Biomass pellet fuel drying device capable of avoiding accumulation

Abstract

The utility model discloses a biomass pellet fuel drying device capable of avoiding accumulation in the technical field of biomass pellet fuel drying. The biomass pellet fuel drying device comprises a drying machine body. A material dispersing assembly is centrally fixed to the top of an inner cavity of the drying machine body through a fixing rod and comprises a fixed material barrel, a movable material barrel, a material guiding circular truncated cone and a driving assembly. The bottom of the fixed charging barrel is coaxially and rotatably provided with a movable charging barrel, and the bottom of the movable charging barrel is coaxially welded with a guide circular truncated cone. A plurality of first blanking ports and second blanking ports are respectively formed in the side walls of the fixed charging barrel and the movable charging barrel, and when the driving assembly drives the movable charging barrel to rotate around the axis, the first blanking ports and the second blanking ports form material channels which are intermittently aligned. A material guiding check ring is arranged on the outer side of the fixed charging barrel, and a spiral material guiding belt is arranged on the lower portion of the inner wall of the drying machine body. The drying device can avoid material accumulation, improve the drying effect and improve the drying efficiency at the same time.

Description

Technical Field

[0001] This utility model relates to the field of biomass pellet fuel drying technology, and in particular to a biomass pellet fuel drying device that avoids accumulation. Background Technology

[0002] In existing biomass pellet fuel drying equipment, material tends to accumulate within the unit during operation, leading to uneven drying and affecting the drying effect. Traditional equipment typically uses a single feeding method, resulting in a limited material flow path that fails to effectively disperse the material and easily causes localized accumulation. Furthermore, material is prone to clogging at the feeding inlet, further exacerbating the accumulation problem. Therefore, there is an urgent need for a drying device that can avoid accumulation and improve drying efficiency. Utility Model Content

[0003] The main objective of this invention is to provide a biomass pellet fuel drying device that avoids accumulation, thereby solving the problems mentioned in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A biomass pellet fuel drying device to prevent accumulation includes a dryer body, with a feed hopper and a discharge pipe connected to the top and bottom of the dryer body, respectively. A material dispersion component is centrally fixed at the top of the dryer body's inner cavity via a fixing rod. The material dispersion component includes a fixed cylinder, a movable cylinder, a guide frustum, and a drive assembly. The movable cylinder is coaxially rotatably mounted at the bottom of the fixed cylinder, and a guide frustum is coaxially welded to the bottom of the movable cylinder. Multiple first and second discharge ports are respectively provided on the side walls of the fixed and movable cylinders. When the drive assembly drives the movable cylinder to rotate around its axis, the first and second discharge ports form intermittently aligned material channels. A downwardly inclined guide baffle is provided on the outer side of the fixed cylinder, and a downwardly inclined spiral guide belt is provided on the lower part of the inner wall of the dryer body.

[0006] Furthermore, the drive assembly includes a drive motor, a coupling, and a rotating shaft. The drive motor is coaxially mounted on the top outer wall of the dryer body. The output shaft of the drive motor passes through the top of the dryer body and is connected to the rotating shaft via the coupling. The lower end of the rotating shaft is fixedly connected to the center of the guide frustum.

[0007] Furthermore, a material circulation assembly is provided on the outside of the dryer body. The material circulation assembly includes a first screw conveyor, a second screw conveyor and a connecting pipe connected end to end. The feed end of the first screw conveyor is connected to the upper end of the discharge pipe, and the end of the connecting pipe is inserted into the fixed material cylinder.

[0008] Furthermore, multiple omnidirectional ball bearings are distributed circumferentially at the bottom of the movable material cylinder. A vibration motor is installed inside the guide cylinder, and the vibration motor is fixedly connected to the inner wall of the guide cylinder.

[0009] Furthermore, both the fixed and movable material cylinders are cylindrical structures with open tops. A control valve is installed on the discharge pipe to control the discharge speed.

[0010] This invention also includes other components that enable the biomass pellet fuel drying device to operate normally, and these devices or components all employ conventional techniques in the art. Furthermore, devices and components not limited in this invention all employ conventional techniques in the art, such as the first screw conveyor, second screw conveyor, vibrating motor, and drive motor mentioned in this application. In specific implementation, appropriate equipment or component models can be selected according to the specific working scenario.

[0011] The working principle of this invention is as follows: Biomass pellet fuel to be dried is added from the feed hopper to the fixed cylinder, and the material first falls into the movable cylinder. The drive motor drives the movable cylinder to rotate around its axis through a coupling and a rotating shaft, causing the first discharge port on the fixed cylinder to intermittently align with the second discharge port on the movable cylinder, forming a material channel. The material falls from the material channel in different directions, passes through the guide ring on the outside of the fixed cylinder and the spiral guide belt on the lower part of the inner wall of the dryer body, and falls evenly into the drying area.

[0012] During the drying process, the control valve remains closed. The material circulation assembly uses the first and second screw conveyors to re-transport the material from the bottom of the dryer body back to the fixed cylinder, reducing material accumulation. The vibrating motor of the guide platform helps the material fall smoothly along the side of the guide platform, while the universal ball bearings at the bottom of the movable cylinder provide support for the movable cylinder, reducing friction and ensuring smooth rotation of the movable cylinder. This prevents material from clogging at the discharge port, ensuring uniform material distribution and thorough drying.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. Prevent material accumulation: Through the intermittent feeding design of the material dispersion component, the material falls evenly from different directions, avoiding local accumulation. The material circulation component re-feeds the dried material back to the fixed cylinder, further mitigating accumulation and ensuring a continuous and stable drying process.

[0015] 2. Improve drying effect and increase drying efficiency: The vibrating motor assists the material to fall smoothly, and the guide ring and spiral guide belt guide the material to be evenly distributed in the drying area, extending the residence time of the material in the drying area and significantly improving the drying effect and efficiency. Attached Figure Description

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

[0017] Figure 2 for Figure 1 Enlarged view of section A.

[0018] Figure 3 This is a schematic diagram of the structure of the fixed material cylinder of this utility model.

[0019] Figure 4 This is a schematic diagram of the structure of the movable material cylinder of this utility model.

[0020] In the diagram: 1. Dryer body; 2. Fixed rod; 3. Fixed material cylinder; 4. Movable material cylinder; 5. Guide frustum; 6. Drive motor; 7. Guide retaining ring; 8. Spiral guide belt; 9. Discharge pipe; 10. Control valve; 11. First spiral conveyor; 12. Second spiral conveyor; 13. Connecting pipe; 14. Feed hopper; 15. First discharge port; 16. Second discharge port; 17. Universal ball bearing; 18. Vibration motor. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0022] Example:

[0023] like Figures 1-4 As shown, a biomass pellet fuel drying device to avoid accumulation includes a dryer body 1, with a feed hopper 14 and a discharge pipe 9 connected to the top and bottom of the dryer body 1, respectively. A material dispersion component is centrally fixed to the top of the inner cavity of the dryer body 1 via a fixing rod 2. The material dispersion component includes a fixed material cylinder 3, a movable material cylinder 4, a guide frustum 5, and a drive component. The movable material cylinder 4 is coaxially rotatably mounted at the bottom of the fixed material cylinder 3, and the guide frustum 5 is coaxially welded to the bottom of the movable material cylinder 4. Multiple first discharge ports 15 and second discharge ports 16 are respectively opened on the side walls of the fixed material cylinder 3 and the movable material cylinder 4. When the drive component drives the movable material cylinder 4 to rotate around its axis, the first discharge ports 15 and the second discharge ports 16 form intermittently aligned material channels. A downwardly inclined guide baffle 7 is provided on the outer side of the fixed material cylinder 3, and a downwardly inclined spiral guide belt 8 is provided on the lower part of the inner wall of the dryer body 1.

[0024] Specifically, the drive assembly includes a drive motor 6, a coupling, and a rotating shaft. The drive motor 6 is coaxially mounted on the top outer wall of the dryer body 1. The output shaft of the drive motor 6 passes through the top of the dryer body 1 and is connected to the rotating shaft via the coupling. The lower end of the rotating shaft is fixedly connected to the center of the guide frustum 5.

[0025] In addition, multiple universal ball bearings 17 are distributed circumferentially at the bottom of the movable material cylinder 4. A vibrating motor 18 is installed inside the guide frustum 5, and the vibrating motor 18 is fixedly connected to the inner wall of the guide frustum 5. A control valve 10 for controlling the discharge speed is installed on the discharge pipe 9. A material circulation assembly is installed on the outside of the dryer body 1.

[0026] Specifically, the material circulation assembly includes a first screw conveyor 11, a second screw conveyor 12, and a connecting pipe 13 connected end to end. The inlet end of the first screw conveyor 11 is connected to the upper end of the outlet pipe 9, and the end of the connecting pipe 13 is inserted into the fixed material cylinder 3. Both the fixed material cylinder 3 and the movable material cylinder 4 are cylindrical structures with open tops.

[0027] The working principle of this utility model's biomass pellet fuel drying device to avoid accumulation is as follows: Biomass pellet fuel to be dried is added from the feed hopper 14 to the fixed material cylinder 3, and the material first falls into the movable material cylinder 4. The drive motor 6 drives the movable material cylinder 4 to rotate around its axis through a coupling and a rotating shaft, so that the first discharge port 15 on the fixed material cylinder 3 and the second discharge port 16 on the movable material cylinder 4 are intermittently aligned, forming a material channel. The material falls from the material channel in different directions, passes through the guide ring 7 on the outside of the fixed material cylinder 3 and the spiral guide belt 8 on the lower part of the inner wall of the dryer body 1, and falls evenly into the drying area.

[0028] During the drying process, control valve 10 remains closed. The material circulation assembly, via the first screw conveyor 11 and the second screw conveyor 12, re-transports the material from the bottom of the dryer body 1 back to the fixed material cylinder 3, reducing material accumulation. The vibrating motor 18 of the guide platform 5 helps the material fall smoothly along the side of the guide platform 5, while the universal ball bearings 17 at the bottom of the movable material cylinder 4 provide support for the movable material cylinder 4, reducing friction and ensuring smooth rotation of the movable material cylinder 4. This prevents material from clogging at the discharge port, ensuring uniform material distribution and thorough drying.

[0029] The above embodiments are merely descriptions of preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope of the present utility model.

Claims

1. A biomass particle fuel drying device avoiding accumulation, comprising a drying machine body (1), the top and bottom of which are respectively communicated with a feeding hopper (14) and a discharging pipe (9), characterized in that: The top of the inner cavity of the drying machine body (1) is centrally fixed with a material dispersion assembly through a fixing rod (2), the material dispersion assembly comprises a fixed material cylinder (3), a movable material cylinder (4), a material guiding circular table (5) and a driving assembly; the bottom of the fixed material cylinder (3) is coaxially rotatably installed with the movable material cylinder (4), and the bottom of the movable material cylinder (4) is coaxially welded with the material guiding circular table (5); the sidewalls of the fixed material cylinder (3) and the movable material cylinder (4) are respectively provided with a plurality of first material falling ports (15) and second material falling ports (16), when the movable material cylinder (4) is driven by the driving assembly to rotate around the axis, the first material falling ports (15) and the second material falling ports (16) form intermittent alignment material channels; the outer side of the fixed material cylinder (3) is provided with a downwardly inclined material guiding baffle (7), and the lower part of the inner wall of the drying machine body (1) is provided with a downwardly inclined spiral material guiding belt (8).

2. The biomass pellet fuel drying apparatus for avoiding accumulation according to claim 1, characterized by: The driving assembly comprises a driving motor (6), a shaft coupling and a rotating shaft, the driving motor (6) is coaxially arranged on the top outer wall of the drying machine body (1), the output shaft of the driving motor (6) penetrates the top of the drying machine body (1) and is connected with the rotating shaft through the shaft coupling, and the lower end of the rotating shaft is fixedly connected to the center of the material guiding circular table (5).

3. The biomass pellet fuel drying apparatus for avoiding accumulation according to claim 1, characterized by: The outer side of the drying machine body (1) is provided with a material circulating assembly, the material circulating assembly comprises a first spiral conveyor (11), a second spiral conveyor (12) and a connecting pipe (13) which are connected in series, the feeding end of the first spiral conveyor (11) is connected with the upper end of the discharging pipe (9), and the tail end of the connecting pipe (13) is inserted into the fixed material cylinder (3).

4. The biomass pellet fuel drying apparatus for avoiding accumulation according to claim 1, characterized by: A plurality of universal ball bearings (17) are circumferentially distributed on the bottom of the movable material cylinder (4); the inner cavity of the material guiding circular table (5) is provided with a vibration motor (18), and the vibration motor (18) is fixedly connected with the inner wall of the material guiding circular table (5).

5. The biomass pellet fuel drying apparatus for avoiding accumulation according to claim 1, characterized by: The fixed material cylinder (3) and the movable material cylinder (4) are both cylindrical cylinder structures with open top ends; the discharging pipe (9) is provided with a control valve (10) for controlling the discharging speed.

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