Production process of ferment enzyme compound fertilizer

Abstract

The invention discloses a production process of a ferment enzyme compound fertilizer, and relates to the technical field of high efficiency and energy conservation, and the production process specifically comprises the following steps: mixing brown sugar and water according to a solid-to-liquid ratio of 1g: (15-25) mL to obtain brown sugar water, mixing mixed bacterial powder and water according to a solid-to-liquid ratio of 1g: (400-800) mL to obtain a mixed bacterial liquid, and mixing the mixed bacterial liquid with water according to a solid-to-liquid ratio of 1g: (400-800) mL to obtain the ferment enzyme compound fertilizer. The mixed bacterial powder is a mixture of 20-40 wt% of bacillus subtilis, 20-40 wt% of bacillus mucilaginosus and 30-50 wt% of aspergillus oryzae, according to the production process of the ferment enzyme compound fertilizer, through the arrangement of a quantitative precise injection system, an ultraviolet-assisted sterilization function and an intelligent fermentation tank, the effects of guaranteeing the smooth proceeding of the fermentation process and improving the quality of the fermented fertilizer can be achieved. The quantitative precise injection system adds components required by fermentation in an atomization form, so that the components can be uniformly distributed in the materials, local concentration abnormity is avoided, fermentation abnormity is reduced, and the quality consistency of the fermented fertilizer is guaranteed; the ultraviolet-assisted sterilization function effectively reduces interference of harmful microorganisms, and a pure growth environment is created for beneficial microorganisms such as bacillus subtilis.

Description

Technical Field

[0001] The present invention relates to the technical field of high efficiency and energy saving, and more specifically, to a production process of enzyme compound fertilizer. Background Art

[0002] In the modern agricultural production system, compound fertilizer, as a core input, refers to a fertilizer product that contains two or more nutrients among nitrogen, phosphorus and potassium. According to the theory of plant nutrition, it follows Liebig's law of minimum nutrient - the lack of any essential nutrient in the soil will directly restrict the upper limit of crop yield, and compound fertilizer achieves the coordinated supply of multiple nutrients through scientific proportions, effectively breaking through the limitation of single nutrients. Compared with single-element fertilizers, compound fertilizers have three major technical advantages: the total nutrient content is not less than 25%, the impurity content is controlled within 5%, and the particle uniformity is more than 90%. The use of compound fertilizers can increase the fertilizer utilization rate by 15%-20%, achieve an 8%-12% increase in crop yields, and significantly improve the quality of agricultural products. The protein content can be increased by 3%-5%;

[0003] Among them, Enzyme Compound Fertilizer, which combines bio-fermentation technology with diverse nutrition, offers significant advantages. It activates soil microbial activity through enzymatic reactions, accelerating nutrient decomposition and conversion, and improving fertilizer utilization. Its rich active enzymes improve soil aggregate structure, enhance water and fertilizer retention, and alleviate soil compaction and acidification. It also stimulates crop root growth, improves crop resistance, and reduces pest and disease occurrence. Its synergistic combination of organic and inorganic nutrients promotes more balanced crop growth, resulting in improved quality and increased yields. It is an ideal choice for green agricultural development that balances ecological and economic benefits.

[0004] In the compound fertilizer production process, the pulverization process during the raw material pretreatment stage is a critical step in determining product quality. For example, a compound fertilizer with application number 201810367925.8, a type of enzyme compound fertilizer, requires that organic raw materials such as chicken manure, rapeseed cake, and soybean meal be pulverized to ensure they pass an 80-mesh filter. This process requirement not only aligns with the positive correlation between the specific surface area of a material and the efficiency of microbial action, as established in solid-state fermentation theory—a 50% reduction in particle size can increase fermentation efficiency by 20%—but also lays the foundation for subsequent nutrient release.

[0005] However, the core technical bottleneck faced by the current mainstream tooth roller crushers (such as the equipment with patent numbers 201821200805.0 and 202321460630.8) is essentially due to the incompatibility between the fixed tooth roller structure and the characteristics of the chicken manure raw material. In large-scale farming scenarios, chickens actively ingest stones to assist gizzard digestion, metal debris produced by wear of breeding facilities (such as feed screen fragments, galvanized coating shedding, hardness HRB ≥ 60), and occasional mixed-in hard foreign matter such as bolts, resulting in rigid impurities in the chicken manure raw material accounting for as much as 5%-10%. The density of these impurities ranges from 2.5-7.8g / cm 3 , forming a sharp contrast in physical properties with the soft organic matter, becoming the core cause of equipment failure.

[0006] When stones or metal particles enter the fixed tooth roller crushing chamber along with chicken manure, they can easily wedge into the meshing gap between the two rigid tooth bodies. Since the tooth body and the roller shaft are rigidly connected by welding and lack an elastic buffer structure, the wedging effect generated by the hard particles during the relative rotation of the tooth rollers can trigger instantaneous impact loads that are 3-5 times greater than those under normal operating conditions. This impact energy is directly transmitted along the rigid tooth body to the connection between the tooth root and the roller body, causing severe stress concentration at the tooth root fillet. Under the action of high-frequency repetitive loads, the tooth surface wears rapidly, and fatigue cracks are the first to initiate in the tooth root transition zone. Welded structures are prone to fusion line cracking, and interference fits lead to connection failure due to micro-wear, ultimately causing serious failures such as tooth body shedding. Summary of the Invention

[0007] In view of the deficiencies in the prior art, the present invention provides a production process for enzyme compound fertilizer, which solves the problems raised in the above background technology.

[0008] The technical solutions of the present invention are as follows:

[0009] To achieve the above objectives, the present invention is implemented through the following technical solutions: A production process of enzyme compound fertilizer is prepared by the following method:

[0010] S1. Mix brown sugar and water at a solid-liquid ratio of 1 g: (15-25) mL to obtain brown sugar water;

[0011] S2, mixing the mixed bacterial powder and water at a solid-liquid ratio of 1g: (400-800) mL to obtain a mixed bacterial solution, wherein the mixed bacterial powder is a mixture of 20-40wt% Bacillus subtilis, 20-40wt% Bacillus mucilaginosus, and 30-50wt% Aspergillus oryzae;

[0012] S3, 20-30 parts of chicken manure, 15-25 parts of rapeseed cake, 15-25 parts of soybean meal, and 2-8 parts of Chinese medicinal components are crushed by a tooth roller crusher (1), passed through an 80-mesh sieve, and mixed evenly, and then 0.1-1 parts of fermentation promoter, 0.1-0.5 parts of cellulase, 1-3 parts of the mixed bacterial solution, and 30-50 parts of brown sugar water are sequentially sprayed onto the preliminarily mixed materials in an atomized form according to the set ratio through a quantitative precision spraying system. After the materials are added and mixed, the mixture is transferred to an intelligent fermentation tank. The tank is equipped with high-precision temperature and humidity sensors and pH sensors. Through the intelligent control system, according to the preset fermentation curve, the fermentation temperature is accurately controlled between 20-30°C, the humidity is maintained at 60%-70%, and the pH value changes are monitored in real time. When the pH value deviates from the appropriate range, the acid-base regulator is automatically added for correction. During the 5-10 days of fermentation, the intelligent stirring device starts once in the morning and evening every day according to the set program. Each stirring time is between 20-30 minutes to ensure that the material is fermented evenly and fully, and finally obtains fermented fertilizer;

[0013] S4. Evenly mix the fermentation fertilizer with 2-8 parts of urea, 2-8 parts of ammonium dihydrogen phosphate, 2-8 parts of potassium sulfate, and 1-3 parts of a synergist to obtain a compound fertilizer;

[0014] The tooth roller crusher is provided with multiple groups of crushing rollers capable of crushing chicken manure, and the outer peripheral surface of the crushing roller is evenly provided with multiple crushing teeth capable of moving axially and circumferentially.

[0015] Preferably, the crushing teeth are fixedly connected to a connecting rod on one side close to the crushing roller, one end of which is inserted into the crushing roller, and four telescopic parts are evenly arranged in the middle of the connecting rod, one end of which is slidably connected to the crushing roller.

[0016] Preferably, a plurality of movable grooves are evenly formed on the outer circumference of the crushing roller, and movable slide grooves are formed on the four inner sides of the movable grooves. The end of the telescopic component away from the connecting rod is slidably connected in the corresponding movable slide groove.

[0017] Preferably, the telescopic component includes a limit rod with one end fixedly connected to the connecting rod, the other end of the limit rod is slidably connected to the limit barrel, the end of the limit barrel away from the connecting rod is fixedly connected to a slider, the slider is slidably connected in a corresponding movable slide groove, the end of the slider close to the connecting rod is fixedly connected to a first spring, and the end of the first spring away from the slider is fixedly connected to the connecting rod, and the first spring is sleeved on the limit rod.

[0018] Preferably, the crushing teeth include an auxiliary mounting plate whose one side is fixedly connected to the corresponding connecting rod, the side of the auxiliary mounting plate close to the crushing roller is in contact with the outer peripheral surface of the crushing roller, and the side of the auxiliary mounting plate away from the crushing roller is provided with a rotatable auxiliary crushing head, and a plurality of crushing plates that can move toward the axis of the auxiliary crushing head are provided between the auxiliary crushing head and the auxiliary mounting plate, and adjacent crushing plates are in contact with each other.

[0019] Preferably, the side of the crushing plate close to the auxiliary crushing head axis is fixedly connected to a second spring, the side of the second spring away from the crushing plate is fixedly connected to the auxiliary crushing head, and the center of the crushing plate close to the auxiliary crushing head axis is fixedly connected to a resistance block.

[0020] Preferably, the crushing plate is fixedly connected to one side of the adjacent crushing plate with one end inserted into the corresponding crushing plate, and the crushing plate is also provided with a connecting groove adapted to the connecting plate on one side of the crushing plate.

[0021] Preferably, the auxiliary crushing head is rotatably connected to a limiting cylinder near the center of one side of the auxiliary mounting plate, and the limiting cylinder is fixedly connected in the auxiliary mounting plate.

[0022] Beneficial effects

[0023] The present invention provides a production process of enzyme compound fertilizer, which has the following beneficial effects:

[0024] 1. The production process of this enzyme compound fertilizer can achieve the effect of ensuring the smooth progress of the fermentation process and improving the quality of the fermented fertilizer through the setting of a quantitative and precise injection system, ultraviolet-assisted sterilization function and intelligent fermentation tank. The quantitative and precise injection system adds the ingredients required for fermentation in the form of atomization, which can make the ingredients evenly distributed in the material, avoid local concentration abnormalities, reduce fermentation abnormalities, and ensure the consistency of the quality of the fermented fertilizer; the ultraviolet-assisted sterilization function effectively reduces the interference of harmful microorganisms, creates a pure growth environment for beneficial microorganisms such as Bacillus subtilis, enables them to fully exert their fermentation effect, and increase the content of effective ingredients in the fermented fertilizer. The intelligent fermentation tank is equipped with high-precision sensors that can monitor temperature, humidity and pH values in real time, and accurately regulate according to the preset fermentation curve through an intelligent control system to ensure that the fermentation is always in the best conditions. Compared with traditional manual empirical fermentation, it greatly improves the fermentation success rate and reduces the risk of fermentation failure and labor costs caused by environmental fluctuations. At the same time, the intelligent stirring device stirs regularly to ensure that the material is fermented evenly and fully, and ultimately produces high-quality fermented fertilizer.

[0025] 2. This enzyme compound fertilizer production process utilizes a multi-stage adaptive protection structure within the toothed roller crusher, achieving efficient raw material crushing, equipment protection, and stable crushed particle size. The crushing teeth within the crusher are designed to move axially and circumferentially. Combined with the first spring in the telescopic component, the crushing teeth automatically retract when encountering hard foreign objects, relieving the impact load, reducing wear and the risk of tooth root fracture, and ensuring equipment reliability and service life. The crushing plates and second spring in the modular crushing tooth structure implement local adaptive avoidance, cushioning impact while ensuring continuous crushing of chicken manure, balancing protection and crushing efficiency. The linkage mechanism, consisting of connecting plates and connecting grooves, forms a "trapezoidal avoidance groove" when encountering large foreign objects, preventing mechanical wedging. The auxiliary crushing head and limiting cylinder cooperate to convert the torque generated by impact into a clearance adjustment motion, narrowing the avoidance gap and preventing uncrushed material from slipping through. This resolves the conflict between foreign object avoidance and precise crushing, achieving a synergistic optimization of protection and crushing efficiency, ensuring efficient crushing of raw materials such as chicken manure and a stable crushed particle size, providing high-quality raw materials for subsequent processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the tooth roller crusher of the present invention;

[0027] Figure 2 This is a schematic diagram of the cross-sectional structure of the crushing drum of the present invention when viewed from above;

[0028] Figure 3 This is a schematic diagram of the cross-sectional structure of the crushing roller of the present invention when viewed from the front;

[0029] Figure 4 For the present invention Figure 3 A schematic diagram of the structure enlarged in the middle;

[0030] Figure 5 This is a schematic diagram of a partial cross-sectional structure of a crushing roller of the present invention when viewed from above;

[0031] Figure 6 This is a schematic diagram of the coordination structure of the auxiliary crushing head, crushing plate and limiting cylinder of the present invention;

[0032] Figure 7 This is a schematic structural diagram of the auxiliary crushing head and crushing plate of the present invention;

[0033] Figure 8 It is a schematic diagram of the matching structure of adjacent crushing plates of the present invention.

[0034] In the figure: 1. Toothed roller crusher; 2. Crushing drum; 3. Crushing roller; 4. Auxiliary mounting plate; 5. Connecting rod; 6. Auxiliary crushing head; 7. Slider; 8. Limiting barrel; 9. Limiting rod; 10. First spring; 11. Moving groove; 12. Moving slide; 13. Crushing plate; 14. Second spring; 15. Connecting plate; 16. Connecting groove; 17. Limiting cylinder; 18. Resistance block. DETAILED DESCRIPTION

[0035] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0036] Example 1

[0037] In traditional toothed roller crusher technology, the teeth and rollers are often rigidly fixed together using welding or other methods. This structural design leads to inherent flaws in the equipment when facing complex operating conditions: when stones or metal particles with a diameter of 5-20 mm enter the crushing chamber, due to the lack of an elastic buffer mechanism, the hard foreign matter generates an impact load several times greater than that under normal operating conditions at the moment of tooth meshing. This impact energy is directly transmitted along the rigid teeth to the connection between the tooth root and the roller, causing severe stress concentration at the tooth root fillet, which can lead to tooth surface wear, root cracks, and even tooth shedding.

[0038] This technical bottleneck is particularly prominent in the production of compound fertilizer using chicken manure as raw material. During large-scale farming, the grit ingested by chickens, metal debris from the wear of farming equipment (such as screen fragments, galvanized coating peelings), and hard foreign matter accidentally mixed in, lead to a rigid impurity content of up to 5%-10% in the chicken manure raw material. These impurities have a density of 2.5-7.8g / cm 3 The hard particles and the soft organic matter form a distinct difference in physical properties. During the fixed tooth roller crushing process, not only the fatigue failure of the tooth body is accelerated, but also the crushed particle size is out of control, leading to a chain of problems such as decreased microbial activity in the subsequent fermentation process and increased wear of the fertilization machinery. This embodiment is specially invented to solve the above problems.

[0039] See also Figures 1 to 8 The present invention provides a technical solution: a production process of enzyme compound fertilizer, the production process comprising the following steps:

[0040] S1. Mix brown sugar and water at a solid-liquid ratio of 1 g: (15-25) mL to obtain brown sugar water;

[0041] S2, mixing the mixed bacterial powder and water at a solid-liquid ratio of 1g: (400-800) mL to obtain a mixed bacterial solution, wherein the mixed bacterial powder is a mixture of 20-40wt% Bacillus subtilis, 20-40wt% Bacillus mucilaginosus, and 30-50wt% Aspergillus oryzae;

[0042] S3, chicken manure 20-30 part (dried), rapeseed cake 15-25 part, soybean meal 15-25 part, Chinese medicine component 2-8 part are pulverized by tooth roller crusher 1 respectively, cross 80 mesh sieves, after mixing, with fermentation promoter 0.1-1 part, cellulase 0.1-0.5 part, mixed bacteria liquid 1-3 part, brown sugar water 30-50 part mix, 20-30 ℃ of fermentation 5-10 days, respectively stir once every day in the morning and evening, each churning time 20-30 minute, obtain fermentation fertilizer;

[0043] S4, mixing the fermentation fertilizer with 2-8 parts of urea, 2-8 parts of ammonium dihydrogen phosphate, 2-8 parts of potassium sulfate, and 1-3 parts of a synergist to obtain a compound fertilizer;

[0044] In step S3, 0.1-1 parts of fermentation promoter, 0.1-0.5 parts of cellulase, 1-3 parts of mixed bacterial solution, and 30-50 parts of brown sugar solution are sequentially sprayed onto the pre-mixed materials in atomized form according to the set ratio through a quantitative precision spraying system. Simultaneously, the intelligent mixing equipment activates a UV-assisted sterilization function to eliminate potentially harmful microorganisms on and within the materials during the mixing process, creating a more favorable microbial environment for subsequent fermentation.

[0045] After the materials are added and mixed, the mixture is transferred to an intelligent fermentation tank equipped with high-precision temperature and humidity sensors and a pH sensor. The intelligent control system precisely regulates the fermentation temperature between 20-30°C and maintains the humidity at 60%-70% according to the preset fermentation curve, while also monitoring pH changes in real time. When the pH value deviates from the appropriate range, an acid-base regulator is automatically added to correct it. During the 5-10 days of fermentation, the intelligent stirring device activates once a day, morning and evening, according to the programmed program, with each stirring lasting 20-30 minutes to ensure even and sufficient fermentation, ultimately producing fermented fertilizer.

[0046] The quantitative precision injection system adds the ingredients required for fermentation in the form of atomization, which can ensure that the ingredients are more evenly distributed in the material, avoid local concentrations that are too high or too low, reduce fermentation abnormalities caused by uneven addition, and improve the consistency of fermented fertilizer quality;

[0047] The ultraviolet-assisted sterilization function effectively reduces interference from harmful microorganisms, creating a purer growth environment for beneficial microorganisms such as Bacillus subtilis, Bacillus mucilaginosus, and Aspergillus oryzae in the mixed bacterial powder, enabling them to better exert their fermentation function and increase the content of effective ingredients in the fermented fertilizer;

[0048] Smart fermenters monitor temperature, humidity, and pH in real time and automatically adjust them to ensure optimal fermentation conditions. Compared to traditional methods that rely on manual experience and timed stirring, which lack precise control of environmental parameters, these intelligent fermenters significantly improve fermentation success rates, reduce fermentation failures and quality instability caused by environmental fluctuations, and reduce labor costs and intensity.

[0049] The precise injection system, intelligent fermentation tank and intelligent mixing equipment are all existing technologies and therefore will not be described in detail.

[0050] The tooth roller crusher 1 is provided with multiple groups of crushing rollers 3 capable of crushing chicken manure. The outer circumference of the crushing roller 3 is evenly provided with multiple crushing teeth capable of axial and circumferential movement.

[0051] Multiple sets of crushing rollers 3 are rotatably mounted within the crushing drum 2 via bearing assemblies, forming the core crushing unit. A screening device is positioned vertically at the bottom of the crushing drum 2 to grade the crushed material. A feed assembly is integrated into the top, ensuring continuous and stable material delivery. Given that the toothed roller crusher 1 is an established, mature device with a widely used basic mechanical structure and operating principles, this proposal focuses on its innovative improvements and will not elaborate on its conventional technical features.

[0052] See also Figures 3 to 5 The crushing teeth are fixedly connected to one side of the crushing roller 3 with one end of the connecting rod 5 inserted into the crushing roller 3. The middle of the connecting rod 5 is evenly provided with four telescopic parts with one end each of which is slidably connected to the crushing roller 3.

[0053] See also Figures 3 to 5 A plurality of movable grooves 11 are evenly opened on the outer circumference of the crushing roller 3, and movable slide grooves 12 are opened on the four inner sides of the movable grooves 11. The end of the telescopic component away from the connecting rod 5 is slidably connected in the corresponding movable slide groove 12.

[0054] The connecting rod 5 is inserted into the corresponding moving groove 11 , but the connecting rod 5 can move freely in the moving groove 11 .

[0055] See also Figures 3 to 5 The telescopic component includes a limiting rod 9 fixedly connected to the connecting rod 5 at one end, and the other end of the limiting rod 9 is slidably connected to the limiting barrel 8. The end of the limiting barrel 8 away from the connecting rod 5 is fixedly connected to the slider 7, and the slider 7 is slidably connected to the corresponding moving slide 12. The end of the slider 7 close to the connecting rod 5 is fixedly connected to the first spring 10, and the end of the first spring 10 away from the slider 7 is fixedly connected to the connecting rod 5. The first spring 10 is sleeved on the limiting rod 9;

[0056] When the crushing teeth are subjected to abnormal external forces generated by hard foreign objects such as stones or metal blocks, the connecting rod 5 will drive the limiting rod 9 to slide in the limiting barrel 8. During this process, the first spring 10 connected thereto will produce corresponding deformations according to the direction of the force - compression to store energy when squeezed, and stretching to store energy when pulled. Since the contact stress generated by soft materials such as chicken manure during the crushing process is much lower than the triggering threshold of the first spring 10, it will not cause spring deformation. When the abnormal external force disappears, the first spring 10, by virtue of its own elastic restoring force, drives the connecting rod 5 to reset the crushing teeth, so that they return precisely to their initial working position, ensuring the continuous and stable operation of the crushing system;

[0057] Once chicken manure enters the crushing drum 2 through the feed assembly, multiple sets of crushing rollers 3 operate in coordination to fully crush the material. If stones or metal fragments mixed with the manure become lodged between the teeth, the specially designed movable teeth automatically retreat to the sides using a pre-set elastic buffer mechanism during the rotation of the crushing rollers 3. This adaptive avoidance action instantly increases the distance between adjacent teeth, creating a smooth path for hard foreign matter to fall through, allowing it to quickly escape the crushing zone.

[0058] This innovative design achieves dual functions of crushing and protection: while continuously crushing the chicken manure material, the crushing teeth intelligently avoid impact loads caused by hard foreign matter. This active protection mechanism significantly reduces the wear rate of the crushing tooth surface and avoids the risk of tooth root fracture due to stress concentration. From a structural design perspective, this significantly improves the reliability and service life of the equipment in complex operating conditions.

[0059] Example 2

[0060] While the above-mentioned embodiment achieves the active avoidance function of the crushing teeth when encountering hard foreign objects, effectively protecting the equipment structure, the avoidance process inevitably causes the distance between adjacent crushing teeth to increase instantaneously. This dynamic change in the structure will cause some of the chicken manure to be crushed to fall through the gap between the teeth before it is fully crushed, causing problems such as uneven particle size of the material crushed and reduced crushing efficiency. Statistical data show that in order to overcome this technical bottleneck and achieve a balance between crushing efficiency and equipment protection, this embodiment proposes an optimization solution aimed at accurately controlling the avoidance gap to ensure that the quality of material crushing is not affected.

[0061] See also Figures 3 to 8, on the basis of the above embodiment, the technical solution adopted includes that the crushing teeth include an auxiliary mounting plate 4 fixedly connected to the corresponding connecting rod 5 on one side, the auxiliary mounting plate 4 is close to the crushing roller 3 and is attached to the outer peripheral surface of the crushing roller 3, and the auxiliary mounting plate 4 is away from the crushing roller 3. A rotatable auxiliary crushing head 6 is provided on the side, and a plurality of crushing plates 13 that can move toward the axis of the auxiliary crushing head 6 are provided between the auxiliary crushing head 6 and the auxiliary mounting plate 4, and adjacent crushing plates 13 are in contact with each other, and a second spring 14 is fixedly connected to the side of the crushing plate 13 close to the axis of the auxiliary crushing head 6, and the side of the second spring 14 away from the crushing plate 13 is fixedly connected to the auxiliary crushing head 6, and a resistance block 18 is fixedly connected to the center of the crushing plate 13 close to the axis of the auxiliary crushing head 6, wherein the second spring 14 is sleeved on the resistance block 18, but there is no contact between them;

[0062] The auxiliary crushing head 6, arrayed crushing plates 13, and auxiliary mounting plate 4 form a modular crushing tooth structure. When stones or metal particles impact a single crushing plate 13, that plate independently shifts radially toward the axis of the auxiliary crushing head 6, creating a localized escape zone. (Although this movement of the crushing plates 13 causes slight movement of adjacent plates 13, it has minimal impact on the overall crushing efficiency of the crushing teeth.) This locally adaptive escape mechanism effectively buffers impacts from hard foreign matter while ensuring that chicken manure material continues to pass through the non-avoidance zone for complete crushing, achieving an optimal balance between protection and crushing efficiency.

[0063] When encountering large foreign objects, as the avoidance stroke reaches its designed limit, the abutment block 18 on the back of the crushing plate 13 forms rigid contact with the auxiliary crushing head 6. Under the action of sustained impact loads, the abutment block 18 pushes the auxiliary crushing head 6 to retreat as a whole, achieving a two-stage progressive avoidance of the crushing teeth. This dual protection structure, through a graded response mechanism, significantly improves the equipment's adaptability to complex operating conditions while ensuring the safety of the crushing teeth structure, thereby enhancing the overall operational stability of the toothed roller crusher 1.

[0064] Example 3

[0065] Although the above-mentioned embodiment achieves graded and flexible avoidance of hard foreign matter through a modular crushing tooth structure, and achieves an effective balance between protection performance and crushing efficiency, there is still a significant risk of jamming when processing large-sized stones or metal particles. According to the principle of mechanical wedging of particles, when the equivalent diameter of hard particles is close to or exceeds 1.2-1.5 times the initial gap between adjacent crushing plates 13, and the sharpness of their edges or irregular contours are obvious, the edges of the particles are easily embedded in the gap between the crushing plates to form a mechanical wedging. This wedging effect will cause the particles to be "wedge-locked" between the teeth, which not only hinders the normal crushing process, but also causes periodic fatigue damage to the crushing plate connection structure due to stress concentration. In order to overcome this technical bottleneck, this embodiment proposes an anti-jamming optimization scheme based on dynamic gap adjustment, which aims to eliminate the wedging risk of large-sized foreign matter from the structural design level.

[0066] See also Figures 3 to 8 On the basis of the above embodiment, the technical solution adopted includes that a connecting plate 15 having one end inserted into the corresponding crushing plate 13 is fixedly connected to the side of the crushing plate 13 that abuts against the adjacent crushing plate 13, and a connecting groove 16 adapted to the connecting plate 15 is also provided on the side of the crushing plate 13 that abuts against the adjacent crushing plate 13;

[0067] The depth of the connecting groove 16 is greater than the length of the connecting plate 15, and the thickness of the connecting groove 16 is greater than the width of the connecting plate 15;

[0068] When a single crushing plate 13 is impacted by large-diameter stones or metal particles, during the process of initial displacement toward the axis of the auxiliary crushing head 6, when one side of the connecting plate 15 hits the inner side of the connecting groove 16 on the adjacent crushing plate 13, the impact force is converted into a lateral thrust, driving the adjacent crushing plates to synchronously produce coordinated displacement.

[0069] This linkage mechanism creates a "trapezoidal avoidance groove" between adjacent crushing plates, which is wider at the top and narrower at the bottom. This allows them to actively avoid large stones or metal particles, effectively preventing mechanical wedging. When the contact block 18 of the primary crushing plate 13 contacts the auxiliary crushing head 6, the plate 13 pushes the auxiliary crushing head 6 to move along with it, forcing the entire auxiliary crushing head 6 to retreat.

[0070] Example 4

[0071] In the above embodiment, the crushing plate 13 effectively avoids the risk of mechanical wedging by forming a "trapezoidal avoidance groove" that is wide at the top and narrow at the bottom when encountering large stones or metal particles. However, this avoidance mechanism significantly increases the gap between the crushing teeth, creating an escape path for uncrushed material, thereby affecting the particle size control accuracy and production continuity of the crushing process.

[0072] The essence of this technical contradiction lies in the inherent conflict between the gap expansion required to avoid foreign matter and the tooth spacing stability required for precise crushing. When the crushing plates 13 are impacted and displaced to form trapezoidal grooves, the expanded gap cannot effectively restrain the dry chicken manure particles, causing uncrushed material to easily slip through under the influence of gravity. This embodiment was invented to address this problem.

[0073] See also Figures 3 to 8 On the basis of the above embodiment, the technical solution adopted includes that the auxiliary crushing head 6 is rotatably connected to the center of the auxiliary mounting plate 4 on one side thereof, and the limiting cylinder 17 is fixedly connected to the auxiliary mounting plate 4;

[0074] The surface of the connection between the circumference of the limiting cylinder 17 and the auxiliary crushing head 6 is relatively rough, so that the auxiliary crushing head 6 can normally crush the chicken manure with the crushing plate 13, and the outer surface of the crushing plate 13 is also relatively rough;

[0075] According to rigid-body dynamics theory, when large-sized stones or metal particles come into asymmetrical contact with the crushing plate 13, the uneven distribution of particle angles results in a significant difference in the forces acting on the crushing plate's two ends. This imbalance in force causes the crushing plate 13 to experience not only radial compressive forces but also additional torque. Driven by this torque, the crushing head 6 generates rotational motion around its axis.

[0076] The rotation of the auxiliary crushing head 6 drives the crushing teeth to produce angular displacement, causing the spatial position of the "trapezoidal avoidance groove" that was originally wide at the top and narrow at the bottom to change. When the crushing teeth rotate at an angle, the difference in the upper edge gap of the "trapezoidal avoidance groove" on the two crushing teeth will decrease. This dynamic gap contraction effect effectively prevents the leakage of uncrushed chicken manure.

[0077] From an energy conversion perspective, the rotation of the auxiliary crushing head 6 achieves a secondary distribution of impact energy. Based on the functional principle, the total energy generated by particles impacting the crushing plate 13 is redistributed into radial displacement energy and rotational kinetic energy. This energy diversion mechanism significantly reduces the direct impact force of particles on the crushing plate. According to the stress-strain theory in material mechanics, reducing the maximum contact stress on the surface of the crushing plate 13 effectively extends its fatigue life.

[0078] This dynamic adjustment mechanism innovatively solves the contradiction between foreign body avoidance and precise crushing by converting the torque generated by impact into beneficial gap adjustment movement, and achieves the coordinated optimization of protection performance and crushing efficiency.

[0079] In summary, when the production process of the enzyme compound fertilizer is used, the quantitative precision injection system and ultraviolet assisted sterilization function are first used to ensure that the fermentation raw materials are evenly mixed and harmful microorganisms are effectively suppressed, laying a good foundation for the fermentation process. In the crushing process, the improved tooth roller crusher 1, with its multi-level adaptive protection structure, can effectively avoid damage to the equipment by hard foreign objects while efficiently crushing raw materials such as chicken manure, thereby ensuring the stability of the crushed particle size. The intelligent fermentation tank ensures a stable and sufficient fermentation process through real-time monitoring and precise control of parameters such as temperature, humidity, and pH value, combined with the dynamic adjustment of the intelligent stirring device, significantly improving the quality of the fermented fertilizer. In the subsequent mixing and granulation stage, the various nutrients are fully integrated with the fermented fertilizer, and finally an enzyme compound fertilizer with balanced nutrients, low impurity content, and stable physical properties is obtained. This process optimizes the entire process from raw material pretreatment to finished product output, which not only improves production efficiency and product quality, but also reduces equipment maintenance costs and the intensity of manual intervention, providing a reliable technical solution for the industrial production of enzyme compound fertilizers. The enzyme compound fertilizers produced can deeply improve the soil, continuously release long-term nutrients, and build a healthy ecological environment for crop growth. After application, it can significantly enhance the crop's resistance to lodging, drought and flooding, and disease and pest resistance, and reduce dependence on chemical pesticides. Its rich active enzymes can promote the efficient absorption of nutrients by crops, greatly increase the protein, sugar and other nutritional content of agricultural products, and produce sweeter fruits and vegetables and fuller grains, helping agriculture achieve green production increases and quality upgrades, and promoting the sustainable development of ecological agriculture to new heights.

[0080] It should be noted that in the description of the present invention, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. These are merely for ease of description and are not intended to indicate or imply that the device or component described must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0081] Furthermore, it should be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0082] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A production process of enzyme compound fertilizer, characterized in that: Prepared by the following method: S1. Mix brown sugar and water at a solid-liquid ratio of 1 g: (15-25) mL to obtain brown sugar water; S2, mixing the mixed bacterial powder and water at a solid-liquid ratio of 1g: (400-800) mL to obtain a mixed bacterial solution, wherein the mixed bacterial powder is a mixture of 20-40wt% Bacillus subtilis, 20-40wt% Bacillus mucilaginosus, and 30-50wt% Aspergillus oryzae; S3, 20-30 parts of chicken manure, 15-25 parts of rapeseed cake, 15-25 parts of soybean meal, and 2-8 parts of Chinese medicinal components are crushed by a tooth roller crusher (1), passed through an 80-mesh sieve, and mixed evenly, and then 0.1-1 parts of fermentation promoter, 0.1-0.5 parts of cellulase, 1-3 parts of the mixed bacterial solution, and 30-50 parts of brown sugar water are sequentially sprayed onto the preliminarily mixed materials in an atomized form according to the set ratio through a quantitative precision spraying system. After the materials are added and mixed, the mixture is transferred to an intelligent fermentation tank. The tank is equipped with high-precision temperature and humidity sensors and pH sensors. Through the intelligent control system, according to the preset fermentation curve, the fermentation temperature is accurately controlled between 20-30°C, the humidity is maintained at 60%-70%, and the pH value changes are monitored in real time. When the pH value deviates from the appropriate range, the acid-base regulator is automatically added for correction. During the 5-10 days of fermentation, the intelligent stirring device starts once in the morning and evening every day according to the set program. Each stirring time is between 20-30 minutes to ensure that the material is fermented evenly and fully, and finally obtains fermented fertilizer; S4. Evenly mix the fermentation fertilizer with 2-8 parts of urea, 2-8 parts of ammonium dihydrogen phosphate, 2-8 parts of potassium sulfate, and 1-3 parts of a synergist to obtain a compound fertilizer; The tooth roller crusher (1) is provided with a plurality of groups of crushing rollers (3) capable of crushing chicken manure, and the outer peripheral surface of the crushing roller (3) is evenly provided with a plurality of crushing teeth capable of axial and circumferential movement.

2. The production process of an enzyme compound fertilizer according to claim 1, characterized in that: A connecting rod (5) having one end inserted into the crushing roller (3) is fixedly connected to the side of the crushing tooth close to the crushing roller (3); and four telescopic components are evenly arranged in the middle of the connecting rod (5), each of which has one end slidably connected to the crushing roller (3).

3. The production process of an enzyme compound fertilizer according to claim 2, characterized in that: The outer peripheral surface of the crushing roller (3) is evenly provided with a plurality of movable grooves (11), and the four inner side surfaces of the movable grooves (11) are all provided with movable slide grooves (12), and the end of the telescopic component away from the connecting rod (5) is slidably connected in the corresponding movable slide groove (12).

4. The production process of an enzyme compound fertilizer according to claim 3, characterized in that: The telescopic component comprises a limiting rod (9) having one end fixedly connected to the connecting rod (5), the other end of the limiting rod (9) being slidably connected to a limiting barrel (8), the end of the limiting barrel (8) away from the connecting rod (5) being fixedly connected to a slider (7), the slider (7) being slidably connected in a corresponding movable slide groove (12), the end of the slider (7) close to the connecting rod (5) being fixedly connected to a first spring (10), and the end of the first spring (10) away from the slider (7) being fixedly connected to the connecting rod (5), and the first spring (10) being sleeved on the limiting rod (9).

5. The production process of an enzyme compound fertilizer according to claim 4, characterized in that: The crushing teeth include an auxiliary mounting plate (4) fixedly connected to a corresponding connecting rod (5) on one side, the auxiliary mounting plate (4) being close to the crushing roller (3) and being in contact with the outer peripheral surface of the crushing roller (3), and the auxiliary mounting plate (4) being away from the crushing roller (3) and being provided with a rotatable auxiliary crushing head (6), and a plurality of crushing plates (13) being movable toward the axis of the auxiliary crushing head (6) and being provided between the auxiliary crushing head (6) and the auxiliary mounting plate (4), and adjacent crushing plates (13) being in contact with each other.

6. The production process of an enzyme compound fertilizer according to claim 5, characterized in that: A second spring (14) is fixedly connected to the side of the crushing plate (13) close to the axis of the auxiliary crushing head (6); a side of the second spring (14) away from the crushing plate (13) is fixedly connected to the auxiliary crushing head (6); and a resistance block (18) is fixedly connected to the center of the side of the crushing plate (13) close to the axis of the auxiliary crushing head (6).

7. The production process of an enzyme compound fertilizer according to claim 6, characterized in that: The crushing plate (13) is fixedly connected to a connecting plate (15) on one side of the crushing plate (13) adjacent to the crushing plate (13), and one end of the connecting plate (15) is inserted into the corresponding crushing plate (13). The crushing plate (13) is also provided with a connecting groove (16) adapted to the connecting plate (15) on the side of the crushing plate (13) adjacent to the crushing plate (13).

8. The production process of an enzyme compound fertilizer according to claim 7, characterized in that: The auxiliary crushing head (6) is rotatably connected to a limiting cylinder (17) at the center of one side close to the auxiliary mounting plate (4), and the limiting cylinder (17) is fixedly connected in the auxiliary mounting plate (4).

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