Livestock and poultry manure rapid fermentation tower and biogas immediate collection system
Through multi-layer funnel partitions, electric-controlled rapid fermentation towers for livestock and poultry manure and instant biogas collection system, the problem of difficult fermentation conditions and biogas leakage in traditional fermentation technology is solved, efficient fermentation and resource recycling are achieved, and the improvement of Sustainability of livestock and poultry breeding.
Patent Information
- Application Number
- CN202411500860.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-25
- Publication Date
- 2024-12-06
- Estimated Expiration
- 2044-10-25
AI Technical Summary
Traditional livestock and poultry manure fermentation technology has problems such as difficult to control fermentation conditions, biogas leakage, energy waste, incomplete fermentation and difficulty in discharging, which affects the sustainable development and environmental protection of the livestock and poultry breeding industry.
A rapid fermentation tower of livestock and poultry manure and a biogas instant collection system were designed, using multi-layer funnel partitions and electric-controlled feed and discharge doors, connecting each layer through vent holes, and controlling the cover plate with electromagnets and springs. Open and close, realize layer by layer fermentation and biogas collection, and separate sludge through a drying box and an inclined filter to realize resource recycling.
It improves fermentation efficiency and product quality, avoids biogas leakage and energy waste, realizes continuous fermentation and resource recycling, and reduces production costs and downtime.
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Figure CN119080364A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of biogas fermentation, in particular to a rapid fermentation tower for livestock and poultry excrement and a real-time biogas collection system. Background Art
[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 technology has many shortcomings in material utilization efficiency, fermentation process control, biogas collection and slag treatment, which seriously affects the sustainable development of livestock and poultry farming and ecological environment protection.
[0003] Traditional livestock and poultry manure fermentation technology often uses simple fermentation tanks. These methods are difficult to effectively control the fermentation conditions, resulting in incomplete degradation of organic matter in the manure, low fertilizer quality, and low material utilization efficiency. At the same time, the heat and gas generated during the fermentation process are not effectively utilized, resulting in serious energy waste. The temperature of the fermentation tank is high at the beginning and low at the end. In the early stage, due to the vigorous microbial activity, the traditional fermentation tank will generate a lot of heat, causing the temperature in the tank to rise rapidly. However, as the fermentation progresses, the organic matter is gradually consumed, the microbial activity weakens, and the temperature in the tank gradually decreases, affecting the further progress of the fermentation. This temperature fluctuation not only reduces the 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 the newly added feces are likely to come into contact with the already produced biogas, resulting in biogas leakage. Biogas leakage not only reduces the efficiency of biogas collection, but also may cause safety hazards such as fire or explosion.
[0005] Traditional fermentation tanks usually need to stop fermentation and empty the entire fermentation tank when discharging slag, which not only affects the continuity of fermentation, but also increases the difficulty and cost of operation. In addition, emptying the fermentation tank may also 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 raised in the above background technology. Summary of the invention
[0007] To achieve the above object, the present invention provides the following technical solution: a rapid fermentation tower for livestock and poultry manure and an instant biogas collection system, comprising:
[0008] Bracket, used to support the stable operation of the entire system;
[0009] Multiple fermentation towers are fixed side by side in a bracket, and multi-layer funnel-shaped partitions are designed inside. The partitions divide the fermentation towers into multi-layer material box structures to promote the fermentation of feces layer by layer;
[0010] There are vents on the edge of the partition to allow gas to flow between layers, ensuring that the biogas produced in each layer is interconnected;
[0011] The electrically controlled feed hatch is set at the top of the fermentation tower and is used to feed livestock and poultry manure into the fermentation tower;
[0012] 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.
[0013] The feed lifting device and feed conveying pipe lift the livestock and poultry manure from the outside to the feed hatch and send it into the fermentation tower;
[0014] The air extraction pipe is arranged on one side of the top of the fermentation tower and connected to the air extraction pump to collect the biogas generated during the fermentation process in real time;
[0015] A discharge conveying pipe, connected to each discharge hatch, is used to convey the dried sludge to a designated location;
[0016] A water inlet pipe is connected to a proper position of the fermentation tower and is used to add an appropriate amount of water into the fermentation tower to adjust the fermentation environment;
[0017] The openable and closable cover is located at the center hole of the partition.
[0018] Furthermore, as a preferred embodiment, it is characterized in that an electromagnet is mounted above the central hole of each layer of the partition, and a spring is arranged between the electromagnet and the cover plate;
[0019] The spring provides elastic force to make the cover plate fit to the center hole of the partition plate and seal the center hole;
[0020] The cover plate is made of magnetic conductive material.
[0021] Furthermore, as a preferred embodiment, it is characterized in that it also includes a drying box, which is fixed through the bottom of the fermentation tower and is used to receive the fermented sludge;
[0022] The discharge hatch is arranged on the side wall of the drying box.
[0023] Furthermore, as a preferred embodiment, it is characterized in that it also includes an inclined filter screen, which is obliquely arranged at the bottom of the drying box to separate the biogas slurry and solid sludge generated during the drying process;
[0024] The discharge hatch is arranged at the lowest point of the inclined filter.
[0025] Furthermore, as a preferred embodiment, it is characterized in that it also includes a rotating shaft, which is rotatably arranged at the center of the fermentation tower, and the lower end of which penetrates the outside of the bottom of the drying box;
[0026] A rotating disk is distributed in the middle of each layer of partitions, a stirring rod is fixed on the rotating disk, and each of the rotating disks is fixed to the rotating shaft;
[0027] It also includes a driving motor connected to the lower end of the rotating shaft to provide power for the rotating shaft.
[0028] Furthermore, as a preferred embodiment, it is characterized in that a spacer ring is fixed between the uppermost baffle in the fermentation tower and the top of the fermentation tower;
[0029] The ventilation holes of the uppermost partition are located outside the ring formed by the partition ring;
[0030] The exhaust pipe also passes through the outside of the ring formed by the spacer ring.
[0031] Furthermore, as a preferred embodiment, it is characterized in that it also includes crushing teeth, and the crushing teeth are fixed to the outer wall of the rotating shaft where the drying box is located.
[0032] Furthermore, as a preferred embodiment, it is characterized in that the rotating shaft is a hollow tube, the stirring rod is a hollow tube connected to the rotating shaft, and the end of the stirring rod has an opening;
[0033] The bottom of the rotating shaft is connected to the driving motor via a right-angle reducer;
[0034] The bottom of the rotating shaft passes through the right-angle reducer and is connected with a return pipe, and the return pipe is connected to the bottom of the inclined filter screen of the drying box through a circulating pump.
[0035] Furthermore, as a preference, a circle of water filter ring is fixed under each of the cover plates, and the outer diameter of the water filter ring is the same as the inner diameter of the central hole of the partition plate.
[0036] Further, as a preference, a control system is included:
[0037] S1. Feeding of livestock and poultry manure
[0038] S1-1, the livestock and poultry manure is lifted from the outside to the feed conveying pipe through the feed lifting device, and then transported to the feed hatch;
[0039] S1-2, Use electrically controlled feed hatch to automatically control feed speed and amount to ensure uniform distribution of materials in the fermentation tower;
[0040] S2. Fermentation process control
[0041] S2-1, start the drive motor, drive the turntable through the shaft to stir the material to promote fermentation, and at the same time, the vents allow gas to flow between layers to keep the biogas connected smoothly;
[0042] S2-2, according to the fermentation needs, the cover is opened and closed by the electromagnet and the spring, the cover is lifted to filter water, and the cover is opened to let the material fall to the next layer;
[0043] S2-3, according to the feedback humidity and temperature data, adjust the water inlet of the water inlet pipe and the power of the heating tube in the drying box to maintain suitable fermentation conditions;
[0044] S3. Real-time collection of biogas
[0045] S3-1, the vacuum pump collects the generated biogas from the top of the fermentation tower through the vacuum pipe and performs subsequent treatment or utilization;
[0046] S4. Sludge drying and discharge
[0047] S4-1, after fermentation is completed, the material falls layer by layer into the drying box and is further dried by stirring and heating;
[0048] S4-2, the oblique filter separates the biogas slurry from the solid sludge produced during the drying process, and the biogas slurry is circulated back to the fermentation tower through the reflux pipe to improve the fermentation efficiency;
[0049] S4-3. The crushing teeth are driven by the rotating shaft to crush the dry sludge into blocks, and finally discharged into the discharge conveying pipe through the discharge hatch and transported to the designated location.
[0050] Compared with the prior art, the present invention has the following beneficial effects:
[0051] In the present invention, as the hot air rises, the heat generated during the fermentation process will naturally transfer to the upper layer of the fermentation tower. The newly added material is located in the upper layer and can immediately contact the environment with a higher temperature, thereby accelerating the activity of microorganisms and promoting the start of the fermentation reaction. This temperature gradient not only increases the fermentation speed of the new material, but also makes the temperature distribution in the entire fermentation tower more reasonable, which is conducive to the synchronous fermentation of materials in each layer.
[0052] The multi-layer partition design allows materials on different layers to be at different fermentation stages. The lower layer materials have a relatively high degree of fermentation due to the longer fermentation time, while the upper layer materials are in the early or middle stages of fermentation. This difference in fermentation degree helps to form the diversity of microbial populations. Microbial communities on different layers can complement each other and jointly promote the fermentation process.
[0053] The vents on the edge of the partition allow gas to flow between layers, ensuring that the biogas produced in each layer can be interconnected, avoiding fermentation inhibition caused by local biogas accumulation. At the same time, the circulation of gas also promotes the distribution of oxygen and other necessary gases, providing a good environment for the growth and reproduction of microorganisms.
[0054] When the upper layer of materials ferments to a certain extent, the cover can be opened by controlling the action of the electromagnet and the spring, and the materials fall through the center hole to the next layer. This layer-by-layer falling method not only realizes the continuous fermentation of materials, but also avoids the problems of material accumulation and uneven fermentation that may occur in traditional fermentation methods.
[0055] In the present invention, the fermented sludge is processed in a drying box to form a block solid, which is convenient for subsequent processing and transportation. At the same time, the inclined filter effectively separates the biogas slurry from the solid sludge, and the biogas slurry is re-transported to the fermentation tower through the reflux pipe, realizing the recycling of resources, not only reducing the discharge of waste, but also improving the comprehensive utilization rate of resources.
[0056] The present invention has a mechanism for feeding and slag removal without stopping the machine. The feeding and slag removal process does not affect the fermentation operation of other layers, thus achieving continuous production and continuous operation. The production efficiency and equipment utilization rate are improved, and the production cost and downtime are reduced. At the same time, by accurately controlling parameters such as the water intake and the circulation volume of the biogas slurry, the optimal water content and fermentation environment of the materials in each layer of the partition are maintained, further improving the fermentation efficiency and product quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0057] Figure 1 It is a structural schematic diagram of a livestock and poultry manure rapid fermentation tower and a biogas instant collection system;
[0058] Figure 2 It is a schematic diagram of the structure inside the fermentation tower;
[0059] Figure 3 It is a structural schematic diagram of the cross section of the fermentation tower;
[0060] Figure 4 is a schematic diagram of the structure of the cover plate;
[0061] Figure 5 It is the flow chart of the control system;
[0062] In the figure: 1. bracket; 2. fermentation tower; 21. feed hatch; 22. discharge hatch; 3. feed lifting device; 4. feed conveying pipe; 5. exhaust pipe; 6. discharge conveying pipe; 7. water inlet pipe; 8. partition; 81. vent; 9. cover plate; 91. spring; 92. electromagnet; 93. water filter ring; 10. rotating shaft; 11. turntable; 12. stirring rod; 13. partition ring; 14. drying box; 15. inclined filter screen; 16. crushing teeth; 17. drive motor; 18. reflux pipe. DETAILED DESCRIPTION
[0063] See also Figure 1-Figure 4 In an embodiment of the present invention, a livestock and poultry manure rapid fermentation tower and a biogas instant collection system include:
[0064] Bracket 1, used to support the stable operation of the entire system;
[0065] A plurality of fermentation towers 2 are fixed side by side in a bracket 1, and a multi-layer funnel-shaped partition 8 is designed inside. The partition 8 divides the fermentation tower 2 into a multi-layer material box structure to promote the fermentation of feces layer by layer;
[0066] The edges of the partitions 8 are provided with vent holes 81 to allow gas to circulate between the layers, ensuring that the biogas produced in each layer is interconnected;
[0067] An electrically controlled feed hatch 21 is provided at the top of the fermentation tower 2 and is used to feed livestock and poultry excrement into the fermentation tower;
[0068] An electrically controlled discharge hatch 22 is provided at the bottom of the fermentation tower 2 and is used to discharge the sludge after fermentation and drying;
[0069] The feed lifting device 3 and the feed conveying pipe 4 lift the livestock and poultry manure from the outside to the feed hatch 21 and feed it into the fermentation tower 2;
[0070] The air extraction pipe 5 is arranged at one side of the top of the fermentation tower 2 and connected to the air extraction pump for collecting the biogas generated during the fermentation process in real time;
[0071] A discharge conveying pipe 6, connected to each discharge hatch 22, is used to convey the dried sludge to a designated location;
[0072] A water inlet pipe 7, connected to a suitable position of the fermentation tower 2, is used to add a suitable amount of water into the fermentation tower to adjust the fermentation environment;
[0073] The openable and closable cover plate 9 is located at the center hole of the partition plate 8 .
[0074] As hot air rises, the heat generated during the fermentation process will naturally transfer to the upper layer of the fermentation tower. The newly added materials are located in the upper layer and can immediately contact the higher temperature environment, thereby accelerating the activity of microorganisms and promoting the start of the fermentation reaction. This temperature gradient not only increases the fermentation speed of new materials, but also makes the temperature distribution in the entire fermentation tower more reasonable, which is conducive to the synchronous fermentation of materials on each layer.
[0075] The multi-layer partition design allows materials on different layers to be at different fermentation stages. The lower layer materials have a relatively high degree of fermentation due to the longer fermentation time, while the upper layer materials are in the early or middle stages of fermentation. This difference in fermentation degree helps to form the diversity of microbial populations. Microbial communities on different layers can complement each other and jointly promote the fermentation process.
[0076] The vents on the edge of the partition allow gas to flow between layers, ensuring that the biogas produced in each layer can be interconnected, avoiding fermentation inhibition caused by local biogas accumulation. At the same time, the circulation of gas also promotes the distribution of oxygen and other necessary gases, providing a good environment for the growth and reproduction of microorganisms.
[0077] In this embodiment, an electromagnet 92 is mounted above the central hole of each layer of the partition plate 8, and a spring 91 is arranged between the electromagnet 92 and the cover plate 9;
[0078] The spring 91 provides elastic force to make the cover plate 9 fit to the center hole of the partition plate 8 and seal the center hole;
[0079] The cover plate 9 is made of magnetic conductive material;
[0080] 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 center hole. When the center hole is opened, the material in the partition plate 8 of this layer will fall into the next partition plate 8 through the center hole.
[0081] When the upper layer of materials ferments to a certain extent, the cover can be opened by controlling the action of the electromagnet and the spring, and the materials fall through the center hole to the next layer. This layer-by-layer falling method not only realizes the continuous fermentation of materials, but also avoids the problems of material accumulation and uneven fermentation that may occur in traditional fermentation methods.
[0082] In this embodiment, a drying box 14 is also included. The drying box 14 is fixed through the bottom of the fermentation tower 2 and is used to receive the fermented sludge.
[0083] The discharge hatch door 22 is arranged on the side wall of the drying box 14 .
[0084] In this embodiment, a heating tube is provided on the side wall of the drying box 14 .
[0085] In this embodiment, an inclined filter screen 15 is further included. The inclined filter screen 15 is obliquely arranged at the bottom of the drying box 14 to separate the biogas slurry and solid sludge generated during the drying process.
[0086] The discharge hatch 22 is arranged at the lowest point of the inclined filter screen 15 .
[0087] The fermented materials become sludge and fall into the drying box 14. The biogas liquid in the sludge is separated by the inclined filter 15, and then dried into blocks after heating. The blocks are discharged from the discharge hatch 22 to the discharge conveying pipe 6 for discharge.
[0088] In this embodiment, a rotating shaft 10 is further included, which is rotatably disposed at the center of the fermentation tower 2, and the lower end of the rotating shaft 10 passes through the bottom of the drying box 14;
[0089] A rotating disk 11 is distributed in the middle of each layer of the partition 8, and a stirring rod 12 is fixed on the rotating disk 11, and each of the rotating disks 11 is fixed to the rotating shaft 10;
[0090] The drive motor 17 is also included, which is connected to the lower end of the rotating shaft 10 to provide power for the rotating shaft 10 .
[0091] The rotation of the turntable 11 drives the stirring rod 12 to stir the material, thereby accelerating the fermentation process.
[0092] In this embodiment, a spacer ring 13 is fixed between the uppermost partition plate 8 in the fermentation tower 2 and the top of the fermentation tower 2;
[0093] The vent hole 81 of the uppermost partition plate 8 is located outside the ring formed by the partition ring 13;
[0094] The exhaust pipe 5 also passes through the outside of the ring formed by the spacer ring 13 .
[0095] When the feed hatch 21 is opened, since the rest of the space in the fermentation tower 2 except the uppermost partition 8 is sealed, biogas leakage is prevented and the fermentation process in other spaces is not affected, so continuous feeding can be achieved.
[0096] In this embodiment, the crushing teeth 16 are also included, and the crushing teeth 16 are fixed to the outer wall of the rotating shaft 10 at the position of the drying box 14. When the rotating shaft 10 rotates, the crushing teeth 16 can crush the sludge dried into blocks in the drying box 14 for smooth discharge.
[0097] 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 end of the stirring rod 12 has an opening;
[0098] The bottom of the rotating shaft 10 is connected to the driving motor 17 via a right-angle reducer;
[0099] The bottom of the rotating shaft 10 passes through the right-angle reducer and is connected to a return pipe 18 . The return pipe 18 is connected to the bottom of the inclined filter screen 15 of the drying box 14 through a circulation pump.
[0100] That is to say, the biogas slurry separated by the inclined filter 15 can be transported to the rotating shaft 10 through the reflux pipe 18, and sprayed into each layer of the partition 8 along with each stirring rod 12. The biogas slurry contains a large amount of nitrogen elements and bacteria and can be reused. 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 the partition 8, thereby improving the fermentation efficiency of the incompletely fermented material.
[0101] Since the slag discharge process does not affect the fermentation of each layer of the partition 8, it is possible to discharge the slag without stopping the machine, thereby achieving continuous production.
[0102] In this embodiment, a circle of water filter ring 93 is fixed under each cover plate 9 , and the outer diameter of the water filter ring 93 is the same as the inner diameter of the central hole of the partition plate 8 .
[0103] When a small current is passed through the electromagnet 92, the cover plate 9 is slightly lifted, a gap is generated between the cover plate 9 and the central hole, and the gap is blocked by the water filter ring 93. At this time, the water in the material on the layer of partition 8 can flow to the next layer of partition 8 and the solid remains in this layer, which plays a role in reducing the water content. By coordinating the water inlet amount of the water inlet pipe 7 and the water delivery amount of the circulating pump connected to the return pipe 18, the water content of each layer of partition 8 can be controlled to keep the water content in the most suitable range and improve the fermentation efficiency.
[0104] When a relatively large current is passed through the electromagnet 92 and the cover plate 9 fits against the electromagnet 92, the water filter ring 93 leaves the central hole, and at this time, all the materials on the partition plate 8 of this layer will fall to the next layer.
[0105] Also includes control system:
[0106] S1. Feeding of livestock and poultry manure
[0107] S1-1, livestock and poultry manure is lifted from the outside to the feed conveying pipe 4 through the feed lifting device 3, and transported to the feed hatch 21;
[0108] S1-2, using the electrically controlled feed hatch 21 to automatically control the feed speed and amount to ensure uniform distribution of materials in the fermentation tower 2;
[0109] S2. Fermentation process control
[0110] S2-1, start the driving motor 17, drive the turntable 11 to rotate through the rotating shaft 10, and the stirring rod 12 on the turntable stirs the material to promote fermentation. At the same time, the vents 81 allow gas to flow between the layers to keep the biogas connected smoothly;
[0111] 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, a small current lifts the cover plate 9 to filter water, and a large current opens the cover plate 9 to make the material fall to the next layer;
[0112] S2-3, according to the feedback humidity and temperature data, adjust the water inlet of the water inlet pipe 7 and the power of the heating tube in the drying box 14 to maintain suitable fermentation conditions;
[0113] S3. Real-time collection of biogas
[0114] S3-1, the vacuum pump collects the generated biogas from the top of the fermentation tower 2 through the vacuum pipe 5 in real time, and performs subsequent treatment or utilization;
[0115] S4. Sludge drying and discharge
[0116] S4-1, after the fermentation is completed, the material falls layer by layer into the drying box 14 and is further dried by stirring and heating;
[0117] S4-2, the oblique filter 15 separates the biogas slurry from the solid sludge produced during the drying process, and the biogas slurry is circulated back to the fermentation tower through the reflux pipe 18 to improve the fermentation efficiency;
[0118] S4-3. The crushing teeth 16 are driven by the rotating shaft 10 to crush the dried sludge into blocks, and finally the sludge is discharged into the discharge conveying pipe 6 through the discharge hatch 22 and transported to the designated location.
[0119] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A livestock and poultry manure rapid fermentation tower and biogas instant collection system, characterized in that: include A bracket (1), used to support the stable operation of the entire system; A plurality of fermentation towers (2) are fixed side by side in a support (1), and are internally provided with multi-layer funnel-shaped partitions (8). The partitions (8) divide the fermentation towers (2) into multi-layer material box structures to promote layer-by-layer fermentation of feces; The edges of the partitions (8) are provided with ventilation holes (81) to allow gas to flow between the layers, thus ensuring that the biogas produced in each layer is interconnected; An electrically controlled feed hatch (21) is arranged at the top of the fermentation tower (2) and is used to feed livestock and poultry excrement into the fermentation tower; An electrically controlled discharge hatch (22) is arranged at the bottom of the fermentation tower (2) and is used to discharge the sludge after fermentation and drying; The feed lifting device (3) and the feed conveying pipe (4) lift the livestock and poultry manure from the outside to the feed hatch (21) and feed it into the fermentation tower (2); An air extraction pipe (5) is arranged on one side of the top of the fermentation tower (2) and is connected to an air extraction pump for instantly collecting biogas generated during the fermentation process; A discharge conveying pipe (6), connected to each discharge hatch (22), for conveying the dried sludge to a designated location; A water inlet pipe (7), connected to a suitable position of the fermentation tower (2), for adding a suitable amount of water into the fermentation tower to adjust the fermentation environment; The cover plate (9) can be opened and closed and is located at the central hole of the partition plate (8).
2. The livestock and poultry manure rapid fermentation tower and biogas instant collection system according to claim 1, characterized in that: An electromagnet (92) is mounted above the central hole of each layer of the partition (8), and a spring (91) is arranged between the electromagnet (92) and the cover plate (9); The spring (91) provides elastic force to make the cover plate (9) fit to the central hole of the partition plate (8) and seal the central hole; The cover plate (9) is made of magnetic conductive material.
3. The livestock and poultry manure rapid fermentation tower and biogas instant collection system according to claim 1, characterized in that: It also includes a drying box (14), which is fixed through the bottom of the fermentation tower (2) and is used to receive the fermented sludge; The discharge hatch door (22) is arranged on the side wall of the drying box (14).
4. The livestock and poultry manure rapid fermentation tower and biogas instant collection system according to claim 3, characterized in that: It also includes an inclined filter screen (15), which is obliquely arranged at the bottom of the drying box (14) and is used to separate the biogas slurry and solid sludge generated during the drying process; The discharge hatch (22) is arranged at the lowest point of the inclined filter (15).
5. The livestock and poultry manure rapid fermentation tower and biogas instant collection system according to claim 3, characterized in that: It also includes a rotating shaft (10), which is rotatably arranged at the center of the fermentation tower (2) and has a lower end that penetrates outside the bottom of the drying box (14); A rotating disk (11) is distributed in the middle of each layer of partitions (8), a stirring rod (12) is fixed on the rotating disk (11), and each of the rotating disks (11) is fixed to a rotating shaft (10); It also includes a driving motor (17) connected to the lower end of the rotating shaft (10) to provide power for the rotating shaft (10).
6. The livestock and poultry manure rapid fermentation tower and biogas instant collection system according to claim 1, characterized in that: A spacer ring (13) is fixed between the uppermost partition plate (8) in the fermentation tower (2) and the top of the fermentation tower (2); The vent hole (81) of the uppermost partition plate (8) is located outside the ring formed by the partition ring (13); The exhaust pipe (5) also passes through the outside of the ring formed by the spacer ring (13).
7. The livestock and poultry manure rapid fermentation tower and biogas instant collection system according to claim 3, characterized in that: It also includes crushing teeth (16), and the crushing teeth (16) are fixed on the outer wall of the rotating shaft (10) at the location of the drying box (14).
8. The livestock and poultry manure rapid fermentation tower and biogas instant collection system according to claim 5, characterized in that: The rotating shaft (10) is a hollow tube, the stirring rod (12) is a hollow tube connected to the rotating shaft (10), and the end of the stirring rod (12) has an opening; The bottom of the rotating shaft (10) is connected to the driving motor (17) via a right-angle reducer; The bottom of the rotating shaft (10) passes through the right-angle reducer and is connected to a return pipe (18). The return pipe (18) is connected to the lower part of the inclined filter screen (15) of the drying box (14) through a circulation pump.
9. The livestock and poultry manure rapid fermentation tower and biogas instant collection system according to claim 2, characterized in that: A circle of water filter ring (93) is fixed below each cover plate (9), and the outer diameter of the water filter ring (93) is the same as the inner diameter of the central hole of the partition plate (8).
10. The livestock and poultry manure rapid fermentation tower and biogas instant collection system according to claim 1, characterized in that: Including control system: S1. Feeding of livestock and poultry manure S1-1, livestock and poultry manure is lifted from the outside to the feed conveying pipe (4) by the feed lifting device (3), and then transported to the feed hatch (21); S1-2, using an electrically controlled feed hatch (21) to automatically control the feed speed and amount to ensure uniform distribution of materials in the fermentation tower (2); S2. Fermentation process control S2-1, starting the driving motor (17), driving the rotating disk (11) to rotate via the rotating shaft (10), and the stirring rod (12) on the rotating disk stirs the material to promote fermentation. At the same time, the vents (81) allow gas to flow between the layers to keep the biogas connected 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 lifted up to filter the water, and the cover plate (9) is opened to allow the material to fall to the next layer; S2-3, according to the feedback humidity and temperature data, adjusting the water inlet of the water inlet pipe (7) and the power of the heating tube in the drying box (14) to maintain suitable fermentation conditions; S3. Real-time collection of biogas S3-1, the vacuum pump collects the generated biogas from the top of the fermentation tower (2) through the vacuum pipe (5) in real time, and performs subsequent treatment or utilization; S4. Sludge drying and discharge S4-1, after fermentation is completed, the material falls layer by layer into the drying box (14) and is further dried by stirring and heating; S4-2, the oblique filter (15) separates the biogas slurry and solid sludge produced during the drying process, and the biogas slurry is circulated back to the fermentation tower through the reflux pipe (18) to improve the fermentation efficiency; S4-3. The crushing teeth (16) are driven by the rotating shaft (10) to crush the dried sludge into blocks, and finally the sludge is discharged into the discharge conveying pipe (6) through the discharge hatch (22) and transported to the designated location.
Citation Information
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