Livestock and poultry manure bacterial fermentation liquor separation and extraction device and separation and extraction method thereof

Abstract

The invention provides a livestock and poultry manure bacterial fermentation liquor separation and extraction device and a separation and extraction method thereof, and relates to the field of fermentation liquor separation. According to the livestock and poultry manure bacterial fermentation liquid separation and extraction device and the separation and extraction method thereof, a shell is included, rotating discs are rotationally installed in the shell, spiral sliding grooves are formed in the rotating discs, a sliding rod is installed between the two rotating discs, a winding wheel is arranged on the outer side of the shell, and filter cloth wound around the outer side of the winding wheel is arranged on the winding wheel; the filter cloth penetrates through the clamping groove of the shell; the invention relates to a livestock and poultry manure bacterial fermentation liquid separation and extraction device and a separation and extraction method thereof, the device adapts to laboratory and small-batch production requirements, effectively solves the problems of low efficiency, long time consumption and insufficient purity of a traditional natural sedimentation method, greatly improves the separation efficiency, drives filter cloth to form an expandable coating structure by virtue of matching of a spiral chute of a turntable and a sliding rod, and improves the separation efficiency. Gravity sedimentation is replaced by extrusion force, and the rolling wheel is matched to reversely tighten the filter cloth, so that the separation time is greatly shortened compared with that of a traditional method.

Description

Technical Field

[0001] This invention relates to the field of fermentation broth separation, specifically to a device and method for separating and extracting fermentation broth from livestock and poultry manure bacteria. Background Technology

[0002] Separation and extraction of bacterial fermentation broth from livestock and poultry manure is a key step in the resource utilization of livestock and poultry manure. It achieves efficient separation of fermentation broth from solid residue through physical and mechanical means, enriching active microorganisms, soluble metabolites, and other effective components in the fermentation broth. It is the most commonly used efficient separation method in industrial production. Centrifugal force accelerates the sedimentation of solid particles, resulting in high separation efficiency, continuous operation, and high liquid purity. It can also separate solid impurities of different particle sizes by adjusting the rotation speed. In laboratory research and small-batch preparation of bacterial fermentation broth from livestock and poultry manure, natural sedimentation method is often used for separation and extraction. This method is simple to operate and low in cost.

[0003] In laboratory research and small-batch preparation of bacterial fermentation broth for livestock and poultry manure, the natural sedimentation method is often used for separation and extraction of the fermentation broth. Although this method is simple to operate and low in cost, the fine solid particles in the fermentation material have strong suspension properties and require a long standing time to achieve initial stratification, resulting in low separation efficiency of bacterial fermentation broth for livestock and poultry manure. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a separation and extraction device and method for livestock and poultry manure bacterial fermentation broth, which solves the problem of low separation efficiency.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: a separation and extraction device and method for bacterial fermentation liquid of livestock and poultry manure, comprising a shell, a turntable rotatably installed inside the shell, a spiral groove inside the turntable, and a slide rod installed between two turntables.

[0006] The outer side of the outer shell is equipped with a winding wheel, on which a filter cloth is wound around its outer side. The filter cloth passes through the slot of the outer shell, and one end of the filter cloth extends into the interior of the outer shell and is fixedly connected to one of the sliding rods. Several sliding rods support the filter cloth and enclose it to form a covering structure, so that the filter cloth unfolds in a surrounding shape. The livestock and poultry manure is located outside the part surrounded by the filter cloth. When the turntable rotates, the chute drives several sliding rods to move linearly, and the surrounding part formed by the filter cloth gradually expands.

[0007] Preferably, the outer shell includes an upper shell, a lower shell, and a feeding hopper. The upper shell and the lower shell are fixed together by fasteners. The feeding hopper is connected to the upper shell. Both the upper shell and the lower shell are connected to a discharge pipe on their outer sides. The discharge pipe is equipped with a valve. The bottom of the upper shell is provided with a discharge port and several slots. A sealed multi-section telescopic plate is installed inside the slot. One end of the sealed multi-section telescopic plate is fixed to the slot, and the other end is fixed to a sliding rod. The bottom of the filter cloth is in contact with the multi-section telescopic plate and the bottom of the upper shell.

[0008] Preferably, two symmetrical brackets are fixedly installed on the upper housing, and the winding wheel is rotatably installed between the two brackets, and the winding wheel is driven to rotate by an external motor.

[0009] Preferably, the filter cloth has a double-layer structure, with the outer layer having a larger pore size than the inner layer.

[0010] Preferably, a gear ring is fixedly installed on one of the turntables, a connecting frame is fixedly installed on the outer shell, a rotating shaft is rotatably installed on the connecting frame, a gear that meshes with the gear ring is fixedly installed at one end of the rotating shaft, and the other end of the rotating shaft is used to connect to an external motor.

[0011] Preferably, the slide bar includes a rod body, two fixed cylinders and two insert rods. The fixed cylinders are fixedly connected to the rod body, and the insert rods are slidably connected to the fixed cylinders. The ends of the two insert rods that are far apart from each other are respectively located in two sliding grooves and are slidably connected to the sliding grooves. A spring is installed between the insert rods and the fixed cylinders.

[0012] Preferably, the fixed cylinder has a groove inside, the insert rod has an installation port inside, an elastic sheet is fixedly connected inside the installation port, and a retaining ball is fixedly installed at one end of the elastic sheet.

[0013] Preferably, a support column is fixedly connected between the two turntables, and several probes are provided on the outer side of the support column.

[0014] Preferably, a magnet A is fixedly connected to one end of each of the plug rods, and several magnets B are fixedly connected to the two turntables on opposite sides.

[0015] A separation and extraction method for a livestock and poultry manure bacterial fermentation broth separation and extraction device further includes the following steps: S1: During the pretreatment of the device, check the sealing of the device to ensure that the filter cloth is in close contact with the outer shell groove, the sealing multi-section telescopic plate and the bottom of the upper shell. The winding wheel adjusts the tension of the filter cloth through the external motor so that the filter cloth is supported by the slide rod to form the initial covering structure. Close the valves on the discharge pipes of the upper and lower shells to prepare for separation. S2: During the feeding operation, the fermented animal manure material to be separated is slowly added into the shell through the feeding hopper connected to the upper shell, so that the material falls accurately onto the outside of the filter cloth covering structure, avoiding the accumulation of material in a local area and affecting the uniformity of filtration. S3: During the encapsulation and filtration process, the external motor connected to the rotating shaft is started. The motor drives the turntable to rotate through the meshing of gears and gear rings. The spiral groove in the turntable drives the slide rod to move linearly, so that the encapsulation structure formed by the filter cloth gradually expands. At the same time, the winding wheel maintains a reverse tension force to keep the filter cloth taut. During the opening of the filter cloth, the livestock and poultry manure material on the outside is uniformly encapsulated and squeezed. Under the action of the squeezing force, the fermentation liquid penetrates the double-layer filter cloth and falls into the lower shell through the discharge port at the bottom of the upper shell. Solid impurities are intercepted on the outside by the filter cloth. S4: When the filter cloth expands to the maximum stroke position, let it stand for one minute to allow the remaining fermentation liquid to be fully filtered. Then, open the upper shell and lower shell discharge pipe valves in sequence to discharge the intercepted solid residue and the separated fermentation liquid, thereby achieving precise solid-liquid separation. S5: During the extraction and purification of fermentation broth, the fermentation broth discharged from the lower shell discharge pipe is introduced into a sterile collection container. For laboratory or small-batch needs, vacuum filtration is used to remove residual trace impurities in the fermentation broth. Then, low-temperature vacuum concentration is performed to enrich active microorganisms and metabolites to obtain a high-purity fermentation broth product. If long-term storage is required, a standard-compliant preservative can be added after concentration, or the broth can be freeze-dried into powder.

[0016] Compared with existing technologies, the present invention has the following advantages: This device is suitable for laboratory and small-batch production needs, effectively solving the problems of low efficiency, long time consumption and insufficient purity of traditional natural sedimentation methods, and greatly improving separation efficiency. Relying on the cooperation of the rotary disc spiral groove and slide rod, the filter cloth is driven to form an expandable covering structure, replacing gravity sedimentation with extrusion pressure. With the reverse tensioning of the winding wheel to keep the filter cloth taut, the separation time is greatly shortened compared with traditional methods. The labor-saving characteristics of the spiral structure reduce energy consumption. The driving force of the toothed ring only needs to be greater than the tension of the winding wheel to operate. The double-layer filter cloth is used to intercept impurities of different particle sizes in a graded manner. The outer layer prevents the inner layer from clogging and the inner layer removes fine particles. With the cooperation of the sealed multi-section telescopic plate, a closed environment is formed to prevent leakage and secondary pollution. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the outer casing of the present invention; Figure 3 This is a top view of the turntable of the present invention; Figure 4 This is a cross-sectional view of the upper housing of the present invention; Figure 5 This is a sectional view of the top view of the upper housing of the present invention; Figure 6 This is a schematic diagram of the structure of several sliding rods and filter cloth of the present invention; Figure 7 This is a schematic diagram of the structure of the slide bar and magnet A of the present invention; Figure 8 This is a cross-sectional view of a partial schematic diagram of the slide bar of the present invention; Figure 9 For the present invention Figure 8 Enlarged schematic diagram of the structure at point A in the middle; Figure 10 This is a schematic diagram of the turntable and support column of the present invention.

[0018] Among them, 1. Outer shell; 101. Upper shell; 102. Lower shell; 103. Feed hopper; 2. Turntable; 3. Slide groove; 4. Slide rod; 401. Rod body; 402. Fixed cylinder; 403. Insert rod; 5. Winding wheel; 6. Filter cloth; 7. Slot; 8. Discharge pipe; 9. Gear ring; 10. Rotating shaft; 11. Gear; 12. Spring; 13. Groove; 14. Mounting port; 15. Elastic sheet; 16. Clamping ball; 17. Support column; 18. Probe; 19. Magnet A; 20. Magnet B. Detailed Implementation

[0019] like Figures 1-10 As shown, a separation and extraction device and method for livestock and poultry manure bacterial fermentation liquid include a shell 1, a turntable 2 is rotatably installed inside the shell 1, a spiral groove 3 is provided inside the turntable 2, and a slide rod 4 is installed between the two turntables 2.

[0020] The outer side of the outer shell 1 is provided with a winding wheel 5, and a filter cloth 6 is wound around the outer side of the winding wheel 5. The filter cloth 6 passes through the slot 7 of the outer shell 1 and is in close contact with the slot 7. One end of the filter cloth 6 extends into the interior of the outer shell 1 and is fixedly connected to one of the slide rods 4 and overlaps on the remaining slide rods 4. The slide rods 4 support the filter cloth 6 and enclose the filter cloth 6 to form a covering structure, so that the filter cloth 6 is unfolded in a surrounding shape. The livestock and poultry manure is located outside the surrounding part of the filter cloth 6. When the turntable 2 rotates, the slide groove 3 drives the slide rods 4 to move linearly and gradually expands the surrounding part formed by the filter cloth 6.The outer casing 1 includes an upper casing 101, a lower casing 102, and a feed hopper 103. The upper casing 101 and the lower casing 102 are fixed together by fasteners. The feed hopper 103 is connected to the upper casing 101. Both the upper casing 101 and the lower casing 102 have discharge pipes 8 connected to their outer sides. Valves are installed on the discharge pipes 8. The bottom of the upper casing 101 has a discharge port and several slots. Sealed multi-section telescopic plates are installed inside the slots. One end of the sealed multi-section telescopic plate is fixed to the slot, and the other end is fixed to a sliding rod 4. The bottom of the filter cloth 6 is in close contact with the multi-section telescopic plate and the bottom of the upper casing 101. A fixed device is installed on the upper casing 101. The device is equipped with two symmetrical supports, with a winding wheel 5 rotatably mounted between the two supports. The winding wheel 5 is driven to rotate by an external motor. The filter cloth 6 has a double-layer structure, with the outer layer of filter cloth 6 having a larger filtration pore size than the inner layer. A gear ring 9 is fixedly mounted on one of the turntables 2, and a connecting frame is fixedly mounted on the outer shell 1. A rotating shaft 10 is rotatably mounted on the connecting frame. A gear 11 that meshes with the gear ring 9 is fixedly mounted on one end of the rotating shaft 10, and the other end of the rotating shaft 10 is used to connect to an external motor. The slide rod 4 includes a rod body 401, two fixed cylinders 402, and two insert rods 403. The fixed cylinders 402 are fixedly connected to the rod body 401. The insertion rod 403 is slidably connected to the fixed cylinder 402. The ends of the two insertion rods 403 that are far apart from each other are located in the two sliding grooves 3 and are slidably connected to the sliding grooves 3. A spring 12 is installed between the insertion rod 403 and the fixed cylinder 402. The fixed cylinder 402 has a groove 13 inside, and the insertion rod 403 has an installation port 14 inside. An elastic piece 15 is fixedly connected in the installation port 14. A retaining ball 16 is fixedly installed at one end of the elastic piece 15. When the retaining ball 16 moves into the groove 13, the insertion rod 403 stops moving. A support column 17 is fixedly connected between the two turntables 2. Several probes 18 are provided on the outside of the support column 17. When the fixed cylinder 402 moves closer to the support column 17 along the sliding rod 4, several probes 18 are inserted into several grooves 13 respectively. Under the action of the spring 12, the retaining ball 16 is disengaged from the groove 13. The spring 12 pushes several insert rods 403 to reset. One end of each insert rod 403 is fixedly connected to a magnet A19. Several magnets B20 are fixedly connected to the two rotating disks 2 on opposite sides. When the sliding rods 4 move to the maximum stroke position, the magnets A19 move to positions corresponding to the magnets B20 respectively. The like poles of magnets A19 and B20 repel each other.

[0021] Through the cooperation of turntable 2, spiral chute 3, and slide rod 4, the filter cloth 6 is driven to form an expandable covering structure. Since the livestock and poultry manure is located on the outside of the filter cloth 6, as the filter cloth 6 gradually opens with the movement of slide rod 4, it can squeeze and filter the fermentation material, which greatly improves the separation efficiency and shortens the separation time compared with the natural sedimentation method. The filter cloth 6 is expanded by multiple slide rods 4, which can effectively intercept fine solid particles and improve the separation purity of the fermentation liquid. The covering structure can make full use of the filtration area of ​​the filter cloth 6, which is suitable for the material processing needs of laboratory and small-batch production. It is easy to operate and the separation effect is stable. First, livestock and poultry manure raw material is added to the feed bin 103. When the livestock and poultry manure raw material falls into the outer shell 1, it is located on the outside of the surrounding structure of the filter cloth 6. When the filter cloth 6 expands with the slide rod 4, it begins to squeeze the livestock and poultry manure raw material. The fermentation broth is squeezed by the filter cloth 6 and filtered into the inner side of the structure surrounded by the filter cloth 6. Then it falls from the discharge port of the upper shell 101 into the lower shell 102 and can finally be discharged through the discharge pipe 8. It should be noted that when the filter cloth 6 expands to the maximum position with the slide rod 4, the magnets A19 and B20 on the slide rod 4 repel each other and overcome the elastic force of the spring 12, causing the insertion rod 403 to slide along the fixed cylinder 402. At this time, the locking ball 16 is locked into the groove 13, and the insertion rod 403 is disengaged from the slide groove 3 of the turntable 2. During this expansion process, the winding wheel 5 provides a tension force to keep it in the opposite direction, so that the filter cloth 6 can be tightened. The force required by the toothed ring 9 should be greater than the force of the winding wheel 5. Moreover, by using the spiral groove 13, the slide rod 4 can be moved more easily when rotating, which saves energy.

[0022] A separation and extraction method for a livestock and poultry manure bacterial fermentation broth separation and extraction device further includes the following steps: S1: During the pretreatment of the device, check the sealing of the device to ensure that the filter cloth 6 is in close contact with the slot 7 of the outer shell 1, the sealing multi-section telescopic plate and the bottom of the upper shell 101. The winding wheel 5 adjusts the tension of the filter cloth 6 through the external motor so that the filter cloth 6 is supported and enclosed by the slide rod 4 to form the initial covering structure. Close the valves on the discharge pipe 8 of the upper shell 101 and the lower shell 102 to prepare for separation. S2: During the feeding operation, the animal and poultry manure bacterial fermentation material to be separated is slowly added into the inside of the outer shell 1 through the feeding hopper 103 connected to the upper shell 101, so that the material falls accurately onto the outside of the filter cloth 6 covering structure, avoiding the accumulation of material in a local area and affecting the uniformity of filtration. S3: During the encapsulation and filtration process, the external motor connected to the rotating shaft 10 is started. The motor drives the turntable 2 to rotate through the meshing of the gear 11 and the gear ring 9. The spiral groove 3 in the turntable 2 drives the slide rod 4 to move linearly, so that the encapsulation structure formed by the filter cloth 6 gradually expands. At the same time, the winding wheel 5 maintains the reverse tension force to keep the filter cloth 6 taut. During the opening of the filter cloth 6, it forms a uniform encapsulation and compression of the livestock and poultry manure material on the outside. Under the action of the compression force, the fermentation liquid penetrates the double-layer filter cloth 6 and falls into the lower shell 102 through the discharge port at the bottom of the upper shell 101. Solid impurities are intercepted on the outside by the filter cloth 6. S4: When the filter cloth 6 expands to the maximum stroke position, let it stand for one minute to allow the remaining fermentation liquid to be fully filtered. Then, open the valves of the upper shell 101 and lower shell 102 discharge pipe 8 in sequence to discharge the intercepted solid residue and the separated fermentation liquid, so as to achieve precise solid-liquid separation. S5: During the extraction and purification of the fermentation broth, the fermentation broth discharged from the discharge pipe 8 of the lower shell 102 is introduced into a sterile collection container. For laboratory or small-batch needs, vacuum filtration is used to remove residual trace impurities in the fermentation broth. Then, the broth is concentrated at low temperature to enrich active microorganisms and metabolites, resulting in a high-purity fermentation broth product. If long-term storage is required, a standard preservative can be added after concentration, or the broth can be freeze-dried into powder.

[0023] During use, the fermented livestock and poultry manure material to be separated is slowly added into the outer shell 1 through the feeding hopper 103, allowing the material to fall precisely onto the outer side of the filter cloth 6 covering structure. The external motor connected to the rotating shaft 10 is started, and the motor drives the turntable 2 to rotate through the meshing of the gear 11 and gear ring 9. The spiral groove 3 inside the turntable 2 drives the sliding rod 4 to move synchronously in a straight line, gradually expanding the covering structure formed by the filter cloth 6. Simultaneously, the winding wheel 5 maintains a reverse tension, keeping the filter cloth 6 taut. During the opening process of the filter cloth 6, it forms a uniform wrapping and squeezing action on the outer livestock and poultry manure material, using squeezing force to replace the gravity effect of natural sedimentation, significantly shortening the separation time and solving the problems of low efficiency and long time consumption in traditional natural sedimentation methods. Under the action of squeezing force, the fermentation liquid penetrates the double-layer filter cloth 6, and the outer filter cloth 6 first... The filter cloth 6 intercepts large-particle solid impurities (such as incompletely fermented manure clumps and straw fragments) in the material, preventing rapid clogging of the inner filter cloth 6, extending its service life, and reducing replacement costs. The inner filter cloth 6 further intercepts trace amounts of fine solid particles and microbial aggregates, effectively improving the purity of the fermentation liquid and solving the problem of residual fine impurities in traditional methods. The filtered fermentation liquid falls into the lower shell 102 through the discharge port at the bottom of the upper shell 101 for temporary storage, while solid impurities are firmly intercepted on the outside of the filter cloth 6, achieving preliminary solid-liquid separation. In this stage, the labor-saving characteristics of the spiral chute 3 allow the toothed ring 9 to move smoothly by requiring a driving force greater than the tension force of the winding wheel 5, significantly saving energy. The sealed multi-section telescopic plate extends and retracts synchronously with the slide rod 4, always maintaining a sealed state and further ensuring the airtightness of the filtration environment.

[0024] When the filter cloth 6 expands to its maximum stroke position, the magnet A19 on the slide rod 4 and the magnet B20 on the turntable 2 move to their corresponding positions, generating an auxiliary limiting force by repulsion of like poles. At the same time, the insertion rod 403 overcomes the elastic force of the spring 12 and slides along the fixed cylinder 402, causing the retaining ball 16 to be engaged in the groove 13 of the fixed cylinder 402. This achieves the separation of the insertion rod 403 from the slide groove 3 and the precise positioning of the slide rod 4, preventing the filter cloth 6 from being overstretched and damaged. It also ensures that the expansion range of each batch of filter cloth 6 is consistent, improving the batch stability of the separation effect. After that, it is left to stand for 1 minute to allow the residual fermentation liquid on the filter cloth 6 to drip fully into the lower shell 102, reducing material loss. Then, the valves of the discharge pipes 8 of the upper shell 101 and the lower shell 102 are opened in sequence to discharge the solid residue intercepted on the outside of the filter cloth 6 and the fermentation liquid collected in the lower shell 102, respectively, achieving precise solid-liquid separation. In this step, the short standing time can improve the fermentation liquid recovery rate, and the independent control of the dual discharge pipes 8 can avoid secondary mixing of solid and liquid, making the operation convenient.

[0025] The fermentation broth discharged from the lower shell 102 discharge pipe 8 is introduced into a sterile collection container. For high-purity requirements in laboratory or small-batch production, vacuum filtration is used to remove residual trace impurities from the fermentation broth, further improving the purity of the finished product. Then, low-temperature vacuum concentration is performed to enrich the active microorganisms (such as lactic acid bacteria and Bacillus) and metabolites (organic acids, enzymes, amino acids, etc.) in the fermentation broth, while avoiding the inactivation of active microorganisms and the decomposition of metabolites, thereby increasing the concentration and application value of the finished product. For long-term storage, preservatives meeting agricultural or feed standards can be added after concentration, or the broth can be freeze-dried into powder to reduce storage and transportation costs and expand the application scenarios of the fermentation broth.

[0026] After solid-liquid separation and fermentation broth extraction are completed, as slide bar 4 moves to its maximum stroke position, magnet A19 moves to the position of magnet B20. Utilizing the principle of like poles repulsion, magnet A19 moves towards magnet B20. Magnet B20 drives insert rod 403 to collect into fixed cylinder 402. Spring 12 begins to compress, and insert rod 403 drives ball 16 to engage in groove 13. Elastic sheet 15 prevents ball 16 from dislodging from groove 13. With the force applied by winding wheel 5, filter cloth 6 is tightened, driving several slide bars 4 to automatically tighten, ultimately achieving rapid reset, rather than relying on the reverse rotation of drive turntable 2 for reset. The purpose is to achieve a faster reset process. The process is faster, and then the slide bar 4 moves towards the support column 17. When the fixed cylinder 402 approaches the support column 17, the probes 18 on the outside of the support column 17 are inserted into the grooves 13 of the fixed cylinder 402, causing the locking ball 16 to disengage from the grooves 13. The spring 12 releases its elastic force to push the insertion rod 403 back to reset, so that the insertion rod 403 is re-embedded into the slide groove 3 of the turntable 2. At the same time, the winding wheel 5 is controlled to rotate in the opposite direction to recycle the filter cloth 6, so that the filter cloth 6 and the slide bar 4 return to the initial covering state. This reset process can be automatically reset without manual adjustment, which is convenient to operate, shortens the operation interval, improves the turnover efficiency of the device, and meets the needs of small-batch continuous operation in the laboratory.

[0027] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for separating and extracting bacterial fermentation broth from livestock and poultry manure, characterized in that: Includes a housing (1), inside which a turntable (2) is rotatably mounted, and inside the turntable (2) is a spiral groove (3), and a slide rod (4) is installed between the two turntables (2). The outer side of the outer shell (1) is provided with a winding wheel (5), and a filter cloth (6) is wound around the outer side of the winding wheel (5). The filter cloth (6) passes through the slot (7) of the outer shell (1). One end of the filter cloth (6) extends into the interior of the outer shell (1) and is fixedly connected to one of the slide rods (4). Several slide rods (4) support the filter cloth (6) and make the filter cloth (6) enclose to form a covering structure, so that the filter cloth (6) unfolds in a surrounding shape. The livestock and poultry manure is located outside the part enclosed by the filter cloth (6). When the turntable (2) rotates, the chute (3) drives several slide rods (4) to move in a straight line, and the enclosed part formed by the filter cloth (6) gradually expands.

2. The livestock and poultry manure bacterial fermentation broth separation and extraction device according to claim 1, characterized in that: The outer shell (1) includes an upper shell (101), a lower shell (102) and a feed hopper (103). The upper shell (101) and the lower shell (102) are fixed together by fasteners. The feed hopper (103) is connected to the upper shell (101). The outer sides of the upper shell (101) and the lower shell (102) are connected to a discharge pipe (8). The discharge pipe (8) is equipped with a valve. The bottom of the upper shell (101) is provided with a discharge port and several slots. A sealed multi-section telescopic plate is installed inside the slot. One end of the sealed multi-section telescopic plate is fixed to the slot, and the other end is fixed to the slide rod (4). The bottom of the filter cloth (6) is in contact with the multi-section telescopic plate and the bottom of the upper shell (101).

3. The livestock and poultry manure bacterial fermentation broth separation and extraction device according to claim 2, characterized in that: Two symmetrical brackets are fixedly installed on the upper housing (101), and the winding wheel (5) is rotatably installed between the two brackets. The winding wheel (5) is driven to rotate by an external motor.

4. The livestock and poultry manure bacterial fermentation broth separation and extraction device according to claim 1, characterized in that: The filter cloth (6) has a double-layer structure, with the outer filter cloth (6) having a larger pore size than the inner layer.

5. The livestock and poultry manure bacterial fermentation broth separation and extraction device according to claim 1, characterized in that: One of the turntables (2) is fixedly mounted with a gear ring (9), and a connecting frame is fixedly mounted on the outer shell (1). A rotating shaft (10) is rotatably mounted on the connecting frame. A gear (11) that meshes with the gear ring (9) is fixedly mounted on one end of the rotating shaft (10), and the other end of the rotating shaft (10) is used to connect to an external motor.

6. The livestock and poultry manure bacterial fermentation broth separation and extraction device according to claim 1, characterized in that: The slide bar (4) includes a rod body (401), two fixed cylinders (402) and two insert rods (403). The fixed cylinders (402) are fixedly connected to the rod body (401), and the insert rods (403) are slidably connected to the fixed cylinders (402). The ends of the two insert rods (403) that are far apart from each other are located in the two sliding grooves (3) and are slidably connected to the sliding grooves (3). A spring (12) is installed between the insert rods (403) and the fixed cylinders (402).

7. The livestock and poultry manure bacterial fermentation broth separation and extraction device according to claim 6, characterized in that: The fixed cylinder (402) has a groove (13) inside, and the insert rod (403) has an installation port (14) inside. An elastic piece (15) is fixedly connected inside the installation port (14), and a ball (16) is fixedly installed at one end of the elastic piece (15).

8. The livestock and poultry manure bacterial fermentation broth separation and extraction device according to claim 7, characterized in that: A support column (17) is fixedly connected between the two turntables (2), and several probes (18) are provided on the outside of the support column (17).

9. The livestock and poultry manure bacterial fermentation broth separation and extraction device according to claim 8, characterized in that: One end of each of the aforementioned inserts (403) is fixedly connected to a magnet A (19), and several magnets B (20) are fixedly connected to the two turntables (2) on opposite sides.

10. A separation and extraction method for a livestock and poultry manure bacterial fermentation broth separation and extraction device, comprising the livestock and poultry manure bacterial fermentation broth separation and extraction device as described in any one of claims 1-9, characterized in that: It also includes the following steps: S1: During the pretreatment of the device, check the sealing of the device to ensure that the filter cloth (6) is in close contact with the slot (7) of the outer shell (1), the sealing multi-section telescopic plate and the bottom of the upper shell (101). The winding wheel (5) adjusts the tension of the filter cloth (6) through the external motor so that the filter cloth (6) is supported and enclosed by the slide rod (4) to form the initial covering structure. Close the valves on the discharge pipe (8) of the upper shell (101) and the lower shell (102) to prepare for separation. S2: During the feeding operation, the animal and poultry manure bacterial fermentation material to be separated is slowly added into the shell (1) through the feeding bin (103) connected to the upper shell (101), so that the material falls accurately into the outer side of the filter cloth (6) covering structure, avoiding the accumulation of material in a local area and affecting the uniformity of filtration. S3: During the encapsulation and filtration process, the external motor connected to the rotating shaft (10) is started. The motor drives the turntable (2) to rotate through the meshing of the gear (11) and the gear ring (9). The spiral groove (3) in the turntable (2) drives the slide rod (4) to move linearly, so that the encapsulation structure formed by the filter cloth (6) gradually expands. At the same time, the winding wheel (5) maintains the reverse tension to tighten the filter cloth (6). During the opening process of the filter cloth (6), it forms a uniform encapsulation and compression on the outer livestock and poultry manure material. Under the action of the compression force, the fermentation liquid penetrates the double-layer filter cloth (6) and falls into the lower shell (102) through the discharge port at the bottom of the upper shell (101). Solid impurities are intercepted on the outside by the filter cloth (6). S4: When the filter cloth (6) expands to the maximum stroke position, let it stand for one minute to allow the remaining fermentation liquid to be fully filtered. Then, open the valves of the upper shell (101) and lower shell (102) discharge pipe (8) in sequence to discharge the intercepted solid residue and the separated fermentation liquid respectively, so as to achieve precise solid-liquid separation. S5: When extracting and purifying the fermentation broth, the fermentation broth discharged from the lower shell (102) discharge pipe (8) is introduced into a sterile collection container. For laboratory or small batch needs, vacuum filtration is used to remove residual trace impurities in the fermentation broth. Then, the broth is concentrated at low temperature to enrich active microorganisms and metabolites, and a high-purity fermentation broth product is obtained. For long-term storage, preservatives that meet the standards can be added after concentration, or the product can be freeze-dried into powder.

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