CN211402685U - Electromagnetic stirring roller magnetic force size and direction online measurement device - Google Patents
Electromagnetic stirring roller magnetic force size and direction online measurement device Download PDFInfo
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- CN211402685U CN211402685U CN201921808367.0U CN201921808367U CN211402685U CN 211402685 U CN211402685 U CN 211402685U CN 201921808367 U CN201921808367 U CN 201921808367U CN 211402685 U CN211402685 U CN 211402685U
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- 238000003756 stirring Methods 0.000 title claims abstract description 63
- 238000005259 measurement Methods 0.000 title claims abstract description 17
- 239000000523 sample Substances 0.000 claims abstract description 75
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims 1
- 239000003550 marker Substances 0.000 claims 1
- 230000006698 induction Effects 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000012545 processing Methods 0.000 abstract description 3
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 239000000696 magnetic material Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000009749 continuous casting Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
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Abstract
The utility model relates to an electromagnetic stirring roller magnetic force and direction online measuring device, which comprises a supporting seat, a measuring rod, a probe bracket, a probe, a gauss meter and a magnetic direction mark; the number of the supporting seats is at least 2, and the measuring rod is horizontally arranged on the supporting seats; the height of the supporting seat can be adjusted, and the length of the measuring rod can be adjusted; the probe and the magnetic direction mark are arranged at the same end of the measuring rod, and the signal output end of the probe is connected with the gauss meter through a signal line. The utility model discloses can carry out online accurate measurement to the magnetic induction intensity size and the direction of the inside magnetic field each point of electromagnetic stirring roller, be favorable to optimizing the technological parameter of two cold junctions of slab and terminal electromagnetic stirring, improve the effect of electromagnetic stirring, in time, effectual judgement and processing shorten maintenance cycle, reduction in production cost because of the production abnormity and the trouble that the electromagnetic stirring roller produced.
Description
Technical Field
The utility model relates to a steelmaking continuous casting technical field especially relates to an electromagnetic stirring roller magnetic force size and direction on-line measuring device.
Background
The electromagnetic stirring technology (EMS) plays an irreplaceable role in controlling and improving the front molten steel flow of a solid-liquid interface, expanding an equiaxed crystal area, refining grains, improving the surface and internal quality of a casting blank and the like. In order to obtain the best stirring effect, the accurate numerical values of various outputs of electromagnetic stirring in the working state and the magnitude and direction of the electromagnetic force need to be determined, so that the process parameters are optimized to be suitable for different steel grades and obtain the casting blank with the best quality. For the detection of various parameters and electromagnetic force of electromagnetic stirring equipment, few documents are mentioned at home and abroad, and the magnetic induction intensity of electromagnetic stirring under no load is generally measured by a gauss meter during maintenance.
The gaussmeter is a common tool for measuring the magnetic flux of a magnetic object, can be used for measuring a direct current and alternating current magnetic field, is a relatively precise measuring instrument, and is generally used for slightly touching the surface of a measured magnet or the position of a measured space magnetic field by a probe held by an operator and then reading. The electromagnetic stirring rollers are generally adopted for two cold ends and tail ends of slab continuous casting, and in a production site, due to the fact that the space for installing the electromagnetic stirring rollers is long, narrow and small, workers can only measure electromagnetic forces at two ends of the rollers by using a handheld or desk-top gaussmeter, the measurement of the magnetic force magnitude and direction at the center and two sides of the rollers cannot be regarded as the force, and currently, only an offline measurement mode can be adopted, so that the production rhythm is slowed down, and the maintenance cost is increased. Meanwhile, because the Hall piece of the probe part of the gauss meter has high sensitivity to the magnetic field, when the distance and the angle between the probe and a measured point are different, the measurement result can generate great deviation; for the magnetic fields distributed with a plurality of magnetic poles, the magnetic field intensity at each position is different, and the error of the measurement result is relatively large; in addition, when the gaussmeter is used for detection, the influence of human factors is large, different results are often generated when people measure the same magnet by different people, and the inaccuracy of the measurement precision brings great trouble to the measurement work.
Disclosure of Invention
The utility model provides an electromagnetic stirring roller magnetic force size and direction on-line measuring device can carry out online accurate measurement to the magnetic induction intensity size and the direction of electromagnetic stirring roller internal magnetic field each point, is favorable to optimizing the technological parameter of two cold junctions of slab and terminal electromagnetic stirring, improves the effect of electromagnetic stirring, and production that in time, effectual judgement and processing produced because of the electromagnetic stirring roller is unusual and the trouble shortens maintenance cycle, reduction in production cost.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an online measuring device for the magnetic force and the direction of an electromagnetic stirring roller comprises a supporting seat, a measuring rod, a probe bracket, a probe, a gauss meter and a magnetic direction indicator; the number of the supporting seats is at least 2, and the measuring rod is horizontally arranged on the supporting seats; the height of the supporting seat can be adjusted, and the length of the measuring rod can be adjusted; the probe and the magnetic direction mark are arranged at the same end of the measuring rod, and the signal output end of the probe is connected with the gauss meter through a signal line.
The probe bracket is connected with the measuring rod through a fixing pin, and the probe bracket can rotate horizontally to adjust the angle.
The magnetic vane is suspended below the measuring rod through a wire.
The measuring rod is at least composed of 2 sections of rod bodies, the rod bodies are fixedly inserted between the sections of rod bodies, scales are longitudinally arranged on the outer surface of each rod body, and the original points of the scales are arranged at the end parts of the corresponding ends of the rod bodies provided with the probes.
The supporting seat is composed of a base and a supporting rod, the supporting rod is composed of at least 2 sections of rod bodies, all the sections of rod bodies are fixedly inserted, scales are longitudinally arranged on the outer surface of each rod body, and the original point of the scales is the bottom surface of the supporting seat; the top end of the supporting rod is connected with the measuring rod through threads.
The probe bracket is longitudinally provided with scales, and the original point of the scales is the rotation central point of the probe bracket.
The magnetic direction mark is a solid aluminum block or a hollow aluminum block.
The measuring rod, the supporting seat, the probe bracket and the fixing pin are all made of non-magnetic materials.
Compared with the prior art, the beneficial effects of the utility model are that:
1) the online measurement is realized, and the magnitude and the direction of the electromagnetic force of each point of the magnetic field space in the electromagnetic stirring roller can be truly and accurately measured;
2) purposeful and non-repeated point-by-point detection is realized, and the service life of the probe is prolonged;
3) the peak value and the direction of the magnetic flux at each position of the magnetic field in the electromagnetic stirring roller can be measured on line;
4) the technological parameters of electromagnetic stirring at the cold end and the tail end of the second plate blank are optimized, and the electromagnetic stirring effect is improved;
5) the device is beneficial to timely and effectively judging and processing production abnormity and faults generated by the electromagnetic stirring roller, shortens the maintenance period and reduces the production cost;
6) the device has simple structure and convenient operation and maintenance.
Drawings
Fig. 1 is a front view of the device for measuring the magnetic force and direction of the electromagnetic stirring roller on line.
Fig. 2 is a top view of fig. 1.
FIG. 3 is a schematic diagram of the principle of the device for measuring the magnetic force and direction of the electromagnetic stirring roller on line
Fig. 4 is a schematic diagram of a device for measuring the magnetic force and direction of an electromagnetic stirring roller on line according to the present invention.
In the figure: 1. measuring rod 2, supporting seat 3, probe bracket 4, fixing pin 5, magnetic direction mark 6, probe 7, gaussmeter 8, upper electromagnetic stirring roller 9, lower electromagnetic stirring roller
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:
as shown in fig. 1 and 2, the device for measuring the magnetic force and direction of the electromagnetic stirring roller of the present invention comprises a supporting seat 2, a measuring rod 1, a probe bracket 3, a probe 6, a gauss meter 7 and a magnetic vane 5; the number of the supporting seats 2 is at least 2, and the measuring rod 1 is horizontally arranged on the supporting seats 2; the height of the supporting seat 2 can be adjusted, and the length of the measuring rod 1 can be adjusted; the probe 6 and the magnetic direction mark 5 are arranged at the same end of the measuring rod 1, and the signal output end of the probe 6 is connected with the gauss meter 7 through a signal wire.
The probe bracket 3 is connected with the measuring rod 1 through a fixing pin 4, and the probe bracket 3 can rotate horizontally to adjust the angle.
The magnetic vane 5 is suspended below the measuring stick 1 by a wire.
The measuring rod 1 at least comprises 2 sections of rod bodies, the rod bodies are fixedly inserted and connected, scales are longitudinally arranged on the outer surface of each rod body, and the original points of the scales are arranged at the end parts of the corresponding ends of the rod bodies provided with the probes 6.
The supporting seat 2 consists of a base and a supporting rod, the supporting rod at least consists of 2 sections of rod bodies, all the sections of rod bodies are fixedly inserted, scales are longitudinally arranged on the outer surface of each rod body, and the original point of the scales is the bottom surface of the supporting seat; the top end of the supporting rod is connected with the measuring rod 1 through threads.
The probe bracket 3 is longitudinally provided with scales, and the original point of the scales is the rotation central point of the probe bracket 3.
The magnetic direction indicator 5 is a solid aluminum block or a hollow aluminum block.
The measuring rod 1, the supporting seat 2, the probe bracket 3 and the fixing pin 4 are all made of non-magnetic materials.
As shown in fig. 3, the usage of the device for measuring the magnetic force and direction of the electromagnetic stirring roller in an online manner of the present invention is as follows (the online measurement is performed in a non-operating state):
1) the probe 6 is placed into the probe bracket 3 and fixed, the angle between the probe bracket 3 and the measuring rod 1 is adjusted, and then the fixing pin 4 is locked to fix the probe bracket 3 and the measuring rod 1;
2) the length of the measuring rod 1 is adjusted and then locked and fixed, and the height of the supporting seat 2 is adjusted and then locked and fixed; after all the adjustments are finished, the measuring device is placed at the top of the lower electromagnetic stirring roller 9;
3) opening the gaussmeter 7, measuring the magnetic induction intensity of the current point position, and determining the direction of the magnetic field according to the rotating direction of the magnetic beacon 5;
4) the measuring point position is changed by adjusting the length of the measuring rod 1, the height of the supporting seat 2 and the included angle between the probe bracket 3 and the measuring rod 1, and the magnetic induction intensity and the direction of each point position in the magnetic field between the upper electromagnetic stirring roller 8 and the lower electromagnetic stirring roller 9 are measured point by point.
An electromagnetic stirring roller magnetic force size and direction on-line measuring device's theory of operation is: the coordinate position of a certain point in the internal magnetic field between 2 electromagnetic stirring rollers 8 and 9 is assumed to be (X, Y, Z), the corresponding scale behind the fixed position of the measuring rod 1 is the X-axis relative coordinate value, the corresponding scale behind the fixed position of the probe 6 on the probe bracket 3 is the Y-axis relative coordinate value, and the corresponding scale behind the fixed position of the supporting seat 2 is the Z-axis relative coordinate value. Each point position in the magnetic field corresponds to one magnetic induction intensity, and the magnetic flux distribution in the area can be truly reflected by the point-by-point measurement result, so that detailed data are provided for optimizing the technological parameters of electromagnetic stirring, and a huge auxiliary effect is played for improving the effect of the electromagnetic stirring.
The following examples are carried out on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are given, but the scope of the present invention is not limited to the following examples.
[ examples ] A method for producing a compound
In the embodiment, the online measurement of the magnetic force and the magnetic direction of the electromagnetic stirring roller comprises a measuring rod 1, wherein the bottom of the measuring rod is connected with 2 supporting seats 2; the top of one end of the measuring rod 1 is provided with a probe bracket 3; the probe bracket 3 is connected with the measuring rod 1 through a fixing pin 4; the same end of the measuring rod 1 is suspended with a magnetic direction mark 5 through a silk thread.
The cross section of the measuring rod 1 is square, the surface is smooth, scales are arranged along the longitudinal direction, the rod body is 2 sections, the rod body is fixed through insertion, and the length can be adjusted in a telescopic mode; the bottom of measuring stick 1 is equipped with circular slot, establishes the screw hole on the body of rod that corresponds circular slot position.
The bracing piece in the supporting seat 2 also divide into 2 sections body of rods to high scalable regulation, the surface of the body of rod is smooth and is equipped with the scale, and the screw thread is established on the top of bracing piece, and during the fixed circular slot of 1 bottoms of measuring stick is inserted and passes through threaded connection with the bracing piece in the top of bracing piece, and the bottom of bracing piece is equipped with the base.
The section of the probe bracket 3 is semicircular, and one side of the plane of the probe bracket is in contact with the upper surface of the measuring rod 1; the probe bracket 3 is provided with scales. The fixing pin 4 is a cylindrical pin, the probe bracket 3 can be fixed on the measuring rod 1 after locking, and the angle of the probe bracket 3 can be adjusted after the cylindrical pin 4 is loosened.
The magnetic direction indicator 5 is a rectangular hollow aluminum block. The material of the measuring rod 1, the supporting seat 2, the probe bracket 3 and the fixing pin 4 is non-magnetic material.
As shown in fig. 3 and 4, in this embodiment, the measurement device is used to measure the magnitude and direction of magnetic induction intensity of three points, namely, an a point (coordinate value: X is 1000, Y is 90, and Z is 115), a B point (coordinate value: X is 1000, Y is 0, and Z is 115), and a C point (coordinate value: X is 1000, Y is-90, and Z is 115) in the magnetic field space of the second cold-stage electromagnetic stirring roll of the large slab on site. The diameter of the cross section of the upper electromagnetic stirring roller 8 and the diameter of the cross section of the lower electromagnetic stirring roller are both 180mm, the length of the upper electromagnetic stirring roller and the length of the lower electromagnetic stirring roller are both 2000mm, and the distance between the upper electromagnetic stirring roller and the lower electromagnetic stirring roller is 230 mm.
In this embodiment, the length adjustment range of the measuring rod is as follows: 600-1200 mm; height adjustment scope of supporting seat: 60-120 mm; the length of the probe carrier is 200 mm.
In this embodiment, the online measurement method for the magnetic force and direction of the electromagnetic stirring roller specifically includes:
measuring the magnitude and direction of the electromagnetic force of the point A: firstly, a probe 6 is placed in a probe bracket 3, the top end of the probe 6 is aligned with a 90mm scale position on the probe bracket 3 and then fixed, then when the probe bracket 3 rotates 90 degrees anticlockwise and forms a right angle with a measuring rod 1, a fixing pin 4 is locked, the length of the measuring rod 1 is adjusted to 1100mm, the supporting seat 2 is scheduled to be adjusted to 100mm and then is locked and installed on the measuring rod 1, finally, the whole measuring device is placed on the upper surface of a lower electromagnetic stirring roller 9, the tail part of the measuring rod 1 is aligned with the left end (in the direction shown in the figure) of the lower electromagnetic stirring roller 9, the point is a measuring original point, a gaussmeter 7 is opened to measure the magnetic induction intensity of a point where the probe 6 is located, and then the rotating direction of a magnetic direction mark 5 is observed to determine the direction of a magnetic field;
b, measuring the size and the direction of the electromagnetic force of the point position: firstly, placing a probe 6 into a probe bracket 3, leveling the top end of the probe and then fixing the probe, then adjusting the probe bracket 3 to form an angle of 0 degree with a measuring rod 1, locking a fixing pin 4, adjusting the length of the measuring rod 1 to 1000mm, locking the position, adjusting the height of a supporting seat 2 to 100mm, locking the position and then installing the position on the measuring rod 1, finally placing the whole measuring device on the upper surface of a lower electromagnetic stirring roller 9, aligning the tail part of the measuring rod 1 with the left end (the direction shown in the figure) of the lower electromagnetic stirring roller 9, wherein the point is a measuring original point, opening a gaussmeter 7 to measure the magnetic induction intensity of the point of the probe 6, and observing the rotating direction of a magnetic beacon 5 to determine the direction of a magnetic field;
c, measuring the size and the direction of the electromagnetic force of the point C: firstly, a probe 6 is placed in a probe bracket 3, the top end of the probe 6 is leveled with a 90mm scale position on the probe bracket 3 and then fixed well, then the probe bracket 3 is rotated clockwise by 90 degrees until the probe bracket and the measuring rod 1 form a right angle, a fixing pin 4 is locked, the length of the measuring rod 1 is adjusted to be locked at the position of 1100mm, the supporting seat 2 is installed on the measuring rod 1 after being locked at the position of 100mm, finally, the whole measuring device is placed on the upper surface of a lower electromagnetic stirring roller 9, the tail part of the measuring rod 1 is aligned with the left end (the direction shown in the figure) of the lower electromagnetic stirring roller, the point is a measuring original point, a gaussmeter 7 is opened to measure the magnetic induction intensity of the point of the probe 6, and then the rotating direction of a magnetic direction mark 5 is observed to determine the direction.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (8)
1. The device for measuring the magnetic force and the magnetic direction of the electromagnetic stirring roller on line is characterized by comprising a supporting seat, a measuring rod, a probe bracket, a probe, a gaussmeter and a magnetic direction marker; the number of the supporting seats is at least 2, and the measuring rod is horizontally arranged on the supporting seats; the height of the supporting seat can be adjusted, and the length of the measuring rod can be adjusted; the probe and the magnetic direction mark are arranged at the same end of the measuring rod, and the signal output end of the probe is connected with the gauss meter through a signal line.
2. The on-line measuring device for the magnetic force and the direction of the electromagnetic stirring roller as claimed in claim 1, wherein the probe bracket is connected with the measuring rod through a fixing pin, and the probe bracket can horizontally rotate to adjust the angle.
3. The on-line measuring device for the magnetic force and the direction of the electromagnetic stirring roller as claimed in claim 1, wherein the magnetic vane is suspended below the measuring rod through a wire.
4. The device for on-line measurement of the magnetic force and direction of the electromagnetic stirring roller as claimed in claim 1, wherein the measuring rod is composed of at least 2 sections of rod bodies, each section of rod body is fixedly inserted, the outer surface of the rod body is provided with scales along the longitudinal direction, and the origin of the scales is arranged at the end part of the rod body corresponding to the probe.
5. The device for on-line measurement of the magnetic force and direction of the electromagnetic stirring roller as claimed in claim 1, wherein the supporting base is composed of a base and a supporting rod, the supporting rod is composed of at least 2 sections of rods, each section of rod is inserted and fixed, the outer surface of the rod is provided with scales along the longitudinal direction, and the origin of the scales is the bottom surface of the supporting base; the top end of the supporting rod is connected with the measuring rod through threads.
6. The on-line measuring device for the magnetic force and the direction of the electromagnetic stirring roller as claimed in claim 1 or 2, wherein the probe bracket is provided with scales along the longitudinal direction, and the origin of the scales is the rotation center point of the probe bracket.
7. The on-line measuring device for the magnetic force and the direction of the electromagnetic stirring roller as claimed in claim 1 or 3, wherein the magnetic direction mark is a solid aluminum block or a hollow aluminum block.
8. The on-line measuring device for the magnetic force and direction of the electromagnetic stirring roller as claimed in claim 1, wherein the measuring rod, the supporting base, the probe bracket and the fixing pin are made of non-magnetic conductive material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921808367.0U CN211402685U (en) | 2019-10-25 | 2019-10-25 | Electromagnetic stirring roller magnetic force size and direction online measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921808367.0U CN211402685U (en) | 2019-10-25 | 2019-10-25 | Electromagnetic stirring roller magnetic force size and direction online measurement device |
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| Publication Number | Publication Date |
|---|---|
| CN211402685U true CN211402685U (en) | 2020-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921808367.0U Active CN211402685U (en) | 2019-10-25 | 2019-10-25 | Electromagnetic stirring roller magnetic force size and direction online measurement device |
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| Country | Link |
|---|---|
| CN (1) | CN211402685U (en) |
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2019
- 2019-10-25 CN CN201921808367.0U patent/CN211402685U/en active Active
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