Movable variable-distance crystallizer double-flow wire feeding device

Abstract

The utility model discloses a movable variable distance crystallizer double -stream silk -feeding device relates to steel metallurgy continuous casting production equipment field, including movable platform, two slide rails, two silk -feeding devices and two sets of guiding device. Movable platform bottom has go round and platform locking device, two slide rails are fixed in parallel on the platform and have positioning hole, two silk -feeding devices are in parallel and are established in the platform, and the bottom has the cooperation trolley of slide rail, can along the lateral movement adjustment interval of slide rail, also be equipped with locking pin, can with different positioning hole cooperation and lock it, two sets of guiding device are connected to silk -feeding device export end respectively, and alloy core spun silk is guided crystallizer, realizes the flexible adjustment and convenient use of silk -feeding device interval.

Description

Technical Field

[0001] This utility model relates to the technical field of continuous casting production equipment in the iron and steel metallurgical industry, and in particular to a mobile variable-pitch crystallizer dual-flow wire feeding device. Background Technology

[0002] In the continuous casting process of the iron and steel metallurgical industry, the mold wire feeding device is an important auxiliary material addition device. Its function is to add alloy cored wire to the molten steel so that the billet obtains the desired alloy elements to meet performance indicators. However, existing mold wire feeding devices have many problems. They are fixedly installed near the mold on the continuous casting platform, occupying a large space, and have stringent requirements for the surrounding environment, making it impossible to change the work position at any time according to actual production. For slab continuous casting machines, alloy wire often needs to be fed into the mold at multiple points simultaneously during production, and the size of the mold changes with the production cross-section, and the position of the feeding point also changes accordingly. Existing fixed mold wire feeding devices cannot meet these requirements. On the one hand, multiple wire feeding devices are required, leading to increased production costs and a larger number of devices required; on the other hand, adjusting the spacing of the wire feeding devices is difficult, and their own movement is inconvenient, seriously affecting the on-site user experience. Utility Model Content

[0003] The purpose of this invention is to provide a movable, variable-pitch crystallizer dual-flow wire feeding device, which aims to solve the problems existing in the current wire feeding device and realize flexible adjustment of the wire feeding device spacing and convenient on-site use.

[0004] To achieve the above objectives, this utility model provides the following solution:

[0005] This utility model provides a movable, variable-pitch crystallizer dual-flow wire feeding device, comprising: a movable platform, two slide rails, two wire feeding devices, and two sets of guiding devices. The bottom of the movable platform is equipped with wheels and a platform locking device. The two slide rails are fixedly installed parallel to each other on the movable platform, and multiple sets of positioning holes are formed on the slide rails. The two wire feeding devices are arranged parallel to each other on the movable platform, and the bottom of each wire feeding device is equipped with rollers that cooperate with the slide rails, allowing each wire feeding device to move laterally along the slide rails, thereby adjusting the distance between the two wire feeding devices. Each wire feeding device is equipped with a locking pin, which can selectively cooperate with positioning holes at different positions on the slide rails to lock the wire feeding device onto the movable platform. The two sets of guiding devices are respectively connected to the outlet ends of the two wire feeding devices to guide the alloy cored wire into the crystallizer.

[0006] Preferably, the spacing between the two wire feeding devices is adjustable from 800mm to 1100mm.

[0007] Preferably, the guiding device is an integral high-temperature resistant metal tube, comprising a horizontal straight section, a curved section and a vertical section connected in sequence, wherein the vertical section is configured to be perpendicular to the liquid surface of the crystallizer during operation.

[0008] Preferably, the guiding device is connected to the body of the wire feeding device via a hinge mechanism, so that the guiding device can rotate up and down around a horizontal axis. The hinge mechanism is also provided with an angle adjustment component for adjusting and locking the tilt angle of the guiding device.

[0009] Preferably, the angle adjustment component is a threaded tensioner, which can raise the guide device by an angle of 15° to 30° by screwing on the threaded tensioner.

[0010] Preferably, the high-temperature resistant metal tube is an austenitic stainless steel tube.

[0011] Preferably, the diameter of the alloy cored wire being fed by the wire feeding device is Φ2.0mm to Φ8.0mm.

[0012] Preferably, the system further includes a control system electrically connected to the wire feeding device, wherein the control system is a frequency conversion control system capable of independently controlling the wire feeding speed of each wire feeding device.

[0013] Preferably, it also includes a pusher, which is fixedly connected to one side of the mobile platform, and the surface of the pusher is provided with anti-slip texture.

[0014] The present invention achieves the following technical advantages over the prior art:

[0015] This invention provides a movable, variable-pitch crystallizer dual-flow wire feeding device. Through the design of a movable platform and casters, the device achieves flexible overall movement, allowing for rapid adjustment of the workstation according to production needs. This effectively solves the problems of large space occupation and inconvenient movement associated with existing fixed devices. The platform locking device ensures the stability of the device during operation, preventing wire feeding deviations caused by movement. The two wire feeding devices, through the cooperation of slide rails and rollers, achieve lateral adjustment of the spacing, adapting to the varying wire feeding point requirements of crystallizers with different cross-sections, reducing the number of devices required and lowering production costs. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1A front view of the movable variable-pitch crystallizer dual-flow wire feeding device provided by this utility model;

[0018] Figure 2 A side view of the movable variable-pitch crystallizer dual-flow wire feeding device provided by this utility model;

[0019] Figure 3 A top view of the movable variable-pitch crystallizer dual-flow wire feeding device provided by this utility model;

[0020] Figure 4 A front view of the movable variable-pitch crystallizer dual-flow wire feeding device provided by this utility model in use;

[0021] Figure 5 A top view of the movable variable-pitch crystallizer dual-flow wire feeding device provided by this utility model in use;

[0022] In the diagram: 1. Wire feeding device; 2. Control system; 3. Locking pin; 4. Wheel; 5. Locking device; 6. Push handle; 7. Tensioner; 8. Guide device; 9. Hinge; 10. Positioning hole; 11. Roller; 12. Mobile platform; 15. Slide rail. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] The purpose of this invention is to provide a movable, variable-pitch crystallizer dual-flow wire feeding device, which aims to solve the problems existing in the current wire feeding device and realize flexible adjustment of the wire feeding device spacing and convenient on-site use.

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] This utility model provides a movable, variable-pitch crystallizer dual-flow wire feeding device, such as... Figures 1-4As shown, the system includes: a movable platform 12, two slide rails 15, two wire feeding devices 1, and two sets of guide devices 8. The bottom of the movable platform 12 is equipped with wheels 4 and a platform locking device 5. The two slide rails 15 are fixedly installed parallel to each other on the movable platform 12, and multiple sets of positioning holes 10 are provided on the slide rails 15. The two wire feeding devices 1 are arranged in parallel on the movable platform 12, and the bottom of each wire feeding device 1 is equipped with rollers 11 that cooperate with the slide rails 15, so that each wire feeding device 1 can move laterally along the slide rails 15, thereby adjusting the distance between the two wire feeding devices 1. A locking pin 3 is provided on the slide rail 15, which can be selectively engaged with positioning holes 10 at different positions on the slide rail 15 to lock the wire feeding device 1 onto the movable platform 12. Two sets of guiding devices 8 are respectively connected to the outlet ends of the two wire feeding devices 1 to guide the alloy cored wire into the crystallizer. The wheels 4 allow the movable platform 12 to be easily moved to different positions on the site to meet the needs of different workstations. The platform locking device 5 can firmly fix the platform after it reaches the workstation, ensuring that the platform does not move during the wire feeding process and ensuring the stability and accuracy of the wire feeding operation. The parallel-installed slide rail 15 provides a stable and smooth lateral movement track for the wire feeding device 1. Multiple sets of positioning holes 10 engage with the locking pins 3 on the wire feeding device 1 to precisely adjust and lock the position of the wire feeding device 1 to meet different wire feeding process requirements. The cooperation between roller 11 and slide rail 15 allows wire feeding device 1 to move flexibly laterally on the platform, facilitating quick and easy adjustment of the distance between two wire feeding devices 1 to adapt to the requirements of different crystallizer sizes and production processes regarding wire feeding position. The locking pin 3, in cooperation with positioning holes 10 at different positions, can precisely and securely lock wire feeding device 1 in the required position, preventing displacement during wire feeding and ensuring the stability and accuracy of the feeding operation. The guiding device 8 guides the alloy cored wire accurately into the crystallizer, ensuring uniform distribution of alloy elements in the molten steel, improving billet quality, and reducing production problems caused by inaccurate alloy wire feeding position.

[0027] In a preferred embodiment, the spacing between the two wire feeding devices 1 is adjustable from 800mm to 1100mm. Within this range, the spacing between the wire feeding devices 1 can be flexibly adjusted to adapt to various crystallizers of different specifications and the requirements of different production processes for the wire feeding spacing, which greatly improves the versatility and adaptability of the device.

[0028] In a preferred embodiment, the guide device 8 is an integral high-temperature resistant metal tube, comprising a horizontal straight section, a curved section, and a vertical section connected in sequence. The vertical section is positioned perpendicular to the liquid surface of the crystallizer during operation. The integral design reduces gaps between components, improves the stability of the guide device 8, and effectively ensures the smooth passage of the alloy cored wire. The high-temperature resistant metal tube can operate stably in the high-temperature crystallizer environment and is not easily damaged. The arrangement of the horizontal straight section, curved section, and vertical section, and the fact that the vertical section is perpendicular to the liquid surface of the crystallizer, ensures that the alloy wire can be fed smoothly and accurately into the molten steel in the crystallizer.

[0029] In a preferred embodiment, the guide device 8 is connected to the body of the wire feeding device 1 via a hinge 9 mechanism, so that the guide device 8 can rotate up and down around a horizontal axis. The hinge 9 mechanism is also provided with an angle adjustment component for adjusting and locking the tilt angle of the guide device 8. The guide device 8 can rotate up and down around a horizontal axis and can lock the tilt angle through the angle adjustment component. This allows the angle of the guide device 8 to be reasonably adjusted under different crystallizer positions and different production conditions, ensuring smooth and accurate feeding of alloy wire and improving the adaptability of the device to complex production environments.

[0030] In a preferred embodiment, the angle adjustment component is a threaded tensioner 7. By tightening the threaded tensioner 7, the guide device 8 can be raised by an angle of 15° to 30°. The threaded tensioner 7 is easy to operate and provides precise adjustment. Adjusting the guide device 8 within the angle range of 15° to 30° meets the needs of various special working conditions. For example, it facilitates the movement of the wire feeding platform before and after wire feeding without affecting the pouring of molten steel in the crystallizer, further improving the flexibility of the device.

[0031] In a preferred embodiment, the high-temperature resistant metal tube is an austenitic stainless steel tube. Austenitic stainless steel tubes have good high-temperature resistance and corrosion resistance. They are not easily damaged or deformed during long-term use in the high-temperature environment of the crystallizer, which greatly improves the service life of the guide device 8, reduces equipment maintenance costs, and does not interfere with the relevant liquid level detection system, thus ensuring stable production.

[0032] In a preferred embodiment, the wire feeding device 1 is adapted to feed alloy cored wire with a diameter of Φ2.0mm to Φ8.0mm, which can accommodate alloy cored wires of various diameters, greatly expanding the applicability of the device, meeting the different requirements of different steel grades for the addition of alloying elements, providing convenience for the addition of various alloying elements in the steel production process, and improving the versatility and practicality of the device.

[0033] In a preferred embodiment, a control system 2 electrically connected to the wire feeding device 1 is also included. The control system 2 is a frequency conversion control system 2, which can independently control the wire feeding speed of each wire feeding device 1. The frequency conversion control system 2 can accurately control the wire feeding speed of each wire feeding device 1 according to different production process requirements. This can better and more accurately control the content of alloying elements in the billet, ensure the stability of billet quality, and meet the needs of various complex production processes for adjusting the wire feeding speed.

[0034] In a preferred embodiment, a pusher 6 is also included. The pusher 6 is fixedly connected to one side of the mobile platform 12. The surface of the pusher 6 is provided with anti-slip texture. The pusher 6 makes it convenient for the operator to push the mobile platform 12 to move. The anti-slip texture design can increase the friction between the operator's hand and the pusher 6, making the pushing process safer and less strenuous, and improving the convenience of operation.

[0035] The following example illustrates the application method of this patent by feeding a φ2.8mm rare earth alloy wire onto a 2040mm×230mm cross-section in a slab continuous casting crystallizer:

[0036] Silk feeding preparation stage

[0037] Adjustment of the spacing between the wire feeding devices 1: Based on process requirements, precisely determine the wire feeding position (distance from the narrow side of the crystallizer or the immersion nozzle). Use lateral thrust to push the roller 11, allowing it to move smoothly along the slide rail 15. Precisely adjust the spacing between the two wire feeding devices 1 to match the required wire feeding position. After adjustment, accurately insert the locking pin 3 into the corresponding positioning hole 10 on the slide rail 15 to firmly fix the wire feeding device 1 and prevent displacement during subsequent operations.

[0038] Fixing the alloy core-spun wire spool: Place the 30kg internally drawn alloy core-spun wire spool stably on the special fixing frame to ensure the spool is placed stably. After opening the spool, manually thread the wire into the wire feeding device 1, making sure the end of the wire is flush with the end of the guide device 8, to prepare for smooth wire feeding.

[0039] The wire feeding platform moves to the crystallizer stage.

[0040] Adjustment of guide device 8: After the wire is threaded, tighten the threaded tensioner 7 to raise the guide device 8 by a certain angle (15°-30°) around the horizontal axis, so as to avoid unnecessary obstruction of the wire when moving the platform.

[0041] Platform positioning: Move the wire feeding platform to the designated position in front of the crystallizer. After reaching the position, reverse the screw tensioner 7 to restore the guide device 8 to a horizontal state, ensuring accurate alloy wire feeding path.

[0042] Platform Positioning and Locking: Carefully adjust the front and rear positions of the wire feeding platform to ensure that the vertical section of the guide device 8 is precisely centered in the thickness direction of the crystallizer, guaranteeing that the alloy wire can be accurately fed into the molten steel. Then, crank the handwheel of the platform locking device 5 to securely lock the moving platform, preventing displacement during wire feeding.

[0043] Silk feeding stage

[0044] Power and electrical connection: Connect the power air pipe according to the device requirements to provide power to the wire feeding device 1; start the power supply and connect the control system 2.

[0045] Wire feeding operation: Set the initial wire feeding speed to 2.8 m / min, turn on the wire feeding device 1, and start feeding alloy cored wire into the crystallizer. According to the actual process requirements, use the frequency conversion control system 2 to gradually and accurately adjust the wire feeding speed to the target speed. For example, in this example, the target speed of another wire feeding point is 8.4 m / min.

[0046] End of feeding stage

[0047] Adjustment of guide device 8: After the wire feeding is completed, tighten the thread tensioner 7 again to raise the guide device 8 by an angle of 15°-30° to prevent the wire from remaining in the crystallizer or being affected by other factors.

[0048] Platform movement: Open the platform locking device 5, push the anti-slip textured area on the pusher 6, and easily move the wire feeding platform backward to a suitable position to end the entire wire feeding operation.

[0049] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A movable, variable-pitch crystallizer dual-flow wire feeding device, characterized in that: include: A mobile platform, the bottom of which is equipped with wheels and a platform locking device; Two slide rails are fixedly installed in parallel on the mobile platform, and multiple sets of positioning holes are provided on the slide rails; Two wire feeding devices are arranged in parallel on the movable platform. Each wire feeding device has rollers at its bottom that cooperate with the slide rail, allowing each wire feeding device to move laterally along the slide rail, thereby adjusting the distance between the two wire feeding devices. Each wire feeding device is equipped with a locking pin, which can selectively cooperate with positioning holes at different positions on the slide rail to lock the wire feeding device to the movable platform. as well as Two sets of guiding devices are respectively connected to the outlet ends of the two wire feeding devices to guide the alloy cored wire into the crystallizer.

2. The movable variable-pitch crystallizer dual-flow wire feeding device according to claim 1, characterized in that: The spacing between the two wire feeding devices can be adjusted from 800mm to 1100mm.

3. The movable variable-pitch crystallizer dual-flow wire feeding device according to claim 1, characterized in that: The guiding device is an integral high-temperature resistant metal tube, comprising a horizontal straight section, a curved section and a vertical section connected in sequence, wherein the vertical section is configured to be perpendicular to the liquid surface of the crystallizer during operation.

4. The movable variable-pitch crystallizer dual-flow wire feeding device according to claim 3, characterized in that: The guiding device is connected to the body of the wire feeding device via a hinge mechanism, so that the guiding device can rotate up and down around a horizontal axis. The hinge mechanism is also provided with an angle adjustment component for adjusting and locking the tilt angle of the guiding device.

5. The movable variable-pitch crystallizer dual-flow wire feeding device according to claim 4, characterized in that: The angle adjustment component is a threaded tensioner. By tightening the threaded tensioner, the guide device can be raised by an angle of 15° to 30°.

6. The movable variable-pitch crystallizer dual-flow wire feeding device according to claim 3, characterized in that: The high-temperature resistant metal pipe is an austenitic stainless steel pipe.

7. The movable variable-pitch crystallizer dual-flow wire feeding device according to claim 1, characterized in that: The wire feeding device is adapted to feed alloy cored wires with diameters ranging from Φ2.0mm to Φ8.0mm.

8. The movable variable-pitch crystallizer dual-flow wire feeding device according to claim 1, characterized in that: It also includes a control system electrically connected to the wire feeding device, the control system being a frequency conversion control system capable of independently controlling the wire feeding speed of each of the wire feeding devices.

9. The movable variable-pitch crystallizer dual-flow wire feeding device according to claim 1, characterized in that: It also includes a pusher, which is fixedly connected to one side of the mobile platform, and the surface of the pusher is provided with anti-slip texture.

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