Burner for mixing kiln gases

Abstract

The utility model discloses a kind of burner for kiln gas mixing, belong to combustion equipment technical field, its technical key points include burner assembly, flow guide component and mixing chamber component.The utility model, when injecting fuel gas and air into kiln, air and fuel gas can be injected into mixing pipe inside through fuel gas injection pipe and connecting pipeline in advance, air can be then guided into rotational flow air by deflection flow guide mechanism, air injected by horizontal flow can be guided into rotational flow air by flow guide mechanism, so that subsequent air and fuel gas can be contacted, so that preliminary mixing can be carried out, and when using subsequently, in order to enable air and fuel gas to be further mixed, mixing chamber component can be set in mixing pipe at this time, since spiral flow guide plate is set as spiral structure, so that air and fuel gas can have longer contact time, so that they can be more fully contacted, so that they can be more fully mixed.

Description

Technical Field

[0001] This utility model belongs to the field of combustion equipment technology, specifically relating to a burner for mixing kiln gases. Background Technology

[0002] Kiln burners are the core components of a kiln system, primarily used for fuel-air mixing, ignition, and combustion control to achieve efficient and stable heat energy supply. Their specific functions and application characteristics are as follows: By adjusting the ratio of fuel gas to air (air-fuel ratio), burners ensure thorough fuel mixing and combustion, guaranteeing that the flame shape and temperature meet process requirements. For example, low-NOx natural gas burners employ deep combustion technology, enabling the formation of a stable flame within the kiln to meet the heat treatment needs of different materials.

[0003] Traditional burners can only mix gas and air to a low degree, which may result in incomplete combustion due to insufficient mixing of gas and air during subsequent combustion. To address this problem, we propose a burner for kiln gas mixing. Utility Model Content

[0004] The purpose of this invention is to provide a burner for mixing kiln gases to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A burner for mixing kiln gas includes a burner assembly, a flow guiding component is provided on the burner assembly, and a mixing chamber assembly is provided inside the burner assembly;

[0007] The burner assembly includes a mixing pipe, an air injection pipe, a gas injection pipe, a connecting pipe, and an installation component. The mixing pipe and the air injection pipe are connected by a connecting flange. The connecting pipe is disposed on the air injection pipe. The gas injection pipe is disposed inside the mixing pipe and the air injection pipe. The installation component is disposed on the gas injection pipe.

[0008] The flow guiding assembly includes an A-helical gear and a flow guiding mechanism. The flow guiding mechanism is disposed on the mounting component, and the A-helical gear is disposed on the surface of the mixing tube. The A-helical gear and the flow guiding mechanism are connected by a rotating shaft. The flow guiding mechanism includes an inlet section and an outlet section. The inlet section is disposed on the mounting component, and the outlet section is disposed on the inlet section.

[0009] Preferably, the burner assembly further includes a porous flow equalization plate disposed within the connecting pipeline, and a gas injection nozzle is disposed at the end of the gas injection pipe.

[0010] Preferably, the flow guiding assembly further includes an A transmission component, a B helical gear, a guide rod, a B transmission component, and a transmission chain. The B helical gear meshes with the A helical gear, and the guide rod is disposed on the B helical gear. Two A helical gears, two B helical gears, two guide rods, and two flow guiding mechanisms are provided and are symmetrically arranged. The A transmission component and the B transmission component are respectively connected to the two guide rods, and the transmission chain connects the A transmission component and the B transmission component.

[0011] Preferably, the connecting flange is provided with an expansion plate, the expansion plate is provided with a motor, and the output end of the motor passes through the expansion plate and is connected to the B transmission component.

[0012] Preferably, the mixing chamber assembly includes a mixing chamber and a spiral guide plate, wherein the mixing chamber is disposed inside the mixing pipe and the spiral guide plate is disposed inside the mixing chamber.

[0013] Preferably, the spiral guide plate has a spiral structure, and the inclined surface of the spiral guide plate is 45°-60°.

[0014] Preferably, the lower end of the mixing tube has a funnel-shaped structure, and the angle between the outlet section and the inlet section is 5°.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] When mixing gas and air, both gas and air can be injected into the mixing pipe. Since the flow guiding component is located inside the burner assembly, the air will pass through the flow guiding mechanism when it is injected. By adjusting the angle of the flow guiding mechanism axially, the flow guiding mechanism can be made into a spiral structure, which can turn the horizontal air into a swirling air. This allows the gas and air to be initially mixed. Furthermore, the gas and air can be further mixed by extending the passage time of the gas and air through the mixing chamber assembly. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a partial exploded view of the present invention;

[0019] Figure 3 This utility model Figure 2 A magnified view of a section at point A in the middle;

[0020] Figure 4 This is a partial cross-sectional view of the present invention;

[0021] Figure 5 This is a schematic diagram of the lifting mechanism of this utility model;

[0022] Figure 6 This utility model Figure 5 A magnified view of a section at point B.

[0023] In the diagram: 1. Burner assembly; 11. Mixing pipe; 12. Connecting flange; 13. Air injection pipe; 14. Perforated flow equalization plate; 15. Gas injection pipe; 16. Connecting pipeline; 17. Gas injector; 18. Mounting component; 2. Flow guiding assembly; 21. Motor; 22. Expansion plate; 23. A transmission component; 24. A helical gear; 25. B helical gear; 26. Guide rod; 27. B transmission component; 28. Transmission chain; 29. ​​Flow guiding mechanism; 291. Inlet section; 292. Outlet section; 3. Mixing chamber assembly; 31. Mixing chamber; 32. Spiral flow guide plate. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1-6 This utility model provides a burner for mixing gas in a kiln, including a burner assembly 1, a flow guiding assembly 2 on the burner assembly 1, and a mixing chamber assembly 3 inside the burner assembly 1;

[0026] The burner assembly 1 includes a mixing pipe 11, an air injection pipe 13, a gas injection pipe 15, a connecting pipe 16, and a mounting component 18. The mixing pipe 11 and the air injection pipe 13 are connected by a connecting flange 12. The connecting pipe 16 is disposed on the air injection pipe 13. The gas injection pipe 15 is disposed inside the mixing pipe 11 and the air injection pipe 13. The mounting component 18 is disposed on the gas injection pipe 15.

[0027] The flow guiding assembly 2 includes an A-helical gear 24 and a flow guiding mechanism 29. The flow guiding mechanism 29 is disposed on the mounting member 18, and the A-helical gear 24 is disposed on the surface of the mixing tube 11. The A-helical gear 24 and the flow guiding mechanism 29 are connected by a rotating shaft. The flow guiding mechanism 29 includes an inlet section 291 and an outlet section 292. The inlet section 291 is disposed on the mounting member 18, and the outlet section 292 is disposed on the inlet section 291. The included angle between the outlet section 292 and the inlet section 291 is 5°.

[0028] Specifically, during kiln firing, it is usually necessary to mix gas and air, and then inject the mixture through burner assembly 1. At this time, gas can be injected into mixing pipe 11 through gas injection pipe 15, and air can be injected through connecting pipe 16. During injection, the flow guiding mechanism 29 can be driven to rotate by rotating helical gear A 24, so that the flow guiding mechanism 29 can rotate between 0-30°. At this time, the outlet end of gas injection pipe 15 is located below the flow guiding mechanism 29, and the inlet end of connecting pipe 16 is... Located above the flow guiding mechanism 29, when air is injected, the air passes through the flow guiding mechanism 29. Through the flow guiding mechanism 29, the horizontal air can be transformed into swirling air, while the gas remains horizontal. Then, the two will make initial contact and mix, thus enabling them to be initially mixed. Furthermore, since the inlet section 291 and the outlet section 292 are at a 5° angle, the inlet section has a large inclination angle and the outlet section has a small inclination angle, which can achieve "coarse mixing followed by fine mixing" in the mixing process, reducing pressure loss while ensuring that the mixing uniformity meets the standards.

[0029] In this embodiment, the burner assembly 1 further includes a porous flow equalization plate 14, which is disposed in the connecting pipe 16, and a gas injector 17 is disposed at the end of the gas injection pipe 15.

[0030] Specifically, during use, a perforated flow equalization plate 14 can be installed at the inlet end of the connecting pipe 16. The perforated flow equalization plate 14 can slow down the rate of air entry, thereby facilitating subsequent mixing operations. During mixing, gas can be sprayed out through the gas injector 17.

[0031] In this embodiment, the flow guiding assembly 2 further includes an A transmission component 23, a B helical gear 25, a guide rod 26, a B transmission component 27, and a transmission chain 28. The B helical gear 25 meshes with the A helical gear 24, and the guide rod 26 is disposed on the B helical gear 25. Two A helical gears 24, two B helical gears 25, two guide rods 26, and two flow guiding mechanisms 29 are provided and are symmetrically arranged. The A transmission component 23 and the B transmission component 27 are respectively connected to the two guide rods 26, and the transmission chain 28 connects the A transmission component 23 and the B transmission component 27. An extension plate 22 is provided on the connecting flange 12, and a motor 21 is provided on the extension plate 22. The output end of the motor 21 passes through the extension plate 22 and is connected to the B transmission component 27.

[0032] Specifically, in use, helical gear A 24 and helical gear B 25 can be meshed, and the two helical gears B 25 can be connected to transmission component B 27 and transmission component A 23 respectively through guide rod 26. They can also be connected through transmission chain 28, so that transmission component A 23 and transmission component B 27 can transmit power. At this time, the operation of motor 21 drives transmission component B 27 and transmission component A 23 to rotate simultaneously, which in turn drives the two helical gears A 24 to rotate, which in turn drives the two guide mechanisms 29 to deflect.

[0033] In this embodiment, the mixing chamber assembly 3 includes a mixing chamber 31 and a spiral guide plate 32. The mixing chamber 31 is disposed inside the mixing pipe 11, and the spiral guide plate 32 is disposed inside the mixing chamber 31. The spiral guide plate 32 has a spiral structure, and the inclined surface of the spiral guide plate 32 is 45°-60°.

[0034] Specifically, in the first step of mixing gas and air, the contact time between gas and air can be delayed. A mixing chamber 31 can be set inside the mixing pipe 11, and a spiral guide plate 32 can be set inside the mixing chamber 31. When gas and air pass through the spiral guide plate 32, the contact time between the two can be extended, thereby allowing them to mix further. In order to make the curvature of the spiral guide plate 32 allow the gas and air to stay for a longer time, the slope of the spiral guide plate 32 can be set to 45-60°.

[0035] In this embodiment, the lower end of the mixing tube 11 has a funnel-shaped structure.

[0036] Specifically, in order to enable the mixed gas to be quickly discharged from the mixing tube 11, the lower outlet of the mixing tube 11 can be set as a funnel-shaped structure.

[0037] The working principle and usage process of this utility model are as follows: When injecting gas and air into the kiln, air and gas can be injected into the mixing pipe 11 beforehand through the gas injection pipe 15 and the connecting pipe 16. Then, the deflection and guiding mechanism 29 can be used to guide the horizontally injected air into a swirling airflow, which facilitates the subsequent contact between the air and gas, thus enabling preliminary mixing. Furthermore, when the deflection and guiding mechanism 29 is in operation, the cooperation of transmission component A 23, transmission component B 27, and transmission chain 28 can enable the two guiding mechanisms 29 to rotate synchronously. In subsequent use, in order to further mix the air and gas, the contact time between the air and gas can be extended. A mixing chamber assembly 3 can be set in the mixing pipe 11. Since the spiral guide plate 32 is set as a spiral structure and its slope is approximately between 45-60°, the gas and air can have a longer contact time, allowing them to come into more sufficient contact and mix more thoroughly. After mixing, the mixture can be discharged into the kiln through the end of the mixing pipe 11.

[0038] The electronic components and modules used in this utility model can all be parts that are commonly used in the market and can achieve the specific functions in this case. The specific models and sizes can be selected and adjusted according to actual needs.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A burner for mixing kiln gases, comprising a burner assembly (1), characterized in that: The burner assembly (1) is provided with a flow guiding assembly (2), and the burner assembly (1) is provided with a mixing chamber assembly (3) inside; The burner assembly (1) includes a mixing pipe (11), an air injection pipe (13), a gas injection pipe (15), a connecting pipe (16), and an mounting component (18). The mixing pipe (11) and the air injection pipe (13) are connected by a connecting flange (12). The connecting pipe (16) is disposed on the air injection pipe (13). The gas injection pipe (15) is disposed inside the mixing pipe (11) and the air injection pipe (13). The mounting component (18) is disposed on the gas injection pipe (15). The flow guiding assembly (2) includes an A-helical gear (24) and a flow guiding mechanism (29). The flow guiding mechanism (29) is disposed on the mounting component (18). The A-helical gear (24) is disposed on the surface of the mixing tube (11). The A-helical gear (24) and the flow guiding mechanism (29) are connected by a rotating shaft. The flow guiding mechanism (29) includes an inlet section (291) and an outlet section (292). The inlet section (291) is disposed on the mounting component (18), and the outlet section (292) is disposed on the inlet section (291).

2. The burner for mixing kiln gas according to claim 1, characterized in that: The burner assembly (1) further includes a porous flow equalization plate (14), which is disposed in the connecting pipe (16), and the end of the gas injection pipe (15) is provided with a gas injector (17).

3. The burner for mixing kiln gas according to claim 1, characterized in that: The flow guiding assembly (2) also includes an A transmission component (23), a B helical gear (25), a guide rod (26), a B transmission component (27), and a transmission chain (28). The B helical gear (25) meshes with the A helical gear (24). The guide rod (26) is disposed on the B helical gear (25). There are two A helical gears (24), two B helical gears (25), two guide rods (26), and two flow guiding mechanisms (29), which are symmetrically arranged. The A transmission component (23) and the B transmission component (27) are respectively connected to the two guide rods (26). The transmission chain (28) connects the A transmission component (23) and the B transmission component (27).

4. The burner for mixing kiln gas according to claim 3, characterized in that: An extension plate (22) is provided on the connecting flange (12), and a motor (21) is provided on the extension plate (22). The output end of the motor (21) passes through the extension plate (22) and is connected to the B transmission component (27).

5. A burner for mixing kiln gas according to claim 1, characterized in that: The mixing chamber assembly (3) includes a mixing chamber (31) and a spiral guide plate (32). The mixing chamber (31) is disposed inside the mixing pipe (11), and the spiral guide plate (32) is disposed inside the mixing chamber (31).

6. A burner for mixing kiln gas according to claim 5, characterized in that: The spiral guide plate (32) has a spiral structure, and the inclined surface of the spiral guide plate (32) is 45°-60°.

7. The burner for mixing kiln gas according to claim 1, characterized in that: The lower end of the mixing tube (11) has a funnel-shaped structure, and the angle between the outlet section (292) and the inlet section (291) is 5°.

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