WO2010015564A1 - Rollenmühle und verfahren zur zerkleinerung von mahlgut - Google Patents
Rollenmühle und verfahren zur zerkleinerung von mahlgut Download PDFInfo
- Publication number
- WO2010015564A1 WO2010015564A1 PCT/EP2009/059883 EP2009059883W WO2010015564A1 WO 2010015564 A1 WO2010015564 A1 WO 2010015564A1 EP 2009059883 W EP2009059883 W EP 2009059883W WO 2010015564 A1 WO2010015564 A1 WO 2010015564A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- roller mill
- control device
- drives
- drive
- power
- 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.)
- Ceased
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
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C25/00—Control arrangements specially adapted for crushing or disintegrating
Definitions
- the invention relates to a roller mill and to a method for comminuting material to be ground, the roller mill having a grinding table, at least one grinding roller and at least two drives for driving the roller mill.
- the grinding table is usually driven in roller mills, which drives the grinding rollers on the grinding bed.
- roller mills which drives the grinding rollers on the grinding bed.
- each grinding roller is associated with a drive motor. Furthermore, the grinding table has an auxiliary drive.
- the grinding table is driven by an arrangement of more than two drives.
- electric motors are provided, which are fed by frequency converters and controlled by means of which speed and torque.
- Frequency inverters are organized according to the master-slave principle to ensure that all drives operate synchronously. These frequency converters, however, result in high costs for the drive train.
- the invention is therefore based on the object to reduce the cost of the control devices.
- the inventive roller mill has a grinding table, at least one grinding roller and at least two motors (drives) with stator and
- Rotor winding for driving the roller mill is equipped with at least one control device for controlling the motor torque of at least one drive.
- the control device is connected to the rotor winding of at least one drive for influencing the rotor current.
- the control device to the rotor winding at least one drive connected to perform a compensation control by controlling the engine torque.
- the regulation takes place by influencing the current of the rotor winding of at least one drive in order to regulate the power of the drives in a predetermined relationship to one another.
- the influencing of the motor torque is effected by directly influencing the rotor current, wherein an indirect influence of the stator current is caused.
- the influencing of the rotor current can be done, for example, by converters whose performance depends on this type of influence on the speed deviation between the operating and the nominal point, which is generally ⁇ 30% of
- the system can be designed so that the grinding operation in case of failure of a drive must not be interrupted (redundancy).
- the drives are preferably by asynchronous motors and the at least one motor to be influenced is formed in particular by a slip ring motor.
- the performance of the control device may be less than 50%, preferably not more than 30% of the rated power of the associated drive.
- Control devices are for example a frequency converter, a power converter cascade or a matrix converter used. It is conceivable that the control device is arranged stationary or co-rotates with the rotor of the drive.
- a low-voltage system can be provided whose voltage is for example a maximum of 690 V.
- the at least two drives can optionally either the grinding rollers and / or the
- Fig. 1 is a schematic representation of a roller mill with a
- FIG. 2 is a schematic representation of a designed as a frequency converter with voltage intermediate control device
- FIG. 3 shows a schematic representation of a control device designed as a power converter cascade
- Fig. 4 is a schematic representation of a trained as a matrix converter control device
- Fig. 5 is a schematic representation of a co-rotating with the rotor control device.
- the roller mill 1 shown in Fig.l has a grinding table 10, at least two grinding rollers 11, 12 and at least two drives 13, 14 for driving the two grinding rollers 11, 12.
- Each drive includes a motor and optionally a gearbox.
- a plurality of grinding rollers in particular three, four or more grinding rollers can be provided.
- the grinding table 10 is freely rotatable about an axis of rotation 10a, so that it is set in rotation only via the driven grinding rollers 11, 12 and the grinding material 3 located between the grinding roller and the grinding table. It would also be conceivable that the grinding table is assigned its own drive which consists of at least one motor.
- Mahlgutbett changes the ratio of Mahlrolle to Mahlteller continuously.
- the gear ratio is ultimately determined by the distance of the
- the distance ri of the force application point of the grinding roller 11 to the rotation axis 10a is smaller than the distance r 2 of the force application point of the grinding roller 12 to the rotation axis 10a.
- a compensation control device 2 wherein by controlling the engine torque (and thus optionally also the rotor speed) of at least one drive, the power of the drives 13, 14 are regulated in a predetermined ratio to each other.
- Embodiment are provided for the two identically designed grinding rollers 11, 12 the same drives 13, 14, so that the compensation control device 2 keeps the performance of the two drives at the same level.
- the compensation control device 2 consists in the illustrated embodiment essentially of one of the drives 13, 14 associated control device 20, 21, which is designed as a converter, a power compensation regulator 22 and possibly a Mahltellercardiereregler 23rd
- the drives 13, 14 are preferably formed by asynchronous motors, in particular slip ring motors whose stator winding 13a, 14a are connected to a network 15 (three-phase system, low or medium voltage) and its rotor winding 13b, 14b to the control device 20 and 21 respectively.
- asynchronous motors in particular slip ring motors whose stator winding 13a, 14a are connected to a network 15 (three-phase system, low or medium voltage) and its rotor winding 13b, 14b to the control device 20 and 21 respectively.
- 21 are preferably low-voltage systems with a maximum Voltage of 690 V. They are therefore possibly connected via a transformer 16 to the network 15.
- the control devices 20, 21 measure from the drives 13, 14 the instantaneous motor current and the motor voltage. From this, the power consumption of each
- Resistance torque this value depends essentially only on the speed of the respective drive.
- a deviation between the actual drive power and the nominal drive power is applied to the power balancing controller 22, which effects a power adjustment of the two drives 13, 14 by adapting the rotor current of the respective drive accordingly, so that the power of the two drives in the predetermined ratio, in case at the same level.
- an additional control for the Mahltellerprintiere is provided, which is realized here by the Mahltellerthermiereregler 23.
- Mahltellerthregler 23 is connected to a not shown
- Mahltellerrectieresensor in conjunction and receives at sufficiently small intervals the actual value of the speed of the grinding table 10, which is compared with the setpoint ns o ii, resulting in the control deviation. From this, the controller generates the target speed for the power balancing device 22 at a firmly assumed gear ratio, which can change this value.
- the control device 20, 21 may also have an internal speed controller and a revolving engine model, whereby the drive speed of the drives and the engine torque can be tapped.
- the controllers must be able to control and status data every 5-10 ms read or output, so that the function of the compensation control device is ensured.
- the system is a cascade control, the individual levels are dynamically decoupled from each other and thus can be considered individually.
- the advantage of the regulation described above is that with a power compensation control, the power consumption of the drives 13, 14 differ only slightly from each other and even large changes in the system (translation jump) are corrected very quickly.
- control devices 20, 21 are expediently formed by converters, wherein it is not necessary that the entire power of the drives 13, 14 can be regulated by the control device 20, 21, as was the case in the prior art
- the rotor current can be influenced for regulation.
- This type of influencing the drives offers the possibility that the performance of the control devices can be chosen to be much smaller than the rated power of the associated drives.
- the power is the
- Control devices less than 50%, preferably at most 30% of the rated power of the associated drives. Since the costs of the control devices designed as converters depend proportionally on the power of the control devices, 50 or 70% and more of the costs for the control devices can be saved in this way. Reference to the figures 2 to 5 different exemplary embodiments for the control device 20 and 21 are shown below.
- control device 20 or 21 is designed as a frequency converter 20.1 with a voltage intermediate circuit. He exists in
- the input stage 20a converts the frequency-fixed three-phase current into
- the intermediate circuit 20c has a capacitor and is used for decoupling the input and output stage (energy storage).
- control device is a speed reduction (recovery of energy into the grid) but also an increase in speed (additional power) possible.
- the magnetization of the motor can be influenced in a targeted manner (can also be represented as a capacitive load relative to the network).
- a start-up module 2Od can be provided, but this is only necessary if the drive 13, 14 has to start under rated load (or above). Then, during startup instead of the control device, the start-up module 20d is connected to the rotor winding. If, on the other hand, the roller mill is started without load (possibly at partial load ⁇ 50% of rated load), this start-up module is not required.
- the control device 20, 21 is designed as Stromumrichterkaskade 20.2. It is a sub-synchronous converter cascade. Through targeted influence of current, the engine slip and thus the speed, or the engine torque of the drive can be specifically influenced. This is the
- the power converter cascade can feed energy back into the network via a thyristor stage 20g.
- the advantage of the power converter cascade is that operation in the vicinity of the synchronous speed for the components is not a problem. Furthermore, it comes with fewer components than the frequency converter 20.1, in particular, can be dispensed with the DC link capacitor, thereby increasing the life.
- the control device 20, 21 of the embodiment shown in Fig. 4 is formed by a matrix converter 20.3.
- the frequency-fixed input phases are time-correctly interconnected so that frequency-variable output voltages can be provided.
- the energy flow in both directions is possible.
- the advantage of a matrix converter is that no memory modules (capacitance or inductance) are necessary. Again, an operation in the vicinity of the synchronous speed for the components by their operation is not a problem. In addition, the energy flow is possible without additional components in both directions. This controller should therefore have a better efficiency over the other embodiments.
- Fig. 5 finally shows a schematic representation of a co-rotating with the rotor winding 13a, 14a controller 20, 21. This opens the
- the required power of the control device will therefore generally amount to a maximum of 30% of the rated motor power of the drive.
- Motor powers are to be regulated.
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
- Control Of Multiple Motors (AREA)
- Disintegrating Or Milling (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Description
Claims
Priority Applications (10)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK09736554.8T DK2170517T4 (en) | 2008-08-07 | 2009-07-30 | Roller mill and process for the decomposition of the grinding material |
| AT09736554T ATE494068T1 (de) | 2008-08-07 | 2009-07-30 | Rollenmühle und verfahren zur zerkleinerung von mahlgut |
| JP2011521540A JP5438764B2 (ja) | 2008-08-07 | 2009-07-30 | ローラーミルおよび被粉砕材料の粉砕方法 |
| CN200980131119XA CN102112232B (zh) | 2008-08-07 | 2009-07-30 | 研细磨料的辊磨机及方法 |
| RU2011108266/13A RU2497593C2 (ru) | 2008-08-07 | 2009-07-30 | Валковая мельница и способ измельчения измельчаемого сырьевого материала |
| BRPI0915954-1A BRPI0915954A2 (pt) | 2008-08-07 | 2009-07-30 | fresa laminadora e método para pulverizar um material de esmerilhamento |
| MX2011001213A MX2011001213A (es) | 2008-08-07 | 2009-07-30 | Molino de rodillos y metodo para triturar reservas de molienda. |
| EP09736554.8A EP2170517B2 (de) | 2008-08-07 | 2009-07-30 | Rollenmühle und verfahren zur zerkleinerung von mahlgut |
| US13/055,183 US8692495B2 (en) | 2008-08-07 | 2009-07-30 | Roller mill and method for size reduction of ground material |
| DE502009000272T DE502009000272D1 (de) | 2008-08-07 | 2009-07-30 | Rollenmühle und verfahren zur zerkleinerung von mahlgut |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008036784.2 | 2008-08-07 | ||
| DE102008036784A DE102008036784C5 (de) | 2008-08-07 | 2008-08-07 | Rollenmühle und Verfahren zur Zerkleinerung von Mahlgut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2010015564A1 true WO2010015564A1 (de) | 2010-02-11 |
Family
ID=41119427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2009/059883 Ceased WO2010015564A1 (de) | 2008-08-07 | 2009-07-30 | Rollenmühle und verfahren zur zerkleinerung von mahlgut |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US8692495B2 (de) |
| EP (1) | EP2170517B2 (de) |
| JP (1) | JP5438764B2 (de) |
| CN (1) | CN102112232B (de) |
| AT (1) | ATE494068T1 (de) |
| BR (1) | BRPI0915954A2 (de) |
| DE (2) | DE102008036784C5 (de) |
| DK (1) | DK2170517T4 (de) |
| MX (1) | MX2011001213A (de) |
| RU (1) | RU2497593C2 (de) |
| WO (1) | WO2010015564A1 (de) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014111176A1 (de) * | 2013-01-16 | 2014-07-24 | Siemens Aktiengesellschaft | Verfahren zur antriebsregelung sowie nach dem verfahren arbeitendes antriebssystem |
| CN106179614A (zh) * | 2014-08-08 | 2016-12-07 | 伦克股份有限公司 | 竖直式辊磨机的驱动组件和用于运行其的方法 |
| CN110976890A (zh) * | 2019-12-31 | 2020-04-10 | 金堆城钼业股份有限公司 | 一种双辊电动碾压破碎机 |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009012353C5 (de) | 2009-03-09 | 2013-08-22 | ThyssenKrupp Resource Technologies AG | Rollenmühle |
| EP2641322B1 (de) * | 2011-02-08 | 2016-04-13 | Siemens Aktiengesellschaft | Energieversorgungssystem mit einem multiphasenmatrixumrichter und verfahren zum betrieb desselben |
| FR2977170B1 (fr) * | 2011-06-29 | 2013-08-09 | Cie Engrenages Et Reducteurs Messian Durand | Dispositif d'entrainement pour broyeur, et broyeur correspondant |
| DE102012106554A1 (de) * | 2012-07-19 | 2014-05-15 | Thyssenkrupp Resource Technologies Gmbh | Verfahren und Anlage zur Zerkleinerung von Mahlgut mit einer Rollenmühle |
| DE102012107043B4 (de) * | 2012-08-01 | 2017-08-17 | Thyssenkrupp Industrial Solutions Ag | Rollenmühle und Verfahren zum Zerkleinern von Mahlgut mit einer Rollenmühle |
| CN103191827B (zh) * | 2013-04-17 | 2016-04-20 | 北京便宜坊烤鸭集团有限公司 | 一种江米面生产设备及江米面生产方法 |
| CN103394386B (zh) * | 2013-08-13 | 2016-05-11 | 河南工业大学 | 一种胶辊砻谷机的双变频电机驱动装置 |
| EP3159068B1 (de) * | 2015-10-20 | 2018-02-14 | Leifeld Metal Spinning AG | Umformmaschine zum drücken/drückwalzen und verfahren zum drücken/drückwalzen |
| US10758912B1 (en) * | 2019-04-11 | 2020-09-01 | Gene P. Guthmiller | Material processing system |
| AU2021466145B2 (en) * | 2021-09-30 | 2026-03-26 | Paul Scherrer Institut | [161Tb]-BASED RADIOPEPTIDES |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE4325187A1 (de) * | 1992-07-28 | 1994-02-03 | Kobe Steel Ltd | Verfahren zur Steuerung einer Walzenmühle sowie eine Steuerung zur Ausführung des Verfahrens |
| DE19702854A1 (de) * | 1997-01-27 | 1998-07-30 | Krupp Polysius Ag | Verfahren und Rollenmühle zur Zerkleinerung von Mahlgut |
| WO2008095902A1 (de) * | 2007-02-07 | 2008-08-14 | Polysius Ag | Verfahren zur zerkleinerung von mahlgut mit einer rollenmühle |
| WO2009030609A1 (de) * | 2007-09-04 | 2009-03-12 | Polysius Ag | Verfahren und rollenmühle zur zerkleinerung von mahlgut |
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-
2008
- 2008-08-07 DE DE102008036784A patent/DE102008036784C5/de not_active Expired - Fee Related
-
2009
- 2009-07-30 EP EP09736554.8A patent/EP2170517B2/de not_active Not-in-force
- 2009-07-30 DK DK09736554.8T patent/DK2170517T4/en active
- 2009-07-30 WO PCT/EP2009/059883 patent/WO2010015564A1/de not_active Ceased
- 2009-07-30 AT AT09736554T patent/ATE494068T1/de active
- 2009-07-30 JP JP2011521540A patent/JP5438764B2/ja not_active Expired - Fee Related
- 2009-07-30 US US13/055,183 patent/US8692495B2/en not_active Expired - Fee Related
- 2009-07-30 RU RU2011108266/13A patent/RU2497593C2/ru not_active IP Right Cessation
- 2009-07-30 MX MX2011001213A patent/MX2011001213A/es active IP Right Grant
- 2009-07-30 BR BRPI0915954-1A patent/BRPI0915954A2/pt not_active Application Discontinuation
- 2009-07-30 CN CN200980131119XA patent/CN102112232B/zh not_active Expired - Fee Related
- 2009-07-30 DE DE502009000272T patent/DE502009000272D1/de active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4325187A1 (de) * | 1992-07-28 | 1994-02-03 | Kobe Steel Ltd | Verfahren zur Steuerung einer Walzenmühle sowie eine Steuerung zur Ausführung des Verfahrens |
| DE19702854A1 (de) * | 1997-01-27 | 1998-07-30 | Krupp Polysius Ag | Verfahren und Rollenmühle zur Zerkleinerung von Mahlgut |
| WO2008095902A1 (de) * | 2007-02-07 | 2008-08-14 | Polysius Ag | Verfahren zur zerkleinerung von mahlgut mit einer rollenmühle |
| WO2009030609A1 (de) * | 2007-09-04 | 2009-03-12 | Polysius Ag | Verfahren und rollenmühle zur zerkleinerung von mahlgut |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014111176A1 (de) * | 2013-01-16 | 2014-07-24 | Siemens Aktiengesellschaft | Verfahren zur antriebsregelung sowie nach dem verfahren arbeitendes antriebssystem |
| WO2014111174A1 (de) * | 2013-01-16 | 2014-07-24 | Siemens Aktiengesellschaft | Verfahren und vorrichtung zur regelung einer rotationsgeschwindigkeit eines antriebs |
| CN104936702A (zh) * | 2013-01-16 | 2015-09-23 | 西门子公司 | 用于调节驱动装置的旋转速度的方法和装置 |
| CN104936702B (zh) * | 2013-01-16 | 2017-06-09 | 西门子公司 | 用于调节驱动装置的旋转速度的方法和装置 |
| US9789489B2 (en) | 2013-01-16 | 2017-10-17 | Siemens Aktiengesellschaft | Method and device for controlling a rotational speed of a drive |
| US10118181B2 (en) | 2013-01-16 | 2018-11-06 | Siemens Aktiengesellschaft | Drive control method and drive system operating according to said method |
| CN106179614A (zh) * | 2014-08-08 | 2016-12-07 | 伦克股份有限公司 | 竖直式辊磨机的驱动组件和用于运行其的方法 |
| DE102014011846B4 (de) | 2014-08-08 | 2024-10-10 | Renk Gmbh | Antriebsanordnung einer Vertikal-Rollenmühle und Verfahren zum Betreiben derselben |
| CN110976890A (zh) * | 2019-12-31 | 2020-04-10 | 金堆城钼业股份有限公司 | 一种双辊电动碾压破碎机 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2170517B2 (de) | 2016-07-20 |
| RU2497593C2 (ru) | 2013-11-10 |
| US8692495B2 (en) | 2014-04-08 |
| DK2170517T4 (en) | 2016-11-07 |
| DE102008036784A1 (de) | 2010-02-18 |
| DE502009000272D1 (de) | 2011-02-17 |
| CN102112232A (zh) | 2011-06-29 |
| DK2170517T3 (da) | 2011-05-02 |
| CN102112232B (zh) | 2013-07-17 |
| DE102008036784C5 (de) | 2013-06-20 |
| MX2011001213A (es) | 2011-03-04 |
| RU2011108266A (ru) | 2012-09-20 |
| BRPI0915954A2 (pt) | 2020-08-18 |
| DE102008036784B4 (de) | 2011-05-05 |
| JP5438764B2 (ja) | 2014-03-12 |
| JP2011529787A (ja) | 2011-12-15 |
| EP2170517A1 (de) | 2010-04-07 |
| US20110121772A1 (en) | 2011-05-26 |
| ATE494068T1 (de) | 2011-01-15 |
| EP2170517B1 (de) | 2011-01-05 |
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