Plant enzymolysis sterilization organic fertilizer production equipment and method

Abstract

The invention provides plant enzymolysis sterilization organic fertilizer production equipment and method. The plant enzymolysis sterilization organic fertilizer production equipment comprises a sterilization room, a feeding conveyor is arranged at the upper end of the sterilization room, a cutting table is arranged at one end of the feeding conveyor, a cutting assembly is arranged on the cutting table, and a feeding port is formed in the position, at one end of the cutting table, of the upper end of the sterilization room; a plurality of sterilization conveyors which are distributed from top to bottom are arranged in the sterilization room, the lower part of one side of the sterilization room is provided with a discharge port for the lowest sterilization conveyor to extend out, and an ultraviolet sterilization lamp tube is arranged above each sterilization conveyor in the sterilization room; an enzymolysis tank is arranged at the output end of the bottommost sterilization conveyor, a material pushing conveyor is arranged at the lower end in the enzymolysis tank, a plurality of separation strips are arranged in the enzymolysis tank and divide the enzymolysis tank into a plurality of strip-shaped enzymolysis areas, and a specific enzyme adding pipe is transversely arranged above the position, close to the sterilization conveyor, of the enzymolysis tank. The device is high in automation degree, and can accurately adjust enzymolysis conditions and effectively inhibit interference of infectious microbes.

Description

Technical Field

[0001] The invention belongs to the technical field of organic fertilizer production, and relates to equipment and a method for producing plant enzymatically sterilized organic fertilizer. Background Art

[0002] With the increasing demand for sustainable agricultural development, organic fertilizers are becoming an important alternative to chemical fertilizers due to their positive effects on soil improvement and ecological balance. Plant enzymatic sterilization organic fertilizers, as one of these innovative technologies, utilize specific enzymes (such as cellulases and proteases) to efficiently degrade complex organic matter (such as cellulose, hemicellulose, and protein) in plant raw materials, converting them into small molecule nutrients that are easily absorbed by plants. This, combined with microbial fermentation processes to achieve sterilization, results in highly efficient and environmentally friendly organic fertilizers.

[0003] However, existing plant enzymatic sterilization organic fertilizer production technologies still have many shortcomings. Traditional processes rely heavily on manual operations, such as simple enzymatic pile hydrolysis, where plant materials are mixed with enzyme preparations and then directly piled for fermentation. This model has the following problems:

[0004] Low degree of automation: The stacking process relies on manual turning, stirring, and monitoring, which is labor-intensive and inefficient, making it difficult to achieve large-scale and continuous production;

[0005] Insufficient control of environmental parameters: Enzymatic hydrolysis reactions have strict requirements on temperature, humidity, pH value and other conditions, while traditional stacking methods lack precise control methods, resulting in large fluctuations in enzyme activity and unstable degradation efficiency;

[0006] Microbial interference: A large number of microorganisms (such as bacteria and pathogens) naturally present in plant raw materials may compete with the target enzyme during the enzymatic hydrolysis process, inhibit the catalytic action of the enzyme, and even cause fermentation abnormalities and reduce product quality.

[0007] For example, existing patents (such as CN112778040A) propose optimizing the production process by mixing livestock and poultry manure with plant debris in a proportional manner and fermenting them in stages. However, these methods still require frequent manual intervention (such as turning the compost and adding water) and fail to fully address the negative impact of the raw material microbial community on enzymatic hydrolysis efficiency. Furthermore, high-temperature sterilization often relies on natural fermentation temperature increases, making it difficult to precisely control the sterilization effect. This can lead to residual pathogens or excessive heating that destroys nutrients. Summary of the Invention

[0008] The purpose of the present invention is to provide a plant enzymatic sterilization organic fertilizer production device and method, which has a high degree of automation, can accurately adjust the enzymatic hydrolysis conditions and effectively inhibit the interference of miscellaneous bacteria, so as to improve production efficiency, stabilize product quality and meet the needs of large-scale application.

[0009] To solve the above technical problems, the present application provides a kind of plant enzymolysis sterilization organic fertilizer production equipment, including sterilization room, the upper end of the sterilization room is horizontally provided with feed conveyor, one end of the feed conveyor is provided with cutting table, the upper end of the cutting table is provided with cutting assembly, the upper end of the sterilization room is opened with feed inlet at the cutting table away from the one end of the feed conveyor, a plurality of sterilization conveyors are horizontally arranged in the sterilization room and are distributed from top to bottom, the sterilization conveyors are staggered left and right, so that the material can be transported in a serpentine shape downwards, the lower part of one side of the sterilization room is provided with a discharge port for the output end of the lowermost sterilization conveyor to extend outward, and an ultraviolet sterilization lamp is arranged above each sterilization conveyor in the sterilization room.

[0010] An enzymolysis tank with an open upper end is arranged at the output end of the lowermost sterilization conveyor, a pushing conveyor is arranged at the lower end in the enzymolysis tank, a plurality of separation strips are arranged in the enzymolysis tank along the length direction of the sterilization conveyor, the lower end of each separation strip is in contact with the upper end of the conveying belt of the pushing conveyor, the separation strips divide the enzymolysis tank into a plurality of strip-shaped enzymolysis zones, a plurality of discharge ports corresponding to the strip-shaped enzymolysis zones are opened at the end of the enzymolysis tank away from the sterilization room, a specific enzyme adding pipe is transversely arranged above the enzymolysis tank near the sterilization conveyor, a specific enzyme spray pipe is connected downward in each strip-shaped enzymolysis zone, a first electromagnetic valve is arranged on each specific enzyme spray pipe, and a specific enzyme spray head is connected to the lower end of each specific enzyme spray pipe.

[0011] The present application further provides that an acidic solution adding pipe is transversely arranged above the enzymolysis tank near the sterilization conveyor, an acidic solution spray pipe is connected downward in each strip-shaped enzymolysis zone, a second electromagnetic valve is arranged on each acidic solution spray pipe, and an acidic solution spray head is connected to the lower end of each acidic solution spray pipe, an alkaline solution adding pipe is transversely arranged above the enzymolysis tank near the sterilization conveyor, an alkaline solution spray pipe is connected downward in each strip-shaped enzymolysis zone, a third electromagnetic valve is arranged on each alkaline solution spray pipe, and an alkaline solution spray head is connected to the lower end of each alkaline solution spray pipe, and the acidic solution adding pipe and the alkaline solution adding pipe are located on the side of the specific enzyme adding pipe close to the sterilization room.

[0012] The present invention is further configured as follows: the enzymatic hydrolysis tank is provided with a plurality of stirring modules distributed along its length direction; a stirring module is provided between the specific enzyme addition tube and the acidic solution addition tube and the alkaline solution addition tube; each stirring module includes a horizontal rotating shaft that transversely passes through each strip enzymatic hydrolysis zone, a stirring drive motor installed on the outside of the enzymatic hydrolysis tank and used to drive the horizontal rotating shaft to rotate; each horizontal rotating shaft is connected to a plurality of circumferentially distributed horizontal stirring shafts through a connecting shaft in each strip enzymatic hydrolysis zone.

[0013] The present invention is further configured as follows: a plurality of air injection pipes distributed along the length direction of the enzymatic hydrolysis tank are horizontally arranged above the specific enzyme addition pipe away from the sterilization room, and every two adjacent air injection pipes are separated by the stirring module; the bottom of each strip-shaped enzymatic hydrolysis area is provided with aeration pipes corresponding to the air injection pipes along its length direction; each aeration pipe is connected to the corresponding air injection pipe through a vertical air guide pipe; a plurality of aeration holes distributed along the length direction of each aeration pipe are opened on the lower side; an aeration pump is provided on one side of the enzymatic hydrolysis tank; the outlet end of the aeration pump is connected to an air heater; an electric heating wire is provided in the air heater; one end of each air injection pipe is connected to the outlet end of the air heater.

[0014] The present invention is further configured such that a connecting frame is provided at the upper end of the enzymatic hydrolysis tank, and each aeration pipe is upwardly provided with a fixed connecting strip connected to the connecting frame.

[0015] The present invention is further configured such that the cutting table is provided with ribs on both sides perpendicular to the feed port, the cutting assembly comprises two transverse cutting shafts and a longitudinal cutting shaft which are laterally connected and rotated between the two ribs, two cutting drive motors are installed outside the ribs for driving the transverse cutting shaft and the longitudinal cutting shaft to rotate respectively, a plurality of cutting discs are provided outside the transverse cutting shaft distributed along its length direction, a plurality of cutting strips are provided on the periphery of the longitudinal cutting shaft which are arranged along its length direction and distributed in a circular pattern, and the cutting edges of each cutting disc and each cutting strip can contact the upper end of the cutting table.

[0016] The present invention is further configured such that a plurality of transverse connecting strips are laterally arranged above each sterilization conveyor in the sterilization room, and each transverse connecting strip is downwardly provided with a plurality of rake teeth distributed along its length direction and extending to the upper surface of the conveyor belt of the corresponding sterilization conveyor.

[0017] The application is further provided with an extension conveyor transversely arranged at the output end of the lowermost sterilization conveyor, the width of the extension conveyor is wider than that of the sterilization conveyor, the enzyme hydrolysis tank is arranged on the side away from the sterilization room and below the extension conveyor, the upper end of the extension conveyor is rotationally connected with an extension rotating shaft parallel to the enzyme hydrolysis tank, an extension driving motor for driving the rotation of the extension rotating shaft is installed on the outer side of the extension conveyor, the front and rear parts of the extension rotating shaft are both provided with spiral pushing blades, the spiral directions of the two spiral pushing blades on the extension rotating shaft are opposite, and a gap is left between the two spiral pushing blades and the conveyor belt of the extension conveyor.

[0018] The application also discloses a plant enzyme hydrolysis sterilization organic fertilizer production method.

[0019] S1, plant raw materials are added to the conveyor belt of the feeding conveyor through the feeding structure, the raw materials are conveyed to the cutting assembly through the feeding conveyor, and the plant raw materials are cut into plant fragments with a length of 1-3 cm through the cutting assembly;

[0020] S2, the fragment raw materials fall into the sterilization conveyor in the sterilization room through the feeding port, and the plant fragments are conveyed downward in a snake shape through the sterilization conveyor, in the process, the plant fragments are continuously irradiated and sterilized by the ultraviolet sterilization lamp, and finally, the plant fragments are output from the discharge port of the sterilization room along the lowermost sterilization conveyor;

[0021] S3, the plant fragments fall into the strip-shaped enzyme hydrolysis area of the enzyme hydrolysis tank from the output end of the sterilization conveyor, the plant fragments in the strip-shaped enzyme hydrolysis area are slowly moved by the pushing conveyor, so that the stacking thickness of the plant fragments in the strip-shaped enzyme hydrolysis area is 30-40 cm, the pH value of the plant fragments is detected manually, the surface of the plant fragments is sprayed with the acidic solution or the alkaline solution through the acidic solution spray pipe or the alkaline solution spray pipe, the pH value is finally adjusted to 4.5-5.5, and then the acidic solution or the alkaline solution is uniformly mixed with the plant fragments through the stirring module;

[0022] S4, a mixed solution of cellulase, hemicellulase and pectinase is sprayed onto the surface of the plant fragments through the specific enzyme adding pipe, and then the mixed solution is uniformly mixed with the plant fragments through the stirring module, and the addition amount is 0.5%-2.0% of the weight of the plant fragments;

[0023] S5, the plant fragments in the strip-shaped enzyme hydrolysis area are continuously and slowly moved by the pushing conveyor in the enzyme hydrolysis process, in the process, air is filled into the air heater and heated by the air-lifting pump, and finally discharged into the plant fragments from the air-lifting pipe in the strip-shaped enzyme hydrolysis area, so that the temperature in the plant fragments is maintained at 40-55 DEG C;

[0024] S6. After 3-4 days of enzymatic hydrolysis, the plant debris is discharged from the strip-shaped enzymatic hydrolysis zone through the discharge port and placed in a pile for decomposition at room temperature. The pile thickness is 20-25 cm and the decomposition time is 12-25 days.

[0025] Further preferably, in step S2, the ultraviolet wavelength is 253.7nm, and the ultraviolet thickness is 30-100W / m 2 , exposure time is 20-30 minutes.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] First, by introducing an automated batching, conveying, mixing, enzymatic hydrolysis, and compost turning system, the present invention significantly reduces reliance on manual operations and enables continuous, intelligent production. This not only reduces labor intensity and labor costs, but also improves overall production efficiency, helping to promote the standardization and scale-up of plant enzymatic sterilization organic fertilizers, meeting the large-scale demand for high-quality organic fertilizers in modern agriculture.

[0028] Secondly, the present invention adopts an integrated control system including intelligent temperature control, humidity regulation and pH monitoring, which can provide more stable and suitable environmental conditions for enzymatic hydrolysis reactions, ensuring that key enzyme preparations such as cellulase function at the optimal active temperature and acid-base environment, thereby significantly improving the degradation efficiency and conversion rate of raw materials and ensuring the consistency and stability of product quality;

[0029] Third, the present invention uses ultraviolet rays to automatically sterilize plant raw materials before enzymatic hydrolysis, effectively inhibiting the reproduction and metabolic activities of naturally existing bacteria and pathogenic microorganisms in the plant raw materials, avoiding their competitive consumption with the enzymatic hydrolysis reaction, thereby improving the enzymatic hydrolysis efficiency and enhancing the safety and controllability of the subsequent fermentation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 A partial cross-sectional view showing the internal structure of the sterilization room;

[0032] Figure 3 Used to display cutting components on the cutting table;

[0033] Figure 4 Used to display the extension shaft and spiral propulsion blades on the extension conveyor;

[0034] Figure 5 Used to show the overall structure of the enzymatic hydrolysis tank;

[0035] Figure 6Used to show the overall structure of the mixing module;

[0036] Figure 7 Used to demonstrate the connection between the aeration pipe, the air injection pipe and the connecting frame.

[0037] Among them: 1. Sterilization room; 2. Feed conveyor; 3. Cutting table; 4. Sidewall; 5. Horizontal cutting shaft; 6. Vertical cutting shaft; 7. Cutting drive motor; 8. Cutting disc; 9. Cutting strip; 10. Feed port; 11. Sterilization conveyor; 12. Discharge port; 13. Ultraviolet sterilization lamp; 14. Horizontal connecting strip; 15. Rake teeth; 16. Extension conveyor; 17. Extension shaft; 18. Extension drive motor; 19. Spiral push blade; 20. Enzyme hydrolysis tank; 21. Pushing conveyor; 22. Dividing strip; 23. Strip enzymatic hydrolysis area; 24. Specific enzyme addition tube; 25 , specific enzyme nozzle; 26, first solenoid valve; 27, specific enzyme nozzle; 28, acid solution addition pipe; 29, acid solution nozzle; 30, second solenoid valve; 31, acid solution nozzle; 32, alkaline solution addition pipe; 33, alkaline solution nozzle; 34, third solenoid valve; 35, alkaline solution nozzle; 36, horizontal rotating shaft; 37, stirring drive motor; 38, connecting shaft; 39, horizontal stirring shaft; 40, air injection pipe; 41, aeration pipe; 42, aeration hole; 43, connecting frame; 44, fixed connecting strip; 45, aeration pump; 46, air heater; 47, discharge port. DETAILED DESCRIPTION

[0038] The following is a further detailed description of a plant enzymatic sterilization organic fertilizer production device and method proposed by the present invention in conjunction with the accompanying drawings and specific embodiments. According to the following description, the advantages and features of the present invention will become clearer. It should be noted that the accompanying drawings are all in a very simplified form and are not in precise proportions, and are only used to facilitate and clearly assist in explaining the purpose of the embodiments of the present invention. The same or similar reference numerals in the accompanying drawings represent the same or similar parts.

[0039] Example 1, with reference to Figures 1-7A plant enzymatic sterilization organic fertilizer production equipment includes a sterilization room 1, a feeding conveyor 2 is horizontally arranged at the upper end of the sterilization room 1, a cutting table 3 is arranged at one end of the feeding conveyor 2, a cutting assembly is arranged on the cutting table 3, and a rib 4 is arranged upward on both sides of the cutting table 3 vertically perpendicular to the feed port 10. The cutting assembly includes two transverse cutting shafts 5 and a longitudinal cutting shaft 6 that are laterally connected between the two ribs 4. Two shafts are installed outside the rib 4 for driving the transverse cutting shaft 5 and the longitudinal cutting shaft 6 to rotate. A cutting drive motor 7 is provided, and a plurality of cutting discs 8 are distributed along the length direction of the horizontal cutting shaft 5. A plurality of cutting strips 9 are provided on the periphery of the longitudinal cutting shaft 6 and are arranged along the length direction and distributed in a circular pattern. The cutting edges of each cutting disc 8 and each cutting strip 9 can contact the upper end of the cutting table 3. After passing through the cutting disc 8, the plant material is cut into strips. After passing through the rotating cutting strip 9, the strip-shaped plant material can be cut into fragments, and the cutting disc 8 and the cutting strip 9 can both play a role in pushing the material to move when rotating.

[0040] A feed port 10 is located at the upper end of the sterilization room 1, at the end of the cutting table 3 away from the feed conveyor 2. Four sterilization conveyors 11 are horizontally arranged in a downward-distributed pattern within the sterilization room 1. These conveyors 11 are staggered left and right, allowing materials to be conveyed downward in a serpentine pattern. A discharge port 12 is located at the lower portion of one side of the sterilization room 1, at the same height as the lowest sterilization conveyor 11. The output of the lowest sterilization conveyor 11 extends out of the sterilization room 1 through the discharge port 12. Multiple ultraviolet germicidal lamps 13 are located above each sterilization conveyor 11 within the sterilization room 1, which sterilize the plant debris. In the sterilization room 1, a plurality of transverse connecting bars 14 are arranged transversely above each sterilization conveyor 11. Each transverse connecting bar 14 is provided downward with a plurality of rake teeth 15 distributed along its length direction and extending to the upper surface of the conveyor belt of the corresponding sterilization conveyor 11. The rake teeth 15 can turn over the plant fragments conveyed by the sterilization conveyor 11 so that the plant fragments can be fully sterilized.

[0041] At the output end of the lowest sterilization conveyor 11, there is a horizontal extension conveyor 16. The width of the extension conveyor 16 is wider than that of the sterilization conveyor 11 and is four times that of the sterilization conveyor 11. The upper end of the extension conveyor 16 is rotatably connected to an extension shaft 17 parallel to the enzymatic hydrolysis tank 20. An extension drive motor 18 is installed on the outside of the extension conveyor 16 to drive the extension shaft 17 to rotate. The front and rear parts of the extension shaft 17 are both provided with a spiral push blade 19. The spiral directions of the front and rear spiral push blades 19 on the extension shaft 17 are opposite, and there is a gap between the two spiral push blades 19 and the conveyor belt of the extension conveyor 16. The plant fragments that fall from the sterilization conveyor 11 to the extension conveyor 16 are evenly laid to both sides under the action of the two rotating spiral push blades 19 to increase the laying width of the plant fragments.

[0042] An enzymolysis tank 20 with an open top is provided at the extension conveyor 16 away from the sterilization conveyor 11. The width of the enzymolysis tank 20 is equal to the width of the extension conveyor 16, and the length of the enzymolysis tank 20 is sufficient for the plant fragments to undergo an enzymolysis reaction for a sufficient time. The enzymolysis tank 20 is located below the extension conveyor 16, and a pusher conveyor 21 is provided at the lower end of the enzymolysis tank 20. The material in the enzymolysis tank 20 is slowly moved by the pusher conveyor 21. The enzymolysis tank 20 is provided with a plurality of dividing strips 22 arranged along the length direction of the sterilization conveyor 11. The lower end of each dividing strip 22 is in contact with the upper end of the conveyor belt of the pusher conveyor 21. The dividing strips 22 divide the enzymolysis tank 20 into six strip enzymolysis areas 23. The end of the enzymolysis tank 20 away from the sterilization room 1 is provided with six discharge ports 47 that are connected to the strip enzymolysis areas 23 in a one-to-one correspondence. A specific enzyme addition pipe 24 is horizontally arranged above the enzymolysis tank 20 near the sterilization conveyor 11. The specific enzyme addition pipe 24 is downwardly connected to a specific enzyme nozzle 25 in each strip-shaped enzymolysis area 23. Each specific enzyme nozzle 25 is provided with a first solenoid valve 26. The lower end of each specific enzyme nozzle 25 is connected to a specific enzyme nozzle 27, and the specific enzyme solution can be sprayed into each strip-shaped enzymolysis area 23 through the specific enzyme nozzle 27.

[0043] An acid solution addition pipe 28 is horizontally arranged above the enzymatic hydrolysis tank 20 near the sterilization conveyor 11. The acid solution addition pipe 28 is downwardly connected to an acid solution nozzle 29 in each strip-shaped enzymatic hydrolysis zone 23. Each acid solution nozzle 29 is provided with a second solenoid valve 30, and the lower end of each acid solution nozzle 29 is connected to an acid solution nozzle 31. An alkaline solution addition pipe 32 is horizontally arranged above the enzymolysis tank 20 near the sterilization conveyor 11. The alkaline solution addition pipe 32 is connected to an alkaline solution nozzle 33 downward in each strip-shaped enzymolysis zone 23. Each alkaline solution nozzle 33 is provided with a third solenoid valve 34. The lower end of each alkaline solution nozzle 33 is connected to an alkaline solution nozzle 35. The acidic solution addition pipe 28 and the alkaline solution addition pipe 32 are both located on the side of the specific enzyme addition pipe 24 close to the sterilization room 1. The pH value of the plant fragments is adjusted by cooperating with the acidic solution nozzle 31 and the alkaline solution nozzle 35.

[0044] Three stirring modules are provided in the enzymatic hydrolysis tank 20 and distributed along its length. A stirring module is provided between the specific enzyme addition tube 24 and the acidic solution addition tube 28 and the alkaline solution addition tube 32. Each stirring module includes a horizontal rotating shaft 36 that passes horizontally through each strip enzymatic hydrolysis zone 23, and a stirring drive motor 37 installed on the outside of the enzymatic hydrolysis tank 20 and used to drive the horizontal rotating shaft 36 to rotate. Each horizontal rotating shaft 36 is connected to a plurality of horizontal stirring shafts 39 distributed in a circle through a connecting shaft 38 in each strip enzymatic hydrolysis zone 23. When the stirring drive motor 37 drives the horizontal rotating shaft 36 to rotate, the plant fragments can be stirred through the horizontal stirring shaft 39.

[0045] Two air injection pipes 40 are horizontally arranged above the enzymatic hydrolysis tank 20, distributed along its length direction, above the specific enzyme addition pipe 24 away from the sterilization room 1. Every two adjacent air injection pipes 40 are separated by a stirring module. The bottom of each strip-shaped enzymatic hydrolysis area 23 is provided with an aeration pipe 41 corresponding to the air injection pipe 40 along its length direction. Each aeration pipe 41 is connected to the corresponding air injection pipe 40 through a vertical air guide pipe. The lower side of each aeration pipe 41 is provided with a plurality of aeration holes 42 distributed along its length direction. The aeration holes 42 are downwardly facing to effectively prevent them from being blocked by plant debris. A connecting frame 43 is provided at the upper end of the enzymatic hydrolysis tank 20, and each aeration pipe 41 is provided with a plurality of fixed connecting strips 44 connected to the connecting frame 43 upward. An aeration pump 45 is provided on one side of the enzymatic hydrolysis tank 20. The outlet end of the aeration pump 45 is connected to an air heater 46. An electric heating wire (not shown) is provided in the air heater 46. One end of each air injection pipe 40 is connected to the outlet end of the air heater 46, so that the aeration pump 45 can fill air into the air heater 46 for heating.

[0046] Example 2, based on the plant enzymatic sterilization organic fertilizer production equipment of Example 1, proposes a plant enzymatic sterilization organic fertilizer production method, comprising the following steps:

[0047] S1. The plant material is added to the conveyor belt of the feed conveyor 2 through the feeding structure, and the raw material is conveyed to the cutting assembly through the feed conveyor 2. The plant material passes through the cutting disc 8 and is cut into strips. After passing through the rotating cutting bar 9, the strips of plant material can be cut into pieces, and finally the plant material is cut into plant pieces of 1-3 cm;

[0048] S2, the broken raw materials fall into the sterilization conveyor 11 in the sterilization room 1 through the feed port 10, and the plant fragments are conveyed downward in a serpentine shape by the sterilization conveyor 11. During the process, the ultraviolet sterilization lamp 13 continuously irradiates the plant fragments for sterilization. The ultraviolet wavelength is 253.7nm and the ultraviolet intensity is 30-100W / m 2 The exposure time is 20-30 minutes. During the process, the plant debris is continuously turned over by the rake teeth 15 and finally discharged from the sterilization room 1 through the discharge port 12 along the sterilization conveyor 11 at the bottom;

[0049] S3, the plant fragments first fall from the output end of the sterilization conveyor 11 onto the extension conveyor 16, and are evenly spread on both sides by the action of the two rotating spiral push blades 19 on the extension conveyor 16, and then fall into the strip enzymatic hydrolysis area 23 of the enzymatic hydrolysis tank 20. The push conveyor 21 pushes the plant fragments in the strip enzymatic hydrolysis area 23 to move slowly, so that the pile thickness of the plant fragments in the strip enzymatic hydrolysis area 23 is 30-40 cm. The pH value of the plant fragments at this time is manually detected, and then the acidic solution nozzle 29 or the alkaline solution nozzle 33 is used to spray the acidic solution or alkaline solution onto the surface of the plant fragments, and finally the pH value is adjusted to 4.5-5.5, and then the acidic solution or alkaline solution is evenly mixed with the plant fragments through the stirring module;

[0050] S4. Spray a mixed solution of cellulase, cellulase and pectinase onto the surface of the plant debris through the specific enzyme addition tube 24, and then mix the mixed solution with the plant debris through the stirring module. The addition amount is 0.5%-2.0% of the weight of the plant debris;

[0051] S5, the pusher conveyor 21 continues to slowly push the plant fragments in the strip-shaped enzymatic hydrolysis zone 23 during the enzymatic hydrolysis process. During the process, the aeration pump 45 fills air into the air heater 46 for heating, and finally discharges air from the aeration pipe 41 in the strip-shaped enzymatic hydrolysis zone 23 into the plant fragments, so that the temperature in the plant fragments is maintained at 40-55°C;

[0052] S6. After 3-4 days of enzymatic hydrolysis, the plant debris is discharged from the strip-shaped enzymatic hydrolysis zone 23 through the discharge port 47 and placed in a pile for decomposition at room temperature. The pile thickness is 20-25 cm and the decomposition time is 12-25 days.

[0053] It should also be noted that all “disposed” and similar descriptive words in this application (especially in the specification) express that there is or exists a connection relationship between two structures, but the specific means by which the two are connected are not too limited, and are generally conventional connection means, that is, it should be understood that the means are prior art and do not need to be elaborated on. For example, “n is disposed on m” simply expresses that structure n is present on structure m, and the two are specifically connected by welding, riveting, adhesive bonding or integral molding, which are all within the scope of protection of this application; for another example, “y is rotatably disposed on x” simply expresses that y and x can rotate relative to each other, and whether the two are connected by bearings, or y directly passes through x and is connected to x by rotation, or other feasible methods, are all within the scope of protection of this application.

[0054] The above description is only a description of the preferred embodiments of the present invention and does not limit the scope of the present invention. Any changes and modifications made by ordinary technicians in the field of the present invention based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A plant enzymatic sterilization organic fertilizer production equipment, comprising a sterilization room (1), characterized in that: A feeding conveyor (2) is horizontally arranged at the upper end of the sterilization room (1), a cutting table (3) is arranged at one end of the feeding conveyor (2), a cutting assembly is arranged on the cutting table (3), a feeding port (10) is opened at the upper end of the sterilization room (1) at the end of the cutting table (3) away from the feeding conveyor (2), a plurality of sterilization conveyors (11) distributed from top to bottom are horizontally arranged in the sterilization room (1), the sterilization conveyors (11) are staggeredly distributed left and right so that the materials can be conveyed downward in a serpentine shape, a discharge port (12) extending outward from the output end of the lowest sterilization conveyor (11) is arranged at the lower part of one side of the sterilization room (1), and an ultraviolet sterilization lamp (13) is arranged above each sterilization conveyor (11) in the sterilization room (1); An enzymolysis tank (20) with an upper opening is provided at the output end of the lowest sterilization conveyor (11), a push conveyor (21) is provided at the lower end of the enzymolysis tank (20), a plurality of dividing strips (22) arranged along the length direction of the sterilization conveyor (11) are provided in the enzymolysis tank (20), the dividing strips (22) divide the enzymolysis tank (20) into a plurality of strip enzymolysis areas (23), and a plurality of strip enzymolysis areas (23) are provided at one end of the enzymolysis tank (20) away from the sterilization room (1). A discharge port (47) is connected to each of the strip-shaped enzymolysis zones (23) in a one-to-one correspondence, and a specific enzyme addition pipe (24) is horizontally arranged above the enzymolysis tank (20) near the sterilization conveyor (11). The specific enzyme addition pipe (24) is connected to a specific enzyme nozzle (25) downward in each strip-shaped enzymolysis zone (23), and each specific enzyme nozzle (25) is provided with a first solenoid valve (26), and the lower end of each specific enzyme nozzle (25) is connected to a specific enzyme nozzle (27).

2. The plant enzymatic sterilization organic fertilizer production equipment according to claim 1, characterized in that: An acid solution adding pipe (28) is horizontally arranged above the enzymolysis tank (20) near the sterilization conveyor (11), and the acid solution adding pipe (28) is connected to an acid solution nozzle (29) downward in each strip enzymolysis zone (23), and each acid solution nozzle (29) is provided with a second solenoid valve (30), and the lower end of each acid solution nozzle (29) is connected to an acid solution nozzle (31). An alkaline solution addition pipe (32) is provided, and the alkaline solution addition pipe (32) is connected to an alkaline solution nozzle (33) downward in each strip-shaped enzymatic hydrolysis zone (23). A third solenoid valve (34) is provided on each alkaline solution nozzle (33), and the lower end of each alkaline solution nozzle (33) is connected to an alkaline solution nozzle (35). The acidic solution addition pipe (28) and the alkaline solution addition pipe (32) are both located on the side of the specific enzyme addition pipe (24) close to the sterilization room (1).

3. A plant enzymatic sterilization organic fertilizer production equipment according to claim 2, characterized in that, The enzymolysis tank (20) is provided with a plurality of stirring modules distributed along its length direction, and a stirring module is provided between the specific enzyme addition tube (24), the acidic solution addition tube (28) and the alkaline solution addition tube (32). Each stirring module includes a horizontal rotating shaft (36) that passes through each strip enzymolysis zone (23) horizontally, and a stirring drive motor (37) installed on the outside of the enzymolysis tank (20) and used to drive the horizontal rotating shaft (36) to rotate. Each horizontal rotating shaft (36) is connected to a plurality of horizontal stirring shafts (39) distributed in a circle through a connecting shaft (38) in each strip enzymolysis zone (23).

4. The plant enzymatic sterilization organic fertilizer production equipment according to claim 3, characterized in that: A plurality of air injection pipes (40) distributed along the length direction of the enzymolysis tank (20) are horizontally arranged above the specific enzyme addition pipe (24) away from the sterilization room (1), and each adjacent air injection pipe (40) is separated by the stirring module. The bottom of each strip-shaped enzymolysis zone (23) is provided with an aeration pipe (41) corresponding to the air injection pipe (40) along the length direction, and each aeration pipe (41) is connected to the corresponding air injection pipe (40) through a vertical air guide pipe. A plurality of aeration holes (42) distributed along the length direction of each aeration pipe (41) are opened on the lower side. An aeration pump (45) is provided on one side of the enzymolysis tank (20), and the outlet end of the aeration pump (45) is connected to an air heater (46). An electric heating wire is provided in the air heater (46), and one end of each air injection pipe (40) is connected to the outlet end of the air heater (46).

5. The plant enzymatic sterilization organic fertilizer production equipment according to claim 4, characterized in that: A connecting frame (43) is provided at the upper end of the enzymolysis tank (20), and each aeration pipe (41) is provided with a fixed connecting bar (44) connected to the connecting frame (43) upward.

6. The plant enzymatic sterilization organic fertilizer production equipment according to claim 1, characterized in that: The cutting table (3) is provided with ribs (4) on both sides perpendicular to the feed port (10), and the cutting assembly comprises two transverse cutting shafts (5) and a longitudinal cutting shaft (6) which are connected to the two ribs (4) in a transverse rotation manner. Two cutting drive motors (7) are installed outside the ribs (4) for driving the transverse cutting shaft (5) and the longitudinal cutting shaft (6) to rotate respectively. The transverse cutting shaft (5) is provided with a plurality of cutting discs (8) distributed along its length direction, and the periphery of the longitudinal cutting shaft (6) is provided with a plurality of cutting strips (9) arranged along its length direction and distributed in a circumferential manner. The cutting edges of each cutting disc (8) and each cutting strip (9) can contact the upper end of the cutting table (3).

7. The plant enzymatic sterilization organic fertilizer production equipment according to claim 1, characterized in that: In the sterilization room (1), a plurality of transverse connecting strips (14) are arranged transversely above each sterilization conveyor (11), and each transverse connecting strip (14) is provided downward with a plurality of rake teeth (15) distributed along its length direction and extending to the upper surface of the conveyor belt of the corresponding sterilization conveyor (11).

8. The plant enzymatic sterilization organic fertilizer production equipment according to claim 1, characterized in that: An extension conveyor (16) is arranged transversely at the output end of the lowest sterilization conveyor (11), and the width of the extension conveyor (16) is wider than that of the sterilization conveyor (11). The enzymolysis tank (20) is arranged on the side of the extension conveyor (16) away from the sterilization room (1) and below it. The upper end of the extension conveyor (16) is rotatably connected to an extension shaft (17) parallel to the enzymolysis tank (20). An extension drive motor (18) for driving the extension shaft (17) to rotate is installed on the outer side of the extension conveyor (16). The front and rear parts of the extension shaft (17) are both provided with spiral propulsion blades (19). The spiral directions of the front and rear spiral propulsion blades (19) on the extension shaft (17) are opposite, and a gap is left between the two spiral propulsion blades (19) and the conveyor belt of the extension conveyor (16).

9. A method for producing a plant enzymatic sterilization organic fertilizer, based on the plant enzymatic sterilization organic fertilizer production equipment according to any one of claims 4 to 8, characterized in that: The following steps are involved: S1, adding plant raw materials to the conveyor belt of the feed conveyor (2) through the feeding structure, conveying the raw materials to the cutting component through the feed conveyor (2), and cutting the plant raw materials into plant fragments of 1-3 cm through the cutting component; S2, the broken raw materials fall into the sterilization conveyor (11) in the sterilization room (1) through the feed port (10), and the plant broken materials are conveyed downward in a serpentine shape by the sterilization conveyor (11). During the process, the ultraviolet sterilization lamp (13) continuously irradiates the plant broken materials for sterilization, and finally the plant broken materials are discharged from the sterilization room (1) through the discharge port (12) along the lowest sterilization conveyor (11); S3, the plant fragments fall from the output end of the sterilization conveyor (11) into the strip enzymolysis zone (23) of the enzymolysis tank (20), the push conveyor (21) pushes the plant fragments in the strip enzymolysis zone (23) to move slowly, so that the pile thickness of the plant fragments in the strip enzymolysis zone (23) is 30-40 cm, the pH value of the plant fragments at this time is manually detected, and then the acidic solution or alkaline solution is sprayed on the surface of the plant fragments through the acidic solution nozzle (29) or the alkaline solution nozzle (33), and the pH value is finally adjusted to 4.5-5.5, and then the acidic solution or alkaline solution is evenly mixed with the plant fragments through the stirring module; S4, spraying a mixed solution of cellulase, cellulase and pectinase onto the surface of the plant debris through the specific enzyme addition tube (24), and then uniformly mixing the mixed solution with the plant debris through the stirring module, with the addition amount being 0.5%-2.0% of the weight of the plant debris; S5, the pushing conveyor (21) continues to slowly push the plant fragments in the strip-shaped enzymatic hydrolysis zone (23) during the enzymatic hydrolysis process, and the aeration pump (45) fills air into the air heater (46) for heating, and finally discharges air from the aeration pipe (41) in the strip-shaped enzymatic hydrolysis zone (23) into the plant fragments, so that the temperature in the plant fragments is maintained at 40-55°C; S6. After 3-4 days of enzymatic hydrolysis, the plant debris is discharged from the strip-shaped enzymatic hydrolysis zone (23) through the discharge port (47) and placed in a pile for decomposition at room temperature. The pile thickness is 20-25 cm and the decomposition time is 12-25 days.

10. The method for producing a plant enzymatic sterilization organic fertilizer according to claim 9, characterized in that: In step S2, the ultraviolet wavelength is 253.7 nm, the ultraviolet thickness is 30-100 W / m2, and the exposure time is 20-30 minutes.

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