A detachable steel chimney hoisting structure

Abstract

The utility model discloses a detachable steel chimney hoisting structure, steel chimney is provided with the connecting plate, the connecting plate is opened with first connecting hole, and the hoisting structure includes main force link, connecting bolt, lifting lug and steel wire rope, the both ends of main force link are opened with second connecting hole, and first connecting hole with second connecting hole are connected through connecting bolt and are fixed tightly, lifting lug sets up the both ends of main force link, and steel wire rope connects lifting lug, the hoisting structure can realize detachable connection with steel chimney of the utility model, is convenient for repeated use, reduces construction cost, and installation and dismounting operation are simple and quick, and construction efficiency has been improved greatly, and the overall strength and stability of hoisting structure have been improved effectively simultaneously, can bear greater load, ensure the connection stability in hoisting process, improve the safety of hoisting operation.

Description

Technical Field

[0001] This utility model relates to the field of steel chimney hoisting technology, and in particular to a detachable steel chimney hoisting structure. Background Technology

[0002] With the gradual development of society, waste-to-energy incineration plants have become one of the main means of disposing of municipal waste. As an important functional component of waste-to-energy incineration plants, the chimney is typically constructed using a steel circular flue as the channel for flue gas emission, taking into account factors such as construction period, durability, and economy. These chimneys are mostly tall structures with a diameter generally exceeding 2 meters. Steel flues offer advantages such as high weight per unit length, high vertical stiffness, and good planar bending resistance, but they also have the characteristic of being prone to radial deformation.

[0003] Currently, the conventional hoisting and fixing methods for steel flues mainly include welded lifting lugs + steel wire ropes and clamp fixing. However, these methods all have certain problems: When using the welded lifting lugs + steel wire rope hoisting method, due to the certain angle between the steel wire rope and the steel flue, a horizontal component force is generated. This horizontal component force exerts a radial inward force on the steel flue, causing local stress yielding at the joint, which in turn causes irreversible structural damage, seriously affecting the service life and safety of the steel flue. Moreover, when the rigidity of the steel flue is insufficient, steel supports need to be welded inside to limit deformation, which undoubtedly increases the complexity and cost of construction, and may also affect the internal structure and space of the steel flue, which is not conducive to subsequent maintenance and repair work. The clamp-fixing method is generally only suitable for lifting pipes with small diameters and light weights. Its principle relies on the friction between the clamp and the pipe to resist the pipe's own weight. However, for steel flues with larger diameters and heavier weights, the friction between the clamp and the pipe may not provide sufficient support, leading to safety hazards such as pipe slippage during lifting. This method is unsuitable for lifting large-diameter, heavy-load steel flues. Furthermore, the clamp-fixing method is not sufficiently secure in fixing the pipe during lifting, making it susceptible to external interference such as wind and vibration, further increasing the risk of lifting. Therefore, this invention develops a detachable steel flue lifting structure that overcomes the above problems, improving the safety and reliability of steel flue lifting, reducing construction costs, and increasing construction efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a detachable steel chimney hoisting structure to solve the problems mentioned in the background art. To achieve the above objective, this utility model provides the following technical solution:

[0005] A detachable steel chimney hoisting structure is provided, wherein the steel chimney is provided with a connecting plate, the connecting plate having a first connecting hole, the hoisting structure including a main load-bearing rod, connecting bolts, lifting lugs and steel wire ropes; the main load-bearing rod has second connecting holes at both ends, the first connecting holes and the second connecting holes are connected and fastened by the connecting bolts; the lifting lugs are provided at both ends of the main load-bearing rod, and the steel wire ropes are connected to the lifting lugs.

[0006] Furthermore, the main load-bearing member is an H-shaped steel beam.

[0007] Furthermore, the main load-bearing rod is provided with stiffening ribs, which are located below the lifting lug.

[0008] Furthermore, the two ends of the main force-bearing rod are configured as arc-shaped structures that are adapted to the curvature of the inner side of the steel chimney.

[0009] Furthermore, end plates are provided at both ends of the main force-bearing rod, and the second connecting hole is opened in the end plate.

[0010] Furthermore, each of the two sides of the lifting lug is provided with a mounting plate.

[0011] Furthermore, the angle between the steel wire rope and the horizontal direction is 60°.

[0012] Furthermore, an anchor block is provided at the upper end of the wire rope, and a hoisting steel strand is provided at the upper end of the anchor block.

[0013] Furthermore, the connecting bolts are high-strength hexagonal bearing type connecting bolts.

[0014] Furthermore, the steel chimney is provided with a stiffening plate, which connects the steel chimney to the connecting plate.

[0015] The beneficial effects of this utility model are as follows: the hoisting structure of this utility model can achieve a detachable connection with the steel chimney, which is convenient for reuse, reduces construction costs, and the installation and disassembly operations are simple and quick, greatly improving construction efficiency; at the same time, it also effectively improves the overall strength and stability of the hoisting structure, can withstand large loads, ensures the connection stability during the hoisting process, and improves the safety of hoisting operations. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments 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.

[0017] Figure 1This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 for Figure 1 Enlarged schematic diagram of part A in the middle.

[0019] Figure 3 This is a schematic diagram of the main load-bearing rod of this utility model.

[0020] It should be noted that the accompanying drawings are not necessarily drawn to scale, but are shown only in a schematic manner without affecting the reader's understanding. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0023] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0024] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; 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, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0025] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0026] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0027] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0028] like Figures 1 to 3 As shown, a detachable steel chimney hoisting structure is provided. The steel chimney 1 is equipped with a connecting plate 11, which has a first connecting hole. The hoisting structure includes a main load-bearing member 2 of the lifting conversion beam, connecting bolts 3, lifting lugs 4, and steel wire ropes 5. Second connecting holes are provided at both ends of the main load-bearing member 2. The first and second connecting holes are connected and secured by the connecting bolts 3, thereby achieving a detachable connection between the hoisting structure and the steel chimney 1. This connection method is simple to operate and facilitates installation and disassembly. The lifting lugs 4 are located near the ends of the main load-bearing member 2, 250mm from the end of the steel beam. This can significantly reduce the bending moment generated by the chimney on the main load-bearing member 2 of the lifting conversion beam, which is beneficial to the structure. The steel wire ropes 5 connect to the lifting lugs 4 and are used to bear the tension during the hoisting process. The lifting lugs 4 and the steel wire ropes 5 form a hoisting connection structure, enabling stable lifting and precise displacement of the steel chimney 1.

[0029] The hoisting structure of this application can achieve a detachable connection with the steel chimney, which is convenient for reuse, reduces construction costs, and the installation and disassembly operations are simple and quick, greatly improving construction efficiency. At the same time, it also effectively improves the overall strength and stability of the hoisting structure, can withstand large loads, ensures the connection stability during the hoisting process, and improves the safety of hoisting operations.

[0030] It should be noted that the main load-bearing member 2 is an H-beam, the length of which can be customized according to the size of the steel chimney 1 to be hoisted. The H-beam has excellent mechanical properties and a reasonable cross-sectional shape, effectively improving the load-bearing capacity and stability of the main load-bearing member 2. It is not prone to deformation under large loads, ensuring safety during hoisting. The connecting bolts 3 are 20mm diameter, grade 10.9, large hexagonal bearing-type high-strength bolts. They have high strength, high bearing capacity, and good connection performance, ensuring a firm and reliable connection between the hoisting structure and the steel chimney 1, preventing loosening or detachment during hoisting. The hoisting structure of this application fully utilizes the excellent bending resistance of the H-beam and the shear resistance of the large hexagonal bearing-type high-strength bolts, enabling the hoisting structure to effectively resist bending moments generated by large vertical loads, resulting in good safety performance.

[0031] In one embodiment, see Figure 2 To further enhance the stability of the main load-bearing member 2, stiffening ribs 21 are provided in the main load-bearing member 2, located below the lifting lug 4. The stiffening ribs 21 increase the local stiffness and strength of the main load-bearing member 2, effectively preventing deformation or damage due to concentrated stress during hoisting. Especially at the lifting lug 4, which is a stress concentration area due to the hoisting force, the stiffening ribs 21 improve the local stress distribution of the steel beam, significantly increasing the load-bearing capacity of this part.

[0032] In one embodiment, see Figure 2 and Figure 3 The two ends of the main load-bearing rod 2 are designed with arc-shaped structures that match the inner curvature of the steel chimney 1, ensuring a tight fit between the main load-bearing rod 2 and the steel chimney 1, increasing the contact area, and distributing the lifting force evenly on the steel chimney 1. This avoids excessive local stress that could damage the steel chimney 1 and improves the tightness and stability of the connection between the lifting structure and the steel chimney 1. Simultaneously, both ends of the main load-bearing rod 2 are equipped with end plates 22 of appropriate thickness, with second connecting holes formed in the end plates 22. The end plates 22 reinforce the ends of the main load-bearing rod 2, and the thickened end plates 22 create a horizontally elongated oval structure for the second connecting holes, ensuring the connection strength and stability between the connecting bolts 3 and the main load-bearing rod 2 and the chimney body, and preventing deformation or damage to the ends under stress.

[0033] In one embodiment, see Figure 2 and Figure 3 Each of the two sides of the lifting lug 4 is provided with a mounting plate 41. The design of the double mounting plate 41 can effectively improve the local pressure and stress condition at the lifting lug 4 and the shackle, increase the strength and stability of the lifting lug 4, and make the lifting lug 4 less prone to deformation or breakage when subjected to the tension of the wire rope 5, thereby improving the overall reliability and service life of the lifting structure.

[0034] In one embodiment, see Figure 1 and Figure 2 To ensure reasonable force distribution during hoisting, the wire rope 5 is 38mm in diameter, with a 60° angle to the horizontal. This angle design allows for a more reasonable ratio of the vertical and horizontal components of the tension in the wire rope 5, better distributing the tension and reducing unnecessary horizontal forces. This ensures effective lifting force on the steel chimney 1 while minimizing the impact of horizontal forces on the hoisting structure and the steel chimney 1, thus improving the stability and safety of the hoisting. Furthermore, a steel anchor block 6 is installed at the upper end of the wire rope 5, with a hydraulic lifting device steel strand 7 mounted on top of the anchor block 6. By using the anchor block 6 and the hydraulic lifting device steel strand 7, precise lifting and control of the steel chimney 1 can be achieved, improving the accuracy and efficiency of the hoisting, while also providing reliable power and support for the hoisting process.

[0035] In one embodiment, see Figure 2 The steel chimney 1 is equipped with a stiffening plate 12, which connects the steel chimney 1 to the connecting plate 11. The stiffening plate 12 enhances the connection strength between the steel chimney 1 and the connecting plate 11, making the entire hoisting structure and the steel chimney 1 form a stable whole, improving the overall stability of the steel chimney 1 during hoisting, and preventing relative displacement or deformation between the connecting plate 11 and the steel chimney 1.

[0036] It should also be noted that, without conflict, the embodiments of this utility model and the features therein can be combined with each other to obtain new embodiments.

[0037] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. The scope of protection of the present utility model should be determined by the scope of the claims. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A detachable steel chimney hoisting structure, wherein the steel chimney (1) is provided with a connecting plate (11), the connecting plate (11) having a first connecting hole, characterized in that, The hoisting structure includes a main load-bearing rod (2), connecting bolts (3), lifting lugs (4), and steel wire ropes (5); the main load-bearing rod (2) has second connecting holes at both ends, and the first connecting hole and the second connecting hole are connected and fastened by the connecting bolts (3); the lifting lugs (4) are set at both ends of the main load-bearing rod (2), and the steel wire ropes (5) are connected to the lifting lugs (4).

2. The detachable steel chimney hoisting structure according to claim 1, characterized in that, The main load-bearing member (2) is an H-shaped steel beam.

3. The detachable steel chimney hoisting structure according to claim 2, characterized in that, The main load-bearing rod (2) is provided with a stiffening rib (21), which is located below the lifting lug (4).

4. The detachable steel chimney hoisting structure according to claim 1, characterized in that, The two ends of the main force-bearing rod (2) are set as arc-shaped structures that are adapted to the inner curvature of the steel chimney (1).

5. The detachable steel chimney hoisting structure according to claim 1, characterized in that, The main force-bearing rod (2) is provided with end plates (22) at both ends, and the second connecting hole is opened in the end plate (22).

6. The detachable steel chimney hoisting structure according to claim 1, characterized in that, The lifting lug (4) has a mounting plate (41) on each side.

7. The detachable steel chimney hoisting structure according to claim 1, characterized in that, The angle between the steel wire rope (5) and the horizontal direction is 60°.

8. The detachable steel chimney hoisting structure according to claim 1, characterized in that, An anchor block (6) is also provided at the upper end of the wire rope (5), and a hoisting steel strand (7) is provided at the upper end of the anchor block (6).

9. The detachable steel chimney hoisting structure according to claim 1, characterized in that, The connecting bolt (3) is a large hexagonal bearing type high-strength connecting bolt.

10. The detachable steel chimney hoisting structure according to claim 1, characterized in that, The steel chimney (1) is provided with a stiffening plate (12), which connects the steel chimney (1) to the connecting plate (11).

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