Slag layer thickness measuring device suitable for tundish
By designing an automated intermediate enclave layer thickness measurement device, using guide columns, lifting cylinders and argon arc welding wire, the accuracy and safety of manual measurements are solved, and efficient and accurate measurement of slag layer thickness is achieved.
Patent Information
- Application Number
- CN202421014918.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-11
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-05-11
AI Technical Summary
In the prior art, the thickness measurement of the intermediate enclosure layer depends on manual operation, which makes it difficult to control the accuracy, has high labor intensity and poses a personal safety threat.
A measuring device including a fixed part, a displacement part, a lifting part and a wire pulling part is designed, and a guide column, a lifting barrel, a hoist, a rope pulling distance sensor, a servo motor, a guide ring, a rope tension sensor and argon arc welding wire are used. The thickness of the intermediate enclosure layer is measured automatically, ensuring that the argon arc welding wire enters the liquid steel vertically to accurately measure the thickness of the slag layer.
It improves the accuracy of slag thickness measurement, reduces the labor intensity of staff, enhances the safety of the operation process, and ensures measurement efficiency and data accuracy.
Smart Images
Figure CN222344151U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a measuring device, in particular to a device capable of measuring the thickness of a tundish slag layer, and belongs to the technical field of tundish slag layer thickness measuring equipment. Background Art
[0002] In the continuous casting production process, tundish pouring is the last process before continuous casting; during the pouring process of the tundish, part of the slag in the ladle and the inclusions in the molten steel will continuously float up, forming a slag layer of a certain thickness on the surface of the molten steel in the tundish, and then discharged through the slag discharge port; in order to ensure the purity of the molten steel in the tundish, the thickness of the slag layer needs to be measured regularly; at present, the measurement of the slag layer in the tundish is done manually, and the staff holds an oxygen blowing tube on the tundish workbench and inserts it into the molten steel in the tundish for measurement; due to the high randomness of manual measurement operations, the accuracy is difficult to control and the labor intensity is high, accurate data cannot be obtained; in addition, the temperature on the tundish workbench is high, and the molten steel splashes during the close-range measurement process, posing a threat to the personal safety of the on-site staff; therefore, a slag layer thickness measuring device is needed to assist the staff in measuring the slag layer thickness, thereby improving the measurement accuracy, reducing the labor intensity of the staff and improving the safety factor of the operation process. Utility Model Content
[0003] The utility model aims to overcome the deficiencies of the prior art and provide a slag layer thickness measuring device suitable for a tundish, which can improve the measurement accuracy and efficiency of the slag layer thickness of the tundish, thereby reducing the labor intensity of the staff and ensuring the personal safety of the staff.
[0004] The problem described in the utility model is solved by the following technical solutions:
[0005] A slag layer thickness measuring device suitable for a tundish comprises a fixed part, a displacement part, a lifting part and a wire drawing part; the fixed part is placed on a tundish platform; the displacement part is arranged at the top of the fixed part; the lifting part is arranged at the end of the displacement part; the wire drawing part is arranged on the lifting part; the lifting part comprises a guide column, a lifting cylinder, a winch and a rope-drawing distance sensor; a square hole is arranged at the top of the lifting cylinder along its length direction, and the guide column is inserted into the square hole at the top of the lifting cylinder; the winch is arranged at the top of the guide column, and a slender hole is arranged at the center of the guide column along its length direction, and one end of the winch rope is connected to the bottom end of the inner wall of the lifting cylinder through the central slender hole of the guide column; the rope-drawing distance sensor is arranged at the top of the side wall of the guide column, and one end of its rope is connected to the top of the side wall of the lifting cylinder; the signal input end of the winch is connected to the signal output end of the CPU; the signal output end of the rope-drawing distance sensor is connected to the signal input end of the CPU.
[0006] The above-mentioned slag layer thickness measuring device suitable for the tundish, the wire pulling part includes a wire drum, a servo motor, a guide ring, a rope tension sensor and a rope binding rod; the two ends of the wire drum are respectively connected to the horizontal plate shafts on both sides, and the two horizontal plates are arranged at the top of the side wall of the lifting cylinder; the servo motor housing is arranged on the horizontal plate, and its output shaft is connected to one end of the wire drum; the rope tension sensor is arranged on the upper part of the side wall of the lifting cylinder, and it is located directly below the wire drum; the number of the guide rings is two, and they are all arranged on the side wall of the lifting cylinder through a bracket, and the two guide rings are respectively located on the upper and lower sides of the rope tension sensor; the rope binding rod is arranged at the lowest end of the lifting cylinder, and it is located directly below the guide ring; argon arc welding wire is wound on the wire drum, and the argon arc welding wire passes through the upper guide ring, the rope tension sensor, the lower guide ring from top to bottom in turn and is finally connected to the rope binding rod; the melting point of the argon arc welding wire is greater than the temperature of the slag and lower than the temperature of the molten steel; the signal input end of the servo motor is connected to the signal output end of the CPU; the signal output end of the rope tension sensor is connected to the signal input end of the CPU.
[0007] The above-mentioned slag layer thickness measuring device suitable for the tundish, the fixed part includes a column and a turntable; the lower end surface of the column is provided with a plurality of supporting legs; the turntable is axially connected to the top end surface of the column.
[0008] The above-mentioned slag layer thickness measuring device suitable for the tundish, the displacement part includes a long rod, a handle and a square column; the square column is arranged on the top end surface of the turntable; the square column is provided with a guide hole along the horizontal direction, and the long rod passes through the guide hole of the square column; a plurality of handles are provided on the side wall of the long rod along its length direction; the side wall of the square column is provided with a strip hole, and the strip hole is connected to the guide hole, and the handle passes through the strip hole.
[0009] The above-mentioned slag layer thickness measuring device suitable for the tundish is characterized in that the center lines of the guide column and the lifting cylinder are both vertical lines.
[0010] The utility model enables the lifting part to move to the top of the slag measuring hole of the tundish cover through the cooperation of the fixed part and the displacement part; then the wire drawing part is put into the molten steel through the lifting part, and the thickness of the slag layer in the tundish is measured through the wire drawing part; when the argon arc welding wire encounters the molten steel, the steel slag can only leave marks on the argon arc welding wire, and the thickness of the slag layer can be known through the length of the mark left at the bottom end of the argon arc welding wire. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0012] Figure 2 It is a partial enlarged structural schematic diagram of the utility model A.
[0013] The list of numbers in the figure is: 1. Guide column, 2. Lifting cylinder, 3. Winch, 4. Rope-pull distance sensor, 5. Wire drum, 6. Servo motor, 7. Guide ring, 8. Rope tension sensor, 9. Rope binding rod, 10. Column, 11. Turntable, 12. Long pole, 13. Handle, 14. Square column. DETAILED DESCRIPTION
[0014] See also Figure 1 and Figure 2 The utility model comprises a fixed part, a displacement part, a lifting part and a wire-pulling part; the fixed part is placed on the tundish platform; the displacement part is arranged at the top of the fixed part; the fixed part is used to provide support for the remaining parts; the displacement part is used to drive the lifting part and the wire-pulling part to be located just above the slag measuring hole of the tundish cover; the lifting part is arranged at the end of the displacement part; the wire-pulling part is arranged on the lifting part; the lifting part is used to put the wire-pulling part into the molten steel.
[0015] The lifting part includes a guide column 1, a lifting cylinder 2, a winch 3 and a pull-rope distance sensor 4; a square hole is provided at the top of the lifting cylinder 2 along its length direction, and the guide column 1 is inserted into the square hole at the top of the lifting cylinder 2; the insertion and sliding structure of the guide column 1 and the lifting cylinder 2 provides a guiding effect for the lifting and lowering of the lifting cylinder 2, ensuring that it can be lifted and lowered reliably; the winch 3 is provided at the top of the guide column 1, and a slender hole is provided at the center of the guide column 1 along its length direction, and one end of the winch 3 pull rope passes through the slender hole at the center of the guide column 1 The hole is connected to the bottom end of the inner wall of the lifting cylinder 2; the winch 3 drives the lifting of the lifting cylinder 2 by retracting and releasing the pull rope; the pull rope type distance sensor 4 is arranged at the top of the side wall of the guide column 1, and one end of its pull rope is connected to the top of the side wall of the lifting cylinder 2; the real-time position of the lifting cylinder 2 can be known through the pull rope type distance sensor 4, and then the lifting cylinder 2 can be stopped at a suitable height in cooperation with the winch; the signal input end of the winch 3 is connected to the signal output end of the CPU; the signal output end of the pull rope type distance sensor 4 is connected to the signal input end of the CPU.
[0016] The wire pulling part includes a wire drum 5, a servo motor 6, a guide ring 7, a rope tension sensor 8 and a rope binding rod 9; the two ends of the wire drum 5 are respectively connected to the horizontal plate shafts on both sides, and the two horizontal plates are arranged at the top of the side wall of the lifting cylinder 2; the servo motor 6 housing is arranged on the horizontal plate, and its output shaft is connected to one end of the wire drum 5; the servo motor 6 can drive the wire drum 5 to rotate and thus achieve the purpose of retracting and releasing the wire. In addition, the servo motor 6 can provide torque for the wire drum 5, so that the argon arc welding wire on the wire drum 5 can maintain a certain tension, ensuring that the argon arc welding wire can remain straight, and the straight argon arc welding wire can measure the thickness of the slag layer as accurately as possible. ; The rope tension sensor 8 is arranged on the upper part of the side wall of the lifting cylinder 2, and it is located directly below the wire drum 5; the number of the guide rings 7 is two, and they are both arranged on the side wall of the lifting cylinder 2 through a bracket, and the two guide rings 7 are respectively located on the upper and lower sides of the rope tension sensor 8; the guide rings 7 on both sides ensure that the argon arc welding wire can reliably pass through the rope tension sensor 8; the role of the rope tension sensor 8 is to monitor the tension of the argon arc welding wire in real time. When the lower end of the argon arc welding wire contacts the molten steel and is melted, the length of the trace left on the argon arc welding wire is the thickness of the slag layer, so when it is melted, it means that the argon arc welding wire is measured and can be recycled;
[0017] The rope binding rod 9 is arranged at the lowest end of the lifting cylinder 2, and it is located directly below the guide ring 7; the lowest end of the argon arc welding wire is tied to the rope binding rod 9; the argon arc welding wire is wound on the wire drum 5, and the argon arc welding wire passes through the upper guide ring 7, the rope tension sensor 8, and the lower guide ring 7 from top to bottom and is finally connected to the rope binding rod 9; the melting point of the argon arc welding wire is greater than the temperature of the slag and lower than the temperature of the molten steel; this ensures that the argon arc welding wire melts when it encounters molten steel, and can only leave marks when it encounters the slag layer, and the thickness of the slag layer can be known by measuring the length of the marks; the signal input end of the servo motor 6 is connected to the signal output end of the CPU; the signal output end of the rope tension sensor 8 is connected to the signal input end of the CPU.
[0018] The fixed part includes a column 10 and a turntable 11; a plurality of legs are arranged on the lower end surface of the column 10; the turntable 11 is axially arranged on the top end surface of the column 10; the orientation of the long rod 12 can be adjusted by rotating the turntable 11, and then the relative positions of the lifting part and the wire pulling part on the plane can be adjusted so that they can be aligned with the slag measuring hole on the middle bag cover.
[0019] The displacement part includes a long rod 12, a handle 13 and a square column 14; the square column 14 is arranged on the top end surface of the turntable 11; the square column 14 is provided with a guide hole in the horizontal direction, and the long rod 12 passes through the guide hole of the square column 14; the long rod 12 slides under the guidance of the guide hole of the square column 14; a plurality of handles 13 are provided on the side wall of the long rod 12 along its length direction; strip holes are provided on the side wall of the square column 14, and the strip holes are connected to the guide holes, and the handles 13 pass through the strip holes; the strip holes are channels for the handles 13 to move horizontally; the staff holds the handles 13 to drive the long rod 12 to adjust its position.
[0020] The center lines of the guide column 1 and the lifting cylinder 2 are both vertical lines; this ensures that the argon arc welding wire enters the molten steel in a vertical posture.
[0021] The model of the CPU module in the utility model is 87C196KC.
[0022] Actual use process: when it is necessary to measure the thickness of the slag layer of the tundish, move the device to the tundish platform. In the initial state, the bottom end of the argon arc welding wire has been tied to the rope binding rod, and the servo motor provides torque, and the argon arc welding wire has a certain tension; then push the long rod 12 and adjust the position so that the lifting cylinder 2 is located directly above the slag measuring hole of the tundish cover; then start the distance measurement; the winch 3 pays off the line to drive the lifting cylinder 2 to descend until the pull-rope distance sensor 4 senses that the lifting cylinder 2 is in place. At this time, the argon arc welding wire is immersed in the molten steel, and wait until the molten steel melts the argon. When arc welding the wire, the tension of the argon arc welding wire changes suddenly, which is detected by the rope tension sensor 8, and then the servo motor stops and stops providing torque; at the same time, the winch 3 starts to drive the lifting cylinder 2 to rise and reset; then the staff pulls the long rod 12 to retract the lifting part and the wire pulling part, and then measures the trace part of the argon arc welding wire, which is the slag layer thickness; finally, the trace part of the argon arc welding wire is wrapped around the rope binding rod, waiting for the next slag layer thickness measurement operation. In the next operation, the trace part left last time will be immersed in the molten steel and melted, which will not affect the measurement accuracy.
Claims
1. A slag layer thickness measuring device suitable for a tundish, characterized in that: The invention comprises a fixed part, a displacement part, a lifting part and a wire drawing part; the fixed part is placed on the tundish platform; the displacement part is arranged at the top of the fixed part; the lifting part is arranged at the end of the displacement part; the wire drawing part is arranged on the lifting part; the lifting part comprises a guide column (1), a lifting cylinder (2), a winch (3) and a wire drawing distance sensor (4); a square hole is arranged at the top of the lifting cylinder (2) along its length direction, and the guide column (1) is inserted into the square hole at the top of the lifting cylinder (2); the winch (3) is arranged The guide column (1) is arranged at the top end thereof, and a long and narrow hole is arranged at the center of the guide column (1) along its length direction, and one end of a pull rope of a winch (3) passes through the long and narrow hole at the center of the guide column (1) and is connected to the bottom end of the inner wall of the lifting cylinder (2); the pull rope type distance sensor (4) is arranged at the top end of the side wall of the guide column (1), and one end of its pull rope is connected to the top end of the side wall of the lifting cylinder (2); the signal input end of the winch (3) is connected to the signal output end of the CPU; and the signal output end of the pull rope type distance sensor (4) is connected to the signal input end of the CPU.
2. The slag layer thickness measuring device suitable for tundish according to claim 1, characterized in that: The wire pulling part comprises a wire drum (5), a servo motor (6), a guide ring (7), a rope tension sensor (8) and a rope binding rod (9); the two ends of the wire drum (5) are respectively connected to the cross plates on both sides, and the two cross plates are arranged at the top of the side wall of the lifting cylinder (2); the housing of the servo motor (6) is arranged on the cross plate, and its output shaft is connected to one end of the wire drum (5); the rope tension sensor (8) is arranged on the upper part of the side wall of the lifting cylinder (2), and is located directly below the wire drum (5); the number of the guide rings (7) is two, and they are both arranged on the side wall of the lifting cylinder (2) through a bracket, and the two guide rings (7) are respectively The rope tension sensor (8) is located at the upper and lower sides of the rope tension sensor (8); the rope binding rod (9) is arranged at the lowest end of the lifting cylinder (2) and is located directly below the guide ring (7); an argon arc welding wire is wound around the wire drum (5), and the argon arc welding wire passes through the upper guide ring (7), the rope tension sensor (8), and the lower guide ring (7) from top to bottom in sequence and is finally connected to the rope binding rod (9); the melting point of the argon arc welding wire is greater than the temperature of the steel slag and lower than the temperature of the molten steel; the signal input end of the servo motor (6) is connected to the signal output end of the CPU; the signal output end of the rope tension sensor (8) is connected to the signal input end of the CPU.
3. The slag layer thickness measuring device suitable for tundish according to claim 2, characterized in that: The fixed part comprises a column (10) and a turntable (11); a plurality of supporting feet are arranged on the lower end surface of the column (10); and the turntable (11) is axially connected to the top end surface of the column (10).
4. The slag layer thickness measuring device suitable for tundish according to claim 3 is characterized in that: The displacement part comprises a long rod (12), a handle (13) and a square column (14); the square column (14) is arranged on the top surface of the turntable (11); the square column (14) is provided with a guide hole along the horizontal direction, and the long rod (12) passes through the guide hole of the square column (14); a plurality of handles (13) are arranged on the side wall of the long rod (12) along its length direction; a strip hole is arranged on the side wall of the square column (14), and the strip hole is connected to the guide hole, and the handle (13) passes through the strip hole.
5. The slag layer thickness measuring device suitable for tundish according to claim 4, characterized in that: The center lines of the guide column (1) and the lifting cylinder (2) are both vertical lines.