Sealing device of rotary kiln

Abstract

The utility model discloses a sealing device of a rotary kiln. The sealing device comprises a kiln body; the kiln head is arranged at one end of the kiln body, and a mounting seat is arranged at one end, close to the kiln body, of the kiln head; the clamping components are circumferentially distributed on the mounting base, each clamping component comprises a clamping plate arranged on the mounting base, a push rod is further arranged on the mounting base, and a roller is arranged at the end, close to the kiln body, of the push rod; the pushing part is arranged on the mounting seat; according to the utility model, the clamping component is matched with the pushing component, the pushing component drives the rollers to move to one side of the connecting end of the kiln body, and then the adjusting components apply pushing force to the corresponding rollers close to the kiln head; and the rollers are matched with the corresponding clamping plates to apply clamping force towards the center direction of the joint between the kiln body and the kiln head, so that the kiln body and the kiln head can be sealed, and the installation is convenient.

Description

Technical Field

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

[0002] As a calcining equipment widely used in building materials, metallurgy, chemical industry and other industries, rotary kiln can continuously calcine materials under high temperature environment, thereby improving the efficiency of heat exchange and production efficiency.

[0003] A rotary kiln consists of a rotatable kiln body and a kiln head and a kiln head respectively arranged at both ends of the rotary kiln body. When the rotary kiln is in operation, materials are transported into the rotary kiln body and processed by the rotation of the rotary kiln body. To ensure the normal operation of the rotary kiln, the connection between the rotary kiln body and the kiln head and the kiln head at both ends requires a sealing device. The existing sealing method is usually to install fish scale seals between the rotary kiln body and the kiln or kiln head. Although this sealing method has a good sealing effect, the installation process of installing the fish scale metal sheet is relatively complicated. Therefore, the present application specifically proposes a sealing device that can be easily installed. Utility Model Content

[0004] The main purpose of the utility model is to provide a sealing device for a rotary kiln which can be easily installed.

[0005] To achieve the above-mentioned purpose, the utility model provides a sealing device for a rotary kiln, comprising:

[0006] Rotatable kiln body;

[0007] A kiln head is provided at one end of the kiln body along the length direction of the kiln body, the kiln head is used to transport materials into the kiln body, and an annular mounting seat is provided at one end of the kiln head close to the kiln body;

[0008] A plurality of clamping components, each of which is circumferentially distributed on the mounting seat, the clamping components including a clamping plate provided on the mounting seat, the mounting seat also being provided with a push rod that slides through the clamping plate along the length direction of the kiln body, the push rod being provided with a roller at one end close to the kiln body, the roller being used to press the connecting end of the kiln body toward the kiln head, the roller and the clamping plate cooperating to clamp the connection between the kiln body and the kiln head;

[0009] The pushing component is arranged on the mounting seat and is used to drive each of the push rods to move back and forth along the length direction of the kiln body.

[0010] Furthermore, an adjustment component is provided at the end of the push rod away from the kiln body, and the adjustment component includes a first sleeve arranged at the end of the push rod away from the kiln body, the push rod is slidably arranged in the first sleeve, the first sleeve is connected to the pushing component and has an internal thread, and a second sleeve is provided at the end of the first sleeve away from the pushing component, the second sleeve has an external thread and is screwed with the internal thread of the first sleeve, and the second sleeve is rotatably sleeved on the push rod. When the second sleeve rotates, the second sleeve is screwed with the first sleeve and moves back and forth along the length direction of the push rod. A first elastic unit is provided between the push rod and the second sleeve in the first sleeve, and the first elastic unit applies a thrust to the push rod to move toward the kiln head.

[0011] Furthermore, the kiln body is provided with a plurality of annular first sealing grooves at one end close to the kiln head, wherein the first sealing grooves are concentrically arranged and their diameters decrease from the outside to the inside; the kiln head is provided with a plurality of annular second sealing grooves at one end close to the kiln body, wherein the second sealing grooves are concentrically arranged and their diameters decrease from the outside to the inside, and the first sealing grooves and the second sealing grooves are staggered.

[0012] A sealing component is provided between the kiln body and the kiln head, and the sealing component includes a plurality of second sealing rings arranged on one end of the kiln body close to the kiln head, and each second sealing ring corresponds to each second sealing groove one by one. The sealing component also includes a plurality of first sealing rings arranged on one end of the kiln head close to the kiln body, and each first sealing ring corresponds to each first sealing groove one by one. When the kiln body and the kiln head are spliced, each first sealing ring is inserted into the corresponding first sealing groove, and each second sealing ring is inserted into the corresponding second sealing groove.

[0013] Furthermore, a plurality of first screw holes are distributed on the kiln body and the kiln head;

[0014] Each second sealing ring is detachably arranged on the kiln body, and each first sealing ring is detachably arranged on the kiln head, and a second screw hole is provided at the position of the corresponding first screw hole on each first sealing ring and each second sealing ring. When each first sealing ring is connected to the kiln head and each second sealing ring is connected to the kiln body, each first screw hole is coaxial with and connected to the corresponding second screw hole. A bolt is also provided in each second screw hole. The bolt is inserted into and screwed into the connection between the corresponding first screw hole and the corresponding second screw hole. The bolt is used to prevent the corresponding sealing ring from accidentally falling off from the kiln body or the kiln head.

[0015] Furthermore, the pushing component includes a guide platform fixed on the mounting seat, the guide platform is annular, and a movable platform is slidably arranged in the guide platform, one side of the movable platform is connected to each first sleeve, and a plurality of power units are also provided on the mounting seat, each power unit is arranged on the side of the guide platform away from the movable platform, and the moving end of each power unit passes through the guide platform and is connected to the movable platform, each power unit is used to drive the movable platform to move toward or away from the kiln body, thereby driving each first sleeve to move toward or away from the kiln body.

[0016] Furthermore, a cavity is provided on the guide platform, and a plurality of limiting grooves distributed along the setting direction of the kiln head are provided on the movable platform. When one of the limiting grooves moves to a corresponding position of the cavity, the limiting groove is communicated with the cavity.

[0017] The guide platform is also provided with a limiting component, which includes a first magnetic unit arranged at the top of the chamber, the first magnetic unit is connected to the external controller signal, a limiting rod is provided below the first magnetic unit, the limiting rod is vertically slidably arranged in the chamber, and a second magnetic unit is provided at one end of the limiting rod close to the first magnetic unit. When the first magnetic unit is energized, the first magnetic unit and the second magnetic unit attract each other, thereby driving the limiting rod to rise, and a second elastic unit is also provided between the limiting rod and the chamber, and the second elastic unit applies a vertical downward pulling force to the push rod.

[0018] The beneficial effects of the present invention are as follows:

[0019] The utility model cooperates with the clamping component and the pushing component. After the kiln body and the kiln head are spliced, the pushing component drives each roller to move to one side of the connection end of the kiln body, and then applies a thrust toward the kiln head to the corresponding roller through each adjustment component. Then, each roller cooperates with the corresponding clamping plate to apply a clamping force toward the center of the connection between the kiln body and the kiln head, so that the kiln body and the kiln head can be sealed, and the installation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a three-dimensional view of the front side of the sealing device of the rotary kiln of the utility model;

[0021] Figure 2 This is a first cross-sectional view of the front of the sealing device of the rotary kiln of the utility model;

[0022] Figure 3 yes Figure 2 Magnified view at point A in the middle;

[0023] Figure 4 yes Figure 2 Magnified view at point B in the middle;

[0024] Figure 5 This is a second cross-sectional view of the front of the sealing device of the rotary kiln of the present invention;

[0025] Figure 6 yes Figure 5 Enlarged view at center C;

[0026] Figure 7 It is a structural view of the sealing component.

[0027] Description of reference numerals:

[0028] 1. Kiln body; 11. First sealing groove; 12. First screw hole; 2. Kiln head; 21. Mounting seat; 22. Second sealing groove; 3. Clamping component; 31. Clamping plate; 32. Push rod; 33. Roller; 34. Adjusting assembly; 341. First sleeve; 342. Second sleeve; 343. First elastic unit; 4. Pushing component; 41. Guide platform; 411. Chamber; 42. Moving platform; 421. Limiting groove; 43. Power unit; 5. Sealing component; 51. First sealing ring; 52. Second sealing ring; 53. Bolt; 6. Limiting component; 61. First magnetic unit; 62. Limiting rod; 63. Second magnetic unit; 64. Second elastic unit; 7. Second screw hole. Specific implementation plan

[0029] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. In the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other.

[0030] See also Figure 1-Figure 7 .

[0031] The utility model discloses a sealing device for a rotary kiln, comprising:

[0032] A rotatable kiln body 1;

[0033] A kiln head 2 is provided at one end of the kiln body 1 along the length direction of the kiln body 1. The kiln head 2 is used to transport materials into the kiln body 1. An annular mounting seat 21 is provided at one end of the kiln head 2 close to the kiln body 1.

[0034] Multiple clamping components 3, each clamping component 3 is distributed circumferentially on the mounting seat 21, and the clamping component 3 includes a clamping plate 31 provided on the mounting seat 21. The mounting seat 21 is also provided with a push rod 32 that slides through the clamping plate 31 along the length direction of the kiln body 1. The push rod 32 is provided with a roller 33 at one end close to the kiln body 1. The roller 33 is used to press the connecting end of the kiln body 1 toward the kiln head 2. The roller 33 and the clamping plate 31 work together to clamp the connection between the kiln body 1 and the kiln head 2;

[0035] The pushing component 4 is disposed on the mounting seat 21 and is used to drive each push rod 32 to move back and forth along the length direction of the kiln body 1 .

[0036] In specific implementation, after the kiln body 1 and the kiln head 2 are spliced, the pushing component 4 drives each push rod 32 to move until each roller 33 is tightly attached to the connecting end of the kiln body 1 and applies a thrust toward the kiln head 2. Since each clamping plate 31 is tightly attached to the connecting end of the kiln head 2, each roller 33 cooperates with the corresponding clamping plate 31 at this time to apply a clamping force toward the center of the connection between the kiln body 1 and the kiln head 2 to complete the sealing. When the kiln body 1 is working, the kiln body 1 rotates and drives each roller 33 to roll. While each roller 33 does not interfere with the operation of the kiln body 1, it still applies a thrust to the kiln body 1 toward the kiln head 2.

[0037] In the present invention, the clamping component 3 cooperates with the pushing component 4. After the kiln body 1 and the kiln head 2 are spliced ​​together, the pushing component 4 applies a thrust to the corresponding roller 33 toward the kiln head 2. Each roller 33 cooperates with the corresponding clamping plate 31 to apply a clamping force toward the center of the connection between the kiln body 1 and the kiln head 2. This can seal the kiln body 1 and the kiln head 2, and the installation is convenient.

[0038] It should be noted that a sealing layer made of high-temperature resistant materials such as alumina and graphite may be provided between the connection between the kiln body 1 and the kiln head 2 , thereby improving the sealing efficiency between the kiln body 1 and the kiln head 2 .

[0039] In one embodiment, an adjustment assembly 34 is provided at the end of the push rod 32 away from the kiln body 1, and the adjustment assembly 34 includes a first sleeve 341 arranged at the end of the push rod 32 away from the kiln body 1, and the push rod 32 is slidably arranged in the first sleeve 341, and the first sleeve 341 is connected to the pushing component 4 and has an internal thread inside. A second sleeve 342 is provided at the end of the first sleeve 341 away from the pushing component 4, and the second sleeve 342 is provided with an external thread, which is screwed with the internal thread of the first sleeve 341, and the second sleeve 342 is rotatably sleeved on the push rod 32. When the second sleeve 342 rotates, the second sleeve 342 is screwed with the first sleeve 341 and moves back and forth along the length direction of the push rod 32. A first elastic unit 343 is provided between the push rod 32 and the second sleeve 342 in the first sleeve 341, and the first elastic unit 343 applies a thrust to the push rod 32 to move toward the kiln head 2.

[0040] With this design, when the roller 33 abuts the connecting end of the kiln body 1, the pushing component 4 drives the first sleeve 341 to move toward the kiln head 2, and the first sleeve 341 drives the push rod 32 to move together through the first elastic unit 343, applying a thrust to the roller 33 in the direction toward the kiln head 2, so that the roller 33 cooperates with the clamping plate 31 and clamps the connection between the kiln body 1 and the kiln head 2; due to the manufacturing deviation of the kiln body 1 and the kiln head 2, the thickness of each part on the connecting end of the kiln body 1 is slightly different. When the thickness of the contact point between the roller 33 and the kiln body 1 is greater than the predetermined thickness, it can be compensated accordingly by the deformation of the first elastic unit 343. When the thickness of the contact point between the roller 33 and the kiln body 1 is less than the predetermined thickness, the first elastic unit 343 can make the second sleeve 342 move away from the pushing component 4, so that the clamping force on the connection between the kiln body 1 and the kiln head 2 is more balanced.

[0041] Preferably, the first elastic unit 343 can be a spring in the prior art.

[0042] In one embodiment, the kiln body 1 is further provided with a plurality of annular first sealing grooves 11 at one end near the kiln head 2. The first sealing grooves 11 are concentrically arranged and their diameters decrease from the outside to the inside. The kiln head 2 is further provided with a plurality of annular second sealing grooves 22 at one end near the kiln body 1. The second sealing grooves 22 are concentrically arranged and their diameters decrease from the outside to the inside. The first sealing grooves 11 and the second sealing grooves 22 are staggered.

[0043] A sealing component 5 is provided between the kiln body 1 and the kiln head 2. The sealing component 5 includes a plurality of second sealing rings 52 arranged on one end of the kiln body 1 close to the kiln head 2, and each second sealing ring 52 corresponds one-to-one to each second sealing groove 22. The sealing component 5 also includes a plurality of first sealing rings 51 arranged on one end of the kiln head 2 close to the kiln body 1, and each first sealing ring 51 corresponds one-to-one to each first sealing groove 11. When the kiln body 1 and the kiln head 2 are spliced ​​together, each first sealing ring 51 is inserted into the corresponding first sealing groove 11, and each second sealing ring 52 is inserted into the corresponding second sealing groove 22.

[0044] With this design, when the kiln body 1 and the kiln head 2 are spliced ​​together, the first sealing rings 51 on the kiln head 2 are inserted into the first sealing grooves 11 on the kiln body 1, and the second sealing rings 52 on the kiln body 1 are all inserted into the second sealing grooves 22 on the kiln head 2. At this time, a labyrinth-shaped gap is formed at the connection between the kiln body 1 and the kiln head 2. When the clamping assembly clamps the connection between the kiln body 1 and the kiln head 2, the first sealing rings 51 and the second sealing rings 52 can better seal the connection between the kiln body 1 and the kiln head 2.

[0045] In one embodiment, a plurality of first screw holes 12 are distributed on the kiln body 1 and the kiln head 2;

[0046] Each second sealing ring 52 is detachably arranged on the kiln body 1, and each first sealing ring 51 is detachably arranged on the kiln head 2, and a second screw hole 7 is opened at the position of the corresponding first screw hole 12 on each first sealing ring 51 and the second sealing ring 52. When each first sealing ring 51 is connected to the kiln head 2 and each second sealing ring 52 is connected to the kiln body 1, each first screw hole 12 is coaxial with and connected to the corresponding second screw hole 7. A bolt 53 is also provided in each second screw hole 7. The bolt 53 is inserted and screwed into the connection between the corresponding first screw hole 12 and the corresponding second screw hole 7. The bolt 53 is used to prevent the corresponding sealing ring from accidentally falling off from the kiln body 1 or the kiln head 2.

[0047] With this design, when the first sealing ring 51 or the second sealing ring 52 needs to be replaced, the kiln body 1 and the kiln head 2 are separated and the bolts 53 in the corresponding second screw holes 7 are removed. At this time, the restraint between the sealing ring and the kiln body 1 or the kiln head 2 is lost, and the corresponding sealing ring can be removed to complete the disassembly.

[0048] In one embodiment, the pushing component 4 includes a guide platform 41 fixed on the mounting base 21, the guide platform 41 is annular, and a movable platform 42 is slidably arranged in the guide platform 41, one side of the movable platform 42 is connected to each first sleeve 341, and a plurality of power units 43 are also provided on the mounting base 21, each power unit 43 is arranged on the side of the guide platform 41 away from the movable platform 42, and the moving end of each power unit 43 passes through the guide platform 41 and is connected to the movable platform 42, each power unit 43 is used to drive the movable platform 42 to move toward or away from the kiln body 1, thereby driving each first sleeve 341 to move toward or away from the kiln body 1.

[0049] With this design, when it is necessary to drive the roller 33 to move toward the kiln body 1, each power unit 43 drives the movable platform 42 to move toward the kiln body 1, thereby driving each first sleeve 341 to move toward the kiln body 1; when it is necessary to drive the roller 33 to move toward the kiln head 2, each power unit 43 drives the movable platform 42 to move toward the kiln head 2, thereby driving each first sleeve 341 to move toward the kiln head 2.

[0050] Preferably, the power unit 43 may adopt a cylinder in the prior art.

[0051] In one embodiment, the guide platform 41 is provided with a chamber 411, and the movable platform 42 is provided with a plurality of limiting grooves 421 distributed along the setting direction of the kiln head 2. When one of the limiting grooves 421 moves to a corresponding position of the chamber 411, the limiting groove 421 is communicated with the chamber 411.

[0052] The guide platform 41 is also provided with a limiting component 6, which includes a first magnetic unit 61 arranged at the top of the chamber 411, and the first magnetic unit 61 is connected to the external controller (not shown in the figure) by signal. A limiting rod 62 is provided below the first magnetic unit 61, and the limiting rod 62 is vertically slidably arranged in the chamber 411, and a second magnetic unit 63 is provided at one end of the limiting rod 62 close to the first magnetic unit 61. When the first magnetic unit 61 is energized, the first magnetic unit 61 and the second magnetic unit 63 attract each other, thereby driving the limiting rod 62 to rise. A second elastic unit 64 is also provided between the limiting rod 62 and the chamber 411, and the second elastic unit 64 applies a vertical downward pulling force to the push rod 32.

[0053] With this design, when adjusting the position of the roller 33, an electrical signal is applied to the first magnetic unit 61. At this time, the first magnetic unit 61 and the second unit attract each other, the push rod 32 moves upward, and the second elastic unit 64 is stretched to prevent the push rod 32 from interfering with the movement of the movable platform 42. When the roller 33 moves to the appropriate position, the power unit 43 drives the movable platform 42 to move again until the corresponding limit groove 421 is aligned with the chamber 411, and the limit groove 421 is connected to the chamber 411. At this time, the electrical signal is no longer applied to the first magnetic unit 61, and the second elastic unit 64 drives the push rod 32 to move downward after losing the constraint, so that the push rod 32 is inserted into the corresponding limit groove 421, thereby being able to limit the accidental movement of the movable platform 42 without continuously providing power to the power unit 43.

[0054] It should be noted that when the corresponding limit groove 421 is aligned with the chamber 411, if the position of the roller 33 is not in the appropriate position due to the adjustment of the movable platform 42, thereby affecting the thrust applied by the roller 33 to the kiln body 1, the elastic force of the corresponding first elastic unit 343 can be adjusted by rotating the second sleeve 342 again, thereby adjusting the thrust applied by the roller 33 to the kiln body 1 until it is adjusted to a suitable value.

[0055] It should be noted that the elastic force of the second elastic unit 64 is smaller than the magnetic force between the first magnetic unit 61 and the second magnetic unit 63, thereby ensuring that when the first magnetic unit 61 and the second magnetic unit 63 attract each other, the second elastic unit 64 will not interfere with the movement of the limit rod 62.

[0056] Preferably, the second elastic unit 64 can be a tension spring in the prior art.

[0057] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention. In addition, "multiple", "multiple groups", and "several" refer to more than two.

Claims

1. A sealing device for a rotary kiln, characterized in that: include: A rotatable kiln body (1); A kiln head (2) is provided at one end of the kiln body (1) along the length direction of the kiln body (1), and the kiln head (2) is used to transport materials into the kiln body (1). An annular mounting seat (21) is provided at one end of the kiln head (2) close to the kiln body (1); A plurality of clamping components (3), each of the clamping components (3) is circumferentially distributed on the mounting seat (21), the clamping components (3) include a clamping plate (31) arranged on the mounting seat (21), the mounting seat (21) is further provided with a push rod (32) slidingly arranged on the clamping plate (31) along the length direction of the kiln body (1), the push rod (32) is provided with a roller (33) at one end close to the kiln body (1), the roller (33) is used to press the connection end of the kiln body (1) toward the kiln head (2), and the roller (33) cooperates with the clamping plate (31) to clamp the connection between the kiln body (1) and the kiln head (2); The pushing component (4) is arranged on the mounting seat (21) and is used to drive each of the push rods (32) to move back and forth along the length direction of the kiln body (1).

2. The sealing device of the rotary kiln according to claim 1, characterized in that: The push rod (32) is provided with an adjustment assembly (34) at one end away from the kiln body (1). ， The adjusting assembly (34) includes a first sleeve (341) arranged at the end of the push rod (32) away from the kiln body (1), the push rod (32) is slidably arranged in the first sleeve (341), the first sleeve (341) is connected to the pushing component (4) and has an internal thread, and the first sleeve (341) is provided with a second sleeve (342) at the end away from the pushing component (4), and the second sleeve (342) has an external thread and is screwed with the internal thread of the first sleeve (341). The second sleeve (342) is rotatably mounted on the push rod (32). When the second sleeve (342) rotates, the second sleeve (342) and the first sleeve (341) are rotated and reciprocate along the length direction of the push rod (32). A first elastic unit (343) is provided between the push rod (32) in the first sleeve (341) and the second sleeve (342). The first elastic unit (343) applies a thrust to the push rod (32) to move toward the kiln head (2).

3. The sealing device of the rotary kiln according to claim 1, characterized in that: The kiln body (1) is provided with a plurality of annular first sealing grooves (11) at one end close to the kiln head (2), and each of the first sealing grooves (11) is concentrically arranged and has a diameter that decreases from the outside to the inside; the kiln head (2) is provided with a plurality of annular second sealing grooves (22) at one end close to the kiln body (1), and each of the second sealing grooves (22) is concentrically arranged and has a diameter that decreases from the outside to the inside; and each of the first sealing grooves (11) and each of the second sealing grooves (22) are staggered. A sealing component (5) is provided between the kiln body (1) and the kiln head (2), and the sealing component (5) includes a plurality of second sealing rings (52) arranged on one end of the kiln body (1) close to the kiln head (2), and each second sealing ring (52) corresponds one-to-one to each second sealing groove (22). The sealing component also includes a plurality of first sealing rings (51) arranged on one end of the kiln head (2) close to the kiln body (1), and each first sealing ring (51) corresponds one-to-one to each first sealing groove (11). When the kiln body (1) and the kiln head (2) are spliced, each first sealing ring (51) is inserted into the corresponding first sealing groove (11), and each second sealing ring (52) is inserted into the corresponding second sealing groove (22).

4. The sealing device of the rotary kiln according to claim 3, characterized in that: A plurality of first screw holes (12) are distributed on the kiln body (1) and the kiln head (2); Each second sealing ring (52) is detachably arranged on the kiln body (1), and each first sealing ring (51) is detachably arranged on the kiln head (2), and a second screw hole (7) is provided at the position of the corresponding first screw hole (12) on each first sealing ring (51) and the second sealing ring (52). When each first sealing ring (51) is connected to the kiln head (2) and each second sealing ring (52) is connected to the kiln body (1), each first screw hole (12) is coaxial with and connected to the corresponding second screw hole (7). A bolt (53) is also provided in each second screw hole (7). The bolt (53) is inserted and screwed into the connection between the corresponding first screw hole (12) and the corresponding second screw hole (7). The bolt (53) is used to prevent the corresponding sealing ring from accidentally falling off from the kiln body (1) or the kiln head (2).

5. The sealing device of the rotary kiln according to claim 2, characterized in that: The pushing component (4) includes a guide platform (41) fixed on the mounting seat (21), the guide platform (41) is annular, and a movable platform (42) is slidably arranged in the guide platform (41), one side of the movable platform (42) is connected to each first sleeve (341), and a plurality of power units (43) are also provided on the mounting seat (21), each power unit (43) is arranged on a side of the guide platform (41) away from the movable platform (42), and the moving end of each power unit (43) passes through the guide platform (41) and is connected to the movable platform (42), and each power unit (43) is used to drive the movable platform (42) to move toward or away from the kiln body (1), thereby driving each first sleeve (341) to move toward or away from the kiln body (1).

6. The sealing device of the rotary kiln according to claim 5, characterized in that: The guide platform (41) is provided with a chamber (411), and the movable platform (42) is provided with a plurality of limiting grooves (421) distributed along the setting direction of the kiln head (2). When one of the limiting grooves (421) moves to a corresponding position of the chamber (411), the limiting groove (421) is communicated with the chamber (411); The guide platform (41) is also provided with a limiting component (6), and the limiting component (6) includes a first magnetic unit (61) arranged at the top of the chamber (411), the first magnetic unit (61) is connected to the external controller signal, a limiting rod (62) is provided below the first magnetic unit (61), the limiting rod (62) is vertically slidably arranged in the chamber (411), and a second magnetic unit (63) is provided at one end of the limiting rod (62) close to the first magnetic unit (61), when the first magnetic unit (61) is powered on, the first magnetic unit (61) and the second magnetic unit (63) attract each other, thereby driving the limiting rod (62) to rise, and a second elastic unit (64) is also provided between the limiting rod (62) and the chamber (411), and the second elastic unit (64) applies a vertical downward pulling force to the push rod (32).

Images