Retaining ring prefabricated part structure of rotary kiln

Abstract

The utility model discloses a prefabricated part structure of a material retaining ring of a rotary kiln, and relates to the technical field of material retaining rings of rotary kilns. The rotary kiln retaining ring prefabricated part structure comprises a first arc-shaped retaining ring, a second arc-shaped retaining ring and a dismounting assembly, the first arc-shaped retaining ring is composed of a first upper reinforcing ring and a first lower reinforcing ring, and the second arc-shaped retaining ring is composed of a second upper reinforcing ring and a second lower reinforcing ring. The dismounting assembly is arranged on the first arc-shaped material blocking ring and the second arc-shaped material blocking ring. Through the arrangement of the first arc-shaped material blocking ring, the second arc-shaped material blocking ring and the dismounting assembly, materials in the kiln cylinder can be distributed and borne more uniformly through symmetrical arrangement, it can be ensured that the materials in the kiln cylinder are stressed more uniformly in the rotation process, meanwhile, the inner wall of the kiln cylinder can be sealed more effectively, and the service life of the kiln cylinder is prolonged. The sealing performance and the leakage-proof effect of the rotary kiln are improved, an operator can conveniently and rapidly disassemble, overhaul and replace the rotary kiln subsequently, the installation process is simpler and faster, and meanwhile daily maintenance and inspection work are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary kiln baffle rings, and particularly relates to a prefabricated structure of a rotary kiln baffle ring. Background Art

[0002] As one of the main equipment in the direct reduction process of laterite nickel ore rotary kiln - submerged arc furnace, the rotary kiln is an inclined rotating body for high - temperature heating. The high - position end of the rotating body is the kiln tail, and the low - position end is the kiln head. During operation, materials enter from the kiln tail of the rotary kiln, and after being pre - heated, dried, and pre - reduced in the rotary kiln, they are discharged from the kiln head. To reduce the back - feeding phenomenon when materials are input at the kiln tail, and at the same time increase the resistance of the kiln tail fan to ensure the temperature inside the rotary kiln, an annular baffle ring is usually fixed on the inner wall at the kiln tail.

[0003] After exploration and analysis, in actual use, the following disadvantages exist:

[0004] Some existing rotary kilns usually set a single baffle ring. Under long - term high - temperature and mechanical operation conditions, the single baffle ring may have problems with insufficient structural stability, and may not be able to effectively bear the weight and inertial force of the materials inside the kiln barrel, resulting in deformation or loosening of the baffle ring, and further affecting the operation stability of the kiln barrel.

[0005] In summary, the present application now proposes a prefabricated structure of a rotary kiln baffle ring to solve the above - mentioned problems. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a prefabricated structure of a rotary kiln baffle ring, which can solve the problem that usually a single baffle ring is set, and the single baffle ring may have insufficient structural stability under long - term high - temperature and mechanical operation conditions.

[0007] To achieve the above purpose, the utility model provides the following technical solutions: A prefabricated structure of a rotary kiln baffle ring, comprising:

[0008] A first arc - shaped baffle ring, which is composed of a first upper reinforcing ring and a first lower reinforcing ring;

[0009] A second arc - shaped baffle ring, which is composed of a second upper reinforcing ring and a second lower reinforcing ring;

[0010] A disassembly component, which is arranged on the first arc - shaped baffle ring and the second arc - shaped baffle ring. The disassembly component includes a first reinforcing block, a card slot, a sliding groove, and a clamping block. The clamping block is slidably installed inside the sliding groove, a card slot is opened on the first reinforcing block, and the clamping block is clamped and installed inside the card slot.

[0011] Preferably, the disassembly component further includes a second reinforcing block and a spring. A chute is provided on the second reinforcing block. A spring is fixedly installed on the rear side of the clamping block, and the other end of the spring is fixedly installed on the rear inner wall of the chute. A damper is arranged inside the spring. The material retaining rings are symmetrically arranged, which is convenient for the operator to quickly disassemble, repair and replace in the follow-up, making the installation process simpler and faster, and at the same time facilitating the daily maintenance and inspection work.

[0012] Preferably, the first upper reinforcing ring and the first lower reinforcing ring are arranged opposite to the second upper reinforcing ring and the second lower reinforcing ring. A plurality of first reinforcing blocks are fixedly installed on the adjacent side walls of the first upper reinforcing ring and the first lower reinforcing ring, and a plurality of second reinforcing blocks are fixedly installed on the adjacent side walls of the second upper reinforcing ring and the second lower reinforcing ring. On the one hand, the symmetrical arrangement of the first arc-shaped material retaining ring and the second arc-shaped material retaining ring can distribute and carry the materials in the kiln barrel more evenly, which can ensure that the materials inside the kiln barrel are more evenly stressed during the rotation process, reduce the stress concentration problem caused by uneven material distribution, contribute to extending the service life of the kiln barrel and the material retaining ring, and at the same time can support and stabilize each other, reducing the deformation risk that a single material retaining ring may occur under high temperature and mechanical operating conditions. Through mutual complementation and support, the structure of the material retaining ring is more stable and can better resist the acting forces of the external environment and materials. On the other hand, it can more effectively seal the inner wall of the kiln barrel, thereby improving the sealing performance and leakage prevention effect of the rotary kiln.

[0013] Preferably, annular steel plates are fixedly installed on the inner walls of the first upper reinforcing ring, the first lower reinforcing ring, the second upper reinforcing ring and the second lower reinforcing ring. The setting can improve the overall stress of the material retaining ring. An opening is provided on the front side of the annular steel plate, and a sealing gasket is fixedly installed in the opening to improve the sealing performance at the combination.

[0014] Preferably, openings are provided on the outer walls of the first upper reinforcing ring, the first lower reinforcing ring, the second upper reinforcing ring and the second lower reinforcing ring, and sealing rings are fixedly installed in the openings to improve the sealing performance at the combination.

[0015] Preferably, a plurality of mounting plates are fixedly installed at the top and bottom of the first upper reinforcing ring, the first lower reinforcing ring, the second upper reinforcing ring and the second lower reinforcing ring and are distributed in an annular array, which is convenient for their disassembly and installation.

[0016] Compared with the prior art, the beneficial effects of the present utility model are:

[0017] (1). The prefabricated structure of the baffle ring of the rotary kiln, through the combined use of the first upper reinforcing ring, the first lower reinforcing ring, the second upper reinforcing ring and the second lower reinforcing ring. On the one hand, the symmetric arrangement of the first arc-shaped baffle ring and the second arc-shaped baffle ring can distribute and bear the materials in the kiln barrel more evenly, ensuring that the materials inside the kiln barrel are more evenly stressed during the rotation process, reducing the stress concentration problem caused by uneven material distribution, helping to extend the service life of the kiln barrel and the baffle ring. At the same time, they can support and stabilize each other, reducing the deformation risk that a single baffle ring may occur under high temperature and mechanical operating conditions. Through mutual complementation and support, the structure of the baffle ring is more stable, and it can better resist the acting forces of the external environment and materials. On the other hand, it can more effectively seal the inner wall of the kiln barrel, thus improving the sealing performance and leak prevention effect of the rotary kiln.

[0018] (2). The prefabricated structure of the baffle ring of the rotary kiln, through the combined use of the first arc-shaped baffle ring, the second arc-shaped baffle ring, the first reinforcing block, the second reinforcing block, the card slot, the sliding slot, the clamping block and the spring. The baffle ring is symmetrically arranged, which is convenient for the operator to quickly disassemble, repair and replace in the future, making the installation process simpler and faster. At the same time, it also facilitates the daily maintenance and inspection work. Brief Description of the Drawings

[0019] The following further illustrates the present utility model in conjunction with the drawings and embodiments:

[0020] Figure 1 is the three-dimensional view of the present utility model Figure 1 ;

[0021] Figure 2 is the three-dimensional view of the present utility model Figure 2 ;

[0022] Figure 3 is the three-dimensional view of the second arc-shaped baffle ring of the present utility model;

[0023] Figure 4 is the three-dimensional combined view of the first arc-shaped baffle ring and the second arc-shaped baffle ring of the present utility model.

[0024] Reference Numerals: 1. First arc-shaped baffle ring; 101. First upper reinforcing ring; 102. First lower reinforcing ring; 2. Second arc-shaped baffle ring; 201. Second upper reinforcing ring; 202. Second lower reinforcing ring; 3. First reinforcing block; 4. Second reinforcing block; 5. Card slot; 6. Sliding slot; 7. Clamping block; 8. Spring; 9. Annular steel plate; 10. Sealing gasket; 11. Sealing ring; 12. Mounting plate. Detailed Embodiment

[0025] In the description of the present utility model, it should be understood that with respect to the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., it is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0026] Please refer to Figures 1-4 , the present utility model provides a technical solution: a precast structure of a rotary kiln baffle ring, which includes a first arc-shaped baffle ring 1, a second arc-shaped baffle ring 2 and a disassembly component. The first arc-shaped baffle ring 1 is composed of a first upper reinforcing ring 101 and a first lower reinforcing ring 102. The second arc-shaped baffle ring 2 is composed of a second upper reinforcing ring 201 and a second lower reinforcing ring 202. The disassembly component is arranged on the first arc-shaped baffle ring 1 and the second arc-shaped baffle ring 2. The disassembly component includes a first reinforcing block 3, a clamping groove 5, a sliding groove 6 and a clamping block 7. The clamping block 7 is slidably installed inside the sliding groove 6. The first reinforcing block 3 is provided with a clamping groove 5, and the clamping block 7 is clamped and installed inside the clamping groove 5.

[0027] Furthermore, the disassembly component further includes a second reinforcing block 4 and a spring 8. The second reinforcing block 4 is provided with a sliding groove 6. A spring 8 is fixedly installed on the rear side of the clamping block 7. The other end of the spring 8 is fixedly installed on the rear inner wall of the sliding groove 6. A damper is arranged inside the spring 8. Align the second arc-shaped baffle ring 2 with the first arc-shaped baffle ring 1, so that the clamping block 7 on the second reinforcing block 4 slides into the inside of the sliding groove 6. When the second arc-shaped baffle ring 2 moves to be flush with the first arc-shaped baffle ring 1, the clamping block 7 is clamped and installed on the sliding groove 6 through the reaction force of the spring 8. The baffle rings are symmetrically arranged, which is convenient for the operator to quickly disassemble, repair and replace in the future, making the installation process simpler and faster, and also facilitating the daily maintenance and inspection work.

[0028] Furthermore, the first upper reinforcing ring 101 and the first lower reinforcing ring 102 are arranged opposite to the second upper reinforcing ring 201 and the second lower reinforcing ring 202. Multiple groups of first reinforcing blocks 3 are fixedly installed on the adjacent side walls of the first upper reinforcing ring 101 and the first lower reinforcing ring 102, and multiple groups of second reinforcing blocks 4 are fixedly installed on the adjacent side walls of the second upper reinforcing ring 201 and the second lower reinforcing ring 202. On the one hand, the symmetrical arrangement of the first arc-shaped baffle ring 1 and the second arc-shaped baffle ring 2 can distribute and carry the materials in the kiln barrel more evenly, ensuring that the materials inside the kiln barrel are more evenly stressed during the rotation process, reducing the stress concentration problem caused by uneven material distribution, helping to extend the service life of the kiln barrel and the baffle ring. At the same time, they can support and stabilize each other, reducing the deformation risk that a single baffle ring may occur under high temperature and mechanical operating conditions. Through mutual complementation and support, the structure of the baffle ring is more stable, and it can better resist the acting forces of the external environment and the materials. On the other hand, it can more effectively seal the inner wall of the kiln barrel, thereby improving the sealing performance and leak prevention effect of the rotary kiln.

[0029] Furthermore, annular steel plates 9 are fixedly installed on the inner walls of the first upper reinforcing ring 101 and the first lower reinforcing ring 102 and the second upper reinforcing ring 201 and the second lower reinforcing ring 202. Their setting can improve the overall stress of the baffle ring. An opening is provided on the front side of the annular steel plate 9, and a sealing gasket 10 is fixedly installed in the opening to improve the sealing performance at the combination.

[0030] Furthermore, openings are provided on the outer walls of the first upper reinforcing ring 101 and the first lower reinforcing ring 102 and the second upper reinforcing ring 201 and the second lower reinforcing ring 202, and sealing rings 11 are fixedly installed in the openings to improve the sealing performance at the combination.

[0031] Secondly, multiple groups of mounting plates 12 are fixedly installed at the tops and bottoms of the first upper reinforcing ring 101 and the first lower reinforcing ring 102 and the second upper reinforcing ring 201 and the second lower reinforcing ring 202 and are distributed in an annular array, facilitating their disassembly and installation.

[0032] Working principle: During use, first, the outer wall of the first arc-shaped baffle ring 1 is fitted to the inner wall of the rotary kiln, and the mounting plate 12 is fixed to the inner wall of the rotary kiln through bolts, so that the first arc-shaped baffle ring 1 can be integrally fixed on the rotary kiln. Then, the second arc-shaped baffle ring 2 is aligned with the first arc-shaped baffle ring 1, so that the clamping block 7 on the second reinforcing block 4 slides into the inside of the chute 6. When the second arc-shaped baffle ring 2 moves to be flush with the first arc-shaped baffle ring 1, the clamping block 7 is clamped and installed on the chute 6 through the reaction force of the spring 8, so that the first arc-shaped baffle ring 1 and the second arc-shaped baffle ring 2 can be combined together. Then, the mounting plate 12 on the second arc-shaped baffle ring 2 is fixed to the rotary kiln through bolts.

[0033] The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited to the above embodiments, and various changes can be made without departing from the gist of the present utility model within the scope of knowledge possessed by those of ordinary skill in the art.

Claims

1. A rotary kiln retaining ring prefabricated structure, characterized in that: include: A first arc-shaped material retaining ring (1), the first arc-shaped material retaining ring (1) comprising a first upper reinforcement ring (101) and a first lower reinforcement ring (102); A second arc-shaped material retaining ring (2), the second arc-shaped material retaining ring (2) being composed of a second upper reinforcement ring (201) and a second lower reinforcement ring (202); A disassembly assembly is arranged on the first arc-shaped material stop ring (1) and the second arc-shaped material stop ring (2), and comprises a first reinforcing block (3), a clamping groove (5), a slide groove (6) and a clamping block (7), wherein the clamping block (7) is slidably installed inside the slide groove (6), the first reinforcing block (3) is provided with a clamping groove (5), and the clamping block (7) is clamped and installed inside the clamping groove (5).

2. A rotary kiln retaining ring prefabricated structure according to claim 1, characterized in that: The disassembly assembly further comprises a second reinforcing block (4) and a spring (8); the second reinforcing block (4) is provided with a slide groove (6); a spring (8) is fixedly mounted on the rear side of the clamping block (7); the other end of the spring (8) is fixedly mounted on the rear inner wall of the slide groove (6); and a damper is arranged inside the spring (8).

3. The rotary kiln retaining ring prefabricated structure according to claim 2, characterized in that: The first upper reinforcement ring (101) and the first lower reinforcement ring (102) are arranged opposite to the second upper reinforcement ring (201) and the second lower reinforcement ring (202); adjacent side walls of the first upper reinforcement ring (101) and the first lower reinforcement ring (102) are fixedly mounted with a plurality of first reinforcement blocks (3); adjacent side walls of the second upper reinforcement ring (201) and the second lower reinforcement ring (202) are fixedly mounted with a plurality of second reinforcement blocks (4).

4. The rotary kiln retaining ring prefabricated structure according to claim 3 is characterized in that: An annular steel plate (9) is fixedly mounted on the inner walls of the first upper reinforcement ring (101) and the first lower reinforcement ring (102) and the second upper reinforcement ring (201) and the second lower reinforcement ring (202); an opening is provided on the front side of the annular steel plate (9), and a sealing gasket (10) is fixedly mounted in the opening.

5. The rotary kiln retaining ring prefabricated structure according to claim 4, characterized in that: The outer walls of the first upper reinforcement ring (101) and the first lower reinforcement ring (102) and the second upper reinforcement ring (201) and the second lower reinforcement ring (202) are all provided with openings, and sealing rings (11) are fixedly installed in the openings.

6. A rotary kiln retaining ring prefabricated structure according to claim 5, characterized in that: Multiple groups of mounting plates (12) are fixedly mounted on the top and bottom of the first upper reinforcement ring (101) and the first lower reinforcement ring (102) and the second upper reinforcement ring (201) and the second lower reinforcement ring (202) and are distributed in a ring array.

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