Auger feeding device of biomass gasifier

Abstract

The utility model discloses an auger feeding device of a biomass gasification furnace, which belongs to the technical field of biomass gasification furnaces and comprises a bottom plate, a gasification furnace body is arranged at the top of the bottom plate, a vertical column is arranged at the top of the bottom plate, a conveying cylinder is fixedly connected to the top end of the vertical column, and a material guide cylinder is fixedly connected to the top end of the bottom end of the conveying cylinder. According to the biomass fuel conveying device, biomass fuel placed in the feeding box is crushed through the crushing cutter, meanwhile, the crushed fuel in the feeding box is guided through the first spiral auger, so that the biomass fuel in the feeding box smoothly enters the conveying barrel from the material guiding barrel, the second spiral auger is driven by the second motor to rotate, and the biomass fuel is conveyed into the conveying barrel through the conveying barrel. The second spiral auger is used for driving the fuel to smoothly move upwards in the conveying barrel, so that the fuel enters the discharging barrel and enters the gasification furnace body from the discharging barrel, and smooth feeding of the biomass fuel is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of biomass gasification furnace technology, and more specifically, to a screw conveyor feeding device for a biomass gasification furnace. Background Technology

[0002] A biomass gasifier is a gasifier that produces straw gas. The straw gas produced by a biomass gasifier is a green new energy source with strong vitality. Since the raw materials for biogas production are crop straw, forest waste, edible fungus residue, cattle and sheep manure, and all combustible materials, it is an inexhaustible renewable resource. During the use of a biomass gasifier, materials from lower levels need to be fed into the gasifier.

[0003] A search revealed that utility model patent CN216236871U discloses a biomass gasification furnace with convenient feeding, including a base, a biomass gasification furnace body fixedly installed on the left side of the top of the base, a transition box connected to the top of the biomass gasification furnace body, a second solenoid valve installed at the bottom of the inner cavity of the transition box, and a crushing box fixedly installed on the right side of the top of the base via a bracket. Second stepper motors are fixedly installed on the front and rear sides of the right side of the crushing box via mounting seats. This patent includes a base, a first stepper motor, a guide pipe, a crushing roller, a second stepper motor, a metal pipe, a dust collection plate, a feed hopper, a guide plate, a conveyor box, an auger, a discharge pipe, a first solenoid valve, a transition box, a second solenoid valve, a biomass gasification furnace body, a dust collector, a dust collection box, and a crushing box. It solves the problems of traditional biomass gasification furnaces being inconvenient for feeding, where fire and dust may be ejected during feeding, and the furnace temperature may dissipate, with dust affecting the surrounding environment.

[0004] However, the above patent still has the following shortcomings: the material in the feed hopper is not easy to smoothly enter the conveying box from the guide pipe by gravity alone, and the material in the guide pipe is not easy to be discharged from the discharge pipe, which is prone to blockage. Therefore, we propose a screw conveyor feeding device for a biomass gasification furnace. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide a screw conveyor feeding device for a biomass gasification furnace.

[0006] To solve the above problems, the present invention adopts the following technical solution:

[0007] A screw conveyor feeding device for a biomass gasification furnace includes a base plate, a gasification furnace body on the top of the base plate, a column on the top of the base plate, a conveying cylinder fixedly connected to the top of the column, a guide cylinder fixedly connected to the top of the bottom of the conveying cylinder, a feeding box fixedly connected to the top of the guide cylinder, a discharge cylinder fixedly connected to the bottom of the top of the conveying cylinder, the bottom of the discharge cylinder extending into the inner cavity of the gasification furnace body, a discharge dispersing mechanism on the discharge cylinder, a second motor fixedly installed at the bottom of the conveying cylinder, the output shaft of the second motor extending into the inner cavity of the conveying cylinder and fixedly connected to a second screw conveyor, a first motor fixedly installed on the top surface of the feeding box, the output shaft of the first motor extending into the inner cavity of the feeding box and fixedly connected to a transmission rod, the bottom of the transmission rod extending into the inner cavity of the guide cylinder and fixedly connected to a first screw conveyor, and multiple crushing blades fixedly connected to the side of the transmission rod and located within the inner cavity of the feeding box.

[0008] As a preferred embodiment of this utility model, the feeding and dispersing mechanism includes a third motor fixedly installed at the top of the feeding cylinder, the output shaft of the third motor extending into the inner cavity of the feeding cylinder and fixedly connected to a third spiral auger, the side of the third spiral auger fitting against the inner wall of the feeding cylinder, the bottom end of the rotating shaft of the third spiral auger extending to the bottom of the feeding cylinder and fixedly connected to a conical column, and multiple dispersing plates fixedly connected to the side of the conical column.

[0009] As a preferred embodiment of this utility model, a power supply box is fixedly connected to the top surface of the base plate, a door is hinged to the front of the power supply box, and a storage battery is installed inside the power supply box.

[0010] As a preferred embodiment of this utility model, a mounting base is fixedly connected to the side of the column, and a control panel is fixedly mounted on the mounting base.

[0011] As a preferred embodiment of this utility model, a box cover is hinged to the side of the top surface of the feed box.

[0012] In a preferred embodiment of this utility model, the side of the second spiral auger is in contact with the inner wall of the conveying cylinder, and the side of the first spiral auger is in contact with the inner wall of the guide cylinder.

[0013] Compared with existing technologies, the advantages of this utility model are:

[0014] (1) In this utility model, the biomass fuel placed in the feed box is crushed by the crushing knife. At the same time, the crushed fuel in the feed box is guided by the first spiral auger, so that the biomass fuel in the feed box can smoothly enter the conveying cylinder from the guide cylinder. The second motor drives the second spiral auger to rotate, and the second spiral auger drives the fuel to move smoothly upward in the conveying cylinder, so that the fuel enters the discharge cylinder and enters the gasification furnace body from the discharge cylinder, ensuring smooth feeding of biomass fuel.

[0015] (2) In this utility model, by using the third motor, the third spiral auger, the conical column and the dispersing plate together, when the biomass fuel enters the feeding cylinder from the conveying cylinder, the third motor drives the third spiral auger and the dispersing plate to rotate. The rotation of the third spiral auger makes the fuel entering the feeding cylinder move smoothly downward, so that the fuel can smoothly enter the gasification furnace body, avoid the fuel from being blocked in the feeding cylinder, and the falling biomass fuel is dispersed by the dispersing plate, ensuring the quality and efficiency of biomass fuel combustion. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the conveyor cylinder of this utility model;

[0018] Figure 3 This is a cross-sectional view of the feed cylinder of this utility model.

[0019] Explanation of the labels in the diagram:

[0020] 1. Base plate; 2. Column; 3. Conveying cylinder; 4. Feeding cylinder; 5. Guide cylinder; 6. Feed box; 7. Gasification furnace body; 8. Feeding and dispersing mechanism; 9. Second motor; 10. Second auger; 11. First motor; 12. Transmission rod; 13. Crushing blade; 14. First auger; 15. Third motor; 16. Third auger; 17. Conical column; 18. Dispersing plate; 19. Power supply box; 20. Box door; 21. Battery; 22. Mounting base; 23. Control panel; 24. Box cover. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Example:

[0025] Please see Figure 1-3 A screw conveyor feeding device for a biomass gasification furnace includes a base plate 1, a gasification furnace body 7 mounted on top of the base plate 1, a column 2 mounted on top of the base plate 1, a conveying cylinder 3 fixedly connected to the top of the column 2, a guide cylinder 5 fixedly connected to the top of the bottom end of the conveying cylinder 3, a feed box 6 fixedly connected to the top of the guide cylinder 5, and a discharge cylinder 4 fixedly connected to the bottom of the top end of the conveying cylinder 3. The bottom end of the discharge cylinder 4 extends into the inner cavity of the gasification furnace body 7, and a discharge dispersing mechanism 8 is mounted on the discharge cylinder 4. A second motor 9 is fixedly installed at the bottom. The output shaft of the second motor 9 extends into the inner cavity of the conveying cylinder 3 and is fixedly connected to a second spiral auger 10. A first motor 11 is fixedly installed on the top surface of the feed box 6. The output shaft of the first motor 11 extends into the inner cavity of the feed box 6 and is fixedly connected to a transmission rod 12. The bottom end of the transmission rod 12 extends into the inner cavity of the guide cylinder 5 and is fixedly connected to a first spiral auger 14. Multiple crushing blades 13 are fixedly connected to the side of the transmission rod 12 and located in the inner cavity of the feed box 6.

[0026] In this embodiment, when the first motor 11 drives the transmission rod 12, the crushing blade 13, and the first spiral auger 14 to rotate counterclockwise, the rotation direction of the first spiral auger 14 causes the material in the feed box 6 to not be discharged by the first spiral auger 14. The crushing blade 13 crushes the material in the feed box 6. When the first motor 11 drives the transmission rod 12 and the first spiral auger 14 to rotate clockwise, the rotation direction of the first spiral auger 14 allows the material in the feed box 6 to be moved in the guide cylinder 5 by the first spiral auger 14 so that the material can enter the conveying cylinder 3.

[0027] For details, please refer to Figures 1 to 3 The feeding and dispersing mechanism 8 includes a third motor 15 fixedly installed on the top of the feeding cylinder 4. The output shaft of the third motor 15 extends into the inner cavity of the feeding cylinder 4 and is fixedly connected to a third spiral auger 16. The side of the third spiral auger 16 is in contact with the inner wall of the feeding cylinder 4. The bottom end of the rotating shaft of the third spiral auger 16 extends into the bottom of the feeding cylinder 4 and is fixedly connected to a conical column 17. Multiple dispersing plates 18 are fixedly connected to the side of the conical column 17.

[0028] In this embodiment, the biomass fuel falling into the gasification furnace body 7 is broken up by the rotation of the dispersing plate 18, so as to ensure the quality and efficiency of combustion.

[0029] For details, please refer to Figures 1 to 3 A power supply box 19 is fixedly connected to the top surface of the base plate 1. A door 20 is hinged to the front of the power supply box 19. A storage battery 21 is installed inside the power supply box 19.

[0030] In this embodiment, the storage battery 21 is used to power the first motor 11, the second motor 9, the third motor 15, and the control panel 23.

[0031] For details, please refer to Figure 1 A mounting base 22 is fixedly connected to the side of the column 2, and a control panel 23 is fixedly installed on the mounting base 22.

[0032] In this embodiment, the device is controlled via control panel 23.

[0033] For details, please refer to Figure 2 The top side of the feed box 6 is hinged with a box cover 24.

[0034] In this embodiment, biomass fuel is placed into the inner cavity of the feed box 6 by opening the box cover 24.

[0035] For details, please refer to Figure 3 The side of the second spiral auger 10 is in contact with the inner wall of the conveying cylinder 3, and the side of the first spiral auger 14 is in contact with the inner wall of the guide cylinder 5.

[0036] In this embodiment, the second spiral auger 10 is ensured to drive the biomass fuel to move smoothly in the conveying cylinder 3, while the first spiral auger 14 is ensured to drive the biomass fuel from the feed cylinder 5 into the conveying cylinder 3.

[0037] Working principle: In use, firstly, start the first motor 11 to drive the transmission rod 12, crusher 13, and first auger 14 to rotate counterclockwise, and open the box cover 24 to put the biomass fuel into the inner cavity of the feed box 6. At this time, the reverse rotation of the first auger 14 will prevent the fuel in the feed box 6 from entering the conveying cylinder 3 from the guide cylinder 5. At the same time, the crusher 13 is used to crush the biomass fuel. Then, start the first motor 11 to drive the transmission rod 12, crusher 13, and first auger 14 to rotate clockwise. The clockwise rotation of the first auger 14 guides the fuel in the feed box 6 from the guide cylinder 5 to the conveying cylinder 3. The second motor 9 is started to drive the second auger 10 to rotate, which in turn drives the fuel in the conveying cylinder 3 to move upward, so that the biomass fuel enters the feeding cylinder 4. Finally, the third motor 15 is started to drive the third auger 16, the conical column 17 and the dispersing plate 18 to rotate, which in turn drives the biomass fuel in the feeding cylinder 4 to move downward, so that the biomass fuel enters the gasifier body 7. At the same time, the rotation of the dispersing plate 18 is used to disperse the biomass fuel entering the gasifier body 7 to ensure the quality of combustion.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A screw feeder for a biomass gasifier comprising a base plate (1) characterised in that: The top of the bottom plate (1) is provided with a gasification furnace body (7), the top of the bottom plate (1) is provided with a column (2), the top end of the column (2) is fixedly connected with a conveying cylinder (3), the top of the bottom end of the conveying cylinder (3) is fixedly connected with a guide cylinder (5), the top end of the guide cylinder (5) is fixedly connected with a feeding box (6), the bottom of the top end of the conveying cylinder (3) is fixedly connected with a discharging cylinder (4), the bottom end of the discharging cylinder (4) extends to the inner cavity of the gasification furnace body (7), the discharging cylinder (4) is provided with a discharging dispersing mechanism (8), the bottom end of the conveying cylinder (3) is fixedly installed with a second motor (9), the output shaft of the second motor (9) extends to the inner cavity of the conveying cylinder (3) and is fixedly connected with a second spiral auger (10), the top surface of the feeding box (6) is fixedly installed with a first motor (11), the output shaft of the first motor (11) extends to the inner cavity of the feeding box (6) and is fixedly connected with a transmission rod (12), the bottom end of the transmission rod (12) extends to the inner cavity of the guide cylinder (5) and is fixedly connected with a first spiral auger (14), a plurality of crushing knives (13) are fixedly connected to the side surface of the transmission rod (12) and located in the inner cavity of the feeding box (6).

2. A screw feeder for a biomass gasifier as claimed in claim 1, wherein: The discharging dispersing mechanism (8) comprises a third motor (15) fixedly installed on the top of the discharging cylinder (4), the output shaft of the third motor (15) extends to the inner cavity of the discharging cylinder (4) and is fixedly connected with a third spiral auger (16), the side surface of the third spiral auger (16) is in close contact with the inner wall of the discharging cylinder (4), the bottom end of the rotating shaft of the third spiral auger (16) extends to the bottom of the discharging cylinder (4) and is fixedly connected with a conical column (17), and a plurality of dispersing plates (18) are fixedly connected to the side surface of the conical column (17).

3. A screw feeder for a biomass gasifier as claimed in claim 1, wherein: The top surface of the bottom plate (1) is fixedly connected with a power supply box (19), the front surface of the power supply box (19) is hingedly connected with a box door (20), and the inner cavity of the power supply box (19) is provided with a storage battery (21).

4. The auger feed apparatus of a biomass gasifier according to claim 1, wherein: The side surface of the column (2) is fixedly connected with a mounting seat (22), and the mounting seat (22) is fixedly installed with a control panel (23).

5. The auger feed apparatus of a biomass gasifier according to claim 1, wherein: The side of the top surface of the feeding box (6) is hingedly connected with a box cover (24).

6. A screw feeder for a biomass gasifier according to claim 1, wherein: The side surface of the second spiral auger (10) is in close contact with the inner wall of the conveying cylinder (3), and the side surface of the first spiral auger (14) is in close contact with the inner wall of the guide cylinder (5).

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