A method for preparing intelligent regulation water-soluble fertilizer

Abstract

This invention relates to the field of fertilizer preparation technology, and more particularly to a method for preparing intelligently regulated water-soluble fertilizer. The invention obtains livestock and poultry manure raw materials required for the water-soluble fertilizer components. It irradiates the surface of the pre-compressed livestock and poultry manure raw materials using a light source, filters characteristic raw material sub-regions based on the comparison of dark spots in each irradiated area, determines whether there are abnormal fiber contents in the livestock and poultry manure raw materials based on the distribution of these sub-regions, pre-treats the livestock and poultry manure raw materials, determines the effectiveness of the pre-treatment based on the comparison of specific surface areas, and adjusts the turning method for fermenting the crushed products. Organic components are extracted and mixed with the remaining components in the water-soluble fertilizer to concentrate and obtain the target water-soluble fertilizer. Thus, in the preparation process of water-soluble fertilizer, the subsequent preparation process can be adaptively regulated according to the different fiber contents of the raw materials, improving the extraction efficiency of organic components in the fertilizer raw materials.

Description

Technical Field

[0001] This invention relates to the field of fertilizer preparation technology, and in particular to a method for preparing an intelligently regulated water-soluble fertilizer. Background Technology

[0002] In modern agricultural production, the rational use of fertilizers is crucial for improving crop yield and quality. Water-soluble fertilizers play a vital role in agricultural production, offering advantages such as rapid dissolution, high absorption efficiency, and convenient use, quickly providing nutrients to crops. However, traditional water-soluble fertilizer preparation methods have many limitations, lacking precise control over the production process and effective regulatory means, which affects the extraction efficiency of organic components and makes it difficult to meet the demands of modern agriculture for refined and efficient development. With the rapid development of modern information technologies such as the Internet of Things, sensors, and intelligent control, introducing intelligent regulation technology into the preparation process of water-soluble fertilizers, and controlling the preparation process according to the adaptability of different fertilizer raw materials to improve the extraction efficiency of organic components, is a technical problem that urgently needs to be solved.

[0003] For example, Chinese Patent Publication No. CN117402020B discloses a method for preparing a bio-organic fertilizer that promotes crop growth. The method involves crushing sugarcane bagasse, adding it to water, adjusting the pH to 5-6, adding vitamin C, stirring evenly, and stirring at 50-60℃ for 5-15 hours to obtain a pre-mixed material. The pre-mixed material and a composting agent are then mixed evenly and composted until the temperature at the center of the compost pile reaches 50-55℃. This is followed by constant-temperature fermentation for 10-20 hours, adding distiller's grains and xylene phosphate powder, turning the pile, and continuing composting until fermentation is complete, yielding a fermented material. This fermented material is then aerated, algae are added, and it is cultured under sunlight for 2-5 days. Finally, EM bacteria and compound amino acids are added and stirred evenly to obtain the bio-organic fertilizer that promotes crop growth. This invention, targeting the compositional characteristics of sugarcane bagasse, utilizes the fermentation effect of a composting agent to transform sugarcane bagasse into high-quality organic fertilizer for return to the field, improving soil fertility, significantly increasing utilization rate and added value, while reducing environmental pollution.

[0004] The following problems still exist in the existing technology:

[0005] Existing technologies do not consider that the different fiber content of raw materials in water-soluble fertilizer components will affect the particle size uniformity of the crushed products, thereby affecting the full contact between organic components and extractants. In the preparation of water-soluble fertilizers, existing technologies cannot adaptively control the subsequent preparation process according to the different fiber content of raw materials, which affects the extraction efficiency of organic components in fertilizer raw materials. Summary of the Invention

[0006] Therefore, this invention provides a method for preparing intelligently regulated water-soluble fertilizer, which overcomes the problem that existing technologies cannot adaptively regulate the subsequent preparation process according to the different fiber contents of raw materials, thus affecting the extraction efficiency of organic components in fertilizer raw materials.

[0007] To achieve the above objectives, the present invention provides a method for preparing an intelligently regulated water-soluble fertilizer, comprising:

[0008] Livestock and poultry manure raw materials required to obtain water-soluble fertilizer components are pre-extruded;

[0009] The surface of the pre-compressed livestock and poultry manure raw material is irradiated with a light source of preset intensity, and the surface of the livestock and poultry manure raw material is divided into several irradiation areas. The fiber characterization parameters are determined based on the comparison of dark spots in each irradiation area, and the characteristic raw material sub-regions are screened based on the fiber characterization parameters.

[0010] Based on the distribution of the characteristic raw material sub-regions, it is determined whether there is an abnormal fiber content in the livestock and poultry manure raw material. In response to the presence of an abnormal fiber content, the livestock and poultry manure raw material is pretreated, and the number of pretreatment processes is determined based on the fiber characterization parameters corresponding to each characteristic raw material sub-region.

[0011] The livestock and poultry manure raw material is crushed to obtain crushed products. The specific surface area of ​​the crushed products corresponding to several preset monitoring times is obtained. The effectiveness of the pretreatment is determined based on the comparison of each specific surface area. The turning method for fermenting the crushed products is adjusted based on several specific surface areas.

[0012] Organic components are extracted from the crushed product after fermentation and mixed with the remaining components in the water-soluble fertilizer to concentrate and obtain the target water-soluble fertilizer.

[0013] Furthermore, the process of pre-compressing the livestock and poultry manure raw material includes,

[0014] Apply a compressive force perpendicular to the plane of the livestock and poultry manure raw material;

[0015] The height values ​​of several points on the surface of the livestock and poultry manure raw material in the direction perpendicular to the horizontal plane are acquired in real time, and the height fluctuation curve of the height values ​​of several points as a function of extrusion pressure is plotted.

[0016] Calculate the difference between the maximum and minimum values ​​of the height fluctuation curve;

[0017] If the difference does not exceed a preset difference threshold, then the pre-extrusion is determined to be complete.

[0018] Furthermore, the process of determining the fiber characterization parameters includes,

[0019] Acquire surface images of each irradiated area after irradiation;

[0020] The outline of the dark spot is determined based on the surface image;

[0021] The area of ​​the dark spot is determined based on the pixels of the dark spot outline;

[0022] Calculate the ratio of the dark spot area to the irradiated area area, and determine the ratio as the fiber characterization parameter.

[0023] Furthermore, the process of screening characteristic raw material sub-regions includes,

[0024] If the fiber characterization parameters of the irradiated area do not meet the normal porosity conditions, the irradiated area will be selected as a characteristic raw material sub-region.

[0025] The normal condition for the pores is that the fiber characterization parameters of the irradiated area do not exceed the preset fiber characterization reference values.

[0026] Furthermore, the process of determining the distribution of the characteristic raw material sub-regions includes,

[0027] Establish a rectangular coordinate system on the plane where the livestock and poultry manure raw materials are located, and obtain the position coordinates of the regional geometric center point of each characteristic raw material sub-region;

[0028] Calculate the distance between the geometric center points of adjacent characteristic material sub-regions;

[0029] The spacing variance is calculated based on the distance between the geometric center points of several regions, and the spacing variance is determined as the distribution coefficient of the characteristic raw material sub-region.

[0030] Further, determining whether the livestock and poultry manure raw material has abnormal fiber content includes,

[0031] If the distribution coefficient meets the fiber abnormality judgment condition, then it is determined that the livestock and poultry manure raw material has an abnormal fiber content.

[0032] The fiber anomaly determination condition is that the distribution coefficient exceeds a preset distribution coefficient threshold.

[0033] Furthermore, the pretreatment involves cutting the livestock and poultry manure raw material along a direction perpendicular to the plane in which the livestock and poultry manure raw material is located.

[0034] Further, determining the number of preprocessing steps includes obtaining fiber characterization parameters corresponding to each characteristic raw material sub-region, and determining the number of processing steps based on the maximum value of the fiber characterization parameters;

[0035] The number of treatments is positively correlated with the maximum value of the fiber characterization parameter, and the cutting interval between adjacent treatments is negatively correlated with the distribution coefficient.

[0036] Furthermore, the process of determining whether the preprocessing is effective includes,

[0037] The specific surface area variance is calculated based on the specific surface area of ​​the crushed products corresponding to several monitoring times, and the specific surface area variance is determined as the particle size difference value.

[0038] If the comparison of each specific surface area meets the normal conditions for particle size difference, the pretreatment is deemed effective, and the turning method for fermenting the crushed product is adjusted according to several specific surface areas.

[0039] If the comparison of each specific surface area does not meet the normal conditions for particle size difference, the preprocessing is deemed invalid and a warning signal is issued.

[0040] The normal condition for particle size difference is that the particle size difference value does not exceed a preset particle size difference reference value.

[0041] Furthermore, the process of adjusting the turning method includes,

[0042] Calculate the average specific surface area based on the specific surface area of ​​the crushed products at each monitoring time.

[0043] The turning frequency for fermenting the crushed products is adjusted according to the average specific surface area.

[0044] The turning frequency is negatively correlated with the average specific surface area.

[0045] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention obtains the livestock and poultry manure raw materials required for water-soluble fertilizer components, pre-extrudes the livestock and poultry manure raw materials, irradiates the surface of the pre-extruded livestock and poultry manure raw materials using a light source of preset intensity, divides the surface of the livestock and poultry manure raw materials into several irradiation areas, determines fiber characterization parameters based on the comparison of dark spots in each irradiation area, screens characteristic raw material sub-regions based on the fiber characterization parameters, determines whether there are abnormal fiber content phenomena in the livestock and poultry manure raw materials based on the distribution of characteristic raw material sub-regions, and, in response to the presence of abnormal fiber content phenomena, pre-treats the livestock and poultry manure raw materials according to each characteristic raw material sub-region... The corresponding fiber characterization parameters determine the number of pretreatment processes. Livestock and poultry manure raw materials are crushed to obtain crushed products. The specific surface area of ​​the crushed products at several preset monitoring times is obtained. The effectiveness of the pretreatment is determined based on the comparison of each specific surface area. The turning method for fermenting the crushed products is adjusted according to several specific surface areas. Organic components are extracted from the fermented crushed products and mixed and concentrated with the remaining components in the water-soluble fertilizer to obtain the target water-soluble fertilizer. Thus, in the preparation process of water-soluble fertilizer, the subsequent preparation process can be adaptively controlled according to the different fiber contents of the raw materials, thereby improving the extraction efficiency of organic components in fertilizer raw materials.

[0046] In particular, this invention utilizes a light source of preset intensity to irradiate the surface of pre-compressed livestock and poultry manure raw materials. Based on the comparison of dark spots in each irradiated area, fiber characterization parameters are determined. It is understood that different animals have different digestive abilities, resulting in varying fiber content in their manure. In livestock and poultry manure, fibers aggregate and intertwine, forming pores of various sizes and shapes. When light irradiates the surface of the manure raw material, due to the irregularity and complexity of the internal space of the pores, the light undergoes multiple reflections, scattering, and absorptions within the pores. Light within the pores is difficult to reflect as smoothly as on a flat surface; most of the light is absorbed by the pore walls or continuously scattered and lost within the pores, causing the pore areas to appear darker in the surface image, forming dark spots. This invention utilizes a light source of preset intensity to irradiate the surface of pre-compressed livestock and poultry manure raw materials and determines fiber characterization parameters based on the comparison of dark spots in each irradiated area. This enables rapid detection of the fiber content of livestock and poultry manure raw materials during the preparation of water-soluble fertilizers, improving the extraction efficiency of organic components from fertilizer raw materials.

[0047] In particular, this invention determines whether there is an abnormal fiber content in livestock and poultry manure raw materials based on the distribution of characteristic raw material sub-regions. It is understood that the fibers in livestock and poultry manure raw materials create pores, and the characteristic raw material sub-regions are irradiated areas with a high porosity. By calculating the length of the line connecting the geometric center points of adjacent characteristic raw material sub-regions several times, the spatial spacing information of the characteristic raw material sub-regions can be obtained. The smaller the variance of the length value, the smaller the distribution coefficient, the more stable the length value of the line connecting adjacent geometric center points of adjacent regions, and the more uniform the distribution of the characteristic raw material sub-regions in the livestock and poultry manure raw materials. Conversely, the larger the variance of the length value, the larger the distribution coefficient, and the greater the fluctuation in the length value of the line connecting adjacent geometric center points of adjacent regions, the more uneven the distribution of the characteristic raw material sub-regions in the livestock and poultry manure raw materials. This invention determines whether there is an abnormal fiber content in livestock and poultry manure raw materials by analyzing the distribution of characteristic raw material sub-regions, thereby quantifying the fiber distribution in the raw materials during the preparation of water-soluble fertilizers and improving the extraction efficiency of organic components in fertilizer raw materials.

[0048] In particular, this invention pre-treats livestock and poultry manure raw materials with abnormal fiber content. It is understood that when abnormal fiber content exists, the fiber distribution in the livestock and poultry manure raw material is uneven. Direct crushing in this case results in large chunks or long strips of material remaining in areas with high fiber content due to the high toughness and complex structure of the fibers. Conversely, areas with low fiber content are easily over-crushed, leading to uneven particle size of the crushed product and uneven microbial activity during fermentation, affecting the extraction of organic components and the final quality of the fertilizer. Pre-crushing cutting can break down large fiber clumps and long fiber bundles in high-fiber areas, reducing their size and loosening their structure. During the crushing process, the livestock and poultry manure raw material is subjected to uniform force, resulting in uniform particle size of the crushed product, improving the extraction of organic components and the final quality of the fertilizer. By pre-treating livestock and poultry manure raw materials with abnormal fiber content, this invention enables adaptive control of subsequent preparation processes based on the different fiber contents of the raw materials during the preparation of water-soluble fertilizers, thereby improving the extraction efficiency of organic components from fertilizer raw materials.

[0049] In particular, this invention determines the effectiveness of pretreatment based on the comparison of various specific surface areas. It is understood that acquiring the specific surface area of ​​the crushed products at several monitoring points and calculating its variance can intuitively reflect the dispersion of the specific surface area. There is an inverse relationship between the particle size and specific surface area of ​​the crushed products; the smaller the particle size, the larger the specific surface area. Therefore, the smaller the variance of the specific surface area, the smaller the particle size difference, the smaller the particle size difference of the crushed products, and the more uniform the crushed products obtained during the crushing process, indicating that the current pretreatment is effective. Conversely, the larger the variance of the specific surface area, the larger the particle size difference, the larger the particle size difference of the crushed products, and the more uneven the crushed products obtained during the crushing process, indicating that the current pretreatment is ineffective. This invention determines the effectiveness of pretreatment based on the comparison of various specific surface areas, thereby enabling adaptive control of the subsequent preparation process according to the different fiber contents of the raw materials during the preparation of water-soluble fertilizers, improving the extraction efficiency of organic components in fertilizer raw materials.

[0050] In particular, the present invention adjusts the turning method of crushed products for fermentation based on several specific surface areas. It is understood that the larger the average specific surface area of ​​the crushed products at several monitoring times, the larger the area of ​​the crushed products in contact with air. During fermentation, oxygen can be transferred to the material more quickly and fully, providing sufficient oxygen for the growth and metabolism of aerobic microorganisms, resulting in higher microbial activity and smoother fermentation. Furthermore, crushed products with a large specific surface area dissipate heat relatively easily, preventing excessively high local temperatures due to heat accumulation, which would affect microbial growth and fermentation. Therefore, a lower turning frequency is required. Excessive turning frequency increases labor costs and equipment wear and tear, and also interferes with the microbial environment during fermentation. The present invention's turning method for fermentation based on several specific surface areas allows for adaptive control of subsequent preparation processes according to the different fiber contents of raw materials during the preparation of water-soluble fertilizers, improving the extraction efficiency of organic components from fertilizer raw materials. Attached Figure Description

[0051] Figure 1 This is a flowchart illustrating the steps of a method for preparing an intelligent, regulated water-soluble fertilizer according to an embodiment of the present invention.

[0052] Figure 2 This is a flowchart illustrating the logic of screening characteristic raw material sub-regions according to an embodiment of the present invention.

[0053] Figure 3 This is a flowchart illustrating the logic of determining whether there is an abnormal fiber content in livestock and poultry manure raw materials according to an embodiment of the present invention.

[0054] Figure 4 This is a flowchart illustrating the logic for determining whether the current preprocessing is valid, as shown in this embodiment of the invention. Detailed Implementation

[0055] To make the objectives and advantages of the present invention clearer, the present invention will be further described below with reference to embodiments; it should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention.

[0056] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0057] It should be noted that in the description of this invention, the terms "upper," "lower," "inner," "outer," etc., which indicate the direction or positional relationship, are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and is not intended to indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this invention.

[0058] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0059] Please see Figure 1 The diagram shows a flowchart of the preparation method of the intelligent regulation-type water-soluble fertilizer according to an embodiment of the present invention. The preparation method of the intelligent regulation-type water-soluble fertilizer of the present invention includes:

[0060] Step S100: Obtain the livestock and poultry manure raw materials required for the water-soluble fertilizer components, and pre-extract the livestock and poultry manure raw materials;

[0061] Specifically, the present invention does not specify the method of pre-extrusion. Preferably, it can pre-extrude livestock and poultry manure raw materials through a hydraulic extruder, which is widely used in wood processing, food processing and other fields, and will not be elaborated here.

[0062] Step S200: Irradiate the surface of the pre-compressed livestock and poultry manure raw material with a light source of preset intensity, and divide the surface of the livestock and poultry manure raw material into several irradiation areas. Determine fiber characterization parameters based on the comparison of dark spots in each irradiation area, and screen characteristic raw material sub-regions based on the fiber characterization parameters.

[0063] Specifically, the method of irradiating the surface of livestock and poultry manure raw materials is not specifically limited in this invention. Preferably, it can be achieved by a parallel light source. The intensity of the parallel light source can be 1000 lux. The parallel light source is installed at a fixed height above the raw material. The parallel light source can provide uniform and directional light, so that the light intensity of each part of the surface of the livestock and poultry manure raw material is consistent, avoiding misjudgment of surface brightness and darkness due to uneven light angle or intensity. This will not be elaborated here.

[0064] Specifically, the size of the irradiation area can be set by those skilled in the art based on the specific size of the livestock and poultry manure raw material. Preferably, the size of the irradiation area can be 5cm×5cm, divided into 20 irradiation areas.

[0065] Step S300: Determine whether there is an abnormal fiber content in the livestock and poultry manure raw material based on the distribution of the characteristic raw material sub-regions. In response to the presence of an abnormal fiber content, pre-treat the livestock and poultry manure raw material and determine the number of pre-treatment processes based on the fiber characterization parameters corresponding to each characteristic raw material sub-region.

[0066] Step S400: The livestock and poultry manure raw material is crushed to obtain crushed products. The specific surface area of ​​the crushed products corresponding to several preset monitoring times is obtained. The effectiveness of the pretreatment is determined based on the comparison of each specific surface area. The turning method for fermenting the crushed products is adjusted based on several specific surface areas.

[0067] Specifically, the present invention does not specify the method of crushing livestock and poultry manure raw materials. Preferably, it can be achieved by a toothed roller crusher, which will not be elaborated here.

[0068] Specifically, the monitoring time can be set by those skilled in the art based on the precision requirements of the water-soluble fertilizer preparation process. The higher the precision requirements, the shorter the interval between monitoring times and the more monitoring times are set. Preferably, the monitoring time can be set with the start time of crushing as the monitoring starting point, with an interval of 1 minute, and 5 monitoring times are set.

[0069] Specifically, the present invention does not specifically limit the fermentation method of the crushed products. Preferably, it can be windrow fermentation, in which the crushed livestock and poultry manure is piled into windrows for fermentation. It is widely used in the field of fertilizer preparation, and will not be elaborated here.

[0070] Step S500: Extract organic components from the crushed product after fermentation, and mix and concentrate them with the remaining components in the water-soluble fertilizer to obtain the target water-soluble fertilizer.

[0071] Specifically, the remaining components in water-soluble fertilizers can be nutrients, acid-base regulating components, chelating agents, and adjuvants. Preferably, they can be potassium carbonate, calcium chloride, citric acid and its salts, sodium dodecylbenzene sulfonate, and organosilicon.

[0072] Specifically, the conventional process of extracting organic components and mixing and concentrating them with other components to prepare fertilizer will not be elaborated here.

[0073] Specifically, the process of pre-compressing the livestock and poultry manure raw material includes,

[0074] Apply a compressive force perpendicular to the plane of the livestock and poultry manure raw material;

[0075] The height values ​​of several points on the surface of the livestock and poultry manure raw material in the direction perpendicular to the horizontal plane are acquired in real time, and the height fluctuation curve of the height values ​​of several points as a function of extrusion pressure is plotted.

[0076] Calculate the difference between the maximum and minimum values ​​of the height fluctuation curve;

[0077] If the difference does not exceed a preset difference threshold, then the pre-extrusion is determined to be complete;

[0078] If the difference exceeds a preset difference threshold, it is determined that the pre-extrusion has not been completed;

[0079] Specifically, here is a concrete embodiment for determining whether pre-extrusion is complete. Before pre-extrusion, the height values ​​of each point are 23.4cm, 27.1cm, 26.4cm, 21.6cm, and 25.3cm. When the extrusion pressure is 40N, the height values ​​of each point are 22.6cm, 24.2cm, 24.4cm, 21.3cm, and 23.7cm. When the extrusion pressure is 50N, the height values ​​of each point are 21.3cm, 22.2cm, 22.1cm, 21.1cm, and 21.7cm. When the extrusion pressure is 60N, the height values ​​of each point are 19.7cm, 20.2cm, 20.1cm, 19.8cm, and 19.9cm. At this time, the difference between the maximum and minimum values ​​is 5mm, which does not exceed the preset difference threshold, and the pre-extrusion is determined to be complete.

[0080] Specifically, the preset difference threshold can be set by those skilled in the art based on the precision requirements of the water-soluble fertilizer preparation process. The higher the precision requirements, the smaller the preset difference threshold. Preferably, the difference threshold can be 5mm.

[0081] Specifically, the process of determining the fiber characterization parameters includes,

[0082] Acquire surface images of each irradiated area after irradiation;

[0083] The outline of the dark spot is determined based on the surface image;

[0084] The area of ​​the dark spot is determined based on the pixels of the dark spot outline;

[0085] Calculate the ratio of the dark spot area to the irradiated area area, and determine the ratio as the fiber characterization parameter.

[0086] Specifically, the present invention does not impose specific limitations on the method of obtaining fiber characterization parameters. Preferably, it can be achieved by using an industrial camera in conjunction with an image processor to convert the acquired color surface image into a grayscale image, obtain the contour of the dark spot through a contour algorithm, calculate the number of pixels in the dark spot region to obtain the dark spot area, and calculate the ratio of the dark spot area to the irradiated area. This will not be elaborated here.

[0087] Specifically, a concrete embodiment for determining fiber characterization parameters is given here. The dark spot areas of each region are obtained from the surface image as 2.2cm, 3.6cm, 1.8cm, 4.5cm, and 2.9cm, respectively. The irradiated area is a rectangular area of ​​5cm×5cm with an area of ​​25cm². The ratios of the dark spot area to the irradiated area are 0.088, 0.144, 0.072, 0.18, and 0.116, respectively. The fiber characterization parameters are 0.088, 0.144, 0.072, 0.18, and 0.116, respectively.

[0088] Specifically, this invention uses a light source of preset intensity to irradiate the surface of pre-compressed livestock and poultry manure raw materials. Fiber characterization parameters are determined based on the comparison of dark spots in each irradiated area. It is understood that different animals have different digestive abilities, resulting in varying fiber content in their manure. In livestock and poultry manure, fibers aggregate and intertwine, forming pores of various sizes and shapes. When light irradiates the surface of the manure raw materials, due to the irregularity and complexity of the internal space of the pores, the light undergoes multiple reflections, scattering, and absorptions within the pores. Light within the pores is difficult to reflect as smoothly as on a flat surface; most of the light is absorbed by the inner walls of the pores or continuously scattered and lost within the pores, resulting in a darker appearance in the surface image of the pore area, forming dark spots. This invention uses a light source of preset intensity to irradiate the surface of pre-compressed livestock and poultry manure raw materials and determines fiber characterization parameters based on the comparison of dark spots in each irradiated area. This enables rapid detection of the fiber content of livestock and poultry manure raw materials during the preparation of water-soluble fertilizers, improving the extraction efficiency of organic components from fertilizer raw materials.

[0089] Specifically, please refer to Figure 2 The diagram shown is a logical flowchart for screening characteristic raw material sub-regions according to an embodiment of the present invention. The process of screening characteristic raw material sub-regions includes:

[0090] If the fiber characterization parameters of the irradiated area do not meet the normal porosity conditions, the irradiated area will be selected as a characteristic raw material sub-region.

[0091] If the fiber characterization parameters of the irradiated area meet the normal porosity conditions, then the irradiated area will not be screened.

[0092] The normal condition for the pores is that the fiber characterization parameters of the irradiated area do not exceed the preset fiber characterization reference values.

[0093] Specifically, the preset fiber characterization reference value can be set by those skilled in the art based on the precision requirements of the water-soluble fertilizer preparation process. The higher the precision requirement, the smaller the preset fiber characterization reference value. Preferably, the fiber characterization reference value can be 0.1.

[0094] Specifically, the process of determining the distribution of the characteristic raw material sub-regions includes,

[0095] Establish a rectangular coordinate system on the plane where the livestock and poultry manure raw materials are located, and obtain the position coordinates of the regional geometric center point of each characteristic raw material sub-region;

[0096] Calculate the distance between the geometric center points of adjacent characteristic material sub-regions;

[0097] The spacing variance is calculated based on the distance between the geometric center points of several regions, and the spacing variance is determined as the distribution coefficient of the characteristic raw material sub-region.

[0098] Specifically, here is a concrete example of determining the distribution coefficient, where the location information of each characteristic raw material sub-region is obtained as (3,5), (7,9), and (10,6), respectively, according to the formula... The lengths of the lines connecting the geometric center points of adjacent feature material sub-regions are calculated. The lengths are 5.66, 4.24, and 7.07, respectively. The variance of the distance is 1.33, and the distribution coefficient is 1.33.

[0099] Specifically, please refer to Figure 3 The diagram shown is a flowchart illustrating the logic of determining whether livestock and poultry manure raw materials have abnormal fiber content according to an embodiment of the present invention. Determining whether the livestock and poultry manure raw materials have abnormal fiber content includes...

[0100] If the distribution coefficient meets the fiber abnormality judgment condition, then it is determined that the livestock and poultry manure raw material has an abnormal fiber content.

[0101] If the distribution coefficient does not meet the fiber abnormality judgment criteria, then it is determined that the livestock and poultry manure raw material does not have an abnormal fiber content.

[0102] The fiber anomaly determination condition is that the distribution coefficient exceeds a preset distribution coefficient threshold.

[0103] Specifically, the preset distribution coefficient threshold can be set by those skilled in the art based on the precision requirements of the water-soluble fertilizer preparation process. The higher the precision requirements, the smaller the preset distribution coefficient threshold. Preferably, the fiber characterization reference value can be 1.

[0104] Specifically, this invention determines whether there is an abnormal fiber content in livestock and poultry manure raw materials based on the distribution of characteristic raw material sub-regions. It is understood that the fibers in livestock and poultry manure raw materials create pores, and the characteristic raw material sub-regions are irradiated areas with a high porosity. By calculating the length of the line connecting the geometric center points of several adjacent characteristic raw material sub-regions, the spatial spacing information of the characteristic raw material sub-regions can be obtained. The smaller the variance of the length value, the smaller the distribution coefficient, and the more stable the length value of the line connecting adjacent geometric center points of adjacent regions, the more uniform the distribution of the characteristic raw material sub-regions in the livestock and poultry manure raw materials. Conversely, the larger the variance of the length value, the larger the distribution coefficient, and the greater the fluctuation in the length value of the line connecting adjacent geometric center points of adjacent regions, the more uneven the distribution of the characteristic raw material sub-regions in the livestock and poultry manure raw materials. This invention determines whether there is an abnormal fiber content in livestock and poultry manure raw materials by analyzing the distribution of characteristic raw material sub-regions, thereby quantifying the fiber distribution in the raw materials during the preparation of water-soluble fertilizers and improving the extraction efficiency of organic components from fertilizer raw materials.

[0105] Specifically, the pretreatment involves cutting the livestock and poultry manure raw material along a direction perpendicular to the plane in which the livestock and poultry manure raw material is located.

[0106] Specifically, this invention pre-treats livestock and poultry manure raw materials with abnormal fiber content. It is understood that when abnormal fiber content exists, the fiber distribution in the livestock and poultry manure raw materials is uneven. Direct crushing in this case results in large chunks or long strips of material remaining in areas with high fiber content due to the high toughness and complex structure of the fibers. Conversely, areas with low fiber content are easily over-crushed, leading to uneven particle size in the crushed products. This results in uneven microbial activity during fermentation, affecting the extraction of organic components and the final quality of the fertilizer. Pre-crushing cutting breaks down large fiber clumps and long fiber bundles in high-fiber areas, reducing their size and loosening their structure. During crushing, the livestock and poultry manure raw materials are subjected to uniform force, resulting in uniform particle size of the crushed products, improving the extraction of organic components and the final quality of the fertilizer. By pre-treating livestock and poultry manure raw materials with abnormal fiber content, this invention enables adaptive control of subsequent preparation processes based on the different fiber contents of the raw materials during the preparation of water-soluble fertilizers, thereby improving the extraction efficiency of organic components from fertilizer raw materials.

[0107] Specifically, determining the number of preprocessing steps includes obtaining fiber characterization parameters corresponding to each characteristic raw material sub-region, and determining the number of steps based on the maximum value of the fiber characterization parameters;

[0108] The number of treatments is positively correlated with the maximum value of the fiber characterization parameter, and the cutting interval between adjacent treatments is negatively correlated with the distribution coefficient.

[0109] Specifically, a specific embodiment is given here to determine the number of pretreatment processes and the cutting interval between adjacent processing processes. The fiber characterization parameters corresponding to each characteristic raw material sub-region are 0.088, 0.144, 0.072, 0.18, and 0.116, respectively. When the distribution coefficient is 1.33, the maximum value of the fiber characterization parameter is 0.18, the number of processing processes is 5, and the cutting interval is 4cm.

[0110] Specifically, please refer to Figure 4 The diagram shown is a flowchart illustrating the logic for determining whether the current preprocessing is valid according to an embodiment of the present invention. The process for determining whether the current preprocessing is valid includes:

[0111] The specific surface area variance is calculated based on the specific surface area of ​​the crushed products corresponding to several monitoring times, and the specific surface area variance is determined as the particle size difference value.

[0112] If the comparison of each specific surface area meets the normal conditions for particle size difference, the pretreatment is deemed effective, and the turning method for fermenting the crushed product is adjusted according to several specific surface areas.

[0113] If the comparison of each specific surface area does not meet the normal conditions for particle size difference, the preprocessing is deemed invalid and a warning signal is issued.

[0114] The normal condition for particle size difference is that the particle size difference value does not exceed a preset particle size difference reference value.

[0115] Specifically, a concrete example for determining particle size difference is given here. At each monitoring time, a sample of the crushed product is taken from the discharge port of the crusher, and its specific surface area is measured using a gas adsorption specific surface area analyzer. The specific surface areas at 1 min, 2 min, 3 min, 4 min, and 5 min after the start of crushing are 4.9, 5.1, 5.0, 4.8, and 5.2, respectively. The variance of the specific surface area is 0.02, and the particle size difference value is 0.02.

[0116] Specifically, the preset particle size difference reference value can be set by those skilled in the art based on the precision requirements of the water-soluble fertilizer preparation process. The higher the precision requirements, the smaller the preset particle size difference reference value. Preferably, the particle size difference reference value can be 0.2.

[0117] Specifically, this invention determines the effectiveness of pretreatment based on the comparison of various specific surface areas. It is understood that acquiring the specific surface area of ​​the crushed product at several monitoring points and calculating its variance can intuitively reflect the dispersion of the specific surface area. There is an inverse relationship between the particle size and specific surface area of ​​the crushed product; the smaller the particle size, the larger the specific surface area. Therefore, the smaller the variance of the specific surface area, the smaller the particle size difference, the smaller the particle size difference of the crushed product, and the more uniform the crushed product obtained during the crushing process, indicating that the current pretreatment is effective. Conversely, the larger the variance of the specific surface area, the larger the particle size difference, the larger the particle size difference of the crushed product, and the more uneven the crushed product obtained during the crushing process, indicating that the current pretreatment is ineffective. This invention determines the effectiveness of pretreatment based on the comparison of various specific surface areas, thereby enabling adaptive control of the subsequent preparation process according to the different fiber contents of the raw materials during the preparation of water-soluble fertilizers, improving the extraction efficiency of organic components in fertilizer raw materials.

[0118] Specifically, the process of adjusting the turning method for fermenting the crushed products includes,

[0119] Calculate the average specific surface area based on the specific surface area of ​​the crushed products at each monitoring time.

[0120] The turning frequency for fermenting the crushed products is adjusted according to the average specific surface area.

[0121] The turning frequency is negatively correlated with the average specific surface area.

[0122] Specifically, this invention relates to a turning method for fermenting crushed products based on adjustments to several specific surface areas. It is understood that the larger the average specific surface area of ​​the crushed products at several monitoring times, the larger the area of ​​the crushed products in contact with air. During fermentation, oxygen can be transferred to the material more quickly and fully, providing sufficient oxygen for the growth and metabolism of aerobic microorganisms, resulting in higher microbial activity and smoother fermentation. Furthermore, crushed products with a large specific surface area dissipate heat relatively easily, preventing excessively high local temperatures due to heat accumulation, which would affect microbial growth and fermentation. Therefore, a lower turning frequency is required. Excessive turning frequency increases labor costs and equipment wear, and also interferes with the microbial environment during fermentation. This invention, by adjusting the turning method for fermenting crushed products based on several specific surface areas, enables adaptive control of subsequent preparation processes in the preparation of water-soluble fertilizers based on the different fiber contents of the raw materials, thereby improving the extraction efficiency of organic components from fertilizer raw materials.

[0123] The technical solution of the present invention has been described above with reference to 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 can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of the present invention.

[0124] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A method for preparing an intelligently regulated water-soluble fertilizer, characterized in that, include: Livestock and poultry manure raw materials required to obtain water-soluble fertilizer components are pre-extruded; The surface of the pre-compressed livestock and poultry manure raw material is irradiated with a light source of preset intensity, and the surface of the livestock and poultry manure raw material is divided into several irradiation areas. The fiber characterization parameters are determined based on the comparison of dark spots in each irradiation area, and the characteristic raw material sub-regions are screened based on the fiber characterization parameters. The process of determining the fiber characterization parameters includes: acquiring surface images of each irradiated area after irradiation; determining the dark spot contour based on the surface images; determining the dark spot area based on the pixels of the dark spot contour; calculating the ratio of the dark spot area to the irradiated area; and determining the ratio as the fiber characterization parameters. The process of screening characteristic raw material sub-regions includes: if the fiber characterization parameters of the irradiated area do not meet the normal porosity conditions, the irradiated area is screened as a characteristic raw material sub-region, and the normal porosity conditions are that the fiber characterization parameters of the irradiated area do not exceed a preset fiber characterization reference value. Based on the distribution of the characteristic raw material sub-regions, it is determined whether there is an abnormal fiber content in the livestock and poultry manure raw material. In response to the presence of an abnormal fiber content, the livestock and poultry manure raw material is pretreated, and the number of pretreatment processes is determined based on the fiber characterization parameters corresponding to each characteristic raw material sub-region. The livestock and poultry manure raw material is crushed to obtain crushed products. The specific surface area of ​​the crushed products corresponding to several preset monitoring times is obtained. The effectiveness of the pretreatment is determined based on the comparison of each specific surface area. The turning method for fermenting the crushed products is adjusted based on several specific surface areas. Organic components are extracted from the crushed product after fermentation and mixed with the remaining components in the water-soluble fertilizer to concentrate and obtain the target water-soluble fertilizer.

2. The preparation method of the intelligent regulation-type water-soluble fertilizer according to claim 1, characterized in that, The process of pre-compressing the livestock and poultry manure raw material includes, Apply a compressive force perpendicular to the plane of the livestock and poultry manure raw material; The height values ​​of several points on the surface of the livestock and poultry manure raw material in the direction perpendicular to the horizontal plane are acquired in real time, and the height fluctuation curve of the height values ​​of several points as a function of extrusion pressure is plotted. Calculate the difference between the maximum and minimum values ​​of the height fluctuation curve; If the difference does not exceed a preset difference threshold, then the pre-extrusion is determined to be complete.

3. The preparation method of the intelligent regulation-type water-soluble fertilizer according to claim 2, characterized in that, The process of determining the distribution of the characteristic raw material sub-regions includes, Establish a rectangular coordinate system on the plane where the livestock and poultry manure raw materials are located, and obtain the position coordinates of the regional geometric center point of each characteristic raw material sub-region; Calculate the distance between the geometric center points of adjacent characteristic material sub-regions; The spacing variance is calculated based on the distance between the geometric center points of several regions, and the spacing variance is determined as the distribution coefficient of the characteristic raw material sub-region.

4. The preparation method of the intelligent regulation-type water-soluble fertilizer according to claim 3, characterized in that, Determining whether the livestock and poultry manure raw material has abnormal fiber content includes, If the distribution coefficient meets the fiber abnormality judgment condition, then it is determined that the livestock and poultry manure raw material has an abnormal fiber content. The fiber anomaly determination condition is that the distribution coefficient exceeds a preset distribution coefficient threshold.

5. The method for preparing the intelligent regulation-type water-soluble fertilizer according to claim 4, characterized in that, The pretreatment involves cutting the livestock and poultry manure raw material along a direction perpendicular to the plane in which the livestock and poultry manure raw material is located.

6. The method for preparing the intelligent regulation-type water-soluble fertilizer according to claim 5, characterized in that, Determining the number of preprocessing steps includes obtaining fiber characterization parameters corresponding to each characteristic raw material sub-region, and determining the number of steps based on the maximum value of the fiber characterization parameters; The number of treatments is positively correlated with the maximum value of the fiber characterization parameter, and the cutting interval between adjacent treatments is negatively correlated with the distribution coefficient.

7. The method for preparing the intelligent regulation-type water-soluble fertilizer according to claim 6, characterized in that, The process of determining whether the preprocessing is effective includes, The specific surface area variance is calculated based on the specific surface area of ​​the crushed products corresponding to several monitoring times, and the specific surface area variance is determined as the particle size difference value. If the comparison of each specific surface area meets the normal conditions for particle size difference, the pretreatment is deemed effective, and the turning method for fermenting the crushed product is adjusted according to several specific surface areas. If the comparison of each specific surface area does not meet the normal conditions for particle size difference, the preprocessing is deemed invalid and a warning signal is issued. The normal condition for particle size difference is that the particle size difference value does not exceed a preset particle size difference reference value.

8. The method for preparing the intelligent regulation-type water-soluble fertilizer according to claim 7, characterized in that, The process of adjusting the turning method includes, Calculate the average specific surface area based on the specific surface area of ​​the crushed products at each monitoring time. The turning frequency for fermenting the crushed products is adjusted according to the average specific surface area. The turning frequency is negatively correlated with the average specific surface area.

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