Sealing assembly and rotary kiln with same

Abstract

The utility model provides a sealing assembly and a rotary kiln with the sealing assembly, the sealing assembly comprises a slewing bearing structure, the slewing bearing structure comprises a first ring and a second ring, the first ring is rotatably arranged relative to the second ring, and the first ring is used for being connected with the outer wall of a barrel; the abutting part is flexibly connected with a cover body arranged outside the barrel in a covering mode, at least part of the abutting part and the first ring are oppositely arranged, a mounting gap is defined by the abutting part and the first ring, and the abutting part is adjustably arranged on the second ring so that at least part of the abutting part can be close to or away from the first ring; the sealing piece is arranged in the mounting gap, and at least part of the abutting piece abuts against the sealing piece to the first ring; wherein one of the first ring and the second ring is an inner ring of the slewing bearing structure, and the other one of the first ring and the second ring is an outer ring of the slewing bearing structure. According to the technical scheme, the technical problem that in the prior art, an end face mechanical sealing structure is poor in sealing effect can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical sealing structures, in particular to a sealing component and a rotary kiln having the same. Background Art

[0002] At present, one end of the inner drum of rotary kiln equipment is often connected to the feed and discharge pipes or the feed and discharge covers. When the inner drum rotates relative to the feed or discharge pipe, the connection between the two needs to remain sealed to prevent gas leakage in the drum.

[0003] However, due to the large size of such rotary equipment, it is inevitable that there will be jumping, swinging, and axial movement during the rotation of the equipment. In order to solve the dynamic sealing problem of such equipment, fish scale seals and end face mechanical seals are currently mainly used. Among them, fish scales cannot achieve complete sealing due to their own structural characteristics, and the end face mechanical seal structure in the prior art has a complex structure, poor sealing compensation, and difficult maintenance. The key components often suffer from severe wear, resulting in poor sealing effect and failure to achieve complete sealing. Utility Model Content

[0004] The main purpose of the utility model is to provide a sealing component and a rotary kiln having the same, so as to solve the technical problem of poor sealing effect of the end face mechanical sealing structure in the prior art.

[0005] In order to achieve the above object, according to one aspect of the utility model, a sealing assembly is provided, comprising:

[0006] The slewing support structure comprises a first circle and a second circle, wherein the first circle is rotatably arranged relative to the second circle, and the first circle is used to be connected to the outer wall of the cylinder;

[0007] The abutment member is flexibly connected to the cover body disposed outside the cylinder, at least a portion of the abutment member is disposed opposite to the first circle and encloses a mounting gap, and the position of the abutment member is adjustably disposed on the second circle so that at least a portion of the abutment member is close to or away from the first circle;

[0008] A sealing member is disposed in the installation gap, and at least a portion of the abutment member abuts the sealing member at the first circle;

[0009] Among them, one of the first ring and the second ring is the inner ring of the slewing support structure, and the other of the first ring and the second ring is the outer ring of the slewing support structure.

[0010] Further, at least a portion of the abutment member is provided with a first mounting groove, and the first mounting groove and the end surface of the first ring form a mounting gap; or,

[0011] A second mounting groove is provided on the first ring, and the second mounting groove and at least part of the abutment member enclose a mounting gap; or,

[0012] A first mounting groove is arranged on at least a portion of the abutment member, a second mounting groove is arranged on the first circle, and the first mounting groove is communicated with the second mounting groove to form a mounting gap.

[0013] Furthermore, the seal has a cutout, there are at least two seals, at least two seals are arranged in the installation gap, and the cutouts of the at least two seals are arranged at intervals.

[0014] Furthermore, the sealing assembly also includes:

[0015] A guide rod, the guide rod extends along a preset direction, the guide rod is connected to the second ring, at least a portion of the guide rod extends out of the second ring, and the abutment piece is sleeved on at least a portion of the guide rod;

[0016] The adjusting member is arranged on a side of the abutting member away from the second ring. The adjusting member is adjustably arranged on the guide rod along the extending direction of the guide rod. The adjusting member is used to abut against the abutting member.

[0017] Furthermore, the sealing assembly also includes an elastic member, and the elastic member is sleeved on the guide rod;

[0018] The elastic member is disposed between the adjusting member and the abutting member, and the adjusting member abuts against the abutting member through the elastic member; or,

[0019] The elastic member is arranged between the adjusting member and the second ring, and the adjusting member abuts against the second ring through the elastic member.

[0020] Further, a positioning groove is provided on the abutting member, and the end of the elastic member abuts against the bottom groove wall of the positioning groove; and / or,

[0021] The adjusting piece is sleeved on the guide rod, and the adjusting piece is matched with the thread of the guide rod.

[0022] Furthermore, the sealing assembly also includes:

[0023] A connecting piece is fixedly connected to the outer wall of the cylinder, the first circle is fixed on the connecting piece, and the first circle is spaced apart from the cylinder;

[0024] The heat-insulating component is arranged at the gap between the first circle and the cylinder.

[0025] Further, the installation gap is an annular gap; and / or,

[0026] The seal is a packing; and / or,

[0027] The heat-insulating element is an annular structure.

[0028] According to another aspect of the utility model, there is provided a rotary kiln, comprising:

[0029] A cylinder and a cover, wherein the cylinder is rotatably arranged and the cover is arranged on the end of the cylinder;

[0030] The sealing assembly provided above is used to seal the gap between the cylinder body and the cover body.

[0031] Furthermore, the rotary kiln also includes:

[0032] A flexible connection structure, one end of which is connected to the cover body, and the other end of which is connected to the abutment member of the sealing assembly.

[0033] By applying the technical solution of the utility model, the sealing assembly can be stably connected to the cylinder body through the setting of the slewing support structure, and at the same time, the sealing member set in the installation gap can be pressed against and squeezed by the setting of the abutment member by adjusting the position of the abutment member relative to the second circle, so that the first circle and the abutment member are pressed against each other to achieve the sealing pressure required for sealing, so that the first circle and the sealing member are tightly sealed and fitted, thereby ensuring the sealing effect of the sealing assembly. In addition, since the abutment member is flexibly connected to the cover body outside the cylinder, when the cylinder body is displaced, the stable operation of the sealing assembly can be guaranteed. In addition, in this solution, the number of sealing members is set to at least two, and the sealing members are all placed in the same annular groove, and the sealing member installation notches are arranged in a staggered manner. In addition, in this solution, a guide rod, an adjusting member and an elastic member are also provided, and the elastic member is used to form a mutually attractive force between the abutment member and the slewing support structure, and the sealing surface of the sealing member is formed with a pre-tightening specific pressure through this force, thereby achieving a better sealing effect. Therefore, the technical problem of poor sealing effect of the end face mechanical sealing structure in the prior art can be solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0035] Figure 1 A partial structural schematic diagram of a rotary kiln provided according to the second embodiment of the utility model is shown;

[0036] Figure 2 Shows Figure 1 An enlarged structural schematic diagram of the sealing component in FIG.

[0037] Figure 3 A schematic structural diagram of a guide rod, an adjusting member and an elastic member provided according to the first embodiment of the utility model is shown.

[0038] The above drawings include the following reference numerals:

[0039] 10. Rotary support structure; 11. First circle; 12. Second circle; 20. Cylinder; 30. Abutment member; 40. Cover body; 50. Sealing member; 61. Guide rod; 62. Adjusting member; 63. Elastic member; 70. Connecting member; 80. Insulating member; 90. Flexible connecting structure. DETAILED DESCRIPTION

[0040] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0041] like Figures 1 to 3 As shown, the first embodiment of the utility model provides a sealing assembly, which includes a slewing support structure 10, an abutment member 30 and a sealing member 50. The slewing support structure 10 includes a first ring 11 and a second ring 12. The first ring 11 is rotatably arranged relative to the second ring 12, and the first ring 11 is used to connect with the outer wall of the cylinder 20. The abutment member 30 is flexibly connected to the cover body 40 covered outside the cylinder 20. At least part of the abutment member 30 is arranged opposite to the first ring 11 and encloses an installation gap. The position of the abutment member 30 is adjustable on the second ring 12 so that at least part of the abutment member 30 is close to or away from the first ring 11. The sealing member 50 is arranged in the installation gap, and at least part of the abutment member 30 abuts the sealing member 50 at the first ring 11. Among them, one of the first ring 11 and the second ring 12 is the inner ring of the slewing support structure 10, and the other of the first ring 11 and the second ring 12 is the outer ring of the slewing support structure 10.

[0042] The sealing assembly provided in this embodiment can stably connect the sealing assembly to the cylinder 20 by setting the slewing support structure 10, and can also abut and squeeze the sealing member 50 set in the installation gap by setting the abutment 30 and adjusting the position of the abutment 30 relative to the second circle 12, so that the first circle 11 and the abutment 30 are pressed against each other to achieve the sealing pressure required for sealing, so that the first circle 11 and the sealing member 50 are tightly sealed and fit, thereby ensuring the sealing effect of the sealing assembly. In addition, since the abutment 30 is flexibly connected to the cover body 40 outside the cylinder 20, when the cylinder 20 is displaced, the stable operation of the sealing assembly can be guaranteed. Therefore, the sealing assembly provided in this embodiment can solve the technical problem of poor sealing effect of the end face mechanical sealing structure in the prior art.

[0043] Specifically, the abutting member 30 is a flange member.

[0044] Specifically, the slewing support structure 10 is a component in which a first circle 11 and a second circle 12 are coaxial, and the first circle 11 and the second circle 12 can rotate relative to each other around the coaxial line and can simultaneously bear axial and radial forces. The slewing support structure 10 also includes rolling bodies. The first circle 11 and the second circle 12 are connected by rolling bodies to ensure axial and radial position accuracy and transmit force. The rolling bodies can be balls, rollers or bearings. The first circle 11 and the second circle 12 of the slewing support structure 10 are respectively provided with mounting holes for mounting the slewing support structure 10 and connecting the slewing support structure 10 with other structural components.

[0045] Specifically, at least a portion of the abutment member 30 is provided with a first mounting groove, and the first mounting groove and the end surface of the first ring 11 form a mounting gap. With such a structural arrangement, the sealing member 50 can be arranged in the mounting gap formed by the first mounting groove and the end surface of the first ring 11, and the end surface of the first ring 11 and the sealing member 50 fit each other to form a sealing surface, so that the sealing member 50 can seal the end surface, thereby further ensuring the sealing effect of the sealing assembly.

[0046] Specifically, the first ring 11 is provided with a second mounting groove, and the second mounting groove and at least part of the abutment member 30 form a mounting gap. With such a structural arrangement, the sealing member 50 can be arranged in the mounting gap formed by the second mounting groove and at least part of the abutment member 30, and at least part of the abutment member 30 and the sealing member 50 fit each other to form a sealing surface, so that the sealing member 50 can seal the end surface, thereby further ensuring the sealing effect of the sealing assembly.

[0047] Specifically, a first mounting groove is provided on at least part of the abutment member 30, a second mounting groove is provided on the first ring 11, and the first mounting groove is connected with the second mounting groove to form a mounting gap. With such a structural arrangement, the sealing member 50 can be arranged in the mounting gap formed by the first mounting groove and the second mounting groove, and the inner groove surface of the mounting groove and the sealing member 50 are attached to each other to form a sealing surface, so that the sealing member 50 can achieve sealing of the end surface, thereby further ensuring the sealing effect of the sealing assembly.

[0048] Specifically, both the first mounting groove and the second mounting groove are annular grooves. Specifically, there are multiple first mounting grooves, at least two seals 50 are arranged in at least one of the multiple first mounting grooves, and two adjacent seals 50 are arranged in close proximity. Specifically, there are multiple second mounting grooves, at least two seals 50 are arranged in at least one of the multiple second mounting grooves, and two adjacent seals 50 are arranged in close proximity. Specifically, the seal 50 has a cutout, there are at least two seals 50, at least two seals 50 are arranged in the mounting gap, and the cutouts of at least two seals 50 are arranged at intervals. With such a structural arrangement, at least two seals 50 can be arranged in the mounting gap, and the cutouts of the seals 50 are arranged in a staggered manner, so as to effectively solve the problem of leakage of the end face sealing single-filler single-gap structure from the cutout of the seal 50, thereby further ensuring the sealing effect of the sealing assembly.

[0049] In this embodiment, the sealing assembly further includes a guide rod 61 and an adjusting member 62. The guide rod 61 extends in a preset direction, is connected to the second ring 12, and at least a portion of the guide rod 61 extends out of the second ring 12. The abutment member 30 is sleeved on at least a portion of the guide rod 61. The adjusting member 62 is arranged on a side of the abutment member 30 away from the second ring 12. The adjusting member 62 is adjustably arranged on the guide rod 61 along the extending direction of the guide rod 61. The adjusting member 62 is used to abut against the abutment member 30. With such a structural arrangement, the abutment pressure of the abutment member 30 can be adjusted by adjusting the position of the adjusting member 62 on the guide rod 61, so that the abutment member 30 and the sealing member 50 can be pressed against each other to achieve the sealing pressure required for sealing. Such an arrangement improves the adjustability of the sealing assembly, and can be adjusted according to the sealing pressure required by different sealing members 50, so as to further ensure the sealing effect.

[0050] Specifically, the guide rod 61 is passed through the second ring 12 and fixedly connected to the second ring 12, so that the guide rod 61 is positioned by the second ring 12 to ensure that the setting position of the guide rod 61 is stable and not deformed.

[0051] Specifically, the sealing assembly also includes an elastic member 63, which is sleeved on the guide rod 61, and the elastic member 63 is arranged between the adjusting member 62 and the abutting member 30, and the adjusting member 62 abuts against the abutting member 30 through the elastic member 63. With such a structural arrangement, the structure is simple and easy to install, and the abutting pressure of the abutting member 30 can be adjusted by the elastic force of the elastic member 63, so that the abutting member 30 and the sealing member 50 have the required sealing pressure, thereby further ensuring the sealing effect. The elastic member 63 is used to form a mutually attractive force between the abutting member 30 and the slewing support structure 10, and this force is used to form a pre-tightening specific pressure on the sealing surface of the sealing member 50, thereby achieving a sealing effect.

[0052] Specifically, the sealing assembly further includes an elastic member 63, which is sleeved on the guide rod 61, and is disposed between the adjusting member 62 and the second ring 12, and the adjusting member 62 abuts against the second ring 12 through the elastic member 63. With such a structural arrangement, the structure is simple and easy to install, and the abutting pressure of the second ring 12 can be adjusted through the elastic force of the elastic member 63, so that the second ring 12 and the sealing member 50 have the required sealing pressure, thereby further ensuring the sealing effect. The elastic member 63 is used to form a mutually attractive force between the abutting member 30 and the slewing support structure 10, and this force is used to form a pre-tightening specific pressure on the sealing surface of the sealing member 50, thereby achieving a sealing effect.

[0053] Specifically, a positioning groove is provided on the abutting member 30, and the end of the elastic member 63 abuts against the bottom groove wall of the positioning groove. With such a structural setting, the elastic member 63 can be stably positioned at the positioning groove of the abutting member 30, avoiding the elastic member 63 from being misaligned during the adjustment of the adjusting member 62, thereby affecting the adjustment of the sealing pressure between the abutting member 30 and the sealing member 50, and further ensuring the stable adjustment of the sealing adjustment.

[0054] Specifically, the adjusting member 62 is sleeved on the guide rod 61, and the adjusting member 62 is threadedly matched with the guide rod 61. With such a structural setting, the structure is simple and easy to install, and the adjusting member 62 can be stably positioned on the guide rod 61 through the thread setting, which is also helpful for the position movement of the adjusting member 62 on the guide rod 61 during the adjustment process, thereby ensuring the smoothness of the adjustment operation.

[0055] In this embodiment, the sealing assembly further includes a connecting member 70 and a heat-insulating member 80, the connecting member 70 is fixedly connected to the outer wall of the cylinder 20, the first ring 11 is fixed on the connecting member 70, and the first ring 11 is spaced apart from the cylinder 20. The heat-insulating member 80 is arranged at the gap between the first ring 11 and the cylinder 20. With such a structural arrangement, the slewing support structure 10 and the cylinder 20 can be firmly connected through the connecting member 70, and at the same time, the heat conducted from the outer wall of the cylinder 20 is isolated through the heat-insulating member 80, so as to avoid the cylinder 20 from having an adverse effect on the sealing assembly, and further ensure the sealing stability of the sealing assembly.

[0056] Specifically, the installation gap is an annular gap. With such a structural arrangement, the sealing member 50 filled in the installation gap can better abut against and seal with the first ring 11, thereby further improving the sealing effect.

[0057] Specifically, there are at least two sealing members 50 , each of which is placed in the same annular groove, and the installation notches of each of the sealing members 50 are arranged in a staggered manner.

[0058] Specifically, the sealing member 50 is a packing. With such a configuration, the packing can be tightly filled in the installation gap, thereby ensuring a sealing effect.

[0059] Specifically, the sealing member 50 is a graphite packing.

[0060] Specifically, the heat preservation member 80 is an annular structure. With such a structural arrangement, the annular heat preservation member 80 can better match the shape of the outer wall of the cylinder and the sealing assembly, and the heat preservation member 80 is made of a heat preservation material, so that the heat preservation member 80 plays a better role in heat preservation and heat insulation.

[0061] Specifically, the connecting member 70 is a flange member.

[0062] The second embodiment of the present utility model further provides a rotary kiln, which includes a cylinder 20 and a cover 40, wherein the cylinder 20 is rotatably arranged and the cover 40 is arranged at the end of the cylinder 20. The rotary kiln also includes the sealing assembly provided above, which is used to seal the gap between the cylinder 20 and the cover 40. With such a structural arrangement, the gap between the cylinder 20 and the cover 40 can be sealed by the sealing assembly, thereby preventing gas leakage in the cylinder 20 and affecting production.

[0063] Specifically, the rotary kiln further includes a flexible connection structure 90, one end of which is connected to the cover body 40, and the other end of which is connected to the abutment member 30 of the sealing assembly. With such a structural arrangement, the flexible connection structure 90 can absorb the axial expansion and contraction of the cylinder 20 and the radial and end surface runout displacement, thereby ensuring that the movements of the remaining components are not affected by the movement of the cylinder 20, thereby further ensuring the stable operation of the overall sealing assembly.

[0064] Specifically, the flexible connection structure 90 is a bellows expansion joint.

[0065] Specifically, the rotary kiln also includes an anti-rotation assembly, which is fixedly mounted on a fixed component such as a base or a skid frame, and is used to prevent the second ring 12 and the remaining sealing components from rotating together with the first ring 11, so as to achieve the effect that the first ring 11 rotates with the cylinder body, and the second ring 12 and the remaining sealing components do not rotate. The second ring 12 together with the remaining sealing components of the sealing assembly are flexibly connected to the anti-rotation assembly.

[0066] From the above description, it can be seen that the above embodiments of the utility model achieve the following technical effects:

[0067] (1) The whole set of sealing components is divided into two parts: the sealing part and the compensation part. Each part performs its own function and does not affect each other during work. On the one hand, it ensures the sealing effect, and on the other hand, it realizes good compensation performance between the inner furnace drum and the feed / discharge pipes, shields, etc.;

[0068] (2) A slewing bearing structure is applied in the sealing structure to connect the seal mounting components and the seal gland to ensure that the seal is not biased, ensure the sealing effect of the seal, and increase the service life of the seal;

[0069] (3) A new sealing packing arrangement method is adopted, where two or more seals are arranged in one installation gap, and the seal cutouts are arranged in a staggered manner, so as to effectively solve the problem of leakage from the seal cutout in the single-filler single-gap structure;

[0070] (4) Fill the gap between the seal and the outer wall of the cylinder with insulation material to reduce the seal temperature, reduce wear and increase the service life of the seal element;

[0071] To sum up, this patent can effectively solve the problems of complex structure, poor compensation performance, poor stability, poor sealing effect and low life of existing end face mechanical seals through the implementation of the above methods.

[0072] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0073] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the application. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0074] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0075] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0076] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0077] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A sealing assembly, characterized in that: include: The slewing support structure (10) comprises a first circle (11) and a second circle (12), wherein the first circle (11) is rotatably arranged relative to the second circle (12), and the first circle (11) is used to be connected to the outer wall of the cylinder (20); an abutment member (30) flexibly connected to a cover body (40) disposed outside the cylinder body (20); at least a portion of the abutment member (30) is disposed opposite to the first circle (11) and forms a mounting gap; the position of the abutment member (30) is adjustably disposed on the second circle (12) so that at least a portion of the abutment member (30) is close to or away from the first circle (11); A sealing member (50) is arranged in the installation gap, and at least a portion of the abutment member (30) abuts the sealing member (50) against the first ring (11); One of the first ring (11) and the second ring (12) is the inner ring of the slewing support structure (10), and the other of the first ring (11) and the second ring (12) is the outer ring of the slewing support structure (10).

2. The sealing assembly according to claim 1, characterized in that: A first installation groove is provided on at least a portion of the abutment member (30), and the first installation groove and the end surface of the first ring (11) form the installation gap; or, The first ring (11) is provided with a second installation groove, and the second installation groove and at least a part of the abutment member (30) enclose the installation gap; or, A first mounting groove is provided on at least a portion of the abutment member (30), and a second mounting groove is provided on the first ring (11); the first mounting groove is connected to the second mounting groove and encloses the mounting gap.

3. The sealing assembly according to claim 1, characterized in that: The sealing member (50) has a cutout, there are at least two sealing members (50), at least two of the sealing members (50) are arranged in the installation gap, and the cutouts of at least two of the sealing members (50) are arranged at intervals.

4. The sealing assembly according to claim 1, characterized in that: The sealing assembly further comprises: A guide rod (61), the guide rod (61) extending in a preset direction, the guide rod (61) being connected to the second ring (12), at least a portion of the guide rod (61) extending out of the second ring (12), and the abutment member (30) being sleeved on at least a portion of the guide rod (61); An adjusting member (62) is arranged on a side of the abutting member (30) away from the second ring (12); the adjusting member (62) is arranged on the guide rod (61) in an adjustable manner along the extension direction of the guide rod (61); and the adjusting member (62) is used to abut against the abutting member (30).

5. The sealing assembly according to claim 4, characterized in that: The sealing assembly further comprises an elastic member (63), wherein the elastic member (63) is sleeved on the guide rod (61); Wherein, the elastic member (63) is arranged between the adjusting member (62) and the abutting member (30), and the adjusting member (62) abuts against the abutting member (30) through the elastic member (63); or, The elastic member (63) is arranged between the adjusting member (62) and the second ring (12), and the adjusting member (62) is in contact with the second ring (12) through the elastic member (63).

6. The sealing assembly according to claim 5, characterized in that The abutment member (30) is provided with a positioning groove, and the end of the elastic member (63) abuts against the bottom groove wall of the positioning groove; and / or, The adjusting member (62) is sleeved on the guide rod (61), and the adjusting member (62) is threadably matched with the guide rod (61).

7. The sealing assembly according to claim 1, characterized in that: The sealing assembly further comprises: A connecting member (70) is fixedly connected to the outer wall of the cylinder (20), the first ring (11) is fixed on the connecting member (70), and the first ring (11) is spaced apart from the cylinder (20); A heat-insulating member (80) is arranged at a gap between the first ring (11) and the cylinder (20).

8. The sealing assembly according to claim 7, characterized in that: The installation gap is an annular gap; and / or, The sealing element (50) is a packing; and / or, The heat-insulating component (80) is an annular structure.

9. A rotary kiln, characterized in that: include: A cylinder (20) and a cover (40), wherein the cylinder (20) is rotatably arranged, and the cover (40) is arranged to cover the end of the cylinder (20); The sealing assembly according to any one of claims 1 to 8 is used to seal the gap between the cylinder (20) and the cover (40).

10. The rotary kiln according to claim 9, characterized in that: The rotary kiln also includes: A flexible connection structure (90), one end of which is connected to the cover body (40), and the other end of which is connected to the abutment member (30) of the sealing assembly.

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