Autonomous rolling microorganism breeding device and working method thereof

Abstract

The invention belongs to the technical field of sewage treatment, and particularly relates to an autonomous rolling microorganism breeding device and a working method thereof.The autonomous rolling microorganism breeding device comprises a filler sphere formed by wrapping filler with a hollow spherical shell; the metal box body comprises a space for accommodating and limiting the plurality of filler balls, and hollow areas are at least arranged at the bottom and the top of the space; and the aeration device introduces air into the space, and a filler ball floats at the top of the water body and moves and rolls under the action of the air. Through modular design of the filler sphere, structured accommodation of the metal box body and a dynamic rolling mechanism driven by the aeration device, the key problems of existing fixed filler and suspended filler are solved, the removal efficiency is improved, the cleaning and maintenance cost is greatly reduced, meanwhile, the accumulation and blockage phenomena are eliminated through dynamic movement, and the service life of the filler is prolonged. A controllable filler moving track is ensured, so that the overall efficiency and stability of sewage treatment are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of sewage treatment, and in particular relates to an autonomous rolling microorganism breeding device and a working method thereof. Background Art

[0002] In existing sewage treatment technologies, the selection and use of fillers is one of the key links, among which fixed fillers and suspended fillers are two common treatment methods.

[0003] Fixed fillers are usually fixed to a specific position of the sewage treatment equipment by a frame or bracket. When the sewage flows through the surface of the filler, the biofilm-forming microorganisms degrade the ammonia nitrogen and organic pollutants in the water. However, this method has some obvious limitations. First, since the filler is fixed, the contact area and contact time between the sewage and the filler are limited, especially when treating high-load or fast-flowing sewage, the removal efficiency of pollutants is low; in addition, the biofilm of the fixed filler surface will gradually age or fail after long-term operation, but its fixed design makes the cleaning and replacement process very difficult, requiring shutdown for maintenance and operation, which not only increases maintenance costs, but may also lead to interruptions in sewage treatment.

[0004] Suspended filler is a form of filler that floats freely in sewage. It relies on the flow of sewage or the stirring action of aeration equipment to make the filler move in the water, thereby increasing its contact frequency with sewage. This method overcomes the contact surface limitation problem of fixed filler to a certain extent. However, due to the lack of fixed support for suspended filler, during long-term operation, the filler is prone to accumulation or blockage in certain areas of the treatment equipment due to changes in water flow dynamics, thereby hindering the flow and circulation of sewage; the above-mentioned accumulation problem not only leads to reduced sewage treatment efficiency, but also causes uneven mixing in the local treatment equipment, resulting in unsatisfactory pollutant removal effects in some areas. In addition, the movement of suspended filler depends on the power of water flow, and the uneven distribution of water flow may make it difficult to control the running trajectory of the filler in the equipment, further affecting the uniform treatment of sewage. In summary, although suspended filler makes up for the defects of fixed filler to a certain extent, there is still much room for improvement in its operating stability and treatment efficiency. Summary of the invention

[0005] The present invention provides an autonomous rolling microorganism breeding device and a working method thereof, which can effectively solve the problems in the background technology.

[0006] To achieve the above object, the technical solution of the present invention is as follows: Autonomous rolling microbial breeding device, including: The filler sphere is formed by encapsulating the filler with a hollow spherical shell; A metal box body, comprising a space for accommodating and confining a plurality of the filler spheres, wherein the space is provided with a hollow area at least at the top; an aeration device for introducing air into the space; After the autonomous rolling microorganism breeding device is immersed in water, the filler spheres float on the top of the water and move and roll under the action of the air.

[0007] Furthermore, a hollow area is also provided at the bottom of the space, and the aeration device is installed on the outside of the metal box, and introduces air into the space from the hollow area at the bottom of the space through a plurality of air outlet points.

[0008] Furthermore, the space is a right prism space, the space has a symmetry plane in the height direction, and the gas outlet point of the aeration device is located on the symmetry plane and / or is symmetrically arranged with respect to the symmetry plane.

[0009] Furthermore, the gas outlet points are distributed along a straight line, and the straight line includes one or multiple parallel lines.

[0010] Further, the space is a cylindrical space, the space has an axis in the height direction, and the gas outlet point of the aeration device is located on the axis and / or is symmetrically arranged about the axis.

[0011] Furthermore, the gas outlet points are distributed along a circular ring, and the circular ring includes one circle, or multiple parallel circles.

[0012] Furthermore, the metal box is divided into a plurality of interconnected subspaces by a hollow plate, and at least one of the filler type, size range, quantity range, and structural form of the filler spheres in each of the subspaces is different.

[0013] Furthermore, within the local range of the filler sphere, the connections between the hollowed-out positions are distributed in a fan-leaf shape.

[0014] A working method of the autonomous rolling microorganism breeding device as described above comprises: According to the device design parameters, a set number of the filler balls are placed in the metal box; Immersing the autonomous rolling microorganism breeding device in the sewage to be treated, setting the aeration device to a low power mode, and starting the aeration device; The power of the aeration device is adjusted step by step, and the aeration device is kept working during the adjustment process, and during the continuous working process, a video of the movement and tumbling of the filler balls is captured by a camera device; The video is decomposed into multiple frames of images, each frame of the image is analyzed, the analysis result is compared with the design index, and the final power is determined according to the comparison result.

[0015] Further, analyzing each frame of the image, comparing the analysis result with the design index, and determining the final power according to the comparison result, including: Continuously acquiring two frames of images, and performing grayscale processing and normalization processing on the two frames of images; Comparing the processing results of the two frames of images one by one, and obtaining the absolute difference of the corresponding pixels; Setting a difference threshold, judging whether pixels are similar based on a comparison between the absolute difference and the difference threshold, and determining the number of similar pixels; The ratio of the number of similar pixels to the total number of pixels is calculated, and when the ratio is within a set index range, the power values ​​corresponding to the two frames of the image are determined to be final powers.

[0016] The technical solution of the present invention can achieve the following technical effects: The autonomous rolling microbial breeding device in the present invention effectively solves the key problems of existing fixed fillers and suspended fillers through the modular design of filler spheres, the structured containment of the metal box, and the dynamic tumbling mechanism driven by the aeration device, significantly improves the removal efficiency, and greatly reduces the cleaning and maintenance costs. At the same time, it eliminates accumulation and blockage through dynamic movement, ensuring that the running trajectory of the filler is controllable, thereby improving the overall efficiency and stability of sewage treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of the bottom structure of the autonomous rolling microorganism breeding device corresponding to the straight prism space; Figure 2 for Figure 1 Schematic diagram of the top structure of the autonomous rolling microbial breeding device; Figure 3 It is a schematic diagram of the placement of the filler spheres relative to the metal box; Figure 4 A schematic diagram of the structure of an aeration device; Figure 5 It is a schematic diagram of the effect of airflow on the filler spheres in the right prism space; Figure 6 A schematic diagram of the bottom structure of the autonomous rolling microbial breeding device corresponding to the cylindrical space; Figure 7 for Figure 6 Schematic diagram of the top structure of the autonomous rolling microbial breeding device; Figure 8 Another structural schematic diagram of an aeration device; Fig. 9 It is a schematic diagram of the installation of the hollow plate; Fig.10 It is a schematic diagram showing that the filler sphere is partially fan-shaped.

[0019] Figure numerals: 1. filler sphere; 11. hollow position; 12. connection; 2. metal box; 21. side wall; 22. top plate; 23. bottom plate; 24. symmetry plane; 25. hollow plate; 26. subspace; 3. aeration device; 31. air inlet; 32. air outlet; 33. pipe body; 4. airflow. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0022] Embodiment 1 like Figures 1 to 10 As shown, an autonomous rolling microorganism breeding device comprises: The filler spheres 1 are formed by covering the filler with a hollow spherical shell; the metal box 2 includes a space for accommodating and limiting a plurality of filler spheres 1, and the space is provided with a hollow area at least at the top; the aeration device 3 introduces air into the space; after the autonomous rolling microorganism breeding device is immersed in the water body, the filler spheres 1 float on the top of the water body, and move and roll under the action of the air.

[0023] The filler sphere 1 used in the present invention has a hollow spherical shell design, which not only greatly increases the specific surface area, but also allows sewage to pass freely, thereby improving the contact efficiency between the filler and the sewage; see Figure 3, showing the location of the hollow position 11 on the packing sphere 1. Under the action of the aeration device 3, the water outside the device can be better brought into the metal box 2, and the microorganisms in the metal box 2 can be brought out of the box, so as to nitrify the ammonia nitrogen and COD in the water more quickly; the packing sphere 1 will continuously roll and move, so that it can be in all-round dynamic contact with the sewage, eliminating the limitation of static contact of fixed packing. During the rolling process of the packing sphere 1, the microbial community will evenly form a biofilm, avoiding the problem of local excessive growth of fixed packing, thereby improving the removal efficiency of ammonia nitrogen and organic pollutants.

[0024] The design of the filler sphere 1 can be understood as a movable modular structure. The metal box 2 provides a space to accommodate and confine the filler sphere 1. The filler sphere 1 can be easily taken out, which is convenient for cleaning and replacement. The airflow 4 of the aeration device 3 drives the filler sphere 1 to move continuously inside the device, so that the filler surface maintains a good dynamic clean state due to tumbling, reducing the impact of biofilm aging and the need for frequent cleaning and replacement. Moreover, since the filler sphere 1 is easy to take out and replace, there is no need for long-term shutdown, which significantly reduces the difficulty and cost of maintenance while ensuring the continuity of the sewage treatment process.

[0025] The aeration device 3 forms a uniform distribution of water flow and bubbles, fundamentally solving the problems of accumulation and blockage of the filler spheres 1 that may occur during operation. The aeration device 3 drives the filler spheres 1 to roll and move freely in the box body through uniform injection of air, avoiding the situation where the suspended filler is aggregated due to water flow turbulence, thereby maintaining the smoothness and efficiency of the system operation. The dynamic rolling of the filler spheres 1 can be automatically dispersed under the impetus of the water flow, ensuring uniform distribution of the filler in the box body and more comprehensive and efficient sewage treatment. The airflow 4 generated by the aeration device 3 regularly pushes the filler spheres 1 to roll and move, making the movement trajectory of the filler spheres 1 relatively predictable, ensuring uniform distribution of oxygen and pollutants in the sewage.

[0026] The autonomous rolling microbial breeding device in this embodiment effectively solves the key problems of existing fixed fillers and suspended fillers through the modular design of the filler spheres 1, the structured containment of the metal box 2, and the dynamic tumbling mechanism driven by the aeration device 3, significantly improves the removal efficiency, and greatly reduces the cleaning and maintenance costs. At the same time, it eliminates accumulation and blockage through dynamic movement, ensures that the running trajectory of the filler is controllable, and thus improves the overall efficiency and stability of sewage treatment.

[0027] During the implementation process, the installation of the aeration device 3 can be achieved in the metal box 2. Specifically, the aeration device 3 is installed on the inner side of the metal box 2 and at the bottom, so that the introduced air can move from bottom to top, thereby achieving the technical effect required in this embodiment. In this way, only the top plate 22 of the metal box 2 is provided with a hollow area, or both the top plate and the bottom plate are provided with a hollow area.

[0028] As another better way, Figure 1 and 3 As shown, a hollow area is also provided at the bottom of the space, and an aeration device 3 is installed outside the metal box 2, and air is introduced into the space from the hollow area at the bottom of the space through multiple air outlet points 32. The external aeration device 3 can adjust the distribution of the airflow 4 more flexibly through reasonable arrangement, ensuring that different areas inside the metal box 2 are evenly affected by the airflow 4, and the external arrangement is more convenient for the installation and maintenance of the aeration device 3, and is convenient for regular maintenance and cleaning, reducing downtime caused by internal blockage of the equipment, and further improving operating efficiency and reliability.

[0029] When considering the activity space of the filler balls 1, the removal of the aeration device 3 increases the effective activity space in the box, allowing the filler balls 1 to roll and move more freely, which can reduce the material usage of the metal box 2 to a certain extent, and reduce the size of the metal box 2 under the same treatment effect.

[0030] As an optimized method, the space is a right prism space, the space has a symmetry plane 24 in the height direction, and the gas outlet point 32 of the aeration device 3 is located on the symmetry plane 24 and / or is symmetrically arranged about the symmetry plane 24. Figures 1 to 3 In the figure, the right prism state of the space is shown, and a specific right quadrangular prism is taken as an example, including side walls 21, a top plate 22 and a bottom plate 23; in this preferred embodiment, the prism has a regular shape and strong symmetry, which is convenient for the combination and arrangement of different unit modules, and can achieve large-scale sewage treatment in parallel or series.

[0031] In this preferred embodiment, by setting the outlet point 32 of the aeration device 3 on the height direction symmetry plane 24 of the straight prism-shaped space, and / or symmetrically distributed about the symmetry plane 24, the uniformity of the aeration airflow 4 can be further improved, so that the airflow 4 covers the entire treatment space, see Figure 1 and Figure 4 , showing the location of the symmetry plane 24, and the figure shows that some of the gas outlet points 32 are distributed on the symmetry plane 24, and some of the gas outlet points 32 are symmetrically arranged about the symmetry plane 24. In the above embodiment, the regularity and symmetry of the right prism combined with the symmetrically arranged aeration design ensure the balance of the distribution of the airflow 4 and significantly reduce the phenomenon of local insufficient or over-aeration. The symmetrical distribution of the airflow 4 not only optimizes the movement trajectory of the filler sphere 1, but also guides the filler sphere 1 to achieve more regular tumbling and movement under the action of the airflow 4, avoiding the problem of disordered movement or accumulation of the filler, and maximizing its efficiency in dynamic contact with sewage.

[0032] like Figure 5As shown, the airflow 4 flows out from the air outlet 32 ​​of the aeration device 3 and enters the distribution form of the right prism space relatively evenly. The filler sphere 1 in a floating state will be displaced and rotated within a certain range under the action of the airflow 4 shown in the figure; the movement displacement here is related to the size of the space, the density of the filler sphere 1 floating on the top of the water body, and the aeration power; for example, the filler sphere 1 in a denser state often has a smaller displacement and rotation angle, otherwise, a larger displacement and rotation angle is obtained; for another example, the filler sphere 1 under a larger aeration power often has a larger displacement and rotation angle, otherwise, a smaller displacement and rotation angle is obtained; the specific situation needs to be comprehensively set according to the actual application scenario, equipment size, filler sphere 1 size and aeration power.

[0033] In addition, the symmetrically arranged aeration design guides the bubbles and sewage to form a highly regular circulation flow, making the gas-liquid mixing inside the prismatic space more efficient and stable; the sewage obtains overall mixing, avoiding the problem of insufficient oxygen concentration in local areas. At the same time, the symmetrical distribution of bubbles can more effectively extend the gas-liquid contact time, optimize the oxygen transfer efficiency, and achieve a more uniform and efficient pollutant removal process.

[0034] As a specific preference of this method, the gas outlet points 32 are distributed along a straight line, and the straight line includes one or multiple parallel lines. Figure 4 As shown, a specific embodiment in which the right prism is a quadrangular prism is shown, and in this embodiment, the gas outlet points 32 of the aeration device 3 are arranged along three parallel straight lines, and each straight line distribution is achieved by limiting the gas outlet points 32 through the tube body 33; in this structural form, the gas outlet points 32 on the middle tube body 33 are located on the symmetry plane 24, and the gas outlet points 32 on the tube bodies 33 on both sides are symmetrically arranged about the symmetry plane 24.

[0035] As another form of space, Figures 6-8 As shown, the space is a cylindrical space, the space has an axis in the height direction, and the gas outlet points 32 of the aeration device 3 are located on the axis and / or are symmetrically arranged about the axis. Specifically, the gas outlet points 32 are distributed along a circular ring, and the circular ring includes one circle, or multiple parallel circles.

[0036] In the above preferred solution, by designing the space into a cylindrical shape and arranging the gas outlet 32 ​​in combination with the axis, the solution utilizes the regular symmetry of the cylinder and the multi-level design of the ring to significantly improve the gas-liquid mixing efficiency, the dynamic movement effect of the filler sphere 1, and the oxygen transfer utilization rate. The single-ring or multi-ring design provides flexible options for different treatment needs, optimizes the performance of the sewage treatment system, and further reduces the manufacturing and operating costs by simplifying the structure and improving the convenience of maintenance, and is suitable for a wide range of sewage treatment scenarios.

[0037] During implementation, multiple gas outlets 32 of the aeration device 3 can be supplied with gas through the same air inlet 31 , thereby further reducing equipment costs; of course, when it is desired to achieve aeration differences in different areas, air can also be supplied through different air inlets 31 .

[0038] As a preferred embodiment of the above, Fig. 9 As shown, the metal box body 2 is divided into a plurality of interconnected subspaces 26 by a hollow plate body 25, and at least one of the filler type, size range, quantity range, and structural form of the filler spheres 1 in each subspace 26 is different.

[0039] In this preferred embodiment, the subspaces 26 are separated by the hollow plate 25, and the parameters of the filler spheres 1 can be designed according to the different pollutant distribution characteristics and concentration distribution differences of the sewage, and the filler spheres 1 with different functions are arranged in different subspaces 26, and multiple microorganisms can be grown through multiple subspaces 26. In the implementation process, the parameters of the filler spheres 1 in different subspaces 26 can be flexibly designed, and the density, size and structure of the filler can be adjusted inside the subspace 26 to meet the sewage treatment needs in different scenarios. Fig. 9 The embodiment shown in the figure, in which two hollow plates 25 are divided into three sub-spaces 26, is only an example. This situation and other situations in which the number of hollow plates 25 is divided also fall within the protection scope of the present invention.

[0040] Considering the movement form, the hollow plate 25 not only separates the subspaces 26, but also ensures the connectivity between the subspaces 26. Sewage and airflow 4 can flow freely between the subspaces 26, promoting the orderly movement of the filler spheres 1. By separating different subspaces 26, the movement range of the filler spheres 1 is constrained, avoiding the problem of airflow 4 and water flow blockage caused by filler accumulation in a large range.

[0041] As a preferred embodiment of the above, Fig.10 As shown, within the local range of the packing sphere 1, the connections 12 between the hollow positions 11 are distributed in a fan-leaf shape. The fan-leaf-shaped connections 12 can effectively guide the flow of sewage during the movement of the packing sphere 1, increase the fluid disturbance near the surface of the sphere, and avoid fluid stagnation by guiding and disturbing the water flow, thereby improving the dynamic mixing effect of sewage near the packing and facilitating the diffusion and degradation of pollutants. The fan-leaf-shaped connections 12 will produce a local vortex effect when the packing sphere 1 rolls, enhancing the flushing effect of the water flow. At the same time, under the action of the airflow 4 and the water flow, the movement of the packing sphere 1 is more flexible.

[0042] By introducing a fan-shaped distribution design at the local hollow connection 12 of the packing sphere 1, the fluid dynamic characteristics, microbial biofilm efficiency, self-cleaning ability and dynamic movement effect of the packing are significantly optimized; not only the mixing uniformity and oxygen transfer efficiency of the sewage are enhanced, but also the structural stability and adaptability of the packing sphere 1 are improved, while the energy consumption and maintenance cost of the system are reduced, and it is suitable for a variety of sewage treatment scenarios.

[0043] Embodiment 2 A working method of the autonomous rolling microorganism breeding device as in the first embodiment comprises: S1: According to the design parameters of the device, a set number of filler balls are placed in the metal box. In this step, it is necessary to ensure that the total number of filler balls matches the design capacity of the device to avoid excessive filler causing accumulation or too little filler reducing the treatment efficiency; S2: Immerse the autonomous rolling microbial breeding device in the sewage to be treated, set the aeration device to low power mode, and start the aeration device; during the implementation process, before placing the device, check whether the hollow area on the top of the box is unobstructed to ensure that the sewage can freely enter and exit the metal box. After placement, ensure that the device is completely submerged so that the filler balls can float in the sewage. By running at low power, the filler balls can be prevented from violent movement or collision due to excessive initial airflow, providing a mild initial condition to facilitate subsequent step-by-step debugging; S3: The power of the aeration device is adjusted step by step. During the adjustment process, the aeration device is kept working continuously. During the continuous working process, a video of the movement and tumbling of the filler balls is captured by a camera. The power of the aeration device is gradually increased according to the design power range of the device. For example, the initial power is set to 10%, and the power is increased by 5% or 10% each time. After each adjustment, the power is kept constant for a period of time, such as 1 to 2 minutes, to ensure that the filler balls reach a stable dynamic motion state. During the step-by-step debugging process, the aeration device is always kept working to ensure that the movement of the filler balls is continuous and observable. During the implementation process, the camera equipment can use a high-frame rate camera, preferably fixed on the top of the metal box to ensure that the movement, rolling and overall distribution of the filler balls can be clearly captured. At each level of power operation, more detailed independent videos can be taken for subsequent analysis to record the dynamic changes of the filler balls under different power conditions; S4: Decompose the video into multiple frames of images, analyze each frame of the image, compare the analysis result with the design index, and determine the final power according to the comparison result.

[0044] In this step, video processing software, such as OpenCV, MATLAB, etc., can be used to decompose the video, and the video can be decomposed into single-frame images. As a specific method for analyzing each frame of the image, the position, direction and movement trajectory of the filler spheres are identified in each frame of the image; specifically, the center position of the filler spheres is tracked, and the displacement range in each frame of the image is calculated, and the rotation angle is calculated by analyzing the changes in the hollow structure of the filler spheres, and the displacement rate of the filler spheres in consecutive frames is analyzed according to the time difference between frames and the displacement range; based on this method, the design indicators can set corresponding indicator values ​​for the displacement range, rotation angle and speed change, so as to perform comparison and power selection. Of course, this analysis method is only an example of a specific method, and is not intended to limit the scope of protection of this application.

[0045] This preferred solution can not only intuitively and efficiently complete the debugging of the dynamic performance of the packing spheres, but also provide a scientific power optimization basis for the aeration device through precise data analysis, thereby significantly improving the dynamic biofilm formation, self-cleaning and gas-liquid mixing effects of the packing spheres, while reducing operating energy consumption and enhancing the stability and adaptability of the device.

[0046] As an optimization method for analyzing each frame of image, in this preferred solution, each frame of image is analyzed, the analysis result is compared with the design index, and the final power is determined according to the comparison result, including: S41: continuously acquiring two frames of images, and graying and normalizing the two frames of images, thereby reducing computational complexity and reducing external interference. Graying and normalizing the single-channel data can reduce computing resource consumption. S42: Compare the processing results of the two frames of images pixel by pixel to obtain the absolute difference of the corresponding pixels; calculate the degree of change of each pixel point in the two frames of images to reflect the movement state of the filler spheres and the state of the bubbles, etc. Specifically: D(i,j)=∣I1(i,j)−I2(i,j)∣; Among them, I1(i,j) and I2(i,j) are the grayscale values ​​of the pixel positions (i,j) and (i,j) in frame 1 and frame 2 respectively; if the absolute difference D(i,j) is small, it often means that the corresponding pixel has not changed much in the two frames, which may be a static or slow moving state. If the difference D(i,j) is large, it means that the corresponding pixel has changed significantly, which may be that the packing sphere moves faster. S43: Setting a difference threshold, judging whether the pixels are similar based on the comparison between the absolute difference and the difference threshold, and determining the number of similar pixels; the smaller the absolute difference, the more similar they are. In this step, the entire image is traversed pixel by pixel, and the number of similar pixels that meet the conditions is counted. The difference threshold can be dynamically adjusted according to the actual sewage treatment needs, thereby controlling the sensitivity to subtle changes; S44: Calculate the ratio of the number of similar pixels to the total number of pixels. When the ratio is within the range of the set index, determine that the power value corresponding to the two frames of images is the final power. In step S44, set the range of the index to an appropriate range between the maximum value and the minimum value. By selecting within this range, it can be ensured that the final power enables the filler spheres to obtain a more appropriate state of motion, while also obtaining a more appropriate amount of gas.

[0047] In this preferred embodiment, the image not only reflects the situation of the filler spheres, but also appropriately reflects the situation of the bubbles. A relatively simple processing process can be obtained by comparing pixels one by one. Dynamic threshold adjustment and regional analysis further optimize the calculation efficiency. By comparing the ratio and range of similar pixels, the aeration power is accurately adjusted to ensure the optimal state of filler movement and gas-liquid mixing.

[0048] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. Autonomous rolling microorganism breeding device, characterized in that: include: The filler sphere is formed by encapsulating the filler with a hollow spherical shell; A metal box body, comprising a space for accommodating and confining a plurality of the filler spheres, wherein the space is provided with a hollow area at least at the top; an aeration device for introducing air into the space; After the autonomous rolling microorganism breeding device is immersed in water, the filler spheres float on the top of the water and move and roll under the action of the air.

2. The autonomous rolling microorganism breeding device according to claim 1 is characterized in that: A hollow area is also provided at the bottom of the space, and the aeration device is installed outside the metal box, and introduces air into the space from the hollow area at the bottom of the space through a plurality of air outlet points.

3. The autonomous rolling microorganism breeding device according to claim 2 is characterized in that: The space is a right prism space, and the space has a symmetry plane in the height direction. The gas outlet point of the aeration device is located on the symmetry plane and / or is symmetrically arranged with respect to the symmetry plane.

4. The autonomous rolling microorganism breeding device according to claim 3 is characterized in that: The gas outlet points are distributed along a straight line, and the straight line includes one or a plurality of parallel lines.

5. The autonomous rolling microorganism breeding device according to claim 2, characterized in that: The space is a cylindrical space, and the space has an axis in the height direction. The gas outlet point of the aeration device is located on the axis and / or is symmetrically arranged about the axis.

6. The autonomous rolling microorganism breeding device according to claim 5, characterized in that: The gas outlet points are distributed along a circular ring, and the circular ring includes one circle, or multiple parallel circles.

7. The autonomous rolling microorganism breeding device according to claim 1, characterized in that: The metal box is divided into a plurality of interconnected subspaces by a hollow plate, and at least one of the filler type, size range, quantity range, and structural form of the filler spheres in each of the subspaces is different.

8. The autonomous rolling microorganism breeding device according to claim 1, characterized in that: In the local range of the filler sphere, the connections between the hollow positions are distributed in a fan-leaf shape.

9. A working method of the autonomous rolling microorganism breeding device as claimed in claim 1, characterized in that: include: According to the device design parameters, a set number of the filler balls are placed in the metal box; Immersing the autonomous rolling microorganism breeding device in the sewage to be treated, setting the aeration device to a low power mode, and starting the aeration device; The power of the aeration device is adjusted step by step, and the aeration device is kept working during the adjustment process, and during the continuous working process, a video of the movement and tumbling of the filler balls is captured by a camera device; The video is decomposed into multiple frames of images, each frame of the image is analyzed, the analysis result is compared with the design index, and the final power is determined according to the comparison result.

10. The working method of the autonomous rolling microorganism breeding device according to claim 9, characterized in that: Analyze the image of each frame, compare the analysis result with the design index, and determine the final power according to the comparison result, including: Continuously acquiring two frames of images, and performing grayscale processing and normalization processing on the two frames of images; Comparing the processing results of the two frames of images one by one, and obtaining the absolute difference of the corresponding pixels; Setting a difference threshold, judging whether pixels are similar based on a comparison between the absolute difference and the difference threshold, and determining the number of similar pixels; The ratio of the number of similar pixels to the total number of pixels is calculated, and when the ratio is within a set index range, the power values ​​corresponding to the two frames of the image are determined to be final powers.

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