CN102463165B - For grinding roller mill and the method for frangible abrasive material - Google Patents
For grinding roller mill and the method for frangible abrasive material Download PDFInfo
- Publication number
- CN102463165B CN102463165B CN201110378133.9A CN201110378133A CN102463165B CN 102463165 B CN102463165 B CN 102463165B CN 201110378133 A CN201110378133 A CN 201110378133A CN 102463165 B CN102463165 B CN 102463165B
- Authority
- CN
- China
- Prior art keywords
- axle
- roll body
- temperature
- roller mill
- described axle
- 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.)
- Expired - Fee Related
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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
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
- B02C4/44—Cooling or heating rollers or bars
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
- Rolls And Other Rotary Bodies (AREA)
Abstract
For grinding roller mill and the method for frangible abrasive material.Comprise at least one grinding roller and corresponding surface according to the present invention for the roller mill grinding frangible abrasive material, wherein, described grinding roller comprises axle and roll body, and described axle and roll body are interconnected by hot counterpart.In addition, the heating unit that the axle in hot counterpart region is heated up is provided for.
Description
Technical field
The present invention relates to a kind of roller mill for grinding frangible abrasive material and method.
Background technology
Here paid close attention to roller mill comprises at least one grinding roller and a corresponding surface, and wherein, corresponding surface can be such as made up of mill platform (vertical mill) or second grinding roller (roller press, material bed roller mill).At least one grinding roller described comprises axle and roll body, and both are interconnected by hot counterpart (shrinkfit).
In practice, roll body is sometimes from slippage its grinding roller and impaired, and the hot counterpart on mill axle and grinding roller also may be simultaneously impaired.But the hot counterpart be placed on mill axle can keep in repair usually, and roll body generally can abandon, result, except economic loss, also will bear longer roller mill downtime.
Summary of the invention
Therefore, the problem to be solved in the present invention is the roller mill and the method that determine grinding frangible abrasive material, reduces to minimum to make the reduction of the hot counterpart between axle and roll body.
This problem is solved by the feature of claim 1 and 9 according to the present invention.
According to the present invention for grinding the roller mill of frangible abrasive material, it comprises at least one grinding roller and a corresponding surface, and wherein, grinding roller comprises axle (especially solid shafting) and roll body, and they are interconnected by hot counterpart.In addition, a heating unit for making axle heat up in the region of hot counterpart is set.Particularly, heating and cooling unit can be inserted in axle.
Grind in the inventive method of frangible abrasive material at this roller mill of use, if the temperature of axle is lower than the temperature of roll body, and when the temperature difference between axle and roll body exceedes the first predetermined desired value, then make this axle heat up.
The present invention based on duration of test, clearly can occur in the whole starting stage of grinding operation hot counterpart weaken situation, especially when the temperature of feeding material is greater than 120 DEG C.This is influential, and first roll body can correspondingly heat up, and because the thermal capacity of roll body, the equalized temperature therefore between axle and roll body slowly.Therefore, only in the preparatory stage, the temperature difference between roll body and axle is greater than 30 DEG C.Under this temperature difference, the hot counterpart do not got rid of between roll body and axle will become insecure, and roll body can unexpected slippage.
Know from practice and wanted cooling shaft end, so that special protection bearing.Usually, this cooling starts from first, so that above-mentioned impact still can be strengthened further.
Heat up to make axle owing to being provided with heating unit according to the present invention in the region of hot counterpart, therefore can make the initial temperature differences leveling between roll body and axle especially, result can reliably prevent hot counterpart from becoming insecure.
Although can learn the equipment for temperature control from DE10024851A1 and EP1661624, the equipment heated up especially for making grinding roller, these heating units are for different objects.In addition, problem to be solved by this invention there will not be there, because do not arrange hot counterpart between axle and roll body.Therefore, in the region of hot counterpart, heating unit is not set.
Other embodiments of the present invention form the theme of dependent claims.
According to other preferred embodiment of the present invention, heating unit is made up of the electric heating part be arranged in axle.
In addition, axle can be arranged to be connected on working with cooling unit, to cool this axle.Heating and/or cooling unit can be formed alternately by least one fluid circulation system.
According to other particular of the present invention, axle comprises two ends be installed in rotation in bearing, and the connection with roll body is set in the central region of axle, the both ends of axle are connected on working with a fluid circulation system, the central region of axle is connected on working with the second liquid circulatory system, to control the temperature of axle.
Replace the second liquid circulatory system or in addition, also electric heating part can be set in axle.
Here, fluid circulation system can be any one in water, salt solution or Circulation and Hot Oil Spray system form.
In order to control heating and/or cooling unit, the first temperature sensor can be set especially to measure the temperature of axle, and the second temperature sensor can be set to measure the temperature of roll body.But, as selecting or additionally, at least one sensor can being used to measure the compression stress in the hot counterpart region between axle and roll body.
As long as the temperature of axle exceedes the second predetermined desired value higher than the temperature of roll body and the temperature difference between axle and roll body, then according to other embodiments of the present invention, in the region of hot counterpart, cool this axle.
Accompanying drawing explanation
Further advantage of the present invention and embodiment will hereafter be described in detail with description and accompanying drawing mode, wherein,
Figure 1 shows that the schematic diagram of the grinding roller according to roller mill of the present invention.
Detailed description of the invention
The grinding roller 1 of the roller mill schematically shown in figure comprises by the interconnective roll body 2 of hot counterpart 4 (shown in broken lines in figure) and axle 3.Axle 3 has two and is installed in rotation on bearing 5, the shaft end 3a in 6,3b.Hot counterpart 4 is arranged in the central region 3c of axle 3.
Shaft end 3a, 3b are connected with the cooling unit 7 of first liquid circulatory system form.For this purpose, the cooling worm 7a be connected with pump 7c and cooler 7d, 7b is embedded in shaft end 3a, in 3b.
Equally, the central region 3c of axle is connected on working with the heating of second liquid circulatory system form and cooling unit 9, to heat or the central region 3c of cooling shaft arbitraryly.For this purpose, the heating be applicable to be connected with pump 9b, cooler 9c and heater 9d and cooling worm 9a are embedded in the central region 3c of axle.As requested, cooler 9c or heater 9d is started by control device 8.
In addition, provide the first temperature sensor 10 be connected with the central region 3c of axle to measure the temperature of the axle in described region.Correspondingly, the second temperature sensor 11 is connected with roll body 2, to measure the temperature of this roll body.The third and fourth temperature sensor 12 and 13 is provided to measure the regional temperature of shaft end 3a and 3b respectively in addition.
Replace this two temperature sensors 10,11 or in addition, the sensor 14 of the compression stress for measuring axle district and roll body can be set in hot counterpart 4 region between axle 3 and roll body 2, as the indicator of joint stress (jointstress).All the sensors, cooling unit 7, heating and cooling unit 9 are all connected with control device 8 (dotted line see in figure).
By two temperature sensors 10,11, can the temperature difference between detection axis 3 and roll body 2, and compare with the first desired value.If by the first temperature sensor measurement to the temperature of axle lower than the temperature of the roll body measured by the second temperature sensor 11, if the temperature difference between axle and roll body exceedes the first predetermined desired value (such as, 20 DEG C), then start heater 9d and pump 9b by control device 8, to make the central region 3c of axle heat up, thus 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 are still in the state of cooling at that time, and just at the abrasive material of feeding heat.
Replace temperature survey or in addition, measure compression stress by sensor 14, the quality of hot counterpart can be monitored; If the value in the initial period is too low, make axle heat up in the same old way.
If determined the temperature of temperature higher than roll body of axle by the measurement result of two temperature sensors 10,11, and the temperature difference between axle and roll body exceedes the second predetermined desired value, then realize the cooling of axle central region 3c by starting cooler 9c and pump 9b.The cooling agents such as such as water, salt solution or deep fat (thermaloil) can be used.
Due to the rotary motion of grinding roller, in usually operating, the temperature in shaft end 3a, 3b region can significantly increase, so that according to the temperature recorded respectively by the third and fourth temperature sensor 12 and 13, correspondingly start cooler 7d and pump 7c by control device 8.
Can the central region 3c of effective heated mandrel 3 by heating and cooling unit 9 in above-mentioned exemplary.But, be also possible by being arranged in that the electric heating part 15 controlled by control device 8 equally in axle 3 realizes heating up specially or additionally.
Use above-mentioned by heating and cooling unit 9 and/or the heating unit that is made up of heating member 10, the axle in hot counterpart region can being made to heat up, thus improve the operating reliability of grinding roller.
Claims (9)
1. one kind for grinding the roller mill of frangible abrasive material, it has at least one grinding roller (1) and corresponding surface, and wherein, described grinding roller (1) comprises axle (3) and roll body (2), described axle and roll body are interconnected by hot counterpart
It is characterized in that, being provided with first temperature sensor (10) of the temperature for measuring described axle (3) and the second temperature sensor (11) for the temperature of measuring described roll body (2), and
When exceeding the first predetermined desired value for the temperature difference between described axle (3) and roll body (2), the heating unit (9) of axle (3) described in the heated in areas of described hot counterpart (4).
2. according to roller mill according to claim 1, it is characterized in that, described heating unit (9) is made up of the electric heating part be arranged in described axle (15).
3. according to roller mill according to claim 1, it is characterized in that, described axle (3) is also connected on working with the cooling unit (7) for cooling described axle.
4. according to roller mill according to claim 3, it is characterized in that, described heating unit (9) and/or cooling unit (7) are made up of at least one fluid circulation system.
5. according to roller mill according to claim 1, it is characterized in that, described axle (3) comprises and is installed in rotation on bearing (5,6) two shaft end (3a in, 3b), the central region (3c) of described axle (3) is then arranged on the connection of described roll body (2), wherein, in order to control the temperature of described axle, described shaft end (3a, 3b) be connected on working with the first liquid circulatory system, the central region (3c) of described axle (3) is connected on working with the second liquid circulatory system.
6. according to roller mill according to claim 5, it is characterized in that, at least one in described two fluid circulation systems is made up of water, salt solution or Circulation and Hot Oil Spray.
7. according to roller mill according to claim 1, it is characterized in that, being provided with at least one for measuring the sensor (14) of the compression stress in the hot counterpart region between axle and roll body.
8. one kind uses the method for grinding frangible abrasive material according to the roller mill described in any one in aforementioned claim, it is characterized in that, when the temperature of described axle is lower than the temperature of described roll body, and the temperature difference between axle (3) and roll body (2) exceedes the first predetermined desired value, then heat described axle (3).
9. in accordance with the method for claim 8, it is characterized in that, when the temperature of described axle is higher than the temperature of described roll body, and the temperature difference between axle (3) and roll body (2) is when exceeding the second predetermined desired value, in the region of described hot counterpart, cool described axle (3).
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 CN102463165A (en) | 2012-05-23 |
| CN102463165B true 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) |
Families Citing this family (2)
| 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 |
| 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 |
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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102463165A (en) | 2012-05-23 |
| BRPI1106949A2 (en) | 2013-04-09 |
| DE102010060557B4 (en) | 2016-05-19 |
| DE102010060557A1 (en) | 2012-05-16 |
| DK179233B1 (en) | 2018-02-19 |
| BRPI1106949A8 (en) | 2015-04-28 |
| DK201170621A (en) | 2012-05-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20191114 |