CN219589412U - Rotary kiln - Google Patents

Abstract

The utility model provides a rotary kiln, comprising: the cylinder body and the end supporting structure are rotatably arranged, the end supporting structure is arranged at the end part of the cylinder body, and the end supporting structure is fixedly arranged; one of an inner ring of the slewing bearing structure and an outer ring of the slewing bearing structure is connected with the cylinder body, and the other of the inner ring of the slewing bearing structure and the inner ring of the slewing bearing structure is connected with the end supporting structure; and the sealing assembly is arranged on the end supporting structure and comprises a sealing part and an abutting part, the sealing part is arranged on the slewing bearing structure, and the abutting part abuts against one end of the sealing part so as to enable the other end of the sealing part to be attached to at least part of the slewing bearing structure under the abutting action of the abutting part. By the technical scheme provided by the utility model, the technical problem of poor sealing effect of the rotary kiln in the prior art can be solved.

Description

Rotary kiln

Technical Field

The utility model relates to the technical field of rotary kilns, in particular to a rotary kiln.

Background

At present, rotary drum formula rotary kiln among the prior art is owing to not having the blade extrusion, and the material can pile up in the rotary drum, and at rotary drum rotation in-process, can realize piling up the material and spill, can effectively solve positive and negative pole piece and pile up discharge phenomenon when retrieving the battery, reduces dangerous emergence. However, the conventional rotary kiln has a complex structure, particularly a supporting structure, the supporting structure consists of a riding wheel, a rolling ring, a baffle wheel and the like, the structures are mutually independent, the running precision of equipment is low, the conditions of up-and-down jolt, non-directional deflection and the like exist when a cylinder rotates, the tightness of the cylinder is poor, leakage cannot be effectively controlled, and great risks can be generated when oxygen enters the cylinder.

However, conventional rotary kiln seals mostly adopt scale seals, and although deflection or displacement in all directions can be effectively compensated, the leakage amount is larger, and the control of the oxygen content of equipment cannot be met. However, the existing mechanical seal on the market has relatively good sealing performance, but the compensation structure is complex, and cannot well cope with various non-directional deflection, movement and other conditions of the cylinder body, so that good sealing compensation cannot be achieved, and sealing stability is ensured.

Disclosure of Invention

The utility model mainly aims to provide a rotary kiln to solve the technical problem that a rotary kiln in the prior art is poor in sealing effect.

In order to achieve the above object, the present utility model provides a rotary kiln comprising:

the cylinder body and the end supporting structure are rotatably arranged, the end supporting structure is arranged at the end part of the cylinder body, and the end supporting structure is fixedly arranged;

one of an inner ring of the slewing bearing structure and an outer ring of the slewing bearing structure is connected with the cylinder body, and the other of the inner ring of the slewing bearing structure and the inner ring of the slewing bearing structure is connected with the end supporting structure;

and the sealing assembly is arranged on the end supporting structure and comprises a sealing part and an abutting part, the sealing part is arranged on the slewing bearing structure, and the abutting part abuts against one end of the sealing part so as to enable the other end of the sealing part to be attached to at least part of the slewing bearing structure under the abutting action of the abutting part.

Further, the abutment portion includes:

the end part of the abutting rod abuts against one end of the sealing part, and a limiting step is arranged on the abutting rod;

the elastic piece is sleeved on the abutting rod, and one end of the elastic piece abuts against the limiting step;

the abutting sleeve is sleeved at one end of the abutting rod far away from the sealing part, the abutting sleeve protrudes out of the side wall of the abutting rod, and the other end of the elastic piece abuts against the abutting sleeve.

Further, the other end of the sealing portion is adapted to be bonded to the inner ring of the slewing bearing structure.

Further, the slewing bearing structure comprises a first slewing bearing, the end support structure comprises a kiln head support structure, and the kiln head support structure comprises:

the first support base and the first support plate group are arranged on the first support base, the first support plate group is connected with the outer ring of the first slewing bearing, and the cylinder body is connected with the inner ring of the first slewing bearing.

Further, the rotary kiln further comprises a feed tube group comprising:

a feeding pipe which is communicated with the cylinder;

the sealing plate group is connected with the first supporting plate group, and at least part of the sealing plate group and the cylinder body enclose a sealing cavity.

Further, the seal assembly includes a first seal assembly, and the seal plate group includes:

the first annular plate is connected with the first supporting plate group, the first annular plate is provided with a first installation through hole, the first annular plate and the first slewing bearing are oppositely arranged, and the first sealing assembly is installed in the first installation through hole.

Further, the seal plate group further includes:

the connecting sleeve is sleeved on the feeding pipe, one end of the connecting sleeve is connected with the cylinder, and the other end of the connecting sleeve is connected with the first annular plate;

a first connection end plate disposed between the first annular plate and the feed tube;

and the second connecting end plate is arranged between the connecting sleeve and the feeding pipe, so that the connecting sleeve, the first annular plate, the first connecting end plate and the second connecting end plate enclose a sealed cavity.

Further, the feed tube set further comprises:

and the air inlet pipeline is communicated with the sealing cavity and is used for introducing sealing protective gas.

Further, the slewing bearing structure includes the second slewing bearing, and the barrel is connected with the outer lane of second slewing bearing, and seal assembly includes the second seal assembly, and end support structure includes kiln tail bearing structure, and kiln tail bearing structure includes:

and the supporting cover is connected with the inner ring of the second slewing bearing, and the supporting cover and the second sealing assembly are respectively arranged at two ends of the second slewing bearing.

Further, the rotary kiln further comprises:

the second annular plate is connected with the cylinder body, the second annular plate is arranged at one end of the second slewing bearing far away from the supporting cover, a second mounting through hole is formed in the second annular plate, and the second sealing assembly is mounted in the second mounting through hole; and/or the number of the groups of groups,

the guide assembly comprises a guide rail and a guide block, the guide rail extends along the preset direction, the guide block is movably arranged on the guide rail, one of the guide block and the guide rail is connected with the support cover, and the other of the guide block and the guide rail is connected with the inner ring of the second slewing bearing.

By applying the technical scheme of the utility model, the abutting part can enable the sealing part to be stably attached and sealed with at least part of the slewing bearing structure, and the abutting part can adaptively change according to the change of the cylinder body, so that the sealing part can be stably abutted on the slewing bearing structure through the abutting part, the loosening condition of the sealing caused by the rotation of the cylinder body can not occur, and the sealing reliability is effectively ensured.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

fig. 1 shows a schematic structural view of a rotary kiln according to an embodiment of the present utility model;

fig. 2 shows a schematic diagram of a kiln head part provided according to an embodiment of the utility model;

FIG. 3 shows an enlarged schematic view of the structure at A provided in accordance with an embodiment of the present utility model;

FIG. 4 shows a schematic diagram of the structure of a kiln tail portion provided in accordance with an embodiment of the utility model;

FIG. 5 shows an enlarged schematic view of the structure at B provided in accordance with an embodiment of the present utility model;

fig. 6 shows a partial schematic structure of a seal assembly provided according to an embodiment of the present utility model.

Wherein the above figures include the following reference numerals:

10. a cylinder; 11. a heating chamber; 12. a bottom sledge; 13. a front end flange;

20. an end support structure; 21. a kiln head supporting structure; 211. a first support base; 212. a first support plate group; 213. a support ring; 22. a kiln tail supporting structure; 221. a support cover; 2211. a slewing bearing fixing flange;

30. a slewing bearing structure; 31. a first slewing bearing; 32. a second slewing bearing;

40. a seal assembly; 41. a sealing part; 42. an abutting portion; 421. a butt joint rod; 4211. a limit step; 422. an elastic member; 423. an abutting sleeve; 43. a first seal assembly; 44. a second seal assembly;

50. a feed tube group; 51. a feed pipe; 52. a seal plate group; 521. a first annular plate; 5211. a first mounting through hole; 5212. a first connection end plate; 5213. a second connecting end plate; 522. a connection sleeve; 53. a first air intake line;

60. a second annular plate; 61. a second mounting through hole;

70. a guide assembly; 71. a guide rail; 72. a guide block;

80. a sprocket;

90. a second inlet line.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

As shown in fig. 1 to 6, an embodiment of the present utility model provides a rotary kiln, the rotary kiln including: the rotary support device comprises a barrel 10, an end support structure 20, a rotary support structure 30 and a sealing assembly 40, wherein the barrel 10 is rotatably arranged, the end support structure 20 is arranged at the end of the barrel 10, and the end support structure 20 is fixedly arranged. One of the inner ring of the slewing bearing structure 30 and the outer ring of the slewing bearing structure 30 is connected with the cylinder 10, and the other of the inner ring of the slewing bearing structure 30 and the inner ring of the slewing bearing structure 30 is connected with the end support structure 20. The seal assembly 40 is mounted on the end support structure 20, the seal assembly 40 includes a seal portion 41 and an abutment portion 42, the seal portion 41 is provided on the slewing bearing structure 30, and the abutment portion 42 abuts against one end of the seal portion 41 to bring the other end of the seal portion 41 into abutment with at least part of the slewing bearing structure 30 under the abutting action of the abutment portion 42.

With the rotary kiln provided in this embodiment, the sealing portion 41 can be stably bonded and sealed to at least a portion of the slewing bearing structure 30 by the abutment portion 42, and the abutment portion 42 can adaptively change according to the change of the cylinder 10, so that the sealing portion 41 can be stably abutted to the slewing bearing structure 30 by the abutment portion 42, and the sealing is not loosened due to the rotation of the cylinder 10. Therefore, the rotary kiln provided by the embodiment can solve the technical problem that the sealing effect of the rotary kiln in the prior art is poor.

In the present embodiment, the abutting portion 42 includes an abutting rod 421, an elastic member 422, and an abutting sleeve 423, an end of the abutting rod 421 abuts against one end of the sealing portion 41, and a limiting step 4211 is provided on the abutting rod 421. The elastic member 422 is sleeved on the abutting rod 421, and one end of the elastic member 422 abuts against the limiting step 4211. The abutting sleeve 423 is sleeved at one end of the abutting rod 421 away from the sealing part 41, the abutting sleeve 423 protrudes out of the side wall of the abutting rod 421, and the other end of the elastic piece 422 abuts against the abutting sleeve 423. With such an arrangement, the seal portion 41 can be pressed against the slewing bearing structure 30 by the elastic force of the abutting portion 42, so that the sealing effect of the seal portion 41 can be enhanced, and the amount of leakage can be reduced to some extent by the arrangement of the abutting sleeve 423, thereby improving the sealing effect of the seal assembly 40.

Specifically, the other end of the seal portion 41 is used to attach to the inner ring of the slewing bearing structure 30. This facilitates sealing of the interior of the slewing bearing structure 30 by the seal 41, and improves the sealing performance of the rotary kiln assembly.

In the present embodiment, the slewing bearing structure 30 includes a first slewing bearing 31, the end support structure 20 includes a kiln head support structure 21, and the kiln head support structure 21 includes: the first support base 211 and the first support plate group 212, the first support plate group 212 sets up on first support base 211, and first support plate group 212 is connected with the outer lane of first slewing bearing 31, and barrel 10 is connected with the inner circle of first slewing bearing 31. By adopting the arrangement, the support and installation space can be provided for the rotary kiln assembly, and the arrangement of the kiln head support structure 21 can improve the operation stability of the rotary kiln assembly to a certain extent.

Specifically, the rotary kiln further includes a feed tube set 50, the feed tube set 50 including: a feed pipe 51 and a sealing plate group 52, the feed pipe 51 being in communication with the cartridge 10. The seal plate set 52 is connected to the first support plate set 212, and at least a portion of the seal plate set 52 encloses a seal cavity with the cylinder 10. The arrangement of the feeding pipe group 50 can facilitate feeding, and the sealing plate group 52 can form a sealing structure at the feeding position, so that the internal and external gases can be primarily isolated, and the sealing effect is improved.

In the present embodiment, the seal assembly 40 includes the first seal assembly 43, the seal plate group 52 includes the first annular plate 521, the first annular plate 521 is connected to the first support plate group 212, the first annular plate 521 is provided with the first mounting through hole 5211, the first annular plate 521 is disposed opposite to the first slewing bearing 31, and the first seal assembly 43 is mounted in the first mounting through hole 5211. By such arrangement, leakage at the kiln head can be reduced by the cooperation between the first seal assembly 43 and the first annular plate 521, and thus the sealability of the rotary kiln can be improved.

It should be noted that, in this embodiment, there are two seal assemblies 40, one seal assembly 40 is installed at the kiln head to form a first seal assembly 43, and the other seal assembly 40 is installed at the kiln tail to form a second seal assembly 44.

Specifically, the sealing plate group 52 further includes a connection sleeve 522, a first connection end plate 5212, and a second connection end plate 5213, which are sleeved on the feed pipe 51, one end of the connection sleeve is connected to the cylinder 10, and the other end of the connection sleeve is connected to the first annular plate 521. The first connection end plate 5212 is disposed between the first annular plate 521 and the feed pipe 51. A second connection end plate 5213 is disposed between the connection sleeve 522 and the feed tube 51 such that the connection sleeve 522, the first annular plate 521, the first connection end plate 5212 and the second connection end plate 5213 enclose a sealed cavity. The sealing cavity can promote the airtight nature of closing plate group 52, can be as far as with the inside space of closing plate group 52 with the external world isolated, further promote sealing performance, better avoid combustion-supporting gas such as oxygen to get into inside closing plate group 52 to avoid causing dangerous conditions such as conflagration.

In the present embodiment, the feeding tube set 50 further includes a first air inlet line 53, the first air inlet line 53 being in communication with the sealed cavity, the first air inlet line 53 being for introducing a sealed shielding gas. The protection gas can be nitrogen, and the protection gas is introduced to isolate the materials inside the rotary kiln from oxygen as much as possible, so that explosion can be avoided, and the safety of the rotary kiln during operation is further enhanced. In addition, the protective gas layer can be formed at the feeding part, so that the condition that external gas enters from the feeding part can be reduced as much as possible, and the tightness of the rotary kiln can be further improved.

Specifically, the slewing bearing structure 30 comprises a second slewing bearing 32, the cylinder 10 is connected with the outer ring of the second slewing bearing 32, the sealing assembly 40 comprises a second sealing assembly 44, the end supporting structure 20 comprises a kiln tail supporting structure 22, the kiln tail supporting structure 22 comprises a supporting cover 221, the supporting cover 221 and the second sealing assembly 44 are respectively arranged at two ends of the second slewing bearing 32, and the supporting cover 221 is connected with the inner ring of the second slewing bearing 32. With such an arrangement, the support can be provided at the kiln tail of the rotary kiln, and the hood structure of the support hood 221 can reduce the fit clearance between the components as much as possible compared with the conventional mechanical connection structure, and under the action of the second seal assembly 44, the tightness at both ends of the second slewing bearing 32 can be jointly improved, so that the tightness of the rotary kiln is improved.

In this embodiment, the rotary kiln further includes a second annular plate 60, the second annular plate 60 is connected to the cylinder 10, the second annular plate 60 is disposed at an end of the second slewing bearing 32 away from the supporting cover 221, a second mounting through hole 61 is provided in the second annular plate 60, and the second seal assembly 44 is mounted in the second mounting through hole 61. With such an arrangement, the second annular plate 60 can provide a certain supporting effect for the outer ring of the second slewing bearing 32, and meanwhile, the second annular plate 60 can also form a further seal for the tail of the cylinder 10, so that the gas leakage caused by the fit clearance in the structure can be further reduced under the effect of filling the clearance by the second sealing assembly 44.

Specifically, the rotary kiln further includes a guide assembly 70, the guide assembly 70 including a guide rail 71 extending in a preset direction and a guide block 72, the guide block 72 being movably disposed on the guide rail 71, one of the guide block 72 and the guide rail 71 being connected to the support housing 221, and the other of the guide block 72 and the guide rail 71 being connected to the inner ring of the second slewing bearing 32. The provision of the guide assembly 70 facilitates the separation of the inner race of the second slewing bearing 32, thereby facilitating the repair of the components of the second slewing bearing 32 and the subsequent replacement of the second seal assembly 44.

In this embodiment, the rotary kiln comprises a kiln head supporting structure 21, a cylinder 10, a kiln tail supporting structure 22, a heating chamber 11 and a bottom skid 12, wherein the kiln head supporting structure 21 comprises a feeding pipe group 50, the kiln head supporting structure 21, a first supporting base 211, a first slewing bearing 31, a sprocket 80, sealing packing (corresponding to a sealing part 41), a sealing assembly 40 and a first air inlet pipeline 53. The feed tube set 50 includes a feed tube 51, and the feed tube 51 and a sealing stationary ring (corresponding to a first annular plate 521) are welded together as a unit by a connecting sleeve 522, a second connecting end plate 5213 and a first connecting end plate 5212. The kiln head supporting structure 21 is formed by welding a supporting ring 213, a first supporting plate group 212 and a first supporting base 211, the feeding pipe group 50 and the kiln head supporting structure 21 are fastened by screws, and the kiln head supporting structure 21 is connected with the outer ring of the first slewing bearing 31 by screws. The kiln head supporting structure 21 is fixed to the bottom sledge 12 through the first supporting base 211, the part of the structure is a fixed part after being installed, the inner ring of the first slewing bearing 31 is fixed with the chain wheel 80 through bolts, and the chain wheel 80 is fixed with the front end flange 13 of the barrel 10 through bolts, so that the barrel 10, the chain wheel 80 and the inner ring of the first slewing bearing 31 are connected into a whole. The sprocket 80 is driven to rotate by an external chain, so as to drive the inner ring of the first slewing bearing 31 and the cylinder 10 to rotate, thereby realizing the rotation function of the cylinder 10, and fully utilizing the high bearing capacity of the slewing bearing and the rotation function of the inner ring and the outer ring, thereby realizing the support of the front end of the cylinder 10 and the rotation function of the cylinder 10.

In order to realize that the rotary kiln cylinder body keeps sealing performance with the outside in the rotating process, a sealing structure is integrated, and the specific implementation mode is as follows: the sealing filler is arranged in the sealing groove of the sealing static ring as a main element of the seal, the outer side surface of the sealing filler is directly contacted with the non-installation side surface of the inner ring of the first slewing bearing 31, the sealing filler is fixed, the inner ring of the first slewing bearing 31 rotates, and the sealing filler and the inner ring form a sealing friction pair through surface-to-surface contact, so that the sealing performance between the cylinder 10 and the kiln head supporting structure 21 is realized. The sealing static ring is provided with the sealing component 40 opposite to the first mounting through hole 5211, and is used for pressing and attaching the sealing filler to the contact surface of the inner ring of the first slewing bearing 31 to realize compensation after abrasion of the sealing filler, high precision of the slewing bearing and lower surface roughness after surface machining are fully utilized, the side surface of the slewing bearing is directly utilized as the contact surface, the structure is simplified, the coaxiality and the contact precision of the friction pair are ensured, and good sealing performance is ensured. In order to ensure reliable sealing, a first air inlet pipeline 53 is further arranged on the sealing stationary ring, and nitrogen is introduced into a cavity formed between the inner ring of the first slewing bearing 31 and the connecting sleeve 522 of the feeding end and the sealing stationary ring through the first air inlet pipeline 53 to form a nitrogen layer, so that the medium gas in the cylinder 10 is prevented from contacting with the sealing surface, and the functions of blocking and diluting can be achieved in advance.

The kiln tail support structure 22 comprises a support hood 221, a second slewing bearing 32, a guide assembly 70, a sealing assembly 40 and sealing packing, wherein the support hood 221 comprises a kiln tail hood body, a slewing bearing fixing flange 2211 and a second air inlet pipeline 90. The kiln tail hood body, the slewing bearing fixing flange 2211 and the second air inlet pipeline 90 are welded together to form a whole, and the whole is used as a main supporting part of the kiln tail supporting structure. The slewing bearing fixing flange 2211 on the supporting cover 221 is fixed with the inner ring of the second slewing bearing 32, the outer ring of the second slewing bearing 32 is fixed with the sealing moving ring (corresponding to the second annular plate 60) on the cylinder 10 by bolts, the sealing moving ring is welded on the cylinder 10, the sealing moving ring is integrated with the cylinder 10, at the moment, the sealing moving ring and the outer ring of the second slewing bearing 32 are driven to rotate when the cylinder 10 rotates, and the supporting cover 221 is not rotated after being connected with the inner ring of the second slewing bearing 32, so that the supporting effect of the supporting cover 221 on the cylinder 10 is realized through the slewing bearing, and meanwhile, the rotating operation of the cylinder 10 is not influenced. The sealing packing is arranged in the groove of the sealing movable ring, the outer end face is directly contacted with the non-mounting face of the inner ring of the second slewing bearing 32 to form a sealing friction pair, sealing performance is achieved, the sealing movable ring is also provided with a sealing assembly 40, the sealing packing is compressed, the friction face of the sealing packing and the friction face of the inner ring of the second slewing bearing 32 are compressed in an adjustable mode, compensation after abrasion of the sealing packing is achieved, high precision of the slewing bearing and lower surface roughness after surface machining are fully utilized, the side face of the slewing bearing is directly utilized as a contact face, the structure is simplified, coaxiality and contact precision of the friction pair are guaranteed, and good sealing performance is guaranteed.

In order to ensure reliable sealing, the second air inlet pipeline 90 is welded on the supporting cover 221, and nitrogen is introduced into the cavity between the inner side of the inner ring of the cylinder 10 and the second slewing bearing 32 and between the inner side of the slewing bearing fixing flange 2211 on the supporting cover 221 through the second air inlet pipeline 90 to form a nitrogen layer, so that the medium gas in the cylinder 10 and the supporting cover 221 is prevented from contacting with the sealing surface, and the blocking and dilution effects can be achieved in advance.

In this embodiment, the base of the supporting cover 221 is connected to the guiding assembly 70, and the bottom surface of the guiding assembly 70 is fixed to the bottom sled 12. The guide assembly 70 has the function of supporting the supporting cover 221 and the cylinder 10 supported on the supporting cover 221, and has the function of a guide rail slideway when the cylinder 10 is heated and has axial extension to drive the supporting cover 221 to move, and has the function of moving the supporting cover 221 and the second slewing bearing 32 to the right integrally when the sealing filler needs to be replaced, so that the sealing filler can be replaced by leaving a space when the sealing ring on the cylinder 10 is separated.

From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects: the sealing effect is stable, the structure is simple, and the production and the manufacturing are convenient.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. A rotary kiln, comprising:

a cylinder (10) and an end support structure (20), wherein the cylinder (10) is rotatably arranged, the end support structure (20) is arranged at the end of the cylinder (10), and the end support structure (20) is fixedly arranged;

a slewing bearing structure (30), wherein one of an inner ring of the slewing bearing structure (30) and an outer ring of the slewing bearing structure (30) is connected with the cylinder (10), and the other of the inner ring of the slewing bearing structure (30) and the outer ring of the slewing bearing structure (30) is connected with the end supporting structure (20);

seal assembly (40) install on tip bearing structure (20), seal assembly (40) include sealing portion (41) and butt portion (42), sealing portion (41) set up on slewing bearing structure (30), butt portion (42) butt is in one end of sealing portion (41), so that under the butt effect of butt portion (42) the other end of sealing portion (41) with at least part laminating of slewing bearing structure (30).

2. The rotary kiln according to claim 1, characterized in that the abutment (42) comprises:

a supporting rod (421), wherein the end part of the supporting rod (421) is supported against one end of the sealing part (41), and a limiting step (4211) is arranged on the supporting rod (421);

an elastic member (422) sleeved on the abutting rod (421), wherein one end of the elastic member (422) abuts against the limiting step (4211);

the abutting sleeve (423) is sleeved at one end of the abutting rod (421) away from the sealing part (41), the abutting sleeve (423) protrudes out of the side wall of the abutting rod (421), and the other end of the elastic piece (422) abuts against the abutting sleeve (423).

3. Rotary kiln according to claim 1, characterized in that the other end of the sealing portion (41) is intended to be in abutment with the inner ring of the slewing bearing structure (30).

4. The rotary kiln according to claim 1, characterized in that the slewing bearing structure (30) comprises a first slewing bearing (31), the end support structure (20) comprises a kiln head support structure (21), the kiln head support structure (21) comprising:

the device comprises a first support base (211) and a first support plate group (212), wherein the first support plate group (212) is arranged on the first support base (211), the first support plate group (212) is connected with the outer ring of the first slewing bearing (31), and the cylinder body (10) is connected with the inner ring of the first slewing bearing (31).

5. The rotary kiln according to claim 4, characterized in that the rotary kiln further comprises a feed tube set (50), the feed tube set (50) comprising:

-a feed pipe (51), the feed pipe (51) being in communication with the cartridge (10);

and the sealing plate group (52) is connected with the first supporting plate group (212), and at least part of the sealing plate group (52) and the cylinder body (10) enclose a sealing cavity.

6. The rotary kiln according to claim 5, characterized in that the seal assembly (40) comprises a first seal assembly (43), the seal plate pack (52) comprising:

the first annular plate (521), first annular plate (521) with first backup pad group (212) are connected, be provided with first installation through-hole (5211) on first annular plate (521), first annular plate (521) with first slewing bearing (31) set up relatively, first seal assembly (43) are installed in first installation through-hole (5211).

7. The rotary kiln according to claim 6, characterized in that the sealing plate set (52) further comprises:

the connecting sleeve (522) is sleeved on the feeding pipe (51), one end of the connecting sleeve (522) is connected with the cylinder body (10), and the other end of the connecting sleeve (522) is connected with the first annular plate (521);

a first connection end plate (5212) disposed between the first annular plate (521) and the feed pipe (51);

the second connecting end plate (5213) is arranged between the connecting sleeve (522) and the feeding pipe (51), so that the connecting sleeve (522), the first annular plate (521), the first connecting end plate (5212) and the second connecting end plate (5213) enclose the sealing cavity.

8. The rotary kiln according to claim 5, characterized in that the feed tube set (50) further comprises:

-a first inlet line (53), said first inlet line (53) being in communication with said sealed cavity, said first inlet line (53) being for the passage of a sealing protection gas.

9. The rotary kiln according to claim 1, characterized in that the slewing bearing structure (30) comprises a second slewing bearing (32), the cylinder (10) being connected with an outer ring of the second slewing bearing (32), the seal assembly (40) comprising a second seal assembly (44), the end support structure (20) comprising a kiln tail support structure (22), the kiln tail support structure (22) comprising:

and the supporting cover (221) is connected with the inner ring of the second slewing bearing (32), and the supporting cover (221) and the second sealing assembly (44) are respectively arranged at two ends of the second slewing bearing (32).

10. The rotary kiln as recited in claim 9, further comprising:

the second annular plate (60) is connected with the cylinder body (10), the second annular plate (60) is arranged at one end of the second slewing bearing (32) far away from the supporting cover (221), a second mounting through hole (61) is formed in the second annular plate (60), and the second sealing assembly (44) is mounted in the second mounting through hole (61); and/or the number of the groups of groups,

the guide assembly (70), the guide assembly (70) includes guide rail (71) and guide block (72) that extend along predetermineeing the direction, guide block (72) movably set up on guide rail (71), guide block (72) and one of guide rail (71) with support cover (221) are connected, guide block (72) and the other of guide rail (71) with the inner circle of second slewing bearing (32) is connected.