Equipment and method for ecologically utilizing channel dredged mud

Abstract

The invention discloses equipment and a method for ecologically utilizing channel dredged mud. The equipment comprises a screening machine, a chemical reactor, a microbial degradation tank, a stirring mixer and a conveying belt, the stirring mixer comprises a stirring mixer shell, a top cover is movably arranged at the upper end of the stirring mixer shell, a second driving motor and an image processing module are fixedly arranged on one side of the upper end of the top cover, and a driving gear is mounted at the position, located in the top cover, of the output end of the second driving motor. The transmission gear ring is arranged at the upper end of the interior of the top cover, and the transmission gear ring is in meshed connection with the driving gear; and the vertical pipe is fixedly arranged on one side of the lower end of the transmission gear ring, a third driving motor is arranged at the upper end of the interior of the vertical pipe, and the third driving motor is fixed to the transmission gear ring. According to the stirring mixer, the caking monitoring structure is arranged in the shell of the stirring mixer and is matched with the ultrasonic vibration rod, when caking is found, the caking is crushed by the ultrasonic vibration rod, and the mixing efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of ecological restoration, and in particular to an apparatus and method for the ecological utilization of dredged mud in waterways. Background Art

[0002] In recent years, the problem of dealing with a large amount of dredged mud generated in waterway maintenance work has become increasingly prominent. Traditional landfill or dumping methods not only occupy precious land resources, but may also cause secondary pollution to the surrounding environment, threatening the ecological balance; with the increasing awareness of environmental protection and the continuous progress of science and technology, people have begun to actively explore more environmentally friendly and sustainable methods for dealing with dredged mud.

[0003] In order to more scientifically deal with dredged mud, a screening machine can initially remove larger impurity particles in the mud, laying a foundation for subsequent treatment; a chemical reactor adjusts the pH value of the mud by adding agents and effectively fixes heavy metal ions, reducing their environmental risks; a microbial degradation tank is responsible for decomposing organic pollutants in the mud to further purify the mud; finally, after being evenly mixed by a stirring mixer, the treated mud is transported to a designated location for laying through a conveyor belt, realizing the resource utilization and ecological treatment of dredged mud.

[0004] During the above mixing process, if the humidity of the dredged soil or other auxiliary materials is too high, the materials adhere to each other, resulting in agglomeration during the stirring process. When agglomeration occurs, the operation of the stirring mixer needs to be immediately stopped to prevent further aggravation of the agglomeration and avoid unnecessary damage to the stirring mixer. Subsequently, the agglomerated matter is broken up. This treatment method reduces work efficiency. Therefore, an apparatus and method for the ecological utilization of dredged mud in waterways are proposed. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides an apparatus and method for the ecological utilization of dredged mud in waterways to solve the problems raised in the above background art.

[0006] To achieve the above object, the present invention provides the following technical solution: An apparatus for the ecological utilization of dredged mud in waterways, comprising: A screening machine, a chemical reactor, a microbial degradation tank, a stirring mixer, and a conveyor belt; The stirring mixer includes a stirring mixer housing, the upper end of the stirring mixer housing is movably provided with a top cover, the middle position at the upper end of the top cover is fixedly provided with a first driving motor, the output end of the first driving motor is fixedly provided with an inner frame inside the stirring mixer housing, three stirring rods are uniformly distributed along a ring below the inner frame, and a second driving motor and an image processing module are fixedly provided on one side at the upper end of the top cover. The output end of the second driving motor is provided with a driving gear inside the top cover; The transmission gear ring is arranged at the upper end inside the top cover, and the transmission gear ring is rotatably connected to the top cover. The transmission gear ring is meshed and connected with the driving gear; The vertical pipe is fixedly arranged on one side of the lower end of the transmission gear ring. A third driving motor is arranged at the upper end inside the vertical pipe. The third driving motor is fixed to the transmission gear ring. A driving screw is installed at the output end of the third driving motor. An electromagnet is threadedly connected to the outside of the driving screw. Side rails are arranged on both sides inside the vertical pipe, and the side rails are fixed to the vertical pipe. The electromagnet is slidably connected to the side rails. A magnetic stainless steel sliding ring is arranged outside the vertical pipe, and the magnetic stainless steel sliding ring is slidably connected to the vertical pipe. A metal shielding ring is arranged outside the magnetic stainless steel sliding ring, and the metal shielding ring is fixed to the magnetic stainless steel sliding ring. A rubber block is arranged on one side outside the metal shielding ring, and the rubber block is fixed to the metal shielding ring. An ultrasonic vibration rod is arranged on one side outside the rubber block, and the ultrasonic vibration rod is fixedly connected to the rubber block; The side frame is arranged on the side of the lower end of the transmission gear ring away from the vertical pipe. The side frame is fixed to the transmission gear ring. A camera and an ultrasonic sensor are installed on one side of the lower end of the side frame, and both the camera and the ultrasonic sensor are fixed to the side frame.

[0007] Preferably, three support frames are arranged outside the mixing blender housing along the circumference and evenly distributed, and the support frames are welded and fixed to the mixing blender housing. The support frames are used to support and fix the mixing blender housing.

[0008] Preferably, an electric valve is arranged at the lower end of the mixing blender housing, and the electric valve is fixed to the discharge port of the mixing blender housing. The electric valve is used to control the discharging of the mixing blender housing. When the mixture is evenly mixed, the electric valve of the mixing blender housing is opened for discharging.

[0009] Preferably, a sleeve is arranged at the lower end of the inner frame and on the upper outside of the stirring rod, and the sleeve is fixed to the inner frame. The sleeve is used to limit the stirring rod. When the stirring rod rises into the sleeve through the electric telescopic rod, the stirring rod is driven to rotate when the sleeve rotates with the inner frame.

[0010] Preferably, the stirring rod is slidably connected to the sleeve, and an electric telescopic rod is arranged at the upper end inside the sleeve. The electric telescopic rod is used to control the lifting of the stirring rod.

[0011] Preferably, the upper end of the electric telescopic rod is fixed to the inner frame, and a steering gear is installed at the lower end of the electric telescopic rod. When the electric telescopic rod drives the steering gear and the stirring rod to move downward, a part of the steering gear extends out of the sleeve, and then the steering gear is started so that the stirring rod at its output end flips to the horizontal direction towards the axis of the inner frame, thereby facilitating the avoidance of the ultrasonic vibration rod.

[0012] Preferably, the upper end of the servo motor is fixedly connected to the lower end of the electric telescopic rod, and the output end of the servo motor is fixedly connected to the upper end of the stirring rod.

[0013] Preferably, a support foot is provided at the lower end of the support frame, and the support foot is fixedly connected to the support frame. The support foot increases the contact area between the support frame and the ground, thereby improving the stability of the mixer housing when placed.

[0014] Preferably, a feed inlet is provided on one side of the upper end of the top cover, and the feed inlet is integrally formed with the top cover. The feed inlet is used to input materials into the mixer housing for subsequent mixing work.

[0015] A method for the ecological utilization of channel dredged mud, based on the above-mentioned equipment for the ecological utilization of channel dredged mud, includes the following steps: Step 1: Input the collected dredged soil into a screening machine, and exclude large hard objects through the screening process; Step 2: Pour the screened material in Step 1 into a chemical reactor for the chemical pretreatment stage, and add an appropriate amount of neutralizing agent to make the whole weakly alkaline, which is beneficial to adsorb harmful substances; Step 3: Place the material processed in Step 2 into a microbial degradation pool, and put in a specially cultivated probiotic group to accelerate the decomposition rate of organic matter and eliminate residual toxins; The probiotic group includes Lactobacillus, Bifidobacterium, Gram-positive cocci, and yeast. The probiotic group can play an important role in the microbial degradation pool, accelerating the decomposition rate of organic matter and eliminating residual toxins, thereby further purifying the material. They help the human body (or the environment here) better process and absorb (or decompose) harmful substances through mechanisms such as producing digestive enzymes, while maintaining the microecological balance; Step 4: Add other auxiliary materials to the product obtained in Step 3, and put them into the mixer housing through the feed inlet together for mixing to obtain an artificial surface covering material that meets the mangrove planting conditions; The other auxiliary materials include soil conditioner, nutrients, water retainer, microbial inoculant, binder, filling material, and pH regulator; Among them, the soil conditioner is used to improve the soil structure, enhance the air permeability, water retention capacity, and fertility of the soil, including organic substances such as humus, compost, and inorganic substances such as gypsum, lime, or compound conditioner; Nutrients provide the nutrient elements required for plant growth, such as nitrogen, phosphorus, potassium, etc., including chemical fertilizers, organic fertilizers, or slow-release fertilizers; The water retainer is used to enhance the water retention capacity of the soil, reduce water evaporation, and improve the survival ability of plants under drought conditions, including high molecular water-absorbing materials, natural water retainers (such as fulvic acid), etc.; Meanwhile, in addition to the probiotic groups mentioned above, other beneficial microbial agents can be added to further promote the activity and ecological balance of soil microorganisms, including nitrogen-fixing bacteria, phosphorus-solubilizing bacteria, potassium-solubilizing bacteria, etc.

[0016] Binders are used to improve the adhesiveness and stability of the mixture and prevent it from loosening or flowing away during the laying process, including inorganic cementitious materials such as cement, lime, and gypsum, or organic binders such as polymer polymers. Filling materials are used to adjust the volume and density of the mixture to make it more in line with the planting requirements, including inorganic materials such as sand, gravel, and slag, or organic materials such as coconut coir and wood chips. pH regulators are used to adjust the acidity and alkalinity of the soil to make it more suitable for the growth of specific plants, including inorganic acid-base regulators such as lime, gypsum, and ferrous sulfate, or organic acid-base regulators (such as humic acid, citric acid, etc.).

[0017] Step Five: Open the electric valve to discharge the material to the upper end of the conveyor belt, and convey the material to the designated location for laying through the conveyor belt.

[0018] In summary, compared with the prior art, the present invention provides a device and method for the ecological utilization of channel dredged mud, which has the following beneficial effects: In this invention, the collected dredged soil is screened, the pH value is adjusted, heavy metal ions are fixed, organic pollutants are decomposed, and then stirred and mixed. Subsequently, it is conveyed to the designated location for laying through the conveyor belt. During the mixing process, when the mixture forms lumps, the lumps are monitored in real time by a camera cooperating with an image processing module and an ultrasonic sensor. So as to control the ultrasonic vibration rod to move to the lump after pausing the stirring work. The high-frequency mechanical vibration generated by the ultrasonic vibration rod directly acts on the lumps in the solid mixture, thereby breaking the bonding force between the particles, making the lumps become loose and broken into smaller particles. The ultrasonic vibration rod can efficiently break the lumps in the solid mixture in a short time, thus solving the problem of lumps, improving work efficiency, and solving the problems raised in the background technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional view of the overall structure of the present invention.

[0020] Figure 2 is a cross-sectional view of the outer shell structure of the stirring mixer of the present invention.

[0021] Figure 3 is of the present invention Figure 2 Partial enlarged view of area A in

[0022] Figure 4 is a cross-sectional view of the internal structure of the casing of the present invention.

[0023] Description of the reference numerals: 1. Screening machine; 2. Chemical reactor; 3. Microbial degradation tank; 4. Stirring mixer housing; 5. Conveyor belt; 6. First drive motor; 7. Inner frame; 8. Sleeve; 9. Electric telescopic rod; 10. Steering gear; 11. Stirring rod; 12. Image processing module; 13. Second drive motor; 14. Driving gear; 15. Driven gear ring; 16. Vertical pipe; 17. Side rail; 18. Third drive motor; 19. Driving screw; 20. Electromagnet; 21. Magnetic stainless steel slip ring; 22. Metal shielding ring; 23. Rubber block; 24. Ultrasonic vibration rod; 25. Support frame; 26. Electric valve; 27. Feed inlet; 28. Side frame; 29. Camera; 30. Ultrasonic sensor; 31. Top cover; 32. Foot. Detailed implementation manner

[0024] The present invention provides a technical solution, a device for ecological utilization of channel dredging mud. Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , including: Screening machine 1, chemical reactor 2, microbial degradation tank 3, stirring mixer and conveyor belt 5; The stirring mixer includes a stirring mixer housing 4. The upper end of the stirring mixer housing 4 is movably provided with a top cover 31. The top cover 31 covers the upper end opening of the stirring mixer housing 4 and is detachably connected to the stirring mixer housing 4 by bolts. At the middle position of the upper end of the top cover 31, a first drive motor 6 is fixedly provided. The output end of the first drive motor 6 is located inside the stirring mixer housing 4 and is fixedly provided with an inner frame 7. Below the inner frame 7, three stirring rods 11 are evenly distributed along a ring. On one side of the upper end of the top cover 31, a second drive motor 13 and an image processing module 12 are fixedly provided. The output end of the second drive motor 13 is installed with a driving gear 14 inside the top cover 31; A driven gear ring 15 is arranged at the upper end inside the top cover 31, and the driven gear ring 15 is rotatably connected to the top cover 31. The driven gear ring 15 is meshed with the driving gear 14; The vertical pipe 16 is fixedly arranged on one side of the lower end of the transmission gear ring 15. A third driving motor 18 is arranged at the upper end inside the vertical pipe 16. The third driving motor 18 is fixed to the transmission gear ring 15. A driving screw 19 is installed at the output end of the third driving motor 18. An electromagnet 20 is threadedly connected to the outside of the driving screw 19. Side rails 17 are arranged on both sides inside the vertical pipe 16. The side rails 17 are fixed to the vertical pipe 16. The electromagnet 20 is slidably connected to the side rails 17. A magnetic stainless-steel sliding ring 21 is arranged outside the vertical pipe 16, and the magnetic stainless-steel sliding ring 21 is slidably connected to the vertical pipe 16. A metal shielding ring 22 is arranged outside the magnetic stainless-steel sliding ring 21, and the metal shielding ring 22 is fixed to the magnetic stainless-steel sliding ring 21. A rubber block 23 is arranged on one side outside the metal shielding ring 22, and the rubber block 23 is fixed to the metal shielding ring 22. An ultrasonic vibrator 24 is arranged on one side outside the rubber block 23, and the ultrasonic vibrator 24 is fixedly connected to the rubber block 23; The side frame 28 is arranged on the side of the lower end of the transmission gear ring 15 away from the vertical pipe 16. The side frame 28 is fixed to the transmission gear ring 15. A camera 29 and an ultrasonic sensor 30 are installed on one side of the lower end of the side frame 28, and both the camera 29 and the ultrasonic sensor 30 are fixed to the side frame 28.

[0025] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 ,Three support frames 25 evenly distributed in a ring are arranged outside the mixing blender housing 4, and the support frames 25 are fixedly welded to the mixing blender housing 4. The support frames 25 are used to support and fix the mixing blender housing 4.

[0026] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 ,An electric valve 26 is arranged at the lower end of the mixing blender housing 4, and the electric valve 26 is fixed to the discharge port of the mixing blender housing 4. The electric valve 26 is used to control the discharging of the mixing blender housing 4. When the mixture is evenly mixed, the electric valve 26 of the mixing blender housing 4 is opened for discharging.

[0027] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 ,A sleeve 8 is arranged at the lower end of the inner frame 7 and located outside the upper end of the stirring rod 11, and the sleeve 8 is fixed to the inner frame 7. The sleeve 8 is used to limit the stirring rod 11. When the stirring rod 11 rises into the inside of the sleeve 8 through the electric telescopic rod 9, the stirring rod 11 is driven to rotate when the sleeve 8 rotates with the inner frame 7.

[0028] Please refer to Figure 1 、 Figure 2 、Figure 3 and Figure 4 The stirring rod 11 is slidably connected to the sleeve 8. An electric telescopic rod 9 is provided at the upper end inside the sleeve 8. The electric telescopic rod 9 is used to control the lifting of the stirring rod 11.

[0029] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 The upper end of the electric telescopic rod 9 is fixed to the inner frame 7. A servo motor 10 is installed at the lower end of the electric telescopic rod 9 and located at the telescopic end of the electric telescopic rod 9. When the electric telescopic rod 9 drives the servo motor 10 and the stirring rod 11 to move downward, a part of the servo motor 10 extends out of the sleeve 8, and then the servo motor 10 is started so that the stirring rod 11 at its output end flips to the horizontal direction towards the axial center part of the inner frame 7, thereby facilitating the avoidance of the ultrasonic vibration rod 24.

[0030] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 The upper end of the servo motor 10 is fixedly connected to the lower end of the electric telescopic rod 9. The output end of the servo motor 10 is fixed to the upper end of the stirring rod 11.

[0031] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 The lower end of the support frame 25 is provided with support feet 32, and the support feet 32 are fixedly connected to the support frame 25. The support feet 32 increase the contact area between the support frame 25 and the ground, thereby improving the stability of the stirring mixer housing 4 when placed.

[0032] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 One side of the upper end of the top cover 31 is provided with a feed inlet 27, and the feed inlet 27 is integrally formed with the top cover 31. The feed inlet 27 is used to input materials into the stirring mixer housing 4, so as to carry out subsequent stirring and mixing work.

[0033] A method for ecological utilization of channel dredged mud, based on the above-mentioned equipment for ecological utilization of channel dredged mud, includes the following steps: Step 1: Input the collected dredged soil into the screening machine 1, and exclude large hard objects through the screening process; Step 2: Pour the screened materials in Step 1 into the chemical reactor 2, carry out the chemical pretreatment stage, and add an appropriate amount of neutralizing agent to make the whole weakly alkaline, which is beneficial to adsorb harmful substances; Step 3: Place the materials processed in Step 2 into the microbial degradation tank 3, add specifically cultured probiotic groups to accelerate the decomposition rate of organic matter and eliminate residual toxins; the probiotic groups include lactic acid bacteria, bifidobacteria, Gram-positive cocci, and yeasts. The probiotic groups can play an important role in the microbial degradation tank. By generating digestive enzymes and other mechanisms, they help the environment better process, absorb, or decompose harmful substances, while maintaining the microecological balance, accelerating the decomposition rate of organic matter, and eliminating residual toxins, thereby further purifying the materials. 1. Reference for strain ratio (mass ratio) Note: The actual ratio is dynamically adjusted according to the types of pollutants in the dredged mud (such as petroleum hydrocarbons / heavy metals / pesticide residues, etc.).

[0034] 2. Culture condition parameters 3. Correlation data of organic pollutant degradation (1) Typical degradation efficiency (laboratory conditions) (2) Synergistic effect data Enzyme activity improvement: The extracellular enzyme activity of the mixed bacterial community is 2.1 - 3.8 times higher than that of a single strain (such as lipase, lignin peroxidase); Toxin tolerance: The composite bacterial community still maintains a degradation activity of more than 75% under the pollution of 100 mg / kg heavy metals (Cd + Pb); Degradation kinetics: The half-life (T1 / 2) of the pollutant is shortened to 1 / 3 - 1 / 2 of that of pure chemical treatment; Step 4: Add other auxiliary materials to the product obtained in Step 3, and jointly put them into the interior of the stirring mixer housing 4 through the feed inlet 27 to be uniformly mixed, obtaining an artificial surface covering material that meets the mangrove planting conditions; The other auxiliary materials include soil conditioners, nutrients, water retainers, microbial agents, adhesives, filling materials, and pH regulators; Among them, the soil conditioner is used to improve the soil structure, enhance the air permeability, water retention capacity, and fertility of the soil, including organic substances such as humus, compost, and inorganic substances such as gypsum, lime, or composite conditioners; Nutrients provide the nutrient elements required for plant growth, such as nitrogen, phosphorus, potassium, etc., including chemical fertilizers, organic fertilizers, or slow-release fertilizers; The water retainer is used to enhance the water retention capacity of the soil, reduce water evaporation, and improve the survival ability of plants under drought conditions, including high-molecular water-absorbing materials, natural water retainers (such as fulvic acid), etc.; Meanwhile, in addition to the probiotic groups mentioned above, other beneficial microbial agents can be added to further promote the activity and ecological balance of soil microorganisms, including nitrogen-fixing bacteria, phosphorus-solubilizing bacteria, potassium-solubilizing bacteria, etc.

[0035] Binders are used to improve the bonding and stability of the mixture and prevent it from loosening or flowing during laying, including inorganic cementitious materials such as cement, lime, and gypsum, or organic binders such as polymer polymers. Filling materials are used to adjust the volume and density of the mixture to make it more in line with planting requirements, including inorganic materials such as sand, gravel, and slag, or organic materials such as coconut coir and wood chips. pH regulators are used to adjust the acidity and alkalinity of the soil to make it more suitable for the growth of specific plants, including inorganic acid-base regulators such as lime, gypsum, and ferrous sulfate, or organic acid-base regulators (such as humic acid, citric acid, etc.).

[0036] Step Five: Open the electric valve 26 to discharge the material to the upper end of the conveyor belt 5, and convey the material to the designated location for laying through the conveyor belt 5. First, the collected dredged soil is input into the screening machine 1. After the screening process to remove large hard objects, it enters the chemical reactor 2 for the chemical pretreatment stage. An appropriate amount of neutralizing agent is added to make the whole weakly alkaline, which is beneficial to adsorb certain types of harmful substances. Subsequently, it is placed in the microbial degradation tank 3, and a specially cultivated probiotic group is put in to accelerate the decomposition rate of organic matter and further eliminate residual toxins. The modified product is then put into the inner part of the stirring mixer housing 4 through the feed inlet 27 together with other auxiliary materials for mixing. During mixing, start the first drive motor 6 to make the inner frame 7 rotate, thereby driving the stirring rod 11 to perform the stirring work. The camera 29 is connected to the image processing module 12 through the network interface. The ultrasonic sensor 30 is connected to the image processing module 12 or an independent controller through an analog or digital interface (such as I2C, SPI). The image processing module 12 (or the controller) is connected to the upper computer or the control system through communication methods such as serial port and Ethernet. The camera 29 real-time collects the mixture image and transmits it to the image processing module 12. The image processing module 12 preprocesses and extracts features from the received image to judge whether there is caking in the material. At the same time, the ultrasonic sensor 30 measures the distance or reflection intensity on the surface of the mixture to provide additional material state information. The image processing module 12 synthesizes the data of image processing and the ultrasonic sensor, makes a final judgment, and sends the result to the upper computer or the control system through the communication interface. The mixture is monitored in real time through the camera 29, the image processing module 12, and the ultrasonic sensor 30. The acquired images are processed using image processing algorithms such as grayscale conversion, binarization, edge detection, and morphological processing to extract the characteristic information of the material. By analyzing the characteristics of the material such as shape, texture, and color, as well as the dynamic changes of the material during the stirring process, it is possible to preliminarily judge whether there is a caking phenomenon. If the material presents an irregular large shape in the image, or the material distribution is uneven and there is an obvious agglomeration phenomenon, it may indicate caking; Example code of the image processing module algorithm and comparison data of the caking recognition effect Example code of the image processing algorithm (Python, using OpenCV) python import cv2 import numpy as np def process_image(image): # Grayscale conversion gray = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY) # Binarization _, binary = cv2.threshold(gray, 127, 255, cv2.THRESH_BINARY) # Edge detection edges = cv2.Canny(binary, 50, 150) # Morphological processing (closing operation, filling small holes) kernel = np.ones((5, 5), np.uint8) closed = cv2.morphologyEx(edges, cv2.MORPH_CLOSE, kernel) # Find contours contours, _ = cv2.findContours(closed, cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE) # Analyze contours and judge caking for contour in contours: area = cv2.contourArea(contour) if area > 1000: # Assume the threshold for the area of a large block is 1000 print("There may be caking") cv2.drawContours(image, [contour], -1, (0, 0, 255), 2) return image # Assume image is a frame captured from the camera # image = cv2.imread('path_to_image') # processed_image = process_image(image) # cv2.imshow('ProcessedImage', processed_image) # cv2.waitKey(0) # cv2.destroyAllWindows() Data comparison table of caking recognition effect Explanation of key indicators 1. Correct recognition rate: Obvious caking: 96.7% (29 / 30) Slight caking: 80.0% (24 / 30) High-noise scenario: 75.0% (15 / 20) 2. False positive rate: Normal material misjudged as caking: 4% (2 / 50) High-noise scenario misjudgment: 25% (5 / 20) 3. Miss rate: Slight caking: 20% (6 / 30) Obvious caking: 3.3% (1 / 30) Real-time performance: Average processing time is 15 - 20 ms / frame, meeting the real-time monitoring requirements (assuming the camera frame rate ≤ 30 fps).

[0037] The ultrasonic sensor 30 emits ultrasonic pulses. These pulses propagate in the material and are reflected when they encounter lumps or other obstacles. Lumps usually reflect stronger ultrasonic signals because they have a larger volume and a more irregular surface. By analyzing the intensity of the reflected signals, the reflections from lumps and the material itself can be distinguished. The ultrasonic sensor 30 can emit ultrasonic pulses of different frequencies. The frequency characteristics of the signals reflected by lumps may be different from those of the reflections of the material itself. By analyzing the frequency characteristics of the reflected signals, the accuracy of identification can be further improved. The sensor receives the ultrasonic signals reflected back and converts them into electrical signals for processing. By analyzing the signal characteristics of the reflected waves, such as wave speed, amplitude, frequency, etc., the internal structure and state of the material can be judged. If there are lumps inside the material, the ultrasonic waves will encounter obstacles during propagation, resulting in changes in the signal characteristics of the reflected waves, such as a decrease in wave speed and an increase in amplitude. By comparing with the ultrasonic signals of normal materials, the presence of lumps can be identified; Fuse and process the data collected by the camera 29 and the ultrasonic sensor 30: First, preprocess the images collected by the camera 29, including grayscale conversion, filtering for noise reduction, edge detection, etc., to extract key feature information of the material, such as shape, texture, color, etc. Process the data collected by the ultrasonic sensor 30, including time gating, signal intensity analysis, frequency analysis, etc., to extract the reflected signal characteristics related to lumps. Since the operating frequencies and data acquisition speeds of the camera 29 and the ultrasonic sensor 30 may be different, it is necessary to synchronize the collected data in time. This can be achieved through hardware triggering or software algorithms to ensure that the data collected by the two sensors correspond to the same time point or time period. Extract the respective feature information from the preprocessed camera 29 images and ultrasonic sensor 30 data; For example, extract features such as the shape and texture of the material from the images, and extract features such as the intensity and frequency of the reflected signals from the ultrasonic data. Fuse the extracted feature information. This can be achieved through the method of feature-level fusion, that is, combining the feature information of the two sensors according to certain rules or algorithms to form a comprehensive feature vector. Based on the fused feature vector, use machine learning, deep learning, or traditional pattern recognition algorithms to make decisions. Post-process the decision results, such as removing noise and smoothing the results, to improve the accuracy and reliability of detection. Optimize the fusion algorithm and decision-making system according to the requirements of the actual application scenario to improve the detection efficiency and performance. Select appropriate algorithms and tools according to actual needs, use the OpenCV library to process camera images, and use programming languages such as MATLAB or Python to implement data fusion and decision-making; To improve the accuracy and reliability of detection, the results of image processing and ultrasonic detection are combined to comprehensively judge the caking situation of the material. The camera 29 and the image processing module 12 collect and analyze the image information of the material, extract the characteristics of the material and judge whether there is caking. The ultrasonic sensor 30 emits and receives ultrasonic signals, analyzes the internal structure and state of the material, and further confirms the existence of caking. The combination of the two technologies can realize the real-time monitoring and accurate judgment of the caking situation of the material inside the stirring mixer. At the same time, control the second drive motor 13 to make the drive gear 14 rotate. The transmission gear ring 15 and the drive gear 14 are driven by meshing to make the transmission gear ring 15 rotate, and then drive the side frame 28 to rotate, increasing the monitoring range and further improving the monitoring accuracy. When caking is detected, stop the first drive motor 6. The electric telescopic rod 9 pushes the steering gear 10 and the stirring rod 11 out of the sleeve 8. Then the steering gear 10 controls the stirring rod 11 to turn upwards to the horizontal direction. Start the third drive motor 18 to make the drive screw 19 rotate. The electromagnet 20 and the drive screw 19 convert the rotational motion of the drive screw 19 into a linear lifting motion of the electromagnet 20 under the thread fit and the sliding connection of the side rail 17. Then, the electromagnet 20 adsorbs the magnetic stainless steel slip ring 21 to drive the ultrasonic vibration rod 24 to lift. The metal shielding ring 22 is a commonly used electromagnetic shielding measure. It is made of conductive materials (such as metals) and can absorb, reflect or guide the energy of the electromagnetic field, thereby weakening or eliminating the influence of the electromagnetic field on the internal circuits and components of the equipment. The metal shielding ring 22 can intercept the electromagnetic field generated by the electromagnet 20 and prevent it from penetrating into the space where the ultrasonic vibration rod 24 is located. The ultrasonic vibration rod 24 can work in a relatively electromagnetic interference-free environment, thus avoiding the damage caused by the electromagnetic field. The electromagnet 20 is powered by a DC power supply, controlled by the controller through a relay or a drive circuit for on / off, and is equipped with a fuse and a reverse diode for protection. Its shell and the metal shielding ring 22 are grounded together to suppress electromagnetic interference. The drive screw 19 is driven by a stepper or servo motor, receives commands through pulse / analog signals, and realizes closed-loop position feedback in combination with an encoder to ensure accurate lifting. The magnetic stainless steel slip ring 21 is adsorbed by the electromagnet as a mechanical connector, and cooperates with the shielding ring to block the influence of the magnetic field on the ultrasonic vibration rod 24. During control, after the user sets the target position, the electromagnet is first energized to adsorb the slip ring. The motor drives the screw to rotate and is converted into a linear motion. The encoder real-time feedbacks the position. After reaching, it maintains adsorption. In case of abnormality, it triggers a shutdown alarm. At the same time, the PWM is used to adjust the electromagnet current to optimize the adsorption force, supplemented by temperature monitoring and physical limit multiple protections, ultimately ensuring the stable operation of the equipment in an electromagnetic interference-free environment. The rubber block 23, being a soft yet tough material, can serve as a buffer and provide protection. In conjunction with the rotation of the transmission gear ring 15, the ultrasonic vibration rod 24 is moved to the caked area. The ultrasonic vibration rod 24 converts electrical energy into high-frequency mechanical vibrations through a transducer. These vibrations propagate in the solid mixture in the form of ultrasonic waves. Ultrasonic waves have characteristics such as high frequency, concentrated energy, and strong penetration, and can generate intense vibrations and energy concentration effects within the solid mixture. The high-frequency mechanical vibrations generated by the ultrasonic vibration rod 24 also directly act on the caked parts in the solid mixture. Such vibrations cause intense relative movement of the particles within the caked parts, thereby breaking the bonding force between the particles. Over time, this vibration effect gradually loosens the caked parts and breaks them into smaller particles. The ultrasonic vibration rod 24 can efficiently break the caked parts in the solid mixture in a short time, improving production efficiency. The propagation of ultrasonic waves in the solid mixture is uniform, thus ensuring that the caked parts can be fully broken at all positions. Subsequently, the ultrasonic vibration rod 24 is turned off and controlled to reset. The servo motor 10 controls the stirring rod 11 to flip downward to a vertical state. The electric telescopic rod 9 raises the servo motor 10 so that the stirring rod 11 is retracted into the sleeve 8. The first drive motor 6 is controlled to rotate the inner frame 7, causing the stirring rod 11 to continue the stirring and mixing operation. After the stirring is completed, the electric valve 26 is controlled to discharge the material to the conveyor belt 5. Finally, an artificial surface covering meeting the mangrove planting conditions is obtained and conveyed to a designated location for laying through the conveyor belt 5. For the equipment at the lower end of the inner frame 7 and the equipment at the lower end of the transmission gear ring 15, the circuit connection is made through an electromagnetic slip ring.

[0038] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0039] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An equipment for the ecological utilization of channel dredging mud, characterized in that, include: Screening machine (1), chemical reactor (2), microbial degradation tank (3), stirring mixer and conveyor belt (5); The stirring mixer comprises a stirring mixer housing (4); a top cover (31) is movably provided at the upper end of the stirring mixer housing (4); a first driving motor (6) is fixedly provided at the middle position of the upper end of the top cover (31); an output end of the first driving motor (6) is located inside the stirring mixer housing (4); an inner frame (7) is fixedly provided; three stirring rods (11) are evenly distributed along a ring shape are provided below the inner frame (7); a second driving motor (13) and an image processing module (12) are fixedly provided at one side of the upper end of the top cover (31); an output end of the second driving motor (13) is located inside the top cover (31); and a driving gear (14) is installed; A transmission gear ring (15) is disposed at the inner upper end of the top cover (31), and the transmission gear ring (15) is rotationally connected to the top cover (31), and the transmission gear ring (15) is meshingly connected to the driving gear (14); A vertical tube (16) is fixedly arranged on one side of the lower end of the transmission gear ring (15); a third driving motor (18) is arranged on the upper end of the vertical tube (16); the third driving motor (18) is fixed to the transmission gear ring (15); a driving screw (19) is installed on the output end of the third driving motor (18); an electromagnet (20) is connected to the external thread of the driving screw (19); side rails (17) are arranged on both sides of the vertical tube (16); the side rails (17) are fixed to the vertical tube (16); the electromagnet (20) is slidably connected to the side rails (17); the vertical tube (16) 6) is provided with a magnetic stainless steel slip ring (21) on the outside, and the magnetic stainless steel slip ring (21) is slidably connected to the vertical pipe (16); a metal shielding ring (22) is provided on the outside of the magnetic stainless steel slip ring (21), and the metal shielding ring (22) is fixed to the magnetic stainless steel slip ring (21); a rubber block (23) is provided on one side of the outside of the metal shielding ring (22), and the rubber block (23) is fixed to the metal shielding ring (22); an ultrasonic vibration rod (24) is provided on one side of the outside of the rubber block (23), and the ultrasonic vibration rod (24) is fixedly connected to the rubber block (23); A side frame (28) is arranged on a side of the lower end of the transmission gear ring (15) away from the vertical pipe (16), the side frame (28) is fixed to the transmission gear ring (15), a camera (29) and an ultrasonic sensor (30) are installed on one side of the lower end of the side frame (28), and the camera (29) and the ultrasonic sensor (30) are both fixed to the side frame (28).

2. The device for ecological utilization of channel dredging mud according to claim 1, characterized in that: Three support frames (25) evenly distributed along a ring shape are arranged outside the stirring mixer housing (4), and the support frames (25) are fixed to the stirring mixer housing (4) by welding.

3. The device for ecological utilization of channel dredging mud according to claim 2, characterized in that: An electric valve (26) is provided at the lower end of the stirring mixer housing (4), and the electric valve (26) is fixed to the discharge port of the stirring mixer housing (4).

4. The equipment for ecological utilization of channel dredging mud according to claim 3, characterized in that: A casing (8) is provided at the outer upper end of the lower end of the inner frame (7), and the casing (8) is fixed to the inner frame (7).

5. The device for ecological utilization of channel dredging mud according to claim 4, characterized in that: The stirring rod (11) is slidably connected to the casing (8), and an electric telescopic rod (9) is provided at the upper end inside the casing (8).

6. The equipment for ecological utilization of waterway dredging mud according to claim 5, characterized in that: The upper end of the electric telescopic rod (9) is fixed to the inner frame (7), and a steering gear (10) is installed at the lower end of the electric telescopic rod (9).

7. The device for ecological utilization of channel dredging mud according to claim 6, characterized in that: The upper end of the steering gear (10) is fixedly connected to the lower end of the electric telescopic rod (9), and the output end of the steering gear (10) is fixed to the upper end of the stirring rod (11).

8. The equipment for ecological utilization of channel dredging mud according to claim 7, characterized in that: Support feet (32) are provided at the lower end of the support frame (25), and the support feet (32) are fixedly connected to the support frame (25).

9. The equipment for ecological utilization of channel dredging mud according to claim 8, characterized in that: A feed inlet (27) is provided on one side of the upper end of the top cover (31), and the feed inlet (27) is integrally formed with the top cover (31).

10. A method for the ecological utilization of channel dredged mud, comprising the equipment for the ecological utilization of channel dredged mud according to any one of claims 1-9, characterized in that, It includes the following steps: Step 1: Input the collected dredged soil into the screening machine (1), and exclude large hard objects through the screening process; Step 2: Pour the screened material in Step 1 into the chemical reactor (2) for the chemical pretreatment stage, and add a neutralizing agent to make the whole weakly alkaline, which is beneficial to adsorb harmful substances; Step 3: Place the material processed in Step 2 into the microbial degradation pool (3), put in a specially cultivated probiotic group to accelerate the decomposition speed of organic matter and eliminate residual toxins; Step 4: Add other auxiliary materials to the product obtained in Step 3, and put them into the inner part of the stirring mixer housing (4) through the feed inlet (27) together for mixing to obtain an artificial surface covering material that meets the mangrove planting conditions; Step 5: Open the electric valve (26) to discharge the material to the upper end of the conveyor belt (5), and transport the material to a designated location for laying through the conveyor belt (5).

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