A new type of refractory lining structure for high temperature kiln car platform

Abstract

The present invention relates to the technical field of high-temperature kiln cars, and discloses a new type of refractory lining structure for a high-temperature kiln car platform. The disclosed new type of refractory lining structure for a high-temperature kiln car platform has a lightweight castable layer as a thermal insulation layer; a thermal insulation layer is arranged on the upper part of the thermal insulation layer; the thermal insulation layer has a first lightweight high-strength prefabricated part and a second lightweight high-strength prefabricated part that are buckled together as a whole; side bricks are arranged around the thermal insulation layer; the side bricks are a structure with four corners cut off; the side bricks are multiple layers of staggered masonry; the bottom surface of the bottom side brick is a plane that matches the thermal insulation layer; a heavy insulation layer composed of 1 to 2 layers of heavy refractory bricks is arranged on the upper part of the top side brick; the heavy refractory bricks described in the bottom layer are buckled together with the top side bricks as a whole; corner bricks are arranged at the four corners of the thermal insulation layer; the corner bricks are multiple layers arranged up and down. The present invention solves the problem of deformation of the refractory lining of the kiln car platform and improves the platform stability of the kiln car.

Description

Technical Field

[0001] The invention belongs to the technical field of kiln cars, and in particular relates to a novel high-temperature kiln car platform refractory lining structure. Background Art

[0002] The refractory lining on the high-temperature kiln car platform has two functions. One is to support the fired products carried on the kiln car to ensure the stability of the stacked products; the other is to protect the steel structure of the kiln car and prevent the wheel axle on the kiln car from being damaged by high temperature. In order to ensure the stability of the fired products stacked on the platform during the movement of the kiln car, the refractory lining that supports the kiln car platform is required to have long-term stability. In the process of the kiln car undergoing high and low temperature operation changes, it is also required to have the ability to resist high-temperature deformation to extend the service life of the kiln car.

[0003] The important factor affecting the stability of the refractory lining of the kiln car platform is the deformation of the refractory lining. The refractory lining is generally composed of multiple layers of different types of refractory materials. In order to ensure the stability of the stacked products on the kiln car, a layer of kiln sand needs to be laid between the kiln car table tiles and the products for leveling. During the recycling of the kiln car, the kiln sand will fall into the brick joints of the kiln car lining bricks. As the number of cycles of the kiln car increases, the kiln sand in the brick joints continues to accumulate and produce repeated expansion and contraction, causing the refractory lining of the kiln car to expand and deform, causing the deformation of the overall platform of the kiln car, directly affecting the stability of the products on the platform, and ultimately affecting the firing of the products.

[0004] There are high-temperature airflow through-channels between the multiple layers of refractory linings on the kiln car platform. The high-temperature airflow goes along the through-channels directly to the steel structure at the bottom of the kiln car, causing the steel structure to be damaged by high temperature. The heat storage problem of the refractory lining of the kiln car is another reason for the high-temperature deformation of the refractory lining of the kiln car platform.

[0005] Reducing the deformation of the refractory lining to ensure the stability of the kiln car platform has long been a problem that needs to be solved. The structural design of the multi-layer refractory lining of the kiln car platform is the key factor in solving the deformation of the refractory lining of the kiln car platform.

[0006] Delaying the deformation of the kiln car refractory lining, reducing maintenance workload and reducing the heat storage of the refractory lining can significantly reduce the operating cost of the tunnel kiln, which is one of the main problems that need to be solved in the production process of the tunnel kiln. The reasonable selection of the kiln car refractory lining structure design and material is the key factor to solve the deformation of the kiln car platform refractory lining, reduce maintenance workload and reduce the heat storage of the refractory lining. Summary of the invention

[0007] The purpose of the present invention is to provide a novel high-temperature kiln car platform refractory lining structure, which can solve the problem of refractory lining deformation of the kiln car platform and improve the stability of the kiln car platform.

[0008] To achieve the above object, the present invention adopts the following technical solution:

[0009] A novel high-temperature kiln car platform refractory lining structure, the kiln car platform refractory lining structure has a lightweight castable layer as a thermal insulation layer; the thermal insulation layer is located at the bottom of the kiln car platform refractory lining; a heat insulation layer is arranged on the upper part of the thermal insulation layer; the heat insulation layer has a first lightweight high-strength prefabricated part and a second lightweight high-strength prefabricated part which are buckled together as a whole; side bricks are arranged around the thermal insulation layer; the side bricks arranged around the thermal insulation layer are structures with four corners cut off; the side bricks are multiple layers laid with staggered joints up and down; the multiple layers of side bricks are buckled together as a whole; the bottom surface of the bottom side brick is a plane matching the thermal insulation layer; the top side brick A heavy insulation layer consisting of 1 to 2 layers of heavy refractory bricks is arranged on the upper part of the bricks; the heavy refractory bricks in the bottom layer are buckled and connected to the edge bricks in the top layer as a whole; the heavy refractory bricks in the two adjacent layers are buckled and connected as a whole; corner bricks are arranged at the four corners of the insulation layer; the corner bricks are multiple layers arranged up and down; the insulation layer, the thermal insulation layer, the refractory lining bricks in the heavy insulation layer, the upper and lower refractory lining bricks, and the refractory lining and the steel structure of the kiln car form a stable whole through a locking structure, which improves the damage caused by the falling of kiln sand, blocks the high-temperature air flow channel, solves the deformation problem of the refractory lining of the kiln car platform, and improves the stability of the kiln car platform.

[0010] The first lightweight and high-strength prefabricated component is a rectangular hollow bottomless structure. The top of the first lightweight and high-strength prefabricated component is a plane combined with the heat-resistant layer, and is built into a whole with the heat-resistant layer; the second lightweight and high-strength prefabricated component is located at the lower part of the first lightweight and high-strength prefabricated component, and its top surface has an upwardly protruding platform I, which can be embedded in the first lightweight and high-strength prefabricated component to form a sub-button bite structure; the hollow part of each prefabricated component is filled with lightweight thermal insulation material.

[0011] An expansion joint of about 10 mm is arranged between the first light and high-strength prefabricated part, the second light and high-strength prefabricated part and the adjacent light and high-strength prefabricated parts, and the expansion joint is filled with thermal insulation material.

[0012] The first layer of edge bricks of the thermal insulation layer is located on the upper part of the thermal insulation layer and is a rectangular parallelepiped structure. An upwardly protruding inclined platform I is provided at the upper quarter of the top surface. The inclined platform I is located on the left side of the edge brick and the inclined surface is located inside the edge brick.

[0013] The middle layer side bricks of the thermal insulation layer are located on the upper part of the first layer side bricks and are of a rectangular structure. A fourth of the bottom portion has an inwardly recessed inclined platform II, and the shape and size of the inclined platform II are consistent with the upwardly protruding inclined platform I of the first layer side bricks. A fourth of the top portion has an upwardly protruding inclined platform III, and the inclined platform III is located on the left side of the side brick, with the inclined surface located inside the side brick.

[0014] The top layer side brick of the thermal insulation layer is a rectangular parallelepiped structure, with an inwardly recessed inclined platform IV at the bottom quarter, and the shape and size of the inclined platform IV are consistent with the upwardly protruding inclined platform III of the second layer side brick; there is an upwardly protruding inclined platform V at the upper quarter of the top surface, and the inclined platform V is located on the right side of the side brick, and the inclined surface is located inside the side brick.

[0015] The bottom of the middle layer of the insulation layer's side bricks is connected to the top of the first layer of side bricks by masonry, and the inclined platforms of the upper and lower layers of side bricks fit together to form a locking structure; its top is connected to the bottom of its upper layer of side bricks by masonry, and the inclined platforms of the upper and lower layers of side bricks fit together to form a locking structure.

[0016] The bottom of the top layer side bricks of the insulation layer is integrally built with the top of the middle layer side bricks, and the inclined platforms of the upper and lower layers of side bricks fit together to form a locking structure; the top is integrally built with the heavy heat-resistant layer bricks, and the inclined platforms of the upper and lower layers of bricks fit together to form a locking structure.

[0017] The heavy refractory bricks of the bottom layer are of a rectangular structure, and an inwardly recessed inclined platform is provided at the bottom thereof. The shape and size of the inclined platform are consistent with the upwardly protruding inclined platform on the right side of the top layer of the side bricks.

[0018] The heavy refractory bricks of the bottom layer are integrally built with the top edge bricks of the top layer of the heat insulation layer, and the inclined platforms of the upper and lower layers of bricks fit each other to form a locking structure.

[0019] The upper and lower layers of the heavy-weight heat-insulating refractory bricks are laid with staggered joints, and the expansion joints between the upper refractory bricks and the expansion joints between the lower refractory bricks are not at the same longitudinal position, but are staggered by a certain distance.

[0020] There are 2 to 3 layers of corner bricks arranged at each corner of the heat insulation layer; the first layer of corner bricks is a rectangular parallelepiped, and there is an inwardly concave groove at one-fourth of the right side of the top plane, and the groove is in the shape of a square; the second layer of corner bricks is a rectangular parallelepiped, and there is a downwardly and outwardly protruding platform II at one-fourth of the right side of the bottom plane, and the shape and size of the platform II are consistent with the inwardly concave square groove of the first layer of corner bricks; there is an inwardly concave groove at one-fourth of the right side of the top plane, and the platform is in the shape of a square, and its top There is a slope on the left side; the third layer of corner bricks is a rectangular parallelepiped, and a platform III protruding downward and outward is arranged at the right quarter of the bottom plane, and the shape and size of the platform III are consistent with the inwardly recessed square groove of the second layer of corner bricks; the protruding platform II at the bottom of the second layer of corner bricks is embedded in the recessed square groove of the first layer of corner bricks below, and the upper and lower corner bricks are interlocked and built into one; the protruding platform III at the bottom of the third layer of corner bricks is embedded in the recessed square groove of the second layer of corner bricks below, and the upper and lower corner bricks are interlocked and built into one.

[0021] The present invention proposes a new type of high-temperature kiln car platform refractory lining structure, which adopts the above technical solution and has the following positive effects:

[0022] 1. The staggered masonry method and the locking structure between the upper and lower layers are adopted between the side bricks and corner bricks of the outer circle of the insulation layer prefabricated parts, and between the refractory bricks of the heat-resistant layer and the side bricks of the insulation layer. The refractory lining of the kiln car platform is built into a rectangular whole. The first layer of outer lining bricks at the bottom is embedded in the angle steel frame on the steel structure of the kiln car. The locking structure between the angle steel frame on the steel structure of the kiln car and each layer of outer lining bricks greatly improves the ability of the refractory lining of the kiln car to resist expansion and deformation.

[0023] 2. The upper and lower layers of the heat-resistant layer are built with staggered joints, and no upper and lower through-channels are formed, which prevents the kiln sand from falling. At the same time, the lower large prefabricated parts built together with the heat-resistant layer have fewer gaps, which further prevents the kiln sand from falling. The gaps are filled with retractable insulation materials such as fiber blankets, which can buffer the stress damage caused by the kiln sand to the prefabricated parts and greatly reduce the deformation of refractory bricks.

[0024] 3. A ~10mm thick ceramic fiber blanket is used to fill the space between the outer lining bricks and the inner hollow lining bricks. This structure can effectively absorb the expansion and deformation caused by the kiln sand falling between the brick joints, thereby extending the service life of the kiln car lining bricks.

[0025] 4. Rectangular hollow lining bricks are used as supporting materials inside the kiln car platform. ① On the premise of reducing the overall weight of the kiln car, the upper and lower layers of hollow lining bricks are interlocked to ensure the stability of the kiln car platform; ② A 10mm gap is left between the rectangular hollow lining bricks to fill with fiber blankets and other insulation materials to ensure that each brick can expand freely. At the same time, the hollow lining bricks are filled with light insulation materials, which effectively improves the thermal resistance of the kiln car lining bricks and reduces the temperature of the lower part of the kiln car; reduces the heat storage of the kiln car lining bricks and saves energy; ③ Rectangular hollow lining bricks do not need to be built with fire clay, and the large size can significantly reduce the gap between refractory bricks, improve construction efficiency, and are very convenient for masonry and maintenance, greatly reducing construction costs.

[0026] 5. Use large-size lining bricks to effectively reduce the gaps between refractory bricks, thereby reducing the channels for kiln sand to fall. At the same time, fill the lining bricks with insulation materials such as fiber blankets. The kiln sand falls into the fiber blankets, which can act as a buffer to avoid stress concentration and damage such as extrusion and deformation of prefabricated parts.

[0027] 6. The upper and lower layers of the side bricks and corner bricks on the outer circle of the insulation layer prefabricated parts, as well as the upper and lower layers of the refractory bricks of the heat-resistant layer and the side bricks of the insulation layer are locked, so that the refractory lining of the kiln car platform is built into a sealed whole, which greatly improves the stability and firmness of the kiln car. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is the main view of the first layer of edge bricks;

[0029] Figure 2 This is the main view of the middle layer edge brick;

[0030] Figure 3 This is the main view of the top layer side bricks;

[0031] Figure 4 This is the main view of the first layer of corner bricks;

[0032] Figure 5 This is the main view of the second layer of corner bricks;

[0033] Figure 6 This is the main view of the third-layer corner bricks;

[0034] Figure 7 is a cross-sectional view of a first lightweight and high-strength prefabricated component;

[0035] Figure 8 is a cross-sectional view of a second lightweight and high-strength prefabricated component;

[0036] Fig. 9 It is a prefabricated snap-on structure.

[0037] In the figure: 1. first lightweight high-strength prefabricated component, 2. second lightweight high-strength prefabricated component, 2-1. platform I, 3. first layer side bricks, 3-1. inclined platform I, 4. middle layer side bricks, 4-1. inclined platform II, 4-2. inclined platform III, 6. first layer corner bricks, 6-1. trough body, 7. second layer corner bricks, 7-1. platform II, 8. third layer corner bricks, 8-1. platform III, 9. lightweight thermal insulation material, 10. thermal insulation material. DETAILED DESCRIPTION

[0038] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings, but they do not constitute a limitation of the present invention and are only used as examples.

[0039] A novel high-temperature kiln car platform refractory lining structure, the kiln car platform refractory lining structure has a lightweight castable layer as a thermal insulation layer; the thermal insulation layer is located at the bottom of the kiln car platform refractory lining; a heat insulation layer is arranged on the upper part of the thermal insulation layer; the heat insulation layer has a first lightweight high-strength prefabricated part 1 and a second lightweight high-strength prefabricated part 2 which are buckled together as a whole; side bricks are arranged around the thermal insulation layer; the side bricks arranged around the thermal insulation layer are structures with four corners cut off; the side bricks are multiple layers laid with staggered joints up and down; the multiple layers of side bricks are buckled together as a whole; the bottom surface of the bottom side brick is a plane matching the thermal insulation layer; the top A heavy insulation layer consisting of 1 to 2 layers of heavy refractory bricks is arranged on the upper part of the side bricks; the heavy refractory bricks in the bottom layer are buckled and connected to the side bricks in the top layer as a whole; the heavy refractory bricks in two adjacent layers are buckled and connected as a whole; corner bricks are arranged at the four corners of the insulation layer; the corner bricks are multiple layers arranged up and down; the insulation layer, the thermal insulation layer, the refractory lining bricks in the heavy insulation layer, the upper and lower refractory lining bricks, and the refractory lining and the steel structure of the kiln car form a stable whole through a locking structure, which improves the damage caused by the falling of kiln sand, blocks the high-temperature air flow channel, solves the deformation problem of the refractory lining of the kiln car platform, and improves the stability of the kiln car platform.

[0040] like Figure 7 , 9 As shown, the first lightweight and high-strength prefabricated component 1 is a rectangular hollow bottomless structure, and the top of the first lightweight and high-strength prefabricated component 1 is a plane combined with the heat-resistant layer, and is built into a whole with the heat-resistant layer; the second lightweight and high-strength prefabricated component 2 is located at the lower part of the first lightweight and high-strength prefabricated component 1, and its top surface has an upwardly protruding platform 2-1, and the platform 2-1 can be embedded in the first lightweight and high-strength prefabricated component to form a sub-button bite structure; the hollow part of each prefabricated component is filled with lightweight thermal insulation material 9.

[0041] An expansion joint of about 10 mm is arranged between the first light-weight high-strength prefabricated part 1 , the second light-weight high-strength prefabricated part 2 and the adjacent light-weight high-strength prefabricated parts, and the expansion joint is filled with a heat-insulating material 10 .

[0042] Combination Figure 1 The first layer of edge bricks 3 of the insulation layer is located on the upper part of the insulation layer and is a rectangular structure. There is an upwardly protruding inclined platform 3-1 at the upper quarter of the top surface. The inclined platform 3-1 is located on the left side of the edge brick, and the inclined surface is located inside the edge brick.

[0043] Combination Figure 2The middle layer side brick 4 of the heat insulation layer is located on the upper part of the first layer side brick 3 and is a rectangular parallelepiped structure. A fourth of the bottom portion thereof has an inwardly recessed inclined platform II4-1, and the shape and size of the inclined platform are consistent with the upwardly protruding inclined platform I of the first layer side brick; a fourth of the top portion thereof has an upwardly protruding inclined platform III4-2, and the inclined platform III4-2 is located on the left side of the side brick, and the inclined surface is located inside the side brick.

[0044] Combination Figure 3 The top layer side brick of the thermal insulation layer is a rectangular parallelepiped structure, and there is an inwardly recessed inclined platform IV at the bottom quarter, and the shape and size of the inclined platform IV are consistent with the upwardly protruding inclined platform III4-2 of the second layer side brick; there is an upwardly protruding inclined platform V at the upper quarter of the top surface, and the inclined platform V is located on the right side of the side brick, and the inclined surface is located inside the side brick.

[0045] The bottom of the middle layer of the insulation layer's side bricks is connected to the top of the first layer of side bricks by masonry, and the inclined platforms of the upper and lower layers of side bricks fit together to form a locking structure; its top is connected to the bottom of its upper layer of side bricks by masonry, and the inclined platforms of the upper and lower layers of side bricks fit together to form a locking structure.

[0046] The bottom of the top layer side bricks of the insulation layer is integrally built with the top of the middle layer side bricks, and the inclined platforms of the upper and lower layers of side bricks fit together to form a locking structure; the top is integrally built with the heavy heat-resistant layer bricks, and the inclined platforms of the upper and lower layers of bricks fit together to form a locking structure.

[0047] The heavy refractory bricks of the bottom layer are of a rectangular structure, and an inwardly recessed inclined platform is provided at the bottom thereof. The shape and size of the inclined platform are consistent with the upwardly protruding inclined platform on the right side of the top layer of the side bricks.

[0048] The heavy refractory bricks of the bottom layer are integrally built with the top edge bricks of the top layer of the heat insulation layer, and the inclined platforms of the upper and lower layers of bricks fit each other to form a locking structure.

[0049] The upper and lower layers of the heavy-weight heat-insulating refractory bricks are laid with staggered joints, and the expansion joints between the upper refractory bricks and the expansion joints between the lower refractory bricks are not at the same longitudinal position, but are staggered by a certain distance.

[0050] There are 2 to 3 layers of corner bricks set at each corner of the insulation layer; Figure 4 The first layer of corner bricks 6 is a rectangular parallelepiped, and a groove body Ⅰ6-1 is recessed inward at the right quarter of the top plane, and the groove body Ⅰ6-1 is a square shape; combined with Figure 5The second layer of corner bricks 7 is a rectangular parallelepiped, and a platform II7-1 protruding downward and outward is provided at the right quarter of the bottom plane, and the shape and size of the platform II7-1 are consistent with the inwardly recessed groove body I6-1 of the first layer of corner bricks; a groove body II is recessed inwardly at the right quarter of the top plane, and the platform II7-1 is in the shape of a square, and there is an inclined surface on the left side of the top; combined with Figure 6 The third-layer corner brick 8 is a rectangular parallelepiped, and a platform III8-1 protruding downward and outward is provided at one-fourth of the right side of the bottom plane thereof, and the shape and size of the platform III8-1 are consistent with the inwardly recessed quadrilateral groove of the second-layer corner brick; the protruding platform II7-1 at the bottom of the second-layer corner brick is embedded in the recessed quadrilateral groove of the first-layer corner brick at the bottom, and the upper and lower corner bricks are interlocked and built into one; the protruding platform III8-1 at the bottom of the third-layer corner brick is embedded in the recessed quadrilateral groove of the second-layer corner brick at the bottom, and the upper and lower corner bricks are interlocked and built into one.

[0051] The kiln car made of this platform refractory lining structure has improved overall masonry and construction efficiency, the kiln car operation remains stable for a long time, and the service life is 3 to 5 times that of the original kiln car.

Claims

1. A new type of high temperature kiln car platform refractory lining structure, characterized by: The refractory lining structure of the kiln car platform has a lightweight castable layer as a thermal insulation layer; the thermal insulation layer is located at the bottom of the refractory lining of the kiln car platform; a heat-insulating layer is arranged on the upper part of the thermal insulation layer; the heat-insulating layer has a first lightweight high-strength prefabricated member and a second lightweight high-strength prefabricated member which are buckled together into one piece; side bricks are arranged around the thermal insulation layer; the side bricks arranged around the thermal insulation layer are a structure with four corners cut off; the side bricks are multiple layers laid with staggered joints up and down; the multiple layers of side bricks are buckled together into one piece; the bottom surface of the bottom side brick is a plane matching the thermal insulation layer; a heavy insulation layer composed of 1 to 2 layers of heavy refractory bricks is arranged on the upper part of the top side brick; the heavy refractory bricks in the bottom layer are buckled together with the side bricks in the top layer; the heavy refractory bricks in the adjacent two layers are buckled together into one piece; corner bricks are arranged at the four corners of the thermal insulation layer; the corner The bricks are arranged in multiple layers up and down; a locking structure is used to form a stable whole between the refractory lining bricks in the insulation layer, the thermal insulation layer, the heavy insulation layer, the upper and lower refractory lining bricks, and the refractory lining and the steel structure of the kiln car; the first lightweight high-strength prefabricated part is a rectangular hollow bottomless structure, and the top of the first lightweight high-strength prefabricated part is a plane combined with the heat-resistant layer, and is built into a whole with the heat-resistant layer; the second lightweight high-strength prefabricated part is located at the lower part of the first lightweight high-strength prefabricated part, and its top surface has an upwardly protruding platform I, which can be embedded in the first lightweight high-strength prefabricated part to form a snap-on structure; the hollow part of each prefabricated part is filled with lightweight thermal insulation material; a 10mm expansion joint is arranged between the first lightweight high-strength prefabricated part, the second lightweight high-strength prefabricated part and the adjacent lightweight high-strength prefabricated parts, and the expansion joint is filled with thermal insulation material.

2. A new type of high temperature kiln car platform refractory lining structure as claimed in claim 1, characterized in that: The first layer of edge bricks of the thermal insulation layer is located on the upper part of the thermal insulation layer and is a rectangular parallelepiped structure. An upwardly protruding inclined platform I is provided at the upper quarter of the top surface. The inclined platform I is located on the left side of the edge brick and the inclined surface is located inside the edge brick.

3. A new type of high temperature kiln car platform refractory lining structure as claimed in claim 1, characterized in that: The middle layer side brick of the heat insulation layer is located on the upper part of the first layer side brick, and is a rectangular parallelepiped structure, and has an inwardly concave inclined platform II at the bottom quarter thereof, and the shape and size of the inclined platform II are consistent with the upwardly protruding inclined platform I of the first layer side brick; An upwardly protruding inclined platform III is provided at the upper quarter of the top surface thereof. The inclined platform III is located at the left side of the side brick, and the inclined surface is located inside the side brick.

4. A new type of high temperature kiln car platform refractory lining structure as claimed in claim 1, characterized in that: The top layer side brick of the heat insulation layer is a rectangular parallelepiped structure, and a fourth of the bottom thereof has an inwardly concave inclined platform IV, and the shape and size of the inclined platform IV are consistent with the upwardly protruding inclined platform III of the second layer side brick; An upwardly protruding inclined platform V is provided at the upper quarter of the top surface thereof. The inclined platform V is located at the right side of the side brick, and the inclined surface is located inside the side brick.

5. A novel high-temperature kiln car platform refractory lining structure as claimed in claim 1, characterized in that: The bottom of the middle layer of the side bricks of the heat insulation layer is connected to the top of the first layer of side bricks by masonry, and the inclined platforms of the upper and lower layers of side bricks fit together to form a locking structure; The top is connected to the bottom of the upper side bricks, and the inclined platforms of the upper and lower side bricks fit together to form a locking structure.

6. A novel high-temperature kiln car platform refractory lining structure as claimed in claim 1, characterized in that: The bottom of the top layer of edge bricks of the thermal insulation layer is integrally built with the top of the middle layer of edge bricks, and the inclined platforms of the upper and lower layers of edge bricks fit together to form a locking structure; The top is connected to the heavy heat-resistant layer of bricks, and the inclined platforms of the upper and lower layers of bricks fit together to form a locking structure.

7. A novel high-temperature kiln car platform refractory lining structure as claimed in claim 1, characterized in that: The heavy refractory bricks of the bottom layer are of a rectangular structure, and an inwardly recessed inclined platform is provided at the bottom thereof. The shape and size of the inclined platform are consistent with the upwardly protruding inclined platform on the right side of the top layer of the side bricks.

8. A novel high-temperature kiln car platform refractory lining structure as claimed in claim 1, characterized in that: The heavy refractory bricks of the bottom layer are connected to the top of the edge bricks of the top layer of the insulation layer by masonry, and the inclined platforms of the upper and lower layers of bricks fit together to form a locking structure; the upper and lower layers of the heavy insulating refractory bricks are laid with staggered joints, and the expansion joints between the upper refractory bricks and the expansion joints between the lower refractory bricks are not in the same longitudinal position, but are staggered by a certain distance.

9. A novel high-temperature kiln car platform refractory lining structure as claimed in claim 1, characterized in that: There are 2 to 3 layers of corner bricks arranged at each corner of the heat insulation layer; the first layer of corner bricks is a rectangular parallelepiped, and there is an inwardly concave groove at one quarter of the right side of the top plane, and the groove is in the shape of a square; The second layer of corner bricks is a rectangular parallelepiped, and a platform II protruding downward and outward is provided at the right quarter of the bottom plane. The shape and size of the platform II are consistent with the inwardly concave square groove of the first layer of corner bricks; There is an inwardly concave groove at one quarter of the right side of the top plane, and the platform is in the shape of a square with an inclined surface on the left side of the top; the third layer of corner bricks is a rectangular parallelepiped, and there is a downwardly and outwardly protruding platform III at one quarter of the right side of the bottom plane, and the shape and size of the platform III are consistent with the inwardly concave square groove of the second layer of corner bricks; The protruding platform II at the bottom of the second-layer corner bricks is embedded in the depressed cubic groove of the first-layer corner bricks below, and the upper and lower corner bricks are interlocked and built into one; the protruding platform III at the bottom of the third-layer corner bricks is embedded in the depressed cubic groove of the second-layer corner bricks below, and the upper and lower corner bricks are interlocked and built into one.

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