Sealing protection equipment for oxygen lance opening of converter

Abstract

The invention discloses sealing protection equipment for a converter oxygen lance opening, and relates to the technical field of sealing protection, and the sealing protection equipment comprises a composite mechanism. According to the sealing protection equipment for the converter oxygen lance opening, through the design of a composite mechanism, connection pipes are connected in a butt joint mode, inert gas is injected into the composite shell, and then the inert gas is discharged from a hole-shaped groove in the surface of a discharging plate, so that the purposes of inhibiting oxygen lance air loss, increasing the sealing effect and improving the operation effect are achieved; by reducing the diameter of a pipeline, the effect of increasing the gas flowing speed is achieved, the discharging effect is improved, a funnel plate is connected with an external connecting strip, the friction force between the funnel plate and the inner wall of a converter shell is increased, the effect of preventing gas leakage is achieved, and operation reaction is facilitated; therefore, the damping and buffering effects are achieved, equipment collision and abrasion are avoided, and the service life of the equipment is prevented from being affected.

Description

Technical Field

[0001] The invention relates to the technical field of sealing protection, in particular to sealing protection equipment for a converter oxygen lance mouth. Background Art

[0002] The oxygen lance of the converter is a very critical part in the converter steelmaking process. It is the entrance of the channel for blowing oxygen into the converter. The oxygen blown in through the oxygen lance can react with the molten iron in the furnace, thereby achieving a series of important steelmaking chemical reactions such as decarburization and temperature increase. The design and working state of the converter oxygen lance have an important impact on the efficiency, quality and cost of steelmaking.

[0003] When the existing equipment is operating the oxygen lance, gas leakage is prone to occur, which affects the operating efficiency. Therefore, a new design was made to address this situation. Summary of the invention

[0004] To achieve the above purpose, the present invention is implemented by the following technical scheme: a sealing protection device for a converter oxygen lance, comprising: A composite mechanism, the composite mechanism is used to seal the oxygen lance of the converter; A frame, the frame being used to support the composite structure; The exterior of the composite mechanism is fixedly connected to the interior of the frame, and the inner wall of the composite mechanism is plugged with a processing mechanism; Among them, the composite mechanism includes a converter shell, the top of the converter shell is fixedly connected with a composite shell, the outside of the composite shell is fixedly connected with a connecting pipe, the inside of the composite shell is fixedly connected with a discharge plate, the outside of the discharge plate is provided with a hole-shaped groove, and inert gas is injected into the inside of the composite shell through the docking connecting pipe, and then discharged from the hole-shaped groove on the surface of the discharge plate, so as to suppress the air loss of the oxygen gun, increase the sealing effect, and improve the operation effect. The hole-shaped groove adopts a structure with one end wide and the other end narrow, and the diameter of the pipeline is reduced to increase the effect of increasing the gas flow rate and increasing the discharge effect. A funnel plate is fixedly connected to the edge of the bottom of the composite shell, and an external connecting strip is fixedly connected to the outside of the funnel plate. The funnel plate is connected to the external connecting strip to increase the friction with the inner wall of the converter shell, so as to prevent gas leakage and facilitate the operation reaction. The side of the funnel plate close to the external connecting strip is fixedly connected with a clamping mechanism, the bottom of the composite shell is fixedly connected with a friction mechanism, and the top of the composite shell is fixedly connected with a docking mechanism.

[0005] Preferably, the outside of the composite shell is fixedly connected to a first electric push rod, and an external block is inserted at the bottom of the first electric push rod. The composite shell is pushed to dock with the top of the converter shell by the first electric push rod, so as to achieve a preset closure effect and facilitate subsequent operations. The bottom of the external block is fixedly connected to the top side of the converter shell, and the outside of the external block is sleeved with a spring bar. When the composite shell is pressed down to dock with the external block, the spring bar is squeezed to achieve a shock-absorbing and buffering effect, avoid equipment collision and wear, and avoid affecting the service life of the equipment.

[0006] Preferably, the clamping mechanism comprises a clamping bracket, one side of the outside of the clamping bracket is fixedly connected to the outside of the funnel plate, a second electric push rod is fixedly connected between opposite surfaces of the clamping bracket, a clamping plate is fixedly connected to the side of the clamping bracket away from the funnel plate, and a clamping block is fixedly connected to the side of the clamping plate away from the clamping bracket. When the composite shell is docked with the converter shell, the second electric push rod controls the clamping bracket so that the clamping plate fits the inner wall of the converter shell, thereby achieving the effect of clamping and fixing, improving the stability of the equipment, and increasing the sealing effect. By setting the clamping block, the friction performance is increased and the fixing effect is increased.

[0007] Preferably, the friction mechanism includes an annular shell, the top of the annular shell is fixedly connected to the bottom of the composite shell, the inner side of the annular shell is fixedly connected with a connecting block, the outer side of the connecting block is fixedly connected with a curved bracket, and the opposite surfaces of the curved bracket are fixedly connected with a friction block. When oxygen is inserted from the top of the composite shell, it rubs against the surface of the friction block, thereby cleaning surface impurities, reducing impurity attachment, and avoiding affecting the working effect. The outside of the friction block is provided with a block surface groove. By providing the block surface groove, the chip removal effect is improved, and impurities are avoided from remaining and affecting the friction effect. At the same time, the friction effect is improved and the cleaning efficiency is improved.

[0008] Preferably, the docking mechanism includes a support frame, the bottom of the support frame is fixedly connected to the top of the composite shell, a ring-shaped block is fixedly connected to one side of the outside of the support frame, a telescopic rod is fixedly connected to the inner side of the ring-shaped block, an annular block is fixedly connected to the end of the telescopic rod away from the inner side of the ring-shaped block, a friction ring is fixedly connected to the inner side of the annular block, and a silicone block is fixedly connected to the bottom of the annular block. When the oxygen gun falls from the top of the composite shell, it rubs against the friction ring, and the friction resistance drives the annular block to slide toward the top of the composite shell, so that the silicone block fits on the top of the composite shell, thereby increasing the sealing effect, avoiding gas leakage, and improving work efficiency. At the same time, it plays a positioning role to avoid the oxygen gun from sliding down and deviating.

[0009] Preferably, the processing mechanism includes an oxygen lance shell, the inner wall of which is fixedly connected to a cleaning mechanism, the bottom of which is fixedly connected to a conical discharge port, the conical discharge port adopts a structure that reduces the diameter of the pipe, and by reducing the diameter of the pipe, the gas flow rate is increased, and the eruption speed is increased. The outside of the conical discharge port is fixedly connected to a discharge pipe, and through the design of multiple discharge pipes, the discharge channels are increased, the eruption flow rate is increased, and the operating efficiency is improved.

[0010] Preferably, the cleaning mechanism includes a fixing frame, the outside of which is fixedly connected to the inner wall of the oxygen gun housing, the inside of which is provided with a cylindrical groove, and the inner wall of the cylindrical groove is rotatably connected to a rotating column. The gas inside the oxygen gun impacts the rotating column, causing the rotating column to rotate on the inner wall of the fixing frame, thereby increasing the rotational kinetic energy of the cleaning mechanism, thereby achieving the effect of cleaning impurities.

[0011] Preferably, the outside of the rotating column is fixedly connected to a connecting frame, and the side of the connecting frame away from the rotating column is fixedly connected to a rotating frame. The rotating frame rotates and rubs the inner wall of the pipe to clean the inner wall, reduce the crystallization of impurities on the inner wall, avoid affecting the injection effect and uniformity of oxygen, prevent the oxygen gun mouth from being blocked, and improve working efficiency. The outside of the rotating frame is provided with a triangular groove. By providing the triangular groove, the heat dissipation effect is improved, the local overheating that affects the friction performance is avoided, and the chip removal effect is increased, thereby enhancing the overall friction to a certain extent. The inner side of the rotating frame is fixedly connected to a paddle plate, and the design of multiple paddle plates increases the contact area, improves the rotation efficiency, and improves the cleaning effect.

[0012] The present invention provides a sealing protection device for a converter oxygen lance mouth, which has the following beneficial effects: 1. The sealing protection equipment of the oxygen gun mouth of the converter is designed with a composite structure. Through the docking connection pipe, inert gas is injected into the inside of the composite shell, and then discharged from the hole-shaped groove on the surface of the discharge plate, so as to inhibit the air loss of the oxygen gun, increase the sealing effect, and improve the operation effect. The hole-shaped groove adopts a structure with a wide end and a narrow end at the other end. By reducing the diameter of the pipeline, the gas flow rate is increased and the discharge effect is increased. The funnel plate is connected to the external strip to increase the friction with the inner wall of the converter shell, so as to prevent gas leakage and facilitate the operation reaction.

[0013] 2. The sealing protection equipment of the converter oxygen gun mouth is designed through the clamping mechanism. When the composite shell is docked with the converter shell, the second electric push rod controls the clamping bracket to make the clamping plate fit the inner wall of the converter shell, so as to achieve the clamping and fixing effect, improve the stability of the equipment, and increase the sealing effect. By setting the clamping block, the friction performance is increased and the fixing effect is increased.

[0014] 3. The sealing protection equipment of the converter oxygen gun mouth is designed with a friction mechanism. When oxygen is inserted from the top of the composite shell, it rubs against the surface of the friction block, so as to clean the surface impurities, reduce the attachment of impurities, and avoid affecting the operation effect. By opening grooves on the block surface, the chip removal effect is improved, and impurities are avoided from remaining and affecting the friction effect. At the same time, the friction effect is improved and the cleaning efficiency is improved.

[0015] Fourth, the sealing protection equipment of the converter oxygen lance mouth is designed through a docking mechanism. When the oxygen lance falls from the top of the composite shell, it rubs against the friction ring, and the friction resistance drives the annular block to slide to the top of the composite shell, so that the silicone block fits on the top of the composite shell, thereby increasing the sealing effect, avoiding gas leakage, and improving operating efficiency. At the same time, it plays a positioning role to prevent the oxygen lance from sliding down and deviating.

[0016] 5. The sealing and protective equipment of the oxygen lance mouth of the converter is designed with a cleaning mechanism. The gas inside the oxygen lance impacts the rotating column, causing the rotating column to rotate on the inner wall of the fixed frame, thereby increasing the rotational kinetic energy of the cleaning mechanism, thereby achieving the effect of cleaning impurities. Through the design of multiple paddles, the contact area is increased, the rotation efficiency is improved, and the cleaning effect is improved. The rotating frame rotates and rubs the inner wall of the pipeline to clean the inner wall, reduce the crystallization of impurities on the inner wall, avoid affecting the injection effect and uniformity of oxygen, prevent the oxygen lance mouth from being blocked, and improve operating efficiency. By opening a triangular groove, the heat dissipation effect is improved, local overheating is avoided to affect the friction performance, and the chip removal effect is increased, thereby enhancing the overall friction to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the external structure of the sealing protection device of the converter oxygen lance mouth of the present invention; Figure 2 It is a schematic cross-sectional structure diagram of the sealing protection device of the converter oxygen lance port of the present invention; Figure 3 It is a schematic diagram of the cross-sectional structure of the composite mechanism of the present invention; Figure 4 It is a schematic diagram of the structure of the clamping mechanism of the present invention; Figure 5 It is a schematic diagram of the friction mechanism structure of the present invention; Figure 6 It is a structural schematic diagram of the docking mechanism of the present invention; Figure 7 It is a schematic diagram of the cross-sectional structure of the processing mechanism of the present invention; Figure 8 It is a schematic diagram of the cross-sectional structure of the cleaning mechanism of the present invention.

[0018] In the figure: 1, composite mechanism; 2, frame; 3, processing mechanism; 101, converter shell; 102, external block; 103, spring bar; 104, first electric push rod; 105, connecting pipe; 106, discharge plate; 107, composite shell; 108, funnel plate; 109, external bar; 110, clamping mechanism; 111, friction mechanism; 112, docking mechanism; 113, hole groove; 1101, clamping bracket; 1102, second electric push rod; 1103, clamping plate; 1104, clamping block; 1111, ring-shaped external Shell; 1112, connecting block; 1113, curved bracket; 1114, friction block; 1115, block surface groove; 1121, supporting frame; 1122, ring block; 1123, telescopic rod; 1124, annular block; 1125, friction ring; 1126, silicone block; 31, oxygen gun shell; 32, conical discharge port; 33, discharge pipe; 34, cleaning mechanism; 341, fixing frame; 342, cylindrical groove; 343, rotating column; 344, connecting frame; 345, rotating frame; 346, triangular groove; 347, paddle. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0020] The first embodiment, as Figures 1 to 3 As shown, the present invention provides a technical solution: a sealing protection device for a converter oxygen lance mouth, comprising a composite mechanism 1, the composite mechanism 1 is used to seal the converter oxygen lance mouth; A frame 2, the frame 2 is used to support the composite structure 1; The outside of the composite mechanism 1 is fixedly connected to the inside of the frame 2, and the inner wall of the composite mechanism 1 is plugged with a processing mechanism 3; Among them, the composite mechanism 1 includes a converter shell 101, the top of the converter shell 101 is fixedly connected to a composite shell 107, the outside of the composite shell 107 is fixedly connected to a connecting pipe 105, the inner side of the composite shell 107 is fixedly connected to a discharge plate 106, the outside of the discharge plate 106 is provided with a hole-shaped groove 113, a funnel plate 108 is fixedly connected to the edge of the bottom of the composite shell 107, the outside of the funnel plate 108 is fixedly connected to an external connecting strip 109, a clamping mechanism 110 is fixedly connected to the side of the funnel plate 108 close to the external connecting strip 109, the bottom of the composite shell 107 is fixedly connected to a friction mechanism 111, and the top of the composite shell 107 is fixedly connected to a docking mechanism 112. Through the docking connection pipe 105, inert gas is injected into the composite shell 107, and then discharged from the hole-shaped groove 113 on the surface of the discharge plate 106, so as to suppress the air loss of the oxygen gun, increase the sealing effect, and improve the operating effect. The hole-shaped groove 113 adopts a structure with one end wide and the other end narrow. By reducing the diameter of the pipeline, the gas flow rate is increased and the discharge effect is increased. The funnel plate 108 is connected to the external strip 109 to increase the friction with the inner wall of the converter shell 101, so as to prevent gas leakage and facilitate the operating reaction.

[0021] The outside of the composite housing 107 is fixedly connected with a first electric push rod 104, the bottom of the first electric push rod 104 is plugged with an external block 102, the bottom of the external block 102 is fixedly connected to the top side of the converter shell 101, and the outside of the external block 102 is sleeved with a spring bar 103. The composite housing 107 is pushed to dock with the top of the converter shell 101 by the first electric push rod 104, so as to achieve the effect of pre-sealing, which is convenient for subsequent operations. When the composite housing 107 is pressed down to dock with the external block 102, the spring bar 103 is squeezed, so as to achieve the effect of shock absorption and buffering, avoid collision and wear of the equipment, and avoid affecting the service life of the equipment.

[0022] The second embodiment is based on the first embodiment. Figures 4 to 6 As shown, the clamping mechanism 110 includes a clamping bracket 1101, one side of the outside of the clamping bracket 1101 is fixedly connected to the outside of the funnel plate 108, a second electric push rod 1102 is fixedly connected between opposite surfaces of the clamping bracket 1101, a clamping plate 1103 is fixedly connected to the side of the clamping bracket 1101 away from the funnel plate 108, and a clamping block 1104 is fixedly connected to the side of the clamping plate 1103 away from the clamping bracket 1101. When the composite shell 107 is docked with the converter shell 101, the second electric push rod 1102 controls the clamping bracket 1101 to make the clamping plate 1103 fit the inner wall of the converter shell 101, thereby achieving the effect of clamping and fixing, improving the stability of the equipment, and increasing the sealing effect. By setting the clamping block 1104, the friction performance and the fixing effect are increased.

[0023] The friction mechanism 111 includes a ring-shaped housing 1111, the top of the ring-shaped housing 1111 is fixedly connected to the bottom of the composite housing 107, a connection block 1112 is fixedly connected to the inner side of the ring-shaped housing 1111, a curved bracket 1113 is fixedly connected to one side of the outer side of the connection block 1112, a friction block 1114 is fixedly connected between the opposite surfaces of the curved bracket 1113, and a block surface groove 1115 is provided on the outer side of the friction block 1114. When oxygen is inserted from the top of the composite housing 107, it rubs against the surface of the friction block 1114, thereby achieving the effect of cleaning surface impurities, reducing impurity attachment, and avoiding affecting the working effect. By providing the block surface groove 1115, the chip removal effect is improved, and impurities are avoided from remaining and affecting the friction effect. At the same time, the friction effect is improved and the cleaning efficiency is improved.

[0024] The docking mechanism 112 includes a support frame 1121, the bottom of the support frame 1121 is fixedly connected to the top of the composite housing 107, a ring block 1122 is fixedly connected to one side of the outside of the support frame 1121, a telescopic rod 1123 is fixedly connected to the inner side of the ring block 1122, an annular block 1124 is fixedly connected to one end of the telescopic rod 1123 away from the inner side of the ring block 1122, a friction ring 1125 is fixedly connected to the inner side of the annular block 1124, and a silicone block 1126 is fixedly connected to the bottom of the annular block 1124. When the oxygen gun falls from the top of the composite housing 107, it rubs against the friction ring 1125, and the friction resistance drives the annular block 1124 to slide toward the top of the composite housing 107, so that the silicone block 1126 fits on the top of the composite housing 107, thereby increasing the sealing effect, avoiding gas leakage, and improving the working efficiency, and at the same time plays a positioning role to avoid the oxygen gun from sliding down and deviating.

[0025] The third embodiment is based on the first and second embodiments. Figures 7 and 8 As shown, the treatment mechanism 3 includes an oxygen gun housing 31, the inner wall of which is fixedly connected to a cleaning mechanism 34, the bottom of which is fixedly connected to a conical outlet 32, and the outside of which is fixedly connected to a discharge pipe 33. The conical outlet 32 ​​adopts a structure of reducing the diameter of the pipeline, which increases the gas flow speed and the ejection speed by reducing the diameter of the pipeline, and the design of multiple ejection pipes 33 increases the ejection channels, increases the ejection flow rate, and improves the operation efficiency.

[0026] The cleaning mechanism 34 includes a fixing frame 341, the outside of which is fixedly connected to the inner wall of the oxygen gun housing 31, and a cylindrical groove 342 is provided inside the fixing frame 341, and a rotating column 343 is rotatably connected to the inner wall of the cylindrical groove 342. The rotating column 343 is impacted by the gas inside the oxygen gun, so that the rotating column 343 rotates on the inner wall of the fixing frame 341, thereby increasing the rotational kinetic energy of the cleaning mechanism 34, thereby achieving the effect of cleaning impurities.

[0027] The outside of the rotating column 343 is fixedly connected with a connecting frame 344, and the side of the connecting frame 344 away from the rotating column 343 is fixedly connected with a rotating frame 345. A triangular groove 346 is provided on the outside of the rotating frame 345, and a paddle 347 is fixedly connected to the inside of the rotating frame 345. The design of multiple paddles 347 increases the contact area, improves the rotation efficiency, and improves the cleaning effect. The rotating frame 345 performs rotational friction on the inner wall of the pipeline to clean the inner wall, reduce the crystallization of impurities on the inner wall, avoid affecting the injection effect and uniformity of oxygen, prevent the oxygen gun nozzle from being blocked, and improve the working efficiency. By providing the triangular groove 346, the heat dissipation effect is improved, the friction performance is prevented from being affected by local overheating, and the chip removal effect is increased, thereby enhancing the overall friction to a certain extent.

[0028] When in use, the composite shell 107 inside the composite mechanism 1 is docked with the top of the converter shell 101 through the first electric push rod 104 to achieve a pre-sealing effect, and then the clamping mechanism 110 supports the inner wall of the converter shell 101 to improve the sealing effect of the composite shell 107 and the converter shell 101, and inert gas is injected into the composite shell 107 through the docking connecting pipe 105, and then discharged from the hole-shaped groove 113 on the surface of the discharge plate 106, so as to inhibit the loss of air in the oxygen gun, increase the sealing effect, and improve the operating effect. When the composite shell 107 is pressed down to the external connection block 102 for docking, the spring bar 103 is squeezed to achieve a shock-absorbing and buffering effect, avoid equipment collision and wear, and avoid affecting the service life of the equipment.

[0029] When the processing mechanism 3 is docked with the composite mechanism 1, the docking mechanism 112 rubs against the friction ring 1125, and drives the annular block 1124 to slide toward the top of the composite shell 107 through the friction resistance, so that the silicone block 1126 fits on the top of the composite shell 107, thereby increasing the sealing effect, avoiding gas leakage, and improving working efficiency. At the same time, it plays a positioning role to avoid the oxygen gun from sliding down and deviating.

[0030] Then the processing mechanism 3 is extended into the interior of the composite mechanism 1 to rub against the friction mechanism 111, so as to clean the impurities and avoid clogging inside the processing mechanism 3 and affecting the operation effect.

[0031] A cleaning mechanism 34 is provided inside the processing mechanism 3, and the cleaning mechanism 34 is rotated by air delivery, so as to clean the inner wall of the pipeline, avoid affecting the injection effect and uniformity of oxygen, prevent the oxygen gun mouth from being blocked, and improve the working efficiency.

[0032] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A sealing protection device for a converter oxygen lance, characterized in that: include: A composite mechanism (1), the composite mechanism (1) being used to seal the oxygen lance of a converter; A frame (2), the frame (2) being used to support the composite structure (1); The exterior of the composite mechanism (1) is fixedly connected to the interior of the frame (2), and the inner wall of the composite mechanism (1) is plugged with a processing mechanism (3); The composite mechanism (1) comprises a converter shell (101), the top of the converter shell (101) is fixedly connected to a composite shell (107), the outside of the composite shell (107) is fixedly connected to a connecting pipe (105), the inside of the composite shell (107) is fixedly connected to a discharge plate (106), the outside of the discharge plate (106) is provided with a hole-shaped groove (113), the edge of the bottom of the composite shell (107) is fixedly connected to a funnel plate (108), the outside of the funnel plate (108) is fixedly connected to an external connecting bar (109), a clamping mechanism (110) is fixedly connected to a side of the funnel plate (108) close to the external connecting bar (109), the bottom of the composite shell (107) is fixedly connected to a friction mechanism (111), and the top of the composite shell (107) is fixedly connected to a docking mechanism (112).

2. The sealing and protective device for the oxygen lance of a converter according to claim 1, characterized in that: The outside of the composite shell (107) is fixedly connected to a first electric push rod (104), the bottom of the first electric push rod (104) is plugged with an external block (102), the bottom of the external block (102) is fixedly connected to the top side of the converter shell (101), and the outside of the external block (102) is sleeved with a spring bar (103).

3. The sealing and protective device for the oxygen lance of a converter according to claim 1, characterized in that: The clamping mechanism (110) comprises a clamping bracket (1101), one side of the outside of the clamping bracket (1101) is fixedly connected to the outside of the funnel plate (108), a second electric push rod (1102) is fixedly connected between opposite surfaces of the clamping bracket (1101), a side of the clamping bracket (1101) away from the funnel plate (108) is fixedly connected to a clamping plate (1103), and a side of the clamping plate (1103) away from the clamping bracket (1101) is fixedly connected to a clamping block (1104).

4. The sealing and protective device for the oxygen lance of a converter according to claim 1, characterized in that: The friction mechanism (111) comprises a ring-shaped outer shell (1111), the top of the ring-shaped outer shell (1111) being fixedly connected to the bottom of the composite outer shell (107), a connecting block (1112) being fixedly connected to the inner side of the ring-shaped outer shell (1111), a curved bracket (1113) being fixedly connected to one side of the outer side of the connecting block (1112), a friction block (1114) being fixedly connected between opposite surfaces of the curved bracket (1113), and a block surface groove (1115) being provided on the outer side of the friction block (1114).

5. The sealing and protective device for the oxygen lance of a converter according to claim 1, characterized in that: The docking mechanism (112) comprises a support frame (1121), the bottom of the support frame (1121) is fixedly connected to the top of the composite shell (107), a ring-shaped block (1122) is fixedly connected to one side of the outside of the support frame (1121), a telescopic rod (1123) is fixedly connected to the inner side of the ring-shaped block (1122), an end of the telescopic rod (1123) away from the inner side of the ring-shaped block (1122) is fixedly connected to an annular block (1124), a friction ring (1125) is fixedly connected to the inner side of the annular block (1124), and a silicone block (1126) is fixedly connected to the bottom of the annular block (1124).

6. The sealing and protective device for the oxygen lance of a converter according to claim 1, characterized in that: The treatment mechanism (3) comprises an oxygen lance housing (31), the inner wall of the oxygen lance housing (31) being fixedly connected to a cleaning mechanism (34), the bottom of the oxygen lance housing (31) being fixedly connected to a conical discharge port (32), and the outside of the conical discharge port (32) being fixedly connected to a discharge pipe (33).

7. The sealing and protective device for the oxygen lance of a converter according to claim 6, characterized in that: The cleaning mechanism (34) comprises a fixing frame (341), the exterior of the fixing frame (341) being fixedly connected to the inner wall of the oxygen gun housing (31), the interior of the fixing frame (341) being provided with a cylindrical groove (342), and the inner wall of the cylindrical groove (342) being rotatably connected to a rotating column (343).

8. The sealing and protective device for the oxygen lance of a converter according to claim 7, characterized in that: The outside of the rotating column (343) is fixedly connected to a connecting frame (344), a side of the connecting frame (344) away from the rotating column (343) is fixedly connected to a rotating frame (345), a triangular groove (346) is provided on the outside of the rotating frame (345), and a paddle board (347) is fixedly connected to the inside of the rotating frame (345).

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