Total oxygen burner with variable flame forms

Abstract

The invention relates to the technical field of burners for glass kilns, in particular to a variable flame form total oxygen burner which comprises a supporting mechanism and an air inlet mechanism. Wherein the supporting mechanism is used for providing connection with a kiln, at least two spray heads are arranged on the supporting mechanism, and the multiple spray heads are used for spraying flames in different forms; the air inlet mechanism comprises a first air inlet assembly and a second air inlet assembly, the first air inlet assembly and the second air inlet assembly are arranged on the supporting mechanism, and the first air inlet assembly and the second air inlet assembly communicate with the multiple spray heads correspondingly. The first air inlet assembly and the second air inlet assembly are used for conveying air to any spray head. The burner has the effect that the application range of the burner is widened.

Description

Technical Field

[0001] The present application relates to the technical field of burners for glass furnaces, and in particular to a full-oxygen burner with a variable flame form. Background Art

[0002] At present, in the glass manufacturing process, the heating efficiency of the furnace melting pool has a decisive influence on the quality and production cost of glass products. The heating technology of the glass furnace melting pool mainly relies on burners as the main heating elements. These burners generate high-temperature flames by burning fuels (such as natural gas, fuel oil, etc.) to heat the glass raw materials in the melting pool. In the related technology, the flame generated by a single burner has a single form, resulting in the design of the burner often only being applicable to specific glass types and furnace structures, but not to a variety of glass types and furnace structures, resulting in a small scope of application of the burner.

[0003] Therefore, there is an urgent need for a full-oxygen burner with a variable flame form. Summary of the invention

[0004] In order to improve the application range of the burner, the present application provides a full-oxygen burner with a variable flame form.

[0005] The present application provides a variable flame form oxygen burner, which adopts the following technical solution: A variable flame form oxygen burner, comprising: A support mechanism, used for providing connection with the kiln, wherein at least two nozzles are arranged on the support mechanism, and the plurality of nozzles are used for spraying flames in different forms; The air intake mechanism includes a first air intake component and a second air intake component. The first air intake component and the second air intake component are respectively arranged on the supporting mechanism. The first air intake component and the second air intake component are respectively connected to the plurality of nozzles. The first air intake component and the second air intake component are used to supply air to any of the nozzles.

[0006] By adopting the above technical solution, the first air inlet assembly and the second air inlet assembly are respectively connected with multiple nozzles, ensuring that the combustion gas can be accurately delivered to the selected nozzle so that the nozzle sprays the required flame shape, thereby facilitating the design of multiple nozzles so that the burner can select the appropriate flame form according to actual needs, such as flat or cylindrical flame, to meet the glass furnace melting pools of different sizes and requirements. This design not only improves the combustion efficiency, but also enhances the operational flexibility and expands the scope of application of the burner.

[0007] Optionally, the first air intake assembly includes a first air intake pipe and a first air intake connector, one end of the first air intake pipe is arranged on the supporting mechanism and is respectively connected to the plurality of nozzles, and the other end of the first air intake pipe is connected to the first air intake connector; The second air intake assembly includes a second air intake pipe and a second air intake connector. One end of the second air intake pipe is arranged on the supporting mechanism and is respectively connected to the plurality of nozzles. The other end of the second air intake pipe is connected to the second air intake connector. The first air intake pipe and the second air intake pipe are respectively provided with a switching component. The switching component is used to switch the flow path of the gas in the first air intake pipe and the second air intake pipe.

[0008] By adopting the above technical solution, the first air inlet connector and the second air inlet connector can be connected to an external air supply device to supply air to the first air inlet pipe and the second air inlet pipe, and the switching element can switch the flow path of the gas in the first air inlet pipe and the second air inlet pipe, so that the combustion gas can be accurately delivered to the selected nozzle by adjusting the position of the switching element, thereby facilitating the specific nozzle to produce the required flame shape. This not only improves the combustion efficiency, but also enhances the flexibility of the equipment, so that it can adapt to glass furnace melting pools of different sizes, thereby improving production efficiency and product quality.

[0009] Optionally, the switching element is configured as a three-way valve.

[0010] By adopting the above technical solution, the three-way valve can be used as a switching component to flexibly control the flow path of the gas in the first air inlet duct and the second air inlet duct. When the flame form needs to be adjusted, the operator can switch the gas flow path by rotating the three-way valve so that different nozzles are activated, thereby achieving different forms of flame output. This design not only improves the flexibility and adaptability of the burner, but also can meet the needs of different types of glass furnace melting pools without changing the equipment, thereby improving production efficiency and economic benefits. At the same time, the three-way valve is easy and reliable to operate, which reduces maintenance costs and time, and further enhances the stability and reliability of the system.

[0011] Optionally, the air intake mechanism includes an air intake seat, which is arranged on the supporting mechanism, and a plurality of air intake cavities are opened on the air intake seat, and the air intake cavities are arranged one-to-one corresponding to the nozzles, one end of the first air intake pipe extends into the plurality of air intake cavities respectively, and one end of the second air intake pipe is connected to the plurality of air intake cavities respectively.

[0012] By adopting the above technical solution, when the first air intake pipe and the second air intake pipe are transporting gas, the gas transported by the first air intake pipe and the gas transported by the second air intake pipe can be mixed after leaving the air intake cavity, so that the gas can be fully mixed and then sprayed out from the designated nozzle.

[0013] Optionally, it includes a sealing mechanism, which includes a sealing seat and a plurality of sealing plates, the sealing seat is arranged on the supporting mechanism, the sealing seat is provided with a plurality of sealing grooves, the sealing grooves are connected with the nozzles one by one, the first air intake assembly and the second air intake assembly are respectively connected with the plurality of sealing grooves, an accommodating groove is provided on the inner wall of the sealing groove, a sealing plate is slidably arranged in one of the accommodating grooves, one end of the sealing plate can extend into the sealing groove, and the sealing plate is used to seal or open the sealing groove.

[0014] By adopting the above technical solution, the blocking groove on the blocking seat is connected to the nozzle in a one-to-one correspondence, and the blocking plate is slidably arranged in the receiving groove. Whether to close the blocking groove can be determined by controlling the movement of the blocking plate. In this way, when a certain form of flame is needed, the corresponding blocking plate can be withdrawn from the blocking groove to open the corresponding nozzle, thereby allowing gas to enter and produce the required flame shape. At the same time, other nozzles that are not needed are closed by the blocking plate to avoid gas leakage or unnecessary combustion. This design not only improves the flexibility of the burner, but also ensures that the conversion between different flame forms is more convenient and reliable, and adapts to the requirements of glass furnace melting pools of different sizes and needs.

[0015] Optionally, the blocking mechanism includes a driving component and a linkage component, a linkage groove is opened on the blocking seat, the linkage groove is respectively connected to the two adjacent accommodating grooves, the driving component is arranged in the blocking groove and connected to the blocking plate, the linkage component is arranged in the linkage groove and respectively connected to the two adjacent blocking plates, when the driving component drives one of the blocking plates to move into the blocking groove, the linkage component can drive the other blocking plate to move into the accommodating groove.

[0016] By adopting the above technical solution, when the driving assembly drives one blocking plate to move into the blocking groove, the blocking plate can drive another blocking plate to move into the receiving groove through the linkage assembly, so that when one blocking groove is opened, the other blocking groove can be closed, which is beneficial to improve work efficiency on the one hand, and can effectively prevent gas leakage on the other hand, ensuring the safety and stability of the combustion process. In addition, this structure can also reduce wear caused by frequent manual adjustment and extend the service life of the equipment.

[0017] Optionally, the driving assembly includes a gear and a rack, the rack is arranged on the sealing plate, the gear is rotatably connected to the inner wall of the sealing groove and meshes with the rack, and a plurality of fan blades are arranged on the gear, and a plurality of the fan blades are evenly distributed around the axis of the gear.

[0018] By adopting the above technical solution, when ventilation is applied in a blocking groove, the gas flows toward the nozzle through the fan blade to drive the fan blade to rotate, and the fan blade drives the gear to rotate, so that the gear drives the blocking plate to move into the receiving groove through the rack, thereby opening the blocking groove. At the same time, the blocking plate can drive another blocking plate to stably block another blocking groove through the linkage assembly, thereby realizing accurate blocking or opening of different nozzles. This design not only improves the reliability and stability of operation, but also effectively prevents gas leakage and ensures the safety and efficiency of the combustion process. Especially in the application of glass furnace melting pool, the flame form can be flexibly adjusted according to different needs to improve production efficiency and product quality.

[0019] Optionally, a clearance groove is provided on the blocking plate, and the rack is arranged in the clearance groove.

[0020] By adopting the above technical solution, the design of the clearance groove on the blocking plate is conducive to reducing the space required by the rack, and on the other hand, it can effectively avoid interference between the rack and the blocking plate, ensuring that the blocking plate slides smoothly. At the same time, this structure enables the rack to be firmly fixed on the blocking plate, improving the stability and reliability of the transmission.

[0021] Optionally, the linkage assembly includes a connecting rod and a connecting shaft, the connecting rod is rotatably connected to the inner wall of the linkage groove, both ends of the connecting rod are respectively provided with sliding grooves, the connecting shaft is arranged on the blocking plate, and one end of the connecting shaft is slidably inserted in the sliding groove.

[0022] By adopting the above technical solution, when the driving assembly drives one blocking plate to move into the blocking groove, the sliding groove on the connecting rod will drive the other blocking plate to move out of the blocking groove, thereby realizing the function of blocking or opening the blocking groove. This design not only simplifies the operation process, but also improves the reliability and stability of the system, ensuring that the flow direction of the gas can be accurately controlled under different working conditions, thereby realizing the switching of different forms of flames to meet the needs of different types of glass furnace melting pools.

[0023] Optionally, a sealing gasket is provided between the sealing plate and the inner wall of the sealing groove.

[0024] By adopting the above technical solution, a sealing gasket is provided between the sealing plate and the inner wall of the sealing groove, which can effectively prevent gas leakage. This design not only improves the working stability of the burner, but also ensures that the gas will not leak out during the switching process of different flame forms, thereby ensuring combustion efficiency and safety. At the same time, the presence of the sealing gasket also extends the service life of the equipment and reduces maintenance costs.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. Through the cooperation of the first air inlet assembly, the second air inlet assembly and the multiple nozzles, the combustion gas can be accurately delivered to the selected nozzle, so that the nozzle sprays the required flame shape, thereby meeting the requirements of glass furnace melting pools of different sizes and requirements, thereby helping to improve the application range of the burner; 2. Through the cooperation of the driving assembly, linkage assembly, blocking seat and blocking plate, when one blocking plate closes the blocking groove, the other blocking plate can open the corresponding blocking groove, thereby effectively preventing gas leakage to ensure the safety and stability of the combustion process; 3. Through the cooperation of the rack, gear and fan blade, when ventilation is allowed in the blocking groove, the gas can drive the gear to rotate through the fan blade, thereby facilitating driving the blocking plate to open the blocking groove, thus simplifying the operation steps to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of a full-oxygen burner with a variable flame form in Example 1 of the present application.

[0027] Figure 2 It is a front view of a full-oxygen burner with a variable flame form in Example 1 of the present application.

[0028] Figure 3 is along Figure 2 Section view along line AA.

[0029] Figure 4 It is a front view of a full-oxygen burner with a variable flame form in Example 2 of the present application.

[0030] Figure 5 is along Figure 4 Cross-sectional view along line BB.

[0031] Figure 6 It is a side view of a full-oxygen burner with a variable flame form in Example 2 of the present application.

[0032] Figure 7 is along Figure 6 Partial structural cross-sectional view along the CC line.

[0033] Figure 8It is a partial structural schematic diagram of the blocking mechanism in the embodiment of the present application.

[0034] Description of reference numerals: 1. Support mechanism; 11. Burner brick; 12. Bolt; 2. Air intake mechanism; 21. First air intake assembly; 211. First air intake pipe; 212. First air intake joint; 22. Second air intake assembly; 221. Second air intake pipe; 222. Second air intake joint; 23. Air intake seat; 231. Air intake cavity; 24. Switching member; 3. Nozzle; 4. Sealing mechanism; 41. Sealing seat; 411. Sealing groove; 412. Accommodating groove; 413. Linkage groove; 42. Sealing plate; 421. Sealing gasket; 422. Give way groove; 43. Driving assembly; 431. Gear; 432. Rack; 433. Fan blade; 44. Linkage assembly; 441. Connecting rod; 4411. Slide groove; 442. Connecting shaft. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-8 This application is described in further detail.

[0036] The embodiment of the present application discloses an oxygen burner with a variable flame form.

[0037] It should be noted that, in the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0038] Example 1: Reference Figure 1 The variable flame form oxygen burner includes a support mechanism 1 and an air intake mechanism 2. The support mechanism 1 is used to provide a connection with the kiln, and at least two nozzles 3 are arranged on the support mechanism 1. The air intake mechanism 2 is connected with the plurality of nozzles 3 respectively, so that the air intake mechanism 2 can supply air to any nozzle 3, so that the corresponding nozzle 3 sprays flames, thereby effectively improving the application range of the burner.

[0039] Reference Figure 1 The support mechanism 1 includes a burner brick 11 and bolts 12. The burner brick 11 is fixed in the furnace wall reserved by the kiln, and the burner brick 11 is made of high temperature resistant materials, such as ceramics or graphite, to ensure that it will not be damaged in a high temperature environment for a long time. The burner brick 11 is provided with a threaded hole inside, and is fixedly connected to the burner body by the pre-buried bolts 12, ensuring the stability and reliability of the installation.

[0040] Multiple nozzles 3 are respectively arranged on the burner bricks 11. In this embodiment, two nozzles 3 are arranged, and one nozzle 3 is used to spray flat flames, and the other nozzle 3 is used to spray cylindrical flames. In other embodiments, more nozzles 3 can also be arranged to meet the needs of the melting pool of the glass kiln.

[0041] Reference Figure 1 and Figure 2 The air intake mechanism 2 includes a first air intake component 21, a second air intake component 22 and an air intake seat 23. The air intake seat 23 is arranged on the burner brick 11.

[0042] Reference Figure 3 A plurality of air inlet cavities 231 are provided on the air inlet seat 23 , and the number of the air inlet cavities 231 is equal to the number of the nozzles 3 and is arranged one-to-one in correspondence, and the shape of the air inlet cavities 231 is adapted to the shape design of the nozzles 3 .

[0043] Reference Figure 1 and Figure 3 The first air intake assembly 21 includes a first air intake pipe 211 and a first air intake connector 212. One end of the first air intake pipe 211 is arranged on the air intake seat 23 and extends into the plurality of air intake cavities 231, and the other end is connected to the first air intake connector 212. In this embodiment, the first air intake connector 212 is used to connect to an external natural gas supply device so that the first air intake pipe 211 can deliver natural gas to the nozzle 3.

[0044] The second air intake assembly 22 includes a second air intake pipe 221 and a second air intake connector 222. One end of the second air intake pipe 221 is disposed on the air intake seat 23 and is respectively connected to the plurality of air intake cavities 231, and the other end is connected to the second air intake connector 222. In this embodiment, the second air intake connector 222 is used to be connected to an external oxygen supply device so that the second air intake connector 222 can deliver oxygen to the nozzle 3.

[0045] In other embodiments, the air inlet seat 23 may not be provided, and the first air inlet pipe 211 and the second air inlet pipe 221 may be directly connected to the plurality of nozzles 3 .

[0046] Reference Figure 1 , the first air intake pipe 211 and the second air intake pipe 221 are respectively provided with a switching element 24. In this embodiment, the switching element 24 is a three-way valve, so as to switch the flow path of the gas in the first air intake pipe 211 and the second air intake pipe 221.

[0047] Specifically, the three-way valve can be a manual rotary valve or an automatic valve driven by an electric or pneumatic drive. When the flame form needs to be switched, the gas channel can be switched by simply rotating the handle of the three-way valve or sending an electrical signal to the electric valve. In other embodiments, the switching element 24 can also be configured as a plurality of solenoid valves to control the on-off of the first air intake pipe 211 and the second air intake pipe 221.

[0048] The implementation principle of the variable flame form all-oxygen burner of the embodiment of the present application is as follows: when it is necessary to supply gas to the designated nozzle 3, the path changer 24 works to switch the gas inlet path of the first gas inlet pipe 211 and the second gas inlet pipe 221, and then the natural gas is transported into the first gas inlet pipe 211 through the first gas inlet joint 212, so that the natural gas is transported to the designated nozzle 3 through the first gas inlet pipe 211. At the same time, oxygen is transported into the second gas inlet pipe 221 through the second gas inlet joint 222, so that the oxygen is transported to the designated nozzle 3 through the second gas inlet pipe 221 and the gas inlet cavity 231 in turn. In this process, oxygen and natural gas can be mixed in the nozzle 3, so that the nozzle 3 can spray a flame of the desired shape.

[0049] In the embodiment of the present application, by setting up independent oxygen channels and natural gas channels and using a three-way valve to select the required channel, flexible switching of different forms of flames is achieved. This design not only simplifies the operation process and reduces maintenance costs, but also can quickly adjust the flame form according to the needs of different kilns, improve combustion efficiency and thermal energy utilization, and effectively expand the scope of application of the burner.

[0050] Example 2: Reference Figure 4 The difference between this embodiment and embodiment 1 is that a blocking mechanism 4 is added to more accurately control the flow path of the gas.

[0051] Reference Figure 5 and Figure 6 The blocking mechanism 4 includes a blocking seat 41, a plurality of blocking plates 42, and a driving assembly 43 (refer to Figure 7 ) and linkage assembly 44. Wherein, the blocking seat 41 is installed on the burner brick 11, and a plurality of blocking grooves 411 are provided on the blocking seat 41.

[0052] Reference Figure 7 The air inlet cavity 231, the blocking groove 411, and the nozzle 3 are connected one by one. A receiving groove 412 is provided on the inner wall of the blocking groove 411. The receiving groove 412 is adapted to the design of the blocking plate 42, and each blocking plate 42 is slidably arranged in a receiving groove 412. One end of the blocking plate 42 can extend into the blocking groove 411 to block or open the blocking groove 411.

[0053] In this embodiment, a sealing gasket 421 is arranged between the sealing plate 42 and the inner wall of the sealing groove 411. The sealing gasket 421 can be made of flexible materials, such as rubber or silicone, which can maintain good sealing performance at high temperatures and maintain durability during multiple opening and closing processes, thereby effectively improving the sealing effect of the sealing plate 42 on the sealing groove 411 to prevent gas leakage.

[0054] Reference Figure 5 and Figure 7 The blocking seat 41 is provided with a linkage groove 413, which is respectively connected to the two receiving grooves 412. The driving assembly 43 is arranged in the blocking groove 411 and connected to the blocking plate 42, and the linkage assembly 44 is arranged in the receiving groove 412 and respectively connected to the two adjacent blocking plates 42. When the driving assembly 43 drives one blocking plate 42 to move into the blocking groove 411, the linkage assembly 44 can drive the other blocking plate 42 to move into the receiving groove 412.

[0055] Reference Figure 8 The blocking plate 42 is provided with a clearance groove 422, which is arranged along the moving direction of the blocking plate 42. The driving assembly 43 includes a gear 431 and a rack 432. The rack 432 is inserted into the clearance groove 422 and fixedly connected to the blocking plate 42, thereby effectively reducing the space required for the rack 432 to occupy and effectively avoiding the rack 432 from interfering with the movement of the blocking plate 42.

[0056] Reference Figure 7 and Figure 8 The gear 431 is rotatably connected to the inner wall of the blocking groove 411 and meshes with the rack 432. In this embodiment, a plurality of blades 433 are fixedly connected to the gear 431, and the plurality of blades 433 are evenly distributed around the axis of the gear 431.

[0057] When the blocking groove 411 is ventilated, the gas will flow toward the nozzle 3 through the fan blade 433, and the fan blade 433 can rotate under the action of the gas to drive the gear 431 to rotate, so that the gear 431 drives the blocking plate 42 to move into the receiving groove 412 through the rack 432 to open the blocking groove 411. In this process, the gear 431 and the fan blade 433 can disturb the gas flowing through the blocking groove 411, so as to make the natural gas and oxygen mix evenly.

[0058] Reference Figure 5The linkage assembly 44 includes a connecting rod 441 and a connecting shaft 442. The connecting rod 441 is rotatably connected to the inner wall of the linkage groove 413, and two ends of the connecting rod 441 are respectively provided with sliding grooves 4411. The connecting shaft 442 is fixedly connected to the blocking plate 42, and one end of the connecting shaft 442 is slidably inserted in the sliding groove 4411. This design enables the movement of one blocking plate 42 to be synchronously transmitted to the adjacent blocking plate 42, thereby realizing multi-point coordinated control and improving the reliability and response speed of the system.

[0059] The implementation principle of Example 2 is as follows: when the first air intake pipe 211 and the second air intake pipe 221 transport gas into a blocking groove 411, the gas can drive the gear 431 to rotate through the fan blade 433, and the gear 431 can drive the blocking plate 42 to move through the rack 432, so that the blocking plate 42 no longer blocks the blocking groove 411, thereby facilitating the corresponding nozzle 3 to spray flames. At the same time, the blocking plate 42 can drive another blocking plate 42 to move into the blocking groove 411 through the connecting shaft 442 and the connecting rod 441, so that the other blocking plate 42 blocks the corresponding blocking groove 411, thereby effectively avoiding gas leakage or unnecessary combustion.

[0060] In the embodiment of the present application, by adding the blocking mechanism 4, a more precise control of the gas flow path is achieved. This method can not only avoid gas leakage, but also further improve the accuracy and stability of flame form conversion. This design is particularly important for application scenarios that require frequent switching of flame forms. In general, by introducing the blocking mechanism 4, this embodiment improves the reliability and user experience of the product and meets the needs under more complex working conditions.

[0061] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A variable flame all-oxygen burner, characterized in that: include: A support mechanism (1) is used to provide a connection with a kiln, wherein at least two nozzles (3) are arranged on the support mechanism (1), and the plurality of nozzles (3) are used to spray flames in different forms; The air intake mechanism (2) comprises a first air intake component (21) and a second air intake component (22), wherein the first air intake component (21) and the second air intake component (22) are respectively arranged on the support mechanism (1), and the first air intake component (21) and the second air intake component (22) are respectively connected to a plurality of the nozzles (3), and the first air intake component (21) and the second air intake component (22) are used to supply air to any of the nozzles (3).

2. The all-oxygen burner with variable flame form according to claim 1, characterized in that: The first air intake assembly (21) comprises a first air intake pipe (211) and a first air intake connector (212); one end of the first air intake pipe (211) is arranged on the support mechanism (1) and is respectively connected to the plurality of nozzles (3); the other end of the first air intake pipe (211) is connected to the first air intake connector (212); The second air intake assembly (22) comprises a second air intake pipe (221) and a second air intake connector (222); one end of the second air intake pipe (221) is arranged on the support mechanism (1) and is respectively connected to the plurality of nozzles (3); the other end of the second air intake pipe (221) is connected to the second air intake connector (222); and a switching element (24) is respectively arranged on the first air intake pipe (211) and the second air intake pipe (221); the switching element (24) is used to switch the flow path of the gas in the first air intake pipe (211) and the second air intake pipe (221).

3. The all-oxygen burner with variable flame form according to claim 2, characterized in that: The path switching element (24) is configured as a three-way valve.

4. The all-oxygen burner with variable flame form according to claim 2, characterized in that: The air intake mechanism (2) comprises an air intake seat (23), the air intake seat (23) being arranged on the support mechanism (1), a plurality of air intake cavities (231) being provided on the air intake seat (23), the air intake cavities (231) being arranged in a one-to-one correspondence with the nozzles (3), one end of the first air intake pipe (211) respectively extending into the plurality of air intake cavities (231), and one end of the second air intake pipe (221) respectively communicating with the plurality of air intake cavities (231).

5. The all-oxygen burner with variable flame form according to claim 1, characterized in that: The invention comprises a blocking mechanism (4), wherein the blocking mechanism (4) comprises a blocking seat (41) and a plurality of blocking plates (42), wherein the blocking seat (41) is arranged on the supporting mechanism (1), and a plurality of blocking grooves (411) are provided on the blocking seat (41), wherein the blocking grooves (411) are connected to the nozzles (3) in a one-to-one correspondence, wherein the first air intake assembly (21) and the second air intake assembly (22) are respectively connected to the plurality of blocking grooves (411), and an accommodating groove (412) is provided on the inner wall of the blocking groove (411), wherein a blocking plate (42) is slidably arranged in one of the accommodating grooves (412), and one end of the blocking plate (42) can extend into the blocking groove (411), and the blocking plate (42) is used to block or open the blocking groove (411).

6. The all-oxygen burner with variable flame form according to claim 5, characterized in that: The blocking mechanism (4) comprises a driving component (43) and a linkage component (44); a linkage groove (413) is provided on the blocking seat (41); the linkage groove (413) is respectively connected to two adjacent accommodating grooves (412); the driving component (43) is arranged in the blocking groove (411) and is connected to the blocking plate (42); the linkage component (44) is arranged in the linkage groove (413) and is respectively connected to two adjacent blocking plates (42); when the driving component (43) drives one blocking plate (42) to move into the blocking groove (411), the linkage component (44) can drive the other blocking plate (42) to move into the accommodating groove (412).

7. The all-oxygen burner with variable flame form according to claim 6, characterized in that: The driving assembly (43) comprises a gear (431) and a rack (432); the rack (432) is arranged on the blocking plate (42); the gear (431) is rotatably connected to the inner wall of the blocking groove (411) and meshes with the rack (432); a plurality of fan blades (433) are arranged on the gear (431); and the plurality of fan blades (433) are evenly distributed around the axis of the gear (431).

8. The all-oxygen burner with variable flame form according to claim 7, characterized in that: The blocking plate (42) is provided with a clearance groove (422), and the rack (432) is arranged in the clearance groove (422).

9. The all-oxygen burner with variable flame form according to claim 6, characterized in that: The linkage assembly (44) comprises a connecting rod (441) and a connecting shaft (442); the connecting rod (441) is rotatably connected to the inner wall of the linkage groove (413); two ends of the connecting rod (441) are respectively provided with sliding grooves (4411); the connecting shaft (442) is arranged on the blocking plate (42); and one end of the connecting shaft (442) is slidably inserted into the sliding groove (4411).

10. The all-oxygen burner with variable flame form according to claim 5, characterized in that: A sealing gasket (421) is provided between the sealing plate (42) and the inner wall of the sealing groove (411).

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