Emergency tapping drainage manipulator for EBT tapping hole

Abstract

The invention relates to the technical field of steelmaking drainage, in particular to an EBT tapping hole emergency tapping drainage manipulator which comprises a base, a rotary table is rotatably arranged on the base, a lifting seat is arranged on the rotary table, a large arm is slidably arranged on the lifting seat, and a swing arm is rotatably arranged at the end of the large arm; the swing arm comprises a swing frame rotationally arranged on the lower side of the end of the large arm, a supporting rod is rotationally arranged at one end of the swing frame, a catheter is arranged on the supporting rod, and a detachable drainage tube is arranged at one end of the catheter. The oxygen is conveyed to the drainage pipe through the guide pipe, the drainage pipe ignites the ladle filler sand in the tapping channel through high temperature generated by oxidation reaction of the oxygen sprayed out of the oxygen and the ladle filler sand at the tapping hole of the electric furnace, and the molten steel flows out along the tapping hole along with burnout of the ladle filler sand in the tapping hole, so that the emergency treatment measure that the tapping channel is opened again is taken. The blocking problem can be rapidly solved under the condition that the continuous casting rhythm is not affected, and the smelting time is prevented from being too long.

Description

Technical Field

[0001] The present application relates to the technical field of steelmaking drainage, and in particular to an EBT taphole emergency hole opening and drainage manipulator. Background Art

[0002] The EBT taphole is a core component of the eccentric bottom tapping (EBT) system of an electric arc furnace. Located off-center at the bottom of the furnace, it serves as the critical channel for molten steel to flow from the furnace into the ladle. Its structure typically consists of a tapping channel constructed of refractory materials and a supporting sliding plate opening and closing mechanism, which controls the opening and closing of the taphole. During the normal steelmaking process, the EBT taphole plays a crucial role in guiding the smooth flow of molten steel and preventing slag from entering. It is a key component in achieving slag-free tapping and improving molten steel purity.

[0003] In actual production, before the start of electric furnace smelting, the slide opening and closing mechanism is closed, and the tapping channel is filled with drainage sand to prevent the molten steel from burning the slide. Utilizing its high-temperature resistance and sintering properties, the molten steel pressure breaks through the sintered layer during tapping, enabling automatic pouring. If the channel is not opened urgently, the molten steel will not be able to flow smoothly, potentially causing smelting to be interrupted.

[0004] The drainage sand can flow out with the pressure of the molten steel before sintering, and forms a protective layer after sintering, effectively isolating the molten steel from contacting the refractory material, avoiding the erosion of the refractory material, and utilizing the high-temperature melting blockage produced by the oxidation reaction between oxygen and the blockage to reopen the steel outlet channel as an emergency treatment measure. For example, the continuous casting ladle drainage sand removal device and method with application number CN202311843391.9 relates to the field of continuous casting production technology. The existing technology includes: a base, a rotary device and a rotary sand receiving device; the bottom end of the base is fixedly connected to the fixing part of the working position; a rotary connecting part is provided at the top of the base; the rotary device includes a rotary tower rotatably connected to the top of the base through the rotary connecting part and a rotary tower driving mechanism connected to the rotary tower; the rotary sand receiving device includes a rotary arm driving mechanism provided on the rotary tower, a rotary arm connected to the driving end of the rotary arm driving mechanism, and a sand receiving plate connected to the end of the rotary arm.

[0005] However, the above existing technology still has some defects when it comes to tapping outlet drainage: In existing technology, when drainage sand enters the sand receiving container through the long nozzle, it relies primarily on the natural flow and temperature of the molten steel to break through the sintered layer at the taphole. However, after long-term high-temperature sintering, the sintered layer at the taphole gradually densifies, forming a stable high-melting-point composite structure (e.g., a eutectic product of magnesia, silicon carbide, and steel slag). This structure significantly improves the mechanical strength and corrosion resistance of the sintered layer.

[0006] When the molten steel pressure and temperature are insufficient to sustainably break down the sintered layer, the inner wall of the channel gradually shrinks due to the accumulation of the sintered layer, increasing the resistance to molten steel flow and causing a gradual decrease in tapping speed or even the inability to open the channel. Simultaneously, the molten steel's prolonged residence time at the taphole causes a temperature drop. When the temperature falls below the liquidus, the molten steel's viscosity increases, further exacerbating channel blockage and forming a vicious cycle. This ultimately affects the stability of the tundish casting temperature, leading to an increase in the rate of surface defects in the ingot, and even causing casting interruptions or the inability to tap.

[0007] Based on this, and according to the above viewpoints, there is still room for improvement in the existing technology for the method of draining the steel outlet. Summary of the Invention

[0008] In order to solve the above technical problems, the present application provides an EBT taphole emergency opening and drainage robot, which adopts the following technical solutions: An EBT taphole emergency opening and drainage manipulator comprises a base, a turntable rotatably provided on the base, a lifting seat provided on the turntable, a large arm slidably provided on the lifting seat, and a swing arm rotatably provided at the end of the large arm; The swing arm comprises a swing frame rotatably arranged at the lower side of the upper arm end, a support rod rotatably arranged at one end of the swing frame, a conduit is arranged on the support rod, and a detachable drainage tube is arranged at one end of the conduit.

[0009] Preferably, a flow restrictor is provided on the catheter; The flow restrictor includes a connecting pipe provided on the support rod, an air outlet pipe connected to the guide tube is provided on one side of the connecting pipe, and an air inlet pipe communicating with the connecting pipe is provided on the other side of the connecting pipe; A piston is slidably arranged in the air intake pipe, and a return spring is arranged between one end of the piston facing the air intake pipe and the connecting pipe.

[0010] Preferably, a limit plate is slidably provided in the connecting tube, a limit ring is provided between the limit plate and the piston, and a return spring is located between the limit plate and the piston and passes through the middle of the limit ring.

[0011] Preferably, an adjusting screw that rotates and passes through the connecting pipe is rotatably provided on the limiting ring, and the adjusting screw is threadedly connected to the limiting plate.

[0012] Preferably, a limit rod is rotatably provided on the piston, and one end of the limit rod rotates and slides through the limit plate and the connecting pipe; The limiting rod is provided with a threaded section which is threadedly connected to the connecting pipe.

[0013] Preferably, the drainage tube includes a horizontal tube that is detachably provided at one end of the catheter, and a vertical tube is provided at the end of the horizontal tube. The vertical tubes are relatively perpendicular to the horizontal tube and are interconnected to form a T-shape.

[0014] Preferably, a connecting strut is provided at the lower end of the supporting rod, and a limiting clamp is symmetrically provided at the end of the connecting strut, and a clamping groove is formed between the two limiting clamps; A limiting support rod located in the clamping groove is provided on the transverse tube.

[0015] Preferably, a flow divider is provided between the transverse tube and the conduit; The flow dividing member includes a dividing strip provided in the horizontal pipe, the dividing strip dividing the vertical pipe into an upper channel and a lower channel; A thickened section corresponding to the horizontal pipe is provided on one side of the conduit, a joint is rotatably provided in the thickened section, and a through hole corresponding to the upper channel or the lower channel is opened in the joint.

[0016] Preferably, an arc-shaped groove is provided on the thickened section, and a shift block connected to the joint is slidably provided in the arc-shaped groove.

[0017] Preferably, an adjustment ring connected to the shift block is rotatably provided on the thickened section.

[0018] In summary, this application includes at least one of the following beneficial technical effects: 1. The present invention delivers oxygen to the drainage pipe through a conduit, and the drainage pipe sprays the oxygen to react with the blockage to produce high-temperature melted blockage, thereby reopening the steel tapping channel as an emergency treatment measure. This can quickly solve the blockage problem without affecting the continuous casting rhythm, avoiding greater economic losses caused by casting interruption due to blockage of the steel tapping port.

[0019] 2. The present invention adjusts the oxygen pressure by rotating the adjusting screw, which is threadedly connected to the limit plate, forcing the limit plate to move in the connecting tube, thereby changing the elastic force of the return spring. Only when the oxygen accumulates enough pressure in the connecting tube to push the return spring can the piston open the outlet pipe, thereby achieving control of the oxygen pressure.

[0020] 3. The present invention drives the adjusting ring to rotate, which drives the shift block to move in the arc groove. The shift block drives the joint to connect the through hole with the lower channel. At this time, oxygen enters the lower channel after passing through the through hole and is then ejected from the other end of the vertical pipe, thereby increasing the service life of the drainage tube. At the same time, the joint or shift block can be replaced separately without stopping the machine, which shortens maintenance time compared to the traditional integral structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention.

[0022] Figure 2 It is a structural diagram of the base, turntable and lifting seat of the present invention.

[0023] Figure 3 It is a cross-sectional view of the lifting seat of the present invention.

[0024] Figure 4 It is a structural schematic diagram of the upper arm and the swing arm of the present invention.

[0025] Figure 5 It is a schematic diagram of the structure between the swing arm and the drainage tube of the present invention.

[0026] Figure 6 Schematic diagram of the structure of the current limiter of the present invention.

[0027] Figure 7 1 is a cross-sectional view of the flow restrictor of the present invention.

[0028] Figure 8 It is a schematic diagram of the structure between the diverter and the drainage tube of the present invention.

[0029] Figure 9 It is a cross-sectional view of the drainage tube of the present invention.

[0030] Figure 10 This invention Figure 9 A partial enlarged view of point A.

[0031] Figure 11 It is a structural schematic diagram of the diverter of the present invention.

[0032] Figure 12 It is a cross-sectional view of the diverter of the present invention.

[0033] Figure 13 This invention Figure 12 A partial enlarged view of point B.

[0034] Figure 14 It is a cross-sectional view of the connector of the present invention.

[0035] Explanation of the accompanying reference numerals: 1. base; 2. turntable; 3. lifting seat; 4. upper arm; 5. swing arm; 51. swing frame; 52. support rod; 53. catheter; 6. drainage tube; 61. horizontal tube; 62. vertical tube; 63. connecting support rod; 64. limiting splint; 65. clamping groove; 66. limiting support rod; 7. flow restrictor; 71. connecting pipe; 72. exhaust pipe; 73. intake pipe; 74. piston; 75. return spring; 76. limiting plate; 77. limiting ring; 78. adjusting screw; 79. limiting rod; 791. threaded section; 8. diverter; 81. dividing strip; 82. upper channel; 83. lower channel; 84. thickened section; 85. joint; 86. through hole; 87. arc groove; 88. shift block; 89. adjusting ring. DETAILED DESCRIPTION

[0036] The following is combined with Figures 1 to 14 This application is described in further detail.

[0037] The embodiment of the present application discloses an EBT steel outlet emergency hole opening and drainage robot, which can adjust the reset spring preload according to the characteristics of different blockages, flexibly adapt to various working conditions, optimize oxygen utilization, reduce energy waste and lower production costs.

[0038] Example 1: During casting, special drainage sand is filled into the taphole channel before steel is tapped. Leveraging its high-temperature resistance and sintering properties, the sand allows the molten steel pressure to break through the sintered layer during tapping, enabling automatic pouring. Before sintering, the drainage sand flows out with the molten steel pressure. After sintering, it forms a protective layer that effectively isolates the molten steel from contact with the refractory material, preventing refractory corrosion. The high temperature generated by the oxidation reaction of oxygen with the obstruction melts the obstruction, thus clearing the taphole. This is an emergency treatment measure.

[0039] Reference Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, an EBT steel outlet emergency hole opening and drainage robot includes a base 1, a turntable 2 is rotatably provided on the base 1, and the turntable 2 is driven to rotate by a motor, and the turntable 2 will drive the lifting seat 3 provided thereon to rotate together, and a large arm 4 is slidably provided on the lifting seat 3, and the large arm 4 is driven to move up and down on the lifting seat 3 by the lifting equipment in the lifting seat 3, and a swing arm 5 is rotatably provided at the end of the large arm 4; the movement of the large arm 4 will drive the swing arm 5, and at the same time, the swing arm 5 is driven to rotate on the large arm 4 by the motor, so that the angle of the swing arm 5 can be changed.

[0040] Among them, the swing arm 5 includes a swing frame 51 rotatably arranged at the lower side of the end of the upper arm 4, and a support rod 52 is rotatably arranged at one end of the swing frame 51. A conduit 53 is arranged on the support rod 52, and a detachable drainage tube 6 is arranged at one end of the conduit 53.

[0041] When draining the steel outlet, the turntable 2 drives the lifting seat 3 to rotate, so that the upper arm 4 faces the steel outlet. The upper arm 4 will drive the swing frame 51 set on the lower side of its end, so that the support rod 52 set at one end of the swing frame 51 drives the drainage pipe 6 to move to the bottom of the steel outlet. Then the lifting seat 3 drives the upper arm 4 to move upward, so that the drainage pipe 6 is close to the steel outlet.

[0042] The conduit 53 is connected to the oxygen supply equipment, and the oxygen is transported to the drainage pipe 6 through the conduit 53. The drainage pipe 6 sprays the oxygen, and the oxygen reacts with the blockage to produce a high-temperature melting blockage, thereby reopening the steel-outlet channel as an emergency treatment measure. The blockage problem can be quickly solved without affecting the continuous casting rhythm, avoiding greater economic losses caused by casting interruption due to blockage of the steel outlet.

[0043] In detail, when driving the drainage pipe 6 close to the steel outlet, first, the turntable 2 rotates around the vertical axis of the base 1 under the drive of the motor, driving the lifting seat 3 rigidly connected thereto to rotate synchronously, so that the upper arm 4 on the lifting seat 3 gradually moves toward the steel outlet. During this process, the drainage pipe 6 rotates synchronously with the upper arm 4 in the horizontal plane, and initially achieves horizontal alignment with the steel outlet.

[0044] After the boom 4 is aligned with the steel outlet, the lifting seat 3 starts the built-in chain sprocket transmission mechanism, and the motor drives the active sprocket to rotate, and the active sprocket drives the driven sprocket to rotate through the chain. The driven sprocket is rigidly connected to the vertically arranged lead screw or guide rail slider, thereby driving the boom 4 to slide upward smoothly along the vertical guide rail of the lifting seat 3. The swing frame 51 at the end of the boom 4 rises synchronously with the boom 4, and drives the conduit 53 and the drainage pipe 6 detachably connected to one end of the conduit 53 to rise vertically through the support rod 52. The meshing characteristics of the chain sprocket transmission ensure that the boom 4 can be raised and lowered without slipping, and the vertical distance between the drainage pipe 6 and the steel outlet is accurately reduced.

[0045] During the ascent, the swing frame 51, driven by a motor, rotates around the horizontal pin at the end of the boom 4. Simultaneously, the support rod 52 can fine-tune its angle around the pin at the end of the swing frame 51. These two elements work together to adjust the position of the guide tube 53 and the drainage tube 6, ensuring that the upper end of the vertical tube 62 remains parallel to the tapping port blockage surface and that the air jet is precisely aligned with the center of the blockage. Ultimately, when the upper end of the vertical tube 62 of the drainage tube 6 is clear of the tapping port blockage surface, the chain sprocket drive mechanism stops, and the swing frame 51 and support rod 52 stop adjusting their angles, completing the entire movement of the drainage tube 6 approaching the tapping port and awaiting oxygen injection.

[0046] Among them, when driving the drainage pipe 6 to swing as a whole, the turntable 2 serves as the core power source for horizontal swinging. Driven by the motor, it rotates continuously or intermittently around the vertical axis of the base 1, driving the lifting seat 3, the big arm 4, the swing arm 5 and the drainage pipe 6 to swing over a large range in the horizontal plane, which can realize cross-furnace base (such as swinging from the steel outlet of furnace A to the steel outlet of furnace B) or large-distance position switching.

[0047] To prevent the drainage pipe 6 from colliding with the ground and equipment during the swinging process, the chain sprocket transmission mechanism built into the lifting seat 3 is started synchronously, and the motor drives the chain to drive the arm 4 to rise and fall by controlling the forward and reverse rotation and speed of the active sprocket. The rigid transmission of the chain ensures that the lifting action responds quickly, and accurately assists in adjusting the vertical height of the drainage pipe 6 to ensure a smooth swinging path; at the same time, the swing frame 51 rotates around the horizontal pin shaft at the end of the arm 4 under the drive of the motor, driving the support rod 52, the guide tube 53 and the drainage pipe 6 to swing in a medium range in the vertical plane, which can cover the blockage positions at different heights of the steel outlet.

[0048] In addition, when the drainage tube 6 is retracted after the drainage is completed, first, the chain sprocket transmission mechanism built into the lifting seat 3 runs in reverse, the motor drives the active sprocket to reverse, and the chain drives the driven sprocket and the arm 4 to slide downward along the guide rail of the lifting seat 3. The swing frame 51 and the support rod 52 at the end of the arm 4 drop vertically synchronously with the arm 4, driving the guide tube 53 and the drainage tube 6 to quickly move away from the high-temperature area of ​​the steel outlet to avoid damage to the drainage tube 6 caused by high temperature.

[0049] After the drainage pipe 6 leaves the high-temperature zone, the swing frame 51 rotates in the opposite direction around the pin shaft at the end of the arm 4 under the drive of the motor, driving the support rod 52, the guide tube 53 and the drainage pipe 6 to swing downward in the vertical plane, further increasing the horizontal distance between the drainage pipe 6 and the steel outlet to prevent molten steel from splashing and scalding; finally, the turntable 2 starts and rotates in the opposite direction around the vertical axis of the base 1, driving the lifting seat 3, the arm 4, the swing arm 5 and the drainage pipe 6 to rotate synchronously, and rotating the drainage pipe 6 from below the steel outlet to the waiting position on the side of the manipulator.

[0050] Finally, when the drainage tube 6 is rotated to the quick gun-changing position, the turntable 2 rotates around the vertical axis of the base 1 driven by the motor, driving the lifting seat 3, the upper arm 4, the swing arm 5 and the drainage tube 6 to rotate synchronously in the horizontal plane, so that the axis of the drainage tube 6 is gradually aligned with the preset gun-changing position.

[0051] During the rotation process, the chain sprocket transmission mechanism built into the lifting seat 3 operates, and the motor drives the arm 4 to rise and fall by controlling the transmission stroke of the chain, so that the vertical height of the drainage tube 6 matches the height of the gun-changing station, which is convenient for subsequent disassembly operations; when the drainage tube 6 is horizontally aligned with the gun-changing station, the oxygen supply is temporarily closed, and the operator can disassemble the drainage tube 6 and install a new drainage tube to achieve quick gun changing.

[0052] Reference Figure 5 、 Figure 6 and Figure 7 As shown, a flow restrictor 7 is provided on the conduit 53. The flow restrictor 7 can control the flow rate and pressure of oxygen to ensure that the oxidation reaction proceeds efficiently and safely.

[0053] Specifically, the flow restrictor 7 includes a connecting pipe 71 provided on the support rod 52 , an air outlet pipe 72 connected to the guide tube 53 is provided on one side of the connecting pipe 71 , and an air inlet pipe 73 communicating with the connecting pipe 71 is provided on the other side of the connecting pipe 71 .

[0054] Oxygen enters through the air inlet pipe 73, and then enters the air outlet pipe 72 through the connecting pipe 71. The air outlet pipe 72 is connected to the conduit 53. Oxygen enters the conduit 53 through the air inlet pipe 73, and is then ejected from the drainage pipe 6 to react with the blockage to produce an oxidation reaction, thereby generating high temperature to melt the blockage and open the steel outlet.

[0055] During this process, after the oxygen enters the connecting pipe 71 from the intake pipe 73, it pushes the piston 74 slidingly arranged in the intake pipe 73, causing the piston 74 to move toward the outlet pipe 72 and compressing the return spring 75 arranged between the piston 74 and the connecting pipe 71. The return spring 75 is located at the end of the piston 74 facing the intake pipe 73. Until the piston 74 moves to the position of the outlet pipe 72, the oxygen in the connecting pipe 71 will pass through the outlet pipe 72 and enter the conduit 53.

[0056] Oxygen enters the connecting tube 71 and pushes the piston 74 to compress the return spring 75, so that the piston 74 opens the outlet pipe 72. The oxygen pressure needs to push the piston 74 to open the outlet pipe 72, thereby controlling the oxygen pressure.

[0057] A limit plate 76 is slidably provided in the connecting tube 71 , a limit ring 77 is provided between the limit plate 76 and the piston 74 , and a return spring 75 is located between the limit plate 76 and the piston 74 and passes through the middle of the limit ring 77 .

[0058] By rotating the adjusting screw 78 rotatably arranged on the limit ring 77, the adjusting screw 78 rotates and passes through the connecting pipe 71 and is threadedly connected to the limit plate 76. The threaded connection with the limit plate 76 forces the limit plate 76 to move in the connecting pipe 71, thereby changing the elastic force of the return spring 75, thereby adjusting the size of the oxygen pressure; that is, when the adjusting screw 78 is rotated and threadedly connected to drive the limit plate 76 close to the piston 74, the return spring 75 is compressed. At this time, the oxygen needs a greater pressure to push the piston 74; conversely, when the adjusting screw 78 is rotated and threadedly connected to drive the limit plate 76 away from the piston 74, the return spring 75 is released. At this time, the force of the oxygen pushing the piston 74 will be correspondingly reduced.

[0059] A limiting rod 79 is rotatably provided on the piston 74 . One end of the limiting rod 79 rotates and slides through the limiting plate 76 and the connecting pipe 71 . A threaded section 791 is provided on the limiting rod 79 for threaded connection with the connecting pipe 71 .

[0060] When the piston 74 needs to open the air outlet pipe 72 and keep it stable, the limit rod 79 can be pulled, and the limit rod 79 drives the piston 74 to compress the return spring 75, and then the limit rod 79 is rotated to make the threaded section 791 threadedly connected to the connecting pipe 71, thereby limiting the piston 74. At this time, the limit rod 79 is threadedly connected to the connecting pipe 71, so that the piston 74 is in a state of always opening the air outlet pipe 72.

[0061] On this basis, by rotating the limit rod 79, the limit rod 79 can also drive the piston 74 to change the size of the open outlet pipe 72, thereby accurately controlling the oxygen release rate, effectively preventing safety hazards caused by oxygen pressure fluctuations, and ensuring that the oxidation reaction proceeds at optimal efficiency, significantly improving the efficiency of clearing blockages.

[0062] Reference Figure 8 As shown, in addition, the drainage tube 6 includes a horizontal tube 61 that is detachably arranged at one end of the catheter 53, and a vertical tube 62 is arranged at the end of the horizontal tube 61. The vertical tube 62 is relatively perpendicular to the horizontal tube 61 and is connected to each other in a T shape; the lower end of the support rod 52 is provided with a connecting strut 63, and the end of the connecting strut 63 is symmetrically provided with a limiting splint 64, and a clamping groove 65 is formed between the two limiting splints 64, and a limiting strut 66 located in the clamping groove 65 is provided on the horizontal tube 61.

[0063] The limiting strut 66 can limit the rotation of the transverse tube 61, so that one end of the vertical tube 62 is vertically upward, and at the same time it is convenient for disassembly and replacement of the drainage tube 6 formed by the transverse tube 61 and the vertical tube 62. When disassembling, the transverse tube 61 is pulled out of the conduit 53, and at the same time the transverse tube 61 will drive the limiting strut 66 to protrude from the clamping groove 65; when installing, the limiting strut 66 is inserted into the clamping groove 65, and at the same time the transverse tube 61 is inserted into the conduit 53 to complete the connection.

[0064] When oxygen passes through the conduit 53, it will enter the horizontal pipe 61 and then be ejected from both ends of the vertical pipe 62. The oxygen ejected from one end of the vertical pipe 62 will react with the blockage to produce an oxidation reaction, thereby producing an emergency treatment measure of melting the blockage at high temperature and opening the steel outlet.

[0065] Since the temperature of the steel outlet is high, when one end of the vertical pipe 62 is damaged, the motor drives the support rod 52 provided at one end of the swing frame 51 to flip, so that the other end of the vertical pipe 62 faces the steel outlet, ensuring stable oxygen delivery.

[0066] Example 2: Reference Figure 9 、 Figure 10 、 Figure 11 、 Figure 12 、 Figure 13 and Figure 14 As shown, on the basis of the first embodiment, in order to avoid the waste of oxygen ejected from both ends of the vertical pipe 62 at the same time, a diverter 8 is provided between the horizontal pipe 61 and the conduit 53; the diverter 8 can guide the oxygen to be ejected only from one end of the vertical pipe 62, and cooperate with the flipping of the support rod 52 by switching the ejection end.

[0067] Specifically, the diverter 8 includes a dividing strip 81 provided in the horizontal tube 61, and the dividing strip 81 divides the vertical tube 62 into an upper channel 82 and a lower channel 83; the upper channel 82 is connected to one end of the vertical tube 62 (that is, the upper channel 82 is connected to the upper end of the vertical tube 62), and the lower channel 83 is connected to the other end of the vertical tube 62 (that is, the lower channel 83 is connected to the lower end of the vertical tube 62).

[0068] A thickened section 84 corresponding to the transverse tube 61 is provided on one side of the conduit 53 . A joint 85 is rotatably provided in the thickened section 84 . A through hole 86 corresponding to the upper channel 82 or the lower channel 83 is provided in the joint 85 .

[0069] When oxygen passes through the conduit 53, it will enter the thickened section 84, and then enter the through hole 86 of the joint 85, and then enter the upper channel 82, and then be ejected from the upper end of the vertical pipe 62 through the upper channel 82. The oxygen will react with the blockage to produce a high-temperature melting blockage. When one end of the vertical pipe 62 is damaged or blocked by high temperature, the support rod 52 at one end of the swing frame 51 is driven by the motor to flip over, so that the lower end of the vertical pipe 62 is upward.

[0070] The thickened section 84 is provided with an arcuate groove 87 , in which a shifting block 88 connected to the joint 85 is slidably provided. An adjusting ring 89 connected to the shifting block 88 is rotatably provided on the thickened section 84 .

[0071] By driving the adjusting ring 89 to rotate, the adjusting ring 89 drives the shift block 88 to move in the arc groove 87, and the shift block 88 drives the connector 85 to connect the through hole 86 with the lower channel 83. At this time, oxygen enters the lower channel 83 after passing through the through hole 86, and is then ejected from the other end of the vertical pipe 62, thereby increasing the service life of the drainage tube 6. At the same time, the connector 85 or the shift block 88 can be replaced separately without stopping the machine, which shortens the maintenance time compared to the traditional integral structure.

[0072] The implementation principle of the present invention is: (1): When draining the steel outlet, the turntable 2 drives the lifting seat 3 to rotate, so that the arm 4 faces the steel outlet. The arm 4 will drive the swing frame 51 set at the lower side of its end, so that the support rod 52 set at one end of the swing frame 51 drives the drainage pipe 6 to move to the bottom of the steel outlet. Then the lifting seat 3 drives the arm 4 to move upward, so that the drainage pipe 6 is close to the steel outlet.

[0073] (2): Oxygen enters through the air inlet pipe 73, and then enters the air outlet pipe 72 through the connecting pipe 71. The air outlet pipe 72 is connected to the conduit 53. Oxygen enters the conduit 53 through the air inlet pipe 73, and then is ejected from the drainage pipe 6 to react with the blockage to produce an oxidation reaction, thereby generating high temperature to melt the blockage and open the steel outlet.

[0074] (3): By rotating the adjusting screw 78 rotatably arranged on the limit ring 77, the adjusting screw 78 rotates through the connecting pipe 71 and is threadedly connected to the limit plate 76. The limit plate 76 is forced to move in the connecting pipe 71 through the threaded connection with the limit plate 76, thereby changing the elastic force of the return spring 75, thereby achieving the adjustment of the size of the oxygen pressure.

[0075] (4): When the piston 74 is required to open the air outlet pipe 72 and keep it stable, the limit rod 79 can be pulled, and the limit rod 79 drives the piston 74 to compress the return spring 75, and then the limit rod 79 is rotated to make the threaded section 791 threadedly connected to the connecting pipe 71, thereby limiting the piston 74. At this time, the limit rod 79 is threadedly connected to the connecting pipe 71, so that the piston 74 is in a state of always opening the air outlet pipe 72. By rotating the limit rod 79, the limit rod 79 can also drive the piston 74 to change the size of the opening of the air outlet pipe 72.

[0076] (5): By driving the adjusting ring 89 to rotate, the adjusting ring 89 drives the shift block 88 to move in the arc groove 87, and the shift block 88 drives the connector 85 to connect the through hole 86 with the lower channel 83. At this time, oxygen will enter the lower channel 83 after passing through the through hole 86, and then be ejected from the other end of the vertical pipe 62, thereby increasing the service life of the drainage tube 6; at the same time, the connector 85 or the shift block 88 can be replaced separately without stopping the machine, which shortens the maintenance time compared with the traditional integral structure.

[0077] The embodiments of this specific implementation method are all preferred embodiments of the present invention and are not intended to limit the scope of protection 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 scope of protection of the present invention.

Claims

1. An EBT tapping hole emergency opening and drainage manipulator, comprising a base (1), a turntable (2) rotatably provided on the base (1), characterized in that: A lifting seat (3) is provided on the turntable (2), a large arm (4) is slidably provided on the lifting seat (3), and a swing arm (5) is rotatably provided at the end of the large arm (4); The swing arm (5) comprises a swing frame (51) rotatably arranged at the lower side of the end of the upper arm (4); a support rod (52) is rotatably arranged at one end of the swing frame (51); a conduit (53) is arranged on the support rod (52); and a detachable drainage tube (6) is arranged at one end of the conduit (53).

2. The EBT taphole emergency opening and drainage robot according to claim 1, characterized in that: A flow restrictor (7) is provided on the conduit (53); The flow restrictor (7) includes a connecting pipe (71) provided on the support rod (52), an air outlet pipe (72) connected to the guide tube (53) being provided on one side of the connecting pipe (71), and an air inlet pipe (73) communicating with the connecting pipe (71) being provided on the other side of the connecting pipe (71); A piston (74) is slidably provided in the air intake pipe (73), and a return spring (75) is provided between one end of the piston (74) facing the air intake pipe (73) and the connecting pipe (71).

3. The EBT taphole emergency opening and drainage robot according to claim 2, characterized in that: A limit plate (76) is slidably provided in the connecting tube (71), a limit ring (77) is provided between the limit plate (76) and the piston (74), and a return spring (75) is located between the limit plate (76) and the piston (74) and passes through the middle of the limit ring (77).

4. The EBT taphole emergency opening and drainage robot according to claim 3, characterized in that: An adjusting screw (78) that rotates and penetrates the connecting pipe (71) is rotatably provided on the limiting ring (77), and the adjusting screw (78) is threadedly connected to the limiting plate (76).

5. The EBT taphole emergency opening and drainage robot according to claim 2, characterized in that: A limiting rod (79) is rotatably provided on the piston (74), and one end of the limiting rod (79) rotates and slides through the limiting plate (76) and the connecting pipe (71); The limiting rod (79) is provided with a threaded section (791) threadedly connected to the connecting pipe (71).

6. The EBT taphole emergency opening and drainage robot according to claim 1, characterized in that: The drainage tube (6) comprises a transverse tube (61) detachably provided at one end of the catheter (53), a vertical tube (62) being provided at the end of the transverse tube (61), the vertical tube (62) being relatively perpendicular to the transverse tube (61) and interconnected to form a T-shape.

7. The EBT taphole emergency opening and drainage robot according to claim 6, characterized in that: A connecting strut (63) is provided at the lower end of the supporting rod (52), and a limiting clamp (64) is symmetrically provided at the end of the connecting strut (63), and a clamping groove (65) is formed between the two limiting clamps (64); The transverse tube (61) is provided with a limiting support rod (66) located in the clamping groove (65).

8. The EBT taphole emergency opening and drainage robot according to claim 6, characterized in that: A flow divider (8) is provided between the transverse tube (61) and the conduit (53); The flow dividing member (8) includes a dividing strip (81) provided in the horizontal pipe (61), and the dividing strip (81) divides the vertical pipe (62) into an upper channel (82) and a lower channel (83); A thickened section (84) corresponding to the transverse tube (61) is provided on one side of the conduit (53), a joint (85) is rotatably provided in the thickened section (84), and a through hole (86) corresponding to the upper channel (82) or the lower channel (83) is provided in the joint (85).

9. The EBT taphole emergency opening and drainage robot according to claim 8, characterized in that: An arcuate groove (87) is provided on the thickened section (84), and a shifting block (88) connected to the joint (85) is slidably provided in the arcuate groove (87).

10. The EBT taphole emergency opening and drainage robot according to claim 9, characterized in that: An adjusting ring (89) connected to the shifting block (88) is rotatably provided on the thickened section (84).

Images