Ecological pig farm manure fermentation fertilizer production device and production method

Abstract

The application discloses an ecological pig farm excrement fermentation fertilizer production device and a production method, belongs to the technical field of excrement fermentation fertilizer production, and comprises a fermentation tank for excrement material after fermentation treatment, a pretreatment mechanism including a spiral shaft arranged on one side of the fermentation tank and used for dewatering treatment of the excrement, a feeding structure provided on the pretreatment mechanism and including a feeding hopper arranged above the spiral shaft and used for feeding excrement raw materials, a stirring assembly including a stirring rod arranged in the fermentation tank and used for mixing the excrement material during fermentation, a discharging assembly for discharging the excrement after fermentation, and an auxiliary component. In the application, two groups of pretreatment mechanisms are cooperatively arranged to realize split feeding design, can be simultaneously or alternately operated, avoid process interruption caused by saturation or failure of a single group of equipment, greatly shorten the excrement treatment period, adapt to excrement output of pig farms of different scales, and improve the excrement treatment efficiency and continuity.

Description

Technical Field

[0001] This invention belongs to the field of manure fermentation fertilizer production technology, specifically a production device and method for manure fermentation fertilizer in ecological pig farms. Background Technology

[0002] With the advancement of ecological farming policies and the continuous improvement of environmental protection requirements, the harmless treatment and resource utilization of pig farm manure have become key issues that the industry urgently needs to address. Currently, traditional pig farm manure treatment methods often suffer from problems such as extensive processes and low treatment efficiency. Some farms directly discharge manure, which not only pollutes the soil, water, and air but also wastes resources. Other methods, such as using single solid-liquid separation equipment or simple fermentation tanks, suffer from defects such as incomplete solid-liquid separation, uneven oxygen supply during fermentation, and insufficient material mixing, resulting in long fermentation cycles, inconsistent quality of organic fertilizer products, and fugitive emissions of waste gas that can easily cause secondary pollution. Summary of the Invention

[0003] The purpose of this invention is to provide an ecological pig farm manure fermentation fertilizer production device and production method to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an ecological pig farm manure fermentation fertilizer production device, comprising: Fermentation tank, used for fermenting manure and wastewater after processing; The pretreatment mechanism includes a spiral shaft arranged on one side of the fermentation tank for dewatering the manure; the pretreatment mechanism also includes a feeding structure, including a feeding hopper arranged above the spiral shaft for feeding manure raw materials. The mixing assembly includes a stirring rod arranged in the fermentation tank for mixing the manure material during fermentation; it also includes a discharge assembly for discharging the fermented manure. Auxiliary components are used to supplement outside air during the fermentation of manure.

[0005] As a further preferred embodiment of this technical solution: the pretreatment mechanism further includes: The filter cartridge is fitted over the outside of the screw shaft and is used for solid-liquid separation of fecal waste. The screw shaft is rotatably connected to the filter cartridge. The box body is bolted to one side of the fermentation tank to support the filter cartridge, and the filter cartridge is fixed to the box body; The collection tank, located on the tank body and below the filter cartridge, is used to collect the waste liquid after separation. Motor 1 is located on one side of the housing, and the output end of Motor 1 is fixedly connected to the screw shaft.

[0006] As a further preferred embodiment of this technical solution: the pretreatment mechanism further includes: The pressure plate, slidably connected to the screw shaft, is used to apply pressure to the sewage. The spring is fixedly attached to one end of the helical shaft and to one side of the pressure plate at the other end. The discharge cylinder is installed through one end of the filter cylinder and the other end extends through the upper end of the fermentation tank, and is used to discharge the dehydrated manure. A valve, installed through one side of the tank, is used to discharge sewage and is connected to the collection tank.

[0007] As a further preferred embodiment of this technical solution: the pretreatment mechanism is provided in two sets, and is respectively located on both sides of the box.

[0008] As a further preferred embodiment of this technical solution, the feeding structure further includes: The feed cylinder is installed on the box body and connected to the filter cylinder, with the upper end of the feed cylinder being fixedly connected to the bottom of the feed hopper. The card plate is slidably connected to the conveying cylinder to control the flow of manure raw materials, and a sealing gasket is provided at the connection between the card plate and the conveying cylinder. A threaded rod, threadedly connected to one side of the clamping plate, is used to limit the clamping plate's movement. A fixed block is fixedly arranged on one side of the conveying cylinder, and one end of the threaded rod is threadedly connected to the fixed block.

[0009] As a further preferred embodiment of this technical solution: the conveying cylinder is provided in two sets, and is respectively connected to the housing of the two sets of pretreatment mechanisms.

[0010] As a further preferred embodiment of this technical solution: the stirring assembly further includes: A rotating shaft is rotatably connected to the upper end of the fermentation tank to drive the stirring rods to rotate. The stirring rods are fixedly connected to the rotating shaft in a cross pattern. Motor 2 is located at the top of the fermentation tank, and its output end is fixedly mounted on the rotating shaft.

[0011] As a further preferred embodiment of this technical solution: the discharge component includes: The discharge cylinder is installed through one side of the lower end of the fermentation tank and is used to discharge materials. A baffle is slidably connected to the unloading cylinder to control the opening and closing of the unloading cylinder, and a sealing gasket is provided at the connection between the baffle and the unloading cylinder. The cylinder is located on one side of the fermentation tank, and its output end is fixedly arranged on the upper end of the baffle.

[0012] As a further preferred embodiment of this technical solution: the auxiliary component includes: An air supply pipe is installed and fixed to the upper end of one side of the fermentation tank. The blower, installed inside the air supply pipe, is used to supply external gas to the fermentation tank; The filter screen is installed on the air supply pipe and located on the outside of the fan; A one-way valve, installed inside the gas supply pipe, is used to prevent gas from flowing back into the fermentation tank; An exhaust pipe runs through one side of the upper end of the fermentation tank to discharge the waste gas generated during fermentation. The other end of the exhaust pipe is connected to an odor treatment device.

[0013] As a further preferred embodiment of this technical solution: a production method for an ecological pig farm manure fermentation fertilizer production device includes the following steps: S1. Raw material feeding and diversion: Pig farm manure raw material is fed into the feeding hopper, the opening and closing of the clamp on the conveying cylinder is adjusted, and the threaded rod and the fixed block cooperate to limit the movement, so that the manure is guided into the filter cylinders of the pretreatment mechanism on both sides through the two sets of conveying cylinders, thereby realizing the raw material diversion treatment; S2. Pretreatment solid-liquid separation: The starting motor drives the screw shaft to rotate, and the screw shaft drives the manure to move inside the filter cartridge. At the same time, the pressure plate applies pressure to the manure under the action of the spring, which accelerates the solid-liquid separation. The separated waste liquid falls into the collection tank and is discharged and recycled through the valve. The dehydrated solid manure is sent into the fermentation tank through the discharge pipe. S3. Fermentation stirring and aeration: Start motor 2 to drive the rotating shaft and cross-shaped stirring rod to rotate, so as to evenly mix the manure materials in the tank; at the same time, start the blower in the air supply pipe to supply outside air into the tank, filter the impurities in the air, and the one-way valve prevents the backflow of gas in the tank, ensuring the oxygen supply required for aerobic fermentation. S4. Waste gas treatment: Waste gas generated during fermentation is introduced into odor treatment equipment through an exhaust pipe and discharged after being treated to meet standards; S5. Discharge and Collection: After the manure has fermented in the fermentation tank, start the cylinder to drive the baffle to slide, open the discharge cylinder, and discharge the fermented organic fertilizer material to complete the production.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. In this invention, the two sets of pretreatment mechanisms work together in a diversion feeding design, which can operate simultaneously or alternately, avoiding process interruption caused by saturation or failure of a single set of equipment, greatly shortening the manure treatment cycle, adapting to the manure output of pig farms of different sizes, and improving the efficiency and continuity of manure treatment.

[0015] 2. In this invention, the pretreatment stage achieves efficient solid-liquid separation through the dual action of spiral shaft propulsion and pressure plate extrusion, ensuring that the moisture content of solid manure meets the standard. Combined with cross-stirring and stable aeration in the fermentation tank, it ensures that the materials are mixed evenly and that aerobic fermentation is sufficient. The resulting organic fertilizer has balanced nutrients and a high degree of harmlessness, thus guaranteeing the fermentation quality and product quality.

[0016] 3. In this invention, after solid-liquid separation, the waste liquid can be recycled and reused, the solid is converted into high-quality organic fertilizer, and the fermentation waste gas is introduced into the odor treatment equipment through a special pipeline to meet the emission standards. This not only solves the problem of manure pollution in pig farms, but also realizes resource recycling, reduces environmental pressure and breeding costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an ecological pig farm manure fermentation fertilizer production device and production method according to the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of an ecological pig farm manure fermentation fertilizer production device and production method according to the present invention. Figure 2 ; Figure 3 This is a partial structural cross-section of an ecological pig farm manure fermentation fertilizer production device and method according to the present invention. Figure 1 ; Figure 4 This is a partial structural schematic diagram of an ecological pig farm manure fermentation fertilizer production device and production method according to the present invention; Figure 5 for Figure 3 Enlarged view of point A in the middle; Figure 6 This is a partial structural cross-section of an ecological pig farm manure fermentation fertilizer production device and method according to the present invention. Figure 2 ; Figure 7 for Figure 1 Enlarged view at point C; Figure 8 This is a cross-sectional view of an ecological pig farm manure fermentation fertilizer production device and production method according to the present invention. Figure 9 for Figure 8 Enlarged view at point B in the middle; Figure 10 This is a structural diagram illustrating the production device and method for producing fermented fertilizer from ecological pig farm manure according to the present invention.

[0018] Legend: 1. Fermentation tank; Pretreatment mechanism: 201, screw shaft; 202, filter cartridge; 203, collection tank; 204, housing; 205, motor 1; 206, pressure plate; 207, spring; 208, discharge cylinder; 209, valve; Feeding structure: 301, feed hopper; 302, conveying cylinder; 303, clamping plate; 304, threaded rod; 305, fixing block; Mixing components: 401, Motor 2; 402, Rotating shaft; 403, Stirring rod; Discharge components: 501, unloading cylinder; 502, baffle; 503, cylinder; Auxiliary components: 601, air supply pipe; 602, fan; 603, filter screen; 604, one-way valve; 605, exhaust pipe. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0021] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances. Example

[0022] Please see Figures 1-10 As shown, the present invention provides a technical solution: an ecological pig farm manure fermentation fertilizer production device, comprising: Fermentation tank 1 is used for fermenting manure and wastewater after fermentation. The pretreatment mechanism includes a spiral shaft 201 arranged on one side of the fermentation tank 1 for dewatering the manure; the pretreatment mechanism is also provided with a feeding structure, including a feeding hopper 301 arranged above the spiral shaft 201 for feeding manure raw materials. The mixing assembly includes a stirring rod 403 arranged in the fermentation tank 1 for mixing the manure material during fermentation; it also includes a discharge assembly for discharging the fermented manure. Auxiliary components are used to supplement outside air during the fermentation of manure.

[0023] It should be noted that the upper end of the fermentation tank 1 is also provided with a feeding port, and the upper end of the feeding port is provided with a closed cover connected by bolts, which is used to add crushed straw into the fermentation tank 1, thereby adjusting the carbon-nitrogen ratio of fermentation.

[0024] Among them, the pretreatment unit dehydrates, the mixing component mixes, and the auxiliary component supplements oxygen, so as to realize the aerobic fermentation of manure in fermentation tank 1, and complete the harmless treatment and resource transformation of manure.

[0025] It should also be understood that fermentation tank 1 can be a tank-shaped tank for treating small batches of manure, or it can be a pool-shaped tank (such as...). Figure 10 (As shown) To process large quantities of manure, users can choose between tank-shaped or pool-shaped fermentation tanks according to the scale of the pig farm to meet the required manure processing volume. The pool-shaped fermentation tank 1 can be embedded in the ground. When the fermentation tank 1 is embedded in the ground, a transportation channel should be reserved on the ground near the unloading cylinder. The fermentation tank 1 can also be placed on the ground. When the fermentation tank 1 is placed on the ground, an external support frame can be erected to facilitate subsequent operations. The pool-shaped fermentation tank 1 is equipped with a cement cover plate to facilitate the inspection of the manure inside.

[0026] In this embodiment, the pretreatment mechanism further includes: a filter cartridge 202, sleeved on the outside of the spiral shaft 201, used for solid-liquid separation of manure, and the spiral shaft 201 is rotatably connected to the filter cartridge 202; a housing 204, bolted to one side of the fermentation tank 1, used to support the filter cartridge 202, and the filter cartridge 202 is fixedly connected to the housing 204; a collection tank 203, set on the housing 204 and located below the filter cartridge 202, used to collect the separated waste liquid; and a motor 205, set on one side of the housing 204, and the output end of the motor 205 is fixedly arranged on the spiral shaft 201.

[0027] It should also be understood that the filter cartridge 202 is a cylindrical mesh metal structure. The screw shaft 201 is driven to rotate by the motor 205. During the movement of the manure in the filter cartridge 202, solid-liquid separation is achieved. The waste liquid falls into the collection tank 203, which is used to separate the solid and liquid in the manure and reduce the subsequent fermentation load.

[0028] In this embodiment, the pretreatment mechanism further includes: a pressure plate 206, slidably connected to the spiral shaft 201, used to apply pressure to the manure; a spring 207, one end of which is fixedly arranged at one end of the spiral shaft 201, and the other end of which is fixedly arranged on one side of the pressure plate 206; a discharge cylinder 208, which is installed through one end of the filter cylinder 202 and the other end of which is installed through the upper end of the fermentation tank 1, used to discharge the dehydrated manure; and a valve 209, which is installed through one side of the box 204, used to discharge sewage, and the valve 209 is connected to the collection tank 203.

[0029] In addition, the spring 207 pushes the pressure plate 206 to squeeze the manure and accelerate the seepage of water. The dehydrated solids are sent into the fermentation tank 1 through the discharge cylinder 208, and the waste liquid is discharged through the valve 209, which improves the dehydration efficiency of manure and makes the moisture content of solid manure meet the standard.

[0030] In this embodiment, specifically: the pretreatment mechanism is provided in two sets, and is respectively located on both sides of the box 204.

[0031] The two pretreatment units can operate simultaneously or separately, receiving the sewage conveyed by the feeding structure, improving pretreatment capacity, and ensuring continuous operation.

[0032] In this embodiment, specifically: the feeding structure further includes: a conveying cylinder 302, which is disposed on the housing 204 and connected to the filter cylinder 202, and the upper end of the conveying cylinder 302 is fixedly connected to the bottom of the feeding hopper 301; a clamping plate 303, which is slidably connected to the conveying cylinder 302 to control the flow of manure raw materials, and a sealing gasket is provided at the connection between the clamping plate 303 and the conveying cylinder 302; a threaded rod 304, which is threadedly connected to one side of the clamping plate 303 to limit the clamping plate 303; and a fixing block 305, which is fixedly arranged on one side of the conveying cylinder 302, and one end of the threaded rod 304 is threadedly connected to the fixing block 305.

[0033] It should be noted that by adjusting the opening and closing degree of the card plate 303 and limiting it with the threaded rod 304 and the fixed block 305, the flow rate of fecal waste in the conveying cylinder 302 is controlled, so as to achieve uniform conveying of fecal waste and adapt to the processing capacity of the pretreatment mechanism.

[0034] In this embodiment, specifically: the feeding cylinder 302 is provided in two sets, and is respectively connected to the housing 204 of the two sets of pretreatment mechanisms.

[0035] In addition, the sewage in the feed hopper 301 is introduced into the corresponding pretreatment mechanism through two sets of conveying cylinders 302, which ensures a balanced supply of raw materials to the two pretreatment mechanisms and improves the overall treatment efficiency.

[0036] In this embodiment, the stirring assembly further includes: a rotating shaft 402, which is rotatably connected to the upper end of the fermentation tank 1 to drive the stirring rod 403 to rotate, and the stirring rod 403 is fixedly arranged on the rotating shaft 402 in a cross shape; and a motor 401, which is located at the upper end of the fermentation tank 1, and its output end is fixedly arranged on the rotating shaft 402.

[0037] It should also be understood that the motor 401 drives the rotating shaft 402 to rotate, which in turn drives the cross-shaped stirring rod 403 to mix the manure in the tank, so that the manure material is mixed evenly and the fermentation reaction is complete.

[0038] In this embodiment, specifically: the discharge component includes: a discharge cylinder 501, which is disposed through one side of the lower end of the fermentation tank 1 for discharging materials; a baffle 502, which is slidably connected through the discharge cylinder 501 for controlling the opening and closing of the discharge cylinder 501, and a sealing gasket is provided at the connection between the baffle 502 and the discharge cylinder 501; and a cylinder 503, which is disposed on one side of the fermentation tank 1, and whose output end is fixedly arranged on the upper end of the baffle 502.

[0039] Among them, the cylinder 503 drives the baffle 502 to slide up and down, controlling the opening and closing of the unloading cylinder 501 and the discharge speed, so as to realize the controllable discharge of the fermented material and avoid leakage.

[0040] In this embodiment, the auxiliary components specifically include: an air supply pipe 601, which is fixedly connected to the upper end of one side of the fermentation tank 1; a blower 602, which is installed inside the air supply pipe 601 and is used to supply external gas to the fermentation tank 1; a filter screen 603, which is installed on the air supply pipe 601 and located outside the blower 602; a one-way valve 604, which is installed inside the air supply pipe 601 and is used to prevent backflow of gas in the fermentation tank 1; and an exhaust pipe 605, which is installed through one side of the upper end of the fermentation tank 1 and is used to discharge the waste gas generated during fermentation in the fermentation tank 1, with the other end of the exhaust pipe 605 connected to an odor treatment device.

[0041] The blower 602 delivers air into the tank through the air supply pipe 601, the filter screen 603 filters impurities, the one-way valve 604 prevents gas backflow, and the fermentation waste gas is discharged through the exhaust pipe 605 to ensure an aerobic environment in the tank and avoid waste gas pollution.

[0042] In this embodiment, specifically: a production method for an ecological pig farm manure fermentation fertilizer production device includes the following steps: S1. Raw material feeding and diversion: Pig farm manure raw material is fed into the feeding hopper, the opening and closing of the clamp on the conveying cylinder is adjusted, and the threaded rod and the fixed block cooperate to limit the movement, so that the manure is guided into the filter cylinders of the pretreatment mechanism on both sides through the two sets of conveying cylinders, thereby realizing the raw material diversion treatment; S2. Pretreatment solid-liquid separation: The starting motor drives the screw shaft to rotate, and the screw shaft drives the manure to move inside the filter cartridge. At the same time, the pressure plate applies pressure to the manure under the action of the spring, which accelerates the solid-liquid separation. The separated waste liquid falls into the collection tank and is discharged and recycled through the valve. The dehydrated solid manure is sent into the fermentation tank through the discharge pipe. S3. Fermentation stirring and aeration: Start motor 2 to drive the rotating shaft and cross-shaped stirring rod to rotate, so as to evenly mix the manure materials in the tank; at the same time, start the blower in the air supply pipe to supply outside air into the tank, filter the impurities in the air, and the one-way valve prevents the backflow of gas in the tank, ensuring the oxygen supply required for aerobic fermentation. S4. Waste gas treatment: Waste gas generated during fermentation is introduced into odor treatment equipment through an exhaust pipe and discharged after being treated to meet standards; S5. Discharge and Collection: After the manure has fermented in the fermentation tank, start the cylinder to drive the baffle to slide, open the discharge cylinder, and discharge the fermented organic fertilizer material to complete the production.

[0043] Working principle or structural principle: First, the pig farm manure raw material is received through the feed hopper 301. The opening and closing degree of the clamping plates 303 on the two sets of conveying cylinders 302 is adjusted and the threaded rod 304 and the fixed block 305 are used to limit the flow of manure evenly into the filter cylinders 202 of the pretreatment mechanism on both sides. Subsequently, motor 205 drives the spiral shaft 201 to rotate, which pushes the manure into the filter cylinder 202. At the same time, spring 207 on the spiral shaft 201 pushes the pressure plate 206 to squeeze the manure and accelerate the seepage of water, thus achieving solid-liquid separation. The separated waste liquid falls into the collection tank 203 and is discharged and recycled through valve 209. The dehydrated solid manure is sent into fermentation tank 1 through discharge cylinder 208. Inside fermentation tank 1, motor 2 401 drives shaft 402 to rotate, which in turn drives cross-shaped stirring rod 403 to stir the material and make it evenly mixed. The blower 602 in the air supply pipe 601 delivers air filtered by filter screen 603 to the tank. One-way valve 604 prevents backflow of gas in the tank and provides sufficient oxygen for aerobic fermentation. The waste gas generated during fermentation is introduced into the odor treatment equipment through the exhaust pipe 605 and discharged after treatment to meet the standards. After fermentation is completed, the cylinder 503 is started to drive the baffle 502 to slide open the unloading cylinder 501 and discharge the fermented organic fertilizer material, thus realizing the harmless treatment and resource conversion of manure and sewage.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0045] 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.

[0046] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. An ecological pig farm manure fermentation fertilizer production device, characterized in that: include: Fermentation tank (1) is used for fermented manure materials; The pretreatment unit includes a spiral shaft (201) arranged on one side of the fermentation tank (1) for dewatering the manure; The pretreatment unit is also equipped with a feeding structure, including a feeding hopper (301) arranged above the screw shaft (201) for feeding manure raw materials; The mixing assembly includes a stirring rod (403) arranged in the fermentation tank (1) for mixing the manure material during fermentation; it also includes a discharge assembly for discharging the fermented manure. Auxiliary components are used to supplement outside air during the fermentation of manure.

2. The ecological pig farm manure fermentation fertilizer production device according to claim 1, characterized in that: The pretreatment mechanism also includes: The filter cartridge (202) is fitted outside the spiral shaft (201) and is used for solid-liquid separation of fecal waste, and the spiral shaft (201) is rotatably connected to the filter cartridge (202); The box body (204) is bolted to one side of the fermentation tank (1) to support the filter cartridge (202), and the filter cartridge (202) is fixed to the box body (204); The collection tank (203) is installed on the tank body (204) and located below the filter cartridge (202) for collecting the separated waste liquid; Motor 1 (205) is located on one side of the housing (204), and the output end of motor 1 (205) is fixedly arranged on the screw shaft (201).

3. The ecological pig farm manure fermentation fertilizer production device according to claim 2, characterized in that: The pretreatment mechanism also includes: The pressure plate (206) is slidably connected to the screw shaft (201) and is used to apply pressure to the sewage. The spring (207) is fixed at one end to one end of the helical shaft (201) and at the other end to one side of the pressure plate (206); The discharge cylinder (208) is installed through one end of the filter cylinder (202) and the other end is installed through the upper end of the fermentation tank (1) for discharging the dehydrated manure; A valve (209) is installed through one side of the tank (204) for discharging sewage, and the valve (209) is connected to the collection tank (203).

4. The ecological pig farm manure fermentation fertilizer production device according to claim 3, characterized in that: The pretreatment mechanism is provided in two sets, and is respectively located on both sides of the box (204).

5. The ecological pig farm manure fermentation fertilizer production device according to claim 4, characterized in that: The feeding structure also includes: The feed cylinder (302) is installed on the box (204) and connected to the filter cylinder (202), and the upper end of the feed cylinder (302) is fixedly connected to the bottom of the feed hopper (301); The card plate (303) is slidably connected to the conveying cylinder (302) to control the flow of manure raw materials, and a sealing gasket is provided at the connection between the card plate (303) and the conveying cylinder (302); A threaded rod (304) is threaded onto one side of the clamping plate (303) and is used to limit the clamping plate (303); The fixing block (305) is fixedly arranged on one side of the conveying cylinder (302), and one end of the threaded rod (304) is threadedly connected to the fixing block (305).

6. The ecological pig farm manure fermentation fertilizer production device according to claim 5, characterized in that: The conveying cylinder (302) is provided in two sets, and is respectively connected to the housing (204) of the two sets of pretreatment mechanisms.

7. The ecological pig farm manure fermentation fertilizer production device according to claim 6, characterized in that: The stirring assembly further includes: A rotating shaft (402) is rotatably connected to the upper end of the fermentation tank (1) to drive the stirring rod (403) to rotate, and the stirring rod (403) is fixedly arranged on the rotating shaft (402) in a cross shape; Motor 2 (401) is located at the upper end of the fermentation tank (1), and its output end is fixedly arranged on the rotating shaft (402).

8. The ecological pig farm manure fermentation fertilizer production device according to claim 7, characterized in that: The discharge component includes: The discharge cylinder (501) is installed through one side of the lower end of the fermentation tank (1) for discharging materials; A baffle (502) is slidably connected to the unloading cylinder (501) to control the opening and closing of the unloading cylinder (501), and a sealing gasket is provided at the connection between the baffle (502) and the unloading cylinder (501). The cylinder (503) is located on one side of the fermentation tank (1), and its output end is fixedly arranged on the upper end of the baffle (502).

9. The ecological pig farm manure fermentation fertilizer production device according to claim 8, characterized in that: The auxiliary components include: An air supply pipe (601) is fixed to the upper end of one side of the fermentation tank (1); A blower (602) is installed inside the gas supply pipe (601) to supply external gas to the fermentation tank (1); The filter screen (603) is installed on the air supply pipe (601) and located outside the fan (602); A one-way valve (604) is installed inside the gas supply pipe (601) to prevent backflow of gas in the fermentation tank (1); An exhaust pipe (605) is installed on one side of the upper end of the fermentation tank (1) to discharge the waste gas generated during fermentation in the fermentation tank (1), and the other end of the exhaust pipe (605) is connected to an odor treatment device.

10. A production method for an ecological pig farm manure fermentation fertilizer production device according to any one of claims 1-9, characterized in that: Includes the following steps: S1. Raw material feeding and diversion: Pig farm manure raw material is fed into the feeding hopper, the opening and closing of the clamp on the conveying cylinder is adjusted, and the threaded rod and the fixed block cooperate to limit the movement, so that the manure is guided into the filter cylinders of the pretreatment mechanism on both sides through the two sets of conveying cylinders, thereby realizing the raw material diversion treatment; S2. Pretreatment solid-liquid separation: The starting motor drives the screw shaft to rotate, and the screw shaft drives the manure to move inside the filter cartridge. At the same time, the pressure plate applies pressure to the manure under the action of the spring, which accelerates the solid-liquid separation. The separated waste liquid falls into the collection tank and is discharged and recycled through the valve. The dehydrated solid manure is sent into the fermentation tank through the discharge pipe. S3. Fermentation stirring and aeration: Start motor 2 to drive the rotating shaft and cross-shaped stirring rod to rotate, so as to evenly mix the manure materials in the tank; at the same time, start the blower in the air supply pipe to supply outside air into the tank, filter the impurities in the air, and the one-way valve prevents the backflow of gas in the tank, ensuring the oxygen supply required for aerobic fermentation. S4. Waste gas treatment: Waste gas generated during fermentation is introduced into odor treatment equipment through an exhaust pipe and discharged after being treated to meet standards; S5. Discharge and Collection: After the manure has fermented in the fermentation tank, start the cylinder to drive the baffle to slide, open the discharge cylinder, and discharge the fermented organic fertilizer material to complete the production.

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