Sintering support for tunnel furnace

Abstract

The utility model discloses a sintering support for a tunnel furnace. The sintering support comprises a structural base and combined side baffles. A vertical frame rod is arranged on the surface of the structure base; a plurality of first inserting holes are formed in the vertical frame rods, are arranged at intervals in the height direction and transversely penetrate through the vertical frame rods; the combined side baffle comprises an end face baffle rod and a side face baffle rod, the section of the end face baffle rod is matched with the first inserting hole, a transverse through hole is formed in the outer end of the end face baffle rod to serve as a second inserting hole, and after the end face baffle rod is inserted in the corresponding vertical frame rod, the corresponding second inserting hole is located on the outer side of the vertical frame rod; the sections of the side face stop levers are matched with the second insertion holes, and transverse insertion assembly at the positions of the second insertion holes can be carried out on the outer sides of the adjacent end face stop levers on the left side face and the right side face of the structure base. The device has the advantages of being simple in structure, high in applicability, good in stability, high in sintering efficiency and the like, and has important significance in improving the sintering quality and the production efficiency of the porcelain insulator.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary equipment for industrial furnaces, specifically to a sintering support for a tunnel furnace used in tunnel furnace sintering operations. Background Technology

[0002] In power systems, porcelain insulators are core insulating components, and their quality directly affects the safety and stability of the system. In the manufacturing process of porcelain insulators, the sintering and forming stage is particularly critical, as it determines the performance of the insulators.

[0003] Large-scale sintering of porcelain insulators is typically carried out in tunnel furnaces. To ensure sintering quality and production efficiency, porcelain insulators usually need to be kept upright during the sintering process to achieve the required mechanical strength and insulation properties after sintering. Sintering supports play a crucial role in the sintering process. They not only support the green blanks, preventing deformation, collapse, and toppling due to thermal stress changes or tunnel vehicle movement at high temperatures, but also ensure appropriate spacing between the green blanks to avoid adhesion or uneven heat distribution, thus ensuring consistent quality of the sintered products. Traditional sintering supports have simple structures and are difficult to adapt to the sintering requirements of porcelain insulator green blanks of various sizes and shapes. Since porcelain insulator green blanks come in diverse sizes and shapes, batch sintering is not limited to production of only one size type. This means that traditional sintering supports not only restrict production efficiency but may also affect sintering quality.

[0004] To overcome the above problems, this utility model proposes an innovative sintering support for tunnel furnaces, aiming to develop a support structure that can adapt to the sintering needs of green ceramic insulators of different sizes and shapes, improve production efficiency, and ensure sintering quality. Utility Model Content

[0005] The technical problem solved by this utility model is to provide a sintering support for a tunnel furnace, so as to solve the defects and problems in the above-mentioned technical background.

[0006] The technical problem solved by this utility model is achieved by the following technical solution:

[0007] A sintering support for a tunnel furnace includes a structural base and combined side baffles;

[0008] The surface of the structural base has a bearing plane for upright placement of porcelain insulator blanks; and several vertically arranged support rods are formed at the corners of the bearing plane; each support rod is provided with multiple first insertion holes, the multiple first insertion holes are spaced apart along the height direction of the support rod, and each first insertion hole penetrates the support rod laterally in the width direction of the structural base.

[0009] The combined side rails include end face rails and side rails; the cross section of the end face rail matches the first insertion hole, so that it can be laterally inserted and assembled on the uprights on the front and rear end faces of the structural base; the outer end of the end face rail is formed with a transverse through hole as a second insertion hole; after the end face rail is inserted on the corresponding upright, the corresponding second insertion hole is located on the outside of the upright; the cross section of the side rail matches the second insertion hole, and it can be laterally inserted and assembled on the outside of the second insertion hole at the position of the adjacent end face rail on the left and right sides of the structural base.

[0010] As a further limitation, the bottom of the structural base is provided with a traveling mechanism or is assembled to the traveling mechanism by a detachable assembly method;

[0011] The sintering support has matching docking assembly structures on its front and rear end faces, so that multiple sintering supports can be assembled in series in the tunnel furnace to meet the sintering requirements of different lengths.

[0012] As a further limitation, the surface of the structural base is provided with a fire-resistant bottom lining, and the uprights provided on the structural base extend upward through the fire-resistant bottom lining;

[0013] The refractory bottom lining is a detachable composite structure layer, including a base lining and a surface lining. The base lining is formed on the surface of the structural base and is made of multiple layers of refractory bricks. The surface lining is laid on the base lining and is made of asbestos fiberboard or ceramic fiberboard. It is laid flat on the surface of the base lining and the surface is leveled.

[0014] The surface liner is a spliced ​​panel, and different panels are formed with groove structures for accommodating porcelain insulator blanks of different sizes.

[0015] As a further limitation, the sintering support also includes a T-shaped insert as an auxiliary structure. The T-shaped insert includes a cylindrical structural block, and a flat stop is welded to one end face of the cylindrical structural block. The cross-section of the cylindrical structural block is consistent with that of the end face stop, and a second insertion hole is formed on the block structure on the other side.

[0016] As a further limitation, the distance between the second insertion hole on the T-shaped insert and the planar stop is 1.1 to 1.3 times the dimension of the upright rod in the width direction of the mechanism base.

[0017] As a further limitation, the first insertion hole and the second insertion hole are preferably rectangular holes.

[0018] As a further limitation, the end face stop and the side stop have pin insertion portions reserved on both sides of the rod body.

[0019] Beneficial Effects: This utility model's sintering support for a tunnel furnace, through its structural design, effectively supports and spaces porcelain insulator green blanks of different sizes and shapes, significantly improving the flexibility and adaptability of the sintering operation. The bearing plane and upright rod design on the structural base, combined with the layout of the first insertion hole, allow for flexible installation of the end-face stop bars according to actual needs. The end-face stop bars can be adjusted in position along the height direction of the first insertion hole and locked at the required height to accommodate porcelain insulator green blanks of different lengths. Through the combination of the T-shaped insert block and the second insertion hole in the side stop design, the assembly of the side stop bars becomes flexible, further improving the applicability and stability of the support, enabling it to flexibly handle porcelain insulator green blanks of different sizes, shapes, and sintering quantities. With the assistance of the traveling mechanism, the sintering support can easily move and adjust its position within the tunnel furnace to meet the requirements of the sintering process and ensure the consistency of the sintered product quality. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the front end face structure of a preferred embodiment of the present invention.

[0021] The components include: 1. Side retaining bar; 2. Upright support bar; 3. T-shaped insert; 4. Surface lining plate; 5. Foundation lining; 6. Structural base; 7. First insertion hole; 8. Second insertion hole; 9. Planar retaining block; 10. Columnar structural block; 11. Guide rail running wheel; 12. Side retaining plate; 13. End retaining bar. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0023] See Figure 1 A preferred embodiment of a sintering support for a tunnel furnace is disclosed. This sintering support is specifically designed for tunnel furnaces and is used in the sintering process of green porcelain insulator blanks. The tunnel furnace is equipped with a traveling guide rail arranged along its length at its bottom. The sintering support can support and space green porcelain insulator blanks of different sizes and shapes, and moves along the traveling guide rails to achieve continuous sintering operations.

[0024] In this embodiment, the sintering support has a structural base 6, which serves as the foundation of the entire support. The bottom of the structural base 6 is provided with guide rail wheels 11, which are mounted on the travel guide rail of the tunnel furnace to enable the support to move flexibly inside the tunnel furnace.

[0025] In addition, considering that the guide rail wheels 11 can create a sandwich space between the structural base 6 and the bottom surface of the tunnel furnace, in order to prevent sintering ash generated during the sintering process in the tunnel furnace from entering the sandwich space and obstructing the guide rail wheels 11, side baffles 12 are also provided on both sides of the structural base 6. The upper part of the side baffle 12 is fixed to the edge of the structural base 6, while the lower part has a side baffle surface. Only a small gap is left between the side baffle surface and the bottom surface of the tunnel furnace, which can effectively block sintering ash from entering the sandwich space without affecting the smooth movement of the structural base 6 in the tunnel furnace by the guide rail wheels 11.

[0026] When multiple sintering supports need to be connected in series, this can be achieved through a butt-joint assembly structure installed on the front and rear end faces of the sintering supports. This butt-joint assembly structure allows multiple sintering supports to be tightly connected, forming a single sintering unit, thus accommodating sintering requirements of different lengths. This design not only improves the flexibility of the sintering operation but also helps maintain temperature uniformity during the sintering process, further enhancing sintering quality.

[0027] The surface of the structural base 6 is covered with a refractory bottom lining, which consists of a base lining 5 and a surface lining 4. The base lining 5 is formed by stacking multiple layers of refractory bricks and is firmly fixed to the structural base 6, providing good thermal insulation and load-bearing performance. The surface lining 4 is laid on top of the base lining 5 and is made of asbestos fiberboard or ceramic fiberboard material with a leveled surface. The design of the surface lining 4 effectively avoids adhesion and uneven heat distribution during sintering, ensuring stable support for the porcelain insulator green blank during sintering and uniform heating, avoiding sintering defects caused by local overheating or insufficient temperature.

[0028] In different embodiments, there are two ways to place the porcelain insulator blank on the surface of the surface liner 4:

[0029] One method involves using an independent sintering base made of refractory material, which provides a stable placement surface. The green porcelain insulator blank is placed on the sintering base, and then the base, along with the green blank, is placed on the surface of the surface liner 4. The sintering base relies on its structural stability to ensure the stability of the green blank during sintering, preventing displacement or deformation.

[0030] Another approach is to design the surface liner 4 as a modular panel, allowing for adjustment of the liner area to accommodate sintering operations of different sizes. Customized groove structures are designed on different surfaces of the surface liner 4 to accommodate porcelain insulator green blanks of varying sizes. These groove structures are customized according to the specific dimensions and shape of the green blanks to ensure their stability during sintering and prevent displacement or deformation.

[0031] On the bearing plane of the structural base 6, several vertically arranged support rods 2 are provided. These support rods 2 and the structural base 6 are both steel structures, with their bottoms welded to the structural base 6 as a whole, and extending upwards through the refractory bottom lining. The length of the upper part of the support rod 2 extending outwards is greater than or equal to the height of the sintered porcelain insulator blank, so that the porcelain insulator blank can be effectively supported by the support rods 2 and the combined side blocks fixedly assembled by the support rods 2 when it is sintered upright on the surface of the surface lining plate 4.

[0032] In this embodiment, the support rod 2 has multiple first insertion holes 7 spaced along its height direction. These first insertion holes 7 extend laterally through the support rod 2 in the width direction of the structural base 6. The first insertion holes 7 allow the end face stop rod 13 in the combined side stop to be flexibly inserted at different height positions. The length of the end face stop rod 13 is designed to allow insertion between two adjacent support rods 2 and support by the support rod frame 2. The structural style of the end face stop rod 13 after being inserted on two support rods 2 is shown in the figure, to accommodate porcelain insulator green blanks of different lengths. The end face stop rod 13, by being inserted into the first insertion holes 7, is used to limit the end face of the porcelain insulator green blank in the sintering direction of the sintering chamber of the tunnel furnace, preventing it from tilting or shifting at the front and rear sides during sintering.

[0033] In this embodiment, the outer end of the end face stop 13 is formed with a second insertion hole 8. After the insertion assembly is completed on the upright frame 2, the second insertion hole 8 on the end face stop 13 is located at the outer edges of both sides of the structural base 6. The second insertion hole 8 is used for the assembly of the side stop 1 in the combined side stop, so that the side stop 1 can be inserted into the second insertion hole 8 of the adjacent end face stop 13, thereby forming an effective blockage on the left and right sides of the structural base 6 against the side of the green blank.

[0034] The insert-mounted assembly structure of the end face stop bar 13 and the side stop bar 1 allows for flexible adjustment of the position and number of side stop bars according to the specific size, shape and single sintering quantity of the porcelain insulator green blank, ensuring that the green blank remains stable during the sintering process.

[0035] When the corresponding porcelain insulator blank has a large size and height, it is only necessary to consider setting the end face stop 13 at the upper part of the support pole 2, while the lower part can use the T-shaped plug 3, which has a lower structural cost and better convenience. The structure of this T-shaped plug 3 includes a cylindrical structural block 10 and a flat stop 9. The cross section of the cylindrical structural block 10 is consistent with that of the end face stop 13, so that it can be inserted into the second insertion hole 8 in the same way as the end face stop 13. The flat stop 9 is used to abut against the inner pole surface of the support pole 2 in the manner shown in the figure after the cylindrical structural block 10 is inserted inside the first insertion hole 7, and to complete the insertion and assembly of the side stop 1 in the second insertion hole 8 outside the cylindrical structural block 10 in a similar manner to the end face stop 13.

[0036] The spacing between the second insertion hole 8 on the T-shaped plug 3 and the flat stop 9 is designed to be 1.1 to 1.3 times the width of the support rod 2. This spacing ensures that the T-shaped plug 3 can stably support the side stop 1 after assembly, while allowing for a certain degree of assembly flexibility to accommodate porcelain insulator blanks of different sizes. The use of the T-shaped plug 3 not only reduces costs but also improves the assembly efficiency and flexibility of the bracket.

[0037] In this embodiment, both the first insertion hole 7 and the second insertion hole 8 adopt a rectangular hole design. This design makes it easier and more stable for the end face stop bar 13 and the T-shaped insert 3 to be inserted and locked onto the support rod 2 and the end face stop bar 13, effectively preventing loosening or deformation under the high temperature environment of sintering, and ensuring the stability and safety of the sintering process.

[0038] In addition, to enhance the versatility and flexibility of the sintering support, in another embodiment, pre-reserved pin insertion positions can be provided on both sides of the rod body of the end face stop 13 and the side stop 1. This design allows users to further fix or adjust the position of the end face stop 13 and the side stop 1 according to actual needs through connecting parts such as pins, so as to adapt to porcelain insulator green blanks of different sizes, shapes and sintering quantities, further improving the adaptability and stability of the support.

[0039] In summary, the sintering support for a tunnel furnace of this utility model, through its innovative structural design, effectively supports and spacees porcelain insulator blanks of different sizes and shapes, significantly improving the flexibility and adaptability of sintering operations, ensuring the consistency of sintered product quality, and providing strong support for the manufacturing of porcelain insulators in power systems.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. Furthermore, it should be understood that after reading the technical content of this utility model, those skilled in the art can make various alterations, modifications, and / or variations to this utility model, and all such equivalent forms also fall within the scope of protection defined by the appended claims.

Claims

1. A sintering support for a tunnel furnace, characterized in that, Includes the structural base and combined side guards; The surface of the structural base has a bearing plane for upright placement of porcelain insulator blanks; and several vertically arranged support rods are formed at the corners of the bearing plane; each support rod is provided with multiple first insertion holes, the multiple first insertion holes are spaced apart along the height direction of the support rod, and each first insertion hole penetrates the support rod laterally in the width direction of the structural base. The combined side rails include end face rails and side rails; the cross section of the end face rail matches the first insertion hole, so that it can be laterally inserted and assembled on the uprights on the front and rear end faces of the structural base; the outer end of the end face rail is formed with a transverse through hole as a second insertion hole; after the end face rail is inserted on the corresponding upright, the corresponding second insertion hole is located on the outside of the upright; the cross section of the side rail matches the second insertion hole, and it can be laterally inserted and assembled on the outside of the second insertion hole at the position of the adjacent end face rail on the left and right sides of the structural base.

2. The sintering support for a tunnel furnace according to claim 1, characterized in that, The base of the structure is equipped with a traveling mechanism at its bottom or is assembled onto the traveling mechanism in a detachable manner.

3. The sintering support for a tunnel furnace according to claim 2, characterized in that, The sintering support has matching docking assembly structures on its front and rear end faces to facilitate the series assembly of multiple sintering supports in the tunnel furnace.

4. The sintering support for a tunnel furnace according to claim 1, characterized in that, The surface of the structural base is provided with a fire-resistant bottom lining, and the uprights on the structural base extend upward through the fire-resistant bottom lining.

5. The sintering support for a tunnel furnace according to claim 4, characterized in that, The refractory bottom lining is a detachable composite structure layer, including a base lining and a surface lining. The base lining is formed on the surface of the structural base and is made of multiple layers of refractory bricks. The surface lining is laid on the base lining and is made of asbestos fiberboard or ceramic fiberboard. It is laid flat on the surface of the base lining and the surface is leveled.

6. The sintering support for a tunnel furnace according to claim 5, characterized in that, The surface liner is a spliced ​​panel, and different panels are formed with groove structures for accommodating porcelain insulator blanks of different sizes.

7. The sintering support for a tunnel furnace according to claim 1, characterized in that, The sintering support also includes a T-shaped insert as an auxiliary structure. The T-shaped insert includes a cylindrical structural block with a flat stop welded to one end face of the cylindrical structural block. The cross-section of the cylindrical structural block is consistent with that of the end face stop, and a second insertion hole is formed on the block structure on the other side.

8. The sintering support for a tunnel furnace according to claim 7, characterized in that, The distance between the second insertion hole on the T-shaped insert and the flat stop is 1.1 to 1.3 times the dimension of the upright rod in the width direction of the mechanism base.

9. The sintering support for a tunnel furnace according to claim 1, characterized in that, The first insertion hole and the second insertion hole are rectangular holes.

10. The sintering support for a tunnel furnace according to claim 1, characterized in that, The end face stop and the side stop have pin insertion parts reserved on both sides of the rod body.

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