CN111659505A - Grinding roller bearing detection system for HP type coal mill - Google Patents
Grinding roller bearing detection system for HP type coal mill Download PDFInfo
- Publication number
- CN111659505A CN111659505A CN201910176189.2A CN201910176189A CN111659505A CN 111659505 A CN111659505 A CN 111659505A CN 201910176189 A CN201910176189 A CN 201910176189A CN 111659505 A CN111659505 A CN 111659505A
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- Prior art keywords
- grinding roller
- alarm
- oil
- temperature
- bearing
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- 238000000227 grinding Methods 0.000 title claims abstract description 119
- 239000003245 coal Substances 0.000 title claims abstract description 35
- 238000001514 detection method Methods 0.000 title claims abstract description 14
- 210000004907 gland Anatomy 0.000 claims abstract description 11
- 230000001050 lubricating effect Effects 0.000 claims abstract description 11
- 239000003921 oil Substances 0.000 claims description 44
- 239000010687 lubricating oil Substances 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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
- 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
-
- 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
- B02C23/04—Safety devices
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Rolling Contact Bearings (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention discloses a grinding roller bearing detection system for an HP type coal mill, wherein a grinding roller, a grinding roller shaft, a grinding roller end cover, a grinding roller seat upper gland and an upper bearing and a lower bearing enclose a lubricating chamber, a grinding roller head is fixedly arranged on one side, away from the grinding roller, of the grinding roller shaft, an oil measuring pipe is arranged along the axial direction of the grinding roller and penetrates through the grinding roller head, the grinding roller shaft and the grinding roller to be communicated with the lubricating chamber, a plurality of temperature sensors are arranged in the oil measuring pipe, the temperature sensors are electrically connected with a processor and a display which are positioned on the outer side of the coal mill through leads, an alarm is arranged in the processor, an alarm temperature range is arranged in the processor, when a temperature value detected by the temperature sensors is smaller than the alarm temperature range, the display displays normal temperature on the display, and when the temperature value. The temperature condition of the grinding roller bearing can be detected in real time, and the equipment maintenance time and the maintenance cost are reduced.
Description
Technical Field
The invention relates to the technical field of HP type coal mills, in particular to a grinding roller bearing detection system for an HP type coal mill.
Background
The coal mill is a machine for crushing and grinding coal blocks into coal powder, integrates crushing, drying, grinding and grading conveying, has high production efficiency, and is an important auxiliary device of a coal powder furnace. The coal grinding process is a process in which coal is crushed and the surface area thereof is increased continuously, and energy is consumed to increase a new surface area by overcoming the binding force between solid molecules. The coal is ground into coal powder in a coal mill mainly by three modes of crushing, crushing and grinding, wherein the energy consumed in the crushing process is the least, and the energy consumed in the grinding process is the most. The two or three modes of the various coal mills are combined in the pulverizing process, but the main mode is determined by the type of the coal mill.
At present, a grinding roller device in an HP coal mill is a component for grinding, and belongs to an important part of the HP coal mill. The bearing is arranged in the grinding roller device, and when the coal mill runs, the bearing rotates all the time. At present, the domestic HP type coal mill is not provided with a grinding roller bearing temperature detection system, the time and the position of a fault point cannot be found in advance in the running process of equipment, the maintenance preparation cannot be made in advance, when the coal mill stops running due to faults, the bearing is seriously damaged, the equipment must stop running immediately, and sudden influence can be caused on production.
Disclosure of Invention
In order to solve the problems in the prior art, the invention aims to provide a grinding roller bearing detection system for an HP-type coal mill, which can detect the temperature condition of a grinding roller bearing in real time and reduce the equipment maintenance time and cost.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a grinding roller bearing detection system for an HP type coal mill, which comprises a grinding roller, a grinding roller shaft, a grinding roller end cover, a grinding roller seat, an upper pressing cover, an upper bearing, a lower bearing, a grinding roller head and an oil measuring pipe, wherein the grinding roller, the grinding roller shaft, the grinding roller end cover, the grinding roller seat, the upper pressing cover and the upper bearing and the lower bearing enclose a lubricating chamber, one side of the grinding roller shaft, which is far away from the grinding roller, is fixedly provided with the grinding roller head, the oil measuring pipe is arranged along the axial direction of the grinding roller, the oil measuring pipe penetrates through the grinding roller head, the grinding roller shaft and the grinding roller to be communicated with the lubricating chamber, a plurality of temperature sensors are arranged in the oil measuring pipe, the temperature sensors are electrically connected with a processor and a display which are positioned outside the coal mill through leads, an alarm is arranged in the processor, an alarm temperature range is arranged in the processor, when, when the temperature value detected by the temperature sensor is larger than the alarm temperature range, the processor controls the alarm to alarm.
The improved structure is characterized in that two temperature sensors are arranged, and the two temperature sensors are immersed in lubricating oil in the oil pipe and are respectively positioned in the oil pipe close to the upper bearing and the lower bearing. After the bearing broke down, can generate heat and then make near bearing oil temperature rise, temperature sensor senses corresponding bearing department temperature data transmission to the display on, when the temperature was higher than the warning temperature range that sets up in the treater, can report to the police, and the staff can accurately judge out the trouble position of taking place, overhauls the processing to grinding roller bearing department in advance.
The improved grinding roller is characterized in that one end of the lead is connected with the processor and the display, the other end of the lead enters through a central hole of a trunnion of the grinding roller head, and then an oil pipe port at the middle position of the grinding roller head is connected with a temperature sensor positioned in the oil pipe. Through design benefit with the wire and coal pulverizer combination body, the wire is received and is arranged more regularly.
The improved alarm is a buzzer alarm or a flashing alarm. When the instrument breaks down, the alarm is convenient for timely remind workers of processing in the first time, and serious economic loss is avoided.
The further improvement is that a grinding roller sleeve is screwed on the grinding roller seat.
The improved grinding roller is characterized in that an oil seal is arranged in a gap between the grinding roller and the upper gland of the grinding roller seat, and one end of the oil seal is sealed through the oil seal gland in order to further realize the sealing of the lubricating chamber.
Compared with the prior art, the invention has the following beneficial effects:
the invention has simple structure and reasonable design, the temperature sensor is arranged in the oil measuring pipe, one end of the oil measuring pipe is communicated with the lubricating chamber, the temperature sensor is immersed in the lubricating oil in the oil measuring pipe, the temperature of each bearing can be accurately monitored in real time, when the temperature is detected to be higher than the alarm temperature range, the alarm is used for reminding and informing the working personnel, and the working personnel can carry out planned maintenance or replacement according to the situation, thereby better maintaining the grinding roller bearing, prolonging the service life of the grinding roller bearing and reducing the maintenance time and cost.
Drawings
The invention is described in further detail below with reference to specific embodiments and with reference to the following drawings.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
wherein the specific reference numerals are as follows: the grinding roller comprises a grinding roller 1, a grinding roller shaft 2, a grinding roller end cover 3, a grinding roller seat 4, a grinding roller sleeve 5, an upper pressing cover 6 of the grinding roller seat, an oil seal 7, an oil seal pressing cover 8, an upper bearing 9, a lower bearing 10, a lubricating chamber 11, a grinding roller head 12, an oil measuring pipe 13, a temperature sensor 14, a lead 15 and a display 16.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
The embodiment of the invention discloses a grinding roller shaft 2 bearing detection system for an HP type coal mill, as shown in figures 1 and 2, the system comprises a grinding roller 1, a grinding roller shaft 2, a grinding roller end cover 3, a grinding roller seat 4, a grinding roller seat upper gland 6, upper and lower bearings (9,10), a grinding roller head 12 and a measuring oil pipe 13, wherein the grinding roller 1, the grinding roller shaft 2, the grinding roller end cover 3, the grinding roller seat 4, the grinding roller seat upper gland 6, the upper and lower bearings (9,10) enclose a lubrication chamber 11, the grinding roller seat 4 is screwed with a grinding roller sleeve 5, one side of the grinding roller shaft 2 far away from the grinding roller 1 is fixedly provided with the grinding roller head 12, the measuring oil pipe 13 is arranged along the axial direction of the grinding roller 1, the measuring oil pipe 13 penetrates through the grinding roller head 12, the grinding roller shaft 2 and the grinding roller 1 to be communicated with the lubrication chamber 11, a plurality of temperature sensors 14 are arranged in the measuring oil pipe 13, the temperature sensors 14 are immersed in the lubricating oil pipe 13, the temperature sensors 14, the processor is internally provided with an alarm, the processor is internally provided with an alarm temperature range, when the temperature value detected by the temperature sensor 14 is smaller than the alarm temperature range, the display 16 displays normal temperature, and when the temperature value detected by the temperature sensor 14 is larger than the alarm temperature range, the processor controls the alarm to alarm.
Preferably, two temperature sensors 14 are provided, and the two temperature sensors 14 are immersed in the lubricating oil in the oil measuring pipe 13 and are respectively positioned in the oil measuring pipe 13 and close to the upper and lower bearings 10. After the bearing breaks down, can generate heat and then make near bearing oil temperature rise, temperature sensor 14 senses corresponding bearing department temperature data and transmits to display 16, when the temperature is higher than the warning temperature range that sets up in the treater, can report to the police, and the staff can accurately judge out the trouble position of taking place, overhauls the processing to grinding roller bearing department in advance.
Wherein, one end of a lead 15 is connected with a processor and a display 16, the other end of the lead 15 enters through a central hole of a trunnion of the grinding roller head 12, and then is connected with a temperature sensor 14 positioned in the oil measuring pipe 13 through a port of the oil measuring pipe 13 at the middle position of the grinding roller head 12. Through design benefit make up wire 15 and coal pulverizer integrative, wire 15 is received and is arranged more regularly.
When the instrument breaks down, in order to timely remind workers of processing in the first time and avoid serious economic loss, the alarm is preferably a buzzer alarm or a flash alarm.
Wherein, in order to further realize sealing lubricating chamber 11, the gap between grinding roller 1 and grinding roller seat upper gland 6 is provided with oil seal 7, and one end of oil seal 7 is sealed through oil seal gland 8.
The invention has simple structure and reasonable design, the temperature sensor 14 is arranged in the oil measuring pipe 13, one end of the oil measuring pipe 13 is communicated with the lubricating chamber 11, the temperature sensor 14 is immersed in the lubricating oil in the oil measuring pipe 13, the temperature of each bearing can be accurately monitored in real time, when the temperature is detected to be higher than the alarm temperature range, the alarm is used for reminding and informing the working personnel, and the working personnel can carry out planned maintenance or replacement according to the condition, thereby better maintaining the grinding roller bearing, prolonging the service life of the grinding roller bearing and reducing the maintenance time and the cost.
The present invention has been described in terms of specific examples, which are provided to aid understanding of the invention and are not intended to be limiting. For a person skilled in the art to which the invention pertains, several simple deductions, modifications or substitutions may be made according to the idea of the invention.
Claims (6)
1. A grinding roller bearing detection system for an HP type coal mill is characterized by comprising a grinding roller, a grinding roller shaft, a grinding roller end cover, a grinding roller seat upper gland, an upper bearing, a lower bearing, a grinding roller head and an oil measuring pipe, wherein the grinding roller, the grinding roller shaft, the grinding roller end cover, the grinding roller seat upper gland, the upper bearing and the lower bearing enclose a lubricating chamber, one side, away from the grinding roller, of the grinding roller shaft is fixedly provided with the grinding roller head, the oil measuring pipe is arranged along the axial direction of the grinding roller, the oil measuring pipe penetrates through the grinding roller head, the grinding roller shaft and the grinding roller and is communicated with the lubricating chamber, a plurality of temperature sensors are arranged in the oil measuring pipe, the temperature sensors are electrically connected with a processor and a display which are positioned outside the coal mill through leads, an alarm is arranged in the processor, an alarm temperature range is arranged in the processor, and when, the display is normal, and when the temperature value detected by the temperature sensor is larger than the alarm temperature range, the processor controls the alarm to give an alarm.
2. The grinding roller bearing detection system for an HP type coal pulverizer of claim 1 wherein there are two of said temperature sensors, two of said temperature sensors being immersed in the lubricating oil in said oil tube and located in the oil tube adjacent to said upper and lower bearings, respectively.
3. The grinding roller bearing detection system for an HP type coal pulverizer as claimed in claim 1, wherein one end of said wire is connected to said processor and display, and the other end of said wire enters through a trunnion central hole of the grinding roller head and is connected to a temperature sensor located in the oil tube through an oil tube port at a middle position of the grinding roller head.
4. The grinding roller bearing detection system for an HP-type coal pulverizer of claim 1, wherein the alarm is a beeping alarm or a flashing alarm.
5. The grinding roller bearing detection system for an HP type coal pulverizer as defined in claim 1, wherein a grinding roller sleeve is threadably connected to said grinding roller seat.
6. The grinding roller bearing detection system for the HP type coal pulverizer as claimed in claim 1, wherein an oil seal is disposed in a gap between the grinding roller and a gland on the grinding roller seat, and one end of the oil seal is sealed by the oil seal gland.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910176189.2A CN111659505A (en) | 2019-03-08 | 2019-03-08 | Grinding roller bearing detection system for HP type coal mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910176189.2A CN111659505A (en) | 2019-03-08 | 2019-03-08 | Grinding roller bearing detection system for HP type coal mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111659505A true CN111659505A (en) | 2020-09-15 |
Family
ID=72382429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910176189.2A Pending CN111659505A (en) | 2019-03-08 | 2019-03-08 | Grinding roller bearing detection system for HP type coal mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111659505A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4420064A (en) * | 1979-12-17 | 1983-12-13 | Krupp Polysius Ag | Means for lubricating radial shaft sealing rings in grinding rolls |
| CN1163798A (en) * | 1996-04-29 | 1997-11-05 | 泰亚兹赫马什公司 | Grinding roll |
| CN201216941Y (en) * | 2008-07-18 | 2009-04-08 | 赵冬 | Thin oil lubricating device for vertical grinder cylinder bearing |
| CN201989211U (en) * | 2011-02-25 | 2011-09-28 | 江苏牧羊集团有限公司 | Sawdust granulator compression roller |
| CN204128696U (en) * | 2014-08-04 | 2015-01-28 | 沈阳宝钢钢材贸易有限公司 | A kind of bearing temperature pick-up unit |
| CN204287819U (en) * | 2014-12-30 | 2015-04-22 | 华润电力（菏泽）有限公司 | A kind of temperature monitoring system |
| CN205761396U (en) * | 2016-06-14 | 2016-12-07 | 张超 | A kind of novel double-roller formula disintegrating machine |
| CN209697055U (en) * | 2019-03-08 | 2019-11-29 | 上海戎川机电工程设备有限公司 | A kind of grinding roller bearing detection system for HP type coal pulverizer |
-
2019
- 2019-03-08 CN CN201910176189.2A patent/CN111659505A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4420064A (en) * | 1979-12-17 | 1983-12-13 | Krupp Polysius Ag | Means for lubricating radial shaft sealing rings in grinding rolls |
| CN1163798A (en) * | 1996-04-29 | 1997-11-05 | 泰亚兹赫马什公司 | Grinding roll |
| CN201216941Y (en) * | 2008-07-18 | 2009-04-08 | 赵冬 | Thin oil lubricating device for vertical grinder cylinder bearing |
| CN201989211U (en) * | 2011-02-25 | 2011-09-28 | 江苏牧羊集团有限公司 | Sawdust granulator compression roller |
| CN204128696U (en) * | 2014-08-04 | 2015-01-28 | 沈阳宝钢钢材贸易有限公司 | A kind of bearing temperature pick-up unit |
| CN204287819U (en) * | 2014-12-30 | 2015-04-22 | 华润电力（菏泽）有限公司 | A kind of temperature monitoring system |
| CN205761396U (en) * | 2016-06-14 | 2016-12-07 | 张超 | A kind of novel double-roller formula disintegrating machine |
| CN209697055U (en) * | 2019-03-08 | 2019-11-29 | 上海戎川机电工程设备有限公司 | A kind of grinding roller bearing detection system for HP type coal pulverizer |
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