Multi-channel premixed biomass gas pulse burner

Abstract

The invention relates to the technical field of fuel gas treatment, in particular to a multi-channel premixed biomass fuel gas pulse burner. The device comprises a stirring assembly, the stirring assembly comprises a stirring net, stirring blades are fixedly arranged in the stirring net, a motor used for driving the stirring net and the stirring blades to rotate is fixedly arranged on the side, away from the filtering bin, of the mixing bin, and a drainage assembly is arranged in the mixing bin. A motor drives a stirring net and stirring blades to rotate and stirs air and biomass gas in the mixing bin, and meanwhile, the motor drives two drainage plates to rotate and guides gas in the mixing bin to flow, so that the air and the gas in the mixing bin are fully mixed; and the situation that gas and air are not mixed uniformly, so that the gas is difficult to burn sufficiently is prevented.

Description

Technical Field

[0001] This invention relates to the field of gas treatment technology, and more specifically, to a multi-channel premixed biomass gas pulse burner. Background Technology

[0002] Biomass gas refers to combustible gas generated from biomass (such as crop straw, forestry waste, livestock and poultry manure, organic household waste, etc.) through biochemical or thermochemical conversion. It belongs to renewable and clean energy, and its composition is closely related to the preparation process. Typical products include biogas, biomass syngas, and biomethane. It has the characteristics of low carbon, recyclability, and distributed production, and is an important direction for replacing fossil fuels. Biomass gas is mostly used in heating, chemical, and metallurgical fields. In chemical and metallurgical fields, biomass gas pulse burners are usually used to burn biomass gas.

[0003] Biomass gas pulse burners can be used in equipment such as heating furnaces and reaction furnaces in chemical production to provide the heat required for chemical reactions. During operation, biomass gas pulse burners require mixing biomass fuel gas with air. Existing biomass gas pulse burners mostly use a negative pressure intake method to mix air and fuel gas. During operation, a negative pressure is formed in the combustion chamber. During the intake phase, the fuel gas and air valves open, and fuel gas and air are drawn into the combustion chamber for mixing. This mixing method relies on passive air intake after fuel gas combustion, rather than active air supply. When the fuel gas flow fluctuates, the amount of air drawn in under negative pressure cannot respond in time, leading to excessively high or low fuel gas concentrations in localized areas. This leads to uneven mixing of biomass gas and air, making it difficult for the gas to burn completely. Simultaneously, as air enters the burner, dust and impurities continuously adhere to the filter element at the burner's air inlet. When excessive dust accumulates on the filter element, air struggles to pass through and enter the burner. Therefore, the filter element at the burner's air inlet requires frequent cleaning or replacement. If replacement is not timely, the dust-covered filter element significantly reduces its air filtration efficiency, slowing the airflow into the burner and affecting the mixing speed of biomass gas and air, thus reducing the device's operating efficiency. Therefore, we propose a multi-channel premixed biomass gas pulse burner. Summary of the Invention

[0004] The purpose of this invention is to provide a multi-channel premixed biomass gas pulse burner to solve the problems mentioned in the background art. 1. Existing biomass gas pulse burners have difficulty mixing air and gas evenly, resulting in incomplete combustion of the gas.

[0005] 2. Excessive dust accumulation on the surface of the filter element at the burner's air inlet can reduce the filter element's air filtration efficiency, thereby reducing the mixing speed of fuel gas and air.

[0006] To achieve the above objectives, a multi-channel premixed biomass gas pulse burner is provided, comprising a mixing chamber, a filter chamber fixedly disposed on one side of the mixing chamber, a stirring assembly disposed inside the mixing chamber, the stirring assembly comprising a stirring screen, stirring blades fixedly disposed inside the stirring screen, the stirring screen and stirring blades being coaxially connected, the stirring screen being rotatably disposed inside the mixing chamber, the stirring screen and stirring blades being used to agitate the gas inside the mixing chamber, a motor being fixedly disposed on the side of the mixing chamber away from the filter chamber for driving the stirring screen and stirring blades to rotate, an air inlet being opened on one side of the filter chamber, a filter assembly disposed inside the filter chamber for filtering the air entering the filter chamber and conveying it into the mixing chamber, and a flow guiding assembly disposed inside the mixing chamber for guiding the flow of gas inside the mixing chamber.

[0007] The air filtered by the filter components is delivered into the mixing chamber. At this time, the motor starts and drives the stirring screen and stirring blades to agitate the air and biomass gas inside the mixing chamber to mix them thoroughly. At the same time, the motor drives the flow guide components to guide the gas flow inside the mixing chamber.

[0008] As a further improvement to this technical solution, the filter assembly includes a first partition, a second partition is provided on one side of the first partition, the first partition and the second partition are both fixedly disposed inside the filter chamber, a filter element is fixedly disposed between the first partition and the second partition, the filter element is disposed on one side of the air inlet of the filter chamber, and the first partition and the second partition are used to support the filter element and prevent unfiltered air from entering the interior of the filter chamber.

[0009] The first and second partitions are fitted to the inner wall of the filter chamber on all four sides to prevent impurities in the unfiltered air from contaminating the inside of the filter chamber. The air outside the filter chamber enters the filter chamber after being filtered by the filter element through the air inlet on one side of the filter chamber.

[0010] As a further improvement to this technical solution, a third partition is provided on the side of the second partition away from the first partition. The third partition is fixedly installed inside the filter chamber. A conveying pipe is fixedly installed on the side of the third partition away from the second partition. One end of the conveying pipe is located between the second and third partitions, and the other end is fixedly installed inside the mixing chamber. An air pump is installed in the middle of the conveying pipe and is fixedly installed inside the filter chamber. The air pump is used to draw air between the second and third partitions into the mixing chamber through the conveying pipe.

[0011] When the air pump starts, it draws the filtered air between partitions two and three into the mixing chamber through the delivery pipe. After some of the air between partitions two and three is removed, the pressure between them becomes lower than the pressure outside the filter chamber. At this point, the air outside the filter chamber enters the chamber more quickly, thus increasing the speed at which the delivery pipe conveys air into the mixing chamber, thereby improving the efficiency of the device. As a further improvement to this technical solution, a cleaning component is provided on the upper side of the conveying pipe. The cleaning component includes a crossbar, which is rotatably disposed inside the filter chamber. One end of the crossbar is rotatably disposed inside the mixing chamber and fixedly connected to the rotating shaft of the motor. A first bevel gear is fixedly disposed at the other end of the crossbar. A second bevel gear is meshed on the first bevel gear. Both the first bevel gear and the second bevel gear are disposed inside the filter chamber.

[0012] When the motor starts, it drives the crossbar to rotate, and at the same time, the crossbar drives the first bevel gear to rotate, which in turn drives the second bevel gear to rotate.

[0013] As a further improvement to this technical solution, a first connecting rod is fixedly installed on one side of the second bevel gear. The first connecting rod is rotatably inserted between the filter element and the third partition. The end of the first connecting rod away from the second bevel gear is rotatably installed at the center position on one side of the filter element. Multiple scrapers are fixedly installed on the end of the first connecting rod close to the filter element. One side of the scraper is in contact with the filter element, and the scraper is used to clean one side of the filter element.

[0014] When the No. 2 bevel gear rotates, it drives the No. 1 connecting rod to rotate. When the No. 1 connecting rod rotates, it drives the scraper to rotate in contact with the filter element. As the scraper rotates, it scrapes off the dust and impurities attached to the surface of the filter element.

[0015] As a further improvement to this technical solution, the flow-guiding assembly includes a No. 3 bevel gear, which is fixedly mounted on the motor shaft. A No. 4 bevel gear is symmetrically meshed with the No. 3 bevel gear, and both the No. 3 and No. 4 bevel gears are located on the side of the stirring screen away from the filter chamber.

[0016] When the mixing net starts, it drives the No. 3 bevel gear to rotate, and at the same time, the No. 3 bevel gear drives the two No. 4 bevel gears to rotate.

[0017] As a further improvement to this technical solution, a second connecting rod is fixedly installed on one side of the fourth bevel gear. The second connecting rod is rotatably installed inside the mixing chamber. A fifth bevel gear is fixedly installed at the end of the second connecting rod away from the fourth bevel gear. A sixth bevel gear is meshed on the fifth bevel gear. A flow guide plate is fixedly installed on one side of the sixth bevel gear. The flow guide plate is rotatably installed inside the mixing chamber. The two flow guide plates are respectively installed on the upper and lower sides of the stirring net.

[0018] When the No. 4 bevel gear rotates, it drives the No. 2 connecting rod and the No. 5 bevel gear to rotate. At the same time, the No. 5 bevel gear drives the No. 6 bevel gear and the guide plate to rotate. When the two guide plates rotate, they agitate the gas inside the mixing chamber and guide the gas inside the mixing chamber to flow.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In this multi-channel premixed biomass gas pulse burner, the motor drives the stirring mesh and stirring blades to rotate and agitate the air and biomass gas inside the mixing chamber. At the same time, the motor drives the No. 3 bevel gear to rotate, which in turn drives the No. 4 bevel gear, the No. 2 connecting rod, and the No. 5 bevel gear to rotate. The No. 5 bevel gear drives the No. 6 bevel gear and the guide plate to rotate and guide the gas flow inside the mixing chamber, so that the air and gas inside the mixing chamber are fully mixed, preventing uneven mixing of gas and air that would make it difficult for the gas to be fully burned.

[0020] 2. In this multi-channel premixed biomass gas pulse burner, the motor drives the stirring net and stirring blades to agitate the air inside the mixing chamber, while simultaneously driving the crossbar and the first bevel gear to rotate. At the same time, the first bevel gear drives the second bevel gear and the first connecting rod to rotate, and the first connecting rod drives the scraper to rotate and scrape off the dust adhering to the surface of the filter element. This prevents excessive dust on the surface of the filter element from making it difficult for air to pass through the filter element and enter the interior of the filter chamber, thereby improving the mixing efficiency of the device for air and gas. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a side view of the overall structure of the present invention; Figure 3 This is one of the cross-sectional views of the hybrid storage structure of the present invention; Figure 4 This is a schematic diagram of the stirring assembly structure of the present invention; Figure 5 This is a cross-sectional view of the filter chamber structure of the present invention; Figure 6 This is a schematic diagram of the filter assembly structure of the present invention; Figure 7 This is a second cross-sectional view of the mixing chamber structure of the present invention; Figure 8 This is a schematic diagram of the drainage component structure of the present invention; Figure 9 For the present invention Figure 8 Enlarged view of the structure at point A in the middle; Figure 10 This is a cross-sectional view of the mixing chamber and combustion chamber structure of the present invention; Figure 11 This is a schematic diagram of the combustion assembly structure of the present invention.

[0022] The meanings of the labels in the diagram are as follows: 1. Mixing chamber; 2. Filtering chamber; 3. Agitator assembly; 31. Agitator screen; 32. Agitator blades; 33. Motor; 4. Filter assembly; 41. First partition; 42. Second partition; 43. Filter element; 44. Third partition; 45. Delivery pipe; 46. Air pump; 47. Cleaning components; 471. Crossbar; 472. First bevel gear; 473. Second bevel gear; 474. First connecting rod; 475. Scraper; 5. Drainage assembly; 51. No. 3 bevel gear; 52. No. 4 bevel gear; 53. No. 2 connecting rod; 54. No. 5 bevel gear; 55. No. 6 bevel gear; 56. Drainage plate; 6. Combustion chamber; 7. Combustion assembly; 71. Combustion tube; 72. Pulse nozzle; 73. Igniter; 74. Valve; 75. Throttle; 8. Intake pipe. Detailed Implementation

[0023] 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 scope of protection of the present invention.

[0024] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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 invention. Example

[0025] Please see Figures 2-6 As shown, the purpose of this embodiment is to provide a multi-channel premixed biomass gas pulse burner, including a mixing chamber 1. A filter chamber 2 is fixedly disposed on one side of the mixing chamber 1. An air inlet is opened on one side of the filter chamber 2. A filter assembly 4 is disposed inside the filter chamber 2. The filter assembly 4 is used to filter the air entering the filter chamber 2 and deliver it into the mixing chamber 1. The filter assembly 4 includes a first partition 41. A second partition 42 is disposed on one side of the first partition 41. Both the first partition 41 and the second partition 42 are fixedly disposed inside the filter chamber 2. A filter element 43 is fixedly disposed between the first partition 41 and the second partition 42. The filter element 43 is disposed on one side of the air inlet of the filter chamber 2. The first partition 41 and the second partition 42 are all in contact with the inner wall of the filter chamber 2. The first partition 41 and the second partition 42 are used to support the filter element 43 and prevent unfiltered air from entering the interior of the filter chamber 2. To prevent impurities in unfiltered air from contaminating the interior of filter chamber 2, external air enters the interior of filter chamber 2 after being filtered by filter element 43 through the air inlet on one side of filter chamber 2.

[0026] Please see Figures 2-6 As shown, a third partition 44 is provided on the side of the second partition 42 away from the first partition 41. The third partition 44 is fixedly installed inside the filter chamber 2, and its four sides are in contact with the inner wall of the filter chamber 2. The air filtered by the filter element 43 flows through the filter element 43 to the space between the second partition 42 and the third partition 44. A conveying pipe 45 is fixedly installed on the side of the third partition 44 away from the second partition 42. One end of the conveying pipe 45 is located between the second partition 42 and the third partition 44, and the other end is fixedly installed inside the mixing chamber 1. An air pump 46 is installed in the middle of the conveying pipe 45 and is fixedly installed in the filter chamber. Inside chamber 2, the air pump 46 is used to pump the air between the second partition 42 and the third partition 44 through the delivery pipe 45 into the mixing chamber 1. The user starts the air pump 46 to pump the filtered air between the second partition 42 and the third partition 44 into the mixing chamber 1 through the delivery pipe 45. After a portion of the air between the second partition 42 and the third partition 44 is removed, the pressure between the second partition 42 and the third partition 44 is lower than the pressure outside the filter chamber 2. At this time, the air outside the filter chamber 2 enters the filter chamber 2 at a faster speed, which increases the speed at which the delivery pipe 45 delivers air into the mixing chamber 1 to improve the working efficiency of the device.

[0027] Please see Figures 1-4As shown, an air inlet pipe 8 for inputting biomass gas into the mixing chamber 1 is fixedly installed on one side. While air is being supplied to the mixing chamber 1, the user connects the air inlet pipe 8 to a pipeline supplying biomass gas, and then supplies the biomass gas into the mixing chamber 1 through the air inlet pipe 8. After entering the mixing chamber 1 through the air inlet pipe 8, the biomass gas mixes with the air inside the mixing chamber 1. An agitator 3 is installed inside the mixing chamber 1. The agitator 3 includes an agitator mesh 31, and agitator blades 32 are fixedly installed inside the agitator mesh 31. The agitator mesh 31 and the agitator blades 32 are coaxially connected. The mixing mesh 31 is rotatably installed inside the mixing chamber 1. When the mixing mesh 31 rotates, it drives the stirring blades 32 to rotate in the same direction. The mixing mesh 31 and the stirring blades 32 are used to agitate the gas inside the mixing chamber 1. A motor 33 is fixedly installed on the side of the mixing chamber 1 away from the filter chamber 2 to drive the mixing mesh 31 and the stirring blades 32 to rotate. After the air and biomass gas are delivered into the mixing chamber 1, the user starts the motor 33 to drive the mixing mesh 31 and the stirring blades 32 to rotate and agitate the biomass gas and air inside the mixing chamber 1 to accelerate the mixing speed.

[0028] Please see Figures 2-6 As shown, a cleaning component 47 is provided on the upper side of the conveying pipe 45. The cleaning component 47 includes a crossbar 471, which is rotatably disposed inside the filter chamber 2. One end of the crossbar 471 is rotatably disposed inside the mixing chamber 1 and is fixedly connected to the rotating shaft of the motor 33. When the motor 33 starts, it drives the crossbar 471 to rotate. A first bevel gear 472 is fixedly disposed on the other end of the crossbar 471. A second bevel gear 473 is meshed on the first bevel gear 472. Both gear 472 and bevel gear 473 are located inside filter chamber 2. When the crossbar 471 rotates, it drives bevel gear 472 to rotate. At the same time, bevel gear 472 drives bevel gear 473 to rotate. A connecting rod 474 is fixedly installed on one side of bevel gear 473. The connecting rod 474 rotates and passes between filter element 43 and partition plate 44. When bevel gear 473 rotates, it drives connecting rod 474 to rotate.

[0029] Please see Figures 2-6As shown, the end of the first connecting rod 474 away from the second bevel gear 473 is rotatably positioned at the center of one side of the filter element 43. Multiple scrapers 475 are fixedly installed on the end of the first connecting rod 474 near the filter element 43. To allow the scrapers 475 to scrape off dust and impurities adhering to the surface of the filter element 43 during rotation, one side of the scraper 475 is in contact with the filter element 43. The side of the scraper 475 near the filter element 43 is made of rubber. The scrapers 475 are used to clean one side of the filter element 43. The motor 33, while driving the stirring blades 32 and the stirring screen 31 to agitate the gas inside the mixing chamber 1, also drives the horizontal... The rod 471 rotates, and at the same time, the crossbar 471 drives the first bevel gear 472 to rotate. The first bevel gear 472 drives the second bevel gear 473 and the first connecting rod 474 to rotate, and drives the scraper 475 to rotate in contact with the filter element 43. While rotating, the scraper 475 scrapes off the dust and impurities attached to the surface of the filter element 43, preventing the filter element 43 from being clogged by too much dust. The lower side of the filter chamber 2 has a slot corresponding to the position of the filter element 43 near the scraper 475. After the dust on the surface of the filter element 43 is scraped off, it falls through the slot on the lower side of the filter chamber 2.

[0030] Please see Figures 1-9 As shown, a flow guiding component 5 is installed inside the mixing chamber 1. The flow guiding component 5 is used to guide the flow of gas inside the mixing chamber 1. The flow guiding component 5 includes a third bevel gear 51, which is fixedly mounted on the rotating shaft of the motor 33. A fourth bevel gear 52 is symmetrically meshed on the third bevel gear 51. Both the third bevel gear 51 and the fourth bevel gear 52 are located on the side of the stirring screen 31 away from the filter chamber 2. When the stirring screen 31 is started, it drives the third bevel gear 51 to rotate. At the same time, the third bevel gear 51 drives the two fourth bevel gears 52 to rotate. A second connecting rod 53 is fixedly mounted on one side of the fourth bevel gear 52. The second connecting rod 53 is rotatably mounted inside the mixing chamber 1. A fifth bevel gear 54 is fixedly mounted on the end of the second connecting rod 53 away from the fourth bevel gear 52. When the fourth bevel gear 52 rotates, it drives the second connecting rod 53 and the fifth bevel gear 54 to rotate.

[0031] Please see Figures 1-9As shown, a No. 6 bevel gear 55 is meshed with a No. 5 bevel gear 54. A guide plate 56 is fixedly installed on one side of the No. 6 bevel gear 55. The guide plate 56 is rotatably installed inside the mixing chamber 1. The two guide plates 56 are respectively installed on the upper and lower sides of the stirring net 31. When the No. 5 bevel gear 54 rotates, it drives the No. 6 bevel gear 55 and the guide plate 56 to rotate. When the two guide plates 56 rotate, they agitate the gas inside the mixing chamber 1. The lower guide plate 56 agitates the gas inside the mixing chamber 1 and guides the gas inside the mixing chamber 1 to flow upward. A combustion chamber 6 is fixedly installed on the upper side of the mixing chamber 1. Then, the upper guide plate 56 guides the gas inside the mixing chamber 1 to flow towards the side close to the combustion chamber 6, so that the mixed gas inside the mixing chamber 1 quickly enters the combustion chamber 6 for combustion.

[0032] Please see Figures 1-11 As shown, a combustion assembly 7 is installed inside the combustion chamber 6. The combustion assembly 7 includes a combustion pipe 71. The two ends of the combustion pipe 71 are fixedly installed inside the mixing chamber 1 and the combustion chamber 6, respectively. The combustion pipe 71 is used to transport the mixed gas inside the mixing chamber 1 to the inside of the combustion chamber 6. A valve 74 is fixedly installed in the middle of the combustion pipe 71. The valve 74 is installed inside the mixing chamber 1. A handle 75 is rotatably installed on the upper side of the valve 74. One end of the handle 75 is rotatably installed on the upper side of the mixing chamber 1. The valve 74 is used to control the flow rate of the gas inside the combustion pipe 71. After the biomass fuel gas and air inside the mixing chamber 1 are fully mixed, the user opens the piston inside the valve 74 by turning the handle 75. Then the mixed gas inside the mixing chamber 1 immediately flows into the inside of the combustion pipe 71.

[0033] Please see Figures 1-11 As shown, a pulse nozzle 72 is fixedly installed at one end of the combustion tube 71 inside the combustion chamber 6. The mixed gas inside the combustion tube 71 flows to the pulse nozzle 72 and is then ejected through the pulse nozzle 72. An igniter 73 is fixedly installed on the upper side of the combustion tube 71. The igniter 73 is located inside the combustion chamber 6, with one end of the igniter 73 located on one side of the pulse nozzle 72. The igniter 73 is used to ignite the mixed gas ejected from the pulse nozzle 72. When the mixed gas is ejected from the pulse nozzle 72, the user ignites the mixed gas by operating the igniter 73. The ignited mixed gas is ejected through one end of the combustion chamber 6. The size of the flame ejected from one end of the combustion chamber 6 depends on the flow speed of the mixed gas inside the combustion tube 71. At this time, the user controls the flow speed of the mixed gas inside the combustion tube 71 by adjusting the number of rotations of the throttle 75 to adjust the size of the flame ejected from one end of the combustion chamber 6.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-channel premixed biomass gas pulse combustor comprising a mixing bin (1), one side of the mixing bin (1) is fixedly provided with a filter bin (2), characterized in that: The inside of the mixing bin (1) is provided with a stirring assembly (3), the stirring assembly (3) comprises a stirring net (31), the inside of the stirring net (31) is fixedly provided with stirring blades (32), the stirring net (31) and the stirring blades (32) are coaxially connected, the stirring net (31) is rotationally arranged in the inside of the mixing bin (1), the stirring net (31) and the stirring blades (32) are used for stirring the gas in the inside of the mixing bin (1), the side of the mixing bin (1) away from the filter bin (2) is fixedly provided with a motor (33) for driving the stirring net (31) and the stirring blades (32) to rotate, one side of the filter bin (2) is provided with an air inlet, the inside of the filter bin (2) is provided with a filter assembly (4), the filter assembly (4) is used for filtering the air entering the inside of the filter bin (2) and conveying to the inside of the mixing bin (1), the inside of the mixing bin (1) is provided with a flow guide assembly (5), the flow guide assembly (5) is used for guiding the gas in the inside of the mixing bin (1) to flow.

2. The multi-channel premixed biomass gas pulse combustor of claim 1, wherein: The filter assembly (4) comprises a first partition plate (41), the side of the first partition plate (41) is provided with a second partition plate (42), the first partition plate (41) and the second partition plate (42) are fixedly arranged in the inside of the filter bin (2), the middle of the first partition plate (41) and the second partition plate (42) is fixedly provided with a filter element (43), the filter element (43) is arranged on one side of the air inlet of the filter bin (2), the first partition plate (41) and the second partition plate (42) are used for supporting the filter element (43) and blocking the air not filtered by the filter element (43) from entering the inside of the filter bin (2).

3. The multi-channel premixed biomass gas pulse combustor of claim 2, wherein: The side of the second partition plate (42) away from the first partition plate (41) is provided with a third partition plate (44), the third partition plate (44) is fixedly arranged in the inside of the filter bin (2), the side of the third partition plate (44) away from the second partition plate (42) is fixedly provided with a conveying pipe (45), one end of the conveying pipe (45) is arranged between the second partition plate (42) and the third partition plate (44), the other end of the conveying pipe (45) is fixedly arranged in the inside of the mixing bin (1), the middle of the conveying pipe (45) is provided with a gas suction pump (46), the gas suction pump (46) is fixedly arranged in the inside of the filter bin (2), the gas suction pump (46) is used for sucking the air between the second partition plate (42) and the third partition plate (44) to the inside of the mixing bin (1) through the conveying pipe (45).

4. The multi-channel premixed biomass gas pulse combustor of claim 3, wherein: The upper side of the conveying pipe (45) is provided with a cleaning assembly (47), the cleaning assembly (47) comprises a crossbar (471), the crossbar (471) is rotationally arranged in the interior of the filtering bin (2), one end of the crossbar (471) is rotationally arranged in the interior of the mixing bin (1) and is fixedly connected with the rotating shaft of the motor (33), the other end of the crossbar (471) is fixedly provided with a first bevel gear (472), the first bevel gear (472) is meshingly connected with a second bevel gear (473), and the first bevel gear (472) and the second bevel gear (473) are arranged in the interior of the filtering bin (2).

5. The multi-channel premixed biomass gas pulse combustor of claim 4, wherein: One side of the second bevel gear (473) is fixedly provided with a first connecting rod (474), the first connecting rod (474) is rotationally inserted between the filter core (43) and the third partition plate (44), one end of the first connecting rod (474) away from the second bevel gear (473) is rotationally arranged at the center position on one side of the filter core (43), and a plurality of scrapers (475) are fixedly arranged on the end of the first connecting rod (474) close to the filter core (43), one side of the scraper (475) is attached to the filter core (43), and the scraper (475) is used for cleaning one side of the filter core (43).

6. The multi-channel premixed biomass gas pulse combustor of claim 1, wherein: The drainage assembly (5) comprises a third bevel gear (51), the third bevel gear (51) is fixedly arranged on the rotating shaft of the motor (33), and a fourth bevel gear (52) is symmetrically and meshingly connected to the third bevel gear (51) in up and down directions, and the third bevel gear (51) and the fourth bevel gear (52) are arranged on the side of the stirring net (31) away from the filtering bin (2).

7. The multi-channel premixed biomass gas pulse combustor of claim 6, wherein: One side of the fourth bevel gear (52) is fixedly provided with a second connecting rod (53), the second connecting rod (53) is rotationally arranged in the interior of the mixing bin (1), one end of the second connecting rod (53) away from the fourth bevel gear (52) is fixedly provided with a fifth bevel gear (54), the fifth bevel gear (54) is meshingly connected with a sixth bevel gear (55), one side of the sixth bevel gear (55) is fixedly provided with a drainage plate (56), the drainage plate (56) is rotationally arranged in the interior of the mixing bin (1), and two drainage plates (56) are arranged on the upper side and the lower side of the stirring net (31) respectively.

8. The multi-channel premixed biomass gas pulse combustor of claim 1, wherein: The upper side of the mixing bin (1) is fixedly provided with a combustion bin (6), the interior of the combustion bin (6) is provided with a combustion assembly (7), the combustion assembly (7) comprises a combustion pipe (71), and the two ends of the combustion pipe (71) are fixedly arranged in the interiors of the mixing bin (1) and the combustion bin (6) respectively, and the combustion pipe (71) is used for conveying the mixed gas in the interior of the mixing bin (1) to the interior of the combustion bin (6).

9. The multi-channel premixed biomass gas pulse combustor of claim 8, wherein: The combustion pipe (71) is fixedly provided with a pulse nozzle (72) at one end inside the combustion bin (6), the upper side of the combustion pipe (71) is fixedly provided with an igniter (73), the igniter (73) is arranged inside the combustion bin (6), one end of the igniter (73) is arranged at one side of the pulse nozzle (72), and the igniter (73) is used for igniting mixed gas sprayed from the pulse nozzle (72).

10. The multi-channel premixed biomass gas pulse combustor of claim 9, wherein: The middle of the combustion pipe (71) is fixedly provided with a valve (74), the valve (74) is arranged inside the mixing bin (1), the upper side of the valve (74) is rotatably provided with a handle (75), one end of the handle (75) is rotatably arranged on the upper side of the mixing bin (1), the valve (74) is used for controlling the flow speed of gas inside the combustion pipe (71), and one side of the mixing bin (1) is fixedly provided with an air inlet pipe (8) for inputting gas into the mixing bin (1).

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