A rotary kiln preheater discharge device

Abstract

The application provides a rotary kiln preheater discharging device, which comprises a discharging pipe, a sleeve pipe and an extension rod, the inner edge of the sleeve pipe is provided with a convex edge, the corner of the convex edge is provided with a clamping groove, a rotatable rod piece is clamped in the clamping groove, and a limiting groove on the rod piece is clamped with a rib of the discharging pipe. In the application, the rod piece is rotatably clamped on the rib of the discharging pipe, the contact area of the sleeve pipe and the discharging pipe is reduced, and the rolling friction formed between the sleeve pipe and the discharging pipe can reduce abrasion.

Description

Technical Field

[0001] This application relates to the field of rotary kiln preheater technology, and in particular to a rotary kiln preheater discharge device. Background Technology

[0002] The preheater is an important component of the rotary kiln system, used to preheat cold materials to a suitable temperature, providing the necessary heat for the rotary kiln's heat treatment process. Existing preheaters have relatively fixed feed inlet positions, making it impossible to adjust the material stacking height according to the actual materials.

[0003] Patent CN221376266U discloses an adjustable feed pipe for a rotary kiln preheater. By setting an adjustable sleeve on the discharge pipe, the material stacking height in the rotary kiln preheater can be adjusted according to different materials.

[0004] However, in the above-disclosed design, the sleeve and the discharge pipe have a sliding fit, resulting in significant friction and thus substantial wear on the pipe fittings. Utility Model Content

[0005] In view of this, the purpose of this application is to provide a discharge device for a rotary kiln preheater in order to reduce the friction between the pipes.

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

[0007] This application provides a rotary kiln preheater discharge device, including a discharge pipe, a sleeve, and a telescopic rod. The inner edge of the sleeve is provided with a raised edge, and a groove is provided at the corner of the raised edge. A rotatable rod is engaged inside the groove, and a limiting groove on the rod is engaged with the edge of the discharge pipe.

[0008] By adopting the technical solution of this application, the rod is rotatably snapped onto the edge of the discharge pipe, which reduces the contact area between the sleeve and the discharge pipe, and the rolling friction formed between the sleeve and the discharge pipe can reduce wear.

[0009] In some implementations, the convex edge is constructed as a rectangle that fits the shape of the sleeve.

[0010] In some implementations, the plane containing the card slot is perpendicular to the edge of the discharge tube.

[0011] In some implementations, the length of the slot is equal to the length of the rod.

[0012] In some implementations, the height of the slot is equal to the outer diameter of the rod.

[0013] In some implementations, the rod is constructed as a solid, round rod.

[0014] In some implementations, the limiting groove is circular along the circumference of the rod.

[0015] In some implementations, the limiting groove is constructed in a V-shape along its cross-section.

[0016] In some implementations, the limiting groove is arranged coaxially with the rod.

[0017] In some implementations, the distance between the two ends of the rod and the limiting groove is the same. 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 the feed pipe of an existing rotary kiln preheater;

[0020] Figure 2 This is a schematic diagram of the sleeve according to an embodiment of this application;

[0021] Figure label:

[0022] 10. Discharge pipe; 11. Rib;

[0023] 20. Sleeve; 21. Protruding flange; 22. Slot; 23. Rod; 24. Limiting groove;

[0024] 30. Connecting seat;

[0025] 40. Telescopic pole. Detailed Implementation

[0026] 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.

[0027] In related technologies, the preheater is an important component of the rotary kiln system, used to preheat cold materials to a suitable temperature, providing the necessary heat for the rotary kiln's heat treatment process. Existing preheaters have relatively fixed feed inlet positions, making it impossible to adjust the material stacking height according to the actual materials.

[0028] Patent CN221376266U discloses an adjustable feed pipe for a rotary kiln preheater. By setting an adjustable sleeve 20 on the discharge pipe 10, the material stacking height in the rotary kiln preheater can be adjusted according to different materials.

[0029] However, in the above-disclosed design, the sleeve and the discharge pipe have a sliding fit, resulting in significant friction and thus substantial wear on the pipe fittings.

[0030] In view of this, the purpose of this embodiment is to provide a rotary kiln preheater discharge device in order to reduce the friction between the pipes.

[0031] Please see Figures 1-2 In this embodiment, a rotary kiln preheater discharge device includes a discharge pipe 10, a sleeve 20, and a telescopic rod 40. The inner edge of the sleeve 20 is provided with a protruding edge 21, and a groove 22 is provided at the corner of the protruding edge 21. A rotatable rod 23 is engaged inside the groove 22, and a limiting groove 24 on the rod 23 is engaged with the edge 11 of the discharge pipe 10.

[0032] In this embodiment, the rod 23 is rotatably engaged with the edge 11 of the discharge pipe 10, which reduces the contact area between the sleeve 20 and the discharge pipe 10. The rolling friction between the sleeve 20 and the discharge pipe 10 can reduce wear.

[0033] It should be noted that this embodiment is a structural improvement of the sleeve 20 in the patent with publication number CN221376266U. By adding a rod 23 inside the sleeve 20 and making the rod 23 engage with the edge 11 of the discharge pipe 10, the friction between the discharge pipe 10 and the sleeve 20 is reduced, thereby reducing wear.

[0034] In this embodiment, the sleeve 20 is fitted over the outside of the discharge pipe 10, and a connecting seat 30 is fixedly connected to the outer wall of the sleeve 20. The movable end of the telescopic rod 40 is connected to the connecting seat 30. The telescopic rod 40 is used to drive the sleeve 20 to move on the discharge pipe 10, thereby changing the overall length of the two.

[0035] In this embodiment, the protruding edge 21 is constructed into a rectangle that fits the shape of the sleeve 20. The slots 22 are formed at the four corners of the protruding edge 21. The plane of the slots 22 is perpendicular to the edge 11 of the discharge pipe 10. The length of the slots 22 is equal to the length of the rod 23, and the height of the slots 22 is equal to the outer diameter of the rod 23. The rod 23 is constructed into a solid round rod. The rod 23 is rotatably engaged inside the slots 22. The two end faces of the rod 23 abut against the two end faces of the slots 22. The limiting groove 24 is annular along the circumference of the rod 23. The limiting groove 24 is constructed into a V-shape along the cross section. The limiting groove 24 is coaxial with the rod 23. The two ends of the rod 23 are equidistant from the limiting groove 24. The limiting groove 24 is engaged with the edge 11 of the discharge pipe 10.

[0036] It should be noted that, compared with the sleeve 20 in the prior art, the sleeve 20 in this embodiment is provided with a rotatable rod 23. When the sleeve 20 is sleeved with the discharge pipe 10, the rod 23 is restricted between the two, and the rod 23 as a whole can rotate inside the slot 22. The friction between the limiting groove 24 and the ridge 11 can drive the rod 23 to rotate, so that rolling friction is formed between the sleeve 20 and the discharge pipe 10. Compared with the sliding friction between the sleeve 20 and the discharge pipe 10 in the prior art, this can reduce the wear caused by the relative movement between the two.

[0037] 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 preheater discharge device, comprising a discharge pipe, a sleeve, and a telescopic rod, characterized in that, The inner edge of the sleeve is provided with a raised edge, and a groove is provided at the corner of the raised edge. A rotatable rod is engaged inside the groove, and a limiting groove on the rod is engaged with the edge of the discharge pipe.

2. The rotary kiln preheater discharge device as described in claim 1, characterized in that, The protrusion is configured as a rectangle to fit the shape of the sleeve.

3. The rotary kiln preheater discharge device as described in claim 2, characterized in that, The plane containing the slot is perpendicular to the edge of the discharge pipe.

4. The rotary kiln preheater discharge device as described in claim 3, characterized in that, The length of the slot is equal to the length of the rod.

5. The rotary kiln preheater discharge device as described in claim 4, characterized in that, The height of the slot is equal to the outer diameter of the rod.

6. The rotary kiln preheater discharge device as described in claim 5, characterized in that, The rod is constructed as a solid round rod.

7. The rotary kiln preheater discharge device as described in claim 6, characterized in that, The limiting groove is circular along the circumference of the rod.

8. The rotary kiln preheater discharge device as described in claim 7, characterized in that, The limiting groove is constructed in a V-shape along its cross-section.

9. The rotary kiln preheater discharge device as described in claim 8, characterized in that, The limiting groove is arranged coaxially with the rod.

10. The rotary kiln preheater discharge device as described in claim 9, characterized in that, The distance between the two ends of the rod and the limiting groove is the same.

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