Rotary kiln drying machine with longer rolling ring service life and higher adaptability

Abstract

The utility model relates to the technical field of drying machines, in particular to a rotary kiln drying machine with a rolling ring longer in service life and higher in adaptability, which comprises a motor, a speed reducer, a bearing seat, a machine frame, a drying box body and a rolling ring assembly, and the motor, the speed reducer, the bearing seat and the drying box body are arranged on the machine frame. According to the rotary kiln drying machine with the rolling rings longer in service life and adaptability, the rolling ring bodies do not make direct contact with the cylinder wall of the drying box body, so that heat transfer of the cylinder wall to the rolling rings is changed into radiation heat transfer from heat conduction, and then high-temperature heat insulation cotton is additionally arranged in gaps of the rolling rings; in this way, radiation heat transfer can be further reduced, the high-temperature heat insulation cotton can isolate most heat, meanwhile, the protection plate is additionally arranged in the rolling ring, the protection plate can play a certain heat insulation role, the service life of the rolling ring is greatly prolonged through double protection, and the heat is guided out through cooperation with the auxiliary heat dissipation assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of dryers, in particular to a rotary kiln dryer with a longer service life and stronger adaptability of the girth gear. Background Technique

[0002] As is well known, a rotary dryer is a thermal equipment widely used in non-ferrous metallurgy factories. In the process of non-ferrous metallurgy, various materials such as concentrates, fluxes, solid fuels, various slag materials, etc. often need to be dried before being fed into the furnace, and the main equipment for drying materials is the rotary dryer.

[0003] In the existing rotary kiln dryer, the girth gear is prone to heat, and the girth gear is prone to wear. The heat generated during the rotation of the equipment is not easily discharged, but is conducted to various parts of the equipment through heat conduction, especially the bearing part, which is prone to damage after being heated. Content of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the prior art, the utility model provides a rotary kiln dryer with a longer service life and stronger adaptability of the girth gear.

[0006] (2) Technical Solutions

[0007] To achieve the above object, the utility model provides the following technical solution: a rotary kiln dryer with a longer service life and stronger adaptability of the girth gear, including a motor, a reducer, a bearing seat, a frame, a drying box body and a girth gear assembly. The motor, the reducer, the bearing seat and the drying box body are arranged on the frame, the motor, the reducer, the bearing seat and the drying box body are connected in sequence, the girth gear assembly is further arranged on the drying box body, a support device for supporting the girth gear assembly is arranged on the frame, the girth gear assembly includes a girth gear body, a connecting ring, a girth gear guard plate, a bracket and a heat preservation layer. The inner side of the connecting ring is connected with the drying box body, the outer side of the connecting ring is connected with the girth gear guard plate through the bracket, the inner side of the girth gear guard plate is connected with the girth gear body, and the heat preservation layer is arranged on one side of the girth gear guard plate close to the girth gear body.

[0008] Further, in order to ensure the heat insulation effect of the heat preservation layer, the utility model is improved in that the heat preservation layer is in a U-shaped with the opening close to the connecting ring, and the top wall and two side walls of the heat preservation layer are respectively attached to the girth gear guard plate and the bracket.

[0009] Preferably, an auxiliary heat dissipation component adapted to the opening of the heat preservation layer is further arranged on the connecting ring.

[0010] In order to conveniently ensure the auxiliary heat dissipation effect, the utility model is improved in that the auxiliary heat dissipation component includes a heat dissipation frame, a heat dissipation plate and heat sinks, the heat dissipation plate is attached to the outer wall of the connecting ring, the heat dissipation plate is provided with heat sinks that penetrate into the opening of the thermal insulation layer, and the heat dissipation plate is fixed to the connecting ring through the heat dissipation frame.

[0011] Preferably, the heat sinks are arranged in several groups.

[0012] In order to facilitate the assembly and disassembly of the auxiliary heat dissipation component, the utility model is improved in that a screw is provided on the connecting ring, a socket is provided on the heat dissipation frame, the screw is matched with the socket, and a nut matched with the screw is also provided on the connecting ring.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides a rotary kiln dryer with a longer roller life and stronger adaptability, and has the following beneficial effects:

[0015] The roller ring has a longer service life and a better adaptability. The roller ring body does not directly contact the wall of the drying box. In this way, the heat transfer of the wall to the roller ring changes from heat conduction to radiation heat transfer. Then we add high-temperature insulation cotton inside the roller ring gap, which can further reduce radiation heat transfer. The high-temperature insulation cotton can isolate most of the heat. At the same time, a protective plate is added inside the roller ring, which can also play a certain role in heat insulation. This double protection greatly increases the service life of the roller ring, and then cooperates with auxiliary heat dissipation components to export heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 It is a partial front view schematic diagram of the structure of the utility model;

[0018] Figure 3 It is a partial explosion schematic diagram of the structure of the utility model;

[0019] Figure 4 It is a partial bottom view of the structure of the utility model.

[0020] In the figure: 1. motor; 2. reducer; 3. bearing seat; 4. frame; 5. drying box; 6. roller body; 7. supporting device; 8. connecting ring; 9. roller guard plate; 10. bracket; 11. insulation layer; 12. heat dissipation frame; 13. heat dissipation plate; 14. heat sink; 15. screw. DETAILED DESCRIPTION

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figure 1-4 , a rotary kiln dryer with a longer service life and better adaptability of the girth gear, comprising a motor 1, a speed reducer 2, a bearing housing 3, a frame 4, a drying box body 5 and a girth gear assembly. The motor 1, the speed reducer 2, the bearing housing 3 and the drying box body 5 are arranged on the frame 4, and the motor 1, the speed reducer 2, the bearing housing 3 and the drying box body 5 are connected in sequence. The girth gear assembly is further arranged on the drying box body 5. A supporting device 7 for supporting the girth gear assembly is arranged on the frame 4. The girth gear assembly includes a girth gear body 6, a connecting ring 8, a girth gear guard plate 9, a bracket 10 and a heat insulation layer 11. The inner side of the connecting ring 8 is connected to the drying box body 5, the outer side of the connecting ring 8 is connected to the girth gear guard plate 9 through the bracket 10, the inner side of the girth gear guard plate 9 is connected to the girth gear body 6, and the heat insulation layer 11 is arranged on one side of the girth gear guard plate 9 close to the girth gear body 6.

[0023] The motor 1 drives the speed reducer 2, and the speed reducer 2 drives the bearing housing 3 to output to the drying box body 5. The supporting device 7 provides good support for the girth gear assembly. The connecting ring 8 is connected to the drying box body 5, and the connecting ring 8 is connected to the girth gear guard plate 9 through the bracket 10. The heat of the drying box body 5 is not directly conducted to the girth gear body 6. First, the heat is conducted to the connecting ring 8, and through the blocking of the heat insulation layer 11 and the girth gear guard plate 9, the heat conduction to the girth gear body 6 is prevented.

[0024] If the heat of the drying box body 5 cannot be conducted out, it is easy to cause thermal damage to the bearings. Therefore, the heat insulation layer 11 is in a U shape with an opening close to the connecting ring 8. The top wall and two side walls of the heat insulation layer 11 are respectively attached to the girth gear guard plate 9 and the bracket 10, which can ensure heat conduction while preventing heat from transferring to the drying box body 5.

[0025] In this embodiment, the connecting ring 8 is also provided with an auxiliary heat dissipation component that is compatible with the opening of the thermal insulation layer 11. The auxiliary heat dissipation component can achieve good heat dissipation effect. The auxiliary heat dissipation component includes a heat dissipation frame 12, a heat dissipation plate 13 and a heat sink 14. The heat dissipation plate 13 is attached to the outer wall of the connecting ring 8. The heat dissipation plate 13 is provided with a heat sink 14 that penetrates into the opening of the thermal insulation layer 11. The heat dissipation plate 13 is fixed to the connecting ring 8 through the heat dissipation frame 12. The heat dissipation plates 13 are arranged in several groups. The heat dissipation frame 12 is against the connecting ring 8. The heat is conducted through the heat dissipation plate 13 and then discharged through the heat sink 14. The heat can be further dissipated through the blowing device.

[0026] During actual use, a screw 15 is provided on the connecting ring 8, and a socket is provided on the heat dissipation frame 12. The screw 15 is adapted to the socket. A nut adapted to the screw 15 is also provided on the connecting ring 8. The auxiliary heat dissipation component is fixed by the screw 15 and the nut, which is convenient for assembly and disassembly.

[0027] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0028] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

[0029] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rotary kiln dryer with a longer roller life and better adaptability, comprising a motor (1), a reducer (2), a bearing seat (3), a frame (4), a drying box (5) and a roller assembly, characterized in that: The motor (1), reducer (2), bearing seat (3) and drying box body (5) are arranged on the frame (4). The motor (1), reducer (2), bearing seat (3) and drying box body (5) are connected in sequence. The drying box body (5) is further provided with the ring gear assembly. The frame (4) is provided with a supporting device (7) for supporting the ring gear assembly. The ring gear assembly includes a ring gear body (6), a connecting ring (8), a ring gear guard plate (9), a bracket (10) and a heat insulation layer (11). The inner side of the connecting ring (8) is connected to the drying box body (5). The outer side of the connecting ring (8) is connected to the ring gear guard plate (9) through the bracket (10). The inner side of the ring gear guard plate (9) is connected to the ring gear body (6). The heat insulation layer (11) is arranged on one side of the ring gear guard plate (9) close to the ring gear body (6).

2. A rotary kiln dryer with a longer roller life and stronger adaptability according to claim 1, characterized in that: The heat insulation layer (11) is in a U shape with an opening close to the connecting ring (8). The top wall and two side walls of the heat insulation layer (11) are respectively attached to the ring gear guard plate (9) and the bracket (10).

3. A rotary kiln dryer with a longer roller life and stronger adaptability according to claim 2, characterized in that: The connecting ring (8) is further provided with an auxiliary heat dissipation assembly adapted to the opening of the heat insulation layer (11).

4. A rotary kiln dryer with a longer roller life and stronger adaptability according to claim 3, characterized in that: The auxiliary heat dissipation assembly includes a heat dissipation frame (12), a heat dissipation plate (13) and heat dissipation fins (14). The heat dissipation plate (13) is attached to the outer wall of the connecting ring (8). The heat dissipation fins (14) extending into the opening of the heat insulation layer (11) are arranged on the heat dissipation plate (13). The heat dissipation plate (13) is fixed on the connecting ring (8) through the heat dissipation frame (12).

5. A rotary kiln dryer with a longer roller life and stronger adaptability according to claim 4, characterized in that: The heat dissipation plates (13) are arranged in several groups.

6. A rotary kiln dryer with a longer roller life and stronger adaptability according to claim 5, characterized in that: A screw (15) is arranged on the connecting ring (8). A jack is arranged on the heat dissipation frame (12). The screw (15) is adapted to the jack. A nut adapted to the screw (15) is further arranged on the connecting ring (8).

Images