Continuous casting tundish nozzle sealing detection device
By designing a continuous casting tundish nozzle sealing detection device, which uses a robotic arm and detection tube to determine the sealing status, the problem of the connection gap between the ladle nozzle and the tundish long nozzle was solved, reducing the risk of steel oxidation and improving the quality of the cast billet.
Patent Information
- Application Number
- CN202520018217.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-06
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-01-06
AI Technical Summary
In the existing technology, the connection between the ladle's bottom nozzle and the tundish's long nozzle relies on manual operation, which cannot effectively control the connection gap, resulting in a high risk of gas absorption and oxidation of the molten steel, thus affecting the quality of the cast billet.
Design a continuous casting tundish nozzle sealing detection device. A robotic arm drives an arc-shaped detection tube to approach or move away from the connection point, spraying smoke or flame to determine the sealing status, providing a basis for connection adjustment, and reducing the risk of gaps.
By using detection devices to determine the sealing status, connection gaps can be reduced, the risk of secondary oxidation of molten steel can be decreased, and the purity of the cast billet can be improved.
Smart Images
Figure CN223710934U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a continuous casting tundish nozzle sealing detection device belongs to continuous casting auxiliary equipment technical field. BACKGROUND
[0002] Continuous casting is the key process of metal solidification forming in steel smelting industry, and the secondary oxidation protection of molten steel in pouring process is the key means to guarantee the quality of steel. The movable connection of the ladle down nozzle and the tundish long nozzle is a major hidden trouble of molten steel gas absorption, and the connection angle and pressure of the ladle down nozzle and the tundish long nozzle are usually adjusted to reduce the gap between them, thereby reducing the risk of molten steel gas absorption oxidation. Under actual conditions, the connection of the ladle down nozzle and the tundish long nozzle is connected by manual operation, and the connection effect completely depends on experience judgment, and the connection gap between them cannot be controlled, which increases the risk of secondary oxidation of molten steel gas absorption. SUMMARY
[0003] The utility model solves the technical problems that the prior art provides a continuous casting tundish nozzle sealing detection device, which can detect the sealing state of the connection between the ladle down nozzle and the tundish long nozzle, reduce the connection gap, and reduce the risk of secondary oxidation of molten steel.
[0004] The utility model adopts the technical scheme that a continuous casting tundish nozzle sealing detection device, including the tundish, the tundish long nozzle is inserted in the tundish, the tundish long nozzle is set in the tundish through long nozzle stabilizing arm, the tundish top is equipped with the ladle, the ladle bottom is provided with the ladle down nozzle, the tundish long nozzle top and the ladle down nozzle bottom are connected, and the sealing detection device is arranged at the connection between the tundish long nozzle and the ladle down nozzle, the sealing detection device includes a plurality of arc detection tubes, a plurality of detection tubes are evenly distributed on the mechanical hand, and the mechanical hand drives the detection tubes to move closer to each other or move away from each other.
[0005] A moving mechanism is further provided, the moving mechanism includes a horizontally arranged moving rod, one end of the moving rod is connected with a moving drive device, the other end of the moving rod is connected with the mechanical hand, the moving drive device drives the moving rod to move, drives the mechanical hand to move synchronously, so that the detection tube is arranged at the connection between the tundish long nozzle and the ladle down nozzle, or moves away from the connection between the tundish long nozzle and the ladle down nozzle.
[0006] The detection tube is 2-4
[0007] The detection port is 1-3.
[0008] Compared with the prior art, the continuous casting tundish nozzle sealing detection device has the advantages that when the ladle lower nozzle is connected with the tundish long nozzle, the sealing state of the tundish long nozzle is judged through the flow direction of smoke or flame, and then the air suction state at the connection position of the ladle lower nozzle and the tundish long nozzle is judged, thereby providing a basis for the connection adjustment of the tundish long nozzle and the ladle lower nozzle, the gap at the connection position is reduced, the secondary oxidation risk of the molten steel caused by air suction is reduced, and the purity of the cast slab is improved. BRIEF DESCRIPTION OF DRAWINGS
[0009] Figure 1 It is a schematic view of a continuous casting tundish nozzle sealing detection device according to an embodiment of the utility model;
[0010] Figure 2 It is a schematic view of a detection tube;
[0011] In the drawing, 1 is a ladle, 2 is a ladle lower nozzle, 3 is a detection tube, 4 is a long nozzle stabilizing arm, 5 is a tundish, 6 is a mechanical hand, 7 is a moving rod, 8 is a moving driving device, 9 is a detection port, and 10 is a tundish long nozzle. DETAILED DESCRIPTION
[0012] The utility model will be described further in detail in combination with the embodiment of the drawings.
[0013] As Figure 1 , 2As shown, the continuous casting tundish nozzle sealing detection device in the embodiment includes a tundish 5, a tundish long nozzle 10 is inserted in the tundish 5, and the tundish long nozzle 10 is arranged in the tundish 5 through a long nozzle stabilizing arm 4. A ladle 1 is arranged above the tundish 5, and a ladle lower nozzle 2 is arranged at the bottom of the ladle 1. The top of the tundish long nozzle 10 is connected to the bottom of the ladle lower nozzle 2, and the sealing detection device is arranged at the connection between the tundish long nozzle 10 and the ladle lower nozzle 2. The sealing detection device includes a plurality of arc-shaped detection tubes 3, and the plurality of detection tubes 3 are uniformly distributed on a mechanical hand 6 in a ring shape. A plurality of detection ports 9 are respectively arranged on the inner side of the detection tubes 3. The opening and closing of the mechanical hand drives the detection tubes to move close to or away from each other. When the detection tubes move close to each other, the detection ports spray smoke or flame at the connection between the tundish long nozzle and the ladle lower nozzle, the sealing state of the tundish long nozzle is judged through the flow direction of the smoke or flame, and then the air suction state of the connection between the ladle lower nozzle and the tundish long nozzle is judged, which provides a basis for the connection adjustment of the tundish long nozzle and the ladle lower nozzle, reduces the gap at the connection, reduces the risk of secondary oxidation of molten steel due to air suction, and improves the purity of cast slabs. The outer side of the mechanical hand 6 is connected to a horizontally arranged moving rod 7, the moving rod 7 is connected to a moving driving device 8, the moving driving device 8 drives the horizontal movement of the moving rod 7, drives the synchronous movement of the mechanical hand 6, so that the detection tubes 3 move to the connection between the tundish long nozzle and the ladle lower nozzle, and the sealing state of the connection is detected; or moves away from the connection between the tundish long nozzle and the ladle lower nozzle.
[0014] The above-mentioned detection tube is 2-4. The detection tube is a metal pipe. Any detection tube is respectively provided with a detection medium inlet, the detection medium inlet is connected with a pipeline, and a valve is arranged on the pipeline. Smoke or a fuel source is introduced into the pipeline. When the pipeline is provided with the fuel source, the detection port is provided with an igniter, the igniter ignites the fuel source, and then a flame is formed.
[0015] The above-mentioned detection port 9 is 1-3.
[0016] The above-mentioned moving driving device is an electric cylinder or a hydraulic cylinder.
[0017] During the connection operation of the ladle lower nozzle and the tundish long nozzle, the sealing state of the tundish long nozzle is judged through the flow direction of the smoke or flame, and then the air suction state of the connection between the ladle lower nozzle and the tundish long nozzle is judged, which provides a basis for the connection adjustment of the tundish long nozzle and the ladle lower nozzle, reduces the gap at the connection, reduces the risk of secondary oxidation of molten steel due to air suction, and improves the purity of cast slabs.
[0018] In addition to the above-mentioned embodiments, the utility model also includes other implementation manners, and any technical scheme formed by equivalent transformation or equivalent replacement shall fall within the protection scope of the utility model claim.
Claims
1. A continuous casting tundish nozzle sealing detection device, comprising a tundish, a tundish long nozzle is inserted in the tundish, the tundish long nozzle is arranged in the tundish through a long nozzle stabilizing arm; a ladle is arranged above the tundish, a ladle lower nozzle is arranged at the bottom of the ladle, and the top of the tundish long nozzle is connected with the bottom of the ladle lower nozzle, characterized in that: The sealing detection device is arranged at the connection between the long nozzle of the tundish and the lower nozzle of the ladle, and comprises a plurality of arc-shaped detection tubes which are evenly distributed on the manipulator in a ring shape, and the manipulator drives the detection tubes to move close to or away from each other; a plurality of detection ports are respectively arranged on the inner side of the detection tubes, the detection ports spray detection medium to the connection between the long nozzle of the tundish and the lower nozzle of the ladle, and the sealing state of the long nozzle of the tundish is judged by the flow of the detection medium. 2. The apparatus for detecting a sealing of a nozzle of a continuous casting tundish according to claim 1, wherein: A moving mechanism is further arranged, which comprises a horizontally arranged moving rod, one end of the moving rod is connected with a moving drive device, the other end of the moving rod is connected with the manipulator, the moving drive device drives the moving rod to move, and drives the manipulator to move synchronously, so that the detection tube is arranged at the connection between the long nozzle of the tundish and the lower nozzle of the ladle; or moves away from the connection between the long nozzle of the tundish and the lower nozzle of the ladle.
3. The apparatus for detecting a sealing of a nozzle of a continuous casting tundish according to claim 1, wherein: The detection tube is 2-4.
4. The apparatus for detecting a sealing of a nozzle of a continuous casting tundish according to claim 1, wherein: The detection port is 1-3.