CN117760544A - Method for measuring vibration condition of crystallizer vibration device - Google Patents
Method for measuring vibration condition of crystallizer vibration device Download PDFInfo
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- CN117760544A CN117760544A CN202311626662.5A CN202311626662A CN117760544A CN 117760544 A CN117760544 A CN 117760544A CN 202311626662 A CN202311626662 A CN 202311626662A CN 117760544 A CN117760544 A CN 117760544A
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000005259 measurement Methods 0.000 claims description 33
- 238000009749 continuous casting Methods 0.000 abstract description 18
- 238000001514 detection method Methods 0.000 abstract description 18
- 230000008439 repair process Effects 0.000 abstract description 3
- 238000009628 steelmaking Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 10
- 238000012423 maintenance Methods 0.000 description 6
- 239000002585 base Substances 0.000 description 5
- 238000005266 casting Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000003637 basic solution Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Abstract
The invention relates to the technical field of steel-making continuous casting equipment detection, and particularly discloses a method for measuring the vibration condition of a crystallizer vibration device, which comprises the following steps: s1: placing a frame level on the upper surface plane of the crystallizer vibration device, and adjusting the frame level to be in a horizontal state; s2: setting a contrast crystallizer vibration device, installing a magnetic dial indicator, and adjusting a dial indicator of the magnetic dial indicator to be zero; s3: the pulling speed is manually changed in a segmented mode, the front-back offset and the left-right offset of the crystallizer vibrating device under the corresponding pulling speed are measured and recorded by using a magnetic dial indicator, the vibration condition of the crystallizer vibrating device is measured, and the problems that the equipment failure rate is improved, and the normal operation of the continuous casting line is affected due to the fact that the conventional continuous casting line cannot realize the calibration and repair due to long time consumption and low detection precision when detecting the vibration condition of the crystallizer vibrating device are solved.
Description
Technical Field
The application relates to the technical field of steel-making continuous casting equipment detection, and particularly discloses a method for measuring the vibration condition of a crystallizer vibration device.
Background
Continuous casting technology in the metallurgical industry has been widely used as a mature technology, wherein the quality of continuous casting equipment performance directly affects continuous casting yield, accidents, casting blank quality and various economic indexes. Particularly, the vibration condition of the core component crystallizer vibration device is a main control mechanism which directly influences the initial shell growth and the demolding process when molten steel passes through the crystallizer, not only plays a role in improving the lubrication effect between a casting blank and a crystallizer interface, but also prevents the casting blank from being stuck to the wall of the crystallizer to be broken.
The vibration condition of the existing crystallizer vibration device is accurately measured in an off-line operation mode, but the off-line measurement needs to be carried out by stopping a continuous casting production line to remove the vibration device from a processing workshop, the stop time is at least one week, however, the long stop time affects the operation rate of continuous casting equipment and production continuity, and therefore the off-line measurement is usually adopted for the newly-manufactured vibration device.
The existing detection method of the online vibration condition of the crystallizer vibration device mainly comprises a coin detection method and a bowl water detection method, wherein the coin detection method and the bowl water detection method both react by utilizing the high sensitivity of a detection medium to vibration and obtain whether the vibration condition of the vibration device is strong or not, the detection method can only be used as a rough detection conclusion, the use condition and the use period cannot be judged by directly using a data standard, and the accurate measurement cannot be realized. However, the existing continuous casting production line has larger gauge, the working condition of simultaneously running a plurality of sets of crystallizer vibrating devices on line exists, the crystallizer vibrating devices are used as core equipment, the replacement time of each set of equipment is required to be more than 5 months, the equipment is usually only used for annual detection and replacement, if the existing coin detection method and the existing bowl water detection method are adopted for detection and replacement, the time is long, the accuracy is low, the equipment is difficult to be subjected to definite verification and repair, the failure rate of the crystallizer vibrating devices is improved, the equipment failure and the shutdown directly lead to full line accident and production stoppage and casting blank quality out of control, and great economic loss is caused, so the inventor has the problem in view of the above, and provides a method for measuring the vibration condition of the crystallizer vibrating devices.
Disclosure of Invention
The invention aims to solve the problems that the equipment failure rate is improved and the normal operation of the continuous casting production line is affected because the calibration and repair cannot be realized due to long time consumption and low detection precision when the traditional continuous casting production line detects the vibration condition of the crystallizer vibration device.
In order to achieve the above object, the basic solution of the present invention provides a method for measuring the vibration condition of a vibration device of a mold, comprising the steps of:
s1: the frame level gauge is vertically placed on the plane of the upper surface of the measured crystallizer vibration device, and the frame level gauge is adjusted to be in a horizontal state;
s2: setting a reference crystallizer vibration device on one side adjacent to the measured crystallizer vibration device, mounting a magnetic force dial indicator by taking the upper surface plane of the reference crystallizer vibration device as a reference plane, and adjusting the dial indicator of the magnetic force dial indicator to be zero;
s3: and manually changing the pulling speed of the crystallizer vibration device in a sectional manner, measuring and recording the front-back offset and the left-right offset of the crystallizer vibration device at the corresponding pulling speed by using a magnetic dial indicator, and completing the measurement of the vibration condition of the crystallizer vibration device.
Further, in the step S2, before the dial indicator of the magnetic dial indicator is adjusted to zero, the measuring head of the magnetic dial indicator is adjusted to be in point contact with the side surface of the frame level, and the distance between the position of the contact point of the measuring head and the frame level and the upper edge of the side surface of the frame level is 100mm to 120mm.
Further, in the step S3, the pulling speed of the crystallizer vibrating device is changed in a sectional manner in a range of 1.5m/min to 3m/min.
Further, in the step S3, the number of measurements per set of the mold vibrating device is 4 to 6.
Further, in the step S3, the total measurement duration of each set of crystallizer vibration device is 8-10min.
Further, the magnetic force dial indicator comprises a magnetic attraction base detachably connected with the top surface of the control crystallizer vibration device and a measurement dial indicator which is arranged on the magnetic attraction base and used for measuring the structural offset of the crystallizer vibration device.
Compared with the prior art, the method has the advantages that the frame level gauge and the measured crystallizer vibration device are aligned and adjusted to be in a horizontal state, the method is used for calibrating the frame level gauge and is used as a measurement reference standard, the perpendicularity of the frame level gauge is ensured, the measurement error of the magnetic force dial indicator is greatly reduced, the contact position of the measuring head on the frame level gauge is limited, the measurement travel distance is reserved for the measuring head, the offset of the crystallizer vibration device is conveniently and accurately measured, the measurement threshold and the requirement of the vibration condition of the crystallizer vibration device are reduced, the measurement operation is simpler and more convenient, meanwhile, the use condition and the use period of the crystallizer vibration device are predicted according to the measured data, the preventive maintenance of the crystallizer vibration device is facilitated in advance, the equipment failure rate is reduced, and the problems that the fixed maintenance cannot be realized due to long time consumption and low detection precision when the traditional continuous casting production line detects the vibration condition of the crystallizer vibration device are solved, the failure rate of the equipment is improved, and the normal operation of the continuous casting production line is influenced are solved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 shows a schematic diagram of a method for measuring vibration conditions of a vibration device of a crystallizer according to an embodiment of the present application.
Detailed Description
In order to further describe the technical means and effects adopted by the present invention for achieving the intended purpose, the following detailed description will refer to the specific implementation, structure, characteristics and effects according to the present invention with reference to the accompanying drawings and preferred embodiments.
Reference numerals in the drawings of the specification include: the device comprises a crystallizer vibrating device 1, a reference crystallizer vibrating device 2, a frame level meter 3, a magnetic force dial indicator 4, a magnetic attraction base 5, a measurement dial indicator 6 and a measuring head 7.
A method for measuring the vibration condition of a vibration device of a mold, embodiment 1 is shown in fig. 1 and comprises the steps of:
s1: installing a frame level 3, vertically placing the frame level 3 on the upper surface plane of the crystallizer vibration device 1 to be measured, and adjusting the frame level 3 to be in a horizontal state, wherein eight sets of crystallizer vibration devices 1 to be measured are arranged in total;
s2: adjusting a magnetic force percentage table 4, arranging a comparison crystallizer vibration device 2 on the right side adjacent to the measured crystallizer vibration device 1, mounting the magnetic force percentage table 4 by taking the upper surface plane of the comparison crystallizer vibration device 2 as a reference plane, and adjusting the dial pointer of the magnetic force percentage table 4 to be zero, wherein before the dial pointer of the magnetic force percentage table 4 is adjusted to be zero, the measuring head 7 of the magnetic force percentage table 4 is adjusted to be in point contact with the right side surface of the frame level meter 3, and the distance between the position of the contact point of the measuring head 7 and the frame level meter 3 and the upper end edge of the side surface of the frame level meter 3 is 100mm;
s3: the method comprises the steps of carrying out data measurement and data recording, manually changing the pulling speed of the crystallizer vibration device 1 in a sectionalized manner, measuring and recording the front-back offset and the left-right offset of the crystallizer vibration device 1 under the corresponding pulling speed by using a magnetic force dial indicator 4, and completing the measurement of the vibration condition of the crystallizer vibration device 1, wherein the vibration condition data measurement work of the crystallizer vibration device 1 is carried out in a continuous casting production process shutdown or equipment maintenance time period, the pulling speed of the crystallizer vibration device 1 is changed in a sectionalized manner within the range of 1.5m/min to 3m/min, the measurement times of each set of crystallizer vibration device 1 are 6 times, and the total measurement time length of each set of crystallizer vibration device 1 is 10min, so that the continuous casting production line is required to be stopped for 80min.
Wherein, as shown in fig. 1, the magnetic force dial indicator 4 comprises a magnetic attraction base 5 detachably connected with the top surface of the control crystallizer vibration device 2 and a measurement dial indicator 6 mounted on the magnetic attraction base 5 and used for measuring the structural offset of the crystallizer vibration device 1.
According to the method for measuring the vibration condition of the crystallizer vibration device 1 provided in the embodiment, the following six groups of tests with different pulling speeds are sequentially performed on eight sets of crystallizer vibration devices 1, and test results of vibration working condition offset values of the crystallizer vibration devices 1 listed in the following table are obtained:
vibration working condition offset (unit: mm) of crystallizer vibration device
From the test results listed in the above table, the following were obtained: as the pulling speed of the crystallizer vibration device 1 decreases, the front-back offset and the left-right offset of each set of crystallizer vibration devices 1 gradually decrease, wherein when the pulling speed decreases to 1.5m/min compared with the original offset at the pulling speed of 3m/min, the crystallizer vibration device 1 with the largest front-back offset change amplitude is the crystallizer vibration device 1 with the number 3, the crystallizer vibration device 1 with the smallest front-back offset change amplitude is the crystallizer vibration device 1 with the number 5, the crystallizer vibration device 1 with the largest left-right offset change amplitude is the crystallizer vibration device 1 with the number 5, and therefore, in the eight sets of crystallizer vibration devices 1, equipment maintenance and replacement should be performed on the crystallizer vibration device 1 with the number 3 first.
Example 2 is the same as the structure and connection of the structures adopted in example 1 and the operation procedure for measuring the vibration condition of the mold vibration device 1, and the difference between example 2 and example 1 is that: in step S2, the distance between the position of the contact point of the measuring head 7 with the frame level 3 and the upper edge of the side face of the frame level 3 is 110mm, and in step S3, the number of measurements per set of the mold vibrating devices 1 is 5, and the total measurement duration per set of the mold vibrating devices 1 is 9min.
Example 3 is the same as the structure and connection of the structures employed in example 1 and the operation procedure for measuring the vibration condition of the mold vibration device 1, and the difference between example 3 and example 1 is that: in step S2, the distance between the position of the contact point of the measuring head 7 with the frame level 3 and the upper edge of the side face of the frame level 3 is 120mm, and in step S3, the number of measurements per set of the mold vibrating devices 1 is 4, and the total measurement duration per set of the mold vibrating devices 1 is 8min.
By carrying out the embodiments of examples 1 to 3, the following conclusions are drawn:
compared with the prior art, the method has the advantages that the frame level meter 3 is aligned with the measured crystallizer vibration device 1 and is adjusted to be in a horizontal state, the method is used for calibrating the frame level meter 3 to serve as a measurement reference standard, the perpendicularity of the frame level meter 3 is ensured, the measurement error of the magnetic force dial indicator 4 is greatly reduced, the measurement travel distance is reserved for the measurement head 7 by limiting the contact position of the measurement head 7 on the frame level meter 3, the offset of the crystallizer vibration device 1 is conveniently and accurately measured, the measurement threshold and the requirement of the vibration condition of the crystallizer vibration device 1 are reduced, the measurement operation is simpler and more convenient, meanwhile, the service condition and the service period of the crystallizer vibration device 1 are predicted according to the measured data, the prevention and maintenance of the crystallizer vibration device 1 are facilitated, the equipment failure rate is reduced, and the problem that the failure rate of the equipment is improved and the normal operation of the continuous casting line is influenced due to the fact that the fixed maintenance cannot be realized when the traditional continuous casting line detects the vibration condition of the crystallizer vibration device is low in time consumption duration and detection accuracy is solved.
The present invention is not limited to the above embodiments, but is capable of modification and variation in detail, and other modifications and variations can be made by those skilled in the art without departing from the scope of the present invention.
Claims (6)
1. A method for measuring the vibration conditions of a vibrating device of a crystallizer, comprising the steps of:
s1: the frame level gauge is vertically placed on the plane of the upper surface of the measured crystallizer vibration device, and the frame level gauge is adjusted to be in a horizontal state;
s2: setting a reference crystallizer vibration device on one side adjacent to the measured crystallizer vibration device, mounting a magnetic force dial indicator by taking the upper surface plane of the reference crystallizer vibration device as a reference plane, and adjusting the dial indicator of the magnetic force dial indicator to be zero;
s3: and manually changing the pulling speed of the crystallizer vibration device in a sectional manner, measuring and recording the front-back offset and the left-right offset of the crystallizer vibration device at the corresponding pulling speed by using a magnetic dial indicator, and completing the measurement of the vibration condition of the crystallizer vibration device.
2. A method for measuring the vibration conditions of a vibration device of a mold according to claim 1, wherein in said step S2, before the dial indicator of the magnetic dial indicator is zeroed, the measuring head of the magnetic dial indicator is set in point contact with the side surface of the frame level, and the distance between the position of the contact point of the measuring head with the frame level and the upper edge of the side surface of the frame level is 100mm to 120mm.
3. A method for measuring the vibration conditions of a mold vibration device according to claim 1, characterized in that in said step S3, the pulling speed of the mold vibration device is changed in sections in a range of 1.5m/min to 3m/min.
4. A method for measuring the vibration conditions of a mold vibration device according to claim 3, wherein in said step S3, the number of measurements per set of mold vibration device is 4 to 6.
5. A method for measuring the vibration conditions of a mold vibration device according to claim 4, wherein in said step S3, the total time period of measurement of each set of mold vibration devices is 8-10min.
6. A method for measuring the vibration condition of a mold vibration device according to any one of claims 1 to 5, wherein the magnetic dial gauge comprises a magnetic base detachably connected to the top surface of the reference mold vibration device and a measuring dial gauge mounted on the magnetic base for measuring the structural deviation of the mold vibration device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311626662.5A CN117760544A (en) | 2023-11-30 | 2023-11-30 | Method for measuring vibration condition of crystallizer vibration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311626662.5A CN117760544A (en) | 2023-11-30 | 2023-11-30 | Method for measuring vibration condition of crystallizer vibration device |
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| Publication Number | Publication Date |
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| CN117760544A true CN117760544A (en) | 2024-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311626662.5A Pending CN117760544A (en) | 2023-11-30 | 2023-11-30 | Method for measuring vibration condition of crystallizer vibration device |
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| Country | Link |
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2023
- 2023-11-30 CN CN202311626662.5A patent/CN117760544A/en active Pending
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