A hoisting guide structure and method for steel-lined modules

Abstract

This invention discloses a hoisting guide structure and method for steel-lined modules, relating to the field of steel-lined module hoisting technology. The hoisting guide structure includes a guide column, a flared auxiliary limiting device, an adjusting component, a primary radial limiting plate, and a secondary radial limiting plate. The guide column is installed on the cage beam at the upper opening of the module. The flared auxiliary limiting device is installed on the angle steel back rib at the lower opening of the hoisting module. The adjusting component is sleeved on the upper surface of the flared auxiliary limiting device, and one side of the adjusting component is fixed to the angle steel back rib. The adjusting component is adapted to adjust the circumferential radial positioning of the guide column. The primary radial limiting plate includes a first radial limiting plate and a second radial limiting plate. The secondary radial limiting plate includes a third radial limiting plate and a fourth radial limiting plate. This invention also provides a hoisting guide method that reduces adjustment time, significantly improves positioning accuracy, and ensures that the base plate does not deform after the module is hoisted as a whole.

Description

Technical Field

[0001] This invention relates to the field of hoisting technology for steel lining modules in nuclear power plants, and specifically to a hoisting guide structure and method for steel lining modules. Background Technology

[0002] The VVER-1200 reactor is the latest third-generation nuclear power technology. During the civil construction phase, because the steel liner module is a thin-walled cylindrical structure with multiple layers of ring-shaped steel bars on the outside, it is necessary to specifically solve the positioning and guidance problem of the two different modules in order to realize the construction of the combined modules.

[0003] The steel liner of the nuclear power plant containment vessel is located on the inner surface of the cylindrical concrete containment vessel of the nuclear island. Together with the prestressed concrete structure, it forms the third safety barrier of the nuclear reactor. During construction, the steel liner is laid before the concrete. During concrete construction, it serves as an internal formwork, designed to contain aerosolized radioactive materials and provide a sealing function. To reduce high-altitude work during the construction of the steel liner and minimize overlap with concrete construction in time and space, thereby shortening the construction cycle of the nuclear power plant, a modular construction process is proposed. This involves assembling the steel liner into a cylindrical structure at the assembly site according to the crane's lifting capacity, and then hoisting it section by section to the installation location for connection.

[0004] Due to the large size (diameter up to 44m), thin walls (wall thickness 6mm), offset center of gravity, and low stiffness of the steel lining, the structural stability during the overall hoisting of the assembled steel lining modules is difficult to guarantee. In order to achieve modular overall hoisting construction of the steel lining, special hoisting equipment was designed to ensure the structural stability and safety and reliability of the hoisting process.

[0005] However, in existing nuclear power projects, the hoisting and positioning of steel-lined modules generally uses relatively simple guide plates and limiting plates. The positioning process mainly relies on manual adjustment and guidance using tools, which results in long module positioning and adjustment times, slow positioning progress, and the risk of damaging the base material with the tools used. Summary of the Invention

[0006] In view of this, the present invention provides a hoisting guide structure and method for steel lining modules to solve the technical problems in the prior art where steel lining modules are not securely hoisted, are prone to deformation during hoisting, and require long adjustment times.

[0007] To address the shortcomings of the aforementioned technologies, the present invention provides the following technical solution:

[0008] The first objective of this invention is to provide a hoisting guide structure for a steel lining module, used to guide the hoisting module and the positioning module, wherein the positioning module is located directly below the hoisting module, and the hoisting guide structure includes:

[0009] The guide column is installed on the cage beam at the upper opening of the positioning module;

[0010] A horn-shaped auxiliary limiting device is fixedly installed on the angle steel back rib at the lower opening of the hoisting module;

[0011] An adjustment component is sleeved on the upper surface of the horn-shaped auxiliary limiting device, and the side of the adjustment component near the hoisting module is fixed on the back rib of the angle steel. The adjustment component is suitable for adjusting the circumferential and radial positioning of the guide column.

[0012] The primary radial limiting plate includes a first radial limiting plate disposed at the upper end of the positioning module and a second radial limiting plate disposed at the lower end of the hoisting module;

[0013] The secondary radial limiting plate includes a third radial limiting plate disposed on the circumferential angle steel at the upper opening of the positioning module and a fourth radial limiting plate disposed at the lower opening of the hoisting module;

[0014] The hoisting module is adapted to be assembled onto the positioning module under the combined action of the guide column, the horn-shaped auxiliary limiting device, the adjusting component, the primary radial limiting plate, and the secondary radial limiting plate.

[0015] Furthermore, the guide column includes a round tube and a tip integrally connected to the top of the round tube. The diameter of the round tube is 158-160mm and the height is 9-11mm. The height of the tip is 5-7mm.

[0016] Furthermore, the horn-shaped auxiliary limiting device is a conical truncated pyramid structure formed from a 10mm steel plate, and the vertical direction of the conical truncated pyramid structure is provided with a through central hole, which is suitable for the circular tube to pass through.

[0017] Furthermore, the adjustment assembly includes a box structure with a top opening and adjustment screws that extend horizontally and vertically through the box structure away from the hoisting module and the positioning module. The adjustment screws are adapted to rotate and abut against the outer surface of the circular tube.

[0018] Furthermore, the thickness of both the primary radial limiting plate and the secondary radial limiting plate is 15-17mm, and both the primary radial limiting plate and the secondary radial limiting plate are made of Q235B steel.

[0019] Furthermore, both the hoisting module and the positioning module include a steel lining, angle steel welded to the steel lining, embedded parts and through parts, and a steel mesh.

[0020] Furthermore, the number of the first radial limiting plates is 8, the number of the third radial limiting plates is 36, and the first radial limiting plates and the third radial limiting plates are distributed at intervals on the circumferential angle steel at the upper opening of the positioning module.

[0021] Furthermore, there are 8 second radial limiting plates and 36 fourth radial limiting plates, which are distributed at intervals at the lower end of the hoisting module.

[0022] A second objective of this invention is to provide a hoisting and guiding method for steel-lined modules, employing the hoisting and guiding structure for steel-lined modules as described above. The hoisting and guiding method includes the following steps:

[0023] S 100 Install guide columns on the cage beam at the top of the positioning module;

[0024] S 200 Install a horn-shaped auxiliary limiting device on the angle steel back rib on the outside of the hoisting module;

[0025] S 300 Eight first radial limiting plates and 36 third radial limiting plates are installed on the positioning module;

[0026] S 400 Eight second radial limiting plates and 36 fourth radial limiting plates are installed on the hoisting module;

[0027] S 500 The hoisting module is hoisted and assembled onto the positioning module using a crane and hoisting slings.

[0028] Furthermore, in step S 500 This also includes the following steps:

[0029] The lifting lugs are evenly distributed in a ring on the steel lining of the lifting module and the base plate module.

[0030] A disc-shaped space frame is used for hoisting, and the lower end of the disc-shaped space frame has a lifting point corresponding to the hoisting lugs;

[0031] The lifting point at the lower end of the disc-shaped space frame is connected to the corresponding lifting lug.

[0032] Compared with the prior art, the present invention has at least the following beneficial effects:

[0033] 1. The hoisting guide structure for the steel lining module consists of guide columns, a flared auxiliary limiting device, an adjusting assembly, a primary radial limiting plate, and a secondary radial limiting plate. Based on traditional guide devices, it adds a guide structure with higher adjustment precision and greater convenience. The vertically arranged guide columns, flared auxiliary limiting devices, and adjusting assemblies together form a circumferential adjustment mechanism. The flared auxiliary limiting device is welded to the bottom of the adjusting assembly, which in turn is welded to the angle steel back rib at the bottom of the hoisting module. The guide columns are installed on the cage beam at the top of the lower positioning module. During the descent and positioning of the hoisting module, the flared auxiliary limiting device guides the top tip of the guide column through the adjusting assembly, and the nut on the adjusting assembly achieves precise circumferential and radial positioning of the module. The hoisting guide structure runs through the combined module, guiding the module to precise positioning during the hoisting phase. After hoisting, the primary and secondary radial limiting plates counteract the deformation of the steel lining wall panel at the module contact point, fully utilizing the role of the hoisting guide structure at different construction stages.

[0034] 2. By designing a hoisting guide structure for the steel-lined modules, the combination of two independent modules with different characteristics is achieved. The node design is simple, the materials are readily available and recyclable, and the processing technology is simple. The components are made of universal materials, with few specifications and types. They can be processed in the workshop and installed on site, which facilitates the standardization and control of specifications. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the planar arrangement of the hoisting guide structure for the steel lining module on the hoisting module and the positioning module in an embodiment of the present invention.

[0036] Figure 2 This is a schematic front view of the hoisting guide structure for the steel lining module in an embodiment of the present invention;

[0037] Figure 3 This is a schematic diagram of the planar arrangement of the second radial limiting plate and the fourth radial limiting plate on the hoisting module in an embodiment of the present invention;

[0038] Figure 4 This is a schematic diagram of the installation structure of the fourth radial limiting plate in an embodiment of the present invention;

[0039] Figure 5 This is a schematic diagram of the installation structure of the second radial limiting plate in an embodiment of the present invention;

[0040] Figure 6 This is a schematic diagram of the planar arrangement of the first radial limiting plate and the third radial limiting plate on the positioning module in an embodiment of the present invention;

[0041] Figure 7This is a schematic diagram of the installation structure of the third radial limiting plate in an embodiment of the present invention;

[0042] Figure 8 This is a schematic diagram of the installation structure of the first radial limiting plate in an embodiment of the present invention;

[0043] Figure 9 This is a schematic diagram of the main structure of the guide column in an embodiment of the present invention;

[0044] Figure 10 This is a top view of the guide column structure in an embodiment of the present invention;

[0045] Figure 11 This is a schematic diagram of the structure of the fourth radial limiting plate in an embodiment of the present invention;

[0046] Figure 12 This is a schematic diagram of the structure of the second radial limiting plate in an embodiment of the present invention;

[0047] Figure 13 This is a schematic diagram of the structure of the third radial limiting plate in an embodiment of the present invention;

[0048] Figure 14 This is a schematic diagram of the structure of the first radial limiting plate in an embodiment of the present invention.

[0049] Explanation of reference numerals in the attached figures:

[0050] 100 - Lifting guide structure;

[0051] 1-Guide column; 11-Round tube; 12-Tip;

[0052] 2- Horn-shaped auxiliary limiting device;

[0053] 3-First-level radial limiting plate;

[0054] 31-First radial limiting plate; 32-Second radial limiting plate;

[0055] 4-Secondary radial limiting plate

[0056] 41 - Third radial limiting plate; 42 - Fourth radial limiting plate;

[0057] 5-Adjustment components;

[0058] 6-Lifting module; 61-Angle steel back rib;

[0059] 7-Positioning module; 71-Cage frame crossbeam. Detailed Implementation

[0060] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. 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.

[0061] In the description of this invention, it should be noted that the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0062] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can also refer to the internal connection of two components; and they can refer to a wireless connection or a wired connection. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0063] In existing technologies, the steel lining module hoisting and positioning guidance systems in nuclear power engineering are mostly simple guide plates and limit plates. The positioning process relies entirely on manual tools for continuous adjustment and guidance. During the module positioning process, not only is the adjustment time long and the positioning progress very slow, but the tools used also pose a risk of damaging the base material.

[0064] The steel lining reinforcement and steel lining composite module of the reactor containment vessel is a first-time attempt at combined construction technology. Because the steel lining module is a thin-walled cylindrical structure with multiple layers of ring-shaped reinforcement on the outside, it is necessary to specifically solve the positioning and guidance problem of the two different modules in order to realize the construction of the composite module.

[0065] Therefore, in response to the above technical issues, Figure 1-14 The diagram shows a hoisting guide structure 100 for a steel lining module, used to guide the hoisting module 6 and the positioning module 7. The positioning module 7 is located directly below the hoisting module 6. The hoisting guide structure 100 includes a guide column 1, a flared auxiliary limiting device 2, an adjusting assembly 5, a primary radial limiting plate 3, and a secondary radial limiting plate 4, wherein:

[0066] The guide column 1 is installed on the cage beam 71 at the upper opening of the positioning module 7.

[0067] The horn-shaped auxiliary limiting device 2 is fixedly installed on the angle steel back rib 61 at the lower opening of the hoisting module 6.

[0068] The adjustment component 5 is sleeved on the upper surface of the horn-shaped auxiliary limiting device 2, and the side of the adjustment component 5 closest to the hoisting module 6 is fixed on the angle steel back rib 61. The adjustment component 5 is suitable for adjusting the circumferential and radial positioning of the guide column 1.

[0069] The primary radial limiting plate 3 includes a first radial limiting plate 31 located at the upper end of the positioning module 7 and a second radial limiting plate 32 located at the lower end of the hoisting module 6.

[0070] The secondary radial limiting plate 4 includes a third radial limiting plate 41 located on the circumferential angle steel at the upper opening of the positioning module 7 and a fourth radial limiting plate 42 located at the lower opening of the hoisting module 6.

[0071] The hoisting module 6 is suitable for being assembled onto the positioning module 7 under the combined action of the guide column 1, the horn-shaped auxiliary limiting device 2, the adjusting component 5, the primary radial limiting plate 3, and the secondary radial limiting plate 4.

[0072] Specifically, in the embodiments of the present invention, the hoisting guide structure 100 of the steel lining module is composed of guide columns 1, horn-shaped auxiliary limiting devices 2, adjusting components 5, primary radial limiting plates 3, and secondary radial limiting plates 4, etc. Based on traditional guide devices, it adds a guide structure with higher adjustment accuracy and easier adjustment, wherein:

[0073] The vertically arranged guide column 1, the horn-shaped auxiliary limiting device 2, and the adjusting component 5 together form a circumferential adjustment. The horn-shaped auxiliary limiting device 2 is welded and installed below the adjusting component 5, while the adjusting component 5 is welded and installed on the angle steel back rib 61 at the lower opening of the hoisting module 6. The guide column 1 is installed on the cage beam 71 at the upper opening of the lower positioning module 7. During the descent and positioning process of the hoisting module 6, the horn-shaped auxiliary limiting device 2 guides the top tip of the guide column 1 through the adjusting component 5, and the precise circumferential and radial positioning of the module is achieved by the nut on the adjusting component 5.

[0074] Therefore, the hoisting guide structure 100 runs through the combined module, playing a role in guiding the module to be accurately positioned during the hoisting stage; after the hoisting is completed, the first-level radial limiting plate 3 and the second-level radial limiting plate 4 play a role in anti-deformation of the steel lining wall panel at the contact point of the module, giving full play to the role of the hoisting guide structure in different construction stages.

[0075] In addition, by designing the hoisting guide structure 100 for the steel lining module, the combination of two independent modules with different characteristics is realized. The node design is simple, the materials are readily available and recyclable, and the processing technology is simple. The component materials are universal, the specifications are few, the workshop is processed, and the on-site installation is convenient for specification unification and standard control.

[0076] Specifically, please refer to Figure 2 , 9As shown, in a specific embodiment of the present invention, the guide column 1 includes a round tube 11 and a tip 12. The tip 12 is integrally connected to the top end of the round tube 11. The diameter of the round tube 11 is 158-160mm and the height is 9-11mm. The height of the tip 12 is 5-7mm.

[0077] Therefore, the guide column 1 in the hoisting guide structure is a pointed end composed of a 159*10 round tube and a 6mm steel plate. The guide column 1 has the function of limiting in the vertical direction and plays a greater role in limiting adjustment during the initial alignment adjustment process.

[0078] Specifically, please refer to Figure 2 As shown, in a specific embodiment of the present invention, the trumpet-shaped auxiliary limiting device 2 is a conical truncated pyramid structure formed by a 10mm steel plate, and the vertical direction of the conical truncated pyramid structure is provided with a through central hole, which is suitable for the circular tube 11 to pass through.

[0079] Therefore, the horn-shaped auxiliary limiting device 2 has a conical structure, with its upper diameter being smaller than its lower diameter, so that the diameter of the hoisting module 6 can be finely adjusted by adjusting the component 5.

[0080] Specifically, please refer to Figure 2 As shown, in a specific embodiment of the present invention, the adjustment component 5 includes a box structure 51 with a top opening and an adjustment screw 52 that runs horizontally and vertically through the box structure 51 away from the hoisting module 6 and the positioning module 7. The adjustment screw 52 is adapted to rotate and abut against the outer surface of the circular tube 11.

[0081] Therefore, by adjusting the adjusting screw 52 on the adjusting component 5, the horizontal displacement of the guide column 1 can be finely adjusted. Since one side of the box structure 51 is fixedly connected to the hoisting module 6, it can drive the precise positioning of the hoisting module 6 in the circumferential and radial directions.

[0082] Specifically, the thickness of the primary radial limiting plate 3 and the secondary radial limiting plate 4 is 15-17mm, and the primary radial limiting plate 3 and the secondary radial limiting plate 4 are made of Q235B steel.

[0083] Please see Figure 2 As shown, in a specific embodiment of the present invention, the primary radial limiting plate 3 is preferably made of 16mm steel plate, the secondary radial limiting plate 4 is preferably made of 16mm steel plate, and both the primary radial limiting plate 3 and the secondary radial limiting plate 4 are made of Q235B steel.

[0084] Specifically, please refer to Figure 2 , 3 As shown in Figure 4, in a specific embodiment of the present invention, both the hoisting module 6 and the positioning module 7 include a steel lining, angle steel welded to the steel lining, embedded parts and through parts, and a steel mesh.

[0085] The structure after hoisting is mainly composed of a steel lining (including angle steel, embedded parts, brackets, and through parts welded to the steel lining), a steel mesh, and a guide structure. The guide structure includes a guide column 1, an adjustment component 5, a horn-shaped auxiliary limiting device 2, a primary radial limiting plate 3, and a secondary radial limiting plate 4, which realizes the combination of two independent modules with different characteristics and simultaneously realizes the hoisting system function.

[0086] Specifically, please refer to Figure 6 As shown, in a specific embodiment of the present invention, there are 8 first radial limiting plates 31 and 36 third radial limiting plates 41, and the first radial limiting plates 31 and the third radial limiting plates 41 are distributed at intervals on the circumferential angle steel at the upper opening of the positioning module 7.

[0087] Specifically, please refer to Figure 3 As shown, in a specific embodiment of the present invention, there are 8 second radial limiting plates 32 and 36 fourth radial limiting plates 42. The second radial limiting plates 32 and the fourth radial limiting plates 42 are distributed at intervals at the lower end of the hoisting module 6.

[0088] Thus, the primary radial limiting plate 3 and the secondary radial limiting plate 4 are evenly distributed between the hoisting module 6 and the positioning module 7, and play a role in resisting deformation of the steel lining wall panel at the contact point of the combined modules, giving full play to the role of the guiding system at different construction stages.

[0089] This invention also provides a hoisting and guiding method for steel-lined modules, employing the hoisting and guiding structure for steel-lined modules as described above. The hoisting and guiding method includes the following steps:

[0090] S 100 : Install guide columns 1 on the cage beam 71 at the top of the positioning module 7;

[0091] S 200 : Install a horn-shaped auxiliary limiting device 2 on the angle steel back rib 61 on the outside of the hoisting module 6;

[0092] S 300 Eight first radial limiting plates 31 and 36 third radial limiting plates 41 are installed on the positioning module 7;

[0093] S 400 Install 8 second radial limiting plates 32 and 36 fourth radial limiting plates 42 on the hoisting module 6;

[0094] S 500 The hoisting module 6 is hoisted and assembled onto the positioning module 7 using a crane and hoisting slings.

[0095] More specifically, in step S500 This also includes the following steps:

[0096] The lifting lugs are evenly distributed in a ring on the steel lining of the base plate module of the lifting module 6;

[0097] A disc-shaped space frame is used for hoisting, and the lower end of the disc-shaped space frame has a lifting point corresponding to the hoisting lugs;

[0098] The lifting point at the lower end of the disc-shaped space frame is connected to the corresponding lifting lug.

[0099] While the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of this disclosure, and all such changes and modifications will fall within the scope of protection of this invention.

Claims

1. A hoisting guide structure for a steel-lined module, used to guide the hoisting module (6) and the positioning module (7), wherein the positioning module (7) is located directly below the hoisting module (6), characterized in that, include: The guide column (1) is installed on the cage beam (71) at the upper opening of the positioning module (7); A horn-shaped auxiliary limiting device (2) is fixedly installed on the angle steel back rib (61) at the lower opening of the hoisting module (6); Adjustment component (5) is sleeved on the upper surface of the horn-shaped auxiliary limiting device (2), and the side of the adjustment component (5) close to the hoisting module (6) is fixed on the angle steel back rib (61). The adjustment component (5) is suitable for adjusting the circumferential and radial positioning of the guide column (1). The adjustment assembly (5) includes a box structure (51) with a top opening and an adjustment screw (52) that runs horizontally through the box structure (51) away from the hoisting module (6) and the positioning module (7). Both the hoisting module (6) and the positioning module (7) include a steel lining, angle steel welded to the steel lining, embedded parts and through parts, and steel mesh; The first-level radial limiting plate (3) includes a first radial limiting plate (31) provided at the upper end of the positioning module (7) and a second radial limiting plate (32) provided at the lower end of the hoisting module (6). The secondary radial limiting plate (4) includes a third radial limiting plate (41) provided on the circumferential angle steel at the upper opening of the positioning module (7) and a fourth radial limiting plate (42) provided at the lower opening of the hoisting module (6). The hoisting module (6) is adapted to be assembled onto the positioning module (7) under the combined action of the guide column (1), the horn-shaped auxiliary limiting device (2), the adjusting component (5), the first-level radial limiting plate (3) and the second-level radial limiting plate (4).

2. The hoisting guide structure for steel-lined modules according to claim 1, characterized in that, The guide post (1) includes a round tube (11) and a tip (12) integrally connected to the top of the round tube (11).

3. The hoisting guide structure for steel-lined modules according to claim 2, characterized in that, The horn-shaped auxiliary limiting device (2) is a conical truncated structure formed by a 10mm steel plate, and the vertical direction of the conical truncated structure is provided with a through central hole, which is suitable for the round tube (11) to pass through.

4. The hoisting guide structure for steel-lined modules according to claim 3, characterized in that, The adjusting screw (52) is adapted to rotate and abut against the outer surface of the round tube (11).

5. The hoisting guide structure for steel-lined modules according to claim 4, characterized in that, The thickness of the primary radial limiting plate (3) and the secondary radial limiting plate (4) is 15-17mm, and the primary radial limiting plate (3) and the secondary radial limiting plate (4) are made of Q235B steel.

6. The hoisting guide structure for steel-lined modules according to claim 1, characterized in that, The number of the first radial limiting plate (31) is 8, the number of the third radial limiting plate (41) is 36, and the first radial limiting plate (31) and the third radial limiting plate (41) are distributed at intervals on the circumferential angle steel at the upper opening of the positioning module (7).

7. The hoisting guide structure for steel-lined modules according to claim 6, characterized in that, The number of the second radial limiting plate (32) is 8, and the number of the fourth radial limiting plate (42) is 36. The second radial limiting plate (32) and the fourth radial limiting plate (42) are distributed at intervals at the lower end of the hoisting module (6).

8. A hoisting and guiding method for steel-lined modules, employing the hoisting and guiding structure for steel-lined modules as described in any one of claims 1-7, characterized in that, Includes the following steps: S 100 : Install guide columns (1) on the cage beam (71) at the top of the positioning module (7); S 200 : Install a horn-shaped auxiliary limiting device (2) on the angle steel back rib (61) on the outside of the hoisting module (6); S 300 Eight first radial limiting plates (31) and 36 third radial limiting plates (41) are installed on the positioning module (7). S 400 : Install 8 second radial limit plates (32) and 36 fourth radial limit plates (42) on the hoisting module (6); S 500 The hoisting module (6) is hoisted and assembled onto the positioning module (7) using a crane and hoisting slings.

9. The hoisting and guiding method for steel-lined modules according to claim 8, characterized in that, In step S 500 This also includes the following steps: The lifting lugs are evenly distributed in a ring on the steel lining belt base plate module of the lifting module (6); A disc-shaped space frame is used for hoisting, and the lower end of the disc-shaped space frame has a lifting point corresponding to the hoisting lugs; The lifting point at the lower end of the disc-shaped space frame is connected to the corresponding lifting lug.

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