Organic waste facultative fermentation reaction device

Abstract

The utility model relates to the technical field of organic matter fermentation, specifically is an organic waste facultative fermentation reaction device, including fermentation tank, the fermentation tank includes pretreatment area, main fermentation area and after -ripening area from top to bottom, is evenly provided with the baffle box between pretreatment area and main fermentation area and between main fermentation area and after -ripening area, the symmetrical baffle plate is slidably installed in the baffle box, and the opening and closing control structure is set up to the baffle plate, and the stirring shaft is installed in the fermentation tank, and the stirring motor is set up to the stirring shaft, and the stirring structure is installed on the stirring shaft, the stirring shaft includes first shaft section, second shaft section and third shaft section, and the transmission ratio adjusting structure is set up between first shaft section and second shaft section and between second shaft section and third shaft section, and the temperature and humidity detection component and gas delivery structure are set up to the pretreatment area, main fermentation area and after -ripening area in the fermentation tank.

Description

Technical Field

[0001] This utility model relates to the field of organic fermentation technology, specifically to an anaerobic fermentation reactor for organic waste. Background Technology

[0002] Organic waste refers to waste derived from organic matter such as plants, animals, and microorganisms. Common types include kitchen waste, agricultural and forestry straw, livestock and poultry manure, garden leaves, and food processing by-products. It is characterized by its easy degradation and high organic matter content. While indiscriminate disposal can easily cause environmental pollution, it can be transformed into organic fertilizer, biogas, and other resources through composting, fermentation, and biomass energy utilization, thus "turning waste into treasure." It is an important target for treatment in the circular economy and environmental protection fields.

[0003] Facultative anaerobic fermentation of organic waste is a key technology for realizing the resource utilization of waste. Its core requirement is to improve fermentation efficiency by precisely controlling the fermentation environment (temperature, humidity, oxygen content, stirring intensity, etc.) and taking into account the activity of both aerobic and anaerobic bacteria.

[0004] Existing anaerobic fermentation reactors are mostly single-tank integrated designs, lacking clear functional zoning. Different stages such as pretreatment, primary fermentation, and post-ripening share the same fermentation space, making it impossible to adapt to the different environmental parameters for the characteristics of each stage. This results in a mismatch between fermentation conditions and material requirements, affecting fermentation quality and efficiency.

[0005] Meanwhile, traditional equipment mixing systems are mostly single-speed integral mixing, which is difficult to meet the high-intensity mixing required to enhance mass transfer during the main fermentation stage, and the low-intensity mixing requirements during the pretreatment and post-ripening stages. The existing same-speed mixing method cannot meet the different needs of the composting stages of organic waste. Utility Model Content

[0006] The purpose of this invention is to provide an anaerobic fermentation reactor for organic waste to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an anaerobic fermentation reactor for organic waste, comprising a fermenter, which includes a pretreatment zone, a main fermentation zone, and a post-fermentation zone from top to bottom. A partition box is provided between the pretreatment zone and the main fermentation zone, and between the main fermentation zone and the post-fermentation zone. A partition plate is symmetrically and slidably installed within each partition box, and an opening / closing control structure is provided corresponding to the partition plate. A stirring shaft is installed inside the fermenter, and a stirring motor is provided corresponding to the stirring shaft. A stirring structure is installed on the stirring shaft, which includes a first shaft section, a second shaft section, and a third shaft section. A transmission ratio adjustment structure is provided between the first and second shaft sections, and between the second and third shaft sections. Temperature and humidity detection components and gas conveying structures are provided inside the fermenter corresponding to the pretreatment zone, the main fermentation zone, and the post-fermentation zone.

[0008] This utility model is further configured such that a sliding groove is provided on the partition box, and the partition plate is slidably installed in the sliding groove to realize the sliding installation of the partition plate relative to the fermentation tank, thereby achieving the opening and closing function. The opening and closing control structure includes a bidirectional ball screw, on which two sets of screw nuts are symmetrically arranged. A drive frame is provided on the outer side of the partition plate, and the drive frame is installed on the corresponding screw nut. The drive end of the bidirectional ball screw is connected to a screw motor. When the screw motor is started, the bidirectional ball screw is controlled to run, thereby driving the two... The lead screw nuts move closer or further apart to drive the two sets of baffles to move closer or further apart via the drive frame. When it is necessary to control the organic waste falling from the top to the next fermentation zone, the two sets of baffles are opened. When it is necessary to separate the upper and lower zones, the baffles are closed. Here, this utility model can install bearings on the first and second shaft sections with an interference fit. When the baffle is closed, it can press against and fit against the outer ring of the bearing. In this way, the bearing is a sealed bearing, which can improve the separation effect of the baffle and at the same time maintain the smooth rotation of the stirring shaft.

[0009] The present invention is further configured such that the inner wall of the sliding groove is provided with a blowing pipe, and a plurality of blowing heads are evenly arranged on the blowing pipe. The blowing heads are embedded in the inner wall of the sliding groove. The input end of the blowing pipe extends to the outside of the baffle box and is connected to a controllable air source. When the baffle is closed, the controllable air source is delivered to the blowing pipe and blown out through the blowing heads to sweep away the debris in the sliding groove. In this way, the fermented organic waste can be prevented from falling into the sliding groove during the material discharge process, thus affecting the connection accuracy of the baffle.

[0010] The present invention is further configured such that the stirring structure includes a stirring rod, the tail end of which is mounted on a stirring shaft, and the other end is provided with a scraper. The outer end of the scraper slides against the inner wall of the fermentation tank. When the stirring shaft rotates, it can drive the stirring rod to rotate. The stirring rod can stir the organic waste in the fermentation tank, thereby improving the uniformity of oxygen distribution among the organic waste and improving the decomposition effect of aerobic bacteria.

[0011] The present invention is further configured such that the transmission ratio adjustment structure includes an adjustment box, wherein the bottom end of the first shaft segment, the top end of the third shaft segment, and both ends of the second shaft segment extend into the corresponding adjustment box via bearings and are provided with transmission gears. A transmission ratio adjustment gear is installed in the adjustment box via bearings. The upper and lower ends of the transmission ratio adjustment gear are respectively provided with first teeth and second teeth. The first teeth and second teeth mesh with corresponding transmission gears in the same adjustment box at different transmission ratios. Taking the transmission between the first shaft segment and the second shaft segment as an example, when the stirring motor controls the first stirring shaft to rotate, the first... A stirring shaft drives a corresponding transmission gear to rotate. This transmission gear meshes with the corresponding first tooth, controlling the rotation of the transmission ratio adjustment gear, thereby enabling the rotation of the second tooth. Under the meshing action of the second tooth and the transmission gear at the top of the second shaft section, the second shaft section can rotate at different speeds. The transmission between the second shaft section and the third shaft section is similar. In this way, the pretreatment zone and the post-ripening zone can be stirred at a slower speed, while the main fermentation zone can be stirred at a relatively faster speed. Thus, different stirring speeds can be adopted according to the characteristics of different fermentation stages, so as to further improve the fermentation effect and efficiency of organic waste.

[0012] The present invention is further configured such that the temperature and humidity detection component includes a temperature and humidity detection frame, one end of which is installed on the inner wall of the fermentation tank, and the other end is evenly provided with multiple protective net covers. A temperature and humidity meter is installed inside the protective net cover. The temperature and humidity meter adopts an existing temperature and humidity sensor product and is installed on the temperature and humidity detection frame inside the protective net cover. Multiple meters are arranged from the inside to the outside according to the diameter of the fermentation tank. In this way, the temperature and humidity in different radial ranges from the inside to the outside can be detected evenly and stably, ensuring the uniformity of temperature and humidity during the fermentation of organic waste.

[0013] This invention is further configured such that the gas delivery structure includes an air blowing pipe located at the bottom of the pretreatment zone, the main fermentation zone, and the post-ripening zone. Multiple air blowing heads are evenly arranged on the air blowing pipe. The input end of the air blowing pipe is connected to a controllable oxygen source. Air outlet hoods are provided on the top sidewalls of the pretreatment zone, the main fermentation zone, and the post-ripening zone. A gas collecting pipe is provided at the output end of the air outlet hood, and a gas collection device is connected to the gas collecting pipe. A protective mesh plate is provided at the end of the air outlet hood connected to the fermenter. In use, the oxygen source is connected according to the pretreatment... The air required for the treatment zone, main fermentation zone, and post-fermentation zone is transported to the corresponding air blowing pipes and evenly blown out through the air blowing head. In conjunction with the stirring structure, the oxygen source can be evenly distributed inside the organic waste for use by aerobic bacteria. This avoids excessive oxygen affecting the decomposition effect of anaerobic bacteria while ensuring the decomposition performance of aerobic bacteria. Excess airflow and gases such as methane produced during fermentation can be collected through the air outlet hood and transported to the existing gas collection equipment through the gas collection pipe. Here, the gas collection pipe can be controlled by a valve.

[0014] The present invention is further configured such that a spray pipe is provided at the top of the pretreatment zone, and the spray pipe is connected to a spray water source. The spray water source is delivered to the spray pipe and sprayed evenly onto the organic waste through the spray pipe. In conjunction with the stirring structure, the humidity of the organic waste fermentation is ensured. Here, the spray water source can be water, fermentation liquid, or other liquids required in the organic waste fermentation process. The top of the fermentation tank is provided with a feed pipe, and the bottom is provided with a discharge pipe. The bottom end of the third shaft section is provided with a spiral blade. A sealing cover can be provided at the feed pipe, and a valve can be provided at the discharge pipe. This is known in the prior art and will not be described in detail in the present invention. The spiral blade can assist in the discharge when the material is discharged from the discharge pipe.

[0015] Compared with the prior art, the beneficial effects of this utility model are: 1. Zoning Design Enhances Fermentation Adaptability. This invention divides the fermenter into three independent zones: a pretreatment zone, a main fermentation zone, and a post-ripening zone. Separation and material transfer are achieved through partition boxes and precisely opening / closing baffles. Each zone is equipped with independent temperature and humidity detection and gas delivery structures, allowing for adjustment of oxygen supply, temperature, and humidity according to the characteristics of different fermentation stages. This solves the problem of poor adaptability and single fermentation environment in traditional devices, ensuring precise matching of fermentation conditions at each stage.

[0016] 2. Optimized and Efficient Mixing System. The segmented design of the mixing shaft, coupled with a transmission ratio adjustment structure, allows for high-speed mixing in the main fermentation zone to enhance the reaction, while low-speed mixing in the pretreatment and post-ripening zones ensures energy efficiency. The mixing rod, combined with a scraper design, improves the uniformity of material and oxygen mixing and prevents material accumulation on the inner wall. The synergy between segmented mixing and scrapers significantly improves fermentation efficiency and reduces energy consumption and cleaning costs.

[0017] 3. Detailed design ensures operational stability. The sliding groove of the baffle box has a built-in air blower to blow away residual material and prevent the baffle from jamming; the temperature and humidity detection components achieve radial uniform detection through sensors inside the multi-point protective mesh cover; the spiral blades at the discharge end assist in material discharge, and the air outlet hood is equipped with a protective mesh plate to prevent blockage. These detailed designs solve the problems of easy jamming, inaccurate detection, and poor material discharge in traditional devices, ensuring long-term stable operation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of an anaerobic fermentation reactor for organic waste according to the present invention. Figure 2 This is a cross-sectional view of the overall structure of this utility model; Figure 3 This is a schematic diagram of the connection structure between the first shaft segment, the second shaft segment, and the third shaft segment in the stirring shaft of this utility model; Figure 4This is a cross-sectional schematic diagram of the mating structure between the air blowing pipe and the air outlet hood in this utility model; Figure 5 This is a cross-sectional view of the internal structure of the regulating box in this utility model; Figure 6 This is a cross-sectional view of the positional structure between the sliding groove and the blower head in this utility model; Figure 7 This is a schematic diagram of the driving structure of the partition baffle in this utility model; Figure 8 This is an exploded view of the installation structure of the temperature and humidity detector in this utility model.

[0019] The attached diagram lists the components represented by each number as follows: 1. Fermentation tank; 2. Pretreatment zone; 3. Main fermentation zone; 4. Post-fermentation zone; 5. Baffle box; 6. Baffle plate; 7. Stirring shaft; 8. Stirring motor; 9. First shaft section; 10. Second shaft section; 11. Third shaft section; 12. Sliding groove; 13. Bidirectional ball screw; 14. Screw nut; 15. Drive frame; 16. Screw motor; 17. Air duct; 18. Air blower head; 9. Stirring rod; 20. Scraper; 21. Adjusting box; 22. Transmission gear; 23. Transmission ratio adjusting gear; 24. First tooth; 25. Second tooth; 26. Temperature and humidity detection frame; 27. Protective net cover; 28. Temperature and humidity meter; 29. ​​Air blowing pipe; 30. Air blowing head; 31. Air outlet cover; 32. Air collecting pipe; 33. Protective net plate; 34. Spray pipe; 35. Feed pipe; 36. Discharge pipe; 37. Spiral blade. 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] This utility model provides a technical solution: Please refer to Figures 1-8 An anaerobic fermentation reactor for organic waste includes a fermentation tank 1, which comprises a pretreatment zone 2, a main fermentation zone 3, and a post-fermentation zone 4 from top to bottom. In this invention, a partition box 5 is provided between the pretreatment zone 2 and the main fermentation zone 3, and between the main fermentation zone 3 and the post-ripening zone 4. A partition plate 6 is symmetrically and slidably installed inside the partition box 5, and an opening and closing control structure is provided corresponding to the partition plate 6. In this invention, a stirring shaft 7 is installed inside the fermentation tank 1, and a stirring motor 8 is provided corresponding to the stirring shaft 7. A stirring structure is installed on the stirring shaft 7. The stirring shaft 7 includes a first shaft section 9, a second shaft section 10 and a third shaft section 11. A transmission ratio adjustment structure is provided between the first shaft section 9 and the second shaft section 10, as well as between the second shaft section 10 and the third shaft section 11. Meanwhile, this utility model provides temperature and humidity detection components and gas conveying structures inside the fermenter 1 for the pretreatment zone 2, main fermentation zone 3 and post-ripening zone 4.

[0022] Please see Figures 1-8 As one embodiment of the present invention: the partition box 5 of the present invention is provided with a sliding groove 12, and the partition plate 6 is slidably installed in the sliding groove 12 to realize the sliding installation of the partition plate 6 relative to the fermentation tank 1, so as to achieve the opening and closing function. The opening and closing control structure includes a bidirectional ball screw 13, on which two sets of screw nuts 14 are symmetrically arranged. A drive frame 15 is arranged on the outside of the baffle 6. The drive frame 15 is installed on the corresponding screw nut 14. The drive end of the bidirectional ball screw 13 is connected to a screw motor 16. When in use, start the lead screw motor 16, and control the operation of the bidirectional ball screw 13 through the lead screw motor 16, thereby driving the two sets of lead screw nuts 14 to move closer or further apart, so that the two sets of partition plates 6 can be driven to move closer or further apart through the drive frame 15. When it is necessary to control the organic waste falling from the top to the next fermentation zone, control the opening between the two sets of baffles 6; When it is necessary to separate the upper and lower sections, control the baffle 6 to close; Here, the present invention can install bearings on the first shaft section 9 and the second shaft section 10 by interference fit. When the baffle plate 6 is closed, it can press against and fit against the outer ring of the bearing. In this way, the bearing is a sealed bearing, which can improve the baffle plate 6's blocking effect and at the same time maintain the smooth rotation of the stirring shaft 7.

[0023] Please see Figures 1-8 As one embodiment of the present invention: the inner wall of the sliding groove 12 is provided with a blower pipe 17, and a plurality of blower heads 18 are evenly provided on the blower pipe 17. The blower heads 18 are embedded in the inner wall of the sliding groove 12. The input end of the blower pipe 17 extends to the outside of the baffle box 5 and is connected to a controllable air source. When the baffle 6 is closed, a controllable air source is delivered to the air pipe 17 and blown out through the air blower 18 to sweep away the debris in the sliding groove 12. This can prevent fermented organic waste from falling into the sliding groove 12 during the material feeding process, thus avoiding the situation where the baffle 6 docking accuracy is affected.

[0024] Please see Figures 1-8As one embodiment of the present invention: the stirring structure of the present invention includes a stirring rod 19, the tail end of the stirring rod 19 is mounted on the stirring shaft 7, and the other end is provided with a scraper 20, the outer end of the scraper 20 is slidably attached to the inner wall of the fermentation tank 1. When the stirring shaft 7 rotates, it can drive the stirring rod 19 to rotate. The stirring rod 19 can stir the organic waste in the fermentation tank 1, which can improve the uniformity of oxygen distribution among the organic waste and improve the decomposition effect of aerobic bacteria. The scraper 20 can scrape and clean the inner wall of the fermentation tank 1 to prevent organic materials from adhering inside and improve the stirring effect.

[0025] Please see Figures 1-8 As one embodiment of the present invention: the transmission ratio adjustment structure of the present invention includes an adjustment box 21. The bottom end of the first shaft segment 9, the top end of the third shaft segment 11, and both ends of the second shaft segment 10 extend into the corresponding adjustment box 21 through bearings and are provided with transmission gears 22. The transmission ratio adjustment gear 23 is installed in the adjustment box 21 through bearings. The upper and lower ends of the transmission ratio adjustment gear 23 are respectively provided with first teeth 24 and second teeth 25. The first teeth 24 and the second teeth 25 respectively mesh with the corresponding transmission gears 22 in the same adjustment box 21 with different transmission ratios. Taking the transmission between the first shaft segment 9 and the second shaft segment 10 as an example: When the stirring motor 8 controls the first stirring shaft 7 to rotate, the first stirring shaft 7 will drive the corresponding transmission gear 22 to rotate. This transmission gear 22 meshes with the corresponding first tooth 24, controlling the rotation of the transmission ratio adjustment gear 23, thereby enabling the rotation of the second tooth 25. Under the meshing action of the second tooth 25 and the transmission gear 22 at the top of the second shaft section 10, the second shaft section 10 can rotate at different speeds. The transmission between the second shaft section 10 and the third shaft section 11 is similar. In this way, under the drive of the same motor, the pretreatment zone 2 and the post-ripening zone 4 can be controlled to stir at a slower speed, while the main fermentation zone 3 can be stirred at a relatively faster speed. Thus, different stirring speeds can be adopted according to the characteristics of different fermentation stages, so as to further improve the fermentation effect and efficiency of organic waste.

[0026] Please see Figures 1-8 As one embodiment of the present invention: the temperature and humidity detection component of the present invention includes a temperature and humidity detection frame 26, one end of the temperature and humidity detection frame 26 is installed on the inner wall of the fermentation tank 1, and the other end is evenly provided with a plurality of protective net covers 27, and a temperature and humidity detector 28 is provided inside the protective net cover 27. Among them, the temperature and humidity detector 28 adopts the existing temperature and humidity sensor product and is installed on the temperature and humidity detection frame 26 inside the protective net cover 27. Multiple detectors are set from the inside to the outside according to the diameter of the fermentation tank 1. In this way, the temperature and humidity in different radial ranges from the inside to the outside can be detected evenly and stably, ensuring the uniformity of temperature and humidity during the fermentation of organic waste. Here, the scraper 20 is equipped with a cavity groove structure in conjunction with the temperature and humidity detection frame 26 to ensure smooth rotation.

[0027] Please see Figures 1-8 As one embodiment of the present invention: the gas conveying structure of the present invention includes an air blowing pipe 29, which is located at the bottom of the pretreatment zone 2, the main fermentation zone 3 and the post-ripening zone 4. Multiple air blowing heads 30 are evenly arranged on the air blowing pipe 29, and the input end of the air blowing pipe 29 is connected to a controllable oxygen source. In this invention, an air hood 31 is provided on the top side wall of the pretreatment zone 2, the main fermentation zone 3 and the post-ripening zone 4. A gas collecting pipe 32 is provided at the output end of the air hood 31. The gas collecting pipe 32 is connected to a gas collection device. A protective mesh plate 33 is provided at the end of the air hood 31 that is connected to the fermentation tank 1. In use, the oxygen source is delivered to the corresponding air blowing pipe 29 according to the needs of the pretreatment zone 2, the main fermentation zone 3, and the post-ripening zone 4, and blown out evenly through the air blowing head 30. At the same time, in conjunction with the stirring structure, the oxygen source can be evenly distributed inside the organic waste for use by aerobic bacteria. This can avoid the effect of excessive oxygen on the decomposition effect of anaerobic bacteria, while ensuring the decomposition performance of aerobic bacteria. Excess airflow and gases such as methane produced during fermentation can be collected through the air outlet hood 31 and transported to the existing gas collection equipment through the gas collection pipe 32 for collection. Here, the gas collection pipe 32 can be controlled by a valve.

[0028] Please see Figures 1-8 As one embodiment of the present invention: a spray pipe 34 is provided on the top of the pretreatment zone 2 in the present invention, and the spray pipe 34 is connected to a spray water source. The water source is delivered to the spray pipe 34, and the water is evenly sprayed onto the organic waste through the spray pipe 34. In conjunction with the stirring structure, the humidity of the organic waste fermentation is ensured. Here, the spray water source can be water, fermentation liquid, or other liquids required during the fermentation of organic waste. The top of the fermentation tank 1 is equipped with an inlet pipe 35 and the bottom is equipped with an outlet pipe 36. The bottom end of the third shaft section 11 is equipped with a spiral blade 37. A sealing cover can be installed at the inlet pipe 35 and a valve can be installed at the outlet pipe 36. This is known in the prior art and will not be described in detail in this utility model. The spiral blade 37 can assist in the discharge when the material is discharged from the outlet pipe 36.

[0029] In summary: This invention sets up a pretreatment zone 2, a main fermentation zone 3, and a post-fermentation zone 4, and separates the three zones with a partition box 5 and a partition plate 6. In this way, the zones can be divided according to the degree of fermentation of organic waste, and the stirring speed and oxygen content in the material can be adaptively adjusted according to different degrees of fermentation, thereby improving the overall fermentation effect. In use, organic waste is transported into the fermentation tank 1 through the feed pipe 35 and first enters the pretreatment zone 2; In the pretreatment zone 2, basic operations such as spraying fermentation liquid can be performed on the organic fermentation material through the spray pipe 34, and an appropriate amount of oxygen-containing gas can be provided through the combination of the air blowing pipe 29 and the air blowing head 30 to improve fermentation efficiency. After pretreatment is completed, the bidirectional ball screw 13 is started by controlling the operation of the lead screw motor 16, thereby driving the two sets of lead screw nuts 14 to move away from each other, so that the two sets of baffles 6 can be moved away from each other by the drive frame 15, so that the material in the pretreatment zone 2 can fall into the main fermentation zone 3 for further fermentation. Then, the reverse control screw motor 16 runs, causing the baffle 6 to close, thus separating the pretreatment zone 2 and the main fermentation zone 3, so that new organic waste can be transported into the pretreatment zone 2 and the above pretreatment operation can be repeated. Here, the present invention can install bearings on the first shaft section 9 and the second shaft section 10 by interference fit. In this way, when the baffle plate 6 is closed, it can press against and fit against the outer ring of the bearing. The bearing is a sealed bearing, which can improve the baffle plate 6's blocking effect and at the same time maintain the smooth rotation of the stirring shaft 7. This invention divides the fermentation tank 1 into three independent and controllable zones, allowing for different operations based on the degree of composting of organic waste, thereby improving the fermentation effect of organic waste. Afterwards, the material enters the main fermentation zone 3, and an appropriate amount of oxygen-containing gas can be introduced through the corresponding air blowing pipe 29 and air blowing head 30. At the same time, the stirring structure is used to assist in stirring. After this stage is completed, the lower baffle 6 is opened by operating in the same way as above, so that the material in the main fermentation zone 3 enters the post-fermentation zone 4 and undergoes further fermentation in the same way as above. This invention sets the stirring shaft 7 into a first shaft segment 9, a second shaft segment 10, and a third shaft segment 11. At the same time, it is equipped with a transmission ratio adjustment structure. In this way, stirring can be carried out at different speeds according to the stirring needs in the pretreatment zone 2, the main fermentation zone 3, and the post-ripening zone 4, thereby improving the fermentation effect and efficiency.

[0030] In this utility model, the outer side of the screw portion of the bidirectional ball screw 13 can be protected by a corrugated cover or other protective cover. This is a known prior art and will not be described in detail here. This utility model can set a drain pipe structure at the bottom of the fermentation tank 1 corresponding to the pretreatment zone 2, the main fermentation zone 3 and the post-ripening zone 4. It is suitable for organic waste that will generate fermentation liquid. The drain pipe structure is a known existing structure, which will not be described in detail in this utility model, and is not shown in the attached drawings. In this invention, the fermentation tank 1 can be selected from existing temperature-controlled tanks as needed; In this utility model, the operation of relevant electrical components such as motors can be controlled by a PLC control system or controller according to a set program. The specific working process and working principle of this utility model have been described in detail. Based on the above working process and working principle, those skilled in the art should know the specific circuit connection relationship and implement it through existing technology. Furthermore, the circuit connection relationship between relevant electrical components and the specific driver program are not the subject of protection of this utility model, and this utility model will not elaborate on them.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An anaerobic fermentation reactor for organic waste, comprising a fermenter (1), characterized in that: The fermentation tank (1) includes a pretreatment zone (2), a main fermentation zone (3), and a post-ripening zone (4) from top to bottom. A partition box (5) is provided between the pretreatment zone (2) and the main fermentation zone (3) and between the main fermentation zone (3) and the post-ripening zone (4). A partition plate (6) is symmetrically and slidably installed in the partition box (5), and an opening and closing control structure is provided corresponding to the partition plate (6). A stirring shaft (7) is installed in the fermentation tank (1), and a stirring motor is provided corresponding to the stirring shaft (7). (8) A stirring structure is installed on the stirring shaft (7). The stirring shaft (7) includes a first shaft section (9), a second shaft section (10) and a third shaft section (11). A transmission ratio adjustment structure is provided between the first shaft section (9) and the second shaft section (10) and between the second shaft section (10) and the third shaft section (11). Temperature and humidity detection components and gas conveying structures are provided inside the fermenter (1) corresponding to the pretreatment zone (2), the main fermentation zone (3) and the post-ripening zone (4).

2. The facultative anaerobic fermentation reactor for organic waste according to claim 1, characterized in that: The partition box (5) is provided with a sliding groove (12), and the partition plate (6) is slidably installed in the sliding groove (12). The opening and closing control structure includes a bidirectional ball screw (13), and two sets of screw nuts (14) are symmetrically arranged on the bidirectional ball screw (13). A drive frame (15) is provided on the outside of the partition plate (6), and the drive frame (15) is installed on the corresponding screw nut (14). The drive end of the bidirectional ball screw (13) is connected to a screw motor (16).

3. The facultative anaerobic fermentation reactor for organic waste according to claim 2, characterized in that: The inner wall of the sliding groove (12) is provided with a blower pipe (17), and a plurality of blower heads (18) are evenly arranged on the blower pipe (17). The blower heads (18) are embedded in the inner wall of the sliding groove (12). The input end of the blower pipe (17) extends to the outside of the partition box (5) and is connected to a controllable air source.

4. The facultative anaerobic fermentation reactor for organic waste according to claim 1, characterized in that: The stirring structure includes a stirring rod (19), the tail end of which is mounted on a stirring shaft (7), and the other end is provided with a scraper (20), the outer end of which slides against the inner wall of the fermenter (1).

5. The facultative anaerobic fermentation reactor for organic waste according to claim 4, characterized in that: The transmission ratio adjustment structure includes an adjustment box (21). The bottom end of the first shaft segment (9), the top end of the third shaft segment (11), and both ends of the second shaft segment (10) extend into the corresponding adjustment box (21) through bearings and are provided with transmission gears (22). The adjustment box (21) is equipped with a transmission ratio adjustment gear (23) through bearings. The upper and lower ends of the transmission ratio adjustment gear (23) are respectively provided with a first tooth (24) and a second tooth (25). The first tooth (24) and the second tooth (25) mesh with the corresponding transmission gear (22) in the same adjustment box (21) with different transmission ratios.

6. The facultative anaerobic fermentation reactor for organic waste according to claim 4, characterized in that: The temperature and humidity detection component includes a temperature and humidity detection frame (26), one end of which is installed on the inner wall of the fermentation tank (1), and the other end is evenly provided with multiple protective net covers (27), and a temperature and humidity meter (28) is installed inside the protective net cover (27).

7. The facultative anaerobic fermentation reactor for organic waste according to claim 1, characterized in that: The gas delivery structure includes an air blowing pipe (29), which is located at the bottom of the pretreatment zone (2), the main fermentation zone (3) and the post-ripening zone (4). Multiple air blowing heads (30) are evenly arranged on the air blowing pipe (29). The input end of the air blowing pipe (29) is connected to a controllable oxygen source. An air outlet hood (31) is provided on the top side wall of the pretreatment zone (2), the main fermentation zone (3) and the post-ripening zone (4). A gas collecting pipe (32) is provided at the output end of the air outlet hood (31). A gas collecting device is connected to the gas collecting pipe (32). A protective mesh plate (33) is provided at one end of the air outlet hood (31) connected to the fermentation tank (1).

8. The facultative anaerobic fermentation reactor for organic waste according to claim 1, characterized in that: A spray pipe (34) is provided at the top of the pretreatment zone (2), and the spray pipe (34) is connected to a spray water source.

9. The facultative anaerobic fermentation reactor for organic waste according to claim 1, characterized in that: The fermenter (1) is provided with a feed pipe (35) at the top and a discharge pipe (36) at the bottom, and a spiral blade (37) is provided at the bottom of the third shaft section (11).

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