CN102463165A - Roller mill and method for comminuting brittle grinding stock - Google Patents
Roller mill and method for comminuting brittle grinding stock Download PDFInfo
- Publication number
- CN102463165A CN102463165A CN2011103781339A CN201110378133A CN102463165A CN 102463165 A CN102463165 A CN 102463165A CN 2011103781339 A CN2011103781339 A CN 2011103781339A CN 201110378133 A CN201110378133 A CN 201110378133A CN 102463165 A CN102463165 A CN 102463165A
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- CN
- China
- Prior art keywords
- axle
- temperature
- roll body
- roller mill
- roller
- 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.)
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Classifications
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- 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
- B02C4/44—Cooling or heating rollers or bars
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
- Rolls And Other Rotary Bodies (AREA)
Abstract
A roller mill according to the invention for comminuting brittle grinding stock, comprises at least one grinding roller and a counter-surface, wherein the grinding roller comprises a shaft and a roller body that are connected to each other by means of a shrink fit. Furthermore, a heating unit for heating up the shaft in the region of the shrink fit is provided.
Description
Technical field
The present invention relates to a kind of roller mill and method that is used to grind frangible abrasive material.
Background technology
Here the roller mill of being paid close attention to comprises at least one grinding roller and a corresponding surface, and wherein, corresponding surface can for example be made up of mill platform (vertical mill) or second grinding roller (roller press, material bed roller mill).Said at least one grinding roller comprises axle and roll body, and both interconnect through hot counterpart (shrink fit).
In practice, roll body slippage and impaired from its grinding roller sometimes, and the hot counterpart on mill axle and grinding roller is also maybe the while impaired.But the hot counterpart that is placed on the mill axle can keep in repair usually, and roll body generally can abandon, and the result except economic loss, also will bear long roller mill downtime.
Summary of the invention
Therefore, the problem that the present invention will solve is the roller mill and the method for confirming to be used to grind frangible abrasive material, so that the reduction of the hot counterpart between axle and the roll body reduces to minimum.
This problem solves through the characteristic of claim 1 and 9 according to the present invention.
Be used to grind the roller mill of frangible abrasive material according to the present invention, it comprises at least one grinding roller and a corresponding surface, and wherein, grinding roller comprises axle (especially solid shafting) and a roll body, and they interconnect through hot counterpart.In addition, a heating unit that is used in the zone of hot counterpart, making the axle intensification is set.Particularly, can the heating and cooling unit be inserted in the axle.
Using this roller mill to grind in the inventive method of frangible abrasive material, if the temperature of axle is lower than the temperature of roll body, and the temperature difference between axle and the roll body then makes this intensification when surpassing the first predetermined desired value.
The present invention based on duration of test, the situation of hot counterpart reduction clearly can take place in the whole starting stage of grinding operation, especially in the temperature of feeding material during greater than 120 ℃.This is influential, and at first roll body can correspondingly heat up, and because the thermal capacity of roll body, therefore the temperature balance between axle and the roll body is very slow.Therefore, only in the preparatory stage, the temperature difference between roll body and the axle is greater than 30 ℃.Under this temperature difference, the hot counterpart of not getting rid of between roll body and the axle will become insecure, and roll body can unexpected slippage.
From practice, known and to have cooled off shaft end, so that the special protection bearing.Usually, this cooling starts from first, so that above-mentioned influence still can further be strengthened.
Owing in the zone of hot counterpart, be provided with heating unit so that axle heats up according to the present invention, therefore can make the initial temperature differences leveling between roll body and the axle especially, the result can prevent reliably that hot counterpart from becoming insecure.
Although can learn the equipment that is used for temperature control from DE10024851A1 and EP1661624, especially for the equipment that grinding roller is heated up, these heating units are to be used for different purpose.In addition, problem to be solved by this invention can not occur there, because hot counterpart is not set between axle and roll body.Therefore, heating unit is not set in the zone of hot counterpart.
The other embodiment of the present invention constitutes the theme of dependent claims.
According to other preferred embodiment of the present invention, heating unit is to be made up of the electric heating part that is arranged in the axle.
In addition, can axle be arranged to be connected in work with cooling unit, so that this axle of cooling.Heating and/or cooling unit can be formed by at least one fluid circulation system alternately.
According to other particular of the present invention; Axle comprises two ends that are installed in rotation in the bearing; And in the central region of axle, be provided with and being connected of roll body; The both ends of axle are connected in work with a fluid circulation system, and the central region of axle is connected in work with second fluid circulation system, so that the temperature of Control Shaft.
Replace second fluid circulation system or in addition, also electric heating part can be set in axle.
Here, fluid circulation system can be any in water, salt solution or the Circulation and Hot Oil Spray system form.
In order to control heating and/or cooling unit, especially the temperature that first temperature sensor comes measurement axis can be set, and the temperature that second temperature sensor is measured roll body can be set.Yet, as selecting or additionally, can using at least one sensor to come the compression stress in the hot counterpart zone between measurement axis and the roll body.
As long as the temperature of axle is higher than the temperature of roll body and the temperature difference between axle and the roll body surpasses the second predetermined desired value, then according to other embodiment of the present invention, this axle of cooling in the zone of hot counterpart.
Description of drawings
Further advantage of the present invention and embodiment will be elaborated with description and accompanying drawing mode hereinafter, wherein,
Shown in Figure 1 is sketch map according to the grinding roller of roller mill of the present invention.
The specific embodiment
The grinding roller 1 of the roller mill that schematically shows among the figure comprises through interconnective roll body 2 of hot counterpart 4 (shown in broken lines among the figure) and axle 3.Axle 3 has two shaft end 3a that are installed in rotation in the bearing 5,6,3b.Hot counterpart 4 is arranged in the central region 3c of axle 3.
Equally, the central region 3c of axle is connected in work with the second fluid circulation system form of heating regime and cooling unit 9, so that heat or cool off the central region 3c of axle arbitraryly.For this purpose, the heating that is fit to and the cooling worm 9a that are connected with pump 9b, cooler 9c and heater 9d are embedded in the central region 3c of axle.As requested, start cooler 9c or heater 9d through control device 8.
In addition, provide first temperature sensor 10 that is connected with the central region 3c of axle to measure the temperature of the axle in the said zone.Correspondingly, second temperature sensor 11 is connected with roll body 2, so that measure the temperature of this roll body.The regional temperature of third and fourth temperature sensor 12 and 13 come difference measurement axis end 3a and 3b is provided in addition.
Replace this two temperature sensors 10,11 or in addition, can in hot counterpart 4 zones between axle 3 and the roll body 2, be provided for the sensor 14 of the compression stress of measurement axis district and roll body, as the indicator of joint stress (joint stress).All the sensors, cooling unit 7, heating and cooling unit 9 all are connected (seeing the dotted line among the figure) with control device 8.
By two temperature sensors 10,11, can detect the temperature difference between axle 3 and the roll body 2, and compare with first desired value.If by first temperature sensor measurement to the temperature of axle be lower than the temperature of the roll body that measures by second temperature sensor 11; If the temperature difference between axle and the roll body (for example surpasses the first predetermined desired value; 20 ℃); Then through control device 8 starting heater 9d and pump 9b, so that the central region 3c of axle intensification, thereby correspondingly reduce the temperature difference with roll body.This situation can occur in the initial period of grinding operation usually, and axle and roll body still are in the state of cooling at that time, and just at the hot abrasive material of feeding.
Replace temperature survey perhaps in addition, measure compression stresses, can monitor the quality of hot counterpart by sensor 14; If the value in the initial period is too low, axle is heated up.
If confirmed that by the measurement result of two temperature sensors 10,11 temperature of axle is higher than the temperature of roll body, and the temperature difference between axle and the roll body then realizes the cooling of central region 3c through starting cooler 9c and pump 9b above the second predetermined desired value.Can use for example water, salt solution or deep fat cooling agents such as (thermal oil).
Since rotatablely moving of grinding roller, in operating usually, shaft end 3a, the temperature in 3b zone can significantly increase, so that according to the temperature that is recorded respectively by third and fourth temperature sensor 12 and 13, come correspondingly to start cooler 7d and pump 7c through control device 8.
In above-mentioned exemplary through heating and the effective central region 3c of heated mandrel 3 of cooling unit 9.But, realize that intensification also is possible specially or additionally through being arranged in 3 an interior electric heating part 15 of controlling by control device 8 equally.
Use above-mentionedly can the axle hot counterpart zone in heated up by heating and cooling unit 9 and/or the heating unit that constitutes by heating member 10, thus the operating reliability of raising grinding roller.
Claims (10)
1. roller mill that is used to grind frangible abrasive material; It has at least one grinding roller (1) and corresponding surface; Wherein, Said grinding roller (1) comprises axle (3) and roll body (2), and said axle and roll body interconnect through hot counterpart, it is characterized in that being used for the heating unit (9) of the said axle of heating (3) in the zone of said hot counterpart (4).
2. according to the roller mill of claim 1, it is characterized in that said heating unit (9) is made up of the electric heating part (15) that is arranged in the said axle.
3. according to the roller mill of claim 1, it is characterized in that said axle (3) also is connected in work with the cooling unit (7) that is used to cool off said axle.
4. according to the roller mill of claim 3, it is characterized in that said heating and/or cooling unit (7,9) are made up of at least one fluid circulation system.
5. according to the roller mill of claim 1, it is characterized in that said axle (3) comprises and is installed in rotation on bearing (5; Two shaft ends 6) (3a, 3b), with the central region (3c) that then is arranged on said axle (3) being connected of said roll body (3); Wherein, in order to control the temperature of said axle, said shaft end (3a; 3b) be connected in work with first fluid circulation system, the central region (3c) of said axle (3) is connected in work with second fluid circulation system.
6. according to the roller mill of claim 5, it is characterized in that at least one in said two fluid circulation systems is made up of water, salt solution or Circulation and Hot Oil Spray.
7. according to the roller mill of claim 1, it is characterized in that second temperature sensor (11) that is provided with first temperature sensor (10) of the temperature that is used to measure said axle (3) and is used to measure the temperature of said roll body (2).
8. according to the roller mill of claim 1, it is characterized in that, be provided with the sensor (14) that at least one is used for the compression stress in the hot counterpart zone between measurement axis and the roll body.
9. a use is according to one or the roller mill of the multinomial aforementioned claim method of grinding frangible abrasive material; It is characterized in that; If the temperature of said axle is lower than the temperature of said roll body, and the temperature difference between axle (3) and the roll body (2) then heats said axle (3) above the first predetermined desired value.
10. according to the method for claim 9, it is characterized in that when the temperature of said axle is higher than the temperature of said roll body, and axle (3) cools off said (3) when surpassing the second predetermined desired value with the temperature difference between the roll body (2) in the zone of said hot counterpart.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010060557.3 | 2010-11-15 | ||
| DE102010060557.3A DE102010060557B4 (en) | 2010-11-15 | 2010-11-15 | Roller mill and method for the comminution of brittle regrind |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102463165A true CN102463165A (en) | 2012-05-23 |
| CN102463165B CN102463165B (en) | 2016-01-20 |
Family
ID=45999002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110378133.9A Expired - Fee Related CN102463165B (en) | 2010-11-15 | 2011-11-14 | For grinding roller mill and the method for frangible abrasive material |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN102463165B (en) |
| BR (1) | BRPI1106949A8 (en) |
| DE (1) | DE102010060557B4 (en) |
| DK (1) | DK179233B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106269048A (en) * | 2016-08-24 | 2017-01-04 | 上海制皂(集团)如皋有限公司 | Control three-roller grinding temperature system and device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015001617C5 (en) * | 2015-02-09 | 2020-08-13 | Khd Humboldt Wedag Gmbh | Grinding roller and method for removing a bandage and shrinking a bandage onto the shaft of the grinding roller |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2707907A1 (en) * | 1976-02-24 | 1977-08-25 | Trimay Engineering Co | Water cooled roll esp. guide roll in steel casting plant - with spiral internal passages for flow of water to give effective cooling without distortion |
| US4793172A (en) * | 1986-02-24 | 1988-12-27 | Italimpianti Of America Incorporated | Thermal crown controlled rolls |
| CN1085826A (en) * | 1993-03-11 | 1994-04-27 | 段炜 | Device for water cooling of grinding roller of wheat flour-milling |
| CN2400180Y (en) * | 1999-12-06 | 2000-10-11 | 中国肉类食品综合研究中心 | Internal cooling double-roller mill |
| DE10024851B4 (en) * | 2000-05-19 | 2005-06-16 | Erich Netzsch Gmbh & Co Holding Kg | Roller with deflection compensation |
| EP1661624A1 (en) * | 2004-11-24 | 2006-05-31 | F.B. LEHMANN Maschinenfabrik GmbH | Cylinder, especially rotating cylinder for a five cylinder structure used in chocolate manufacture |
| CN200939382Y (en) * | 2006-06-06 | 2007-08-29 | 康建文 | Heating tube cooling type grinding roller |
| CN201168619Y (en) * | 2008-03-22 | 2008-12-24 | 贵州航天乌江科技有限责任公司 | Cooling system of titanium sponge crusher gear roller |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB514327A (en) * | 1938-05-03 | 1939-11-06 | Friedrich Wilhelm Klein | Improved roll and process for its manufacture |
-
2010
- 2010-11-15 DE DE102010060557.3A patent/DE102010060557B4/en not_active Expired - Fee Related
-
2011
- 2011-11-08 BR BRPI1106949A patent/BRPI1106949A8/en not_active Application Discontinuation
- 2011-11-14 CN CN201110378133.9A patent/CN102463165B/en not_active Expired - Fee Related
- 2011-11-15 DK DKPA201170621A patent/DK179233B1/en not_active IP Right Cessation
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2707907A1 (en) * | 1976-02-24 | 1977-08-25 | Trimay Engineering Co | Water cooled roll esp. guide roll in steel casting plant - with spiral internal passages for flow of water to give effective cooling without distortion |
| US4793172A (en) * | 1986-02-24 | 1988-12-27 | Italimpianti Of America Incorporated | Thermal crown controlled rolls |
| CN1085826A (en) * | 1993-03-11 | 1994-04-27 | 段炜 | Device for water cooling of grinding roller of wheat flour-milling |
| CN2400180Y (en) * | 1999-12-06 | 2000-10-11 | 中国肉类食品综合研究中心 | Internal cooling double-roller mill |
| DE10024851B4 (en) * | 2000-05-19 | 2005-06-16 | Erich Netzsch Gmbh & Co Holding Kg | Roller with deflection compensation |
| EP1661624A1 (en) * | 2004-11-24 | 2006-05-31 | F.B. LEHMANN Maschinenfabrik GmbH | Cylinder, especially rotating cylinder for a five cylinder structure used in chocolate manufacture |
| CN200939382Y (en) * | 2006-06-06 | 2007-08-29 | 康建文 | Heating tube cooling type grinding roller |
| CN201168619Y (en) * | 2008-03-22 | 2008-12-24 | 贵州航天乌江科技有限责任公司 | Cooling system of titanium sponge crusher gear roller |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106269048A (en) * | 2016-08-24 | 2017-01-04 | 上海制皂(集团)如皋有限公司 | Control three-roller grinding temperature system and device |
| CN106269048B (en) * | 2016-08-24 | 2018-11-13 | 南通诺佰恩化工科技有限公司 | Control three-roller grinding temperature system and device |
Also Published As
| Publication number | Publication date |
|---|---|
| DK179233B1 (en) | 2018-02-19 |
| DE102010060557B4 (en) | 2016-05-19 |
| CN102463165B (en) | 2016-01-20 |
| DK201170621A (en) | 2012-05-16 |
| DE102010060557A1 (en) | 2012-05-16 |
| BRPI1106949A2 (en) | 2013-04-09 |
| BRPI1106949A8 (en) | 2015-04-28 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: In Germany Patentee after: ThyssenKrupp Industrial Solutions AG Address before: In Germany Patentee before: Thyssen Krupp industrial project LLC Address after: In Germany Patentee after: Thyssen Krupp industrial project LLC Address before: In Germany Patentee before: ThyssenKrupp Resources Technology Co.,Ltd. Address after: In Germany Patentee after: ThyssenKrupp Resources Technology Co.,Ltd. Address before: In Germany Patentee before: Thyssen Krupp resources technology Limited by Share Ltd. Address after: In Germany Patentee after: Thyssen Krupp resources technology Limited by Share Ltd. Address before: In Germany Patentee before: Thyssen Krupp, Hughes Limited by Share Ltd. Address after: In Germany Patentee after: Thyssen Krupp, Hughes Limited by Share Ltd. Address before: In Germany Patentee before: ThyssenKrupp Industrial Solutions AG |
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| CP02 | Change in the address of a patent holder |
Address after: essen Patentee after: ThyssenKrupp Industrial Solutions AG Address before: In Germany Patentee before: ThyssenKrupp Industrial Solutions AG |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20191114 |
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| CF01 | Termination of patent right due to non-payment of annual fee |