Livestock and poultry manure compost fermentation equipment based on antibiotic influence exploration

Abstract

The invention relates to the technical field of biological agriculture and related industries, and discloses livestock and poultry manure compost fermentation equipment based on antibiotic influence exploration, the livestock and poultry manure compost fermentation equipment comprises a fermentation tank with a feed valve and a discharge valve, and a support frame arranged at the bottom of the fermentation tank, a mixing rod communicated with the interior of the rotating cylinder is arranged on the cylinder wall of the rotating cylinder, an air inlet pipe is arranged at the bottom of the rotating cylinder, and a vent hole is formed in the top of the fermentation tank; the material mixing rod comprises an L-shaped plate arranged on the cylinder wall of the rotating cylinder, an inclined plate arranged on the outer wall of the L-shaped plate and crushing teeth arranged on the outer wall of the inclined plate; a first oxygen feeding hole is formed in the outer wall of the vertical section of the L-shaped plate, and a second oxygen feeding hole is formed in the bottom face of the transverse section of the L-shaped plate. The device overcomes the defect that in the prior art, oxygen supplementation cannot be dynamically regulated and controlled according to the internal temperature and the anoxic state of a pile body.

Description

Technical Field

[0001] This invention relates to the technical field of bio-agriculture and related industries, and in particular to a livestock and poultry manure composting and fermentation equipment based on the study of the effects of antibiotics. Background Technology

[0002] Against the backdrop of the large-scale development of livestock and poultry farming, the resource-based treatment of livestock and poultry manure (such as chicken manure) has become a key link in the sustainable development of bio-agriculture and related industries. Composting fermentation is widely used as an important technical means to achieve the harmlessness, reduction and resource utilization of manure. Among them, aerobic composting fermentation can effectively degrade organic matter, antibiotic residues and pathogenic microorganisms in manure and transform them into high-value organic fertilizer.

[0003] However, in the composting process, existing aerobic composting fermentation equipment, by aerating from the bottom of the livestock and poultry manure pile, can oxygenate the entire pile, but it cannot detect local oxygen deficiency in a timely manner, making it difficult to accurately control the frequency of oxygen supply to specific areas. If there is local oxygen deficiency, microbial metabolic activity will be hindered, antibiotic degradation efficiency will be greatly reduced, and the degree of composting maturity may be inconsistent, affecting the quality of the final product. On the other hand, excessive oxygen supply will lead to excessively high overall temperature of the compost material, resulting in excessive consumption of organic matter and reducing the fertilizer efficiency of the compost product. Summary of the Invention

[0004] Given that existing technologies can oxygenate the entire livestock and poultry manure pile, but cannot detect local oxygen deficiency in a timely manner and are difficult to accurately control the frequency of oxygen supply to local areas, a livestock and poultry manure composting and fermentation device based on the study of the effects of antibiotics is proposed.

[0005] This application provides a livestock and poultry manure composting and fermentation equipment based on the study of the effects of antibiotics. Its purpose is to take into account the oxygen demand logic of different stages of livestock and poultry manure composting, achieve efficient oxygen supply and energy saving, effectively promote antibiotic degradation, and ensure the quality of organic fertilizer.

[0006] The technical solution of the present invention is as follows: a livestock and poultry manure composting and fermentation device based on the study of the effects of antibiotics, comprising a fermentation tank with an inlet valve and an outlet valve, and a support frame set at the bottom of the fermentation tank. A rotating cylinder is rotatably arranged inside the fermentation tank. A mixing rod communicating with the inside of the rotating cylinder is arranged on the cylinder wall. An air inlet pipe is arranged at the bottom of the rotating cylinder, and a ventilation hole is arranged at the top of the fermentation tank. The mixing rod includes an L-shaped plate arranged on the cylinder wall, an inclined plate arranged on the outer wall of the L-shaped plate, and a crushing tooth arranged on the outer wall of the inclined plate. A first oxygen supply hole is opened on the outer wall of the vertical section of the L-shaped plate, and a second oxygen supply hole is opened on the bottom surface of the horizontal section of the L-shaped plate. A first control component for controlling the ventilation of the first oxygen supply hole is arranged on the L-shaped plate, and a second control component for controlling the ventilation of the second oxygen supply hole is also arranged on the L-shaped plate.

[0007] Furthermore, an exhaust fan is installed on the outer wall of the support frame, and the air inlet of the exhaust fan is connected to the external oxygen generation equipment. The air inlet of the air inlet pipe is connected to the air outlet of the exhaust fan through a ventilation pipe.

[0008] Furthermore, the first control component includes a fixing block disposed on the inner wall of the vertical section of the L-shaped plate, a baffle slidably disposed on the outer wall of the fixing block, an elastic element disposed between the fixing block and the baffle, and a connecting rod disposed on the outer wall of the baffle.

[0009] Furthermore, the first control component also includes a roller rotatably mounted on the end of the connecting rod away from the baffle, a lifting cylinder slidably mounted inside the fermenter, and a slide rail mounted on the inner wall of the lifting cylinder. The roller is located outside the L-shaped plate, the rod wall of the connecting rod slides against the outer wall of the L-shaped plate, and the side of the slide rail near the roller is inclined.

[0010] Furthermore, the inner wall at the bottom of the lifting cylinder is sharpened.

[0011] Furthermore, the first control component also includes a guide groove on the bottom surface of the lifting cylinder, a first threaded groove on the bottom surface of the lifting cylinder, a threaded rod rotatably disposed on the bottom surface of the inner wall of the fermenter, a guide rod disposed on the bottom surface of the inner wall of the fermenter, and a drive motor disposed on the bottom surface of the outer wall of the fermenter. The axial end of the drive motor is fixedly connected to the bottom end of the threaded rod, and the outer wall of the threaded rod is threadedly connected to the inner wall of the first threaded groove.

[0012] Furthermore, the second control component includes a temperature control lever disposed on the inner wall of the transverse section of the L-shaped plate and corresponding to the position of the second oxygen supply hole. One end of the temperature control lever is fixedly connected to the inner wall of the transverse section of the L-shaped plate, and the other end of the temperature control lever is movably disposed. The temperature control lever is composed of a first metal plate and a second metal plate, and the first metal plate and the second metal plate have different coefficients of thermal expansion. When the temperature of the livestock and poultry manure compost reaches the peak of fermentation in a local area, the first metal plate and the second metal plate corresponding to the position bend and no longer block the second oxygen supply hole at that position.

[0013] Furthermore, the second control component also includes a mounting plate disposed on the inner wall of the transverse section of the L-shaped plate and a pressure plate slidably disposed on the outer wall of the mounting plate for controlling the degree of deformation of the temperature control lever.

[0014] Furthermore, the second control component also includes a positioning hole on the outer wall of the mounting plate and a bolt on the pressure plate, wherein the outer wall of the bolt is threadedly connected to the inner wall of the positioning hole.

[0015] Furthermore, the outer wall of the fermenter is provided with a mounting frame, the outer wall of the mounting frame is provided with a feed hopper corresponding to the position of the feed valve, and a feeding hopper is slidably provided on the outer wall of the mounting frame.

[0016] The beneficial effects of this invention are as follows: 1. In the early stage of composting, the first oxygen supply hole is opened by the first control component, and the strong power of the induced draft fan is combined to achieve large-area and high-dose oxygen supply, avoiding anaerobic fermentation of manure; during the high-temperature period, the temperature control plate is used in conjunction with the second oxygen supply hole to trigger local oxygen supplementation by utilizing the difference in thermal expansion of metals. Moreover, when there is no strong power of the induced draft fan, the oxygen supply is more concentrated, effectively preventing overexposure. At the same time, the pressure plate can adjust the temperature response threshold of the temperature control plate to adapt to different composting scenarios, solving the problems of uneven oxygen supply and inaccurate timing in traditional equipment.

[0017] 2. Driven by the rotating drum, multiple mixing rods break up clumps through crushing teeth and lift the material height with inclined plates, significantly increasing the contact area between manure and oxygen. Mixing rods of different heights can cover each layer of material in the fermentation tank. Combined with the layered oxygen supply from the first oxygen supply hole, it ensures that the fermentation state of each area of ​​the pile is consistent, reduces local differences in maturity, and creates a more stable environment for antibiotic degradation.

[0018] 3. By using a temperature-controlled fin, when the internal temperature of the compost reaches a certain threshold, the second oxygen supply hole can be opened mechanically to supply oxygen. In terms of temperature response accuracy, the contact between the pressure plate and the temperature-controlled fin limits the range of its free deformation. When the sliding pressure plate is close to the bending direction of the temperature-controlled fin, the fin needs a greater temperature increase to overcome the obstruction of the pressure plate and complete the bending action, thereby increasing the temperature threshold for triggering the opening of the second oxygen supply hole. Conversely, when the pressure plate is far away, the temperature-controlled fin can bend at a lower temperature, reducing the trigger temperature. This allows the equipment to adapt to the composting needs of different types of livestock and poultry manure (such as chicken manure and cow manure, whose starting temperatures during high-temperature periods are slightly different due to differences in composition) or different antibiotic residues, ensuring that the timing of oxygen supplementation is highly matched with the actual state of the compost. Attached Figure Description

[0019] Figure 1 This is a perspective view of the present invention;

[0020] Figure 2 This is a schematic diagram of the installation of the vent in this invention;

[0021] Figure 3 This is a schematic diagram of the interior of the fermenter in this invention;

[0022] Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle;

[0023] Figure 5 This is a perspective view of the rotating cylinder in this invention;

[0024] Figure 6 This is a perspective view of the mixing rod in this invention;

[0025] Figure 7 This is a schematic diagram of the interior of the L-shaped plate in this invention;

[0026] Figure 8 For the present invention Figure 7 Enlarged view of point B in the middle;

[0027] Figure 9 This is a perspective view of the temperature control lever in this invention;

[0028] Figure 10 This is a schematic diagram of the installation of the temperature control lever in this invention;

[0029] Figure 11 This is a cross-sectional view of the lifting cylinder in this invention.

[0030] In the picture:

[0031] 1. Fermentation tank; 2. Support frame; 3. Feed hopper; 4. Mounting frame; 5. Feeding hopper; 6. Rotating cylinder; 7. Mixing rod; 8. L-shaped plate; 9. Inclined plate; 10. First oxygen supply hole; 11. Fixing block; 12. Baffle; 13. Connecting rod; 14. Roller; 15. Elastic element; 16. Lifting cylinder; 17. Slide rail; 18. Guide groove; 19. First threaded groove; 20. Threaded rod; 21. Guide rod; 22. Air inlet pipe; 23. Exhaust fan; 24. Ventilation pipe; 25. Ventilation hole; 26. Second oxygen supply hole; 27. Temperature control lever; 28. First metal plate; 29. ​​Second metal plate; 30. Mounting plate; 31. Pressure plate; 32. Positioning hole; 33. Bolt; 34. Crushing teeth; 35. Drive motor; 36. Feed valve; 37. Discharge valve. Detailed Implementation

[0032] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0033] Example 1, referring to Figure 1 - Figure 11This is the first embodiment of the present invention, which provides a livestock and poultry manure composting and fermentation device based on the study of the effects of antibiotics. The device includes a fermentation tank 1 with an inlet valve 36 and an outlet valve 37, and a support frame 2 fixedly installed at the bottom of the fermentation tank 1. A hollow rotating cylinder 6 is rotatably installed inside the fermentation tank 1. A mixing rod 7, which communicates with the interior of the rotating cylinder 6, is fixedly installed on the cylinder wall. An air inlet pipe 22 is fixedly installed at the bottom of the rotating cylinder 6. A vent hole 25 is provided at the top of the fermentation tank 1. The mixing rod 7 includes an L-shaped plate 8 fixedly installed on the cylinder wall of the rotating cylinder 6, an inclined plate 9 fixedly installed on the outer wall of the L-shaped plate 8, and crushing teeth 34 fixedly installed on the outer wall of the inclined plate 9. A first oxygen supply hole 10 is provided on the outer wall of the vertical section of the L-shaped plate 8, and a second oxygen supply hole 26 is provided on the bottom surface of the horizontal section of the L-shaped plate 8. A first control component for controlling the ventilation of the first oxygen supply hole 10 and a second control component for controlling the ventilation of the second oxygen supply hole 26 are also provided on the L-shaped plate 8.

[0034] Specifically, the rotation of the rotating drum 6 can be driven by a geared motor or a variable frequency motor + reducer, which are common in the prior art. The specific method can be determined according to the actual use requirements. No specific restrictions are made here. Multiple mixing rods 7 are provided, and the multiple mixing rods 7 are located at different heights.

[0035] By controlling the rotation of the rotating drum 6, multiple mixing rods 7 can be driven to rotate. The multiple mixing rods 7 can agitate the livestock and poultry manure inside the fermentation tank 1. At the same time, the crushing teeth 34 can crush the clumps of livestock and poultry manure, effectively increasing the contact area between the livestock and poultry manure and oxygen. The inclined plate 9 can lift the livestock and poultry manure to a certain height. Combined with the first oxygen supply hole 10, the contact area between the livestock and poultry manure and oxygen can be further increased. The L-shaped plate 8 provides installation space for the first control component and the second control component.

[0036] Reference Figure 1 - Figure 2 A mounting frame 4 is fixedly installed on the outer wall of the fermenter 1. A feed hopper 3 corresponding to the position of the feed valve 36 is fixedly installed on the outer wall of the mounting frame 4. A feeding hopper 5 is slidably installed on the outer wall of the mounting frame 4. An induced draft fan 23 is fixedly installed on the outer wall of the support frame 2. The air inlet end of the induced draft fan 23 is connected to an external oxygen generating device. The air inlet end of the air inlet pipe 22 is connected to the air outlet end of the induced draft fan 23 through a ventilation pipe 24.

[0037] Specifically, the external oxygen generating device can be an oxygen generator commonly used in the prior art, or the air inlet end of the air inlet pipe 22 can be directly connected to the air in the external environment.

[0038] During the feeding stage, livestock and poultry manure is transported to the feeding hopper 3 through the feeding hopper 5, and the feeding valve 36 is opened so that the material enters the fermentation tank 1.

[0039] In the early stage of composting fermentation, the oxygen generated by the external oxygen-generating equipment is transported to the mixing rod 7 through the ventilation pipe 24, the air inlet pipe 22, and the rotating drum 6 by the blower 23. Finally, a large amount of oxygen is supplied to the fermentation tank 1 through the first oxygen supply hole 10. At the same time, the rotating drum 6 drives multiple mixing rods 7 to rotate, and multiple first oxygen supply holes 10 can evenly provide oxygen to livestock and poultry manure at different heights and positions.

[0040] Reference Figure 7 - Figure 8 The first control component includes a fixing block 11 fixedly installed on the inner wall of the vertical section of the L-shaped plate 8, a baffle 12 slidably installed on the outer wall of the fixing block 11, an elastic element 15 disposed between the fixing block 11 and the baffle 12, and a connecting rod 13 fixedly installed on the outer wall of the baffle 12.

[0041] Specifically, one end of the elastic element 15 is fixedly connected to the outer wall of the fixed block 11, and the other end of the elastic element 15 is fixedly connected to the outer wall of the baffle 12. The elastic element 15 can be a compression spring or a return spring commonly used in the prior art. Here, a compression spring is preferred. In the initial stage, the baffle 12 can simultaneously block multiple first oxygen supply holes 10. By sliding the baffle 12, multiple first oxygen supply holes 10 can be ventilated simultaneously.

[0042] Reference Figure 3 - Figure 4 The first control component also includes a roller 14 rotatably mounted on the end of the connecting rod 13 away from the baffle 12, a lifting cylinder 16 slidably mounted inside the fermentation tank 1, and a slide rail 17 fixedly mounted on the inner wall of the lifting cylinder 16. The roller 14 is located outside the L-shaped plate 8, the rod wall of the connecting rod 13 slides against the outer wall of the L-shaped plate 8, and the slide rail 17 is inclined on the side near the roller 14.

[0043] Specifically, in the initial stage of composting, by controlling the rise of the lifting cylinder 16 on the inner wall of the fermentation tank 1, the slide rail 17 on the inner wall of the lifting cylinder 16 contacts the roller 14 on the L-shaped plate 8. Since the side of the slide rail 17 near the roller 14 is inclined, the roller 14 can drive the baffle 12 blocking the first oxygen supply hole 10 to move after being squeezed. At this time, multiple first oxygen supply holes 10 open simultaneously, and the rotating mixing rod 7 cooperates with the first oxygen supply holes 10 to supply oxygen to the fermentation tank 1 in a large amount, which can quickly meet the aerobic reproduction needs of microorganisms in the early stage, effectively prevent the feces from entering the anaerobic state due to lack of oxygen, and solve the problem of fermentation lag caused by insufficient or uneven oxygen supply in the early stage of the existing technology.

[0044] After the initial stage of composting is completed, when the livestock and poultry manure no longer needs a large amount of oxygen supply, the lifting cylinder 16 is lowered by controlling the slide rail 17 to separate from the roller 14. Under the action of the elastic element 15, the baffle 12 can be reset and the multiple first oxygen supply holes 10 can be blocked again. At this time, the rotating cylinder 6 can still be controlled to rotate, so that the multiple mixing rods 7 can continue to crush and mix the livestock and poultry manure.

[0045] Reference Figure 11 The inner wall at the bottom of the lifting cylinder 16 is sharp.

[0046] Specifically, by means of the sharp inner wall of the bottom of the lifting cylinder 16, when the lifting cylinder 16 descends, the livestock and poultry manure at the bottom of the lifting cylinder 16 can be pushed towards the inside of the fermentation tank 1, ensuring the smooth descent of the lifting cylinder 16.

[0047] Reference Figure 1 - Figure 4 The first control component also includes a guide groove 18 formed on the bottom surface of the lifting cylinder 16, a first threaded groove 19 formed on the bottom surface of the lifting cylinder 16, a threaded rod 20 rotatably mounted on the bottom surface of the inner wall of the fermentation tank 1, a guide rod 21 fixedly mounted on the bottom surface of the inner wall of the fermentation tank 1, and a drive motor 35 fixedly mounted on the bottom surface of the outer wall of the fermentation tank 1. The axial end of the drive motor 35 is fixedly connected to the bottom end of the threaded rod 20, and the outer wall of the threaded rod 20 is threadedly connected to the inner wall of the first threaded groove 19.

[0048] Specifically, the drive motor 35 can be a stepper motor or servo motor commonly used in the prior art. The specific choice can be determined according to the application requirements and no restrictions are imposed here. By controlling the operation of the drive motor 35, the threaded rod 20 can be driven to rotate. Combined with the limiting of the guide rod 21 and the guide groove 18, the rotation of the threaded rod 20 can drive the lifting cylinder 16 to rise and fall.

[0049] Example 2, refer to Figure 1 - Figure 11 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the second control component includes a temperature control lever 27 disposed on the inner wall of the transverse section of the L-shaped plate 8 and corresponding to the position of the second oxygen supply hole 26. One end of the temperature control lever 27 is fixedly connected to the inner wall of the transverse section of the L-shaped plate 8, and the other end of the temperature control lever 27 is movably disposed. The temperature control lever 27 is composed of a first metal plate 28 and a second metal plate 29, and the thermal expansion coefficients of the first metal plate 28 and the second metal plate 29 are different. When the temperature of the livestock and poultry manure compost reaches the peak of fermentation in a local area, the first metal plate 28 and the second metal plate 29 corresponding to the position bend and no longer block the second oxygen supply hole 26 at that position.

[0050] Specifically, after the initial stage of composting, the connection between the ventilation pipe 24 and the induced draft fan 23 is disconnected, allowing the ventilation pipe 24 to connect directly to the external oxygen generator. Since the external oxygen generator maintains a certain output pressure, it provides the basic power for oxygen delivery, allowing oxygen to flow along the ventilation pipe 24, the air inlet pipe 22, and the rotating cylinder 6 into the mixing rod 7. Simultaneously, during the high-temperature period of composting, the vigorous activity of local microorganisms consumes surrounding oxygen, creating a slight negative pressure and a pressure difference that propels oxygen from the second oxygen delivery hole 26 to the oxygen-deficient area. Furthermore, when the rotating cylinder 6 drives the mixing rod 7 to rotate, it disturbs the surrounding materials, indirectly promoting oxygen diffusion and ensuring that the oxygen from the second oxygen delivery hole 26 can effectively reach the livestock manure, meeting the local oxygen supplementation needs.

[0051] During the high-temperature reaction stage of localized livestock and poultry manure composting, the second oxygen supply hole 26 is opened by the second control component to provide oxygen to the localized livestock and poultry manure compost that requires oxygen. Since the strong power of the blower 23 is not required, the oxygen supply of the second oxygen supply hole 26 is relatively small, and it mainly targets specific areas with high temperature and oxygen deficiency for oxygen supplementation. The oxygen supply range is more concentrated and precise, avoiding overexposure caused by large-scale strong oxygen supply, and can better adapt to the precise oxygen demand of localized areas during the high-temperature period of composting.

[0052] When the local temperature of the livestock and poultry manure compost reaches 50-70℃, the temperature control lever 27 (composed of a first metal plate 28 and a second metal plate 29 with different coefficients of thermal expansion) inside the L-shaped plate 8, corresponding to the second oxygen supply hole 26, bends due to the temperature increase and no longer blocks the second oxygen supply hole 26. The first metal plate 28 and the second metal plate 29 can be made of metals with significantly different coefficients of thermal expansion to ensure that the temperature control lever 27 can be stably bent within the temperature range of 50-70℃. The materials of the first metal plate 28 and the second metal plate 29 can be determined according to actual needs. For example, the first metal plate 28 can be made of brass (copper-zinc alloy) with a relatively high coefficient of thermal expansion, which is approximately 19×10 at 20-100℃. -6 The temperature is / ℃, and it is prone to significant expansion when heated. The second metal plate 29 can be made of Invar steel with a low coefficient of thermal expansion, which is approximately 1.2×10⁻⁶ in the range of room temperature to 100℃. -6 / ℃, with minimal deformation after heating.

[0053] When the local temperature of the compost rises to 50-70℃, the first metal plate 28 made of brass elongates significantly due to its large coefficient of thermal expansion, while the second metal plate 29 made of Invar steel hardly expands. The temperature control lever 27, which combines the two, bends toward the second metal plate 29, thus no longer blocking the second oxygen supply hole 26.

[0054] Reference Figure 7 - Figure 8The second control component also includes a mounting plate 30 fixedly installed on the inner wall of the transverse section of the L-shaped plate 8 and a pressure plate 31 slidably installed on the outer wall of the mounting plate 30 for controlling the degree of deformation of the temperature control lever 27.

[0055] Specifically, the degree of deformation of the temperature control lever 27 can be controlled by the position of the sliding pressure plate 31.

[0056] Reference Figure 7 - Figure 8 The second control component also includes a positioning hole 32 opened on the outer wall of the mounting plate 30 and a bolt 33 provided on the pressure plate 31, and the outer wall of the bolt 33 is threadedly connected to the inner wall of the positioning hole 32.

[0057] Specifically, multiple positioning holes 32 are provided, and the position of the pressure plate 31 can be fixed by screwing the bolt 33 into one of the positioning holes 32.

[0058] In terms of temperature response accuracy, the pressure plate 31, through contact with the temperature control lever 27, can limit the range of its free deformation. When the sliding pressure plate 31 is close to the bending direction of the temperature control lever 27, the temperature control lever 27 needs a greater temperature increase to overcome the obstruction of the pressure plate 31 and complete the bending action, thereby increasing the temperature threshold for triggering the opening of the second oxygen supply hole 26. Conversely, when the pressure plate 31 is far away, the temperature control lever 27 can bend at a lower temperature, reducing the trigger temperature. This allows the equipment to adapt to the composting needs of different types of livestock and poultry manure (such as chicken manure and cow manure, whose starting temperatures during high-temperature periods are slightly different due to differences in composition) or different antibiotic residues, ensuring that the timing of oxygen supplementation is highly matched with the actual state of composting.

[0059] In terms of equipment adaptability and stability, the multiple positioning holes 32 and the fixing method of bolts 33 can stably lock the pressure plate 31 in the preset position. At the same time, by changing the position of the pressure plate 31, the metal fatigue or deformation error of the temperature control plate 27 due to long-term use can be compensated, thus extending its service life.

[0060] The remaining structure is the same as that in Example 1.

[0061] Working principle:

[0062] During the feeding stage, livestock and poultry manure is transported to the feeding hopper 3 through the feeding hopper 5, and the feeding valve 36 is opened so that the material enters the fermentation tank 1.

[0063] In the early stage of composting fermentation, the oxygen generated by the external oxygen-generating equipment is transported to the mixing rod 7 through the ventilation pipe 24, the air inlet pipe 22, and the rotating cylinder 6 by the blower 23. Finally, a large amount of oxygen is supplied to the fermentation tank 1 through the first oxygen supply hole 10. At the same time, the rotating cylinder 6 drives multiple mixing rods 7 to rotate, and multiple first oxygen supply holes 10 can evenly provide oxygen to livestock and poultry manure at different heights and positions.

[0064] By controlling the rise of the lifting cylinder 16 on the inner wall of the fermentation tank 1, the slide rail 17 on the inner wall of the lifting cylinder 16 contacts the roller 14 on the L-shaped plate 8. Since the side of the slide rail 17 near the roller 14 is inclined, the roller 14 can drive the baffle 12 blocking the first oxygen supply hole 10 to move after being squeezed. At this time, multiple first oxygen supply holes 10 open simultaneously, and the rotating mixing rod 7 cooperates with the first oxygen supply holes 10 to supply oxygen to the fermentation tank 1 in a large amount, which can quickly meet the aerobic reproduction needs of microorganisms in the early stage, effectively prevent the feces from entering the anaerobic state due to lack of oxygen, and solve the problem of fermentation lag caused by insufficient or uneven oxygen supply in the early stage in the existing technology.

[0065] After the initial stage of composting, when the livestock and poultry manure no longer needs a large amount of oxygen supply, the lifting cylinder 16 is lowered by controlling the slide rail 17 to separate from the roller 14. Under the action of the elastic element 15, the baffle 12 can be reset, blocking multiple first oxygen supply holes 10 again. At this time, the rotating cylinder 6 can still be controlled to rotate, so that multiple mixing rods 7 can continue to crush and mix the livestock and poultry manure.

[0066] Then disconnect the connection between the ventilation pipe 24 and the induced draft fan 23, so that the ventilation pipe 24 is directly connected to the external oxygen generation equipment. When the local temperature of the livestock and poultry manure compost reaches 50-70℃, the temperature control plate 27 (composed of a first metal plate 28 and a second metal plate 29 with different coefficients of thermal expansion) inside the L-shaped plate 8 and corresponding to the second oxygen supply hole 26 bends due to the temperature rise and no longer blocks the second oxygen supply hole 26. At this time, oxygen is precisely supplied to the local hypoxic area during the high temperature period through the second oxygen supply hole 26. In this process, timely oxygen supply is ensured during the local hypoxic period of the compost, and overexposure is avoided because it is only turned on at a specific temperature. This makes up for the shortcomings of the existing technology that cannot dynamically control oxygen supply according to the internal temperature and hypoxic state of the compost.

[0067] After composting is complete, open the discharge valve 37 to discharge the compost products.

[0068] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A livestock and poultry manure composting and fermentation device based on an investigation of the effects of antibiotics, comprising a fermentation tank (1) with an inlet valve (36) and an outlet valve (37) and a support frame (2) disposed at the bottom of the fermentation tank (1), characterized in that, The fermentation tank (1) is equipped with a rotating cylinder (6) inside. The cylinder wall of the rotating cylinder (6) is equipped with a mixing rod (7) that communicates with the inside of the rotating cylinder (6). The bottom of the rotating cylinder (6) is equipped with an air inlet pipe (22), and the top of the fermentation tank (1) is equipped with a ventilation hole (25). The mixing rod (7) includes an L-shaped plate (8) disposed on the wall of the rotating cylinder (6), an inclined plate (9) disposed on the outer wall of the L-shaped plate (8), and a crushing tooth (34) disposed on the outer wall of the inclined plate (9); The vertical section of the L-shaped plate (8) has a first oxygen supply hole (10) on its outer wall, and the horizontal section of the L-shaped plate (8) has a second oxygen supply hole (26) on its bottom surface. The L-shaped plate (8) is provided with a first control component for controlling the ventilation of the first oxygen supply hole (10), and the L-shaped plate (8) is also provided with a second control component for controlling the ventilation of the second oxygen supply hole (26).

2. The livestock and poultry manure composting and fermentation equipment based on the study of the effects of antibiotics according to claim 1, characterized in that: The outer wall of the support frame (2) is provided with an exhaust fan (23), and the air inlet end of the exhaust fan (23) is connected to an external oxygen generating device. The air inlet end of the air inlet pipe (22) is connected to the air outlet end of the exhaust fan (23) through a ventilation pipe (24).

3. The livestock and poultry manure composting and fermentation equipment based on the study of the effects of antibiotics according to claim 2, characterized in that: The first control component includes a fixing block (11) disposed on the inner wall of the vertical section of the L-shaped plate (8), a baffle (12) slidably disposed on the outer wall of the fixing block (11), an elastic element (15) disposed between the fixing block (11) and the baffle (12), and a connecting rod (13) disposed on the outer wall of the baffle (12).

4. The livestock and poultry manure composting and fermentation equipment based on the study of the effects of antibiotics according to claim 3, characterized in that: The first control component also includes a roller (14) rotatably disposed on the end of the connecting rod (13) away from the baffle (12), a lifting cylinder (16) slidably disposed inside the fermenter (1), and a slide rail (17) disposed on the inner wall of the lifting cylinder (16). The roller (14) is located outside the L-shaped plate (8), the rod wall of the connecting rod (13) slides against the outer wall of the L-shaped plate (8), and the slide rail (17) is inclined on the side near the roller (14).

5. The livestock and poultry manure composting and fermentation equipment based on the study of the effects of antibiotics according to claim 4, characterized in that: The inner wall at the bottom of the lifting cylinder (16) is sharp.

6. The livestock and poultry manure composting and fermentation equipment based on the study of the effects of antibiotics according to claim 5, characterized in that: The first control component also includes a guide groove (18) on the bottom surface of the lifting cylinder (16), a first threaded groove (19) on the bottom surface of the lifting cylinder (16), a threaded rod (20) rotatably disposed on the bottom surface of the inner wall of the fermentation tank (1), a guide rod (21) disposed on the bottom surface of the inner wall of the fermentation tank (1), and a drive motor (35) disposed on the bottom surface of the outer wall of the fermentation tank (1). The axial end of the drive motor (35) is fixedly connected to the bottom end of the threaded rod (20), and the outer wall of the threaded rod (20) is threadedly connected to the inner wall of the first threaded groove (19).

7. The livestock and poultry manure composting and fermentation equipment based on the study of the effects of antibiotics according to claim 1, characterized in that: The second control component includes a temperature control lever (27) disposed on the inner wall of the transverse section of the L-shaped plate (8) and corresponding to the position of the second oxygen supply hole (26), and one end of the temperature control lever (27) is fixedly connected to the inner wall of the transverse section of the L-shaped plate (8), and the other end of the temperature control lever (27) is movably disposed. The temperature control lever (27) is composed of a first metal plate (28) and a second metal plate (29), and the thermal expansion coefficients of the first metal plate (28) and the second metal plate (29) are different. When the temperature of the local fermentation peak of the livestock and poultry manure compost reaches the peak, the first metal plate (28) and the second metal plate (29) corresponding to the position bend and no longer block the second oxygen supply hole (26) at that position.

8. The livestock and poultry manure composting and fermentation equipment based on the study of the effects of antibiotics according to claim 7, characterized in that: The second control component also includes a mounting plate (30) disposed on the inner wall of the transverse section of the L-shaped plate (8) and a pressure plate (31) slidably disposed on the outer wall of the mounting plate (30) for controlling the degree of deformation of the temperature control lever (27).

9. The livestock and poultry manure composting and fermentation equipment based on the study of the effects of antibiotics according to claim 8, characterized in that: The second control component also includes a positioning hole (32) opened on the outer wall of the mounting plate (30) and a bolt (33) provided on the pressure plate (31), and the outer wall of the bolt (33) is threadedly connected to the inner wall of the positioning hole (32).

10. The livestock and poultry manure composting and fermentation equipment based on the study of the effects of antibiotics according to claim 1, characterized in that: The fermenter (1) is provided with an installation frame (4) on its outer wall. The installation frame (4) is provided with a feed hopper (3) corresponding to the position of the feed valve (36) on its outer wall. The installation frame (4) is also provided with a slidable feeding hopper (5).

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