Submerged arc furnace tapping equipment

Abstract

The present invention discloses a submerged arc furnace tapping device, comprising: a furnace opening device, a power-on device, and a control device; the furnace opening device comprises a track and a furnace opening machine, the track extending along the direction of the furnace eye opening of the submerged arc furnace and centered with the opening direction; the furnace opening machine is arranged on the track and moves along the track, the furnace opening machine selectively clamps a burn-through device, and melts the furnace eye through the burn-through device; the power-on device comprises a power-on slide, a power-taking trolley, and a busbar, the power-on slide being arranged parallel to the track and located directly above the track; the power-taking trolley is movably arranged on the power-on slide, electrically connected to the power-on slide, and electrically connected to the burn-through device via the busbar; the control device is connected to the furnace opening machine and the power-taking trolley, and is used to obtain movement data of the burn-through device driven by the furnace opening machine, and to control the movement distance of the power-taking trolley based on the movement data. The present invention enables unmanned operation of the burn-through furnace tapping.

Description

Technical Field

[0001] The invention belongs to the field of submerged arc furnace operation, and in particular relates to a submerged arc furnace unloading device capable of realizing unmanned operation. Background Art

[0002] Currently, the process of tapping a ferroalloy smelting furnace involves multiple steps, including eyelet opening, eyelet drawing, eyelet plugging, and eyelet maintenance. Both eyelet opening and eyelet maintenance require the use of a burner. Currently, eyelet burning is performed manually. A burner is placed in front of the eyelet. The burner is energized, and the operator holds a steel chisel, which is attached to the carbon rod of the burner. The entire chisel is electrically charged, and the operator uses the charged chisel to burn the eyelet during eyelet opening and maintenance. The energized chisel poses a risk of electric shock, and the high pressure inside the furnace often causes hot molten iron to splash out when the eyelet is opened, easily causing burns. The high dust levels in front of the furnace, especially in the summer, create a harsh working environment. Manual work is labor-intensive, risky, and requires a harsh working environment. A device that can automatically burn the eyelet is urgently needed to replace manual labor.

[0003] Therefore, how to solve one of the above problems and realize unmanned operation, thereby reducing labor intensity and improving safety, is an issue that the industry urgently needs to solve. Summary of the Invention

[0004] A main purpose of the present invention is to provide a submerged arc furnace tapping device that can be operated unmanned, thereby reducing labor intensity and improving safety.

[0005] In order to achieve the above-mentioned object of the invention, the present invention adopts the following technical solutions:

[0006] According to one aspect of the present invention, there is provided a submerged arc furnace tapping device, comprising: a furnace opening device, a power-on device, and a control device;

[0007] The furnace opening device includes a track and a furnace opening machine, wherein the track extends along the furnace eye opening direction of the ore furnace and is aligned with the center of the opening direction; the furnace opening machine is arranged on the track and moves along the track, and the furnace opening machine selectively clamps the burner and melts the furnace eye through the burner;

[0008] The power-on device includes a power-on slide, a power-taking trolley, and a busbar. The power-on slide is arranged parallel to the track and is located directly above the track. A power-taking trolley is movably arranged on the power-on slide. The power-taking trolley is electrically connected to the power-on slide and is electrically connected to the burn-through device through the busbar.

[0009] The control device is connected to the furnace opening machine and the power-taking trolley, and is used to obtain the movement data of the burn-through device driven by the furnace opening machine, and control the movement distance of the power-taking trolley according to the movement data.

[0010] As in one embodiment of the present invention, a first sensor is provided between the furnace opening machine and the track, the control device is connected to the first sensor, and the first sensor is used to detect movement data of the furnace opening machine relative to the track.

[0011] As in one embodiment of the present invention, the furnace opening machine includes a base and a boom, the base is arranged on the track, the boom is slidably arranged on the base, the boom is used to clamp the burner, and a second sensor is provided between the boom and the base, the second sensor is used to detect the movement data of the boom relative to the base.

[0012] In one embodiment of the present invention, the power-collecting vehicle includes a vehicle body, a controller, and a driver, wherein the controller is coupled to the driver and is configured to control the movement distance of the vehicle body through the driver. The driver is a servo motor or a stepper motor.

[0013] As in one embodiment of the present invention, the power-on device also includes a buffer mechanism, which is arranged on the power-on slide and connected to the power-taking trolley, for controlling the moving speed of the power-taking trolley so that the busbar length is adapted to the power-taking length of the burn-through device.

[0014] In one embodiment of the present invention, the buffer mechanism includes a pulley assembly, a traction member, and a counterweight. The pulley assembly is located at one end of the upper power slideway and is located away from the submerged arc furnace. One end of the traction member is connected to the power trolley, and the other end passes through the pulley assembly and connects to the counterweight. The buffer mechanism prevents the power trolley from moving too fast and causing busbar entanglement. In emergency situations, such as emergency parking or power outages, the counterweight can reset the power trolley to further prevent entanglement.

[0015] As in one embodiment of the present invention, the buffer mechanism further includes an anti-collision block provided on the power-taking trolley, wherein the anti-collision block is a flexible block protruding from the power-taking trolley.

[0016] As in one embodiment of the present invention, the buffer mechanism also includes a limiting structure arranged on the upper power slide, which is used to limit the moving position of the power-taking trolley. When the power-taking trolley is in place, the anti-collision block first contacts the limiting structure.

[0017] As an embodiment of the present invention, the control device is a single chip microcomputer, a programmable controller or a slave computer.

[0018] According to one embodiment of the present invention, the burner is equipped with a carbon rod.

[0019] As in one embodiment of the present invention, the burn-through device further includes a long support rod, a conical connector, a carbon rod clamp and a power connection portion, wherein the conical connector is arranged at one end of the long support rod, the carbon rod clamp is arranged at the other end of the long support rod, the conical connector is connected to the furnace opening machine, the carbon rod clamp is arranged in the carbon rod clamp, and the power connection portion is connected to the busbar and electrically connected to the carbon rod.

[0020] As can be seen from the above technical solution, the advantages and positive effects of the submerged arc furnace tapping equipment of the present invention are:

[0021] In this invention, the furnace opening machine automatically powers on under the control of a control device and travels along a track to burn the eye, achieving unmanned operation at the furnace and reducing the risks of furnace operations. Operators now operate from a console in the central control room instead of the previous heavy, high-intensity, and high-risk tasks, significantly improving the working environment and reducing labor intensity. The automatic eye-burning equipment also features an automatic positioning function, ensuring consistent eye-opening positions each time, minimizing damage to the furnace lining.

[0022] Furthermore, because the control device is connected to the furnace starter and the power trolley to obtain the movement data of the burn-through device driven by the furnace starter and to control the movement distance of the power trolley based on the movement data, the power trolley can achieve synchronous movement with the burn-through device, avoiding the pulling of the busbar caused by the power trolley being too far away from the burn-through device, and avoiding the entanglement of the busbar caused by the power trolley being too close to the burn-through device. This greatly improves the safety of the embodiment of the present application, significantly reduces the failure rate, and prolongs the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in this application. For ordinary technicians in this field, other drawings can be obtained like these drawings without paying any creative work.

[0024] Figure 1 It is a partial schematic diagram of the use status of the tapping equipment of the ore-fired furnace of the present invention.

[0025] Figure 2 It is a schematic diagram of the overall structure of the ore-fired furnace tapping equipment of the present invention.

[0026] Figure 3 It is a structural schematic diagram of the upper electric slide in the ore-generating furnace discharge equipment of the present invention.

[0027] Figure 4 It is a schematic diagram of the three-dimensional structure of the power-taking trolley in the ore-generating furnace tapping equipment of the present invention.

[0028] Figure 5This is a schematic diagram of the main structure of the power-taking trolley in the ore-generating furnace tapping equipment of the present invention.

[0029] Figure 6 It is a schematic cross-sectional structural diagram of the power-taking trolley in the ore-generating furnace tapping equipment of the present invention.

[0030] Figure 7 It is a structural schematic diagram of the burn-through device in the submerged arc furnace tapping equipment of the present invention.

[0031] Figure 8 It is a structural schematic diagram of the furnace opening machine in the ore-generating furnace tapping equipment of the present invention. DETAILED DESCRIPTION

[0032] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art. Like reference numerals in the figures represent like or similar structures, and thus their detailed description will be omitted.

[0033] In the following description of different examples of the present invention, reference is made to the accompanying drawings, which form a part of the present invention and in which are shown by way of example different exemplary structures, systems and steps that can implement aspects of the present invention. It should be understood that other specific schemes of components, structures, exemplary devices, systems and steps can be used, and structural and functional modifications can be made without departing from the scope of the present invention. Moreover, although the terms "top", "bottom", "front", "rear", "side" and the like may be used in this specification to describe different exemplary features and elements of the present invention, these terms are used herein for convenience only, such as the orientation of the examples as described in the accompanying drawings. Nothing in this specification should be construed as requiring a specific three-dimensional orientation of the structure to fall within the scope of the present invention.

[0034] Figure 1 It is a partial schematic diagram of the use status of the tapping equipment of the ore-fired furnace of the present invention.

[0035] Figure 2 It is a schematic diagram of the overall structure of the ore-fired furnace tapping equipment of the present invention.

[0036] Figure 3 It is a structural schematic diagram of the upper electric slide in the ore-generating furnace discharge equipment of the present invention.

[0037] Figure 4 It is a schematic diagram of the three-dimensional structure of the power-taking trolley in the ore-generating furnace tapping equipment of the present invention.

[0038] Figure 5 This is a schematic diagram of the main structure of the power-taking trolley in the ore-generating furnace tapping equipment of the present invention.

[0039] Figure 6 It is a schematic cross-sectional structural diagram of the power-taking trolley in the ore-generating furnace tapping equipment of the present invention.

[0040] Figure 7 It is a structural schematic diagram of the burn-through device in the submerged arc furnace tapping equipment of the present invention.

[0041] Figure 8 It is a structural schematic diagram of the furnace opening machine in the ore-generating furnace tapping equipment of the present invention.

[0042] like Figures 1 to 8 As shown, the electric arc furnace discharge equipment of this embodiment includes: a furnace opening device, a power-on device and a control device; wherein, the furnace opening device is used for furnace opening operation, the power-on device is used to supply power to the furnace opening device, and the control device controls the action of the furnace opening device.

[0043] In this embodiment, the furnace opening device includes a track 8 and a furnace opening machine 7. The track 8 extends along the direction of the furnace eye opening of the ore furnace and is centered with the opening direction. The furnace opening machine 7 is set on the track 8 and moves along the track 8. The furnace opening machine 7 selectively clamps the burner 5 and melts the furnace eye through the burner 5.

[0044] In this embodiment, the power-on device includes an upper power slide 11, a power-taking trolley 3 and a busbar 4. The upper power slide 11 is arranged parallel to the track 8 and is located directly above the track 8; the power-taking trolley 3 is movably arranged on the upper power slide 11, and the power-taking trolley 3 is electrically connected to the upper power slide 11, and is electrically connected to the burner 5 through the busbar 4.

[0045] In this embodiment, the control device is connected to the furnace opening machine 7 and the power-taking trolley 3 to obtain movement data of the burn-through device 5 driven by the furnace opening machine 7 and control the movement distance of the power-taking trolley 3 according to the movement data.

[0046] The embodiment of the present application connects a control device to the furnace starter and the power trolley to obtain movement data of the burn-through device driven by the furnace starter, and controls the movement distance of the power trolley based on the movement data. This allows the power trolley to move synchronously with the burn-through device, avoiding the pulling of the busbar caused by the power trolley being too far away from the burn-through device, and avoiding the entanglement of the busbar caused by the power trolley being too close to the burn-through device. This significantly improves the safety of the embodiment of the present application, significantly reduces the failure rate, and prolongs the service life.

[0047] In this embodiment, a first sensor is provided between the furnace opening machine 7 and the track 8, and the control device is connected to the first sensor. The first sensor is used to detect the movement data of the furnace opening machine 7 relative to the track 8. With the above design, the embodiment of the present application can control the movement distance of the power supply trolley based on the movement data of the furnace opening machine 7, so that the two maintain synchronous movement, which is not only easy to implement but also low in cost.

[0048] In this embodiment, the furnace opening machine 7 includes a base 71 and an arm 74. The base 71 is set on the track 8, and the arm 74 is slidably set on the base 71. The arm 74 is used to clamp the burn-through device 5. A second sensor is provided between the arm 74 and the base 71, and the second sensor is used to detect the movement data of the arm 74 relative to the base. The above design can further improve the movement accuracy of the power supply trolley, further prevent the entanglement or pulling of the busbar, and further improve the safety and stability of the present application.

[0049] In this embodiment, the power supply trolley 3 includes a body, a controller, and a driver. The controller and driver are coupled to each other, and the driver controls the movement distance of the body. The driver is a servo motor or a stepper motor. This design enables the power supply trolley 3 to exchange data with the control device, thereby achieving coordinated control between the power supply trolley 3, the furnace opening machine 7, and the boom 74, further improving safety. The use of a servo motor or a stepper motor for the driver significantly improves the precision of the travel distance of the power supply trolley 3, avoiding entanglement or pulling of the busbar due to errors.

[0050] In this embodiment, the power-on device also includes a buffer mechanism, which is arranged on the power-on slide 11 and connected to the power-taking trolley 3, for controlling the moving speed of the power-taking trolley 3 so that the length of the busbar 4 is adapted to the power-taking length of the burn-through device 5.

[0051] In this embodiment, the buffer mechanism includes a pulley assembly, a traction member, and a counterweight 2. The pulley assembly is located at one end of the upper power slide 11, away from the submerged arc furnace. One end of the traction member is connected to the power trolley 3, and the other end passes through the pulley assembly and connects to the counterweight 2. The buffer mechanism prevents the power trolley 3 from moving too fast and causing entanglement in the busbar 4. In addition, in emergency situations, such as emergency stops or power outages, the counterweight 2 can reset the power trolley 3, further preventing entanglement.

[0052] In this embodiment, the buffer mechanism further includes an anti-collision block 33 provided on the power-taking trolley 3 . The anti-collision block 33 is a flexible block protruding from the power-taking trolley 3 .

[0053] In this embodiment, the buffer mechanism also includes a limiting structure 14 provided on the upper power slide 11 for limiting the movement position of the power trolley 3 . When the power trolley 3 is in place, the anti-collision block 33 first contacts the limiting structure 14 .

[0054] In this embodiment, the control device is a single chip microcomputer, a programmable controller or a slave computer.

[0055] In this embodiment, the burner 5 is installed on the furnace opening machine 7, and a carbon rod 53 is installed on the burner 5.

[0056] In this embodiment, the burner 5 also includes a long support rod 56, a conical connector 55, a carbon rod clamp 54 and a power connection part 51. The conical connector 55 is arranged at one end of the long support rod 56, and the carbon rod clamp 54 is arranged at the other end of the long support rod 56. The conical connector 55 is connected to the furnace opening machine 7, the carbon rod 53 is clamped in the carbon rod clamp 54, and the power connection part 51 is connected to the busbar 4 and is electrically connected to the carbon rod 53.

[0057] In this embodiment, a first rack is provided on the track 8, and a first gear is provided on the furnace opening machine 7. The first gear is driven by a first motor and meshes with the first rack. In this embodiment, a second rack is provided on the upper power slide 11, and a second gear is provided on the power extraction trolley 3. The second gear is driven by a second motor and meshes with the second rack. In this embodiment, the first and second motors are linked to each other so that the movement position of the furnace opening machine 7 on the track 8 is correlated with the movement position of the power extraction trolley 3 on the upper power slide 11.

[0058] In this embodiment, the upper electric slide 11 is suspended in the air, for example, it can be supported by a support frame, and the copper bus 12 is suspended below the upper electric slide 11. In this embodiment, an insulating member 13 is provided between the copper bus 12 and the upper electric slide 11.

[0059] In this embodiment, the power supply trolley 3 consists of a wheel 31, a busbar connection copper shoe 32, a bumper 33, a copper busbar branch 34, a carbon brush 35, and a compression spring 36. The wheel 31 is suspended on the upper power rail 11. The compression spring 36 pushes upward to keep the carbon brush 35 in contact with the copper busbar 12. The copper busbar branch 34 is bolted to the busbar connection copper shoe 32. The busbar connection copper shoe 32 is welded to one end of the busbar 4, and the other end of the busbar 4 is connected to the power connection unit 51. The power supply trolley 3 draws power from the upper power rail 11 and transmits it to the burn-through device 5 through the busbar 4. The burn-through device 5 consists of a long support rod 56, a tapered connector 55, a carbon rod clamp 54, a carbon rod 53, and a power connection unit 51. A long support rod 56 serves as a support rod, with a tapered connector 55 at one end and a carbon rod clamp 54 at the other. A copper busbar 52 is positioned above the long support rod 56, connecting the power supply 51 to the carbon rod clamp 54. Carbon rods 53 are mounted within the carbon rod clamp 54. Copper shoe 32 is welded to busbar 4. Current flows through busbar 4, via copper busbar 52, and to carbon rod clamp 54. Current flows through carbon rod 53 when it contacts carbon rod clamp 54. The burner 5 is placed on the ground support 6. When the burn-through is working, the furnace opening machine 7 uses the rotary mechanism 72 to align the gripping device 75 with the center of the conical connecting sleeve 55 of the burn-through device 5 on the ground support 6. The gripping device 75 moves forward along the track of the large arm 74 to grab the burn-through device 5. The large arm 74 is tilted up and returned to the center through the pitching mechanism 73, so that the carbon rod 53 is aligned with the center of the furnace eye. The base 71 moves forward along the walking track 8. When the carbon rod 53 approaches the furnace eye, the power-on device is activated, and the copper bar 12 on the power-on slide 11 is energized. The base 71 continues to feed the burn-through device 5, so that the carbon rod 53 enters the furnace eye. The pitching and rotation actions are combined to make the carbon rod 53 draw a circle. According to the principle that electric current generates an arc through gas conduction, a high-temperature arc is used to open a channel in the furnace eye, completing the burn-through process. The base 71 retreats, the carbon rod 53 leaves the furnace eye, the power-on device is disconnected, and it returns along the original route, placing the burn-through device 5 on the ground support 6. The above processes can be set up as standardized processes to be completed automatically. The operator only needs to press the burn eye button in the control room, and subsequent actions can be completed automatically.

[0060] As can be seen from the above technical solution, the advantages and positive effects of the submerged arc furnace tapping equipment of the present invention are:

[0061] In this embodiment, the furnace opening machine 7 automatically powers on under the control of a control device and travels along a track 8 to perform the eye-burning operation, enabling unmanned operation at the furnace and reducing the risks of working at the furnace. Operators now operate from a console in the central control room, rather than the previously physically demanding, high-intensity, and high-risk tasks, significantly improving the working environment and reducing labor intensity. Furthermore, the automatic eye-burning equipment features an automatic positioning function, ensuring consistent eye-burning positions each time, minimizing damage to the furnace lining.

[0062] Those skilled in the art will appreciate that the specific structures and processes described in the above detailed embodiments are merely illustrative and non-limiting. Furthermore, those skilled in the art may combine the various technical features described above in various possible ways to create new technical solutions or make other modifications, all of which fall within the scope of the present invention.

Claims

1. A submerged arc furnace tapping device, characterized in that: include: Furnace opening device, power-on device and control device; The furnace opening device includes a track and a furnace opening machine, wherein the track extends along the furnace eye opening direction of the ore furnace and is aligned with the center of the opening direction; the furnace opening machine is arranged on the track and moves along the track, and the furnace opening machine selectively clamps the burner and melts the furnace eye through the burner; The power-on device includes a power-on slide, a power-taking trolley, and a busbar. The power-on slide is arranged parallel to the track and is located directly above the track. A power-taking trolley is movably arranged on the power-on slide. The power-taking trolley is electrically connected to the power-on slide and is electrically connected to the burn-through device through the busbar. The control device is connected to the furnace opening machine and the power-taking trolley, and is used to obtain the movement data of the burn-through device driven by the furnace opening machine, and control the movement distance of the power-taking trolley according to the movement data.

2. The submerged arc furnace tapping equipment according to claim 1, characterized in that: A first sensor is provided between the furnace opening machine and the track, the control device is connected to the first sensor, and the first sensor is used to detect movement data of the furnace opening machine relative to the track.

3. The submerged arc furnace tapping equipment according to claim 2, characterized in that: The furnace opening machine includes a base and a large arm, the base is arranged on the track, the large arm is slidably arranged on the base, the large arm is used to clamp the burn-through device, and a second sensor is arranged between the large arm and the base, and the second sensor is used to detect the movement data of the large arm relative to the base.

4. The submerged arc furnace tapping equipment according to claim 3, characterized in that: The power-collecting trolley includes a vehicle body, a controller and a driver. The controller is coupled to the driver and is used to control the moving distance of the vehicle body through the driver.

5. The submerged arc furnace tapping equipment according to claim 1, characterized in that: The power-on device also includes a buffer mechanism, which is arranged on the power-on slide and connected to the power-taking trolley, and is used to control the moving speed of the power-taking trolley so that the busbar length is adapted to the power-taking length of the burn-through device.

6. The submerged arc furnace tapping equipment according to claim 5, characterized in that: The buffer mechanism includes a pulley group, a traction member and a counterweight block. The pulley group is arranged at one end of the upper power slide and is located away from the electric arc furnace; one end of the traction member is connected to the power trolley, and the other end is connected to the counterweight block after passing through the pulley group.

7. The submerged arc furnace tapping equipment according to claim 5, characterized in that: The buffer mechanism also includes an anti-collision block provided on the power-taking trolley. The anti-collision block is a flexible block protruding from the power-taking trolley.

8. The submerged arc furnace tapping equipment according to claim 7, characterized in that: The buffer mechanism also includes a limiting structure provided on the upper power slide for limiting the moving position of the power-taking trolley. When the power-taking trolley is in place, the anti-collision block first contacts the limiting structure.

9. The submerged arc furnace tapping equipment according to any one of claims 1 to 8, characterized in that: The control device is a single chip microcomputer, a programmable controller or a slave computer.

10. The submerged arc furnace tapping equipment according to claim 1, characterized in that: The burn-through device is equipped with a carbon rod.

11. The submerged arc furnace tapping equipment according to claim 10, characterized in that: The burn-through device also includes a long support rod, a conical connector, a carbon rod clamp and an electrical connection part. The conical connector is arranged at one end of the long support rod, and the carbon rod clamp is arranged at the other end of the long support rod. The conical connector is connected to the furnace opening machine, and the carbon rod clamp is arranged in the carbon rod clamp. The electrical connection part is connected to the busbar and is electrically connected to the carbon rod.

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