Livestock manure rapid fermentation tower and biogas instant collection system
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-25
- Publication Date
- 2026-08-11
AI Technical Summary
然而,随着发酵的进行,有机物逐渐消耗,微生物活动减弱,池内温度逐渐降低,影响了发酵的进一步进行
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Figure CN119080364B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of biogas fermentation technology, specifically a rapid fermentation tower for livestock and poultry manure and an instant biogas collection system. Background Technology
[0002] With the rapid development of livestock and poultry farming, the treatment and resource utilization of livestock and poultry manure has become an urgent problem to be solved. Traditional livestock and poultry manure treatment technologies have many shortcomings in terms of material utilization efficiency, fermentation process control, biogas collection, and slag treatment.
[0003] Traditional livestock and poultry manure fermentation technology often uses simple fermentation tanks. These methods struggle to effectively control fermentation conditions, leading to incomplete degradation of organic matter in the manure, low fertilizer quality, and low material utilization efficiency. Furthermore, the heat and gases generated during fermentation are not effectively utilized, resulting in significant energy waste. Traditional fermentation tanks initially generate a large amount of heat due to vigorous microbial activity, causing the tank temperature to rise rapidly. However, as fermentation progresses, organic matter is gradually consumed, microbial activity weakens, and the tank temperature gradually decreases, hindering further fermentation. This temperature fluctuation not only reduces fermentation efficiency but may also lead to incomplete fermentation or the production of harmful substances.
[0004] In traditional fermentation tanks, the feeding process is difficult to control, and newly added manure can easily come into contact with already produced biogas, leading to biogas leaks. Biogas leaks not only reduce biogas collection efficiency but can also cause safety hazards such as fires or explosions.
[0005] Traditional fermentation tanks typically require stopping fermentation and emptying the entire tank when discharging slag. This not only affects the continuity of fermentation but also increases operational difficulty and cost. Furthermore, emptying the fermentation tank may lead to the release of harmful gases and odors, causing pollution to the surrounding environment.
[0006] Therefore, it is necessary to provide a rapid fermentation tower for livestock and poultry manure and an instant biogas collection system to solve the problems mentioned in the background art. Summary of the Invention
[0007] To achieve the above objectives, the present invention provides the following technical solution: a rapid fermentation tower for livestock and poultry manure and an instant biogas collection system, comprising... The support frame is used to ensure the stable operation of the entire system. Multiple fermentation towers are fixed side by side in a support frame. The interior is designed with multiple funnel-shaped baffles, which divide the fermentation tower into multiple material box structures to promote the fermentation of manure layer by layer. Ventilation holes are provided along the edges of the partition to allow gas to circulate between layers, ensuring that the biogas produced in each layer is interconnected. An electrically controlled feed door is located at the top of the fermentation tower and is used to feed livestock and poultry manure into the fermentation tower. The electrically controlled discharge hatch is located at the bottom of the fermentation tower and is used to discharge the sludge after fermentation and drying. The feeding lifting device and feeding conveyor pipe lift livestock and poultry manure from the outside to the feeding chamber and send it into the fermentation tower; An extraction pipe is installed on one side of the top of the fermentation tower and connected to an extraction pump to collect biogas produced during the fermentation process in real time. The discharge conveyor pipe is connected to each discharge chamber door and is used to transport the dried sludge to the designated location; The water inlet pipe is connected to the appropriate location in the fermentation tower to add an appropriate amount of water to the fermentation tower to regulate the fermentation environment. An openable and closable cover is located at the center hole of the partition.
[0008] Furthermore, as a preferred embodiment, an electromagnet is mounted above the central hole of each partition, and a spring is provided between the electromagnet and the cover plate; The spring provides elastic force to make the cover plate fit against the center hole of the partition and seal the center hole; The cover plate is made of magnetic material.
[0009] Furthermore, as a preferred embodiment, it is characterized by further including a drying box, which is fixedly installed at the bottom of the fermentation tower for receiving fermented sludge; The discharge hatch is located on the side wall of the drying chamber.
[0010] Furthermore, as a preferred embodiment, it is characterized by further including an inclined filter screen, which is inclinedly disposed at the bottom of the drying chamber for separating biogas slurry and solid sludge generated during the drying process; The discharge hatch is located at the lowest point of the inclined filter screen.
[0011] Furthermore, as a preferred embodiment, it is characterized by further including a rotating shaft, which is rotatably disposed at the center of the fermentation tower and extends to the bottom of the drying chamber; Each partition has a turntable partially distributed in the middle, and a stirring rod is fixed on the turntable. Each turntable is fixed to a rotating shaft. It also includes a drive motor, which is connected to the lower end of the shaft to provide power to the shaft.
[0012] Furthermore, as a preferred embodiment, the uppermost partition plate inside the fermentation tower is fixed with a ring between it and the top of the fermentation tower. The vent holes of the uppermost partition are located outside the ring formed by the partition rings; The extraction pipe also extends to the outside of the ring formed by the partition ring.
[0013] Furthermore, as a preferred embodiment, it is characterized by further including crushing teeth, which are fixed to the outer wall of the rotating shaft at the location of the drying chamber.
[0014] Furthermore, as a preferred embodiment, the rotating shaft is a hollow tube, the stirring rod is a hollow tube communicating with the rotating shaft, and the stirring rod has an opening at its end. The bottom of the rotating shaft is connected to the drive motor via a right-angle reducer; The bottom of the rotating shaft passes through a right-angle reducer and is connected to a return pipe. The return pipe is connected to the area below the inclined filter screen of the drying chamber via a circulation pump.
[0015] Furthermore, preferably, a filter ring is fixed below each of the cover plates, and the outer diameter of the filter ring is the same as the inner diameter of the central hole of the partition plate.
[0016] Furthermore, as a preferred embodiment, a control system is included: S1. Livestock and poultry manure feeding S1-1. Livestock and poultry manure is lifted from the outside to the feed conveyor pipe by the feed lifting device and transported to the feed hatch. S1-2. The feed chamber door is electrically controlled to automatically control the feed speed and amount, ensuring that the material is evenly distributed in the fermentation tower. S2, Fermentation Process Control S2-1. Start the drive motor, which drives the turntable through the shaft to stir the material and promote fermentation. At the same time, the vents allow gas to flow between layers to keep the biogas flowing smoothly. S2-2. According to the fermentation needs, the opening and closing of the cover plate is controlled by electromagnet and spring. The cover plate is raised to filter water, and the cover plate is opened to allow the material to fall to the next layer. S2-3. Based on the feedback humidity and temperature data, adjust the water inlet flow rate and the heating tube power in the drying chamber to maintain suitable fermentation conditions. S3, Instant biogas collection S3-1. The air pump collects the biogas generated from the top of the fermentation tower in real time through the air extraction pipe, and then processes or utilizes it. S4. Sludge Drying and Discharge S4-1 After fermentation, the material falls layer by layer into the drying box, where it is further dried by stirring and heating. S4-2. Inclined filter screen separates the biogas slurry and solid sludge produced during the drying process. The biogas slurry is circulated back to the fermentation tower through the return pipe to improve fermentation efficiency. S4-3. The crushing teeth crush the dried sludge into blocks under the drive of the rotating shaft, and finally discharge it into the discharge conveyor pipe through the discharge hatch and transport it to the designated location.
[0017] Compared with the prior art, the beneficial effects of the present invention are: In this invention, as hot air rises, the heat generated during fermentation naturally transfers to the upper layer of the fermentation tower. Newly added materials, located in the upper layer, immediately come into contact with the higher temperature environment, thereby accelerating the activity of microorganisms and promoting the initiation of the fermentation reaction. This temperature gradient not only increases the fermentation speed of the new materials but also makes the temperature distribution throughout the fermentation tower more rational, which is beneficial for the synchronous fermentation of materials in each layer.
[0018] The multi-layered partition design ensures that materials in different layers are at different stages of fermentation. The lower layer, having a longer fermentation time, exhibits a relatively higher degree of fermentation, while the upper layer is in the early or middle stages of fermentation. This difference in fermentation level contributes to the diversity of microbial communities, allowing the microbial communities in different layers to complement each other and jointly promote the fermentation process.
[0019] The ventilation holes at the edges of the partitions allow gas to circulate between layers, ensuring that the biogas produced in each layer is interconnected and preventing fermentation inhibition caused by localized biogas accumulation. Simultaneously, the gas circulation promotes the distribution of oxygen and other essential gases, providing a favorable environment for the growth and reproduction of microorganisms.
[0020] Once the upper layer of material has fermented to a certain extent, the cover can be opened by controlling the action of an electromagnet and a spring, allowing the material to fall through the central hole to the next layer. This layer-by-layer falling method not only achieves continuous fermentation of the material but also avoids the problems of material accumulation and uneven fermentation that may occur in traditional fermentation methods.
[0021] In this invention, the fermented sludge is dried in a drying chamber to form solid blocks, facilitating subsequent processing and transportation. Simultaneously, an inclined filter effectively separates the biogas slurry from the solid sludge, and the biogas slurry is returned to the fermentation tower via a return pipe, achieving resource recycling. This not only reduces waste emissions but also improves the overall utilization rate of resources.
[0022] This invention features a stop-down feeding and slag removal mechanism, ensuring that the feeding and slag removal processes do not affect the fermentation operations of other layers, thus achieving continuous production and operation. This improves production efficiency and equipment utilization, while reducing production costs and downtime. Simultaneously, by precisely controlling parameters such as water inflow and biogas slurry circulation, the optimal moisture content and fermentation environment of the materials within each partition layer are maintained, further enhancing fermentation efficiency and product quality. Attached Figure Description
[0023] Figure 1 A schematic diagram of a rapid fermentation tower for livestock and poultry manure and an instant biogas collection system; Figure 2 This is a schematic diagram of the internal structure of the fermentation tower; Figure 3This is a schematic diagram of the cross-section of the fermentation tower; Figure 4 This is a schematic diagram of the cover plate. Figure 5 A flowchart of the control system; In the diagram: 1. Support frame; 2. Fermentation tower; 21. Feed chamber door; 22. Discharge chamber door; 3. Feed lifting device; 4. Feed conveyor pipe; 5. Exhaust pipe; 6. Discharge conveyor pipe; 7. Water inlet pipe; 8. Partition plate; 81. Vent hole; 9. Cover plate; 91. Spring; 92. Electromagnet; 93. Filter ring; 10. Rotating shaft; 11. Turntable; 12. Stirring rod; 13. Spacing ring; 14. Drying oven; 15. Inclined filter screen; 16. Crushing teeth; 17. Drive motor; 18. Return pipe. Detailed Implementation
[0024] Please see Figures 1-4 In this embodiment of the invention, a rapid fermentation tower for livestock and poultry manure and an instant biogas collection system include: Bracket 1 is used to support the stable operation of the entire system; Multiple fermentation towers 2 are fixed side by side in the support 1. The interior is designed with multiple funnel-shaped partitions 8. The partitions 8 divide the fermentation towers 2 into multiple material box structures to promote the fermentation of manure layer by layer. The partition 8 is provided with ventilation holes 81 at its edge, which allows gas to circulate between layers and ensures that the biogas produced in each layer is interconnected. An electrically controlled feed door 21 is located at the top of the fermentation tower 2 and is used to feed livestock and poultry manure into the fermentation tower. The electrically controlled discharge hatch 22 is located at the bottom of the fermentation tower 2 and is used to discharge the sludge after fermentation and drying. The feeding lifting device 3 and the feeding conveying pipe 4 lift livestock and poultry manure from the outside to the feeding chamber 21 and send it into the fermentation tower 2; The extraction pipe 5 is located on one side of the top of the fermentation tower 2 and is connected to the extraction pump for immediate collection of biogas produced during the fermentation process. The discharge conveyor pipe 6 is connected to each discharge chamber door 22 and is used to transport the dried sludge to a designated location. Water inlet pipe 7 is connected to an appropriate position in fermentation tower 2 to add an appropriate amount of water to the fermentation tower to regulate the fermentation environment; The openable and closable cover 9 is located at the center hole of the partition 8.
[0025] As hot air rises, the heat generated during fermentation naturally transfers to the upper layers of the fermentation tower. Newly added materials, located at the top, immediately come into contact with the higher temperature environment, thus accelerating microbial activity and promoting the initiation of the fermentation reaction. This temperature gradient not only increases the fermentation speed of new materials but also makes the temperature distribution throughout the fermentation tower more rational, which is beneficial for the synchronous fermentation of materials in each layer.
[0026] The multi-layered partition design ensures that materials in different layers are at different stages of fermentation. The lower layer, having a longer fermentation time, exhibits a relatively higher degree of fermentation, while the upper layer is in the early or middle stages of fermentation. This difference in fermentation level contributes to the diversity of microbial communities, allowing the microbial communities in different layers to complement each other and jointly promote the fermentation process.
[0027] The ventilation holes at the edges of the partitions allow gas to circulate between layers, ensuring that the biogas produced in each layer is interconnected and preventing fermentation inhibition caused by localized biogas accumulation. Simultaneously, the gas circulation promotes the distribution of oxygen and other essential gases, providing a favorable environment for the growth and reproduction of microorganisms.
[0028] In this embodiment, an electromagnet 92 is mounted above the central hole of each layer of partition 8, and a spring 91 is provided between the electromagnet 92 and the cover plate 9. The spring 91 provides elastic force to make the cover plate 9 fit against the center hole of the partition plate 8 and seal the center hole; The cover plate 9 is made of magnetically conductive material; The opening and closing of the cover plate 9 is controlled by the coordinated action of the electromagnet 92 and the spring 91 to adjust the opening and closing state of the central hole. When the central hole is open, the material in the partition plate 8 will fall into the next partition plate 8 through the central hole.
[0029] Once the upper layer of material has fermented to a certain extent, the cover can be opened by controlling the action of an electromagnet and a spring, allowing the material to fall through the central hole to the next layer. This layer-by-layer falling method not only achieves continuous fermentation of the material but also avoids the problems of material accumulation and uneven fermentation that may occur in traditional fermentation methods.
[0030] In this embodiment, a drying box 14 is also included. The drying box 14 is fixed to the bottom of the fermentation tower 2 and is used to receive the fermented sludge. The discharge hatch 22 is located on the side wall of the drying chamber 14.
[0031] In this embodiment, the drying oven 14 is provided with heating tubes on its side wall.
[0032] In this embodiment, an inclined filter screen 15 is also included. The inclined filter screen 15 is inclinedly arranged at the bottom of the drying box 14 to separate the biogas slurry and solid sludge generated during the drying process. The discharge hatch 22 is located at the lowest point of the inclined filter screen 15.
[0033] After fermentation, the material becomes sludge and falls into the drying chamber 14. After passing through the inclined filter screen 15 to separate the biogas slurry from the sludge, it is heated and dried into blocks, and then discharged from the discharge chamber 22 into the discharge conveyor pipe 6.
[0034] In this embodiment, a rotating shaft 10 is also included. The rotating shaft 10 is rotatably disposed at the center of the fermentation tower 2, and its lower end extends through to the bottom of the drying box 14. Each partition 8 has a turntable 11 partially distributed in the middle, and a stirring rod 12 is fixed on the turntable 11. Each turntable 11 is fixed to the rotating shaft 10. It also includes a drive motor 17, which is connected to the lower end of the rotating shaft 10 to provide power to the rotating shaft 10.
[0035] The rotation of turntable 11 drives the stirring rod 12 to stir the material, accelerating the fermentation process.
[0036] In this embodiment, a partition ring 13 is fixed between the uppermost partition plate 8 inside the fermentation tower 2 and the top of the fermentation tower 2; The vent 81 of the uppermost partition 8 is located outside the ring formed by the partition ring 13; The extraction pipe 5 also extends to the outside of the ring formed by the partition ring 13.
[0037] When the feed chamber door 21 is opened, the fermentation tower 2 is sealed except for the top partition 8, which prevents biogas from leaking out and does not affect the fermentation process in other spaces, thus enabling continuous feeding.
[0038] In this embodiment, a crushing tooth 16 is also included, which is fixed to the outer wall of the rotating shaft 10 at the location of the drying chamber 14. When the rotating shaft 10 rotates, the crushing tooth 16 can crush the dried sludge that has been dried into blocks in the drying chamber 14, so that it can be discharged smoothly.
[0039] In this embodiment, the rotating shaft 10 is a hollow tube, the stirring rod 12 is a hollow tube connected to the rotating shaft 10, and the stirring rod 12 has an opening at its end; The bottom of the rotating shaft 10 is connected to the drive motor 17 via a right-angle reducer; The bottom of the rotating shaft 10 passes through a right-angle reducer and is connected to a return pipe 18. The return pipe 18 is connected to the area below the inclined filter screen 15 of the drying chamber 14 via a circulation pump.
[0040] In other words, the biogas slurry separated by the inclined filter screen 15 can be transported to the rotating shaft 10 through the return pipe 18, and sprayed into each layer of partition 8 along with each stirring rod 12. The biogas slurry contains a large amount of nitrogen and bacteria, which can be reused. Furthermore, the biogas slurry is heated to a certain temperature in the drying box 14, which can also increase the temperature of the material in each layer of partition 8, thereby improving the fermentation efficiency of the incompletely fermented material.
[0041] Since the slag removal process does not affect the fermentation of each layer of partition 8, it can remove slag without stopping the machine, thus achieving continuous production.
[0042] In this embodiment, a filter ring 93 is fixed below each cover plate 9, and the outer diameter of the filter ring 93 is the same as the inner diameter of the center hole of the partition plate 8.
[0043] When a small current is applied to the electromagnet 92, the cover plate 9 is slightly raised, creating a gap between the cover plate 9 and the central hole. This gap is blocked by the filter ring 93. At this time, the water in the material on this layer of partition 8 can flow to the next layer of partition 8, while the solids remain on this layer, thus reducing the moisture content. By controlling the water inlet flow rate of the inlet pipe 7 and the water delivery rate of the circulation pump connected to the return pipe 18, the moisture content of each layer of partition 8 can be controlled, keeping the moisture content within the most suitable range and improving fermentation efficiency.
[0044] When a large current is applied to the electromagnet 92, and the cover plate 9 is in contact with the electromagnet 92, the filter ring 93 leaves the central hole, and at this time all the material on the partition plate 8 will fall to the next layer.
[0045] It also includes the control system: S1. Livestock and poultry manure feeding S1-1. The livestock and poultry manure is lifted from the outside to the feed conveying pipe 4 by the feed lifting device 3 and transported to the feed door 21. S1-2. The feed chamber door 21 is electrically controlled to automatically control the feed speed and amount, ensuring that the material is evenly distributed in the fermentation tower 2. S2, Fermentation Process Control S2-1. Start the drive motor 17, which drives the turntable 11 to rotate through the rotating shaft 10. The stirring rod 12 on the turntable stirs the material to promote fermentation. At the same time, the vent 81 allows gas to flow between layers to keep the biogas flowing smoothly. S2-2. According to the fermentation needs, the opening and closing of the cover plate 9 is controlled by the electromagnet 92 and the spring 91. The small current lifts the cover plate 9 to filter water, and the large current opens the cover plate 9 to let the material fall to the next layer. S2-3. Based on the feedback humidity and temperature data, adjust the water inlet flow rate of the water inlet pipe 7 and the heating tube power in the drying chamber 14 to maintain suitable fermentation conditions. S3, Instant biogas collection S3-1. The air pump collects the biogas generated from the top of the fermentation tower 2 immediately through the air extraction pipe 5, and then processes or utilizes it. S4. Sludge Drying and Discharge S4-1 After fermentation, the material falls layer by layer into the drying box 14, where it is further dried by stirring and heating; S4-2, Inclined filter screen 15 separates the biogas slurry and solid sludge generated during the drying process. The biogas slurry is circulated back to the fermentation tower through return pipe 18 to improve fermentation efficiency. S4-3, the crushing teeth 16, driven by the rotating shaft 10, crush the dried sludge into blocks, and finally discharge it into the discharge conveyor pipe 6 through the discharge hatch 22, and transport it to the designated location.
[0046] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.
Claims
1. A rapid fermentation tower for livestock and poultry manure and a method for real-time biogas collection, comprising a rapid fermentation tower for livestock and poultry manure and a real-time biogas collection system, characterized in that, include: The bracket (1) is used to support the stable operation of the entire system; Multiple fermentation towers (2) are fixed side by side in the support (1). The interior is designed with multiple funnel-shaped partitions (8). The partitions (8) divide the fermentation towers (2) into multiple material box structures to promote the fermentation of manure layer by layer. The partition (8) is provided with ventilation holes (81) at the edge, which allows gas to flow between layers and ensures that the biogas produced in each layer is interconnected; An electrically controlled feed door (21) is installed at the top of the fermentation tower (2) for feeding livestock and poultry manure into the fermentation tower; An electrically controlled discharge hatch (22) is located at the bottom of the fermentation tower (2) and is used to discharge the sludge after fermentation and drying. The feeding lifting device (3) and the feeding conveying pipe (4) lift the livestock and poultry manure from the outside to the feeding chamber door (21) and send it into the fermentation tower (2); An extraction pipe (5) is installed on one side of the top of the fermentation tower (2) and connected to an extraction pump for immediate collection of biogas produced during the fermentation process. The discharge conveyor pipe (6) is connected to each discharge hatch (22) for conveying the dried sludge to the designated location; Water inlet pipe (7) is connected to an appropriate position in fermentation tower (2) to add an appropriate amount of water to the fermentation tower to regulate the fermentation environment; An openable and closable cover (9) is located at the center hole of the partition (8); An electromagnet (92) is mounted above the central hole of each partition (8), and a spring (91) is provided between the electromagnet (92) and the cover plate (9); The spring (91) provides elastic force to make the cover plate (9) fit against the center hole of the partition plate (8) and seal the center hole; The cover plate (9) is made of magnetic material; Each of the cover plates (9) has a filter ring (93) fixed below it, and the outer diameter of the filter ring (93) is the same as the inner diameter of the center hole of the partition plate (8); A ring (13) is fixed between the uppermost partition (8) inside the fermentation tower (2) and the top of the fermentation tower (2); The vent (81) of the uppermost partition (8) is located outside the ring formed by the partition ring (13); S1. Livestock and poultry manure feeding S1-1. The livestock and poultry manure is lifted from the outside to the feed conveyor pipe (4) by the feed lifting device (3) and transported to the feed door (21); S1-2. The feed chamber door (21) is electrically controlled to automatically control the feed speed and amount, ensuring that the material is evenly distributed in the fermentation tower (2). S2, Fermentation Process Control S2-1. Start the drive motor (17) and drive the turntable (11) to rotate through the rotating shaft (10). The stirring rod (12) on the turntable stirs the material to promote fermentation. At the same time, the ventilation hole (81) allows gas to flow between layers to keep biogas flowing smoothly. S2-2. According to the fermentation needs, the opening and closing of the cover plate (9) is controlled by the electromagnet (92) and the spring (91). The cover plate (9) is raised to filter water, and the cover plate (9) is opened to allow the material to fall to the next layer. S2-3. Based on the feedback of humidity and temperature data, adjust the water inlet flow rate of the water inlet pipe (7) and the heating tube power in the drying box (14) to maintain suitable fermentation conditions. S3, Instant biogas collection S3-1. The gas pump collects the biogas generated from the top of the fermentation tower (2) through the gas extraction pipe (5) and then processes or utilizes it. S4. Sludge Drying and Discharge S4-1 After fermentation, the material falls layer by layer into the drying box (14) and is further dried by stirring and heating; S4-2, Inclined filter screen (15) separates the biogas slurry and solid sludge generated during the drying process. The biogas slurry is circulated back to the fermentation tower through the return pipe (18) to improve the fermentation efficiency. S4-3, The crushing teeth (16) crush the dried sludge into blocks under the drive of the rotating shaft (10), and finally discharge it into the discharge conveyor pipe (6) through the discharge hatch (22) and transport it to the designated location. When a small current is applied to the electromagnet (92), the cover plate (9) is slightly raised, creating a gap between the cover plate (9) and the central hole. The gap is blocked by the water filter ring (93). At this time, the water in the material on the partition plate (8) can flow to the next partition plate (8), while the solid remains in the same layer, thus reducing the water content.
2. The rapid fermentation tower for livestock and poultry manure and the method for immediate biogas collection according to claim 1, characterized in that, It also includes a drying box (14), which is fixed to the bottom of the fermentation tower (2) and is used to receive the fermented sludge; The discharge hatch (22) is located on the side wall of the drying chamber (14).
3. The rapid fermentation tower for livestock and poultry manure and the method for immediate biogas collection according to claim 2, characterized in that, It also includes an inclined filter screen (15), which is inclinedly arranged at the bottom of the drying box (14) for separating biogas slurry and solid sludge generated during the drying process; The discharge hatch (22) is located at the lowest point of the inclined filter screen (15).
4. The rapid fermentation tower for livestock and poultry manure and the method for immediate biogas collection according to claim 2, characterized in that, It also includes a rotating shaft (10), which is rotatably disposed at the center of the fermentation tower (2), and its lower end extends through to the bottom of the drying box (14); Each partition (8) has a turntable (11) partially distributed in the middle, and a stirring rod (12) is fixed on the turntable (11). Each turntable (11) is fixed to the rotating shaft (10). It also includes a drive motor (17) connected to the lower end of the rotating shaft (10) to provide power to the rotating shaft (10).
5. The rapid fermentation tower for livestock and poultry manure and the method for immediate biogas collection according to claim 1, characterized in that, The extraction pipe (5) also extends to the outside of the ring formed by the partition ring (13).
6. The rapid fermentation tower for livestock and poultry manure and the method for immediate biogas collection according to claim 4, characterized in that, It also includes a crushing tooth (16), which is fixed to the outer wall of the shaft (10) at the location of the drying box (14).
7. The rapid fermentation tower for livestock and poultry manure and the method for immediate biogas collection according to claim 4, characterized in that, The rotating shaft (10) is a hollow tube, and the stirring rod (12) is a hollow tube connected to the rotating shaft (10), and the stirring rod (12) has an opening at its end; The bottom of the rotating shaft (10) is connected to the drive motor (17) via a right-angle reducer; The bottom of the rotating shaft (10) is penetrated by a right-angle reducer and connected to a return pipe (18). The return pipe (18) is connected to the drying box (14) below the inclined filter screen (15) via a circulation pump.
Citation Information
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