Fiber furnace roller for high-temperature annealing furnace

Abstract

The fiber furnace roller for the high-temperature annealing furnace comprises a roller body and a limiting rotating shaft, the upper ends of the front side and the rear side of the roller body are each provided with an upper limiting shell used for keeping the roller body limited, and the roller body comprises a roller face, an outer heat-resisting layer, a first silicon carbide fiber layer and a core column. The roller body is provided with a roller surface, the inner side of the roller surface is provided with a group of outer heat-resisting layers used for high-temperature blocking of the high-temperature annealing furnace, and rock wool materials are stored in the outer heat-resisting layers. The outer heat-resistant layer and the inner heat-resistant layer can keep a heat insulation state for the core column, and meanwhile, the silicon carbide fiber layer I and the silicon carbide fiber layer II can keep good mechanical properties in the outer heat-resistant layer and the inner heat-resistant layer under a high-temperature condition, so that the roller body is prevented from being deformed in the use process, and the actual use is not influenced.

Description

Technical Field

[0001] This utility model belongs to the field of fiber furnace roller technology, and relates to a fiber furnace roller for high-temperature annealing furnaces. Background Technology

[0002] In high-temperature annealing furnaces, fiber furnace rollers suffer from insufficient strength due to their material properties. Fiber furnace rollers are typically made of ceramic fibers, a material that gradually loses its mechanical strength under high temperatures, especially when exposed to prolonged exposure to high temperatures and chemical corrosion. Due to their structural characteristics, fiber furnace rollers are prone to deformation under heavy loads and thermal stress, directly affecting the uniform processing of materials within the furnace and the service life of the rollers. Fiber furnace rollers are also susceptible to oxidation and thermal expansion at high temperatures, leading to dimensional instability and consequently affecting the uniformity of temperature distribution within the furnace.

[0003] These drawbacks are primarily due to the inherent material properties of fiber furnace rollers. While ceramic fibers possess excellent heat resistance and insulation, their physical properties at high temperatures are not ideal, including relatively weak tensile strength, compressive strength, and creep resistance. Furthermore, the fiber structure is easily damaged at high temperatures, leading to a decline in material performance. Conventional solutions include replacing the fiber rollers with more heat-resistant materials or surface-treating them to improve their heat resistance. However, these methods also have drawbacks. Using more heat-resistant materials may increase costs and may require modifications to the furnace structure to accommodate the new material, but the effectiveness is limited, and even treated rollers may still experience performance degradation over long-term use. Therefore, there is an urgent need for a fiber furnace roller specifically designed for high-temperature annealing furnaces to address these issues. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a fiber furnace roller for high-temperature annealing furnace, so as to solve the problems mentioned in the background art.

[0005] This utility model is achieved through the following technical solution: a fiber furnace roller for a high-temperature annealing furnace, comprising: a roller body and a limiting shaft, wherein a set of upper limit shells for keeping the roller body in a limited position are provided on the upper ends of both the front and rear sides of the roller body;

[0006] The roller body includes a roller surface, an outer heat-resistant layer, a silicon carbide fiber layer, an inner fastening partition, and a core column. The inner side of the roller surface is provided with an outer heat-resistant layer for high-temperature isolation in the high-temperature annealing furnace. Rock wool material is stored inside the outer heat-resistant layer. A silicon carbide fiber layer is provided in the middle of the outer heat-resistant layer for blocking the temperature of the high-temperature annealing furnace. The silicon carbide fiber layer has a wave-like cross-section when viewed from above. The silicon carbide fiber layer is distributed in a ring structure inside the outer heat-resistant layer.

[0007] In a preferred embodiment, the inner side of the outer heat-resistant layer is provided with a set of inner fastening partitions for maintaining the tight and stable filling inside the roller. The inner fastening partitions are a type of metal roll liner. The inner side of the inner fastening partitions is provided with an inner heat-resistant layer. When the roller is used by the operator in the high-temperature annealing furnace, when the roller surface comes into contact with the externally guided workpiece in a high-temperature environment, the outer heat-resistant layer and the inner heat-resistant layer can maintain the temperature insulation state of the core column. At the same time, the silicon carbide fiber layer one and the silicon carbide fiber layer two can maintain good mechanical properties inside the outer heat-resistant layer and the inner heat-resistant layer under high-temperature conditions, thereby ensuring that the roller will not deform during use and affect actual use.

[0008] In a preferred embodiment, the inner heat-resistant layer and the outer heat-resistant layer have the same specifications and are both filled with rock wool material. The inner heat-resistant layer has a set of silicon carbide fiber layers in the middle to block the temperature of the high-temperature annealing furnace.

[0009] In a preferred embodiment, the silicon carbide fiber layer one and the silicon carbide fiber layer two have the same specifications, and the inner heat-resistant layer is provided with an embedded positioning layer for positioning and interlocking with the embedded head.

[0010] In a preferred embodiment, the inner side of the embedded positioning layer is provided with a plurality of inner grooves for positioning with the embedded head. The plurality of inner grooves are evenly distributed, and the interior of each set of inner grooves is fitted and connected to a set of embedded heads.

[0011] In a preferred embodiment, a set of core columns for maintaining rotational stability and improving the support strength of the roller surface are provided on the inner side of several sets of embedded heads. The core columns and several sets of embedded heads are an integral structure. Each set of upper limit housings has a set of bearing seats for maintaining the positioning and rotation of the roller body. When the roller body is in actual use, its core columns and several sets of embedded heads can maintain tight engagement with the embedded positioning layer, while ensuring that the roller body remains stable during rotation and ensuring the strength of the roller body itself, so as to be used stably in extreme high temperature environments.

[0012] In a preferred embodiment, the bearing housing is provided with a set of inner limiting bearings for maintaining the stable rotation of the roller body. The inner side of the inner limiting bearing is provided with a set of limiting rotating shafts for maintaining the connection and fixation with the roller body. Each set of limiting rotating shafts is provided on the front and rear sides of the roller body and is an integral structure with the roller body.

[0013] After adopting the above technical solution, the beneficial effects of this utility model are: when the roller surface of the roller body comes into contact with the external conveying workpiece in a high-temperature environment, its outer heat-resistant layer and inner heat-resistant layer can keep the core column in a heat-insulating state. At the same time, its silicon carbide fiber layer one and silicon carbide fiber layer two can maintain good mechanical properties inside the outer heat-resistant layer and inner heat-resistant layer under high-temperature conditions, thereby ensuring that the roller body will not deform during use and affect actual use.

[0014] Its core column and several sets of embedded heads can maintain a tight engagement with the embedded positioning layer, while ensuring the stability of the roller body during rotation and ensuring the strength of the roller body itself, so as to be used stably in extreme high temperature environments. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a top view of the right side of a fiber furnace roller for a high-temperature annealing furnace according to the present invention.

[0017] Figure 2 This is a top view of the right side of the roller body in a fiber furnace roller for a high-temperature annealing furnace according to the present invention.

[0018] Figure 3 This is a schematic diagram of the left side view of the internal structure of the fiber furnace roller for a high-temperature annealing furnace according to the present invention.

[0019] Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point A in the middle;

[0020] In the diagram: 100 - Roller body, 110 - Upper limit housing, 120 - Bearing seat, 130 - Base, 140 - Limiting shaft;

[0021] 10a-Roller surface, 10b-Outer heat-resistant layer, 10c-Silicon carbide fiber layer one, 10d-Inner fastening partition, 10e-Silicon carbide fiber layer two, 10f-Inner positioning layer, 10g-Inner head, 10h-Core column. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1-4 A fiber furnace roller for a high-temperature annealing furnace includes: a roller body 100 and a limiting rotating shaft 140. The upper ends of the front and rear sides of the roller body 100 are provided with a set of upper limit shells 110 for keeping the roller body 100 in a limited position.

[0024] The roller body 100 includes a roller surface 10a, an outer heat-resistant layer 10b, a silicon carbide fiber layer 10c, an inner fastening partition 10d, and a core column 10h. The inner side of the roller surface 10a is provided with an outer heat-resistant layer 10b for high-temperature isolation in the high-temperature annealing furnace. Rock wool material is stored inside the outer heat-resistant layer 10b. A silicon carbide fiber layer 10c for blocking the temperature of the high-temperature annealing furnace is provided in the middle of the outer heat-resistant layer 10b. The silicon carbide fiber layer 10c has a wave-like cross-section when viewed from above. The silicon carbide fiber layer 10c is distributed in a ring structure inside the outer heat-resistant layer 10b.

[0025] The inner side of the outer heat-resistant layer 10b is provided with a set of inner fastening partitions 10d for keeping the internal filling of the roller body 100 tight and stable. The inner fastening partition 10d is a metal coiled inner liner, and the inner side of the inner fastening partition 10d is provided with a set of inner heat-resistant layers.

[0026] Please see Figures 1-4 As the first embodiment of this utility model: when the roller 100 is used by the operator inside the high-temperature annealing furnace, when the roller surface 10a of the roller 100 comes into contact with the externally guided workpiece in a high-temperature environment, the outer heat-resistant layer 10b and the inner heat-resistant layer can keep the core column 10h in a heat-insulating state. At the same time, the silicon carbide fiber layer 10c and the silicon carbide fiber layer 10e can maintain good mechanical properties inside the outer heat-resistant layer 10b and the inner heat-resistant layer under high-temperature conditions, so as to ensure that the roller 100 will not deform during use and affect the actual use.

[0027] The inner heat-resistant layer and the outer heat-resistant layer 10b have the same specifications and are both filled with rock wool material. The inner heat-resistant layer has a set of silicon carbide fiber layer 10e in the middle to block the temperature of the high-temperature annealing furnace.

[0028] The silicon carbide fiber layer 10c and the silicon carbide fiber layer 10e have the same specifications. The inner heat-resistant layer has an embedded positioning layer 10f for positioning and fitting with the embedded head 10g.

[0029] The inner side of the embedded positioning layer 10f is provided with several sets of inner grooves for positioning with the embedded head 10g. The sets of inner grooves are evenly distributed, and each set of inner grooves is interlocked with a set of embedded heads 10g.

[0030] Please see Figures 1-4 As a second embodiment of this utility model: Based on the description in the above embodiments, further, a set of core pillars 10h are provided on the inner side of several sets of embedded heads 10g to maintain rotational stability and improve the support strength of the roller surface 10a. The core pillars 10h and several sets of embedded heads 10g are an integral structure. Each set of upper limit shells 110 is provided with a set of bearing seats 120 at the lower end to maintain the positioning and rotation of the roller body 100. When the roller body 100 is in actual use, its core pillars 10h and several sets of embedded heads 10g can maintain tight engagement with the embedded positioning layer 10f, and at the same time, it can ensure that the roller body 100 remains stable during rotation and ensure the strength of the roller body 100 itself, so as to be used stably in extreme high temperature environments.

[0031] The bearing housing 120 is provided with a set of inner limiting bearings for maintaining the stable rotation of the roller body 100. The inner side of the inner limiting bearing is provided with a set of limiting rotating shafts 140 for maintaining the connection and fixation with the roller body 100. Each set of limiting rotating shafts 140 is provided on the front and rear sides of the roller body 100, and is an integral structure with the roller body 100.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fiber furnace roller for a high-temperature annealing furnace, comprising: The roller body (100) and the limiting rotating shaft (140) are characterized in that: a set of upper limit shells (110) for keeping the roller body (100) in a limited position are provided on the upper ends of both the front and rear sides of the roller body (100). The roller body (100) includes a roller surface (10a), an outer heat-resistant layer (10b), a silicon carbide fiber layer (10c), an inner fastening partition (10d), and a core column (10h). The inner side of the roller surface (10a) is provided with an outer heat-resistant layer (10b) for high-temperature isolation of the high-temperature annealing furnace. Rock wool material is stored inside the outer heat-resistant layer (10b). A silicon carbide fiber layer (10c) for blocking the temperature of the high-temperature annealing furnace is provided in the middle position inside the outer heat-resistant layer (10b). The cross-section of the silicon carbide fiber layer (10c) in plan view is a wave structure. The silicon carbide fiber layer (10c) is distributed in a ring structure inside the outer heat-resistant layer (10b).

2. The fiber furnace roller for a high-temperature annealing furnace according to claim 1, characterized in that: The outer heat-resistant layer (10b) has a set of inner fastening partitions (10d) on the inner side for keeping the roller body (100) tightly and stably filled. The inner fastening partition (10d) is a metal roll liner. The inner fastening partition (10d) has a set of inner heat-resistant layers on the inner side.

3. A fiber furnace roller for a high-temperature annealing furnace according to claim 2, characterized in that: The inner heat-resistant layer and the outer heat-resistant layer (10b) have the same specifications and are both filled with rock wool material. The inner heat-resistant layer has a set of silicon carbide fiber layer two (10e) in the middle position to block the temperature of the high-temperature annealing furnace.

4. A fiber furnace roller for a high-temperature annealing furnace according to claim 3, characterized in that: The silicon carbide fiber layer one (10c) and the silicon carbide fiber layer two (10e) have the same specifications. The inner heat-resistant layer is provided with an embedded positioning layer (10f) for positioning and interlocking with the embedded head (10g).

5. A fiber furnace roller for a high-temperature annealing furnace according to claim 4, characterized in that: The inner side of the embedded positioning layer (10f) is provided with several sets of inner grooves for positioning with the embedded head (10g). The several sets of inner grooves are evenly distributed, and the interior of each set of inner grooves is interlocked with a set of embedded heads (10g).

6. A fiber furnace roller for a high-temperature annealing furnace according to claim 5, characterized in that: The inner side of several sets of embedded heads (10g) is provided with a set of core pillars (10h) for maintaining rotational stability and improving the support strength of the roller surface (10a). The core pillars (10h) and several sets of embedded heads (10g) are an integral structure. The lower end of each set of upper limit shells (110) is provided with a set of bearing seats (120) for maintaining the positioning and rotation of the roller body (100).

7. A fiber furnace roller for a high-temperature annealing furnace according to claim 6, characterized in that: The bearing housing (120) is provided with a set of inner limiting bearings for maintaining the stable rotation of the roller (100). The inner side of the inner limiting bearing is provided with a set of limiting rotating shafts (140) for maintaining the connection and fixation with the roller (100). Each set of limiting rotating shafts (140) is provided on the front and rear sides of the roller (100) and is an integral structure with the roller (100).

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