A modular intelligent processing system for aquaculture waste-based organic fertilizer

Abstract

The present invention relates to the technical field of organic fertilizer processing, and in particular to a modular intelligent processing system for aquaculture waste-based organic fertilizer, comprising: a processing mechanism for converting aquaculture waste into organic fertilizer, comprising a mixer, a feed belt, and a turner; a detection mechanism for detecting the amount of mixed material attached to a mixing blade, an image of the mixed material falling after the mixing blade is raised, and the accumulation height of the organic fertilizer fine material at the feed inlet and discharge port of the feed belt; and a control mechanism for determining and adjusting the prestress at the root of the mixing blade based on the adhesion speed of the adhesion amount, or adjusting the swing amplitude of the angle of attack of the mixing blade based on the average particle size of the mixed material in the falling image, and adjusting the turning path of the turner and the emergency stop rate of the feed belt based on the change in the accumulation height of the organic fertilizer fine material in the accumulation image. The present invention improves the accuracy of organic fertilizer processing.

Description

Technical Field

[0001] The present invention relates to the technical field of organic fertilizer processing, and in particular to a modular intelligent processing system for aquaculture waste-based organic fertilizer. Background Art

[0002] In the existing technology, the processing process of organic fertilizer is to use a crusher to crush the waste to reduce its particle size, generally controlled to around 2-5 cm, to facilitate subsequent fermentation. At the same time, a conditioner and microbial inoculant are added in a certain proportion and thoroughly mixed in a blender. The conditioner can adjust the carbon-nitrogen ratio and air permeability of the material, while the microbial inoculant accelerates the fermentation process. The mixed material is transported to a fermentation tank. The tank is generally 1.5-2 meters deep, and the length depends on the site. The material is regularly turned by a turner to ensure that the material is fully exposed to air, providing sufficient oxygen for the microorganisms and promoting aerobic fermentation. The turning frequency is adjusted according to the temperature and material state.

[0003] Chinese Patent Publication No.: CN107162652A discloses an odorless livestock and poultry manure organic fertilizer and its preparation method and application, comprising the steps of uniformly mixing livestock and poultry manure and a biological fermentation agent at a mass ratio of 5000-10000:1 and fermenting the mixture, wherein the fermentation temperature is 18-22°C and the fermentation time is 6-8 days; the livestock and poultry manure is pre-treated with a chlorine-containing disinfectant at a concentration of 200-300ppm before being added to the biological fermentation agent. It can be seen that the odorless livestock and poultry manure organic fertilizer and its preparation method and application have the problems of increased stirring resistance due to an increase in attachments stacked on the wet blades inside the mixer caused by the humid environment, and a decrease in the amount of oxygen in the area below the blades inside the mixer caused by the increase in attachments and the stacking of debris, thereby causing an incomplete and insufficient fermentation reaction. Summary of the Invention

[0004] To this end, the present invention provides a modular intelligent processing system for aquaculture waste-based organic fertilizer, which is used to overcome the problems in the prior art of increased stirring resistance caused by increased attachments stacked on the wet blades inside the mixer due to the humid environment, and decreased oxygen content in the area below the blades inside the mixer due to the increased attachments and the stacking of debris, thereby overcoming incomplete and insufficient fermentation reactions.

[0005] To achieve the above objectives, the present invention provides a modular intelligent processing system for aquaculture waste-based organic fertilizer, comprising:

[0006] A processing mechanism for converting aquaculture waste base into organic fertilizer, comprising a mixer for stirring the aquaculture waste base to output a mixed material, a feeding belt arranged below the mixer for conveying the mixed material to a corresponding turning position, and a turning machine connected to the feeding belt for turning the mixed material to output fine organic fertilizer, wherein the mixer comprises a stirring barrel for carrying the mixed material and stirring blades for stirring the mixed material;

[0007] a detection mechanism connected to the processing mechanism, for obtaining the amount of mixed material attached to the stirring blade, an image of the mixed material falling after the stirring blade is raised, and the accumulation height of the organic fertilizer fine material at the inlet and outlet of the feeding belt;

[0008] A control mechanism is respectively connected to the processing mechanism and the detection mechanism, and is used to determine the prestress of the position of the stirring blade close to the vertical axis of the stirring barrel according to the adhesion speed of the adhesion amount, or to adjust the swing amplitude of the attack angle of the stirring blade according to the average particle size of a plurality of mixed crushed materials in the falling image, and to adjust the turning path of the turning machine and the emergency stop rate of the feeding belt according to the change in the stacking height of the organic fertilizer fine material.

[0009] Furthermore, the detection mechanism includes:

[0010] An ultrasonic detector is provided above the mixer to detect the amount of mixed material attached to the mixing blades;

[0011] a visual sensor, disposed below the ultrasonic detector, for collecting an image of the falling mixed material when the stirring blade is raised to a preset height;

[0012] a first rangefinder, which is arranged above the feeding port of the feeding belt, and is used to collect the accumulation height of the organic fertilizer fine material at the feeding port of the feeding belt and record it as a first height;

[0013] The second rangefinder is arranged above the feeding belt at a side away from the feeding port, and is used to collect the accumulation height of the organic fertilizer fine material at the feeding port of the feeding belt and record it as the second height.

[0014] Furthermore, the control mechanism is connected to the ultrasonic detector and the mixer respectively to obtain the amount of mixed debris attached, and according to the attachment speed of the mixed debris attached per unit stirring time being greater than or equal to a preset second speed, increases the prestress of the stirring blade close to the vertical axis of the stirring barrel before stirring.

[0015] The prefabrication stress is positively correlated with the attachment speed.

[0016] Furthermore, the attachment speed is the ratio of the difference between the amount of the mixed material attached at the end of the unit stirring time and the amount of the mixed material attached at the start of the unit stirring time to the unit stirring time.

[0017] Furthermore, the control mechanism is connected to the ultrasonic detector and the visual sensor respectively, and is used to obtain the falling image under the condition that the attachment speed is greater than or equal to the preset first speed and less than the preset second speed, and calculate the average particle size according to the particle sizes of several mixed crushed materials in the falling image. If the average particle size is greater than or equal to the preset particle size, the swing amplitude of the angle of attack of the stirring blade is increased.

[0018] The swing amplitude of the attack angle is positively correlated with the average particle size.

[0019] Furthermore, the average particle size is the ratio of the sum of the particle sizes of several mixed crushed materials in the falling image to the number of particle sizes in the falling image.

[0020] Furthermore, the control mechanism is respectively connected to the first rangefinder, the second rangefinder, the flipping machine and the feed belt, for respectively obtaining the first height and the second height and calculating the change amount. If the change amount is greater than or equal to a preset change amount, the flipping path is respectively adjusted from an upward straight flipping to a Z-shaped flipping and the emergency stop rate of the feed belt is increased.

[0021] The emergency stop rate is positively correlated with the change amount.

[0022] Furthermore, the change amount is the difference between the first height and the second height.

[0023] Furthermore, the attack angle of the stirring blade is an acute angle between the inclination direction of the stirring blade and the horizontal line.

[0024] Furthermore, the emergency stop rate is the ratio of the distance from the moment when the feeding belt starts to decelerate to the moment when the mixed crushed materials reach the discharge port to the emergency stop duration.

[0025] Compared with the prior art, the beneficial effect of the present invention is that the system of the present invention completes the mixing, fermentation and output of organic fertilizer of the aquaculture waste by setting a processing mechanism, a detection mechanism and a control mechanism. The crushing device can effectively reduce the particle size of the waste and improve the efficiency of subsequent processing. The stirring device ensures that the materials are mixed evenly, creating ideal conditions for the fermentation process. The fermentation device combines precise temperature control and humidity management to improve the conversion rate of organic fertilizer. When the attachments on the wet blades in the mixer increase with the increase of environmental moisture, the stirring effect decreases, and a low-oxygen environment is formed in the attachments, resulting in a decrease in the preparation effect. By adjusting the prefabricated stress of the blade root, the adhesion tendency of the material is suppressed, thereby reducing the amount of attachment of the crushed material on the blade, and by adjusting the swing amplitude of the angle of attack Then, the attachments on the blades are shaken off and vortices are generated to increase the oxygen transmission rate, thereby reducing the damage to the fragment structure caused by the anaerobic environment in the attachments; since the fragments output from the mixer are stacked together, the fragments stacked on top are continuously pressed down by gravity during the transmission process and the air humidity in the transmission environment is high, resulting in the lower layer of fragments being in an anaerobic environment, resulting in the lower layer of fragments that are anaerobically fermented sticking to each other during the turning process, thereby causing the turning effect to decrease. By adjusting the turning path of the turner and the emergency stop rate of the feed belt, the material throwing space is increased, the turning blind area during high-level stacking is reduced, and the height of the stacked fragments is reduced by emergency stopping, thereby reducing the pressure on the lower layer of stacked fragments, and the contact area between the fragments and oxygen is increased, thereby achieving improved accuracy and efficiency in organic fertilizer processing.

[0026] Furthermore, the system of the present invention is equipped with an ultrasonic detector, a visual sensor, a first rangefinder and a second rangefinder. The ultrasonic detector is installed above the mixer. By accurately measuring the changing trend of the adhesion amount, the material adhesion phenomenon caused by factors such as environmental humidity is discovered. The non-contact detection method not only improves the accuracy of data collection, but also avoids the problem that traditional mechanical sensors may fail due to material contamination; by using the first rangefinder and the second rangefinder to monitor the stacking height of the organic fertilizer fine material in real time, the material distribution during the transmission process is ensured to be uniform, and the anaerobic environment problem caused by excessive stacking is avoided, thereby achieving an improvement in the organic fertilizer processing effect.

[0027] Furthermore, the system of the present invention increases the prestress at the root of the stirring blade before stirring. Due to the high humidity of the stirring environment or the stickiness of the aquaculture waste, it is easy to adhere to the surface of the blade, gradually forming lumps, resulting in a decrease in stirring efficiency or even equipment jamming. The rigid deformation of the blade root is adjusted by prestressing, so that the blade produces tiny high-frequency vibrations during rotation, destroying the adhesion between the material and the blade surface, and achieving the self-cleaning effect of the blade through vibration. The stress is positively correlated with the speed, realizing energy-saving operation at low adhesion and intelligent adjustment of strong anti-sticking at high adhesion, thereby achieving improved stirring uniformity.

[0028] Furthermore, the system of the present invention increases the swing amplitude of the stirring blade's angle of attack. Because materials may be difficult to mix completely and evenly during the stirring process due to excessively large particle size or high viscosity, this can lead to the accumulation of deposits and the formation of an oxygen-free environment, affecting the preparation effect. By adjusting the swing amplitude of the stirring blade's angle of attack, the blade can periodically change its angle during rotation, thereby applying different shear forces and vortex effects to the material, effectively reducing material accumulation on the blade and promoting oxygen transmission into the material, thereby achieving improved stirring uniformity.

[0029] Furthermore, the system of the present invention adjusts the turning path from an upward straight turning to a Z-shaped turning. Since the material is easily stacked too high during transportation, resulting in the lower layer of crushed materials being in an oxygen-free environment, which affects the fermentation effect, by adjusting the turning path of the turning machine to a Z-shape, the material throwing range and spatial distribution can be significantly increased, avoiding the turning blind area caused by high-level accumulation, and at the same time extending the exposure time of the material in the air, ensuring that oxygen can fully penetrate into the crushed materials, thereby improving the fermentation conditions and being able to adapt to the needs of different changes, further improving the quality and efficiency of organic fertilizer processing.

[0030] Furthermore, the system of the present invention increases the emergency stop rate of the feeding belt. Since the materials may be stacked too densely due to gravity during the transmission process, the lower layer of crushed materials may be subjected to excessive pressure to form an anaerobic environment, which affects the fermentation effect. By increasing the emergency stop rate of the feeding belt, the materials can be slowed down or stopped in time before reaching the discharge port, reducing the stacking height and reducing the pressure on the lower layer of crushed materials. At the same time, the inertia generated by the emergency stop can redisperse the materials and increase the contact area with oxygen, thereby improving the quality of organic fertilizer processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the overall structure of a modular intelligent processing system for aquaculture waste-based organic fertilizer according to an embodiment of the present invention;

[0032] Figure 2 This is an overall structural diagram of a modular intelligent processing system for aquaculture waste-based organic fertilizer according to an embodiment of the present invention;

[0033] Figure 3 This is a structural block diagram of the detection mechanism and control mechanism of the modular intelligent processing system for aquaculture waste-based organic fertilizer according to an embodiment of the present invention;

[0034] Description of the accompanying figures: 1-visual sensor, 2-stirring blade, 3-driving screw, 4-ultrasonic detector, 5-stirring barrel, 6-first distance meter, 7-feeding belt, 8-second distance meter, 9-turning machine. DETAILED DESCRIPTION

[0035] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are merely used to explain the present invention and are not intended to limit the present invention.

[0036] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0037] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside", and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0038] 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.

[0039] See also Figure 1 、 Figure 2 、 Figure 3 The figures show the overall structure of the modular intelligent processing system for organic fertilizer based on livestock waste according to the embodiment of the present invention, the overall structure block diagram, and the structure block diagram of the detection mechanism and the control mechanism.

[0040] A processing mechanism for converting aquaculture waste base into organic fertilizer, comprising a mixer for stirring the aquaculture waste base to output a mixed material, a feed belt 7 disposed below the mixer for conveying the mixed material to a corresponding turning position, and a turner 9 connected to the feed belt 7 for turning the mixed material to output fine organic fertilizer, wherein the mixer comprises a stirring barrel 5 for carrying the mixed material and a plurality of stirring blades 2 for stirring the mixed material;

[0041] a detection mechanism connected to the processing mechanism, for obtaining the amount of mixed material attached to the stirring blade 2, an image of the mixed material falling after the stirring blade 2 is raised, and the accumulation height of the organic fertilizer fine material at the inlet and outlet of the feeding belt 7;

[0042] A control mechanism is respectively connected to the processing mechanism and the detection mechanism, and is used to determine the prestress of the positions of several mixing blades 2 close to the vertical axis of the mixing barrel 5 according to the adhesion speed of the adhesion amount, or to adjust the swing amplitude of the attack angle of the mixing blade 2 according to the average particle size of several mixed crushed materials in the falling image, and to adjust the turning path of the turning machine 9 and the emergency stop rate of the feeding belt 7 according to the change in the stacking height of the organic fertilizer fine material.

[0043] Specifically, livestock waste includes farm manure and straw fragments.

[0044] Specifically, the mixer further includes a lifting rod connected to the mixing blade 2 , and the vertical axis of the lifting rod coincides with the vertical axis of the mixing barrel 5 .

[0045] Specifically, a feeding motor is provided inside the feeding belt 7 to drive the feeding belt 7 to move.

[0046] Specifically, the mixer further includes a rotating telescopic rod connected to the mixing blade 2 for adjusting the height of the mixing blade 2 .

[0047] In practice, the system of the present invention completes the mixing, fermentation and output of organic fertilizer of aquaculture waste by setting up a processing mechanism, a detection mechanism and a control mechanism. The crushing device can effectively reduce the size of waste particles and improve the efficiency of subsequent processing. The stirring device ensures that the materials are mixed evenly, creating ideal conditions for the fermentation process. The fermentation device combines precise temperature control and humidity management to improve the conversion rate of organic fertilizer. When the attachments on the wet blades in the mixer increase with the increase of environmental moisture, the stirring effect decreases, and a low-oxygen environment is formed in the attachments, resulting in a decrease in the preparation effect. By adjusting the prestress of the blade root, the material adhesion tendency is suppressed, thereby reducing the amount of crushed material attached to the blade, and the angle of attack is adjusted to swing the amplitude of the attachments on the blade. The objects are shaken off and vortexes are generated to increase the oxygen transmission rate, thereby reducing the damage to the fragment structure caused by the anaerobic environment in the attachments; since the fragments output from the mixer are stacked together, the fragments stacked on top are continuously pressed down by gravity during the transmission process and the air humidity in the transmission environment is high, resulting in the lower layer of fragments being in an anaerobic environment, resulting in the lower layer of fragments that are anaerobically fermented sticking to each other during the turning process, thereby causing the turning effect to decrease. By adjusting the turning path of the turner 9 and the emergency stop rate of the feed belt 7, the material throwing space is increased, the turning blind area during high-level stacking is reduced, and the height of the stacked fragments is reduced by emergency stopping, thereby reducing the pressure on the lower layer of stacked fragments, and the increase in the contact area between the fragments and oxygen is achieved, thereby achieving improved accuracy and efficiency in organic fertilizer processing.

[0048] Specifically, the detection mechanism includes:

[0049] An ultrasonic detector 4 is provided above the mixer to detect the amount of mixed material attached to the mixing blade 2;

[0050] A visual sensor 1 is provided below the ultrasonic detector 4 and is used to capture an image of the falling mixed material when the mixing blade 2 is raised to a preset height;

[0051] a first rangefinder 6, which is arranged above the feeding port of the feeding belt 7, and is used to collect the accumulation height of the organic fertilizer fine material at the feeding port of the feeding belt 7 and record it as a first height;

[0052] The second distance meter 8 is arranged above the feeding belt 7 on the side away from the feeding port, and is used to collect the accumulation height of the organic fertilizer fine material at the feeding port of the feeding belt 7 and record it as the second height.

[0053] Specifically, the first rangefinder 6 and the second rangefinder 8 may be implemented by infrared rangefinders and ultrasonic rangefinders.

[0054] During implementation, the system of the present invention is equipped with an ultrasonic detector 4, a visual sensor 1, a first rangefinder 6 and a second rangefinder 8. The ultrasonic detector 4 is installed above the mixer. By accurately measuring the changing trend of the adhesion amount, the material adhesion phenomenon caused by factors such as environmental humidity is discovered. The non-contact detection method not only improves the accuracy of data collection, but also avoids the problem that traditional mechanical sensors may fail due to material contamination; by using the first rangefinder 6 and the second rangefinder 8 to monitor the stacking height of the organic fertilizer fine material in real time, it is ensured that the material is evenly distributed during the transmission process, and the anaerobic environment problem caused by excessive stacking is avoided, thereby achieving an improvement in the organic fertilizer processing effect.

[0055] Specifically, the control mechanism is connected to the ultrasonic detector 4 and the mixer, respectively, to obtain the amount of mixed material attached, and according to the attachment speed of the mixed material attached per unit stirring time being greater than or equal to a preset second speed, increase the prestress of the position of the stirring blade 2 close to the vertical axis of the stirring barrel 5 before stirring.

[0056] The prefabrication stress is positively correlated with the attachment speed.

[0057] Specifically, the attachment speed is the ratio of the difference between the amount of the mixed material attached at the end of the unit stirring time and the amount of the mixed material attached at the start of the unit stirring time to the unit stirring time.

[0058] Specifically, the prefabricated stress is the internal stress applied to the position of the mixing blade 2 close to the vertical axis of the mixing barrel 5 before stirring. Examples of the method of applying the prefabricated stress include pre-bending or twisting the blade, heating the position of the mixing blade 2 close to the vertical axis of the mixing barrel 5, and interference fit between the blade and the lifting rod. The preferred embodiment is heating by an electric heater in the telescopic rod.

[0059] Specifically, the range unit stirring time is 1 minute.

[0060] Specifically, under the conditions that the bottom radius and barrel height of the mixing barrel 5 are 0.5m and 0.7m respectively, the stirring temperature is 24°C, the total surface area of ​​the stirring blade 2 is 2.1m² and the rotation rate of the stirring blade 2 is 50rpm, the general value range of the preset first speed is [0.006m² / s, 0.02m² / s], the general value range of the preset second speed is [0.4m² / s, 0.8m² / s], the preferred embodiment of the preset first speed is 0.01m² / s, and the preferred embodiment of the preset second speed is 0.5m² / s.

[0061] Those skilled in the art will appreciate that the optional range of the preset first speed and the preset second speed provided in this embodiment and the preferred embodiment are the values ​​selected under the conditions that the bottom radius and barrel height of the mixing barrel 5 are 0.5 m and 0.7 m respectively, the stirring temperature is 24°C, the total surface area of ​​the mixing blade 2 is 2.1 m² and the rotation rate of the mixing blade 2 is 50 rpm, which are the best values ​​for the technical problem solved by the technical solution of the present invention. In actual applications or experiments, those skilled in the art can adaptively adjust the first speed and the preset second speed according to the actual application environment and application scenario.

[0062] In practice, the corresponding relationship between the attachment speed and the heating temperature of the prefabricated stress is that the heating temperature increases by 1°C for every 0.1m² / s increase in the difference between the attachment speed and the preset second speed. If the difference between the attachment speed and the preset second speed is within 0.1m² / s, the heating temperature increases by 3°C. For example, if the difference between the attachment speed and the preset second speed is 0.3m² / s, and heating is not currently being performed, and the temperature of the telescopic rod is room temperature 24°C, then the heating temperature is 24°C + 3°C + 1°C × 2 = 29°C.

[0063] During implementation, the system of the present invention increases the prestress at the root of the stirring blade 2 before stirring. Due to the high humidity of the stirring environment or the stickiness of the aquaculture waste, it is easy to adhere to the surface of the blade, gradually forming lumps, resulting in a decrease in stirring efficiency or even equipment jamming. The rigid deformation of the blade root is adjusted by prestressing the rigid deformation, so that the blade produces tiny high-frequency vibrations when rotating, destroying the adhesion between the material and the blade surface, and achieving the self-cleaning effect of the blade through vibration. The stress is positively correlated with the speed, realizing energy-saving operation at low adhesion and strong anti-sticking intelligent adjustment at high adhesion, thereby achieving improved stirring uniformity.

[0064] Specifically, the control mechanism is connected to the ultrasonic detector 4 and the visual sensor 1, respectively, to obtain the falling image under the condition that the attachment speed is greater than or equal to the preset first speed and less than the preset second speed, and calculate the average particle size according to the particle sizes of several mixed crushed materials in the falling image. If the average particle size is greater than or equal to the preset particle size, the swing amplitude of the angle of attack of the stirring blade 2 is increased.

[0065] The swing amplitude of the attack angle is positively correlated with the average particle size.

[0066] Specifically, the average particle size is the ratio of the sum of the particle sizes of a plurality of mixed crushed materials in the falling image to the number of particle sizes in the falling image.

[0067] Specifically, the falling image is collected at a time when the stirring blade 2 is raised to a position 0.2 m above the height of the visual sensor 1 .

[0068] Specifically, the angle of attack swing amplitude is the absolute value of the difference between the minimum angle and the maximum angle of one angle of attack swing.

[0069] Specifically, the swing amplitude of the attack angle of the stirring blade 2 is adjusted by the linkage of a plurality of drive screws 3 correspondingly connected to the stirring blade 2 and a drive motor. The drive motor rotates and transmits the rotational torque to the drive screw 3, and the drive screw 3 transmits the rotational torque to the stirring blade 2.

[0070] The number of driving screws 3 is equal to the number of stirring blades 2;

[0071] Several stirring blades 2 simultaneously perform angle-of-attack oscillation.

[0072] Specifically, under the conditions that the bottom radius and barrel height of the stirring barrel 5 are 0.5m and 0.7m respectively, the stirring temperature is 24°C, the total surface area of ​​the stirring blade 2 is 2.1m² and the rotation rate of the stirring blade 2 is 50rpm, the general value range of the preset particle size is [3mm, 8mm], and the preferred embodiment of the preset particle size is 6mm.

[0073] Those skilled in the art will understand that the optional range of the preset particle size provided in this embodiment and the preferred embodiment are the values ​​selected under the conditions that the bottom radius and barrel height of the stirring barrel 5 are 0.5m and 0.7m respectively, the stirring temperature is 24°C, the total surface area of ​​the stirring blade 2 is 2.1m² and the rotation rate of the stirring blade 2 is 50rpm, which are the best values ​​for the technical problem solved by the technical solution of the present invention. In actual applications or experiments, those skilled in the art can adaptively adjust the preset particle size according to the actual application environment and application scenario.

[0074] In practice, if the difference between the average particle size and the preset particle size is within 1 mm, the swing amplitude of the angle of attack is increased to 0.2 degrees. If the difference is between 1 mm and 2 mm, the swing amplitude of the angle of attack is increased to 0.4 degrees. If the difference is between 2 mm and 3 mm, the swing amplitude of the angle of attack is increased to 0.8 degrees. And so on. The adjustment range of the swing amplitude of the angle of attack is limited to between 0 and 10 degrees. For example, if the difference between the average particle size and the preset particle size is 4 mm, the swing amplitude of the angle of attack is increased to 1.6 degrees.

[0075] In practice, the system of the present invention increases the swing amplitude of the angle of attack of the stirring blade 2. Since the material may be difficult to completely mix evenly during the stirring process due to excessive particle size or high viscosity, it may cause the accumulation of attached materials and the formation of an oxygen-free environment, affecting the preparation effect. By adjusting the swing amplitude of the angle of attack of the stirring blade 2, the blade can periodically change its angle during rotation, thereby applying different shear forces and vortex effects to the material, effectively reducing the accumulation of material on the blade and promoting the transmission of oxygen into the material, thereby achieving improved stirring uniformity.

[0076] Specifically, the control mechanism is connected to the first rangefinder 6, the second rangefinder 8, the flipping machine 9 and the feed belt 7, respectively, to obtain the first height and the second height and calculate the change amount. If the change amount is greater than or equal to the preset change amount, the flipping path is adjusted from an upward straight flipping to a Z-shaped flipping and the emergency stop rate of the feed belt 7 is increased.

[0077] The emergency stop rate is positively correlated with the change amount.

[0078] Specifically, under the conditions that the feeding belt 7 is 5m long, 1.2m wide, and the working power of the feeding motor is 3kW, the general value range of the preset change amount is [10mm, 50mm], and the preferred embodiment of the preset change amount is 15mm.

[0079] Those skilled in the art can understand that the optional range of the preset change amount provided in this embodiment and the preferred embodiment are the values ​​selected under the conditions that the feeding belt 7 is 5m long, 1.2m wide, and the working power of the feeding motor is 3kW, which are the best values ​​for the technical problems solved by the technical solution of the present invention. In actual applications or experiments, those skilled in the art can adaptively adjust the preset change amount according to the actual application environment and application scenarios.

[0080] In implementation, if the difference between the change amount and the preset change amount is within 1 mm, the emergency stop rate of the feed belt 7 is increased to 0.1 m / s; if the difference is between 1 mm and 2 mm, the emergency stop rate is increased to 0.2 m / s, and so on. The adjustment range of the emergency stop rate is limited to between 0 and 0.5 m / s. For example, when the difference between the change amount and the preset change amount is 3 mm, the emergency stop rate will increase to 0.3 m / s.

[0081] During implementation, the system of the present invention adjusts the turning path from an upward straight line turning to a Z-shaped turning. Since the material is easily stacked too high during transportation, resulting in the lower layer of crushed materials being in an oxygen-free environment, affecting the fermentation effect, by adjusting the turning path of the turning machine 9 to a Z-shape, the material throwing range and spatial distribution can be significantly increased, avoiding the turning blind area caused by high-level accumulation, and at the same time extending the exposure time of the material in the air, ensuring that oxygen can fully penetrate into the crushed materials, thereby improving the fermentation conditions and being able to adapt to the needs of different changes, further improving the quality and efficiency of organic fertilizer processing.

[0082] Specifically, the change amount is the difference between the first height and the second height.

[0083] Specifically, the attack angle of the stirring blade 2 is the acute angle between the tilt direction of the stirring blade 2 and the horizontal line.

[0084] Specifically, the emergency stop rate is the ratio of the distance from the moment the feeding belt starts to decelerate to the moment the mixed crushed materials reach the discharge port to the duration of the emergency stop.

[0085] Specifically, the emergency stop duration is the time interval between the start of deceleration and the moment the feed belt reaches the discharge port and stops.

[0086] During implementation, the system of the present invention increases the emergency stop rate of the feeding belt 7. Since the materials may be stacked too densely due to gravity during the transmission process, the lower layer of crushed materials are subjected to excessive pressure to form an anaerobic environment, which affects the fermentation effect. By increasing the emergency stop rate of the feeding belt 7, the materials can be decelerated or stopped in time before reaching the discharge port, reducing the stacking height and reducing the pressure on the lower layer of crushed materials. At the same time, the inertia generated by the emergency stop can redisperse the materials and increase the contact area with oxygen, thereby improving the quality of organic fertilizer processing.

[0087] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

Claims

1. A modular intelligent processing system for aquaculture waste-based organic fertilizer, characterized in that: include: A processing mechanism for converting aquaculture waste base into organic fertilizer, comprising a mixer for stirring the aquaculture waste base to output a mixed material, a feeding belt arranged below the mixer for conveying the mixed material to a corresponding turning position, and a turning machine connected to the feeding belt for turning the mixed material to output fine organic fertilizer, wherein the mixer comprises a stirring barrel for carrying the mixed material and a plurality of stirring blades for stirring the mixed material; a detection mechanism connected to the processing mechanism, for obtaining the amount of mixed material attached to the stirring blade, an image of the mixed material falling after the stirring blade is raised, and the accumulation height of the organic fertilizer fine material at the inlet and outlet of the feeding belt; a control mechanism, connected to the processing mechanism and the detection mechanism, respectively, for determining the prestress of the positions of the plurality of mixing blades close to the vertical axis of the mixing barrel according to the attachment speed of the attachment amount, or adjusting the swing amplitude of the attack angle of the mixing blades according to the average particle size of the plurality of mixed crushed materials in the falling image, and adjusting the turning path of the turning machine and the emergency stop rate of the feed belt according to the change in the stacking height of the organic fertilizer fine material; The attachment speed is the ratio of the difference between the amount of the mixed material attached at the end of the unit stirring time and the amount of the mixed material attached at the start of the unit stirring time to the unit stirring time; The pre-stress is the internal stress applied by the mixing blades near the vertical axis of the mixing barrel before mixing; The attack angle of the stirring blade is the acute angle between the inclination direction of the stirring blade and the horizontal line; The swing amplitude of the angle of attack is the absolute value of the difference between the minimum angle and the maximum angle of the angle of attack. The emergency stop rate is the ratio of the distance from the moment the feeding belt starts to decelerate to the moment the mixed crushed materials arrive at the discharge port to the duration of the emergency stop.

2. The modular intelligent processing system for aquaculture waste-based organic fertilizer according to claim 1, characterized in that: The detection mechanism includes: An ultrasonic detector is provided above the mixer to detect the amount of mixed material attached to the mixing blades; a visual sensor, disposed below the ultrasonic detector, for collecting an image of the falling mixed material when the stirring blade is raised to a preset height; a first rangefinder, which is arranged above the feeding port of the feeding belt, and is used to collect the accumulation height of the organic fertilizer fine material at the feeding port of the feeding belt and record it as a first height; The second rangefinder is arranged above the feeding belt at a side away from the feeding port, and is used to collect the accumulation height of the organic fertilizer fine material at the feeding port of the feeding belt and record it as the second height.

3. The modular intelligent processing system for aquaculture waste-based organic fertilizer according to claim 2, characterized in that: The control mechanism is connected to the ultrasonic detector and the mixer respectively, and is used to obtain the amount of mixed debris attached, and according to the attachment speed of the mixed debris attached per unit stirring time being greater than or equal to a preset second speed, increase the prestress of the positions of the stirring blades close to the vertical axis of the stirring barrel before stirring, The prefabrication stress is positively correlated with the attachment speed.

4. The modular intelligent processing system for aquaculture waste-based organic fertilizer according to claim 3, characterized in that: The control mechanism is connected to the ultrasonic detector and the visual sensor respectively, and is used to obtain the falling image under the condition that the attachment speed is greater than or equal to the preset first speed and less than the preset second speed, calculate the average particle size based on the particle sizes of several mixed crushed materials in the falling image, and increase the swing amplitude of the angle of attack of the stirring blade if the average particle size is greater than or equal to the preset particle size. The swing amplitude of the attack angle is positively correlated with the average particle size.

5. The modular intelligent processing system for aquaculture waste-based organic fertilizer according to claim 4, characterized in that: The average particle size is the ratio of the sum of the particle sizes of several mixed crushed materials in the falling image to the number of particle sizes in the falling image.

6. The modular intelligent processing system for aquaculture waste-based organic fertilizer according to claim 5, characterized in that: The control mechanism is connected to the first rangefinder, the second rangefinder, the flipping machine, and the feed belt, respectively, to obtain the first height and the second height and calculate the change amount. If the change amount is greater than or equal to a preset change amount, the flipping path is adjusted from an upward straight flipping to a Z-shaped flipping and the emergency stop rate of the feed belt is increased. The emergency stop rate is positively correlated with the change amount.

7. The modular intelligent processing system for aquaculture waste-based organic fertilizer according to claim 6, characterized in that: The change amount is the difference between the first height and the second height.

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