Efficient tundish heat accumulating type burner
The intermediate ladle thermal burner addresses inefficiencies in traditional burners by preheating air and storing waste heat, improving energy efficiency and reducing costs.
Patent Information
- Application Number
- CN202422179718.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-09-06
AI Technical Summary
Traditional burners have low energy utilization rate, low thermal efficiency, complex structure, difficult maintenance, and cannot meet the temperature and heat control requirements.
An efficient tundra heat storage burner is designed to store heat by mixing gas and air, using the heat storage body to store heat, realize efficient preheating of air and stable control of combustion reaction, combine with a refractory insulation layer to reduce heat loss, and prevent gas leakage through sealing components.
It improves energy utilization efficiency, reduces energy consumption, enhances heating effect and production safety, reduces production costs and maintenance difficulties, and meets different heating needs.
Smart Images
Figure CN223098006U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of metallurgical heating equipment, in particular to an efficient tundish regenerative burner. Background Technique
[0002] In the metallurgical industry, tundish heating is an essential link in the continuous casting process of steel. During the tundish heating process, the performance of the burner has an important impact on the energy utilization efficiency and the stability of the production process. Traditional burners often have problems such as low energy utilization rate and low thermal efficiency, which can lead to energy waste, increase production costs, and cannot meet the control requirements for temperature and heat in the production process. In addition, the structure of traditional burners is complex and difficult to maintain later. Content of the Utility Model
[0003] To solve some problems existing in the above-mentioned prior art, the utility model provides an efficient tundish regenerative burner.
[0004] To achieve the above object, the utility model provides an efficient tundish regenerative burner, including a burner body. The burner body includes an upper part, a middle part, and a lower part. A cover plate assembly is arranged between the upper part and the middle part, and a connecting plate is arranged between the middle part and the lower part. The upper part includes an air interface assembly, and a sealing assembly is arranged below the air interface assembly in a matching manner. The middle part includes an outer shell arranged on the outside, and a regenerator is arranged inside the outer shell. The middle part also includes a gas interface assembly and a regenerator inlet and outlet assembly. The lower part includes a central pipe, and a refractory heat insulation layer is arranged on the inner wall of the central pipe. The burner body also includes a cooperating pilot burner device.
[0005] When the utility model works, first, gas is supplied into the burner through the gas interface assembly. The gas enters the middle area of the burner through a preset channel. Air enters the upper part of the burner through the air interface assembly and is sealed by the sealing assembly to prevent gas leakage. The air interface assembly is designed in an L shape for easy access and operation. Then, when the preheated air passes through the regenerator in the middle housing, it is heated by the heat absorbed and stored by the regenerator, achieving efficient preheating of the air. The preheated air is mixed with the gas inside the burner. The mixed gas is ejected from the central pipe. The refractory heat insulation layer provided on the inner wall of the central pipe can effectively protect the central pipe and reduce heat loss. Under the guidance of the pilot burner device, the combustion is more complete. The waste gas generated by combustion is discharged through the regenerator inlet and outlet assembly. At the same time, the heat in these waste gases is absorbed and stored by the regenerator for the air preheating in the next cycle. The above process is continuously cycled. The gas and air are continuously supplied, and the combustion reaction continues. At the same time, the regenerator is continuously regenerated during the process of preheating the air and absorbing the heat of the waste gas. By adjusting the supply amounts of the gas and air, the intensity of the combustion reaction can be controlled to meet different heating requirements. Regularly checking the wear conditions of each component of the burner and cleaning the dust and impurities on the surface of the regenerator can maintain its efficient heat storage performance. Through the above work process, the high-efficiency tundish regenerative burner realizes the stable combustion of gas and the efficient preheating of air. At the same time, the regenerator is used for heat storage and reuse, improving the energy utilization efficiency and reducing energy consumption.
[0006] The beneficial effects of the utility model are as follows: it is a high-efficiency tundish regenerative burner, which significantly improves the energy utilization efficiency, reduces energy consumption, enhances the heating effect, makes the temperature in the tundish more uniform, improves the sealing performance of the burner, reduces heat loss, improves production safety, controls the intensity of the combustion reaction to meet different heating requirements. In addition, it also reduces the production cost and maintenance difficulty.
[0007] As a further improvement of the utility model, in order to ensure the structural stability and improve the use safety; the cover plate assembly includes a first cover plate and a second cover plate, and the sizes and shapes of the first cover plate and the second cover plate are the same. A nut fastening assembly is arranged on the first cover plate, and the first cover plate and the second cover plate are fixedly connected through the nut fastening assembly.
[0008] As a further improvement of the utility model, in order to improve the sealing performance at each part interface and reduce heat loss; a gas interface connection flange, a regenerator inlet and outlet connection flange, and an air interface connection flange are respectively arranged at the ends of the gas interface assembly, the regenerator inlet and outlet assembly, and the air interface assembly.
[0009] As a further improvement of the present utility model, in order to ensure the stable connection of the internal components of the burner; fastening bolts are provided on the connecting plate and are connected and fixed to the central pipe through the fastening bolts, and a plurality of such fastening bolts are provided.
[0010] As a further improvement of the present utility model, in order to achieve the tight assembly of each component, reduce the voids in the structure, lower the rejection rate and reduce the production cost; the outer shell adopts an integral casting structure, and sealing devices are provided at all connecting flange parts.
[0011] As a further improvement of the present utility model, in order to make the structure of the burner more regular, facilitate the layout and connection during installation, and also facilitate subsequent maintenance and repair work, reducing the complexity of operation; the air interface assembly is integrally L-shaped, and the air interface assembly, the gas interface assembly and the regenerator inlet and outlet assembly are all arranged in the same direction. Brief Description of the Drawings
[0012] For the convenience of those skilled in the art to understand, the present utility model will be further described below in conjunction with the drawings:
[0013] Figure 1 It is a structural schematic diagram of the present utility model.
[0014] Figure 2 It is a front view of the present utility model.
[0015] Figure 3 It is a side view of the present utility model.
[0016] Wherein, 1 is the burner body, 2 is the outer shell, 3 is the regenerator, 4 is the connecting plate, 401 is the fastening bolt, 5 is the refractory heat-insulating layer, 6 is the central pipe, 7 is the gas interface assembly, 701 is the gas interface connecting flange, 8 is the regenerator inlet and outlet assembly, 801 is the regenerator inlet and outlet connecting flange, 9 is the air interface assembly, 901 is the air interface connecting flange, 10 is the sealing assembly, 11 is the cover plate assembly, 1101 is the first cover plate, 1102 is the second cover plate, 1103 is the nut fastening assembly, and 12 is the pilot burner device. Detailed Embodiment
[0017] As Figures 1-3An efficient tundish regenerative burner shown in the figure comprises a burner body 1. The burner body 1 includes an upper part, a middle part and a lower part. A cover plate assembly 11 is arranged between the upper part and the middle part, and a connecting plate 4 is arranged between the middle part and the lower part. The upper part includes an air interface assembly 9, and a sealing assembly 10 is arranged below the air interface assembly 9 in a matching manner. The middle part includes an outer shell 2 arranged on the outside, and a regenerator 3 is arranged inside the outer shell 2. The middle part further includes a gas interface assembly 7 and a regenerator inlet and outlet assembly 8. The lower part includes a central tube 6, and a refractory heat insulation layer 5 is arranged on the inner wall of the central tube 6. The burner body 1 further includes a cooperating pilot burner device 12. The cover plate assembly 11 includes a first cover plate 1101 and a second cover plate 1102, and the sizes and shapes of the first cover plate 1101 and the second cover plate 1102 are the same. A nut fastening assembly 1103 is arranged on the first cover plate 1101 in a matching manner, and the first cover plate 1101 and the second cover plate 1102 are fixedly connected through the nut fastening assembly 1103. Gas interface connection flanges 701, regenerator inlet and outlet connection flanges 801 and air interface connection flanges 901 are respectively arranged at the ends of the gas interface assembly 7, the regenerator inlet and outlet assembly 8 and the air interface assembly 9. Fastening bolts 401 are arranged on the connecting plate 4, and the connecting plate 4 is connected and fixed to the central tube 6 through the fastening bolts 401, and a plurality of the fastening bolts 401 are arranged. The outer shell 2 adopts an integral casting structure, and sealing devices are arranged at all connection flange parts. The air interface assembly 9 is integrally L-shaped, and the air interface assembly 9, the gas interface assembly 7 and the regenerator inlet and outlet assembly 8 are all arranged in the same direction.
[0018] When the utility model works, first, gas is supplied into the burner through the gas interface assembly 7, and the gas enters the middle area of the burner through a preset channel; air enters the upper part of the burner through the air interface assembly 9 and is sealed by the sealing assembly 10 to prevent gas leakage; the air interface assembly 9 is designed in an L shape for easy access and operation; then, when the preheated air passes through the heat storage body 3 in the middle housing 2, it is heated by the heat absorbed and stored by the heat storage body 3 to achieve efficient preheating of the air; the preheated air is mixed with the gas inside the burner; the mixed gas is ejected from the central tube 6, and the refractory heat insulation layer 5 provided on the inner wall of the central tube 6 can effectively protect the central tube 6 and reduce heat dissipation, and under the guidance of the pilot burner device 12, the combustion is made more sufficient; the waste gas generated by combustion is discharged through the heat storage body inlet and outlet assembly 8, and at the same time, the heat in these waste gases is absorbed and stored by the heat storage body 3 for the air preheating in the next cycle; the above process is continuously cycled, the gas and air are continuously supplied, the combustion reaction continues, and at the same time, the heat storage body 3 is continuously regenerated during the process of preheating the air and absorbing the heat of the waste gas; by adjusting the supply amounts of the gas and air, the intensity of the combustion reaction can be controlled, so as to meet different heating requirements; regularly check the wear conditions of each component of the burner and clean the dust and impurities on the surface of the heat storage body 3 to maintain its efficient heat storage performance; through the above work process, the high-efficiency tundish regenerative burner realizes the stable combustion of the gas and the efficient preheating of the air, and at the same time uses the heat storage body 3 to store and reuse the heat, improving the energy utilization efficiency and reducing the energy consumption.
[0019] The above are only the preferred embodiments of the utility model, and the protection scope of the utility model is not limited to the above embodiments. All technical solutions falling within the idea of the utility model belong to the protection scope of the utility model. It should be pointed out that for those of ordinary skill in the art in this technical field, several improvements and retouches made without departing from the principle of the utility model should also be regarded as within the protection scope of the utility model.
Claims
1. An efficient tundish regenerative burner, comprising a burner body (1), characterized in that: The burner body (1) includes an upper part, a middle part, and a lower part. A cover plate assembly (11) is provided between the upper part and the middle part, and a connecting plate (4) is provided between the middle part and the lower part. The upper part includes an air interface assembly (9), and a sealing assembly (10) is cooperatively arranged below the air interface assembly (9). The middle part includes an outer shell (2) arranged on the outside, and a regenerator (3) is arranged inside the outer shell (2). The middle part also includes a gas interface assembly (7) and a regenerator inlet and outlet assembly (8). The lower part includes a central pipe (6), and a refractory heat-insulating layer (5) is arranged on the inner wall of the central pipe (6). The burner body (1) also includes a cooperating pilot burner device (12).
2. An efficient tundish regenerative burner according to claim 1, characterized in that: The cover plate assembly (11) includes a first cover plate (1101) and a second cover plate (1102), and the sizes and shapes of the first cover plate (1101) and the second cover plate (1102) are the same. A nut fastening assembly (1103) is cooperatively arranged on the first cover plate (1101), and the first cover plate (1101) and the second cover plate (1102) are fixedly connected through the nut fastening assembly (1103).
3. An efficient tundish regenerative burner according to claim 1, characterized in that: Gas interface connection flanges (701), regenerator inlet and outlet connection flanges (801), and air interface connection flanges (901) are respectively arranged corresponding to the ends of the gas interface assembly (7), the regenerator inlet and outlet assembly (8), and the air interface assembly (9).
4. An efficient tundish regenerative burner according to claim 1, characterized in that: Fastening bolts (401) are arranged on the connecting plate (4), and the connecting plate (4) is connected and fixed to the central pipe (6) through the fastening bolts (401), and a plurality of the fastening bolts (401) are provided.
5. An efficient tundish regenerative burner according to claim 1, characterized in that: The outer shell (2) adopts an integral casting structure, and sealing devices are provided at all connection flange parts.
6. An efficient tundish regenerative burner according to claim 1 or 3, characterized in that: The air interface assembly (9) is integrally L-shaped, and the air interface assembly (9), the gas interface assembly (7), and the regenerator inlet and outlet assembly (8) are all arranged in the same direction.