Follow-up packing sealing structure based on kiln body temperature
By using a follow-up packing sealing structure, an expansion joint mechanism, and nitrogen isolation, the safety hazards caused by gaps in the rotary kiln sealing structure at high temperatures are solved, achieving stable sealing and safety.
Patent Information
- Application Number
- CN202511125247.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-12
- Publication Date
- 2025-11-07
AI Technical Summary
Traditional rotary kiln sealing structures are prone to gaps under high-temperature conditions due to differences in thermal expansion coefficients, leading to the leakage of toxic gases and the infiltration of oxygen, thus posing safety hazards.
The system adopts a temperature-controlled, follow-up packing seal structure. Through the combination of a support mechanism, an expansion joint mechanism, a pressure roller mechanism, and a nitrogen supply mechanism, the expansion joint mechanism expands in a follow-up manner to reduce gaps, and nitrogen is used to prevent oxygen from seeping in, thus ensuring stable rotation of the kiln.
It effectively prevents the leakage of toxic gases, reduces safety hazards, ensures the stability of the kiln body rotation, and improves the sealing effect.
Smart Images
Figure CN120907329A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to a rotary kiln sealing technology field, in particular to a follow-up type filler sealing structure based on kiln body temperature. BACKGROUND
[0002] Waste lithium battery recycling is a key link in the sustainable development of new energy industry, and the high-temperature pyrolysis method has become the mainstream technology due to its high processing efficiency and high metal recovery rate.
[0003] At present, the rotary kiln is generally used as a pyrolysis device in the industry, and the rotary kiln is a pyrolysis device widely used in cement, metallurgy, ceramics, environmental protection and other industries, mainly composed of a kiln head, a kiln tail and a kiln body, and the kiln head, the kiln tail and the kiln body are sealingly connected, but when the kiln body operates at 300-800 DEG C, the traditional sealing structure is easy to produce gaps due to the difference in the thermal expansion coefficient, which leads to the leakage of toxic gas, the penetration of oxygen and the occurrence of safety hazards such as combustion and explosion. SUMMARY
[0004] In order to improve the above problems, the application provides a follow-up type filler sealing structure based on kiln body temperature.
[0005] The follow-up type filler sealing structure based on kiln body temperature provided by the application adopts the following technical scheme: A follow-up type filler sealing structure based on kiln body temperature, comprising a kiln body, a cover, a supporting mechanism, an expansion joint mechanism, a pressure roller mechanism and a nitrogen conveying mechanism; the kiln body and the cover are connected through the expansion joint mechanism; the supporting mechanism is installed on the outer wall of the cover to limit the rotation of the cover and the expansion joint mechanism; the pressure roller assembly is installed on the expansion joint mechanism and compresses the connection point of the kiln body and the expansion joint mechanism; the nitrogen conveying mechanism is installed on the kiln body and conveys nitrogen into the expansion joint mechanism to isolate the inside and outside of the expansion joint mechanism from air.
[0006] By adopting the above technical scheme, the supporting mechanism provides support and limiting for the cover and the expansion joint mechanism, the cover and the kiln body are connected through the expansion joint mechanism, the expansion joint mechanism forms a gas flow channel between the cover and the kiln body, and the expansion joint mechanism expands in a follow-up mode with the gas or the kiln body temperature, thereby reducing the gap generated when the kiln body and the cover are connected and the gap generated due to the thermal expansion after the connection, preventing the leakage of toxic gas, and the pressure roller mechanism connects the kiln body and the expansion joint mechanism, so that the kiln body can rotate along the expansion joint mechanism without affecting the rotation, and the expansion joint mechanism does not rotate, and the nitrogen conveying mechanism conveys nitrogen into the expansion joint mechanism, thereby isolating the outside oxygen from entering the kiln body by using nitrogen, and reducing the safety hazards.
[0007] Optionally, the material cover is provided with a first connecting ring at one end, the expansion joint mechanism is provided with a second connecting ring, a third connecting ring, a fourth connecting ring and a fifth connecting ring in sequence from the end close to the material cover to the end close to the kiln body, the first connecting ring is butted with the second connecting ring, and the kiln body is provided with a sixth connecting ring at one end, and the sixth connecting ring is butted with the fifth connecting ring.
[0008] By adopting the above technical scheme, the first connecting ring to the sixth connecting ring are butted with each other in pairs, so that the material cover and the kiln body can be stably connected with the expansion joint mechanism, and gas discharge is prevented.
[0009] Optionally, the expansion joint mechanism comprises a metal bellows, a first lead screw, a first nut, a first elastic part and an inner side plate, the metal bellows is connected between the second connecting ring and the third connecting ring, the metal bellows is connected with the inner side plate inside, and there is a spacing space between the two, the first connecting ring, the second connecting ring, the third connecting ring and the fourth connecting ring are all provided with a through hole, the first lead screw is arranged in the through hole, and a plurality of first nuts are screwed on the first lead screw, the first elastic part is wound on the first lead screw, one end of the first elastic part abuts against the first nut, and the other end of the first elastic part abuts against the third connecting ring.
[0010] By adopting the above technical scheme, the expansion effect is provided by the metal bellows, the first lead screw penetrates through the first connecting ring to the fourth connecting ring, and is locked by the plurality of first nuts, so that the elastic force of the first elastic part can be adjusted by rotating the first nut to provide compensation error and buffering capacity, and the expansion degree and compression degree of the metal bellows can be adjusted by rotating the first nut.
[0011] Optionally, a plurality of through holes are provided along the circumferential direction of the first connecting ring, the second connecting ring, the third connecting ring and the fourth connecting ring.
[0012] By adopting the above technical scheme, the first lead screw is arranged in each through hole, so that a plurality of first lead screws are provided synchronously, the metal bellows is adjusted by the plurality of first lead screws at the same time, so as to ensure the stress balance of the metal bellows and the bending resistance and rotation resistance of the first lead screw, and prevent the metal bellows from being bent or rotated from any side.
[0013] Optionally, the expansion joint mechanism further comprises a sealing disc, the sealing disc is connected with the fourth connecting ring and the fifth connecting ring at two ends respectively, the third connecting ring is butted with the fourth connecting ring, the two are tightly connected by the first lead screw and the first nut, the fifth connecting ring is butted with the sixth connecting ring, and the fifth connecting ring and the sixth connecting ring are tightly connected by the pressing wheel mechanism.
[0014] By adopting the technical scheme, the sealing disc provides the extension of the kiln body, the first elastic part provides the compression of the third connecting ring to the fourth connecting ring, the elastic compression connection is used to provide the buffering and adaptation effects during the expansion, and the internal airflow backflow is prevented, the fifth connecting ring is connected with the sixth connecting ring, the sixth connecting ring is compressed to the fifth connecting ring through the compression wheel mechanism, and the kiln body can drive the sixth connecting ring to rotate without affecting the sealing connection with the fifth connecting ring.
[0015] Optionally, the inner side plate extends to the sealing disc, the nitrogen conveying mechanism is connected with the sealing disc, and nitrogen is conveyed into the spacing space between the inner side plate and the metal bellows through the sealing disc.
[0016] By adopting the technical scheme, the nitrogen conveying mechanism conveys nitrogen from the sealing disc, part of the nitrogen is conveyed along the inner side plate to the metal bellows, and part of the nitrogen covers the sealing disc to prevent the leakage of toxic gas.
[0017] Optionally, the compression wheel mechanism comprises a fixed part, a compression wheel part, a second lead screw, a second nut and a second elastic part; the compression wheel part is connected with the fixed part, the second lead screw is installed on the fixed part; the fifth connecting ring is provided with a mounting hole, the second lead screw penetrates through the mounting hole, the second nut is screwed with the second lead screw, and the second nut is located on the side close to the fourth connecting ring; the second elastic part is wound on the second lead screw, one end of the second elastic part abuts against the second nut, and the other end abuts against the fifth connecting ring; the fixed part and the compression wheel part are located on the side of the fifth connecting ring close to the kiln body, and the compression wheel part abuts against the sixth connecting ring under the action of the elastic force of the second elastic part.
[0018] By adopting the technical scheme, the fixed part is located on the side of the fifth connecting ring close to the kiln body, the second elastic part provides the elastic force acting on the compression wheel part is adjusted by the different positions of the second nut screwed with the second lead screw, so that the compression of the sixth connecting ring is adjusted, and when the sixth connecting ring rotates with the kiln body, the compression wheel part rolls along the surface of the sixth connecting ring synchronously.
[0019] Optionally, a plurality of compression wheel mechanisms are arranged along the circumferential direction of the fifth connecting ring and the sixth connecting ring.
[0020] By adopting the technical scheme, when a plurality of compression wheel mechanisms are arranged, the sixth connecting ring can be compressed from multiple positions by the compression wheel mechanisms, so as to ensure the stability of the connection, and when the sixth connecting ring rotates, the compression and rolling actions of the plurality of compression wheel mechanisms ensure the force balance and reduce the occurrence of deviation.
[0021] Optionally, the supporting mechanism comprises a fixed support, a fixed rail and a supporting wheel; the fixed rail circumscribes the workbench to provide a rotation supporting point for limiting the rotation of the material cover; the fixed support is mounted on the material cover, and the supporting wheel is connected with the fixed support and slidably connected with the fixed rail.
[0022] By adopting the above technical scheme, the position of the fixed rail is fixed, and the fixed rail is connected with the workbench outside. When the kiln body expands at high temperature and the expansion joint mechanism expands, the material cover can be adjusted in position synchronously and expand synchronously with the expansion joint mechanism. The material cover can move along the fixed rail through the fixed support and the supporting wheel to adapt to different expansion degrees, and the expansion joint mechanism and the material cover are limited to rotate with the kiln body Optionally, the nitrogen conveying mechanism comprises a ring-shaped pipe and a conveying hose; the ring-shaped pipe is sleeved on the outer wall of the expansion joint mechanism, and a nitrogen conveying port is formed in the ring-shaped pipe; one end of the conveying hose is in communication with the ring-shaped pipe, and the other end of the conveying hose is in communication with the expansion joint mechanism.
[0023] By adopting the above technical scheme, the ring-shaped pipe is arranged along the outer wall of the sealing disc of the expansion joint mechanism, nitrogen is conveyed into the ring-shaped pipe through the nitrogen conveying port, the ring-shaped pipe is filled with nitrogen, and nitrogen is conveyed into the sealing disc through the conveying hose at different positions to ensure that nitrogen is supplied to each position in the sealing disc and the nitrogen conveying is uniform.
[0024] In summary, the present application has at least one of the following beneficial technical effects: 1. The supporting mechanism provides support and position limitation for the material cover and the expansion joint mechanism. The material cover and the kiln body are connected through the expansion joint mechanism. The expansion joint mechanism forms a gas flow channel between the material cover and the kiln body, and the expansion joint mechanism expands with the gas or the kiln body temperature to reduce the gap generated when the kiln body and the material cover are connected and the gap generated due to thermal expansion after connection, thereby preventing the leakage of toxic gas. The kiln body and the expansion joint mechanism are connected through the pressing wheel mechanism, so that the kiln body can rotate along the expansion joint mechanism without affecting the rotation, and the expansion joint mechanism does not rotate. The nitrogen conveying mechanism can convey nitrogen into the expansion joint mechanism to prevent external oxygen from entering the kiln body and reduce the safety hazard; 2. The first connecting ring and the sixth connecting ring are mutually butted to stably connect the material cover and the kiln body with the expansion joint mechanism and prevent gas from being discharged; 3. The metal bellows provides expansion. The first screw rod penetrates through the first connecting ring to the fourth connecting ring and is locked by the plurality of first nuts. The first elastic part can be adjusted in elasticity by rotating the first nut to provide error compensation and buffering capacity. The expansion degree and the compression degree of the metal bellows can be adjusted by rotating the first nut. 4. A first lead screw is arranged in each through hole, so that a plurality of first lead screws are synchronously arranged, and the metal bellows is adjusted by the plurality of first lead screws at the same time, so as to ensure the force balance of the metal bellows and the bending resistance and rotation resistance of the first lead screw, and prevent the metal bellows from being bent or rotated from any side. BRIEF DESCRIPTION OF DRAWINGS
[0025] Figure 1 is a first perspective view of a sealing structure in an embodiment of the present application; Figure 2 is a side view of a sealing structure in some embodiments of the present application; Figure 3 is a second perspective view of a sealing structure in some embodiments of the present application; Figure 4 is a cross-sectional view of a sealing structure in some embodiments of the present application; Figure 5 is a perspective view of a pressing wheel mechanism in some embodiments of the present application; Figure 6 is a perspective view of a nitrogen conveying mechanism in some embodiments of the present application; The marks in the drawings are: 1, kiln body, 11, sixth connecting ring, 111, high-carbon fiber sealing ring, 2, cover, 21, first connecting ring, 211, through hole, 3, supporting mechanism, 31, fixed support, 32, fixed rail, 33, supporting wheel, 4, expansion joint mechanism, 41, second connecting ring, 42, third connecting ring, 43, fourth connecting ring, 44, fifth connecting ring, 441, mounting hole, 45, metal bellows, 46, first lead screw, 47, first nut, 48, first elastic part, 49, inner side plate, 40, sealing disc, 5, pressing wheel mechanism, 51, fixed part, 52, pressing wheel part, 53, second lead screw, 54, second nut, 55, second elastic part, 6, nitrogen conveying mechanism, 61, annular tube, 611, nitrogen conveying port, 62, conveying hose. DETAILED DESCRIPTION
[0026] The embodiments of the present application are described below through specific and concrete examples, and those skilled in the art can easily understand other advantages and effects of the present application from the disclosed information. The present application can also be implemented or applied in different specific embodiments, and the details in the present application can be modified or changed according to different viewpoints and application systems without departing from the spirit of the present application. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.
[0027] The embodiments of the present application will be described below in detail with reference to the accompanying drawings, so that those skilled in the art can easily implement the present application. The present application can be embodied in various ways, and is not limited to the embodiments described herein.
[0028] In the description of the present application, the expressions of "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" etc. mean that the specific features, structures, materials or characteristics represented in connection with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials or characteristics represented can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the different embodiments or examples represented in the present application and the features of the different embodiments or examples can be combined and integrated by those skilled in the art without contradiction, if necessary.
[0029] In addition, the terms "first", "second" are only used to represent the objects, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.
[0030] Throughout the specification, when it is said that a device is "connected" to another device, it not only includes the case of "direct connection", but also includes the case of "indirect connection" in which other elements are placed therebetween. In addition, when it is said that a device "includes" a certain constituent element, unless otherwise specifically stated, other constituent elements are not excluded, but it means that other constituent elements can also be included.
[0031] The embodiments of the present application will be described below in detail with reference to the accompanying drawings, so that those skilled in the art can easily implement the present application. The present application can be embodied in various ways, and is not limited to the embodiments described herein. Figure 1 - The accompanying drawings Figure 6 The present application will be described in further detail.
[0032] The embodiments of the present application disclose a follow-up type filler sealing structure based on kiln body temperature.
[0033] A follow-up type filler sealing structure based on kiln body temperature, with reference to Figure 1As shown, including kiln body 1, cover 2, supporting mechanism 3, expansion joint mechanism 4, pressure wheel mechanism 5 and nitrogen delivery mechanism 6; kiln body 1 is the main structure of calcination, the required calcination material is located in the kiln body 1, the kiln body 1 is connected with the driving device (not shown in the figure) outside the kiln body 1 to drive the kiln body 1 to pivot, the cover 2 is the kiln head cover or the kiln tail cover, the kiln body 1 and the cover 2 are connected through the expansion joint mechanism 4, that is, one end of the expansion joint mechanism 4 is connected with the kiln body 1, and the other end is connected with the cover 2, the expansion joint mechanism 4 is used for compensating the error and jumping of the kiln body 1, keeping the concentricity and straightness, and realizing the temperature following type packing seal of the kiln body 1.
[0034] The expansion joint mechanism 4 has the functions of compensating the manufacturing error and the jumping in use of the kiln body 1, ensuring the concentricity and straightness, and when the calcination kiln body 1 expands due to high temperature, the expansion joint mechanism 4 has corresponding buffering capacity and certain flexibility, and can freely swing well.
[0035] The supporting mechanism 3 is installed on the outer wall of the cover 2 and limits rotation, and the supporting mechanism 3 extends to the ground or an external workbench to provide support for the cover 2 and limit the rotation of the cover 2 and the expansion joint mechanism 4 following the kiln body 1, that is, limit the rotation, support or radial movement path of the sealing device.
[0036] The pressure wheel assembly is installed on the expansion joint mechanism 4, the connection mode of the pressure wheel assembly and the kiln body 1 is abutment, and the connection point of the kiln body 1 and the expansion joint mechanism 4 is pressed tightly, which does not affect the pivoting effect of the kiln body 1 while providing the fastening of the connection.
[0037] The nitrogen delivery mechanism 6 is installed on the kiln body 1 and delivers nitrogen into the expansion joint mechanism 4, providing an oxygen-free reaction environment and a cooling effect.
[0038] Specifically, the supporting mechanism 3 provides support and limiting for the cover 2 and the expansion joint mechanism 4, the cover 2 and the kiln body 1 are connected through the expansion joint mechanism 4, the expansion joint mechanism 4 forms a gas flow channel between the cover 2 and the kiln body 1, and the expansion joint mechanism 4 follows the gas or the temperature of the kiln body 1 to expand, thereby reducing the gap generated when the kiln body 1 and the cover 2 are connected, and the gap generated due to the thermal expansion after the connection, thereby preventing the leakage of toxic gas, the pressure wheel mechanism 5 connects the kiln body 1 and the expansion joint mechanism 4, so that the kiln body 1 can rotate along the expansion joint mechanism 4 without affecting the rotation, and the expansion joint mechanism 4 will not rotate, and the nitrogen delivery mechanism 6 can deliver nitrogen into the expansion joint mechanism 4, thereby isolating the external oxygen from entering the kiln body 1 by using nitrogen, reducing the safety hazard.
[0039] Further, referring to Figure 2 and Figure 3As shown, the material cover 2 is provided with a first connecting ring 21 at one end, the expansion joint mechanism 4 is provided with a second connecting ring 41, a third connecting ring 42, a fourth connecting ring 43 and a fifth connecting ring 44 in sequence from the end close to the material cover 2 to the end close to the kiln body 1, the first connecting ring 21 is butted with the second connecting ring 41 to connect the material cover 2 with the expansion joint mechanism 4, and the kiln body 1 is provided with a sixth connecting ring 11 at one end, the sixth connecting ring 11 is butted with the fifth connecting ring 44 to connect the kiln body 1 with the expansion joint mechanism 4.
[0040] Among them, the first connecting ring 21 to the sixth connecting ring 11 can adopt a ring structure of steel alloy or a high-fiber sealing ring, in the butted connecting rings, such as the first connecting ring 21 butted with the second connecting ring 41 and the fifth connecting ring 44 butted with the sixth connecting ring 11, a sealing pad is further provided between the butted connecting rings, and the sealing pad is preferably an asbestos rubber pad with a thickness of 3mm.
[0041] Among them, the first connecting ring 21 to the fifth connecting ring 44 are the same in style and size, and the sixth connecting ring 11 is smaller in size than the fifth connecting ring 44.
[0042] Among them, when the sixth connecting ring 11 is welded on the kiln body 1, it is not located at the end of the kiln body 1, i.e. the kiln port, but is arranged away from the kiln port, so that when the sixth connecting ring 11 is butted with the fifth connecting ring 44, a part of the kiln port of the kiln body 1 will extend into the expansion joint mechanism 4, so that the kiln body 1 can directly extend into the expansion joint mechanism 4 for discharging gas, and the airflow will have a fixed flow path and flow direction, i.e. the gas directly flows from the kiln port of the kiln body 1 located in the expansion joint mechanism 4 towards the material cover 2, and will not return to the sixth connecting ring 11, thereby reducing the required sealing degree of the sixth connecting ring 11 and the fifth connecting ring 44.
[0043] Among them, referring to Figure 4 As shown, the sixth connecting ring 11 is further provided with a high-carbon fiber sealing ring 111 between the fifth connecting ring 44 and the sixth connecting ring 11, which can reduce the contact area of the fifth connecting ring 44 and the sixth connecting ring 11 and improve the pivoting stability of the kiln body 1.
[0044] In some embodiments, referring to Figure 3 and Figure 4 As shown, the expansion joint mechanism 4 comprises a metal bellows 45, a first lead screw 46, a first nut 47, a first elastic part 48 and an inner side plate 49; the metal bellows 45 is connected between the second connecting ring 41 and the third connecting ring 42, and has a plurality of corrugated walls, so that it can be contracted under force to achieve expansion or adapt to expansion.
[0045] The metal bellows 45 is connected with the inner side plate 49 and there is a spacing space between the metal bellows 45 and the inner side plate 49. The inner side plate 49 can prevent dust in the kiln body 1 from entering the spacing space of the metal bellows 45. The spacing space has two main functions. First, the dust spacing and temperature spacing can reduce the expansion effect caused by the temperature of the metal bellows 45. Second, the spacing space can be communicated with the nitrogen gas delivered by the nitrogen delivery mechanism 6. The nitrogen delivery mechanism 6 can deliver nitrogen gas into the spacing space to isolate the temperature and the gas by filling the nitrogen gas, thereby further improving the cooling effect.
[0046] The first connecting ring 21, the second connecting ring 41, the third connecting ring 42 and the fourth connecting ring 43 are all provided with a through hole 211. A first screw rod 46 is inserted into the through hole 211. A plurality of first nuts 47 are screwed on the first screw rod 46. After the first screw rod 46 is inserted into the through hole 211, the first screw rod 46 directly penetrates the first connecting ring 21 to the fourth connecting ring 43, thereby ensuring that the first connecting ring 21 to the fourth connecting ring 43 will not be offset and rotated. Then, the plurality of first nuts 47 are screwed in. The number of the first nuts 47 can be 4-5.
[0047] The example is taken as an example of four first nuts 47. After the first screw rod 46 penetrates the first to fourth connecting rings 43 through the through hole 211, one first nut 47 is screwed on one side of the first connecting ring 21. The second first nut 47 is screwed on the other side of the first connecting ring 21 which is close to the second connecting ring 41. The two first nuts 47 are used to fasten the first connecting ring 21 and the second connecting ring 41. The third first nut 47 is screwed between the second connecting ring 41 and the third connecting ring 42. The fourth first nut 47 is screwed on the side of the fourth connecting ring 43 which is close to the kiln body 1. The fourth first nut 47 is used to limit the position of the first screw rod 46 to prevent the first screw rod 46 from being separated from the through hole 211.
[0048] The first elastic part 48 is wound on the first screw rod 46 and one end of the first elastic part 48 abuts against the first nut 47 and the other end of the first elastic part 48 abuts against the third connecting ring 42. The first elastic part 48 can be a spring. The first screw rod 46 is located between the second connecting ring 41 and the third connecting ring 42 and abuts against the third first nut 47. Therefore, when the third first nut 47 rotates along the first screw rod 46, the position of the first screw rod 46 can be adjusted, thereby adjusting the elastic force of the first elastic part 48 on the third connecting ring 42 to provide error compensation and buffering capacity. The first nuts 47 on both sides of the first connecting ring 21 and the second connecting ring 41 and on one side of the fourth connecting ring 43 can adjust the expansion degree and the compression degree of the metal bellows 45.
[0049] Further, with reference to Figure 3As shown, the through holes 211 are arranged along the circumferential direction of the first connecting ring 21, the second connecting ring 41, the third connecting ring 42 and the fourth connecting ring 43, and each of the through holes 211 is provided with the first lead screw 46, so that the first lead screw 46 is provided with a plurality of first lead screws 46, and the metal bellows 45 is adjusted by the plurality of first lead screws 46 at the same time, so as to ensure the force balance of the metal bellows 45 and the bending resistance and rotation resistance of the first lead screw 46, and prevent the metal bellows 45 from being bent or rotated from any side.
[0050] Further, the expansion joint mechanism 4 further comprises a sealing disc 40, the two ends of the sealing disc 40 are connected with the fourth connecting ring 43 and the fifth connecting ring 44 respectively, and the sealing disc 40 is used to provide the extension of the kiln body 1, that is, the kiln port end of the kiln body 1 extends into the sealing disc 40 and extends to the metal bellows 45, so that the gas cannot flow back to the sixth connecting ring 11, and the outer wall of the sealing disc 40 can be provided with a plurality of reinforcing ribs to ensure that the fourth connecting ring 43 and the fifth connecting ring 44 have sufficient bearing capacity when connected.
[0051] The third connecting ring 42 and the fourth connecting ring 43 are connected by the first lead screw 46 and the first nut 47, and the fourth first nut 47 is abutted to the wall surface of the fourth connecting ring 43, and the other side is abutted to the third connecting ring 42 by the first elastic part 48, the third connecting ring 42 is pressed tightly to the fourth connecting ring 43 by the elastic force of the first elastic part 48, and the rigid connection is abandoned, and the elastic pressing connection is used, so that the expansion provides the buffering and adaptive effect.
[0052] The fifth connecting ring 44 and the sixth connecting ring 11 are connected, and the fifth connecting ring 44 and the sixth connecting ring 11 are tightly connected by the pressing wheel mechanism 5, and the size of the fifth connecting ring 44 is greater than that of the sixth connecting ring 11, so that when the sixth connecting ring 11 is tightly attached to the fifth connecting ring 44, the pressing wheel mechanism 5 can be used for pressing.
[0053] Specifically, the sealing disc 40 provides the extension of the kiln body 1, and the first elastic part 48 provides the pressing of the third connecting ring 42 to the fourth connecting ring 43, the elastic pressing connection is used, so that the expansion provides the buffering and adaptive effect, and prevents the backflow of the internal airflow, the fifth connecting ring 44 and the sixth connecting ring 11 are connected, and the sixth connecting ring 11 is pressed to the fifth connecting ring 44 by the pressing wheel mechanism 5, so that the kiln body 1 can drive the sixth connecting ring 11 to rotate without affecting the sealing connection with the fifth connecting ring 44.
[0054] Further, referring to Figure 3 and Figure 4As shown, the inner plate 49 extends to the sealing disc 40, and the inner plate 49 is not connected or welded with the sealing disc 40, but is spaced apart from the sealing disc 40 to form a channel for conveying gas flow. The nitrogen conveying mechanism 6 is connected with the sealing disc 40, and conveys nitrogen gas to the space between the inner plate 49 and the metal bellows 45 through the sealing disc 40, so that the space in the inner plate 49 is also filled with part of the nitrogen gas to reduce the temperature.
[0055] In some embodiments, the pressure roller mechanism 5 includes a fixed part 51, a pressure roller part 52, a second lead screw 53, a second nut 54, and a second elastic part 55. The pressure roller part 52 is connected with the fixed part 51, the second lead screw 53 is installed on the fixed part 51, and the pressure roller part 52 can be a cylindrical pressure roller extending with a pivot shaft and a connecting lead screw. The cylindrical pressure roller can rotate along the pivot shaft, the fixed part 51 can be a pressure roller seat, and the connection between the pressure roller part 52 and the fixed part 51 can be threaded. The fixed part 51 can be provided with a fixed hole, and the connecting lead screw can be screwed into the nut after penetrating the fixed hole to fix the pressure roller part 52 on the fixed part 51.
[0056] The second lead screw 53 is fixedly installed on the fixed part 51, so when the mounting hole 441 is formed on the fifth connecting ring 44, the second lead screw 53 can penetrate the mounting hole 441 and extend towards the fourth connecting ring 43. The second nut 54 is screwed with the second lead screw 53, and the second nut 54 is located on the side close to the fourth connecting ring 43. The second nut 54 can be provided with one.
[0057] The second elastic part 55 is wound on the second lead screw 53, one end of the second elastic part 55 abuts against the second nut 54, and the other end abuts against the fifth connecting ring 44. The second elastic part 55 can be a spring, and the second elastic part 55 provides a pressing force of the pressure roller part 52 on the sixth connecting ring 11. The size of the elastic force of the second elastic part 55 can be adjusted by the screwing position of the second nut 54 on the second lead screw 53 to adjust the pressing force of the pressure roller part 52 on the sixth connecting ring 11.
[0058] Specifically, the fixed part 51 is located on the side of the fifth connecting ring 44 close to the kiln body 1, and the second elastic part 55 provides the pressure roller part 52 with an elastic force which is adjusted by the different screwing positions of the second nut 54 on the second lead screw 53, so that the pressing force of the pressure roller part 52 on the sixth connecting ring 11 is adjusted. When the sixth connecting ring 11 rotates with the kiln body 1, the pressure roller part 52 rolls along the surface of the sixth connecting ring 11 synchronously.
[0059] Further, the pressing wheel mechanism 5 is provided with a plurality of pressing wheel mechanisms 5, and the plurality of pressing wheel mechanisms 5 are arranged along the circumferential direction of the fifth connecting ring 44 and the sixth connecting ring 11. When the plurality of pressing wheel mechanisms 5 are arranged, the sixth connecting ring 11 can be pressed from multiple positions by the pressing wheel mechanism 5, so as to ensure the stability of the connection. When the sixth connecting ring 11 rotates, the pressing and rolling effects of the plurality of pressing wheel mechanisms 5 ensure the balance of force and reduce the occurrence of deviation.
[0060] In some embodiments, as shown in Figure 1 and Figure 2 The support mechanism 3 includes a fixed support 31, a fixed rail 32, and a support wheel 33. The fixed rail 32 circumscribes the workbench to provide a rotation support point for limiting the cover 2. The top surface of the fixed rail 32 can be a V-shaped groove, and the bottom can be provided with a connecting frame to be connected to the external workbench. The connecting frame is not shown in the figure. The fixed rail 32 can be provided with a baffle on both sides to provide a limit.
[0061] The support mechanism 3 is provided with two groups of support mechanisms 3, which are respectively located on both sides of the cover 2.
[0062] The fixed support 31 is installed on the cover 2, and a plurality of reinforcing ribs are arranged on the fixed support 31 to ensure the stability of the connection between the fixed support 31 and the cover 2. The support wheel 33 is connected to the fixed support 31. The number of support wheels 33 can be arranged to be a plurality of support wheels 33, which are respectively located on both sides of the V-shaped groove to be connected to the fixed rail 32.
[0063] Specifically, the position of the fixed rail 32 is fixed, and the fixed rail 32 is connected to the external workbench. When the kiln body 1 is affected by high-temperature expansion, the expansion joint mechanism 4 is extended and retracted, and the cover 2 can be adjusted in position synchronously and retracted synchronously with the expansion joint mechanism 4. The cover 2 can be moved along the fixed rail 32 by the fixed support 31 and the support wheel 33 to adapt to different expansion degrees. At the same time, the expansion joint mechanism 4 and the cover 2 are limited to rotate with the kiln body 1.
[0064] In some embodiments, as shown in Figure 4 and Figure 6 The nitrogen conveying mechanism 6 includes a ring-shaped pipe 61 and a conveying hose 62. The ring-shaped pipe 61 is sleeved on the outer wall of the sealing disc 40 of the expansion joint mechanism 4, and a nitrogen conveying port 611 is arranged on the ring-shaped pipe 61. The ring-shaped pipe 61 can be connected to the sealing disc 40 by a connecting frame or can be externally connected to a support structure to ensure the stability of the position of the ring-shaped pipe 61. The support structure is not shown in the figure. The nitrogen conveying port 611 of the ring-shaped pipe 61 can be provided with a nitrogen connecting pipe, and the nitrogen connecting pipe extends a gas pump structure to provide nitrogen conveying. The nitrogen structure and the gas pump structure are not shown in the figure.
[0065] One end of the conveying hose 62 is in communication with the ring-shaped pipe 61, and the other end is in communication with the sealing disc 40. The conveying hose 62 is provided with a plurality of conveying hoses 62, which convey nitrogen to the sealing disc 40 from different positions to ensure uniform nitrogen conveying.
[0066] The embodiments of the present application are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, wherein the same parts are denoted by the same reference numerals. Therefore, any equivalent changes made on the structure, shape, and principle of the present application should be covered within the protection scope of the present application.
Claims
1. A kiln body temperature-based follow-up type packing seal structure, characterized by, The kiln body (1), the material cover (2), the supporting mechanism (3), the expansion joint mechanism (4), the pressing wheel mechanism (5) and the nitrogen conveying mechanism (6) are connected through the expansion joint mechanism (4); the supporting mechanism (3) is installed on the outer wall of the material cover (2) to limit the rotation of the material cover (2) and the expansion joint mechanism (4); the pressing wheel assembly is installed on the expansion joint mechanism (4) and tightly presses the connection point of the kiln body (1) and the expansion joint mechanism (4); the nitrogen conveying mechanism (6) is installed on the kiln body (1) and conveys nitrogen into the expansion joint mechanism (4) to isolate the inside and outside of the expansion joint mechanism (4).
2. A kiln body temperature based follow-up type filler sealing structure according to claim 1, characterized in that, One end of the material cover (2) is provided with a first connecting ring (21), the expansion joint mechanism (4) is sequentially provided with a second connecting ring (41), a third connecting ring (42), a fourth connecting ring (43) and a fifth connecting ring (44) from the end close to the material cover (2) to the end close to the kiln body (1); the first connecting ring (21) is in butt joint with the second connecting ring (41); one end of the kiln body (1) is provided with a sixth connecting ring (11), and the sixth connecting ring (11) is in butt joint with the fifth connecting ring (44).
3. A kiln body temperature based follow-up type filler sealing structure according to claim 2, characterized in that, The expansion joint mechanism (4) comprises a metal bellows (45), a first lead screw (46), a first nut (47), a first elastic part (48) and an inner side plate (49); the metal bellows (45) is connected between the second connecting ring (41) and the third connecting ring (42); the metal bellows (45) is connected with the inner side plate (49) inside and there is a spacing space between them; the first connecting ring (21), the second connecting ring (41), the third connecting ring (42) and the fourth connecting ring (43) are all provided with a through hole (211) corresponding; the first lead screw (46) is arranged in the through hole (211), and a plurality of first nuts (47) are screwed on the first lead screw (46); the first elastic part (48) is wound on the first lead screw (46), one end of which abuts against the first nut (47) and the other end of which abuts against the third connecting ring (42).
4. A kiln body temperature based follow-up type filler sealing structure according to claim 3, characterized in that, The through hole (211) is provided with a plurality of through holes along the circumferential direction of the first connecting ring (21), the second connecting ring (41), the third connecting ring (42) and the fourth connecting ring (43).
5. A kiln body temperature based follow-up type filler sealing structure according to claim 3, characterized in that, The expansion joint mechanism (4) further comprises a sealing disc (40), the two ends of the sealing disc (40) are connected with the fourth connecting ring (43) and the fifth connecting ring (44) respectively; the third connecting ring (42) is in butt joint with the fourth connecting ring (43), and the first lead screw (46) and the first nut (47) tightly connect the two; the fifth connecting ring (44) is in butt joint with the sixth connecting ring (11), and the fifth connecting ring (44) and the sixth connecting ring (11) are tightly connected through the pressing wheel mechanism (5).
6. A kiln body temperature based follow-up type filler sealing structure according to claim 5, characterized in that, The inner side plate (49) extends to the sealing disc (40), the nitrogen conveying mechanism (6) is connected with the sealing disc (40), and nitrogen is conveyed into the spacing space between the inner side plate (49) and the metal bellows (45) through the sealing disc (40).
7. A kiln body temperature based follow-up type filler sealing structure according to claim 2, characterized in that, The pressing wheel mechanism (5) comprises a fixed part (51), a pressing wheel part (52), a second lead screw (53), a second nut (54) and a second elastic part (55); the pressing wheel part (52) is connected with the fixed part (51), and the second lead screw (53) is installed on the fixed part (51); a mounting hole (441) is formed in the fifth connecting ring (44), the second lead screw (53) penetrates through the mounting hole (441), the second nut (54) is screwed with the second lead screw (53), and the second nut (54) is located on the side close to the fourth connecting ring (43); the second elastic part (55) is wound on the second lead screw (53), one end of the second elastic part (55) abuts against the second nut (54), and the other end abuts against the fifth connecting ring (44); the fixed part (51) and the pressing wheel part (52) are located on the side of the fifth connecting ring (44) close to the kiln body (1), and the pressing wheel part (52) abuts against the sixth connecting ring (11) under the action of the elastic force of the second elastic part (55).
8. A kiln body temperature based follow-up type filler sealing structure according to claim 7, characterized in that, The pressing wheel mechanism (5) is provided with a plurality of pressing wheel mechanisms, and is arranged along the circumferential direction of the fifth connecting ring (44) and the sixth connecting ring (11).
9. A kiln body temperature based follow-up type filler sealing structure according to claim 1, characterized in that, The supporting mechanism (3) comprises a fixed support (31), a fixed rail (32) and a supporting wheel (33); the fixed rail (32) is circumscribed with a workbench to provide a rotation supporting point for limiting the cover (2); the fixed support (31) is installed on the cover (2), the supporting wheel (33) is connected with the fixed support (31) and is slidingly connected with the fixed rail (32).
10. A kiln body temperature based follow-up type filler sealing structure according to claim 1, characterized in that, The nitrogen conveying mechanism (6) comprises a ring-shaped pipe (61) and a conveying hose (62); the ring-shaped pipe (61) is sleeved on the outer wall of the expansion joint mechanism (4), and a nitrogen conveying port (611) is formed in the ring-shaped pipe (61); one end of the conveying hose (62) is in communication with the ring-shaped pipe (61), and the other end is in communication with the expansion joint mechanism (4).