Smokeless combustion pellet burner

Abstract

The utility model discloses a kind of smokeless combustion-supporting granule combustion machines, including mounting bracket, the fixed shell is provided on the mounting bracket upside, the spiral feeding assembly is provided in the fixed shell, the fixed shell upside is provided with material box, the fixed shell front side is provided with wind box, the wind box front side is provided with furnace nozzle, the wind box is provided with igniter stick, the furnace nozzle inboard is opened with multiple air outlet holes that communicate with furnace nozzle inner cavity, the mounting bracket is provided with fan fixing plate, the fan fixing plate upside is provided with air blower;The furnace nozzle is provided with ash pushing assembly for pushing furnace ash;The utility model improves the combustion effect of granular fuel by air blower, wind box and furnace nozzle with air outlet hole, and carbon monoxide, methane and other combustible gases generated by granular fuel combustion can be secondary combustion, achieve the effect of smokeless and increase calorific value, realize the efficient combustion of solid granular fuel and secondary combustion-supporting.

Description

Technical Field

[0001] This utility model belongs to the field of fruit and vegetable drying technology and relates to a smokeless combustion-assisted pellet burner. Background Technology

[0002] Currently, pellet fuel is made from waste agricultural products such as straw, rice straw, bark, peanut shells, and wood through processes such as crushing, mixing, extrusion, and drying. Existing pellet fuel burners ignite the pellet fuel in the combustion chamber using an ignition device and blow air into the combustion chamber using a blower. However, this type of pellet fuel burner has low thermal energy utilization efficiency.

[0003] Chinese utility model patent CN204478020U discloses a smokeless pellet burner, including a feeding device, a burner, a heat energy utilization system, and a waste heat recovery system. A circulating fan is connected to the thermal channel formed between the inner liner and the inspection door of the heat energy utilization system; the circulating fan is connected to a drying oven. The exhaust fan of the heat energy recovery system is connected to a waste heat recovery pipe, and the end of the waste heat recovery pipe is connected to an induced draft fan via a cyclone separator. However, the existing technologies mentioned above can only meet the requirement of single combustion of pellet fuel, resulting in incomplete combustion of pellet fuel. Combustible gases such as carbon monoxide and methane produced by pellet fuel combustion are directly emitted, wasting combustible resources and generating smoke pollution in the environment. Utility Model Content

[0004] To address the problem that existing technologies can only achieve single-stage combustion of pellet fuel, resulting in incomplete combustion and the direct emission of combustible gases such as carbon monoxide and methane, which wastes combustible resources and pollutes the environment, this invention proposes a smokeless combustion-assisted pellet burner. This effectively solves the problem of existing technologies only achieving single-stage combustion of pellet fuel, resulting in incomplete combustion and the direct emission of combustible gases such as carbon monoxide and methane, which wastes combustible resources and pollutes the environment.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a smokeless combustion-aiding pellet burner, comprising a mounting frame, a fixed shell provided on the upper side of the mounting frame, a spiral feeding assembly provided inside the fixed shell, a material box connected to the spiral feeding assembly provided on the upper side of the fixed shell, a wind box provided on the front side of the fixed shell, a furnace nozzle provided on the front side of the wind box, an ignition rod located below the spiral feeding assembly provided inside the wind box, the ignition end of the ignition rod located inside the furnace nozzle, the output end of the spiral feeding assembly extending through the wind box to the inside of the furnace nozzle, the furnace nozzle having a hollow structure, and multiple air outlet holes connected to the inner cavity of the furnace nozzle provided on the inner side of the furnace nozzle, a fan fixing plate provided inside the mounting frame, a blower provided on the upper side of the fan fixing plate, the air outlet of the blower and the inner cavity of the furnace nozzle being connected to the inside of the wind box; The furnace nozzle is equipped with an ash-pushing component for pushing the ash.

[0006] Furthermore, the ash pushing assembly includes a push plate that is slidably connected to the inside of the furnace nozzle and an electric push rod mounted on the mounting frame. The output shaft of the electric push rod is fixedly connected to the push plate by a connecting plate.

[0007] Furthermore, the outer side of the push plate is provided with multiple through holes, and the inner side of the push plate is connected to the air box.

[0008] Furthermore, the spiral feeding assembly includes a feeding cylinder disposed inside the fixed shell, an auger rotatably connected inside the feeding cylinder, the lower end of the material box communicating with the feeding cylinder, and a driving assembly for driving the auger to rotate disposed inside the fixed shell.

[0009] Furthermore, the drive assembly includes a rotating motor disposed inside the fixed housing, and the output shaft of the rotating motor is fixedly connected to the end of the auger by a coupling.

[0010] Furthermore, the bellows has two windows symmetrically opened on its left and right sides, and window panels that can be detachably connected to the left and right sides of the bellows to close the windows.

[0011] Furthermore, an upper baffle plate is provided on the upper side of the burner nozzle.

[0012] Furthermore, a controller electrically connected to the rotating motor, the blower, and the electric push rod is provided on the upper side of the fixed housing.

[0013] Furthermore, the mounting bracket has four casters arranged in a rectangular array on its lower side.

[0014] Compared with the prior art, the present invention has the following beneficial effects: This invention provides oxygen for the combustion of pellet fuel through a blower, a bellows, and a burner nozzle with air outlets, thereby improving the combustion efficiency of the pellet fuel. At the same time, the oxygen output from the air outlets on both sides of the burner nozzle can undergo secondary combustion with combustible gases such as carbon monoxide and methane produced by the combustion of pellet fuel, achieving the effect of smokeless combustion and increased calorific value. This realizes efficient combustion of solid pellet fuel and secondary combustion assistance, reducing the emission of combustion smoke. This invention uses an ash-pushing component to periodically push slag out of the combustion zone from the burner nozzle, ensuring the combustion effect and efficiency of the particles in the burner nozzle, avoiding uneven combustion and blockage caused by ash accumulation, reducing the frequency of manual cleaning and improving long-term operational stability. This invention enables rapid feeding and uniform conveying of pellet fuel through a material box and a screw feeding assembly, improving the convenience of feeding for workers and further enhancing the working efficiency of the device during use. Attached Figure Description

[0015] Figure 1 This is the first perspective view of the present utility model; Figure 2 This is a second perspective view of the present invention; Figure 3 This is a schematic diagram of the structure of this utility model; Figure 4 This is a perspective view of the internal structure of this utility model; Figure 5 This is a perspective view of the bellows and burner nozzle of this utility model; Figure 6 This utility model Figure 5 A 3D diagram of the internal structure.

[0016] In the diagram: 1. Mounting bracket; 2. Fixed shell; 3. Material box; 4. Controller; 5. Rotary motor; 6. Coupling; 8. Screwdriver; 9. Ignition rod; 10. Furnace nozzle; 11. Bellows; 12. Electric push rod; 13. Connecting plate; 14. Push plate; 15. Blower; 16. Upper baffle plate; 17. Blower fixing plate; 18. Window plate; 19. Casters. Detailed Implementation

[0017] 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. Example 1

[0018] A smokeless combustion pellet burner includes a mounting frame 1, a fixed shell 2 on the upper side of the mounting frame 1, a spiral feeding assembly inside the fixed shell 2, a material box 3 communicating with the spiral feeding assembly on the upper side of the fixed shell 2, a wind box 11 on the front side of the fixed shell 2, a burner nozzle 10 on the front side of the wind box 11, an ignition rod 9 located below the spiral feeding assembly inside the wind box 11, the ignition end of the ignition rod 9 located inside the burner nozzle 10, the output end of the spiral feeding assembly extending through the wind box 11 to the inside of the burner nozzle 10, the burner nozzle 10 having a hollow structure, and multiple air outlet holes communicating with the inner cavity of the burner nozzle 10 opening on the inner side of the burner nozzle 10, a blower fixing plate 17 inside the mounting frame 1, a blower 15 on the upper side of the blower fixing plate 17, the air outlet of the blower 15 and the inner cavity of the burner nozzle 10 both communicating with the inside of the wind box 11; The burner nozzle 10 is equipped with an ash-pushing component for pushing the ash.

[0019] In this embodiment, the ash pushing assembly includes a push plate 14 that is slidably connected to the inside of the nozzle 10 and an electric push rod 12 that is mounted on the mounting frame 1. The output shaft of the electric push rod 12 is fixedly connected to the push plate 14 by a connecting plate 13.

[0020] In this embodiment, the outer side of the push plate 14 is provided with multiple through holes, and the inner side of the push plate 14 is connected to the air box 11.

[0021] In this embodiment, the spiral feeding assembly includes a feeding cylinder disposed inside the fixed shell 2, an auger 8 rotatably connected inside the feeding cylinder, the lower end of the material box 3 communicating with the feeding cylinder, and a driving assembly for driving the auger 8 to rotate disposed inside the fixed shell 2.

[0022] In this embodiment, the drive assembly includes a rotary motor 5 disposed inside the fixed housing 2, and the output shaft of the rotary motor 5 is fixedly connected to the end of the auger 8 by a coupling 6.

[0023] In this embodiment, the bellows 11 has two windows symmetrically opened on its left and right sides, and window panels 18 that close the windows are detachably connected to the left and right sides of the bellows 11. During use, the staff can remove the window panel 18 and clean out the slag and ash inside the bellows 11 and the nozzle 10 through the window on the side of the bellows 11, ensuring the cleanliness and connectivity of the nozzle 10 and the bellows 11, improving the air circulation effect in the nozzle 10 and the bellows 11, and thus improving the reliability of the device during use.

[0024] In this embodiment, an upper baffle plate 16 is bolted to the upper side of the burner nozzle 10; When in use, the upper baffle plate 16 can guide and shield the airflow above the burner nozzle 10, ensuring stable airflow inside the burner nozzle 10, promoting secondary combustion inside the burner nozzle 10, reducing fly ash and smoke emissions inside the burner nozzle 10, and improving the clean combustion performance of the device.

[0025] In this embodiment, a controller 4 is provided on the upper side of the fixed shell 2, which is electrically connected to the rotating motor 5, the blower 15 and the electric push rod 12.

[0026] In this embodiment, the mounting bracket 1 has four casters 19 arranged in a rectangular array on its lower side; When in use, staff can easily and quickly move the device to the work position by using the casters 19. At the same time, the casters 19 allow the device to rotate in multiple directions when moving, further improving the flexibility of the device when in use.

[0027] The components selected in the above embodiments are as follows: The combustion rod is a common type with a rated voltage of 120V. The specific model can be selected by the staff based on the on-site production conditions. The blower is a dedicated industrial frequency blower for combustion engines, specifically model KF-130FLJ2, with a frequency of 50Hz, a power of 120W, and an air volume of 450m³ / h. 3 / h; The specific model of the rotating motor is 5IK60GU-CFT, with a power of 60W, a rated voltage of 220V, and a frequency of 50Hz. The staff can select and adjust the models of the above components according to the actual production needs.

[0028] The working principle of the above embodiments is as follows: When in use, the staff pours the pellet fuel into the feed box 3. Under the action of gravity, the pellet fuel in the feed box 3 falls into the feeding cylinder. At this time, the drive motor drives the auger 8 to rotate at a constant speed under the action of the coupling 6 to transport the pellet fuel into the nozzle 10. When the pellet fuel is delivered to the burner nozzle 10, the ignition rod 9 ignites the pellet fuel in the burner nozzle 10 under the control of the controller 4. At the same time, the blower 15 transfers air to the inside of the air box 11 and delivers it into the burner nozzle 10 through the opening between the air box 11 and the burner nozzle 10. After the air enters the burner nozzle 10, it is discharged through the air outlets on the lower and rear sides of the burner nozzle 10, forming a good mixture with the pellet fuel, providing oxygen for the pellet fuel, and improving the combustion effect of the pellet fuel. Subsequently, the combustible gases such as carbon monoxide and methane produced by the combustion of the pellet fuel rise upward and undergo secondary combustion with the oxygen output from the air outlets on both sides of the burner nozzle 10, achieving the effect of smokeless combustion and increased calorific value, realizing the efficient combustion of solid pellet fuel and secondary combustion assistance, and reducing the emission of combustion smoke. After the solid fuel has been fully burned, the operator controls the electric push rod 12 to push the push plate 14 outward through the controller 4. When the push plate 14 is pushed outward, it can periodically push the slag in the burner nozzle 10 away from the combustion zone, ensuring the combustion effect and efficiency of the particles in the burner nozzle 10.

[0029] 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 smokeless combustion-aiding pellet burner, comprising a mounting frame (1), characterized in that: A fixed shell (2) is provided on the upper side of the mounting bracket (1). A screw feeding assembly is provided inside the fixed shell (2). A material box (3) communicating with the screw feeding assembly is provided on the upper side of the fixed shell (2). A bellows (11) is provided on the front side of the fixed shell (2). A furnace nozzle (10) is provided on the front side of the bellows (11). An ignition rod (9) located below the screw feeding assembly is provided inside the bellows (11). The ignition end of the ignition rod (9) is located inside the furnace nozzle (10). On the side, the output end of the spiral feeding assembly extends through the wind box (11) to the inside of the nozzle (10). The nozzle (10) is a hollow structure, and the inner side of the nozzle (10) is provided with multiple air outlet holes that communicate with the inner cavity of the nozzle (10). A fan fixing plate (17) is provided in the mounting bracket (1), and a blower (15) is provided on the upper side of the fan fixing plate (17). The air outlet of the blower (15) and the inner cavity of the nozzle (10) are both connected to the inside of the wind box (11). The burner nozzle (10) is equipped with an ash-pushing component for pushing the ash.

2. The smokeless combustion-aiding pellet burner according to claim 1, characterized in that: The ash pushing assembly includes a push plate (14) that is slidably connected to the inside of the nozzle (10) and an electric push rod (12) that is mounted on the mounting frame (1). The output shaft of the electric push rod (12) is fixedly connected to the push plate (14) by a connecting plate (13).

3. The smokeless combustion-aiding pellet burner according to claim 2, characterized in that: The outer side of the push plate (14) is provided with multiple through holes, and the inner side of the push plate (14) is connected to the bellows (11).

4. The smokeless combustion-aiding pellet burner according to claim 1, characterized in that: The spiral feeding assembly includes a feeding cylinder disposed inside the fixed shell (2), an auger (8) is rotatably connected inside the feeding cylinder, the lower end of the material box (3) is connected to the feeding cylinder, and a driving assembly for driving the auger (8) to rotate is disposed inside the fixed shell (2).

5. The smokeless combustion-aiding pellet burner according to claim 4, characterized in that: The drive assembly includes a rotating motor (5) disposed inside the fixed housing (2), and the output shaft of the rotating motor (5) is fixedly connected to the end of the auger (8) by a coupling (6).

6. The smokeless combustion-aiding pellet burner according to claim 1, characterized in that: The bellows (11) has two windows symmetrically opened on its left and right sides, and window panels (18) that close the windows are detachably connected to the left and right sides of the bellows (11).

7. The smokeless combustion-supporting pellet burner according to claim 1, characterized in that: An upper baffle plate (16) is provided on the upper side of the burner nozzle (10).

8. The smokeless combustion-aiding pellet burner according to claim 1, 2, or 5, characterized in that: The upper side of the fixed housing (2) is provided with a controller (4) that is electrically connected to the rotating motor (5), the blower (15) and the electric push rod (12).

9. The smokeless combustion-aiding pellet burner according to claim 1, characterized in that: The mounting bracket (1) has four casters (19) arranged in a rectangular array on its lower side.

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