Special feeding mechanism for biomass boiler

Abstract

The utility model discloses a special feeding mechanism for a biomass boiler, and relates to the technical field of boiler feeding. The feeding device comprises a feeding pipe, a supporting frame is fixedly connected to the circumferential side face of the feeding pipe, a heat dissipation assembly is arranged on the supporting frame and comprises an L-shaped plate fixedly connected with the supporting frame, a straight plate is fixedly connected to the side face of the L-shaped plate, a rotating shaft is rotationally connected to the side face of the straight plate, and a first gear is fixedly connected to the end of the rotating shaft. A feeding shaft can drive a sliding rod to reciprocate through mutual cooperation of a first gear and a second gear, the sliding rod drives a piston plate to reciprocate in piston barrels, cooling liquid in the two piston barrels is circulated, when the boiler is used, the temperature of a discharging pipe can be increased, the combustion temperature of biomass fuel is low, and fire disasters are likely to happen; and through circulation of cooling liquid, the discharging pipe can be cooled in the feeding process, and tempering of the feeding device can be avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of boiler feeding, and particularly relates to a feeding mechanism special for biomass boilers. Background Art

[0002] A biomass boiler is a device that uses biomass fuels (such as wood chips, straws, biological wastes, etc.) for combustion to generate heat energy. They are usually used for heating and power generation and have the characteristics of environmental protection and renewable energy.

[0003] During the process of feeding a biomass boiler with the existing feeding mechanism, the volatile content of the biomass fuel is over 70%, and the combustion temperature of the biomass fuel is low. During the feeding process, backfire is likely to occur, which may cause a fire in the fuel bin.

[0004] Therefore, we provide a feeding mechanism special for biomass boilers to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a feeding mechanism special for biomass boilers. By driving a feeding shaft to rotate through a motor, and through the mutual cooperation between a first gear and a second gear, the feeding shaft can drive a sliding rod to move reciprocally. The sliding rod drives a piston plate to move reciprocally in a piston barrel, circulating the coolant in the two piston barrels. When in use, the temperature of the discharge pipe will be increased by the boiler. Since the combustion temperature of the biomass fuel itself is low and a fire is likely to occur, through the circulation of the coolant, the discharge pipe can be cooled during the feeding process, and backfire of the feeding device can be avoided.

[0006] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0007] The utility model is a feeding mechanism special for biomass boilers, including a feeding pipe; a support frame is fixedly connected to the peripheral side of the feeding pipe, a heat dissipation component is arranged on the support frame, the heat dissipation component includes an L-shaped plate fixedly connected to the support frame, a straight plate is fixedly connected to the side surface of the L-shaped plate, a rotating shaft is rotatably connected to the side surface of the straight plate, a first gear is fixedly connected to the end of the rotating shaft, a matching shaft is fixedly connected to an eccentric position on the side surface of the first gear, two connecting rods are symmetrically and fixedly connected to the side surface of the straight plate, connection sleeves are fixedly connected to the ends of the two connecting rods, sliding rods are slidably arranged in the two connection sleeves, a matching sleeve is fixedly connected between the two sliding rods, and a cooling part is arranged in the heat dissipation component.

[0008] The utility model is further arranged such that the cooling part includes two piston barrels, liquid inlet pipes are fixedly connected to the peripheral sides of the two piston barrels, valves are arranged on the liquid inlet pipes, piston plates are slidably arranged in the piston barrels, and the two piston plates are respectively fixedly connected to the corresponding sliding rods.

[0009] The present utility model is further configured such that liquid outlet pipes are fixedly connected to the peripheral side surfaces of both of the piston barrels, and an annular heat dissipation pipe is fixedly connected between the two liquid outlet pipes.

[0010] The present utility model is further configured such that a mounting plate is fixedly connected to the end of the feed pipe, a feed shaft is rotatably connected through one side surface of the mounting plate, an auger is arranged on the feed shaft, a motor is bolted to the other side surface of the mounting plate, and an output end of the motor is fixedly connected to the feed shaft.

[0011] The present utility model is further configured such that a feed inlet is formed in the peripheral side surface of the feed pipe, a feed hopper communicated with the feed pipe is fixedly connected to the peripheral side surface of the feed pipe, and the feed shaft is rotatably connected through the feed pipe.

[0012] The present utility model is further configured such that a discharge pipe is fixedly connected to the bottom surface of the feed pipe, a second gear is fixedly connected to the end of the feed shaft, and the second gear meshes with a first gear.

[0013] The present utility model is further configured such that a ball valve is arranged on the discharge pipe, and the discharge pipe is in mutual contact with the annular heat dissipation pipe.

[0014] The present utility model is further configured such that two bases are symmetrically and fixedly connected to the bottom surface of the support frame, and a fixing plate is fixedly connected between one of the bases and the piston barrel.

[0015] The present utility model has the following beneficial effects:

[0016] 1. When the present utility model is in use, through the mutual cooperation between the first gear and the second gear, it can drive the two piston plates to reciprocate in the piston barrels during the feeding process. The piston plates push the coolant in the piston barrels to circulate, and heat exchange is performed on the discharge pipe through the annular heat dissipation pipe, avoiding backfire caused by excessive temperature of the discharge pipe.

[0017] 2. When the present utility model is in use, after stopping the feeding, the ball valve is closed, which can cut off the connection between the boiler and the feeding device, avoid backfire, and further improve the fire prevention performance of the device.

[0018] Of course, it is not necessary for any product implementing the present utility model to simultaneously achieve all the above-mentioned advantages. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0020] Figure 1 It is a structural schematic diagram of a feeding mechanism dedicated to a biomass boiler.

[0021] Figure 2 It is a structural schematic diagram of the heat dissipation component of the present utility model.

[0022] Figure 3 It is a cross-sectional structural schematic diagram of the feeding pipe of the present utility model.

[0023] Figure 4 It is a structural schematic diagram of the cooling member of the present utility model.

[0024] Figure 5 It is an assembly drawing of the feeding pipe and the feed hopper of the present utility model.

[0025] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0026] 1. Feeding pipe; 2. Support frame; 3. Heat dissipation component; 4. L-shaped plate; 5. Straight plate; 6. Rotating shaft; 7. First gear; 8. Matching shaft; 9. Connecting rod; 10. Connecting sleeve; 11. Slide bar; 12. Matching sleeve; 13. Cooling member; 14. Piston barrel; 15. Liquid inlet pipe; 16. Valve; 17. Piston plate; 18. Liquid outlet pipe; 19. Annular heat dissipation pipe; 20. Feeding shaft; 21. Auger; 22. Mounting plate; 23. Motor; 24. Feed inlet; 25. Feed hopper; 26. Discharge pipe; 27. Second gear; 28. Ball valve; 29. Base; 30. Fixed plate. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model. Specific embodiment one

[0029] Please refer to Figures 1-5, the utility model relates to a feeding mechanism special for a biomass boiler, which comprises a feeding pipe 1; a support frame 2 is fixedly connected to the peripheral side of the feeding pipe 1, a heat dissipation component 3 is arranged on the support frame 2, the heat dissipation component 3 comprises an L-shaped plate 4 fixedly connected to the support frame 2, a straight plate 5 is fixedly connected to the side surface of the L-shaped plate 4, a rotating shaft 6 is rotatably connected to the side surface of the straight plate 5, a first gear 7 is fixedly connected to the end of the rotating shaft 6, a matching shaft 8 is fixedly connected to an eccentric position on the side surface of the first gear 7, two connecting rods 9 are symmetrically and fixedly connected to the side surface of the straight plate 5, connecting sleeves 10 are fixedly connected to the ends of the two connecting rods 9, sliding rods 11 are slidably arranged in the two connecting sleeves 10, a matching sleeve 12 is fixedly connected between the two sliding rods 11, a cooling component 13 is arranged in the heat dissipation component 3, the cooling component 13 comprises two piston barrels 14, liquid inlet pipes 15 are fixedly connected to the peripheral sides of the two piston barrels 14, valves 16 are arranged on the liquid inlet pipes 15, piston plates 17 are slidably arranged in the piston barrels 14, the two piston plates 17 are respectively fixedly connected to the corresponding sliding rods 11, liquid outlet pipes 18 are fixedly connected to the peripheral sides of the two piston barrels 14, and an annular heat dissipation pipe 19 is fixedly connected between the two liquid outlet pipes 18.

[0030] The operation process of this embodiment is as follows: during the feeding process of the biomass boiler, the first gear 7 rotates, the first gear 7 drives the matching shaft 8 to rotate, the matching shaft 8 cooperates with the matching sleeve 12, and the connecting sleeve 10 limits the sliding rod 11, so that the rotation of the first gear 7 can drive the two sliding rods 11 to move reciprocally. After filling the two piston barrels 14 with the coolant through the liquid inlet pipe 15, the valve 16 is closed. When the two sliding rods 11 move towards one side, the sliding rod 11 drives the piston plate 17 to move, and the coolant in one piston barrel 14 is input into the other piston barrel 14 through the liquid outlet pipe 18 and the annular heat dissipation pipe 19. Conversely, when moving towards the other side, the coolant is pumped back. During the feeding process of the biomass boiler using the feeding device, since the temperature of the boiler is too high, heat exchange will occur to the feeding device. When the temperature is too high, it is very easy to ignite the unfed fuel through the feeding device, causing a fire. By repeatedly sucking the coolant, the coolant continuously moves in the annular heat dissipation pipe 19, which can reduce the temperature of the discharge pipe 26 part, thereby reducing the risk of backfire. Specific Embodiment Two

[0032] Please refer to Figures 2-4, on the basis of the first specific embodiment, a mounting plate 22 is fixedly connected to the end of the feeding pipe 1. A feeding shaft 20 is rotatably connected through one side surface of the mounting plate 22. A auger 21 is arranged on the feeding shaft 20. A motor 23 is bolted to the other side surface of the mounting plate 22. The output end of the motor 23 is fixedly connected to the feeding shaft 20. A feeding port 24 is formed in the circumferential side surface of the feeding pipe 1. A feeding hopper 25 communicated with the feeding pipe is fixedly connected to the circumferential side surface of the feeding pipe 1. The feeding shaft 20 is rotatably connected through the feeding pipe 1. A discharge pipe 26 is fixedly connected to the bottom surface of the feeding pipe 1. A second gear 27 is fixedly connected to the end of the feeding shaft 20. The second gear 27 meshes with the first gear 7.

[0033] The operation process of this embodiment is as follows: By putting the material to be transported into the feeding hopper 25, the fuel enters the feeding pipe 1 through the feeding hopper 25. The feeding shaft 20 is driven by the motor 23 to rotate. The feeding shaft 20 drives the auger 21 to convey the material in the feeding pipe 1. The material is pushed to the discharge pipe 26 and discharged. Through the cooperation between the motor 23 and the auger 21, the biomass boiler can be evenly fed, improving the stability of the device. And by driving the first gear 7 to rotate through the second gear 27, the energy loss of driving the first gear 7 can be saved. Specific Embodiment Three

[0035] Please refer to Figures 1-2 , on the basis of the first specific embodiment and the second specific embodiment, a ball valve 28 is arranged on the discharge pipe 26. The discharge pipe 26 is in mutual contact with the annular radiating pipe 19. Two bases 29 are symmetrically and fixedly connected to the bottom surface of the support frame 2. A fixing plate 30 is fixedly connected between one base 29 and the piston barrel 14.

[0036] The operation process of this embodiment is as follows: When in use, the fixing plate 30 limits the piston barrel 14. After the feeding is completed, the ball valve 28 is timely closed. After closing the ball valve 28, the connection between the discharge pipe 26 and the boiler can be cut off, which can further improve the fire prevention performance of the device.

[0037] In the description of this specification, the description with reference to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not elaborate all the details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. This specification selects and

[0038] These embodiments are specifically described to better explain the principles and practical applications of the present utility model, so that those skilled in the art can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A feeding mechanism for a biomass boiler, comprising a feeding pipe (1); characterized in that: The feed pipe (1) is fixedly connected to a support frame (2) on its circumferential side, a heat dissipation assembly (3) is provided on the support frame (2), the heat dissipation assembly (3) comprises an L-shaped plate (4) fixedly connected to the support frame (2), and a straight plate (5) is fixedly connected to the side of the L-shaped plate (4); The side of the straight plate (5) is rotatably connected to a rotating shaft (6), the end of the rotating shaft (6) is fixedly connected to a first gear (7), the side of the first gear (7) is fixedly connected to a matching shaft (8) at an eccentric position, the side of the straight plate (5) is symmetrically fixedly connected to two connecting rods (9), the ends of the two connecting rods (9) are fixedly connected to connecting sleeves (10), the two connecting sleeves (10) are slidably provided with sliding rods (11), and a matching sleeve (12) is fixedly connected between the two sliding rods (11), and a cooling element (13) is provided in the heat dissipation assembly (3).

2. A biomass boiler dedicated feeding mechanism according to claim 1, characterized in that: The cooling element (13) comprises two piston barrels (14), the circumferential sides of the two piston barrels (14) are fixedly connected to a liquid inlet pipe (15), the liquid inlet pipe (15) is provided with a valve (16), and a piston plate (17) is slidably provided in the piston barrels (14), and the two piston plates (17) are respectively fixedly connected to corresponding sliding rods (11).

3. A biomass boiler dedicated feeding mechanism according to claim 2, characterized in that: Liquid outlet pipes (18) are fixedly connected to the circumferential sides of the two piston barrels (14), and an annular heat dissipation pipe (19) is fixedly connected between the two liquid outlet pipes (18).

4. The special feeding mechanism for biomass boiler according to claim 1, characterized in that: The end of the feeding pipe (1) is fixedly connected to a mounting plate (22), a feeding shaft (20) is rotatably connected to a side surface of the mounting plate (22), an auger (21) is provided on the feeding shaft (20), and the other side surface of the mounting plate (22) is bolted to a motor (23), and an output end of the motor (23) is fixedly connected to the feeding shaft (20).

5. A biomass boiler dedicated feeding mechanism according to claim 4, characterized in that: A feed port (24) is provided on the side surface of the feed pipe (1), a feed hopper (25) which is connected to the feed pipe is fixedly connected to the side surface of the feed pipe (1), and the feed shaft (20) is rotatably connected to the feed pipe (1).

6. A biomass boiler dedicated feeding mechanism according to claim 5, characterized in that: A discharge pipe (26) is fixedly connected to the bottom surface of the feeding pipe (1), and a second gear (27) is fixedly connected to the end of the feeding shaft (20), and the second gear (27) is meshed with the first gear (7).

7. A biomass boiler dedicated feeding mechanism according to claim 6, characterized in that: The discharge pipe (26) is provided with a ball valve (28), and the discharge pipe (26) and the annular heat dissipation pipe (19) are in contact with each other.

8. The special feeding mechanism for biomass boiler according to claim 2, characterized in that: Two bases (29) are symmetrically and fixedly connected to the bottom surface of the support frame (2), and a fixing plate (30) is fixedly connected between one of the bases (29) and the piston barrel (14).

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