A burn-out protection structure for the lifting rod of a converter skirt.

Abstract

This invention relates to the field of converter skirt pull rod technology, and in particular to a burn-out protection structure for a converter skirt lifting pull rod, comprising a pull rod body and a water cooling mechanism; the pull rod body includes a rod body, a connecting seat at the bottom end of the rod body, two stepped grooves at the top of the rod body, and a keyway penetrating the two stepped grooves at the top of the rod body; the water cooling mechanism includes a cylindrical cooling cavity inside the rod body, and a partition fixed to the inner wall of the cylindrical cooling cavity, the partition dividing the cylindrical cooling cavity into a U-shape; the water cooling mechanism also includes cooling water inlet pipes and cooling water outlet pipes symmetrically arranged on the surface of the rod body; the solution proposed in this invention, to avoid pull rod burn-out, redesigns the pull rod structure, keeping the original dimensions unchanged, and changes the original single-end threaded and nut-fastened structure to an integrated pull rod, made of 304 stainless steel, machined as a whole, effectively improving the strength of the pull rod and preventing burn-out.

Description

Technical Field

[0001] This invention relates to the field of converter skirt tie rod technology, and in particular to a burn-out protection structure for a converter skirt lifting tie rod. Background Technology

[0002] A converter hood is a key piece of equipment used in converter steelmaking to capture and guide high-temperature flue gas. It is also commonly referred to as a movable hood. The main function of a converter hood is to capture and guide the high-temperature flue gas generated during converter smelting, while preventing flue gas overflow and external air intrusion that could affect the quality of gas recovery. Advanced converter hood systems can achieve SO2 capture rates of over 99% and improve process gas quality through precise control of the intake flow. A converter hood typically consists of a movable hood (or skirt) and a fixed section. Early movable hood lifting mechanisms used hydraulic cylinders, but later optimizations have used winches, chains, and other drive methods. The transmission device is located on the side of the fixed section away from the high-temperature zone to reduce equipment wear. Key technologies include the use of advanced water-cooling systems to improve reliability, reduce maintenance needs, and extend equipment life; modular design for rapid on-site assembly to shorten installation time; and precisely controlled sealing structures such as hydraulically operated sliding doors to optimize airflow within the system.

[0003] Currently, the traditional converter skirt cover lifting and fixing rod is made of 45# steel, with a threaded structure at one end. It is fixed by tightening with a nut. In actual use, due to the high temperature environment and long-term exposure to furnace fire, the rod often burns out, affecting the lifting and lowering of the skirt cover.

[0004] Therefore, the present invention provides a burn-out protection structure for the lifting rod of the converter skirt cover. Summary of the Invention

[0005] The purpose of this invention is to solve at least one technical problem mentioned in the background art.

[0006] This invention provides a burn-out protection structure for the lifting rod of a converter skirt cover, including the rod body and a water cooling mechanism;

[0007] The pull rod body includes a rod body, a connecting seat is provided at the bottom end of the rod body, two stepped grooves are provided at the top of the rod body, and a keyway is provided at the top of the rod body that passes through the two stepped grooves.

[0008] The water cooling mechanism includes a cylindrical cooling cavity opened inside the rod body, and a partition fixed to the inner wall of the cylindrical cooling cavity. The partition divides the cylindrical cooling cavity into a U-shape. The water cooling mechanism also includes a cooling water inlet pipe and a cooling water outlet pipe symmetrically arranged on the surface of the rod body. One end of the cooling water inlet pipe and the cooling water outlet pipe extends into the interior of the cylindrical cooling cavity.

[0009] Preferably, the rod and the connecting seat are integrally machined into a single structure, and both the rod and the connecting seat are made of stainless steel 304.

[0010] By adopting the above technical solution, the tie rod body is machined as a single piece, effectively improving the overall strength of the tie rod body. Specifically, to prevent the tie rod from burning out, the technical solution of this invention redesigns the tie rod structure while maintaining the original dimensions. The original single-end threaded and nut-fastening structure is replaced with a single-piece tie rod made of 304 stainless steel, effectively improving the strength of the tie rod and preventing it from burning out.

[0011] Preferably, both ends of the connecting seat are provided with a 3*45 degree chamfer, and the connection between the connecting seat and the rod is provided with an R3 chamfer.

[0012] By adopting the above technical solution, injuries to personnel can be avoided during the transfer of the pull rod body after it has been manufactured.

[0013] Preferably, the other ends of the cooling water inlet pipe and the cooling water outlet pipe are respectively provided with a first quick connector and a second quick connector. The other end of the cooling water inlet pipe is connected to the outlet end of an external water pump through the first quick connector, and the other end of the cooling water outlet pipe is connected to an external drain pipe through the second quick connector.

[0014] By adopting the above technical solution, the cooling water inlet pipe can be quickly connected to the outlet pipe of the external water pump, so that the cooling water can be smoothly delivered to the cylindrical cooling chamber under the action of the external water pump. At the same time, the cooling water outlet pipe can be quickly connected to the external drain pipe to quickly discharge the cooled water after heat exchange, thereby achieving the purpose of effective water cooling and heat dissipation of the internal parts of the tie rod body, and thus achieving the protection against burnout of the tie rod body.

[0015] Preferably, the outer surface of the rod is provided with a wind-cooling mechanism, which is used to simultaneously achieve wind-cooling of the rod's interior during the process of water-cooling the rod.

[0016] By adopting the above technical solution, the automatic air cooling and heat dissipation of the inside of the pole body can be achieved through the air cooling mechanism, thereby achieving the purpose of further cooling and heat dissipation of the pole body.

[0017] Preferably, the air-cooling mechanism includes a first connecting cylinder fixed on the surface of the cooling water inlet pipe, the first connecting cylinder dividing the cooling water inlet pipe into two sections, and both sections of the cooling water inlet pipe are connected to the first connecting cylinder. A second connecting cylinder is fixed on the surface of the rod body through a mounting column. A rotating tube penetrating the first connecting cylinder is rotatably provided on the inner wall of the first connecting cylinder, and an impeller adapted to the inner wall of the first connecting cylinder is fixed on the surface of the rotating tube.

[0018] By adopting the above technical solution, when the cooling water flows through the cooling water inlet pipe under the action of the water pump, the high-speed flowing cooling water will enter the first connecting cylinder and drive the impeller to rotate. The rotation of the impeller will drive the rotating pipe to rotate.

[0019] Preferably, the inner wall of the second connecting cylinder is rotatably provided with a rotating shaft, the surface of the rotating shaft is fixedly provided with a fan, one end of the rotating tube extends into the interior of the second connecting cylinder, and the outer surface of the end of the rotating tube is fixedly provided with a driving gear disk, the surface of the rotating shaft is fixedly provided with a driven gear disk, and the specification of the driving gear disk is twice that of the driven gear disk.

[0020] By adopting the above technical solution, during the rotation of the rotating tube, the rotation of the rotating tube drives the active gear disk to rotate, and the rotation of the active gear disk drives the driven gear disk and the rotating shaft to rotate at an accelerated speed, thereby driving the fan to rotate at high speed. The high-speed rotating fan can draw external air into the second connecting cylinder through the rotating tube.

[0021] Preferably, a first ventilation mesh plate is fixedly provided on the inner walls of both ends of the rotating tube, and a rotating hole for the rotating tube to rotate is provided on the inner walls of both ends of the first connecting cylinder and the end of the second connecting cylinder. A sealed bearing is provided on the inner wall of the rotating hole to facilitate the rotation of the rotating tube.

[0022] By adopting the above technical solution, and through the setting of rotating holes and sealed bearings, the rotating tube can rotate smoothly.

[0023] Preferably, the air-cooling mechanism further includes a spiral groove formed inside the rod body and a spiral tube fixed to the inner wall of the spiral groove. An air inlet pipe and an air outlet pipe are respectively provided at both ends of the spiral tube, and the ends of the air inlet pipe and the air outlet pipe away from the spiral tube extend to the outside of the rod body. A filter cover is provided at the end of the air outlet pipe.

[0024] By adopting the above technical solution, air can flow inside the spiral tube, allowing the heat conducted from the rod to the spiral tube to be quickly carried away by the airflow, thereby achieving the purpose of further heat dissipation from the rod.

[0025] Preferably, the inner wall of the second connecting cylinder has a plurality of ventilation openings arranged in a circumferential array, and the inner wall of each ventilation opening is fixed with a second ventilation mesh plate. The side of the second connecting cylinder is provided with a connecting cover corresponding to the ventilation opening, and the end of the air inlet pipe away from the spiral tube extends into the interior of the connecting cover.

[0026] By adopting the above technical solution, the high-speed rotating fan can draw external air into the second connecting cylinder through the rotating tube, and deliver fresh air into the spiral tube through the connecting cover and air inlet pipe. This allows the high-speed airflow to expel the heat of the rod body conducted in the spiral tube, achieving the purpose of both water cooling and air cooling of the rod body, thereby achieving the purpose of dual heat dissipation of the rod body and further protecting the rod body from burnout.

[0027] In summary, the present invention has at least one of the following beneficial technical effects:

[0028] 1. The present invention provides a burn-out protection structure for the lifting rod of a converter skirt cover. To prevent the rod from burning out, the rod structure is redesigned while maintaining the original dimensions. The original single-end threaded and nut-fastened structure is replaced with an integrated rod made of 304 stainless steel. This effectively improves the strength of the rod and prevents it from burning out.

[0029] 2. The anti-burnout protection structure for the converter skirt lifting rod of the present invention, by setting a water cooling mechanism, enables the external water pump to deliver cooling water to the cylindrical cooling chamber through the cooling water inlet pipe during actual use, and after flowing in the U-shaped cylindrical cooling chamber, it is discharged through the cooling water outlet pipe, thereby achieving the purpose of effective water cooling and heat dissipation of the internal part of the rod body, and thus achieving anti-burnout protection for the rod body.

[0030] 3. The anti-burnout protection structure for the converter skirt lifting rod of the present invention, by setting up an air-cooling mechanism, when cooling water flows through the cooling water inlet pipe under the action of the water pump, the high-speed flowing cooling water will enter the first connecting cylinder and drive the impeller to rotate. The rotation of the impeller drives the rotating pipe to rotate, the rotation of the rotating pipe drives the active gear disk to rotate, and the rotation of the active gear disk drives the driven gear disk and the rotating shaft to rotate at an accelerated speed, thereby driving the fan to rotate at high speed. The high-speed rotating fan can draw external air into the second connecting cylinder through the rotating pipe, and deliver fresh air to the spiral tube through the connecting cover and the air inlet pipe, and finally discharge it through the air outlet pipe. In this way, the high-speed flowing air can dissipate the heat of the rod body conducted in the spiral tube, thereby achieving the purpose of water cooling and air cooling of the rod body at the same time, and thus achieving the purpose of dual heat dissipation of the rod body, and further achieving anti-burnout protection for the rod body. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0032] Figure 2 This is a second-view structural schematic diagram of Embodiment 1 of the present invention;

[0033] Figure 3This is a schematic diagram of the cross-sectional structure of the rod in Embodiment 1 of the present invention;

[0034] Figure 4 This is the present invention. Figure 3 Enlarged structural diagram at point A in the middle;

[0035] Figure 5 This is a schematic diagram of the overall structure of Embodiment 2 of the present invention;

[0036] Figure 6 This is a side view structural diagram of Embodiment 2 of the present invention;

[0037] Figure 7 This is a schematic diagram of the cross-sectional structure of the rod in Embodiment 2 of the present invention;

[0038] Figure 8 This is the present invention. Figure 7 Enlarged structural diagram at point B.

[0039] Explanation of reference numerals in the attached figures:

[0040] 100. Pull rod body; 101. Rod body; 102. Connecting seat; 103. Stepped groove; 104. Keyway;

[0041] 200. Water cooling mechanism; 201. Cylindrical cooling chamber; 202. Baffle plate; 203. Cooling water inlet pipe; 204. Cooling water outlet pipe; 205. First quick connector; 206. Second quick connector;

[0042] 300. Air-cooled mechanism; 301. First connecting cylinder; 302. Second connecting cylinder; 303. Rotating tube; 304. Impeller; 305. Rotating shaft; 306. Fan; 307. Driving gear plate; 308. Driven gear plate; 309. First ventilation mesh plate; 3010. Air inlet pipe; 3011. Air outlet pipe; 3012. Second ventilation mesh plate; 3013. Connecting cover; 3014. Spiral tube. Detailed Implementation

[0043] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] Example 1

[0045] Please refer to the following carefully. Figure 1 , Figure 2 , Figure 3 , Figure 4A burn-out protection structure for a converter skirt lifting rod includes a rod body 100 and a water cooling mechanism 200. The rod body 100 includes a rod 101, a connecting seat 102 at the bottom end of the rod 101, two stepped grooves 103 at the top of the rod 101, and a keyway 104 penetrating the two stepped grooves 103 at the top of the rod 101. The water cooling mechanism 200 includes a cylindrical cooling cavity 201 inside the rod 101 and a partition 202 fixed to the inner wall of the cylindrical cooling cavity 201. The partition 202 divides the cylindrical cooling cavity 201 into a U-shape. The water cooling mechanism 200 also includes a cooling water inlet pipe 203 and a cooling water outlet pipe 204 symmetrically arranged on the surface of the rod 101. One end of the cooling water inlet pipe 203 and the cooling water outlet pipe 204 extends into the interior of the cylindrical cooling cavity 201.

[0046] The present invention can effectively improve the overall strength of the pull rod body 100 through the above technical solution, and can also achieve the purpose of effective water cooling and heat dissipation of the interior of the pull rod body 100, thereby achieving the protection against burnout of the pull rod body 100.

[0047] Please refer to this carefully. Figure 1 , Figure 2 The rod 101 and the connecting seat 102 are integrally machined into a single structure, and both the rod 101 and the connecting seat 102 are made of stainless steel 304.

[0048] Specifically, the tie rod body 100 is machined as a single piece, which effectively improves the overall strength of the tie rod body 100.

[0049] Please refer to this carefully. Figure 1 , Figure 2 Both ends of the connecting seat 102 are provided with 3*45 degree chamfers, and the connection between the connecting seat 102 and the rod 101 is provided with R3 chamfer.

[0050] Specifically, this is to prevent injury to personnel during the transfer of the lever body 100 after it has been manufactured.

[0051] In order to prevent the tie rod from burning out, the present invention redesigns the tie rod structure while keeping the original size unchanged. The original single-end threaded and nut fastening structure is changed to an integrated tie rod, which is made of 304 stainless steel and machined as a whole, which effectively improves the strength of the tie rod and prevents it from burning out.

[0052] Please refer to this carefully. Figure 3 , Figure 4The other ends of the cooling water inlet pipe 203 and the cooling water outlet pipe 204 are respectively provided with a first quick connector 205 and a second quick connector 206. The other end of the cooling water inlet pipe 203 is connected to the outlet of the external water pump through the first quick connector 205, and the other end of the cooling water outlet pipe 204 is connected to the external drain pipe through the second quick connector 206.

[0053] Specifically, the cooling water inlet pipe 203 can be quickly connected to the outlet pipe of the external water pump, so that the cooling water can be smoothly delivered to the cylindrical cooling chamber 201 under the action of the external water pump. At the same time, the cooling water outlet pipe 204 can be quickly connected to the external drain pipe to quickly discharge the cooled water after heat exchange, thereby achieving the purpose of effective water cooling and heat dissipation of the inside of the tie rod body 100, and thus achieving the protection against burnout of the tie rod body 100.

[0054] In this invention, by setting up a water cooling mechanism 200, the pull rod can be supplied with cooling water by an external water pump through the cooling water inlet pipe 203 to the cylindrical cooling chamber 201 during actual use. After flowing in the U-shaped cylindrical cooling chamber 201, the water is discharged through the cooling water outlet pipe 204, thereby achieving the purpose of effective water cooling and heat dissipation of the interior of the pull rod body 100, and thus achieving the protection against burnout of the pull rod body 100.

[0055] Example 2

[0056] Based on Example 1, referring to Figures 5 to 8 And unlike Example 1, the following is true:

[0057] Please refer to this carefully. Figure 5 , Figure 6 The outer surface of the rod 101 is provided with a wind-cooling mechanism 300, which is used to simultaneously realize the wind-cooling of the inside of the rod 101 during the process of water cooling heat dissipation of the rod 101.

[0058] Specifically, the air-cooling mechanism 300 can automatically cool and dissipate heat inside the rod 101, thereby achieving the purpose of further cooling and heat dissipation of the rod 101.

[0059] Please refer to this carefully. Figure 7 , Figure 8 The air-cooling mechanism 300 includes a first connecting cylinder 301 fixed on the surface of the cooling water inlet pipe 203. The first connecting cylinder 301 divides the cooling water inlet pipe 203 into two sections, and both sections of the cooling water inlet pipe 203 are connected to the first connecting cylinder 301. A second connecting cylinder 302 is fixed on the surface of the rod body 101 through a mounting column. A rotating pipe 303 is rotatably provided on the inner wall of the first connecting cylinder 301, and an impeller 304 adapted to the inner wall of the first connecting cylinder 301 is fixed on the surface of the rotating pipe 303.

[0060] Specifically, when the cooling water flows through the cooling water inlet pipe 203 under the action of the water pump, the high-speed flowing cooling water will enter the first connecting cylinder 301 and drive the impeller 304 to rotate. The rotation of the impeller 304 will drive the rotating pipe 303 to rotate automatically.

[0061] Please refer to this carefully. Figure 7 , Figure 8 The inner wall of the second connecting cylinder 302 is rotatably provided with a rotating shaft 305. A fan 306 is fixed on the surface of the rotating shaft 305. One end of the rotating tube 303 extends into the interior of the second connecting cylinder 302. An active gear 307 is fixed on the outer surface of the end of the rotating tube 303. A driven gear 308 is fixed on the surface of the rotating shaft 305. The size of the active gear 307 is twice that of the driven gear 308.

[0062] Specifically, during the rotation of the rotating tube 303, the rotation of the rotating tube 303 drives the active gear disk 307 to rotate, and the rotation of the active gear disk 307 drives the driven gear disk 308 and the rotating shaft 305 to rotate at an accelerated speed, thereby driving the fan 306 to rotate at high speed. The high-speed rotating fan 306 can draw external air into the second connecting cylinder 302 through the rotating tube 303.

[0063] Please refer to this carefully. Figure 7 , Figure 8 The inner walls of both ends of the rotating tube 303 are fixed with a first ventilation mesh plate 309. The inner walls of both ends of the first connecting cylinder 301 and the end of the second connecting cylinder 302 are provided with rotating holes for the rotating tube 303 to rotate. The inner wall of the rotating hole is provided with a sealed bearing to facilitate the rotation of the rotating tube 303.

[0064] Specifically, the rotating tube 303 can rotate smoothly by means of the rotating hole and the sealed bearing.

[0065] Please refer to this carefully. Figure 7 , Figure 8 The air-cooling mechanism 300 also includes a spiral groove formed inside the rod 101 and a spiral tube 3014 fixed to the inner wall of the spiral groove. An air inlet pipe 3010 and an air outlet pipe 3011 are respectively provided at both ends of the spiral tube 3014. The ends of the air inlet pipe 3010 and the air outlet pipe 3011 away from the spiral tube 3014 extend to the outside of the rod 101, and a filter cover is provided at the end of the air outlet pipe 3011.

[0066] Specifically, it enables air to flow within the spiral tube 3014, allowing the heat conducted from the rod 101 to the spiral tube 3014 to be quickly carried away by the airflow, thereby achieving the purpose of further dissipating heat from the rod 101.

[0067] Please refer to this carefully. Figure 7 , Figure 8The inner wall of the second connecting cylinder 302 is provided with a number of ventilation openings in a circular array, and the inner wall of each ventilation opening is fixed with a second ventilation mesh plate 3012. The side of the second connecting cylinder 302 is provided with a connecting cover 3013 corresponding to the ventilation opening. The end of the air inlet pipe 3010 away from the spiral pipe 3014 extends into the interior of the connecting cover 3013.

[0068] Specifically, the high-speed rotating fan 306 can draw external air into the second connecting cylinder 302 through the rotating pipe 303, and deliver fresh air to the spiral pipe 3014 through the connecting cover 3013 and the air inlet pipe 3010.

[0069] In this embodiment, by setting up an air-cooling mechanism 300, when cooling water flows through the cooling water inlet pipe 203 under the action of the water pump, the high-speed flowing cooling water will enter the first connecting cylinder 301 and drive the impeller 304 to rotate. The rotation of the impeller 304 drives the rotating pipe 303 to rotate, and the rotation of the rotating pipe 303 drives the drive gear 307 to rotate. The rotation of the drive gear 307 drives the driven gear 308 and the rotating shaft 305 to rotate at an accelerated speed, thereby driving the fan 306 to rotate at high speed. The high-speed rotating fan 306 can pass through the rotating pipe 301. 03. External air is drawn into the second connecting cylinder 302 and delivered to the spiral tube 3014 through the connecting cover 3013 and the air inlet pipe 3010. Finally, it is discharged through the air outlet pipe 3011. This allows the high-speed airflow to discharge the heat conducted on the rod body 101 in the spiral tube 3014, achieving the purpose of water cooling and air cooling of the rod body 101 at the same time, thereby achieving the purpose of dual heat dissipation of the rod body 101 and further realizing the protection against burnout of the rod body 100.

[0070] Working principle:

[0071] To prevent the tie rod from burning out, this invention redesigns the tie rod structure while maintaining the original dimensions. The original single-end threaded and nut-fastened structure is replaced with a one-piece tie rod made of 304 stainless steel, effectively improving its strength and preventing burn-out. During actual use, the tie rod allows an external water pump to deliver cooling water through the cooling water inlet pipe 203 to the cylindrical cooling chamber 201. After flowing within the U-shaped cylindrical cooling chamber 201, the water is discharged through the cooling water outlet pipe 204, effectively cooling the interior of the tie rod body 100 and thus protecting it from burn-out. Furthermore, when the cooling water flows through the cooling water inlet pipe 203 under the action of the water pump, the high-speed flowing cooling water enters the first connecting cylinder 301, driving the impeller 304 to rotate. The rotation of the rotating tube 303 drives the rotating tube 303 to rotate, which in turn drives the active gear 307 to rotate. The rotation of the active gear 307 drives the driven gear 308 and the rotating shaft 305 to rotate at an accelerated speed, thereby driving the fan 306 to rotate at high speed. The high-speed rotating fan 306 can draw external air into the second connecting cylinder 302 through the rotating tube 303, and deliver fresh air to the spiral tube 3014 through the connecting cover 3013 and the air inlet pipe 3010, and finally discharge it through the air outlet pipe 3011. This allows the high-speed airflow to discharge the heat conducted on the rod 101 in the spiral tube 3014, achieving the purpose of both water cooling and air cooling of the rod 101, thus achieving the purpose of dual heat dissipation of the rod 101 and further realizing the protection against burnout of the rod body 100.

Claims

1. A burnout protection structure of a converter skirt lifting pull rod, characterized by, Includes a tie rod body (100) and a water cooling mechanism (200); The pull rod body (100) includes a rod body (101), a connecting seat (102) is provided at the bottom end of the rod body (101), two stepped grooves (103) are opened at the top of the rod body (101), and a keyway (104) is opened at the top of the rod body (101) through the two stepped grooves (103). The water cooling mechanism (200) includes a cylindrical cooling cavity (201) opened inside the rod (101) and a partition (202) fixed on the inner wall of the cylindrical cooling cavity (201). The partition (202) divides the cylindrical cooling cavity (201) into a U-shape. The water cooling mechanism (200) also includes a cooling water inlet pipe (203) and a cooling water outlet pipe (204) symmetrically arranged on the surface of the rod (101). One end of the cooling water inlet pipe (203) and the cooling water outlet pipe (204) extends into the interior of the cylindrical cooling cavity (201).

2. The anti-burnout protection structure of a lifting rod of a converter skirt according to claim 1, characterized in that, The rod (101) and the connecting seat (102) are integrally machined into a single structure, and both the rod (101) and the connecting seat (102) are made of stainless steel 304.

3. The anti-burnout protection structure for the converter skirt lifting rod according to claim 1, characterized in that, Both ends of the connecting seat (102) are provided with a 3*45 degree chamfer, and the connection between the connecting seat (102) and the rod (101) is provided with an R3 chamfer.

4. The anti-burnout protection structure for the converter skirt lifting rod according to claim 1, characterized in that, The other ends of the cooling water inlet pipe (203) and the cooling water outlet pipe (204) are respectively provided with a first quick connector (205) and a second quick connector (206). The other end of the cooling water inlet pipe (203) is connected to the outlet of the external water pump through the first quick connector (205), and the other end of the cooling water outlet pipe (204) is connected to the external drain pipe through the second quick connector (206).

5. The anti-burnout protection structure for the converter skirt lifting rod according to claim 1, characterized in that, The outer surface of the rod (101) is provided with a wind-cooling mechanism (300), which is used to simultaneously realize the wind-cooling of the inside of the rod (101) during the process of water cooling heat dissipation of the rod (101).

6. The anti-burnout protection structure for the converter skirt lifting rod according to claim 5, characterized in that, The air-cooling mechanism (300) includes a first connecting cylinder (301) fixed on the surface of the cooling water inlet pipe (203). The first connecting cylinder (301) divides the cooling water inlet pipe (203) into two sections, and both sections of the cooling water inlet pipe (203) are connected to the first connecting cylinder (301). The surface of the rod body (101) is fixed with a second connecting cylinder (302) by a mounting column. The inner wall of the first connecting cylinder (301) is rotatably provided with a rotating pipe (303) that passes through the first connecting cylinder (301). The surface of the rotating pipe (303) is fixed with an impeller (304) that is adapted to the inner wall of the first connecting cylinder (301).

7. The anti-burnout protection structure for the converter skirt lifting rod according to claim 6, characterized in that, The inner wall of the second connecting cylinder (302) is rotatably provided with a rotating shaft (305), and a fan (306) is fixedly provided on the surface of the rotating shaft (305). One end of the rotating tube (303) extends into the interior of the second connecting cylinder (302), and an active gear disk (307) is fixedly provided on the outer surface of the end of the rotating tube (303). A driven gear disk (308) is fixedly provided on the surface of the rotating shaft (305), and the specification of the active gear disk (307) is twice that of the driven gear disk (308).

8. The anti-burnout protection structure for the converter skirt lifting rod according to claim 7, characterized in that, The inner walls of both ends of the rotating tube (303) are fixed with a first ventilation mesh plate (309). The inner walls of both ends of the first connecting cylinder (301) and the end of the second connecting cylinder (302) are provided with rotating holes for the rotating tube (303) to rotate. The inner wall of the rotating hole is provided with a sealed bearing to facilitate the rotation of the rotating tube (303).

9. The anti-burnout protection structure for the converter skirt lifting rod according to claim 8, characterized in that, The air-cooling mechanism (300) also includes a spiral groove opened inside the rod body (101) and a spiral tube (3014) fixed on the inner wall of the spiral groove. The two ends of the spiral tube (3014) are respectively provided with an air inlet pipe (3010) and an air outlet pipe (3011), and the ends of the air inlet pipe (3010) and the air outlet pipe (3011) away from the spiral tube (3014) both extend to the outside of the rod body (101), and the end of the air outlet pipe (3011) is provided with a filter cover.

10. The anti-burnout protection structure for the converter skirt lifting rod according to claim 9, characterized in that, The inner wall of the second connecting cylinder (302) is provided with a number of ventilation openings in a circular array, and the inner wall of each ventilation opening is fixed with a second ventilation mesh plate (3012). The side of the second connecting cylinder (302) is provided with a connecting cover (3013) corresponding to the ventilation opening. The end of the air inlet pipe (3010) away from the spiral pipe (3014) extends into the interior of the connecting cover (3013).

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