Bricklaying structure of kiln car lining

Abstract

The utility model discloses a brick structure of a kiln car lining, which is built on the top surface of a bottom plate of a kiln car, and comprises a surrounding side wall, a partition wall and a light thermal insulation material, the partition walls are arranged in the surrounding side wall, the partition walls divide the inner space of the surrounding side wall into a plurality of filling spaces, the inner side wall of the surrounding side wall, the outer side wall of the surrounding side wall and the two side walls of the partition walls are each provided with a curved sealing structure, and the filling spaces are filled with the light heat preservation materials. The filling height of the light heat preservation material is the same as the height of the surrounding side wall and the height of the partition wall. The curved sealing structure formed by the surrounding side wall and the partition wall is matched with the light heat preservation material for filling, interface gaps caused by material shrinkage in the high-temperature environment are effectively restrained, the sealing performance and the high-temperature-resistant grade are improved, and the beneficial effect that the service life is prolonged is achieved.

Description

Technical Field

[0001] This utility model relates to the field of tunnel kiln car technology, and in particular to a bricklaying structure for kiln car lining. Background Technology

[0002] As a core production facility in the modern building materials industry, including bricks, tiles, ceramics, and refractory materials, the tunnel kiln system's kiln car structure design directly impacts kiln operating efficiency and product quality stability. In a kiln car-type tunnel kiln, the kiln car simultaneously serves as both the kiln's conveying carrier and the kiln bottom sealing system, needing to withstand cyclic high-temperature loads (typically reaching 1200-1350℃) and significant temperature gradients. The lining material on the kiln car surface, as a key functional component, directly determines the reliability of the kiln bottom sealing system through its material properties and structural design, thus affecting product sintering uniformity, unit energy consumption, and equipment operational safety.

[0003] In existing technologies, lightweight kiln cars generally adopt a hollow-sided kiln car structure. While this structure has the advantage of being lightweight, it reveals significant drawbacks in high-temperature applications: First, the hollow kiln car structure is limited by the high-temperature resistance of the materials, and its long-term operating temperature limit is usually no more than 1250℃, which cannot meet the requirements of high-temperature firing processes such as ceramic glaze firing (1280-1350℃) and high-alumina refractory materials (1300-1400℃). Second, the structural design has weak sealing links. There is no effective curved sealing structure between the insulation material and the kiln car. When the insulation material shrinks and deforms under long-term thermal shock, a through gap of 0.5-2mm is easily formed at the interface between the kiln car and the insulation material, leading to high-temperature flue gas leakage (fire penetration phenomenon).

[0004] Current technological improvements often focus on enhancing the performance of single materials. For example, replacing traditional lightweight clay bricks with alumina hollow sphere castables can raise the temperature resistance to 1400℃, but this does not solve the fundamental problem of structural sealing failure. Especially in the fields of electronic ceramic sintering and the preparation of special refractory materials, which require precise temperature control, existing kiln car structures are no longer sufficient to meet the stringent requirements of high-end manufacturing for the thermal performance of kilns. Utility Model Content

[0005] In response to the problems raised in the background art, the purpose of this utility model is to propose a bricklaying structure for kiln car lining, which solves the problem that existing kiln cars are not resistant to high temperatures.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A brickwork structure for kiln car lining, the brickwork structure being built on the top surface of the kiln car bottom plate, the brickwork structure including a perimeter wall, a partition wall and a lightweight insulation material;

[0008] The partition wall is provided inside the perimeter wall, which divides the internal space of the perimeter wall into several filling spaces. The inner side wall, the outer side wall, and the two side walls of the partition wall are all provided with curved sealing structures. The filling spaces are filled with the lightweight insulation material, and the filling height of the lightweight insulation material is the same as the height of the perimeter wall and the height of the partition wall.

[0009] Preferably, the curved enclosure structure includes a staggered enclosure wall structure and a staggered partition wall structure;

[0010] The perimeter wall includes several layers of first brick structure and several layers of second brick structure. The first brick structure and the second brick structure are stacked from bottom to top. The vertically adjacent first brick structure and second brick structure are staggered. The inner sidewall and the outer sidewall of the perimeter wall form the staggered structure of the perimeter wall.

[0011] The partition wall includes several first partition brick layers and several second partition brick layers, which are stacked from bottom to top. The first partition brick layer and the first brick layer are on the same brick layer, and the second partition brick layer and the second brick layer are on the same brick layer. The vertically adjacent first partition brick layers and second partition brick layers form the staggered structure of the partition wall.

[0012] Preferably, the perimeter wall is rectangular in shape on the horizontal plane, and one of the partition walls divides the interior space of the perimeter wall into two filling spaces;

[0013] The first brick layer structure includes two first side brick structures and two first edge brick structures. The first side brick structures extend along the left-right direction of the kiln car bottom plate, and the two first side brick structures are arranged opposite each other along the front-back direction of the kiln car bottom plate. The first edge brick structure is located between the two first side brick structures, and the two first edge brick structures are arranged opposite each other along the left-right direction of the kiln car bottom plate.

[0014] The second brick layer structure includes two second side brick structures and two second edge brick structures. The second edge brick structures extend along the front-back direction of the kiln car bottom plate, and the two second edge brick structures are arranged opposite each other along the left-right direction of the kiln car bottom plate. The second side brick structure is located between the two second edge brick structures, and the two second side brick structures are arranged opposite each other along the front-back direction of the kiln car bottom plate.

[0015] Preferably, the first side brick structure, the first edge brick structure, the second side brick structure, the second edge brick structure, the first spacer brick layer, and the second spacer brick layer are all composed of several bricks spliced ​​together. The first brick layer structure and the second brick layer structure have the same length, and the width of the first brick layer structure is smaller than the width of the second brick layer structure.

[0016] The bricks include a first brick, a second brick, a third brick, a fourth brick, and a fifth brick. The length of the first brick is a1, the length of the second brick is a2, the length of the third brick is a3, the length of the first brick is a4, and the length of the fifth brick is a5, wherein: a1 = a5 > a4 > a2 > a3; the width of the first brick is b1, the width of the second brick is b2, the width of the third brick is b3, the width of the first brick is b4, and the width of the fifth brick is b5, wherein: b1 = b2 = b3 = b4 > b5, and a2 = 2 * b2; the thickness of the first brick, the second brick, the third brick, the fourth brick, and the fifth brick is the same.

[0017] Preferably, the first side brick structure consists of one first brick and two second bricks, with the two second bricks located on both sides of the first brick;

[0018] The first edge brick structure is composed of two first bricks;

[0019] The lengths of the two second bricks of the first side brick structure and the length of the first first brick of the first side brick structure constitute the width of the first brick layer structure, and the widths of the two second bricks of the first side brick structure on both sides and the lengths of the two first bricks of the first side brick structure constitute the length of the first brick layer structure.

[0020] Preferably, the second side brick structure consists of two second bricks and two third bricks, with the two second bricks located on both sides of the two third bricks;

[0021] The second side brick structure consists of one of the first bricks and one of the fourth bricks;

[0022] The lengths of the two second bricks of the second side brick structure and the lengths of the two third bricks of the second side brick structure constitute the length of the second brick layer structure, and the widths of the two second bricks of the second side brick structure on both sides, the length of the first brick of the second side brick structure and the length of the fourth brick of the second side brick structure constitute the width of the second brick layer structure.

[0023] Preferably, the first brick layer is offset forward relative to the second brick layer structure in the front-back direction, and the offset of several first brick layer structures and several second brick layer structures constitutes the wall misalignment structure.

[0024] Preferably, the first spacer brick layer is composed of two first bricks, which are spliced ​​together along their long sides.

[0025] The second spacer brick layer consists of two fifth bricks, which are joined together along their long sides.

[0026] The center of the first spacer brick layer and the center of the second spacer brick layer are in the same vertical plane.

[0027] Preferably, the lightweight thermal insulation material comprises an energy-saving sand layer, a high-purity aluminum silicate fiber layer, and a zirconium-containing aluminum silicate fiber layer laid from bottom to top, wherein the thickness ratio of the energy-saving sand layer, the high-purity aluminum silicate fiber layer, and the zirconium-containing aluminum silicate fiber layer is (0.8~1.2):(1~2):(4~5).

[0028] Compared with the prior art, one of the above technical solutions has the following beneficial effects:

[0029] By using the curved sealing structure formed by the perimeter wall and the partition wall, combined with lightweight insulation material filling, the interface gaps caused by material shrinkage under high temperature environment are effectively suppressed, improving sealing performance and high temperature resistance, and extending service life. Attached Figure Description

[0030] Figure 1 This is a structural schematic diagram of one embodiment of the present invention (lightweight insulation material is not shown);

[0031] Figure 2 This is a top view of one embodiment of the present invention;

[0032] Figure 3 yes Figure 2 Sectional view of AA;

[0033] Figure 4 yes Figure 2 Sectional view of BB;

[0034] Figure 5 This is a schematic diagram showing the combination of the first brick layer structure and the first spacer brick layer;

[0035] Figure 6 This is a schematic diagram showing the combination of the second brick layer structure and the second spacer brick layer.

[0036] The structure includes: brickwork structure 100, filling space 1100, perimeter wall 110, first brick layer structure 111, first side brick structure 1111, first side brick structure 1112, second brick layer structure 112, second side brick structure 1121, second side brick structure 1122, partition wall 120, first partition brick layer 121, second partition brick layer 122, lightweight insulation material 130, energy-saving sand layer 131, high-purity aluminum silicate fiber layer 132, zirconium-containing aluminum silicate fiber layer 133, curved sealing structure 20, perimeter wall staggered structure 21, partition wall staggered structure 22, column 31, shelf board 32, kiln car bottom plate 9, first brick 01, second brick 02, third brick 03, fourth brick 04 and fifth brick 05. Detailed Implementation

[0037] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0038] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0039] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," and "third" may explicitly or implicitly include one or more of that feature.

[0040] It should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0041] In existing technologies, tunnel kiln systems, as core production facilities in the modern building materials industry, directly impact kiln operating efficiency and product quality through their kiln car structural design. Current lightweight kiln cars generally employ a hollow-sided shelf structure, which, while offering lightweight advantages, suffers from insufficient temperature resistance and sealing failure in high-temperature applications. The upper temperature limit of the hollow-sided shelf structure cannot meet the demands of high-temperature firing processes, and the lack of an effective sealing structure between the insulation material and the surrounding shelf makes it prone to forming through-gaps under thermal shock, leading to high-temperature flue gas leakage.

[0042] To solve the above problems, the following is a summary in conjunction with the appendix. Figures 1 to 6 The technical solution of this utility model will be further illustrated through specific implementation methods.

[0043] This utility model proposes a brickwork structure for kiln car lining, including a brickwork structure 100 built on the top surface of the kiln car bottom plate 9. The brickwork structure 100 includes a perimeter wall 110, a partition wall 120, and a lightweight insulation material 130. The partition wall 120 is provided inside the perimeter wall 110, dividing the internal space of the perimeter wall 110 into several filling spaces 1100. The inner side wall, outer side wall, and both side walls of the partition wall 120 are provided with curved sealing structures 20. The filling spaces 1100 are filled with the lightweight insulation material 130, and the filling height of the lightweight insulation material 130 is the same as the height of the perimeter wall 110 and the height of the partition wall 120. The top surface of the brickwork structure 100 is supported by a shelf 32 by several columns 31, and the shelf 32 is used to place the products to be fired.

[0044] The perimeter wall 110 refers to an enclosure structure formed by brick masonry, which can be implemented using a multi-layered staggered masonry method to form a stable external support frame. The partition wall 120 is a brick-built partition wall located inside the perimeter wall 110, which can be implemented using a partition structure built simultaneously with the perimeter wall 110, used to divide independent infill spaces 1100. The infill space 1100 is a closed area jointly defined by the perimeter wall 110 and the partition wall 120, which can be specifically formed into regular geometric units by adjusting the layout of the partition wall 120. The curved sealing structure 20 refers to a three-dimensional sealed interface set at the boundary of the infill space 1100, which can be implemented using a staggered brick masonry method with interlocking concave and convex joints to form a non-linear contact surface. The lightweight insulation material 130 can specifically be a multi-layered composite fiber material, filled into each infill space 1100 to ensure filling density and structural stability.

[0045] This invention utilizes a combination of perimeter wall 110 and partition wall 120 to divide the brickwork structure on the top surface of the kiln car bottom plate 9 into multiple filling spaces 1100. Curved sealing structures 20 are installed on the inner and outer walls of the filling spaces 1100 to form a continuous sealed interface. The perimeter wall 110 serves as an external support frame, while the partition walls 120 internally divide the overall space into independent filling units 1100. This avoids the uniformity of traditional hollow kiln structure structures and provides independent support for different areas. The filling spaces 1100 are completely filled with lightweight insulation material 130, and its height is flush with the perimeter wall 110 and partition wall 120, ensuring uniform stress distribution on the insulation layer at high temperatures and reducing deformation caused by localized stress concentration. The curved sealing structures 20 are distributed on the inner and outer walls of the filling spaces. Through staggered or interlocking geometric designs, they compensate for the shrinkage of the lightweight insulation material under thermal shock, blocking the formation path of through-type gaps, thereby improving high-temperature sealing performance. The combination of the perimeter wall 110, the partition wall 120 and the lightweight insulation material 130 not only enhances the overall structure's high-temperature load-bearing capacity, but also effectively suppresses the leakage of hot flue gas through a multi-stage sealing design.

[0046] Furthermore, the curved enclosure structure 20 includes a wall misalignment structure 21 and a partition wall misalignment structure 22;

[0047] The perimeter wall 110 includes several layers of first brick structure 111 and several layers of second brick structure 112. The first brick structure 111 and the second brick structure 112 are stacked from bottom to top. The vertically adjacent first brick structure 111 and second brick structure 112 are staggered. The inner and outer walls of the perimeter wall 110 form the staggered structure 21 of the perimeter wall.

[0048] The partition wall 120 includes several layers of first partition bricks 121 and several layers of second partition bricks 122. The first partition bricks 121 and the second partition bricks 122 are stacked from bottom to top. The first partition bricks 121 and the first brick structure 111 are on the same brick layer, and the second partition bricks 122 and the second brick structure 112 are on the same brick layer. The vertically adjacent first partition bricks 121 and second partition bricks 122 form the partition wall misalignment structure 22.

[0049] By decomposing the perimeter wall 110 into alternating layers of first brick structure 111 and second brick structure 112, and staggering them to form a three-dimensional staggered perimeter wall structure 21, the staggered perimeter wall structure 21 breaks the continuity of traditional straight-joint masonry in three dimensions, effectively dispersing thermal stress and forming multiple tortuous sealing paths. The partition wall 120 adopts a staggered masonry method with the same layer height as the perimeter wall 110. Its staggered partition wall structure 22 and perimeter wall staggered structure 21 form spatial complementarity, jointly constructing a three-dimensional labyrinthine sealing system. The first partition brick layer 121 is set on the same layer as the first brick structure 111, ensuring the coordinated deformation capability of the partition wall 120 and the perimeter wall 110 in the horizontal direction; the second partition brick layer 122 is set on the same layer as the second brick structure 112, so that the staggered directions of the two maintain spatial symmetry. The curved sealing structure 20 integrates the dual misalignment features of the perimeter wall 110 and the partition wall 120, forming interlocking contact surfaces during high-temperature expansion. It utilizes the frictional resistance generated by the brick layer misalignment to suppress thermal deformation, while simultaneously increasing the resistance to flue gas permeation through its tortuous interface morphology. This three-dimensional misalignment design ensures the overall rigidity of the masonry while achieving dynamic sealing compensation through the discontinuous interface formed by multi-directional misalignment.

[0050] Furthermore, the perimeter wall 110 is rectangular in shape on the horizontal plane, and a partition wall 120 divides the interior space of the perimeter wall 110 into two filling spaces 1100;

[0051] The first brick layer structure 111 includes two first side brick structures 1111 and two first edge brick structures 1112. The first side brick structures 1111 extend along the left-right direction of the kiln car bottom plate 9, and the two first side brick structures 1111 are arranged opposite each other along the front-back direction of the kiln car bottom plate 9. The first edge brick structure 1112 is disposed between the two first side brick structures 1111, and the two first edge brick structures 1112 are arranged opposite each other along the left-right direction of the kiln car bottom plate 9.

[0052] The second brick layer structure 112 includes two second side brick structures 1121 and two second edge brick structures 1122. The second edge brick structures 1122 extend along the front-back direction of the kiln car bottom plate 9, and the two second edge brick structures 1122 are arranged opposite each other along the left-right direction of the kiln car bottom plate 9. The second side brick structures 1121 are located between the two second edge brick structures 1122, and the two second side brick structures 1121 are arranged opposite each other along the front-back direction of the kiln car bottom plate 9.

[0053] By defining the rectangular shape of the perimeter wall 110 and the separation method of the partition wall 120, a symmetrical layout of the filling space 1100 is formed, resulting in a more uniform distribution of thermal stress. In the first brick layer structure 111, the first side brick structure 1111 and the first edge brick structure 1112 are arranged in a cross-shaped layout with opposite directions in front-back and left-right. In the second brick layer structure 112, the second side brick structure 1121 and the second edge brick structure 1122 are arranged in a complementary layout with opposite directions in left-right and front-back. The two types of brick layer structures form an orthogonal relationship in the spatial dimension. This design, through the staggered extension direction control of the first side brick structure 1111 and the second edge brick structure 1122, and the complementary constraint of the positioning direction of the first edge brick structure 1112 and the second side brick structure 1121, forms an interlocking masonry form in three-dimensional space, thereby establishing a mechanical balance system between adjacent brick layers and effectively suppressing interlayer displacement caused by high-temperature expansion. The transverse skeleton formed by the first side brick structure 1111 extending in the left-right direction and the longitudinal skeleton formed by the second side brick structure 1122 extending in the front-back direction together constitute a two-way load-bearing frame, forming a stable curved joint support interface within the filled space.

[0054] Furthermore, the first side brick structure 1111, the first edge brick structure 1112, the second side brick structure 1121, the second edge brick structure 1122, the first spacer brick layer 121, and the second spacer brick layer 122 are all composed of several bricks spliced ​​together. The first brick layer structure 111 and the second brick layer structure 112 have the same length, and the width of the first brick layer structure 111 is smaller than the width of the second brick layer structure 112.

[0055] The bricks include a first brick 01, a second brick 02, a third brick 03, a fourth brick 04, and a fifth brick 05. The length of the first brick 01 is a1, the length of the second brick 02 is a2, the length of the third brick 03 is a3, the length of the first brick 01 is a4, and the length of the fifth brick 05 is a5, wherein: a1 = a5 > a4 > a2 > a3; the width of the first brick 01 is b1, the width of the second brick 02 is b2, the width of the third brick 03 is b3, the width of the fourth brick 04 is b4, and the width of the fifth brick 05 is b5, wherein: b1 = b2 = b3 = b4 > b5, and a2 = 2 * b2; the thickness of the first brick 01, the second brick 02, the third brick 03, the fourth brick 04, and the fifth brick 05 is the same.

[0056] Modular assembly is achieved by limiting the dimensions of five types of bricks. The first brick 01 acts as a connector to accommodate different brick layer lengths. The second brick 02 constructs an extension section in the perimeter wall 110. The third brick 03 and the fourth brick 04 fill structural gaps. The fifth brick 05 compensates for misalignment in the partition wall 120. The four brick types (first brick 01, second brick 02, third brick 03, and fourth brick 04) of the perimeter wall 110 have equal widths, ensuring a tight fit between the brick joints during construction and reducing the channels for high-temperature flue gas penetration.

[0057] This brickwork structure uses only four sizes of high-temperature refractory bricks, eliminating the need for additional cutting and processing of the bricks during construction, which significantly improves construction efficiency.

[0058] Furthermore, the first side brick structure 1111 is composed of one first brick 01 and two second bricks 02, with the two second bricks 02 located on both sides of the first brick 01;

[0059] The first edge brick structure 1112 is composed of two first bricks 01;

[0060] The lengths of the two second bricks 02 of the first side brick structure 1111 and the length of the first brick 01 of the first side brick structure 1111 constitute the width of the first brick layer structure 111. The widths of the two second bricks 02 of the first side brick structure 1111 on both sides and the lengths of the two first bricks 01 of the first side brick structure 1112 constitute the length of the first brick layer structure 111.

[0061] The first side brick structure 1111 is composed of two second bricks 02 arranged on the left and right sides of the first brick 01, respectively. The length of the first side brick structure 1111 is formed by the long sides of the two second bricks 02 and the long side of the first brick 01, and its length extends along the kiln car bottom plate 9 to form a transverse support surface. In addition, the length of the first side brick structure 1111 is the same as the width of the first brick layer structure 111, and the width of the first brick layer structure 111 is a2 + a1 + a2.

[0062] The first side brick structure 1112 consists of two first bricks 01, which are positioned between two opposing first side brick structures 1111. The first side brick structures 1111 and 1112 form an orthogonal superposition, creating staggered gaps between them on the horizontal plane. This arrangement results in a non-uniform and discontinuous distribution of gaps in both the front-to-back and left-to-right directions, particularly forming a multi-directional, labyrinthine gap path with the upper and lower second brick layer structures 112. Under high-temperature conditions, the staggered joints between the bricks absorb the deformation caused by thermal expansion, preventing cracking due to linear expansion and blocking heat flow from penetrating the structure along a straight path. Furthermore, the length of the first side brick structure 1112 and the width of the two first side brick structures 1111 constitute the length of the first brick layer structure 111. The length of the second brick layer structure 112 is calculated as b2 + a1 + a1 + b2.

[0063] Furthermore, the second side brick structure 1122 is composed of two second bricks 02 and two third bricks 03, with the two second bricks 02 located on both sides of the two third bricks 03;

[0064] The second side brick structure 1121 consists of a first brick 01 and a fourth brick 04;

[0065] The lengths of the two second bricks 02 of the second side brick structure 1122 and the lengths of the two third bricks 03 of the second side brick structure 1122 constitute the length of the second brick layer structure 112. The widths of the two second bricks 02 of the second side brick structure 1122 on both sides, the length of the first brick 01 of the second side brick structure 1121 and the length of the fourth brick 04 of the second side brick structure 1121 constitute the width of the second brick layer structure 112.

[0066] The second side brick structure 1122 refers to a constraint unit formed by arranging bricks of two different specifications. Specifically, it can be implemented by arranging the second brick 02 and the third brick 03 along the front-to-back direction. The long side of the second brick 02 is used to limit the total length of the brick layer, and the third brick 03 is used to fill the remaining space of the second brick layer structure 112, forming uniform support for the insulation material filling boundary through complementary dimensions. The length of the second side brick structure 1122 is the same as the length of the second brick layer structure 112, and the length of the second brick layer structure = a2 + a3 + a3 + a2. The second side brick structure 1121 refers to a connecting unit formed by arranging the first brick 01 and the fourth brick 04 along the left-to-right direction. The length of the second side brick structure 1121 and the width of both sides of the second side brick structure 1122 (the widths of the second brick 02 and the third brick 03 are equal) constitute the width of the second brick layer structure 112, and the width of the second brick layer structure = b2 + a1 + a4 + b2.

[0067] The second side brick structure 1121 is positioned between two opposing second side brick structures 1122, which is inconsistent with the combination pattern of the first side brick structure 1111 and the first side brick structure 1112 of the first brick layer structure 111 (the first side brick structure 1112 is positioned between the two first side brick structures 1111). This causes the gaps between the bricks in the upper and lower brick layers of the perimeter wall 110 to be misaligned, blocking the passage for hot flue gas to directly penetrate to the bottom of the kiln car.

[0068] Furthermore, since the width of the first brick layer structure 111 is a2 + a1 + a2, and the width of the second brick layer structure 112 is b2 + a1 + a4 + b2, and a2 = 2 * b2, a4 > a2, the width of the second brick layer structure 112 is greater than the width of the first brick layer structure 111, so that the outer wall of the perimeter wall 110 forms a staggered perimeter wall structure 21 (curved sealing structure 20).

[0069] Furthermore, the first brick layer structure 111 is offset forward relative to the second brick layer structure 112 in the front-back direction, and the offset of several first brick layer structures 111 and several second brick layer structures 112 constitutes the wall misalignment structure 21.

[0070] The offset between the first brick layer structure 111 and the second brick layer structure 112 in the front-to-back direction disrupts the longitudinal thermal expansion path and inhibits linear shrinkage deformation. Combined with the misalignment structure formed by the difference in width between the first and second brick layer structures 111 and 112, a multi-dimensional misaligned sealing structure is formed. After the multi-dimensional offset of the brick layer structures is superimposed, a discontinuous, interlaced labyrinthine interface is formed between the brick layers, significantly improving the overall sealing performance of the perimeter wall. When the lightweight insulation material 130 shrinks due to heat, the misaligned structure can disperse the shrinkage stress and block the through-flow flue gas path, thereby solving the core problem of high-temperature flue gas leakage along the gaps to the bottom of the kiln car.

[0071] Preferably, the second brick 02 has a size of 460mm*230mm*65mm, the first brick 01 has a size of 610mm*230mm*65mm, the third brick 03 has a size of 380mm*230mm*65mm, the fourth brick 04 has a size of 580mm*230mm*65mm, and the fifth brick 05 has a size of 610mm*170mm*65mm.

[0072] Furthermore, the first spacer brick layer 121 is composed of two first bricks 01, which are spliced ​​together along their long side.

[0073] The second spacer brick layer 122 is composed of two fifth bricks 05, which are spliced ​​together along their long side.

[0074] The center of the first spacer brick layer 121 and the center of the second spacer brick layer 122 are in the same vertical plane.

[0075] By defining the specific composition and splicing method of the first partition brick layer 121 and the second partition brick layer 122, a stable staggered structure is formed to enhance the sealing performance of the partition wall. The first partition brick layer 121 is made by splicing two first bricks 01 along their own long side, and the second partition brick layer 122 is made by splicing two fifth bricks 05 along their own long side. The center of the first partition brick layer 121 and the center of the second partition brick layer 122 are on the same vertical plane. Combined with the width difference between the first bricks 01 and the fifth bricks 05 (b1>b5), the upper and lower brick layers of the partition wall 120 naturally form a staggered partition wall structure 22 on both sides when the bricks are laid. Together with the staggered wall structure 21, they form a curved sealing structure 20.

[0076] Meanwhile, the width of the fourth brick 04 in the second spacer layer 122 is narrower than the width of the first brick 01 in the first spacer layer 121, allowing for a compact interlocking structure in the vertical direction and further suppressing displacement caused by thermal stress. The centers of the two spacer layers are located in the same vertical plane, ensuring a continuous vertical load transfer path for the partition wall. This maintains the overall structural strength and compensates for thermal shock deformation through the micro-misalignment caused by the size difference between the upper and lower brick layers, thereby eliminating the conditions for the formation of through-type gaps.

[0077] Furthermore, the lightweight thermal insulation material 130 comprises, from bottom to top, an energy-saving sand layer 131, a high-purity aluminum silicate fiber layer 132, and a zirconium-containing aluminum silicate fiber layer 133, wherein the thickness ratio of the energy-saving sand layer 131, the high-purity aluminum silicate fiber layer 132, and the zirconium-containing aluminum silicate fiber layer 133 is in the range of (0.8–1.2):(1–2):(4–5).

[0078] By setting up a three-layer composite lightweight insulation material structure consisting of an energy-saving sand layer 131, a high-purity aluminosilicate fiber layer 132, and a zirconium-containing aluminosilicate fiber layer 133, and adopting a specific thickness ratio, a gradient thermal resistance and high-temperature deformation compensation mechanism is formed. The bottom energy-saving sand layer 131 has high mechanical strength, providing a supporting base for the upper fiber material, while blocking bottom heat conduction through its low thermal conductivity; the middle high-purity aluminosilicate fiber layer reduces the risk of impurity melting through high-purity raw materials, maintaining structural stability in the 1250-1300℃ range; the top zirconium-containing aluminosilicate fiber layer utilizes the zirconium oxide phase transformation toughening effect to suppress fiber pulverization in high-temperature regions above 1300℃, and reduces radiative heat transfer through its high reflectivity. Preferably, the three layers are arranged in a specific ratio. The combination of thickness ratios ensures thermal protection performance in high-temperature areas, while the combination of a thinner rigid lower layer and a thicker flexible upper layer absorbs the differences in thermal expansion in different temperature zones, avoiding interface separation caused by the overall shrinkage of the insulation material.

[0079] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without any inventive effort, and these embodiments will all fall within the scope of protection of this utility model.

Claims

1. A brickwork structure for kiln car lining, said brickwork structure being constructed on the top surface of the kiln car floor plate, characterized in that: The brick structure includes a perimeter wall, a partition wall, and lightweight insulation material; The partition wall is provided inside the perimeter wall, which divides the internal space of the perimeter wall into several filling spaces. The inner side wall, the outer side wall, and the two side walls of the partition wall are all provided with curved sealing structures. The filling spaces are filled with the lightweight insulation material, and the filling height of the lightweight insulation material is the same as the height of the perimeter wall and the height of the partition wall.

2. The brickwork structure for a kiln car lining according to claim 1, characterized in that: The curved enclosure structure includes a staggered wall structure and a staggered partition wall structure; The perimeter wall includes several layers of first brick structure and several layers of second brick structure. The first brick structure and the second brick structure are stacked from bottom to top. The vertically adjacent first brick structure and second brick structure are staggered. The inner sidewall and the outer sidewall of the perimeter wall form the staggered structure of the perimeter wall. The partition wall includes several first partition brick layers and several second partition brick layers, which are stacked from bottom to top. The first partition brick layer and the first brick layer are on the same brick layer, and the second partition brick layer and the second brick layer are on the same brick layer. The vertically adjacent first partition brick layers and second partition brick layers form the staggered structure of the partition wall.

3. The brickwork structure for a kiln car lining according to claim 2, characterized in that: The perimeter wall is rectangular in shape on the horizontal plane, and one of the partition walls divides the interior space of the perimeter wall into two filling spaces; The first brick layer structure includes two first side brick structures and two first edge brick structures. The first side brick structures extend along the left-right direction of the kiln car bottom plate, and the two first side brick structures are arranged opposite each other along the front-back direction of the kiln car bottom plate. The first edge brick structure is located between the two first side brick structures, and the two first edge brick structures are arranged opposite each other along the left-right direction of the kiln car bottom plate. The second brick layer structure includes two second side brick structures and two second edge brick structures. The second edge brick structures extend along the front-back direction of the kiln car bottom plate, and the two second edge brick structures are arranged opposite each other along the left-right direction of the kiln car bottom plate. The second side brick structure is located between the two second edge brick structures, and the two second side brick structures are arranged opposite each other along the front-back direction of the kiln car bottom plate.

4. The brickwork structure for a kiln car lining according to claim 3, characterized in that: The first side brick structure, the first edge brick structure, the second side brick structure, the second edge brick structure, the first spacer brick layer, and the second spacer brick layer are all composed of several bricks spliced ​​together. The first brick layer structure and the second brick layer structure have the same length, and the width of the first brick layer structure is smaller than the width of the second brick layer structure. The bricks include a first brick, a second brick, a third brick, a fourth brick, and a fifth brick. The length of the first brick is a1, the length of the second brick is a2, the length of the third brick is a3, the length of the first brick is a4, and the length of the fifth brick is a5, wherein: a1 = a5 > a4 > a2 > a3; the width of the first brick is b1, the width of the second brick is b2, the width of the third brick is b3, the width of the first brick is b4, and the width of the fifth brick is b5, wherein: b1 = b2 = b3 = b4 > b5, and a2 = 2 * b2; the thickness of the first brick, the second brick, the third brick, the fourth brick, and the fifth brick is the same.

5. The brickwork structure for a kiln car lining according to claim 4, characterized in that: The first side brick structure consists of one first brick and two second bricks, with the two second bricks located on both sides of the first brick; The first edge brick structure is composed of two first bricks; The lengths of the two second bricks of the first side brick structure and the length of the first first brick of the first side brick structure constitute the width of the first brick layer structure, and the widths of the two second bricks of the first side brick structure on both sides and the lengths of the two first bricks of the first side brick structure constitute the length of the first brick layer structure.

6. The brickwork structure for a kiln car lining according to claim 5, characterized in that: The second side brick structure consists of two second bricks and two third bricks, with the two second bricks located on both sides of the two third bricks; The second side brick structure consists of one of the first bricks and one of the fourth bricks; The lengths of the two second bricks of the second side brick structure and the lengths of the two third bricks of the second side brick structure constitute the length of the second brick layer structure, and the widths of the two second bricks of the second side brick structure on both sides, the length of the first brick of the second side brick structure and the length of the fourth brick of the second side brick structure constitute the width of the second brick layer structure.

7. The brickwork structure for a kiln car lining according to claim 6, characterized in that: The first brick layer is offset forward relative to the second brick layer structure in the front-back direction, and the offset of several first brick layer structures and several second brick layer structures constitutes the wall misalignment structure.

8. The brickwork structure for a kiln car lining according to claim 4, characterized in that: The first spacer brick layer is composed of two first bricks, which are spliced ​​together one after the other along their long side. The second spacer brick layer consists of two fifth bricks, which are joined together along their long sides. The center of the first spacer brick layer and the center of the second spacer brick layer are in the same vertical plane.

9. The brickwork structure for a kiln car lining according to claim 2, characterized in that: The lightweight thermal insulation material comprises an energy-saving sand layer, a high-purity aluminum silicate fiber layer, and a zirconium-containing aluminum silicate fiber layer laid from bottom to top, wherein the thickness ratio of the energy-saving sand layer, the high-purity aluminum silicate fiber layer, and the zirconium-containing aluminum silicate fiber layer is (0.8~1.2):(1~2):(4~5).

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