A kiln tail sealing device

Abstract

This utility model relates to the field of sealing structure technology, specifically to a kiln tail sealing device, including a tail box located at the tail of a rotary kiln body. A support ring is provided at the connection between the tail box and the rotary kiln body, and a support spring is provided between the support ring and the tail box. A follower ring is provided on the side of the rotary kiln body, and a clamping ring is provided above the follower ring. The clamping ring is sleeved on the side of the rotary kiln body, and a roller is provided between the clamping ring and the follower ring. A clamping device is provided between the clamping ring and the support ring. This invention solves the problems of air leakage and material leakage existing in the original kiln tail sealing device, reduces coal consumption, stabilizes the temperature of the calcination system, and improves product quality.

Description

Technical Field

[0001] This utility model relates to the field of sealing structure technology, specifically to a kiln tail sealing device. Background Technology

[0002] In recent years, rotary kilns have become the most widely used calcining equipment in industries such as building materials, metallurgy, mining, and chemicals due to their robust structure, stable operation, and high-quality products. In the cement industry, the rotary kiln is a core piece of equipment for cement production enterprises, and its operational efficiency plays a crucial role in the entire cement production process and the economic benefits of the factory.

[0003] The original design of the kiln tail seal in the 12000t / d new dry-process cement rotary kiln used a cylinder pressure plate type seal (rotary kiln model φ6.2*92 meters). Since the production line was put into operation, the kiln tail seal has had problems. In the early stage of kiln operation, air and material leakage occurred at the kiln tail. As the production operation time increased, the sealing pressure plate wore down, and the sealing frame shifted and deformed, causing air and material leakage to become more serious. A large amount of cold air leaked into the rotary kiln, resulting in increased coal consumption, temperature fluctuations in the calcination system, and fluctuations in product quality. In addition, after material leakage, a large number of people need to be organized to clean it up. After each start-up and shutdown of the kiln, a large amount of manpower is required for cleaning, which also affects the on-site environmental hygiene. Therefore, this technical solution is proposed for improvement. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the poor sealing effect of the kiln tail in the existing dry process cement rotary kiln during use, and to provide a kiln tail sealing device.

[0005] To achieve the above objectives, this utility model embodiment adopts the following technical solution: a kiln tail sealing device, including a tail box disposed at the tail of a rotary kiln body, a support ring disposed at the connection between the tail box and the rotary kiln body, a support spring disposed between the support ring and the tail box, a follower ring disposed on the side of the rotary kiln body, a clamping ring disposed above the follower ring, the clamping ring being sleeved on the side of the rotary kiln body, a roller disposed between the clamping ring and the follower ring, and a clamping device disposed between the clamping ring and the support ring.

[0006] Furthermore, the roller is positioned above the follower ring, and the bottom of the roller abuts against the upper part of the follower ring.

[0007] Furthermore, positioning posts are provided at the bottom of the support ring and the top of the tail box, with a gap between the positioning posts, and the support spring is wound around the outside of the positioning posts.

[0008] Furthermore, a fixing ring is provided between the support ring and the follower ring, the fixing ring is fixedly connected to the support ring, and a sealing ring is provided between the fixing ring and the follower ring.

[0009] Furthermore, the clamping device includes a connecting rod that passes through the support ring and the clamping ring, a clamping spring is provided at the bottom of the connecting rod, and the top of the clamping spring abuts against the support ring.

[0010] Furthermore, an adjusting spring for adjusting the length of the connecting rod is provided on the upper part of the clamping ring.

[0011] The beneficial effects of this utility model embodiment are as follows: the follower ring can move synchronously with the rotation of the rotary kiln, ensuring the continuity of the seal. A clamping ring is set above the follower ring, and a clamping device is set between the clamping ring and the support ring to enhance the tightness of the seal. The clamping device includes a connecting rod that passes through the support ring and the clamping ring. The connecting rod plays the role of connecting and transmitting force. A clamping spring is set at the bottom of the connecting rod, and the top of the clamping spring abuts against the support ring. Through the elastic force of the clamping spring, the clamping ring is always subjected to downward pressure, thereby ensuring close contact between the clamping ring and the follower ring, further improving the sealing effect. By adjusting the force of the connecting rod to control the extension and contraction of the adjusting spring, the effective length of the connecting rod can be changed, thereby adjusting the position and pressure of the clamping ring. This allows the sealing device to be flexibly adjusted according to the actual situation, ensuring that the sealing performance is always in the best state. This effectively solves the problems of air leakage and material leakage existing in the original kiln tail sealing device, reduces coal consumption, stabilizes the temperature of the calcination system, improves product quality, and reduces cleaning workload and impact on the site environment, resulting in significant economic and social benefits. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a top view of the follower ring of this utility model.

[0014] Figure 3 This is a schematic diagram of the clamping device of this utility model;

[0015] In the diagram: 1. Tail box; 101. Support ring; 102. Positioning pin; 103. Support spring; 104. Fixing ring; 105. Sealing ring; 2. Rotary kiln body; 201. Pressure ring; 202. Roller; 3. Connecting rod; 301. Clamping spring; 4. Follower ring. Detailed Implementation

[0016] The preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely for explaining the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0017] See Figures 1 to 3 This utility model discloses a kiln tail sealing device, mainly including a tail box 1 located at the tail of the rotary kiln body 2. A support ring 101 is provided at the connection between the tail box 1 and the rotary kiln body 2. The support ring 101 plays an important role in support and connection. To ensure a stable connection and elastic support between the support ring 101 and the tail box 1, a support spring 103 is provided between the support ring 101 and the tail box 1. Positioning posts 102 are provided at the bottom of the support ring 101 and the top of the tail box 1, with a certain interval between the positioning posts 102. The support spring 103 is wrapped around the outside of the positioning posts 102. This design allows the support spring 103 to stably play an elastic support role under the guidance of the positioning posts 102, effectively buffering the vibration and displacement generated during the operation of the rotary kiln and maintaining the stability of the sealing device.

[0018] A follower ring 4 is installed on the side of the rotary kiln body 2. The follower ring 4 moves synchronously with the rotation of the rotary kiln, ensuring the continuity of the seal. A clamping ring 201 is installed above the follower ring 4. The clamping ring 201 is fitted onto the side of the rotary kiln body 2. Through reasonable size design and installation method, the clamping ring 201 does not rotate with the rotary kiln body 2, ensuring that the clamping ring 201 can fit tightly with the rotary kiln body 2. A roller 202 is installed between the clamping ring 201 and the follower ring 4. The roller 202 is positioned above the follower ring 4, and the bottom of the roller 202 abuts against the upper part of the follower ring 4, which reduces the friction between the clamping ring 201 and the follower ring 4. At the same time, by applying pressure to the follower ring 4, the sealing state between the follower ring 4 and the support ring 101 can be adjusted, improving the performance. The use of roller 202 reduces the resistance when the rotary kiln rotates while ensuring the sealing effect, reducing energy loss and improving the operating efficiency of the equipment.

[0019] To further improve sealing performance, a fixed ring 104 is provided between the support ring 101 and the follower ring 4. The fixed ring 104 is fixedly connected to the support ring 101 to ensure the stability of the fixed ring 104 and improve the sealing effect. A sealing ring 105 is provided between the fixed ring 104 and the follower ring 4. The sealing ring 105 is made of high-temperature resistant and wear-resistant material, which can effectively prevent the leakage of gas and materials inside the kiln. The sealing ring 105 fits tightly between the fixed ring 104 and the follower ring 4. As the rotary kiln operates, the sealing ring 105 can adaptively adjust to maintain a good sealing state.

[0020] A clamping device is provided between the clamping ring 201 and the support ring 101 to enhance the tightness of the seal. The clamping device includes a connecting rod 3 that passes through the support ring 101 and the clamping ring 201. The connecting rod 3 serves to connect and transmit force. A clamping spring 301 is provided at the bottom of the connecting rod 3. The top of the clamping spring 301 abuts against the support ring 101. Through the elastic force of the clamping spring 301, the clamping ring 201 is always subjected to downward pressure, thereby ensuring close contact between the clamping ring 201 and the follower ring 4, further improving the sealing effect. To facilitate the adjustment of the length of the connecting rod 3 and thus the pressure of the clamping ring 201, and to adjust the sealing effect between the follower ring 4 and the sealing ring 105 to adapt to the sealing requirements under different working conditions, an adjusting spring is provided at the upper part of the clamping ring 201. By adjusting the force of the connecting rod 3 to control the extension and retraction of the adjusting spring, the effective length of the connecting rod 3 can be changed, thereby adjusting the position and pressure of the clamping ring 201. This allows the sealing device to be flexibly adjusted according to actual conditions, ensuring that the sealing performance is always at its best. This effectively solves the problems of air leakage and material leakage in the original kiln tail sealing device, reduces coal consumption, stabilizes the temperature of the calcination system, and improves product quality. At the same time, it reduces the amount of cleaning work and the impact on the site environment, resulting in significant economic and social benefits.

[0021] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.

[0024] The technical solution of this utility model has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A kiln seal apparatus comprising a tailbox disposed at the tail end of a rotary kiln body, characterised in that: A support ring is provided at the connection between the tail box and the rotary kiln body. A support spring is provided between the support ring and the tail box. A follower ring is provided on the side of the rotary kiln body. A clamping ring is provided above the follower ring. The clamping ring is sleeved on the side of the rotary kiln body. A roller is provided between the clamping ring and the follower ring. A clamping device is provided between the clamping ring and the support ring.

2. The kiln seal apparatus of claim 1, wherein: The roller is positioned above the follower ring, and the bottom of the roller abuts against the upper part of the follower ring.

3. The kiln seal apparatus of claim 1, wherein: Positioning posts are provided at the bottom of the support ring and the top of the tail box, with a gap between the positioning posts, and the support spring is wrapped around the outside of the positioning posts.

4. The kiln seal apparatus of claim 1, wherein: A fixing ring is provided between the support ring and the follower ring, the fixing ring is fixedly connected to the support ring, and a sealing ring is provided between the fixing ring and the follower ring.

5. The kiln seal apparatus of claim 1, wherein: The clamping device includes a connecting rod that passes through the support ring and the clamping ring. A clamping spring is provided at the bottom of the connecting rod, and the top of the clamping spring abuts against the support ring.

6. The kiln tail sealing device according to claim 5, characterized in that: The upper part of the clamping ring is provided with an adjusting spring for adjusting the length of the connecting rod.

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