Lining structure for an industrial furnace

Abstract

The utility model belongs to industrial electric furnace technical field, concretely is a kind of furnace lining structure of industrial furnace, including furnace brick, the inside of furnace brick is equipped with multiple groups of resistance wire, the top of furnace brick is equipped with the steel furnace plate that can be horizontally pulled out, the top surface middle part of steel furnace plate is welded and connected welding plate, the top surface middle part of welding plate is fixed rectangular frame, the inside of rectangular frame is inserted rectangular positioning column, the top of positioning column is fixedly connected fixed plate, the top of steel furnace plate is placed with storage rack, and fixed plate is fixed in the bottom surface middle part of storage rack.The utility model pulls out steel furnace plate as furnace lining part to hearth outside, then positioning column is inserted with the rectangular frame of steel furnace plate top corresponding, so that storage rack can be placed in the central position of steel furnace plate, then steel furnace plate is pushed into hearth inside along with storage rack, so that workpiece can be heated in central area, improve heating uniformity, and simultaneously fast positioning structure avoids the situation of time-consuming and laborious artificial adjustment.

Description

Technical Field

[0001] This utility model belongs to the field of industrial electric furnace technology, specifically relating to a furnace lining structure for an industrial furnace. Background Technology

[0002] The placement of material racks in traditional industrial electric furnaces (especially resistance furnaces) relies primarily on manual operation. Since the racks need to be centered in the furnace to ensure uniform heating, current designs lack mechanical positioning structures. Manual placement easily leads to misalignment, resulting in uneven heating of the materials (overheating at the edges or insufficient heating in the center), affecting product quality consistency. Currently, adjustments are made based on manual experience, requiring repeated repositioning when manually pushing and pulling the racks, which is time-consuming, labor-intensive, and poses safety risks in high-temperature environments. While some existing technologies use guide rails or inductive markers for positioning, these solutions suffer from complex structures, insufficient high-temperature resistance, or excessive costs, hindering their widespread adoption in industrial settings. Therefore, a furnace lining structure that facilitates rapid positioning is urgently needed. Utility Model Content

[0003] To address the aforementioned problems in the existing technology, this utility model provides a furnace lining structure for an industrial furnace, which features easy and rapid positioning and strong practicality.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a furnace lining structure for an industrial furnace, comprising furnace bricks, multiple sets of resistance wires on the inner side of the furnace bricks, a horizontally pull-out steel furnace plate on the top of the furnace bricks, a welding plate welded to the center of the top surface of the steel furnace plate, a rectangular frame fixed to the center of the top surface of the welding plate, a rectangular positioning post inserted into the inner side of the rectangular frame, a fixing plate fixedly connected to the top of the positioning post, and a shelf placed on the top of the steel furnace plate, with the fixing plate fixed to the center of the bottom surface of the shelf.

[0005] As a preferred technical solution for the furnace lining structure of an industrial furnace according to this utility model, the shelf is provided with multiple layers of shelves, and the bottom center of the bottom surface of the lowest shelf is provided with a mounting hole that matches the fixing plate. The fixing plate is fixedly connected to the bottom center of the lowest shelf by bolts.

[0006] As a preferred technical solution for the furnace lining structure of an industrial furnace according to this utility model, the bottom dimension of the positioning column is adapted to the inner dimension of the rectangular frame, and the positioning column can move up and down inside the rectangular frame.

[0007] As a preferred technical solution for the furnace lining structure of an industrial furnace according to this utility model, a U-shaped positioning plate is fixed to the bottom surface of one end of the steel furnace plate. The U-shaped positioning plate is inserted between the furnace bricks on both sides, and the width of the U-shaped positioning plate is adapted to the spacing between the furnace bricks on both sides.

[0008] As a preferred technical solution for the furnace lining structure of an industrial furnace according to this utility model, the other side wall of the steel furnace plate is provided with a pulling opening for pulling the steel furnace plate out of the furnace chamber.

[0009] As a preferred technical solution for the furnace lining structure of an industrial furnace according to this utility model, the welding plate, rectangular frame, positioning column and fixing plate are all made of high temperature resistant steel.

[0010] Compared with the prior art, the beneficial effects of this utility model are: This solution utilizes a horizontally retractable steel furnace plate and a positioning structure welded to the top surface of the steel furnace plate. When heating the workpiece, the operator bolts a fixing plate with positioning posts to the center of the bottom surface of the workpiece-placement rack. Then, the steel furnace plate, which serves as the furnace lining, is pulled out to the outside of the furnace. The positioning posts are then inserted into the corresponding rectangular frame on the top of the steel furnace plate, allowing the rack to be placed in the center of the steel furnace plate. The steel furnace plate, along with the rack, is then pushed into the inside of the furnace, ensuring that the workpiece is heated in the central area, improving heating uniformity. Furthermore, the rapid positioning structure avoids the time-consuming and labor-intensive manual adjustments. Attached Figure Description

[0011] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the furnace brick structure of this utility model; Figure 3 This is a three-dimensional sectional view of the steel furnace plate and storage rack of this utility model; Figure 4 This utility model Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram of the bottom structure of the steel furnace plate of this utility model.

[0012] In the diagram: 1. Furnace brick; 2. Steel furnace plate; 21. Pulling opening; 22. Welding plate; 23. Rectangular frame; 24. Positioning column; 25. Fixing plate; 26. Bolt; 27. U-shaped positioning plate; 3. Shelf; 31. Shelf plate; 4. Resistance wire. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, specifically, a furnace lining structure for an industrial furnace includes a furnace brick 1. Multiple sets of resistance wires 4 are provided on the inner side of the furnace brick 1. A horizontally pull-out steel furnace plate 2 is provided on the top of the furnace brick 1. The furnace brick 1 and the steel furnace plate 2 also serve as furnace lining structures. The layout and operating principle of the furnace brick 1 and resistance wires 4 can be referenced from existing industrial electric furnaces, which are considered existing technologies and therefore not elaborated upon here. A welding plate 22 is welded to the center of the top surface of the steel furnace plate 2, or it can be connected by bolts. A rectangular frame 23 is fixed to the center of the top surface of the welding plate 22. A rectangular positioning post 24 is inserted into the inner side of the rectangular frame 23. The positioning post 24 can detach from the rectangular frame 23. A fixing plate 25 is fixedly connected to the top of the positioning post 24. A shelf 3 is placed on the top of the steel furnace plate 2. The fixing plate 25 is fixed to the center of the bottom surface of the shelf 3. The welding plate 22, rectangular frame 23, positioning post 24, and fixing plate 25 are all made of high-temperature resistant steel. Through the above technical solution, the furnace lining steel plate inside the furnace chamber is designed to be horizontally pulled out and moved to the outside of the furnace chamber. A rectangular frame 23 is fixed on it by welding or bolting. A positioning column 24 is bolted to the center of the bottom surface of the external shelf 3. When placing the workpiece, the steel furnace plate 2 is pulled out to the outside. Then, the shelf 3 is placed at the center of the top surface of the steel furnace plate 2 through the insertion of the positioning column 24 and the rectangular frame 23. Then, the steel furnace plate 2 is pushed back into the furnace chamber, so that the workpiece is in the center position when heated, and the heating is uniform. At the same time, the quick positioning method avoids the time-consuming and laborious manual adjustment, which is highly practical.

[0015] Furthermore, the bottom dimension of the positioning column 24 is adapted to the inner dimension of the rectangular frame 23. The positioning column 24 can move up and down inside the rectangular frame 23. By inserting the positioning column 24 into the rectangular frame 23, the position of the shelf 3 can be quickly and easily determined. At the same time, it can be easily removed later. The length of the positioning column 24 is less than the bottom support leg of the shelf 3. That is, after the positioning column 24 is inserted into the inner side of the rectangular frame 23, the support leg of the shelf 3 can be stably supported on the top surface of the steel furnace plate 2.

[0016] Further, refer to the appendix. Figure 4The other side wall of the furnace plate 2 is provided with a pull-out port 21, which is used to pull the furnace plate 2 out of the furnace chamber. In actual operation, the operator can use external tools, hooks, metal rods and other readily available tools to pull the furnace plate 2. The appropriate tool can be selected flexibly according to the actual situation on site. A U-shaped positioning plate 27 is fixed to the bottom surface of one end of the furnace plate 2. The U-shaped positioning plate 27 is inserted between the furnace bricks 1 on both sides. The width of the U-shaped positioning plate 27 is adapted to the spacing of the furnace bricks 1 on both sides. Through the U-shaped positioning plate 27, the furnace plate 2 can be pushed to the appropriate position (it will not be pulled out of the electric furnace when pulled out). That is, when the U-shaped positioning plate 27 contacts the innermost furnace brick 1, it means that the furnace plate 2 has been pushed to the appropriate position. At the same time, it makes the furnace plate 2 less likely to shake or tilt excessively. There can be a certain gap between the U-shaped positioning plate 27 and the furnace brick 1 to avoid jamming due to high temperature deformation. Slight tilting will not affect the heating effect of the workpiece.

[0017] Furthermore, the shelf 3 is provided with multiple shelves 31. The bottom center of the bottom shelf 31 has a mounting hole that matches the fixing plate 25. The fixing plate 25 is fixedly connected to the bottom center of the bottom shelf 31 by bolts 26. The fixing plate 25 is connected to the shelf 3 by bolts 26. Different sizes of shelf 3 can be replaced according to the needs of the workpiece. It is only necessary to fix the fixing plate 25 to the bottom center of the shelf 3. It is flexible in use.

[0018] The working principle and usage process of this utility model are as follows: When processing workpieces using an industrial electric furnace, the operator first selects a suitable model of rack 3 according to the workpiece. Then, the fixing plate 25 is fixedly installed in the middle of the bottom surface of the lowest rack plate 31 of the rack 3 using bolts 26. After placing the workpiece on the rack 3 and inserting the rack 3 into the furnace chamber, the operator first opens the furnace chamber and pulls out the inner steel furnace plate 2. Then, the positioning post 24 on the bottom surface of the fixing plate 25 of the rack 3 is inserted into the corresponding rectangular frame 23 on the top surface of the steel furnace plate 2, so that the rack 3 can be located as centrally as possible in the steel furnace plate 2. Then, the operator pushes the steel furnace plate 2 back into the furnace chamber until the U-shaped positioning plate 27 abuts against the innermost furnace brick 1, so that the steel furnace plate 2 moves the rack 3 to a suitable position. After closing the furnace door for heating, the rack 3 and the workpiece can be in the central area, and the heating is uniform. The overall tool modification cost is low, the operation is convenient and quick, and the practicality is strong.

[0019] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A furnace lining structure for an industrial furnace, comprising furnace bricks (1), characterized in that: The inner side of the furnace brick (1) is provided with multiple sets of resistance wires (4), and the top of the furnace brick (1) is provided with a horizontally pullable steel furnace plate (2). A welding plate (22) is welded to the middle of the top surface of the steel furnace plate (2). A rectangular frame (23) is fixed to the middle of the top surface of the welding plate (22). A rectangular positioning column (24) is inserted into the inner side of the rectangular frame (23). A fixing plate (25) is fixedly connected to the top of the positioning column (24). A shelf (3) is placed on the top of the steel furnace plate (2). The fixing plate (25) is fixed to the middle of the bottom surface of the shelf (3).

2. The furnace lining structure of an industrial furnace according to claim 1, characterized in that: The shelf (3) is provided with multiple shelves (31). The bottom center of the bottom shelf (31) is provided with a mounting hole that matches the fixing plate (25). The fixing plate (25) is fixedly connected to the bottom center of the bottom shelf (31) by bolts (26).

3. The furnace lining structure of an industrial furnace according to claim 2, characterized in that: The bottom dimension of the positioning post (24) is adapted to the inner dimension of the rectangular frame (23), and the positioning post (24) can move up and down inside the rectangular frame (23).

4. The furnace lining structure of an industrial furnace according to claim 3, characterized in that: A U-shaped positioning plate (27) is fixed to one end of the bottom surface of the steel furnace plate (2). The U-shaped positioning plate (27) is inserted between the furnace bricks (1) on both sides. The width of the U-shaped positioning plate (27) is adapted to the spacing between the furnace bricks (1) on both sides.

5. The furnace lining structure of an industrial furnace according to claim 4, characterized in that: The other side wall of the steel furnace plate (2) is provided with a pulling opening (21) for pulling the steel furnace plate (2) out of the furnace chamber.

6. The furnace lining structure of an industrial furnace according to claim 5, characterized in that: The welding plate (22), rectangular frame (23), positioning post (24) and fixing plate (25) are all made of high temperature resistant steel.

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