A self-consumable carbon oxygen gun mechanical arm for steelmaking electric furnace door

Abstract

The present application relates to the technical field of metallurgical equipment, and in particular to a self-consumable carbon-oxygen gun mechanical arm for a steelmaking electric furnace door, comprising a rotating seat, a connecting support arm being arranged on the rotating seat, a support block being arranged at one end of the connecting support arm, and at least one supporting swing arm being arranged on the support block. The present invention drives a driving gear arranged on the base to rotate, and the rotating driving gear drives a hydraulic lifting column to rotate by meshing with a driven gear, thereby adjusting the position of the connecting support arm, and changing the height of the connecting support arm by moving the hydraulic lifting column. At the same time, the driving screw rod that is rotatably penetrated on the connecting support rod is driven to rotate, and the rotating driving screw rod is threadedly connected with a sliding connecting rod, so that the sliding connecting rod extends out of the connecting support rod, and the sliding connecting rod drives the support block to move together so that the carbon-oxygen spray gun can be moved to a precise position in the electric furnace, so as to achieve precise positioning of the carbon-oxygen gun to meet different steelmaking requirements.

Description

Technical Field

[0001] The present application relates to the technical field of metallurgical equipment, and in particular to a consumable furnace door carbon-oxygen gun mechanical arm for a steelmaking electric furnace. Background Art

[0002] In terms of scrap steel recycling and high-quality steel production, with the emphasis on sustainable development and resource recycling, electric arc furnace steelmaking technology has been favored for its efficient use of scrap steel and lower environmental impact. The electric arc furnace converts electrical energy into thermal energy, uses the electric arc generated by the electrode to heat and melt the charge, and then extracts high-quality molten steel.

[0003] In order to improve the efficiency and quality of the electric arc furnace steelmaking process, the oxygen blowing and carbon powder injection are generally precisely controlled by a robotic arm carbon-oxygen gun device, which optimizes the chemical reaction in the smelting process and thus improves the quality of the molten steel and production efficiency.

[0004] During the working process, the robotic arm accurately positions the carbon-oxygen gun to a specific area in the furnace, and promotes the oxidation and removal of impurities in the molten steel by blowing in oxygen and carbon powder. At the same time, the carbon content of the molten steel is adjusted by adding carbon powder.

[0005] The robot body is responsible for accurately moving the carbon-oxygen gun to the specified position, while the carbon-oxygen gun assembly is responsible for blowing oxygen and carbon powder into the furnace, and the control system ensures the automation and accuracy of the entire process, including temperature monitoring, position adjustment, flow control, etc.; such as a four-degree-of-freedom electric arc furnace door water-cooled carbon-oxygen gun robot device with publication number CN114480782B, which relates to the field of metallurgical equipment technology. The prior art includes a base, a swing unit, a rotary unit, a lifting unit, a cross arm and a pitch unit. The gun body is arranged on the rotary unit, and the swing unit and the lifting unit are both arranged above the base. The swing unit is connected to the rotary unit, and the lifting unit is connected to the rotary unit through the cross arm. The pitch unit is connected to the rotary unit and the gun body. The swing unit is used to realize the left and right swing of the gun body, and the rotary unit is used to realize the forward and backward movement of the gun body; the pitch unit is used to realize the pitch movement of the gun body; and the lifting unit is used to realize the lifting and lowering movement of the gun body.

[0006] However, the above-mentioned prior art still has some defects when it comes to electric arc furnace steelmaking:

[0007] 1. The above-mentioned prior art is connected to the swivel head through the other end of the cross arm, and the swivel head is connected to the movable bracket and the gun body. As the cross arm rotates, the gun body on the movable bracket also moves accordingly with the swivel head. The length of the cross arm is fixed, which means that the operating range of the manipulator is fixed, which may limit the operational flexibility of the gun body in the furnace, especially when it is necessary to cover a larger area or reach a specific position; for electric arc furnaces of different sizes or shapes, it may be necessary to manually adjust the position of the manipulator or use other auxiliary devices to adapt to different operating requirements.

[0008] 2. In the above-mentioned prior art, the gun body is arranged on the swivel head through a movable bracket. Since the swivel head is relatively fixed, the angle between the movable bracket and the swivel head changes with the extension and shortening of the pitch hydraulic cylinder, corresponding to the pitch movement of the gun body; that is, the gun body is fixed on the swivel head, which makes the extended length of the gun body on the swivel head constant, resulting in that when the gun body is operated in the electric arc furnace, the length extended into the electric arc furnace cannot be changed; in actual application, it is necessary to adjust the insertion depth of the gun body according to the change of the molten steel level or the specific smelting stage, thereby affecting the optimization of the smelting process.

[0009] In some cases, if the space inside the furnace is limited or there are obstructions, a fixed length lance may increase the risk of collision with other structures inside the furnace.

[0010] Based on this, and according to the above-mentioned viewpoints, the existing technology for electric arc furnace steelmaking still has room for improvement. Summary of the invention

[0011] In order to solve the above technical problems, the present application provides a consumable carbon-oxygen gun mechanical arm for a steelmaking electric furnace, which adopts the following technical solutions:

[0012] A consumable carbon oxygen gun mechanical arm for a steelmaking electric furnace door, comprising a rotating seat, a connecting support arm is arranged on the rotating seat, a supporting block is arranged at one end of the connecting support arm, and at least one supporting swing arm is arranged on the supporting block;

[0013] The support swing arm includes a support shaft rotatably installed on the support block, a support groove is opened at the lower end of the support shaft, a rotating bracket is rotatably installed in the support groove, an arc gear is installed on one side of the rotating bracket, and an adjustment gear meshing with the arc gear is rotatably installed in the support groove.

[0014] Preferably, the support swing arm further comprises a support bracket arranged at one end of the rotating support frame, the support bracket is provided with a sliding groove, and a sliding block is slidably arranged in the sliding groove.

[0015] Preferably, a sliding support plate is provided at one end of the sliding block away from the rotating support frame, and the sliding support plate is slidably connected to the sliding groove.

[0016] A gun stock bracket is slidably arranged on the sliding support plate, and a detachable carbon-oxygen spray gun is arranged on the gun stock bracket.

[0017] Preferably, a traction wheel is rotatably provided on the rotating support frame, a guide wheel located at one end of the sliding groove is rotatably provided on the rotating support frame, a traction rope is wound around the traction wheel, one end of the traction rope passes around the guide wheel, slides through the sliding block, and is connected to the butt support.

[0018] Preferably, a return spring is arranged between one end of the sliding block facing the rotating bracket and the supporting bracket, and an interference spring is arranged between the sliding block and the butt support bracket.

[0019] Preferably, the carbon oxygen spray gun comprises a sleeve arranged on the gun stock bracket, one end of the sleeve is slidably provided with a nozzle, and one end of the nozzle slides through the rotating support frame;

[0020] One end of the sleeve is connected to a delivery pipe, a sliding connecting pipe is slidably arranged in the sleeve, a conical stopper is arranged at one end of the sliding connecting pipe, a connecting spring is arranged between the sliding connecting pipe and the sleeve, and a plurality of connecting holes are opened circumferentially on the sliding connecting pipe.

[0021] Preferably, a clamping sleeve is arranged inside the sleeve, a plurality of clamping plates are arranged circumferentially on the clamping sleeve, and opposite sides of the plurality of clamping plates are all provided with inverted teeth;

[0022] A tightening sleeve is slidably provided on one side of the sleeve, a tightening groove corresponding to the clamping plate is provided on the tightening sleeve, a tightening inclined surface is provided on the tightening groove, and an adjusting ring threadedly connected to the tightening sleeve is rotatably provided on one end of the sleeve.

[0023] Preferably, the rotating seat comprises a base, and a hydraulic lifting column is rotatably arranged in the base;

[0024] The hydraulic lifting column is provided with a driven gear, and the base is provided with a driving gear meshing with the driven gear through a motor.

[0025] Preferably, the connecting support arm comprises a connecting support rod arranged at the telescopic end of the hydraulic lifting column, and a sliding connecting rod is slidably arranged in the connecting support rod;

[0026] A driving screw rod which is threadably connected with the sliding connecting rod is rotatably penetrated through the connecting supporting rod.

[0027] Preferably, a transmission gear is provided on the supporting shaft, and a rotating gear meshing with the transmission gear is provided on the supporting block.

[0028] In summary, the present application includes at least one of the following beneficial technical effects:

[0029] 1. The present invention drives the driving gear arranged on the base to rotate. The rotating driving gear drives the hydraulic lifting column to rotate by meshing with the driven gear, thereby adjusting the position of the connecting support arm. The height of the connecting support arm is changed by moving the hydraulic lifting column, ensuring that the carbon-oxygen spray gun can be accurately positioned at the furnace door of the electric furnace. At the same time, the driving screw rod that is rotatably arranged on the connecting support rod is driven to rotate. The rotating driving screw rod is threadedly connected with the sliding connecting rod, so that the sliding connecting rod extends out of the connecting support rod. The sliding connecting rod drives the support block to move together, so that the carbon-oxygen spray gun can be moved to a precise position in the electric furnace, so as to achieve precise positioning of the carbon-oxygen spray gun to meet different steelmaking requirements.

[0030] 2. The present invention pulls the butt bracket through the contraction of the traction rope, so that the butt bracket drives the carbon-oxygen spray gun detachably arranged on the butt bracket, and the moving butt bracket compresses the resistance spring arranged between the sliding block and the butt bracket, and the sliding block drives the sliding support plate to move together, and compresses the return spring arranged between one end of the sliding block toward the rotating support bracket and the support bracket, so that the carbon-oxygen spray gun moves into the electric furnace, and the contraction length of the traction rope determines the depth of the carbon-oxygen spray gun extending into the electric furnace. By accurately controlling the recovery length of the traction rope, the position of the carbon-oxygen spray gun in the electric furnace can be accurately controlled.

[0031] 3. The carbon oxygen spray gun of the present invention rotates the adjusting ring, and the rotating adjusting ring will make the abutting sleeve move out of the casing through the threaded connection, so that the abutting groove can carry the clamping plate, and the clamping plate will loosen the abutment on the nozzle, and then the nozzle is pulled out of the casing, and then the new nozzle is passed through the rotating support and the abutting sleeve slidably arranged on one side of the casing, so that one side of the nozzle hits the sliding connecting pipe slidably arranged in the casing, and the sliding connecting pipe is connected to the nozzle. By rotating the adjusting ring rotatably arranged at one end of the casing, the abutting sleeve is moved into the casing, and the abutting inclined surface provided on the abutting groove will hit the clamping plate, so that multiple clamping plates are deformed and aggregated inward, so that the inverted teeth arranged on the clamping plate are pressed on the nozzle, and the nozzle can be quickly replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of the present invention.

[0033] Figure 2 It is a structural schematic diagram of the support swing arm of the present invention.

[0034] Figure 3 It is a partial structural schematic diagram of the supporting swing arm of the present invention.

[0035] Figure 4 It is a cross-sectional view of the support swing arm of the present invention.

[0036] Figure 5 The present invention Figure 4 A partial enlarged view of point A.

[0037] Figure 6 It is a structural schematic diagram of the carbon oxygen spray gun of the present invention.

[0038] Figure 7 It is a cross-sectional view of the carbon oxygen spray gun of the present invention.

[0039] Figure 8 It is a partial structural schematic diagram of the fixed carbon oxygen spray gun of the present invention.

[0040] Fig. 9 It is a structural schematic diagram of the fixed rotating seat of the present invention.

[0041] Fig.10 It is a structural schematic diagram of the connecting brace arm of the present invention.

[0042] Description of reference numerals: 1, rotating seat; 11, base; 12, hydraulic lifting column; 13, driven gear; 14, driving gear; 2, connecting support arm; 21, connecting support rod; 22, sliding connecting rod; 23, driving screw; 3, supporting block; 31, transmission gear; 32, rotating gear; 4, supporting swing arm; 41, supporting shaft; 42, supporting rotating groove; 43, rotating support bracket; 44, arc gear; 441, adjusting gear; 45, supporting bracket; 451, sliding groove; 46, sliding block; 461. Sliding support plate; 47. Gun stock bracket; 48. Traction wheel; 481. Guide wheel; 482. Traction rope; 49. Return spring; 491. Resistance spring; 5. Carbon oxygen spray gun; 51. Sleeve; 52. Nozzle; 53. Delivery pipe; 54. Sliding connecting pipe; 541. Conical stopper; 542. Connecting hole; 55. Connecting spring; 56. Clamping sleeve; 561. Clamping plate; 562. Inverted teeth; 57. Tightening sleeve; 571. Tightening groove; 58. Tightening slope; 59. Adjusting ring. DETAILED DESCRIPTION

[0043] The following is combined with Figures 1 to 10 This application is described in further detail.

[0044] The embodiment of the present application discloses a consumable carbon-oxygen gun robot arm for a steelmaking electric furnace door. The robot arm structure enables the carbon-oxygen gun to be accurately positioned at the furnace door, and then operated by changing the angle of the carbon-oxygen gun. The carbon-oxygen gun can also be replaced, thereby optimizing the smelting effect and improving efficiency.

[0045] Example:

[0046] Reference Figure 1 and Figure 2 A consumable carbon-oxygen gun mechanical arm for a steelmaking electric furnace door comprises a rotating seat 1 on which a connecting support arm 2 is arranged.

[0047] During the steelmaking process, the connecting arm 2 is driven to rise to the height corresponding to the electric furnace through the rotating seat 1, and the connecting arm 2 is driven to rotate. The connecting arm 2 will drive the supporting block 3 set at one end of the connecting arm 2 to rotate around the rotating seat 1, so that the supporting swing arm 4 will accurately position the detachable carbon-oxygen spray gun 5 set on the supporting swing arm 4 to the furnace door of the electric furnace, and then at least one supporting swing arm 4 set on the supporting block 3 will send the carbon-oxygen spray gun 5 into a specific area in the electric furnace (two supporting swing arms 4 are symmetrically set in the figure), and oxygen and carbon powder will be blown into the carbon-oxygen spray gun 5 to promote the oxidation and removal of impurities in the molten steel. At the same time, the carbon content of the molten steel is adjusted by adding carbon powder. This process not only accelerates the smelting speed, but also improves the purity and uniformity of the molten steel.

[0048] At the same time, the supporting swing arm 4 can be adjusted at different angles, and swung to enable the carbon-oxygen spray gun 5 to blow oxygen and carbon powder into the electric furnace at different angles, so that the carbon-oxygen spray gun 5 can adapt to different smelting requirements and furnace conditions. In addition, the supporting swing arm 4 can also send the carbon-oxygen spray gun 5 into different depths in the electric furnace to achieve oxygen blowing and carbon addition at different levels of molten steel.

[0049] Reference Figure 2 , Figure 3 , Figure 4 and Figure 5 Specifically, the support swing arm 4 includes a support shaft 41 rotatably penetrated on the support block 3, a support groove 42 is opened at the lower end of the support shaft 41, a rotating bracket 43 is rotatably arranged in the supporting groove 42, and an arc gear 44 is arranged on one side of the rotating bracket 43.

[0050] After the support swing arm 4 accurately positions the carbon-oxygen spray gun 5 at the furnace door of the electric furnace, the existing motor driving technology is used to drive the adjusting gear 441 rotatably arranged in the support rotating groove 42 to rotate. The rotating adjusting gear 441 engages with the arc gear 44, forcing the arc gear 44 to drive the rotating support frame 43 to rotate in the support rotating groove 42. The rotating support frame 43 will drive the supporting bracket 45 arranged at one end thereof to rotate together, thereby adjusting the angle of the carbon-oxygen spray gun 5.

[0051] Among them, a sliding groove 451 is opened on the support bracket 45, and a sliding block 46 is slidably arranged in the sliding groove 451. A sliding support plate 461 is arranged at one end of the sliding block 46 away from the rotating support bracket 43, and the sliding support plate 461 is slidably connected to the sliding groove 451. A butt support 47 is slidably arranged on the sliding support plate 461, and a guide wheel 481 located at one end of the sliding groove 451 is rotatably arranged on the rotating support bracket 43.

[0052] After the angle adjustment of the carbon-oxygen spray gun 5 is completed, the traction wheel 48 provided on the rotating support frame 43 is driven to rotate by the existing motor driving technology. The rotating traction wheel 48 will continuously recycle the traction rope 482 wound on the traction wheel 48, so that the traction rope 482 bypasses the guide wheel 481 and is wound around the traction wheel 48, and the guide wheel 481 is rotated under the action of friction.

[0053] One end of the traction rope 482 passes around the guide wheel 481 and then slides through the sliding block 46 to be connected to the butt bracket 47. The contracted traction rope 482 will pull the butt bracket 47, so that the butt bracket 47 drives the carbon-oxygen spray gun 5 detachably arranged on the butt bracket 47 to move the spray gun into the electric furnace.

[0054] Reference Figure 4 and Figure 5 At the same time, the moving butt bracket 47 will compress the resistance spring 491 set between the sliding block 46 and the butt bracket 47, so that the resistance spring 491 pushes the sliding block 46 to move together. At this time, the sliding block 46 will drive the sliding support plate 461 to move together, and compress the return spring 49 set between one end of the sliding block 46 toward the rotating support bracket 43 and the support bracket 45, so that the carbon-oxygen spray gun 5 moves into the electric furnace, and the contraction length of the traction rope 482 determines the depth of the carbon-oxygen spray gun 5 extending into the electric furnace. By accurately controlling the recovery length of the traction rope 482, the position of the carbon-oxygen spray gun 5 in the electric furnace can be accurately controlled.

[0055] After the carbon-oxygen spray gun 5 completes blowing oxygen and adding carbon, the existing motor driving technology is used to drive the traction wheel 48 to reverse, and the rotating traction wheel 48 will release the traction rope 482. As the traction rope 482 is released, the compressed return spring 49 and the resistance spring 491 will be gradually released at any time when the traction rope 482 is released, and the return spring 49 will push the sliding block 46, so that the sliding block 46 drives the sliding support plate 461 to move, and the resistance spring 491 will push the butt support bracket 47 to move on the sliding support plate 461, so that the butt support bracket 47 drives the carbon-oxygen spray gun 5 to retract from the electric furnace until the carbon-oxygen spray gun 5 completes retraction, and the return spring 49 and the resistance spring 491 are released to restore the butt support bracket 47 to its initial state, and at this time, the driving of the traction wheel 48 to rotate is stopped.

[0056] Reference Figure 6 , Figure 7 and Figure 8Specifically, the carbon-oxygen spray gun 5 includes a sleeve 51 arranged on the gun stock bracket 47, one end of the sleeve 51 is slidably provided with a detachable nozzle 52, one end of the sleeve 51 is connected to a delivery pipe 53, one end of the nozzle 52 slides through the rotating bracket 43, and the nozzle 52 is used to extend into the electric furnace to spray oxygen and carbon powder into the electric furnace to achieve precise oxygen blowing and carbon addition. Since the high-temperature nozzle 52 in the electric furnace is easily damaged, the detachable nozzle 52 design greatly simplifies the maintenance process, so that the nozzle 52 can be quickly replaced when it is damaged, reducing the impact on production.

[0057] When installing the nozzle 52 , first pass the nozzle 52 through the rotating support frame 43 and the abutting sleeve 57 slidably arranged on one side of the sleeve 51 , so that one side of the nozzle 52 abuts against the sliding connecting pipe 54 slidably arranged in the sleeve 51 , and the sliding connecting pipe 54 is now connected to the nozzle 52 .

[0058] Then, the nozzle 52 is pushed to move the sliding connecting tube 54 toward the side of the delivery tube 53. The sliding connecting tube 54 will drive the conical stopper 541 provided at one end of the sliding connecting tube 54 to move together, and compress the connecting spring 55 provided between the sliding connecting tube 54 and the sleeve 51, so that one end of the sliding connecting tube 54 will enter into the delivery tube 53. At this time, a plurality of connecting holes 542 opened circumferentially on the sliding connecting tube 54 will connect the delivery tube 53 and the sliding connecting tube 54.

[0059] A clamping sleeve 56 is arranged in the sleeve 51 , and a plurality of clamping plates 561 are evenly arranged circumferentially on the clamping sleeve 56 . Inverted teeth 562 are arranged on opposite sides of the plurality of clamping plates 561 . A tightening groove 571 corresponding to the clamping plates 561 is opened on the tightening sleeve 57 .

[0060] Then, by rotating the adjusting ring 59 set at one end of the rotating sleeve 51, the adjusting ring 59 will be connected with the tightening sleeve 57 through a thread, so that the tightening sleeve 57 moves into the sleeve 51. At this time, the tightening inclined surface 58 provided on the tightening groove 571 will abut the clamping plate 561, so that the multiple clamping plates 561 are deformed and aggregated inward, so that the inverted teeth 562 provided on the clamping plate 561 are pressed against the nozzle 52, ensuring the communication between the delivery pipe 53, the sliding connecting pipe 54 and the nozzle 52.

[0061] When the traction wheel 48 rotates to shrink the traction rope 482 , the butt support 47 drives the sleeve 51 and the delivery pipe 53 to move together, so that one end of the nozzle 52 gradually extends out from the rotating support 43 along with the horizontal movement of the traction rope 482 .

[0062] When blowing oxygen and carbon powder into the electric furnace, the delivery pipe 53 will guide the oxygen and carbon powder through the conical surface of the conical stopper 541, and then pass through the hole into the sliding connecting pipe 54, and then enter the nozzle 52 from the sliding connecting pipe 54 and then be ejected through one end of the nozzle 52 into the electric furnace, thereby promoting the oxidation and removal of impurities in the molten steel and adjusting the carbon content of the molten steel.

[0063] When disassembling the nozzle 52, first rotate the adjusting ring 59. The rotating adjusting ring 59 will move the locking sleeve 57 to the outside of the sleeve 51 through the threaded connection, so that the locking groove 571 can drive the clamping plate 561. The clamping plate 561 will loosen the locking of the nozzle 52, and then the nozzle 52 can be pulled out of the sleeve 51. At this time, the compressed connecting spring 55 will push the sliding connecting tube 54, so that the sliding connecting tube 54 drives the connecting hole 542 and the conical block 541 into the sleeve 51. At this time, the conical block 541 will block the sleeve 51, blocking the connection between the sliding connecting tube 54 and the delivery pipe 53.

[0064] Reference Fig. 9 and Fig.10 Specifically, the rotating seat 1 includes a base 11 , a hydraulic lifting column 12 is rotatably arranged in the base 11 , and a driven gear 13 is arranged on the hydraulic lifting column 12 .

[0065] During the steelmaking process, the driving gear 14 provided on the base 11 is driven to rotate by the motor, and the rotating driving gear 14 drives the hydraulic lifting column 12 to rotate by meshing with the driven gear 13, thereby adjusting the position of the connecting support arm 2.

[0066] The height of the connecting support arm 2 is changed by moving the hydraulic lifting column 12 to ensure that the carbon oxygen spray gun 5 can be accurately positioned at the furnace door of the electric furnace.

[0067] At the same time, the connecting support arm 2 includes a connecting support rod 21 arranged at the telescopic end of the hydraulic lifting column 12, and a sliding connecting rod 22 is slidably arranged in the connecting support rod 21; the support block 3 is arranged at one end of the sliding connecting rod 22. The connecting support rod 21 can drive the sliding connecting rod 22 to follow the rotating seat 1 to rise and rotate to the height corresponding to the electric furnace.

[0068] The existing motor driving technology is used to drive the driving screw 23 that is rotatably installed on the connecting support rod 21 to rotate. The rotating driving screw 23 will be threadedly connected with the sliding connecting rod 22, so that the sliding connecting rod 22 extends out of the connecting support rod 21. The sliding connecting rod 22 will drive the supporting block 3 to move together so that the carbon-oxygen spray gun 5 can be moved to a precise position in the electric furnace, so as to achieve precise positioning of the carbon-oxygen spray gun to meet different steelmaking requirements.

[0069] Among them, a transmission gear 31 is arranged on the supporting shaft 41, and the rotating gear 32 arranged on the supporting block 3 is driven to rotate through the existing motor driving technology. The rotating transmission gear 31 will drive the supporting shaft 41 to rotate by meshing with the transmission gear 31, and the rotating bracket 43 is driven to rotate through the supporting shaft 41, thereby changing the horizontal injection angle of the carbon-oxygen spray gun 5.

[0070] At the same time, the figure shows two symmetrically arranged support swing arms 4, and the rotating gears 32 are arranged on opposite sides of the two transmission gears 31 and mesh with each other. One of the rotating gears 32 is driven to rotate through the existing motor driving technology, and the rotating rotating gear 32 will drive the other rotating gear 32 to rotate together through meshing. The two rotating gears 32 will simultaneously drive the transmission gears 31 on both sides to rotate, so as to drive the support shaft 41 to rotate.

[0071] The two transmission gears 31 drive the two support shafts 41 to rotate in opposite directions, so that the two support shafts 41 rotate toward opposite sides or opposite sides at the same time.

[0072] The implementation principle of the present invention is:

[0073] (1): During the steelmaking process, the driving gear 14 provided on the base 11 is driven to rotate. The rotating driving gear 14 will drive the hydraulic lifting column 12 to rotate by meshing with the driven gear 13, thereby adjusting the position of the connecting support arm 2. The height of the connecting support arm 2 is changed by moving the hydraulic lifting column 12 to ensure that the carbon oxygen spray gun 5 can be accurately positioned at the furnace door of the electric furnace.

[0074] (2): By driving the driving screw 23 rotatably arranged on the connecting support rod 21 to rotate, the rotating driving screw 23 will be threadedly connected with the sliding connecting rod 22, so that the sliding connecting rod 22 extends out of the connecting support rod 21, and the sliding connecting rod 22 will drive the supporting block 3 to move together so that the carbon oxygen spray gun 5 can be moved to a precise position in the electric furnace, so as to achieve precise positioning of the carbon oxygen spray gun to meet different steelmaking requirements.

[0075] (3): The rotating transmission gear 31 drives the support shaft 41 to rotate by meshing with the transmission gear 31 , and drives the rotating bracket 43 to rotate through the support shaft 41 , thereby changing the horizontal injection angle of the carbon-oxygen spray gun 5 .

[0076] (4): By driving the adjusting gear 441 to rotate, the rotating adjusting gear 441 meshes with the arc gear 44, forcing the arc gear 44 to drive the rotating support 43 to rotate in the supporting groove 42. The rotating support 43 will drive the supporting bracket 45 set at one end thereof to rotate together, thereby adjusting the angle of the carbon oxygen spray gun 5.

[0077] (5): After the angle adjustment of the carbon-oxygen spray gun 5 is completed, the traction wheel 48 provided on the rotating support frame 43 is driven to rotate by the existing motor driving technology. The rotating traction wheel 48 will continuously retract the traction rope 482 wound on the traction wheel 48. The retracted traction rope 482 will pull the butt bracket 47, so that the butt bracket 47 drives the carbon-oxygen spray gun 5 detachably provided on the butt bracket 47, so that the spray gun moves into the electric furnace.

[0078] (6): At the same time, the moving butt support 47 will compress the resistance spring 491 provided between the sliding block 46 and the butt support 47, and the sliding block 46 will drive the sliding support plate 461 to move together, and compress the return spring 49 provided between one end of the sliding block 46 facing the rotating support 43 and the support bracket 45, so that the carbon-oxygen spray gun 5 moves into the electric furnace, and the contracted length of the traction rope 482 determines the depth of the carbon-oxygen spray gun 5 extending into the electric furnace. By accurately controlling the recovery length of the traction rope 482, the position of the carbon-oxygen spray gun 5 in the electric furnace can be accurately controlled.

[0079] (7): When blowing oxygen and carbon powder into the electric furnace, the delivery pipe 53 will guide the oxygen and carbon powder through the conical surface of the conical stopper 541, and then pass through the hole into the sliding connecting pipe 54, and then enter the nozzle 52 from the sliding connecting pipe 54 and then be ejected into the electric furnace through one end of the nozzle 52, thereby promoting the oxidation and removal of impurities in the molten steel and adjusting the carbon content of the molten steel.

[0080] (8): After the carbon-oxygen spray gun 5 has completed blowing oxygen and adding carbon, the existing motor driving technology is used to drive the traction wheel 48 to reverse, the rotating traction wheel 48 will release the traction rope 482, the return spring 49 will push the sliding block 46, so that the sliding block 46 drives the sliding support plate 461 to move, and the resistance spring 491 will push the gun stock bracket 47 to move on the sliding support plate 461, so that the gun stock bracket 47 drives the carbon-oxygen spray gun 5 to retract from the electric furnace until the carbon-oxygen spray gun 5 has completed retraction to the initial state, at which time the driving of the traction wheel 48 to rotate is stopped.

[0081] (9): When replacing the nozzle 52, first disassemble the original nozzle 52, then rotate the adjusting ring 59 first, and the rotating adjusting ring 59 will cause the tightening sleeve 57 to move outward from the sleeve 51 through the threaded connection, so that the tightening groove 571 can drive the clamping plate 561, and the clamping plate 561 will loosen the tightening of the nozzle 52, and then the nozzle 52 is pulled out of the sleeve 51. At this time, the compressed connecting spring 55 will push the sliding connecting tube 54, so that the sliding connecting tube 54 drives the connecting hole 542 and the conical stopper 541 into the sleeve 51, and the conical stopper 541 will block the sleeve 51, blocking the connection between the sliding connecting tube 54 and the delivery tube 53.

[0082] (10): When installing a new nozzle 52, first pass the nozzle 52 through the rotating support frame 43 and the abutment sleeve 57 slidably arranged on one side of the sleeve 51, so that one side of the nozzle 52 abuts against the sliding connecting pipe 54 slidably arranged in the sleeve 51. At this time, the sliding connecting pipe 54 is connected to the nozzle 52.

[0083] (11): Then, the nozzle 52 is pushed to move the sliding connecting tube 54 toward the delivery tube 53. The sliding connecting tube 54 will drive the conical stopper 541 provided at one end of the sliding connecting tube 54 to move together, and compress the connecting spring 55 provided between the sliding connecting tube 54 and the sleeve 51, so that one end of the sliding connecting tube 54 will enter into the delivery tube 53. At this time, a plurality of connecting holes 542 opened circumferentially on the sliding connecting tube 54 will connect the delivery tube 53 and the sliding connecting tube 54.

[0084] (12): Then, by rotating the adjusting ring 59 set at one end of the sleeve 51, the adjusting ring 59 will be connected to the locking sleeve 57 through a thread, so that the locking sleeve 57 moves into the sleeve 51. At this time, the locking inclined surface 58 provided on the locking groove 571 will abut the clamping plate 561, causing the multiple clamping plates 561 to deform and aggregate inward, so that the inverted teeth 562 provided on the clamping plate 561 are pressed against the nozzle 52, ensuring the connection between the delivery pipe 53, the sliding connecting pipe 54 and the nozzle 52.

[0085] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A consumable carbon oxygen gun mechanical arm for a steelmaking electric furnace door, comprising a rotating seat (1), on which a connecting support arm (2) is arranged, characterized in that: A support block (3) is provided at one end of the connecting support arm (2), and at least one support swing arm (4) is provided on the support block (3); The support swing arm (4) comprises a support shaft (41) rotatably penetrated on the support block (3); a support groove (42) is provided at the lower end of the support shaft (41); a rotation support frame (43) is rotatably arranged in the support groove (42); an arc gear (44) is arranged on one side of the rotation support frame (43); and an adjustment gear (441) meshing with the arc gear (44) is rotatably arranged in the support groove (42); The support swing arm (4) further comprises a support bracket (45) arranged at one end of the rotating support frame (43), the support bracket (45) being provided with a sliding groove (451), and a sliding block (46) being slidably arranged in the sliding groove (451); A sliding support plate (461) is provided at one end of the sliding block (46) away from the rotating support frame (43), and the sliding support plate (461) is slidably connected to the sliding groove (451), a gun stock support (47) is slidably provided on the sliding support plate (461), and a detachable carbon oxygen spray gun (5) is provided on the gun stock support (47); A traction wheel (48) is rotatably provided on the rotating support frame (43), a guide wheel (481) is rotatably provided on the rotating support frame (43) and is located at one end of the sliding groove (451), a traction rope (482) is wound around the traction wheel (48), and one end of the traction rope (482) passes around the guide wheel (481), slides through the sliding block (46), and is connected to the butt support (47).

2. The consumable carbon oxygen gun mechanical arm for steelmaking electric furnace door according to claim 1, characterized in that: A return spring (49) is arranged between one end of the sliding block (46) facing the rotating support frame (43) and the supporting bracket (45), and a resisting spring (491) is arranged between the sliding block (46) and the gun stock bracket (47).

3. The consumable carbon oxygen gun mechanical arm for steelmaking electric furnace door according to claim 1 is characterized in that: The carbon-oxygen spray gun (5) comprises a sleeve (51) arranged on a gun stock bracket (47), a nozzle (52) being slidably arranged at one end of the sleeve (51), and one end of the nozzle (52) slidably passes through a rotating support bracket (43); One end of the sleeve (51) is connected to a delivery pipe (53), a sliding connecting pipe (54) is slidably arranged in the sleeve (51), a conical stopper (541) is arranged at one end of the sliding connecting pipe (54), a connecting spring (55) is arranged between the sliding connecting pipe (54) and the sleeve (51), and a plurality of communication holes (542) are circumferentially formed on the sliding connecting pipe (54).

4. The consumable carbon oxygen gun mechanical arm for steelmaking electric furnace door according to claim 3 is characterized in that: A clamping sleeve (56) is arranged inside the sleeve (51), a plurality of clamping plates (561) are arranged circumferentially on the clamping sleeve (56), and opposite sides of the plurality of clamping plates (561) are all provided with inverted teeth (562); A tightening sleeve (57) is slidably provided on one side of the sleeve (51), a tightening groove (571) corresponding to the clamping plate (561) is provided on the tightening sleeve (57), a tightening inclined surface (58) is provided on the tightening groove (571), and an adjusting ring (59) threadedly connected to the tightening sleeve (57) is rotatably provided on one end of the sleeve (51).

5. The consumable carbon oxygen gun mechanical arm for steelmaking electric furnace door according to claim 1, characterized in that: The rotating seat (1) comprises a base (11), and a hydraulic lifting column (12) is rotatably arranged inside the base (11); The hydraulic lifting column (12) is provided with a driven gear (13), and the base (11) is provided with a driving gear (14) meshing with the driven gear (13) via a motor.

6. The consumable carbon oxygen gun mechanical arm for steelmaking electric furnace door according to claim 4, characterized in that: The connecting support arm (2) comprises a connecting support rod (21) arranged at the telescopic end of the hydraulic lifting column (12), and a sliding connecting rod (22) is slidably arranged inside the connecting support rod (21); A driving screw rod (23) is rotatably provided on the connecting support rod (21) and is threadably connected to the sliding connecting rod (22).

7. The consumable carbon-oxygen gun mechanical arm for steelmaking electric furnace door according to claim 1, characterized in that: The supporting rotating shaft (41) is provided with a transmission gear (31), and the supporting block (3) is provided with a rotating gear (32) meshing with the transmission gear (31).

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