CN218644798U

CN218644798U - Sealing device of rotary furnace and rotary furnace

Info

Publication number: CN218644798U
Application number: CN202222767492.XU
Authority: CN
Inventors: 王娜; 刘智祥; 罗朝斌
Original assignee: Xi'an Sunrise Chaoding New Energy Technology Co ltd
Current assignee: Xi'an Sunrise Chaoding New Energy Technology Co ltd
Priority date: 2022-10-20
Filing date: 2022-10-20
Publication date: 2023-03-17
Anticipated expiration: 2032-10-20

Abstract

The utility model relates to a rotary furnace and sealing device thereof, rotary furnace includes feed arrangement and slewer, feed arrangement with slewer intercommunication, rotary furnace's sealing device includes: the first sealing ring is sleeved on the peripheral surface of the feeding device and is connected with one end, close to the feeding device, of the rotating device; the second sealing ring is sleeved on the peripheral surface of the feeding device and is positioned on one side, away from the rotating device, of the first sealing ring; the pressing device is positioned on one side, away from the rotating device, of the second sealing ring and can push the second sealing ring to be attached to the first sealing ring along a first direction; wherein the first seal ring is rotatable relative to the second seal ring, and the first direction is a direction in which the second seal ring points toward the first seal ring. The sealing device of the rotary furnace can effectively prevent the problem of air leakage at the communication position of the feeding device and the rotary device.

Description

Sealing device of rotary furnace and rotary furnace

Technical Field

The disclosure relates to the technical field of sealing, in particular to a sealing device of a rotary furnace and the rotary furnace.

Background

In the prior art, rotary kilns can be used to dry lithium hydroxide monohydrate. However, lithium hydroxide monohydrate is soluble in water and can absorb carbon dioxide in air to deteriorate. The modified lithium hydroxide monohydrate gas is strongly alkaline and has strong corrosivity, and can generate great harm to the health of operators.

However, at present, the feeding device and the rotary device of the rotary furnace are not well sealed, so that the problem that harmful lithium hydroxide gas is easy to leak is caused, and therefore, great production safety hazards exist when the rotary furnace is used for drying the lithium hydroxide monohydrate.

It is noted that the information disclosed in the above background section is only for enhancement of understanding of the background of the present disclosure and therefore may include information that does not constitute prior art that is already known to a person of ordinary skill in the art.

SUMMERY OF THE UTILITY MODEL

The purpose of the present disclosure is to overcome the defects of the prior art, and provide a sealing device of a rotary furnace and a rotary furnace, wherein the sealing device of the rotary furnace can effectively prevent the problem of air leakage at the communication position of a feeding device and the rotary device.

The present disclosure firstly provides a sealing device of a rotary kiln, the rotary kiln includes a feeding device and a rotary device, the feeding device is communicated with the rotary device, the sealing device of the rotary kiln includes:

the first sealing ring is sleeved on the peripheral surface of the feeding device and is connected with one end, close to the feeding device, of the rotating device;

the second sealing ring is sleeved on the peripheral surface of the feeding device and is positioned on one side, away from the rotating device, of the first sealing ring;

the pressing device is positioned on one side, away from the slewing device, of the second sealing ring and can push the second sealing ring along a first direction so as to enable the second sealing ring to be attached to the first sealing ring;

wherein the first seal ring is rotatable relative to the second seal ring, and the first direction is a direction in which the second seal ring points toward the first seal ring.

In an exemplary embodiment of the present disclosure, the sealing device of the rotary kiln further includes:

a first seal ring support positioned between the first seal ring and the slewing device and having a first connection portion and a second connection portion, the first connection portion being connected with the first seal ring and the second connection portion being connected with the slewing device;

the second sealing ring support is positioned on one side, away from the slewing device, of the second sealing ring, and is provided with a third connecting portion, the third connecting portion is connected with the second sealing ring, and the pressing device is connected with the second sealing ring support.

In an exemplary embodiment of the present disclosure, the first seal ring includes: the feeding device comprises a feeding device, a first ring part and a second ring part, wherein the second ring part is sleeved on the outer peripheral surface of the feeding device, the first ring part is positioned on one side, away from the feeding device, of the second ring part, and the first ring part is provided with a first convex part;

the first seal ring holder includes: the feeding device comprises a first support part and a second support part, one end of the first support part is connected with the second support part, the other end of the first support part extends in the direction far away from the feeding device, a second convex part is arranged on one side, close to the first sealing ring, of the second support part, and the first convex part is located on the surface of the second convex part.

In an exemplary embodiment of the present disclosure, the second seal ring includes: the feeding device comprises a feeding device, a first ring part and a second ring part, wherein the feeding device is arranged on the feeding device, the first ring part is sleeved on the outer peripheral surface of the feeding device, the second ring part is positioned on one side of the feeding device, which is far away from the feeding device, and the first ring part is provided with a first convex part;

the second seal ring holder includes: the feeding device comprises a first support part and a second support part, wherein one end of the first support part is connected with the second support part, the other end of the first support part extends towards the direction far away from the feeding device, one side, close to the first sealing ring, of the second support part is provided with a first convex part, and the first convex part is located on the surface of the first convex part.

In an exemplary embodiment of the present disclosure, the fourth ring portion has a receiving cavity therein; the sealing device of the rotary kiln further comprises:

the floating sealing ring is positioned in the accommodating cavity and sleeved on the outer peripheral surface of the feeding device, and the floating sealing ring is attached to the inner side of the top wall of the fourth ring part;

and the baffle is positioned in the accommodating cavity, positioned on two sides of the floating sealing ring in the first direction and provided with a gap between the baffle and the floating sealing ring.

In an exemplary embodiment of the present disclosure, the sealing apparatus of the rotary kiln further includes:

the protective gas access channel comprises a first opening and a second opening, the first opening is communicated with the accommodating cavity, and the second opening is used for introducing the protective gas.

In an exemplary embodiment of the disclosure, a side of the fourth ring portion remote from the first seal ring has a platform portion; the pressing device comprises:

a compression member comprising: the power part is connected with the telescopic part so as to push the telescopic part to move along the first direction or the direction opposite to the first direction;

the first support frame is positioned on one side of the platform part, which is far away from the rotating device, and is connected with the peripheral surface of the feeding device, and the power part is fixedly connected with the first support frame;

the second support frame is located the surface of platform portion, and with platform portion fixed connection, the pars contractilis is kept away from the one end of power portion with second support frame fixed connection.

a support structure, comprising: one end of the third support frame is connected with the platform part, and the other end of the third support frame is connected with the rolling wheel;

the supporting block is positioned on one side, far away from the feeding device, of the supporting structure, the rolling wheels are positioned on the surfaces of the supporting block, and the rolling wheels can roll on the surfaces of the supporting block along the first direction or the direction opposite to the first direction.

the supporting sleeve is sleeved on the outer peripheral surface of the feeding device, the first sealing ring and the second sealing ring are sleeved on the outer peripheral surface of the supporting sleeve, a concave part is arranged at one end, close to the rotating device, of the supporting sleeve, and an accommodating groove is defined by the concave part and the outer peripheral surface of the feeding device;

and the sealing filler is filled in the accommodating groove and is attached to the outer peripheral surfaces of the support sleeve and the feeding device.

The present disclosure also provides a rotary kiln comprising:

a feed device having a feed inlet;

the rotating device is communicated with the feeding device;

the sealing device of the rotary furnace is arranged on the peripheral surface of the feeding device and is connected with the rotary device, and the sealing device of the rotary furnace is any one of the sealing devices of the rotary furnace.

The technical scheme provided by the disclosure can achieve the following beneficial effects:

the sealing device of the rotary furnace provided by the disclosure comprises a first sealing ring, a second sealing ring and a pressing device. The first sealing ring can be sleeved on the outer peripheral surface of the feeding device, and is connected with one end, close to the feeding device, of the slewing device, so that the first sealing ring can rotate under the driving of the slewing device. The second sealing ring can be sleeved on the peripheral surface of the feeding device and can be positioned on one side, away from the rotating device, of the first sealing ring. The compressing device can be positioned on one side, away from the rotating device, of the second sealing ring and can push the second sealing ring along the first direction so that the second sealing ring is attached to the first sealing ring.

Therefore, the first sealing ring and the second sealing ring are sleeved on the outer peripheral surface of the feeding device, so that the communication position of the feeding device and the rotating device can be sealed. In addition, the first sealing ring and the second sealing ring can be tightly attached under the pressing force of the pressing device, so that the sealing performance of the sealing device can be further improved.

In addition, when the first sealing ring rotates relative to the second sealing ring, a pair of friction pairs can be formed by the surface of the first sealing ring and the surface of the second sealing ring, so that the first sealing ring and the second sealing ring can be attached more tightly, the sealing performance of the sealing device can be further improved, further, the harmful gas in the rotary furnace can be prevented from leaking, and therefore the production potential safety hazard can be prevented.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure. It is to be understood that the drawings in the following description are merely exemplary of the disclosure, and that other drawings may be derived from those drawings by one of ordinary skill in the art without the exercise of inventive faculty.

FIG. 1 is a schematic structural view showing a partial structure of a rotary kiln and a sealing apparatus of the rotary kiln according to an exemplary embodiment of the present disclosure;

fig. 2 shows an enlarged schematic structural view at a in fig. 1 according to an exemplary embodiment of the present disclosure.

Description of reference numerals:

1. a feeding device; 2. a turning device; 3. a first seal ring; 4. a second seal ring; 5. a pressing device; 6. a first seal ring holder; 7. a second seal ring holder; 8. a floating seal ring; 9. a baffle plate; 10. a protective gas access channel; 11. an outer cylinder; 12. a feeding pipe; 13. a feed inlet; 14. an air outlet; 15. a flexible telescoping member; 16. a support structure; 17. a support block; 18. a support sleeve; 19. sealing and filling; 20. a seal ring; 31. a first ring portion; 32. a second ring portion; 33. a fourth connecting portion; 41. a third ring portion; 42. a fourth ring portion; 43. a fifth connecting part; 51. a compression member; 52. a first support frame; 53. a second support frame; 54. a gas collecting pipe; 61. a first frame part; 62. a second bracket part; 71. a third bracket part; 72. a fourth bracket part; 73. a platform part; 161. a third support frame; 162. a rolling wheel; 511. a power section; 512. a telescopic part; 721. a receiving cavity.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.

Furthermore, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details.

The terms "a," "an," "the," and "said" are used to indicate the presence of one or more elements/components/etc.; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. other than the listed elements/components/etc.

It will be understood that, although the terms first, second, etc. may be used herein to describe various elements, components, elements and/or sections, these elements, components, elements and/or sections should not be limited by these terms. Rather, these terms are used to distinguish one element, component, element or section from another.

Lithium hydroxide is a white crystalline powder that is soluble in water, slightly soluble in alcohol, and usually present as a monohydrate, i.e.: lithium hydroxide monohydrate. When lithium hydroxide monohydrate is prepared, lithium carbonate can be used as a raw material, and lithium carbonate and calcium hydroxide are reacted, so that lithium hydroxide monohydrate can be generated. However, lithium hydroxide monohydrate is soluble in water, and it is deteriorated by absorbing carbon dioxide in the air. The modified lithium hydroxide monohydrate gas is strongly alkaline and has strong corrosivity, and can generate great harm to the health of operators

At present, as shown in fig. 1, a rotary kiln is needed when drying lithium hydroxide monohydrate, the rotary kiln can comprise a feeding device 1 and a rotary device 2, and the feeding device 1 can be communicated with the rotary device 2. The inventor of the present disclosure finds that the conventional rotary kiln does not provide a good seal between the feeding device 1 and the rotary device 2, and thus the deteriorated lithium hydroxide monohydrate gas and powder leak out from the communication between the feeding device 1 and the rotary device 2 to cause a great safety hazard, which may have a great influence on the health of the operator. Moreover, if harmful gas leaks into the external environment, it may have a great influence on the ecological environment.

Accordingly, the inventors of the present disclosure spent much time and creative work after finding the above technical problems, and finally provided a sealing apparatus of a rotary kiln. The sealing device of the rotary furnace can effectively prevent the problem of air leakage at the communication part of the feeding device 1 and the rotary device 2.

In one embodiment of the present disclosure, as shown in fig. 1 and 2, the sealing apparatus of the rotary kiln may include: a first sealing ring 3, a second sealing ring 4 and a hold-down device 5. The first sealing ring 3 may be sleeved on the outer circumferential surface of the feeding device 1, and the first sealing ring 3 may be connected with one end of the rotating device 2 close to the feeding device 1. The second sealing ring 4 may be sleeved on the outer circumferential surface of the feeding device 1, and may be located on a side of the first sealing ring 3 away from the turning device 2. The pressing device 5 may be located on a side of the second sealing ring 4 away from the turning device 2 and may be capable of pushing the second sealing ring 4 in the first direction so that the second sealing ring 4 can be fitted with the first sealing ring 3.

With this, the present disclosure can seal the communication between the feeding device 1 and the turning device 2 by fitting the first seal ring 3 and the second seal ring 4 around the outer circumferential surface of the feeding device 1. In addition, the first seal ring 3 and the second seal ring 4 can be tightly attached to each other by the pressing force of the pressing device 5, and thus the sealing performance of the sealing device can be further improved.

In this embodiment, the first seal ring 3 is rotatable relative to the second seal ring 4. When the first sealing ring 3 rotates relative to the second sealing ring 4, a pair of friction pairs can be formed by the surface of the first sealing ring 3 and the surface of the second sealing ring 4, so that the first sealing ring 3 and the second sealing ring 4 can be attached more tightly, the sealing performance of the sealing device can be further improved, further, the leakage of harmful gas in the rotary furnace can be prevented, and the production of potential safety hazards can be prevented.

The first direction may be a direction in which the second seal ring 4 points toward the first seal ring 3.

In one embodiment of the present disclosure, the sealing apparatus of the rotary kiln may further include: a first sealing ring holder 6 and a second sealing ring holder 7. Wherein the first seal ring support 6 may be located between the first seal ring 3 and the swivel device 2, and the first seal ring support 6 may have a first connection portion and a second connection portion, the first connection portion may be connected with the first seal ring 3, and the second connection portion may be connected with the swivel device 2. This is disclosed can support first sealing ring 3 through setting up first sealing ring support 6 to this laminating compactness that can improve first sealing ring 3 and second sealing ring 4 can also improve first sealing ring 3's life.

In this embodiment, the first connection portion may be a first bolt hole, the first sealing ring 3 may be provided with a first through hole thereon, and a bolt may be used to sequentially pass through the first through hole of the first sealing ring 3 and be connected to the first bolt hole of the first connection portion, so that the first connection portion and the first sealing ring 3 are detachably connected.

In addition, the second connecting portion may be a second through hole, a second bolt hole may be provided on the swiveling device 2, and a bolt may be sequentially inserted through the second through hole of the second connecting portion to be connected to the second bolt hole on the swiveling device 2, so that the second connecting portion and the swiveling device 2 may be detachably connected.

This is openly connected first connecting portion and first sealing ring 3 through the bolt to connect second connecting portion and slewer 2 through the bolt, can be so that first sealing ring 3, first support frame 52 and slewer 2 three when having higher joint strength, save the cost by a wide margin. Meanwhile, the first sealing ring 3 and the first support frame 52 can be conveniently detached and installed by using a bolt connection mode, so that the first sealing ring is relatively simple and convenient to maintain, and the maintenance cost can be greatly saved.

However, it should be noted that the first seal ring 3 and the first support frame 52, and the first support frame 52 and the slewing device 2 may not be connected by bolts, for example: the first seal ring 3 and the first support frame 52, and the first support frame 52 and the rotating device 2 may also adopt connection manners such as studs, bonding, clamping, and the like, and may be selected and arranged according to actual needs, which is within the protection scope of the present disclosure.

In one embodiment of the present disclosure, the first seal ring 3 may include: a first ring part 31 and a second ring part 32. The second ring portion 32 may be sleeved on the outer circumferential surface of the feeding device 1, the first ring portion 31 may be located on a side of the second ring portion 32 away from the feeding device 1, and the first ring portion 31 may have a first protrusion. It can be understood that, since the first ring portion 31 has the first convex portion, the width of the first ring portion 31 is larger than the width of the second ring portion 32, and the orthographic projection of the second ring portion 32 can be located within the orthographic projection of the first ring portion 31.

In this embodiment, in order to ensure that the first sealing ring 3 and the second sealing ring 4 can be closely attached everywhere, one side of the first ring portion 31 close to the second sealing ring 4 is flush with one side of the second ring portion 32 close to the second sealing ring 4, that is: the orthographic projection of the first ring part 31 on the side close to the second seal ring 4 coincides with the orthographic projection of the second ring part 32 on the side close to the second seal ring 4.

The first seal ring holder 6 may include: a first bracket portion 61 and a second bracket portion 62. Wherein, one end of the first bracket part 61 may be connected with the second bracket part 62, and the other end of the first bracket part 61 may extend in a direction away from the feeding device 1. The second leg portion 62 may have a second protrusion on a side thereof adjacent to the first seal ring 3. It can be understood that, since the second bracket part 62 has the second convex part, the width of the second bracket part 62 is larger than the width of the first bracket part 61, and the orthographic projection of the first bracket part 61 can be positioned within the orthographic projection of the second bracket part 62.

In this embodiment, the first protrusion may be located on the surface of the second protrusion to provide further support to the first protrusion through the second protrusion, so as to improve the connection stability of the first seal ring 3 and the first seal ring holder 6.

In one embodiment of the present disclosure, the second bracket part 62 may further have a fifth convex part. The fifth convex portion may be located at a side of the second bracket portion 62 close to the swing device 2. The end face of one side of the turning device 2 close to the first sealing ring support 6 may be located on the fifth convex portion to support the turning device 2 through the fifth convex portion, so that the stability of connection between the first sealing ring support 6 and the turning device 2 may be improved. Meanwhile, the end face of one side of the rotary device 2 close to the first sealing ring support 6 can be positioned on the fifth convex part, so that harmful gas leaked from the rotary device 2 can be effectively blocked, and the sealing capability of the sealing device of the rotary furnace can be further improved.

The first seal ring support 6 may also be of an annular structure, so that each position in the circumferential direction of the first seal ring 3 can be supported, and the support stability of the first seal ring support 6 for the first seal ring 3 can be further improved. In addition, when the first support frame 52 has an annular structure, it is possible to support the slewing device 2 at each position in the circumferential direction of the end surface on the side close to the first seal ring holder 6, and thus it is possible to further improve the stability of the first seal ring holder 6 in supporting the slewing device 2. Meanwhile, when the first support frame 52 is of an annular structure, each position on the end face of the side, close to the first seal ring support 6, of the rotary device 2 may be located on the fifth convex portion, so that harmful gas is blocked in the circumferential direction, and the sealing capability of the sealing device of the rotary furnace can be further improved.

In one embodiment of the present disclosure, the first and second connecting portions may be located on the first bracket portion 61, so that the first seal ring 3 and the swivel device 2 may be both support-connected with the first seal ring 3 by the first bracket portion 61.

In this embodiment, the first seal ring 3 may further include: and a fourth connecting portion 33. The fourth connecting portion 33 may be connected to a side of the first ring portion 31 away from the second ring portion 32, and may extend in a direction away from the second ring portion 32. The width of the fourth connection portion 33 may be smaller than the width of the first ring portion 31. And, the first through hole of the first sealing ring 3 may be located on the fourth connecting portion 33, so that an operator can connect or disconnect the first sealing ring 3 and the first sealing ring holder 6.

In this embodiment, an orthographic projection of one side of the fourth connecting portion 33 close to the first sealing ring bracket 6 and an orthographic projection of one side of the first ring portion 31 close to the first sealing ring bracket 6 can be overlapped, so that the first sealing ring 3 can be tightly attached to the first sealing ring bracket 6, and the sealing effect is better.

In one embodiment of the present disclosure, the second seal ring holder 7 may be located at a side of the second seal ring 4 away from the swivel device 2, and the second seal ring holder 7 may have a third connection portion, which may be connected with the second seal ring 4. The above-mentioned hold-down device 5 can be connected with the second sealing ring support 7 to promote the second sealing ring support 7 to make the second sealing ring 4 closely fit with the first sealing ring 3. This is disclosed can support second sealing ring 4 through setting up second sealing ring support 7 to this laminating compactness that can further improve first sealing ring 3 and second sealing ring 4, thereby can improve the life of second sealing ring 4.

In this embodiment, the third connecting portion may be a third bolt hole, a third through hole may be provided on the second sealing ring 4, and a bolt may be used to sequentially pass through the third through hole of the second sealing ring 4 and be connected to the third bolt hole of the third connecting portion, so that the third connecting portion and the second sealing ring 4 may be detachably connected.

This is disclosed to be connected third connecting portion and second sealing ring 4 through the bolt, can be so that second sealing ring 4 and second support frame 53 when having higher joint strength, save the cost by a wide margin. Meanwhile, the second sealing ring 4 and the second supporting frame 53 can be conveniently detached and installed by using a bolt connection mode, so that the maintenance is simple and convenient, and the maintenance cost can be greatly saved.

However, it should be noted that the second seal ring 4 and the second support bracket 53 may not be connected by bolts, for example: the second sealing ring 4 and the second supporting frame 53 may also adopt a connection manner such as a stud, an adhesive, a snap connection, and the like, and may be selected and set according to actual needs, which are all within the protection scope of the present disclosure.

In one embodiment of the present disclosure, the second seal ring 4 may include: a third ring portion 41 and a fourth ring portion 42. Wherein, the fourth ring portion 42 can be sleeved on the outer circumferential surface of the feeding device 1, the third ring portion 41 can be located on a side of the fourth ring portion 42 away from the feeding device 1, and the third ring portion 41 can have a third convex portion. It can be understood that, since the third ring portion 41 has the third convex portion, the width of the third ring portion 41 is larger than the width of the fourth ring portion 42, and the orthographic projection of the fourth ring portion 42 can be located within the orthographic projection of the third ring portion 41.

In this embodiment, in order to further ensure that the first sealing ring 3 and the second sealing ring 4 can be closely attached everywhere, one side of the third ring portion 41 close to the first sealing ring 3 is flush with one side of the fourth ring portion 42 close to the first sealing ring 3, that is: the orthographic projection of the third ring part 41 on the side close to the first sealing ring 3 coincides with the orthographic projection of the fourth ring part 42 on the side close to the first sealing ring 3.

The second seal ring holder 7 may include: a third leg portion 71 and a fourth leg portion 72. Wherein, one end of the third bracket portion 71 may be connected with the fourth bracket portion 72, and the other end of the third bracket portion 71 may extend in a direction away from the feeding device 1. The fourth leg portion 72 may have a fourth protrusion on a side thereof adjacent to the second seal ring 4. It can be understood that, since the fourth leg portion 72 has the fourth convex portion, the width of the fourth leg portion 72 is larger than the width of the third leg portion 71, and the orthographic projection of the third leg portion 71 can be located within the orthographic projection of the fourth leg portion 72.

In this embodiment, the third protrusion may be located on the surface of the fourth protrusion to provide further support to the third protrusion through the fourth protrusion, so that the connection stability of the second seal ring 4 and the second seal ring holder 7 may be improved.

The second seal ring holder 7 may also be of an annular structure, so that each position in the circumferential direction of the second seal ring 4 can be supported, and the support stability of the second seal ring holder 7 on the second seal ring 4 can be further improved.

In one embodiment of the present disclosure, a third connection portion may be located on the third bracket portion 71 so that the second seal ring 4 is support-connected with the second seal ring 4 through the third bracket portion 71.

In this embodiment, the second seal ring 4 may further include: and a fifth connecting portion 43. The fifth connecting portion 43 may be connected to a side of the third ring portion 41 away from the fourth ring portion 42, and may extend in a direction away from the fourth ring portion 42. The width of the fifth connecting portion 43 may be smaller than the width of the third ring portion 41. And, the third through hole of the second sealing ring 4 may be located on the fifth connecting portion 43, so that an operator can connect or disconnect the second sealing ring 4 and the second sealing ring support 7.

In this embodiment, an orthographic projection of one side of the fifth connecting portion 43 close to the second sealing ring bracket 7 and an orthographic projection of one side of the third ring portion 41 close to the second sealing ring bracket 7 may coincide, so that the second sealing ring 4 can be closely attached to the second sealing ring bracket 7, and the sealing effect is better.

In an embodiment of the present disclosure, two sides of the second sealing ring 4 in the first direction may be provided with oil inlets, and a first oil groove is opened on a surface of the first sealing ring 3 close to the second sealing ring 4, and a second oil groove is opened on a surface of the second sealing ring 4 close to the first sealing ring 3. Lubricating oil can be injected into the second sealing ring 4 through the oil inlet, so that the lubricating oil can enter the first oil groove and the second oil groove, and the abrasion of the surfaces of the first sealing ring 3 and the second sealing ring 4 can be reduced through the lubricating oil. Simultaneously, can also make first sealing ring 3 form one deck oil film between first sealing ring 3 and second sealing ring 4 at the pivoted in-process, can block harmful gas through this oil film to improve its sealing capacity.

In an embodiment of the present disclosure, the first sealing ring 3 may be a moving ring, and the second sealing ring 4 may be a stationary ring, but is not limited thereto, and may be selected and arranged according to actual needs, which is within the protection scope of the present disclosure.

In one embodiment of the present disclosure, the inside of the fourth ring portion 42 may have a receiving chamber 721. The sealing device of the rotary kiln may further include: a floating seal ring 8. The floating seal ring 8 is located in the accommodating cavity 721 and can be sleeved on the outer peripheral surface of the feeding device 1, and the floating seal ring 8 can be attached to the inner side of the top wall of the fourth ring portion 42. This disclosure can form labyrinth in holding chamber 721 through setting up floating seal ring 8 to can not block the harmful gas's the condition at first sealing ring 3 and second sealing ring 4 under, further block the harmful gas who leaks.

In this embodiment, a plurality of sealing rings may be provided in the accommodation chamber 721, for example: two, three, etc. and with a spacing between the sealing rings, the sealing capacity of the sealing device can be even further improved.

In this embodiment, the sealing device of the rotary kiln may further include: a baffle 9. The baffle 9 may be located in the accommodating cavity 721 and may be located on both sides of the floating seal ring 8 in the first direction to limit the displacement of the floating seal ring 8 in the first direction, so as to prevent the floating seal ring 8 from being dislocated to affect the sealing effect.

In one embodiment of the present disclosure, the sealing apparatus of the rotary kiln may further include: the protective gas is introduced into the channel 10. The shielding gas access passage 10 may include a first opening, which may communicate with the accommodation chamber 721, and a second opening, which may be used to introduce shielding gas. Therefore, the pressure in the accommodating cavity 721 can be increased by introducing the protective gas, so that harmful gas is prevented from entering the accommodating cavity 721, and the rotary furnace can be further sealed.

When the second sealing ring support 7 is of an annular structure, the sealing device of the rotary kiln may be provided with a plurality of shielding gas access passages 10, and the plurality of shielding gas access passages 10 may be evenly distributed along the circumferential direction of the second sealing ring support 7.

In this embodiment, the protection gas may be nitrogen, but is not limited thereto, and the protection gas may also be other gases that do not react with harmful gases, and may be selected and set according to actual needs, which is within the protection scope of the present disclosure.

In an embodiment of the present disclosure, a side of the fourth ring portion 42 away from the first sealing ring 3 may be provided with a platform portion 73, and the accommodating cavity 721 may also be located in the platform portion 73. The above-mentioned pressing device 5 may include: a pressing member 51, a first support bracket 52 and a second support bracket 53. Wherein, the pressing piece 51 may include: a power part 511 and a telescopic part 512, the power part 511 can be connected with the telescopic part 512 to push the telescopic part 512 to move along a first direction or a direction opposite to the first direction. The first support frame 52 can be located on a side of the platform part 73 away from the rotating device 2, and can be connected to an outer circumferential surface of the feeding device 1, and the power part 511 can be fixedly connected to the first support frame 52, so as to fix the power part 511 through the first support frame 52. The second support frame 53 may be located on the surface of the platform portion 73, and is fixedly connected to the platform portion 73, and an end of the expansion portion 512 away from the power portion 511 may be fixedly connected to the second support frame 53.

Thus, when the telescopic part 512 moves in the first direction or the direction opposite to the first direction, the second supporting frame 53 can be pushed to move in the first direction or the direction opposite to the first direction. Because the second support frame 53 is fixedly connected with the platform part 73, the platform part 73 can be pushed to move along the first direction or the direction opposite to the first direction, and then the second sealing ring 4 can be tightly attached to or separated from the first sealing ring 3.

In the present embodiment, the pressing member 51 may be an air cylinder, but is not limited thereto, and the pressing member 51 may also be a hydraulic cylinder, etc., which are within the protection scope of the present disclosure.

In the present embodiment, the first support frame 52 and the second support frame 53 may each be of an annular structure. When the first support frame 52 and the second support frame 53 are annular structures, a plurality of pressing members 51 may be provided, and the plurality of pressing members 51 are uniformly arranged in the circumferential direction of the first support frame 52 and the second support frame 53. For example, four pressing members 51 may be provided, and the included angle between two adjacent pressing members 51 may be 90 °, but is not limited thereto.

In one embodiment of the present disclosure, when the pressing member 51 is a cylinder, the pressing device 5 may further include a gas collecting pipe 54, and the gas collecting pipe 54 may be located on an outer circumferential surface of the feeding device 1 and connected with the power part 511 to supply compressed gas to the power part 511. The gas collecting pipe 54 can control the amount of compressed gas entering the power part 511, so that the pressure of the power part 511 can be conveniently controlled, and the tightness of the fit of the first sealing ring 3 and the second sealing ring 4 can be further controlled.

In this embodiment, the number of the gas collecting pipes 54 may be the same as the number of the pressing members 51, so as to control the pressure of each pressing member 51, and thus to control the tightness of the first sealing ring 3 and the second sealing ring 4.

In one embodiment of the present disclosure, the swing device 2 may further include: a flexible bellows 15. The flexible telescoping member 15 may be located between the first support frame 52 and the second support frame 53, and the flexible telescoping member 15 may be capable of conforming to the surfaces of the first support frame 52 and the second support frame 53. The flexible telescopic member 15 can be extended and retracted along the first direction, so that the first sealing ring 3 and the second sealing ring 4 can be prevented from being damaged due to thermal expansion in the friction process. In the present embodiment, the flexible expansion member 15 may be a flexible joint, but is not limited thereto.

The sealing device of the rotary kiln provided by the present disclosure may further include: a support structure 16 and support blocks 17. Wherein, the supporting structure 16 may include a third supporting frame 161 and a rolling wheel 162, one end of the third supporting frame 161 may be connected with the platform part 73, and the other end of the third supporting frame 161 may be connected with the rolling wheel 162. The supporting block 17 may be located on a side of the supporting structure 16 remote from the feeding device 1, the rolling wheel 162 may be located on a surface of the supporting block 17, and the rolling wheel 162 may be capable of rolling in a first direction or a direction opposite to the first direction on the surface of the supporting block 17. The whole sealing device can be supported by arranging the supporting structure 16 and the supporting block 17, and the problem that the sealing device falls off is solved.

In one embodiment of the present disclosure, the sealing device of the rotary kiln may further include: a support sleeve 18 and a sealing packing 19. Wherein, the supporting sleeve 18 can be sleeved on the outer peripheral surface of the feeding device 1. The first sealing ring 3, the second sealing ring 4, the first sealing ring bracket 6, the second sealing ring bracket 7 and the floating sealing ring 8 can be sleeved on the peripheral surface of the supporting sleeve 18. Also, one end of the support sleeve 18 close to the turning device 2 may have a recess, which may enclose a receiving groove with the outer circumferential surface of the feeding device 1.

The packing material 19 may be filled in the housing groove and attached to the outer peripheral surfaces of the support sleeve 18 and the feeder 1. The connection between the feeding device 1 and the rotating device 2 can be further sealed by arranging the sealing packing 19. In the present embodiment, the sealing packing 19 may be a packing set, but is not limited thereto, and other sealing packing 19 may also be used, which is within the protection scope of the present disclosure.

In this embodiment, the side of the support sleeve 18 close to the feeding device 1 may also have at least one groove. The sealing means of the rotary kiln may further comprise at least one sealing ring 20, and the sealing ring 20 may be located in the groove to seal between the support sleeve 18 and the feeding device 1 to prevent the harmful gas leaked from the packing 19 from leaking out between the support sleeve 18 and the feeding device 1.

The present disclosure also provides a rotary kiln, which may include: a feeding device 1, a rotating device 2 and a sealing device of the rotary furnace. The rotary furnace has good sealing performance, can prevent harmful gas from leaking out from the space between the feeding device 1 and the rotary device 2, and also can prevent the production potential safety hazard.

In one embodiment of the present disclosure, the feeding device 1 may include an outer barrel 11 and a feeding pipe 12, the feeding pipe 12 may be located inside the outer barrel 11, and the feeding pipe 12 may be a spiral pipe. The outer barrel 11 may be provided with a feed inlet 13 and an air outlet 14, and the feed inlet 13 may be connected to the feed pipe 12 for feeding the material into the feed pipe 12. The gas outlet 14 is used for discharging harmful gas into the tail gas treatment device.

The sealing device of the rotary kiln may be provided on the outer circumferential surface of the charging device 1 and may be connected to the rotating device 2. Specifically, the sealing means of the rotary kiln described above may be provided on the outer peripheral surface of the outer tub 11.

In this embodiment, the sealing device of the rotary kiln may be the sealing device of the rotary kiln described in the above subject. The structure of the sealing device of the rotary kiln and its connection relationship with the feed device 1 and the rotary device 2 have been described in detail in view of the above subject matter. Therefore, a detailed description of the sealing device of the rotary kiln will not be provided herein, and reference may be made to the detailed description of the sealing device of the rotary kiln in the above subject matter, which is within the scope of the present disclosure.

It should be noted that the sealing device of the rotary furnace provided by the present disclosure can be used for sealing the rotary furnace. The rotary furnace can be used for drying lithium hydroxide monohydrate and other materials. In addition, the sealing device of the rotary furnace provided by the disclosure can be used when other materials are dried in the rotary furnace, and also has a good sealing effect.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice in the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

Claims

1. The sealing device of the rotary furnace is characterized by comprising a feeding device and a rotary device, wherein the feeding device is communicated with the rotary device, and the sealing device of the rotary furnace comprises:

the pressing device is positioned on one side, away from the rotating device, of the second sealing ring and can push the second sealing ring along a first direction so as to enable the second sealing ring to be attached to the first sealing ring;

2. The rotary kiln seal assembly of claim 1, further comprising:

the second sealing ring support is located on one side, away from the slewing device, of the second sealing ring, the second sealing ring support is provided with a third connecting portion, the third connecting portion is connected with the second sealing ring, and the pressing device is connected with the second sealing ring support.

3. The sealing device of the rotary kiln according to claim 2, wherein the first seal ring comprises: the feeding device comprises a first ring part and a second ring part, wherein the second ring part is sleeved on the outer peripheral surface of the feeding device, the first ring part is positioned on one side, away from the feeding device, of the second ring part, and the first ring part is provided with a first convex part;

4. The sealing device of the rotary kiln according to claim 2, wherein the second seal ring comprises: the feeding device comprises a feeding device, a first ring part and a second ring part, wherein the feeding device is arranged on the feeding device, the first ring part is sleeved on the outer peripheral surface of the feeding device, the second ring part is positioned on one side of the feeding device, which is far away from the feeding device, and the first ring part is provided with a first convex part;

the second seal ring holder includes: the feeding device comprises a third bracket part and a fourth bracket part, one end of the third bracket part is connected with the fourth bracket part, the other end of the third bracket part extends in the direction far away from the feeding device, a fourth convex part is arranged on one side, close to the second sealing ring, of the fourth bracket part, and the third convex part is positioned on the surface of the fourth convex part.

5. The sealing device of the rotary kiln according to claim 4, wherein the fourth ring portion has a receiving chamber therein; the sealing device of the rotary kiln further comprises:

6. The rotary kiln seal assembly of claim 5, further comprising:

7. The rotary kiln seal assembly of claim 4, wherein the fourth ring portion has a platform portion on a side thereof remote from the first seal ring; the pressing device comprises:

8. The rotary kiln seal assembly of claim 7, further comprising:

a support structure comprising: one end of the third support frame is connected with the platform part, and the other end of the third support frame is connected with the rolling wheel;

the supporting block is positioned on one side, far away from the feeding device, of the supporting structure, the rolling wheel is positioned on the surface of the supporting block, and the rolling wheel can roll on the surface of the supporting block along the first direction or the direction opposite to the first direction.

9. The rotary kiln seal arrangement according to claim 1, further comprising:

the supporting sleeve is sleeved on the peripheral surface of the feeding device, the first sealing ring and the second sealing ring are sleeved on the peripheral surface of the supporting sleeve, a concave part is arranged at one end of the supporting sleeve close to the rotating device, and an accommodating groove is defined by the concave part and the peripheral surface of the feeding device;

10. A rotary kiln, comprising:

a feed device having a feed inlet;

the rotating device is communicated with the feeding device;

a sealing device for a rotary kiln, which is provided on an outer peripheral surface of the charging device and is connected to the rotary kiln, according to any one of claims 1 to 9.