EP0982074A1 - Rührwerksmühle - Google Patents
Rührwerksmühle Download PDFInfo
- Publication number
- EP0982074A1 EP0982074A1 EP99114311A EP99114311A EP0982074A1 EP 0982074 A1 EP0982074 A1 EP 0982074A1 EP 99114311 A EP99114311 A EP 99114311A EP 99114311 A EP99114311 A EP 99114311A EP 0982074 A1 EP0982074 A1 EP 0982074A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- grinding
- agitator
- mouth
- return line
- grinding chamber
- 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
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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
Definitions
- the invention relates to an agitator mill.
- the invention has for its object a agitator mill with a external grinding aid circulation to create an even and stable circulation of the auxiliary grinding bodies takes place.
- the confluence of the Auxiliary grinding body return line to the grinding chamber is on the one hand radial to the axis of the agitator shaft as close as possible to the agitator shaft and on the other hand at the end of the grinding chamber, where the regrind supply line flows into.
- each is a so-called horizontal agitator mill.
- This has a machine frame essentially formed by a base plate 1, which is supported on the floor.
- a possibly speed-controllable drive motor 2 which is provided with a V-belt pulley 3.
- a bearing housing 4 is arranged on the machine frame 1, in which a drive shaft 5 is rotatably mounted.
- the drive shaft 5 is also at its end adjacent to the V-belt pulley 3 with a V-belt pulley 6 provided with the V-belt pulley 3 of the drive motor 2 is in drive connection via V-belt 7.
- the V-belt pulleys 3, 6 and the V-belts 7 are provided with a cover 8.
- a cylindrical grinding container 9 with its lid 10 by means of threaded bolts 11 attached.
- the grinding container 9 is on its the bearing housing 4 opposite end closed by a bottom 12.
- an agitator 14 arranged, the one with the drive shaft 5 rotatably connected, flying Staged agitator shaft 15.
- stirring tools 16 attached, with the stirring discs 17 Passage openings 18 are formed.
- the agitator shaft 15, the drive shaft 5 and the grinding container 9 have a common axis 19.
- a regrind feed line 20 opens through the cover 10 into the grinding chamber 13, through which the grinding chamber 13 is to be treated by means of a pump 20a Grist is fed. In the area of the bottom 12 opens Grist discharge line 21 from the grinding chamber 13, through the finished treated Regrind is removed.
- This discharge line 21 is at least one Separating device 22 assigned, which is usually at least a so-called sieve cartridge that protrudes into the grinding chamber 13 namely in the space between the floor 12 and the nearest one Stirring disc 17.
- sieve cartridges have a design as they for example from DE-PS 20 37 258 (corresponds to US Pat. No. 3,780,957) and DE 35 36 857 C (corresponds to US Pat. No. 4,739,936) are known.
- the grinding room 13 is to a considerable extent, for example 70 to 90%, with Grinding auxiliary bodies 23 filled.
- the separating device 22 is designed that such auxiliary grinding bodies 23 do not get into the discharge line 21 can.
- All embodiments have a grinding aid return line 24 on, which opens out adjacent to the separating device 22 from the grinding chamber 13 and adjacent to the regrind feed line 20 back into the grinding chamber flows into.
- the junction 25 is located near the Agitator shaft 15, that is in the region of a local negative pressure.
- the mouth 26 of the return line 24, however, is in the wall 27 of the grinding container 11, i.e. on the periphery of the grinding chamber 13, that is in Local overpressure range. This makes a particularly good and effective circulation of the auxiliary grinding bodies 23 from the area of the regrind supply to the area of the separating device 22 and back to the area of the Grist feed reached.
- a shut-off valve 28 to partially or completely block the return line 24 can be provided, by means of which the degree of grinding aid circulation being affected.
- the mouth 26 is located the grinding aid return line 24 immediately next to the connection the discharge line 21 to the separating device 22, that is to say adjacent to the floor 12.
- the mouth 25 of the return line 24 is between the two stirring discs 17 adjacent to the cover 10 near the immediate vicinity of the agitator shaft 15.
- To initiate the emerging from the mouth 25 of the return line 24 into the grinding chamber 13 To improve grinding aid body 23 are the passage openings 18a in the agitator disc 17a inclined towards the agitator shaft 15. At the stirring disk 17a is seen from the cover 10 second stirring disc, which is adjacent to the junction 25 on the Mouth 26 facing side is arranged.
- the return line 24 is in this area as radial, that is to say, dip tube 30 displaceable transversely to axis 19 in direction 29. Because of the formation between adjacent stirring disks 17, only in Fig. 2, more precisely indicated circulation flow 31 prevails near the agitator shaft 15 the highest negative pressure in the grinding chamber 13. On the periphery, ie in the area of wall 27, there is, however highest pressure in the grinding chamber 13. This applies in particular to the area radial around a stirring disk 17. For this reason, the last stirring disk 17b, arranged radially to the mouth 26 of the return line 24 is twice as thick, i.e. with twice the axial extent as the remaining stirring discs 17 are formed.
- FIG. 3 differs from that of FIG. 2 in essential only in that the return line 24 'through the cover 10 'opens into the grinding chamber 13, the opening 25' immediately is adjacent to the agitator shaft 15.
- the feed line 20 opens radially further out into the grinding chamber 13. Otherwise, all reference numerals in Fig. 3 the same meaning as in Fig. 2, so that on the above Description can be referenced.
- the grinding aid return line opens 24 '' in a cover surrounding the agitator shaft 15 10 '' attached and penetrating it and towards the grinding chamber 13 open cup-shaped connecting piece 32 a.
- the junction 25 '' is located also directly adjacent to the agitator shaft 15, in an area of high local negative pressure. The following also applies here the description above.
- the regrind feed line opens 20 '' 'through the floor 12' '' into the grinding chamber 13 while the separator 22 '' 'is near the lid 10' '' and there into the Regrind discharge line 21 '' 'is connected.
- Separating device 22 ''' from at least two sieve cartridges, on both sides the agitator shaft 15 arranged and guided past this laterally are.
- the mouth 26 '' 'of the grinding aid return line 24' '' is located immediately adjacent to the separating device 22 '' '.
- the stirring disc 17c i.e. the one closest to the cover 10 '' ' Agitator disc, thicker than the other agitator discs 17.
- the regrind to be ground is by means of the Pump 20a through the grinding stock feed line 20, 20 '' 'into the grinding chamber 13 introduced and then together with the grinding aids through this transported, with the high-speed rotation of the agitator 14 in a known way of dispersing and crushing the in flowable Suspension grinding material is carried out.
- the separating device 22 or 22 '' 'the regrind is removed.
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
Abstract
Description
- Fig. 1
- eine erste Ausführungsform einer Rührwerksmühle in Draufsicht gemäß dem Sichtpfeil I in Fig. 2,
- Fig. 2
- eine Teildarstellung der Rührwerksmühle im Vertikalschnitt entsprechend der Schnittlinie II-II in Fig. 1,
- Fig. 3
- eine zweite Ausführungsform einer Rührwerksmühle in einer Darstellung entsprechend Fig. 2,
- Fig. 4
- eine dritte Ausführungsform einer Rührwerksmühle in einer Darstellung entsprechend den Fig. 2 und 3 und
- Fig. 5
- eine vierte Ausführungsform einer Rührwerksmühle in einer Darstellung entsprechend den Fig. 2 bis 4.
Claims (9)
- Rührwerksmühlemit einem mit einer zylindrischen Wand (27) und einem Deckel (10, 10', 10'', 10''') und einem Boden (12, 12''') einen mit Mahlhilfskörpern (23) füllbaren Mahlraum (13) begrenzenden Mahlbehälter (9),mit einem in dem Mahlbehälter (9) angeordneten Rührwerk (14), das eine Rührwerkswelle (15) und an dieser angebrachte Rührwerkzeuge (16) aufweist,mit einem Antriebsmotor (2) zum Dreh-Antrieb des Rührwerks (14) um eine Achse (19),mit einer zumindest benachbart zum Deckel (10, 10', 10'') oder zum Boden (12''') angeordneten, in den Mahlraum (13) einmündenden Mahlgut-Zuführleitung (20, 20'''),mit einer zumindest benachbart zum Boden (12) oder zum Deckel (10''') angeordneten, in eine Mahlgut-Abführleitung (21, 21''') einmündenden Mahlgut-Mahlhilfskörper-Trennvorrichtung (22, 22''') undmit einer Mahlhilfskörper-Rückführleitung (24, 24', 24'', 24'''), dievon der Mahlgut-Zuführleitung (20, 20''') gesondert ist,eine Ausmündung (26, 26''') aus dem Mahlraum (13) im Bereich der zylindrischen Wand (27) und benachbart zur Trennvorrichtung (22, 22''') undeine Einmündung (25, 25', 25'', 25''') in den Mahlraum (13) radial zur Achse (19) in der Nähe der Rührwerkswelle (15) und in Richtung der Achse (19) benachbart zur Einmündung der Mahlgut-Zuführleitung (20, 20''')
- Rührwerksmühle nach Anspruch 1, dadurch gekennzeichnet,daß die Einmündung (25) der Mahlhilfskörper-Rückführleitung (24) an einem einen Abschnitt der Mahlhilfskörper-Rückführleitung (24) bildenden Tauchrohr (30) ausgebildet ist, das zwischen in Richtung der Achse (19)
- Rührwerksmühle nach Anspruch 2, dadurch gekennzeichnet,daß das Tauchrohr (30) in der Weise verschiebbar ausgebildet ist, daß der Abstand der Einmündung (25) von der Rührwerkswelle (15) einstellbar ist.
- Rührwerksmühle nach Anspruch 1, dadurch gekennzeichnet,daß die Einmündung (25') der Mahlhilfskörper-Rückführleitung (24') im Deckel (10') ausgebildet ist.
- Rührwerksmühle nach Anspruch 1, dadurch gekennzeichnet,daß die Einmündung (25'') der Mahlhilfskörper-Rückführleitung (24'') außerhalb des Mahlraums (13) in einem mit dem Mahlraum (13) verbundenen, den Deckel (10'') durchsetzenden und die Rührwerkswelle (15) umgebenden Anschlußstutzen (32) angeordnet ist.
- Rührwerksmühle nach Anspruch 1, dadurch gekennzeichnet,daß die Einmündung (25''') der Mahlhilfskörper-Rückführleitung (24''') in den Mahlraum (13) im Boden (12''') und konzentrisch zur Achse (19) angeordnet ist.
- Rührwerksmühle nach Anspruch 1, dadurch gekennzeichnet,daß benachbart zur Ausmündung (26, 26''') der Mahlhilfskörper-Rückführleitung (24, 24', 24'', 24''') mindestens ein Rührwerkzeug (16) angeordnet ist.
- Rührwerksmühle nach Anspruch 1, dadurch gekennzeichnet,daß der Mahlbehälter (9) mit horizontaler Achse (19) ausgebildet ist.
- Rührwerksmühle nach Anspruch 1, dadurch gekennzeichnet,daß die Einmündung (25, 25', 25'', 25''') bezogen auf die Achse (19) radial näher an der Rührwerkswelle (15) angeordnet ist als die Einmündung der Mahlgut-Zuführleitung (20, 20''') in den Mahlraum (13).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19839210 | 1998-08-28 | ||
DE19839210A DE19839210B4 (de) | 1998-08-28 | 1998-08-28 | Rührwerksmühle |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0982074A1 true EP0982074A1 (de) | 2000-03-01 |
EP0982074B1 EP0982074B1 (de) | 2004-05-26 |
Family
ID=7879044
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99114311A Expired - Lifetime EP0982074B1 (de) | 1998-08-28 | 1999-07-21 | Rührwerksmühle |
Country Status (4)
Country | Link |
---|---|
US (1) | US6260779B1 (de) |
EP (1) | EP0982074B1 (de) |
DE (2) | DE19839210B4 (de) |
ES (1) | ES2221272T3 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012069042A3 (de) * | 2010-11-26 | 2012-12-27 | Netzsch-Feinmahltechnik Gmbh | Hydraulische mahlkugelzu- und abfuhr für rührwerkskugelmühlen |
CN112584932A (zh) * | 2018-05-11 | 2021-03-30 | 美卓巴西工贸有限公司 | 立磨机中的研磨体进给系统 |
CN117258929A (zh) * | 2023-11-21 | 2023-12-22 | 威顿水泥集团有限责任公司 | 一种水泥生产用的进料装置 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112121984B (zh) * | 2020-09-09 | 2021-10-29 | 东莞市康搏智能装备有限公司 | 一种双杆型砂磨机用具有清理机构的研磨装置 |
DE102021101527B4 (de) | 2021-01-25 | 2023-05-17 | Wilhelm Niemann Gmbh & Co. | Rührwerksmühle |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2037258A1 (de) | 1970-07-28 | 1972-02-03 | Draiswerke GmbH, 6800 Mannheim Wald hof | Siebanordnung an Ruhrwerksmuhlen |
EP0058886A2 (de) | 1981-02-19 | 1982-09-01 | Draiswerke GmbH | Rührwerksmühle |
US4739936A (en) | 1984-11-16 | 1988-04-26 | Draiswerke Gmbh | Closed agitator mill with screen cartridges |
US5544825A (en) * | 1994-09-09 | 1996-08-13 | Evv-Vermogensverwaltungs-Gmbh | Agitator mill |
DE19630186A1 (de) | 1996-07-26 | 1998-01-29 | Draiswerke Gmbh | Rührwerksmühle |
DE19713765A1 (de) * | 1997-04-03 | 1998-10-08 | Bayer Ag | Rührwerkkugelmühle mit umlaufenden Mahlkörpern |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4432200C1 (de) * | 1994-09-09 | 1996-02-29 | Evv Vermoegensverwaltungs Gmbh | Rührwerksmühle |
-
1998
- 1998-08-28 DE DE19839210A patent/DE19839210B4/de not_active Expired - Fee Related
-
1999
- 1999-07-21 DE DE59909568T patent/DE59909568D1/de not_active Expired - Lifetime
- 1999-07-21 EP EP99114311A patent/EP0982074B1/de not_active Expired - Lifetime
- 1999-07-21 ES ES99114311T patent/ES2221272T3/es not_active Expired - Lifetime
- 1999-08-26 US US09/383,419 patent/US6260779B1/en not_active Expired - Lifetime
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2037258A1 (de) | 1970-07-28 | 1972-02-03 | Draiswerke GmbH, 6800 Mannheim Wald hof | Siebanordnung an Ruhrwerksmuhlen |
US3780957A (en) | 1970-07-28 | 1973-12-25 | Draiswerke Gmbh | Screen arrangement for stirring mills |
EP0058886A2 (de) | 1981-02-19 | 1982-09-01 | Draiswerke GmbH | Rührwerksmühle |
US4496106A (en) | 1981-02-19 | 1985-01-29 | Draiswerke Gmbh | Agitator-grinder |
US4739936A (en) | 1984-11-16 | 1988-04-26 | Draiswerke Gmbh | Closed agitator mill with screen cartridges |
DE3536857C2 (de) | 1984-11-16 | 1994-06-09 | Draiswerke Gmbh | Geschlossene Rührwerksmühle mit Siebpatronen |
US5544825A (en) * | 1994-09-09 | 1996-08-13 | Evv-Vermogensverwaltungs-Gmbh | Agitator mill |
DE19630186A1 (de) | 1996-07-26 | 1998-01-29 | Draiswerke Gmbh | Rührwerksmühle |
US5758833A (en) | 1996-07-26 | 1998-06-02 | Draiswerke Gmbh | Agitator mill |
DE19713765A1 (de) * | 1997-04-03 | 1998-10-08 | Bayer Ag | Rührwerkkugelmühle mit umlaufenden Mahlkörpern |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012069042A3 (de) * | 2010-11-26 | 2012-12-27 | Netzsch-Feinmahltechnik Gmbh | Hydraulische mahlkugelzu- und abfuhr für rührwerkskugelmühlen |
CN103249489A (zh) * | 2010-11-26 | 2013-08-14 | 耐驰粉磨技术有限责任公司 | 用于搅拌式球磨机的液压式磨球输入和输出方法 |
CN103249489B (zh) * | 2010-11-26 | 2014-10-15 | Netzsch精细研磨技术有限公司 | 用于搅拌式球磨机的液压式磨球输入和输出方法 |
US9216418B2 (en) | 2010-11-26 | 2015-12-22 | Netzsch-Feinmahltechnik Gmbh | Hydraulic milling ball feed and discharge for stirred ball mills |
CN112584932A (zh) * | 2018-05-11 | 2021-03-30 | 美卓巴西工贸有限公司 | 立磨机中的研磨体进给系统 |
CN112584932B (zh) * | 2018-05-11 | 2022-06-10 | 美卓巴西工贸有限公司 | 立磨机中的研磨体进给系统 |
US11845085B2 (en) | 2018-05-11 | 2023-12-19 | Metso Brasil Indústria E Comércio Ltda. | Feed system for grinding bodies in vertical mills |
CN117258929A (zh) * | 2023-11-21 | 2023-12-22 | 威顿水泥集团有限责任公司 | 一种水泥生产用的进料装置 |
CN117258929B (zh) * | 2023-11-21 | 2024-01-30 | 威顿水泥集团有限责任公司 | 一种水泥生产用的进料装置 |
Also Published As
Publication number | Publication date |
---|---|
DE19839210B4 (de) | 2007-09-06 |
DE59909568D1 (de) | 2004-07-01 |
US6260779B1 (en) | 2001-07-17 |
EP0982074B1 (de) | 2004-05-26 |
DE19839210A1 (de) | 2000-03-02 |
ES2221272T3 (es) | 2004-12-16 |
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