WO2015086486A1 - Roller mill and arrangement for driving a roller mill - Google Patents
Roller mill and arrangement for driving a roller mill Download PDFInfo
- Publication number
- WO2015086486A1 WO2015086486A1 PCT/EP2014/076815 EP2014076815W WO2015086486A1 WO 2015086486 A1 WO2015086486 A1 WO 2015086486A1 EP 2014076815 W EP2014076815 W EP 2014076815W WO 2015086486 A1 WO2015086486 A1 WO 2015086486A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- roller
- displaceable
- rotor
- electric motor
- shaft
- Prior art date
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
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/02—Crushing or disintegrating by roller mills with two or more rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
- B02C4/42—Driving mechanisms; Roller speed control
Definitions
- the present invention relates to the field of roll mills. It relates to a roller mill with two ge ⁇ gen actually rotating rollers which are rotatably mounted in a frame, and an arrangement for driving such a roller mill.
- Roll mills are used for grinding materials, in particular ores and cement. Roll mills typically have a roll diameter of 0.8 to 3 meters and a drive power of 0.2 to 5 megawatts. They are particularly energy efficient compared to other mill types. Such a roller mill is described for example in DE 4028015 AI.
- a Wal ⁇ zenmühle two counter-rotating rolls 1,1 ' which rolls 1,1' are rotatably mounted in a frame horizontally and parallel to each other.
- One of the two rollers 1 is usually fixed in the radial direction and another of the two rollers 1 'is pressed by a spring system on the fixed roller 1.
- Each roller 1,1 ' has a grinding surface.
- the opposite grinding surfaces of the rollers 1,1 ' form a wedge. Material is filled from above between the rollers 1,1 'in the wedge, guided by the rotation of the rollers 1,1' down and crushed by the wedge.
- the rotation of the rollers 1,1 ' via egg ⁇ nen drive.
- an electric motor via movable mechanical elements with one of the rolls or indirectly connected to both rolls.
- Fig. 2 shows a roller mill with two drives.
- a drive is assigned to one of the rollers 1,1 'and includes an electric motor 2, a propeller shaft 3 and a planetary gear 4.
- di rectly ⁇ connects the Gelenkswel- le to the shaft of the sliding roller and the planetary gear between the Ge ⁇ steering shaft and the electric motor is arranged.
- the electric motor and the planetary gear are stationary.
- the transmission distributes the torque to both rollers.
- the electric motor delivers the desired speed for the rollers without a speed adjustment of a transmission.
- the drive does not comprise a gearbox and the electric motor is connected directly to the roller via the cardan shaft.
- Fig. 3 shows two rollers, each with a drive.
- a Ver ⁇ displacement of the displaceable roll 1 ' means that the shaft of the fixed electric motor 2 and the shaft of the displaceable roll 1' are no longer aligned.
- the radial displacement between the shafts is compensated by movements in joints 31 of the propeller shaft 3. Since the displaceable shaft 1 'is displaced substantially orthogonal to the axial direction, the distance between the joints 31 of the articulated shaft 3 increases.
- the necessary length adaptation of the propeller shaft 3 is realized by a telescopic mechanism 32.
- Fig. 4 shows a universal shaft with a Teleskopmechanis ⁇ mechanism.
- the joint shaft a in the axial direction of the propeller shaft 3
- the propeller shaft 3 has a variable length and can transmit a torque.
- the problem with this solution is that a propeller shaft with Teleskopmecha ⁇ mechanism is very expensive and maintenance-intensive.
- the sliding surfaces of the toothing must always be lubricated. Due to the very dirty and dusty working environment, wel ⁇ ches work environment is caused by the grinding process, a very frequent maintenance, such as in a weekly rhythm, necessary.
- Fig. 5 shows a slidable roll 1 'with a conge ⁇ impaired drive.
- the displaceable roller 1 ' has a radial bearing 11 and an axial bearing 12.
- one of the radial bearings can be combined with the axial bearing in a combined axial-radial bearing.
- An electric motor 2 has a rotor 21 and a stator 22. The rotor is supported by a radial bearing 23 and an axial bearing 24.
- a Ge ⁇ lenkswelle 3 connects the displaceable shaft 1 'with the rotor 21 of the electric motor 2.
- the necessary length adjustment of the propeller shaft 3 with a displacement of 29iebba ⁇ ren shaft 1' is realized by a telescopic mechanism 32.
- the object of the present invention is to provide a roller mill and an arrangement for driving a roller mill, which are less maintenance-intensive and less error-prone. This object is achieved by a roll mill and a Anord ⁇ voltage for driving a rolling mill with the features of the independent claims. Preferred exporting ⁇ insurance forms are the subject of the dependent patent claims.
- a movable roller of a rolling mill is connected via a drive shaft with non-modifiable length ⁇ with an electric motor.
- the displaceable roller is mounted in the axial and radial directions.
- the electric motor has a rotor which can be displaced in the axial direction. Due to this floating mounting of the rotor of the electric motor, it is possible that Variegated ⁇ tion of the distance between the stationary stator of the electric motor and the movable shaft due to shifts of the movable shaft orthogonal to the axial direction of the sliding shaft without the use of a telescopic mechanism and using a Ge ⁇ steering shaft offset constant length. This allowed ⁇ light a simpler design with lower maintenance requirements and a lower error rate.
- Figure 1 is a schematic representation of the milling process of a roll mill according to the prior art
- Figure 2 is a perspective views of a roll mill with two drives according to the prior art
- Figure 3 shows two rollers, each with a drive according to the
- Figure 4 shows a propeller shaft with telescopic mechanism according to the prior art in a plan view
- Figure 5 is a schematic representation of an axial section of a slidable ⁇ roll with a
- FIG. 6 is a schematic representation of an axial
- Section of a displaceable roller with a drive according to the invention Section of a displaceable roller with a drive according to the invention.
- the displaceable roller 1 has a radial bearing 11 and an axial bearing 12.
- An electric motor 2 has a rotor 21 and a stator 22.
- the rotor 21 is guided over a radial bearing 23 so that the rotor 21 is displaceable in the axial direction.
- a fixed shaft joint shaft during operation of the roller mill connects the displaceable shaft to the electric motor 2.
- the axial bearing of the at ⁇ drive instead of the movable roller at the Gelenkwel ⁇ le or is arranged the rotor.
- the drive has a gear, such as a planetary gear, wherein the transmission is arranged between the propeller shaft and the displaceable roller.
- the gear is supported such that there is relative between the Ge ⁇ drives and the displaceable roll to no movement and the gearbox the same movements orthogonal learns to the axial direction of the displaceable roll as the displaceable roller itself.
- the hinge shaft has outside the operation of the roll mill an adjustable length, for example in the form of a telescopic mechanism with a Feststellschrau ⁇ be. LIST OF REFERENCE NUMBERS
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
- Friction Gearing (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA2932845A CA2932845A1 (en) | 2013-12-12 | 2014-12-08 | Roller mill and assembly for driving a roller mill |
EP14809005.3A EP3079825A1 (en) | 2013-12-12 | 2014-12-08 | Roller mill and arrangement for driving a roller mill |
AU2014363719A AU2014363719B2 (en) | 2013-12-12 | 2014-12-08 | Roller mill and assembly for driving a roller mill |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13197004.8 | 2013-12-12 | ||
EP13197004.8A EP2883612A1 (en) | 2013-12-12 | 2013-12-12 | Rolling mill and assembly for driving a rolling mill |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015086486A1 true WO2015086486A1 (en) | 2015-06-18 |
Family
ID=49753091
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2014/076815 WO2015086486A1 (en) | 2013-12-12 | 2014-12-08 | Roller mill and arrangement for driving a roller mill |
Country Status (6)
Country | Link |
---|---|
EP (2) | EP2883612A1 (en) |
AU (1) | AU2014363719B2 (en) |
CA (1) | CA2932845A1 (en) |
CL (1) | CL2016001356A1 (en) |
PE (1) | PE20161460A1 (en) |
WO (1) | WO2015086486A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019081328A1 (en) | 2017-10-25 | 2019-05-02 | Basf Se | Process for producing hydrophobically associating polyacrylamides |
WO2020079123A1 (en) | 2018-10-18 | 2020-04-23 | Basf Se | Method of fracturing subterranean formations using aqueous solutions comprising hydrophobically associating copolymers |
WO2021037578A1 (en) | 2019-08-26 | 2021-03-04 | Basf Se | Process for making nvp containing polyacrylamides |
WO2021037579A1 (en) | 2019-08-26 | 2021-03-04 | Basf Se | Process for making nvp containing polyacrylamides |
CN112808383A (en) * | 2021-01-04 | 2021-05-18 | 中冶长天国际工程有限责任公司 | Crusher and crushing roller adjusting device and crushing roller adjusting method thereof |
WO2022106308A1 (en) | 2020-11-23 | 2022-05-27 | Basf Se | Process for making water-soluble, nvp-containing copolymers in powder form |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2755484T3 (en) | 2017-05-09 | 2020-04-22 | Buehler Ag | Feed and feed roller mill with one gear |
CN109289980A (en) * | 2018-11-16 | 2019-02-01 | 南通亚威机械制造有限公司 | A kind of cement roller press |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3888138A (en) * | 1972-10-11 | 1975-06-10 | Mannesmann Meer Ag | Planetary drive system for rolls in a mill |
DD134921A1 (en) * | 1978-03-13 | 1979-04-04 | Bernd Pester | DRIVE FOR ROLLING MILLS |
DE4028015A1 (en) | 1990-09-04 | 1992-03-05 | Krupp Polysius Ag | Roller mill for grinding brittle material - has powder fed into gap between rollers to prevent clogging |
DE19822341A1 (en) * | 1998-05-19 | 1999-11-25 | Eickhoff Geb | Drive device for two rollers driven in counter rotation |
DE102011000749A1 (en) | 2011-02-15 | 2012-08-16 | Thyssenkrupp Polysius Ag | Roller mill for crushing brittle materials e.g. limestone, has spur gear and motor that are coupled with grinding rollers through drive shaft |
EP2545994A1 (en) * | 2011-07-15 | 2013-01-16 | ABB Technology AG | Arrangement for a roller mill |
-
2013
- 2013-12-12 EP EP13197004.8A patent/EP2883612A1/en not_active Withdrawn
-
2014
- 2014-12-08 CA CA2932845A patent/CA2932845A1/en not_active Abandoned
- 2014-12-08 PE PE2016000718A patent/PE20161460A1/en unknown
- 2014-12-08 EP EP14809005.3A patent/EP3079825A1/en not_active Withdrawn
- 2014-12-08 AU AU2014363719A patent/AU2014363719B2/en not_active Ceased
- 2014-12-08 WO PCT/EP2014/076815 patent/WO2015086486A1/en active Application Filing
-
2016
- 2016-06-03 CL CL2016001356A patent/CL2016001356A1/en unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3888138A (en) * | 1972-10-11 | 1975-06-10 | Mannesmann Meer Ag | Planetary drive system for rolls in a mill |
DD134921A1 (en) * | 1978-03-13 | 1979-04-04 | Bernd Pester | DRIVE FOR ROLLING MILLS |
DE4028015A1 (en) | 1990-09-04 | 1992-03-05 | Krupp Polysius Ag | Roller mill for grinding brittle material - has powder fed into gap between rollers to prevent clogging |
DE19822341A1 (en) * | 1998-05-19 | 1999-11-25 | Eickhoff Geb | Drive device for two rollers driven in counter rotation |
DE102011000749A1 (en) | 2011-02-15 | 2012-08-16 | Thyssenkrupp Polysius Ag | Roller mill for crushing brittle materials e.g. limestone, has spur gear and motor that are coupled with grinding rollers through drive shaft |
EP2545994A1 (en) * | 2011-07-15 | 2013-01-16 | ABB Technology AG | Arrangement for a roller mill |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019081328A1 (en) | 2017-10-25 | 2019-05-02 | Basf Se | Process for producing hydrophobically associating polyacrylamides |
WO2020079123A1 (en) | 2018-10-18 | 2020-04-23 | Basf Se | Method of fracturing subterranean formations using aqueous solutions comprising hydrophobically associating copolymers |
WO2021037578A1 (en) | 2019-08-26 | 2021-03-04 | Basf Se | Process for making nvp containing polyacrylamides |
WO2021037579A1 (en) | 2019-08-26 | 2021-03-04 | Basf Se | Process for making nvp containing polyacrylamides |
WO2022106308A1 (en) | 2020-11-23 | 2022-05-27 | Basf Se | Process for making water-soluble, nvp-containing copolymers in powder form |
CN112808383A (en) * | 2021-01-04 | 2021-05-18 | 中冶长天国际工程有限责任公司 | Crusher and crushing roller adjusting device and crushing roller adjusting method thereof |
Also Published As
Publication number | Publication date |
---|---|
AU2014363719B2 (en) | 2018-02-01 |
AU2014363719A1 (en) | 2016-07-21 |
EP3079825A1 (en) | 2016-10-19 |
EP2883612A1 (en) | 2015-06-17 |
CL2016001356A1 (en) | 2016-11-25 |
PE20161460A1 (en) | 2017-02-03 |
CA2932845A1 (en) | 2015-06-18 |
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