A multi-gradation multi-strand material multi-working-condition composite flameless low-nitrogen burner

Abstract

The present application relates to the technical field of low-nitrogen burner, and discloses a graded multi-strand material multi-working-condition composite flameless low-nitrogen burner, which comprises a combustion nozzle and a blower, the blower is fixedly connected to the side wall of the combustion nozzle, the top of the combustion nozzle is provided with a sealing assembly for automatic sealing, and the top of the combustion nozzle is provided with an automatic feeding assembly for automatically filling multi-strand material; the first piston plate automatically blocks the first feeding cavity, and the second piston plate blocks the top of the first feeding cavity, so that the air in the second feeding cavity is prevented from being ignited by the flame when the multi-strand material at the bottom of the combustion nozzle burns, the flame is prevented from entering the first feeding cavity to cause the multi-strand material in the first feeding cavity to burn, and the problem that the first feeding cavity is damaged due to the excessively high temperature in the first feeding cavity and even causes fire is solved, thereby improving the safety of the equipment.

Description

Technical Field

[0001] This invention relates to the field of low-NOx burner technology, specifically to a graded, multi-material, multi-condition composite flameless low-NOx burner. Background Technology

[0002] A low-NOx burner is a combustion device that reduces the generation of nitrogen oxides (NOx) by controlling the combustion process, thereby reducing air pollution. It is also a device that integrates a blower, induced draft fan, frequency converter, control valve, and multiple circuits into a traditional burner, allowing clean energy and burner operation to provide more efficient thermal energy to the boiler. The burner is an important piece of equipment in industrial oil-fired boilers and gas-fired boilers.

[0003] When a low-NOx burner is in operation, operators need to manually feed multiple streams of material into it. This is not only time-consuming and physically demanding, but it also allows air to enter the burner through the feed inlet. The flames from the burning material at the bottom of the burner can easily ignite the material stored inside the feed inlet, causing it to overheat and potentially damage the inlet, or even cause a fire. Due to insufficient operator experience, it's difficult to effectively control the amount of material fed in, leading to excessive amounts of material failing to make sufficient contact with oxygen and thus incomplete combustion. When too much material burns, it generates excessively high temperatures, which, over time, can damage the internal components of the low-NOx burner, reducing its lifespan.

[0004] To address this, a multi-stage, multi-material, multi-condition composite flameless low-NOx burner is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a multi-stage, multi-material, multi-condition composite flameless low-NOx burner to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a multi-material multi-condition composite flameless low-NOx burner with graded distribution, comprising a combustion nozzle and a blower, wherein the blower is fixedly connected to the side wall of the combustion nozzle, a sealing component for automatic sealing is provided at the top of the combustion nozzle, an automatic feeding component for automatically filling multi-materials is provided at the top of the combustion nozzle, a discharge component for discharging the combustion products of the multi-materials is provided at the bottom of the combustion nozzle, and an adjustment component for controlling the flame size is provided on the side of the combustion nozzle;

[0007] The sealing assembly includes a first feeding chamber and a first piston plate. The first feeding chamber is disposed at the top of the combustion nozzle, and the first piston plate slides vertically on the top of the first feeding chamber.

[0008] The automatic feeding assembly includes a first fixing rod and a second piston plate. The first fixing rod is disposed on the top of the combustion nozzle, and the second piston plate is fixedly connected to the upper surface of the first fixing rod.

[0009] The emission assembly includes a filter iron trough plate and a second spring telescopic rod. The filter iron trough plate slides vertically inside the combustion nozzle. The top end of the second spring telescopic rod is fixedly connected to the lower surface of the filter iron trough plate, and the end of the second spring telescopic rod away from the filter iron trough plate is fixedly connected to the bottom of the inner side of the combustion nozzle.

[0010] The adjustment assembly includes a circular slide plate, an arc-shaped groove, and a circular slide rod. The circular slide plate is disposed inside the combustion nozzle, the arc-shaped groove is formed on the surface of the circular slide plate, and the end of the circular slide rod near the combustion nozzle is limited to slide inside the arc-shaped groove.

[0011] Preferably, the sealing assembly further includes a first spring telescopic rod, the top of which is fixedly connected to the inner top of the first feeding chamber, and the bottom end of which is fixedly connected to the bottom end of the first piston plate.

[0012] Preferably, the automatic feeding assembly further includes a second feeding chamber, the second feeding chamber being fixedly connected to the top of the combustion nozzle, and the first fixing rod being fixedly connected to the inside of the second feeding chamber, and the top of the second feeding chamber sliding vertically to the bottom of the first feeding chamber, and a third spring being fixedly connected to the side wall of the second feeding chamber, and the top of the third spring being fixedly connected to the lower surface of the first feeding chamber.

[0013] Preferably, the emission assembly further includes a second fixing rod, which is fixedly connected to the lower surface of the filter iron trough plate. A toothed plate is fixedly connected to the end of the second fixing rod away from the filter iron trough plate. A collection trough plate slides laterally on the top of the combustion nozzle, and a handle is fixedly connected to the side of the collection trough plate away from the second fixing rod.

[0014] Preferably, the adjustment assembly further includes a protective cover, which is rotatably connected to one end of the combustion nozzle near the toothed plate. The circular sliding plate is fixedly connected to the side wall of the combustion nozzle near the toothed plate. A limiting slide bar is fixedly connected to the inner surface of the protective cover away from the circular sliding plate, and the middle part of the circular slide bar is limited to slide inside the limiting slide bar. An arc-shaped baffle is fixedly connected to the end of the circular slide bar away from the circular sliding plate. A gear is fixedly connected to the outer surface of the protective cover away from the combustion nozzle, and the toothed plate and the gear mesh with each other.

[0015] Preferably, the size of the top of the first piston plate is adapted to the size of the top of the inner cavity of the first feeding chamber, so that the first piston plate blocks the first feeding chamber.

[0016] Preferably, the top dimension of the second piston plate is adapted to the bottom inner cavity dimension of the first feeding chamber, so that the top of the second piston plate blocks the bottom of the first feeding chamber.

[0017] Preferably, the filter iron trough plate and the collection trough plate are on the same vertical horizontal plane, so that the combustion residue of multiple materials inside the filter iron trough plate falls into the interior of the collection trough plate.

[0018] Preferably, the interior of the second feeding chamber is connected to the interior of the combustion nozzle, so that multiple streams of material inside the second feeding chamber enter the interior of the combustion nozzle.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. By automatically sealing the first feeding chamber with the first piston plate and sealing the top of the first feeding chamber with the second piston plate, the flames from the combustion of multiple materials at the bottom of the combustion nozzle are prevented from igniting the air inside the second feeding chamber. This prevents the flames from entering the first feeding chamber and causing the multiple materials not fed into the first feeding chamber to burn. It also prevents the internal temperature of the first feeding chamber from becoming too high and causing damage, which could lead to a fire in severe cases, thus improving the safety of the equipment.

[0021] 2. The material enters the combustion nozzle through the second feeding chamber and finally falls into the filter iron trough for combustion. This avoids the problem of overfeeding due to lack of experience of the staff when feeding the combustion nozzle. It also prevents multiple streams of material from failing to come into sufficient contact with oxygen and thus failing to burn completely. Furthermore, it prevents multiple streams of material from remaining inside the combustion nozzle for a long time and deteriorating. This not only improves the working efficiency of the combustion nozzle but also reduces the operating cost.

[0022] 3. By controlling the amount of multiple materials fed into the filter iron trough, the arc-shaped baffle appropriately blocks the flame head of the combustion nozzle, thereby controlling the heating effect of the combustion nozzle. This avoids incomplete combustion when there are too many multiple materials, which affects the combustion efficiency of the multiple materials. It also avoids excessive high temperature generated when too many multiple materials are burning, preventing damage to the internal equipment of the combustion nozzle caused by prolonged high temperature. This not only saves multiple materials but also improves the service life of the combustion nozzle.

[0023] 4. By collecting and cleaning the residue stored inside the filter tray in a timely manner, the residue is prevented from accumulating inside the filter tray for a long time. This prevents the multiple streams of material entering the combustion nozzle from coming into contact with the residue, causing the residue to adhere to the surface of the multiple streams of material and thus isolating the multiple streams of material from oxygen, thereby improving the combustion effect of the multiple streams of material. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall invention;

[0025] Figure 2 This is a schematic diagram showing the positional relationship between the first feeding chamber and the second feeding chamber of the present invention;

[0026] Figure 3 This is a schematic diagram showing the positional relationship between the first piston plate and the second piston plate of the present invention;

[0027] Figure 4 This is a schematic diagram showing the positional relationship between the first piston plate and the first spring telescopic rod of the present invention;

[0028] Figure 5 This is a schematic diagram showing the positional relationship between the burner and the filter iron tray plate of the present invention;

[0029] Figure 6 This is a schematic diagram showing the positional relationship between the second fixing rod and the collecting trough plate of the present invention;

[0030] Figure 7 This is a schematic diagram showing the positional relationship between the filter iron trough plate and the toothed plate of the present invention;

[0031] Figure 8 This is a schematic diagram showing the positional relationship between the burner and the gear in this invention;

[0032] Figure 9 This is a schematic diagram showing the positional relationship between the protective cover and the arc-shaped baffle of the present invention;

[0033] Figure 10 This is a schematic diagram showing the positional relationship between the limiting slide bar and the arc-shaped slide bar of the present invention;

[0034] Figure 11 This is a schematic diagram showing the positional relationship between the circular slide bar and the limiting slide bar of the present invention;

[0035] Figure 12 This is a schematic diagram showing the positional relationship between the circular slide bar and the arc-shaped baffle of the present invention.

[0036] In the picture:

[0037] 1. Combustion nozzle;

[0038] 2. Sealing assembly; 21. First feeding chamber; 22. First piston plate; 23. First spring telescopic rod;

[0039] 3. Automatic feeding assembly; 31. Second feeding chamber; 32. First fixing rod; 33. Second piston plate; 34. Third spring;

[0040] 4. Discharge assembly; 41. Filter tray plate; 42. Second spring telescopic rod; 43. Second fixing rod; 44. Toothed plate; 45. Collection tray plate; 46. Handle;

[0041] 5. Adjustment component; 51. Protective cover; 52. Limiting slide bar; 53. Circular slide plate; 54. Arc-shaped slide groove; 55. Circular slide bar; 56. Arc-shaped baffle; 57. Gear;

[0042] 6. Hair dryer. Detailed Implementation

[0043] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0044] Please see Figures 1 to 12 This invention provides an embodiment of a multi-stage, multi-material, multi-condition composite flameless low-NOx burner: including a combustion nozzle 1 and a blower 6, the blower 6 being fixedly connected to the side wall of the combustion nozzle 1, a sealing component 2 for automatic sealing being provided at the top of the combustion nozzle 1, an automatic feeding component 3 for automatically filling multi-stage materials being provided at the top of the combustion nozzle 1, a discharge component 4 for discharging multi-stage material combustion products being provided at the bottom of the combustion nozzle 1, and an adjustment component 5 for controlling the flame size being provided on the side of the combustion nozzle 1;

[0045] The sealing assembly 2 includes a first feeding chamber 21 and a first piston plate 22. The first feeding chamber 21 is disposed on the top of the combustion nozzle 1. The first piston plate 22 slides vertically on the top of the first feeding chamber 21. The size of the top of the first piston plate 22 is adapted to the size of the top of the inner cavity of the first feeding chamber 21, so that the first piston plate 22 blocks the first feeding chamber 21.

[0046] The automatic feeding assembly 3 includes a first fixing rod 32 and a second piston plate 33. The first fixing rod 32 is disposed on the top of the combustion nozzle 1, and the second piston plate 33 is fixedly connected to the upper surface of the first fixing rod 32. The size of the top of the second piston plate 33 is adapted to the size of the bottom cavity of the first feeding chamber 21, so that the top of the second piston plate 33 blocks the bottom of the first feeding chamber 21.

[0047] The emission assembly 4 includes a filter iron tray plate 41 and a second spring telescopic rod 42. The filter iron tray plate 41 slides vertically inside the combustion nozzle 1. The top end of the second spring telescopic rod 42 is fixedly connected to the lower surface of the filter iron tray plate 41, and the end of the second spring telescopic rod 42 away from the filter iron tray plate 41 is fixedly connected to the bottom of the inner side of the combustion nozzle 1.

[0048] The adjustment assembly 5 includes a circular slide plate 53, an arc-shaped slide groove 54, and a circular slide rod 55. The circular slide plate 53 is disposed inside the combustion nozzle 1, the arc-shaped slide groove 54 is formed on the surface of the circular slide plate 53, and the circular slide rod 55 is limited to slide inside the arc-shaped slide groove 54 at one end near the combustion nozzle 1.

[0049] The sealing assembly 2 also includes a first spring telescopic rod 23, the top of which is fixedly connected to the inner top of the first feeding chamber 21, and the bottom end of which is fixedly connected to the bottom end of the first piston plate 22.

[0050] The automatic feeding assembly 3 also includes a second feeding chamber 31, which is fixedly connected to the top of the combustion nozzle 1. The interior of the second feeding chamber 31 is connected to the interior of the combustion nozzle 1, allowing multiple streams of material inside the second feeding chamber 31 to enter the interior of the combustion nozzle 1. The first fixing rod 32 is fixedly connected to the interior of the second feeding chamber 31, and the top of the second feeding chamber 31 slides vertically to the bottom of the first feeding chamber 21. A third spring 34 is fixedly connected to the side wall of the second feeding chamber 31, and the top of the third spring 34 is fixedly connected to the lower surface of the first feeding chamber 21.

[0051] The emission assembly 4 also includes a second fixing rod 43, which is fixedly connected to the lower surface of the filter iron trough plate 41. A toothed plate 44 is fixedly connected to the end of the second fixing rod 43 away from the filter iron trough plate 41. A collection trough plate 45 slides laterally on the top of the combustion nozzle 1. The filter iron trough plate 41 and the collection trough plate 45 are on the same vertical horizontal plane, so that the combustion residue of multiple materials inside the filter iron trough plate 41 falls into the interior of the collection trough plate 45. A handle 46 is fixedly connected to the side of the collection trough plate 45 away from the second fixing rod 43.

[0052] The adjustment assembly 5 also includes a protective cover 51, which is rotatably connected to one end of the combustion nozzle 1 near the toothed plate 44. A circular slide plate 53 is fixedly connected to the side wall of the combustion nozzle 1 near the toothed plate 44. A limiting slide bar 52 is fixedly connected to the inner surface of the protective cover 51 away from the circular slide plate 53, and the middle part of the circular slide bar 55 is limited to slide inside the limiting slide bar 52. An arc-shaped baffle 56 is fixedly connected to the end of the circular slide bar 55 away from the circular slide plate 53. A gear 57 is fixedly connected to the outer surface of the protective cover 51 away from the combustion nozzle 1, and the toothed plate 44 and the gear 57 mesh with each other.

[0053] The following describes the working process and principle of the above embodiments:

[0054] The following is the initial state:

[0055] The first piston plate 22 seals the top of the first feeding chamber 21 under the elastic contraction of the first spring telescopic rod 23. The top of the second piston plate 33 is located at the bottom of the inner cavity of the first feeding chamber 21 and seals the bottom of the first feeding chamber 21. Under the gravity of the filter iron trough plate 41, the second spring telescopic rod 42 is in a compressed state. The gear 57 is at the bottom of the tooth plate 44. The circular slide rod 55 is at the inner end of the arc-shaped slide groove 54, and the circular slide rod 55 is also at the innermost side of the limiting slide groove rod 52. The arc-shaped baffle 56 is in a closed state.

[0056] The following is the working status:

[0057] When the staff feeds multiple streams of material into the first feeding chamber 21 using the existing feeding equipment, and starts the blower 6, the blower 6 supplies air to the combustion position inside the combustion nozzle 1 to ensure sufficient oxygen for combustion. The multiple streams of material fed by the feeding equipment fall vertically downward onto the upper surface of the first piston plate 22. Under the gravity of the multiple streams of material, the first piston plate 22 slides vertically downward inside the first feeding chamber 21. The first piston plate 22 pulls down the first spring telescopic rod 23 fixedly connected to it. At this time, the first piston plate 22 no longer blocks the top of the first feeding chamber 21, so the multiple streams of material enter the interior of the first feeding chamber 21 through the gap between the top of the first feeding chamber 21 and the first piston plate 22. After the multiple streams of material enter the interior of the first feeding chamber 21, the elastic contraction of the first spring telescopic rod 23 causes the first piston plate 22 to slide downward. Plate 22 automatically seals the first feeding chamber 21 again, while the second piston plate 33 seals the bottom of the first feeding chamber 21. This prevents external air from entering the second feeding chamber 31 when multiple materials stored inside the first feeding chamber 21 enter. This prevents the flame from igniting the air inside the second feeding chamber 31, thus preventing the flame from entering the first feeding chamber 21 and causing the unadded materials to burn. This avoids the flame from igniting the air inside the second feeding chamber 31 when multiple materials burn at the bottom of the combustion nozzle 1, thus preventing the flame from entering the first feeding chamber 21 and causing the unadded materials to burn. It also prevents the first feeding chamber 21 from overheating and damaging it, potentially leading to a fire, thus improving the safety of the equipment.

[0058] When too much material is added into the first feeding chamber 21, the material pushes downwards against the first feeding chamber 21. This causes the bottom of the first feeding chamber 21 to slide vertically downwards onto the top of the second feeding chamber 31, while simultaneously pressing down on the third spring 34, which is fixedly connected to it. This prevents the second piston plate 33 from blocking the bottom of the first feeding chamber 21. At the same time, the second feeding chamber 31, through the first fixing rod 32, drives the second piston plate 33 to push upwards against the material, allowing the material to slowly pass through the first feeding chamber 21. The material enters the second feeding chamber 31 from the bottom, and then enters the combustion nozzle 1 through the second feeding chamber 31. Finally, it falls into the filter iron trough plate 41 for combustion. This avoids the problem of overfeeding when the staff is inexperienced in feeding the combustion nozzle 1. It also prevents multiple streams of material from failing to come into sufficient contact with oxygen and thus failing to burn completely. Furthermore, it prevents multiple streams of material from remaining inside the combustion nozzle 1 for a long time and deteriorating. This not only improves the working efficiency of the combustion nozzle 1 but also reduces the operating cost.

[0059] After the multiple materials are completely burned, the residue produced can be filtered through the filter iron trough plate 41 and enter the interior of the collection trough plate 45. The operator manually pulls the handle 46 outward, causing the handle 46 to move the collection trough plate 45, which is fixedly connected to it, to the outside of the combustion nozzle 1. This cleans the residue stored inside the collection trough plate 45 in a timely manner, preventing the residue from accumulating inside the filter iron trough plate 41 for a long time. This prevents the multiple materials entering the combustion nozzle 1 from coming into contact with the residue, allowing the residue to adhere to the surface of the multiple materials and thus isolating the multiple materials from contact with oxygen, thereby improving the combustion effect of the multiple materials.

[0060] As the amount of material fed into the filter iron trough plate 41 gradually increases, the filter iron trough plate 41 moves downward under the weight of the material itself. The filter iron trough plate 41 drives the second fixed rod 43, which is fixedly connected to it, to move downward. The second fixed rod 43 drives the toothed plate 44, which is fixedly connected to it, to move downward. The toothed plate 44 drives the gear 57 meshing with it to rotate clockwise. The gear 57, through the protective cover 51, drives the limiting slide rod 52 to rotate clockwise synchronously, causing the limiting slide rod 52 to abut against the circular slide rod 55 and move synchronously. At this time, the circular slide rod 55 moves from the inner end of the arc-shaped slide groove 54 to the outer end of the arc-shaped slide groove 54. Simultaneously, the arc-shaped slide groove 54 slides from the innermost side of the limiting slide rod 52 to the outermost side of the limiting slide rod 52. When the circular slide rod 55 moves to the arc-shaped slide groove 54... When the slide 54 is at its outermost edge, the top of the limiting slide rod 52 is at the same horizontal plane as the outermost end of the arc-shaped slide 54. At the same time, the circular slide rod 55 drives the arc-shaped baffle 56, which is fixedly connected to it, to unfold outward. This allows the circular slide rod 55 to drive the arc-shaped baffle 56 to unfold outward and appropriately block the nozzle of the combustion nozzle 1. By adjusting the amount of multiple materials fed into the filter iron trough plate 41, the arc-shaped baffle 56 is driven to appropriately block the nozzle of the combustion nozzle 1, thereby controlling the heating effect of the combustion nozzle 1. This avoids incomplete combustion when there are too many multiple materials, which would affect the combustion efficiency of the multiple materials. It also avoids excessive high temperature generated when too many multiple materials are burning, preventing damage to the internal equipment of the combustion nozzle 1 caused by prolonged high temperature. This not only saves multiple materials but also improves the service life of the combustion nozzle 1.

[0061] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0062] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-stage, multi-material, multi-condition composite flameless low-NOx burner, comprising a combustion nozzle (1) and a blower (6), wherein the blower (6) is fixedly connected to the side wall of the combustion nozzle (1), characterized in that: The top of the combustion nozzle (1) is provided with a sealing component (2) for automatic sealing, the top of the combustion nozzle (1) is provided with an automatic feeding component (3) for automatically filling multiple streams of material, the bottom of the combustion nozzle (1) is provided with a discharge component (4) for discharging the combustion of multiple streams of material, and the side of the combustion nozzle (1) is provided with an adjustment component (5) for controlling the flame size. The sealing assembly (2) includes a first feeding chamber (21) and a first piston plate (22). The first feeding chamber (21) is disposed on the top of the combustion nozzle (1), and the first piston plate (22) slides vertically on the top of the first feeding chamber (21). The automatic feeding assembly (3) includes a first fixing rod (32) and a second piston plate (33). The first fixing rod (32) is disposed on the top of the combustion nozzle (1), and the second piston plate (33) is fixedly connected to the upper surface of the first fixing rod (32). The emission assembly (4) includes a filter iron trough plate (41) and a second spring telescopic rod (42). The filter iron trough plate (41) slides vertically inside the combustion nozzle (1). The top end of the second spring telescopic rod (42) is fixedly connected to the lower surface of the filter iron trough plate (41), and the end of the second spring telescopic rod (42) away from the filter iron trough plate (41) is fixedly connected to the bottom of the inner side of the combustion nozzle (1). The adjustment component (5) includes a circular slide plate (53), an arc-shaped slide groove (54), and a circular slide rod (55). The circular slide plate (53) is disposed inside the combustion nozzle (1). The arc-shaped slide groove (54) is opened on the surface of the circular slide plate (53). The circular slide rod (55) is limited to sliding inside the arc-shaped slide groove (54) at one end near the combustion nozzle (1). The sealing assembly (2) also includes a first spring telescopic rod (23), the top of which is fixedly connected to the inner top of the first feeding chamber (21), and the bottom end of which is fixedly connected to the bottom end of the first piston plate (22). The automatic feeding assembly (3) further includes a second feeding chamber (31), which is fixedly connected to the top of the combustion nozzle (1), and the first fixing rod (32) is fixedly connected to the inside of the second feeding chamber (31). The top of the second feeding chamber (31) slides vertically to the bottom of the first feeding chamber (21). A third spring (34) is fixedly connected to the side wall of the second feeding chamber (31), and the top of the third spring (34) is fixedly connected to the lower surface of the first feeding chamber (21). The emission assembly (4) also includes a second fixing rod (43), which is fixedly connected to the lower surface of the filter iron trough plate (41). A toothed plate (44) is fixedly connected to one end of the second fixing rod (43) away from the filter iron trough plate (41). A collection trough plate (45) is slid laterally on the top of the combustion nozzle (1). A handle (46) is fixedly connected to one side of the collection trough plate (45) away from the second fixing rod (43). The adjustment assembly (5) also includes a protective cover (51), which is rotatably connected to one end of the combustion nozzle (1) near the toothed plate (44). The circular slide plate (53) is fixedly connected to the side wall of the combustion nozzle (1) near the toothed plate (44). A limiting slide bar (52) is fixedly connected to the inner surface of the protective cover (51) away from the circular slide plate (53), and the middle part of the circular slide bar (55) slides inside the limiting slide bar (52). An arc-shaped baffle (56) is fixedly connected to one end of the circular slide bar (55) away from the circular slide plate (53). A gear (57) is fixedly connected to the outer surface of the protective cover (51) away from the combustion nozzle (1), and the toothed plate (44) and the gear (57) mesh with each other.

2. The graded multi-material multi-condition composite flameless low-NOx burner according to claim 1, characterized in that: The top dimension of the first piston plate (22) is adapted to the top dimension of the inner cavity of the first feeding chamber (21).

3. The graded multi-material multi-condition composite flameless low-NOx burner according to claim 1, characterized in that: The top dimension of the second piston plate (33) is adapted to the bottom inner cavity dimension of the first feeding chamber (21).

4. The graded multi-material multi-condition composite flameless low-NOx burner according to claim 1, characterized in that: The filter iron trough plate (41) and the collection trough plate (45) are on the same vertical horizontal plane.

5. The graded multi-material multi-condition composite flameless low-NOx burner according to claim 1, characterized in that: The interior of the second feeding chamber (31) is connected to the interior of the combustion nozzle (1).

Images