Multi-stage air distribution biomass briquette boiler

Abstract

The utility model relates to the technical field of boilers, in particular to a multistage air distribution biomass briquette boiler which comprises a base and a boiler body, the base is fixedly connected with the boiler body through a supporting column, a feeding mechanism is arranged in the boiler body, a flame-retardant mechanism is arranged above the base, and the flame-retardant mechanism is arranged above the base. A discharging pipe is arranged on the left side of the boiler body, a slag discharging system and an ash discharging mechanism are arranged in the boiler body, and a multi-stage air distribution system is arranged above the boiler body. A first motor drives a disc to rotate, the disc drives a ball to move through a groove formed in the disc, the ball drives a support to move, the support drives a rotating rod to move, and when the disc drives the ball to move, the front-back position of the ball changes periodically, so that the rotating rod swings in a reciprocating mode during movement, the rotating rod drives a hopper to swing, and the hopper drives a material pipe to swing. And along with the movement of the layer dyeing associated fire grate, the biomass briquette fuel discharged by the material pipe is uniformly scattered on the layer dyeing associated fire grate.

Description

Technical Field

[0001] The utility model relates to the technical field of boilers, in particular to a multi-stage air distribution biomass shaped fuel boiler. Background Art

[0002] Energy production and consumption related activities are the main source of carbon dioxide emissions. Vigorously promoting carbon emission reduction in the energy sector is an important measure to achieve carbon peak and carbon neutrality, and accelerate the construction of a modern energy system.

[0003] For example, the multi-stage air distribution biomass molded fuel boiler with patent number CN219889531U has a main structure including a layer-burning chain belt grate, a radiation front arch, a combustion-supporting rear arch, a membrane wall tube screen system and an upper steam drum. A biomass fuel feeding system is installed above the front row of the layer-burning chain belt grate, a multi-stage air distribution system is installed above the radiation front arch, the membrane wall tube screen system is connected to the upper steam drum, and a cyclone radiation chamber is provided at the flue gas outlet above the membrane wall tube screen system. The above-mentioned documents still have shortcomings. When in use, by setting a multi-stage air distribution system, the excess air coefficient is reduced, the problem of easy dust accumulation on the heating surface of the biomass fuel and easy corrosion of the tube bundle is solved, and the generation of nitrogen oxides is reduced. , thereby greatly improving the overall thermal efficiency of the boiler and ensuring the long-term stable and safe operation of the boiler. However, when the multi-level air distribution biomass molded fuel boiler in the above-mentioned document passes the biomass molded fuel into the layer-dyed joint grate, the biomass molded fuel accumulates on the layer-dyed joint grate, which easily causes incomplete combustion of the biomass molded fuel during combustion, and is not convenient for making the biomass fuel evenly spread on the layer-dyed joint grate, thereby reducing the performance of the multi-level air distribution biomass molded fuel boiler. At the same time, when the exhaust pipe of the boiler body discharges smoke, high-temperature hot dust will be mixed in the smoke. The high-temperature hot dust will cause fire hazards after being discharged, and it is not convenient to flame retard the emissions discharged from the boiler body. Utility Model Content

[0004] The utility model aims to solve the problem that it is inconvenient to evenly spread biomass fuel on the layer-dyeing grate, and proposes a multi-level air distribution biomass shaped fuel boiler.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A multi-stage air distribution biomass shaped fuel boiler is designed, comprising a base and a boiler body, the base is fixedly connected to the boiler body through a support, a feeding mechanism is arranged inside the boiler body, a flame retardant mechanism is arranged above the base, a discharge pipe is arranged on the left side of the boiler body, a slag discharge system and an ash discharge mechanism are arranged inside the boiler body, and a multi-stage air distribution system is arranged above the boiler body.

[0007] Preferably, the feeding mechanism includes a first motor, which is fixedly connected to the outer wall of the boiler body, and the output shaft of the first motor is fixedly connected to a disc, and the disc is rotatably connected to the boiler body through a bearing, and a groove arranged in the disc matches the clearance of the sphere, and a bracket is fixedly connected to the outer wall of the sphere, and the bracket is rotatably connected to the rotating rod through a pin shaft, and the outer wall of the lower end of the rotating rod is rotatably connected to the boiler body through a bearing, and a hopper is fixedly connected to the upper end of the rotating rod, and a material pipe is fixedly connected to the outer wall of the hopper.

[0008] Preferably, the flame retardant mechanism includes a water tank, which is fixedly connected to the upper surface of the base, and two electric push rods are fixedly connected to the outer wall of the water tank, and the output end of the electric push rod is fixedly connected to a horizontal plate, and a vertical rod is fixedly connected below the horizontal plate, and the lower end of the vertical rod is fixedly connected to a mesh groove, and the outer wall of the mesh groove is slidably connected to the water tank, the horizontal plate on the right side is fixedly connected to the outer wall of the lower end of the hose, and the upper end of the hose is fixedly connected to the discharge pipe.

[0009] Preferably, a layer-dyeing grate is provided inside the boiler body, and the base is fixedly connected to the barrel via a support.

[0010] Preferably, a second motor is fixedly connected to the outer wall of the barrel, and the barrel is connected to the boiler body through a discharge pipe.

[0011] Preferably, an auger is fixedly connected to the output shaft of the second motor, and outer walls at both ends of the auger are rotatably connected to the barrel through bearings.

[0012] The utility model proposes a multi-stage air distribution biomass molded fuel boiler, which has the beneficial effects of: through the cooperation between the first motor, the disc, the sphere, the bracket, the rotating rod, the hopper and the material pipe, the first motor drives the disc to rotate, the disc drives the sphere to move through the groove arranged inside, the sphere drives the bracket to move, the bracket drives the rotating rod to move, when the disc drives the sphere to move, the front and rear positions of the sphere change periodically, and then the rotating rod swings back and forth during movement, the rotating rod drives the hopper to swing, and the hopper drives the material pipe to swing, with the movement of the layer-dyed and connected grate, the biomass molded fuel discharged from the material pipe is evenly scattered on the layer-dyed and connected grate, so that the biomass fuel is evenly spread on the layer-dyed and connected grate, thereby improving the performance of the multi-stage air distribution biomass molded fuel boiler.

[0013] Through the cooperation among the water tank, electric push rod, horizontal plate, vertical rod, mesh tank and hose, the water in the water tank cools down the high-temperature smoke in the smoke, and the solid impurities in the smoke remain in the mesh tank. The electric push rod is started, and the electric push rod drives the horizontal plate to move upward, and the horizontal plate drives the vertical rod to move, and the vertical rod drives the mesh tank to move upward. The impurities in the mesh tank that have been cooled float to the water surface for cleaning. The high-temperature smoke is cooled down by the cooling effect of the water in the water tank to achieve flame retardancy. When in use, it is convenient to flame retard the emissions discharged from the boiler body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a structural sectional view of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the connection between the water tank, the electric push rod and the horizontal plate in the utility model;

[0017] Figure 4 It is a structural schematic diagram of the connection between the first motor, the disc and the sphere in the utility model;

[0018] Figure 5 It is a structural schematic diagram of the connection between the sphere, the bracket and the rotating rod in the utility model;

[0019] Figure 6 It is a structural schematic diagram of the connection between the second motor, the auger and the feed pipe in the utility model.

[0020] In the figure: 1. base, 2. boiler body, 3. feeding mechanism, 301. first motor, 302. disc, 303. sphere, 304. bracket, 305. rotating rod, 306. hopper, 307. material pipe, 4. flame retardant mechanism, 401. water tank, 402. electric push rod, 403. horizontal plate, 404. vertical rod, 405. mesh groove, 406. hose, 4a1. drain pipe, 5. discharge pipe, 6. slag discharge system, 7. layer dyeing and grate, 8. ash discharge mechanism, 9. multi-stage air distribution system, 10. barrel, 11. second motor, 12. auger, 13. discharge pipe. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings:

[0022] Embodiment 1:

[0023] See attached Figure 1-6 : In this embodiment, a multi-level air distribution biomass briquette fuel boiler includes a base 1 and a boiler body 2. The base 1 is fixedly connected to the boiler body 2 through a support. A feeding mechanism 3 is arranged inside the boiler body 2. The feeding mechanism 3 facilitates the biomass briquette fuel to be evenly spread on the layer dyeing grate 7. A flame retardant mechanism 4 is arranged above the base 1. The flame retardant mechanism 4 processes the hot ash discharged from the boiler body 2. A discharge pipe 5 is arranged on the left side of the boiler body 2. The discharge pipe 5 facilitates the discharge of smoke from the combustion of the boiler body 2;

[0024] A slag discharge system 6 and an ash discharge mechanism 8 are provided inside the boiler body 2, and a multi-stage air distribution system 9 is provided above the boiler body 2. The structural functions of the slag discharge system 6, the ash discharge mechanism 8, the multi-stage air distribution system 9 and the layer dyeing grate 7 are the same as those in the multi-stage air distribution biomass molding fuel boiler with patent number CN219889531U. A layer dyeing grate 7 is provided inside the boiler body 2, and the base 1 is fixedly connected to the barrel 10 through a support, and a second motor 11 is fixedly connected to the outer wall of the barrel 10. The barrel 10 is connected to the boiler body 2 through a discharge pipe 13, and an auger 12 is fixedly connected to the output shaft of the second motor 11. The second motor 11 drives the auger 12 to rotate, and the outer walls at both ends of the auger 12 are rotatably connected to the barrel 10 through bearings.

[0025] The feeding mechanism 3 includes a first motor 301, a disc 302, a sphere 303, a bracket 304, a rotating rod 305, a hopper 306 and a material pipe 307. The first motor 301 is fixedly connected to the outer wall of the boiler body 2. The output shaft of the first motor 301 is fixedly connected to the disc 302. The first motor 301 drives the disc 302 to rotate. The disc 302 is rotatably connected to the boiler body 2 through a bearing. The grooves provided in the disc 302 are in clearance with the sphere 303. The disc 302 drives the sphere 303 to move through the grooves provided inside.

[0026] The outer wall of the sphere 303 is fixedly connected with a bracket 304, the sphere 303 drives the bracket 304 to move, the bracket 304 is rotatably connected with the rotating rod 305 through a pin shaft, the bracket 304 drives the rotating rod 305 to rotate, the outer wall of the lower end of the rotating rod 305 is rotatably connected with the boiler body 2 through a bearing, the upper end of the rotating rod 305 is fixedly connected with a hopper 306, the rotating rod 305 drives the hopper 306 to rotate, the outer wall of the hopper 306 is fixedly connected with a material pipe 307, and the hopper 306 is connected with the material pipe 307;

[0027] The first motor 301 drives the disc 302 to rotate, and the disc 302 drives the ball 303 to move through the grooves arranged inside, and the ball 303 drives the bracket 304 to move, and the bracket 304 drives the rotating rod 305 to move. When the disc 302 drives the ball 303 to move, the front and rear positions of the ball 303 change periodically, and then the rotating rod 305 swings back and forth during movement, and the rotating rod 305 drives the hopper 306 to swing, and the hopper 306 drives the material pipe 307 to swing. With the movement of the layer-dyeing grate 7, the biomass molding fuel discharged from the material pipe 307 is evenly spread on the layer-dyeing grate 7, so that the biomass fuel is evenly spread on the layer-dyeing grate 7, thereby improving the performance of the multi-stage air distribution biomass molding fuel boiler.

[0028] The flame retardant mechanism 4 includes a water tank 401, an electric push rod 402, a horizontal plate 403, a vertical rod 404, a net groove 405 and a hose 406. The water tank 401 is fixedly connected to the upper surface of the base 1. Two electric push rods 402 are fixedly connected to the outer wall of the water tank 401. The output end of the electric push rod 402 is fixedly connected to the horizontal plate 403. The electric push rod 402 drives the horizontal plate 403 to move. The vertical rod 404 is fixedly connected to the lower part of the horizontal plate 403. The horizontal plate 403 drives the vertical rod 404 to move.

[0029] The lower end of the vertical rod 404 is fixedly connected with a net groove 405, and the vertical rod 404 drives the net groove 405 to slide. The outer wall of the net groove 405 is slidably connected to the water tank 401. The right horizontal plate 403 is fixedly connected to the outer wall of the lower end of the hose 406. The right horizontal plate 403 drives the hose 406 to move. The hose 406 is a 304 stainless steel hose. The upper end of the hose 406 is fixedly connected to the discharge pipe 5, and the hose 406 is connected to the discharge pipe 5.

[0030] The water in the water tank 401 cools down the high-temperature smoke in the smoke, and the solid impurities in the smoke remain in the inside of the mesh slot 405. The electric push rod 402 is started, and the electric push rod 402 drives the horizontal plate 403 to move upward, and the horizontal plate 403 drives the vertical rod 404 to move, and the vertical rod 404 drives the mesh slot 405 to move upward. The impurities in the mesh slot 405 that have been cooled float to the water surface to be cleaned, and the high-temperature smoke is cooled by the cooling effect of the water in the water tank 401 to achieve flame retardancy. When in use, it is convenient to flame retard the emissions discharged from the boiler body 1.

[0031] Working principle:

[0032] When biomass pellet fuel is burned in a multi-stage air distribution biomass pellet fuel boiler;

[0033] Biomass briquette fuel paving stage:

[0034] Add the biomass shaped fuel into the barrel 10, the second motor 11 drives the auger 12 to rotate, the auger 12 transports the biomass shaped fuel, the biomass shaped fuel enters the boiler body 2 through the discharge pipe 13 and falls into the hopper 306, is discharged from the material pipe 307 and falls onto the layer dyeing grate 7, the first motor 301 is started, the first motor 301 drives the disc 302 to rotate, the disc 302 drives the ball 303 to move through the groove set inside, the ball 303 drives the bracket 304 to move, and the bracket 304 drives The rotating rod 305 moves, and when the disc 302 drives the sphere 303 to move, the front and rear positions of the sphere 303 change periodically, and then the rotating rod 305 swings back and forth during the movement, the rotating rod 305 drives the hopper 306 to swing, and the hopper 306 drives the material pipe 307 to swing. With the movement of the layer dyeing grate 7, the biomass briquette fuel discharged from the material pipe 307 is evenly spread on the layer dyeing grate 7, so that the biomass fuel is evenly spread on the layer dyeing grate 7, thereby improving the performance of the multi-stage air distribution biomass briquette fuel boiler;

[0035] Flame retardant stage:

[0036] The smoke generated by the combustion of biomass molded fuel in the boiler body 2 is discharged from the discharge pipe 5 into the interior of the hose 406, and finally discharged from the lower end of the hose 406 into the water tank 401. The water in the water tank 401 cools down the high-temperature smoke in the smoke, and the solid impurities in the smoke remain in the mesh groove 405. The electric push rod 402 is started, and the electric push rod 402 drives the horizontal plate 403 to move upward, and the horizontal plate 403 drives the vertical rod 404 to move, and the vertical rod 404 drives the mesh groove 405 to move upward. The impurities in the mesh groove 405 that have been cooled float to the water surface to be cleaned, and the high-temperature smoke is cooled by the cooling effect of the water in the water tank 401 to achieve flame retardancy. When in use, it is convenient to flame retard the emissions discharged from the boiler body 1.

[0037] Embodiment 2:

[0038] See attached Figure 1-6 : In this embodiment, a multi-level wind distribution biomass briquette fuel boiler, the flame retardant mechanism 4 also includes a drain pipe 4a1, the outer wall of the right end of the drain pipe 4a1 is fixedly connected to the water tank 401, and the outer wall of the drain pipe 4a1 is provided with a control valve;

[0039] Through the function of the drain pipe 4a1, opening the control valve provided on the outer wall of the drain pipe 4a1 makes it easy to drain the water in the water tank 401 and to replace the water in the water tank 401.

[0040] Working principle:

[0041] Opening the control valve disposed on the outer wall of the discharge pipe 4a1 facilitates the discharge of water in the water tank 401 and the replacement of water in the water tank 401 .

[0042] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A multi-level air distribution biomass briquette fuel boiler, comprising a base (1) and a boiler body (2), wherein the base (1) is fixedly connected to the boiler body (2) via a support, and characterized in that: A feeding mechanism (3) is arranged inside the boiler body (2), a flame retardant mechanism (4) is arranged above the base (1), a discharge pipe (5) is arranged on the left side of the boiler body (2), a slag discharge system (6) and an ash discharge mechanism (8) are arranged inside the boiler body (2), and a multi-stage air distribution system (9) is arranged above the boiler body (2).

2. The multi-level air distribution biomass briquette fuel boiler according to claim 1 is characterized by: The feeding mechanism (3) comprises a first motor (301), the first motor (301) is fixedly connected to the outer wall of the boiler body (2), the output shaft of the first motor (301) is fixedly connected to a disc (302), the disc (302) is rotatably connected to the boiler body (2) via a bearing, a groove arranged in the disc (302) is clearance-matched with the sphere (303), the outer wall of the sphere (303) is fixedly connected to a bracket (304), the bracket (304) is rotatably connected to a rotating rod (305) via a pin shaft, the outer wall of the lower end of the rotating rod (305) is rotatably connected to the boiler body (2) via a bearing, the upper end of the rotating rod (305) is fixedly connected to a hopper (306), and the outer wall of the hopper (306) is fixedly connected to a material pipe (307).

3. The multi-level air distribution biomass briquette fuel boiler according to claim 1 is characterized by: The flame retardant mechanism (4) comprises a water tank (401), the water tank (401) is fixedly connected to the upper surface of the base (1), the outer wall of the water tank (401) is fixedly connected to two electric push rods (402), the output end of the electric push rod (402) is fixedly connected to a horizontal plate (403), the lower part of the horizontal plate (403) is fixedly connected to a vertical rod (404), the lower end of the vertical rod (404) is fixedly connected to a net groove (405), the outer wall of the net groove (405) is slidably connected to the water tank (401), the right side of the horizontal plate (403) is fixedly connected to the outer wall of the lower end of the hose (406), and the upper end of the hose (406) is fixedly connected to the discharge pipe (5).

4. The multi-level air distribution biomass briquette fuel boiler according to claim 1 is characterized by: The boiler body (2) is provided with a layer dyeing grate (7) inside, and the base (1) is fixedly connected to the barrel (10) via a support.

5. The multi-graded air distribution biomass briquette fuel boiler according to claim 4 is characterized in that: A second motor (11) is fixedly connected to the outer wall of the barrel (10), and the barrel (10) is connected to the boiler body (2) via a discharge pipe (13).

6. The multi-graded air distribution biomass briquette fuel boiler according to claim 5 is characterized by: The output shaft of the second motor (11) is fixedly connected to an auger (12), and the outer walls of both ends of the auger (12) are rotatably connected to the barrel (10) via bearings.

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