Hoisting system, manipulator and method for hoisting reaction kettle

Abstract

The invention relates to the technical field of reaction kettle hoisting, in particular to a hoisting system, a manipulator and a method for hoisting a reaction kettle, and aims to solve the problems of kettle body shaking and low stability in the hoisting process due to gravity center deviation caused by different structures of the reaction kettle. Comprising parallel sliding rails, a crane and a reaction kettle body, the crane is connected to the parallel sliding rails in a sliding mode, and the crane can ascend and descend; the limiting assembly is located on one side of the reaction kettle body in the length direction, a plurality of balancing weights are arranged in the limiting assembly, the limiting assembly is used for clamping and limiting the reaction kettle body, the balancing weights can slide along the limiting assembly, and the sliding direction is the direction opposite to the gravity center of the reaction kettle body. By additionally arranging the limiting assembly capable of sliding and balancing in the hoisting system, online adjustment and clamping limiting of gravity center shift of the reaction kettle body are achieved, transverse or longitudinal inclination in the hoisting process is avoided, and hoisting stability and safety are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of reactor hoisting, and in particular to a hoisting system, a manipulator and a method for hoisting a reactor. Background Art

[0002] Reactors are widely used in the chemical, pharmaceutical, and food industries, conducting reactions under high temperature, high pressure, or specific atmospheres. During the installation, maintenance, and replacement of reactors, they typically require the use of lifting equipment to hoist them as a whole. However, due to the reactor's large mass, tall and narrow structure, and the potential for its internal center of gravity to shift due to structural or fluid distribution, the actual hoisting process can easily lead to unsafe conditions such as deflection and swing. In severe cases, this can even cause the equipment to tip over or the hoisting to fail, posing a significant safety hazard.

[0003] To avoid these issues, existing technologies generally utilize lifting aids such as hoisting rings, frames, or support structures. However, many existing lifting aids fail to fully consider the impact of various eccentricities (such as horizontal eccentricity, vertical center of gravity offset, or combined eccentricity) on the stability of the reactor during lifting. This can lead to issues such as inadequate positioning, uneven counterweight distribution, and the inability of the structure to adapt to site changes. Furthermore, these structures still suffer from safety deficiencies and complex adjustments.

[0004] Furthermore, existing reactor support or clamping structures often utilize simple circular bases or frames, making them difficult to quickly clamp and adjust, and lack torque balancing for hoisting applications. This is particularly true for on-site hoisting of medium- to large-sized cylindrical reactors, where reliably clamping and limiting the reactor through the lower structure while offsetting the unbalanced torque caused by eccentricity through a reasonable counterweight arrangement presents a critical technical challenge that needs to be addressed.

[0005] Therefore, there is an urgent need to provide an improved structure for hoisting cylindrical reactors, which can achieve effective limit and counterweight adjustment when the reactor is in an eccentric state, and improve the safety and adaptability of hoisting. Summary of the Invention

[0006] The technical problem to be solved by the present invention is that when a reactor is hoisted, it is easy to shake due to the eccentric center of gravity of the reactor, which affects the hoisting stability. The purpose is to provide a hoisting system, a manipulator and a method for hoisting a reactor, which can add corresponding counterweights in the opposite direction of the eccentric center of gravity of the reactor and keep them fixed, thereby improving the stability of the hoisting.

[0007] The present invention is achieved through the following technical solutions: A first aspect of the present invention relates to a hoisting system for hoisting a reactor, comprising parallel slide rails, a crane, and a reactor body, wherein the crane is slidably connected to the parallel slide rails, the crane being capable of being raised and lowered, and further comprising a limit assembly; The limiting assembly is located on one side of the length direction of the reactor body. A plurality of counterweights are arranged in the limiting assembly. The limiting assembly is used to clamp the reactor body. The counterweights can slide along the limiting assembly, and the sliding direction is the opposite direction of the center of gravity of the reactor body.

[0008] In the above technical solution, by adding a sliding counterweight limit component to the hoisting system, online adjustment and clamping limit of the center of gravity offset of the reactor body can be achieved, avoiding lateral or longitudinal tilt during the hoisting process and improving hoisting stability and safety.

[0009] In some optional technical solutions, the limiting assembly includes a first limiting frame and a second limiting frame, which are mirror-imaged. The first limiting frame and the second limiting frame are both U-shaped structures, and the ends of the first limiting frame and the second limiting frame facing each other are each provided with a connecting sleeve. The first limiting frame and the second limiting frame are both provided with a receiving groove, and the connecting sleeve is slidably connected in the receiving groove.

[0010] In the above technical solution, two sets of mirrored U-shaped limit frames and sliding connection sleeves are used to ensure that the limit components can be symmetrically arranged and moved synchronously on both sides of the reactor body, and can be fixed after installation to achieve two-way clamping, enhance the limit effect and simplify the installation operation.

[0011] In some optional technical solutions, the first limit frame and the second limit frame are hingedly connected at one end facing each other with a connecting column, and a groove is provided in the connecting column. When the connecting column is perpendicular to the first limit frame, the bottom surface of the connecting column is higher than the top surface of the first limit frame.

[0012] In the above technical solution, by hingedly connecting a flippable connecting column at the end of the limit frame and making the bottom surface of the connecting column higher than the top surface of the frame after flipping, a top support for the kettle body can be formed after clamping, further improving the longitudinal limiting capacity during lifting.

[0013] In some optional technical solutions, a support shaft is provided in the accommodating groove, and the counterweight block is slidably connected to the support shaft.

[0014] In the above technical solution, a support shaft is set in the accommodating groove, so that the counterweight block slides smoothly along the support shaft and bears the load, ensuring that the counterweight position can be adjusted while having reliable support, thereby improving the counterweight adjustment accuracy and stability.

[0015] In some optional technical solutions, cushion layers are provided on the inner side walls of the first limiting frame and the second limiting frame.

[0016] In the above technical solution, a buffer layer is added to the inner wall to prevent the first limit frame and the second limit frame from directly contacting the kettle body, reducing wear and impact, and increasing the friction during clamping, thereby protecting the equipment surface and enhancing the limit reliability.

[0017] In some optional technical solutions, a load-bearing shaft is provided in the groove, the counterweight block is slidably connected to the load-bearing shaft, and the top surfaces of the first limit frame and the second limit frame are both provided with through grooves.

[0018] In the above technical solution, a load-bearing shaft is added in the groove of the connecting column, and a through groove is opened on the top surface of the limit frame, so that the counterweight block can be arranged in a bidirectional sliding manner in the vertical and horizontal directions, meeting the torque balance requirements under various eccentric working conditions.

[0019] A second aspect of the present invention relates to a manipulator for hoisting a reactor, which is used to grasp a hoisting system for hoisting a reactor as described in the first aspect of the present invention, comprising: A fastener, which is used to be sleeved and fixed on the top of the reactor body, and is used to be connected and fixed to the limit assembly; The grabbing piece is arranged on the crane, and the top end of the fastener is connected with a plurality of steel ropes. The grabbing piece is used to grab and hook the plurality of steel ropes to lift the reactor body.

[0020] In the above technical solution, the manipulator grasping structure and the limiting assembly are combined, and fasteners and multiple steel ropes are used for synchronous hanging to form a top-down coordinated limiting and lifting system, which improves the lifting positioning accuracy and reduces the operation links.

[0021] In some optional technical solutions, a plurality of sedimentation grooves are provided on the side wall of the fastener facing the outside, and the top end of the connecting column is located in the sedimentation groove and fixed to the bottom surface of the sedimentation groove.

[0022] In the above technical solution, a settlement groove is opened on the side wall of the fastener so that the top of the connecting column can be embedded in and fixed on the bottom surface of the settlement groove, further ensuring the precise fit and anti-overturning ability between the manipulator and the limit assembly.

[0023] A third aspect of the present invention relates to a method for hoisting a reactor, which uses the manipulator for hoisting a reactor as described in the second aspect of the present invention to achieve hoisting, comprising: S1. Preparation of lifting system and manipulator; S2, installation of limit assembly; S3, the manipulator and the limit assembly are connected and fixed; S4, lifting the reactor body; S5. Hoisting is completed and the hoisting system is reset; Among them, in S1, the center of gravity position of the hoisted reactor body is detected and a corresponding counterweight block is provided.

[0024] In the above technical solution, the center of gravity is detected in advance and the counterweight blocks are distributed to achieve targeted installation and fine-tuning, ensuring that the limit and counterweight are adjusted synchronously during the entire lifting process, thereby improving work efficiency and safety factor.

[0025] In some optional technical solutions, S2 includes: S21. Based on the center position of the reactor body measured in S1, a plurality of counterweights are allocated and positioned in the first limiting frame, the second limiting frame, or the two connecting columns; S22, operating the first limiting frame to contact the reactor body, and after completion, turning the connecting column on the first limiting frame upward to keep it vertical; S23, operate the upper connecting column of the second limit frame to flip upward and keep it vertical, control the second limit frame to move toward the first limit frame until it contacts the reactor body, and at the same time, the counterweight block located in the first limit frame, the second limit frame or the two connecting columns is limited.

[0026] In the above technical solution, the installation steps of the limit assembly are refined so that the operation process of the two sets of limit frames and connecting columns is clear and the sequence is reasonable, ensuring that the counterweight block is automatically limited, clamped and flipped, thereby quickly completing precise clamping.

[0027] Compared with the prior art, the present invention has the following advantages and beneficial effects: In the present invention, when the center of gravity of the reactor body deviates, the first limit frame and the second limit frame are installed at the bottom of the reactor body for limit clamping according to the different eccentric positions, and the overall limit is completed by using connecting columns and fasteners. At the same time, the corresponding counterweight block is pre-installed in the opposite direction of the center of gravity of the reactor body, which can ensure stability during hoisting and prevent the reactor body from shifting due to the upward center of gravity. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings: Figure 1 The structure of the present invention is schematically shown Figure 1 ; Figure 2 The structure of the present invention is schematically shown Figure 2 ; Figure 3 A cross-sectional view of the first limiting frame and the second limiting frame in the present invention; Figure 4 Schematic diagram of the structure of the first limiting frame and the second limiting frame in the present invention.

[0029] The reference numerals represent: 1. Reactor body; 21. First limiting frame; 22. Second limiting frame; 23. Accommodating groove; 24. Support shaft; 25. Cushion; 26. Through groove; 27. Connecting sleeve; 3. Connecting column; 31. Load-bearing shaft; 4. Fastener; 5. Counterweight. DETAILED DESCRIPTION

[0030] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the examples and accompanying drawings. The exemplary embodiments of the present invention and their descriptions are only used to explain the present invention and are not intended to limit the present invention. It should be noted that the present invention is already in the actual development and use stage.

[0031] Example 1 like Figures 1 to 4 As shown, this embodiment provides a hoisting system for hoisting a reactor, comprising parallel slide rails, a crane and a reactor body, wherein the crane is slidably connected to the parallel slide rails, the crane can be raised and lowered, and further comprises a limit assembly; The limiting assembly is located on one side of the length direction of the reactor body 1. Several counterweights 5 are arranged in the limiting assembly. The limiting assembly is used to clamp and limit the reactor body 1. The counterweights 5 can slide along the limiting assembly, and the sliding direction is the opposite direction of the center of gravity of the reactor body 1.

[0032] like Figures 1 to 4 As shown, the limiting assembly includes a first limiting frame 21 and a second limiting frame 22. The first limiting frame 21 and the second limiting frame 22 are mirror-set. The first limiting frame 21 and the second limiting frame 22 are both U-shaped structures. The ends of the first limiting frame 21 and the second limiting frame 22 facing each other are each provided with a connecting sleeve 27. The first limiting frame 21 and the second limiting frame 22 are both provided with a receiving groove 23, and the connecting sleeve 27 is slidably connected in the receiving groove 23.

[0033] like Figures 1 to 4 As shown, the first limit frame 21 and the second limit frame 22 are hingedly connected at one end facing each other with a connecting column 3, and a groove is provided in the connecting column 3. When the connecting column 3 is perpendicular to the first limit frame 21, the bottom surface of the connecting column 3 is higher than the top surface of the first limit frame 21.

[0034] like Figure 3 As shown, a support shaft 24 is provided in the accommodating groove 23 , and the counterweight 5 is slidably connected to the support shaft 24 .

[0035] like Figure 1 and Figure 4 As shown, a cushion layer 25 is provided on the inner side walls of the first limiting frame 21 and the second limiting frame 22 .

[0036] like Figure 3As shown, a load-bearing shaft 31 is provided in the groove of the connecting column 3 , and the counterweight 5 is slidably connected to the load-bearing shaft 31 . The top surfaces of the first limiting frame 21 and the second limiting frame 22 are both provided with through grooves 26 .

[0037] Specifically, in this embodiment, the hoisted reactor body 1 is a vertical cylindrical reactor body 1, and the center of gravity of the reactor body 1 is located above the reactor body. During conventional hoisting, the reactor body 1 will tilt due to the top-heavy structure, making the hoisting unstable.

[0038] The first limit frame 21 and the second limit frame 22 are two identical U-shaped components. The first limit frame 21 and the second limit frame 22 both include a transition part, a connecting part and a load-bearing part. The connecting part and the load-bearing part are fixedly connected at both ends of the transition part to form a U shape. A connecting column 3 is hinged at the load-bearing part, and the support shaft 24 is located in the accommodating groove 23. The support shaft 24 located in the transition part is used to support and fix in the accommodating groove, and the support shaft 24 located in the connecting part and the load-bearing part is used to place the counterweight 5; it should be noted that a through hole should be opened on the counterweight 5, which can be slidably connected to the support shaft 24 using the through hole. The shape, size and quality of the counterweight 5 can be adjusted and selected according to the use of the lifting project, and it is necessary to ensure that the volume of the counterweight 5 will not affect the normal sliding on the support shaft 24 and the insertion of the connecting sleeve 27.

[0039] When installing the limit assembly, rotate the connecting columns 3 on the first limit frame 21 and the second limit frame 22 from parallel to vertical. Taking the first limit frame 21 as a reference, first make the cushion layer 25 of the first limit frame 21 fit with the peripheral side surface of the reactor body 1, and then move the second limit frame 22. The first limit frame 21 and the second limit frame 22 are mirror-imaged, that is, the connecting part of the first limit frame 21 corresponds to the load-bearing part of the second connecting frame. Continue to move the second limit frame 22 so that the connecting sleeve 27 on the second limit frame 22 is inserted into the receiving groove 23 of the first limit frame 21. Correspondingly, the connecting sleeve 27 of the first limit frame 21 is also inserted into the receiving groove 23 of the second limit frame 22 until the cushion layer 25 of the second limit frame 22 is also fitted with the reactor body 1.

[0040] After the first limit frame 21 and the second limit frame 22 are snap-fitted and installed, the position of the counterweight 5 can be adjusted through the through slot 26 so that the counterweight 5 is evenly distributed instead of being gathered in one place; the bottom surfaces of the connecting column 3 are the first limit frame 21 and the second limit frame 22 respectively, which will be limited and unable to be reset, ensuring the safety of the lifting. It should be noted that in order to further improve the safety of the lifting, a connecting slot can be opened at the connection of the connecting sleeve 27 of the first limit frame 21 and the second limit frame 22, and the first limit frame 21 and the second limit frame 22 can be fixed by bolts. After the reactor body 1 is lifted, it can be disassembled.

[0041] In this embodiment, the center of gravity of the reactor body 1 is biased upward, so the counterweight 5 is located in the accommodating groove 23 of the first limiting frame 21 and the second limiting frame 22. The first limiting frame 21 and the second limiting frame 22 are installed at the bottom of the reactor body 1, in the opposite direction of the center of gravity of the reactor body 1, which can ensure stability during hoisting and prevent the reactor body 1 from shifting due to the biased center of gravity.

[0042] Example 2 The installation method of the limiting assembly in this embodiment is the same as that in embodiment 1, except that the center of gravity of the hoisted reactor body 1 in this embodiment is biased toward the axis side.

[0043] The installation method is the same as that of Example 1, but it is necessary to keep the connecting column 3 of the first limit frame 21 on the opposite side of the center of gravity of the reactor body 1. When the counterweight 5 is equipped, part of the counterweight 5 is slid into the load-bearing shaft 31 of the connecting column 3 through the groove. Preferably, the groove of the connecting column 3 is equal to the size of the through groove 26 of the first limit frame 21, and the load-bearing shaft 31 is the same size as the support shaft 24, which facilitates the sliding of the counterweight 5. After the counterweight 5 is installed on the connecting column 3 of the first limit frame 21, the counterweight 5 can continue to be added. The newly added counterweight 5 will push the counterweight 5 in the connecting column 3 toward the first limit frame 21, and after both are added with an appropriate amount of counterweight 5, rotate the connecting column 3 to a certain angle and control the second limit frame 22 to cooperate with the first limit frame 21 for installation. After the first limit frame 21 and the second limit frame 22 are completed and installed, the connecting column 3 remains vertical, and the internal counterweight 5 will not fall due to the limitation of the first limit frame 21 and the second limit frame 22, and the corresponding counterweight is also completed. It should be noted that, in order to ensure balance, the connecting column 3 of the second limit frame 22 does not need to be installed with the counterweight 5, and it only needs to install the counterweight 5 by itself like the first limit frame 21.

[0044] Similar to Example 1, adding a counterweight in the opposite direction of the center of gravity of the reactor body 1 can maintain the balance of lifting; in addition, the first limit frame 21 and the second limit frame 22 also add a counterweight block 5, which is biased above or to one side in the height direction relative to the center of the reactor body 1. The center of gravity is located at the bottom, which can better maintain the stability of lifting, further increasing the stability of the lifting when the center of gravity of the reactor body 1 deviates in this embodiment.

[0045] Example 3 like Figure 1 and Figure 2 As shown, in this embodiment, the installation is carried out in coordination with the manipulator after the installation of the limit assembly is completed based on embodiments 1 and 2.

[0046] A manipulator for hoisting a reactor, based on a hoisting system for hoisting a reactor body 1 of embodiments 1 and 2, realizes a grabbing and hoisting system, comprising: Fastener 4, fastener 4 is used to be sleeved and fixed on the top of the reactor body 1, and fastener 4 is used to connect and fix with the limit assembly; The grabbing piece is set on the crane, and the top of the fastener 4 is connected to a plurality of steel ropes. The grabbing piece is used to grab and hook the plurality of steel ropes to lift the reactor body 1.

[0047] A plurality of sedimentation grooves are provided on the side wall of the fastener 4 facing the outside, and the top end of the connecting column 3 is located in the sedimentation groove and fixed to the bottom surface of the sedimentation groove.

[0048] Specifically, the fastener 4 can be a circular or polygonal structure, which can be mounted and fixed on the top of the reactor body 1 by bolts. When installing, the fastener 4 can adjust the position height so that the sedimentation tank contacts the connecting column 3. After the installation is completed, the connecting column 3 and the fastener 4 are fixed by bolts or other means, thereby realizing the connection and fixation of the limit assembly and the fastener 4.

[0049] A plurality of lifting rings are provided at the top of the fastener 4, and steel ropes are passed through the lifting rings. The grabbing piece is a hook, and the hook is hooked with a plurality of steel ropes. The fastener 4 and the limit assembly are lifted by a crane and a parallel slide rail to realize the lifting of the reactor body 1. The hook, crane and parallel slide rails are not shown in the figure. Among them, the crane is the same as the existing technology. The parallel slide rail is a guide rail used for moving the crane, and the hook is used to hook the fixed steel rope.

[0050] Preferably, in order to further ensure the safety of hoisting, a connecting plate may be provided on the transition portion between the first limiting frame 21 and the second limiting frame 22 , with both ends of the connecting plate being detachably connected to the transition portion and the fastener 4 , respectively.

[0051] Example 4 A method for hoisting a reactor, which is based on the hoisting systems and manipulators of Examples 1 to 3 to hoist a reactor body 1, comprises: S1. Preparation of lifting system and manipulator; S2, installation of limit assembly; S3, the manipulator and the limit assembly are connected and fixed; S4, lifting the reactor body 1; S5. Hoisting is completed and the hoisting system is reset; In S1 , the center of gravity of the hoisted reactor body 1 is detected, and a corresponding counterweight 5 is provided.

[0052] S2 includes: S21, according to the center position of the reactor body 1 measured in S1, a plurality of counterweights 5 are respectively positioned in the first limiting frame 21, the second limiting frame 22 or the two connecting columns 3; S22, operate the first limiting frame 21 to contact the reactor body 1, and after completion, flip the connecting column 3 on the first limiting frame 21 upward to keep it vertical; S23, operate the connecting column 3 on the second limit frame 22 to flip upward and keep it vertical, control the second limit frame 22 to move toward the first limit frame 21 until it contacts the reactor body 1, and at the same time, the counterweight block 5 located in the first limit frame 21, the second limit frame 22 or the two connecting columns 3 is limited.

[0053] Specifically, before lifting, the center of gravity of the reactor body 1 is measured, a suitable counterweight 5 is selected, and the reactor body 1 is fixed in position by using the cooperation of the limit assembly and the fastener 4. Finally, the reactor body 1 is lifted using the grabbing piece and the crane.

[0054] Example 5 In this embodiment, the limiting assembly and the fastener 4 can also be used to lift the horizontal reactor body 1. The limiting assembly can be fixed on one side of the length direction of the reactor body 1 using Example 1, and the fastener 4 can be installed on the other side. The two are connected by a connecting column 3. Preferably, in order to maintain balance, in this embodiment, the first limiting frame 21 and the second limiting frame 22 are also provided with a lifting ring and a steel rope to facilitate lifting by a hook.

[0055] It should be noted that the center of gravity of the horizontal reactor body 1 is mostly located at the bottom or on one side in the length direction. When the center of gravity is located at the bottom, there is no need to use the counterweight 5. When the center of gravity is biased to one side, the counterweight 5 can be installed in the manner of Example 1 to maintain the balance of the hoisting.

[0056] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A hoisting system for hoisting a reactor, comprising parallel slide rails, a crane and a reactor body (1), wherein the crane is slidably connected to the parallel slide rails and can be raised and lowered, and characterized in that: Also includes a limit assembly; The limiting assembly is located on one side of the reactor body (1) in the longitudinal direction. A plurality of counterweights (5) are arranged in the limiting assembly. The limiting assembly is used to clamp the reactor body (1) to limit the position. The counterweights (5) can slide along the limiting assembly, and the sliding direction is opposite to the center of gravity of the reactor body (1).

2. The hoisting system for hoisting a reactor according to claim 1, characterized in that: The limiting assembly comprises a first limiting frame (21) and a second limiting frame (22), wherein the first limiting frame (21) and the second limiting frame (22) are mirror-imaged, and both the first limiting frame (21) and the second limiting frame (22) are U-shaped structures. Ends of the first limiting frame (21) and the second limiting frame (22) facing each other are each provided with a connecting sleeve (27), and a receiving groove (23) is provided in each of the first limiting frame (21) and the second limiting frame (22), and the connecting sleeve (27) is slidably connected in the receiving groove (23).

3. The hoisting system for hoisting a reactor according to claim 2, characterized in that: The first limiting frame (21) and the second limiting frame (22) are both hingedly connected at one end thereof facing each other, and a groove is provided in the connecting column (3). When the connecting column (3) is perpendicular to the first limiting frame (21), the bottom surface of the connecting column (3) is higher than the top surface of the first limiting frame (21).

4. The hoisting system for hoisting a reactor according to claim 2, characterized in that: A support shaft (24) is provided in the accommodating groove (23), and the counterweight (5) is slidably connected to the support shaft (24).

5. The hoisting system for hoisting a reactor according to claim 2, characterized in that: A cushion layer (25) is provided on the inner side walls of the first limiting frame (21) and the second limiting frame (22).

6. The hoisting system for hoisting a reactor according to claim 3, characterized in that: A load-bearing shaft (31) is provided in the groove, and the counterweight (5) is slidably connected to the load-bearing shaft (31). The top surfaces of the first limiting frame (21) and the second limiting frame (22) are both provided with through grooves (26).

7. A manipulator for hoisting a reactor, used for grabbing the hoisting system for hoisting a reactor according to claim 6, characterized in that: include: A fastener (4), the fastener (4) being used to be sleeved and fixed on the top end of the reactor body (1), and the fastener (4) being used to be connected and fixed to the limiting assembly; A grabbing piece is provided on a crane, and a top end of the fastener (4) is connected to a plurality of steel ropes. The grabbing piece is used to grab and hook the plurality of steel ropes to lift the reactor body (1).

8. The manipulator for hoisting a reactor according to claim 7, characterized in that: A plurality of sedimentation grooves are provided on the side wall of the fastener (4) facing the outside, and the top end of the connecting column (3) is located in the sedimentation groove and is fixed to the bottom surface of the sedimentation groove.

9. A method for hoisting a reactor, characterized in that: The hoisting is achieved by using a manipulator for hoisting a reactor as claimed in claim 7, comprising: S1. Preparation of lifting system and manipulator; S2, installation of limit assembly; S3, the manipulator and the limit assembly are connected and fixed; S4, lifting the reactor body (1); S5. Hoisting is completed and the hoisting system is reset; In S1, the center of gravity of the hoisted reactor body (1) is detected and a corresponding counterweight (5) is provided.

10. The method for hoisting a reactor according to claim 9, characterized in that: The S2 includes: S21, according to the center position of the reactor body (1) measured in S1, allocating a number of counterweights (5) to be located in the first limit frame (21), the second limit frame (22) or the two connecting columns (3); S22, operating the first limiting frame (21) to contact the reactor body (1), and after completion, turning the connecting column (3) on the first limiting frame (21) upward to keep it vertical; S23, operate the connecting column (3) on the second limit frame (22) to flip upward and keep it vertical, control the second limit frame (22) to move toward the first limit frame (21) until it contacts the reactor body (1), and at the same time, the counterweight (5) located in the first limit frame (21), the second limit frame (22) or the two connecting columns (3) is limited.

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