Energy-saving low-nitrogen kiln burner

Abstract

The utility model relates to the technical field of kiln burners, and provides an energy-saving low-nitrogen kiln burner which comprises a shell and a mixing box, the top and the bottom of the shell are both provided with through holes, the top of the mixing box is fixedly connected with an ignition burner, the front side of the mixing box is fixedly connected with a nozzle, and the nozzle is fixedly connected with the shell. And one side of the mixing box is fixedly connected with a heat storage box. The oxygen supply device has the advantages of air supply temperature and energy conservation, in the actual use process, stable air flow can be provided and sufficient air supply can be ensured through matched use of the adjusting mechanism and the draught fan, oxygen supply can be accurately adjusted by controlling the rotating speed and the air volume of the draught fan, and the stable combustion process and temperature control can be achieved; air can be forcibly fed into the mixing box, the mixing effect of oxygen and fuel is enhanced, the optimization of the combustion process is achieved, and unnecessary air flow can be reduced while sufficient combustion is guaranteed by properly adjusting the air flow.

Description

Technical Field

[0001] The utility model relates to the technical field of kiln burners, and specifically to an energy-saving low-nitrogen kiln burner. Background Art

[0002] Low nitrogen kiln burners are burner nozzles specially designed to reduce nitrogen oxide emissions. This type of burner usually adopts advanced combustion technology and structural design to minimize NOx emissions generated during the combustion process. Low nitrogen kiln burners are widely used in industrial kilns, power plants, gas boilers and other occasions. They can not only reduce nitrogen oxide pollution to the environment, but also improve thermal efficiency and energy utilization.

[0003] As disclosed in the kiln burner of publication number CN207539903U, the beneficial effect of the utility model is as follows: the primary combustion-supporting air is ejected through the air jet port and enters the middle cavity from the slot hole, the two collide with each other and are evenly mixed in the middle cavity. Since the density of natural gas is only a little more than half of the density of air, during the rapid rotation of the flame, the centrifugal force causes the evenly mixed natural gas to gather toward the center of the burner, and the combustion-supporting air introduced from the central cavity ensures that the natural gas can be burned before it gathers, thereby preventing incomplete combustion. However, the kiln burner lacks a structure for controlling the inflow of air, and the amount of air inflow is difficult to accurately control, which can easily lead to the problem of unstable combustion in the burner, and also cause part of the air flowing near the kiln burner to not enter the combustion chamber, thereby increasing the ineffective heat loss of the combustion air, reducing thermal efficiency and energy utilization. Secondly, the kiln burner lacks a fan, resulting in unstable air supply. Kiln combustion requires appropriate oxygen supply to ensure combustion effect and temperature control, but natural convection often cannot provide a stable air flow, making it difficult to adjust the combustion conditions, affecting the stability and efficiency of the process.

[0004] Therefore, there is an urgent need for an energy-saving low-nitrogen kiln burner to solve the above problems. Utility Model Content

[0005] The utility model provides an energy-saving low-nitrogen kiln burner, which solves the problems that the above-mentioned kiln burner lacks a structure for controlling air inflow, the amount of air inflow is difficult to accurately control and lacks a fan, resulting in unstable air supply and low energy utilization efficiency.

[0006] The technical solution of the utility model is as follows: an energy-saving low-nitrogen kiln burner, comprising a shell and a mixing box, the top and bottom of the shell are provided with through holes, the top of the mixing box is fixedly connected to an ignition burner, the front side of the mixing box is fixedly connected to a nozzle, one side of the mixing box is fixedly connected to a heat storage box, the side of the heat storage box away from the mixing box is fixedly connected to a connecting pipe, the top of the connecting pipe is connected to the shell, one end of the connecting pipe is fixedly connected to a fan, and the surface of the connecting pipe is fixedly connected to a flue gas pipe.

[0007] The adjustment mechanism includes a handle located on one side of the shell, one side of the handle extends to the inner cavity of the shell and is fixedly connected to a rotating disk, the bottom of the rotating disk is rotatably connected to the shell, and the top of the shell is provided with six limiting holes distributed in a ring shape, the inner cavity of the limiting holes is slidably connected to a guide block, the bottom of the guide block extends to the interior of the shell and is fixedly connected to a movable plate, and the bottom of the movable plate is in contact with the rotating disk.

[0008] Preferably, a sealing valve is provided on the surface of the smoke pipe, and the sealing valve is used in conjunction with the smoke pipe.

[0009] Preferably, a dustproof net is fixedly connected to the inner wall of the through hole, and the dustproof net is composed of fibers interwoven longitudinally and transversely.

[0010] Preferably, a slide groove is provided on the top of the rotating disk, and six sliding blocks distributed in a ring are slidably connected inside the slide groove, and the top of the sliding block is fixedly connected to the moving plate.

[0011] Preferably, flanges are fixedly connected to the mixing box and the heat storage box on opposite sides, and a plurality of bolts are provided through one side of the flange.

[0012] Preferably, a through hole is provided on the surface of the shell, and the inner wall of the through hole is slidably connected to the handle.

[0013] The working principle and beneficial effects of the utility model are:

[0014] 1. In the utility model: first, when the kiln burner needs to be used, the user pushes the handle, and the handle swings while driving the rotating disk to rotate, and the rotating disk rotates while driving the slider to slide in the inner cavity of the slide slot, and the slider slides while driving the moving plate to swing, and the moving plate swings while driving the guide block to slide in the inner cavity of the limit hole, so that the amount of air flowing into the connecting pipe can be accurately controlled. A fan is connected to one side of the connecting pipe, which can provide a stable airflow to ensure sufficient air supply. When the air enters the mixing box, it is mixed with the fuel. The premixed fuel and air mixture stays in the mixing box. At this time, the user starts the ignition burner to form a high-temperature combustion area to achieve instantaneous combustion. After passing through the high-temperature combustion area, the fuel and air mixture is ejected through the nozzle. The above steps can achieve higher combustion efficiency, maximize the use of fuel energy, reduce energy loss, and thus achieve energy saving.

[0015] 2. The utility model has the advantages of air supply temperature and energy saving. In actual use, through the coordinated use of the adjustment mechanism and the fan, a stable airflow can be provided to ensure sufficient air supply. By controlling the speed and air volume of the fan, the oxygen supply can be accurately adjusted to achieve a stable combustion process and temperature control. The air can be forced into the mixing box to enhance the mixing effect of oxygen and fuel and optimize the combustion process. Appropriate adjustment of the air flow rate can reduce unnecessary air flow while ensuring sufficient combustion, thereby improving combustion efficiency and energy utilization efficiency. The above-mentioned kiln burner lacks a structure to control the inflow of air, the amount of air inflow is difficult to accurately control, and the lack of a fan leads to unstable air supply and low energy utilization efficiency.

[0016] 3. The utility model can effectively reduce the phenomenon of heat and gas escaping from the kiln by setting the sealing valve, thereby reducing energy loss to a certain extent and improving the thermal efficiency of the kiln. The dustproof net can effectively filter and prevent dust, particulate matter and other impurities in the air from entering the mixing box and the heat storage box, reducing the interference of dust on the combustion process. The coordinated use of the slider and the slide groove can limit the moving plate, avoiding the position deviation of the moving plate when moving, and improving the stability of the adjusting mechanism. The flange can be easily disassembled and assembled, which is convenient for the maintenance and replacement of the burner. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 It is a schematic diagram of a partial three-dimensional structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the adjustment mechanism of the utility model;

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the slide groove and the slider of the utility model.

[0022] In the figure: 1. Shell; 2. Handle; 3. Rotating disk; 4. Moving plate; 5. Guide block; 6. Through hole; 7. Through hole; 8. Dust screen; 9. Limit hole; 10. Slide groove; 11. Slider; 12. Connecting pipe; 13. Fan; 14. Sealing valve; 15. Flue gas pipe; 16. Heat storage box; 17. Flange; 18. Ignition burner; 19. Nozzle; 20. Mixing box. DETAILED DESCRIPTION

[0023] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example 1

[0025] like Figure 1 to Figure 4 As shown, this embodiment proposes an energy-saving low-nitrogen kiln burner, including a shell 1 and a mixing box 20. The top and bottom of the shell 1 are both provided with through holes 6. The top of the mixing box 20 is fixedly connected to an ignition burner 18, the front side of the mixing box 20 is fixedly connected to a nozzle 19, one side of the mixing box 20 is fixedly connected to a heat storage box 16, and the mixing box 20 and the heat storage box 16 are fixedly connected to the opposite side with a flange 17, and a plurality of bolts are penetrated through one side of the flange 17. Through the setting of the flange 17, it can be easily disassembled and assembled, which is convenient for the maintenance and replacement of the burner. The heat storage box 16 is fixedly connected to a connecting pipe 12 on the side away from the mixing box 20, the top of the connecting pipe 12 is connected to the shell 1, one end of the connecting pipe 12 is fixedly connected to the fan 13, and the surface of the connecting pipe 12 is fixedly connected to a flue gas pipe 15.

[0026] The adjusting mechanism includes a handle 2 located on one side of the shell 1, a through hole 7 is provided on the surface of the shell 1, the inner wall of the through hole 7 is slidably connected to the handle 2, one side of the handle 2 extends to the inner cavity of the shell 1 and is fixedly connected to a rotating disk 3, the bottom of the rotating disk 3 is rotatably connected to the shell 1, six limiting holes 9 distributed in an annular shape are provided on the top of the shell 1, the inner cavity of the limiting hole 9 is slidably connected to a guide block 5, the bottom of the guide block 5 extends to the interior of the shell 1 and is fixedly connected to a movable plate 4, and the bottom of the movable plate 4 is in contact with the rotating disk 3.

[0027] In this embodiment, a sealing valve 14 is provided on the surface of the smoke pipe 15. The sealing valve 14 is used in conjunction with the smoke pipe 15. The setting of the sealing valve 14 can effectively reduce the phenomenon of heat and gas escaping from the kiln, thereby reducing energy loss to a certain extent and improving the thermal efficiency of the kiln.

[0028] In this embodiment, a dustproof net 8 is fixedly connected to the inner wall of the through hole 6. The dustproof net 8 is composed of longitudinally and transversely interwoven fibers. Through the setting of the dustproof net 8, dust, particulate matter and other impurities in the air can be effectively filtered and prevented from entering the mixing box 20 and the heat storage box 16, thereby reducing the interference of dust on the combustion process.

[0029] In this embodiment, a slide groove 10 is provided at the top of the rotating disk 3, and six sliders 11 distributed in a ring are slidably connected inside the slide groove 10. The top of the slider 11 is fixedly connected to the movable plate 4. Through the coordinated use of the slider 11 and the slide groove 10, the movable plate 4 is limited, thereby avoiding the position deviation of the movable plate 4 during movement and improving the stability of the adjustment mechanism.

[0030] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An energy-saving low-nitrogen kiln burner, comprising a housing (1) and a mixing box (20), characterized in that: The top and bottom of the shell (1) are both provided with through holes (6); the top of the mixing box (20) is fixedly connected to an ignition burner (18); the front side of the mixing box (20) is fixedly connected to a nozzle (19); one side of the mixing box (20) is fixedly connected to a heat storage box (16); the side of the heat storage box (16) away from the mixing box (20) is fixedly connected to a connecting pipe (12); the top of the connecting pipe (12) is connected to the shell (1); one end of the connecting pipe (12) is fixedly connected to a fan (13); and the surface of the connecting pipe (12) is fixedly connected to a smoke pipe (15); The adjusting mechanism comprises a handle (2) located at one side of a shell (1), one side of the handle (2) extends to the inner cavity of the shell (1) and is fixedly connected to a rotating disk (3), the bottom of the rotating disk (3) is rotatably connected to the shell (1), the top of the shell (1) is provided with six limiting holes (9) distributed in an annular shape, the inner cavity of the limiting holes (9) is slidably connected to a guide block (5), the bottom of the guide block (5) extends to the interior of the shell (1) and is fixedly connected to a movable plate (4), and the bottom of the movable plate (4) is in contact with the rotating disk (3).

2. The energy-saving low-nitrogen kiln burner according to claim 1 is characterized in that: A sealing valve (14) is provided on the surface of the smoke pipe (15), and the sealing valve (14) is used in conjunction with the smoke pipe (15).

3. The energy-saving low-nitrogen kiln burner according to claim 1 is characterized in that: The inner wall of the through hole (6) is fixedly connected with a dustproof net (8), and the dustproof net (8) is composed of fibers interwoven longitudinally and transversely.

4. The energy-saving low-nitrogen kiln burner according to claim 1, characterized in that: A slide groove (10) is provided on the top of the rotating disk (3), and six sliding blocks (11) distributed in a ring shape are slidably connected inside the slide groove (10), and the top of the sliding block (11) is fixedly connected to the moving plate (4).

5. The energy-saving low-nitrogen kiln burner according to claim 1, characterized in that: The mixing box (20) and the heat storage box (16) are fixedly connected to the opposite side with a flange (17), and a plurality of bolts are provided through one side of the flange (17).

6. The energy-saving low-nitrogen kiln burner according to claim 1, characterized in that: A through hole (7) is provided on the surface of the housing (1), and the inner wall of the through hole (7) is slidably connected to the handle (2).

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