Rotary kiln sealing device

Abstract

The invention provides a rotary kiln sealing device, belongs to the technical field of rotary kiln sealing, and aims to solve the problem that an existing rotary kiln is prone to gas leakage and smoking. Comprising a kiln body and a box body, a first sealing assembly and a second sealing assembly are arranged on the kiln body and the box body correspondingly, the first sealing assembly comprises a fixing plate arranged on the kiln body in a sleeving mode, a sealing movable ring is arranged on the fixing plate, the second sealing assembly comprises a sealing ring plate, an air outlet is formed in the sealing ring plate, and the end, away from the box body, of the sealing ring plate is slidably sleeved with an abutting plate; the sealing device comprises a sealing ring plate and a sealing moving ring, a propping plate is arranged on the sealing ring plate, one end of the propping plate is provided with a sealing static ring, the sealing static ring is in propping contact with the sealing moving ring through a propping device, and oil injection holes are formed in the propping plate and the sealing static ring in a penetrating mode. And the sealing moving ring, the sealing static ring and the lubricating grease are used for sealing, the sealing effect is good, and the maintenance workload is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of rotary kiln sealing, and in particular relates to a rotary kiln sealing device. Background Art

[0002] A rotary kiln is required in the process of treating mud phosphorus. The rotary kiln includes a rotatable kiln body and a box body. When the kiln body is in operation, it rotates. The material is converted into phosphorus vapor and dust after being subjected to high temperature. The phosphorus vapor enters the box body through the kiln body, and the dust is transported into the box body through the threaded structure in the kiln body. When the phosphorus vapor enters the box body, it is easy to leak at the connection between the kiln body and the box body, causing a safety accident. Based on this, the prior art uses radial sealing to seal the gap between the box body and the kiln body, mainly by installing asbestos packing in the gap between the kiln body and the box body, and setting a pressure ring to press the asbestos packing to achieve sealing.

[0003] The prior art has the following deficiencies:

[0004] When the rotary kiln is started up, the vibration of the rotary kiln is the largest, which causes gaps to appear at the sealing points even after sealing, and it is easy to leak and smoke. Summary of the invention

[0005] In view of this, the present invention provides a rotary kiln sealing device to solve the problem that the existing rotary kiln has the largest vibration at the beginning of startup, resulting in gaps at the sealing point even after sealing, which is prone to air leakage and smoke.

[0006] The technical solution adopted by the present invention is as follows:

[0007] A rotary kiln sealing device comprises a kiln body and a box body, wherein the kiln body and the box body are respectively provided with a first sealing component and a second sealing component that cooperate with each other, wherein the first sealing component comprises a fixed plate sleeved on the kiln body, wherein the fixed plate is provided with a sealing dynamic ring at one end facing the box body, and the second sealing component comprises a sealing ring plate fixed on the box body, wherein the sealing ring plate is provided with an air outlet, and the sealing ring plate surrounds the kiln body, wherein a pressing plate is slidably sleeved on one end of the sealing ring plate away from the box body, wherein a sealing static ring is provided at one end of the pressing plate facing the sealing dynamic ring, wherein the sealing static ring is in tight contact with the sealing dynamic ring through a pressing device, and wherein oil injection holes are penetrated through the pressing plate and the sealing static ring.

[0008] In this technical solution, it should be noted that the fixed plate is an annular plate structure, which is welded on the kiln body. The fixed plate rotates with the rotation of the kiln body. The sealing dynamic ring is fixed on the fixed plate to cooperate with the sealing static ring to achieve sealing. The sealing static ring is fixed on the clamping plate. The clamping plate always clamps the sealing static ring and the sealing dynamic ring together through the pressure of the clamping device. The oil filling hole is externally connected to the oil filling device, and grease is injected between the sealing dynamic ring and the sealing static ring through the oil filling hole, so that an oil film is formed between the sealing static ring and the sealing dynamic ring to improve the sealing effect; the air outlet is externally connected to the sealing Sealing water pool, phosphorus vapor passes into the water pool through the air outlet to cool, forming liquid phosphorus for collection; in this scheme, when phosphorus vapor and dust enter the box, part of the phosphorus vapor and dust will enter the gap between the sealing ring plate and the kiln body, at which time the sealing dynamic ring and the sealing static ring will seal them, and at the same time, the lubricating grease injected into the oil filling hole forms an oil film between the sealing dynamic ring and the sealing static ring, further improving the sealing effect and preventing phosphorus vapor and dust from leaking, while this part of the phosphorus vapor enters the sealing water pool through the air outlet to cool, forming liquid phosphorus. In summary, this scheme improves the traditional radial seal into an axial seal, that is, the phosphorus vapor will enter the gap between the sealing ring plate and the kiln body along the axial direction of the kiln body, and will be sealed by the sealing dynamic ring, the sealing static ring and the lubricating grease, with good sealing effect and reduced maintenance workload.

[0009] Preferably, the clamping device comprises a mounting plate, the mounting plate is fixed on the fixing plate, a clamping rod is slidably passed through the mounting plate, a nut is screwed on the clamping rod, a clamping block is provided at one end of the clamping rod, the clamping block contacts the clamping plate, a spring is sleeved on the clamping rod, one end of the spring is connected to the mounting plate, and the other end is connected to the nut on the clamping rod. There are multiple clamping devices, and the multiple clamping devices are arranged at equal intervals along the circumference of the fixing plate.

[0010] In this technical solution, it should be noted that the spring is always in a compressed state, which can give the clamping rod a pulling force in the direction away from the fixed plate, so that the clamping block at the end of the clamping rod is always pressed against the clamping plate, ensuring the sealing effect between the sealing dynamic ring and the sealing static ring.

[0011] Preferably, a first annular baffle is provided inside the sealing ring plate, a gap is formed between the first annular baffle and the side wall of the kiln body, a second annular baffle is provided on the side wall of the kiln body, the second annular baffle is located on one side of the first annular baffle, and a gap is formed between the second annular baffle and the sealing ring plate. A conveying thread is provided on the outer wall of the kiln body, and the conveying direction of the conveying thread after rotation is toward the box body.

[0012] In this technical solution, it should be noted that the number of the first annular baffle and the second annular baffle are respectively two, and they are arranged alternately. The first annular baffle and the second annular baffle can block a large amount of dust, and the blocked dust is transmitted into the box for collection through the rotation of the conveying thread on the outer wall of the kiln body.

[0013] Preferably, a static sealing device is also provided on the box body, and the static sealing device includes a first ring body, the first ring body is connected to the box body, a second ring body is connected to the side of the first ring body close to the fixed plate, and the second ring body is connected to the sealing ring plate; an annular block is provided on the side of the first ring body away from the fixed plate, a gap is provided between the annular block and the sealing ring plate, and a sealing packing is filled between the first ring body and the sealing ring plate.

[0014] In this technical solution, it should be noted that since phosphorus gas leakage is still prone to occur at the connection between the sealing ring plate and the housing, based on this, a first ring body, a second ring body, an annular block and a sealing packing are provided in this solution. Phosphorus vapor enters the space enclosed by the first ring body and the sealing ring plate from the gap between the sealing ring plate and the housing, and is blocked by the sealing packing to achieve a sealing effect.

[0015] Preferably, an oil receiving box is provided below the kiln body, and the oil receiving box is located below the sealing dynamic ring and the sealing static ring.

[0016] In this technical solution, it should be noted that the oil collecting box is provided to collect the lubricating grease dripping from between the sealing dynamic ring and the sealing static ring.

[0017] Preferably, support frames are fixed on both sides of the sealing ring plate, the support frames are in contact with the ground and are used to support the sealing ring plate, the two support frames are connected by a cross bar, a scraping sleeve is sleeved on the cross bar, a transmission rod is provided on the top of the scraping sleeve, the transmission rod is perpendicular to the abutting rod, the abutting rod can contact the transmission rod after rotating, and drive the transmission rod to move;

[0018] A pull wire is provided on one side of the scraper sleeve, the other end of the pull wire is connected to a second spring, and the other end of the second spring is connected to the support frame.

[0019] In this technical solution, it should be noted that in order to ensure the stability of the part of the kiln body close to the box body when the kiln body rotates, a support frame will be set on the sealing ring plate to support this part. Since the lubricating grease between the sealing dynamic ring and the sealing static ring will drip to the middle part of the cross bar, a large amount of viscous oil residue will accumulate in the middle of the cross bar, affecting environmental hygiene. Based on this, this solution is provided with a transmission rod and a scraper sleeve. During the rotation of the kiln body, the abutting rod on the fixed plate will be driven to rotate. After the abutting rod rotates, it will contact the transmission rod and drive the transmission rod. The movable rod moves to the left, and during the process of the transmission rod moving to the left, the scraper sleeve is driven to move to the left, so as to scrape off the oil residue attached to the center position of the cross bar, so that the oil residue falls into the oil receiving box. When the transmission rod is separated from the clamping rod, the scraper sleeve is moved to the initial position by the elastic force of the second spring to carry out the next scraping operation. In addition, in the present scheme, a pull rope is used to connect the scraper sleeve and the second spring, so that the length of the second spring does not need to be too long, that is, the second spring will not extend to the center position of the cross bar, and is not easily contaminated by the dripping oil residue in the center position of the kiln body.

[0020] Preferably, both ends of the top of the scraper sleeve are arc-shaped surfaces.

[0021] In this technical solution, it should be noted that the arc surface provided can play a role in guiding the flow, that is, when the scraper sleeve scrapes off the oil residue, the arc surface at its end will guide the oil residue on the cross bar to both sides, making it easier for the oil residue to fall into the oil collecting box.

[0022] Preferably, a bracket is provided on one side of the kiln body, the kiln body is rotatably connected to the bracket, a gear ring is arranged around the side wall of the kiln body, a motor is provided below the kiln body, and a gear meshing with the gear ring is provided at the output end of the motor.

[0023] In this technical solution, it should be noted that the motor drives the gear to rotate, and the gear rotates to drive the gear ring meshing with it to rotate, thereby realizing the rotation of the kiln body.

[0024] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0025] 1. In the present invention, the traditional radial seal is improved to an axial seal, that is, the phosphorus vapor will enter the gap between the sealing ring plate and the kiln body along the axial direction of the kiln body, and is sealed by the sealing dynamic ring, the sealing static ring and the lubricating grease, so the sealing effect is good and the maintenance workload is reduced;

[0026] 2. In the present invention, the spring is always in a compressed state, which can give the pressing rod a pulling force in a direction away from the fixed plate, so that the pressing block at the end of the pressing rod is always pressed against the pressing plate, thereby ensuring the sealing effect between the sealing dynamic ring and the sealing static ring;

[0027] 3. In the present invention, a large amount of dust can be blocked by the first annular baffle and the second annular baffle. The blocked dust is transported into the box for collection through the rotation of the conveying screw on the outer wall of the kiln body;

[0028] 4. In the present invention, a first ring body, a second ring body, an annular block and a sealing packing are provided, and phosphorus vapor enters the space enclosed by the first ring body and the sealing ring plate from the gap between the sealing ring plate and the box body, and is blocked by the sealing packing, thereby achieving a sealing effect;

[0029] 5. In the present invention, a transmission rod and a scraper sleeve are provided. During the rotation of the kiln body, the clamping rod on the fixed plate will be driven to rotate. After the clamping rod rotates, it will contact the transmission rod and drive the transmission rod to move to the left. During the movement of the transmission rod to the left, the scraper sleeve is driven to move to the left to scrape the oil residue attached to the center position of the cross bar, so that the oil residue falls into the oil receiving box. When the transmission rod is separated from the clamping rod, the scraper sleeve is moved to the initial position by the elastic force of the second spring to carry out the next scraping operation. In addition, in the present scheme, a pull rope is used to connect the scraper sleeve with the second spring, so that the length of the second spring does not need to be too long, that is. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention will now be described by way of example with reference to the accompanying drawings, in which:

[0031] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0032] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure after cutting;

[0033] Figure 3 It is a schematic diagram of the split three-dimensional structure of the kiln body and the second sealing assembly of the present invention;

[0034] Figure 4 This is a schematic diagram of the inclined three-dimensional structure after cutting of the present invention;

[0035] Figure 5 This is a schematic diagram of the three-dimensional structure when there is a support frame in Example 2 of the present invention;

[0036] Figure 6 for Figure 5 Schematic diagram of the three-dimensional structure of the middle kiln body after cutting from the side;

[0037] Figure 7 This is a schematic diagram of the three-dimensional structure of the support frame of the present invention after cutting;

[0038] Wherein: 1-box body, 2-kiln body, 3-mounting plate, 4-nut, 5-spring, 6-tightening block, 7-fixing plate, 8-sealing dynamic ring, 9-sealing static ring, 10-tightening plate, 11-oil filling hole, 12-sealing ring plate, 13-first annular baffle, 14-second annular baffle, 15-first ring body, 16-annular block, 17-sealing packing, 18-second ring body, 19-air outlet, 20-tightening rod, 21-oil receiving box, 22-bracket, 23-motor, 24-gear, 25-gear ring, 26-support frame, 27-cross bar, 28-scraper sleeve, 29-transmission rod, 30-second spring, 31-connecting rope. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0040] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features of the embodiments may be combined with each other.

[0042] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0043] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0044] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features of the embodiments may be combined with each other.

[0045] Example 1

[0046] like Figure 1-Figure 4 As shown, an embodiment of the present invention discloses a rotary kiln sealing device, including a kiln body 2 and a box body 1, wherein the kiln body 2 and the box body 1 are respectively provided with a first sealing component and a second sealing component that cooperate with each other, wherein the first sealing component includes a fixed plate 7 sleeved on the kiln body 2, and the fixed plate 7 is provided with a sealing dynamic ring 8 at one end facing the box body 1, and the second sealing component includes a sealing ring plate 12 fixed on the box body 1, and the sealing ring plate 12 is provided with an air outlet, and the sealing ring plate 12 surrounds the kiln body 2, and the sealing ring plate 12 is slidably sleeved with a clamping plate 10 at one end away from the box body 1, and a sealing static ring 9 is provided at one end of the clamping plate 10 facing the sealing dynamic ring 8, and the sealing static ring 9 is in tight contact with the sealing dynamic ring 8 through a clamping device, and oil injection holes 11 are penetrated through the clamping plate 10 and the sealing static ring 9. It should be noted that the fixed plate 7 is an annular plate structure, which is welded on the kiln body 2. The fixed plate 7 rotates with the rotation of the kiln body 2. The sealing dynamic ring 8 is fixed on the fixed plate to cooperate with the sealing static ring 9 to achieve a sealing effect. The sealing static ring 9 is fixed on the clamping plate 10. The clamping plate 10 always clamps the sealing static ring 9 and the sealing dynamic ring 8 by the pressure of the clamping device. The oil filling hole 11 is externally connected to the oil filling device, and grease is injected between the sealing dynamic ring 8 and the sealing static ring 9 through the oil filling hole 11, so that an oil film is formed between the sealing static ring 9 and the sealing dynamic ring 8 to improve the sealing effect; the air outlet is externally connected to the sealing The phosphorus gas is cooled in the water pool or cooling tower through the air outlet to form liquid phosphorus for collection. When the present scheme is implemented, after the phosphorus vapor and dust enter the box body 1, a part of the phosphorus vapor and dust will enter the gap between the sealing ring plate 12 and the kiln body 2. At this time, the sealing dynamic ring 8 and the sealing static ring 9 seal it. At the same time, the lubricating grease injected into the oil filling hole 11 forms an oil film between the sealing dynamic ring 8 and the sealing static ring 9, further improving the sealing effect and preventing the leakage of phosphorus vapor and dust. The part of the phosphorus vapor enters the sealing water pool through the air outlet for cooling to form liquid phosphorus.

[0047] like Figure 2As shown, in this embodiment, the clamping device includes a mounting plate 3, the mounting plate 3 is fixed on the fixed plate 7, a clamping rod 20 is slidably passed through the mounting plate 3, a nut 4 is screwed on the clamping rod 20, a clamping block 6 is provided at one end of the clamping rod 20, the clamping block 6 is in contact with the clamping plate 10, and a spring 5 is also sleeved on the clamping rod 20, one end of the spring 5 is connected to the mounting plate 3, and the other end is connected to the nut 4 on the clamping rod 20. There are multiple clamping devices, and the multiple clamping devices are arranged at equal intervals along the circumference of the fixed plate 7. It should be noted that the spring 5 is always in a compressed state, which can give the clamping rod 20 a pulling force in the direction away from the fixed plate 7, so that the clamping block 6 at the end of the clamping rod 20 always presses against the clamping plate 10, ensuring the sealing effect between the sealing dynamic ring 8 and the sealing static ring 9.

[0048] like Figure 2 As shown, in this embodiment, a first annular baffle 13 is provided inside the sealing ring plate 12, and a gap is formed between the first annular baffle 13 and the side wall of the kiln body 2, and a second annular baffle 14 is provided on the side wall of the kiln body 2, and the second annular baffle 14 is located on one side of the first annular baffle 13, and a gap is formed between the second annular baffle 14 and the sealing ring plate 12. A conveying thread (not shown) is provided on the outer wall of the kiln body 2, and the conveying direction of the conveying thread after rotation is toward the box body 1. It should be noted that the number of the first annular baffle 13 and the second annular baffle 14 are both two, and they are arranged alternately with each other. The first annular baffle 13 and the second annular baffle 14 can block a large amount of dust, and the blocked dust is conveyed to the box body 1 for collection through the rotation of the conveying thread on the outer wall of the kiln body 2.

[0049] like Figure 2 As shown, in this embodiment, the housing 1 is further provided with a static sealing device, which includes a first ring body 15, the first ring body 15 is connected to the housing 1, the first ring body 15 is connected to a second ring body 18 on a side close to the fixed plate 7, and the second ring body 18 is connected to the sealing ring plate 12; the first ring body 15 is provided with an annular block 16 on a side away from the fixed plate 7, there is a gap between the annular block 16 and the sealing ring plate 12, and a sealing packing 17 is filled between the first ring body 15 and the sealing ring plate 12. It should be noted that since phosphorus gas is still prone to leakage at the connection between the sealing ring plate 12 and the housing 1, based on this, the first ring body 15, the second ring body 18, the annular block 16 and the sealing packing 17 are provided in this solution, and the phosphorus vapor enters the space enclosed by the first ring body 15 and the sealing ring plate 12 from the gap between the sealing ring plate 12 and the housing 1, and is blocked by the sealing packing 17, so as to achieve a sealing effect.

[0050] Example 2

[0051] like Figure 1 As shown, this embodiment is substantially the same as the above embodiment, except that an oil receiving box 21 is provided below the kiln body 2, and the oil receiving box 21 is located below the sealing dynamic ring 8 and the sealing static ring 9. It should be noted that the oil receiving box is used to collect the lubricating grease dripping from between the sealing dynamic ring 8 and the sealing static ring 9.

[0052] like Figure 5 , Figure 6 and Figure 7 As shown, support frames 26 are fixed on both sides of the sealing ring plate 12, and the support frames 26 are in contact with the ground to support the sealing ring plate 12. The two support frames 26 are connected by a cross bar 27, and a scraper sleeve 28 is sleeved on the cross bar 27. A transmission rod 29 is provided on the top of the scraper sleeve 28. The transmission rod 29 is perpendicular to the clamping rod 20. After the clamping rod 20 is rotated, it can contact the transmission rod 29 and drive the transmission rod 29 to move; a pull wire is provided on one side of the scraper sleeve 28, and the other end of the pull wire is connected to a second spring 30, and the other end of the second spring 30 is connected to the support frame 26. It should be noted that, in order to ensure the stability of the part of the kiln body 2 close to the box body 1 when the kiln body 2 rotates, a support frame 26 is set on the sealing ring plate 12 to support this part. Since the lubricating grease between the sealing dynamic ring 8 and the sealing static ring 9 will drip to the middle part of the cross bar 27 during the oiling or operation process, a large amount of viscous oil residue will accumulate in the middle of the cross bar 27 in the long run, affecting environmental hygiene. Based on this, the present scheme is provided with a transmission rod 29 and a scraper sleeve 28. During the rotation of the kiln body 2, the abutting rod 20 on the fixed plate 7 will be driven to rotate. After the abutting rod 20 rotates, it will contact the transmission rod 29 and drive The transmission rod 29 moves to the left, and during the movement of the transmission rod 29 to the left, the scraper sleeve 28 is driven to move to the left, so as to scrape off the oil residue attached to the center position of the cross bar 27, so that the oil residue falls into the oil receiving box 21. When the transmission rod 29 is separated from the clamping rod 20, the scraper sleeve 28 is moved to the initial position by the elastic force of the second spring 30 to perform the next scraping operation. In addition, in the present scheme, a pull rope is used to connect the scraper sleeve 28 and the second spring 30, so that the length of the second spring 30 does not need to be too long, that is, the second spring 30 will not extend to the center position of the cross bar 27, and is not easily contaminated by the dripping oil residue in the center position of the kiln body 2.

[0053] like Figure 7 As shown, the two ends of the top of the scraper sleeve 28 are arc-shaped surfaces. It should be noted that the arc-shaped surfaces can play a role in guiding the flow, that is, when the scraper sleeve 28 scrapes the oil residue, the oil residue on the cross bar 27 will be guided to both sides due to the arc-shaped surfaces at the ends thereof, so that the oil residue is easier to fall into the oil receiving box 21.

[0054] like Figure 4As shown, this embodiment is substantially the same as the above embodiment, except that a bracket 22 is provided on one side of the kiln body 2, the kiln body 2 is rotatably connected to the bracket 22, a gear ring 25 is provided around the side wall of the kiln body 2, a motor 23 is provided below the kiln body 2, and a gear 24 meshing with the gear ring 25 is provided at the output end of the motor 23. It should be noted that the motor 23 drives the gear 24 to rotate, and the gear 24 rotates and drives the gear ring 25 meshing with it to rotate, thereby realizing the rotation of the kiln body 2.

[0055] The circuits, electronic components and modules involved are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by the present invention does not involve improvements to software and methods.

[0056] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0057] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A rotary kiln sealing device, characterized in that: The invention comprises a kiln body (2) and a casing (1), wherein the kiln body (2) and the casing (1) are respectively provided with a first sealing component and a second sealing component which cooperate with each other, wherein the first sealing component comprises a fixed plate (7) sleeved on the kiln body (2), and a sealing dynamic ring (8) is provided on one end of the fixed plate (7) facing the casing (1); the second sealing component comprises a sealing ring plate (12) fixed on the casing (1), and an air outlet (19) is provided on the sealing ring plate (12), and the sealing ring plate (12) surrounds the kiln body (2); a pressing plate (10) is slidably sleeved on one end of the sealing ring plate (12) away from the casing (1), and a sealing static ring (9) is provided on one end of the pressing plate (10) facing the sealing dynamic ring (8); the sealing static ring (9) is in tight contact with the sealing dynamic ring (8) through a pressing device, and oil injection holes (11) are penetrated through the pressing plate (10) and the sealing static ring (9).

2. A rotary kiln sealing device according to claim 1, characterized in that: The clamping device comprises a mounting plate (3), the mounting plate (3) being fixed on a fixing plate (7), a clamping rod (20) slidingly passing through the mounting plate (3), a nut (4) being screwed on the clamping rod (20), a clamping block (6) being provided at one end of the clamping rod (20), the clamping block (6) being in contact with the clamping plate (10), a spring (5) being sleeved on the clamping rod (20), one end of the spring (5) being connected to the mounting plate (3), and the other end being connected to the nut (4) on the clamping rod (20).

3. A rotary kiln sealing device according to claim 1, characterized in that: There are a plurality of the abutting devices, and the plurality of the abutting devices are arranged at equal intervals along the circumference of the fixing plate (7).

4. A rotary kiln sealing device according to claim 1, characterized in that: A first annular baffle (13) is provided inside the sealing ring plate (12), a gap is provided between the first annular baffle (13) and the side wall of the kiln body (2), a second annular baffle (14) is provided on the side wall of the kiln body (2), the second annular baffle (14) is located on one side of the first annular baffle (13), and a gap is provided between the second annular baffle (14) and the sealing ring plate (12).

5. A rotary kiln sealing device according to claim 4, characterized in that: A conveying screw thread is provided on the outer wall of the kiln body (2), and the conveying direction of the conveying screw thread after rotation is toward the box body (1).

6. A rotary kiln sealing device according to claim 1, characterized in that: The box body (1) is also provided with a static sealing device, the static sealing device comprising a first ring body (15), the first ring body (15) being connected to the box body (1), a second ring body (18) being connected to a side of the first ring body (15) close to the fixed plate (7), and the second ring body (18) being connected to the sealing ring plate (12); An annular block (16) is provided on the side of the first ring body (15) away from the fixed plate (7), a gap is provided between the annular block (16) and the sealing ring plate (12), and a sealing packing (17) is filled between the first ring body (15) and the sealing ring plate (12).

7. A rotary kiln sealing device according to claim 2, characterized in that: An oil receiving box (21) is provided below the kiln body (2), and the oil receiving box (21) is located below the sealing dynamic ring (8) and the sealing static ring (9).

8. A rotary kiln sealing device according to claim 7, characterized in that: Support frames (26) are fixed on both sides of the sealing ring plate (12), the support frames (26) are in contact with the ground and are used to support the sealing ring plate (12), the two support frames (26) are connected by a cross bar (27), a scraper sleeve (28) is sleeved on the cross bar (27), a transmission rod (29) is provided on the top of the scraper sleeve (28), the transmission rod (29) is perpendicular to the abutting rod (20), the abutting rod (20) can contact the transmission rod (29) after rotating, and drive the transmission rod (29) to move; A pull wire is provided on one side of the scraper sleeve (28), the other end of the pull wire is connected to a second spring (30), and the other end of the second spring (30) is connected to the support frame (26).

9. A rotary kiln sealing device according to claim 8, characterized in that: Both ends of the top of the scraper sleeve (28) are arc-shaped surfaces.

10. The rotary kiln sealing device according to claim 1, characterized in that: A bracket (22) is provided on one side of the kiln body (2), and the kiln body (2) is rotatably connected to the bracket (22). A gear ring (25) is arranged around the side wall of the kiln body (2). A motor (23) is provided below the kiln body (2), and a gear (24) meshing with the gear ring (25) is provided at the output end of the motor (23).

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