Heat-insulation energy-saving furnace cover device

Abstract

The utility model discloses a heat-insulation energy-saving furnace cover device, and particularly relates to the technical field of furnace covers, the heat-insulation energy-saving furnace cover device comprises a furnace cover body, a furnace cover fixing cylinder is welded at the bottom of the furnace cover body, a rock wool plate, a polystyrene plate and an aerogel plate are movably arranged in the furnace cover fixing cylinder from top to bottom, and an installation fixing plate is arranged at the bottom of the furnace cover fixing cylinder. An inner supporting plate is welded to the top of the mounting fixing plate. By means of the multi-layer heat insulation and sealing design, conduction and leakage of heat to the outside are greatly reduced, energy loss in the operation process of equipment is reduced, the heat energy utilization rate is improved, the furnace cover is particularly suitable for high-temperature furnace body equipment, the energy consumption cost is reduced, the surface temperature is reduced, and the energy loss is reduced; high-temperature gas is almost prevented from leaking through gaps, leakage of the high-temperature gas is effectively prevented, the risk that operators are scalded is avoided, and the use safety of equipment is improved.

Description

Technical Field

[0001] This utility model relates to the field of furnace cover technology, and more specifically, to a heat-insulating and energy-saving furnace cover device. Background Technology

[0002] In the industrial production field, high-temperature furnace equipment such as smelting furnaces, heating furnaces, and boilers are widely used in metallurgy, chemical industry, building materials and other industries. The furnace cover, as an important component, directly affects the energy utilization efficiency and operational safety of the equipment.

[0003] Traditional furnace cover devices often use a single material or a simple stacked insulation structure, such as using only rock wool or ceramic fiber as insulation material. Due to their limited insulation performance, they cannot effectively block the heat radiated and conducted by the heat source, resulting in excessively high surface temperature of the furnace cover. This not only causes a large amount of heat loss and increases the energy consumption cost of equipment operation, but also poses a safety hazard of burns to operators. At the same time, there is no seal between the furnace cover and the furnace body, and the leakage of high-temperature gas will not only cause energy waste. Utility Model Content

[0004] In order to overcome the problems and defects in the prior art, this utility model provides a heat-insulating and energy-saving furnace cover device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a heat-insulating and energy-saving furnace cover device, comprising a furnace cover body, wherein a furnace cover fixing cylinder is welded to the bottom of the furnace cover body;

[0006] The furnace cover fixing cylinder is equipped with rock wool board, polystyrene board and aerogel board that move from top to bottom. The bottom of the furnace cover fixing cylinder is equipped with a mounting plate. The top of the mounting plate is welded with an inner support plate. The furnace cover body is fixedly equipped with a refractory fiber insulation layer.

[0007] The top surface of the mounting plate is provided with a first threaded hole, and the bottom surface of the furnace cover fixing cylinder is provided with a threaded groove. Both the first threaded hole and the threaded groove are threaded with fixing bolts.

[0008] Preferably, the thickness of the aerogel board, polystyrene board, and rock wool board increases sequentially, and the aerogel board, polystyrene board, and rock wool board are all slidably connected to the inner wall of the furnace cover fixing cylinder.

[0009] Preferably, a sealing and heat-insulating rubber ring is provided at the bottom of the furnace cover body, and the sealing and heat-insulating rubber ring is movably sleeved on the outside of the furnace cover fixing cylinder.

[0010] Preferably, the sealing and heat insulation ring and the bottom surface of the furnace cover body are both provided with a second threaded hole, and a threaded post is threadedly connected inside the second threaded hole, and a fixing knob is fixedly connected to the top of the threaded post.

[0011] Preferably, the number of the fixed knob, the threaded post, and the second threaded hole are all set to be multiple, and the fixed knob is rotatably connected to the furnace cover body.

[0012] Preferably, a fixed lifting rod is fixedly connected to the top of the furnace cover body.

[0013] Preferably, the sealing and heat-insulating ring is made of rubber.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] 1. The fixed cylinder is lined with rock wool board, polystyrene board, and aerogel board from top to bottom, with increasing thickness to form a gradient insulation system. The furnace cover body is lined with a refractory fiber insulation layer. Even if a small amount of heat is conducted to the furnace cover body through the metal frame of the fixed cylinder, it can be further blocked, and only a very small amount of heat is transferred to the outside of the furnace cover. This significantly reduces the surface temperature and energy loss. The rubber ring is fitted on the outside of the fixed cylinder to fill the gap between the furnace cover and the furnace body, forming a tight seal. This almost eliminates the leakage of high-temperature gas through the gaps, effectively preventing the leakage of high-temperature gas, avoiding the risk of burns to operators, and improving the safety of equipment use. Through the multi-layer insulation and sealing design, the conduction and leakage of heat to the outside are greatly reduced, reducing energy loss during equipment operation and improving thermal energy utilization. It is especially suitable for high-temperature furnace equipment and can significantly reduce energy consumption costs.

[0016] 2. By connecting the mounting plate to the threaded groove at the bottom of the fixed cylinder, the closed structure at the bottom of the fixed cylinder can be quickly disassembled, making it easy to remove the internal rock wool board, polystyrene board and aerogel board for inspection, cleaning or replacement. The rubber ring material has heat insulation properties, which can reduce heat conduction at the contact surface between the furnace cover and the furnace body. Its elastic properties can also adapt to the slight deformation of the equipment, avoid structural damage caused by rigid collisions, and extend the service life of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram showing the disassembled structure of the sealing and heat-insulating rubber ring and the furnace cover body of this utility model.

[0019] Figure 3 This is a schematic diagram showing the disassembled structure of the furnace cover fixing cylinder and the mounting fixing plate of this utility model.

[0020] Figure 4 For the present utility model Figure 3 A schematic diagram of the structure viewed from below.

[0021] Figure 5 This is a front cross-sectional view of the present invention.

[0022] The attached diagram is labeled as follows: 1. Furnace cover body; 2. Furnace cover fixing cylinder; 3. Rock wool board; 4. Polystyrene board; 5. Aerogel board; 6. Mounting fixing plate; 7. Inner support plate; 8. Refractory fiber insulation layer; 9. First threaded hole; 10. Threaded groove; 11. Fixing bolt; 12. Sealing insulation ring; 13. Second threaded hole; 14. Threaded post; 15. Fixing knob; 16. Fixing lifting rod. Detailed Implementation

[0023] 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.

[0024] As attached Figure 1-5 The heat-insulating and energy-saving furnace cover device shown includes a furnace cover body 1, and a furnace cover fixing cylinder 2 is welded to the bottom of the furnace cover body 1;

[0025] Inside the furnace cover fixing cylinder 2, rock wool board 3, polystyrene board 4 and aerogel board 5 are installed from top to bottom. A mounting plate 6 is installed at the bottom of the furnace cover fixing cylinder 2. An inner support plate 7 is welded to the top of the mounting plate 6. A refractory fiber insulation layer 8 is fixedly installed inside the furnace cover body 1.

[0026] The top surface of the mounting plate 6 is provided with a first threaded hole 9, and the bottom surface of the furnace cover fixing cylinder 2 is provided with a threaded groove 10. Both the first threaded hole 9 and the threaded groove 10 are threaded with fixing bolts 11.

[0027] As attached Figure 4 , 5 As shown, the thickness of aerogel board 5, polystyrene board 4 and rock wool board 3 increases sequentially. All three aerogel board 5, polystyrene board 4 and rock wool board 3 are slidably connected to the inner wall of the furnace cover fixing cylinder 2, which facilitates the removal and replacement of aerogel board 5, polystyrene board 4 and rock wool board 3.

[0028] As attached Figure 1-5 As shown, a sealing and heat-insulating ring 12 is provided at the bottom of the furnace cover body 1. The sealing and heat-insulating ring 12 is movably sleeved on the outside of the furnace cover fixing cylinder 2. A second threaded hole 13 is provided on the bottom surface of both the sealing and heat-insulating ring 12 and the furnace cover body 1. A threaded post 14 is threaded inside the second threaded hole 13. A fixing knob 15 is fixedly connected to the top of the threaded post 14. The sealing and heat-insulating ring 12 ensures the sealing effect between the furnace cover body 1 and the furnace body.

[0029] As attached Figure 1-5As shown, the number of fixed knobs 15, threaded posts 14 and second threaded holes 13 are all set to multiple. The fixed knobs 15 are rotatably connected to the furnace cover body 1, which facilitates the improvement of the uniformity of force on the overall sealing and heat insulation ring 12.

[0030] As attached Figure 1-5 As shown, a fixed lifting rod 16 is fixedly connected to the top of the furnace cover body 1.

[0031] As attached Figure 1-5 As shown, the sealing and heat insulation ring 12 is made of rubber, which ensures the heat insulation effect of the sealing and heat insulation ring 12.

[0032] The working principle of this utility model is as follows: The bottom of the furnace cover body 1 is fixed by a furnace cover fixing cylinder 2 welded together to form the main frame of the device. The inside of the fixing cylinder is used to accommodate multiple layers of heat insulation materials. The bottom is closed by a mounting fixing plate 6. The first threaded hole 9 at the top of the mounting fixing plate 6 is aligned with the threaded groove 10 at the bottom of the furnace cover fixing cylinder 2. The fixing cylinder is connected by a fixing bolt 11 to ensure that the fixing cylinder and the mounting plate are tightly fixed to prevent the heat insulation materials from falling off. Inside the fixing cylinder 2, rock wool board 3, polystyrene board 4, and aerogel board 5 are arranged sequentially from top to bottom, with the thickness of the three increasing sequentially. The heat source radiates upward through the furnace opening. The heat is weakened layer by layer through the rock wool board 3, polystyrene board 4, and aerogel board 5. A small amount of residual heat is conducted to the furnace cover body 1 through the metal frame of the fixing cylinder 2, but is further blocked by the internal refractory fiber heat insulation layer 8. Finally, very little heat is transferred to the outside of the furnace cover body 1. Through the tight sealing of the sealing ring 12, high-temperature gas leakage through gaps is almost eliminated, avoiding burns or energy loss to the operators.

[0033] The sealing and heat-insulating rubber ring 12 is sleeved on the outside of the furnace cover fixing cylinder 2. The bottom is fixed to the furnace cover body 1 through the second threaded hole 13 and the threaded post 14, and the top is tightened and fixed by the fixing knob 15 to ensure that the sealing and heat-insulating rubber ring 12 is tightly fitted to the furnace body contact surface. The rubber sealing and heat-insulating rubber ring 12 fills the gap between the furnace cover and the furnace body to prevent high-temperature gas leakage and reduce heat conduction through the contact surface. The elastic material can adapt to the small deformation of the furnace cover and the furnace body to avoid rigid collision damage. The multiple threaded posts 14 are evenly stressed to ensure that the compression of the sealing and heat-insulating rubber ring 12 is consistent throughout, thereby improving the sealing reliability.

[0034] Both the fixing bolt 11 and the threaded post 14 are threaded connections, which allow for quick disassembly of the furnace cover fixing cylinder 2 and the sealing ring 12, facilitating later maintenance or replacement of the heat insulation material.

[0035] In conclusion, the above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A heat-insulating and energy-saving furnace cover device, comprising a furnace cover body (1), characterized in that: The bottom of the furnace cover body (1) is welded with a furnace cover fixing cylinder (2); The furnace cover fixing cylinder (2) is provided with rock wool board (3), polystyrene board (4) and aerogel board (5) moving from top to bottom. The furnace cover fixing cylinder (2) is provided with a mounting fixing plate (6) at the bottom. The mounting fixing plate (6) is welded with an inner support plate (7) at the top. The furnace cover body (1) is provided with a refractory fiber insulation layer (8) inside. The top surface of the mounting plate (6) is provided with a first threaded hole (9), and the bottom surface of the furnace cover fixing cylinder (2) is provided with a threaded groove (10). The first threaded hole (9) and the threaded groove (10) are both threaded with fixing bolts (11).

2. The heat-insulating and energy-saving furnace cover device according to claim 1, characterized in that: The thickness of the aerogel board (5), polystyrene board (4) and rock wool board (3) increases sequentially, and the aerogel board (5), polystyrene board (4) and rock wool board (3) are all slidably connected to the inner wall of the furnace cover fixing cylinder (2).

3. The heat-insulating and energy-saving furnace cover device according to claim 1, characterized in that: The bottom of the furnace cover body (1) is provided with a sealing and heat-insulating rubber ring (12), which is movably sleeved on the outside of the furnace cover fixing cylinder (2).

4. The heat-insulating and energy-saving furnace cover device according to claim 3, characterized in that: The sealing heat insulation ring (12) and the bottom surface of the furnace cover body (1) are both provided with a second threaded hole (13). The second threaded hole (13) is threaded with a threaded post (14). The top of the threaded post (14) is fixedly connected with a fixing knob (15).

5. The heat-insulating and energy-saving furnace cover device according to claim 4, characterized in that: The number of the fixed knob (15), the threaded post (14), and the second threaded hole (13) are all set to be multiple, and the fixed knob (15) is rotatably connected to the furnace cover body (1).

6. The heat-insulating and energy-saving furnace cover device according to claim 1, characterized in that: The top of the furnace cover body (1) is fixedly connected to a fixed lifting rod (16).

7. The heat-insulating and energy-saving furnace cover device according to claim 3, characterized in that: The sealing and heat insulation ring (12) is made of rubber.

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