A low-NOx energy-saving burner that reduces NOx emissions

Abstract

This utility model discloses a low-NOx energy-saving burner for reducing NOx emissions, comprising: a burner body, the burner body being fixedly connected to a combustion tube; further comprising: an adjustment mechanism for adjusting flow rate provided on the front side of the burner body, and an air inlet pipe provided on the front side of the burner body; a cleaning mechanism for removing ash provided inside the combustion tube, and the combustion tube being rotatably connected to a second threaded rod. Preferably, a baffle is provided on the front side of the air inlet pipe, and a filter screen is provided inside the baffle. In this low-NOx energy-saving burner for reducing NOx emissions, the arc-shaped groove is arc-shaped, and the rear side of the conical seat is also arc-shaped. By rotating the first threaded rod, the positional relationship between the conical seat and the arc-shaped groove is adjusted, thereby adjusting the air flow rate and reducing NOx emissions. The outer side of the cleaning plate is tightly fitted to the inner side of the combustion tube, so the rotating connecting shaft can remove ash from the inner wall of the combustion tube, facilitating combustion.

Description

Technical Field

[0001] This utility model relates to the field of burner technology, specifically to a low-NOx energy-saving burner that reduces NOx emissions. Background Technology

[0002] A roasting furnace is a type of roasting equipment, mainly used to prepare for the next major operation such as smelting or leaching. Sometimes it can also be used for impurity removal, preparation or refining of metal powders. The interior of the roasting furnace is a slightly inclined horizontal cylindrical furnace built with refractory bricks. The furnace charge is loaded from one end and is stirred and roasted as it falls from the rotating furnace wall. It is discharged from the discharge end. Generally, a burner is set at the discharge end for heating. The burner is a device that sprays fuel by mixing it with air and igniting it. It can atomize the sample through flame combustion.

[0003] Referring to Chinese Patent Publication No. CN219223367U, with the publication date of June 20, 2023, a burner for a roasting furnace is disclosed. This utility model uses an air inlet duct, a threaded head, an arc-shaped plate, a cleaning surface, and a sliding groove, along with a side plate, a ring plate, an end cover, a dust cover, a slider, and a nut. The air inlet duct is cylindrical, and the air inlet is located on the side away from the cleaning surface. When the dust cover at the air inlet accumulates too much dust, the position of the dust cover can be changed by rotating the end cover, so that the other unused parts can cover the air inlet again. The used parts will come into contact with the cleaning surface when rotating, so that the dust adsorbed on the surface can be automatically cleaned by the cleaning surface during the rotation process.

[0004] However, although this utility model can filter the air inlet of the burner during use, it is inconvenient to control the air flow rate. Therefore, it is not convenient to reduce NOx emissions during combustion. Furthermore, after long-term use, dust tends to accumulate inside the combustion tube, which is not conducive to combustion. Therefore, there is still room for further improvement.

[0005] Therefore, we propose a low-NOx energy-saving burner to reduce NOx emissions in order to solve the problems mentioned above. Utility Model Content

[0006] The purpose of this invention is to provide a low-NOx energy-saving burner that reduces NOx emissions, in order to solve the problems mentioned in the background art. Although the invention can filter the air inlet of the burner during use, it is inconvenient to control the airflow. Therefore, it is not convenient to reduce NOx emissions during combustion. Furthermore, after long-term use, dust tends to accumulate inside the combustion tube, which is not conducive to combustion. Therefore, there is still room for further improvement.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a low-NOx energy-saving burner for reducing NOx emissions, comprising:

[0008] The burner body is fixedly connected to the combustion tube;

[0009] Also includes:

[0010] The burner body is provided with a flow rate adjustment mechanism on the front side, and an air inlet pipe is provided on the front side of the burner body.

[0011] The combustion tube is equipped with a cleaning mechanism for removing ash, and the combustion tube is rotatably connected to the second threaded rod.

[0012] Preferably, a baffle is provided on the front side of the air inlet pipe, and a filter screen is provided inside the baffle.

[0013] Preferably, the adjusting mechanism is composed of a connecting bar, a first threaded rod, a tapered seat, and an arc-shaped groove, with the connecting bar disposed inside the baffle plate and the first threaded rod threadedly connected to the connecting bar.

[0014] Preferably, the first threaded rod is fixedly connected to the conical seat, and the inside of the air inlet pipe is provided with an arc-shaped groove, and the conical seat is slidably connected to the arc-shaped groove.

[0015] Preferably, the adjusting mechanism is composed of a second threaded rod, a bevel gear, a connecting shaft, a connecting plate, a support rod, and a cleaning plate. A bevel gear is provided on the lower side of the second threaded rod, and the bevel gear is located on the left side of the connecting shaft. The second threaded rod and the connecting shaft are connected by meshing.

[0016] Preferably, the connecting shaft is rotatably connected to the connecting plate, the connecting plate is fixedly connected to the combustion pipe, and the connecting shaft is fixedly connected to the support rod.

[0017] Preferably, the support rod is fixedly connected to the cleaning plate, and both the support rod and the cleaning plate are symmetrical about the horizontal central axis of the connecting shaft, and the cleaning plate is tightly fitted to the inner side of the combustion tube.

[0018] Compared with the prior art, the beneficial effects of this utility model are: the low-NOx energy-saving burner that reduces NOx emissions has an arc-shaped groove and an arc-shaped rear side of the conical seat. The positional relationship between the conical seat and the arc-shaped groove can be adjusted by rotating the first threaded rod, thereby adjusting the air flow and reducing NOx emissions. The outer side of the cleaning plate is in close contact with the inner side of the combustion tube, so the rotating connecting shaft can remove ash from the inner wall of the combustion tube, facilitating combustion.

[0019] 1. It is equipped with an air inlet pipe, baffles and filters. The baffles are located on the front side of the air inlet pipe and the filters are installed inside the baffles to filter the air entering the burner body and facilitate combustion.

[0020] 2. It is equipped with a first threaded rod, a conical seat and an arc-shaped groove. The arc-shaped groove is arc-shaped and the rear side of the conical seat is also arc-shaped. By rotating the first threaded rod, the positional relationship between the conical seat and the arc-shaped groove can be adjusted, thereby adjusting the air flow and reducing NOx emissions.

[0021] 3. It is equipped with a second threaded rod, a bevel gear and a connecting shaft. When the second threaded rod rotates, it will drive the connecting shaft to rotate through the bevel gear, so that the connecting shaft can rotate within the connecting plate.

[0022] 4. It is equipped with a connecting shaft, a support rod, and a cleaning plate. The connecting shaft and the cleaning plate are fixedly connected by the support rod, and the outer side of the cleaning plate is in close contact with the inner side of the combustion tube. Therefore, the rotating connecting shaft can remove ash from the inner wall of the combustion tube, which facilitates combustion. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the cross-sectional structure of the air inlet pipe of this utility model;

[0025] Figure 3 This is an exploded structural diagram of the air inlet pipe, baffle, and arc-shaped groove of this utility model;

[0026] Figure 4 This is a cross-sectional view of the combustion tube structure of this utility model.

[0027] In the diagram: 1. Burner body; 2. Air inlet pipe; 3. Baffle plate; 4. Filter screen; 5. Connecting bar; 6. First threaded rod; 7. Conical seat; 8. Arc groove; 9. Combustion tube; 10. Second threaded rod; 11. Bevel gear; 12. Connecting shaft; 13. Connecting plate; 14. Support rod; 15. Cleaning plate. Detailed Implementation

[0028] 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.

[0029] Please see Figure 1-4As shown, this utility model provides a technical solution: a low-NOx energy-saving burner for reducing NOx emissions, comprising: a burner body 1, an air inlet pipe 2, a baffle 3, a filter screen 4, a connecting strip 5, a first threaded rod 6, a conical seat 7, an arc groove 8, a combustion pipe 9, a second threaded rod 10, a bevel gear 11, a connecting shaft 12, a connecting plate 13, a support rod 14, and a cleaning plate 15.

[0030] While existing utility models can filter the air inlet of the burner during use, they do not allow for adequate airflow. As a result, they are not conducive to reducing NOx emissions during combustion. Furthermore, dust tends to accumulate inside the combustion tube 9 after prolonged use, which is detrimental to combustion. Therefore, there is room for further improvement.

[0031] like Figure 1 , Figure 2 and Figure 3 As shown, the air inlet pipe 2 is located on the front side of the burner body 1. Air can enter the interior of the burner body 1 through the air inlet pipe 2. The baffle 3 is located on the front side of the air inlet pipe 2, and a filter screen 4 is installed inside the baffle 3. The filter screen 4 can filter the air entering the burner body 1. The filtered dust will be adsorbed on the surface of the filter screen 4, and the filter screen 4 can be cleaned by brushing.

[0032] like Figure 1 , Figure 2 and Figure 3 As shown, the baffle 3 has a connecting strip 5 inside, which divides the filter screen 4 into two parts. The connecting strip 5 is threadedly connected to the first threaded rod 6. In addition, a turntable is provided on the front side of the first threaded rod 6, which can rotate the first threaded rod 6 to adjust the positional relationship between the conical seat 7 and the arcuate groove 8. Since the inner side of the arcuate groove 8 is arcuate and the arcuate groove 8 is located inside the air inlet pipe 2, and the rear side of the conical seat 7 is also arcuate, when the conical seat 7 moves, the distance between the outer side of the conical seat 7 and the inner side of the air inlet pipe 2 remains constant. However, when the conical seat 7 moves to the inner side of the arcuate groove 8, the gradually moving conical seat 7 will gradually reduce the distance between it and the arcuate groove 8, thus adjusting the gas flow rate. Similarly, when the conical seat 7 moves away from the arcuate groove 8, the air flow rate inside the arcuate groove 8 will also increase, thereby adjusting the air flow rate and reducing NOx emissions.

[0033] like Figure 1 and Figure 4As shown, the combustion tube 9 is located on the left side of the burner body 1. The combustion tube 9 is rotatably connected to the second threaded rod 10, and the inner and outer sides of the combustion tube 9 are provided with seals to prevent the second threaded rod 10 from moving up and down. By holding the turntable on the upper side of the second threaded rod 10, the second threaded rod 10 can be rotated. Since the second threaded rod 10 is connected to the connecting shaft 12 through the bevel gear 11, and the connecting shaft 12 is rotatably connected to the connecting plate 13, when the second threaded rod 10 rotates, the connecting shaft 12 will rotate, and the connecting plate 13 will limit the connecting shaft 12, ensuring that the connecting shaft 12 rotates with the cleaning plate 15 through the support rod 14. The outer side of the cleaning plate 15 is in close contact with the inner side of the combustion tube 9, and the cleaning plate 15 is symmetrical about the horizontal central axis of the connecting shaft 12. Therefore, the rotating connecting shaft 12 can remove ash from the inner wall of the combustion tube 9, which facilitates combustion.

[0034] The contents not described in detail in this specification are existing technologies known to those skilled in the art. All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A low-NOx energy-saving burner for reducing NOx emissions, comprising: The burner body (1) is fixedly connected to the combustion tube (9); Its characteristic is that it further includes: The burner body (1) is provided with a flow rate adjustment mechanism on the front side, and an air inlet pipe (2) is provided on the front side of the burner body (1). The combustion tube (9) is equipped with a cleaning mechanism for removing ash, and the combustion tube (9) is rotatably connected to the second threaded rod (10).

2. The low-NOx energy-saving burner for reducing NOx emissions according to claim 1, characterized in that: A baffle (3) is provided on the front side of the air inlet pipe (2), and a filter screen (4) is provided inside the baffle (3).

3. The low-NOx energy-saving burner for reducing NOx emissions according to claim 1, characterized in that: The adjustment mechanism is composed of a connecting bar (5), a first threaded rod (6), a tapered seat (7) and an arc groove (8), and the connecting bar (5) is located inside the baffle (3), and the first threaded rod (6) is threadedly connected to the connecting bar (5).

4. A low-NOx energy-saving burner for reducing NOx emissions according to claim 3, characterized in that: The first threaded rod (6) is fixedly connected to the conical seat (7), and the air inlet pipe (2) is provided with an arc groove (8), and the conical seat (7) is slidably connected to the arc groove (8).

5. A low-NOx energy-saving burner for reducing NOx emissions according to claim 1, characterized in that: The adjustment mechanism is composed of a second threaded rod (10), a bevel gear (11), a connecting shaft (12), a connecting plate (13), a support rod (14), and a cleaning plate (15). A bevel gear (11) is provided on the lower side of the second threaded rod (10), and the bevel gear (11) is located on the left side of the connecting shaft (12). The second threaded rod (10) and the connecting shaft (12) are connected by meshing through the second threaded rod (10).

6. A low-NOx energy-saving burner for reducing NOx emissions according to claim 5, characterized in that: The connecting shaft (12) is rotatably connected to the connecting plate (13), and the connecting plate (13) is fixedly connected to the combustion tube (9), and the connecting shaft (12) is fixedly connected to the support rod (14).

7. A low-NOx energy-saving burner for reducing NOx emissions according to claim 6, characterized in that: The support rod (14) is fixedly connected to the cleaning plate (15), and both the support rod (14) and the cleaning plate (15) are symmetrical about the horizontal central axis of the connecting shaft (12), and the cleaning plate (15) is tightly attached to the inner side of the combustion tube (9).

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