A biomass composite burner with adjustable gasification ratio

Abstract

The present invention discloses a biomass composite burner with adjustable gasification ratio, which includes a combustion furnace, a furnace outer shell, a cooling chamber, a low-nitrogen burner, a temperature control thermocouple, a first blower, a second blower, a feeding pipe, a feeding device, a diesel igniter, a control cabinet, a base, a vortex air pump, an automatic slag discharging device, an automatic ash discharger and an ash cleaning and slag removing mechanism. The furnace outer shell is arranged on the base, the lower half of the combustion furnace is arranged inside the furnace outer shell, the cooling chamber is arranged around the outer side of the upper half of the combustion furnace, the lower end of the cooling chamber is arranged at the upper end of the furnace outer shell, a cooling housing is arranged on the periphery of the cooling chamber, the first blower is arranged on one side of the cooling housing and communicated with the cooling housing, the low-nitrogen burner is arranged on one side of the furnace outer shell, one end of the low-nitrogen burner passes through the cooling housing and the cooling chamber and then is communicated with the combustion furnace, a burner air distribution pipe is arranged on the low-nitrogen burner, and one end of the burner air distribution pipe is communicated with the cooling housing.

Description

Technical Field

[0001] The present invention relates to the technical field of biomass composite burners, and specifically refers to a biomass composite burner with adjustable gasification ratio. Background Art

[0002] With the continuous popularization and application of biomass energy, there are many elements that can be utilized in production practice. However, some deficiencies have also emerged. That is, the biomass direct combustion or semi-gasification burners have a simple structure and low cost, but they have a large amount of dust and high emissions of nitrogen-containing gases, showing a certain gap from the environmental protection requirements. The fully gasified furnace is environmentally friendly and has high thermal efficiency, but its cost is high and difficult for users to accept. To overcome the above defects, a composite burner with adjustable gasification ratio is designed. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the above-mentioned technical defects and provide a biomass composite burner with adjustable gasification ratio.

[0004] To solve the above technical problems, the technical solution provided by the present invention is a biomass composite burner with adjustable gasification ratio, which includes a combustion furnace, a furnace shell, a cooling chamber, a low-nitrogen burner, a temperature control thermocouple, a first blower, a second blower, a feeding pipe, a feeding device, a diesel igniter, a control cabinet, a base, a vortex air pump, an automatic slag discharging device, an automatic ash discharging device, and an ash cleaning and slag removing mechanism. The furnace shell is arranged on the base. The lower half of the combustion furnace is arranged inside the furnace shell. The cooling chamber is arranged around the outer side of the upper half of the combustion furnace. The lower end of the cooling chamber is arranged at the upper end of the furnace shell. A cooling housing is arranged on the periphery of the cooling chamber. The first blower is arranged on one side of the cooling housing and is communicated with the cooling housing. The low-nitrogen burner is arranged on one side of the furnace shell. One end of the low-nitrogen burner passes through the cooling housing and the cooling chamber and then is communicated with the combustion furnace. A burner air distribution pipe is arranged on the low-nitrogen burner. One end of the burner air distribution pipe is communicated with the cooling housing. The temperature control thermocouple is arranged at the upper end of the cooling housing, and the lower end of the temperature control thermocouple extends into the combustion furnace. The second blower is arranged on one side of the furnace shell. A plurality of pipes are arranged on the second blower. The other ends of the plurality of pipes are arranged around the furnace shell. The ends of the pipes connected to the furnace shell extend into the furnace shell. Air inlets are arranged on the parts of the pipes extending into the furnace shell. The feeding pipe is arranged at the upper end of the cooling housing, and one end of the feeding pipe extends into the combustion furnace. A bracket is arranged on the base. The feeding device is arranged on the bracket. A seal is arranged at one end of the feeding pipe. One end of the feeding device is connected to the feeding pipe through the seal. The control cabinet is arranged on one side of the bracket on the base. An air gasification grate is arranged at the inner bottom of the combustion furnace. An air pipe is arranged inside the air gasification grate. The lower end of the air pipe extends out of the combustion furnace. A frame is arranged on the base. A vortex air pump is arranged inside the frame. The lower end of the air pipe is communicated with the vortex air pump through a pipe. The automatic slag discharging device is arranged at the lower end of the combustion furnace. The automatic ash discharging device is arranged below the automatic slag discharging device. The ash cleaning and slag removing mechanism is arranged below the automatic ash discharging device. The diesel igniter is arranged on one side of the furnace shell. One end of the diesel igniter passes through the furnace shell and then is communicated with the combustion furnace.

[0005] As an improvement, a first pipe is arranged on the diesel igniter, and the first pipe is connected to the second blower.

[0006] As an improvement, a diesel tank is arranged inside the frame, and the diesel tank is connected to the diesel igniter through an oil pipe.

[0007] As an improvement, the feeding device includes a feeder and a hopper. One end of the feeder is connected to the feeding pipe through a seal, and the lower end of the hopper is connected to the feeder.

[0008] As an improvement, the feeder is a tubular spiral feeder, a conveyor belt, or a tubular high-pressure injector.

[0009] As an improvement, wheels are arranged at the lower end of the base.

[0010] As an improvement, a slag storage device is provided at the lower end of the seal, a second pipe is provided at the upper end of the slag storage device, and one end of the second pipe is connected to the combustion furnace.

[0011] As an improvement, a furnace door is provided on the combustion furnace, and an ash cleaning scraper is provided inside the gasification furnace grate.

[0012] As an improvement, a water inlet is provided at the lower part of the cooling chamber, and a water outlet is provided at the upper end of the cooling chamber.

[0013] The advantages of the present invention compared with the prior art are as follows: This product can adjust the gasification ratio according to the characteristics of the raw materials and usage requirements, reduce the emissions of harmful gases such as nitrogen-containing gases, and multiple pipes are arranged around the furnace shell, which is convenient for adjusting the amount of air distribution to determine the gasification ratio and temperature, so that the ash is softened at high temperature and condensed into small granular shapes, which is convenient for sedimentation and discharge from the automatic ash discharger, better reducing the discharge of fly ash from the furnace mouth, being more environmentally friendly, having high heat energy, and low manufacturing cost. The second blower can circulate and cool the lower part of the combustion furnace, and can send hot air from the lower end of the combustion furnace into the combustion furnace to improve the gasification effect. The feeder can be a tubular spiral feeder, a conveyor belt or a tubular high-pressure injector, which can meet the feeding of various materials. An ash cleaning and slag removing mechanism is provided. When the ash content of the biomass raw material exceeds 5%, it can assist in ash cleaning and slag removing to prevent the combustion furnace from being blocked. Secondly, the hot water in the cooling chamber can be sent to the boiler for use, or the hot air can be discharged through the heat exchanger for heating, which can maximize the heat utilization efficiency. Description of the Drawings

[0014] Figure 1 It is a schematic structural diagram of a biomass composite burner with adjustable gasification ratio of the present invention.

[0015] As shown in the figure: 1. Combustion furnace, 2. Furnace shell, 3. Cooling chamber, 4. Low-nitrogen burner, 5. Temperature control thermocouple, 6. First blower, 7. Second blower, 8. Feeding pipe, 9. Diesel igniter, 10. Control cabinet, 11. Base, 12. Vortex air pump, 13. Automatic slag discharge device, 14. Automatic ash discharger, 15. Ash cleaning and slag removing mechanism, 16. Cooling housing, 17. Burner air distribution pipe, 18. Pipe, 19. Air inlet, 20. Support, 21. Sealer, 22. Gasification furnace grate, 23. Air pipe, 24. Frame body, 25. First pipe, 26. Diesel tank, 27. Feeder, 28. Hopper, 29. Wheel, 30. Slag storage device, 31. Second pipe, 32. Furnace door, 33. Ash cleaning scraper, 34. Water inlet, 35. Water outlet. Detailed Embodiments

[0016] The following further elaborates on a biomass composite burner with adjustable gasification ratio of the present invention in conjunction with the accompanying drawings.

[0017] Combined with the attached Figure 1 , a biomass composite burner with adjustable gasification ratio, comprising a combustion furnace 1, a furnace shell 2, a cooling chamber 3, a low-nitrogen burner 4, a temperature control thermocouple 5, a first blower 6, a second blower 7, a feeding pipe 8, a feeding device, a diesel igniter 9, a control cabinet 10, a base 11, a vortex air pump 12, an automatic slag discharging device 13, an automatic ash discharger 14 and an ash cleaning and slag removing mechanism 15. The furnace shell 2 is arranged on the base 11. The lower half of the combustion furnace 1 is arranged inside the furnace shell 2. The cooling chamber 3 is arranged around the outer side of the upper half of the combustion furnace 1. The lower end of the cooling chamber 3 is arranged at the upper end of the furnace shell 2. The outer periphery of the cooling chamber 3 is provided with a cooling shell 16. The first blower 6 is arranged on one side of the cooling shell 16 and communicated with the cooling shell 16. The low-nitrogen burner 4 is arranged on one side of the furnace shell 2. One end of the low-nitrogen burner 4 passes through the cooling shell 16 and the cooling chamber 3 and then is communicated with the combustion furnace 1. The low-nitrogen burner 4 is provided with a burner air distribution pipe 17. One end of the burner air distribution pipe 17 is communicated with the cooling shell 16. The temperature control thermocouple 5 is arranged at the upper end of the cooling shell 16 and the lower end of the temperature control thermocouple 5 extends into the combustion furnace 1. The second blower 7 is arranged on one side of the furnace shell 2. The second blower 7 is provided with a plurality of pipes 18. The other ends of the plurality of pipes 18 are arranged around the furnace shell 2. One end of the pipe 18 connected to the furnace shell 2 extends into the furnace shell 2. An air inlet 19 is arranged on the part of the pipe 18 extending into the furnace shell 2. The feeding pipe 8 is arranged at the upper end of the cooling shell 16 and one end of the feeding pipe 8 extends into the combustion furnace 1. A bracket 20 is arranged on the base 11. The feeding device is arranged on the bracket 20. One end of the feeding pipe 8 is provided with a seal 21. One end of the feeding device is connected to the feeding pipe 8 through the seal 21. The control cabinet 10 is arranged on one side of the bracket 20 on the base 11. An air gasification grate 22 is arranged at the inner bottom of the combustion furnace 1. An air pipe 23 is arranged inside the air gasification grate 22. The lower end of the air pipe 23 extends out of the combustion furnace 1. A frame 24 is arranged on the base 11. A vortex air pump 12 is arranged inside the frame 24. The lower end of the air pipe 23 is communicated with the vortex air pump 12 through a pipe. The automatic slag discharging device 13 is arranged at the lower end of the combustion furnace 1. The automatic ash discharger 14 is arranged below the automatic slag discharging device 13. The ash cleaning and slag removing mechanism 15 is arranged below the automatic ash discharger 14. The diesel igniter 9 is arranged on one side of the furnace shell 2. One end of the diesel igniter 9 passes through the furnace shell 2 and then is communicated with the combustion furnace 1.

[0018] The diesel igniter 9 is provided with a first pipe 25, and the first pipe 25 is connected to the second blower 7.

[0019] A diesel fuel tank 26 is arranged inside the frame 24, and the diesel fuel tank 26 is connected to the diesel igniter 9 through an oil pipe.

[0020] The feeding device includes a feeder 27 and a hopper 28. One end of the feeder 27 is connected to the feeding pipe 8 through a seal 21, and the lower end of the hopper 28 is connected to the feeder 27.

[0021] The feeder 27 is a tubular spiral feeder, a conveyor belt or a tubular high-pressure injector.

[0022] The lower end of the base 11 is provided with wheels 29.

[0023] A slag storage device 30 is provided at the lower end of the seal 21. A second pipe 31 is provided at the upper end of the slag storage device 30. One end of the second pipe 31 is connected to the combustion furnace 1.

[0024] A furnace door 32 is provided on the combustion furnace 1, and a dust cleaning scraper 33 is provided inside the gasification furnace grate 22.

[0025] A water inlet 34 is provided at the lower part of the cooling chamber 3, and a water outlet 35 is provided at the upper end of the cooling chamber 3.

[0026] When the present invention is specifically implemented, materials can be poured into the hopper 28, and then transported to the feeding pipe 8 through the feeder 27 and then reach the combustion furnace 1 for combustion. This product can adjust the gasification ratio according to the characteristics of the raw materials and usage requirements by using the control cabinet 10, reducing the emission of harmful gases such as nitrogen-containing gases. A plurality of pipes 18 are arranged around the furnace shell 2, facilitating the adjustment of the air distribution volume to determine the gasification ratio and temperature, making the ash soften at high temperature and condense into fine granular shapes, facilitating sedimentation and discharging from the automatic ash discharger 14, better reducing the discharge of fly ash from the furnace mouth, being more environmentally friendly, having high heat energy and low manufacturing cost. The second blower 7 can circulate and cool the lower part of the combustion furnace 1, and can send air from the lower end of the combustion furnace 1 into the combustion furnace 1 to improve the gasification effect. The feeding pipe 8 is a tubular spiral feeder, a conveyor belt or a tubular high-pressure injector, which can meet the feeding of various materials. A dust cleaning and slag removing mechanism 15 is provided. When the ash content of the material raw material exceeds 5%, it can assist in dust cleaning and slag removing to prevent the combustion furnace 1 from being blocked.

[0027] The above describes the present invention and its implementation manners. Such description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and, without departing from the purpose of the present invention creation, design similar structural manners and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present invention.

Claims

1. A biomass composite burner with adjustable gasification ratio, characterized in that: It includes a combustion furnace (1), a furnace outer shell (2), a cooling chamber (3), a low-nitrogen burner (4), a temperature control thermocouple (5), a first blower (6), a second blower (7), a feeding pipe (8), a feeding device, a diesel igniter (9), a control cabinet (10), a base (11), a vortex air pump (12), an automatic slag discharging device (13), an automatic ash discharger (14) and an ash cleaning and slag removing mechanism (15). The furnace outer shell (2) is arranged on the base (11). The lower half of the combustion furnace (1) is arranged inside the furnace outer shell (2). The cooling chamber (3) is arranged around the outer side of the upper half of the combustion furnace (1). The lower end of the cooling chamber (3) is arranged at the upper end of the furnace outer shell (2). The outer periphery of the cooling chamber (3) is provided with a cooling housing (16). The first blower (6) is arranged on one side of the cooling housing (16) and is communicated with the cooling housing (16). The low-nitrogen burner (4) is arranged on one side of the furnace outer shell (2). One end of the low-nitrogen burner (4) passes through the cooling housing (16) and the cooling chamber (3) and then is communicated with the combustion furnace (1). The low-nitrogen burner (4) is provided with a burner air distribution pipe (17). One end of the burner air distribution pipe (17) is communicated with the cooling housing (16). The temperature control thermocouple (5) is arranged at the upper end of the cooling housing (16) and the lower end of the temperature control thermocouple (5) extends into the combustion furnace (1). The second blower (7) is arranged on one side of the furnace outer shell (2). The second blower (7) is provided with a plurality of pipes (18). The other ends of the plurality of pipes (18) are arranged around the furnace outer shell (2). One end of the pipe (18) connected to the furnace outer shell (2) extends into the furnace outer shell (2). An air inlet (19) is arranged on the part of the pipe (18) extending into the furnace outer shell (2). The feeding pipe (8) is arranged at the upper end of the cooling housing (16) and one end of the feeding pipe (8) extends into the combustion furnace (1). A bracket (20) is arranged on the base (11). The feeding device is arranged on the bracket (20). One end of the feeding pipe (8) is provided with a seal (21). One end of the feeding device and the feeding pipe (8) are connected through the seal (21). The control cabinet (10) is arranged on one side of the bracket (20) on the base (11). An air gasifier grate (22) is arranged at the inner bottom of the combustion furnace (1). An air pipe (23) is arranged inside the air gasifier grate (22). The lower end of the air pipe (23) extends out of the combustion furnace (1). A frame body (24) is arranged on the base (11). A vortex air pump (12) is arranged inside the frame body (24). The lower end of the air pipe (23) is communicated with the vortex air pump (12) through a pipe. The automatic slag discharging device (13) is arranged at the lower end of the combustion furnace (1). The automatic ash discharger (14) is arranged below the automatic slag discharging device (13). The ash cleaning and slag removing mechanism (15) is arranged below the automatic ash discharger (14). The diesel igniter (9) is arranged on one side of the furnace outer shell (2). One end of the diesel igniter (9) passes through the furnace outer shell (2) and then is communicated with the combustion furnace (1); The lower part of the cooling chamber (3) is provided with a water inlet (34), and the upper end of the cooling chamber (3) is provided with a water outlet (35); The combustion furnace (1) is provided with a furnace door (32), and a dust cleaning scraper (33) is arranged inside the gasification grate (22); The lower end of the seal (21) is provided with a slag storage device (30), the upper end of the slag storage device (30) is provided with a second pipe (31), and one end of the second pipe (31) is connected to the combustion furnace (1); The feeding device includes a feeder (27) and a hopper (28). One end of the feeder (27) is connected to the feeding pipe (8) through the seal (21), and the lower end of the hopper (28) is connected to the feeder (27); The feeder (27) is a tubular spiral feeder, a conveyor belt or a tubular high-pressure injector.

2. The biomass composite burner with adjustable gasification ratio according to claim 1, wherein: The diesel igniter (9) is provided with a first pipe (25), and the first pipe (25) is connected to the second blower (7).

3. An adjustable gasification ratio biomass composite burner according to claim 1, characterized in that: A diesel tank (26) is arranged inside the frame (24), and the diesel tank (26) is connected to the diesel igniter (9) through an oil pipe.

4. An adjustable gasification ratio biomass composite burner according to claim 1, characterized in that: The lower end of the base (11) is provided with wheels (29).

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