Energy-saving sealing structure of high-temperature furnace kiln

Abstract

This utility model discloses an energy-saving sealing structure for high-temperature furnaces, relating to the field of energy-saving technology for high-temperature furnaces. It includes a plate frame positioned at the edge of the furnace door, the plate frame having a groove; a U-shaped plate is placed within the groove, and a sealing rope is embedded within the U-shaped plate, protruding to the outside of the U-shaped plate; a spring is connected to the side of the U-shaped plate facing the bottom of the groove; and an adjusting bolt supporting the spring is provided on the plate frame. This utility model changes the furnace door seal from a fixed type to an adjustable type, and from a fixed structure pressing to spring-loaded pressing, increasing the adjustable length and achieving a tighter fit. The optimized structure prevents furnace door leakage, saves gas, reduces gas consumption per unit area, and achieves energy conservation and environmental protection. It also has the advantages of simple structure, easy implementation, low cost, and significant effects.

Description

Technical Field

[0001] This utility model relates to the field of energy-saving technology for high-temperature furnaces and kilns, and in particular to an energy-saving sealing structure for high-temperature furnaces and kilns. Background Technology

[0002] Current furnace door sealing technology: A fixed furnace door sealing frame is added to the aluminum melting furnace door. Aluminum silicate fiber rope is embedded in the groove of the sealing frame. Under the action of a clamping device, the furnace door sealing frame is compressed, and the aluminum silicate fiber rope adheres tightly to the cast iron bricks of the furnace door, achieving a sealing effect. Currently, we have found that during production, especially after the furnace has been in use for one year, the furnace door seal is generally not tight, resulting in positive pressure arcing, causing heat loss and increasing fuel consumption per unit area. Main problems: Heat deformation of the furnace door bricks and sealing frame, wear of the aluminum silicate fiber rope, leading to poor sealing and positive pressure arcing. Utility Model Content

[0003] The purpose of this utility model is to provide an energy-saving sealing structure for high-temperature furnaces and kilns in order to solve at least one of the problems in the prior art mentioned above.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A high-temperature furnace energy-saving sealing structure includes a plate frame set at the edge of the furnace door, the plate frame having a groove; a U-shaped plate is placed in the groove, a sealing rope is embedded in the U-shaped plate, the sealing rope protrudes to the outside of the U-shaped plate, a spring is connected to the side of the U-shaped plate facing the bottom of the groove, and the plate frame is provided with adjusting bolts to support the spring.

[0005] Furthermore, the sealing rope is an aluminum silicate fiber rope.

[0006] Furthermore, the U-shaped plate is provided with steel nails for inserting sealing ropes.

[0007] Furthermore, the U-shaped plate is provided with a steel sleeve on the side facing the bottom of the groove, and the steel sleeve surrounds the spring.

[0008] Furthermore, a washer is connected to the end of the spring away from the U-shaped plate, and the adjusting bolt contacts the washer.

[0009] Furthermore, a reinforcing nut is connected to the outside of the adjusting bolt.

[0010] Furthermore, the plate frame includes a liner plate connected to the furnace door and an L-shaped plate connected to the outside of the liner plate, with the groove formed between the L-shaped plate and the liner plate.

[0011] Furthermore, the L-shaped plate is connected to the middle of the liner, a reinforcing plate is connected between the liner and the L-shaped plate, and the liner is connected to the furnace door by fastening bolts.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model changes the furnace door seal from a fixed type to an adjustable type, and from a fixed structure pressing to a spring-loaded pressing, increasing the length adjustment and achieving a tighter fit. The optimized structure prevents furnace door fire and gas leakage, saves gas, reduces gas consumption per unit, and is energy-saving and environmentally friendly. During use, it reduces the wear of the sealing rope, which helps extend the service life of the sealing rope. It also has the advantages of simple structure, easy implementation, low cost, and obvious effect. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the original furnace door structure.

[0015] Figure 3 This is a schematic diagram of the original furnace door edge structure.

[0016] Figure 4 This is a schematic diagram of the original furnace door sealing structure.

[0017] In the diagram: 1. Plate frame; 2. U-shaped plate; 3. Sealing rope; 4. Spring; 5. Adjusting bolt; 6. Steel nail; 7. Steel sleeve; 8. Gasket; 9. Reinforcing nut; 101. Liner plate; 102. Connecting plate; 103. Side plate; 104. Reinforcing plate; 105. Fastening bolts. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0019] Specific embodiments of the energy-saving sealing structure for high-temperature furnaces and kilns provided by this utility model: Please see Figures 1-4 The high-temperature furnace energy-saving sealing structure improves the original furnace door sealing structure, changing the fixed type to an adjustable type with a spring 4. It includes a plate frame 1 set on the edge of the furnace door, with grooves on the plate frame 1.

[0020] The frame 1 includes a liner 101 connected to the furnace door and an L-shaped plate connected to the outer side of the liner 101. A groove is formed between the L-shaped plate and the liner 101, with the groove opening facing the outer edge of the furnace door. Both the liner 101 and the L-shaped plate are steel plates. The liner 101 is fitted to one side of the furnace door, specifically, the liner 101 is connected to the furnace door by fastening bolts 105. The L-shaped plate is connected to the middle of the liner 101, and a reinforcing plate 104 is connected between the liner 101 and the L-shaped plate. The reinforcing plate 104 is a triangular steel plate located on the side of the L-shaped plate facing away from the groove. The fastening bolts 105 are located at the end of the liner 101 furthest from the groove.

[0021] The L-shaped plate is made of 8mm steel plate; the L-shaped plate includes a connecting plate 102 that is perpendicularly connected to the middle of the liner 101 and a side plate 103 that is perpendicularly connected to the end of the connecting plate 102. The side plate 103, the connecting plate 102 and the liner 101 form a groove at one end. Figure 3 The image shows a cross-sectional view, where the groove is a long, narrow groove extending from the edge of the furnace door.

[0022] A U-shaped plate 2, made of 5mm steel plate, is placed inside the groove. The U-shaped plate 2 is in frictional contact with the inner wall of the groove, that is, the two sides of the U-shaped plate 2 are in frictional contact with the liner 101 and the side plate 103 respectively. The U-shaped plate 2 can move within the groove and be inserted into the groove to different depths. Adapted to the groove, the U-shaped plate 2 has a long strip structure, and includes several U-shaped plates arranged along the groove.

[0023] A sealing rope 3 is embedded within the U-shaped plate 2. The sealing rope 3 is made of aluminosilicate fiber rope, which is a braided rope made primarily of aluminosilicate fiber. It has characteristics such as high temperature resistance, low thermal conductivity, thermal shock resistance, and low heat capacity. The sealing rope 3 protrudes to the outside of the U-shaped plate 2, and its outer side is in close contact with the cast iron bricks of the furnace door to seal the gaps in the furnace door. This achieves the effects of preventing fire and gas leakage from the furnace door, saving gas, reducing gas consumption per unit, and promoting energy conservation and environmental protection.

[0024] The U-shaped plate 2 is equipped with steel nails 6 for inserting the sealing rope 3. In this embodiment, the steel nails 6 are connected to the middle of the U-shaped plate 2 and are parallel to both ends of the U-shaped plate 2. The steel nails 6 reinforce the sealing rope 3 and reduce the phenomenon of the sealing rope 3 falling off or misaligning.

[0025] A spring 4 is connected to the side of the U-shaped plate 2 facing the bottom of the groove. A steel sleeve 7 is provided on the side of the U-shaped plate 2 facing the bottom of the groove. The steel sleeve 7 surrounds the spring 4 with a narrow gap between it and the outer side of the spring 4, allowing the spring 4 to extend and contract. When the spring 4 is compressed to its limit, there is no gap between the outer side of the spring 4 and the inner wall of the steel sleeve 7. The steel sleeve 7 is used to limit the movement of the spring 4, improve the stability of its extension and contraction, and restrict its bending and torsion.

[0026] The plate frame 1 is equipped with an adjusting bolt 5 to support the spring 4. In this embodiment, the adjusting bolt 5 passes through the connecting plate 102 and is threadedly connected to the connecting plate 102. A reinforcing nut 9 is connected to the outside of the adjusting bolt 5. The reinforcing nut 9 is located outside the groove of the connecting plate 102. After determining the position of the adjusting bolt 5, tighten the reinforcing nut 9 so that the reinforcing nut 9 is close to the connecting plate 102. This can prevent the adjusting bolt 5 from loosening and ensure the stability of the adjusting bolt 5 in supporting the spring 4.

[0027] Springs 4, steel sleeves 7, and adjusting bolts 5 are arranged in a one-to-one correspondence. Each U-shaped plate 2 is connected to at least two to three springs 4, and adjusting bolts 5 are set corresponding to springs 4. A washer 8 is connected to the end of spring 4 away from U-shaped plate 2, and the adjusting bolt 5 contacts the washer 8. The washer 8 can be arranged in a one-to-one correspondence with springs 4 and the number of washer 8 can be the same; the washer 8 can also be long strip-shaped and correspond to U-shaped plate 2, with each washer 8 simultaneously connected to all springs 4 on one U-shaped plate 2. In some other embodiments, the adjusting bolt 5 can be rotatably connected to the washer 8.

[0028] Installation process: Process plate frame 1, and install plate frame 1 onto furnace door using fastening bolts 105; install spring 4, steel sleeve 7, and steel nail 6 on U-shaped plate 2, with spring 4 connected to washer 8; install adjusting bolt 5 and reinforcing nut 9; insert sealing rope 3 into U-shaped plate 2 with steel nail 6; position spring 4 corresponding to adjusting bolt 5, and press U-shaped plate 2 into groove of plate frame 1.

[0029] When the furnace door is closed, spring 4 is compressed, ensuring the sealing aluminum silicate fiber rope remains tightly fitted to the cast iron bricks of the furnace door. After a period of production, wear may occur on the aluminum silicate fiber rope. Adjusting bolt 5 can be tightened a few turns to allow the sealing aluminum silicate fiber rope to be adjusted outwards, still maintaining a tight fit with the cast iron bricks of the furnace door. This prevents flame and gas leakage from the furnace door, reducing gas consumption per unit area. Compared to the original sealing structure, because the sealing aluminum silicate fiber rope is supported by spring 4, wear on the rope is reduced during furnace door opening and closing, decreasing the frequency of replacement.

[0030] 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 make modifications to the technical solutions described in the foregoing embodiments without creative effort, 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 high-temperature furnace energy-saving sealing structure, characterized in that, The device includes a plate frame (1) set at the edge of the furnace door, the plate frame (1) having a groove; a U-shaped plate (2) is placed in the groove, a sealing rope (3) is embedded in the U-shaped plate (2), the sealing rope (3) protrudes to the outside of the U-shaped plate (2), a spring (4) is connected to the side of the U-shaped plate (2) facing the bottom of the groove, and an adjusting bolt (5) supporting the spring (4) is provided on the plate frame (1).

2. The energy-saving sealing structure for high-temperature furnaces and kilns according to claim 1, characterized in that, The sealing rope (3) is an aluminum silicate fiber rope.

3. The energy-saving sealing structure for high-temperature furnaces and kilns according to claim 1 or 2, characterized in that, The U-shaped plate (2) is provided with steel nails (6) for inserting sealing ropes (3).

4. The energy-saving sealing structure for high-temperature furnaces and kilns according to claim 1, characterized in that, The U-shaped plate (2) is provided with a steel sleeve (7) on the side facing the bottom of the groove, and the steel sleeve (7) surrounds the spring (4).

5. The energy-saving sealing structure for high-temperature furnaces and kilns according to claim 1, characterized in that, The spring (4) is connected to a washer (8) at the end away from the U-shaped plate (2), and the adjusting bolt (5) is in contact with the washer (8).

6. The energy-saving sealing structure for high-temperature furnaces and kilns according to claim 1, characterized in that, The adjusting bolt (5) is connected to a reinforcing nut (9) on its outer side.

7. The energy-saving sealing structure for high-temperature furnaces and kilns according to claim 1, characterized in that, The plate frame (1) includes a liner (101) connected to the furnace door and an L-shaped plate connected to the outside of the liner (101), with the groove formed between the L-shaped plate and the liner (101).

8. The energy-saving sealing structure for high-temperature furnaces and kilns according to claim 7, characterized in that, The L-shaped plate is connected to the middle of the liner (101), and a reinforcing plate (104) is connected between the liner (101) and the L-shaped plate. The liner (101) is connected to the furnace door by fastening bolts (105).

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