Lightweight composite refractory brick components for roller kiln walls

Abstract

This utility model discloses a lightweight composite refractory brick assembly for roller kiln walls, relating to the field of refractory brick technology. The utility model includes a refractory brick body with a first through groove on one side. A support mechanism is installed inside the first through groove, including a high-alumina support shell fixedly connected to one side of the first through groove. By incorporating a high-alumina support shell and a lightweight triangular support frame within the first through groove, this utility model reduces the weight of the refractory brick body and effectively disperses stress through the mechanical advantages of the triangular structure, avoiding localized stress concentration and significantly improving bending and shear resistance. It is particularly suitable for the periodic thermal shock and mechanical vibration conditions of roller kilns. The positioning mechanism uses a combination of slots, blocks, inserts, and grooves to achieve rapid positioning and connection between refractory bricks. Damaged individual bricks can be directly disassembled and replaced without overall removal, significantly reducing maintenance costs and time.

Description

Technical Field

[0001] This utility model belongs to the field of refractory brick technology, and in particular relates to a lightweight composite refractory brick component for roller kiln walls. Background Technology

[0002] A roller kiln is a continuous high-temperature kiln mainly used in the firing processes of industries such as ceramics, bricks and tiles, glass, and metallurgy. Its core structure consists of a conveyor belt composed of rollers that transport the workpieces into the kiln for high-temperature treatment or firing, ultimately yielding the desired product. Refractory brick components are used in the construction of the roller kiln walls.

[0003] A utility model patent application with publication number CN215413172U discloses a lightweight refractory brick for the refractory layer of a bauxite calcining furnace. The brick includes a strength layer, an outer heat insulation layer, and a cavity on the inner side of the strength layer. The outer surface of the heat insulation layer is covered by a refractory shell. Through the combined use of reinforcing grooves and cavities, as well as the strength layer and refractory shell, this lightweight refractory brick for the bauxite calcining furnace ensures structural strength through the strength layer, reduces overall weight through the cavity within the strength layer, and further enhances structural strength through uniformly distributed reinforcing grooves within the strength layer.

[0004] While the aforementioned technical solution achieves both lightweight and high strength in refractory bricks, its method of enhancing overall strength through linear reinforcing grooves within the strength layer suffers from uneven stress distribution under non-uniform loads. This can lead to localized stress concentrations, affecting the long-term stability of the refractory bricks. Particularly under the cyclic thermal shock and mechanical vibration conditions of roller kilns, the linear reinforcing grooves exhibit weak bending and shear resistance, failing to effectively disperse complex external forces and thus reducing the service life of the refractory bricks. Furthermore, the connection between refractory bricks via interlocking joints and embedded piles necessitates complete removal and replacement of any damaged brick, increasing costs.

[0005] To address these issues, we offer lightweight composite refractory brick components for roller kiln walls. Utility Model Content

[0006] The purpose of this invention is to provide a lightweight composite refractory brick assembly for roller kiln walls. Through the cooperation of the support mechanism and the positioning mechanism, it solves the problems of insufficient strength and high replacement cost of existing refractory brick assemblies during use.

[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0008] This utility model relates to a lightweight composite refractory brick assembly for roller kiln walls, comprising a refractory brick body, a first through groove on one side of the refractory brick body, a support mechanism inside the first through groove, the support mechanism including a high-alumina support shell fixedly connected to one side of the first through groove, and a lightweight triangular support frame disposed inside the support shell; a positioning mechanism on one side of the refractory brick body, the positioning mechanism including a slot on one side of the refractory brick body and a locking block fixedly connected to one side of the refractory brick body.

[0009] The present invention is further configured such that the support mechanism includes a lightweight top plate fixedly connected to the top of the lightweight triangular support frame, and a lightweight bottom plate fixedly connected to the bottom of the lightweight triangular support frame.

[0010] The present invention is further configured such that the positioning mechanism includes an insert block fixedly connected to the top of the refractory brick body and a slot opened at the bottom of the refractory brick body.

[0011] The present invention is further configured such that a reinforcing groove is provided on one side of the interior of the high alumina support shell, and a second through groove is provided on one side of the lightweight triangular support frame.

[0012] The present invention is further configured such that a ceramic particle plate is fixedly connected to the front side of the refractory brick body, and the locking block is fixedly connected to the ceramic particle plate.

[0013] The present invention is further configured such that the size of the slot is adapted to the size of the card block, and a high-alumina plate is provided on the front side of the refractory brick body.

[0014] The present invention has the following beneficial effects.

[0015] 1. This utility model, by setting a high-alumina support shell and a lightweight triangular support frame within the first through groove, not only reduces the weight of the refractory brick body but also effectively disperses stress through the mechanical advantages of the triangular structure, avoiding localized stress concentration and significantly improving bending and shear resistance. It is particularly suitable for the periodic thermal shock and mechanical vibration conditions of roller kilns. The positioning mechanism employs a combination of slots, blocks, inserts, and grooves, enabling rapid positioning and connection between refractory bricks. Damaged individual bricks can be directly disassembled and replaced without overall removal, greatly reducing maintenance costs and time.

[0016] 2. This utility model, through a composite design of ceramic particle boards and high-alumina clay boards, enhances the heat insulation effect while ensuring fire resistance, thus extending the service life of the refractory bricks. The reinforcing grooves inside the high-alumina clay support shell further strengthen the overall structural stability. The lightweight triangular support frame is replaceable and reusable, reducing material waste. At the same time, the lightweight design reduces transportation and installation costs, meeting energy-saving and environmental protection requirements.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0019] Figure 1 A three-dimensional view of a lightweight composite refractory brick assembly for the kiln wall of a roller kiln.

[0020] Figure 2 This is a cross-sectional view of the refractory bricks in the lightweight composite refractory brick assembly for the kiln wall of a roller kiln.

[0021] Figure 3 This is a cross-sectional view of the high-alumina support shell in the lightweight composite refractory brick assembly for the kiln wall of a roller kiln.

[0022] Figure 4 A partial top view of the lightweight composite refractory brick assembly for the kiln wall of a roller kiln.

[0023] Figure 5 A bottom view of the lightweight composite refractory brick assembly for the kiln wall of a roller kiln.

[0024] In the attached diagram: 1. Refractory brick body; 2. First through groove; 3. High alumina support shell; 4. Lightweight triangular support frame; 5. Slot; 6. Block; 7. Lightweight top plate; 8. Lightweight bottom plate; 9. Insert block; 10. Slot; 11. Reinforcing groove; 12. Second through groove; 13. Ceramic particle plate; 14. High alumina plate. Detailed Implementation

[0025] The technical solutions of the present invention will be described below with reference to the accompanying drawings of the embodiments of the present invention. The described embodiments are only some embodiments of the present invention, and not all embodiments.

[0026] Example 1

[0027] Please see Figures 1-5This utility model is a lightweight composite refractory brick component for roller kiln walls, including a refractory brick body 1. The refractory brick body 1 is a type of brick that can maintain its physical and chemical properties in high-temperature environments and is widely used in places requiring high-temperature resistance, such as furnaces, boilers, and heat exchangers. It is a mature existing technology and will not be described in detail here. A first through groove 2 is provided on one side of the refractory brick body 1. The first through groove 2 makes the refractory brick body 1 hollow to reduce its weight and achieve the purpose of lightweighting. A support mechanism is provided inside the first through groove 2. The support mechanism includes a high-alumina support shell 3 fixedly connected to one side of the first through groove 2 and a lightweight triangular support frame 4 set inside the support shell. A positioning mechanism is provided on one side of the refractory brick body 1. The positioning mechanism includes a slot 5 opened on one side of the refractory brick body 1 and a block 6 fixedly connected to one side of the refractory brick body 1.

[0028] Example 2

[0029] Please see Figures 1-5 Based on Embodiment 1, the support mechanism further includes a lightweight top plate 7 fixedly connected to the top of the lightweight triangular support frame 4, and a lightweight bottom plate 8 fixedly connected to the bottom of the lightweight triangular support frame 4. The top of the lightweight top plate 7 and the lightweight triangular support frame 4, as well as the bottom of the lightweight bottom plate 8 and the lightweight triangular support frame 4, are all fixedly connected by bolts. The positioning mechanism also includes an insert 9 fixedly connected to the top of the refractory brick body 1, and a slot 10 opened at the bottom of the refractory brick body 1. The slot 10 and the insert 9 are sized to match. A reinforcing groove 11 is opened on one side inside the high-alumina support shell 3. The reinforcing groove 11 is used to strengthen the strength of the refractory brick body 1. A second through groove 12 is opened on one side of the lightweight triangular support frame 4. 12. The weight of the lightweight triangular support frame 4 is reduced. A ceramic particle plate 13 is fixedly connected to the front side of the refractory brick body 1. The locking block 6 is fixedly connected to the ceramic particle plate 13. The size of the locking groove 5 is adapted to the locking block 6. A high alumina plate 14 is provided on the front side of the refractory brick body 1. The front side of the insert block 9 is also fixedly connected to the ceramic particle plate 13. The ceramic particle plate 13 is used to improve the heat insulation performance of the refractory brick body 1. The ceramic particle plate 13 is fixedly connected to the high alumina plate 14. The high alumina plate 14 is used to improve the heat resistance performance of the refractory brick body 1. The same slot 10 is opened at the bottom of both the ceramic particle plate 13 and the high alumina plate 14. The same locking groove 5 is opened on one side of both the ceramic particle plate 13 and the high alumina plate 14.

[0030] The working principle of this utility model is as follows: the refractory brick body 1 forms a hollow structure through the first through groove 2, combined with the lightweight triangular support frame 4 and the second through groove 12 design, significantly reducing its self-weight while maintaining structural strength. The geometric characteristics of the triangular support frame uniformly transfer the external load to the high-alumina support shell 3 and the reinforcing groove 11, avoiding the stress concentration problem of the straight reinforcing groove 11, and is especially suitable for non-uniform load and thermal shock conditions.

[0031] During installation, the precise alignment and stable connection of the bricks are achieved through the cooperation of the locking block 6 and the locking groove 5, and the insertion block 9 and the slot 10, ensuring the tightness and stability of the overall kiln wall structure. Ceramic particle plates 13 reflect heat radiation to reduce heat loss, while high-alumina plates 14 resist high-temperature erosion; the two work together to improve heat insulation and refractory performance. The replaceable design of the support mechanism further extends the component lifespan. Through innovative structural design and material composites, the problems of insufficient strength and difficult replacement of traditional refractory bricks are solved. It features lightweight, high stability, and low-cost maintenance, making it suitable for harsh industrial environments such as roller kilns.

[0032] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A lightweight composite refractory brick assembly for roller kiln walls, comprising a refractory brick body (1), characterized in that: The refractory brick body (1) has a first through groove (2) on one side; The first through groove (2) is provided with a support mechanism, which includes a high alumina support shell (3) fixedly connected to one side of the first through groove (2) and a lightweight triangular support frame (4) provided inside the support shell. A positioning mechanism is provided on one side of the refractory brick body (1). The positioning mechanism includes a slot (5) opened on one side of the refractory brick body (1) and a block (6) fixedly connected to one side of the refractory brick body (1).

2. The lightweight composite refractory brick assembly for roller kiln walls according to claim 1, characterized in that: The support mechanism also includes a lightweight top plate (7) fixedly connected to the top of the lightweight triangular support frame (4) and a lightweight bottom plate (8) fixedly connected to the bottom of the lightweight triangular support frame (4).

3. The lightweight composite refractory brick assembly for roller kiln walls according to claim 1, characterized in that: The positioning mechanism also includes an insert (9) fixedly connected to the top of the refractory brick body (1) and a slot (10) opened at the bottom of the refractory brick body (1).

4. The lightweight composite refractory brick assembly for roller kiln walls according to claim 1, characterized in that: The high-alumina support shell (3) has a reinforcing groove (11) on one side inside, and the lightweight triangular support frame (4) has a second through groove (12) on one side.

5. The lightweight composite refractory brick assembly for roller kiln walls according to claim 1, characterized in that: A ceramic particle plate (13) is fixedly connected to the front side of the refractory brick body (1), and the locking block (6) is fixedly connected to the ceramic particle plate (13).

6. The lightweight composite refractory brick assembly for roller kiln walls according to claim 1, characterized in that: The size of the slot (5) is adapted to the size of the block (6), and a high-alumina plate (14) is provided on the front side of the refractory brick body (1).

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