Furnace roller distribution structure suitable for kiln production

Abstract

The utility model discloses a furnace roller distribution structure suitable for kiln production, which comprises a kiln, a preheating area at the front part of the kiln is divided into a heating section and a stable section according to a preset temperature curve, a plurality of solid roller bars which are arranged in sequence are arranged in a junction area of the heating section and the stable section in the preheating area of the kiln, and the solid roller bars are connected with the heating section and the stable section. The kiln is provided with a plurality of hollow rollers which are arranged in sequence in other areas except the junction area in the preheating area; by selecting the solid rollers in the junction area with severe temperature change, stable operation of the kiln can be better ensured, production accidents caused by breakage of the rollers are reduced, the stability and reliability of the whole technological process are ensured, and the product quality and the production efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of kiln structure, and in particular to a kiln roller distribution structure suitable for kiln production. Background Technology

[0002] Currently, existing kilns are typically divided into preheating zone, high-temperature zone, heat preservation zone, and rapid cooling zone along their conveying direction. In the preheating zone, the temperature rises sharply from a low temperature along the material feeding direction, reaching its highest temperature in the middle and rear of the preheating zone. The existing kiln rollers use a hollow roller structure, which is widely used due to its light weight and low cost. However, the material reacts with heat in the kiln, especially a type of corrosive substance on the surface of the material, which falls off and drips onto the rollers in the middle and rear of the preheating section. This corrosion seeps into the hollow rollers, causing the risk of roller breakage. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a furnace roller distribution structure suitable for kiln production.

[0004] To achieve the above objectives, this utility model provides a kiln roller distribution structure suitable for kiln production, including a kiln. The preheating zone at the front of the kiln is divided into a heating section and a stable section according to a predetermined temperature curve. In the preheating zone of the kiln, a number of solid rollers arranged in sequence are provided in the boundary area between the heating section and the stable section. In the other areas of the preheating zone, except for the boundary area, a number of hollow rollers arranged in sequence are provided.

[0005] Furthermore, the solid roller bar has a solid roller body structure inside.

[0006] Furthermore, the hollow roller has a central roller structure inside, wherein an axially extending hollow channel is formed inside the hollow roller.

[0007] Furthermore, the number of solid rollers installed in the boundary area between the heating section and the stable section of the kiln is less than the number of hollow rollers installed in the rest of the kiln.

[0008] Furthermore, the kiln has 30 solid rollers arranged in sequence in the boundary area, and 80 hollow rollers arranged in sequence in the front part of the boundary area.

[0009] Furthermore, the temperature of the stable section is 890-910℃.

[0010] The present invention adopts the above-mentioned solution, and its beneficial effects are as follows: by selecting solid rollers in the boundary area where temperature changes drastically, it can better ensure the stable operation of the kiln, reduce production accidents caused by roller breakage, ensure the stability and reliability of the entire process, and improve product quality and production efficiency. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the kiln area.

[0012] Figure 2 This is a schematic diagram of a solid roller.

[0013] Figure 3 This is a schematic diagram of a hollow roller.

[0014] Wherein, A-preheating zone, A1-boundary zone, A2-other zones, 10-solid roller, 20-hollow roller, 21-hollow channel. Detailed Implementation

[0015] To facilitate understanding of this utility model, it will now be described more fully with reference to the accompanying drawings. The drawings illustrate preferred embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0016] See appendix Figure 1-3 As shown in this embodiment, a kiln roller distribution structure suitable for kiln production includes a kiln. In view of the risk of roller breakage in the rear part of the preheating zone, the preheating zone A at the front of the kiln in this embodiment is divided into a heating section and a stable section according to a predetermined temperature curve. The boundary area A1 between the heating section and the stable section corresponds exactly to the position where the preheating zone A reaches the highest temperature.

[0017] In this embodiment, the kiln has several solid rollers 10 arranged in sequence in the boundary region A1 between the heating section and the stable section. Each solid roller 10 has a solid roller body structure. In the preheating zone A of the kiln, excluding the boundary region A1, several hollow rollers 20 are arranged in sequence in the remaining region A2. Each hollow roller 20 has a central roller body structure and an axially extending hollow channel 21 formed inside. Although the solid rollers 10 are heavier than the hollow rollers 20, their structural strength and fracture resistance are far superior, giving the solid rollers 10 a significant advantage in a specific region of the kiln (the boundary region A1 between the heating section and the stable section). In this region, the temperature inside the kiln is undergoing significant changes, gradually transitioning from the heating stage to the stable stage. This temperature change brings significant thermal stress to the rollers, as well as corrosive substances dripping from the heated material onto the roller surface, causing corrosion. Because the solid roller bar 10 has a solid roller body structure and no hollow channel 21, its overall structure is more stable, and it can withstand greater thermal stress and has better impermeability and is less prone to breakage.

[0018] In contrast, hollow rollers 20 are used in other areas of the preheating zone A. Their internal hollow channel design 21 is beneficial for the uniform distribution and rapid transfer of heat, but their structural strength is relatively weak, and their fracture resistance is not as good as that of solid rollers 10. Therefore, in the boundary zone A1 where temperature changes drastically, choosing solid rollers 10 can better ensure the stable operation of the kiln and reduce production accidents caused by roller breakage.

[0019] Furthermore, the combined use of solid rollers 10 and hollow rollers 20 demonstrates the ingenuity of the kiln design. Using solid rollers 10 in areas requiring high thermal stress and corrosion resistance, while using hollow rollers 20 in areas with relatively stable temperatures, ensures both safe kiln operation and efficient heat transfer and uniform distribution, thereby improving production efficiency and stability.

[0020] In this embodiment, the number of solid rollers 10 set in the boundary area A1 between the heating section and the stable section of the kiln is less than the number of hollow rollers 20 set in the other areas A2 of the kiln. Specifically, the kiln has 30 solid rollers 10 arranged in sequence in the boundary area A1, and 80 hollow rollers 20 arranged in sequence in the front section of the boundary area A1. The kiln can set an appropriate number of hollow rollers 20 in the rear section of the boundary area A1 according to actual needs. No specific limitation is made here, and those skilled in the art can choose as needed.

[0021] In this embodiment, when the temperature of the stable section is set to 890-910℃, considering the potential temperature fluctuations in the boundary region A1 between the heating section and the stable section, especially when the maximum temperature is slightly higher than 910℃, the selection of the roller becomes particularly important. Therefore, the use of a solid roller 10 in the boundary region A1 is based on the following considerations:

[0022] 1. High temperature resistance: Solid rollers 10 generally have higher high temperature resistance, and can maintain stable physical and chemical properties in high temperature environments, thus ensuring normal operation even when the temperature fluctuates.

[0023] 2. Structural stability: Compared with other types of rollers (such as hollow rollers 20), solid roller 10 has stronger structural stability and mechanical strength, and can maintain stable shape and performance under high temperature and high pressure.

[0024] 3. Wear resistance: Under high-temperature environments, materials are susceptible to wear and corrosion. Solid rollers 10 are typically made of materials with good wear resistance, enabling them to maintain good performance during long-term use.

[0025] In conclusion, using solid rollers 10 in the boundary region A1 between the heating and stabilization sections is a reasonable and effective choice. It can ensure the stability and reliability of the entire process and improve product quality and production efficiency.

[0026] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any way. Any modifications or alterations made by those skilled in the art to the technical solution of this utility model without departing from its scope are equivalent embodiments of this utility model. Therefore, all equivalent changes made based on the concept of this utility model without departing from its scope should be covered within the protection scope of this utility model.

Claims

1. A roller distribution structure suitable for use in a kiln, comprising a kiln, characterised in that: The preheating zone (A) of the kiln front part is divided into a temperature rising section and a stable section according to a predetermined temperature curve, wherein the preheating zone (A) of the kiln is provided with a plurality of solid roller bars (10) arranged in sequence at the junction area (A1) between the temperature rising section and the stable section, and the kiln is provided with a plurality of hollow roller bars (20) arranged in sequence at the remaining area (A2) of the preheating zone (A) except the junction area (A1).

2. A roller distribution structure for use in a kiln according to claim 1, characterized in that: The solid roller bar (10) is internally provided with a solid roller body structure.

3. A roller distribution structure for use in a kiln according to claim 1, characterized in that: The hollow roller bar (20) is internally provided with a central roller body structure, wherein the hollow roller bar (20) is internally formed with an axially extending hollow channel (21).

4. The roller distribution structure for use in a kiln according to claim 1, wherein: The number of the solid roller bars (10) arranged at the junction area (A1) between the temperature rising section and the stable section is less than the number of the hollow roller bars (20) arranged at the remaining area (A2) of the kiln.

5. A roller distribution structure for use in a kiln according to claim 1, characterized in that: The kiln is provided with 30 solid roller bars (10) arranged in sequence at the junction area (A1), and the kiln is provided with 80 hollow roller bars (20) arranged in sequence at the front section of the junction area (A1).

6. A roller distribution structure for use in a kiln according to claim 1, characterized in that: The temperature of the stable section is 890-910℃.

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