Anti-stripping refractory brick splicing structure for tunnel kiln roof

Abstract

The utility model discloses a tunnel kiln roof is with the spalling -resistant refractory brick joint structure, relates to refractory brick technical field. The utility model discloses a first working layer, first working layer one side is provided with second working layer, and the second working layer top is provided with the heat preservation layer, and the second working layer one side is provided with the clamping mechanism, and the clamping mechanism includes the clamping block fixedly connected with the second working layer one side. The utility model discloses the combination design through clamping mechanism and limiting mechanism, has realized the double locking of refractory brick in horizontal and vertical direction, effectively prevented the brick body displacement, cracking or peeling due to thermal expansion and cold shrinkage, vibration or adhesive aging, significantly improved the overall stability and service life of kiln roof structure, and the oblique cutting block in the limiting mechanism cooperates with the extrusion column, can realize self -locking function in the installation process, not only is convenient for construction, also has strengthened the connection intensity between the plug -in rod and the plug -in slot, avoids the loosening due to long -term high -temperature operation.

Description

Technical Field

[0001] This utility model belongs to the field of refractory brick technology, and in particular relates to a splicing structure of refractory bricks for the roof of tunnel kilns that is resistant to spalling. Background Technology

[0002] Tunnel kilns, as crucial continuous thermal equipment in modern industrial production, are widely used in the firing of products in fields such as ceramics, refractory materials, and building materials. The kiln roof, as a key component of the tunnel kiln, directly affects the kiln's operational safety, energy consumption, and product quality due to its structural stability, sealing, and durability. Tunnel kiln roofs are generally constructed from spliced ​​refractory bricks.

[0003] Existing kiln roof splicing structures primarily rely on simple interlocking mechanisms and adhesives such as refractory mortar to bond the bricks together. These bricks are then laid flat or slightly arched on the kiln roof steel structure. However, the adhesive itself gradually sinters, ages, and even pulverizes under long-term high-temperature conditions, significantly reducing its bonding strength. This makes the weak points in the brick bonding highly susceptible to micro-cracks. As the kiln continues to operate, these micro-cracks expand and connect, eventually forming visible cracks and even causing peeling.

[0004] To address these issues, we have developed a refractory brick splicing structure for the roof of tunnel kilns that resists spalling. Utility Model Content

[0005] The purpose of this utility model is to provide a refractory brick splicing structure for the roof of a tunnel kiln that is resistant to spalling. Through the cooperation of a snap-fit ​​mechanism and a limiting mechanism, the problem of easy spalling of bricks in the existing refractory brick splicing structure during use is solved.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to a splicing structure for anti-stripping refractory bricks used in the roof of a tunnel kiln, comprising a first working layer, a second working layer disposed on one side of the first working layer, and an insulation layer disposed on top of the second working layer; a snap-fit ​​mechanism is disposed on one side of the second working layer, the snap-fit ​​mechanism comprising a snap block fixedly connected to one side of the second working layer and a snap groove opened on one side of the first working layer; a limiting mechanism is disposed at the bottom of the insulation layer, the limiting mechanism comprising an insert rod disposed at the bottom of the insulation layer and a slot opened on one side of the first working layer.

[0008] The present invention is further configured such that the limiting mechanism includes a groove formed on the top of the second working layer and an obliquely cut block disposed inside the groove.

[0009] The present invention is further configured such that the limiting mechanism includes a compression post disposed on one side of the insertion rod, and a connecting rod fixedly connected to the top of the compression post.

[0010] The present invention is further configured such that the limiting mechanism includes a sealing plate disposed at the bottom of the insulation layer, and the sealing plate is in close contact with the second working layer.

[0011] The present invention is further configured such that a slider is fixedly connected to the top of the insertion rod, and the slider is slidably connected to the second working layer.

[0012] The present invention is further configured such that the bottom of the extrusion column is in close contact with the second working layer, and the bottom end of the extrusion column is designed with an arc surface.

[0013] The present invention is further configured such that the bottom of the insulation layer is in close contact with the second working layer, and anchoring holes are provided at the top of the insulation layer, the first working layer and the second working layer.

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

[0015] 1. This utility model achieves dual locking of refractory bricks in both horizontal and vertical directions through the combination design of the snap-fit ​​mechanism and the limiting mechanism. This effectively prevents brick displacement, cracking, or peeling caused by thermal expansion and contraction, vibration, or aging of the adhesive, significantly improving the overall stability and service life of the kiln roof structure. The inclined cutting block and the extrusion column in the limiting mechanism can achieve a self-locking function during installation, which not only facilitates construction but also enhances the connection strength between the insertion rod and the slot, preventing loosening caused by long-term high-temperature operation.

[0016] 2. This utility model effectively protects the internal structure by setting a sealing plate to prevent the intrusion of high-temperature flue gas and dust. By setting anchoring holes on the insulation layer, the first working layer and the second working layer, it is easy to firmly connect the layers with anchors to form an integral composite structure, which enhances the load-bearing capacity and anti-peeling performance of the kiln roof.

[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 This is a three-dimensional diagram of the refractory brick splicing structure used for the roof of a tunnel kiln to resist spalling.

[0020] Figure 2This is a cross-sectional view of the insulation layer in the spliced ​​structure of anti-stripping refractory bricks used for the roof of a tunnel kiln.

[0021] Figure 3 This is a cross-sectional view of the second working layer in the refractory brick splicing structure for the roof of a tunnel kiln, which is designed to resist spalling.

[0022] Figure 4 This is a cross-sectional view of the first working layer in the anti-stripping refractory brick splicing structure of the tunnel kiln roof.

[0023] Figure 5 This is a diagram showing the disassembly state of the sealing plate in the anti-stripping refractory brick splicing structure of the tunnel kiln roof.

[0024] In the attached diagram: 1. First working layer; 2. Second working layer; 3. Insulation layer; 4. Snap-fit ​​mechanism; 41. Snap-fit ​​block; 42. Snap-fit ​​groove; 5. Limiting mechanism; 51. Insert rod; 52. Slot; 53. Groove; 54. Beveled block; 55. Extrusion column; 56. Connecting rod; 57. Sealing plate; 6. Anchor hole. Detailed Implementation

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

[0026] Example 1

[0027] Please see Figures 1-5This utility model relates to an anti-stripping refractory brick splicing structure for the roof of a tunnel kiln, comprising a first working layer 1, with a second working layer 2 disposed on one side of the first working layer 1. The first and second working layers 1 and 2 serve as the main load-bearing and refractory layers of the kiln roof, directly facing the high-temperature environment inside the kiln, possessing excellent refractory performance and mechanical strength. An insulation layer 3 is disposed on top of the second working layer 2, the main function of which is heat insulation, reducing heat loss to the outside of the kiln roof, improving the kiln's thermal efficiency, and reducing energy consumption. A locking mechanism 4 is disposed on one side of the second working layer 2, comprising a locking block 41 fixedly connected to one side of the second working layer 2, and a locking groove 42 formed on one side of the first working layer 1, the dimensions of which are the same as those of the locking block. The card block 41 is adapted to the first working layer 1 and inserted into the slot 42 to achieve splicing positioning. The slot 42 cooperates with the card block 41 to prevent the brick from shifting or peeling in the horizontal direction and enhance the shear resistance of the splicing structure. The bottom of the insulation layer 3 is provided with a limiting mechanism 5. The limiting mechanism 5 includes a rod 51 set at the bottom of the insulation layer 3 and a slot 52 opened on one side of the first working layer 1. The size of the slot 52 is adapted to the rod 51. The rod 51 extends from the bottom of the insulation layer 3 to the slot 52 of the first working layer 1 to achieve vertical limiting and prevent the brick from falling off due to thermal expansion and contraction or vibration. The slot 52 cooperates with the rod 51 to provide a vertical fixing point and enhance the peel resistance of the structure.

[0028] Example 2

[0029] Please see Figures 1-5Based on Embodiment 1, the limiting mechanism 5 further includes a groove 53 formed at the top of the second working layer 2, a beveled block 54 disposed inside the groove 53, and an insertion rod 51 extending through the groove 53 at one end away from the first working layer 1 and fixedly connected to the beveled block 54. The limiting mechanism 5 also includes an extrusion column 55 disposed on one side of the insertion rod 51, with the extrusion column 55 in close contact with the beveled block 54, and a connecting rod 56 fixedly connected to the top of the extrusion column 55. The limiting mechanism 5 also includes a sealing plate 57 disposed at the bottom of the insulation layer 3, with the bottom of the sealing plate 57 fixedly connected to the connecting rod 56 and in close contact with the second working layer 2. The groove 53 provides installation space for the limiting mechanism 5. The beveled block 54 is linked with the insertion rod 51, and the pressure of the extrusion column 55 is converted into the insertion force of the insertion rod 51 through the beveled structure, realizing a self-locking function. 5. External pressure is converted into thrust on the beveled block 54, pushing the insert rod 51 into the slot 52. The connecting rod 56 connects the extrusion column 55 and the sealing plate 57, transmitting pressure and maintaining structural linkage. The sealing plate 57 covers the opening of the groove 53, serving as a seal and dustproof function, while protecting the internal mechanism from high-temperature flue gas corrosion. A slider is fixedly connected to the top of the insert rod 51, and the slider is slidably connected to the second working layer 2. The second working layer 2 has a groove inside that matches the slider. The bottom of the extrusion column 55 is in close contact with the second working layer 2. The bottom of the extrusion column 55 has an arc design. The bottom of the insulation layer 3 is in close contact with the second working layer 2. Anchor holes 6 are opened at the top of the insulation layer 3, the first working layer 1, and the second working layer 2. The anchor holes 6 are used to install anchors, so that the insulation layer 3, the first working layer 1, and the second working layer 2 respectively form the entire brick body.

[0030] The working principle of this utility model is as follows: First, the locking block 41 on one side of the second working layer 2 is aligned with the locking groove 42 on the first working layer 1 for horizontal splicing, achieving initial positioning and horizontal fixation. Then, the insulation layer 3 is laid on top of the second working layer 2 and fixed by anchors. During the installation of the insulation layer 3, its bottom sealing plate 57 is pressed into the groove 53, achieving a seal. Simultaneously, the extrusion column 55 pushes the beveled block 54 under external pressure. The beveled block 54, through its inclined structure, converts the vertical thrust into the horizontal insertion force of the insertion rod 51, allowing the insertion rod 51 to smoothly enter the slot 52 of the first working layer 1, completing the vertical positioning. This process forms a self-locking mechanism, ensuring that the bricks maintain a tight connection even under high-temperature operating conditions. During use, if maintenance or replacement is required, the positioning can be released by reversing the operation, facilitating local maintenance without affecting the overall structure.

[0031] 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 refractory brick splicing structure for the roof of a tunnel kiln, comprising a first working layer (1), characterized in that: A second working layer (2) is provided on one side of the first working layer (1), and a heat insulation layer (3) is provided on the top of the second working layer (2); A snap-fit ​​mechanism (4) is provided on one side of the second working layer (2). The snap-fit ​​mechanism (4) includes a snap block (41) fixedly connected to one side of the second working layer (2) and a snap slot (42) opened on one side of the first working layer (1). The insulation layer (3) is provided with a limiting mechanism (5) at the bottom. The limiting mechanism (5) includes a plug (51) provided at the bottom of the insulation layer (3) and a slot (52) opened on one side of the first working layer (1).

2. The anti-stripping refractory brick splicing structure for the tunnel kiln roof according to claim 1, characterized in that: The limiting mechanism (5) also includes a groove (53) opened on the top of the second working layer (2) and a chamfered block (54) disposed inside the groove (53).

3. The anti-stripping refractory brick splicing structure for the tunnel kiln roof according to claim 1, characterized in that: The limiting mechanism (5) further includes a pressing column (55) disposed on one side of the insert rod (51) and a connecting rod (56) fixedly connected to the top of the pressing column (55).

4. The anti-stripping refractory brick splicing structure for the tunnel kiln roof according to claim 1, characterized in that: The limiting mechanism (5) also includes a sealing plate (57) disposed at the bottom of the insulation layer (3), and the sealing plate (57) is in close contact with the second working layer (2).

5. The anti-stripping refractory brick splicing structure for the tunnel kiln roof according to claim 1, characterized in that: The top of the insertion rod (51) is fixedly connected to a slider, which is slidably connected to the second working layer (2).

6. The anti-stripping refractory brick splicing structure for the tunnel kiln roof according to claim 3, characterized in that: The bottom of the extrusion column (55) is in close contact with the second working layer (2), and the bottom end of the extrusion column (55) is designed with an arc surface.

7. The anti-stripping refractory brick splicing structure for the tunnel kiln roof according to claim 1, characterized in that: The bottom of the insulation layer (3) is in close contact with the second working layer (2), and anchoring holes (6) are provided on the top of the insulation layer (3), the first working layer (1) and the second working layer (2).

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