Biomass burner

Abstract

The utility model relates to the field of boilers, and discloses a biomass burner which comprises a bottom plate, a boiler is fixed on the left side of the top of the bottom plate, a grate is erected on the lower middle portion of the inner side of the boiler, a water pipe is arranged above the grate, and the water pipe is in a snake-shaped pipe shape and is tightly attached to the inner wall of the left side of the boiler. The bottom of the front end of the water pipe fixedly communicates with a water inlet pipe, the water inlet pipe penetrates through the front side of the outer wall of the boiler, the top of the rear end of the water pipe fixedly communicates with a water outlet pipe, the water outlet pipe penetrates through the rear side of the outer wall of the boiler, and the water outlet pipe and the water inlet pipe are both provided with valves. Sufficient air is provided through the fan, sufficient combustion of fuel is ensured, the combustion efficiency is improved, the water pipe is in the shape of the snake-shaped pipe, the contact area of water and heat is increased, the heat exchange efficiency is improved, the conveying mechanism is driven through the motor, automatic conveying of the fuel and automatic control of the combustion process are achieved, and the manual operation cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of boilers, in particular to a biomass burner. Background Art

[0002] Biomass energy is one of the widely available renewable energy sources on Earth. It produces relatively few greenhouse gases such as carbon dioxide when burned, and the ashes after burning can be used as fertilizer.

[0003] Currently, when using biomass fuel, it needs to be manually put into the boiler in batches, which is time-consuming, labor-intensive and inefficient. Utility Model Content

[0004] In order to overcome the above-mentioned deficiencies, the utility model provides a biomass burner.

[0005] The technical solution adopted by this utility model:

[0006] A biomass burner includes a bottom plate, a boiler is fixed on the top left side of the bottom plate, a grate is mounted on the lower middle part of the inner side of the boiler, a water pipe is arranged above the grate, the water pipe is serpentine and close to the left inner wall of the boiler, the front end bottom of the water pipe is fixedly connected with a water inlet pipe, the water inlet pipe passes through the front side of the outer wall of the boiler, the rear end top of the water pipe is fixedly connected with a water outlet pipe, the water outlet pipe passes through the rear side of the outer wall of the boiler, valves are installed on both the water outlet pipe and the water inlet pipe, the top of the left outer wall of the boiler is fixedly connected with a smoke outlet pipe, the right outer wall of the boiler is fixedly connected with a smoke outlet pipe. An air inlet pipe is fixedly connected to the bottom, a fan is fixedly installed at the right end of the air inlet pipe, and the air outlet of the fan is connected to the right end of the air inlet pipe. An ash discharge port is provided at the bottom of the left outer wall of the boiler, and a plug-in plate is inserted into the outer wall of the ash discharge port. A fuel bin is provided on the right side of the boiler, and legs are fixedly connected to the four corners of the outer wall of the fuel bin, and the bottom ends of the legs are fixedly connected to the top of the bottom plate. A material delivery pipe is fixedly connected to the bottom of the left wall of the fuel bin, and the left end of the material delivery pipe is fixedly connected to the middle part of the right side of the outer wall of the boiler. A material delivery mechanism is installed inside the material delivery pipe and the fuel bin.

[0007] The feeding mechanism includes a rotating shaft, a reamer and a motor. The left end of the inner wall of the feeding pipe is fixedly connected to a support rod. The rotating shaft is located in the feeding pipe. The left end of the rotating shaft is rotatably connected to the support rod. The right end of the rotating shaft extends to the right along the inner bottom of the fuel bin. The right end of the rotating shaft is rotatably connected to the right inner wall of the fuel bin. The reamer is spiral-shaped and fixed to the outer wall of the rotating shaft. The outer wall of the reamer is gap-fitted with the inner wall of the feeding pipe and the inner bottom wall of the fuel bin. The motor is fixedly installed at the bottom of the right side wall of the fuel bin, and the left end of the output shaft of the motor is fixedly connected to the right end of the rotating shaft.

[0008] Beneficial effects of the utility model:

[0009] The utility model provides sufficient air through the fan to ensure full combustion of the fuel, thereby improving combustion efficiency. The water pipe is in a serpentine shape, which increases the contact area between water and heat and improves heat exchange efficiency. The motor drives the feeding mechanism to realize automatic transportation of fuel and automatic control of the combustion process, thereby reducing manual operation costs.

[0010] Biomass fuel is a renewable energy source. It produces relatively little greenhouse gases such as carbon dioxide during combustion, and the ash after combustion can be used as fertilizer, achieving resource recycling and environmental protection and energy saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Figure 2 yes Figure 1 Schematic diagram of the structure from the rear side perspective;

[0013] Figure 3 yes Figure 1 Left view of;

[0014] Figure 4 yes Figure 3 Cross-section at AA;

[0015] Figure 5 This is a schematic diagram of the internal structure of the boiler and fuel tank.

[0016] The specific reference numerals in all the drawings are: 1. base plate; 2. boiler; 3. grate; 4. water pipe; 5. water inlet pipe; 6. water outlet pipe; 7. smoke outlet pipe; 8. air inlet pipe; 9. fan; 10. ash outlet; 11. plug-in plate; 12. fuel bin; 13. support leg; 14. feed pipe; 15. support rod; 16. rotating shaft; 17. reamer; 18. motor. DETAILED DESCRIPTION

[0017] like Figure 1-5As shown: a biomass burner includes a bottom plate 1, a boiler 2 is fixed on the top left side of the bottom plate 1, a grate 3 is set at the lower middle position of the inner side of the boiler 2, a water pipe 4 is arranged above the grate 3, the water pipe 4 is serpentine and close to the left inner wall of the boiler 2, the front end bottom of the water pipe 4 is fixedly connected with a water inlet pipe 5, the water inlet pipe 5 passes through the front side of the outer wall of the boiler 2, the rear end top of the water pipe 4 is fixedly connected with a water outlet pipe 6, the water outlet pipe 6 passes through the rear side of the outer wall of the boiler 2, and valves are installed on the water outlet pipe 6 and the water inlet pipe 5. The top of the left outer wall of the boiler 2 is fixedly connected with a smoke outlet pipe 7, and the bottom of the right outer wall of the boiler 2 is fixed. It is connected with an air inlet pipe 8, and a fan 9 is fixedly installed at the right end of the air inlet pipe 8. The air outlet of the fan 9 is connected with the right end of the air inlet pipe 8. An ash discharge port 10 is provided at the bottom of the left outer wall of the boiler 2, and a plug plate 11 is inserted into the outer wall of the ash discharge port 10. A fuel bin 12 is provided on the right side of the boiler 2. Support legs 13 are fixedly connected to the four corners of the outer wall of the fuel bin 12, and the bottom end of the support leg 13 is fixedly connected to the top of the bottom plate 1. A material delivery pipe 14 is fixedly connected to the bottom of the left side wall of the fuel bin 12, and the left end of the material delivery pipe 14 is fixedly connected to the middle part of the right side of the outer wall of the boiler 2. A material delivery mechanism is installed inside the material delivery pipe 14 and the fuel bin 12.

[0018] The feeding mechanism includes a rotating shaft 16, a reamer 17 and a motor 18. The left end of the inner wall of the feeding pipe 14 is fixedly connected to the support rod 15. The rotating shaft 16 is located in the feeding pipe 14. The left end of the rotating shaft 16 is rotatably connected to the support rod 15. The right end of the rotating shaft 16 extends to the right along the inner bottom of the fuel bin 12. The right end of the rotating shaft 16 is rotatably connected to the right inner wall of the fuel bin 12. The reamer 17 is spiral-shaped. The reamer 17 is fixed to the outer wall of the rotating shaft 16. The outer wall of the reamer 17 is clearance-matched with the inner wall of the feeding pipe 14 and the inner bottom wall of the fuel bin 12. The motor 18 is fixedly installed at the bottom of the right side wall of the fuel bin 12. The left end of the output shaft of the motor 18 is fixedly connected to the right end of the rotating shaft 16.

[0019] First, biomass fuel (such as wood chips, crop straw, etc.) is put into the fuel bin 12.

[0020] Start the motor 18, which drives the shaft 16 to rotate. Since a spiral reamer 17 is fixed to the shaft 16, when the shaft 16 rotates, the reamer 17 pushes the fuel in the fuel bin 12 to move leftward along the feed pipe 14 until the fuel is delivered to the boiler 2.

[0021] The fuel falls onto the grate 3 in the boiler 2 through the feed pipe 14. At this time, the fan 9 is started and air is sent into the boiler 2 through the air inlet pipe 8 to help burn the fuel. The fuel burns on the grate 3 to generate heat.

[0022] The heat generated by the combustion of fuel heats the water in the water pipe 4 close to the inner wall of the left side of the boiler 2. The water pipe 4 is in a serpentine shape, which increases the contact area between water and heat and improves the heat exchange efficiency. After the water is heated, its temperature rises and forms hot water or steam.

[0023] When the water in the water pipe 4 is heated to the required temperature, the valve on the water outlet pipe 6 is opened, and hot water or steam can be output through the water outlet pipe 6 for heating, power generation or other industrial purposes.

[0024] Ashes generated during combustion accumulate at the bottom of the boiler 2 and can be cleaned regularly by opening the plug plate 11 on the ash discharge port 10. This utility model only protects the mechanical part, and the functions implemented by the software control part are not within the scope of protection of this utility model.

Claims

1. A biomass burner, characterized in that: The invention comprises a bottom plate (1), a boiler (2) is fixed on the left side of the top of the bottom plate (1), a grate (3) is arranged at the lower middle position of the inner side of the boiler (2), a water pipe (4) is arranged above the grate (3), the water pipe (4) is in a serpentine shape and is closely attached to the left inner wall of the boiler (2), the front end bottom of the water pipe (4) is fixedly connected with a water inlet pipe (5), the water inlet pipe (5) passes through the front side of the outer wall of the boiler (2), the rear end top of the water pipe (4) is fixedly connected with a water outlet pipe (6), the water outlet pipe (6) passes through the rear side of the outer wall of the boiler (2), valves are installed on the water outlet pipe (6) and the water inlet pipe (5), the top of the left outer wall of the boiler (2) is fixedly connected with a smoke outlet pipe (7), the bottom of the right outer wall of the boiler (2) is fixedly connected with an air inlet pipe (8), and the bottom of the right outer wall of the boiler (2) is fixedly connected with a smoke outlet pipe (9). The boiler (2) is provided with a fuel tank (12) on the right side. The fuel tank (12) is provided with a fuel tank (13) on the right side. The fuel tank (12) is provided with a fuel tank (14) on the right side. The fuel tank (12) is provided with a fuel tank (14) on the right side. The fuel tank (12) is provided with a fuel tank (14) on the right side. The fuel tank (12) is provided with a fuel tank (14) on the right side. The fuel tank (12) is provided with a fuel tank (14) on the right side. The fuel tank (12) is provided with a fuel tank (14) on the right side. The fuel tank (12) is provided with a fuel tank (14) on the right side. The fuel tank (12) is provided with a fuel tank (14) on the right side.

2. A biomass burner according to claim 1, characterized in that: The feeding mechanism comprises a rotating shaft (16), a reamer (17) and a motor (18). The left end of the inner wall of the feeding pipe (14) is fixedly connected with a support rod (15). The rotating shaft (16) is located in the feeding pipe (14). The left end of the rotating shaft (16) is rotatably connected to the support rod (15). The right end of the rotating shaft (16) extends to the right along the inner bottom of the fuel bin (12). The right end of the rotating shaft (16) is rotatably connected to the right inner wall of the fuel bin (12). The reamer (17) is spiral-shaped. The reamer (17) is fixed to the outer wall of the rotating shaft (16). The outer wall of the reamer (17) is clearance-matched with the inner wall of the feeding pipe (14) and the inner bottom wall of the fuel bin (12). The motor (18) is fixedly installed at the bottom of the right wall of the fuel bin (12). The left end of the output shaft of the motor (18) is fixedly connected to the right end of the rotating shaft (16).

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