0965387B1 (de) |
| DE (1) | DE59913789D1 (de) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284323A (zh) * | 2010-06-16 | 2011-12-21 | 坡利西斯股份公司 | 用于借助管磨机研磨磨料的方法 |
| CN119909827A (zh) * | 2025-03-11 | 2025-05-02 | 江苏地质矿产设计研究院(中国煤炭地质总局检测中心) | 一种基于球磨煤基固废钝化材料的集成制备装置 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE160215C (de) * | 1904-07-06 | |||
| US3987969A (en) * | 1975-03-10 | 1976-10-26 | Kvaerner Brug A/S | Method and disc mill for grinding of material |
| DE3618461A1 (de) | 1985-06-04 | 1986-12-04 | Voest-Alpine Ag, Linz | Kugelrohrmuehle |
| EP0245232A2 (de) | 1986-04-23 | 1987-11-11 | VOEST-ALPINE Aktiengesellschaft | Kugelrohrmühle |
-
1999
- 1999-06-16 DE DE59913789T patent/DE59913789D1/de not_active Expired - Fee Related
- 1999-06-16 EP EP19990890194 patent/EP0965387B1/de not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE160215C (de) * | 1904-07-06 | |||
| US3987969A (en) * | 1975-03-10 | 1976-10-26 | Kvaerner Brug A/S | Method and disc mill for grinding of material |
| DE3618461A1 (de) | 1985-06-04 | 1986-12-04 | Voest-Alpine Ag, Linz | Kugelrohrmuehle |
| EP0245232A2 (de) | 1986-04-23 | 1987-11-11 | VOEST-ALPINE Aktiengesellschaft | Kugelrohrmühle |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284323A (zh) * | 2010-06-16 | 2011-12-21 | 坡利西斯股份公司 | 用于借助管磨机研磨磨料的方法 |
| CN102284323B (zh) * | 2010-06-16 | 2014-11-26 | 坡利西斯股份公司 | 用于借助管磨机研磨磨料的方法 |
| CN119909827A (zh) * | 2025-03-11 | 2025-05-02 | 江苏地质矿产设计研究院(中国煤炭地质总局检测中心) | 一种基于球磨煤基固废钝化材料的集成制备装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0965387B1 (de) | 2006-08-23 |
| DE59913789D1 (de) | 2006-10-05 |
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