A method for overall shifting of large equipment
By setting up support rods and golden roofs on the lower part of the large equipment and laying seamless steel pipe tracks, the overall displacement of the equipment is achieved by using a winch, which solves the problems of performance degradation and low movement efficiency caused by structural problems, and realizes flexible and convenient movement and efficient displacement of the equipment.
Patent Information
- Application Number
- CN202510229831.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2025-04-01
AI Technical Summary
During operation, large equipment in the metallurgical industry is prone to fracture, deformation, and cracking of internal structures due to flue gas and thermal stress, resulting in degradation of equipment performance. Due to the large size and heavy weight of the equipment, it is difficult to move the overall lifting and movement. It usually needs to be disassembled and removed, which is time-consuming and labor-intensive and inefficient.
A large-scale equipment overall displacement method is adopted. The equipment is lifted up by welding support rods at the bottom of the equipment and setting up a golden top, laying a track composed of seamless steel pipes to move the equipment on the track, and using the winch to apply external force to achieve flexible and convenient movement of the equipment.
By reducing the friction between the equipment and the ground, using tracks and winches to achieve smooth movement of the equipment, it is suitable for situations where the site is limited and cannot be constructed, improving the equipment displacement efficiency and saving costs.
Smart Images
Figure CN119735151A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of equipment transportation and relates to a method for overall displacement of large equipment. Background Art
[0002] During operation, some large equipment in the metallurgical industry (such as heat exchangers, etc.) are prone to internal structure fracture, deformation, weld cracking, etc. due to the influence of flue gas conditions and thermal stress, resulting in reduced equipment performance and affecting equipment efficiency. Sometimes it is necessary to completely dismantle and replace the equipment to fundamentally solve the problems with the equipment. However, the equipment is large in size and heavy in weight, and it is difficult to hoist and move the entire equipment. Therefore, most of the equipment is dismantled and moved away, which is time-consuming, labor-intensive and inefficient. Summary of the invention
[0003] The purpose of the present invention is to provide a method for overall displacement of large equipment in view of the problems existing in the prior art.
[0004] To this end, the present invention adopts the following technical solutions: A method for overall displacement of large equipment comprises the following steps: (1) Lift up the equipment and raise its height; (2) Lay a track consisting of multiple seamless steel pipes on the ground, and place the equipment at one end of the track; (3) Lower the equipment, place it on the track, and use a winch to pull the equipment to move; (4) After the equipment reaches the moving position, lift it up, remove the track under the equipment, and finally lower the equipment to the ground.
[0005] Furthermore, in step (1), a plurality of support rods are welded at the bottom of the equipment along the circumference of the equipment, and a jack is arranged under the support rods, and the equipment is lifted up using a jack.
[0006] Furthermore, the multiple support rods are located in the same horizontal plane, and the support rods are arranged horizontally.
[0007] Furthermore, the track in step (2) is laid along the moving path.
[0008] Furthermore, in the step (3), a pull ring is welded on one side of the equipment, and the pull ring is used to connect with the winch hook.
[0009] The beneficial effects of the present invention are as follows: by arranging a track made of seamless steel pipes under the equipment, the friction between the equipment and the ground is greatly reduced, and the equipment is moved to the corresponding position on the track by applying external force through a winch. It is suitable for situations where the site is limited and large-scale lifting equipment cannot be constructed. It is flexible and convenient, greatly improves efficiency, and saves costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a structural schematic diagram of the present invention; In the figure, 1-equipment, 2-support rod, 3-track, 301-seamless steel pipe, 4-pull ring, 5-winch, 6-jack. DETAILED DESCRIPTION
[0011] The present invention is described in detail below in conjunction with embodiments: like Figure 1 As shown, a method for overall displacement of large equipment includes the following steps: (1) Lift the equipment and raise its height so that a gap is formed between the equipment and the ground. In this embodiment, a heat exchanger is taken as an example. Specifically, a plurality of support rods 2 are welded along the circumference of the equipment 1 at the bottom of the equipment 1, and all support rods 2 are located in the same horizontal plane and are arranged horizontally. The length of the support rod 2 is 10-20 cm to prevent bending due to excessive length when receiving external force. Then, a jack 6 is arranged under the support rod 2. The equipment 1 is lifted by the jack 6. When a gap is formed between the equipment 1 and the ground, the corresponding equipment can be easily installed under the equipment 1.
[0012] (2) A track 3 composed of multiple seamless steel pipes 301 is laid on the ground. The track 3 is laid along the moving path of the equipment. The seamless steel pipe 301 is a thick-walled seamless steel pipe of φ108 mm × 14 mm, so as to bear the weight of the equipment and ensure that the overall rigidity of the track 3 can bear the uneven distribution of the equipment and resist the additional internal forces caused by pushing, pulling, lifting, rotation, etc. during the displacement process. After the track 3 is laid, the equipment 1 is located at one end of the track 3, and the moving end point of the equipment 1 is located at the other end of the track 3. The seamless steel pipes 301 are 10-30 cm apart to ensure that there are enough seamless steel pipes 301 to provide support for the equipment 1 and keep the equipment 1 stable.
[0013] (3) Shorten the jack 3, lower the height of the equipment 1, place the equipment 1 on the track 3, and then weld a pull ring 4 on one side of the equipment 1. The pull ring 4 is located at the bottom of the equipment 1. Install a fixed winch 5 at the end of the track away from 1. Use the pull ring 4 to connect with the hook of the winch 5, and then use the winch 5 to pull the equipment 1 on the track 3 to the corresponding position. When starting to winch and pull the equipment 1, adopt a step-by-step loading method, that is, when the winch 5 starts, load the equipment 1 to 30% of the design load. If the equipment does not move, at each level The load is increased by 10% to 70% of the design load. If the equipment has not moved, the load is increased step by step by 5% of the design load until the equipment 1 moves. Then the load increase is stopped to ensure smooth movement of the equipment 1. When the equipment 1 crystallizes at the corresponding position, the load is reduced step by step until the equipment 1 stops. When the equipment 1 moves, the seamless steel pipe 301 in the track 3 rotates. The rotation of the seamless steel pipe 301 can greatly reduce the friction between the equipment 1 and the ground, and then a small external force can be applied in the horizontal direction to drive the equipment 1 to move.
[0014] (4) When the device 1 reaches the moving position, lift up the device 1 to raise the height of the device 1, then remove the seamless steel pipe 301 under the device 1, lower the device 1 to the ground, complete the movement of the device 1, and finally remove the support rod 2 and the pull ring 4 by cutting. In addition, when using this method, it is necessary to ensure that the ground where the track is laid is flat to prevent safety accidents.
[0015] This method is particularly suitable for moving equipment where the site is limited and large lifting devices cannot be constructed. It is flexible and convenient, greatly improves efficiency and saves costs.
Claims
1. A method for overall displacement of large equipment, characterized in that: The following steps are involved: (1) Lift up the equipment and raise its height; (2) Lay a track consisting of multiple seamless steel pipes on the ground, and place the equipment at one end of the track; (3) Lower the equipment, place it on the track, and use a winch to pull the equipment to move; (4) After the equipment reaches the moving position, lift it up, remove the track under the equipment, and finally lower the equipment to the ground.
2. A method for overall displacement of large equipment according to claim 1, characterized in that: In the step (1), a plurality of support rods are welded at the bottom of the equipment along the circumference of the equipment, and a jack is arranged under the support rods, and the equipment is lifted up by a jack.
3. A method for overall displacement of large equipment according to claim 2, characterized in that: The multiple support rods are located in the same horizontal plane, and the support rods are arranged horizontally.
4. A method for overall displacement of large equipment according to claim 1, characterized in that: In the step (2), the track is laid along the moving path.
5. A method for overall displacement of large equipment according to claim 1, characterized in that: In the step (3), a pull ring is welded on one side of the equipment, and the pull ring is used to connect with the winch hook.