An organic liquid fertilizer production device and production process

Abstract

The present invention provides an organic liquid fertilizer production device and production process, which relates to the technical field of organic liquid fertilizer production, and includes a filtering mechanism, a biogas slurry tank, a sterilization and disinfection mechanism, a stirring tank, a quantum device, and a storage tank. The filtering mechanism is used to communicate with a biogas slurry pond, and the output end of the filtering mechanism is sequentially communicated with the storage tank through the biogas slurry tank, the sterilization and disinfection mechanism, the stirring tank, and the quantum device. The filtering mechanism includes a fine filter and a coarse filter, and the fine filter is communicated with the output end of the coarse filter. The sterilization and disinfection mechanism includes an ultraviolet sterilization device and an ozone disinfector, and the ozone disinfector is used to disinfect the inside of the biogas slurry tank. The output end of the biogas slurry tank is communicated with the ultraviolet sterilization device. The present invention effectively solves the environmental protection problem of secondary pollution of waste such as biogas slurry and livestock and poultry manure, and provides a new type of green and high-quality physical biological fertilizer for increasing agricultural production, improving quality, and preventing diseases.

Description

Technical Field

[0001] The present invention relates to the technical field of organic liquid fertilizer production, and particularly to an organic liquid fertilizer production device and a production process. Background Art

[0002] Organic liquid fertilizer is a liquid fertilizer based on organic substances, usually fermented from plant and animal residues or microorganisms. They are rich in nutrients such as nitrogen, phosphorus, potassium, etc., which are very beneficial to plant growth. Organic liquid fertilizer production equipment is a mechanical device used to process raw materials such as agricultural waste, animal manure, and plant residues into organic liquid fertilizers. The processing process of this equipment includes fermentation tanks, stirring equipment, filtration systems, and automatic filling equipment, which can effectively improve the waste utilization rate, convert agricultural waste into valuable organic fertilizers, and reduce the environmental burden of waste;

[0003] For example, the publication number: CN102249743B discloses a method for producing organic concentrated compound liquid fertilizer with biogas slurry at room temperature, aiming to provide a method for producing organic concentrated compound liquid fertilizer with low cost and high automation. In this method, biogas slurry is filtered through a biogas slurry filtration tank to remove large particulate matter including plant fibers and sand grains, and then enters the biogas slurry stock solution storage tank. It is pumped to a biogas slurry mechanical filtration device, a biogas slurry multi-media filtration device, and a biogas slurry precision filtration device to filter out macromolecular substances including algae, pesticide residues, and bacteria. Then, it is filtered through a biogas slurry cross-flow ultrafiltration device. The non-permeate enters the concentrated solution storage tank, and the permeate enters an aromatic polyamide membrane element concentration device for further concentration and separation. The separated concentrated solution enters the concentrated solution storage tank and is then transported to a biogas slurry mixing tank for the preparation of liquid fertilizer. Its permeate enters the purified water storage tank for equipment cleaning. The liquid fertilizer is then disinfected through an online sterilization device and packaged for use as a liquid fertilizer for crops, flowers, and other plants;

[0004] However, the sterilization and disinfection means used in traditional organic liquid fertilizer production equipment are relatively single, and the killing effect on microorganisms is limited, making it difficult to meet the high requirements of modern agriculture for fertilizer safety. In the production of organic liquid fertilizer, the molecular structure of the fertilizer is relatively large, and the absorption efficiency of crops is low, resulting in poor fertilizer efficiency. In addition, traditional solutions cannot effectively handle large particulate impurities and small particulate fiber substances in the liquid. Due to the high viscosity of organic liquid fertilizers, the filter is easily blocked by impurities, resulting in the liquid being unable to pass smoothly, and the production efficiency drops significantly. Although some solutions can improve the filtration effect by using multi-stage filtration, such as the above solution, frequent shutdowns are still required for filter element cleaning and replacement during cleaning, affecting the continuity of production. Therefore, there is an urgent need for an organic liquid fertilizer production device and a production process to solve such problems. Summary of the Invention

[0005] The object of the present invention is to solve the problems existing in the prior art that the means of sterilization and disinfection are relatively single, the killing effect on microorganisms is limited, it is difficult to meet the high requirements of modern agriculture for the safety of fertilizers, and frequent shutdowns are still required for filter element cleaning and replacement during cleaning, which affects the continuity of production.

[0006] To achieve the above object, the present invention adopts the following technical solutions: An organic liquid fertilizer production device includes a filtering mechanism, a biogas slurry tank, a sterilization and disinfection mechanism, a stirring tank, a quantum device, and a storage tank. The filtering mechanism is used to communicate with a biogas slurry pond. The output end of the filtering mechanism is sequentially communicated with the storage tank through the biogas slurry tank, the sterilization and disinfection mechanism, the stirring tank, and the quantum device. The filtering mechanism includes a fine filter and a coarse filter. The fine filter is communicated with the output end of the coarse filter. The sterilization and disinfection mechanism includes an ultraviolet sterilization device and an ozone disinfector. The ozone disinfector is used for disinfecting the inside of the biogas slurry tank. The output end of the biogas slurry tank is communicated with the ultraviolet sterilization device. Multiple groups of the filtering mechanism, the biogas slurry tank, the sterilization and disinfection mechanism, the stirring tank, the quantum device, and the storage tank are provided. Both the coarse filter and the fine filter include a filter housing, a filter element, a vacuum pump, and a cleaning mechanism. Multiple groups of filter elements are provided and are arranged vertically in the filter housing. The vacuum pump is arranged outside the bottom end of the filter housing. A solid-liquid separation plate is provided below the inside of the filter housing. The bottom of the lowermost filter element is assembled and connected above the solid-liquid separation plate. The edge of the solid-liquid separation plate is assembled and connected with the inner wall of the filter housing. A slag outlet and a liquid outlet are respectively provided on the upper and lower sides of the solid-liquid separation plate at the bottom of the filter housing. The center position at the upper end of the filter element is recessed downward. The cleaning mechanism includes a central shaft, a cleaning blade, and a receiving hopper. The central shaft rotatably penetrates through the central positions of the filter element and the receiving hopper. The cleaning blade is rotatably arranged between the receiving hopper and above the filter element and is linked with the central shaft. A water pipe and an air pipe are provided inside the central shaft. The feeding end of the upper end of the water pipe is communicated with an external water source. The air inlet end of the upper end of the air pipe is communicated with an external blower. A transition pipe is provided in the central shaft above the cleaning blade. Wind branch pipes and water branch pipes communicated with the air pipe and the water pipe are respectively provided inside the cleaning blade. The wind branch pipes and the water branch pipes are communicated with the water pipe and the air pipe through the transition pipe. One end of the water branch pipe penetrates through the cleaning blade and extends to the outside of the end far from the central shaft. The air inlet end of the wind branch pipe is located below the cleaning blade.

[0007] As a preferred embodiment, the output end of the fine filter is communicated with the corresponding biogas slurry tank through a flow meter. A liquid level gauge and a thermometer are respectively provided on the biogas slurry tank. Two biogas slurry tanks are provided and work alternately.

[0008] As a preferred embodiment, the solid-liquid separation plate is provided with a hollow structure. A motor is arranged inside the filter housing at the central position of the solid-liquid separation plate. The central shaft is driven to rotate by the motor. The provided motor is used to drive the rotation of the central shaft.

[0009] As a preferred embodiment, the upper end of the central shaft extends to the outside of the filter housing and is rotatably provided with a connecting pipe in a sealed manner. Inside the connecting pipe, there are an inner pipe and an outer pipe that are rotatably connected to the air duct and the water pipe. The upper end of the inner pipe and the side wall of the outer pipe are communicated with an external fan and a water source. The provided connecting pipe, inner pipe and outer pipe are used to communicate the air duct and the water pipe during rotation with the external fan and the water source.

[0010] As a preferred embodiment, the outer pipe is sleeved outside the inner pipe in a concentric circular ring shape. The structure of the upper end of the central shaft is the same as the internal structure of the connecting pipe. The air duct at the upper end of the central shaft is sealed and penetrates through the central position of the water pipe. By sealing and penetrating the air duct at the upper end of the central shaft through the central position of the water pipe, the air duct, the water pipe and the central shaft can be rotatably arranged concentrically, which is convenient for rotational connection with the connecting pipe.

[0011] As a preferred embodiment, an opening is provided at the central position of the material receiving hopper, and a blade is arranged at the lower end and slidably arranged above the cleaning blade. The provided blade is convenient for cutting entanglements or fibers, etc., and facilitates discharging of materials.

[0012] As a preferred embodiment, a guiding hopper is arranged above the outer arm of the filter element. The upper part of the guiding hopper inclines downward from the inside to the outside. The outer diameter of the guiding hopper is larger than the outer diameter of the material receiving hopper and smaller than the inner diameter of the filter housing. The provided guiding hopper is used to guide the slag discharged from above the filter element outward to prevent it from falling into the material receiving hopper below.

[0013] As a preferred embodiment, the air branch pipe is arranged below the water branch pipe. A strip-shaped groove is opened below the cleaning blade. An air inlet groove communicated with the strip-shaped groove is arranged below the air branch pipe. The air branch pipe and the air duct are communicated through a first valve body, and the water branch pipe and the water pipe are communicated through a second valve body. The lower part of the cleaning blade always adheres to the upper surface of the filter element, which is not only convenient for pushing large-particle sundries above the filter element out, but also convenient for sucking the particles adhering to the filter element into the transition pipe during rotation. During the sucking process, the first valve body is opened and the second valve body is closed. After cleaning is completed, the second valve body is closed and the second valve body is opened. The impurities collected in the transition pipe are discharged from the water branch pipe under the action of the water flow through the water outlet of the water pipe.

[0014] As a preferred embodiment, the water pipe is communicatively disposed inside the transition pipe through a nozzle, and a filter plate is provided at the position where the inside of the transition pipe communicates with the air duct. The provided filter plate is used to block the impurities from the air duct, so that the particulate matter can be temporarily stored in the transition pipe and will not be discharged from the air duct.

[0015] The present invention also provides a production process of an organic liquid fertilizer production device, including the following steps:

[0016] Step S1, after the biogas slurry in the biogas slurry pond is subjected to sedimentation treatment, it is deodorized by an aeration device;

[0017] Step S2, use a biogas slurry pump to pump the biogas slurry out of the sedimentation tank, filter the sand and stone impurities in the biogas slurry through a coarse filter, and then perform secondary filtration through a fine filter to isolate the small particles and fibers in the biogas slurry. The coarse filter is a sand and stone filter, and the fine filter is a disc filter;

[0018] Step S3, the filtered biogas slurry is introduced into a biogas slurry tank for alternative treatment;

[0019] Step S4, use an ozone disinfector combined with a gas-liquid mixing pump to mix and disinfect ozone and biogas slurry;

[0020] Step S5, use an ultraviolet germicidal device to sterilize the biogas slurry flowing through the pipeline to obtain pure biogas slurry;

[0021] Step S6, the pure biogas slurry enters a compounding and stirring tank, and is stirred by a compounding mixer. At the same time, the fertilizer-making raw materials in the raw material tank are pumped into the stirring tank through a raw material pump for stirring and compounding;

[0022] Step S7, after stirring is completed, the liquid fertilizer is subjected to small molecule treatment by a quantum device;

[0023] Step S8, the fertilizer finished product after being processed by the quantum device is loaded into a storage tank, and the storage tank filled with fertilizer is sealed by a capping machine and then enters a conveyor line and is transported to a finished fertilizer warehouse.

[0024] Compared with the prior art, the advantages and positive effects of the present invention are as follows.

[0025] The present invention is equipped with a coarse filter and a fine filter, which respectively perform hierarchical filtration on large particle substances and small particle impurities. Through the combined action of multiple filter elements and a vacuum pump, the filtration process is more efficient, and the liquid flow rate is significantly accelerated. In the face of relatively viscous biogas slurry, it can also be quickly filtered and will not be easily blocked. At the same time, it is equipped with a cleaning blade and a central shaft automatic cleaning device, which automatically removes the solid impurities on the filter element through mechanical movement and gas and water cleaning, and does not require frequent shutdown for cleaning.

[0026] The present invention integrates an ozone disinfection device and an ultraviolet sterilization device to form a dual disinfection system. The ozone disinfector is combined with a gas-liquid mixing pump, enabling the biogas slurry and ozone to fully contact, killing harmful microorganisms in the liquid. Subsequently, the remaining pathogens are further killed by ultraviolet rays, and agricultural waste such as livestock and poultry manure and biogas slurry is processed into organic liquid fertilizer, reducing environmental pollution caused by the waste and providing high-quality organic fertilizer for agricultural production. Moreover, during the disinfection and sterilization process, ozone disinfection and ultraviolet sterilization do not produce harmful by-products or residues, and the entire production process is green and environmentally friendly.

[0027] Through the vacuum pump provided in the present invention, the gas inside the filter housing is pumped downward. During the process of pumping out the gas, the liquid can accelerate and flow downward through the filter element until it flows out from the bottom of the filter housing, which can greatly accelerate the filtration speed.

[0028] By rotating the central shaft in the present invention, the rotation speed is determined according to requirements. For example, during the filtration process, it can rotate slowly, and when specifically cleaning during the suspension of filtration, it can rotate quickly to achieve a better cleaning effect through centrifugal force. The cleaning blade can be used to scrape and clean the upper surface of the filter element, so that debris will not always cover the filter holes of the filter element. Moreover, the cleaning blade is arc-shaped, and with the continuous downward extrusion of particulate matter above, solid debris can be discharged outward during rotation until it is discharged from the outer edge of the filter element to achieve the cleaning effect.

[0029] By connecting the air duct and the water pipe to an external fan and a water source respectively in the present invention, during the rotation of the cleaning blade, the air duct is connected to the air branch pipe, and the air branch pipe sucks the particulate matter on the surface of the filter element into the transition pipe. Then, the water pipe is connected to the water branch pipe, and the particulate matter sucked into the transition pipe is flushed out of the water branch pipe under the action of water flow and discharged from the slag outlet, resulting in a good cleaning effect on the filtering equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic flow chart of an organic liquid fertilizer production equipment and production process provided by the present invention;

[0031] Figure 2 It is a schematic top layout structure diagram of an organic liquid fertilizer production equipment and production process provided by the present invention;

[0032] Figure 3 It is a flow chart of an organic liquid fertilizer production equipment and production process provided by the present invention;

[0033] Figure 4 It is a schematic internal structure diagram of the fine filter of an organic liquid fertilizer production equipment and production process provided by the present invention;

[0034] Figure 5 It is a schematic assembly diagram of the cleaning mechanism and the filter element of an organic liquid fertilizer production equipment and production process provided by the present invention;

[0035] Figure 6 Schematic assembly diagram of the filter element and the solid-liquid separation plate for an organic liquid fertilizer production device and production process provided by the present invention;

[0036] Figure 7 Schematic diagram of the cleaning blade for an organic liquid fertilizer production device and production process provided by the present invention;

[0037] Figure 8 Schematic diagram of the internal structure of the central shaft and the cleaning blade for an organic liquid fertilizer production device and production process provided by the present invention;

[0038] Figure 9 Schematic assembly diagram of the central shaft and the transition pipe for an organic liquid fertilizer production device and production process provided by the present invention;

[0039] Figure 10 Schematic assembly diagram of the central pipe and the connecting pipe for an organic liquid fertilizer production device and production process provided by the present invention.

[0040] Legend:

[0041] 1. Biogas slurry tank; 2. Stirring tank; 3. Quantum device; 4. Storage tank; 511. Fine filter; 512. Coarse filter; 611. Ultraviolet sterilization device; 612. Ozone disinfector; 711. Filter housing; 712. Filter element; 713. Vacuum pump; 714. Solid-liquid separation plate; 8. Slag discharge port; 101. Central shaft; 102. Cleaning blade; 103. Feeding hopper; 11. Water pipe; 12. Air pipe; 13. Fan; 14. Transition pipe; 15. Air branch pipe; 16. Water branch pipe; 17. Flowmeter; 18. Liquid level gauge; 19. Thermometer; 20. Motor; 211. Connecting pipe; 212. Inner pipe; 213. Outer pipe; 22. Blade; 23. Guide hopper; 241. Strip-shaped groove; 242. Air inlet groove; 243. First valve body; 244. Second valve body; 25. Sprayer; 26. Filter plate. Detailed implementation manners

[0042] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0043] Please refer to Figures 1 - 10, the present invention provides a technical solution: an organic liquid fertilizer production device, including a filtering mechanism, a biogas slurry tank 1, a sterilization and disinfection mechanism, a stirring tank 2, a quantum device 3 and a storage tank 4. The filtering mechanism is used to communicate with the biogas slurry pond, and the output end of the filtering mechanism is sequentially communicated with the storage tank 4 through the biogas slurry tank 1, the sterilization and disinfection mechanism, the stirring tank 2 and the quantum device 3. The filtering mechanism includes a fine filter 511 and a coarse filter 512, and the output end of the fine filter 511 is communicated with the output end of the coarse filter 512. The sterilization and disinfection mechanism includes an ultraviolet sterilization device 611 and an ozone disinfector 612. The ozone disinfector 612 is used to disinfect the inside of the biogas slurry tank 1, and the output end of the biogas slurry tank 1 is communicated with the ultraviolet sterilization device 611. Multiple groups are provided for the filtering mechanism, the biogas slurry tank 1, the sterilization and disinfection mechanism, the stirring tank 2, the quantum device 3 and the storage tank 4. Both the coarse filter 512 and the fine filter 511 include a filter housing 711, a filter element 712, a vacuum pump 713 and a cleaning mechanism. Multiple groups of filter elements 712 are provided and arranged vertically in the filter housing 711. The vacuum pump 713 is arranged outside the bottom end of the filter housing 711. A solid-liquid separation plate 714 is provided below the inside of the filter housing 711. The bottom of the lowermost filter element 712 is assembled and connected above the solid-liquid separation plate 714. The edge of the solid-liquid separation plate 714 is assembled and connected with the inner wall of the filter housing 711. A slag outlet 8 and a liquid outlet are respectively provided on the upper and lower sides of the solid-liquid separation plate 714 at the bottom of the filter housing 711. The center position of the upper end of the filter element 712 is recessed downward. The cleaning mechanism includes a central shaft 101, a cleaning blade 102 and a receiving hopper 103. The central shaft 101 rotates through the central positions of the filter element 712 and the receiving hopper 103. The cleaning blade 102 is rotatably arranged between the receiving hopper 103 and the upper part of the filter element 712 and is linked with the central shaft 101. A water pipe 11 and an air pipe 12 are provided inside the central shaft 101. The upper feeding end of the water pipe 11 is communicated with an external water source, and the upper air inlet end of the air pipe 12 is communicated with an external blower 13. A transition pipe 14 is provided in the central shaft 101 above the cleaning blade 102. Air branch pipes 15 and water branch pipes 16 respectively communicated with the air pipe 12 and the water pipe 11 are provided inside the cleaning blade 102. The air branch pipes 15 and the water branch pipes 16 are communicated with the water pipe 11 and the air pipe 12 through the transition pipe 14. One end of the water branch pipe 16 penetrates through the cleaning blade 102 and extends to the outside of the end far from the central shaft 101. The air inlet end of the air branch pipe 15 is located below the cleaning blade 102.

[0044] As Figures 1 - 10 shown, the output end of the fine filter 511 is communicated with the corresponding biogas slurry tank 1 through a flow meter 17. A liquid level gauge 18 and a thermometer 19 are respectively provided on the biogas slurry tank 1. Two biogas slurry tanks 1 are provided and work alternately.

[0045] As Figures 1 - 10As shown, the solid-liquid separation plate 714 is provided with a hollow structure. A motor 20 is arranged inside the filter housing 711 at the central position of the solid-liquid separation plate 714. The central shaft 101 is driven to rotate by the motor 20. The provided motor 20 is used to drive the rotation of the central shaft 101.

[0046] As Figures 1 - 10 shown, the upper end of the central shaft 101 extends outside the filter housing 711 and is rotatably provided with a connecting pipe 211 in a sealed manner. Inside the connecting pipe 211, there are an inner pipe 212 and an outer pipe 213 that are rotatably connected to the air duct 12 and the water pipe 11. The upper end of the inner pipe 212 and the side wall of the outer pipe 213 are communicated with the external fan 13 and the water source. The provided connecting pipe 211, inner pipe 212, and outer pipe 213 are used to communicate the air duct 12 and the water pipe 11 during rotation with the external fan 13 and the water source.

[0047] As Figures 1 - 10 shown, the outer pipe 213 is sleeved outside the inner pipe 212 in a concentric ring shape. The upper end structure of the central shaft 101 is the same as the inner structure of the connecting pipe 211. The air duct 12 at the upper end of the central shaft 101 is sealed and passes through the central position of the water pipe 11. By sealing and passing the air duct 12 at the upper end of the central shaft 101 through the central position of the water pipe 11, the air duct 12 can be rotatably arranged concentrically with the water pipe 11 and the central shaft 101, facilitating the rotational connection with the connecting pipe 211.

[0048] As Figures 1 - 10 shown, an opening is provided at the central position of the material receiving hopper 103, and a blade 22 is provided at the lower end and is slidably arranged above the cleaning blade 102. The provided blade 22 is convenient for cutting entanglements or fibers, etc., facilitating the discharge of materials.

[0049] As Figures 1 - 10 shown, a guiding hopper 23 is provided above the outer arm of the filter element 712. The guiding hopper 23 slopes downward from the inside to the outside above. The outer diameter of the guiding hopper 23 is larger than the outer diameter of the material receiving hopper 103 and smaller than the inner diameter of the filter housing 711. The provided guiding hopper 23 is used to guide the slag discharged from above the filter element 712 outward to prevent it from falling into the lower material receiving hopper 103.

[0050] As Figures 1 - 10As shown, the air branch pipe 15 is arranged below the water branch pipe 16. A strip-shaped groove 241 is opened below the cleaning blade 102. An air inlet groove 242 communicated with the strip-shaped groove 241 is arranged below the air branch pipe 15. The air branch pipe 15 is communicated with the air duct 12 through a first valve body 243. The water branch pipe 16 is communicated with the water pipe 11 through a second valve body 244. The lower part of the cleaning blade 102 is always attached to the upper surface of the filter element 712, which is not only convenient for pushing the large-particle sundries above the filter element 712 out, but also convenient for sucking the particles attached to the filter element 712 into the transition pipe 14 during rotation. During the suction process, the first valve body 243 is opened and the second valve body 244 is closed. After the cleaning is completed, the second valve body 244 is closed and the second valve body 244 is opened. The impurities collected in the transition pipe 14 are discharged from the water branch pipe 16 under the action of the water flow through the water outlet of the water pipe 11.

[0051] As Figures 1 - 10 shown, the water pipe 11 is communicated with the inside of the transition pipe 14 through a spray head 25. A filter plate 26 is arranged at the position where the inside of the transition pipe 14 is communicated with the air duct 12. The filter plate 26 is arranged to block the impurities from the air duct 12, so that the particulate matter can be temporarily stored in the transition pipe 14 and will not be discharged from the air duct 12.

[0052] Step S1: After the biogas slurry in the biogas slurry pond is subjected to sedimentation treatment, it is deodorized by an aeration device;

[0053] Step S2: Use a biogas slurry pump to pump the biogas slurry out of the sedimentation tank, filter the sand and stone impurities in the biogas slurry through a coarse filter 512, and then perform secondary filtration through a fine filter 511 to isolate the small particles and fibers in the biogas slurry. The coarse filter 512 is a sand and stone filter, and the fine filter 511 is a disc filter;

[0054] Step S3: The filtered biogas slurry is introduced into the biogas slurry tank 1 for alternating treatment;

[0055] Step S4: Use an ozone disinfector 612 combined with a gas-liquid mixing pump to mix and disinfect ozone and biogas slurry;

[0056] Step S5: Use an ultraviolet sterilization device 611 to sterilize the biogas slurry flowing through the pipeline to obtain pure biogas slurry;

[0057] Step S6: The pure biogas slurry enters the compounding and stirring tank 2 and is stirred by a compounding stirrer. At the same time, the fertilizer-making raw materials in the raw material tank are pumped into the stirring tank 2 by a raw material pump for stirring and compounding;

[0058] Step S7: After the stirring is completed, the liquid fertilizer is subjected to small molecule treatment by a quantum device 3 to maximize the nutrients in the fertilizer, which is convenient for plant absorption;

[0059] Step S8: Load the finished fertilizer product processed by the quantum device 3 into the storage tank 4. After the storage tank 4 filled with fertilizer is sealed by a capping machine, it enters the conveyor line and is transported to the finished fertilizer warehouse.

[0060] Working principle:

[0061] When the material passes through the coarse filter 512 and the fine filter 511, it is respectively subjected to coarse filtration and fine filtration through the filter elements 712 of different materials inside, and finally an efficient and high-quality filtration effect is achieved. During filtration, the liquid slowly enters from the upper end of the filter housing 711 and drops into the uppermost receiving hopper 103. The liquid is limited by the receiving hopper 103 to gather towards the central position of the filter element 712. Start the vacuum pump 713 to extract the gas inside the filter housing 711 downward. During the process of extracting the gas, the liquid can accelerate downward through the filter element 712 until it flows out from the bottom of the filter housing 711, which can greatly accelerate the filtration speed. At the same time, since the biogas slurry is relatively viscous, it is easy to cover and block the upper part of the filter element 712. By rotating the central shaft 101, the rotation speed is determined according to requirements. For example, it can rotate slowly during the filtration process, and can rotate quickly when pausing filtration for special cleaning. A better cleaning effect can be achieved through centrifugal force. The cleaning blade 102 can be used to scrape and clean the upper surface of the filter element 712, so that the sundries will not always cover the filter holes of the filter element 712. And the cleaning blade 102 is arc-shaped. With the continuous downward extrusion of the particles above, the solid sundries can be discharged outward during rotation until they are discharged from the outer edge of the filter element 712 to achieve the cleaning effect. During the rotation of the cleaning blade 102, not all the particles will be discharged. Some particle sundries will be embedded in the filter element 712. At this time, connect the air duct 12 and the water pipe 11 to the external fan 13 and the water source respectively. During the rotation of the cleaning blade 102, connect the air duct 12 to the air branch pipe 15. The air branch pipe 15 sucks the particles on the surface of the filter element 712 into the transition pipe 14. Then connect the water pipe 11 to the water branch pipe 16. The particles sucked into the transition pipe 14 are flushed out of the water branch pipe 16 under the action of water flow and discharged from the slag outlet 8, so that the cleaning effect of the filtration equipment is good.

[0062] The above is only a preferred embodiment of the present invention, and it is not a limitation of the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. An organic liquid fertilizer production device, comprising a filtering mechanism, a biogas slurry tank (1), a sterilization and disinfection mechanism, a stirring tank (2), a quantum device (3) and a storage tank (4), wherein the filtering mechanism is used to be connected to a biogas slurry tank, and the output end of the filtering mechanism is connected to the storage tank (4) through the biogas slurry tank (1), the sterilization and disinfection mechanism, the stirring tank (2), and the quantum device (3) in sequence, characterized in that: The filtering mechanism comprises a fine filter (511) and a coarse filter (512); the fine filter (511) is connected to an output end of the coarse filter (512); the sterilization mechanism comprises an ultraviolet sterilization device (611) and an ozone sterilizer (612); the ozone sterilizer (612) is used to sterilize the interior of the biogas slurry tank (1); the output end of the biogas slurry tank (1) is connected to the ultraviolet sterilization device (611); the filtering mechanism, the biogas slurry tank (1), the sterilization mechanism, the stirring tank (2), the quantum device (3) and the storage tank (4) are all provided in multiple groups; the coarse filter (512) and the fine filter (511) each comprise a filter housing (711), a filter element (712), a vacuum pump (713) and a cleaning machine The filter element (712) is provided with a plurality of groups and is arranged in the filter housing (711) from top to bottom. The vacuum pump (713) is arranged outside the bottom end of the filter housing (711). A solid-liquid separation plate (714) is provided at the bottom of the filter housing (711). The bottom of the lowest filter element (712) is assembled and connected to the top of the solid-liquid separation plate (714). The edge of the solid-liquid separation plate (714) is assembled and connected to the inner wall of the filter housing (711). A slag outlet (8) and a liquid outlet are provided on the upper and lower sides of the solid-liquid separation plate (714) at the bottom of the filter housing (711). The center position of the upper end of the filter element (712) is arranged to be concave downwards. The cleaning mechanism comprises a central axis (101), cleaning leaves, and a plurality of cleaning blades. (102) and a receiving hopper (103), the central axis (101) is rotatably arranged to penetrate the center positions of the filter element (712) and the receiving hopper (103), the cleaning blade (102) is rotatably arranged between the receiving hopper (103) and the top of the filter element (712) and is linked to the central axis (101), a water pipe (11) and an air pipe (12) are arranged inside the central axis (101), the upper feed end of the water pipe (11) is connected to an external water source, and the upper air intake end of the air pipe (12) is connected to an external fan (13), a transition pipe (14) is arranged inside the central axis (101) above the cleaning blade (102), and the cleaning blade (102) is respectively provided with a transition pipe (14) connected to the air pipe (12) and the water pipe (11) An air branch pipe (15) and a water branch pipe (16) are provided, wherein the air branch pipe (15) and the water branch pipe (16) are connected to the water pipe (11) and the air pipe (12) through a transition pipe (14); one end of the water branch pipe (16) passes through the cleaning blade (102) and extends to the outside of one end away from the central axis (101); an air inlet end of the air branch pipe (15) is located below the cleaning blade (102); the air branch pipe (15) is provided below the water branch pipe (16); a strip groove (241) is provided below the cleaning blade (102); an air inlet groove (242) connected to the strip groove (241) is provided below the air branch pipe (15); the air branch pipe (15) and the air pipe (12) are connected via a first valve body (243);The water branch pipe (16) and the water pipe (11) are connected via the second valve body (244), and the bottom of the cleaning leaf (102) is always in contact with the upper surface of the filter element (712), which not only facilitates the expulsion of large particles of debris above the filter element (712), but also facilitates the suction of particles attached to the filter element (712) into the transition pipe (14) during rotation. During the suction process, the first valve body (243) is opened and the second valve body (244) is closed. After cleaning is completed, the second valve body (244) is closed and the second valve body (244) is opened, and the impurities collected in the transition pipe (14) are discharged from the water branch pipe (16) under the action of the water flow through the outlet water of the water pipe (11).

2. An organic liquid fertilizer production equipment according to claim 1, characterized in that: The output end of the fine filter (511) is connected to the corresponding biogas slurry tank (1) via a flow meter (17); a liquid level meter (18) and a thermometer (19) are respectively provided on the biogas slurry tank (1); the biogas slurry tank (1) is provided with two thermometers which work alternately.

3. An organic liquid fertilizer production equipment according to claim 2, characterized in that: The solid-liquid separation plate (714) is a hollow structure. A motor (20) is provided in the filter housing (711) at the center of the solid-liquid separation plate (714). The central shaft (101) is driven to rotate by the motor (20). The motor (20) is used to drive the central shaft (101) to rotate.

4. An organic liquid fertilizer production equipment according to claim 3, characterized in that: The upper end of the central axis (101) extends to the outside of the filter housing (711) and is provided with a connecting pipe (211) for sealing and rotation. The connecting pipe (211) is provided with an inner pipe (212) and an outer pipe (213) for rotationally connecting to the air duct (12) and the water pipe (11). The upper end of the inner pipe (212) and the side wall of the outer pipe (213) are connected to an external fan (13) and a water source. The connecting pipe (211), the inner pipe (212) and the outer pipe (213) are used to connect the air duct (12) and the water pipe (11) in the rotation process to the external fan (13) and the water source.

5. An organic liquid fertilizer production equipment according to claim 4, characterized in that: The outer tube (213) is concentrically annularly sleeved outside the inner tube (212); the structure of the upper end of the central axis (101) is identical to the internal structure of the connecting tube (211); the air duct (12) located at the upper end of the central axis (101) is sealed and penetrated at the center of the water pipe (11); by sealing and penetrating the air duct (12) at the upper end of the central axis (101) at the center of the water pipe (11), the air duct (12) can be rotatably arranged concentrically with the water pipe (11) and the central axis (101), thereby facilitating rotational connection with the connecting tube (211).

6. An organic liquid fertilizer production equipment according to claim 1, characterized in that: The receiving hopper (103) is provided with an opening at the center thereof and a blade (22) is provided at the lower end thereof so as to be slidably arranged above the cleaning leaf (102). The arranged blade (22) facilitates cutting of entangled materials or fibers, thereby facilitating discharge of the materials.

7. An organic liquid fertilizer production equipment according to claim 1, characterized in that: A guide bucket (23) is provided above the outer arm of the filter element (712); the upper portion of the guide bucket (23) is inclined downward from the inside to the outside; the outer diameter of the guide bucket (23) is larger than the outer diameter of the receiving bucket (103) and smaller than the inner diameter of the filter housing (711); the guide bucket (23) is used to guide slag discharged from the upper portion of the filter element (712) outward to prevent it from falling into the receiving bucket (103) below.

8. An organic liquid fertilizer production equipment according to claim 7, characterized in that: The water pipe (11) is connected to the interior of the transition pipe (14) via a nozzle (25); a filter plate (26) is provided at a position where the interior of the transition pipe (14) is connected to the air pipe (12); the filter plate (26) is used to block impurities from the air pipe (12), so that particulate matter can be temporarily stored in the transition pipe (14) and will not be discharged from the air pipe (12).

9. A production process of an organic liquid fertilizer production device, characterized in that: The organic liquid fertilizer production equipment according to any one of claims 1 to 8 is used, comprising the following steps: Step S1, after the biogas slurry in the biogas slurry pool is subjected to sedimentation treatment, it is subjected to deodorization treatment by an aeration device; Step S2, using a biogas slurry pump to pump biogas slurry out of the sedimentation tank, filtering sand and stone impurities in the biogas slurry through a coarse filter (512), and then filtering through a fine filter (511) for a second time to isolate small particles and fibers in the biogas slurry, wherein the coarse filter (512) is a sand and stone filter, and the fine filter (511) is a laminated filter; Step S3, the filtered biogas slurry is introduced into the biogas slurry tank (1) for alternating treatment; Step S4, using an ozone disinfector (612) in combination with a gas-liquid mixing pump to mix ozone and biogas slurry for disinfection; Step S5, using an ultraviolet sterilization device (611) to sterilize and eliminate the biogas slurry flowing through the pipeline to obtain pure biogas slurry; Step S6, the pure biogas slurry enters the compounding and mixing tank (2) and is mixed by the compounding and mixing machine, and at the same time, the fertilizer raw materials in the raw material tank are pumped into the mixing tank (2) by the raw material pump for mixing and compounding; Step S7, after the stirring is completed, the liquid fertilizer is processed into small molecules by the quantum device (3); Step S8, the finished fertilizer product processed by the quantum device (3) is loaded into the storage tank (4), and the storage tank (4) filled with the fertilizer is sealed by a capping machine and then enters the conveying line to be transported to the finished fertilizer warehouse.

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