Large-diameter air pipe movable support

By designing an installation mechanism for a large-diameter duct movable support and utilizing adhesive bonding and welding of PTFE plates and square steel, the displacement of the duct was solved. This addressed a technical problem that was not solved in existing technologies, achieving duct displacement and enhancing the stability of the duct and the safety of the equipment. It also optimized economic costs and improved production efficiency.

CN223648763UActive Publication Date: 2025-12-09ANHUI CONCH DESIGN & RES INST OF BUILDING MATERIALS CO LTD +1
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Patent Information

Application Number
CN202520374685.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-05
Publication Date
2025-12-09
Estimated Expiration
2035-03-05

AI Technical Summary

Technical Problem

Large-diameter ducts sway up and down and left and right during operation due to 360° rotation, causing unstable operation of the equipment and affecting its safety and economic cost.

Method used

A movable support for a large-diameter duct is designed. The installation mechanism includes a combination of a support plate, a polytetrafluoroethylene (PTFE) plate, a square steel plate, and a steel plate at the bottom of the duct. This ensures the stability of the duct during rotation. The PTFE plate is glued to the support plate, and the square steel plate is welded to the support plate to limit the displacement of the duct and transfer the load to the kiln tail steel platform.

Benefits of technology

It effectively solved the problems of duct displacement and stress, improved the stability and efficiency of equipment operation, reduced economic costs, enhanced the combustion effect of ducts, and ensured the safe operation of equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of large-diameter air pipe movable supports, in particular to a large-diameter air pipe movable support which comprises a movable support body, a steel beam is installed on the movable support body, a connecting plate is installed on the steel beam, and a plurality of stiffening plates are installed between the inner walls of the steel beam. And an air pipe is mounted on the connecting plate through a mounting mechanism. The mounting mechanism is arranged to mount and fix the air pipe, so that the long-term stress problem of the large-diameter air pipe in the kiln is effectively solved, the displacement of the air pipe can be released through the structure, the vertical force problem of the air pipe is solved, the load of the air pipe is transmitted to the kiln tail steel platform, the stress safety of the air pipe is ensured, and the service life of the air pipe is prolonged. The use efficiency of the air pipe is improved, the combustion effect of the air pipe is enhanced, safe operation of equipment is guaranteed, economic cost is optimized, production benefits are increased, and the air pipe can be widely applied to other industries in the later period.
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Description

Technical Field

[0001] This utility model relates to the technical field of movable supports for large-diameter air ducts, specifically to a movable support for large-diameter air ducts. Background Technology

[0002] With the rapid economic growth in recent years, large-diameter air ducts in industrial buildings, especially cement plant projects, can reach 3.2m in diameter and are used to burn cement raw materials.

[0003] During operation, the air duct rotates continuously 360°, especially the air duct at the kiln tail expansion joint, which will cause up-and-down and left-and-right swaying, resulting in displacement, which is not conducive to the stability of equipment operation.

[0004] Based on this, a large-diameter duct movable support is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0005] To address the aforementioned issues, a large-diameter duct movable support is provided, which solves the problem of unstable operation of the equipment through the installation mechanism.

[0006] To address the existing technical problems, this utility model provides a movable support for a large-diameter duct, including a movable support body, a steel beam mounted on the movable support body, a connecting plate mounted on the steel beam, and several stiffening plates installed between the inner walls of the steel beam. The duct is mounted on the connecting plate via an installation mechanism.

[0007] Preferably, the installation mechanism includes a receiving plate, a square steel plate, and a lower steel plate for the duct. The receiving plate is mounted on a connecting plate, and a polytetrafluoroethylene (PTFE) plate is installed on the receiving plate. The lower steel plate for the duct slides on the PTFE plate, and a square steel plate is provided on the side wall of the PTFE plate on the receiving plate.

[0008] Preferably, the square steel and the receiving plate are welded together using an 8mm thick fillet weld.

[0009] Preferably, the polytetrafluoroethylene sheet and the receiving plate are bonded together with adhesive.

[0010] The advantages of this utility model compared to the prior art are:

[0011] This utility model effectively solves the long-standing problem of stress on large-diameter air ducts in kilns by installing and fixing the air ducts through an installation mechanism. This structure can release the displacement of the air ducts, solve the problem of vertical force on the air ducts, transfer the load of the air ducts to the kiln tail steel platform, ensure the stress safety of the air ducts, improve the efficiency of air duct use, enhance the combustion effect of the air ducts, ensure the safe operation of the equipment, optimize economic costs, increase production benefits, and can be widely applied to other industries in the future. Attached Figure Description

[0012] Figure 1 A planar type of large-diameter duct movable support Figure 1 .

[0013] Figure 2 A planar type of large-diameter duct movable support Figure 2 .

[0014] Figure 3 A facade of a large-diameter duct movable support Figure 1 .

[0015] Figure 4 A facade of a large-diameter duct movable support Figure 2 .

[0016] Figure 5 This is a schematic diagram of the installation mechanism for a large-diameter duct movable support.

[0017] Figure 6 This is an AA cross-sectional view of a large-diameter duct movable support.

[0018] The following are the labels in the diagram: 101, PTFE sheet; 102, receiving plate; 103, square steel; 104, lower steel plate of the duct; 105, duct; 106, main body of the movable support; 107, stiffening plate; 108, steel beam; 109, connecting plate. Detailed Implementation

[0019] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0020] Reference Figures 1-6 A movable support for a large-diameter duct includes a movable support body 106, on which a steel beam 108 is installed, and a connecting plate 109 is installed on the steel beam 108. Several stiffening plates 107 are installed between the inner walls of the steel beam 108, and a duct 105 is installed on the connecting plate 109 through an installation mechanism.

[0021] During operation, the duct 105 rotates continuously 360°. The installation mechanism is used to install the duct 105 to prevent it from swaying up and down and left and right during rotation, which would cause displacement and affect the stability of its working process. The steel beam 108 can be an HW400x400 steel beam, and the connecting plate 109 can be -500X2000X20.

[0022] Reference Figures 2-3The installation mechanism includes a receiving plate 102, a square steel 103, and a lower duct steel plate 104. The receiving plate 102 is mounted on a connecting plate 109. A polytetrafluoroethylene (PTFE) plate 101 is mounted on the receiving plate 102. The lower duct steel plate 104 is slidably mounted on the PTFE plate 101. A square steel 103 is provided on the side wall of the PTFE plate 101 on the receiving plate 102.

[0023] The sliding surface between the PTFE plate 101 and the lower steel plate 104 of the duct is made smooth and flat, without welding, to ensure that the duct 105 can move. The lower steel plate 104 of the duct can be displaced on the PTFE plate 101 to ensure the safe and stable operation of the duct 105. The specifications of the receiving plate 102 can be -410X1750X20.

[0024] Reference Figures 5-6 The square steel 103 and the receiving plate 102 are welded together using an 8mm thick fillet weld.

[0025] This welding method is used to fix the square steel 103, which forms a circle to limit the displacement of the polytetrafluoroethylene plate 101. The square steel 103 can be 10x10.

[0026] Reference Figures 5-6 The polytetrafluoroethylene sheet 101 and the receiving plate 102 are bonded together with adhesive.

[0027] Used to install the support plate 102.

[0028] Working principle: During operation, the duct 105 rotates continuously 360°. The PTFE plate 101 and the receiving plate 102 are bonded together with adhesive. The square steel 103 is welded to the receiving plate 102 using an 8mm thick fillet weld. The sliding surface between the PTFE plate 101 and the lower steel plate 104 of the duct is smooth and flat, without welding, ensuring the mobility of the duct 105. The lower steel plate 104 can move on the PTFE plate 101, ensuring the safe and stable operation of the duct 105 and effectively solving the long-standing problem of large-diameter ducts in kilns. The stress problem of duct 105 is addressed by this structure, which releases the displacement of duct 105, solves the problem of vertical force on duct 105, transfers the load of duct 105 to the kiln tail steel platform, ensures the stress safety of duct 105, improves the utilization efficiency of duct 105, enhances the combustion effect of duct 105, ensures the safe operation of equipment, optimizes economic costs, and increases production benefits. In the future, it can be widely used in other industries, such as food factories, food processing plants, cement plants, sand and gravel plants, coal powder plants, iron ore plants, clay plants, grain silos, and power plants.

[0029] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A movable support for a large-diameter air duct, characterized in that, It includes a movable support body (106), on which a steel beam (108) is installed, on which a connecting plate (109) is installed, and between the inner walls of the steel beam (108) are several stiffening plates (107), and on the connecting plate (109) a duct (105) is installed via an installation mechanism.

2. The movable support for a large-diameter duct according to claim 1, characterized in that, The installation mechanism includes a receiving plate (102), a square steel (103), and a lower duct steel plate (104). The receiving plate (102) is installed on a connecting plate (109). A polytetrafluoroethylene plate (101) is installed on the receiving plate (102). The lower duct steel plate (104) is slidably disposed on the polytetrafluoroethylene plate (101). A square steel (103) is disposed on the side wall of the polytetrafluoroethylene plate (101) on the receiving plate (102).

3. A movable support for a large-diameter duct according to claim 2, characterized in that, The square steel (103) and the receiving plate (102) are welded together by an 8mm thick fillet weld.

4. A movable support for a large-diameter duct according to claim 2, characterized in that, The polytetrafluoroethylene sheet (101) and the receiving plate (102) are bonded together with adhesive.