Drum-type biomass burner

Abstract

The utility model relates to the field of fire grates, and discloses a drum-type biomass burner, which comprises a furnace barrel, the furnace barrel is in a transverse cylindrical shape, support legs are fixedly connected to the front and rear sides of the left and right side walls of the furnace barrel, a furnace door is embedded into the front side wall of the furnace barrel, and the upper edge of the furnace door is rotatably connected with the furnace barrel. The bottom of the lower edge of the furnace door is in threaded connection with a locking stud, the locking stud is in threaded connection with the outer wall of an ash discharging square pipe, the bottom of the furnace barrel fixedly communicates with the upper end of the ash discharging square pipe, air inlet holes distributed in an array mode are formed in the front side wall of the ash discharging square pipe, an inserting plate is inserted into the bottom of the rear side wall of the ash discharging square pipe, and the upper end and the lower end of the ash discharging square pipe are open. The inserting plate is located below the air inlet hole, and the front end of the inserting plate abuts against the inner wall of the ash discharging square pipe. Fuel is evenly distributed in the furnace barrel through rotation of the furnace grate, the contact area of the fuel and air is increased, and therefore combustion efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of grate, specifically a drum-type biomass burner. Background Technology

[0002] In biomass combustion equipment, fuel often fails to burn completely due to uneven distribution and insufficient oxygen supply. This not only reduces thermal efficiency but also increases the emission of harmful substances.

[0003] Due to uneven fuel distribution inside biomass combustion equipment, some fuels burn incompletely due to lack of oxygen, producing a large amount of black smoke and unburned ash. Although moving the grate can propel the fuel forward, it often results in fuel accumulation and uneven combustion. Utility Model Content

[0004] To overcome the above-mentioned shortcomings, this utility model provides a drum-type biomass burner.

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

[0006] A rotary biomass burner includes a furnace cylinder, which is transversely cylindrical. Support legs are fixedly connected to the front and rear sides of the left and right sidewalls of the furnace cylinder. A furnace door is embedded in the front sidewall of the furnace cylinder, with the upper edge of the door rotatably connected to the furnace cylinder. A locking stud is threadedly connected to the bottom edge of the furnace door, and the locking stud is threadedly connected to the outer wall of an ash discharge square tube. The bottom of the furnace cylinder is fixedly connected to the upper end of the ash discharge square tube. An array of air inlets is opened on the front sidewall of the ash discharge square tube. An insert plate is inserted into the bottom of the rear sidewall of the ash discharge square tube. The upper and lower ends of the ash discharge square tube are open, and the insert plate is located below the air inlets. The front end of the insert plate abuts against the inner wall of the ash discharge square tube. The top left side of the furnace cylinder... The furnace is fixedly connected to an exhaust pipe, which contains an exhaust fan. Inside the furnace cylinder is a grate, which is cylindrical and open at the right end. The grate is fitted with the inner wall of the furnace cylinder with a clearance fit. A bearing is fitted onto the right side of the outer wall of the grate, and the grate is rotatably connected to the inner wall of the furnace cylinder via the bearing. The bearing is a sealed bearing. A motor is fixedly installed on the left side wall of the furnace cylinder. The output shaft of the motor passes through the left side wall of the furnace cylinder and is rotatably connected to the furnace cylinder. The output shaft of the motor is fixedly connected to the center of the left end of the grate. The right side of the furnace cylinder has a fuel delivery mechanism, which is connected to the furnace cylinder and extends into the grate.

[0007] The fuel delivery mechanism includes a feed pipe and a feed hopper. The feed pipe is fixedly connected to the right end of the furnace cylinder. The left end of the feed pipe passes through the right side wall of the furnace cylinder and extends to the inside of the grate. The feed hopper is fixedly connected to the top of the right half of the feed pipe. The bottom of the feed hopper is connected to the feed pipe. There is a rotating shaft inside the feed pipe. The left and right ends of the rotating shaft are rotatably connected to the vertical plate and the inner wall of the right end of the feed pipe, respectively. The vertical plate is fixedly connected to the top of the inner wall of the right end of the feed pipe. A reamer is fixedly connected to the outer wall of the rotating shaft. The reamer is spiral in shape. The outer wall of the reamer is clearance-fitted with the inner wall of the feed pipe. A second motor is fixedly installed at the right end of the feed pipe. The output shaft of the second motor is fixedly connected to the right end of the rotating shaft. The right end of the rotating shaft passes through the right side wall of the feed pipe.

[0008] The beneficial effects of this utility model are:

[0009] This invention improves combustion efficiency by rotating the grate to distribute fuel evenly within the furnace cylinder and increasing the contact area between fuel and air.

[0010] The spiral cutter design ensures that fuel is fed continuously and evenly into the grate, avoiding problems such as fuel accumulation and incomplete combustion. Attached Figure Description

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

[0012] Figure 2 yes Figure 1 Rear view structural diagram;

[0013] Figure 3 yes Figure 1 Diagram showing the opening of the furnace door;

[0014] Figure 4 yes Figure 1 A schematic diagram showing the structure after removing the conveying pipe and the feed hopper;

[0015] Figure 5 yes Figure 1 Rear view;

[0016] Figure 6 yes Figure 5 Cross-sectional view at point AA;

[0017] Figure 7 yes Figure 1 The left view;

[0018] Figure 8 yes Figure 7 Cross-sectional view at point BB.

[0019] The specific reference numerals in all the attached drawings are as follows: 1. Furnace cylinder; 2. Support leg; 3. Furnace door; 4. Locking stud; 5. Ash discharge square tube; 6. Air inlet; 7. Insert plate; 8. Smoke exhaust pipe; 9. Exhaust fan; 10. Furnace grate; 11. Bearing; 12. Motor 1; 13. Conveying pipe; 14. Feed hopper; 15. Rotating shaft; 16. Reamer; 17. Motor 2; 18. Vertical plate; 20. Long slot. Detailed Implementation

[0020] like Figure 1-8 As shown: A drum-type biomass burner includes a furnace cylinder 1, which is a transverse cylindrical shape. Support legs 2 are fixedly connected to the front and rear sides of the left and right sidewalls of the furnace cylinder 1. A furnace door 3 is embedded in the front sidewall of the furnace cylinder 1. The upper edge of the furnace door 3 is rotatably connected to the furnace cylinder 1. A locking stud 4 is threadedly connected to the bottom edge of the furnace door 3. The locking stud 4 is threadedly connected to the outer wall of an ash discharge square tube 5. The bottom of the furnace cylinder 1 is fixedly connected to the upper end of the ash discharge square tube 5. The upper and lower ends of the ash discharge square tube 5 are open. An array of air inlets 6 is opened on the front sidewall of the ash discharge square tube 5. An insert plate 7 is inserted into the bottom of the rear sidewall of the ash discharge square tube 5, located below the air inlets 6. The front end of the insert plate 7 abuts against the inner wall of the ash discharge square tube 5. A vent is fixedly connected to the top left side of the furnace cylinder 1. The flue pipe 8 has an exhaust fan 9 installed inside it. The furnace cylinder 1 has a grate 10 inside it. The grate 10 is cylindrical and open at the right end. The grate 10 is fitted with the inner wall of the furnace cylinder 1 with a clearance fit. The outer right side of the grate 10 is fitted with a bearing 11. The grate 10 is rotatably connected to the inner wall of the furnace cylinder 1 through the bearing 11. The bearing 11 is a sealed bearing. A motor 12 is fixedly installed on the left side wall of the furnace cylinder 1. The output shaft of the motor 12 passes through the left side wall of the furnace cylinder 1 and is rotatably connected to the furnace cylinder 1. The output shaft of the motor 12 is fixedly connected to the center of the left end of the grate 10. The right side of the furnace cylinder 1 has a fuel conveying mechanism. The fuel conveying mechanism is connected to the furnace cylinder 1 and extends into the grate 10.

[0021] The fuel delivery mechanism includes a feed pipe 13 and a feed hopper 14. The feed pipe 13 is fixedly connected to the right end of the furnace cylinder 1. The left end of the feed pipe 13 passes through the right side wall of the furnace cylinder 1 and extends to the inside of the grate 10. The feed hopper 14 is fixedly connected to the top of the right half of the feed pipe 13. The bottom of the feed hopper 14 is connected to the feed pipe 13. The feed pipe 13 has a rotating shaft 15. The left and right ends of the rotating shaft 15 are rotatably connected to the vertical plate 18 and the inner wall of the right end of the feed pipe 13, respectively. The vertical plate 18 is fixedly connected to the top of the inner wall of the right end of the feed pipe 13. A reamer 16 is fixedly connected to the outer wall of the rotating shaft 15. The reamer 16 is spiral in shape. The outer wall of the reamer 16 is clearance-fitted with the inner wall of the feed pipe 13. A second motor 17 is fixedly installed at the right end of the feed pipe 13. The output shaft of the second motor 17 is fixedly connected to the right end of the rotating shaft 15. The right end of the rotating shaft 15 passes through the right side wall of the feed pipe 13. Motor 12 is a servo motor.

[0022] The grate 10 can be inspected and maintained by opening the furnace door 3. The grate 10 is cylindrical with an opening at the right end, and several elongated holes 20 are provided on the outer wall of the grate 10.

[0023] Fuel (such as coal, wood, etc.) is added into the conveying pipe 13 through the feed hopper 14. The second motor 17 is started, and the second motor 17 drives the rotating shaft 15 to rotate. The spiral cutter 16 on the rotating shaft 15 rotates accordingly. The cutter 16 pushes the fuel from the feed hopper 14 to the left end of the conveying pipe 13 and finally into the grate 10.

[0024] When motor 12 is started, the output shaft of motor 12 drives the grate 10 to rotate inside the furnace cylinder 1 through bearing 11. The rotation of grate 10 makes the fuel inside evenly distributed and promotes the combustion of fuel.

[0025] Fuel burns on the grate 10, generating heat and flue gas. The flue gas is discharged through the exhaust pipe 8 at the top of the furnace cylinder 1, and the exhaust fan 9 inside the exhaust pipe 8 accelerates the discharge of the flue gas.

[0026] Air enters the furnace drum 1 through the air inlet 6 on the front side of the ash discharge square tube 5, providing sufficient oxygen for the fuel.

[0027] The ash from the combustion process falls into the ash discharge tube 5 and can be cleaned by pulling out the insert plate 7. This utility model only protects the mechanical parts; functions implemented through software control are not within the scope of protection of this utility model.

Claims

1. A drum-type biomass burner, characterized in that, The furnace includes a furnace cylinder (1), which is a transverse cylindrical shape. Support legs (2) are fixedly connected to the front and rear sides of the left and right side walls of the furnace cylinder (1). A furnace door (3) is embedded in the front side wall of the furnace cylinder (1). The upper edge of the furnace door (3) is rotatably connected to the furnace cylinder (1). A locking stud (4) is threadedly connected to the bottom edge of the furnace door (3). The locking stud (4) is threadedly connected to the outer wall of the ash discharge square tube (5). The bottom of the furnace cylinder (1) is fixed. The upper end of the ash discharge square tube (5) is connected to the front side wall of the ash discharge square tube (5), which has an array of air inlets (6). A plate (7) is inserted into the bottom of the rear side wall of the ash discharge square tube (5). The upper and lower ends of the ash discharge square tube (5) are open. The plate (7) is located below the air inlets (6). The front end of the plate (7) abuts against the inner wall of the ash discharge square tube (5). A flue pipe (8) is fixedly connected to the top left side of the furnace cylinder (1). (8) is equipped with an exhaust fan (9). The furnace cylinder (1) has a grate (10) inside. The grate (10) is cylindrical and open at the right end. The grate (10) is fitted with the inner wall of the furnace cylinder (1) with a clearance. The outer wall of the grate (10) is fitted with a bearing (11) on the right side. The grate (10) is rotatably connected to the inner wall of the furnace cylinder (1) through the bearing (11). The bearing (11) is a sealed bearing. The left side wall of the furnace cylinder (1) is fixedly installed with a motor (12). The output shaft of the motor (12) passes through the left side wall of the furnace cylinder (1). The output shaft of the motor (12) is rotatably connected to the furnace cylinder (1). The output shaft of the motor (12) is fixedly connected to the center of the left end of the grate (10). The right side of the furnace cylinder (1) has a fuel conveying mechanism. The fuel conveying mechanism is connected to the furnace cylinder (1) and extends into the grate (10).

2. The drum-type biomass burner according to claim 1, characterized in that, The fuel delivery mechanism includes a feed pipe (13) and a feed hopper (14). The feed pipe (13) is fixedly connected to the right end of the furnace cylinder (1). The left end of the feed pipe (13) penetrates the right side wall of the furnace cylinder (1) and extends to the inside of the grate (10). The feed hopper (14) is fixedly connected to the top of the right half of the feed pipe (13). The bottom of the feed hopper (14) is connected to the feed pipe (13). The feed pipe (13) has a rotating shaft (15). The left and right ends of the rotating shaft (15) are respectively connected to the vertical plate (18) and the feed pipe (14). The right end inner wall of 13) is rotatably connected, the vertical plate (18) is fixedly connected to the top of the right end inner wall of the conveying pipe (13), the outer wall of the rotating shaft (15) is fixedly connected to the reamer (16), the reamer (16) is spiral, the outer wall of the reamer (16) is clearance-fitted with the inner wall of the conveying pipe (13), the right end of the conveying pipe (13) is fixedly installed with the second motor (17), the output shaft of the second motor (17) is fixedly connected to the right end of the rotating shaft (15), and the right end of the rotating shaft (15) penetrates the right end side wall of the conveying pipe (13).

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