Biomass plant biogas production fermentation device
The design of the lifting and turning mechanism solves the problem of uneven biomass mixing, achieves full mixing and uniform distribution of biomass, and improves fermentation quality and biogas production efficiency.
Patent Information
- Application Number
- CN202423102900.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-16
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-16
AI Technical Summary
The fixed setting of the existing mixing mechanism results in insufficient and uneven mixing of biomass, which affects fermentation quality and biogas production efficiency.
The system employs a lifting and tumbling mechanism, which uses a motor-driven stirring shaft and stirring rod for lifting and tumbling, combined with a motor-driven rotating rod and stirring plate for tumbling, to achieve uniform mixing of biomass.
It improves the mixing effect and fermentation quality of biomass, enhances biogas production efficiency, prevents biomass settling, and ensures the uniformity of the fermentation process.
Smart Images
Figure CN223646547U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fermentation technology, specifically to a biomass plant biogas fermentation device. Background Technology
[0002] Biomass refers to all living, growing organic matter produced through photosynthesis using the atmosphere, water, and land. It includes plants, animals, and microorganisms. In a broad sense, biomass encompasses all plants, microorganisms, and animals that feed on them, along with their waste products. Representative biomass materials include crops, crop waste, wood, wood waste, and animal manure. In a narrower sense, biomass mainly refers to materials from agricultural and forestry production processes, excluding grains and fruits, such as straw, lignocellulose from trees, byproducts of agricultural processing, agricultural and forestry waste, and livestock manure and waste from animal husbandry. In biomass plants, fermentation equipment is typically used to promote microbial fermentation and efficiently produce biogas. Fermentation equipment is a device used to promote biochemical reactions, commonly used in anaerobic digestion and alcoholic fermentation processes. By processing biomass through fermentation devices, organic waste can be converted into useful energy, reducing the pollution of the environment caused by organic waste. At the same time, converting organic waste into biogas can replace some fossil fuels, providing clean energy and contributing to the diversification of the energy structure.
[0003] When biomass is fermented using a fermentation device, a stirring mechanism is usually installed inside the device to mix the biomass in order to improve the biomass production efficiency. However, since existing stirring mechanisms are generally fixed, they can only stir a fixed area during the stirring process. Consequently, the newly added biomass cannot be well mixed with the biomass in the middle and lower layers, resulting in insufficient and uneven mixing of the biomass. This is detrimental to improving the quality of fermentation and the efficiency of biomass production. Therefore, to solve the above problems, a biomass plant biomass production fermentation device is proposed. Utility Model Content
[0004] The purpose of this invention is to provide a biomass plant biogas production fermentation device to solve the problem mentioned in the background art that the existing stirring mechanism is generally fixed, which means that the stirring process can only stir a fixed area. As a result, the newly added biomass cannot be well mixed with the biomass in the middle and lower layers, resulting in insufficient and uneven mixing of biomass, which is not conducive to improving the quality of fermentation and the efficiency of biogas production.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a biomass plant biogas fermentation device, comprising a tank body, the tank body comprising a fermentation tank, a feed inlet fixedly connected to the top of the fermentation tank, a discharge outlet provided at the bottom of the fermentation tank, an air inlet fixedly connected to the surface of the fermentation tank, an exhaust outlet fixedly connected to the top of the fermentation tank, a stirring shaft movably connected to the inner side of the fermentation tank, a stirring rod installed at the top of the fermentation tank, the output ends of the stirring shaft and the stirring rod fixedly connected, and a first motor fixedly connected to the surface of the stirring shaft;
[0006] The fermenter is equipped with a lifting mechanism at its top. The lifting mechanism includes a support plate, which is fixedly connected to the top of the fermenter. A reciprocating screw is movably connected to the inner side of the support plate. A second motor is fixedly installed at the top of the support plate. The output ends of the reciprocating screw and the second motor are fixedly connected. A moving plate is movably connected to the surface of the reciprocating screw. The first motor is fixedly installed at the bottom end of the moving plate. A limit rod is fixedly connected to the inner surface of the support plate.
[0007] Preferably, the lifting mechanism further includes a connecting rod, which is fixedly connected to the surface of the stirring shaft, and a first stirring plate is fixedly connected to the surface of the connecting rod.
[0008] Preferably, the end of the reciprocating screw away from the second motor is movably connected to the fermentation tank, the end of the limiting rod away from the support plate is fixedly connected to the fermentation tank, and the moving plate is movably connected to the limiting rod.
[0009] Preferably, one end of the connecting rod is fixedly connected to the stirring shaft, and the other end of the connecting rod is fixedly connected to the first stirring plate.
[0010] Preferably, the fermenter is provided with a turning mechanism on the inner side, the turning mechanism includes a rotating rod, the rotating rod is movably connected to the inner side of the fermenter, a third motor is fixedly installed on the surface of the fermenter, and a second stirring plate is fixedly connected to the surface of the rotating rod.
[0011] Preferably, the rotating rod is fixedly connected to the output end of the third motor, and the second stirring plate is fixedly connected to the rotating rod in three groups.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] The second motor drives the reciprocating screw to rotate, which in turn causes the moving plate to move vertically along with the first motor. This, in turn, causes the stirring shaft and stirring rod to rise and fall during rotation. The stirring rod then stirs the biomass at different positions, resulting in better mixing and a more efficient biomass blending. Simultaneously, the connecting rod, driven by the stirring shaft, causes the first stirring plate to rotate and rise and fall. This movement of the first stirring plate agitates the upper layer of biomass, allowing it to be better incorporated into the middle and lower layers, resulting in more uniform biomass production. This ensures effective and high-quality fermentation and improves biogas production efficiency.
[0014] The operation of the third motor drives the rotating rod to rotate, which in turn causes the second stirring plate to rotate. The rotation of the second stirring plate can agitate the biomass at the bottom of the fermentation tank, making it easier for the biomass at the bottom to mix better with the biomass in the middle and upper layers. This results in a more uniform distribution of biomass, prevents sedimentation, and improves the quality and efficiency of fermentation, thus facilitating better biogas production. Attached Figure Description
[0015] Figure 1 This is a front view schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a front sectional view of the structure of this utility model;
[0017] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A;
[0018] Figure 4 This is a side sectional view of the structure of this utility model.
[0019] In the diagram: 1. Fermentation tank; 11. Feed inlet; 12. Discharge outlet; 13. Air inlet; 14. Exhaust outlet; 15. Stirring shaft; 16. Stirring rod; 17. First motor; 2. Support plate; 21. Reciprocating screw; 22. Second motor; 23. Moving plate; 24. Limiting rod; 25. Connecting rod; 26. First stirring plate; 3. Rotating rod; 31. Third motor; 32. Second stirring plate. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figure 1-4 One embodiment provided by this utility model:
[0022] The first motor 17, the second motor 22, and the third motor 31 used in this application are products that can be purchased directly from the market. Their principles and connection methods are existing technologies well known to those skilled in the art, and therefore will not be described in detail here.
[0023] A biomass fermentation device for biogas production includes a tank body, which includes a fermentation tank 1. A feed inlet 11 is fixedly connected to the top of the fermentation tank 1, a discharge outlet 12 is provided at the bottom of the fermentation tank 1, an air inlet 13 is fixedly connected to the surface of the fermentation tank 1, and an exhaust outlet 14 is fixedly connected to the top of the fermentation tank 1. A stirring shaft 15 is movably connected to the inside of the fermentation tank 1, and a stirring rod 16 is installed at the top of the fermentation tank 1. The output ends of the stirring shaft 15 and the stirring rod 16 are fixedly connected. A first motor 17 is fixedly connected to the surface of the stirring shaft 15. The feed inlet 11 allows biomass to enter the fermentation tank 1. The air inlet 13 allows steam to be introduced into the fermentation tank 1. The steam provides the necessary heat and humidity for the fermentation process. The operation of the first motor 17 causes the stirring shaft 15 to drive the stirring rod 16 to rotate, thereby stirring the biomass and accelerating its decomposition, thus improving fermentation efficiency.
[0024] A lifting mechanism is provided at the top of the fermentation tank 1. The lifting mechanism includes a support plate 2, which is fixedly connected to the top of the fermentation tank 1. A reciprocating screw 21 is movably connected to the inner side of the support plate 2. A second motor 22 is fixedly installed at the top of the support plate 2. The output ends of the reciprocating screw 21 and the second motor 22 are fixedly connected. A moving plate 23 is movably connected to the surface of the reciprocating screw 21. A first motor 17 is fixedly installed at the bottom end of the moving plate 23. A limit rod 24 is fixedly connected to the inner surface of the support plate 2. By rotating the reciprocating screw 21, the moving plate 23 can drive the reciprocating screw 21 to reciprocate. As a result, the stirring rod 16 can rise and fall during the rotation, so that the stirring rod 16 can stir the biomass at different positions, so that the biomass can be better mixed and the fermentation and biogas production efficiency can be improved.
[0025] Furthermore, the lifting mechanism also includes a connecting rod 25, which is fixedly connected to the surface of the stirring shaft 15. A first stirring plate 26 is fixedly connected to the surface of the connecting rod 25. With the setting of the first stirring plate 26, the biomass in the middle and upper layers can be turned over during the lifting process, thereby improving the stirring effect of the biomass and making the fermentation more uniform.
[0026] Furthermore, the end of the reciprocating screw 21 away from the second motor 22 is movably connected to the fermentation tank 1, the end of the limiting rod 24 away from the support plate 2 is fixedly connected to the fermentation tank 1, and the moving plate 23 is movably connected to the limiting rod 24. By setting the limiting rod 24, the moving plate 23 can be limited, which can prevent the moving plate 23 from shifting under the action of the reciprocating screw 21, thereby facilitating the stable vertical movement of the stirring shaft 15 during rotation.
[0027] Furthermore, one end of the connecting rod 25 is fixedly connected to the stirring shaft 15, and the other end of the connecting rod 25 is fixedly connected to the first stirring plate 26. The connecting rod 25 connects the stirring shaft 15 and the first stirring plate 26, so that when the stirring shaft 15 rotates, the connecting rod 25 can drive the first stirring plate 26 to rotate accordingly. Thus, the first stirring plate 26 can tumble the biomass in the middle and upper layers during the lifting and lowering process.
[0028] Furthermore, a turning mechanism is provided inside the fermentation tank 1. The turning mechanism includes a rotating rod 3, which is movably connected to the inside of the fermentation tank 1. A third motor 31 is fixedly installed on the surface of the fermentation tank 1, and a second stirring plate 32 is fixedly connected to the surface of the rotating rod 3. By setting the second stirring plate 32, the biomass at the bottom of the fermentation tank 1 can be turned over during rotation, so that the biomass at the bottom can be better mixed with the middle and upper layers, preventing it from settling to the bottom, and thus the biomass distribution can be more uniform.
[0029] Furthermore, the output end of the rotating rod 3 and the third motor 31 are fixedly connected, and the second stirring plate 32 is fixedly connected to the rotating rod 3 in three groups. With the setting of the third motor 31, the rotating rod 3 can be driven to rotate, thereby enabling the second stirring plate 32 to rotate under the action of the rotating rod 3 and to turn over the biomass at the bottom of the fermentation tank 1.
[0030] Working principle: During use, the second motor 22 is electrically connected to an external power source. The operator starts the second motor 22 by pressing the switch. The second motor 22 drives the reciprocating screw 21 to rotate. The moving plate 23 is limited by the limiting rod 24 and will reciprocate under the action of the reciprocating screw 21 and move on the surface of the limiting rod 24. Then, the first motor 17 will drive the stirring shaft 15 and the stirring rod 16 to rise and fall inside the fermentation tank 1 under the action of the moving plate 23, so that the stirring shaft 15 and the stirring rod 16 can reciprocate at the same time during the rotation. Thus, the stirring rod 16 can stir the biomass in different areas. At the same time, the connecting rod 25 can drive the first stirring plate 26 to rotate and rise and fall under the action of the stirring shaft 15, so that the first stirring plate 26 can turn over the upper layer of biomass, so that the upper layer of biomass can be better added to the middle and lower layers of biomass.
[0031] The third motor 31 is electrically connected to an external power source. The operator starts the third motor 31 by pressing the switch. The operation of the third motor 31 drives the rotating rod 3 to rotate. The second stirring plate 32 can rotate under the action of the rotating rod 3. The rotation of the second stirring plate 32 can turn over the biomass at the bottom of the fermentation tank 1, which can prevent the biomass from settling to the bottom and make the biomass at the bottom better mixed with the biomass in the middle and upper layers.
[0032] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the description above. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.
Claims
1. A biomass plant biogas fermentation device, comprising a tank body, the tank body comprising a fermentation tank (1), the top of the fermentation tank (1) being fixedly connected to a feed inlet (11), the bottom of the fermentation tank (1) being provided with a discharge outlet (12), the surface of the fermentation tank (1) being fixedly connected to an air inlet (13), the top of the fermentation tank (1) being fixedly connected to an exhaust outlet (14), the inner side of the fermentation tank (1) being movably connected to a stirring shaft (15), the top of the fermentation tank (1) being equipped with a stirring rod (16), the output end of the stirring shaft (15) and the stirring rod (16) being fixedly connected, and the surface of the stirring shaft (15) being fixedly connected to a first motor (17). Its features are, The fermentation tank (1) is provided with a lifting mechanism at the top. The lifting mechanism includes a support plate (2). The support plate (2) is fixedly connected to the top of the fermentation tank (1). A reciprocating screw (21) is movably connected to the inner side of the support plate (2). A second motor (22) is fixedly installed at the top of the support plate (2). The output end of the reciprocating screw (21) and the second motor (22) are fixedly connected. A moving plate (23) is movably connected to the surface of the reciprocating screw (21). The first motor (17) is fixedly installed at the bottom end of the moving plate (23). A limit rod (24) is fixedly connected to the inner surface of the support plate (2).
2. The biomass plant biogas fermentation device according to claim 1, characterized in that: The lifting mechanism also includes a connecting rod (25), which is fixedly connected to the surface of the stirring shaft (15), and a first stirring plate (26) is fixedly connected to the surface of the connecting rod (25).
3. The biomass plant biogas fermentation device according to claim 1, characterized in that: The end of the reciprocating screw (21) away from the second motor (22) is movably connected to the fermentation tank (1), the end of the limiting rod (24) away from the support plate (2) is fixedly connected to the fermentation tank (1), and the moving plate (23) is movably connected to the limiting rod (24).
4. A biomass plant biogas fermentation device according to claim 2, characterized in that: One end of the connecting rod (25) is fixedly connected to the stirring shaft (15), and the other end of the connecting rod (25) is fixedly connected to the first stirring plate (26).
5. A biomass plant biogas fermentation device according to claim 1, characterized in that: The fermentation tank (1) is provided with a turning mechanism on the inner side. The turning mechanism includes a rotating rod (3). The rotating rod (3) is movably connected to the inner side of the fermentation tank (1). A third motor (31) is fixedly installed on the surface of the fermentation tank (1). A second stirring plate (32) is fixedly connected to the surface of the rotating rod (3).
6. A biomass plant biogas fermentation device according to claim 5, characterized in that: The rotating rod (3) and the output end of the third motor (31) are fixedly connected, and the second stirring plate (32) is in three groups and fixedly connected to the rotating rod (3).