Pipeline seamless butt joint mechanism, movable dustproof device and ladle refining system

Abstract

The utility model provides a pipeline seamless butt joint mechanism, a movable dust removal device and a steel ladle refining system, the pipeline seamless butt joint mechanism comprises a sealing sleeve and a first driving assembly, and the sealing sleeve is movably arranged on a first butt joint pipeline in a sleeving mode; the first driving assembly is in driving connection with the sealing sleeve; when the first butt-joint pipeline and the second butt-joint pipeline are aligned, the first driving assembly can drive the sealing sleeve to move and wrap and seal an alignment gap between the first butt-joint pipeline and the second butt-joint pipeline. The sealing sleeve and the first driving assembly are matched with each other, after the first butt joint pipeline and the second butt joint pipeline are aligned, seamless butt joint can be achieved, and therefore the sealing performance of pipeline butt joint is effectively improved, air leakage in the dust removal process is reduced, and the dust removal effect is remarkable.

Description

Technical Field

[0001] This utility model relates to the field of ladle refining technology, specifically to a seamless pipeline connection mechanism, a mobile dustproof device, and a ladle refining system. Background Technology

[0002] Ladle refining is a crucial step in converter steelmaking, involving heating molten steel in the ladle using an electric arc heating system. During refining, the steel undergoes sequential heating, argon agitation, desulfurization, deoxidation, and slag formation to improve its purity and quality. This process generates a large amount of dust-laden flue gas, which requires organized collection.

[0003] Currently, mobile dust collection devices are commonly used to collect flue gas. These devices consist of a mobile dust collection hood with tracks. During dust collection, the hood moves, and the movable pipes on it move synchronously to align with the fixed pipes on the equipment to be dusted. Then, the dust collector starts and adjusts the airflow to create negative pressure in the system, thus collecting the flue gas generated by the equipment. In this process, limit switches are usually installed to ensure precise alignment between the movable and fixed pipes. However, even with these measures, there are still gaps between the movable and fixed pipes, which can lead to airflow leakage and affect the dust collection effect. Utility Model Content

[0004] The purpose of this utility model is to provide a seamless pipeline connection mechanism, a mobile dustproof device, and a ladle refining system to solve the aforementioned technical problems in the prior art; the preferred technical solutions among the many technical solutions provided by this utility model can produce many technical effects, as detailed below.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] This utility model provides a seamless pipe docking mechanism, including a sealing sleeve and a first driving component, wherein: the sealing sleeve is movably sleeved on a first docking pipe; the first driving component is drivenly connected to the sealing sleeve; when the first docking pipe and the second docking pipe are aligned, the first driving component can drive the sealing sleeve to move and wrap and seal the alignment gap between the first docking pipe and the second docking pipe.

[0007] Preferably, the first driving component includes a first telescopic component, and the telescopic end of the first telescopic component is driven to be connected to the sealing sleeve.

[0008] Preferably, the inner wall of the sealing sleeve is provided with a rolling element, and the sealing sleeve rolls against the outer wall of the first docking pipe through the rolling element.

[0009] Preferably, the inner wall of the sealing sleeve is provided with a first sealing baffle; the outer wall of the first connecting pipe is provided with a second sealing baffle; the first sealing baffle and the second sealing baffle are staggered in the radial direction.

[0010] Preferably, the seamless pipe connection mechanism includes a limiting component for limiting the movement position of the sealing sleeve.

[0011] Preferably, the limiting component includes a limit switch, which is disposed on the moving path of the sealing sleeve and electrically connected to the first driving component; when the sealing sleeve moves to the position of covering the alignment gap, the limit switch can be triggered to control the first driving component to stop operating.

[0012] Preferably, the seamless pipe connection mechanism includes a locking component and a second driving component, wherein: the locking component includes a locking member, which is movably disposed on the sealing sleeve; the second driving component is fixedly disposed on the sealing sleeve and drivenly connected to the locking member, and the second driving component can drive the locking member to press against the second connecting pipe to lock the sealing sleeve to the position of covering the alignment gap.

[0013] Preferably, a pressure-bearing member for bearing the pressure of the locking member is fixedly provided on the second docking pipe; when the sealing sleeve moves to the position of wrapping the alignment gap, the locking member corresponds to the pressure-bearing member.

[0014] Preferably, the locking assembly includes a movable frame, wherein: the movable frame is movably disposed along the radial direction of the sealing sleeve; the locking member is fixedly disposed on the movable frame and moves synchronously with the movable frame.

[0015] Preferably, the second drive assembly includes a second telescopic assembly and a transmission assembly. The telescopic end of the second telescopic assembly is connected to the movable frame via the transmission assembly. When the telescopic end of the second telescopic assembly extends, it can move the movable frame towards the center line of the sealing sleeve, so that the locking member presses against the pressure-bearing member. When the telescopic end of the second telescopic assembly retracts, it can move the movable frame away from the center line of the sealing sleeve, so that the locking member disengages from the pressure-bearing member.

[0016] Preferably, the second drive assembly includes an elastic buffer member, the two ends of which are connected to the sealing sleeve and the movable frame, respectively; when the movable frame moves toward the center line of the sealing sleeve, the elastic buffer member deforms.

[0017] Preferably, the transmission assembly is configured as a linkage assembly, and the output end of the linkage assembly is connected to two locking assemblies, which are disposed opposite to each other on the sealing sleeve; the telescopic end of the second telescopic assembly can extend or retract, thereby driving the two locking assemblies to move toward or away from each other.

[0018] This utility model provides a mobile dust removal device, including any of the aforementioned seamless pipe connection mechanisms.

[0019] This utility model provides a ladle refining system, including the aforementioned mobile dust removal device.

[0020] The seamless pipe connection mechanism, mobile dust removal device, and ladle refining system provided by this utility model have at least the following beneficial effects:

[0021] The seamless pipe connection mechanism includes a sealing sleeve and a first drive assembly. The sealing sleeve is used for the seamless connection of the first and second pipe connections, and the first drive assembly provides power for the connection action of the sealing sleeve.

[0022] The sealing sleeve is movably fitted onto the first docking pipe, and the first driving component is drivenly connected to the sealing sleeve. During dust removal, the first docking pipe and the second docking pipe are aligned, the first driving component is activated, and the sealing sleeve is driven to move, thereby wrapping and sealing the alignment gap between the first docking pipe and the second docking pipe, thus achieving seamless docking of the docking pipes. At this time, the sealing sleeve forms a wrapping seal on the docking pipe, which can effectively ensure the sealing of the pipe docking, thereby effectively reducing air leakage and ensuring the dust removal effect.

[0023] This invention, through the cooperation of a sealing sleeve and a first driving component, enables seamless connection after the first and second connecting pipes are aligned, thereby effectively improving the sealing performance of the pipe connection, reducing air leakage during dust removal, and achieving a significant dust removal effect. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of this utility model;

[0026] Figure 2 This is a schematic diagram showing the first and second docking pipes of this utility model in an aligned state;

[0027] Figure 3 This is an enlarged view of part A of this utility model;

[0028] Figure 4 This is an enlarged view of part B of this utility model;

[0029] Figure 5 This is a schematic diagram of the first and second connecting pipes of this utility model in a seamless connection state;

[0030] Figure 6 This is an enlarged view of part C of this utility model;

[0031] Figure 7 This is a cross-sectional schematic diagram of this utility model;

[0032] Figure 8 This is a cross-sectional schematic diagram of the present invention.

[0033] Figure 9 This is a cross-sectional view of the present invention.

[0034] Figure Labels

[0035] 1. Sealing sleeve; 11. Rolling element; 12. First sealing baffle; 2. First drive assembly; 21. First telescopic assembly; 3. Limiting assembly; 31. Limit switch; 4. Locking assembly; 41. Locking element; 42. Movable frame; 5. Second drive assembly; 51. Second telescopic assembly; 52. Linkage assembly; 53. Elastic buffer; 6. First docking pipe; 61. Second sealing baffle; 7. Second docking pipe; 71. Pressure bearing element. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0037] Example 1:

[0038] This utility model provides a seamless pipe connection mechanism, mainly for seamless pipe connection of mobile dust removal devices.

[0039] refer to Figures 1 to 6 As shown, the seamless pipe connection mechanism includes a sealing sleeve 1 and a first drive assembly 2.

[0040] The sealing sleeve 1 is movably fitted onto the first docking pipe 6; the first driving assembly 2 is drivingly connected to the sealing sleeve 1 and can drive the sealing sleeve 1 to move along the first docking pipe 6.

[0041] During dust removal, the first docking pipe 6 and the second docking pipe 7 are aligned. At this time, the first driving component 2 is activated, driving the sealing sleeve 1 to move and wrap around the alignment gap of the first docking pipe 6 and the second docking pipe 7. At this time, the sealing sleeve 1 forms a wrapping seal on the alignment gap.

[0042] In existing technologies, since negative pressure dust removal is used, dust removal often begins only by aligning the first connecting pipe 6 and the second connecting pipe 7. When the air volume is small, there is a problem of smoke and dust leakage. Therefore, it is usually necessary to increase the air volume to ensure the dust removal effect, which will increase energy consumption and dust removal costs.

[0043] This invention utilizes the cooperation between the sealing sleeve 1 and the first driving component 2. After the first docking pipe 6 and the second docking pipe 7 are aligned, the sealing sleeve 1 is driven to move and wrap and seal the alignment gap between the first docking pipe 6 and the second docking pipe 7. This effectively reduces air leakage, improves dust removal efficiency, and saves energy.

[0044] In addition, in order to reduce air leakage, existing technologies often use high-precision limit switches to restrict the movement of the mobile dust collector hood, so that the first docking pipe 6 and the second docking pipe 7 are closely aligned. During the limiting process, due to the large mass of the mobile dust collector hood, there is a large inertia, so the first docking pipe 6 and the second docking pipe 7 collide. Over time, this will damage the pipes.

[0045] This application eliminates the need for the first mating pipe 6 and the second mating pipe 7 to be tightly aligned by driving the sealing sleeve 1 to move and wrap around the sealing gap. Only the positions of the two pipes need to correspond. This effectively reduces the accuracy of the limit switch in the prior art, avoids damage to the pipes due to collisions, and extends the service life of the equipment.

[0046] Example 2:

[0047] Example 2 is based on Example 1:

[0048] like Figures 1 to 6 As shown, the first drive assembly 2 includes a first telescopic assembly 21, and the telescopic end of the first telescopic assembly 21 is driven to be connected to the sealing sleeve 1.

[0049] The telescopic component is used as the driving component for driving the sealing sleeve 1, which has sufficient power and sensitive operation.

[0050] The first telescopic component 21 can be a pneumatic telescopic component, a hydraulic telescopic component, or an electric telescopic component, with a cylinder being preferred.

[0051] As an optional implementation, the sealing sleeve 1 includes a first tube body and a second tube body integrally disposed thereon, wherein the first tube body is a circular tube structure and the second tube body is a square tube structure.

[0052] The inner wall of the first tube is provided with an installation groove, and a rolling element 11 is rotatably disposed in the installation groove. The rolling element 11 can be a roller, a shaft, or a ball.

[0053] The sealing sleeve 1 rolls against the outer wall of the first mating pipe 6 via the rolling element 11.

[0054] The sealing sleeve 1 and the first mating pipe 6 use rolling friction, resulting in low frictional resistance.

[0055] As an optional implementation, the inner wall of the sealing sleeve 1 is provided with a first sealing baffle 12, which is an annular baffle and is arranged around the inner wall of the sealing sleeve 1.

[0056] A second sealing baffle 61 is provided on the outer wall of the first docking pipe 6. The second sealing baffle 61 is configured as an annular baffle and is fixedly sleeved on the outer wall of the first docking pipe 6.

[0057] The first sealing baffle 12 and the second sealing baffle 61 are offset in the radial direction.

[0058] When the sealing sleeve 1 moves to the position that covers the alignment gap, the first sealing baffle 12 and the second sealing baffle 61 form a misaligned seal.

[0059] Preferably, the first sealing baffle 12 is configured as an inverted F-shape, which includes a first vertical sealing plate connected to the sealing sleeve 1 and two first horizontal sealing plates vertically connected to the first vertical sealing plate; the second sealing baffle 61 is configured as a T-shape, which includes a second vertical sealing plate connected to the first docking pipe 6 and a second horizontal sealing plate vertically disposed at the end of the second vertical sealing plate; when the sealing sleeve 1 moves to the position of wrapping the alignment gap, the second horizontal sealing plate is inserted between the two second horizontal sealing plates, thus forming a labyrinth-type misaligned seal.

[0060] In practical applications, the number of the first sealing baffle 12 and the second sealing baffle 61 can be set to multiple, and they correspond one-to-one.

[0061] Alternatively, a second sealing baffle is also provided on the outer wall of the second connecting pipe 7, and correspondingly, a first sealing baffle is provided on the inner wall of the sealing sleeve 1, which corresponds to the second sealing baffle, so that misaligned seals can be formed on both sides of the alignment gap.

[0062] As an optional implementation, the seamless pipe connection mechanism includes a limiting component 3, which is used to limit the movement position of the sealing sleeve 1.

[0063] As an optional implementation, the limiting component 3 includes a limit switch 31, which is disposed on the moving path of the sealing sleeve 1 and electrically connected to the first drive component 2.

[0064] During the seamless docking process of the first docking pipe 6 and the second docking pipe 7, when the sealing sleeve 1 moves to the position that wraps the alignment gap, it can trigger the limit switch 31 to act, thereby controlling the first drive component 2 to stop, and the limiting effect is significant.

[0065] As an optional implementation, the seamless pipe connection mechanism includes a locking component 4 and a second driving component 5. The locking component 4 includes a locking element 41, which is movably disposed on the sealing sleeve 1. The second driving component 5 is fixedly disposed on the sealing sleeve 1 and is drivenly connected to the locking element 41.

[0066] During the seamless docking process, when the sealing sleeve 1 moves and wraps around the alignment gap, the second drive assembly 5 is activated, driving the locking member 41 to actuate, thereby pressing against the second docking pipe 7, thus achieving the locking of the sealing sleeve 1.

[0067] As an optional implementation, a pressure-bearing member 71 for bearing the pressure of the locking member 41 is fixedly provided on the second docking pipe 7. When the sealing sleeve 1 moves to the position of wrapping the alignment gap, the locking member 41 corresponds to the pressure-bearing member 71.

[0068] The pressure-bearing component 71 effectively prevents the locking component 41 from directly pressing against the second connecting pipe 7.

[0069] Specifically, the locking element 41 is a locking plate, and the pressure-bearing element 71 is a pressure-bearing sleeve, which is a square tube sleeve that is fixedly sleeved on the second tube body.

[0070] As an optional implementation, the locking assembly 4 includes a movable frame 42, which is movably disposed along the radial direction of the sealing sleeve 1; the locking member 41 is fixedly disposed on the movable frame 42 and moves synchronously with the movable frame 42.

[0071] The movable frame 42 is installed using the locking element 41 on one hand, and is also connected to the second drive assembly 5 on the other hand to transmit the power of the second drive assembly 5.

[0072] As an optional implementation, the second drive assembly 5 includes a second telescopic assembly 51 and a transmission assembly, wherein the telescopic end of the second telescopic assembly 51 is connected to the movable frame 42 through the transmission assembly.

[0073] The second telescopic component 51 can be a pneumatic telescopic component, a hydraulic telescopic component, or an electric telescopic component, preferably a cylinder.

[0074] The extension of the telescopic end of the second telescopic component 51 can drive the movable frame 42 to move closer to the center line of the sealing sleeve 1, thereby causing the locking member 41 to press against the pressure bearing member 71 and lock the position of the sealing sleeve 1.

[0075] The retraction action of the telescopic end of the second telescopic component 51 can drive the movable frame 42 to move away from the center line of the sealing sleeve 1, thereby disengaging the locking member 41 from the pressure member 71 and releasing the locking state of the sealing sleeve 1.

[0076] As an optional implementation, the second drive assembly 5 includes an elastic buffer 53, the two ends of which are connected to the sealing sleeve 1 and the movable frame 42 respectively; when the movable frame 42 moves toward the center line of the sealing sleeve 1, the elastic buffer 53 deforms.

[0077] Specifically, a guide post is fixedly installed on the sealing sleeve 1, and a guide hole is provided on the movable frame 42 corresponding to the position of the guide post. The guide post slides through the guide hole. The elastic buffer 53 is a spring, which is sleeved on the guide post and its two ends abut against the movable frame 42 and the sealing sleeve 1 respectively. Thus, when the movable frame 42 moves towards the center line of the sealing sleeve 1, the elastic buffer 53 undergoes compression deformation, which has a good buffering effect.

[0078] Furthermore, an upper limit bolt is fixedly installed on the guide column. The upper limit bolt is located above the movable frame 42 and is used to limit the upper limit position of the movable frame 42.

[0079] As an optional implementation, the transmission component is configured as a linkage assembly 52, and the output end of the linkage assembly 52 is connected to two locking components 4. The two locking components 4 are arranged opposite to each other on the sealing sleeve 1. The telescopic end of the second telescopic component 51 can extend and retract, which can drive the two locking components 4 to move towards or away from each other.

[0080] Furthermore, the locking assembly 4 has four brushes, and the number of second telescopic assemblies 51 is set to two. One second telescopic assembly 51 corresponds to two locking plates. When the second telescopic assembly 51 is in the retracted state, the four locking plates press against the periphery of the pressure sleeve and form a seal with the pressure sleeve. Thus, the locking assembly 4 is also a sealing assembly, further improving the sealing effect.

[0081] Example 3

[0082] Example 3 is based on Example 2:

[0083] This utility model provides a mobile dust removal device, which includes the seamless pipe connection mechanism.

[0084] Preferably, the first connecting pipe 6 is a fixed pipe for the dust removal equipment, and the second connecting pipe 7 is a movable pipe for a mobile dust removal hood.

[0085] Example 4

[0086] Example 4 is based on Example 3:

[0087] This utility model provides a ladle refining system, which includes the mobile dust removal device.

[0088] In the description of this application, it should be understood that the terms "upper", "lower", "inner", "outer", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0089] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" or "several" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0090] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0091] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A seamless pipe connection mechanism, characterized in that, Includes a sealing sleeve and a first drive assembly, wherein: The sealing sleeve is movably fitted onto the first docking pipe; The first drive assembly is driven to connect with the sealing sleeve; When the first docking pipe and the second docking pipe are aligned, the first driving component can drive the sealing sleeve to move and wrap and seal the alignment gap between the first docking pipe and the second docking pipe.

2. The seamless pipe connection mechanism according to claim 1, characterized in that, The first driving component includes a first telescopic component, and the telescopic end of the first telescopic component is driven to be connected to the sealing sleeve. The inner wall of the sealing sleeve is provided with a rolling element, and the sealing sleeve rolls against the outer wall of the first docking pipe through the rolling element.

3. The seamless pipe connection mechanism according to claim 1, characterized in that, The inner wall of the sealing sleeve is provided with a first sealing baffle; A second sealing baffle is provided on the outer wall of the first docking pipe; The first sealing baffle and the second sealing baffle are offset in the radial direction.

4. The seamless pipe connection mechanism according to claim 1, characterized in that, The seamless pipe connection mechanism includes a limiting component for limiting the movement position of the sealing sleeve; The limiting component includes a limit switch, which is disposed on the moving path of the sealing sleeve and electrically connected to the first driving component; when the sealing sleeve moves to the position of covering the alignment gap, the limit switch can be triggered to control the first driving component to stop operating.

5. The seamless pipe connection mechanism according to claim 1, characterized in that, The seamless pipe connection mechanism includes a locking component and a second drive component, wherein: The locking assembly includes a locking element, which is movably disposed on the sealing sleeve; The second driving component is fixedly mounted on the sealing sleeve and drivenly connected to the locking member. The second driving component can drive the locking member to press against the second docking pipe to lock the sealing sleeve to the position that covers the alignment gap.

6. The seamless pipe connection mechanism according to claim 5, characterized in that, The second connecting pipe is fixedly provided with a pressure-bearing component for bearing the pressure of the locking component; when the sealing sleeve moves to the position of covering the alignment gap, the locking component corresponds to the pressure-bearing component; The locking assembly includes a movable frame that is movably disposed along the radial direction of the sealing sleeve; the locking element is fixedly disposed on the movable frame and moves synchronously with the movable frame.

7. The seamless pipe connection mechanism according to claim 6, characterized in that, The second drive assembly includes a second telescopic assembly and a transmission assembly. The telescopic end of the second telescopic assembly is connected to the movable frame through the transmission assembly. When the telescopic end of the second telescopic assembly extends, it can move the movable frame towards the center line of the sealing sleeve, so that the locking member presses against the pressure-bearing member. When the telescopic end of the second telescopic assembly retracts, it can move the movable frame away from the center line of the sealing sleeve, so that the locking member disengages from the pressure-bearing member. The second drive assembly further includes an elastic buffer, the two ends of which are connected to the sealing sleeve and the movable frame, respectively; when the movable frame moves toward the center line of the sealing sleeve, the elastic buffer deforms.

8. The seamless pipe connection mechanism according to claim 7, characterized in that, The transmission assembly is configured as a linkage assembly, and the output end of the linkage assembly is connected to two locking assemblies, which are arranged opposite to each other on the sealing sleeve. The telescopic movement of the telescopic end of the second telescopic component can drive the two locking components to move towards or away from each other.

9. A mobile dust removal device, characterized in that, Includes the pipe seamless connection mechanism as described in any one of claims 1-8.

10. A ladle refining system, characterized in that, Includes the mobile dust removal device as described in claim 9.

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