Biogas residue aerobic composting device
By combining flexible spiral blades and a pneumatic conveying mechanism, the problems of uneven feeding and clogging in the aerobic composting device for biogas residue were solved, achieving efficient and uniform feeding and oxygenation mixing, thereby improving the quality of biogas residue composting and the service life of the equipment.
Patent Information
- Application Number
- CN202423017948.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-09
AI Technical Summary
Biogas residue has high moisture content and strong viscosity, which makes the material easy to stick together and accumulate unevenly. The irregular particle size also affects the aeration and microbial activity of composting, making the equipment prone to clogging, difficult to operate, and resulting in low efficiency of the conveying system.
The system employs a combination of flexible spiral blades and a pneumatic conveying mechanism. The flexible spiral blades agitate the biogas residue to prevent it from sticking together, while the pneumatic conveying mechanism assists in feeding. Furthermore, the system uses a motor and stirring blades to introduce oxygen and agitate the residue, thereby improving the quality and efficiency of feeding.
It effectively prevents biogas residue from sticking and clogging, improves the quality and efficiency of feeding, ensures uniform distribution of biogas residue, enhances the aeration and microbial activity of composting, and extends the service life of equipment.
Smart Images

Figure CN223534997U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of biogas residue recycling technology, and in particular to an aerobic composting device for biogas residue. Background Technology
[0002] Aerobic composting of biogas residue requires feeding the biogas residue into an equipment container for processing. However, the high moisture content and strong viscosity of biogas residue cause it to easily adhere, accumulate unevenly, and clog the conveying equipment. In addition, the irregular particle size and large differences in physical properties of biogas residue make it difficult to distribute the material evenly during the feeding process, affecting the aeration and microbial activity of the compost. Wear and corrosion of the equipment also increase the difficulty of operation, especially after long-term use, which can easily lead to a decrease in the efficiency of the conveying system. To address these issues, a novel aerobic composting device for biogas residue is provided. Utility Model Content
[0003] The purpose of this invention is to provide an aerobic composting device for biogas residue, which can solve the problem of inconvenient material feeding in aerobic composting devices for biogas residue.
[0004] To achieve the above objectives, this utility model provides the following technical solution: an aerobic composting device for biogas residue, comprising a composting kettle, a kettle lid, a feeding mechanism, and a pneumatic conveying mechanism. The kettle lid is detachably located at the top opening of the composting kettle and can be closed. The feeding mechanism is located on the side of the composting kettle and connected to a position on the composting kettle near the top opening. The feeding mechanism is used to transport biogas residue to be composted into the composting kettle. The pneumatic conveying mechanism is located at a position away from the composting kettle by the feeding mechanism and is used to assist the feeding mechanism in transporting biogas residue into the composting kettle and to oxygenate the biogas residue. The surface of the kettle lid has ventilation holes, and a filter screen is embedded in the ventilation holes on the kettle lid. A baffle that can close the ventilation holes is movably connected to the surface of the kettle lid.
[0005] Preferably, the feeding mechanism includes a conveying hose, a feeding hopper, an elastic spiral blade, a feeding box, and a mounting cover. A feeding port is provided on the outer wall of the composting vessel near its top opening. A mounting cover is detachably installed at the feeding port on the composting vessel. A feeding box that communicates with the feeding port is connected to the mounting cover. A conveying hose that communicates with the bottom of the feeding box is connected to the bottom of the feeding box. A feeding hopper is rotatably connected to the top inner side of the feeding box and extends into the inner side of the conveying hose. An elastic spiral blade is connected to the end of the conveying hose away from the composting vessel. The feeding hopper extends into the inner side of the elastic spiral blade.
[0006] Preferably, the feeding mechanism further includes a drive motor, pulleys and a transmission belt. The outer wall of the feeding box is provided with a drive motor. The output shaft of the drive motor is equipped with a set of pulleys. The end of the feed hopper connected to the feeding box extends to the top of the feeding box and is connected to a set of pulleys. A transmission belt is sleeved between the two sets of pulleys to connect them.
[0007] Preferably, the pneumatic conveying mechanism includes an air pump and an air pipe. The air pump is installed on the outer wall of the conveying hose near the feed hopper. The output end of the air pump is connected to the air pipe. The air pipe is connected to and communicates with the conveying hose. The angle between the connection point of the air pipe and the conveying hose is less than 45°.
[0008] Preferably, a motor is installed at the top center of the composting vessel lid, and the output shaft of the motor extends to the bottom of the lid via a coupling and is connected to a mounting rod. A stirring blade is connected in a ring array on the outer wall of the mounting rod. A feeding port is provided at the top of the lid, and a sealing cover is detachably installed at the feeding port to close it. An observation window for observing the condition inside the composting vessel is embedded in the outer wall of the composting vessel.
[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: This aerobic composting device for biogas residue uses elastic spiral blades to convey and feed biogas residue. During the feeding process, the elastic spiral blades agitate the biogas residue, effectively preventing it from sticking and clogging, thus improving the feeding quality and efficiency. The pneumatic conveying mechanism can assist the feeding mechanism in pneumatically conveying the biogas residue during the feeding process. At the same time, it can also work with the motor, mounting rod, and stirring blades to introduce oxygen into the biogas residue and agitate it during the aerobic composting fermentation process, thereby improving the quality of aerobic composting. Attached Figure Description
[0010] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0011] Figure 1 This is a perspective view of the present utility model;
[0012] Figure 2 This is a diagram showing the split structure of this utility model;
[0013] Figure 3 This is an enlarged view of part A of this utility model;
[0014] Figure 4 This is an enlarged view of part B of this utility model.
[0015] Reference numerals: 1. Composting vessel; 2. Vessel lid; 3. Feeding mechanism; 31. Conveying hose; 32. Feed hopper; 33. Flexible spiral blade; 34. Feeding box; 35. Drive motor; 36. Pulley; 37. Transmission belt; 38. Mounting cover; 4. Pneumatic conveying mechanism; 41. Air pump; 42. Ventilation pipe; 5. Motor; 6. Mounting rod; 7. Agitator blades; 8. Observation window; 9. Filter screen; 10. Baffle; 11. Sealing cover. Detailed Implementation
[0016] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.
[0017] Please see Figure 1-4 This utility model provides a technical solution: an aerobic composting device for biogas residue, including a composting tank 1, a tank cover 2, a feeding mechanism 3, and a pneumatic conveying mechanism 4. The tank cover 2 is detachably located at the top opening of the composting tank 1 and can be closed. The feeding mechanism 3 is located on the side of the composting tank 1 and is connected to the composting tank 1 near the top opening. The feeding mechanism 3 is used to transport biogas residue to be composted into the composting tank 1. The pneumatic conveying mechanism 4 is located at a position away from the composting tank 1 by the feeding mechanism 3 and is used to assist the feeding mechanism 3 in transporting biogas residue into the composting tank 1 and to oxygenate the biogas residue. The surface of the tank cover 2 has ventilation holes, and a filter screen 9 is embedded in the ventilation holes of the tank cover 2. A baffle 10 that can close the ventilation holes is movably connected to the surface of the tank cover 2.
[0018] The feeding mechanism 3 includes a conveying hose 31, a feeding hopper 32, an elastic spiral blade 33, a feeding box 34, and a mounting cover 38. A feeding port is located on the outer wall of the composting vessel 1 near its top opening. A mounting cover 38 is detachably installed at the feeding port of the composting vessel 1. A feeding box 34, which communicates with the feeding port, is connected to the mounting cover 38. A conveying hose 31, communicating with the interior of the feeding box 34, is connected to the bottom of the feeding box 34. A feeding hopper 32 is rotatably connected to the top inner side of the feeding box 34 and extends into the inner side of the conveying hose 31. The end of the conveying hose 31 furthest from the composting vessel 1 is connected to... The feeding mechanism 3 includes a flexible spiral blade 33, a feed hopper 32 extending into the inner side of the flexible spiral blade 33, a drive motor 35, pulleys 36, and a transmission belt 37. The outer wall of the feeding box 34 is equipped with the drive motor 35, and a set of pulleys 36 are mounted on the output shaft of the drive motor 35. The end of the feed hopper 32 connected to the feeding box 34 extends to the top of the feeding box 34 and is connected to a set of pulleys 36. A transmission belt 37 is sleeved between the two sets of pulleys 36 to connect them. The pneumatic conveying mechanism 4 includes an air pump 41, an air pipe 42, and a conveying hose. An air pump 41 is installed on the outer wall of container 31 near the feed hopper 32. The output end of the air pump 41 is connected to an air pipe 42, which is connected to and communicates with the conveying hose 31. The angle between the connection point of the air pipe 42 and the conveying hose 31 is less than 45°. A motor 5 is installed at the center of the top of the container lid 2. The output shaft of the motor 5 extends to the bottom of the container lid 2 via a coupling and is connected to a mounting rod 6. A stirring blade 7 is arranged in a ring array on the outer wall of the mounting rod 6. A feeding port is provided at the top of the container lid 2. A stirring blade is detachably installed at the feeding port on the top of the container lid 2. The closed cover 11 and the outer wall of the composting vessel 1 are fitted with observation windows 8 for observing the inside of the composting vessel 1. The biogas residue is conveyed and fed by the elastic spiral blades 33. During the feeding process, the elastic spiral blades 33 agitate the biogas residue to effectively prevent it from sticking and clogging, thus improving the feeding quality and efficiency. The pneumatic conveying mechanism 4 can assist the feeding mechanism 3 in pneumatically conveying the biogas residue during the feeding process. It can also work with the motor 5, the mounting rod 6 and the stirring blades 7 to introduce oxygen into the biogas residue during the aerobic composting fermentation process.
[0019] Working principle: The feed hopper 32 is inserted into the accumulated biogas residue. The biogas residue is fed into the feed hopper 32. The drive motor 35 drives the elastic spiral blades 33 to rotate. The elastic spiral blades 33 transport the biogas residue into the conveying hose 31 and then into the composting kettle 1. The air pump 41 is started and high-speed airflow is delivered to the conveying hose 31 through the air pipe 42 to assist the biogas residue in entering the composting kettle 1 through the conveying hose 31. After entering the composting kettle 1, the biogas residue is accumulated in the composting kettle 1. The drive motor 5 drives the mounting rod 6 and the stirring blades 7 to rotate. The stirring blades 7 agitate the biogas residue. At the same time, the airflow delivered by the air pump 41 is introduced into the composting kettle 1 to oxygenate the biogas residue.
[0020] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. An aerobic composting device for biogas residue, characterized in that, include: The composting vessel (1), the lid (2), the feeding mechanism (3) and the pneumatic conveying mechanism (4) are provided. The lid (2) is detachably located at the top opening of the composting vessel (1) and can be closed. The feeding mechanism (3) is located on the side of the composting vessel (1) and connected to the position of the composting vessel (1) near the top opening of the composting vessel (1). The feeding mechanism (3) is used to transport the biogas residue to be composted into the composting vessel (1). The pneumatic conveying mechanism (4) is located at a position away from the composting vessel (1) of the feeding mechanism (3) and is used to assist the feeding mechanism (3) in transporting biogas residue into the composting vessel (1) and to oxygenate the biogas residue.
2. The aerobic composting device for biogas residue according to claim 1, characterized in that: The feeding mechanism (3) includes a conveying hose (31), a feeding hopper (32), an elastic spiral blade (33), a feeding box (34), and a mounting cover (38). The composting vessel (1) has a feeding port near its top opening on the outer wall. The mounting cover (38) is detachably installed at the feeding port on the composting vessel (1). The mounting cover (38) is connected to the feeding box (34) which can communicate with the feeding port. The bottom of the feeding box (34) is connected to the conveying hose (31) which communicates with its interior. The top of the inner side of the feeding box (34) is rotatably connected to the feeding hopper (32) and passes into the inner side of the conveying hose (31). The end of the conveying hose (31) away from the composting vessel (1) is connected to the elastic spiral blade (33). The feeding hopper (32) extends into the inner side of the elastic spiral blade (33).
3. The aerobic composting device for biogas residue according to claim 2, characterized in that: The feeding mechanism (3) also includes a drive motor (35), pulleys (36) and a transmission belt (37). The outer wall of the feeding box (34) is provided with a drive motor (35). The output shaft of the drive motor (35) is equipped with a set of pulleys (36). The end of the feed hopper (32) connected to the feeding box (34) extends to the top of the feeding box (34) and is connected with a set of pulleys (36). A transmission belt (37) is sleeved between the two sets of pulleys (36) to connect them.
4. The aerobic composting device for biogas residue according to claim 3, characterized in that: The pneumatic conveying mechanism (4) includes an air pump (41) and an air pipe (42). The air pump (41) is installed on the outer wall of the conveying hose (31) near the feed hopper (32). The output end of the air pump (41) is connected to the air pipe (42). The air pipe (42) is connected to the conveying hose (31) and communicates with its interior. The angle between the connection point of the air pipe (42) and the conveying hose (31) is less than 45°.
5. The aerobic composting device for biogas residue according to claim 4, characterized in that: A motor (5) is installed at the top center of the lid (2). The output shaft of the motor (5) extends to the bottom of the lid (2) via a coupling and is connected to an installation rod (6). An agitator (7) is connected to the outer wall of the installation rod (6) in a ring array. A feeding port is provided at the top of the lid (2). A sealing cover (11) is detachably installed at the feeding port at the top of the lid (2) to close it. An observation window (8) for observing the inside of the composting tank (1) is inlaid on the outer wall of the composting tank (1).
6. The aerobic composting device for biogas residue according to claim 5, characterized in that: The surface of the lid (2) is provided with a ventilation hole, and a filter screen (9) is inlaid in the ventilation hole on the lid (2). A baffle (10) that can close the ventilation hole is movably connected to the surface of the lid (2).