Combustor with manual soot cleaning structure

Abstract

The utility model provides a kind of burner with manual dust cleaning structure, it includes: dust cleaning subassembly, fuel lance, primary combustion gas cylinder, pyrolysis gas cylinder, secondary combustion gas cylinder, wherein primary combustion gas cylinder, pyrolysis gas cylinder, secondary combustion gas cylinder are in turn progressive and suit, to be separately spaced out pyrolysis gas passage, secondary combustion gas passage between each cylinder body, the fuel lance is arranged in primary combustion gas cylinder, and the dust cleaning subassembly includes: dust cleaning shovel, joystick, pipe seat, the pipe seat is connected with pyrolysis gas cylinder to communicate pyrolysis gas passage, the dust cleaning shovel is arranged in pyrolysis gas passage, the joystick one end is inserted into pipe seat and is connected with dust cleaning shovel, dust cleaning shovel is reciprocated in pyrolysis gas passage from outside control. To realize on-line manual dust cleaning function in this way, avoid impurity deposition and block burner, provide operation guarantee for long-term use of biomass pyrolysis gas as fuel for burner.

Description

Technical Field

[0001] This utility model relates to burner technology, and more particularly to a burner with a manual ash removal structure. Background Technology

[0002] In the selection of primary fuels for burners, biomass pyrolysis gas, as an alternative to traditional fossil fuels, demonstrates significant advantages, primarily in two dimensions: environmental value and resource characteristics. From an environmental perspective, biomass absorbs carbon dioxide from the atmosphere through photosynthesis during its growth cycle, and releases an equal amount of carbon dioxide during its pyrolysis combustion, forming a closed-loop "carbon cycle" system. This makes the net carbon emissions of burners using this fuel approach zero, effectively achieving carbon neutrality goals and aligning with the core needs of current low-carbon development. From a resource supply perspective, biomass pyrolysis gas has a broad and renewable source of raw materials. Agricultural and forestry wastes such as straw, sawdust, and fruit shells have a large annual output and are recyclable. This stable raw material guarantee makes its application potential in burner-related distributed energy systems and industrial boiler / kiln fuel replacement increasingly prominent.

[0003] Despite its significant advantages, the multi-component impurities inherent in biomass pyrolysis gas pose a severe challenge to the long-term stable operation of burners, becoming a core bottleneck for its large-scale application. According to actual application testing data, the typical impurities and their content ranges in biomass pyrolysis gas are clearly defined: tar (50-500 mg / m³), dust (1000-20000 mg / m³), moisture (5%-15%), and under some operating conditions, the pyrolysis gas also contains 0.1%-1% sulfur. These impurities, through physical deposition, can cause various harms to burner operation, such as:

[0004] Firstly, the hazard stems from the condensation properties of tar. When the temperature of the pyrolysis gas drops below 200℃, the tar components within it easily undergo a phase change, condensing from a gaseous state into a high-viscosity liquid. This viscous liquid readily adheres to the inner walls of the burner and its supporting systems, including the pipe walls, cylinder walls, nozzles, mixing chamber, and the surface of refractory bricks. This directly leads to a reduction in the cross-sectional area of ​​the flow channels, or even complete blockage, resulting in obstructed airflow. Abnormal fluctuations in airflow velocity can further induce severe operational malfunctions such as backfire, flameout, and even flameout, seriously threatening the operational safety of the burner.

[0005] Secondly, the hazards stem from the synergistic effect of dust and tar. Solid dust particles in the pyrolysis gas combine with condensed tar to form a composite agglomerate, which solidifies into a hard slag after being exposed to high temperatures, further exacerbating the blockage of the burner's internal channels. Simultaneously, the dust particles themselves are highly abrasive, causing continuous erosion and wear on the burner's core components (such as valve cores and nozzles) under the influence of airflow. Long-term dust accumulation can also lead to abnormal local resistance in the gas path, disrupting the stable operation of the combustion system and increasing the risk of equipment failure.

[0006] Therefore, how to fully utilize the environmental and resource advantages of biomass pyrolysis gas while accurately solving the operational problems caused by impurities to the burner is a challenge facing those skilled in the art. Utility Model Content

[0007] Therefore, the main purpose of this utility model is to provide a burner with a manual ash removal structure to realize online manual ash removal function, avoid impurities from accumulating and clogging the burner, and provide operational assurance for the burner to use biomass pyrolysis gas as fuel for a long time.

[0008] To achieve the above objectives, according to one aspect of the present invention, a burner with a manual ash removal structure is provided, comprising: an ash removal assembly, a fuel spray gun, a primary combustion-supporting cylinder, a pyrolysis gas cylinder, and a secondary combustion-supporting cylinder, wherein the primary combustion-supporting cylinder, the pyrolysis gas cylinder, and the secondary combustion-supporting cylinder are sequentially nested together to create pyrolysis gas channels and secondary combustion-supporting gas channels respectively between each cylinder body; the fuel spray gun is disposed within the primary combustion-supporting cylinder; the ash removal assembly comprises: an ash removal shovel, a control lever, and a pipe seat; the pipe seat is connected to the pyrolysis gas cylinder to communicate with the pyrolysis gas channels; the ash removal shovel is disposed within the pyrolysis gas channels; one end of the control lever extends into the pipe seat and connects to the ash removal shovel, allowing external control of the ash removal shovel to reciprocate in the pyrolysis gas channels to remove ash.

[0009] Preferably, the ash removal shovel includes: an upper ash shovel and a lower ash shovel, wherein the upper ash shovel includes: a first outer cylinder shovel blade, a first inner cylinder shovel blade, and a first stiffening plate, wherein the first outer cylinder shovel blade and the first inner cylinder shovel blade are connected at intervals via the first stiffening plate to form a long arc double blade; the lower ash shovel includes: a second outer cylinder shovel blade, a second inner cylinder shovel blade, a ash pushing plate, and a second stiffening plate, wherein the second outer cylinder shovel blade and the second inner cylinder shovel blade are connected at intervals via the second stiffening plate to form a short arc double blade, the ash pushing plate is disposed on the front side of the second outer cylinder shovel blade, and there are multiple operating levers, which are respectively connected to the first stiffening plate and the second stiffening plate.

[0010] Preferably, the long-arc double blade and the short-arc double blade cover 240° and 120° of the pyrolysis gas channel wall, respectively.

[0011] Preferably, the control lever includes: a push rod, a handle, and an arc plate, wherein several push rods are connected in a group via the arc plate, the handle is connected to the front end of the group of push rods respectively, and the tail end of the group of push rods extends into the pipe seat and is connected to the dust removal shovel.

[0012] Preferably, the burner with manual ash removal structure further includes: a primary cyclone separator, which is installed inside the primary combustion chamber and sleeved on the fuel injection nozzle head.

[0013] Preferably, the burner with manual ash removal structure further includes: a secondary cyclone separator and an air cone shroud, wherein the air cone shroud is connected to the secondary combustion-supporting cylinder and extends outside the outlet of the secondary combustion-supporting channel, and the secondary cyclone separator is matched with the air cone shroud at the outlet of the secondary combustion-supporting channel to form a cyclone air duct toward the outlet of the pyrolysis gas channel.

[0014] Preferably, the lower part of the pyrolysis gas cylinder outlet has a guide wall, the arc length of which is at least flush with the second outer cylinder shovel and the outward extension length is at least flush with the wind cone hood.

[0015] Preferably, the outlet of the primary combustion-supporting cylinder is provided with refractory bricks near the head of the fuel spray gun.

[0016] Preferably, the inner walls of the primary combustion-supporting cylinder, the pyrolysis gas channel, and the secondary combustion-supporting channel are provided with heat insulation layers.

[0017] The burner with manual ash removal structure provided by this utility model can efficiently remove ash accumulated inside the burner by manually operating an online ash removal shovel without interrupting combustion or affecting the safety of the entire system. This avoids excessive pressure drop and unstable gas supply caused by tar and dust accumulating inside the pyrolysis gas channel, thereby extending the service life of the burner when using biomass pyrolysis gas fuel and ensuring long-term operation of the equipment. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0019] Figure 1 This is a side view of the overall structure of the burner with manual ash removal mechanism of this utility model;

[0020] Figure 2 This is a front view of the overall structure of the burner with manual ash removal mechanism of this utility model;

[0021] Figure 3 This is a perspective view of the front structure of the burner with manual ash removal mechanism of this utility model.

[0022] Figure 4 This is a half-sectional view of the burner with manual ash removal structure according to the present invention.

[0023] Figures 5 to 6 This is a schematic diagram of the upper ash cleaning shovel structure in the burner with manual ash cleaning mechanism of this utility model.

[0024] Figures 7 to 8This is a schematic diagram of the lower ash cleaning shovel structure in the burner with manual ash cleaning mechanism of this utility model.

[0025] Figure 9 This is a schematic diagram of the upper and lower ash cleaning shovel structures in the burner with manual ash cleaning mechanism of this utility model.

[0026] Explanation of reference numerals in the attached figures

[0027] Fuel spray gun 1, primary combustion-supporting cylinder 2, pyrolysis gas cylinder 3, secondary combustion-supporting cylinder 4, heat insulation layer 5, ash removal assembly 6, wind cone hood 7, swirl blade 8, primary cyclone separator 11, refractory brick 12, pyrolysis gas channel 31, ash guide wall 32, secondary combustion-supporting channel 41, ash removal shovel 61, control lever 62, pipe seat 63, swirl air duct 81, first outer cylinder shovel 611, first inner cylinder shovel 612, first stiffener 613, second outer cylinder shovel 614, second inner cylinder shovel 615, ash pusher 616, second stiffener 617, first push rod 621, first handle 622, first arc plate 623, second push rod 624, second handle 625, second arc plate 626, air inlet A, air inlet B, air inlet C. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0031] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. The terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0032] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0033] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "lay out," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances and in conjunction with existing technology. Furthermore, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. One or more of the components shown in the figures may be necessary or not, and the relative positional relationships between the components shown in the figures can be adjusted according to actual needs.

[0034] This invention aims to realize an online manual ash cleaning function for the burner, extending its continuous operating time when using biomass pyrolysis gas as fuel, and providing a reliable guarantee for the long-term stable operation of the equipment. Figures 1 to 9 As shown, this utility model provides a burner with a manual ash removal structure, the core components of which include: an ash removal assembly 6, a fuel spray gun 1, a primary combustion-supporting cylinder 2, a pyrolysis gas cylinder 3, and a secondary combustion-supporting cylinder 4.

[0035] The specific structural relationships are as follows: Figures 1 to 4 As shown, the primary combustion-supporting cylinder 2, the pyrolysis gas cylinder 3, and the secondary combustion-supporting cylinder 4 are arranged in a nested, progressive manner. This structural design naturally forms spaced pyrolysis gas channels 31 and secondary combustion-supporting channels 41 between each cylinder. Specifically, combined with... Figure 4 It can be seen that the air inlet A of the first-stage combustion-supporting cylinder 2 is located at the lower rear of its cylinder body, the air inlet B of the pyrolysis gas cylinder 3 is located at the upper rear of its cylinder body, and the air inlet C of the second-stage combustion-supporting cylinder 4 is located at the lower rear of its cylinder body. The air inlets A, B, and C are arranged in a staggered, intermittent layout to ensure that the delivery of each medium does not interfere with each other.

[0036] In a preferred embodiment, the inner walls of the primary combustion chamber 2, the pyrolysis gas channel 31, and the secondary combustion chamber 41 are all provided with heat insulation layers 5. The function of this insulation structure is to effectively reduce heat transfer between the outer wall of the primary combustion chamber 2 and the pyrolysis gas, and between the secondary combustion chamber 4 and the pyrolysis gas, preventing the high-temperature pyrolysis gas from precipitating tar due to temperature drop, thereby preventing channel blockage caused by tar adhesion.

[0037] Regarding the arrangement of fuel spray gun 1: as follows Figure 4 As shown, the fuel injector 1 is installed inside the primary combustion chamber 2. In this embodiment, the burner adopts a dual-fuel design, and a natural gas injector or a diesel injector can be configured at its center. To enhance the mixing effect of fuel and air, a primary cyclone separator 11 is preferably installed at the head of the injector. At the same time, refractory bricks 12 are installed in the area near the head of the fuel injector 1 at the outlet of the primary combustion chamber 2 to improve the structural stability of this high-temperature area.

[0038] The specific structure of the dust removal component 6 is as follows: Figure 1 , Figure 4 As shown, it mainly consists of a cleaning shovel 61, a control lever 62, and a pipe seat 63. The pipe seat 63 is fixedly connected to the pyrolysis gas cylinder 3 and communicates with the pyrolysis gas channel 31. When the inlet nozzle A has a large structural size, the pipe seat 63 can pass through the inlet nozzle A and connect to the pyrolysis gas cylinder 3. The cleaning shovel 61 is entirely placed inside the pyrolysis gas channel 31. One end of the control lever 62 passes through the pipe seat 63 and is fixedly connected to the cleaning shovel 61. The operator can drive the cleaning shovel 61 to reciprocate within the pyrolysis gas channel 31 from outside the burner by using the control lever 62 guided by the pipe seat 63, thus achieving the cleaning operation of the channel's inner wall.

[0039] The detailed structure of the ash cleaning shovel 61 is combined with Figures 4 to 9 It can be seen that it adopts a combined design with upper and lower ash shovels:

[0040] Firstly, the upper ash scraper: composed of a first outer cylinder scraper 611, a first inner cylinder scraper 612, and a first stiffening plate 613. Both the first outer cylinder scraper 611 and the first inner cylinder scraper 612 adopt an arc-shaped blade structure, and are fixedly connected at intervals by the first stiffening plate 613, forming a long-arc double-blade structure. This structure can cover the upper half of the pyrolysis gas channel 31. Combined with... Figure 5As shown, the upper ash shovel preferably covers a 240° area of ​​the upper pipe wall of the pyrolysis gas channel 31 to ensure that there are no dead corners in the cleaning of ash accumulation in the upper area.

[0041] Secondly, the lower ash scraper includes a second outer cylinder scraper 614, a second inner cylinder scraper 615, a ash pusher plate 616, and a second stiffening plate 617. The second outer cylinder scraper 614 and the second inner cylinder scraper 615 are connected at intervals by the second stiffening plate 617, forming a short-arc double-blade structure, such as... Figure 7 As shown, the structure preferably covers a 120° area of ​​the lower pipe wall of the pyrolysis gas channel 31. The ash pusher 616 is fixedly installed on the front side of the second outer cylinder scraper 614, and its height is preferably set to half the distance between the two scrapers. This size design can ensure the ventilation efficiency of the pyrolysis gas channel 31 and achieve a high-efficiency ash pushing effect, ensuring that the ash and dirt scraped off from the top, sides and bottom of the pipe wall are completely pushed out of the channel opening.

[0042] Corresponding to the upper and lower ash shovels, the control lever 62 is divided into an upper control lever and a lower control lever, which respectively realize the independent control of the two sets of ash shovels:

[0043] like Figures 5 to 6 As shown, the upper control lever is used to drive the upper ash shovel, which consists of a first push rod 621, a first handle 622, and a first arc plate 623. To accommodate the support requirements of the long-arc double blades, the first arc plate 623 adopts a semi-circular arc structure, fixed at the middle position of the three first push rods 621 and connected into a group; the first handle 622 is designed as a semi-circular ring for easy manual operation and is fixedly connected to the front end of the group of first push rods 621; the tail end of each first push rod 621 passes through the pipe seat 63 and is fixed to the first rib plate 613 of the upper ash shovel. This structure makes it comfortable for the operator to hold when pushing and pulling the first handle 622, and at the same time, it applies force evenly to the first outer cylinder blade 611 and the first inner cylinder blade 612 through a three-point force distribution, effectively preventing blade deformation and ensuring the cleaning effect of large-area ash accumulation on the top of the pipe wall.

[0044] The structure of the lower control lever is as follows Figures 7 to 8 As shown, the device, used to control the lower ash shovel, consists of a second push rod 624, a second handle 625, and a second arc plate 626. Considering the support characteristics of the short-arc double blades, the second arc plate 626 adopts an arc-shaped structure, fixed to the middle of the two second push rods 624 and connecting them into a group. The second handle 625 is designed as a straight, round handle for easy gripping and connects to the front end of the grouped second push rods 624. The tail end of each second push rod 624 passes through the pipe seat 63 and is fixed to the second rib plate 617 of the lower ash shovel. This design allows the operator to apply force evenly to the second outer cylinder shovel blade 614 and the second inner cylinder shovel blade 615 through a two-point force application method, preventing blade deformation and ensuring the cleaning effect of ash accumulation on the lower part of the pipe wall.

[0045] Through the aforementioned split-type ash cleaning shovel 61 structural design, the upper and lower ash shovels can be independently controlled via the upper and lower control levers. Together, they can achieve comprehensive cleaning of approximately 360° of the pyrolysis gas channel 31 pipe wall. During actual cleaning operations, the upper control lever is first operated to drive the upper ash shovel to scrape the accumulated ash on the upper part of the pipe wall, loosening and removing the ash residue. Then, the lower control lever is operated to drive the lower ash shovel to scrape the accumulated ash at the bottom while simultaneously using the ash pusher plate 616 to push the scattered ash residue from the bottom of the channel out of the pyrolysis gas channel 31, completing the entire cleaning process.

[0046] To ensure airtightness during the ash removal process, packing seals (such as high-temperature resistant metal graphite seals) are installed at the mating points between the pipe seat 63 and the first push rod 621, and between the pipe seat 63 and the second push rod 624. This sealing design effectively solves the problems of flue gas leakage and air intrusion that may occur during manual online ash removal, ensuring the airtightness of the pyrolysis gas channel 31 and maintaining stable combustion conditions.

[0047] To further improve combustion efficiency, this utility model adds a two-stage cyclone separator and a wind cone shroud 7 structure in a preferred embodiment. For example... Figures 2 to 4 As shown, the wind cone shroud 7 is fixedly connected to the secondary combustion-supporting cylinder 4 and extends to the outside of the outlet of the secondary combustion-supporting channel 41; the secondary cyclone separator is composed of multiple spaced cyclone blades 8, which are installed in conjunction with the wind cone shroud 7 at the outlet of the secondary combustion-supporting channel 41 to form a cyclone duct 81 facing the outlet of the pyrolysis gas channel 31.

[0048] The working principle of the swirl structure is as follows: Under normal operating conditions, when the fuel injector 1 is stopped, the burner uses pyrolysis gas as the main fuel. The combustion air transported by the secondary combustion gas channel 41 is guided by the swirl air duct 81 to form a swirl. It forms a high-intensity mixed swirl field with the pyrolysis gas transported by the pyrolysis gas channel 31 and the primary combustion air at the burner outlet. By enhancing the mixing effect, the combustion efficiency is improved, and the pyrolysis gas is fully combusted.

[0049] Furthermore, in an optional embodiment, to prevent ash and slag generated during cleaning from falling into the internal pipes of the burner, such as... Figure 3 As shown, a guide wall 32 extends from the lower part of the outlet of the pyrolysis gas cylinder 3. The design parameters of the guide wall 32 meet the following requirements: the arc length is at least flush with the arc length of the second outer cylinder shovel 614, and the extension length is at least flush with the extension length of the wind cone shroud 7. Through this structural design, the ash slag scraped off by the upper shovel can be effectively received by the guide wall 32, and then uniformly pushed out to the outside of the pipe outlet by the lower shovel, completely avoiding the occurrence of ash slag backflow.

[0050] In summary, the burner with a manual ash removal structure provided by this utility model can efficiently remove accumulated ash inside the burner through manual online operation using the ash removal shovel 61 without interrupting combustion or affecting the overall system safety. This design fundamentally solves the problems of increased pressure drop and unstable gas supply caused by the agglomeration of tar and dust inside the pyrolysis gas channel 31, significantly extending the service life of the burner when using biomass pyrolysis gas as fuel, and providing a strong guarantee for long-term continuous operation of the equipment.

[0051] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0052] Furthermore, various different implementation methods of this utility model can be arbitrarily combined, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. A burner with a manual ash removal mechanism, characterized in that... include: The assembly includes a ash removal component, a fuel spray gun, a primary combustion-supporting cylinder, a pyrolysis gas cylinder, and a secondary combustion-supporting cylinder. The primary combustion-supporting cylinder, the pyrolysis gas cylinder, and the secondary combustion-supporting cylinder are nested sequentially to create pyrolysis gas channels and secondary combustion-supporting gas channels between each cylinder. The fuel spray gun is located inside the primary combustion-supporting cylinder. The ash removal component includes an ash removal shovel, a control lever, and a pipe seat. The pipe seat is connected to the pyrolysis gas cylinder to communicate with the pyrolysis gas channels. The ash removal shovel is located inside the pyrolysis gas channels. One end of the control lever extends into the pipe seat and connects to the ash removal shovel, allowing external control of the ash removal shovel to reciprocate and remove ash within the pyrolysis gas channels.

2. The burner with manual ash removal structure according to claim 1, characterized in that, The ash removal shovel includes an upper ash shovel and a lower ash shovel. The upper ash shovel includes a first outer cylinder shovel blade, a first inner cylinder shovel blade, and a first stiffening plate. The first outer cylinder shovel blade and the first inner cylinder shovel blade are connected at intervals via the first stiffening plate to form a long-arc double blade. The lower ash shovel includes a second outer cylinder shovel blade, a second inner cylinder shovel blade, a ash pushing plate, and a second stiffening plate. The second outer cylinder shovel blade and the second inner cylinder shovel blade are connected at intervals via the second stiffening plate to form a short-arc double blade. The ash pushing plate is located on the front side of the second outer cylinder shovel blade. There are multiple operating levers, which are respectively connected to the first stiffening plate and the second stiffening plate.

3. The burner with manual ash removal structure according to claim 2, characterized in that, The long-arc double blade and the short-arc double blade respectively cover 240° and 120° of the pyrolysis gas channel wall.

4. The burner with manual ash removal structure according to claim 1, characterized in that, The control lever includes: a push rod, a handle, and an arc plate, wherein several push rods are connected into a group via the arc plate, the handle is connected to the front end of the group of push rods respectively, and the tail end of the group of push rods extends into the pipe seat and is connected to the dust removal shovel.

5. The burner with manual ash removal structure according to claim 1, characterized in that, Also includes: The first-stage cyclone separator is located inside the first-stage combustion chamber and is fitted onto the head of the fuel injection gun.

6. The burner with a manual ash removal structure according to any one of claims 1 to 5, characterized in that, Also includes: A secondary cyclone separator and an air cone hood are provided, wherein the air cone hood is connected to the secondary combustion-supporting cylinder and extends outside the outlet of the secondary combustion-supporting channel, and the secondary cyclone separator is fitted with the air cone hood at the outlet of the secondary combustion-supporting channel to form a cyclone air duct toward the outlet of the pyrolysis gas channel.

7. The burner with manual ash removal structure according to claim 6, characterized in that, The lower part of the outlet of the pyrolysis gas cylinder is provided with a guide wall, the arc length of which is at least level with the second outer cylinder shovel and the outward extension length is at least level with the wind cone hood.

8. The burner with manual ash removal structure according to claim 1, characterized in that, The outlet of the primary combustion-supporting cylinder is equipped with refractory bricks near the head of the fuel spray gun.

9. The burner with manual ash removal structure according to claim 1, characterized in that, The inner walls of the primary combustion-supporting cylinder, the pyrolysis gas channel, and the secondary combustion-supporting channel are provided with heat insulation layers.

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