Sealing device for rotary furnace

Abstract

The utility model relates to the technical field of rotary furnace sealing, and discloses a sealing device for a rotary furnace, which comprises a furnace, the bottom end of the furnace is fixedly connected with a bearing component for supporting, the left end of the furnace is fixedly connected with a connecting disc, and the left side of the outer part of the connecting disc is in threaded connection with a sealing cover. A stationary ring is fixedly connected to the interior of the left side of the connecting disc, a rotating ring is rotatably connected to the interior of the sealing cover, a plurality of rolling balls are movably connected to the left side of the rotating ring, a plurality of telescopic rods are fixedly connected to the right ends of the rolling balls, springs are arranged outside the telescopic rods in a sleeving mode, and limiting rings are fixedly connected to the right ends of the telescopic rods; and the right end of the limiting ring is fixedly connected with a movable ring. According to the utility model, the possibility of leakage is reduced, the sealing stability is enhanced, the risk of leakage is reduced, and the rolling property of the roller can reduce the friction between the moving ring and the sealing cover during assembly and disassembly, reduce the abrasion and prolong the service life of parts.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary furnace sealing, in particular to a sealing device for a rotary furnace. Background Art

[0002] A rotary furnace is an industrial device, usually cylindrical, which can rotate around its axis. The working principle of the rotary furnace is to make the materials continuously turn in the furnace by rotation, so as to realize processes such as uniform heating, reaction or drying. The materials enter from one end of the furnace body, complete the corresponding treatment in the furnace and then are discharged from the other end. During the operation of the rotary furnace, there are high-temperature and high-pressure gases inside. If there is no sealing device, these gases will leak into the external environment, which will not only cause energy waste, but also pose a threat to the environment and the health of operators.

[0003] In the prior art, the sealing devices of some rotary furnaces usually use a moving ring and a stationary ring to make contact to provide a sealing effect. Only relying on the contact between the moving ring and the stationary ring, the sealing pressure will be affected by factors such as temperature change and vibration, resulting in unstable sealing pressure, thus increasing the risk of leakage. And the direct contact between the moving ring and the stationary ring generates a large resistance during the installation and disassembly process, increasing the operation difficulty, and even causing component damage and reducing the service life. Therefore, in view of the above deficiencies, a sealing device for a rotary furnace is proposed. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the disadvantages existing in the prior art, and to propose a sealing device for a rotary furnace, aiming to improve the problems of unstable sealing pressure, component damage during installation and disassembly, and reduced service life in the prior art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A sealing device for a rotary furnace, including a furnace, the bottom end of the furnace is fixedly connected with a bearing assembly for support, the left end of the furnace is fixedly connected with an adapter plate, the outer left side of the adapter plate is threadedly connected with a sealing cover, the left inner side of the adapter plate is fixedly connected with a stationary ring, the inner part of the sealing cover is rotatably connected with a rotating ring, the left side of the rotating ring is movably connected with a plurality of rolling balls, the right ends of the rolling balls are fixedly connected with a plurality of telescopic rods, a spring is sleeved outside the telescopic rods, the right ends of the plurality of telescopic rods are fixedly connected with a limiting ring, the right end of the limiting ring is fixedly connected with a moving ring, and a sealing ring is fixedly connected to the inner right side of the sealing cover.

[0006] Furthermore, a connecting block is fixedly connected to the bottom end of the connecting plate. A connecting rod is rotatably connected inside the connecting block. A sliding hole is formed inside the connecting rod. A bolt is slidably connected inside the sliding hole. A limiting plate is fixedly connected to the bottom end of the bolt. A receiving ring is rotatably connected to the outside of the sealing cover. A nut is threadedly connected to the outside of the bolt.

[0007] Furthermore, the bearing assembly includes two support frames. Two suction cups are fixedly connected to the bottom ends of the support frames. The inner parts of the top ends of the two support frames are fixedly connected to the bottom end of the furnace.

[0008] Furthermore, the outside of the rolling ball is in contact with the inside of the sealing cover. The outside of the limiting ring is slidably connected to the inside of the sealing cover.

[0009] Furthermore, one end of the spring is fixedly connected to the right side of the rotating ring. The other end of the spring is fixedly connected to the left side of the limiting ring.

[0010] Furthermore, the outside of the right side of the moving ring is slidably connected to the inside of the left side of the connecting plate. The right end of the moving ring is in contact with the left end of the static ring.

[0011] Furthermore, the bottom end of the receiving ring is slidably connected to the top end of the connecting rod. The top end of the bolt is rotatably connected to the bottom end of the receiving ring.

[0012] Furthermore, the top end of the nut is in contact with the bottom end of the connecting rod. The bottom end of the nut is in contact with the top end of the limiting plate. Two handles are fixedly connected to the outside of the sealing cover.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, the pressure of the spring makes the moving ring and the static ring tightly pressed, improving the reliability of the seal, reducing the possibility of leakage, enhancing the sealing stability, reducing the risk of leakage, and the rolling property of the roller can reduce the friction between the moving ring and the sealing cover during installation and disassembly, reduce wear, and extend the service life of the components.

[0015] 2. In the utility model, with the cooperation and support of the connecting rod and the connecting block, there is no need to prepare a separate placement space for the sealing cover, saving the factory's site resources, avoiding potential safety risks such as accidental collisions and drops during the process of finding a placement location for the sealing cover, and ensuring the personal safety of the operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a perspective view of a sealing device for a rotary furnace proposed by the utility model;

[0017] Figure 2 Schematic diagram of the connection plate structure of a sealing device for a rotary furnace proposed by the present utility model;

[0018] Figure 3 Schematic diagram of the sealing cover structure of a sealing device for a rotary furnace proposed by the present utility model;

[0019] Figure 4 is Figure 3 Enlarged view of location A in

[0020] Figure 5 is Figure 1 Enlarged view of location B in

[0021] Legend description:

[0022] 1. Furnace; 2. Support frame; 3. Suction cup; 4. Connection plate; 5. Sealing cover; 6. Stationary ring; 7. Rotating ring; 8. Rolling ball; 9. Telescopic rod; 10. Spring; 11. Limit ring; 12. Moving ring; 13. Sealing ring; 14. Connection block; 15. Connection rod; 16. Sliding hole; 17. Bolt; 18. Limit plate; 19. Accommodating ring; 20. Nut; 21. Handle. Specific implementation manners

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Refer to Figure 1 、 Figure 3 and Figure 4, An embodiment provided by the present utility model: A sealing device for a rotary furnace, including a furnace 1 for accommodating and processing materials. The bottom end of the furnace 1 is fixedly connected with a bearing assembly for support, ensuring that the furnace 1 will not tilt or shake due to its own weight or external vibration during operation. The bearing assembly includes two support frames 2 that share the weight of the furnace 1 together, improving the stability and reliability of the support. The bottom ends of the support frames 2 are fixedly connected with two suction cups 3. The inner parts of the top ends of the two support frames 2 are fixedly connected to the bottom end of the furnace 1. The suction cups 3 can enhance the adsorption force between the support frames 2 and the ground, improving the overall stability and effectively preventing displacement during operation due to equipment vibration or external force. The left end of the furnace 1 is fixedly connected with an adapter plate 4. The outer left side of the adapter plate 4 is threadedly connected with a sealing cover 5. The threaded connection method enables the sealing cover 5 to be firmly installed on the adapter plate 4. Through rotation, a tight combination or easy disassembly can be achieved, facilitating operation and maintenance. The adapter plate 4 is used to connect the furnace 1 and the sealing cover 5, ensuring a tight and stable connection between the two and providing a basic structure for achieving a good sealing effect;

[0025] The left inner side of the adapter plate 4 is fixedly connected with a stationary ring 6. The inner part of the sealing cover 5 is rotatably connected with a rotating ring 7. The rotating connection design of the rotating ring 7 can adapt to the relative movement between the sealing cover 5 and the internal components, reducing friction and wear and improving the service life of the sealing device. The left side of the rotating ring 7 is movably connected with a plurality of rolling balls 8. The plurality of rolling balls 8 are evenly distributed, which can reduce the friction force between the rotating ring 7 and the sealing cover 5, making the movement of the rotating ring 7 smoother. At the same time, it also helps to disperse the pressure and improve the stability of the sealing device. The outer part of the rolling balls 8 is in contact with the inner part of the sealing cover 5, reducing the direct friction between components, lowering wear and energy loss. The right ends of the rolling balls 8 are fixedly connected with a plurality of telescopic rods 9. The telescopic rods 9 can expand and contract within a certain range;

[0026] A spring 10 is sleeved outside the telescopic rod 9. The spring 10 provides an elastic restoring force for the telescopic rod 9, enabling the sealing component to automatically adjust its position when the pressure changes and maintaining stable sealing performance. One end of the spring 10 is fixedly connected to the right side of the swivel ring 7, and the other end of the spring 10 is fixedly connected to the left side of the limit ring 11. The right ends of multiple telescopic rods 9 are fixedly connected to the limit ring 11. The outside of the limit ring 11 is slidably connected to the inside of the sealing cover 5. The right end of the limit ring 11 is fixedly connected to a moving ring 12. The limit ring 11 limits the telescopic range of the telescopic rod 9 and the spring 10, preventing the sealing device from failing due to excessive telescoping, and also plays a role in connecting and fixing the moving ring 12. The outside of the right side of the moving ring 12 is slidably connected to the inside of the left side of the connection disk 4 to ensure the tightness and reliability of the seal. The right end of the moving ring 12 is in contact with the left end of the static ring 6. A sealing ring 13 is fixedly connected to the inside of the right side of the sealing cover 5. The sealing ring 13 further enhances the sealing performance between the sealing cover 5 and the connection disk 4, preventing the leakage of gas or tiny particles and improving the overall sealing effect.

[0027] Refer to Figure 1 、 Figure 2 and Figure 5 , a connection block 14 is fixedly connected to the bottom end of the connection disk 4. A connection rod 15 is rotatably connected inside the connection block 14. The rotatable connection design of the connection rod 15 enables the related components to flexibly adjust their positions within a certain angle range to adapt to different working requirements and installation conditions. A sliding hole 16 is opened inside the connection rod 15. A bolt 17 is slidably connected inside the sliding hole 16. The sliding hole 16 provides space for the sliding of the bolt 17, enabling it to move within a certain range, thereby achieving flexible connection and adjustment. The bottom end of the bolt 17 is fixedly connected to a limit disk 18. A receiving ring 19 is rotatably connected to the outside of the sealing cover 5. The rotatable connection enables it to rotate flexibly relative to the sealing cover 5, facilitating cooperation and connection with other components. The bottom end of the receiving ring 19 is slidably connected to the top end of the connection rod 15. The top end of the bolt 17 is rotatably connected to the bottom end of the receiving ring 19. A nut 20 is threadedly connected to the outside of the bolt 17. The threaded connection between the nut 20 and the bolt 17 can achieve tightening and loosening operations. The top end of the nut 20 is in contact with the bottom end of the connection rod 15, and the bottom end of the nut 20 is in contact with the top end of the limit disk 18. Two handles 21 are fixedly connected to the outside of the sealing cover 5. The handles 21 provide a convenient force application point for the operator, facilitating the installation, disassembly, and operation of the sealing cover 5 and improving work efficiency.

[0028] Working principle: During operation, furnace 1 is used to accommodate and process materials. The weight of furnace 1 is borne by the bearing assembly at its bottom end, and the weight of furnace 1 is shared by two support frames 2 together, improving the stability and reliability of the support. The two suction cups 3 at the bottom end of support frame 2 enhance the adsorption force with the ground, effectively preventing displacement caused by equipment vibration or external forces during work, and ensuring that furnace 1 will not tilt or shake due to its own weight or external interference during operation.

[0029] The connecting disk 4 at the left end of furnace 1 is used to connect furnace 1 and the sealing cover 5. The sealing cover 5 is connected to the outer left side of the connecting disk 4 through threads. This connection method enables the sealing cover 5 to be firmly installed on the connecting disk 4 by rotation, achieving a tight combination or easy disassembly, facilitating operation and maintenance, and laying a foundation for good sealing effect.

[0030] Inside the sealing cover 5, the rotational connection design of the rotating ring 7 adapts to the relative movement between it and the internal components. A plurality of rolling balls 8 are evenly distributed on the left side of the rotating ring 7. The rolling balls 8 are in contact with the inside of the sealing cover 5, reducing the friction between the rotating ring 7 and the sealing cover 5, making the movement of the rotating ring 7 smoother, and at the same time helping to disperse the pressure and improving the stability of the sealing device. A plurality of telescopic rods 9 at the right end of the rolling balls 8 can be telescoped within a certain range. The spring 10 sleeved outside the telescopic rod 9 is fixed at one end on the right side of the rotating ring 7 and at the other end on the left side of the limiting ring 11. The spring 10 provides an elastic restoring force for the telescopic rod 9. When the sealing component is subjected to pressure changes, it can automatically adjust its position. The limiting ring 11 fixedly connected to the right ends of the plurality of telescopic rods 9 slides inside the sealing cover 5, restricting the telescopic range of the telescopic rod 9 and the spring 10, preventing the sealing device from failing due to excessive telescoping. At the same time, the right side of the moving ring 12 fixedly connected to the right end of the limiting ring 11 is slidably connected to the inside of the left side of the connecting disk 4, and the right end of the moving ring 12 is in contact with the left end of the stationary ring 6 fixedly connected to the inside of the left side of the connecting disk 4, ensuring the tightness and reliability of the seal. The sealing ring 13 fixedly connected to the inside of the right side of the sealing cover 5 further enhances the sealing performance between the sealing cover 5 and the connecting disk 4, effectively preventing the leakage of gas or tiny particles, and improving the overall sealing effect;

[0031] Before turning the sealing cover 5 to separate it from the connecting plate 4, it is first necessary to turn the nut 20 to eliminate the tightening force between the nut 20 and the connecting rod 15. Then, the receiving ring 19 drives the bolt 17 to slide inside the sliding hole 16. At this time, turn the sealing cover 5 inside the receiving ring 19 by turning the handle 21. During the rotation, the receiving ring 19 also drives the bolt 17 to move inside the sliding hole 16, so that the sealing cover 5 can move. After unlocking, the connecting rod 15 can rotate inside the connecting block 14, which can provide support for the sealing cover 5 after unlocking, saving the factory's site resources, avoiding safety risks such as accidental collisions and drops that may occur during the process of finding a placement location for the sealing cover 5, and ensuring the personal safety of the operators.

[0032] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A sealing device for a rotary kiln, comprising a kiln (1), characterized in that: The bottom end of the furnace (1) is fixedly connected to a bearing assembly for support, the left end of the furnace (1) is fixedly connected to a connection plate (4), the left side of the outside of the connection plate (4) is threadedly connected to a sealing cover (5), the left side of the connection plate (4) is fixedly connected to a static ring (6), the inside of the sealing cover (5) is rotatably connected to a swivel (7), the left side of the swivel (7) is movably connected to a plurality of rolling balls (8), the right end of the rolling balls (8) is fixedly connected to a plurality of telescopic rods (9), the outside of the telescopic rods (9) is sleeved with a spring (10), the right ends of the plurality of telescopic rods (9) are fixedly connected to a limiting ring (11), the right end of the limiting ring (11) is fixedly connected to a moving ring (12), and the right side of the sealing cover (5) is fixedly connected to a sealing ring (13).

2. A sealing device for a rotary kiln according to claim 1, characterized in that: The bottom end of the connecting plate (4) is fixedly connected to a connecting block (14), the inside of the connecting block (14) is rotatably connected to a connecting rod (15), a sliding hole (16) is provided inside the connecting rod (15), the inside of the sliding hole (16) is slidably connected to a bolt (17), the bottom end of the bolt (17) is fixedly connected to a limiting plate (18), the outside of the sealing cover (5) is rotatably connected to a containing ring (19), and the outside of the bolt (17) is threadedly connected to a nut (20).

3. The sealing device for a rotary kiln according to claim 1, characterized in that: The bearing assembly comprises two support frames (2), the bottom ends of the support frames (2) are fixedly connected to two suction cups (3), and the top ends of the two support frames (2) are internally fixedly connected to the bottom end of the furnace (1).

4. The sealing device for a rotary kiln according to claim 1, characterized in that: The outside of the rolling ball (8) contacts the inside of the sealing cover (5), and the outside of the limiting ring (11) is slidably connected to the inside of the sealing cover (5).

5. The sealing device for a rotary kiln according to claim 1, characterized in that: One end of the spring (10) is fixedly connected to the right side of the rotating ring (7), and the other end of the spring (10) is fixedly connected to the left side of the limiting ring (11).

6. The sealing device for a rotary kiln according to claim 1, characterized in that: The right outer portion of the moving ring (12) is slidably connected to the left inner portion of the connecting plate (4), and the right end of the moving ring (12) is in contact with the left end of the stationary ring (6).

7. The sealing device for a rotary kiln according to claim 2, characterized in that: The bottom end of the accommodating ring (19) is slidably connected to the top end of the connecting rod (15), and the top end of the bolt (17) is rotatably connected to the bottom end of the accommodating ring (19).

8. The sealing device for a rotary kiln according to claim 2, characterized in that: The top end of the nut (20) contacts the bottom end of the connecting rod (15), the bottom end of the nut (20) contacts the top end of the limiting plate (18), and the outside of the sealing cover (5) is fixedly connected with two handles (21).

Images