Biomass boiler

Abstract

The utility model relates to the field of boilers, and discloses a biomass boiler which comprises a hearth, an ash discharge port is formed in the bottom of the front side wall of the hearth, inserting plates are inserted into the left side and the right side of the ash discharge port, an air inlet pipe is fixedly communicated with the bottom of the outer wall of the left side of the hearth, the left end of the air inlet pipe extends upwards, and a boiler cover is installed on the left side of the top of the hearth. An exhaust fan is fixedly installed on the right side of the top of the hearth, a suction opening of the exhaust fan is communicated with the top of the hearth, an exhaust opening of the exhaust fan is fixedly communicated with a smoke outlet pipe, a fire grate is arranged in the hearth, erected on the lower middle portion of the inner side of the hearth and located on the top of the ash discharging opening, and a partition plate is arranged on the right side in the hearth. Due to the design of the air inlet pipe, air can circularly flow in the hearth, the combustion efficiency can be improved, sufficient combustion of fuel is ensured, the residence time of flue gas can be shortened through circulating air inlet and outlet, and the content of harmful substances in the flue gas is reduced.

Description

Technical Field

[0001] The utility model relates to the field of boilers, specifically a biomass boiler. Background Art

[0002] As a renewable and environmentally friendly form of energy, biomass energy has received widespread attention and application in recent years.

[0003] During the combustion process of biomass boilers, problems such as uneven fuel supply and poor air circulation lead to low combustion efficiency and serious fuel waste. Utility Model Content

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

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

[0006] A biomass boiler comprises a furnace, an ash discharge port is provided at the bottom of the front side wall of the furnace, plug-in plates are plugged into the left and right sides of the ash discharge port, an air inlet pipe is fixedly connected to the bottom of the left outer wall of the furnace, the left end of the air inlet pipe extends upward, a furnace cover is installed on the left top of the furnace, an exhaust fan is fixedly installed on the right top of the furnace, the exhaust port of the exhaust fan is connected to the top of the furnace, the exhaust port of the exhaust fan is fixedly connected to the smoke outlet pipe, a grate is provided inside the furnace, the grate is mounted at the lower middle position of the inner side of the furnace, the grate is located at the top of the ash discharge port, the left end of the front outer wall of the furnace is fixedly connected to the left An observation window is embedded on the side, which is located above the grate. There is a partition on the right side of the interior of the furnace. The outer wall of the partition is fixedly connected to the inner top wall and the front and rear inner walls of the furnace. The bottom of the partition is fitted with a gap between the inner bottom wall of the furnace. The partition is located on the left side of the exhaust fan. There is a fuel bin on the rear side of the furnace. The four corners of the outer wall of the fuel bin are fixedly connected to support legs. The bottom of the fuel bin is fixedly connected to a feed pipe. The top of the rear half of the feed pipe is connected to the bottom of the fuel bin, and the front end of the feed pipe is fixedly connected to the furnace. The feed pipe is located on the left side of the partition, and a feeding mechanism is installed in the feed pipe.

[0007] The feeding mechanism includes a rotating shaft, which is located inside the feeding pipe. The inner wall of the front end of the feeding pipe is fixedly connected to a support rod. The front end of the rotating shaft is rotatably connected to the support rod, and the rear end of the rotating shaft is rotatably connected to the inner wall of the rear end of the feeding pipe. A reamer is fixedly connected to the outer wall of the rotating shaft, and the reamer is spiral-shaped. The outer wall of the reamer is clearance-matched with the inner wall of the feeding pipe. A motor is fixedly installed at the rear end of the feeding pipe, and the front end of the output shaft of the motor is fixedly connected to the rear end of the rotating shaft. The furnace seat is fixed on the upper part of the furnace.

[0008] Beneficial effects of the utility model:

[0009] The utility model allows air to circulate in the furnace through the design of the air inlet pipe, which helps to improve combustion efficiency and ensure sufficient combustion of fuel. The circulating air inlet and outlet can also reduce the residence time of smoke and reduce the content of harmful substances in the smoke.

[0010] The feeding mechanism composed of a motor and a reamer realizes the automatic addition of fuel. This reduces the labor intensity of the operator and improves work efficiency. The automatic feeding can also ensure the continuous supply of fuel and avoid combustion interruption. 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 Front view of

[0013] Figure 3 yes Figure 2 Cross-section at AA;

[0014] Figure 4 yes Figure 2 Cross-section at the middle BB;

[0015] Figure 5 yes Figure 1 Left view of;

[0016] Figure 6 yes Figure 5 Cross-section at CC.

[0017] In all the drawings, the specific reference numerals are: 1. furnace; 2. ash discharge port; 3. plug plate; 4. air inlet pipe; 5. furnace cover; 6. exhaust fan; 7. smoke outlet pipe; 8. grate; 9. observation window; 10. partition; 11. fuel bin; 12. support leg; 13. feed pipe; 14. support rod; 15. rotating shaft; 16. reamer; 17. motor; 18. furnace base. DETAILED DESCRIPTION

[0018] like Figure 1-6As shown: A biomass boiler includes a furnace 1, an ash discharge port 2 is provided at the bottom of the front side wall of the furnace 1, and plug plates 3 are inserted on the left and right sides of the ash discharge port 2. An air inlet pipe 4 is fixedly connected to the bottom of the left outer wall of the furnace 1, and the left end of the air inlet pipe 4 extends upward. A furnace cover 5 is installed on the left side of the top of the furnace 1, and an exhaust fan 6 is fixedly installed on the right side of the top of the furnace 1. The air outlet of the exhaust fan 6 is connected to the top of the furnace 1, and the air outlet of the exhaust fan 6 is fixedly connected to the smoke outlet 7. The interior of the furnace 1 is provided with a grate 8, which is mounted in the lower middle part of the inner side of the furnace 1 and is located at the top of the ash discharge port 2. An observation window is inlaid on the left side of the front outer wall of the furnace 1 9. The observation window 9 is located above the grate 8. A partition 10 is provided on the right side of the interior of the furnace 1. The outer wall of the partition 10 is fixedly connected to the inner top wall and the front and rear inner walls of the furnace 1. The bottom of the partition 10 is gap-fitted with the inner bottom wall of the furnace 1. The partition 10 is located on the left side of the exhaust fan 6. A fuel bin 11 is provided on the rear side of the furnace 1. Legs 12 are fixedly connected to the four corners of the outer wall of the fuel bin 11. A feed pipe 13 is fixedly connected to the bottom of the fuel bin 11. The top of the rear half of the feed pipe 13 is connected to the bottom of the fuel bin 11. The front end of the feed pipe 13 is fixedly connected to the furnace 1. The feed pipe 13 is located on the left side of the partition 10. A feeding mechanism is installed in the feed pipe 13.

[0019] The feeding mechanism includes a rotating shaft 15, which is located inside the feeding pipe 13. The front inner wall of the feeding pipe 13 is fixedly connected to a support rod 14. The front end of the rotating shaft 15 is rotatably connected to the support rod 14, and the rear end of the rotating shaft 15 is rotatably connected to the rear inner wall of the feeding pipe 13. The outer wall of the rotating shaft 15 is fixedly connected to a reamer 16. The reamer 16 is spiral-shaped, and the outer wall of the reamer 16 is loosely matched with the inner wall of the feeding pipe 13. The rear end of the feeding pipe 13 is fixedly mounted with a motor 17, and the front end of the output shaft of the motor 17 is fixedly connected to the rear end of the rotating shaft 15. A furnace base 18 is fixed to the upper portion of the furnace 1.

[0020] Cooking utensils are placed on the stove base 18 tops.

[0021] The biomass fuel is placed in the fuel bin 11 . When fuel needs to be added, the fuel enters the furnace 1 through the delivery pipe 13 at the bottom of the fuel bin 11 .

[0022] The motor 17 is started, driving the rotating shaft 15 in the feeding pipe 13 to rotate, and the spiral reamer 16 on the rotating shaft 15 pushes the fuel from the fuel bin 11 into the interior of the furnace 1 and falls onto the grate 8.

[0023] The fuel burns on the grate 8 in the furnace 1. The grate 8 is set in the lower middle part of the furnace 1 to facilitate the full combustion of the fuel.

[0024] The air inlet pipe 4 provides air to the furnace 1 to support the combustion of the fuel. The air can flow in the furnace 1 to improve the combustion efficiency. The flue gas generated by the combustion is extracted through the exhaust fan 6 at the top of the furnace 1 and discharged to the outside through the smoke outlet pipe 7.

[0025] The operator can observe the combustion conditions in the furnace 1, such as flame color, combustion state, etc., through the observation window 9. According to needs, the operator can adjust parameters such as air intake volume and fuel addition speed to optimize combustion efficiency.

[0026] The ash produced during the combustion process is discharged through the ash discharge port 2. The plug plates 3 on the left and right sides of the ash discharge port 2 can control the discharge of the ash. This utility model only protects the mechanical part, and the functions realized by the software control part are not within the scope of protection of this utility model.

Claims

1. A biomass boiler, characterized in that: The invention comprises a furnace (1), an ash discharge port (2) is provided at the bottom of the front side wall of the furnace (1), plug-in plates (3) are plugged into the left and right sides of the ash discharge port (2), an air inlet pipe (4) is fixedly connected to the bottom of the left outer wall of the furnace (1), the left end of the air inlet pipe (4) extends upward, a furnace cover (5) is installed on the left side of the top of the furnace (1), an exhaust fan (6) is fixedly installed on the right side of the top of the furnace (1), the air outlet of the exhaust fan (6) is connected to the top of the furnace (1), the air outlet of the exhaust fan (6) is fixedly connected to the smoke outlet pipe (7), a grate (8) is provided inside the furnace (1), the grate (8) is mounted at the lower middle position of the inner side of the furnace (1), the grate (8) is located at the top of the ash discharge port (2), and an observation window (9) is inlaid on the left side of the front outer wall of the furnace (1) for observation. The window (9) is located above the grate (8). A partition (10) is provided on the right side of the interior of the furnace (1). The outer wall of the partition (10) is fixedly connected to the inner top wall and the front and rear inner walls of the furnace (1). The bottom of the partition (10) is clearance-matched with the inner bottom wall of the furnace (1). The partition (10) is located on the left side of the exhaust fan (6). A fuel bin (11) is provided on the rear side of the furnace (1). The four corners of the outer wall of the fuel bin (11) are fixedly connected to support legs (12). The bottom of the fuel bin (11) is fixedly connected to a feed pipe (13). The top of the rear half of the feed pipe (13) is connected to the bottom of the fuel bin (11). The front end of the feed pipe (13) is fixedly connected to the furnace (1). The feed pipe (13) is located on the left side of the partition (10). A feeding mechanism is installed in the feed pipe (13).

2. A biomass boiler according to claim 1, characterized in that: The feeding mechanism comprises a rotating shaft (15), the rotating shaft (15) is located inside the feeding pipe (13), the front inner wall of the feeding pipe (13) is fixedly connected to a support rod (14), the front end of the rotating shaft (15) is rotatably connected to the support rod (14), the rear end of the rotating shaft (15) is rotatably connected to the rear inner wall of the feeding pipe (13), the outer wall of the rotating shaft (15) is fixedly connected to a reamer (16), the reamer (16) is spiral-shaped, the outer wall of the reamer (16) is clearance-matched with the inner wall of the feeding pipe (13), the rear end of the feeding pipe (13) is fixedly mounted with a motor (17), the front end of the output shaft of the motor (17) is fixedly connected to the rear end of the rotating shaft (15), a furnace base (18) is provided around the furnace cover (5), and the furnace base (18) is fixed to the upper part of the furnace chamber (1).

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