Equipment for preparing agricultural microbial fertilizer from livestock manure

Abstract

The invention relates to the technical field of microbial fertilizer fermentation, and discloses a device for preparing an agricultural microbial fertilizer from livestock manure, the device comprises a fermentation tank, the outer wall of the fermentation tank is fixedly provided with a heating device, the interior of the fermentation tank is divided into a lower fermentation area and an upper cleaning area, a trapping assembly capable of being adjusted in a sliding mode along the center axis of the fermentation tank is installed in the center in the fermentation tank. The low-temperature state of the trapping assembly is maintained through the circulating assembly, and the radial temperature gradient decreasing from the tank wall to the center is formed in the fermentation tank; driving the molten lipoprotein to directionally migrate from the high-temperature tank wall area to the surface of the low-temperature trapping assembly by virtue of a thermophoresis effect excited by the gradient environment; the surface temperature, lower than the freezing point of lipoprotein, of the trapping assembly is utilized to promote hydrogen bonds of lipoprotein migrated to the trapping assembly to recombine and stably attach, and the crusting risk of the tank wall is thoroughly avoided; the trapping assembly after lipoprotein enrichment slides to a cleaning area through the external driving assembly, and surface attachments are efficiently removed through the cleaning assembly.

Description

Technical Field

[0001] The invention relates to the technical field of microbial fertilizer fermentation, in particular to equipment for preparing agricultural microbial fertilizer from livestock excrement. Background Art

[0002] Livestock manure pollution has become the main source of agricultural non-point source pollution. Its resource utilization is crucial to environmental protection and soil health. Existing equipment converts manure into microbial fertilizer through processes such as solid-liquid separation and aerobic fermentation. The current technical core lies in achieving harmless treatment and resource conversion of waste, and providing a stable fertilizer source for green agriculture. For example, Chinese patent publication number CN222226211U discloses a reactor for the bio-conversion of livestock manure into organic fertilizer, which relates to the field of microbial fertilizer fermentation. The reactor for the bio-conversion of livestock manure into organic fertilizer described in the utility model includes a culture tank, a first air inlet groove is provided at the side end of the culture tank, a track ring groove is fixedly connected to the side end of the culture tank, a rotating ring shell is slidably connected to the outer end of the culture tank, and a second air inlet groove is provided in the rotating ring shell. When it is necessary to oxygenate or cool the culture material in the culture tank, the No. 1 motor will drive the rotating ring shell to rotate in the track ring groove, so that the second air inlet groove is connected with the first air inlet groove, thereby allowing air to circulate in the culture tank. The No. 2 motor is used to drive the spiral push rod to rotate, so as to turn the culture material in the culture tank, thereby ensuring that it is fully ventilated and oxygenated and evenly heated. The device has the advantages of simple structure, easy operation and high degree of automation.

[0003] Although this type of feces preparation equipment can achieve basic harmless treatment and microbial fertilizer conversion, it cannot effectively control the high-temperature phase change behavior of lipid viscous components during the fermentation process, resulting in the continuous formation of an insulating hardened layer on the tank wall, causing the heat transfer efficiency to decay, and forming local hypoxic zones, which will extend the fermentation cycle and may lead to different degrees of fermentation. Summary of the Invention

[0004] The object of the present invention is to provide a device for preparing agricultural microbial fertilizer from livestock manure to solve at least one technical problem existing in the above-mentioned prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an apparatus for producing agricultural microbial fertilizer from livestock manure, comprising a fermentation tank, a heating device fixedly mounted on the outer wall of the fermentation tank, the interior of the fermentation tank being divided into a fermentation area at the bottom and a cleaning area at the top, and a trapping assembly mounted in the center of the fermentation tank that can slide and adjust along its central axis;

[0006] The invention also includes a circulation component, which can maintain the trapping component at a relatively low temperature, so that the trapping component cooperates with the heating device to form a radial temperature gradient decreasing from the tank wall to the center in the fermentation tank;

[0007] It also includes a cleaning component, which can clean the surface of the trapping component when the trapping component is in the cleaning area.

[0008] Preferably, the trapping assembly includes a guide rod fixedly installed between the top and the bottom of the fermentation tank, and the outer wall of the guide rod is installed with a third cleaning ring and a first cleaning ring that can be vertically slid and adjusted, and an elastic layer is fixedly connected between the first cleaning ring and the third cleaning ring.

[0009] Preferably, the cleaning assembly includes multiple groups of motion units distributed in an annular array between the third cleaning ring and the first cleaning ring, each group of the motion units includes a first connecting rod and a second connecting rod, wherein one end of the first connecting rod is rotatably mounted on the outer wall of the first cleaning ring, and the other end is rotatably connected to the second connecting rod, and the end of the second connecting rod away from the first connecting rod is rotatably mounted on the outer wall of the third cleaning ring. When the third cleaning ring and the first cleaning ring approach each other, the first connecting rod and the second connecting rod rotate synchronously and apply radial tensile stress to the elastic layer to cause it to deform.

[0010] Preferably, the circulation component includes a plurality of elastic ribs distributed in a circular array, and the two ends of each elastic rib are respectively fixedly connected to the outer walls of the first cleaning ring and the third cleaning ring, and a circulation channel is provided inside each elastic rib, and the first cleaning ring and the third cleaning ring are both provided with a water storage cavity, and the two ends of each circulation channel are respectively connected to the water storage cavity inside the corresponding cleaning ring, the water storage cavity inside the third cleaning ring is connected to a water inlet pipe, and the water storage cavity inside the first cleaning ring is connected to a water outlet pipe, and the water inlet pipe and the water outlet pipe are both connected to the external water circulation system.

[0011] Preferably, an isolation plate is fixedly connected to the inner wall of the fermentation tank, a through hole is opened in the center of the isolation plate, and the isolation plate divides the interior of the fermentation tank into an upper cleaning area and a lower fermentation area. A radial flange is provided on the top of the first cleaning ring, and an annular shoulder is provided on the bottom of the third cleaning ring, and the outer diameters of the flange and the shoulder are both larger than the inner diameter of the through hole of the isolation plate.

[0012] Preferably, when the third cleaning ring is at the bottom end, the first connecting rod and the second connecting rod are in a parallel and collinear state, forming a geometric self-locking structure, and a second incomplete gear is fixedly installed on the hinge shaft between the second connecting rod and the outer wall of the first cleaning ring. The outer wall of the first cleaning ring is also rotatably installed with a first incomplete gear that can engage with the second incomplete gear, and an unlocking protrusion that can rotate the second incomplete gear is fixedly installed on the top of the fermentation tank.

[0013] Preferably, a mounting cavity is fixedly connected to the top of the fermentation tank, the mounting cavity is communicated with the interior of the fermentation tank, a circular temperature control cavity is provided inside one side of the mounting cavity, the water inlet pipe is communicated with the temperature control cavity, the inner wall of the temperature control cavity away from the water inlet pipe is connected with a first connecting pipe and a second connecting pipe, the first connecting pipe and the second connecting pipe are respectively connected to two independent temperature control circuits in the water circulation system, a rotatable rotating disk is installed on the inner wall of the temperature control cavity, a V-shaped groove is provided on the rotating disk, and the water outlet pipe passes through the outer wall of the mounting cavity and is connected to the return end of the external water circulation system.

[0014] Preferably, an annular groove is provided on the inner wall of the temperature regulating chamber close to the water inlet pipe, an incomplete gear ring is rotatably installed on the inner wall of the annular groove, the incomplete gear ring is fixedly connected to the rotating disk, a rack is fixedly installed on the top of the first cleaning ring, and the rack can engage with the incomplete gear ring.

[0015] Preferably, several second cleaning rings are slidably installed on the outer wall of the guide rod, and the outer walls of the second cleaning rings are fixedly connected to the inner wall of the elastic layer, each of the second cleaning rings is rotatably installed with a first connecting rod and a second connecting rod on the outer wall, and every two corresponding first connecting rods are rotatably connected to the second connecting rods, a second incomplete gear is fixedly installed on the hinge shaft of each first connecting rod and the second connecting rod, and elastic ribs distributed in a ring array are fixedly installed between every two adjacent cleaning rings.

[0016] Preferably, a rotatable screw is installed between the bottom of the fermenter and the top of the installation cavity, and the screw passes through the third cleaning ring and is threadedly connected to the penetration point.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention maintains the low-temperature state of the trapping component through a circulation component, forming a radial temperature gradient decreasing from the tank wall to the center in the fermentation tank; with the help of the thermophoresis effect stimulated by the gradient environment, the molten lipoprotein is driven to migrate from the high-temperature tank wall area to the low-temperature trapping component surface; the surface temperature of the trapping component is lower than the solidification point of the lipoprotein, which promotes the hydrogen bond reorganization and stable attachment of the lipoprotein that migrates there, completely avoiding the risk of tank wall crusting; the trapping component enriched with lipoprotein is slid to the cleaning area through an external driving component, and the surface attachments are efficiently removed by the cleaning component; finally, the trapping component is reset to the center of the fermentation area, realizing a continuous cycle of trapping and cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A perspective view of the present invention;

[0020] Figure 2 It is a front cross-sectional view of the present invention;

[0021] Figure 3 A perspective view of a portion of the structure of the present invention;

[0022] Figure 4 For the present invention Figure 2 A magnified view of point A in the figure;

[0023] Figure 5 For the present invention Figure 2 Enlarged view of point B in FIG.

[0024] Figure 6 It is a cross-sectional schematic diagram during the switching process of the present invention;

[0025] Figure 7 It is a three-dimensional cross-sectional schematic diagram of the structure of the rotating disk of the present invention;

[0026] Figure 8 is a schematic cross-sectional view of the circulation component in the present invention;

[0027] Figure 9 is a schematic cross-sectional view of the cleaning component of the present invention;

[0028] Figure 10 It is a three-dimensional schematic diagram of the rack in the present invention.

[0029] In the figure: 1. Fermentation tank; 2. Heating device; 3. Feed port; 4. Mounting chamber; 5. Discharge port; 6. Isolation plate; 7. Screw; 8. Unlocking protrusion; 9. Water outlet pipe; 10. Water inlet pipe; 11. Elastic layer; 12. First cleaning ring; 14. First connecting rod; 15. Second connecting rod; 16. First incomplete gear; 17. Second incomplete gear; 18. Water storage chamber; 19. Third cleaning ring; 20. Elastic rib; 21. Second cleaning ring; 23. Rotating disk; 24. First connecting pipe; 25. Second connecting pipe; 26. Incomplete gear ring; 27. Guide rod; 28. V-groove; 29. Rack. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] See also Figures 1 to 10 The present invention provides a technical solution: an apparatus for producing agricultural microbial fertilizer from livestock manure, comprising a fermentation tank 1, a heating device 2 fixedly mounted on the outer wall of the fermentation tank 1, the interior of the fermentation tank 1 being divided into a fermentation area at the bottom and a cleaning area at the top, and a trapping assembly slidably adjustable along its central axis mounted in the center of the fermentation tank 1;

[0032] It also includes a circulation component, which can maintain a relatively low temperature of the trapping component, so that the trapping component cooperates with the heating device 2 to form a radial temperature gradient decreasing from the tank wall to the center in the fermentation tank 1;

[0033] It also includes a cleaning component, which can clean the surface of the trapping component when the trapping component is in the cleaning area.

[0034] See Figure 1 When fermenting fecal material, it is necessary to feed the preliminarily treated feces into the fermentation tank 1 from the feed port 3, and put the bacterial community therein, so that the inner wall of the fermentation tank 1 is fermented. During this process, it is necessary to heat to above 50 degrees Celsius (such as 52 degrees Celsius). At this time, the lipoprotein is in a molten state due to reaching the melting point, and there is a temperature gradient inside the fermentation tank 1 (such as 65 degrees Celsius in the center and 45 degrees Celsius in the tank wall), forming a thermophoresis effect, causing the molten lipoprotein to migrate to the low-temperature area (i.e., the tank wall). When the lipoprotein contacts the tank wall, due to the low temperature of the tank wall, the hydrogen bonds in the lipoprotein will be reorganized, causing the lipoprotein to adhere to the tank wall to form a film. The continuous superposition of the film will eventually harden into a shell, thereby reducing the heat transfer efficiency of the heating device 2, and the crust will hinder the diffusion of oxygen into the deep part of the material, making the oxygen concentration in this area low, thereby affecting the activity of the aerobic bacterial community.

[0035] Therefore, the present device is equipped with a trapping assembly for trapping lipoproteins. During the fermentation process, the trapping assembly reciprocates between the cleaning zone and the fermentation zone. The circulation assembly maintains the trapping assembly at a temperature significantly lower than the tank wall. This creates a radial temperature gradient within the fermenter 1, decreasing from the high-temperature zone of the tank wall to the low-temperature zone in the center. This gradient triggers a strong thermal surge effect, driving the reverse migration of molten lipoproteins (i.e., from the high-temperature zone of the tank wall to the surface of the trapping assembly). When the lipoproteins migrate to the surface of the trapping assembly, the temperature of the trapping assembly rapidly restructures their hydrogen bonds, stably adhering to the surface of the trapping assembly, thereby avoiding the risk of crusting on the tank wall. This process simultaneously ensures the cleanliness of the tank wall and efficient heat transfer, while effectively maintaining an oxygen diffusion environment deep within the material, providing stable conditions for the activity of aerobic bacteria. When lipoproteins accumulate on the surface of the trapping assembly to a specific thickness, the external drive assembly moves it to the cleaning zone above, where the cleaning assembly performs an efficient cleanup operation. After cleanup, it returns to the center of the fermentation zone, completing a continuous trapping and cleaning cycle. After complete fermentation, the fertilizer is collected from the discharge port 5.

[0036] Furthermore, the trapping assembly includes a guide rod 27 fixedly installed between the top and the bottom of the fermentation tank 1, and the outer wall of the guide rod 27 is installed with a third cleaning ring 19 and a first cleaning ring 12 that can be vertically slidably adjusted, and an elastic layer 11 is fixedly connected between the first cleaning ring 12 and the third cleaning ring 19.

[0037] See Figures 2 to 5 The guide rod 27 constrains the sliding track of the third cleaning ring 19 and the first cleaning ring 12 so that they can only move vertically up and down. The elastic layer 11 connects the two cleaning rings to form a retractable seal. When the equipment is running:

[0038] Fermentation position: The first cleaning ring 12 and the third cleaning ring 19 are driven by an external driving component to slide into the fermentation area, and the first cleaning ring 12 and the third cleaning ring 19 are in the farthest position. At this time, the elastic layer 11 is in an extended state, thereby increasing the trapping area. Under the action of the circulation component, the elastic layer 11 is kept at a lower temperature, thereby inducing lipoproteins to migrate to the outer wall of the elastic layer 11 and adhere to the outer wall of the elastic layer 11;

[0039] Cleaning position: Under the action of the external driving component, the first cleaning ring 12 and the third cleaning ring 19 are synchronously slid to the cleaning area, and the first cleaning ring 12 and the third cleaning ring 19 are in the closest state. At this time, the elastic layer 11 will be compressed to adapt to the cleaning component, and it can save more cleaning space, so that most of the space of the fermentation tank 1 is used for fermentation.

[0040] It is worth mentioning that the elastic properties of the elastic layer 11 can block the fermentation products from invading the interior of the component, prevent the accumulation of biological fouling, protect various parts, and increase the service life of the device.

[0041] Furthermore, the cleaning assembly includes multiple groups of motion units distributed in an annular array between the third cleaning ring 19 and the first cleaning ring 12, each group of motion units includes a first connecting rod 14 and a second connecting rod 15, wherein one end of the first connecting rod 14 is rotatably mounted on the outer wall of the first cleaning ring 12, and the other end is rotatably connected to the second connecting rod 15, and the end of the second connecting rod 15 away from the first connecting rod 14 is rotatably mounted on the outer wall of the third cleaning ring 19. When the third cleaning ring 19 and the first cleaning ring 12 approach each other, the first connecting rod 14 and the second connecting rod 15 rotate synchronously and apply radial tensile stress to the elastic layer 11 to cause it to deform.

[0042] See Figure 3 、 Figure 4 as well as Figure 8After the elastic layer 11 has been trapped in the fermentation area for a period of time, the external driving component drives the first cleaning ring 12 and the third cleaning ring 19 to move upward. At the same time, in this process, the first cleaning ring 12 and the third cleaning ring 19 are brought closer to each other, so that the first connecting rod 14 and the second connecting rod 15 rotate synchronously, so that the connection point between the two contacts the elastic layer 11, and the elastic layer 11 is gradually stretched outward to deform. The directional deformation of the elastic layer 11 simultaneously drives the lipoprotein attached to its surface to stretch and wrinkle, so that the lipoprotein automatically peels off the surface of the elastic layer 11, forming a closed loop with the low-temperature trapping function of the circulation component - the lipoprotein is directionally enriched on the surface of the elastic layer 11, and the deformation cleaning accurately acts on the enrichment area, avoiding ineffective energy consumption;

[0043] Furthermore, the circulation component includes a plurality of elastic ribs 20 distributed in a circular array, and the two ends of each elastic rib 20 are respectively fixedly connected to the outer walls of the first cleaning ring 12 and the third cleaning ring 19, and a circulation channel is provided inside each elastic rib 20. The first cleaning ring 12 and the third cleaning ring 19 are both provided with a water storage cavity 18. The two ends of each circulation channel are respectively connected to the water storage cavity 18 inside the corresponding cleaning ring, the water storage cavity 18 located inside the third cleaning ring 19 is connected to the water inlet pipe 10, and the water storage cavity 18 located inside the first cleaning ring 12 is connected to the water outlet pipe 9. The water inlet pipe 10 and the water outlet pipe 9 are both connected to the external water circulation system.

[0044] See Figure 3 The external water circulation system will transport water with a lower temperature to the water storage chamber 18 in the third clean ring 19 through the water inlet pipe 10. During the continuous injection process, the water will flow into the water storage chamber 18 of the first clean ring 12 through the circulation channel inside the elastic ribs 20, and then re-input the low-temperature water into the water circulation system through the water outlet pipe 9, allowing the system to adjust the water temperature to the required temperature again. During this process, the low-temperature water continues to absorb heat from the elastic ribs 20, so that the temperature of the surface of the elastic layer 11 is lower than the freezing point of lipoprotein.

[0045] Among them, it is worth mentioning that when the elastic rib 20 slides and retracts with the third cleaning ring 19 and the first cleaning ring 12, its internal channel has no leakage and deformation, adapts to the displacement working condition of trapping and cleaning, and seamlessly cooperates with the first connecting rod 14 and the second connecting rod 15. The elastic deformation ability of the elastic rib 20 ensures that the radial stretching during cleaning is not subject to rigid constraints.

[0046] In addition, it is worth noting that when the third cleaning ring 19 and the first cleaning ring 12 approach each other, the elastic ribs 20 are forced to produce radial contraction deformation, and this deformation will be synchronously transmitted to the elastic layer 11 wrapped around the elastic ribs 20 through the fixed connection point, so that directional wrinkles are generated on the surface of the elastic layer 11, so that the attached lipoproteins are subjected to shear stress, thereby weakening their interfacial bonding force, and the synchronous wrinkles of the elastic layer 11 form a micro-convex structure, which mechanically lifts the bottom of the lipoprotein attachment layer, and can cooperate with the third cleaning ring 19 and the first cleaning ring 12 to further clean the lipoproteins attached to the surface of the elastic layer 11.

[0047] Furthermore, an isolation plate 6 is fixedly connected to the inner wall of the fermentation tank 1, and a through hole is opened in the center of the isolation plate 6. The isolation plate 6 divides the interior of the fermentation tank 1 into an upper cleaning area and a lower fermentation area. A radial flange is provided on the top of the first cleaning ring 12, and an annular shoulder is provided on the bottom of the third cleaning ring 19, and the outer diameters of the flange and the shoulder are both larger than the inner diameter of the through hole of the isolation plate 6.

[0048] See Figure 2 The isolation plate 6 divides the interior of the fermentation tank 1 into two areas. When the elastic layer 11 needs to trap lipoproteins in the fermentation area, the third cleaning ring 19 is driven downward by the external driving component. Under the action of the top flange of the first cleaning ring 12, the first cleaning ring 12 cannot move downward any further. As the third cleaning ring 19 gradually moves downward, the distance between the third cleaning ring 19 and the first cleaning ring 12 gradually increases, thereby resetting the first connecting rod 14 and the second connecting rod 15, and then stretching the elastic layer 11 to its initial state, thereby increasing the trapping area.

[0049] When the surface of the elastic layer 11 needs to be cleaned, the third cleaning ring 19 is driven upward by an external driving component, and when the elastic layer 11 enters the cleaning area, the distance between the third cleaning ring 19 and the first cleaning ring 12 is shortened, thereby driving the first connecting rod 14 and the second connecting rod 15 to rotate, causing the elastic layer 11 to deform, and in this process, the elastic ribs 20 will also deform, causing the elastic layer 11 fixedly connected thereto to wrinkle, thereby increasing the cleaning effect, and under the action of the shoulder at the bottom of the third cleaning ring 19, the third cleaning ring 19 will be prevented from entering the cleaning area, and the shoulder will fit with the bottom of the isolation plate 6 to prevent the cleaned lipoprotein from returning to the fermentation area.

[0050] It is worth mentioning that the top of the isolation plate 6 is set as a slope. The lipoproteins dropped on its surface will slide along the slope to the edge of the isolation plate 6, preventing the lipoproteins from returning to the fermentation area and making the subsequent collection work of the staff more convenient.

[0051] Furthermore, when the third cleaning ring 19 is at the bottom end, the first connecting rod 14 and the second connecting rod 15 are in a parallel and collinear state, forming a geometric self-locking structure. A second incomplete gear 17 is fixedly installed on the hinge axis between the second connecting rod 15 and the outer wall of the first cleaning ring 12. The outer wall of the first cleaning ring 12 is also rotatably installed with a first incomplete gear 16 that can engage with the second incomplete gear 17. An unlocking protrusion 8 that can rotate the second incomplete gear 17 is fixedly installed on the top of the fermentation tank 1.

[0052] See the picture, Figure 2 and Figure 6 When the third cleaning ring 19 slides to the bottom, the first connecting rod 14 and the second connecting rod 15 enter a parallel collinear state, forming a geometric self-locking, and the elastic layer 11 can stably maintain the maximum area and stably be in the fermentation position. The dead point self-locking rigidly fixes the trapping component to completely isolate the displacement deviation caused by the fermentation vibration; when the outer wall of the elastic layer 11 needs to be cleaned, the third cleaning ring 19 is moved upward by the external driving component. When the first cleaning ring 12 is in contact with the top of the fermentation tank 1, the unlocking protrusion 8 will drive the second incomplete gear 17 to rotate, thereby driving the first incomplete gear 16 to rotate, and then driving the first connecting rod 14 to rotate, so as to break the self-locking state and make the first connecting rod 14 and the second connecting rod 15 rotate synchronously, thereby achieving the above-mentioned purpose of wrinkling the elastic layer 11.

[0053] Furthermore, an installation cavity 4 is fixedly connected to the top of the fermentation tank 1, and the installation cavity 4 is communicated with the interior of the fermentation tank 1. A circular temperature control cavity is provided inside one side of the installation cavity 4, and the water inlet pipe 10 is communicated with the temperature control cavity. The inner wall of the temperature control cavity away from the water inlet pipe 10 is connected with a first connecting pipe 24 and a second connecting pipe 25. The first connecting pipe 24 and the second connecting pipe 25 are respectively connected to two independent temperature control circuits in the water circulation system. A rotatable rotating disk 23 is installed on the inner wall of the temperature control cavity, and the rotating disk 23 is provided with a penetrating V-shaped groove 28. The outlet pipe 9 penetrates the outer wall of the installation cavity 4 and is connected to the return end of the external water circulation system.

[0054] See Figure 7 as well as Figure 9As can be seen from the above, the external water circulation system will transport water with a lower temperature through the water inlet pipe 10 to the water storage chamber 18 in the third cleaning ring 19, and then flow into the water storage chamber 18 inside the first cleaning ring 12 through the circulation pipe inside the elastic rib 20, and then be discharged through the water outlet pipe 9. When the elastic layer 11 is located in the fermentation area, it is necessary to maintain a lower temperature to induce lipoproteins. At this time, the V-shaped groove 28 on the rotating disk 23 is connected to the first connecting pipe 24, so that the introduced water flow is a relatively low temperature water flow. When the outer wall of the elastic layer 11 needs to be cleaned, the rotating disk 23 is driven by the external driving component to rotate, so that the V-shaped groove 28 on the rotating disk 23 rotates to connect with the second connecting pipe 25, thereby allowing the higher temperature water to flow into the circulation pipe inside the elastic rib 20, so that the lipoprotein adhering to the surface of the elastic layer 11 can be more easily shed during the deformation process.

[0055] Furthermore, an annular groove is provided on the inner wall of the temperature regulating chamber close to the water inlet pipe 10, and an incomplete gear ring 26 is rotatably installed on the inner wall of the annular groove. The incomplete gear ring 26 is fixedly connected to the rotating disk 23, and a rack 29 is fixedly installed on the top of the first cleaning ring 12, and the rack 29 can engage with the incomplete gear ring 26.

[0056] See Figure 7 、 Figure 9 As shown in the water inlet pipe 10, when the external driving component drives the third cleaning ring 19 to move upward, it drives the rack 29 to engage with the incomplete tooth ring 26, thereby driving the incomplete tooth ring 26 to rotate, and then the V-shaped groove 28 is connected to the second connecting pipe 25, and the first connecting pipe 24 is closed, and the higher temperature water flow is introduced into the elastic ribs 20, so that the lipoprotein adhering to the surface of the elastic layer 11 is converted back into a molten state, and then it is easier to fall off and fall to the top of the isolation plate 6 for subsequent collection.

[0057] Furthermore, a plurality of second cleaning rings 21 are slidably mounted on the outer wall of the guide rod 27, and the outer walls of the second cleaning rings 21 are fixedly connected to the inner wall of the elastic layer 11, and the outer wall of each second cleaning ring 21 is rotatably mounted with a first connecting rod 14 and a second connecting rod 15, and every two corresponding first connecting rods 14 and second connecting rods 15 are rotatably connected, and a second incomplete gear 17 is fixedly mounted on the hinge shaft of each first connecting rod 14 and second connecting rod 15, and elastic ribs 20 distributed in a ring array are fixedly mounted between every two adjacent cleaning rings.

[0058] As can be seen from the above, when cleaning the outer wall of the elastic layer 11, the third cleaning ring 19 is brought close to the first cleaning ring 12, thereby causing the first connecting rod 14 and the second connecting rod 15 to rotate and the elastic ribs 20 to deform, thereby causing wrinkles in the elastic layer 11, thereby peeling off the lipoprotein adhering to its surface. However, this will result in a larger space being required in the cleaning area above, and the elastic layer 11 must be completely placed in the cleaning area before its outer wall can be cleaned. Therefore, in order to increase the effective space of the fermentation area, a new embodiment is proposed based on the above:

[0059] See Figure 6 , several second cleaning rings 21 are connected in series through the guide rod 27 to form a retractable skeleton structure, and the outer wall of each cleaning ring is fixedly connected to the elastic layer 11 to form an integral sliding body. When the external driving component drives the third cleaning ring 19 to move upward and makes the first cleaning ring 12 contact with the top of the fermentation tank 1, thereby rotating the first incomplete gear 16, the first incomplete gear 16 will first drive the second incomplete gear 17 to rotate, thereby unlocking and rotating the first connecting rod 14 and the second connecting rod 15 of the first group. When the second connecting rod 15 of the first group rotates a certain angle, the second incomplete gear 17 fixed on its hinge shaft will engage with the second incomplete gear 17 on the hinge shaft of the first connecting rod 14 of the next group, thereby driving the second group of first connecting rods 14 and the second connecting rod 15 to rotate, thereby gradually fitting the adjacent cleaning rings downward, further increasing the deformation degree of the elastic layer 11 and improving the cleaning efficiency.

[0060] Furthermore, a rotatable screw 7 is installed between the bottom of the fermentation tank 1 and the top of the installation cavity 4. The screw 7 passes through the third cleaning ring 19 and is threadedly connected to the penetration point.

[0061] See Figure 2 The motor fixedly mounted on the top of the mounting cavity 4 drives the screw 7 to rotate, thereby driving the third cleaning ring 19 to move in the vertical direction to achieve the above-mentioned cleaning and trapping purposes.

[0062] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural components recorded in the specification and drawings can also be directly processed according to existing technical common sense without any doubt. At the same time, the connection method of each component adopts the mature conventional means in the existing technology, and the machinery, parts and equipment all adopt conventional models in the existing technology, so no specific description will be given here.

[0063] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A device for producing agricultural microbial fertilizer from livestock manure, comprising a fermentation tank (1), characterized in that: A heating device (2) is fixedly mounted on the outer wall of the fermentation tank (1); the interior of the fermentation tank (1) is divided into a fermentation area at the bottom and a cleaning area at the top; a trapping component that can be slidably adjusted along its central axis is mounted at the center of the interior of the fermentation tank (1); It also includes a circulation component, which can maintain a relatively low temperature of the trapping component, so that the trapping component cooperates with the heating device (2) to form a radial temperature gradient that decreases from the tank wall to the center in the fermentation tank (1); It also includes a cleaning component, which can clean the surface of the trapping component when the trapping component is in the cleaning area.

2. The device for preparing agricultural microbial fertilizer from livestock excrement according to claim 1, characterized in that: The trapping assembly comprises a guide rod (27) fixedly mounted between the top and bottom of the fermentation tank (1); a third cleaning ring (19) and a first cleaning ring (12) capable of vertical sliding adjustment are mounted on the outer wall of the guide rod (27); an elastic layer (11) is fixedly connected between the first cleaning ring (12) and the third cleaning ring (19).

3. The device for preparing agricultural microbial fertilizer from livestock excrement according to claim 2, characterized in that: The cleaning assembly comprises a plurality of groups of motion units distributed in an annular array between the third cleaning ring (19) and the first cleaning ring (12), each group of the motion units comprising a first connecting rod (14) and a second connecting rod (15), wherein one end of the first connecting rod (14) is rotatably mounted on the outer wall of the first cleaning ring (12), and the other end is rotatably connected to the second connecting rod (15), and one end of the second connecting rod (15) away from the first connecting rod (14) is rotatably mounted on the outer wall of the third cleaning ring (19). When the third cleaning ring (19) and the first cleaning ring (12) approach each other, the first connecting rod (14) and the second connecting rod (15) rotate synchronously and apply radial tensile stress to the elastic layer (11) to deform it.

4. The device for preparing agricultural microbial fertilizer from livestock excrement according to claim 3, characterized in that: The circulation component comprises a plurality of elastic ribs (20) distributed in a circular array, the two ends of each elastic rib (20) being fixedly connected to the outer walls of the first cleaning ring (12) and the third cleaning ring (19), a circulation channel being provided inside each elastic rib (20), a water storage cavity (18) being provided inside the first cleaning ring (12) and the third cleaning ring (19), the two ends of each circulation channel being communicated with the water storage cavity (18) inside the corresponding cleaning ring, the water storage cavity (18) inside the third cleaning ring (19) being connected to a water inlet pipe (10), the water storage cavity (18) inside the first cleaning ring (12) being connected to a water outlet pipe (9), and the water inlet pipe (10) and the water outlet pipe (9) being connected to an external water circulation system.

5. The device for preparing agricultural microbial fertilizer from livestock excrement according to claim 4, characterized in that: An isolation plate (6) is fixedly connected to the inner wall of the fermentation tank (1), and a through hole is opened in the center of the isolation plate (6). The isolation plate (6) divides the interior of the fermentation tank (1) into an upper cleaning area and a lower fermentation area. The top of the first cleaning ring (12) is provided with a radial flange, and the bottom of the third cleaning ring (19) is provided with an annular shoulder, and the outer diameters of the flange and the shoulder are both larger than the inner diameter of the through hole of the isolation plate (6).

6. The device for preparing agricultural microbial fertilizer from livestock excrement according to claim 5, characterized in that: When the third cleaning ring (19) is at the bottom, the first connecting rod (14) and the second connecting rod (15) are in a parallel and collinear state, forming a geometric self-locking structure. A second incomplete gear (17) is fixedly mounted on the hinge shaft between the second connecting rod (15) and the outer wall of the first cleaning ring (12). A first incomplete gear (16) capable of meshing with the second incomplete gear (17) is also rotatably mounted on the outer wall of the first cleaning ring (12). An unlocking protrusion (8) capable of rotating the second incomplete gear (17) is fixedly mounted on the top of the fermentation tank (1).

7. The device for preparing agricultural microbial fertilizer from livestock excrement according to claim 6, characterized in that: The top of the fermentation tank (1) is fixedly connected to a mounting cavity (4), the mounting cavity (4) is communicated with the interior of the fermentation tank (1), a circular temperature adjustment cavity is provided inside one side of the mounting cavity (4), the water inlet pipe (10) is communicated with the temperature adjustment cavity, the inner wall of the temperature adjustment cavity away from the water inlet pipe (10) is connected to a first connecting pipe (24) and a second connecting pipe (25), the first connecting pipe (24) and the second connecting pipe (25) are respectively connected to two independent temperature control circuits in the water circulation system, the inner wall of the temperature adjustment cavity is provided with a rotatable rotating disk (23), the rotating disk (23) is provided with a through V-shaped groove (28), and the water outlet pipe (9) passes through the outer wall of the mounting cavity (4) and is connected to the return end of the external water circulation system.

8. The device for preparing agricultural microbial fertilizer from livestock excrement according to claim 7, characterized in that: An annular groove is provided on the inner wall of the temperature regulating chamber on one side close to the water inlet pipe (10), and an incomplete toothed ring (26) is rotatably mounted on the inner wall of the annular groove. The incomplete toothed ring (26) is fixedly connected to the rotating disk (23), and a rack (29) is fixedly mounted on the top of the first cleaning ring (12), and the rack (29) can mesh with the incomplete toothed ring (26).

9. The device for preparing agricultural microbial fertilizer from livestock excrement according to claim 6, characterized in that: A plurality of second cleaning rings (21) are slidably mounted on the outer wall of the guide rod (27), and the outer walls of the second cleaning rings (21) are fixedly connected to the inner wall of the elastic layer (11). A first connecting rod (14) and a second connecting rod (15) are rotatably mounted on the outer wall of each second cleaning ring (21), and every two corresponding first connecting rods (14) and second connecting rods (15) are rotatably connected. A second incomplete gear (17) is fixedly mounted on the hinge shaft of each first connecting rod (14) and second connecting rod (15), and elastic ribs (20) distributed in a ring array are fixedly mounted between every two adjacent cleaning rings.

10. The equipment for preparing agricultural microbial fertilizer from livestock excrement according to claim 8, characterized in that: A rotatable screw (7) is installed between the bottom of the fermentation tank (1) and the top of the installation cavity (4). The screw (7) passes through the third cleaning ring (19) and is threadedly connected to the penetration point.

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