Livestock breeding waste recycling and reprocessing device

Through the combination of the spiral mixing rod and the adjustment mechanism, the problems of insufficient stirring and rate adjustment during the fermentation of animal husbandry waste are solved, uniform fermentation of waste and energy saving are achieved, and product quality is improved.

CN120484929AInactive Publication Date: 2025-08-15海阳市小纪镇畜牧兽医站
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Patent Information

Application Number
CN202510627454.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-15
Publication Date
2025-08-15
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing livestock farming waste recycling and reprocessing equipment has problems such as insufficient stirring and inadequate stirring rate during the fermentation process, resulting in uneven fermentation and waste of energy.

Method used

The spiral mixing rod design and adjustment mechanism is adopted to drive the spiral mixing rod to move along the spiral trajectory through a servo motor, and the amount of carbon dioxide gas is used to adjust the stirring rate, and the stirring rate and carbon source addition amount are adjusted in real time in combination with the carbon source supplement component.

Benefits of technology

The waste is fully stirred, which avoids uneven fermentation, saves energy, improves product quality, and optimizes the metabolic process of microorganisms.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention belongs to the technical field of breeding waste fermentation, and particularly relates to a livestock breeding waste recycling and reprocessing device which comprises a fermentation tank, a spiral stirring rod is arranged in the fermentation tank, a feeding port is formed in the outer wall of the fermentation tank, and a discharging port is formed in the lower end of the fermentation tank; the stirring and mixing mechanism is used for driving a spiral stirring rod to fully stir waste gas in the fermentation tank, the stirring and mixing mechanism comprises a rotating rod rotationally connected to the inner top wall of the fermentation tank, and a servo motor used for driving the rotating rod is fixedly connected to the upper end of the fermentation tank. By arranging the stirring and mixing mechanism, during fermentation treatment, a sliding block can drive a spiral stirring rod to do reciprocating horizontal displacement in the rotating process of a guide rail, the position of the spiral stirring rod is continuously changed along a spiral track during stirring, the coverage area of the spiral stirring rod during stirring is increased, and the stirring effect is improved. The waste is stirred more sufficiently, and the non-uniformity of the fermentation process is avoided.
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Description

Technical Field

[0001] The invention belongs to the technical field of fermentation of breeding waste, and in particular relates to a device for recycling and reprocessing livestock breeding waste. Background Art

[0002] Livestock farming refers to the agricultural production activities of raising and breeding livestock (such as cattle, sheep, pigs, and chickens) to obtain animal products (such as meat, dairy products, and eggs). This involves animal husbandry, management, disease prevention, and reproduction, and is a vital component of agricultural production. The livestock farming process typically produces waste such as animal manure, sewage, feed residues, and scraps. If these wastes are not effectively treated, they can pollute the environment, affect soil and water quality, and potentially spread disease. Therefore, they require recycling and treatment.

[0003] In the prior art, waste generated by livestock farming is usually fermented to transform it into useful products through the action of microorganisms, thereby facilitating resource recycling and effectively reducing the hazards of waste and its pollution to the environment. However, existing recycling and reprocessing devices often have the following technical problems when fermenting waste: During fermentation, there are inevitably dead corners that cannot be covered by the stirring rod, resulting in insufficient stirring of the waste, causing some parts of the organic matter to not be sufficiently decomposed by microorganisms, resulting in an uneven fermentation process; During the fermentation process, the stirring rate cannot be adjusted in real time as the fermentation progresses: In the early stage of fermentation, the metabolic level and activity of microorganisms are high. If the stirring rate is too low at this time, it will lead to insufficient oxygen supply, forming an oxygen-limited area, inhibiting the growth of microorganisms or causing changes in metabolic pathways, affecting product synthesis; As the fermentation progresses, especially when it enters the stable phase (i.e., when the growth of the microorganisms gradually reaches a stable stage, or the production rate of the target metabolites gradually stabilizes), the oxygen and nutrient requirements of the microorganisms gradually slow down, the metabolic level and activity of the microorganisms are low, and the oxygen consumption rate slows down. If the stirring rate is too high at this time, it will lead to excessive oxygen supply, wasting energy and affecting the subsequent metabolic pathways. Therefore, there is an urgent need for a livestock breeding waste recycling and reprocessing device that can fully stir the waste and adjust the stirring rate in real time as the fermentation proceeds. Summary of the Invention

[0004] The purpose of the present invention is to address the problems raised in the above background technology and provide a livestock breeding waste recycling and reprocessing device that can continuously change the position of the spiral stirring rod along a spiral trajectory during stirring, thereby increasing the coverage area of the spiral stirring rod during stirring.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A livestock breeding waste recycling and reprocessing device, comprising: A fermentation tank, wherein a spiral stirring rod is provided inside the fermentation tank, a feed inlet is provided on the outer wall of the fermentation tank, and a discharge port is provided at the lower end of the fermentation tank; The top end of the driving member is fixedly provided with a gear train coupled to the driving member, and the driving member is mounted on a link cam of the driving member, and the linking member is connected with a gear train coupled to the driving member by a toothed connecting strip which is cooperatively connected with the gear train. The regulating mechanism is used to adjust the stirring rate of the spiral stirring rod as the fermentation progresses.

[0006] Preferably, a limiting rod is fixedly connected between the inner walls on both sides of the guide rail, and the sliding block is penetrated by the limiting rod and is slidably connected to the limiting rod.

[0007] Preferably, the adjustment mechanism includes a control channel fixedly connected to the side wall of the fermentation tank and connected to the interior of the fermentation tank, the control channel is fixedly connected to a control box at one end away from the fermentation tank, two triangular blocks are sealed and slidably connected inside the control box, a first spring is provided between each triangular block and the inner wall of the control box, an adjustment plate is provided between the two triangular blocks, a second spring is provided between the adjustment plate and the inner wall of the control box, the upper and lower walls of the adjustment plate are hinged with guide wheels through a hinge seat, the two guide wheels respectively contact and roll with the two triangular blocks, a sliding rheostat controlled by the adjustment plate is provided on the outer wall of the control box on the side away from the control channel, and the servo motor is electrically connected to the power supply device through the sliding rheostat.

[0008] Preferably, the sliding rheostat includes a U-shaped fixed block fixedly connected to the outer wall of the control box, a resistance rod is fixedly connected between the inner walls on both sides of the U-shaped fixed block, a slide is slidably mounted on the resistance rod, and a push rod is fixedly connected between the adjustment plate and the slide.

[0009] Preferably, an exhaust port is fixedly connected to the upper end of the control channel, an on-off valve is provided in the exhaust port, and a valve plate is provided on one side of the control channel close to the control box.

[0010] Preferably, a supplement component is also provided in the regulating mechanism for supplementing the carbon source during the fermentation process, and the amount of carbon source supplementation changes as the fermentation progresses. The regulating mechanism includes a suction frame fixedly connected to the upper and lower outer walls of the control box, each of the suction frames is sealed and slidably connected with a piston, each of the pistons is fixedly connected to the corresponding triangular block with a connecting rod, each of the suction frames is fixedly connected to a drainage pipe, and the two drainage pipes extend from both sides to the inside of the fermentation tank respectively, and a storage box is fixedly connected to the outer wall of the fermentation tank, and each of the suction frames is fixedly connected to the storage box with a suction pipe.

[0011] Preferably, each of the liquid suction pipe and the liquid discharge pipe is provided with a one-way valve.

[0012] Preferably, the height of the waste in the fermentation tank is lower than the height of the drain pipe.

[0013] Compared with existing technologies, the advantages of this livestock breeding waste recycling and reprocessing device are: 1. The present invention sets a stirring and mixing mechanism. During the fermentation process, the servo motor is turned on to drive the rotating rod to rotate, causing the guide rail to rotate. During this process, the bevel gear will perform circular motion along the bevel gear ring, thereby driving the reciprocating screw to rotate, so that during the rotation of the guide rail, the slider can drive the spiral stirring rod to perform reciprocating horizontal displacement. The spiral stirring rod continuously changes position along the spiral trajectory during stirring, thereby increasing the coverage area of the spiral stirring rod during stirring, stirring the waste more fully, and avoiding uneven fermentation process.

[0014] 2. The present invention sets a regulating mechanism. During the fermentation process, the valve plate is opened regularly, so that the carbon dioxide gas generated by the fermentation between units is discharged into the control box. The stirring rate is adjusted by the change of the gas amount. In the initial fermentation, the stirring rate of the spiral stirring rod for the waste is higher to avoid insufficient oxygen supply in the initial stage of fermentation. As the fermentation tends to stabilize, the stirring rate of the spiral stirring rod for the waste is reduced to avoid excessive oxygen supply and unnecessary disturbance, thereby saving energy and improving product quality.

[0015] 3. The present invention sets a supplement component. During the fermentation process, each time the stirring rate is adjusted, the movement of the two triangular blocks will drive the piston to move, thereby pumping the carbon source in the storage box into the fermentation tank, thereby adding the carbon source, thereby providing the energy required by the microorganisms and promoting their growth and metabolism. At the same time, the amount of carbon source added gradually decreases as the fermentation proceeds. In the early stage of fermentation, more carbon source is pumped into the fermentation tank to avoid too little carbon source being supplemented, which restricts the growth and metabolism of the microorganisms. When the subsequent fermentation tends to be stable, less carbon source is pumped into the fermentation tank to avoid too much carbon source being supplemented, which leads to excessive growth of the microorganisms and the production of excessive by-products. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic cross-sectional view of the present invention; Figure 3 yes Figure 2 Enlarged view of point A in the middle; Figure 4 It is a cross-sectional view of the control box in the present invention; Figure 5 yes Figure 4 Enlarged view of point B in the middle.

[0017] Figure: 1, fermentation tank; 11, spiral stirring rod; 12, feed port; 13, discharge port; 2, stirring and mixing mechanism; 21, rotating rod; 22, servo motor; 23, guide rail; 24, slider; 25, reciprocating screw; 26, bevel gear; 27, bevel gear ring; 28, rotating seat; 29, transmission rod; 210, rack; 211, transmission gear; 3, adjustment mechanism; 31, control channel; 32, control box; 3 3. Triangular block; 34. First spring; 35. Adjustment plate; 36. Second spring; 37. Guide wheel; 38. Sliding rheostat; 381. U-shaped fixing block; 382. Resistance rod; 383. Slide; 384. Push rod; 39. Supplementary assembly; 391. Suction frame; 392. Piston; 393. Connecting rod; 394. Drain pipe; 395. Storage box; 396. Suction pipe; 4. Limit rod; 5. Exhaust port. DETAILED DESCRIPTION

[0018] The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0019] Example: Refer to Figures 1 to 5 , a livestock breeding waste recycling and reprocessing device, comprising: A fermentation tank 1 is provided with a spiral stirring rod 11 inside the fermentation tank 1, a feed inlet 12 is provided on the outer wall of the fermentation tank 1, and a discharge port 13 is provided at the lower end of the fermentation tank 1; Specifically, a discharge valve is provided in the discharge port 13 for taking the product out of the fermentation tank 1 after fermentation is completed.

[0020] The stirring and mixing mechanism 2 is used to drive the spiral stirring rod 11 to fully stir the waste gas in the fermentation tank 1. The stirring and mixing mechanism 2 includes a rotating rod 21 rotatably connected to the top wall of the fermentation tank 1. The upper end of the fermentation tank 1 is fixedly connected to a servo motor 22 for driving the rotating rod 21. The bottom end of the rotating rod 21 is fixedly connected to a guide rail 23. A slider 24 is slidably connected to the guide rail 23. A reciprocating screw rod 25 is rotatably connected between the inner walls of the two sides of the guide rail 23. One end of the reciprocating screw rod 25 extends to the guide rail 2 3 and is fixedly connected to the outside of the guide rail 23. A bevel gear 26 is fixedly connected to the inner top wall of the fermentation tank 1. A bevel gear ring 27 meshing with the bevel gear 26 is fixedly connected. The slider 24 is threadedly connected to the reciprocating screw 25. The lower end of the slider 24 is fixedly connected to the rotating seat 28. The lower end of the rotating seat 28 is rotatably connected to the transmission rod 29. The bottom end of the transmission rod 29 is fixedly connected to the spiral stirring rod 11. The lower end of the guide rail 23 is fixedly connected to the rack 210. The transmission rod 29 is fixedly connected to the transmission gear 211 meshing with the rack 210. Specifically, a limiting rod 4 is fixedly connected between the inner walls on both sides of the guide rail 23, and the slider 24 is penetrated by the limiting rod 4 and is slidably connected to the limiting rod 4. The limiting rod 4 can limit the slider 24, so that the slider 24 can only slide in the horizontal direction when the reciprocating screw 25 rotates, preventing it from rotating with the reciprocating screw 25.

[0021] In view of the problem that the existing technology inevitably has dead corners that the stirring rod cannot cover, resulting in insufficient stirring of the waste, causing some parts of the organic matter to not be sufficiently decomposed by microorganisms, and thus causing the fermentation process to be uneven, the present invention sets a stirring and mixing mechanism 2. During the fermentation process, the servo motor 22 is turned on to drive the rotating rod 21 to rotate, so that the guide rail 23 rotates. During this process, the bevel gear 26 will perform a circular motion along the bevel gear ring 27, thereby driving the reciprocating screw rod 25 to rotate, so that the slider 24 can drive the spiral stirring rod 11 to perform a reciprocating horizontal displacement during the rotation of the guide rail 23, so that the spiral stirring rod 11 During stirring, the position of the spiral stirring rod 11 continuously changes along the spiral trajectory, which increases the coverage area of the spiral stirring rod 11 during stirring, stirs the waste more fully, and avoids uneven fermentation process. During the reciprocating horizontal displacement of the slider 24, the transmission gear 211 on the transmission rod 29 will reciprocate horizontally along the rack 210, so that the spiral stirring rod 11 continuously rotates in opposite directions, further improving the stirring effect of the waste, and avoiding the problem that the direction of the waste is always consistent during stirring, resulting in reduced fermentation effect under the action of centrifugal force. This can be achieved by setting up only one driving source, thereby achieving the purpose of reducing costs and increasing efficiency.

[0022] The regulating mechanism 3 is used to adjust the stirring rate of the spiral stirring rod 11 as the fermentation proceeds.

[0023] The regulating mechanism 3 includes a control channel 31 fixedly connected to the side wall of the fermentation tank 1 and connected to the interior of the fermentation tank 1. The end of the control channel 31 away from the fermentation tank 1 is fixedly connected to the control box 32. Two triangular blocks 33 are sealed and slidably connected inside the control box 32. A first spring 34 is provided between each triangular block 33 and the inner wall of the control box 32. An regulating plate 35 is provided between the two triangular blocks 33. A second spring 36 is provided between the regulating plate 35 and the inner wall of the control box 32. The upper and lower walls of the regulating plate 35 are hinged with guide wheels 37 through a hinge seat. The two guide wheels 37 respectively contact and roll with the two triangular blocks 33. A sliding rheostat 38 controlled by the regulating plate 35 is provided on the outer wall of the control box 32 away from the control channel 31. The servo motor 22 is electrically connected to the power supply device through the sliding rheostat 38.

[0024] Specifically, the sliding rheostat 38 includes a U-shaped fixed block 381 fixedly connected to the outer wall of the control box 32, a resistance rod 382 is fixedly connected between the inner walls on both sides of the U-shaped fixed block 381, a slider 383 is slidably installed on the resistance rod 382, and a push rod 384 is fixedly connected between the adjustment plate 35 and the slider 383. The more the slider 383 slides to the right on the resistance rod 382, the smaller the resistance of the circuit where the servo motor 22 is located, the smaller the current is, and the greater the power of the servo motor 22. The more the slider slides to the left on the resistance rod 382, the greater the resistance of the circuit where the servo motor 22 is located, the smaller the current is, and the smaller the power of the servo motor 22 is.

[0025] The upper end of the control channel 31 is fixedly connected to the exhaust port 5 , an on-off valve is provided in the exhaust port 5 , and a valve plate is provided on one side of the control channel 31 close to the control box 32 .

[0026] In order to solve the problem in the prior art that the stirring rate cannot be adjusted in real time as the fermentation progresses, the present invention provides a regulating mechanism 3. During the fermentation process, the valve plate is opened regularly to discharge the carbon dioxide gas generated by the fermentation between units into the control box 32. The stirring rate is adjusted by the change in the gas volume. The specific adjustment process is as follows: During the initial fermentation, microbial activity is relatively strong, and a large amount of carbon dioxide gas is produced. The air pressure in the control box 32 increases significantly, and when the valve plate is opened, the two triangular blocks 33 move farther apart from each other, causing the adjustment plate 35 to move a greater distance toward the resistance rod 382. The push rod 384 drives the slide 383 to slide a greater distance on the resistance rod 382, thereby reducing the resistance of the circuit in which the servo motor 22 is located and increasing the current. The servo motor 22 drives the guide rail 23 to rotate faster, and the spiral stirring rod 11 stirs the waste at a higher rate, thereby avoiding insufficient oxygen supply in the early fermentation stage. As the fermentation becomes stable, the activity of microorganisms is low, the amount of carbon dioxide gas produced is small, the air pressure in the control box 32 increases less, and the distance that the slide 383 slides on the resistance rod 382 is shorter, so that the resistance of the circuit where the servo motor 22 is located is larger and the current is smaller. The servo motor 22 drives the guide rail 23 to rotate slowly, and the spiral stirring rod 11 has a low stirring rate for the waste, avoiding excessive oxygen supply and unnecessary disturbances, saving energy while improving product quality, and being able to adjust the stirring rate in real time according to the fermentation reaction.

[0027] At the same time, after the carbon dioxide gas is discharged into the control box 32, the valve plate is closed to ensure that the gas pressure in the control box 32 no longer changes, thereby ensuring the adjustment of the spiral stirring rod 11. The on-off valve is then opened to discharge the gas in the fermentation tank 1, thereby avoiding excessive air pressure inside the fermentation tank 1 and affecting the next adjustment of the spiral stirring rod 11. Before each adjustment of the stirring rate of the spiral stirring rod 11, the gas in the control box 32 can be discharged through an additional exhaust valve to avoid the air pressure in the control box 32 affecting the adjustment work.

[0028] A supplement component 39 is also provided in the regulating mechanism 3, which is used to supplement the carbon source during the fermentation process, and the amount of carbon source supplementation changes as the fermentation progresses. The regulating mechanism 3 includes a suction frame 391 fixedly connected to the upper and lower outer walls of the control box 32, and each suction frame 391 is sealed and slidably connected with a piston 392, and each piston 392 is fixedly connected to the corresponding triangular block 33 with a connecting rod 393. Each suction frame 391 is fixedly connected to a drainage pipe 394, and the two drainage pipes 394 extend from both sides to the inside of the fermentation tank 1. A storage box 395 is fixedly connected to the outer wall of the fermentation tank 1, and a suction pipe 396 is fixedly connected to each suction frame 391 and the storage box 395.

[0029] Specifically, the carbon source stored in the storage box 395 is a liquid carbon source, such as an ethanol solution, an acetic acid solution, etc., which can be quickly dissolved in the fermentation material to facilitate absorption and utilization by microorganisms.

[0030] Specifically, each liquid suction pipe 396 and liquid discharge pipe 394 is provided with a one-way valve. Through the setting of the one-way valve, when the piston 392 and the suction frame 391 move back and forth for one cycle, the carbon source in the storage box 395 can only be pumped into the suction frame 391, and the carbon source in the suction frame 391 can only be pumped out into the fermentation tank 1, thereby avoiding backflow.

[0031] Specifically, the height of the waste in the fermentation tank 1 is lower than the height of the drainage pipe 394, so as to avoid the waste from clogging the drainage pipe 394 during fermentation and affecting the discharge of the carbon source.

[0032] It is worth mentioning that the present invention sets a supplement component 39. During the fermentation process, each time the stirring rate is adjusted, the movement of the two triangular blocks 33 will drive the piston 392 to move, thereby pumping the carbon source in the storage box 395 into the suction frame 391 through the liquid pumping pipe 396, and pumping the carbon source in the suction frame 391 out to the fermentation tank 1 through the liquid discharge pipe 394, thereby realizing the addition of the carbon source, thereby providing the energy required by the microorganisms and promoting their growth and metabolism. At the same time, the amount of carbon source added gradually decreases as the fermentation proceeds. In the early stage of fermentation, due to the two triangular blocks 33, the carbon source in the storage box 395 is pumped into the suction frame 391 through the liquid pumping pipe 396. The angle blocks 33 are relatively far apart from each other, so that the piston 392 moves a relatively long distance in the suction frame 391, and more carbon source is sucked into the fermentation tank 1, thereby avoiding too little carbon source being supplemented, which would restrict the growth and metabolism of microorganisms, resulting in a slow or incomplete fermentation process, thereby affecting the yield of the final product. When the subsequent fermentation tends to be stable, the two triangle blocks 33 are relatively far apart from each other, and less carbon source is sucked into the fermentation tank 1, thereby avoiding too much carbon source being supplemented, which would lead to excessive growth of microorganisms, produce excessive by-products (such as harmful acids or gases), and reduce the quality of the product.

[0033] The present invention can be explained through the following operation mode: During processing, the livestock breeding waste is transported into the fermentation tank 1 through the feed port 12, and the servo motor 22 is turned on to drive the rotating rod 21 to rotate, so that the guide rail 23 rotates, and the bevel gear 26 performs a circular motion along the bevel gear ring 27, driving the reciprocating screw rod 25 to rotate, so that during the rotation of the guide rail 23, the slider 24 can drive the spiral stirring rod 11 to perform a reciprocating horizontal displacement, so that the spiral stirring rod 11 continuously changes its position along the spiral trajectory during stirring, thereby increasing the coverage area of the spiral stirring rod 11 during stirring. During the reciprocating horizontal displacement of the slider 24, the transmission gear 211 on the transmission rod 29 will perform a reciprocating horizontal displacement along the rack 210, so that the spiral stirring rod 11 continuously rotates in the opposite direction; The valve plate is opened regularly to allow the carbon dioxide gas generated by the fermentation between the units to be discharged into the control box 32. The stirring rate is adjusted by the change in the amount of gas. In the early stage of fermentation, the air pressure in the control box 32 increases significantly. When the valve plate is opened, the two triangular blocks 33 are separated from each other by a large distance. The slide 383 slides on the resistance rod 382 for a large distance, and the servo motor 22 drives the guide rail 23 to rotate faster. As the fermentation becomes stable, the air pressure in the control box 32 increases less, and the servo motor 22 drives the guide rail 23 to rotate slower. After the carbon dioxide gas is discharged into the control box 32, the valve plate is closed and the on-off valve is opened to discharge the gas in the fermentation tank 1, thereby preventing the internal air pressure of the fermentation tank 1 from being too high and affecting the next adjustment of the spiral stirring rod 11. Before each adjustment of the stirring speed of the spiral stirring rod 11, the gas in the control box 32 is discharged through a separately provided exhaust valve; During the fermentation process, each time the stirring rate is adjusted, the movement of the two triangular blocks 33 will drive the piston 392 to move, thereby pumping the carbon source in the storage box 395 into the suction frame 391 through the suction pipe 396, and pumping the carbon source in the suction frame 391 out into the fermentation tank 1 through the discharge pipe 394, thereby realizing the addition of the carbon source. In the early stage of fermentation, the two triangular blocks 33 are far apart from each other, and more carbon source is sucked into the fermentation tank 1 to avoid too little carbon source being supplemented. When the subsequent fermentation tends to be stable, the two triangular blocks 33 are far apart from each other, and less carbon source is sucked into the fermentation tank 1 to avoid too much carbon source being supplemented.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A livestock breeding waste recycling and reprocessing device, characterized in that: include: A fermentation tank (1), wherein a spiral stirring rod (11) is provided inside the fermentation tank (1), a feed port (12) is provided on the outer wall of the fermentation tank (1), and a discharge port (13) is provided at the lower end of the fermentation tank (1); A stirring and mixing mechanism (2), the stirring and mixing mechanism (2) comprising a rotating rod (21) rotatably connected to the inner top wall of a fermentation tank (1), a servo motor (22) for driving the rotating rod (21) fixedly connected to the upper end of the fermentation tank (1), a guide rail (23) fixedly connected to the bottom end of the rotating rod (21), a slider (24) slidably connected to the inside of the guide rail (23), a reciprocating screw (25) rotatably connected between the inner walls of both sides of the guide rail (23), one end of the reciprocating screw (25) extending outside the guide rail (23) and fixedly connected to a bevel gear (26), the The inner top wall of the fermentation tank (1) is fixedly connected to a bevel gear ring (27) meshing with a bevel gear (26); the slider (24) is threadedly connected to the reciprocating screw (25); the lower end of the slider (24) is fixedly connected to a rotating seat (28); the lower end of the rotating seat (28) is rotatably connected to a transmission rod (29); the bottom end of the transmission rod (29) is fixedly connected to the spiral stirring rod (11); the lower end of the guide rail (23) is fixedly connected to a rack (210); and the transmission rod (29) is fixedly connected to a transmission gear (211) meshing with the rack (210); The regulating mechanism (3) is used to adjust the stirring rate of the spiral stirring rod (11) as the fermentation proceeds.

2. The livestock breeding waste recycling and reprocessing device according to claim 1, characterized in that: A limiting rod (4) is fixedly connected between the inner walls on both sides of the guide rail (23), and the slider (24) is penetrated by the limiting rod (4) and is slidably connected to the limiting rod (4).

3. The livestock breeding waste recycling and reprocessing device according to claim 1, characterized in that: The regulating mechanism (3) comprises a control channel (31) fixedly connected to the side wall of the fermentation tank (1) and communicating with the interior of the fermentation tank (1); the control channel (31) is fixedly connected to a control box (32) at one end away from the fermentation tank (1); two triangular blocks (33) are sealed and slidably connected inside the control box (32); a first spring (34) is provided between each triangular block (33) and the inner wall of the control box (32); an regulating plate (35) is provided between the two triangular blocks (33); a second spring (36) is provided between the regulating plate (35) and the inner wall of the control box (32); the upper and lower walls of the regulating plate (35) are hingedly connected to guide wheels (37) through a hinge seat; the two guide wheels (37) respectively contact and roll with the two triangular blocks (33); a sliding rheostat (38) controlled by the regulating plate (35) is provided on the outer wall of the control box (32) on the side away from the control channel (31); and the servo motor (22) is electrically connected to the power supply device through the sliding rheostat (38).

4. The livestock breeding waste recycling and reprocessing device according to claim 3, characterized in that: The sliding rheostat (38) comprises a U-shaped fixing block (381) fixedly connected to the outer wall of the control box (32); a resistance rod (382) is fixedly connected between the inner walls of both sides of the U-shaped fixing block (381); a sliding plate (383) is slidably mounted on the resistance rod (382); and a push rod (384) is fixedly connected between the adjustment plate (35) and the sliding plate (383).

5. The livestock breeding waste recycling and reprocessing device according to claim 3, characterized in that: The upper end of the control channel (31) is fixedly connected to an exhaust port (5), an opening and closing valve is provided in the exhaust port (5), and a valve plate is provided on one side of the control channel (31) close to the control box (32).

6. The livestock breeding waste recycling and reprocessing device according to claim 3, characterized in that: The regulating mechanism (3) is further provided with a supplement component (39) for supplementing the carbon source during the fermentation process, and the supplement amount of the carbon source changes as the fermentation proceeds. The regulating mechanism (3) includes a suction frame (391) fixedly connected to the upper and lower outer walls of the control box (32), each of the suction frames (391) is sealed and slidably connected with a piston (392), each of the pistons (392) and the corresponding triangular block (33) is fixedly connected with a connecting rod (393), each of the suction frames (391) is fixedly connected with a drainage pipe (394), and the two drainage pipes (394) extend from both sides to the inside of the fermentation tank (1), respectively. A storage box (395) is fixedly connected to the outer wall of the fermentation tank (1), and a suction pipe (396) is fixedly connected to the storage box (395) in each of the suction frames (391).

7. The livestock breeding waste recycling and reprocessing device according to claim 6, characterized in that: A one-way valve is provided in each of the liquid extraction pipe (396) and the liquid discharge pipe (394).

8. The livestock breeding waste recycling and reprocessing device according to claim 6, characterized in that: The height of the waste in the fermentation tank (1) is lower than the height of the drainage pipe (394).