Efficient submerged arc furnace hearth auxiliary unplugging device

Abstract

The utility model discloses an efficient submerged arc furnace hearth auxiliary unplugging device, and particularly relates to the technical field of iron alloy production, the efficient submerged arc furnace hearth auxiliary unplugging device comprises an operation box, the inner wall of the operation box is slidably connected with a lifting plate, the top of the lifting plate is fixedly connected with two hollow frames, and the top of the hollow frame located on the left side is provided with a hearth plugging mechanism; and a hole opening assembly is arranged at the top of the hollow frame located on the right side, an adjusting mechanism is arranged in the operation box, and a replacement assembly is arranged above the lifting plate. According to the efficient auxiliary unblocking device for the furnace eye of the submerged arc furnace, the opening assembly is arranged, specifically, the motor is started to drive the moving box to move towards the back face, and when the moving box moves, a drill bit can rotate while impacting a blocking object; by means of the device, large damage to refractory materials around the furnace eye can be avoided during hole opening, the service life of the furnace eye is prolonged, the sealing performance of the furnace eye is improved, the relatively stable hole opening efficiency can be kept, and the hole opening efficiency of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ferroalloy production, in particular to a highly efficient auxiliary plugging device for a furnace eye of a submerged arc furnace. Background Art

[0002] In the field of preparing ferroalloys in an ore-fired furnace, if you want to obtain the molten and high-temperature liquid ferroalloy in the ore-fired furnace, you need to open the furnace eye of the ore-fired furnace (i.e., open the eye), and the high-temperature liquid ferroalloy in the ore-fired furnace will flow out of the ore-fired furnace through the furnace eye; after all the liquid ferroalloy in the ore-fired furnace has flowed out, use gunpowder mud to block the furnace eye (i.e., block the eye), and now the work of opening and blocking the eye of the ore-fired furnace is completed.

[0003] In the patent document of an efficient auxiliary plugging device for the furnace eye of an ore-heating furnace with the announcement number CN220853157U, a support box is included, the upper end of the support box is provided with a bottom plate, a support frame is fixed on the bottom plate, a plugging mechanism is fixed on the support frame, a moving rod is provided on the bottom plate, a poking rod is fixed on one end of the moving rod, an adjustment mechanism is provided in the support box, and a moving assembly is provided on the support box. The device is provided with an adjustment mechanism. When it is necessary to open and plug the furnace eyes at different heights on the ore-heating furnace, the plugging mechanism and the poking rod can be moved and adjusted to a suitable height to open and plug the furnace eyes of the ore-heating furnace through the adjustment mechanism, thereby improving the adaptability of the ore-heating furnace opening and plugging device and the production efficiency of ferroalloys; however, the above patent document still has the following defects during implementation:

[0004] When opening an eye in an electric arc furnace, the device mainly relies on the instantaneous impact force to make the poking rod move linearly in the direction of the furnace eye, and uses the sharp part of the poking rod head to hit the blockage at the furnace eye to open the eye. When opening the eye, it will not only cause great damage to the refractory materials around the furnace eye, affecting the service life and sealing of the furnace eye, but also with the increase of the depth of the furnace eye, the transmission efficiency of the impact force will decrease, which will gradually reduce the eye opening efficiency. Therefore, we propose an efficient auxiliary plugging device for the furnace eye of an electric arc furnace to solve the above problems. Utility Model Content

[0005] The main purpose of the utility model is to provide a high-efficiency auxiliary plugging device for the furnace eye of an electric arc furnace, which can effectively solve the above problems.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A highly efficient auxiliary plugging device for an electric arc furnace eye, comprising an operating box, a lifting plate slidably connected to the inner wall of the operating box, two hollow frames fixedly connected to the top of the lifting plate, a plugging mechanism being arranged on the top of the hollow frame on the left, an eye opening assembly being arranged on the top of the hollow frame on the right, an adjusting mechanism being arranged inside the operating box, and a replacement assembly being arranged above the lifting plate.

[0008] Preferably, the eye-opening assembly includes a threaded rod, and the front and back outer surfaces of the threaded rod are rotatably connected to the inner wall of the hollow frame on the same side. A motor is fixedly connected to the front of the hollow frame on the right side, and the output end of the motor is fixedly connected to the front of the threaded rod.

[0009] Preferably, a movable box is threadedly connected to the outer surface of the threaded rod, the bottom of the movable box is in contact with the top of the hollow frame on the same side, and the inner wall of the movable box is rotatably connected to a rotating shaft 1.

[0010] Preferably, a gear is fixedly connected to a right end of the rotating shaft, and a gear bar is fixedly connected to the right end of the hollow frame located on the right side, and the top of the gear bar is meshed with the bottom of the gear.

[0011] Preferably, the outer surface of the rotating shaft 1 is fixedly connected with a bevel gear 1, the inner wall of the moving box is rotatably connected with the rotating shaft 2, the back side of the rotating shaft 2 is fixedly connected with a bevel gear 2, and the back side of the bevel gear 2 is meshedly connected with the left side of the bevel gear 1.

[0012] Preferably, the replacement component comprises a drill bit, the inner wall of the front side of the drill bit is slidably connected to the second outer surface of the rotating shaft, and the second outer surface of the rotating shaft is provided with threads.

[0013] Preferably, a rotating block is threadedly connected to the outer surface of the rotating shaft 2, a groove 1 is provided at the top and the bottom of the rotating shaft 2, and a rotating rod is rotatably connected to the inner walls of the two grooves 1.

[0014] Preferably, the ends of the two rotating rods that are away from each other are both arranged with inclined surfaces, the ends of the two rotating rods that are close to each other are fixedly connected with springs, the ends of the two springs that are close to each other are fixedly connected to an inner wall of the groove on the same side, two limiting holes are provided on the inner wall of the drill bit, and the ends of the back sides of the two rotating rods that are away from each other are in contact with the inner walls of the limiting holes on the same side.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. The utility model sets an eye-opening component, specifically, turns on the motor to drive the moving box to move to the back side. The moving box will drive the drill bit to rotate while moving, so that the drill bit can rotate while hitting the blockage. This can not only avoid causing greater damage to the refractory materials around the furnace eye during eye opening, thereby improving the service life and sealing of the furnace eye, but also maintain a relatively stable eye-opening efficiency, thereby improving the eye-opening efficiency of the device.

[0017] 2. The utility model sets a replacement component, specifically, first rotating the rotating block clockwise to drive the rotating block to move to the back, so that it releases the limit on the drill bit, so that the drill bit can be quickly removed for replacement. Not only can the drill bit be replaced quickly, reducing the downtime of the equipment and improving the working efficiency of the device, but also can avoid the situation where when the drill bit is worn and unsuitable for the current eye-opening work, the other parts of the equipment are not subjected to excessive load due to failure to replace it in time, which reduces the service life of the plugging device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a front sectional structural diagram of the operating box of the utility model;

[0020] Figure 3 This is a schematic diagram of the overall structure of the mobile box of the utility model;

[0021] Figure 4 This is a schematic diagram of the overall structure of the transfer block of the utility model;

[0022] Figure 5 This is a schematic diagram of the right side cross-sectional structure of the second rotating shaft of the utility model;

[0023] Figure 6 It is a schematic diagram of the right side cross-sectional structure of the hollow frame of the utility model.

[0024] In the figure: 1. operating box; 11. lifting plate; 12. hollow frame; 13. eye plugging mechanism; 2. adjusting mechanism; 3. eye opening assembly; 31. threaded rod; 32. motor; 33. moving box; 331. rotating shaft 1; 332. gear; 333. bevel gear 1; 334. bevel gear 2; 335. rotating shaft 2; 34. gear bar; 4. replacement assembly; 41. drill bit; 42. rotating block; 43. rotating rod; 44. limiting hole; 45. spring. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] Embodiment 1: Figure 1-6 As shown, a high-efficiency auxiliary plugging device for an electric arc furnace eye comprises an operating box 1, the inner wall of which is slidably connected with a lifting plate 11, the top of which is fixedly connected with two hollow frames 12, a plugging mechanism 13 is arranged on the top of the hollow frame 12 on the left, an opening assembly 3 is arranged on the top of the hollow frame 12 on the right, an adjusting mechanism 2 is arranged inside the operating box 1, and a replacement assembly 4 is arranged above the lifting plate 11.

[0027] The adjustment mechanism 2 includes a fixed frame, a hydraulic cylinder and a telescopic rod. When in use, the hydraulic cylinder is opened to drive the telescopic rod to extend. During the extension process, the telescopic rod will push the lifting plate to move in the inner wall of the operating box so that it can reach the height of the furnace eye.

[0028] The above-mentioned plugging mechanism 13 includes a servo motor, a second threaded rod, a moving plate, a barrel, a pusher hydraulic rod and a pusher head. The servo motor is turned on to drive the second threaded rod to rotate so that it can drive the barrel to move into the furnace eye through the moving plate, and the gun mud is filled into the barrel through the mud inlet. The cylinder pushes the push plate to squeeze the gun mud in the mud box into the barrel, and then the pusher hydraulic rod is started. The telescopic end of the pusher hydraulic rod pushes the pusher head to move forward in the barrel. As the pusher head moves, it applies pressure to the gun mud in the barrel and pushes the gun mud out of the discharge port of the barrel. Finally, the pushed gun mud enters the furnace eye of the ore-fired furnace and fills the furnace eye under the action of pressure.

[0029] Specifically, in order to avoid damage to the refractory materials around the furnace eye during opening, refer to Figure 3 In this embodiment, the eye-opening component 3 includes a threaded rod 31, and the front and back outer surfaces of the threaded rod 31 are rotatably connected to the inner wall of the hollow frame 12 on the same side. A motor 32 is fixedly connected to the front of the hollow frame 12 on the right side, and the output end of the motor 32 is fixedly connected to the front of the threaded rod 31.

[0030] For further information, see Figure 3 In this embodiment, the outer surface of the threaded rod 31 is threadedly connected to a moving box 33, the bottom of the moving box 33 contacts the top of the hollow frame 12 on the same side, and the inner wall of the moving box 33 is rotatably connected to a rotating shaft 331.

[0031] For further information, see Figure 3 In this embodiment, the right end of the rotating shaft 331 is fixedly connected with a gear 332, and the right end of the hollow frame 12 located on the right side is fixedly connected with a gear bar 34, and the top of the gear bar 34 is meshed with the bottom of the gear 332.

[0032] During the implementation process, the motor 32 is turned on to drive the threaded rod 31 to rotate. When the threaded rod 31 rotates, it will drive the movable box 33 to move to the back side, so that it can drive one end of the drill bit 41 on the surface to contact the blockage at the furnace eye. When the movable box 33 moves, it will drive the gear 332 to rotate at the top of the gear bar 34. When the gear 332 rotates, it will drive the rotating shaft 331 to rotate in the inner wall of the movable box 33.

[0033] For further information, see Figure 3In this embodiment, the outer surface of the rotating shaft 1 331 is fixedly connected with a bevel gear 1 333, the inner wall of the moving box 33 is rotatably connected with the rotating shaft 2 335, the back side of the rotating shaft 2 335 is fixedly connected with a bevel gear 2 334, and the back side of the bevel gear 2 334 is meshed with the left side of the bevel gear 1 333.

[0034] During implementation, when the rotating shaft 1 331 rotates, the bevel gear 1 333 can drive the bevel gear 2 334 to rotate. When the bevel gear 2 334 rotates, it will drive the rotating shaft 2 335 to rotate, so that the drill bit 41 can rotate while hitting the blockage. This not only avoids causing greater damage to the refractory materials around the furnace eye during eye opening, thereby improving the service life and sealing of the furnace eye, but also maintains a relatively stable eye opening efficiency, thereby improving the eye opening efficiency of the device.

[0035] Embodiment 2: This embodiment is provided with a replacement component based on embodiment 1.

[0036] Specifically, in order to achieve the purpose of quickly replacing the drill bit, refer to Figure 4 and Figure 5 In this embodiment, the replacement component 4 includes a drill bit 41, and the inner wall of the front side of the drill bit 41 is slidably connected to the outer surface of the second rotating shaft 335, and the outer surface of the second rotating shaft 335 is provided with threads.

[0037] For further information, see Figure 4 In this embodiment, the outer surface of the second rotating shaft 335 is threadedly connected with a rotating block 42, and the top and top of the second rotating shaft 335 are both provided with grooves 1, and the inner walls of the two grooves 1 are rotatably connected with rotating rods 43.

[0038] For further information, see Figure 5 In this embodiment, the ends of the two rotating rods 43 that are away from each other are both arranged with inclined surfaces, and the ends of the two rotating rods 43 that are close to each other are fixedly connected with springs 45, and the ends of the two springs 45 that are close to each other are fixedly connected to an inner wall of the groove on the same side. Two limiting holes 44 are provided on the inner wall of the drill bit 41, and the ends of the back sides of the two rotating rods 43 that are away from each other are in contact with the inner wall of the limiting hole 44 on the same side.

[0039] During the implementation process, when the drill bit 41 is worn out due to long-term work, the rotating block 42 is first rotated clockwise to drive the rotating block 42 to move toward the back. During the movement of the rotating block 42, it will contact the end of the rotating rod 43 away from the second rotating shaft 335. Since the end of the rotating rod 43 away from the second rotating shaft 335 is set as an inclined surface, when the rotating block 42 moves to the back, it will drive the rotating rod 43 to rotate so that the protrusion on the back can leave the corresponding limiting hole 44. During the rotation of the rotating rod 43, the spring 45 will be squeezed to deform it. When the rotating block 42 moves to a certain position, the limit on the drill bit 41 will be released so that it can quickly The drill bit 41 is removed and replaced, and after the replaced drill bit 41 is reinserted into one end of the rotating shaft 335, the rotating block 42 is rotated counterclockwise to drive it to move toward the front. The deformed spring 45 will push the rotating rod 43 to rotate due to the elastic force generated so that the protrusion on its top can be re-engaged with the limiting hole 44 to limit the drill bit 41. Not only can the drill bit 41 be replaced quickly, the downtime of the equipment is reduced, and the working efficiency of the device is improved, but also the situation that when the drill bit is worn and unsuitable for the current eye-opening work, other parts of the equipment are not subjected to excessive load due to failure to replace it in time, which reduces the service life of the plugging device.

[0040] The working principle of the utility model is as follows: when it is necessary to open or block the eye of the ore-heating furnace, the operation box 1 is first moved to the position where the eye needs to be opened, and the height of the lifting plate 11 is adjusted by the adjustment mechanism 2, so that the eye-blocking mechanism 13 and the eye-opening assembly 3 on the top of the ore-heating furnace can be opened or blocked, and the motor 32 is turned on to drive the threaded rod 31 to rotate. When the threaded rod 31 rotates, it will drive the moving box 33 to move to the back side, so that it can drive one end of the drill bit 41 sleeved on the surface to contact the blockage at the furnace eye, and when the moving box 33 moves, it will drive the gear 332 to move on the gear bar 34 When the top rotates, the gear 332 rotates, which drives the shaft 1 331 to rotate in the inner wall of the moving box 33. When the shaft 1 331 rotates, it can drive the bevel gear 2 334 to rotate through the bevel gear 1 333. When the bevel gear 2 334 rotates, it drives the shaft 2 335 to rotate, so that the drill bit 41 can rotate while hitting the blockage, which can not only avoid causing greater damage to the refractory materials around the furnace eye during eye opening, but also improve the service life and sealing of the furnace eye, and can maintain a relatively stable eye opening efficiency, thereby improving the eye opening efficiency of the device. When worn, first rotate the rotating block 42 clockwise to drive the rotating block 42 to move toward the back. During the movement of the rotating block 42, it will contact the end of the rotating rod 43 away from the second rotating shaft 335. Since the end of the rotating rod 43 away from the second rotating shaft 335 is set as an inclined surface, when the rotating block 42 moves to the back, it will drive the rotating rod 43 to rotate so that the protrusion on the back can leave the corresponding limiting hole 44. During the rotation of the rotating rod 43, the spring 45 will be squeezed to deform it. When the rotating block 42 moves to a certain position, the limit on the drill bit 41 will be released, so that the drill bit 41 can be quickly removed and inserted. The drill bit 41 can be replaced by reinserting it into one end of the rotating shaft 335, and the rotating block 42 is rotated counterclockwise to drive it to move toward the front. The deformed spring 45 will push the rotating rod 43 to rotate due to the elastic force generated so that the protrusion on its top can be re-engaged with the limiting hole 44 to limit the drill bit 41. Not only can the drill bit 41 be replaced quickly, the downtime of the equipment is reduced, and the working efficiency of the device is improved, but also the situation that when the drill bit is worn and unsuitable for the current eye-opening work, the failure to replace it in time will cause other parts of the equipment to be subjected to excessive load and reduce the service life of the plugging device can be avoided.

[0041] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An efficient auxiliary plugging device for a furnace eye of an electric arc furnace, comprising an operating box (1), wherein a lifting plate (11) is slidably connected to the inner wall of the operating box (1), two hollow frames (12) are fixedly connected to the top of the lifting plate (11), and a plugging mechanism (13) is arranged on the top of the hollow frame (12) on the left side, characterized in that: An eye opening assembly (3) is arranged on the top of the hollow frame (12) located on the right side, an adjustment mechanism (2) is arranged inside the operation box (1), and a replacement assembly (4) is arranged above the lifting plate (11); The eye opening assembly (3) comprises a threaded rod (31), the front and back outer surfaces of the threaded rod (31) being rotatably connected to the inner wall of the hollow frame (12) on the same side, a motor (32) being fixedly connected to the front of the hollow frame (12) on the right side, and an output end of the motor (32) being fixedly connected to the front of the threaded rod (31).

2. The efficient auxiliary plugging device for a submerged arc furnace according to claim 1 is characterized in that: The outer surface of the threaded rod (31) is threadedly connected to a moving box (33), the bottom of the moving box (33) is in contact with the top of the hollow frame (12) on the same side, and the inner wall of the moving box (33) is rotatably connected to a rotating shaft 1 (331).

3. The efficient auxiliary plugging device for a furnace eye of a submerged arc furnace according to claim 2 is characterized in that: The right end of the rotating shaft 1 (331) is fixedly connected to a gear (332), and the right end of the hollow frame (12) located on the right side is fixedly connected to a gear bar (34), and the top of the gear bar (34) is meshingly connected to the bottom of the gear (332).

4. The efficient auxiliary plugging device for a submerged arc furnace according to claim 3 is characterized in that: The outer surface of the rotating shaft 1 (331) is fixedly connected to a bevel gear 1 (333), the inner wall of the moving box (33) is rotatably connected to a rotating shaft 2 (335), the back surface of the rotating shaft 2 (335) is fixedly connected to a bevel gear 2 (334), and the back surface of the bevel gear 2 (334) is meshingly connected to the left side of the bevel gear 1 (333).

5. The efficient auxiliary plugging device for a furnace eye of a submerged arc furnace according to claim 4 is characterized in that: The replacement component (4) comprises a drill bit (41), the front inner wall of the drill bit (41) being slidably connected to the outer surface of the second rotating shaft (335), and the outer surface of the second rotating shaft (335) is provided with a thread.

6. The efficient auxiliary plugging device for a submerged arc furnace according to claim 5 is characterized in that: The outer surface of the second rotating shaft (335) is threadedly connected to a rotating block (42), the top and the bottom of the second rotating shaft (335) are both provided with a groove one, and the inner walls of the two grooves one are rotatably connected to a rotating rod (43).

7. The efficient auxiliary plugging device for a furnace eye of a submerged arc furnace according to claim 6 is characterized in that: The ends of the two rotating rods (43) that are away from each other are both arranged with inclined surfaces, the ends of the two rotating rods (43) that are close to each other are both fixedly connected to springs (45), the ends of the two springs (45) that are close to each other are both fixedly connected to an inner wall of the groove on the same side, the inner wall of the drill bit (41) is provided with two limiting holes (44), and the ends of the backs of the two rotating rods (43) that are away from each other are both in contact with the inner walls of the limiting holes (44) on the same side.

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