Rotary furnace tail gas dynamic and static ring sealing device

Abstract

The application provides a rotary furnace tail gas dynamic and static ring sealing device, which comprises a base, a lever and a weight block, the end of the lever is hinged with a hanging rod for screwing the weight block, the base is provided with a cantilever, the cantilever is provided with a sliding block in sliding clamping mode, and the hanging rod is arranged in the sliding block. In the application, the sliding clamping cooperation between the sliding block and the cantilever can keep the included angle between the hanging rod and the cantilever, and the stability of the weight block is improved.

Description

Technical Field

[0001] This application relates to the field of rotary kiln technology, and in particular to a rotary kiln tail gas dynamic and static ring sealing device. Background Technology

[0002] A rotary kiln is a thermal equipment used for calcining, roasting, or drying granular and powdery materials. During the permitted period, there are strict requirements for exhaust gas emissions, and sealing devices are required to prevent leakage during the discharge or shutdown process. However, the sealing devices currently in use are not convenient for maintaining a dynamic seal between the dynamic and static rings.

[0003] Patent CN216667690U discloses a sealing device for the tail end of a solid waste disposal gyratory furnace. The device uses a sealing and pressing mechanism to enable the dynamic and static friction rings to maintain a dynamic seal, thus solving the problem of poor sealing at the furnace tail.

[0004] However, in the aforementioned disclosure, the weight block in the sealing and clamping mechanism is suspended by a steel wire rope, which makes it prone to swaying and has poor stability. Utility Model Content

[0005] In view of this, the purpose of this application is to provide a rotary kiln tail gas dynamic and static ring sealing device to improve the stability of heavy blocks.

[0006] The technical solution of this application is as follows:

[0007] This application provides a rotary kiln tail gas dynamic and static ring sealing device, including a base, a lever and a weight block. The end of the lever is hinged to a hanging rod for screwing the weight block. The base is provided with a cantilever, and the cantilever is provided with a slider that is slidably engaged. The hanging rod passes through the inside of the slider.

[0008] By adopting the technical solution of this application, the sliding engagement between the slider and the cantilever can maintain a constant angle between the hanging rod and the cantilever, thereby improving the stability of the heavy block.

[0009] In some implementations, the cantilever is horizontally fixed to the base.

[0010] In some implementations, the cantilever is provided with a groove for engaging the slider.

[0011] In some implementations, the chute extends along the longitudinal direction of the cantilever.

[0012] In some implementations, the slider is constructed as a hollow cylinder.

[0013] In some implementations, the outer diameter of the slider is equal to the width of the groove.

[0014] In some implementations, baffles are provided at both ends of the slider.

[0015] In some implementations, the baffle is constructed as a ring arranged coaxially with the slider.

[0016] In some implementations, baffles are arranged symmetrically at both ends of the slider.

[0017] In some implementations, the slider's axis is arranged perpendicular to the cantilever. Attached Figure Description

[0018] Exemplary embodiments of this application will now be described in detail with reference to the accompanying drawings. It should be understood that the embodiments described below are for illustrative purposes only and are not intended to limit the scope of this application. In the accompanying drawings:

[0019] Figure 1 This is a schematic diagram of an existing sealing and clamping mechanism;

[0020] Figure 2 This is a schematic diagram of a sealing and pressing mechanism according to an embodiment of this application;

[0021] Figure 3 This is a schematic diagram of a slider according to an embodiment of this application;

[0022] Figure label:

[0023] 10. Base; 11. Cantilever; 12. Slide; 13. Slider; 14. Baffle; 15. Through hole;

[0024] 20. Lever; 21. Roller; 22. Hinge shaft;

[0025] 30. Heavy object; 31. Steel wire rope; 32. Hanging pole;

[0026] 40. Static friction ring base plate. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description of this application is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining this application and are not intended to limit this application.

[0028] In related technologies, rotary kilns are thermal equipment used for calcining, roasting, or drying granular and powdery materials. During the permitted period, there are strict requirements for exhaust gas emissions, and sealing devices are required to prevent leakage during the emission or shutdown process. Currently used sealing devices are not convenient for maintaining a dynamic seal between the dynamic and static rings.

[0029] Patent CN216667690U discloses a sealing device for the tail end of a solid waste disposal gyratory furnace. The device uses a sealing and pressing mechanism to enable the dynamic and static friction rings to maintain a dynamic seal, thus solving the problem of poor sealing at the furnace tail.

[0030] However, in the above-disclosed sealing and pressing mechanism, the weight block 30 is suspended by the wire rope 31, which makes it prone to swaying and has poor stability.

[0031] In view of this, the purpose of this embodiment is to provide a rotary kiln tail gas dynamic and static ring sealing device in order to improve the stability of the heavy block.

[0032] Please see Figures 1-3 In this embodiment, a rotary kiln tail gas dynamic and static ring sealing device includes a base 10, a lever 20 and a weight block 30. The end of the lever 20 is hinged to a hanging rod 32 for screwing the weight block 30. The base 10 is provided with a cantilever 11, and the cantilever 11 is provided with a slider 13 that is slidably engaged. The hanging rod 32 passes through the inside of the slider 13.

[0033] By adopting the technical solution of this embodiment, the sliding engagement of the slider 13 and the cantilever 11 can maintain the angle between the hanging rod 32 and the cantilever 11, thereby improving the stability of the weight block 30.

[0034] It should be noted that this embodiment is a technical improvement on the sealing and pressing mechanism disclosed in the patent document with publication number CN216667690U. Compared with the existing sealing and pressing mechanism, this embodiment uses a hanging rod 32 to replace the existing steel wire rope 31, which avoids the weight block 30 from swaying relative to the steel wire rope 31. At the same time, a cantilever 11 is added to the base 10, and a slider 13 is set on the cantilever 11, so that the upper end of the hanging rod 32 passes through the slider 13, which ensures the fixation of the angle between the hanging rod 32 and the cantilever 11, thereby ensuring the stability of the weight block 30.

[0035] In this embodiment, the V-shaped lever 20 is connected to the base 10 at its inflection point via a hinge shaft 22, allowing the lever 20 to rotate around the hinge shaft 22. A rotatable roller 21 is provided at the right end of the lever 20, and the roller 21 abuts against the static friction ring base plate 40. A hanging rod 32 is hinged at the left end of the lever 20, and a disc-shaped weight 30 is screwed onto the hanging rod 32. The weight 30 and the hanging rod 32 are arranged coaxially, and the lever 20 is arranged vertically.

[0036] Additionally, a horizontally arranged cantilever 11 is welded onto the base 10. The cantilever 11 and the hanging rod 32 are located on the left side of the base 10. A groove 12 for engaging the slider 13 is provided on the cantilever 11. The groove 12 extends along the longitudinal direction of the cantilever 11, and the extension direction of the groove 12 is perpendicular to the hanging rod 32. The slider 13 is constructed as a hollow cylinder, and the outer diameter of the slider 13 is equal to the width of the groove 12. Baffles 14 are provided at both ends of the slider 13. The baffles 14 are constructed as annular rings arranged coaxially with the slider 13. The baffles 14 are symmetrically arranged at both ends of the slider 13. The axis of the slider 13 is perpendicular to the cantilever 11. The two baffles 14 are respectively attached to the upper and lower surfaces of the cantilever 11, so that the slider 13 can only slide along the groove 12, preventing the slider 13 from tilting inside the groove 12.

[0037] It should be noted that the slider 13 has a through hole 15 for the hanging rod 32 to pass through at its axis. The inner wall of the through hole 15 is smooth, and the diameter of the through hole 15 is equal to the outer diameter of the hanging rod 32. The hanging rod 32 can slide along the axial direction of the through hole 15.

[0038] In this embodiment, due to the restriction of the slider 13, the hanging rod 32 cannot swing relative to the cantilever 11. That is, the hanging rod 32 and the cantilever 11 always remain perpendicular. In the way the wire rope is connected, the weight block 30 is prevented from shaking, thus improving the stability of the weight block 30.

[0039] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A rotary kiln tail gas dynamic and static ring sealing device, comprising a base, a lever, and a weight block, characterized in that, The lever has a hinged rod at one end for engaging the weight block. The base has a cantilever with a slider that is slidably engaged. The rod passes through the slider.

2. The rotary kiln tail gas dynamic and static ring sealing device as described in claim 1, characterized in that, The cantilever is horizontally fixed to the base.

3. The rotary kiln tail gas dynamic and static ring sealing device as described in claim 2, characterized in that, The cantilever is provided with a groove for engaging the slider.

4. The rotary kiln tail gas dynamic and static ring sealing device as described in claim 3, characterized in that, The groove extends along the longitudinal direction of the cantilever.

5. The rotary kiln tail gas dynamic and static ring sealing device as described in claim 4, characterized in that, The slider is constructed as a hollow cylinder.

6. The rotary kiln tail gas dynamic and static ring sealing device as described in claim 5, characterized in that, The outer diameter of the slider is equal to the width of the groove.

7. The rotary kiln tail gas dynamic and static ring sealing device as described in claim 6, characterized in that, The slider has baffles at both ends.

8. The rotary kiln tail gas dynamic and static ring sealing device as described in claim 7, characterized in that, The baffle is configured as an annular shape arranged coaxially with the slider.

9. The rotary kiln tail gas dynamic and static ring sealing device as described in claim 8, characterized in that, The baffles are arranged symmetrically at both ends of the slider.

10. The rotary kiln tail gas dynamic and static ring sealing device as described in claim 9, characterized in that, The axis of the slider is arranged perpendicular to the cantilever.

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