Multi-energy coupling combustor

Abstract

The invention belongs to the technical field of combustors, and particularly relates to a multi-energy coupling combustor, in the multi-energy coupling combustor, biomass fuel is firstly put into a first cutting mechanism, falls into a conveying mechanism after being primarily cut and is conveyed to a combustion cabin through the conveying mechanism, in the process, the biomass fuel is secondarily cut through a second cutting mechanism, and then the biomass fuel is conveyed to a combustion cabin through a combustion cabin; meanwhile, combustible gas is introduced into the combustion cabin through a third pipe body, high-pressure air is introduced into the combustion cabin through a second pipe body, the high-pressure air blows away granular biomass fuel entering the combustion cabin and raises the granular biomass fuel at the same time, and when biomass fuel particles fall down, the biomass fuel particles and the combustible gas entering the combustion cabin from bottom to top are mixed and combusted together; generated waste is discharged through a waste discharging mechanism under the action of high-pressure air, so that coupling combustion of combustible gas and biomass is realized, and the problems of high natural gas cost and unstable biomass fuel supply in the prior art are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of burners, and in particular relates to a multi-energy coupling burner. Background Art

[0002] Traditional coal-fired furnaces emit large amounts of sulfur dioxide, nitrogen oxides, particulate matter and heavy metal pollutants during high-temperature combustion, which not only pollute the environment, but also threaten the ecology and human health through bioaccumulation. Therefore, many places are gradually reducing the use of coal.

[0003] As a clean, low-carbon energy source, natural gas can reduce pollution, but its combustion calorific value is low. Oxygen-enriched combustion or catalytic additives are needed to increase the combustion temperature to meet the high-temperature requirements of metal smelting, ceramic firing, etc. In addition, its gas usage cost is high and its economic efficiency is insufficient.

[0004] In contrast, solid biomass fuels (such as wood scraps, bagasse, and straw) offer advantages such as high calorific value, low pollution, and no sulfur and phosphorus corrosion. They produce minimal ash after combustion and can be recycled as high-quality potash fertilizer, while also reducing fuel costs and labor maintenance. However, biomass fuels are susceptible to seasonal fluctuations and have unstable supply, making them difficult to use as a single fuel for long periods of time.

[0005] Therefore, a multi-energy coupling burner is proposed. Summary of the Invention

[0006] The purpose of the present invention is to provide a multi-energy coupling burner to solve the above problems.

[0007] To achieve the above object, the present invention provides the following solutions:

[0008] A multi-energy coupling burner comprises: a combustion chamber, a first cutting mechanism provided on one side of the combustion chamber, the first cutting mechanism being connected to a conveying mechanism, the conveying mechanism being connected to the combustion chamber, a second cutting mechanism provided at the rear end of the conveying mechanism, and a waste discharge mechanism provided on a side of the combustion chamber away from the first cutting mechanism;

[0009] The combustion chamber is connected to a second tube body and a third tube body on one side close to the first cutting mechanism. The second tube body is located below the conveying mechanism, and the third tube body is located below the second tube body. The second tube body is used to introduce high-pressure air into the combustion chamber, and the third tube body is used to introduce combustible gas into the combustion chamber.

[0010] In a multi-energy coupling combustor of the present application, a uniform gas plate is fixedly connected to the inner side wall of the combustion cabin in a circumferential direction, the uniform gas plate is located at the lower part of the combustion cabin, a cavity is formed in the uniform gas plate, the cavity is communicated with the third pipe body, a plurality of vertically arranged first connecting pipes and a plurality of vertically arranged second connecting pipes are fixedly connected to the top surface of the uniform gas plate, the plurality of first connecting pipes and the plurality of second connecting pipes are arrayed, the first connecting pipes and the second connecting pipes are communicated with the cavity, the top end of the first connecting pipe is fixedly connected with a first funnel, the top end of the second connecting pipe is fixedly connected with a second funnel, the first funnel is located below the second funnel, the first funnel is located between adjacent four second funnels, and the first funnel has the same size as the second funnel.

[0011] The gap between the second funnel and the inner side wall of the combustion cabin is filled by a plate body, and the plate body is arranged downwardly inclined away from the inner side wall of the combustion cabin.

[0012] In a multi-energy coupling combustor of the present application, a one-way valve is arranged in the third pipe body, a fifth pipe body is fixedly connected to the side of the uniform gas plate away from the third pipe body, the fifth pipe body is communicated with the cavity, and a solenoid valve is arranged on the fifth pipe body.

[0013] In a multi-energy coupling combustor of the present application, the first cutting mechanism comprises a barrel, the barrel is arranged in a vertical cylindrical shape, a hopper is fixedly connected and communicated with the top end of the barrel, a main shaft is coaxially rotationally connected in the barrel, a plurality of first blades are circumferentially and equidistantly fixedly connected to the outer side wall of the main shaft, the blade side of the first blade is in sliding contact with the blade side of a second blade, a plurality of second blades are circumferentially and equidistantly fixedly connected to the inner side wall of the barrel, the top end of the main shaft penetrates through the barrel and is coaxially fixedly connected with a second bevel gear, the second bevel gear is engaged with a first bevel gear, the first bevel gear is coaxially fixedly connected to the output shaft of a cutting motor, the cutting motor is fixedly connected to the top end of the barrel, and the bottom end of the barrel is communicated with the conveying mechanism.

[0014] In a multi-energy coupling combustor of the present application, at least two supporting rods are fixedly connected to the inner side wall of the barrel, a plurality of supporting rods are circumferentially and equidistantly arranged, a circular ring is fixedly connected between a plurality of supporting rods, the outer ring of a bearing is coaxially fixedly connected in the circular ring, the inner ring of the bearing is fixed to the outer side wall of the main shaft, the top surface and the bottom surface of the circular ring are coaxially fixedly connected with an external thread ring, the external thread ring is threadedly connected with a protective shell, the main shaft penetrates through the protective shell and is in sliding contact with the protective shell.

[0015] In the multi-energy coupling combustor, the conveying mechanism comprises a first pipe body fixed to the bottom end of the barrel body, the first pipe body is in communication with the barrel body, one end of the first pipe body is in communication with the combustion cabin, the other end of the first pipe body is fixedly connected with a conveying motor, a screw conveyor assembly is coaxially and rotationally connected in the first pipe body, the outer edge of the screw conveyor assembly is in sliding contact with the inner side wall of the first pipe body, and the rotating shaft of the screw conveyor assembly is coaxially and fixedly connected with the conveying motor.

[0016] In the multi-energy coupling combustor, the second cutting mechanism comprises a plurality of third blades fixed to the rotating shaft of the screw conveyor assembly, the third blades are circumferentially and equally spaced, the third blades are in sliding contact with a perforated plate, the perforated plate is fixed to the inner side wall of the first pipe body, a plurality of through holes are formed in the perforated plate, the axis of the through holes is parallel to the axis of the first pipe body, and the perforated plate is located at the end of the first pipe body extending into the combustion cabin.

[0017] In the multi-energy coupling combustor, the exhaust mechanism comprises a fourth pipe body fixed to the outer side wall of the combustion cabin, the fourth pipe body is located at the side of the combustion cabin away from the first pipe body, and the fourth pipe body is provided with a butterfly valve.

[0018] In the multi-energy coupling combustor, the combustion cabin comprises a high-temperature-resistant layer, an outer side of the high-temperature-resistant layer is provided with a protective layer, a gap is formed between the high-temperature-resistant layer and the protective layer, and the gap is filled with a temperature-insulating layer.

[0019] In the multi-energy coupling combustor, the bottom end of the barrel body is fixedly connected with at least three first legs, the first legs are circumferentially and equally spaced, and the first legs are vertically arranged.

[0020] Compared with the prior art, the multi-energy coupling combustor has the following advantages and technical effects:

[0021] In the multi-energy coupling combustor, the biomass fuel is first put into the first cutting mechanism, is preliminarily cut and then falls into the conveying mechanism, is conveyed to the combustion cabin by the conveying mechanism, is secondarily cut by the second cutting mechanism in the process, combustible gas is introduced into the combustion cabin through the third pipe body at the same time, high-pressure air is introduced into the combustion cabin through the second pipe body, the high-pressure air blows and lifts the granular biomass fuel entering the combustion cabin, the biomass fuel particles are mixed with the combustible gas entering the combustion cabin from bottom to top and are combusted together when falling down, the generated waste is discharged through the exhaust mechanism under the action of the high-pressure air, the combustible gas and the biomass are coupled and combusted, and the problems of high cost of natural gas and unstable supply of biomass fuel in the prior art are solved. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings described below only illustrate some of the embodiments of the present application, and all other drawings obtained by those of ordinary skill in the art without creative effort based on these drawings also belong to the protection scope of the present application.

[0023] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0024] Figure 2 It is a schematic diagram of the overall structure of the present application. Figure 1 It is a partial enlarged view of A in the present application.

[0025] Figure 3 It is a partial enlarged view of B in the present application. Figure 1 It is a partial enlarged view of B in the present application.

[0026] Figure 4 It is a plan view of the second funnel in the present application.

[0027] 1, barrel; 2, hopper; 3, cutting motor; 4, shield; 5, first bevel gear; 6, second bevel gear; 7, first blade; 8, support rod; 9, second blade; 10, main shaft; 11, conveying motor; 12, first pipe body; 13, auger conveying assembly; 14, second pipe body; 15, third pipe body; 16, first leg; 17, circular ring; 18, bearing; 19, outer threaded ring; 20, protective shell; 21, protective layer; 22, temperature insulation layer; 23, high-temperature-resistant layer; 24, fourth pipe body; 25, butterfly valve; 26, fifth pipe body; 27, electromagnetic valve; 28, check valve; 29, second leg; 30, air equalizing plate; 31, cavity; 32, first connecting pipe; 33, first funnel; 34, second funnel; 35, second connecting pipe; 36, plate body; 37, perforated plate; 38, third blade. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, and all other embodiments obtained by those of ordinary skill in the art without creative effort based on these embodiments also belong to the protection scope of the present application.

[0029] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0030] Reference Figures 1 to 4The application discloses a multi-energy coupling combustor which comprises a combustion cabin, a first cutting mechanism arranged on one side of the combustion cabin, a conveying mechanism communicated with the first cutting mechanism, a second cutting mechanism arranged at the tail end of the conveying mechanism, and a waste discharge mechanism arranged on the side of the combustion cabin away from the first cutting mechanism.

[0031] The side of the combustion cabin close to the first cutting mechanism is respectively communicated with a second pipe body 14 and a third pipe body 15.

[0032] In the application, the biomass fuel is first put into the first cutting mechanism, and after being preliminarily cut, falls into the conveying mechanism and is sent to the combustion cabin.

[0033] In an alternative scheme, a gas equalizing plate 30 is fixedly connected to the inner side wall of the combustion cabin in a circumferential direction, the gas equalizing plate 30 is located at the lower part of the combustion cabin, a cavity 31 is formed in the gas equalizing plate 30, the cavity 31 is communicated with the third pipe body 15, a plurality of vertically arranged first connecting pipes 32 and a plurality of vertically arranged second connecting pipes 35 are fixedly connected to the top surface of the gas equalizing plate 30, the plurality of first connecting pipes 32 and the plurality of second connecting pipes 35 are arrayed, the first connecting pipes 32 and the second connecting pipes 35 are communicated with the cavity 31, a first funnel 33 is fixedly connected to the top end of each first connecting pipe 32, a second funnel 34 is fixedly connected to the top end of each second connecting pipe 35, the first funnel 33 is located below the second funnel 34, the first funnel 33 is located between adjacent four second funnels 34, and the first funnel 33 and the second funnel 34 are of the same size.

[0034] The gap between the second funnel 34 and the inner side wall of the combustion cabin is filled by a plate body 36 which is arranged in a downward inclined manner away from the inner side wall of the combustion cabin.

[0035] The combustible gas is selected from natural gas, the natural gas is introduced into the cavity 31 of the gas equalizing plate 30 in the combustion cabin through the third pipe body 15, and then is discharged through the plurality of first connecting pipes 32 and the plurality of second connecting pipes 35, so that the uniformity of natural gas spraying is increased, the contact area of the natural gas and the biomass fuel particles is ensured, and the combustion effect is enhanced.

[0036] Meanwhile, the top end of the first connecting pipe 32 is fixedly connected with a first funnel 33, and the top end of the second connecting pipe 35 is fixedly connected with a second funnel 34. The first funnel 33 is located below the second funnel 34, and the first funnel 33 is located between adjacent four second funnels 34. The first funnel 33 and the second funnel 34 are of the same size, and adjacent two first funnels 33 and adjacent two second funnels 34 are in contact. When the unburned or uncombusted biomass particles fall, they fall into the first funnel 33 or the second funnel 34, and the part of the biomass particles is blown up by the natural gas to participate in the combustion again.

[0037] In an alternative scheme, the third pipe body 15 is provided with a one-way valve 28, the side away from the third pipe body 15 of the air equalizing plate 30 is fixedly connected with a fifth pipe body 26, the fifth pipe body 26 is in communication with the cavity 31, and the fifth pipe body 26 is provided with an electromagnetic valve 27.

[0038] After the combustion is completed, part of the ash will inevitably fall on the first funnel 33 and the second funnel 34. At this time, the waste discharge mechanism is closed, the electromagnetic valve 27 is opened, and high-pressure air is continuously introduced into the combustion cabin. The high-pressure air enters the cavity 31 through the first funnel 33 and the second funnel 34, and then is discharged through the fifth pipe body 26 to take out the ash, thereby avoiding manual cleaning.

[0039] In an alternative scheme, the first cutting mechanism includes a barrel body 1, which is arranged in a vertical cylindrical shape. The top end of the barrel body 1 is fixedly connected and communicated with a hopper 2. A main shaft 10 is coaxially and rotationally connected in the barrel body 1. A plurality of first blades 7 are fixedly connected on the outer side wall of the main shaft 10 at equal intervals in the circumferential direction. The cutting edge side of the first blade 7 slidably contacts the cutting edge side of a second blade 9. A plurality of second blades 9 are fixedly connected on the inner side wall of the barrel body 1 at equal intervals in the circumferential direction. The top end of the main shaft 10 penetrates out of the barrel body 1 and is coaxially fixedly connected with a second bevel gear 6. The second bevel gear 6 is engaged with a first bevel gear 5, which is coaxially fixedly connected to the output shaft of a cutting motor 3. The cutting motor 3 is fixedly connected to the top end of the barrel body 1. The bottom end of the barrel body 1 is in communication with a conveying mechanism.

[0040] The outer side of the first bevel gear 5 and the second bevel gear 6 is covered with a protective cover 4, which is fixedly connected to the top end of the barrel body 1. The protective cover 4 is used to prevent impurities from falling on the first bevel gear 5 or the second bevel gear 6, which affects the use of the device. At the same time, it avoids the staff from accidentally touching the first bevel gear 5 or the second bevel gear 6, causing personal injury.

[0041] The cutting motor 3 is started, and the main shaft 10 is driven to rotate through the first bevel gear 5 and the second bevel gear 6 engaged with each other. The first blade 7 is rotated by the main shaft 10, and the first blade 7 and the second blade 9 are constantly contacted and separated to form a shearing force on the biomass fuel particles, which cuts the biomass fuel into particles.

[0042] In an alternative, a sealing cover is detachably connected to the top opening of the hopper 2.

[0043] In an alternative, two cutting assemblies are arranged on the outer wall of the main shaft 10, and the upper cutting assembly includes at least three first blades 7 and at least three second blades 9, and the lower cutting assembly includes at least six first blades 7 and at least six second blades 9. In this way, the biomass fuel particles are cut twice in the barrel 1, thereby improving the cutting efficiency and reducing the particle size of the biomass fuel particles.

[0044] In an alternative, at least two supporting rods 8 are fixed to the inner wall of the barrel 1, and the supporting rods 8 are arranged at equal intervals in the circumferential direction. A circular ring 17 is fixed between the supporting rods 8. The outer ring of a bearing 18 is coaxially fixed in the circular ring 17. The inner ring of the bearing 18 is fixed to the outer wall of the main shaft 10. The top surface and the bottom surface of the circular ring 17 are coaxially fixed with an outer threaded ring 19. The outer threaded ring 19 is threadedly connected with a protective shell 20. The main shaft 10 penetrates the protective shell 20 and is in sliding contact with the protective shell 20.

[0045] In an alternative, at least two circular rings 17 are arranged near the two ends of the main shaft 10, thereby ensuring the stability of the rotation of the main shaft 10.

[0046] The protective shell 20 is arranged to prevent impurities from entering the bearing 18 and affecting the service life of the bearing 18.

[0047] In an alternative, the conveying mechanism includes a first pipe body 12 fixed to the bottom end of the barrel 1. The first pipe body 12 is in communication with the barrel 1. One end of the first pipe body 12 is in communication with the combustion cabin. The other end of the first pipe body 12 is fixed with a conveying motor 11. A screw conveyor assembly 13 is coaxially and rotationally connected in the first pipe body 12. The outer edge of the screw conveyor assembly 13 is in sliding contact with the inner wall of the first pipe body 12. The rotating shaft of the screw conveyor assembly 13 is coaxially fixed with the conveying motor 11.

[0048] The conveying motor 11 drives the screw conveyor assembly 13 to rotate, and the granular biomass fuel is sent into the combustion cabin.

[0049] In an alternative, the second cutting mechanism includes a plurality of third blades 38 fixed to the rotating shaft of the screw conveyor assembly 13. The third blades 38 are arranged at equal intervals in the circumferential direction. The third blades 38 are in sliding contact with a perforated plate 37. The perforated plate 37 is fixed to the inner wall of the first pipe body 12. A plurality of through holes are formed in the perforated plate 37. The axis of the through holes is parallel to the axis of the first pipe body 12. The perforated plate 37 is located at the end of the first pipe body 12 extending into the combustion cabin.

[0050] The conveying motor 11 drives the auger conveying assembly 13 to rotate, and the auger conveying assembly 13 drives the third blade 38 to rotate, so as to cut the biomass fuel into particles of required size when the biomass fuel is extruded into the through hole.

[0051] The diameter and length of the biomass fuel particles are related to the number and rotating speed of the third blade 38 and the thickness of the perforated plate 37.

[0052] In an alternative solution, the waste discharge mechanism comprises a fourth pipe body 24 fixed to the outer sidewall of the combustion cabin, and the fourth pipe body 24 is located at a side of the combustion cabin away from the first pipe body 12, and a butterfly valve 25 is arranged in the fourth pipe body 24.

[0053] The waste (flue gas, ash, etc.) after combustion is discharged through the fourth pipe body 24, and the butterfly valve 25 is used to close or open the fourth pipe body 24 and control the discharge amount of the fourth pipe body 24;

[0054] The butterfly valve 25 is an electrically controlled butterfly valve, which is a prior art and is not limited in specific type and specification.

[0055] In an alternative solution, the combustion cabin comprises a high-temperature-resistant layer 23, and the outer side of the high-temperature-resistant layer 23 is provided with a protective layer 21, and a gap is arranged between the protective layer 21 and the high-temperature-resistant layer 23, and the gap is filled with a temperature insulation layer 22.

[0056] In an alternative solution, the bottom end of the barrel body 1 is fixed with at least three first legs 16, and the plurality of first legs 16 are circumferentially and equally spaced, and the first legs 16 are vertically arranged.

[0057] The bottom end of the combustion cabin is fixed with a plurality of second legs 29, and the plurality of second legs 29 are circumferentially and equally spaced.

[0058] The first legs 16 are used to support the barrel body 1, so as to avoid the weight of the barrel body 1 being all pressed on the outer sidewall of the combustion cabin, thereby causing damage to the connection; and the second legs 29 are used to make the combustion cabin away from the ground, so as to avoid corrosion of the protective layer 21 of the combustion cabin.

[0059] In the description of the present application, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0060] The embodiments described above are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by persons skilled in the art should fall within the scope of protection defined by the claims of the present invention.

Claims

1. A multi-energy coupling burner, characterized in that: include: A combustion chamber, wherein a first cutting mechanism is provided on one side of the combustion chamber, the first cutting mechanism is connected to a conveying mechanism, the conveying mechanism is connected to the combustion chamber, a second cutting mechanism is provided at the tail end of the conveying mechanism, and a waste discharge mechanism is provided on the side of the combustion chamber away from the first cutting mechanism; The combustion chamber is connected to a second tube body (14) and a third tube body (15) on one side thereof close to the first cutting mechanism. The second tube body (14) is located below the conveying mechanism, and the third tube body (15) is located below the second tube body (14). The second tube body (14) is used to introduce high-pressure air into the combustion chamber, and the third tube body (15) is used to introduce combustible gas into the combustion chamber.

2. The multi-energy coupling burner according to claim 1, characterized in that: An air distribution plate (30) is fixedly connected to the inner wall of the combustion chamber in the circumferential direction. The air distribution plate (30) is located at the lower part of the combustion chamber. A cavity (31) is opened in the air distribution plate (30). The cavity (31) is communicated with the third tube body (15). A plurality of vertically arranged first connecting tubes (32) and a plurality of vertically arranged second connecting tubes (35) are fixedly connected to the top surface of the air distribution plate (30). The plurality of first connecting tubes (32) and the plurality of second connecting tubes (35) are distributed in an array. The first connecting tube (32) and the second connecting tube (35) are both connected to the cavity (31); a first funnel (33) is fixedly connected to the top end of the first connecting tube (32); a second funnel (34) is fixedly connected to the top end of the second connecting tube (35); the first funnel (33) is located below the second funnel (34); the first funnel (33) is located between four adjacent second funnels (34); and the first funnel (33) and the second funnel (34) are of the same size; The gap between the second funnel (34) and the inner side wall of the combustion chamber is filled by a plate (36), and the plate (36) is arranged to be tilted downward in a direction away from the inner side wall of the combustion chamber.

3. The multi-energy coupling burner according to claim 2, characterized in that: A one-way valve (28) is provided in the third tube body (15); a fifth tube body (26) is fixedly connected to the side of the gas equalizing plate (30) away from the third tube body (15); the fifth tube body (26) is communicated with the cavity (31); and a solenoid valve (27) is provided on the fifth tube body (26).

4. The multi-energy coupling burner according to claim 1, characterized in that: The first cutting mechanism comprises a barrel body (1), which is arranged in a vertical cylindrical shape. The top end of the barrel body (1) is fixedly connected to and communicated with a hopper (2). A main shaft (10) is coaxially connected to the barrel body (1). A plurality of first blades (7) are fixedly connected to the outer wall of the main shaft (10) at equal intervals in the circumferential direction. The cutting edge side of the first blade (7) is in sliding contact with the cutting edge side of the second blade (9). A plurality of second blades (9) are fixedly connected to the inner wall of the barrel body (1) at equal intervals in the circumferential direction. The top end of the main shaft (10) passes through the barrel body (1) and is coaxially fixedly connected to a second bevel gear (6). The second bevel gear (6) is engaged with a first bevel gear (5). The first bevel gear (5) is coaxially fixed to the output shaft of the cutting motor (3). The cutting motor (3) is fixed to the top end of the barrel body (1). The bottom end of the barrel body (1) is communicated with the conveying mechanism.

5. The multi-energy coupling burner according to claim 4, characterized in that: At least two support rods (8) are fixedly connected to the inner side wall of the barrel body (1), and the plurality of support rods (8) are arranged at equal intervals in the circumferential direction. A circular ring (17) is fixedly connected between the plurality of support rods (8), and the outer ring of a bearing (18) is coaxially fixedly connected inside the circular ring (17). The inner ring of the bearing (18) is fixed on the outer side wall of the main shaft (10). The top surface and the bottom surface of the circular ring (17) are coaxially fixedly connected to an external threaded ring (19), and the external threaded ring (19) is threadedly connected to a protective shell (20). The main shaft (10) passes through the protective shell (20) and is in sliding contact with the protective shell (20).

6. The multi-energy coupling burner according to claim 4, characterized in that: The conveying mechanism comprises a first tube body (12) fixedly connected to the bottom end of the barrel body (1), the first tube body (12) being in communication with the barrel body (1), one end of the first tube body (12) being in communication with the combustion chamber, the other end of the first tube body (12) being fixedly connected to a conveying motor (11), a screw conveying assembly (13) being coaxially rotatably connected inside the first tube body (12), the outer edge of the screw conveying assembly (13) being in sliding contact with the inner side wall of the first tube body (12), and the rotating shaft of the screw conveying assembly (13) being coaxially fixedly connected to the conveying motor (11).

7. The multi-energy coupling burner according to claim 6, characterized in that: The second cutting mechanism includes a plurality of third blades (38) fixed to the rotating shaft of the auger conveying assembly (13), the plurality of third blades (38) are arranged at equal intervals in the circumferential direction, the third blades (38) are in sliding contact with a porous plate (37), the porous plate (37) is fixed to the inner side wall of the first tube (12), a plurality of through holes are opened on the porous plate (37), the axes of the through holes are parallel to the axis of the first tube (12), and the porous plate (37) is located at one end of the first tube (12) extending into the combustion chamber.

8. The multi-energy coupling burner according to claim 6, characterized in that: The waste discharge mechanism comprises a fourth pipe body (24) fixedly connected to the outer wall of the combustion chamber. The fourth pipe body (24) is located on a side of the combustion chamber away from the first pipe body (12). A butterfly valve (25) is provided in the fourth pipe body (24).

9. The multi-energy coupling burner according to claim 1, characterized in that: The combustion chamber comprises a high-temperature resistant layer (23), a protective layer (21) is provided on the outside of the high-temperature resistant layer (23), a gap is provided between the protective layer (21) and the high-temperature resistant layer (23), and the gap is filled with a thermal insulation layer (22).

10. The multi-energy coupling burner according to claim 4, characterized in that: At least three first legs (16) are fixedly connected to the bottom end of the barrel body (1), and the plurality of first legs (16) are arranged at equal intervals in the circumferential direction, and the first legs (16) are arranged vertically.

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