EP2874750A2 - Verfahren und anlage zur zerkleinerung von mahlgut mit einer rollenmühle - Google Patents
Verfahren und anlage zur zerkleinerung von mahlgut mit einer rollenmühleInfo
- Publication number
- EP2874750A2 EP2874750A2 EP13736838.7A EP13736838A EP2874750A2 EP 2874750 A2 EP2874750 A2 EP 2874750A2 EP 13736838 A EP13736838 A EP 13736838A EP 2874750 A2 EP2874750 A2 EP 2874750A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- grinding
- drives
- mass flow
- grinding rollers
- rollers
- 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
- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000001105 regulatory effect Effects 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 21
- 239000000654 additive Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 1
- 239000003245 coal Substances 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 1
- 239000012615 aggregate Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
- B02C25/00—Control arrangements specially adapted for crushing or disintegrating
-
- 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
- B02C15/007—Mills with rollers pressed against a rotary horizontal disc
-
- 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
- B02C15/02—Centrifugal pendulum-type mills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/02—Feeding devices
Definitions
- the invention relates to a method and a system for comminuting regrind with a roller mill, wherein a grinding table cooperates with at least two, driven by their own drive grinding rollers and crushed in the mass flow material is comminuted between the grinding table and grinding roller.
- Mahlrollen be compensated by a common load balancing control.
- the equalization control was formed by a power compensation scheme in DE 10 2007 006 092 AI, wherein by
- the power of the drives is controlled in a predetermined ratio to each other.
- a control of the grinding pressure is used to regulate the power of the drives in a predetermined ratio to each other.
- EP 0 180 814 A2 discloses a roller mill with a control system for operating the mill over a wide range of flow rates, ensuring a satisfactory air-to-solid ratio and a desired degree of fineness.
- the invention was based on the object to develop a new concept of power balancing.
- a grinding table cooperates with at least two grinding rollers, whereby the millbase supplied in the mass flow is comminuted between the grinding plate and the grinding roller.
- At least two grinding rollers are driven by their own drives, whereby a power compensation control for the drives of the grinding rollers is performed, so that the performance of the drives is controlled in a predetermined ratio to each other.
- the power control is carried out by changing the mass flow of at least one of the grinding rollers supplied grinding material.
- the inventive plant for the comminution of ground material with a roller mill has a grinding table and at least two cooperating with the grinding table grinding rollers, wherein the mass flow supplied grinding material is comminuted between the grinding plate and grinding roller, and wherein at least two grinding rollers have their own drive and a power compensation for the Drives of the grinding rollers for controlling the power of the drives in one predetermined ratio is provided to each other.
- the power balancing control cooperates with at least one actuator to change the Massenfius of at least one of the grinding rollers supplied grinding material.
- mass flow is understood to mean the mass flow or mass flow which is usually applied centrally to the grinding table via a feed device and then conveyed to the grinding rollers act directly on the grinding rollers, suggests the inventive concept for power balancing regulation to influence the mass flow.
- the power compensation control preferably uses the torque and / or the speed of the drives as a controlled variable.
- the change in the mass flow can be effected in particular by influencing the orientation of the mass flow with respect to the grinding roller and / or influencing the width of the mass flow and / or influencing the height of the mass flow and / or influencing the quantity supplied.
- it can be provided to precompress or loosen up the ground material supplied in the mass flow.
- the power compensation control device is expediently with torque sensors for detecting the torque of the drives of the grinding rollers and / or with speed sensors for detecting the rotational speed of the drives Grinding rollers in operative connection, then depending on the measurement result, at least one actuator to control the mass flow to control.
- actuators can be formed for example by guide elements, adjustable chutes, adjustable height limits and metering devices.
- the drives of the grinding rollers are in particular unregulated three-phase electrical asynchronous motors in question.
- the performance of the drives can basically be controlled so that the operating torques of the drives are between zero and the overturning moment of the drives. In this way, the drives of the grinding rollers can be adapted to the respective grinding requirements in a wide range.
- Fig. 1 is a schematic representation of a system according to the invention for
- FIG. 2 shows a plant according to FIG. 1, wherein the power compensation control device interacts with a pivotable chute
- FIG. 3 shows a system according to FIG. 1, wherein the power compensation control device cooperates with an adjustable baffle, FIG.
- Fig. 4 shows a system according to FIG. 1, wherein the power compensation control device cooperates with an adjustable height limiting element and
- FIG. 5 shows a plant according to FIG. 1, wherein the power balancing control device cooperates with a device for adding additives, FIG.
- the plant shown in Fig. 1 for the comminution of ground material with a roller mill has a grinding table 1 and at least two with the grinding table cooperating grinding rollers 2, 3, wherein the mass flow in a feed device 4 supplied grinding material 5 is comminuted between grinding plate and grinding roller.
- Each of the two grinding rollers 2, 3 has its own drive 6, 7, while the grinding table in the illustrated embodiment on the grinding rollers 2 and 3 and the material to be ground 5 is driven and thus no own drive is assigned. In the context of the invention, however, the grinding table can also be driven.
- a power compensation control device 8 is provided, which interacts with measuring members 9, 10 and at least one actuator 11.
- the measuring members 9, 10 are formed for example by torque sensors for detecting the torque Ml, M2 of the drives 6 and 7 and / or by speed sensors for detecting the rotational speed nl, n2 of the drives 6, 7. With the measured values, the power compensation control device 8 can determine the power of the two drives 6, 7.
- the aim is to divide the total power of all drives in a given ratio to the individual drives. It can be provided, for example, that all drives are operated with the same power. However, it is quite conceivable that the services evaluate differently divided, which may be the case for example with different sized grinding rollers.
- the power compensation control device regulates the power of the individual drives so that the powers are within a predetermined target range. If it is ascertained via the measured values (rotational speed, torque) that the power of one or the other drive is outside the setpoint range, a targeted influencing of the mass flow of the grinding material 5 fed to at least one of the grinding rollers 2, 3 is undertaken via the actuator 11.
- This may, for example, be such that the grinding roller, the drive of which has increased power, is supplied with less material to be ground than the grinding roller, whose drive consumes a power that is too low.
- the power of the two drives 6, 7 can be influenced in a targeted manner via the change in the mass flow in order to regulate the power of the two drives in the predetermined ratio of, for example, 50% in each case.
- the drives 6, 7 are equipped with expensive control devices, such as frequency converters.
- three-phase electrical asynchronous motors are used as drives 6, 7.
- the plant described above is particularly suitable for the comminution of regrind, such as limestone, binder and coal.
- regrind such as limestone, binder and coal.
- the roller mill can be designed, for example, as follows:
- Diameter of the grinding plate 1 2 m to 8 m
- Diameter of the grinding roller 2, 3 1 m to 4 m
- the actuator is formed by a provided at the lower end of the task device 4, pivotable chute I Ia, which is pivotable via an actuator I Ib.
- the power compensation control device 8 will accordingly control the actuator 1 lb as a function of the measured values determined by the measuring elements 9, 10 if the powers of the two drives 6, 7 are outside their predetermined control ranges.
- the actuator is formed by an adjustable guide plate 11c with associated actuator I Ib.
- this baffle 1 1c in particular the orientation of the mass flow with respect to the grinding roller and / or the width of the mass flow and / or the amount supplied.
- Fig. 4 shows the variant in which the mass flow is changed by influencing its height.
- the actuator is formed by a height-limiting element 1 le that can be adjusted via an actuator 1 lf in height by the power compensation control device 8.
- the mass flow is influenced by changing its composition.
- the actuator is formed by a metering device 11g with associated actuator 11h, 11g additives are added to the material to be ground via the metering device 11g, such as fresh, circulating or finished good, coal, aggregates, water or grinding aids. If this addition occurs specifically before a grinding roller, the power consumption of the associated drive can be influenced in a targeted manner.
- each grinding roller can be preceded by a so-called slave roller, which enables a pre-compression of the grinding bed and thus influencing the power consumption of the drives associated grinding roller via a variable contact pressure.
- a loosening of the grinding bed for example by fluidizing air, is conceivable.
- the power compensation control described above is on the one hand very effective and considerably cheaper compared to the known from the prior art speed control.
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012106554.3A DE102012106554A1 (de) | 2012-07-19 | 2012-07-19 | Verfahren und Anlage zur Zerkleinerung von Mahlgut mit einer Rollenmühle |
PCT/EP2013/064043 WO2014012792A2 (de) | 2012-07-19 | 2013-07-03 | Verfahren und anlage zur zerkleinerung von mahlgut mit einer rollenmühle |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2874750A2 true EP2874750A2 (de) | 2015-05-27 |
EP2874750B1 EP2874750B1 (de) | 2018-01-10 |
Family
ID=48790393
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13736838.7A Not-in-force EP2874750B1 (de) | 2012-07-19 | 2013-07-03 | Verfahren und anlage zur zerkleinerung von mahlgut mit einer rollenmühle |
Country Status (7)
Country | Link |
---|---|
US (1) | US10464072B2 (de) |
EP (1) | EP2874750B1 (de) |
JP (1) | JP6278527B2 (de) |
CN (1) | CN105102130B (de) |
DE (1) | DE102012106554A1 (de) |
DK (1) | DK2874750T3 (de) |
WO (1) | WO2014012792A2 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012106554A1 (de) * | 2012-07-19 | 2014-05-15 | Thyssenkrupp Resource Technologies Gmbh | Verfahren und Anlage zur Zerkleinerung von Mahlgut mit einer Rollenmühle |
CN108318362B (zh) * | 2018-02-05 | 2023-07-25 | 西华大学 | 一种滚压状态下的固态颗粒性能测定系统 |
JP7205690B2 (ja) * | 2018-12-12 | 2023-01-17 | Ubeマシナリー株式会社 | 竪型粉砕機 |
US10758912B1 (en) * | 2019-04-11 | 2020-09-01 | Gene P. Guthmiller | Material processing system |
DE102019210047B3 (de) * | 2019-07-08 | 2020-06-18 | Thyssenkrupp Ag | Vertikal-Rollenmühle |
WO2021226651A2 (de) * | 2020-05-13 | 2021-11-18 | Rubble Master Hmh Gmbh | Verfahren zur regelung eines brechers |
CN111732894B (zh) * | 2020-07-01 | 2021-08-31 | 青岛美尔高科技开发有限公司 | 一种高稳定性水性涂料的制备工艺 |
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DE1763432A1 (de) * | 1968-05-28 | 1971-06-09 | Cramer & Soehne Maschf | Selbsttaetige Regeleinrichtung fuer eine Muehle |
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JPS58159855A (ja) * | 1981-05-27 | 1983-09-22 | 三協電業株式会社 | 粉砕制御方法 |
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GB2118457B (en) * | 1982-04-13 | 1985-05-22 | Smidth & Co As F L | Edge runner mills |
DE3440238A1 (de) | 1984-11-03 | 1986-05-22 | Mannesmann AG, 4000 Düsseldorf | Vorrichtung zum wickeln von draht- oder feinstahlbunden hoher bundgewichte |
US4640464A (en) * | 1984-11-07 | 1987-02-03 | Combustion Engineering, Inc. | Roller mill control system |
GB2214106B (en) | 1987-12-24 | 1991-06-26 | Smidth & Co As F L | Vertical roller mill |
DE4019240A1 (de) * | 1989-06-24 | 1991-01-24 | Lenz Bernhard | Schrotmuehle, insbesondere nassschrotmuehle fuer die maischeherstellung bei der biererzeugung |
US5244157A (en) * | 1989-07-04 | 1993-09-14 | Loesche Gmbh | Air flow rolling mill |
DE4002867C1 (de) * | 1990-02-01 | 1991-08-29 | Evt Energie- Und Verfahrenstechnik Gmbh, 7000 Stuttgart, De | |
JP2711774B2 (ja) | 1992-05-29 | 1998-02-10 | 宇部興産株式会社 | 竪型粉砕機の運転方法 |
DK176500B1 (da) * | 1992-07-28 | 2008-06-02 | Kobe Steel Ltd | Fremgangsmåde til styring af en valsemölle |
DE19702854A1 (de) | 1997-01-27 | 1998-07-30 | Krupp Polysius Ag | Verfahren und Rollenmühle zur Zerkleinerung von Mahlgut |
US5875977A (en) * | 1998-05-13 | 1999-03-02 | Combustion Engineering, Inc. | Technique for improving the response time of pulverized coal boilers |
US6588690B1 (en) * | 2000-03-14 | 2003-07-08 | Komar Industries, Inc. | System and method for treating process material |
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DE102005026425A1 (de) * | 2005-06-08 | 2006-12-14 | Polysius Ag | Vorrichtung und Verfahren zum Trocknen und Desagglomerieren |
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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 |
DE102012106553B4 (de) * | 2012-07-19 | 2014-05-22 | Thyssenkrupp Resource Technologies Gmbh | Zerkleinerung von Mahlgut in einer Vertikalrollenmühle |
DE102012107043B4 (de) * | 2012-08-01 | 2017-08-17 | Thyssenkrupp Industrial Solutions Ag | Rollenmühle und Verfahren zum Zerkleinern von Mahlgut mit einer Rollenmühle |
-
2012
- 2012-07-19 DE DE102012106554.3A patent/DE102012106554A1/de not_active Withdrawn
-
2013
- 2013-07-03 US US14/415,606 patent/US10464072B2/en not_active Expired - Fee Related
- 2013-07-03 WO PCT/EP2013/064043 patent/WO2014012792A2/de active Application Filing
- 2013-07-03 DK DK13736838.7T patent/DK2874750T3/en active
- 2013-07-03 CN CN201380038381.6A patent/CN105102130B/zh active Active
- 2013-07-03 EP EP13736838.7A patent/EP2874750B1/de not_active Not-in-force
- 2013-07-03 JP JP2015522032A patent/JP6278527B2/ja active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2014012792A2 * |
Also Published As
Publication number | Publication date |
---|---|
EP2874750B1 (de) | 2018-01-10 |
US20150224512A1 (en) | 2015-08-13 |
WO2014012792A3 (de) | 2014-04-17 |
JP2015522414A (ja) | 2015-08-06 |
DK2874750T3 (en) | 2018-04-23 |
WO2014012792A2 (de) | 2014-01-23 |
CN105102130B (zh) | 2019-01-11 |
US10464072B2 (en) | 2019-11-05 |
JP6278527B2 (ja) | 2018-02-14 |
DE102012106554A1 (de) | 2014-05-15 |
CN105102130A (zh) | 2015-11-25 |
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