Centering auxiliary device for continuous casting submersed nozzle
Through infrared positioning and laser ranging technology, the problem of large centering error of continuous casting immersion nozzles was solved, accurate nozzle centering was achieved, and the quality of the casting was improved.
Patent Information
- Application Number
- CN202422407766.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-09-30
AI Technical Summary
In the existing technology, the centering of the continuous casting submerged nozzle mainly relies on manual observation and experience judgment, resulting in large accuracy errors. Especially in the production of small-section billets, it is difficult to accurately judge the centering position of the nozzle, which affects the quality of the billets.
Adopting infrared positioning and laser ranging technology, the nozzle offset is detected by infrared transmitter and receiver, and the nozzle offset is measured by laser rangefinder, which provides correction direction and achieves precise alignment.
The accuracy and efficiency of the submerged nozzle alignment are improved, the occurrence of billet defects is reduced, and the quality of the billet is ensured.
Smart Images
Figure CN223368207U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of continuous casting machine equipment, and in particular to a continuous casting submerged nozzle centering auxiliary device. Background Art
[0002] The continuous casting submerged nozzle is a key component connecting the tundish and the crystallizer. The centering accuracy of the continuous casting submerged nozzle directly affects the surface quality of the billet. If the centering deviation of the submerged nozzle is large or the actual centering position does not meet the requirements of the continuous casting process, the produced continuous casting billet will have defects such as cracks. At present, whether the submerged nozzle is aligned at the continuous casting production site is generally observed by the naked eye and judged based on manual experience. However, the above-mentioned continuous casting submerged nozzle centering method is prone to errors. During pouring, the centering of the submerged nozzle is judged by manual observation and experience, and the centering adjustment is performed when deviation occurs. The accuracy error is relatively large, especially when casting small-section billets. The radial distance between the upper mouth of the crystallizer and the submerged nozzle is large, which makes it inconvenient to visually check whether the nozzle centering position is appropriate. At the same time, the accuracy of the submerged nozzle cannot be determined by visual inspection and manual experience. Utility Model Content
[0003] The utility model provides a continuous casting submerged nozzle centering auxiliary device to overcome the shortcomings of the existing technology. Through infrared positioning and laser ranging technology, it can accurately determine whether the submerged nozzle is centered, and at the same time show the operator the specific correction direction when it is not centered.
[0004] According to the utility model, a continuous casting submerged nozzle centering auxiliary device is proposed, which includes a first infrared transmitter, a laser rangefinder, a second infrared transmitter, a first measurement positioning point, a first infrared receiver, a second infrared receiver, a distance measuring point, a second measurement positioning point, a submerged nozzle, a tundish, a crystallizer panel, a crystallizer upper mouth, an inner arc side and an outer arc side; the crystallizer panel is provided with a crystallizer upper mouth, the two sides of the crystallizer panel are respectively an inner arc side and an outer arc side, the tundish and the crystallizer panel are arranged opposite to each other, one end of the submerged nozzle is connected to the crystallizer upper mouth The nozzle is aligned with the center, and the other end of the submerged nozzle is connected to the tundish; the first measuring positioning point and the second measuring positioning point are respectively located at the two ends of the cross section of the submerged nozzle, the first infrared transmitter, the first measuring positioning point and the first infrared receiver are on the same straight line, and the second infrared transmitter, the second measuring positioning point and the second infrared receiver are on the same straight line; the laser rangefinder is arranged between the first infrared transmitter and the second infrared transmitter, and the end point position of the laser ranging is the ranging point, and the end point position is the midline point of the laser rangefinder facing the submerged nozzle.
[0005] In one embodiment, the first infrared transmitter, the second infrared transmitter, the first infrared receiver, the second infrared receiver and the laser rangefinder are all movable.
[0006] In one embodiment, the first infrared transmitter, the second infrared transmitter, and the laser rangefinder are installed on the inner arc side edge of the crystallizer panel, and the first infrared receiver and the second infrared receiver are installed on the outer arc side edge of the crystallizer panel.
[0007] In one embodiment, the first infrared transmitter, the second infrared transmitter, and the laser rangefinder are installed on the outer arc side edge of the crystallizer panel, and the first infrared receiver and the second infrared receiver are installed on the inner arc side edge of the crystallizer panel.
[0008] In one embodiment, the direction in which the first infrared emitter and the second infrared emitter emit infrared rays is parallel to the direction in which the laser rangefinder emits laser rays and is in the same horizontal plane.
[0009] In one embodiment, a plurality of submerged nozzles are provided between the tundish and the crystallizer face plate.
[0010] Compared with the prior art, the utility model has the following beneficial effects: by setting two groups of infrared transmitters, two groups of infrared receivers and a laser rangefinder, and detecting whether the two infrared receivers receive the infrared rays emitted by the infrared transmitters, it is determined whether the submerged nozzle has left-right deviation; when there is no left-right deviation, the measurement value of the laser rangefinder can be used to determine whether the submerged nozzle has inner arc side deviation or outer arc side deviation, so that the operator can determine whether the submerged nozzle is centered without visual inspection, and complete the correction centering at the same time. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0012] Figure 2 It is a transverse cross-sectional view of the overall structure of the utility model.
[0013] Figure 3 This is a flow chart of the control program of the present utility model.
[0014] In the figure: 1. First infrared transmitter; 2. Laser rangefinder; 3. Second infrared transmitter; 4. First measurement positioning point; 5. First infrared receiver; 6. Second infrared receiver; 7. Distance measurement point; 8. Second measurement positioning point; 9. Submerged nozzle; 10. Tundish; 11. Crystallizer faceplate; 12. Crystallizer top; 13. Inner arc side; 14. Outer arc side. DETAILED DESCRIPTION
[0015] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.
[0016] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.
[0017] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.
[0018] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.
[0019] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.
[0020] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only embodiment.
[0021] See Figure 1 , Figure 1 A schematic diagram of the overall structure of a continuous casting submerged nozzle centering auxiliary device in one embodiment of the present application is shown. A continuous casting submerged nozzle centering auxiliary device provided in one embodiment of the present application includes a first infrared transmitter 1, a laser rangefinder 2, a second infrared transmitter 3, a first measurement positioning point 4, a first infrared receiver 5, a second infrared receiver 6, a ranging point 7, a second measurement positioning point 8, an submerged nozzle 9, a tundish 10, a crystallizer face plate 11, a crystallizer upper mouth 12, an inner arc side 13 and an outer arc side 14. A crystallizer upper mouth 12 is provided on the crystallizer panel 11, and the two sides of the crystallizer panel 11 are an inner arc side 13 and an outer arc side 14 respectively. The ladle 10 is arranged opposite to the crystallizer panel 11, one end of the submerged water nozzle 9 is aligned with the crystallizer upper mouth 12, and the other end of the submerged water nozzle 9 is connected to the ladle 10; the first measurement positioning point 4 and the second measurement positioning point 8 are respectively located at the two ends of the cross section of the submerged water nozzle 9, the first infrared transmitter 1, the first measurement positioning point 4 and the first infrared receiver 5 are on the same straight line, and the second infrared transmitter 3, the second measurement positioning point 8 and the second infrared receiver 6 are on the same straight line; the laser rangefinder 2 is arranged between the first infrared transmitter 1 and the second infrared transmitter 3, and the end point position of the laser ranging is the ranging point 7, and the end point position is the midline point of the laser rangefinder facing the submerged water nozzle.
[0022] Combine Figure 2 As shown, Figure 2A transverse cross-sectional view of the overall structure of a continuous casting submerged nozzle centering auxiliary device in one embodiment of the present application is shown. In this embodiment, the first infrared transmitter 1, the second infrared transmitter 3, the first infrared receiver 5, the second infrared receiver 6, and the laser rangefinder 2 can all be movable.
[0023] In this embodiment, the first infrared transmitter 1, the second infrared transmitter 3, and the laser rangefinder 2 are installed on the edge of the inner arc side 13 of the crystallizer panel 11, and the first infrared receiver 5 and the second infrared receiver 6 are installed on the edge of the outer arc side 14 of the crystallizer panel 11.
[0024] In this embodiment, the direction in which the first infrared emitter 1 and the second infrared emitter 3 emit infrared rays is parallel to the direction in which the laser rangefinder 2 emits laser light and is in the same horizontal plane.
[0025] In this embodiment, a plurality of submerged nozzles 9 are provided between the tundish 10 and the crystallizer face plate 11 .
[0026] Combine Figure 3 As shown, Figure 3 A control program flow chart of a continuous casting submerged nozzle centering auxiliary device in one embodiment of the present application is shown. When the utility model is in operation, the submerged nozzle 9 is first adjusted to the centering position of the upper mouth 12 of the crystallizer, and the positions of the left and right first infrared transmitters 1 and the second infrared transmitters 3 are respectively calibrated on the edges of the inner arc side 13 of the crystallizer panel 11 of each casting strand, and the positions of the left and right first infrared receivers 5 and the second infrared receivers 6 are respectively calibrated on the edges of the outer arc side 14 of the crystallizer panel 11 of each casting strand, and the first measurement positioning point 4 and the second measurement positioning point 8 are respectively formed on the left and right sides of the submerged nozzle.
[0027] According to the centering position of the submerged nozzle 9 at the upper mouth 12 of the crystallizer, the position of the laser rangefinder 2 is calibrated between the first infrared emitter 1 and the second infrared emitter 3 of each casting strand, and the end point position of the laser ranging is exactly opposite to the center line point of the submerged nozzle 9, that is, the ranging point 7.
[0028] When the submerged water outlet 9 deviates to the left or right, the submerged water outlet 9 will block the infrared signal emitted by the first infrared transmitter 1 or the second infrared transmitter 3 at the position of the first measurement positioning point 4 or the second measurement positioning point 8, and the first infrared receiver 5 or the second infrared receiver 6 will not be able to receive the signal from the transmitter, and it is determined that the submerged water outlet 9 is deviated to the left or right and is not centered. An alarm signal is issued to remind on-site personnel to adjust the submerged water outlet 9. It is only necessary to correct the submerged water outlet 9 in the opposite direction of the blocked measurement positioning point so that the first infrared receiver 5 or the second infrared receiver 6 can receive the signal at the same time, and it is determined that the centering correction of the submerged water outlet 9 is completed.
[0029] When the submerged water nozzle 9 does not deviate to the left or right, the laser distance measurement is calibrated to a fixed value. When the submerged water nozzle 9 deviates to the inner arc side or the outer arc side, the measurement value of the laser rangefinder 2 will increase or decrease. The error value is set according to the cross-section of the ingot. For example, the error value is set to 5mm. When the distance measurement value increases by more than 5mm or decreases by more than 5mm, it is determined that the submerged water nozzle 9 deviates to the outer arc side or deviates to the inner arc side and is not centered. An alarm signal is issued to remind on-site personnel to adjust the submerged water nozzle 9. It is only necessary to correct the submerged water nozzle 9 in the opposite direction of the inner arc side or the outer arc side of the distance measurement value deviation alarm, and ensure that the first infrared receiver 5 or the second infrared receiver 6 can receive the signal at the same time, and it is determined that the centering correction of the submerged water nozzle 9 is completed.
[0030] The system communicates with the continuous casting machine control system, connects the collected data to the platform operation screen, automatically determines through the control system, feeds back alarms on the operation screen, and gives sound and light alarms on site, assisting on-site personnel to make timely and precise adjustments to the 9-way centering of the submerged nozzle.
[0031] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0032] The above embodiment merely represents one embodiment of the present application, and while the description is relatively specific and detailed, it should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be subject to the appended claims.
Claims
1. A continuous casting submerged nozzle centering auxiliary device, characterized in that: The crystallizer comprises a first infrared transmitter, a laser rangefinder, a second infrared transmitter, a first measurement positioning point, a first infrared receiver, a second infrared receiver, a distance measuring point, a second measurement positioning point, an immersion nozzle, a tundish, a crystallizer panel, a crystallizer upper opening, an inner arc side and an outer arc side; the crystallizer upper opening is provided on the crystallizer panel, the inner arc side and the outer arc side are respectively provided on both sides of the crystallizer panel, the tundish is arranged opposite to the crystallizer panel, one end of the immersion nozzle is aligned with the crystallizer upper opening, and the other end of the immersion nozzle is aligned with the middle arc side. The first measuring positioning point and the second measuring positioning point are respectively located at the two ends of the cross section of the submerged water outlet, the first infrared transmitter, the first measuring positioning point and the first infrared receiver are on the same straight line, and the second infrared transmitter, the second measuring positioning point and the second infrared receiver are on the same straight line; the laser rangefinder is arranged between the first infrared transmitter and the second infrared transmitter, the end point position of the laser ranging is the ranging point, and the end point position is the midline point of the laser rangefinder facing the submerged water outlet.
2. The continuous casting submerged nozzle centering auxiliary device according to claim 1, characterized in that: The first infrared transmitter, the second infrared transmitter, the first infrared receiver, the second infrared receiver and the laser rangefinder are all movable.
3. The continuous casting submerged nozzle centering auxiliary device according to claim 1, characterized in that: The first infrared transmitter, the second infrared transmitter, and the laser rangefinder are installed on the inner arc side edge of the crystallizer panel, and the first infrared receiver and the second infrared receiver are installed on the outer arc side edge of the crystallizer panel.
4. The continuous casting submerged nozzle centering auxiliary device according to claim 1, characterized in that: The first infrared transmitter, the second infrared transmitter, and the laser rangefinder are installed on the outer arc side edge of the crystallizer panel, and the first infrared receiver and the second infrared receiver are installed on the inner arc side edge of the crystallizer panel.
5. The continuous casting submerged nozzle centering auxiliary device according to claim 1, characterized in that: The directions in which the first infrared emitter and the second infrared emitter emit infrared rays are parallel to the direction in which the laser rangefinder emits laser rays and are in the same horizontal plane.
6. The continuous casting submerged nozzle centering auxiliary device according to claim 1, characterized in that: A plurality of submerged water inlets are provided between the tundish and the crystallizer face plate.