Convenient auxiliary positioning device for measuring magnetic induction intensity of roller type electromagnetic stirring

Abstract

The invention provides a convenient roller type electromagnetic stirring magnetic induction intensity measurement auxiliary positioning device, and belongs to the technical field of ferrous metallurgy smelting, the convenient roller type electromagnetic stirring magnetic induction intensity measurement auxiliary positioning device comprises a splicing pipe, an adjustable porous rack and a gauss meter probe, the adjustable porous rack is provided with through holes, the splicing pipe is clamped between the through holes of the adjustable porous rack, and the gauss meter probe is clamped between the splicing pipe and the adjustable porous rack. The splicing pipe can rotate in the through hole of the adjustable porous rack in a barrier-free manner, and the gauss meter probe penetrates through the splicing pipe and is fixed at one end of the splicing pipe. By adopting the convenient auxiliary positioning device for measuring the magnetic induction intensity of the roller type electromagnetic stirring, the problems of inaccurate positioning, poor universality, limited application environment, incapability of flexible adjustment, large personal error and difficulty in measuring an electromagnetic field in a limited space in the prior art are solved.

Description

Technical Field

[0001] This invention relates to the field of iron and steel metallurgy smelting technology, and in particular to a convenient roller-type electromagnetic stirring magnetic induction intensity measurement and positioning device. Background Technology

[0002] In the continuous casting process of slabs in iron and steel metallurgy, the flow and solidification state of the internal molten steel have a crucial impact on the quality of the final product. Electromagnetic stirring technology, as an effective method, can significantly improve the quality of continuously cast slabs by altering the flow and heat transfer characteristics of the molten steel inside. In recent years, as my country's steel industry has shifted from high output to high quality, how to further improve the quality of continuously cast slabs has become a focus of industry attention. Among these improvements, the metallurgical techniques for the secondary cooling zone in slab continuous casting play an irreplaceable role in enhancing slab quality.

[0003] To achieve this goal, it is crucial to determine the magnitude and direction of the magnetic induction intensity generated by the roller electromagnetic stirrer at the position of the continuously cast billet under different current parameters. This not only helps optimize the production process but also achieves the optimal matching of steel grade and process parameters, thereby improving overall production efficiency and product quality. In practice, measuring the magnetic field of the roller electromagnetic stirrer faces numerous challenges. Especially when there is no production plan, using a gaussmeter to measure the magnetic induction intensity under no-load conditions presents significant errors due to the typically confined and dark / humid operating space at the roller electromagnetic stirrer measurement site. Manual operation alone is insufficient for precise positioning at specific locations, leading to substantial measurement errors.

[0004] The invention patent "CN211402685U An Online Measurement Device for the Magnetic Force Magnetic Force and Direction of an Electromagnetic Stirring Roller" has poor versatility and is difficult to widely apply across different continuous casting machines because the distance between the two electromagnetic stirring rollers in a continuous casting machine is determined by the billet thickness, and the billet thickness may vary between different continuous casting machines. The invention patent "CN109782199A An Auxiliary Device and Method for Measuring Magnetic Induction Intensity in the Crystallizer Area" has a relatively large measurement space and is easy to measure in this area, but its design is not suitable for the confined space of the secondary cooling zone in slab continuous casting.

[0005] Therefore, in order to address the above problems, it is particularly important to develop a convenient, easy-to-process, portable, and highly applicable roller-type electromagnetic stirring magnetic induction intensity measurement auxiliary positioning device. Summary of the Invention

[0006] The purpose of this invention is to provide a convenient roller-type electromagnetic stirring magnetic induction intensity measurement auxiliary positioning device, which solves the problems of inaccurate positioning, poor versatility, limited applicable environment, inflexible adjustment, large human error, and difficulty in measuring electromagnetic fields in limited spaces in the existing technology.

[0007] To achieve the above objectives, the present invention provides a convenient roller-type electromagnetic stirring magnetic induction intensity measurement auxiliary positioning device, including a splicing pipe, an adjustable multi-hole platform, and a gaussmeter probe. The adjustable multi-hole platform is provided with through holes, and the splicing pipe is snapped between the through holes of the adjustable multi-hole platform. The splicing pipe can rotate freely in the through holes of the adjustable multi-hole platform. The gaussmeter probe passes through the inside of the splicing pipe and is fixed to one end of the splicing pipe.

[0008] Preferably, the splicing pipe includes a PVC pipe and a connecting sleeve. The PVC pipe has connecting holes at both ends. The connecting sleeve is fitted onto the end of an adjacent PVC pipe. The connecting sleeve has sleeve connecting holes corresponding to the connecting holes. The connecting sleeve is connected to the PVC pipe by screws.

[0009] Preferably, the adjustable perforated frame includes two plastic fences, a wooden board, and a base. The two plastic fences are parallel to each other, the wooden board is fixed to the upper and lower ends of the two plastic fences, and the base is located below the two plastic fences.

[0010] Preferably, one end of the base is a rotating shaft, the other end of the base is a lifting nut, and the bottom of the two plastic fences is provided with a connecting shaft, one end of the connecting shaft is connected to the rotating shaft, and the other end of the connecting shaft is connected to the lifting nut.

[0011] Preferably, the outer surface of the splicing pipe is marked with graduations starting from the fixed end of the gaussmeter probe.

[0012] Preferably, the relative magnetic permeability of the PVC pipe, connecting sleeve, two plastic fences, wooden board, and base is all 1.

[0013] Therefore, the present invention employs the above-mentioned convenient roller-type electromagnetic stirring magnetic induction intensity measurement auxiliary positioning device, and the technical effects are as follows: 1. Improve measurement accuracy: This auxiliary positioning device enables precise positioning of the gaussmeter probe between the two electromagnetic stirring rollers, thereby accurately measuring the magnetic induction intensity between the two rollers and reflecting the magnetic induction intensity distribution at different positions of the two electromagnetic stirring rollers. This minimizes human error and improves the accuracy of magnetic field measurement results.

[0014] 2. Enhanced applicability: Applicable to the measurement of the magnetic field of the roller electromagnetic stirring in the secondary cooling zone of slab continuous casting under various conditions, and can be adapted to various situations such as different continuous casting machines and different installation positions of stirring rollers on the same continuous casting machine.

[0015] 3. Simplified operation process: The device is easy to manufacture, portable, and simple to use, making it convenient to operate in a limited space, thus reducing the complexity and difficulty of measurement work.

[0016] 4. Adaptable to complex environments: The device can be used in the confined, dark and humid secondary cooling area of ​​slab continuous casting, which solves the limitations of traditional measurement methods in these complex environments. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the magnetic field measurement of the auxiliary positioning device of the present invention; Figure 2 This is a schematic diagram of the splicing structure of the splicing pipe of the present invention; Figure 3 This is a schematic diagram of the adjustable multi-hole frame structure of the present invention.

[0018] Figure Labels 1. Electromagnetic stirring roller; 2. PVC pipe; 3. Connecting sleeve; 4. Wooden board; 5. Plastic fence; 6. Base; 7. Gaussmeter; 8. Gaussmeter probe. Detailed Implementation

[0019] The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains.

[0021] Example 1 like Figure 1 As shown, this invention provides a convenient auxiliary positioning device for measuring the magnetic induction intensity of a roller-type electromagnetic stirring roller, including a splicing pipe, an adjustable multi-hole stand, and a gaussmeter probe 8. It can measure the magnetic induction intensity at various positions between two electromagnetic stirring rollers 1, and is adaptable to various continuous casting machines and stirring rollers with various arrangement positions, providing significant assistance in the measurement of magnetic induction intensity.

[0022] like Figure 2 As shown, the splicing pipe consists of three rigid PVC pipe sections 2, two connecting sleeves 3, and four screws. Connecting holes are provided at both ends of the PVC pipe 2. The connecting sleeves 3 are fitted onto the ends of adjacent PVC pipes 2 and connected to the PVC pipes 2 by screws. The outer surface of the splicing pipe is graduated, starting from the fixed end of the gaussmeter probe 8, to facilitate the measurement of magnetic induction intensity at different locations.

[0023] like Figure 3 As shown, the adjustable perforated platform consists of two plastic railings 5, two wooden boards 4, and a base 6. The two plastic railings 5 ​​are parallel to each other, the wooden boards 4 are fixed to the upper and lower ends of the two plastic railings 5, and the base 6 is located below the two plastic railings 5. One end of the base 6 is a rotating shaft, and the other end is a lifting nut, used to adjust the angle between the platform and the ground.

[0024] The gaussmeter probe 8 runs through the inside of the splicing pipe and is fixed to one end of the pipe. The magnetic field signal is input to the gaussmeter 7 through the signal line inside the pipe for real-time display and recording.

[0025] In constructing the convenient roller-type electromagnetic stirring magnetic induction intensity measurement auxiliary positioning device, key components such as PVC pipe 2, connecting sleeve 3, two plastic fences 5, wooden board 4, base 6, screws, and lifting nut were selected. These components share the common characteristic that their relative magnetic permeability is 1. Under constant temperature operating conditions, the magnetism of these materials remains stable and does not change, thus ensuring that they do not interfere with the measurement results during magnetic field measurement, guaranteeing the accuracy and reliability of the measurement.

[0026] The method of using the convenient roller-type electromagnetic stirring magnetic induction intensity measurement auxiliary positioning device of the present invention is as follows: (1) Carefully insert the gaussmeter probe 8 into one end of the PVC pipe 2 and ensure that it is firmly fixed to that end of the splicing pipe in order to carry out subsequent magnetic field measurement work.

[0027] (2) Place the adjustable multi-hole stand properly in the measurement area, and adjust the angle of the plastic fence 5 precisely according to the actual angle between the two electromagnetic stirring rollers 1 and the horizontal ground so that it is consistent with the arrangement direction of the stirring rollers. This ensures that when the PVC pipe 2 is inserted into the adjustable multi-hole stand, it can maintain a strict parallel state with the two electromagnetic stirring rollers 1, thereby ensuring the accuracy of the measurement.

[0028] (3) Turn on the gaussmeter 7 and zero its reading to eliminate any initial error. Slowly insert the splicing pipe with the fixed gaussmeter probe 8 into the adjustable perforated platform. Since there is a certain angle between the adjustable perforated platform and the horizontal ground, the splicing pipe will stably fall on the right-angled "V" shaped support formed by the holes of the two plastic fences 5 under the natural action of gravity. At this time, by inserting it into different holes, the magnetic induction intensity at different distances from the electromagnetic stirring roller 1 can be accurately measured.

[0029] (4) According to the pre-set scale on the splicing pipe, gradually insert the gaussmeter probe 8 to measure the magnetic induction intensity at different locations; if it is found that the length of the PVC pipe 2 is insufficient to reach the specific location to be measured, the connecting sleeve 3 can be used to flexibly connect two or three sections of PVC pipe 2 together, thereby increasing the overall length of the splicing pipe to meet the requirement of measuring the magnetic induction intensity at a distance from the starting point.

[0030] Example 2 This invention provides a convenient auxiliary positioning device for measuring the magnetic induction intensity of a roller-type electromagnetic stirrer, comprising a PVC pipe 2, a connecting sleeve 3, a wooden board 4, plastic fences 5, and a base 6. During assembly, two identical wooden boards 4 are first installed at both ends of two plastic fences 5 to precisely fix and adjust the spacing between them. Then, the assembled adjustable multi-hole platform is securely installed onto the adjustable base 6. The base 6 consists of a rotating shaft and a lifting nut; by adjusting the nut, the angle of the platform can be easily fine-tuned to ensure it matches the actual application scenario.

[0031] Considering that the continuous casting machine is an enclosed space with extremely limited operating area, especially the exceptionally narrow gap between the electromagnetic stirring roller and its sidewall, it would be difficult to pass through smoothly using a single, excessively long PVC pipe. Therefore, this device employs a modular design, allowing the pipe's dimensions to be flexibly adjusted according to the actual space and measurement requirements, thus greatly improving the device's applicability and flexibility.

[0032] During the measurement preparation phase, the gaussmeter probe 8 is securely fixed to one end of the PVC pipe 2. Simultaneously, the outer side of each section of the PVC pipe 2 is precisely marked with graduations at regular intervals to ensure accurate data recording and reading during the measurement process. The signal line passes through the inside of the PVC pipe 2 and connects to the gaussmeter 7, ensuring that the magnetic field signal is transmitted to the measuring equipment in real time and accurately. Before starting the measurement, the reading of the gaussmeter 7 must be zeroed to eliminate any initial errors.

[0033] At the measurement site, an adjustable multi-hole platform is placed on one side of the two electromagnetic stirring rollers 1. By finely adjusting the nuts, the angle of the adjustable multi-hole platform is made perfectly parallel to the arrangement direction of the two electromagnetic stirring rollers 1. Then, according to the measurement requirements, the splicing pipe equipped with the gaussmeter probe 8 is inserted into different holes. At this point, the opposing rectangular holes of the two plastic fence 5 splicing platforms cleverly form two right-angled "V"-shaped supports, ensuring that the splicing pipe remains strictly parallel to the electromagnetic stirring rollers 1, thereby guaranteeing the accuracy and reliability of the measurement.

[0034] All the materials used above are non-magnetic, that is, materials with a relative permeability of 1, to ensure that they will not cause any interference or influence on the magnetic field during the measurement process.

[0035] In the process of measuring the magnetic induction intensity of the electromagnetic stirring roller 1, an adjustable multi-hole platform is first arranged on one side of the electromagnetic stirring roller 1. Then, according to the actual arrangement direction of the electromagnetic stirring roller 1, the base 6 is finely adjusted so that the angle between the plastic fence 5 and the ground remains consistent. In this embodiment, the center distance between the two electromagnetic stirring rollers 1 (excluding the roller diameter) is 330 mm, and the spacing between the holes in the plastic fence 5 is set to 50 mm. Therefore, through the five rectangular holes, accurate measurement of the magnetic induction intensity within a range of 250 mm can be achieved. The bottom hole is closer to the lower electromagnetic stirring roller 1, the top hole is closer to the upper electromagnetic stirring roller 1, and the center hole is precisely located on the center line of the two stirring rollers.

[0036] During the measurement process, the splicing pipe is slowly and manually inserted, and the magnetic induction intensity is measured at each marked point according to the scale on the outside of the PVC pipe 2. When it is necessary to measure the magnetic induction intensity at a distant location, a section of PVC pipe 2 can be spliced ​​at any time to meet the needs of long-distance measurement. This method ensures the comprehensiveness and accuracy of the measurement data, providing strong support for subsequent process optimization and parameter adjustment.

[0037] Therefore, this invention employs the aforementioned convenient roller-type electromagnetic stirring magnetic induction intensity measurement auxiliary positioning device, which achieves precise positioning of the gaussmeter probe between the two electromagnetic stirring rollers, accurately measuring the magnitude of the magnetic induction intensity between the two rollers and reflecting the magnetic induction intensity distribution at different positions of the two electromagnetic stirring rollers. This device features low processing difficulty, portability, and ease of use, and is suitable for measuring the magnetic field of roller-type electromagnetic stirring in the secondary cooling zone of slab continuous casting under various conditions. It improves the accuracy of magnetic field measurement results and provides strong support for optimizing production processes and achieving optimal matching between steel grades and process parameters.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A portable roll-type electromagnetic stirring magnetic induction strength measurement auxiliary positioning device, characterized by, The utility model relates to a gauss meter probe fixing device, including spliced pipe, adjustable perforated rack, gauss meter probe, be provided with through -hole on adjustable perforated rack, the spliced pipe is clamped between the through -hole of adjustable perforated rack, the spliced pipe is without barrier rotation in the through -hole of adjustable perforated rack, the gauss meter probe is penetrated in the inside spliced pipe, the gauss meter probe is fixed in the one end of spliced pipe.

2. A convenient roll type electromagnetic stirring magnetic induction strength measurement auxiliary positioning device according to claim 1, characterized in that, The spliced pipe includes a PVC pipe and a connecting sleeve, the PVC pipe is provided with connecting holes at both ends, the connecting sleeve is sleeved on the end of adjacent PVC pipes, the connecting sleeve is provided with sleeve connecting holes corresponding to the connecting holes, and the connecting sleeve is connected with the PVC pipe through screws.

3. A convenient roll-type electromagnetic stirring magnetic induction strength measurement auxiliary positioning device according to claim 2, characterized in that, The adjustable perforated rack includes two plastic fences, a wooden board and a base, the two plastic fences are parallel to each other, the wooden board is fixed at the upper and lower ends of the two plastic fences, and the base is arranged below the two plastic fences.

4. A convenient roll-type electromagnetic stirring magnetic induction strength measurement auxiliary positioning device according to claim 3, characterized in that, One end of the base is a rotating shaft, the other end of the base is a lifting nut, the two plastic fences are provided with connecting shafts at the bottom, one end of the connecting shaft is connected with the rotating shaft, and the other end of the connecting shaft is connected with the lifting nut.

5. A convenient roll type electromagnetic stirring magnetic induction strength measurement auxiliary positioning device according to claim 1, characterized in that, The outer surface of the spliced pipe is provided with a scale starting from the fixed end of the gauss meter probe.

6. A convenient roll-type electromagnetic stirring magnetic induction strength measurement auxiliary positioning device according to claim 3, characterized in that, The relative permeability of the PVC pipe, the connecting sleeve, the two plastic fences, the wooden board and the base is 1.

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