A pure oxygen burner that reduces metal loss

Abstract

This utility model discloses a pure oxygen burner that reduces metal loss, relating to the field of combustion equipment technology. It includes a burner body, within which an oxygen pipeline and a natural gas pipeline are disposed. Both the oxygen and natural gas pipelines have jet nozzles at their ends, with the jet nozzles of the oxygen and natural gas pipelines positioned axially. The oxygen pipeline is disposed within the gas pipeline, and a ring-shaped natural gas path is formed around the oxygen pipeline. This application has the effect of reducing production costs.

Description

Technical Field

[0001] This utility model relates to the field of combustion equipment technology, and in particular to a pure oxygen burner that reduces metal loss. Background Technology

[0002] In the field of industrial heating and combustion, the development of burner technology is of paramount importance for improving energy efficiency, reducing production costs, and minimizing environmental pollution. With the continuous development of industrial production and the increasing demand for energy, efficient, stable, and environmentally friendly burners have become the industry's goal. Pure oxygen burners, as devices that can effectively improve combustion efficiency, have been widely used in many fields such as metal smelting and glass manufacturing. They can significantly enhance energy release during combustion, providing strong power support for industrial production.

[0003] For related technology, please refer to Chinese Patent No. CN215982528U, which discloses a pure oxygen flue gas circulation burner, including a circulation flue gas pipe and a combustion chamber disposed inside the circulation flue gas pipe, the combustion chamber being connected to the circulation flue gas pipe; it also includes a gas pipe and an oxygen pipe, one end of the gas pipe being disposed outside the circulation flue gas pipe and the other end being disposed inside the combustion chamber, the oxygen pipe including an ignition oxygen pipe and a premixed oxygen pipe, both of which pass through the circulation flue gas pipe and are connected to the combustion chamber.

[0004] Regarding the aforementioned technologies, during the aluminum recycling process, oxygen easily comes into contact with aluminum over a large area, and a reaction occurs to form aluminum oxide. Once this oxidation reaction occurs, it is irreversible, and the generated aluminum oxide is difficult to separate effectively from the molten aluminum, resulting in significant aluminum loss and increased production costs. Utility Model Content

[0005] To reduce production costs, this application provides a pure oxygen burner that reduces metal loss.

[0006] This application provides a pure oxygen burner with reduced metal loss, employing the following technical solution: A pure oxygen burner for reducing metal loss includes a burner body, an oxygen pipeline and a natural gas pipeline disposed within the burner body, and a jet nozzle opened at the end of both the oxygen pipeline and the natural gas pipeline. The jet nozzles of the oxygen pipeline and the natural gas pipeline are axially positioned at the same position. The oxygen pipeline is disposed within the gas pipeline, and an annular natural gas passage is formed between the oxygen pipeline and the natural gas pipeline, surrounding the oxygen pipeline.

[0007] By adopting the above technical solution, the oxygen pipeline is placed inside the natural gas pipeline. When it is ejected from the end nozzle, it can be fully mixed with the simultaneously ejected oxygen and natural gas. This close contact and mixing method allows the natural gas and oxygen to achieve a more ideal mixing ratio before combustion, providing a foundation for efficient combustion. At the same time, the annular natural gas path surrounds the oxygen pipeline, and when the gas is ejected, the natural gas envelops the oxygen, reducing the direct contact between oxygen and aluminum. The oxygen is first fully consumed through combustion reaction with the natural gas, thereby effectively reducing the production of aluminum oxide, reducing aluminum loss, and reducing production costs.

[0008] Optionally, one end of the burner body is provided with an oxygen connection pipe, and one side of the burner body is provided with a natural gas connection pipe. The burner body is provided with an oxygen nozzle and a natural gas nozzle. The oxygen nozzle is located at the end of the oxygen connection pipe and is connected to the oxygen connection pipe. The oxygen nozzle sprays oxygen along the axial centerline of the burner body. The natural gas nozzle is located at the end of the natural gas connection pipe and is connected to the natural gas connection pipe. The natural gas nozzle sprays natural gas outward along the radial side of the burner body. The end of the oxygen connection pipe away from the oxygen nozzle is provided with an oxygen inlet pipe, which is threadedly connected to the oxygen connection pipe. The end of the natural gas connection pipe away from the natural gas nozzle is provided with a natural gas inlet pipe, which is threadedly connected to the natural gas connection pipe.

[0009] By adopting the above technical solution, both the oxygen inlet pipe and the connecting pipe, and the natural gas inlet pipe and the connecting pipe are connected by threads. This makes disassembly, replacement of nozzles, or maintenance of pipelines simple and requires no complicated tools, thus improving production continuity. Oxygen is ejected along the axial center, while natural gas is ejected radially outward, forming a cross airflow. The two gases collide and diffuse rapidly near the nozzle, resulting in a more uniform mixture. The radial ejection of natural gas forms an annular air curtain, reducing the probability of direct contact between oxygen and molten aluminum.

[0010] Optionally, a mixing nozzle is provided at the jet outlet, which is connected to the oxygen pipeline and the natural gas pipeline respectively. The mixing nozzle has a mixing chamber, through which oxygen and natural gas are ejected outward. The mixing nozzle is threadedly connected to the burner body.

[0011] By adopting the above technical solution, the cavity design of the mixing nozzle allows oxygen and natural gas to be fully mixed in the mixing cavity before being injected. The mixing nozzle is connected to the burner body by a thread, which facilitates the installation and disassembly of the mixing nozzle and improves the ease of use.

[0012] Optionally, the mixing nozzle is made of a new type of high-temperature resistant material.

[0013] By adopting the above technical solution, the high temperature generated by the flame during combustion will produce strong heat radiation and heat conduction on the mixing nozzle. The mixing nozzle made of the new high-temperature resistant material can maintain its physical shape and structural stability in high-temperature environments, reducing the probability of deformation, softening or damage due to high temperatures, and improving the stability of the device in use.

[0014] Optionally, a connecting plate is fixedly provided at one end of the burner body near the mixing nozzle, and a number of connecting holes are opened on the surface of the connecting plate, which are evenly distributed along the circumference of the connecting plate.

[0015] By adopting the above technical solution, the connecting holes on the connecting plate provide a standardized interface for connecting the burner to external equipment. By using fasteners passing through the connecting holes, the burner can be quickly and accurately fixed to the target equipment. The evenly distributed connecting holes allow the fixing force to be evenly transmitted along the circumference of the connecting plate, reducing local stress concentration.

[0016] Optionally, a sealing gasket made of elastic material is fixed to the side of the connecting plate near the mixing nozzle.

[0017] By adopting the above technical solution, the elastic material is compressible and can be tightly squeezed between the connecting plate and the external equipment during assembly, filling the tiny gaps in the mating surface, reducing the leakage channels of natural gas and oxygen, and improving the airtightness of the device.

[0018] Optionally, a detector is provided at the end of the burner body away from the mixing nozzle. The detector is threadedly connected to the burner body. An ultraviolet sensor and an infrared sensor are fixed inside the detector. The ultraviolet sensor and the infrared sensor are used to capture flame characteristics in real time.

[0019] By employing the above technical solutions, ultraviolet (UV) sensors and infrared (IR) sensors, with their different detection characteristics, can be combined to capture flame features more comprehensively. UV sensors are sensitive to UV radiation in flames, enabling rapid detection of initial ignition and extinguishing, as flames release specific wavelengths of UV radiation during their generation and extinction. Infrared sensors, on the other hand, respond to infrared radiation generated by flames, continuously monitoring their intensity and stability, reflecting their combustion state.

[0020] Optionally, an ignition transformer and an ignition electrode are provided at one end of the burner body near the detector. The ignition transformer is electrically connected to the ignition electrode, and the working end of the ignition electrode extends to the mixing chamber.

[0021] By adopting the above technical solution, the ignition transformer provides a stable high voltage to the ignition electrode, ensuring that the electrode releases enough energy to ignite the mixed gas, shortening the ignition time, and improving the ignition success rate. The working end of the ignition electrode extends directly to the mixing chamber, close to the mixing area of ​​natural gas and oxygen, so that the ignition energy can directly act on the combustible mixed gas.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. The annular natural gas pipeline surrounds the oxygen pipeline. When the gas is ejected, the natural gas envelops the oxygen, reducing the direct contact between the oxygen and aluminum. The oxygen reacts with the natural gas first and is fully consumed, thereby effectively reducing the production of aluminum oxide, reducing aluminum loss, and reducing production costs. 2. The hybrid nozzle made of the new high-temperature resistant material can maintain its physical shape and structural stability in high-temperature environments, reducing the probability of deformation, softening or damage due to high temperatures, and improving the stability of the device in use; 3. Several connection holes on the connecting plate provide a standardized interface for connecting the burner to external equipment. By using fasteners through the connection holes, the burner can be quickly and accurately fixed to the target equipment, improving the ease of use of the device. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of a pure oxygen burner that reduces metal loss.

[0024] Figure 2 This is a schematic diagram designed to highlight the connection structure of the connecting plate.

[0025] Figure 3 This is a cross-sectional schematic diagram designed to highlight the connection structure of the hybrid nozzle.

[0026] Explanation of reference numerals in the attached drawings: 1. Burner body; 11. Oxygen connection pipe; 12. Natural gas connection pipe; 2. Mixing nozzle; 21. Mixing chamber; 3. Connecting plate; 31. Sealing gasket; 32. Connecting hole; 4. Detector; 41. Ignition electrode; 42. Infrared sensor; 43. Ultraviolet sensor. Detailed Implementation

[0027] The present application will be further described in detail below with reference to all the accompanying drawings.

[0028] This application discloses a pure oxygen burner that reduces metal loss. Example

[0029] Reference Figure 1 and Figure 2A pure oxygen burner for reducing metal loss includes a burner body 1. The burner body 1 contains an oxygen connection pipe 11 and a natural gas connection pipe 12. The oxygen connection pipe 11 is located inside the natural gas connection pipe 12. Corresponding oxygen nozzles and natural gas nozzles are located at the ends of both the oxygen connection pipe 11 and the natural gas connection pipe 12. An oxygen inlet pipe is located at the end of the oxygen connection pipe 11 furthest from the oxygen nozzle, supplying oxygen to the oxygen nozzle. The oxygen inlet pipe is threadedly connected to the oxygen connection pipe 11, facilitating pipe disassembly and installation and improving the ease of use of the device. A natural gas inlet pipe is located at the end of the natural gas connection pipe 12 furthest from the natural gas nozzle, supplying natural gas to the natural gas connection pipe 12. The natural gas inlet pipe is threadedly connected to the natural gas connection pipe 12.

[0030] Reference Figure 2 and Figure 3 Oxygen reaches the oxygen nozzle via oxygen connecting pipe 11, and natural gas reaches the natural gas nozzle via natural gas connecting pipe 12. The oxygen nozzle sprays oxygen along the axial centerline of the burner body 1, while the natural gas nozzle sprays natural gas radially outward along the burner body 1, forming a cross-flow. The two gases collide and diffuse rapidly near the nozzles, resulting in a more uniform mixture. Simultaneously, the radial spray of natural gas forms an annular gas curtain that envelops the oxygen, reducing direct contact between oxygen and aluminum. The oxygen reacts and is fully consumed by the combustion of natural gas, effectively reducing the production of aluminum oxide and lowering aluminum loss, thereby reducing production costs.

[0031] Reference Figure 2 and Figure 3 The oxygen nozzle has a mixing nozzle 2, which is connected to both the oxygen connection pipe 11 and the natural gas connection pipe 12. The mixing nozzle 2 has a mixing chamber 21, through which oxygen and natural gas are sprayed outwards, allowing them to mix before being sprayed out. The mixing nozzle 2 is threadedly connected to the burner body 1, facilitating installation and disassembly. During burner operation, if the mixing nozzle 2 becomes stuck or damaged, rotating it separates it from the burner body 1, enabling quick and easy replacement or repair. This reduces maintenance costs and difficulty, minimizes equipment downtime, and improves production efficiency.

[0032] Reference Figure 2 and Figure 3 The mixing nozzle 2 is made of a new type of high-temperature resistant material. During combustion, the high temperature generated by the flame will produce strong heat radiation and heat conduction on the mixing nozzle 2. The mixing nozzle 2 made of the new high-temperature resistant material can maintain its physical shape and structural stability in high-temperature environments, reducing the probability of deformation, softening or damage due to high temperatures, and improving the stability of the device.

[0033] Reference Figure 2 and Figure 3 The burner body 1 is equipped with an ignition transformer and an ignition electrode 41 at the end away from the mixing nozzle 2. The ignition transformer and the ignition electrode 41 are electrically connected. The ignition transformer provides a stable high voltage to the ignition electrode 41 to ensure that the electrode releases enough energy to ignite the mixed gas, shorten the ignition time, and improve the ignition success rate. The working end of the ignition electrode 41 extends directly to the mixing chamber 21, close to the mixing area of ​​natural gas and oxygen. The ignition energy can directly act on the combustible mixed gas to achieve combustion.

[0034] Reference Figure 2 and Figure 3 A detector 4 is located at the end of the burner body 1 furthest from the mixing nozzle 2. The detector 4 is threadedly connected to the burner body 1, facilitating disassembly and installation and improving the ease of use of the device. The detector 4 contains a UV sensor 43 and an infrared sensor 42. The UV sensor 43 is sensitive to UV radiation in the flame and can quickly detect the initial ignition and extinguishing of the flame, as the flame releases UV radiation of a specific wavelength at the moment of ignition and extinguishing. The infrared sensor 42 responds to infrared radiation generated by the flame and can continuously monitor the intensity and stability of the flame, reflecting its combustion state. The UV sensor 43 and the infrared sensor 42 work together to detect the combustion status, further enhancing ease of use.

[0035] Reference Figure 2 A connecting plate 3 is fixedly mounted on one end of the burner body 1 near the mixing nozzle 2. Several connecting holes 32 are formed on the surface of the connecting plate 3. These connecting holes 32 provide a standardized interface for connecting the burner to external equipment. By using bolts or other fasteners to thread onto the external equipment through the connecting holes 32, the burner can be quickly and accurately fixed to the target equipment. The connecting holes 32 are evenly distributed around the circumference of the connecting plate 3, allowing the fixing force to be evenly transmitted along the circumference of the connecting plate 3, reducing localized stress concentration. Furthermore, disassembly only requires turning the bolts to separate the burner body 1 from the external equipment, improving the ease of use of the device.

[0036] Reference Figure 2 A sealing gasket 31 is fixed on the side of the connecting plate 3 near the mixing nozzle 2. The sealing gasket 31 is made of an elastic material. The elastic material is compressible and can be tightly squeezed between the connecting plate 3 and the external equipment during assembly to fill the tiny gaps in the mating surface, reduce the leakage channels of natural gas and oxygen, and improve the airtightness of the device.

[0037] The implementation principle of a pure oxygen burner for reducing metal loss in this application embodiment is as follows: the oxygen pipeline is placed inside the natural gas pipeline, and natural gas and oxygen are simultaneously injected from the nozzle, so that the two gases collide and diffuse rapidly near the nozzle, resulting in a more uniform mixture. At the same time, when the gas is injected, the natural gas encapsulates the oxygen, reducing the direct contact between oxygen and aluminum. The oxygen reacts with the natural gas first and is fully consumed, thereby effectively reducing the production of aluminum oxide, reducing aluminum loss, and reducing production costs.

[0038] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A pure oxygen burner with reduced metal loss, comprising a burner body (1), characterized in that: The burner body (1) is provided with an oxygen pipeline and a natural gas pipeline. Both the oxygen pipeline and the natural gas pipeline have a jet nozzle at their ends. The jet nozzles of the oxygen pipeline and the natural gas pipeline are in the same axial position. The oxygen pipeline is located inside the gas pipeline. A ring-shaped natural gas path is formed between the oxygen pipeline and the natural gas pipeline.

2. The pure oxygen burner with reduced metal loss according to claim 1, characterized in that: One end of the burner body (1) is provided with an oxygen connection pipe (11), and one side of the burner body (1) is provided with a natural gas connection pipe (12). An oxygen nozzle and a natural gas nozzle are provided inside the burner body (1). The oxygen nozzle is located at the end of the oxygen connection pipe (11) and is connected to the oxygen connection pipe (11). The oxygen nozzle sprays oxygen along the axial center line of the burner body (1). The natural gas nozzle is located at the end of the natural gas connection pipe (12) and is connected to the natural gas connection pipe (12). The natural gas nozzle sprays natural gas outward along the radial side of the burner body (1). An oxygen inlet pipe is provided at the end of the oxygen connection pipe (11) away from the oxygen nozzle. The oxygen inlet pipe is threadedly connected to the oxygen connection pipe (11). A natural gas inlet pipe is provided at the end of the natural gas connection pipe (12) away from the natural gas nozzle. The natural gas inlet pipe is threadedly connected to the natural gas connection pipe (12).

3. The pure oxygen burner with reduced metal loss according to claim 1, characterized in that: A mixing nozzle (2) is provided at the jet nozzle. The mixing nozzle (2) is connected to the oxygen pipeline and the natural gas pipeline respectively. The mixing nozzle (2) has a mixing chamber (21). Oxygen and natural gas are sprayed outward along the mixing chamber (21). The mixing nozzle (2) is threadedly connected to the burner body (1).

4. A pure oxygen burner for reducing metal loss according to claim 3, characterized in that: The mixing nozzle (2) is made of a new type of high-temperature resistant material.

5. A pure oxygen burner for reducing metal loss according to claim 3, characterized in that: The burner body (1) is fixed with a connecting plate (3) at one end near the mixing nozzle (2). The surface of the connecting plate (3) is provided with a plurality of connecting holes (32), which are evenly distributed around the circumference of the connecting plate (3).

6. A pure oxygen burner for reducing metal loss according to claim 5, characterized in that: A sealing gasket (31) is fixed on the side of the connecting plate (3) near the mixing nozzle (2), and the sealing gasket (31) is made of elastic material.

7. A pure oxygen burner for reducing metal loss according to claim 3, characterized in that: A detector (4) is provided at one end of the burner body (1) away from the mixing nozzle (2). The detector (4) is threadedly connected to the burner body (1). An ultraviolet sensor (43) and an infrared sensor (42) are fixed inside the detector (4). The ultraviolet sensor (43) and the infrared sensor (42) are used to capture flame characteristics in real time.

8. A pure oxygen burner for reducing metal loss according to claim 7, characterized in that: The burner body (1) is provided with an ignition transformer and an ignition electrode (41) at one end near the detector (4). The ignition transformer is electrically connected to the ignition electrode (41), and the working end of the ignition electrode (41) extends to the mixing chamber (21).

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