A top gun seal passage device integrated with a clamping device

Abstract

The utility model provides a kind of with the integrated top gun sealing passage device of clamping device, comprising: water-cooling sealing base, sealing passage body, limit protection component and two clamping devices, water-cooling sealing base is located on hot bending pipe, sealing passage body is located on water-cooling sealing base, for the top gun in and out vacuum chamber, including upper guide frame, press tightly cover, sealing air bag component, sealing seat, compensator component, cooling purging structure and slag scraping plate, limit protection component includes multiple connecting rods, limit disc and protection cylinder, two clamping devices are relatively fixed in the upper of water-cooling sealing base, for clamping sealing passage body and hot bending pipe.The utility model solves the sealing air bag of vacuum sealing passage device, the burning problem of sealing packing, realizes the normal sealing of vacuum processing state, guarantees processing process.And solved the hoisting space above groove body, ensure the hoisting safety of vacuum groove and hot bending pipe, avoid operating accident.

Description

Technical Field

[0001] This utility model relates to the field of RH refining furnace technology, specifically to a top gun sealing channel device integrated with a clamping device. Background Technology

[0002] The RH vacuum degassing unit is a secondary refining process equipment for producing high-quality steel. Existing RH vacuum degassing units are equipped with multi-functional top guns to meet the refining process requirements such as oxygen blowing decarburization, chemical heating, and vacuum tank heating during steel refining. To solve the high-temperature sealing problem between the top gun and the vacuum tank during vacuum treatment and heating, it is very important to design an advanced and reliable vacuum sealing channel device.

[0003] Currently, the RH top gun sealing channel devices used domestically and internationally mainly fall into two categories: those fixed on the structural platform and those fixed on the vacuum bath hot bending tube.

[0004] Fixed type on structural platform: The sealing channel device is fixed on the structural platform of the factory building. The connection between the sealing channel device and the vacuum tank is achieved by using an expansion joint with a cylinder, so that the sealing channel device is separated from the vacuum tank and installed on the fixed platform. This not only reduces the elevation requirements of the factory building, but also facilitates the inspection and maintenance of the sealing channel device.

[0005] However, with this structure, the vacuum sealing channel is susceptible to being baked by the high-temperature gas surging out of the tank, causing the sealing airbag to burn out easily and fail to seal properly, thus affecting the normal processing. Furthermore, when moving the vacuum tank, the sealing channel device detaches from the tank, causing a large amount of hot gas to rise, frequently burning out electrical equipment such as the sealing channel expansion joint and cylinder limit switches. Damage to these electrical devices makes it impossible to confirm the expansion joint's proper placement during tank relocation, often leading to joint breakage and production accidents. Additionally, the sealing channel device is installed directly above the tank, occupying the lifting space for the vacuum tank and hot bending pipe, hindering the tank's entry and exit, and frequently damaging the expansion joint during overhead crane lifting, causing operational accidents.

[0006] Fixed type on the hot bending tube of the vacuum tank: The sealing channel device is fixed to the hot bending tube of the vacuum tank and moves with the vacuum tank. When the top gun is working, it passes through the sealing channel device into the vacuum tank for processing. When the top gun is not working for a long time, to prevent the sealing channel device from being burned by the hot gas in the vacuum tank, the sealing channel device is rotated away from the top gun hole of the vacuum tank by turning the handle, and the heat-insulating blind flange is turned into the top gun hole of the vacuum tank. This structure has the advantages of not occupying the space for lifting out the vacuum tank, and facilitating the removal and replacement of the vacuum tank and the hot bending tube.

[0007] However, installing the sealing channel device on the hot bend pipe exposes it to the high-temperature gas emanating from the vacuum chamber for extended periods, causing the sealing airbag and sealing packing to burn out easily, thus preventing vacuum sealing and affecting normal processing. Furthermore, manually switching between the sealing channel device and the heat-insulating blind flange is labor-intensive and dangerous.

[0008] In summary, existing installation techniques for sealed channels still have certain limitations. Utility Model Content

[0009] This invention was developed to solve the above-mentioned problems, and its purpose is to provide a top gun sealing channel device integrated with a clamping device.

[0010] This utility model provides a top gun sealing channel device integrated with a clamping device, characterized by comprising: a water-cooled sealing base, a sealing channel body, a limiting protection component, and two clamping devices.

[0011] The water-cooled sealing base is mounted on the hot bend pipe.

[0012] The sealing channel body, located on a water-cooled sealing base, is used for the top gun to enter and exit the vacuum chamber. It includes, from top to bottom, an upper guide frame, a clamping cover, a sealing airbag assembly, a sealing seat, a compensator assembly, a cooling and purging structure, and a slag scraper.

[0013] The limit protection assembly includes multiple connecting rods, a limit plate, and a protective cylinder. One end of each connecting rod is fixed to an upper guide frame. The limit plate is located on the other end of the connecting rods, and a limit hole is provided at the center of the limit plate. The protective cylinder is located on the limit plate and directly above the limit hole.

[0014] Two clamping devices are fixed above the water-cooled sealing base to clamp the sealing channel body and the hot bend tube, ensuring a sealed vacuum state.

[0015] The top gun sealing channel device integrated with the clamping device provided by this utility model also has the following features: the upper guide frame is screwed to the pressure cover, the sealing airbag assembly is located between the upper guide frame and the pressure cover and is tightly fitted with the upper guide frame to form a seal, the pressure cover is screwed to the sealing seat, the sealing seat is screwed to the compensator assembly, the compensator assembly is screwed to the cooling purging structure, and the cooling purging structure is screwed to the scraper plate.

[0016] Furthermore, the sealing airbag assembly includes an intermediate ring, a sealing airbag assembly air inlet, a support ring, and an airbag. The intermediate ring is located on the corresponding step of the compression cover, and its upper surface corresponds to and cooperates with the step on the lower surface of the upper guide frame. The sealing airbag assembly air inlet is located on the step at one end of the intermediate ring, and the support ring is located inside the airbag. The support ring and the airbag as a whole are located on the step inside the intermediate ring.

[0017] Furthermore, the cooling purging structure is an annular groove with a cooling air curtain inlet, a cooling water inlet, a cooling water outlet, and a gas purging inlet. The cooling purging structure can be divided into a cooling air curtain chamber and a cooling circulating water chamber. The cooling air curtain chamber is an annular chamber connected to the cooling air curtain inlet. The cooling circulating water chamber is an annular chamber located below the cooling air curtain chamber and connected to the cooling water inlet and cooling water outlet. A purging nozzle is provided below the gas purging inlet.

[0018] The top gun sealing channel device integrated with the clamping device provided by this utility model also has the following features: the clamping device includes a mounting base, a push cylinder, and a clamp. The mounting base is located on the water-cooled sealing base, the push cylinder is located on the mounting base, and the clamp is located on the output end of the push cylinder. The clamp is used to clamp the sealing channel body onto the hot bend tube under the pushing action of the push cylinder to ensure a sealed vacuum state.

[0019] The top gun sealing channel device integrated with the clamping device provided by this utility model also has the following features: the inner diameter of the protective cylinder is equal to the diameter of the top gun, and the diameter of the limiting hole is not less than the inner diameter of the protective cylinder.

[0020] Functions and effects of utility models

[0021] This utility model relates to a top-gun sealing channel device integrated with a clamping device, which solves the problem of burnt-out sealing airbags and sealing packing in vacuum sealing channel devices, achieving normal sealing during vacuum processing and ensuring the processing flow. It also solves the problem of insufficient lifting space above the tank, ensuring safe lifting of the vacuum tank and hot bending tube and preventing operational accidents. Furthermore, it improves the automation and reliability of operation, reduces manual labor and workload. In addition, it simplifies equipment composition, improves working conditions, significantly extends equipment life, and reduces production and maintenance costs. Attached Figure Description

[0022] Figure 1 This is a perspective view of the present invention;

[0023] Figure 2 This is a front view of the present invention;

[0024] Figure 3 This is a partial structural schematic diagram of the sealing channel body in this utility model;

[0025] Figure 4 This is a partial structural schematic diagram of the sealing airbag assembly in this utility model.

[0026] Explanation of reference numerals in the attached figures:

[0027] 10. Water-cooled sealing base; 20. Sealing channel body; 21. Upper guide frame; 22. Pressing cover; 23. Sealing airbag assembly; 231. Intermediate ring; 232. Air supply port of sealing airbag assembly; 233. Support ring; 234. Airbag; 24. Sealing seat; 25. Compensator assembly; 26. Cooling purging structure; 261. Cooling air curtain inlet; 262. Cooling water inlet; 263. Cooling water outlet; 264. Gas purging inlet; 265. Cooling air curtain cavity; 266. Cooling circulating water cavity; 267. Purging nozzle; 27. Slag scraper; 30. Limit protection assembly; 31. Connecting rod; 32. Limiting plate; 33. Protective cylinder; 40. Clamping device; 41. Mounting seat; 42. Propulsion cylinder; 43. Gripper; A. Top rod. Detailed Implementation

[0028] To make the technical means, creative features, objectives and effects of this utility model easy to understand, the following embodiments are described in detail with reference to the accompanying drawings.

[0029] Example 1

[0030] Figure 1 This is a perspective view of the present invention. Figure 2 This is a front view of the present invention. Figure 3 This is a partial structural schematic diagram of the sealing channel body in this utility model. Figure 4 This is a partial structural schematic diagram of the sealing airbag assembly in this utility model.

[0031] like Figures 1 to 4 As shown, this embodiment 1 provides a top gun sealing channel device integrated with a clamping device, including: a water-cooled sealing base 10, a sealing channel body 20, a limiting protection component 30, and two clamping devices 40. The water-cooled sealing base 10 is mounted on a hot-bent pipe.

[0032] like Figures 1 to 4 As shown, the sealing channel body 20 is located on the water-cooled sealing base 10 and is used for the top gun to enter and exit the vacuum chamber. It includes an upper guide frame 21, a pressing cover 22, a sealing airbag assembly 23, a sealing seat 24, a compensator assembly 25, a cooling purging structure 26, and a slag scraper 27, which are connected in sequence from top to bottom.

[0033] In this embodiment, the upper guide frame 21 is screwed to the pressing cover 22, the sealing airbag assembly 23 is disposed between the upper guide frame 21 and the pressing cover 22, and is tightly fitted with the upper guide frame 21 to form a seal, the pressing cover 22 is screwed to the sealing seat 24, the sealing seat 24 is screwed to the compensator assembly 25, the compensator assembly 25 is screwed to the cooling purging structure 26, and the cooling purging structure 26 is screwed to the scraper plate 27.

[0034] In this embodiment, the sealing airbag assembly 23 includes an intermediate ring 231, a sealing airbag assembly air supply port 232, a support ring 233, and an airbag 234. The intermediate ring 231 is disposed on the corresponding step of the pressing cover 22, and its upper surface corresponds to and cooperates with the step on the lower surface of the upper guide frame. The sealing airbag assembly air supply port 232 is located on the step at one end of the intermediate ring 231. The support ring 233 is located inside the airbag 234. The support ring 233 and the airbag 234 are located on the step inside the intermediate ring 231.

[0035] In this embodiment, the cooling purging structure 26 is an annular groove with a cooling air curtain inlet 261, a cooling water inlet 262, a cooling water outlet 263, and a gas purging inlet 264. The cooling purging structure 26 can be divided into a cooling air curtain cavity 265 and a cooling circulating water cavity 266. The cooling air curtain cavity 265 is an annular cavity connected to the cooling air curtain inlet 261. The cooling circulating water cavity 266 is an annular cavity located below the cooling air curtain cavity 265 and connected to the cooling water inlet 262 and the cooling water outlet. A purging nozzle 267 is provided below the gas purging inlet 264.

[0036] like Figure 1 and Figure 2 As shown, the limiting protection assembly 30 includes multiple connecting rods 31, a limiting plate 32, and a protective cylinder 33. One end of each connecting rod 31 is fixed to the upper guide frame 21. The limiting plate 32 is located on the other end of the connecting rods 31, and a limiting hole is provided at the center of the limiting plate 32. The protective cylinder 33 is located on the limiting plate 32 and directly above the limiting hole. The inner diameter of the protective cylinder 33 is equal to the diameter of the top gun, and the diameter of the limiting hole is not less than the inner diameter of the protective cylinder 33.

[0037] like Figure 1 and Figure 2 As shown, the clamping device 40 includes a mounting base 41, a push cylinder 42, and a gripper 43. The mounting base 41 is mounted on the water-cooled sealing base 10, the push cylinder 42 is mounted on the mounting base 41, and the gripper 43 is mounted on the output end of the push cylinder 42. The gripper 43 is used to clamp the sealing channel body 20 onto the hot-bent tube under the pushing action of the push cylinder 42, ensuring a sealed vacuum state. The push cylinder 42 is preferably a high-temperature resistant cylinder.

[0038] This invention is used in modern RH vacuum degassing refining equipment. Its function is to maintain the vacuum chamber in a vacuum state during the refining process when the top lance moves up and down. It solves the problem of high-temperature sealing between the top lance and the vacuum tank during vacuum treatment and heating, thereby improving the refining quality of molten steel.

[0039] The role and effect of the embodiments

[0040] This utility model relates to a top-gun sealing channel device integrated with a clamping device, which solves the problem of burnt-out sealing airbags and sealing packing in vacuum sealing channel devices, achieving normal sealing during vacuum processing and ensuring the processing flow. It also solves the problem of insufficient lifting space above the tank, ensuring safe lifting of the vacuum tank and hot bending tube and preventing operational accidents. Furthermore, it improves the automation and reliability of operation, reduces manual labor and workload. In addition, it simplifies equipment composition, improves working conditions, significantly extends equipment life, and reduces production and maintenance costs.

[0041] The above embodiments are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model.

Claims

1. A top gun sealing channel device integrated with a clamping device, characterized in that, include: The system includes a water-cooled sealing base, a sealing channel body, a limit protection component, and two clamping devices. The water-cooled sealing base is mounted on the hot bend pipe. The sealing channel body, located on the water-cooled sealing base, is used for the top gun to enter and exit the vacuum chamber. It includes, from top to bottom, an upper guide frame, a clamping cover, a sealing airbag assembly, a sealing seat, a compensator assembly, a cooling and purging structure, and a slag scraper. The limiting protection assembly includes multiple connecting rods, a limiting plate, and a protective cylinder. One end of each connecting rod is fixed to the upper guide frame. The limiting plate is disposed on the other end of each connecting rod, and a limiting hole is provided at the center of the limiting plate. The protective cylinder is disposed on the limiting plate and located directly above the limiting hole. The two clamping devices are fixed above the water-cooled sealing base to clamp the sealing channel body and the hot bending tube to ensure a sealed vacuum state.

2. The top gun sealing channel device integrated with the clamping device according to claim 1, characterized in that: in, The upper guide frame is screwed to the clamping cover. The sealing airbag assembly is located between the upper guide frame and the clamping cover and is tightly fitted with the upper guide frame to form a seal. The clamping cover is screwed to the sealing seat. The sealing seat is screwed to the compensator assembly. The compensator assembly is screwed to the cooling purging structure. The cooling purging structure is screwed to the slag scraper plate.

3. The top gun sealing channel device integrated with the clamping device according to claim 2, characterized in that: in, The sealing airbag assembly includes an intermediate ring, an air supply port for the sealing airbag assembly, a support ring, and an airbag. The intermediate ring is disposed on the corresponding step of the compression cover, and its upper surface corresponds to and cooperates with the step on the lower surface of the upper guide frame. The air supply port for the sealing airbag assembly is located on the step at one end of the intermediate ring. The support ring is located inside the airbag, and the support ring and the airbag as a whole are located on the step inside the intermediate ring.

4. The top gun sealing channel device integrated with the clamping device according to claim 2, characterized in that: in, The cooling purging structure is an annular groove with a cooling air curtain inlet, a cooling water inlet, a cooling water outlet, and a gas purging inlet. The cooling purging structure can be divided into a cooling air curtain chamber and a cooling circulating water chamber. The cooling air curtain chamber is an annular chamber connected to the cooling air curtain inlet. The cooling circulating water chamber is an annular chamber located below the cooling air curtain chamber and connected to the cooling water inlet and the cooling water outlet. A purging nozzle is provided below the gas purging inlet.

5. The top gun sealing channel device integrated with the clamping device according to claim 1, characterized in that: in, The clamping device includes a mounting base, a push cylinder, and a clamp. The mounting base is disposed on the water-cooled sealing base, the push cylinder is disposed on the mounting base, and the clamp is disposed on the output end of the push cylinder. The clamp is used to clamp the sealing channel body on the hot bend tube under the pushing action of the push cylinder to ensure a sealed vacuum state.

6. The top gun sealing channel device integrated with the clamping device according to claim 1, characterized in that: in, The inner diameter of the protective cylinder is equal to the diameter of the top gun, and the diameter of the limiting hole is not less than the inner diameter of the protective cylinder.

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