Refractory material structure of lining of rotary kiln

Abstract

The utility model relates to the technical field of seasoning processing, and discloses a rotary kiln lining refractory material structure which comprises a rotary kiln, connecting rings are fixedly connected to the surfaces of the two ends of the rotary kiln, a connecting assembly is arranged in the rotary kiln, and the connecting assembly comprises a fixing ring fixedly connected to the surface of the inner wall of one end of the rotary kiln. Guide rods are evenly and fixedly connected to the surface, close to the other end of the rotary kiln, of the fixing ring, first refractory bricks and second refractory bricks are evenly and slidably connected to the surfaces of the guide rods, and guide holes are formed in the center surfaces of the first refractory bricks and the second refractory bricks in a penetrating mode; conical grooves are oppositely formed in the surfaces of the two ends of the first refractory brick. According to the utility model, through the arrangement of the connecting assembly, the tight and stable connection between the first refractory brick and the second refractory brick is realized, the installation process is simplified, additional fixing measures are not needed, and thus the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of seasoning processing technology, and in particular to a refractory material structure for the inner lining of a rotary kiln. Background Technology

[0002] Rotary kilns are key pieces of equipment in industries such as cement and steel. Their internal temperatures are very high. To protect the kiln shell from high-temperature damage and reduce internal heat loss, refractory materials are lined to the inner wall of the rotary kiln. After lining with refractory materials, heat loss can be reduced to a very low value, allowing as much heat as possible to be used for calcining materials and improving energy utilization efficiency. Refractory materials not only provide insulation but also reduce heat loss from the rotary kiln shell.

[0003] However, the existing rotary kiln lining refractory material structure requires the use of refractory mortar to bond the refractory bricks together during installation. Therefore, the installation of refractory materials is a complex and delicate process, which is not convenient for quick installation and thus reduces work efficiency. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a rotary kiln lining refractory material structure that features easy installation and continuous, stable connections. It solves the problem that existing rotary kiln lining refractory material structures require the use of refractory mortar to bond refractory bricks together during installation, making refractory material installation a complex and delicate process that is not conducive to rapid installation and thus reduces work efficiency.

[0005] This utility model provides the following technical solution: a refractory material structure for a rotary kiln lining, comprising a rotary kiln, wherein connecting rings are fixedly connected to both ends of the rotary kiln, and a connecting assembly is provided inside the rotary kiln. The connecting assembly includes a fixing ring fixedly connected to the inner wall surface of one end of the rotary kiln, and guide rods are uniformly fixedly connected to the surface of the fixing ring near the other end of the rotary kiln. A first refractory brick and a second refractory brick are uniformly slidably connected to the surface of the guide rod. A guide hole is opened through the center surface of both the first refractory brick and the second refractory brick. Conical grooves are opened opposite each other on both ends of the first refractory brick, and conical blocks are fixedly connected opposite each other to both ends of the second refractory brick. Limiting rings are slidably connected to the inner wall surface of the rotary kiln at the end away from the fixing ring, and conical limiting blocks are uniformly fixedly connected to the surface of the limiting ring. Conical limiting grooves are uniformly opened on the surface of the rotary kiln at the end near the limiting ring.

[0006] Preferably, both the first refractory brick and the second refractory brick have a fan-shaped structure, and the second refractory brick is disposed on both sides of the first refractory brick.

[0007] Preferably, the first refractory brick and the second refractory brick are arranged in a uniform circular structure inside the rotary kiln, and the second refractory brick is slidably connected to the inside of the conical groove by conical blocks.

[0008] Preferably, both the first refractory brick and the second refractory brick are slidably connected to the surface of the guide rod through guide holes, and the end surface of the guide rod away from the fixed ring abuts against the end surface of the limiting ring near the fixed ring.

[0009] Preferably, the conical limiting blocks are all slidably connected inside the conical limiting groove, and the surfaces of the first and second refractory bricks near the limiting ring abut against the surface of the limiting ring.

[0010] Preferably, when two rotary kilns are connected, their internal limiting rings abut against each other, and the surfaces of the first and second refractory bricks near the fixing ring abut against the surface of the fixing ring.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. By setting up the connecting components, a tight and stable connection between the first and second refractory bricks is achieved, which not only enhances the overall stability of the refractory material structure, but also greatly simplifies the installation process. The workers only need to slide the first and second refractory bricks onto the guide rod in sequence according to the arrangement of the first and second refractory bricks to complete the installation. No additional fixing measures are required, thereby improving work efficiency.

[0013] 2. By using the first and second refractory bricks, both of which have a fan-shaped structure, they will form an arch under gravity. Therefore, workers only need to place the first and second refractory bricks sequentially on the guide rods according to their arrangement, and they will naturally form an arch. During maintenance, if a damaged refractory brick needs to be replaced, it can be easily removed from the arch and replaced with a new one, eliminating the need for large-scale disassembly and reconstruction of the entire refractory structure. This reduces maintenance costs and improves the reliability and service life of the equipment. Attached Figure Description

[0014] Figure 1 This is a front view of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the first refractory brick in the structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the second refractory brick in the structure of this utility model;

[0017] Figure 4This is a schematic diagram of the connecting components in the structure of this utility model.

[0018] In the diagram: 1. Rotary kiln; 2. Connecting ring; 3. Connecting assembly; 31. Fixing ring; 32. Guide rod; 33. First refractory brick; 34. Second refractory brick; 35. Guide hole; 36. Conical groove; 37. Conical block; 38. Limiting ring; 39. Conical limiting block; 30. Conical limiting groove. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1 - Figure 4 This utility model provides an embodiment of a rotary kiln lining refractory material structure, including a rotary kiln 1. Connecting rings 2 are fixedly connected to both ends of the rotary kiln 1. The connecting rings 2 are connectors connecting two or more rotary kilns 1. A connecting assembly 3 is provided inside the rotary kiln 1. The connecting assembly 3 includes a fixing ring 31 fixedly connected to the inner wall surface of one end of the rotary kiln 1, flush with one end of the rotary kiln 1. Guide rods 32 are uniformly fixedly connected to the surface of the fixing ring 31 near the other end of the rotary kiln 1. First refractory bricks 33 and second refractory bricks 34 are uniformly slidably connected to the surface of the guide rods 32. The guide rods 32 are composed of the first refractory brick 33 and the second refractory brick 34. The installation of the second refractory brick 34 serves as a guide. The center surfaces of the first refractory brick 33 and the second refractory brick 34 are both provided with guide holes 35. The two ends of the first refractory brick 33 are provided with conical grooves 36. The two ends of the second refractory brick 34 are fixedly connected with conical blocks 37. The inner wall surface of the end of the rotary kiln 1 away from the fixed ring 31 is slidably connected with a limit ring 38. The surface of the limit ring 38 is uniformly fixed with conical limit blocks 39. The surface of the rotary kiln 1 near the limit ring 38 is uniformly provided with conical limit grooves 30. The number of guide rods 32 is the same as the total number of the first refractory brick 33 and the second refractory brick 34 in one ring.

[0021] Please see Figure 1 - Figure 4The first refractory brick 33 and the second refractory brick 34 are both fan-shaped structures. The second refractory bricks 34 are all located on both sides of the first refractory brick 33. The first refractory bricks 33 and the second refractory bricks 34 are evenly arranged in a circular structure inside the rotary kiln 1. The second refractory bricks 34 are all slidably connected to the inside of the conical groove 36 through the conical block 37. The first refractory bricks 33 and the second refractory bricks 34 are all slidably connected to the surface of the guide rod 32 through the guide hole 35. The surface of the guide rod 32 away from the fixed ring 31 abuts against the limiting ring 38 near the fixed ring. On one end surface of 31, the conical limiting blocks 39 are slidably connected to the inside of the conical limiting groove 30. The surfaces of the first refractory brick 33 and the second refractory brick 34 near the limiting ring 38 abut against the surface of the limiting ring 38. When the two rotary kilns 1 are connected, their internal limiting rings 38 abut against each other, and the surfaces of the first refractory brick 33 and the second refractory brick 34 near the fixing ring 31 abut against the surface of the fixing ring 31. When the conical grooves 36 at both ends of the first refractory brick 33 engage with the conical blocks 37 fixed at both ends of the adjacent second refractory brick 34, thus... When a complete circular structure is formed, since both the first refractory brick 33 and the second refractory brick 34 are fan-shaped, they will form an arch structure under the action of gravity. The arch structure can effectively disperse and resist the pressure and stress from inside the rotary kiln 1, thereby improving the stability of the entire refractory material structure and reducing the risk of damage caused by stress concentration. Since the arch structure can distribute heat more evenly, it can reduce the damage to the first refractory brick 33 and the second refractory brick 34 caused by local overheating. At the same time, this structure also helps to improve the overall thermal efficiency of the rotary kiln 1, so that heat can be transferred to the material more effectively. After the fan-shaped first refractory brick 33 and the second refractory brick 34 form an arch, they will squeeze each other and generate a certain friction. This friction helps to improve the self-locking performance between the first refractory brick 33 and the second refractory brick 34. Even without additional fixing measures, the refractory bricks can maintain a stable arrangement and connection, thereby enhancing the integrity and stability of the entire lining structure.

[0022] Working principle: In use, the first refractory brick 33 and the second refractory brick 34 are first slidably fitted onto the guide rod 32 through the guide holes 35 in the center. During this process, the conical grooves 36 at both ends of the first refractory brick 33 and the conical blocks 37 fixed at both ends of the adjacent second refractory brick 34 engage with each other, ensuring that the refractory bricks are arranged tightly and stably, thus forming a complete circular structure. As the first refractory brick 33 and the second refractory brick 34 are installed one by one, they are arranged all the way to the other end of the rotary kiln 1, until the guide holes 35 of the last ring of the first refractory brick 33 and the second refractory brick 34 are also slidably fitted onto the guide rod 32. At this time, at the end of the rotary kiln 1 away from the fixed ring 31, the limiting ring 38 is inserted. The conical limiting block 39 is engaged in the conical limiting groove 30 on the surface of the rotary kiln 1 to ensure the stable installation of the limiting ring 38. At the same time, the surface of the limiting ring 38 near the fixing ring 31 abuts against the end of the guide rod 32, further fixing the entire refractory material structure. During this process, the surfaces of the first refractory brick 33 and the second refractory brick 34 near the limiting ring 38 are tightly abutted against the inner surface of the limiting ring 38, while the refractory bricks near the fixing ring 31 are tightly abutted against the surface of the fixing ring 31, forming a complete and tight inner lining structure. When it is necessary to connect two rotary kilns 1, it is only necessary to abut their limiting rings 38 against each other to ensure the continuity and stability of the refractory material structure inside the two rotary kilns 1.

Claims

1. A structure of lining refractory material in a rotary kiln, comprising a rotary kiln (1), characterized in that: Both end surfaces of the rotary kiln (1) are fixedly connected with connecting rings (2), and the rotary kiln (1) is internally provided with a connecting assembly (3); The connecting assembly (3) comprises a fixed ring (31) fixedly connected to the inner wall surface of one end of the rotary kiln (1), the surface of the fixed ring (31) near the other end of the rotary kiln (1) is uniformly fixedly connected with guide rods (32), the surfaces of the guide rods (32) are uniformly slidably connected with first refractory bricks (33) and second refractory bricks (34), the central surfaces of the first refractory bricks (33) and the second refractory bricks (34) are both provided with guide holes (35), the surfaces of the two ends of the first refractory bricks (33) are both oppositely provided with tapered grooves (36), the surfaces of the two ends of the second refractory bricks (34) are both oppositely fixedly connected with tapered blocks (37), the inner wall surfaces of the one end of the rotary kiln (1) away from the fixed ring (31) are slidably connected with limiting rings (38), the surfaces of the limiting rings (38) are uniformly fixedly connected with tapered limiting blocks (39), and the surfaces of the one end of the rotary kiln (1) near the limiting rings (38) are uniformly provided with tapered limiting grooves (30).

2. A rotary kiln lining structure according to claim 1, characterised in that: Both the first refractory bricks (33) and the second refractory bricks (34) are in a fan-shaped structure, and the second refractory bricks (34) are arranged on the two sides of the first refractory bricks (33).

3. A rotary kiln lining structure according to claim 2, characterised in that: The first refractory bricks (33) and the second refractory bricks (34) are arranged in a circular structure in the rotary kiln (1), and the second refractory bricks (34) are slidably connected in the tapered grooves (36) through the tapered blocks (37).

4. A rotary kiln lining structure according to claim 1, wherein: The first refractory bricks (33) and the second refractory bricks (34) are slidably connected to the surfaces of the guide rods (32) through the guide holes (35), and the surfaces of the one end of the guide rods (32) away from the fixed ring (31) abut against the surfaces of the one end of the limiting rings (38) near the fixed ring (31).

5. A rotary kiln lining structure according to claim 1, wherein: The tapered limiting blocks (39) are slidably connected in the tapered limiting grooves (30), and the surfaces of the first refractory bricks (33) and the second refractory bricks (34) near the limiting rings (38) abut against the surfaces of the limiting rings (38).

6. A rotary kiln lining structure according to claim 1 wherein: When the two rotary kilns (1) are connected, the limiting rings (38) in the rotary kilns (1) abut against each other, and the surfaces of the first refractory bricks (33) and the second refractory bricks (34) near the fixed ring (31) abut against the surface of the fixed ring (31).

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