Ecological restoration device for riverway and use method of ecological restoration device

Abstract

The invention belongs to the technical field of water pollution treatment, and particularly relates to an ecological restoration device for a river channel and a using method thereof.The ecological restoration device comprises a supporting plate, an electric control power storage assembly is fixedly installed on the supporting plate, and two electric push rods are symmetrically and fixedly inserted into the supporting plate in a sleeving mode; and the moving ends of the lower ends of the two electric push rods are fixedly connected with the same mounting frame, and the mounting frame is rotationally connected with a fungicide spraying assembly located in the middle and aeration oxygen supply assemblies located on the two sides. The method is adaptive to the ecological restoration requirements of the riverway in the freezing period in the alpine region, the bactericide adding frequency is intelligently regulated and controlled through the water temperature and the water flow velocity, the action range of the bactericide is expanded through rotary adding, low-oxygen pollution is cracked by combining rotary aeration, the bactericide activity is guaranteed, harmful bacterium reproduction is inhibited, and ecological restoration of the riverway in the freezing period in the alpine region is achieved. And rapid drilling on the ice surface, real-time monitoring of retraction and daily maintenance of self-rotation force are synchronously achieved, and it is ensured that a repair channel is smooth and the repair effect is stable and efficient.

Description

Technical Field

[0001] This invention belongs to the field of water pollution control technology, and in particular relates to an ecological restoration device for rivers and its usage method. Background Technology

[0002] The core objective of river ecological restoration is to restore the complete ecological functions of rivers, improve water quality, ensure water security, and ultimately achieve a synergistic balance between ecological protection and the needs of human production and life. Currently, ecological restoration work is mostly focused on rivers under conventional operating conditions, while proactive restoration of rivers in high-altitude and cold regions during the ice-covered period is often overlooked. In these areas, the ice-covered period typically lasts for 3-6 months, during which the ice completely isolates the exchange of substances between the atmosphere and the water body. Furthermore, underwater sunlight is extremely scarce. Coupled with previous human impacts such as artificial hardening and siltation, key overwintering habitats such as shallows and aquatic plant areas in natural river channels continue to shrink, and the ecosystem faces multiple risks of degradation.

[0003] If targeted restoration of the river channel is not carried out during the ice-covered period, it will trigger a series of chain problems:

[0004] On the one hand, dissolved oxygen in the water under the ice layer will continue to decrease, the habitat of benthic organisms (such as cold-resistant chironomid larvae and oligochaetes) will be occupied by silt and sediment, and the overwintering migration channels of fish will also be blocked by ice and freezing, resulting in a significant decrease in the overwintering survival rate of aquatic organisms, and even causing the extinction of local populations, directly destroying the foundation for the recovery of river biological communities in the following year.

[0005] On the other hand, during the ice-covered period, the flow of water in the river is almost stagnant, and the low temperature environment further inhibits the activity of microorganisms, causing the water body to lose its self-purification ability. The bottom sediment will undergo a series of biochemical transformations under anaerobic conditions: the accumulated organic pollutants will decompose anaerobically, releasing harmful substances such as ammonia nitrogen and hydrogen sulfide; the adsorbed phosphorus and heavy metals will desorb in the reducing environment and re-enter the overlying water body, forming the hidden pollution unique to the ice-covered period. Summary of the Invention

[0006] The purpose of this invention is to address the above-mentioned problems by providing an ecological restoration device for river channels and its usage method.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: an ecological restoration device for river channels, comprising a support plate, an electrically controlled energy storage component fixedly mounted on the support plate, two electric push rods symmetrically fixedly inserted on the support plate, the lower moving ends of the two electric push rods fixedly connected to the same mounting frame, a microbial agent spraying component located in the middle and an aeration and oxygen supply component located on both sides rotatably connected to the mounting frame, a drill bit fixedly connected to the bottom end of both the microbial agent spraying component and the aeration and oxygen supply component, multiple sets of rotary drive components installed inside the mounting frame, the rotary drive components driving the microbial agent spraying component and the aeration and oxygen supply component to rotate, and efficiently drilling holes on the ice surface through the drill bit, anti-retraction hole components fixedly mounted on the upper outer side of both the microbial agent spraying component and the aeration and oxygen supply component, set in the hole drilled by the drill bit on the ice surface to prevent the drill hole from retracting.

[0008] In the above-mentioned ecological restoration device for river channels, the microbial agent spraying assembly includes a rotating cylinder rotatably mounted on the mounting frame. Multiple spray discs are integrally connected to the lower outer side of the rotating cylinder, and multiple spray heads are integrally connected at equal intervals to the outer side of each spray disc. A feed pipe is rotatably connected to the upper end of the rotating cylinder via a rotary sealing joint. A feed pump is mounted on the feed pipe and is fixedly mounted on the mounting frame. A storage box is also fixedly mounted on the support plate. The upper end of the feed pipe penetrates the support plate and is connected to one side of the storage box. The lower end of the rotating cylinder is fixedly connected to a drill bit, and the rotating cylinder and the drill bit are coaxially arranged.

[0009] In the above-mentioned ecological restoration device for river channels, the aeration and oxygen supply component includes a rotating cylinder II rotatably mounted on the mounting frame. Multiple aeration discs are integrally connected to the outer side of the lower end of the rotating cylinder II. Multiple aeration heads are integrally connected to the outer side of the aeration discs at equal intervals. An aeration pipe is rotatably connected to the upper end of the rotating cylinder II through a rotary sealing joint II. An aerator is installed on the aeration pipe. The aerator is fixedly mounted on the mounting frame. The lower end of the rotating cylinder II is fixedly connected to a drill bit, and the rotating cylinder II and the drill bit are coaxially arranged.

[0010] In the above-mentioned ecological restoration device for river channels, the rotary drive assembly includes a motor fixedly installed inside the mounting frame, a drive gear fixedly connected to the upper output end of the motor, and driven gears meshing with the drive gears fixedly sleeved on the walls of both the first and second rotating drums.

[0011] In the above-mentioned ecological restoration device for river channels, the anti-shrinkage hole assembly includes an anti-shrinkage cylinder fixedly connected to the outer side of the upper end of rotating cylinder one and rotating cylinder two. Multiple annularly distributed arc-shaped contact plates are uniformly arranged on the outer side of the anti-shrinkage cylinder. A pressure sensor is fixedly installed between the arc-shaped contact plates and the anti-shrinkage cylinder. An electric heating wire is installed inside the arc-shaped contact plate.

[0012] In the above-mentioned ecological restoration device for rivers, a temperature sensor and a flow velocity sensor are symmetrically fixedly connected to the lower end wall of the rotating drum to monitor the water temperature and flow velocity of the river in real time. The electronically controlled energy storage component makes the water temperature fed back by the temperature sensor negatively correlated with the working frequency of the microbial agent spraying component, and the electronically controlled energy storage component makes the water flow velocity fed back by the flow velocity sensor positively correlated with the working frequency of the microbial agent spraying component.

[0013] In the above-mentioned ecological restoration device for river channels, a dissolved oxygen sensor is fixedly connected to the lower end wall of the rotating drum II, and the electronically controlled energy storage component makes the dissolved oxygen level fed back by the dissolved oxygen sensor negatively correlated with the working power of the aeration and oxygen supply component.

[0014] In the above-mentioned ecological restoration device for river channels, two support rods are fixedly connected to the lower sides of both ends of the support plate, and the lower ends of the two support rods are fixedly connected to the same base plate. Multiple positioning pins are evenly fixedly connected to the lower end of the base plate.

[0015] A method for using an ecological restoration device for river channels includes the following steps:

[0016] S1. The entire device is fixed in the installation position by the cooperation of the support rod and the base plate;

[0017] S2. The electronically controlled energy storage component controls the rotary drive component to drive the microbial agent spraying component and the aeration and oxygen supply component to rotate, which in turn drives the drill bit at the lower end to rotate. The electronically controlled energy storage component synchronously controls the electric push rod to push the drill bit down, so as to carry out rapid drilling work on the ice surface.

[0018] S3. The electric push rod continues to move the bacterial agent spraying component and the aeration and oxygen supply component below the water surface. The bacterial agent spraying component is used to add the repair bacterial agent, and the aeration and oxygen supply component is used to perform aeration and oxygen supply.

[0019] S4. The anti-shrinkage hole assembly is placed inside the borehole. The rotating drive assembly works together to remove the ice that has re-frozen on the borehole wall, ensuring the stability of the borehole.

[0020] Compared with existing technologies, the advantages of this invention are as follows:

[0021] 1. With the addition of a microbial agent spraying component and a rotating drive component, it is suitable for the addition of microbial agents for the ecological restoration of rivers during the ice-covered period in high-altitude and cold regions. The frequency of microbial agent addition is automatically adjusted based on the river water temperature and flow velocity to ensure the restoration effect. Furthermore, the rotation causes the microbial agent to be distributed downward in a spiral shape, breaking through the limitation of static addition in a vertical column shape and effectively expanding the range of action of the microbial agent.

[0022] 2. Through the set aeration and oxygen supply components and rotary drive components, it can effectively solve the pollution problems caused by the interruption of river oxygen supply and the significant reduction of dissolved oxygen in the water due to ice layer isolation. It can also create a suitable oxygen environment for the added bacterial agents, preventing them from dying rapidly due to lack of oxygen, and inhibiting the reproduction of harmful bacteria. The rotary aeration mode improves oxygen mass transfer efficiency and further optimizes the aeration effect.

[0023] 3. With the set drill bit and anti-shrinkage hole component, it can quickly drill inspection holes on the ice surface to assist in river ecological restoration work. At the same time, it can monitor the hole shrinkage status in real time, carry out hole enlargement operations in a timely manner, ensure the continuous, stable and smooth flow of the hole, and complete the daily maintenance of the hole by using the rotation force generated by the addition of microbial agents and aeration operations. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural schematic diagram of an ecological restoration device for river channels provided by the present invention;

[0025] Figure 2 This is a three-dimensional structural diagram of the support plate, support rod, base plate and positioning pins of an ecological restoration device for river channels provided by the present invention.

[0026] Figure 3 This is a three-dimensional structural schematic diagram of a microbial agent spraying component for an ecological restoration device for rivers provided by the present invention;

[0027] Figure 4 This is a three-dimensional structural schematic diagram of an aeration and oxygen supply component for an ecological restoration device for rivers provided by the present invention.

[0028] Figure 5 This is a three-dimensional structural schematic diagram of the anti-shrinkage hole component of an ecological restoration device for river channels provided by the present invention;

[0029] Figure 6 This is a three-dimensional structural diagram of the rotary drive component of an ecological restoration device for river channels provided by the present invention.

[0030] In the diagram: 1. Support plate, 2. Electrically controlled energy storage assembly, 3. Electric push rod, 4. Mounting frame, 5. Microbial agent spraying assembly, 51. Rotary drum I, 52. Spraying disc, 53. Spray head, 54. Rotary sealing joint I, 55. Feed pipe, 56. Feed pump, 57. Storage box, 58. Temperature sensor, 59. Flow rate sensor, 6. Aeration and oxygen supply assembly, 61. Rotary drum II, 62. Aeration disc, 63. Aeration head, 64. Rotary sealing joint II, 65. Aeration pipe, 66. Aerator, 67. Dissolved oxygen sensor, 7. Drill bit, 8. Rotary drive assembly, 81. Motor, 82. Drive gear, 83. Driven gear, 9. Anti-shrinkage hole assembly, 91. Anti-shrinkage cylinder, 92. Arc-shaped contact plate, 93. Pressure sensor, 10. Support rod, 11. Base plate, 12. Positioning pin. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0032] like Figures 1-6 As shown, an ecological restoration device for river channels includes a support plate 1. An electrically controlled energy storage assembly 2 is fixedly mounted on the support plate 1. Two electric push rods 3 are symmetrically fixedly inserted into the support plate 1. The lower moving ends of the two electric push rods 3 are fixedly connected to the same mounting frame 4. A microbial agent spraying assembly 5 located in the middle and an aeration and oxygen supply assembly 6 located on both sides are rotatably connected to the mounting frame 4. Drill bits 7 are fixedly connected to the bottom ends of both the microbial agent spraying assembly 5 and the aeration and oxygen supply assembly 6. Multiple sets of rotary drive assemblies 8 are installed inside the mounting frame 4. The rotary drive assemblies 8 drive the microbial agent spraying assembly 5 and the aeration and oxygen supply assembly 6 to rotate, and efficiently drill holes in the ice surface through the drill bits 7. The upper ends of the microbial agent spraying assembly 5 and the aeration and oxygen supply assembly 6 are externally connected to the mounting frame 4. Anti-shrinkage hole components 9 are fixedly installed on both sides, and are set in the holes drilled by the drill bit 7 on the ice surface to prevent the drill hole from shrinking back. The rotation drive component 8 drives the bacterial agent spraying component 5 and the aeration and oxygen supply component 6 to rotate, thereby driving the drill bit 7 to rotate. With the downward thrust provided by the electric push rod 3, the drill bit 7 acts on the ice surface and quickly drills a detection hole on the ice surface, thereby moving the bacterial agent spraying component 5 and the aeration and oxygen supply component 6 to the water surface to carry out river ecological restoration work, and to add bacterial agents and perform aeration and oxygen supply operations for the river. Two support rods 10 are fixedly connected to the lower sides of both ends of the support plate 1. The lower ends of the two support rods 10 are fixedly connected to the same base plate 11. Multiple positioning pins 12 are evenly fixedly connected to the lower end of the base plate 11.

[0033] As one embodiment of the present invention, refer to Figure 1 and Figure 3 The microbial agent spraying assembly 5 includes a rotating drum 51 rotatably mounted on the mounting frame 4. Multiple spray discs 52 are integrally connected to the lower outer side of the rotating drum 51. Multiple spray heads 53 are integrally connected to the outer side of the spray discs 52 at equal intervals. A feed pipe 55 is rotatably connected to the upper end of the rotating drum 51 via a rotary sealing joint 54, ensuring that the rotation of the rotating drum 51, driven by the rotary drive assembly 8, does not affect the stable delivery of the repair microbial agent through the feed pipe 55. A feed pump 56 is fixedly installed on the feed pipe 55. On the mounting frame 4, a storage box 57 is also fixedly installed on the support plate 1. A liquid level sensor is also installed on the storage box 57 to monitor the storage amount of bacterial agent in the storage box 57 in real time. When the storage amount of bacterial agent is lower than the threshold, the electronically controlled energy storage component 2 will promptly send a signal to the staff to remind them to replenish the bacterial agent. The upper end of the feed pipe 55 passes through the support plate 1 and is connected to one side of the storage box 57. The lower end of the rotating drum 51 is fixedly connected to the drill bit 7, and the rotating drum 51 and the drill bit 7 are coaxially arranged.

[0034] Under the above conditions, the bacterial agent can be selected from low-temperature resistant denitrifying bacteria, which can complete nitrification-denitrification of ammonia nitrogen and nitrate nitrogen released from bottom sediment during the ice-bound period in a low-temperature and low-oxygen environment, reducing the risk of eutrophication and avoiding nitrogen pulse pollution during the ice-melting period; low-temperature resistant organic pollutant degrading bacteria can be selected to degrade small molecule organic matter (such as humic acid, volatile fatty acids), trace petroleum hydrocarbons and organochlorine residues produced by anaerobic decomposition of bottom sediment during the ice-bound period, reducing the accumulation of black and odorous substances; low-temperature resistant sulfate-reducing bacteria can be selected to convert excess sulfate in the water into sulfides in an anaerobic environment, and then combine with iron ions in the water to form iron sulfide precipitates, reducing the toxicity of hydrogen sulfide, while also assisting in the degradation of sulfur-containing organic pollutants;

[0035] When microbial agent addition is required, the feed pump 56, in conjunction with the feed pipe 55, transports the microbial agent stored in the storage box 57 to the rotating drum 51. Then, the microbial agent is added to the river channel through the spray plate 52 and the spray head 53. During the addition process, the rotating drive component 8 drives the rotating drum 51 to rotate, causing the microbial agent to be distributed downwards in a spiral shape, breaking through the vertical columnar limitation of static addition and expanding the coverage area by more than 3 times. The rotation causes the microbial agent to fully contact the surface of the bottom sediment, increasing the colonization rate of live bacteria in the bottom sediment by 50%, which is especially suitable for degrading organic pollutants and nitrogen and phosphorus nutrients in the bottom sediment. The weak eddies generated by the rotation slow down the sinking speed of the microbial agent, extending the effective action time in the water (from 6-8 hours to 12-15 hours), and improving the utilization rate of the microbial agent.

[0036] As one embodiment of the present invention, refer to Figure 1 and Figure 4 The aeration and oxygen supply component 6 includes a rotating cylinder 61 rotatably mounted on the mounting frame 4. Multiple aeration discs 62 are integrally connected to the outer side of the lower end of the rotating cylinder 61. Multiple aeration heads 63 are integrally connected to the outer side of the aeration discs 62 at equal intervals. An aeration pipe 65 is rotatably connected to the upper end of the rotating cylinder 61 through a rotary sealing joint 64. An aerator 66 is mounted on the aeration pipe 65. The aerator 66 is fixedly mounted on the mounting frame 4. The lower end of the rotating cylinder 61 is fixedly connected to the drill bit 7, and the rotating cylinder 61 and the drill bit 7 are coaxially arranged.

[0037] Under the above conditions, the aeration and oxygen supply component 6 adopts an intermittent mode of "2 hours of aeration + 4 hours of shutdown," which saves energy and maintains the dissolved oxygen environment required for bacterial activity. The aerator 66, together with the aeration pipe 65, delivers air to the rotating drum 61, and then performs efficient aeration through the aeration disc 62 and aeration head 63. During aeration, the rotating drive component 8 drives the rotating drum 61 to rotate, which in turn drives the aeration disc 62 to rotate. The diameter of the bubbles generated by the rotating aeration disc 62 is reduced from the conventional 2-5mm to 0.5-1mm, the specific surface area increases by 4 times, the oxygen mass transfer efficiency is improved by 30-50%, and a stable circulation of 0.3-0.5m / s can be formed, breaking the water stratification under the ice layer, making the dissolved oxygen evenly distributed, and eliminating the dead zone of oxygen deficiency. The rising water flow formed by the rotation carries the bottom nutrient water to the middle and upper layers, promoting the degradation of organic matter by microorganisms, and at the same time transferring the surface dissolved oxygen to the bottom sediment interface.

[0038] Aeration and oxygen supply replenish dissolved oxygen in the river channel, which can significantly reduce the anaerobic respiration rate of the bottom sediment, reduce phosphorus and ammonia nitrogen release, cut off the release path of endogenous pollution at the source, and provide a suitable oxygen environment for the added microbial agents, preventing the added microbial agents from rapidly dying due to lack of oxygen, effectively improving the colonization rate of the microbial community, and ensuring that the core functions such as denitrification and organic matter degradation continue to be performed.

[0039] As one embodiment of the present invention, refer to Figure 1 and Figure 6 The rotary drive assembly 8 includes a motor 81 fixedly installed inside the mounting frame 4. The upper output end of the motor 81 is fixedly connected to a drive gear 82. The cylinder walls of the first rotating drum 51 and the second rotating drum 61 are both fixedly sleeved with driven gears 83 that mesh with the drive gear 82.

[0040] Under the above-mentioned conditions, the motor 81 starts under the electric power supply of the electric storage component 2. The motor 81 drives the drive gear 82 to rotate. Through the meshing of the drive gear 82 and the driven gear 83, the first rotating drum 51 and the second rotating drum 61 are driven to rotate. This not only provides rotational power for drilling by the drill bit 7, but also enables the addition of microbial agents and aeration oxygen supply to be carried out more efficiently. It can also provide hole-expanding power for the anti-shrinkage component 9.

[0041] As one embodiment of the present invention, refer to Figure 1 and Figure 5 The anti-shrinkage assembly 9 includes an anti-shrinkage cylinder 91 fixedly connected to the outer side of the upper end of the first rotating cylinder 51 and the second rotating cylinder 61. Multiple annularly distributed arc-shaped contact plates 92 are evenly arranged on the outer side of the anti-shrinkage cylinder 91. A pressure sensor 93 is fixedly installed between the arc-shaped contact plates 92 and the anti-shrinkage cylinder 91. An electric heating wire is installed inside the arc-shaped contact plate 92. When the electric heating wire is energized, the temperature of the arc-shaped contact plate 92 increases, thereby improving the hole expansion efficiency and reducing the hole expansion resistance.

[0042] Under the above-mentioned conditions, when the microbial agent spraying component 5 and the aeration and oxygen supply component 6 move into the river channel to work, the anti-shrinkage hole component 9 also moves into the drilled detection hole. The outer diameter of the anti-shrinkage hole component 9 is equal to the inner diameter of the detection hole, so that the arc-shaped contact plate 92 is exactly located in the detection hole. When the rotation drive component 8 drives the microbial agent spraying component 5 and the aeration and oxygen supply component 6 to rotate to improve the effect of microbial agent addition and aeration and oxygen supply, it simultaneously drives the anti-shrinkage hole component 9 to rotate, thereby causing the arc-shaped contact plate 92 to rub against the inner wall of the detection hole, maintaining the aperture of the detection hole, and preventing the air / water in the hole from exchanging heat with the low temperature environment outside after drilling in the frozen river channel. The ice on the hole wall will cool down again due to the temperature rising (the drill bit 7 generates heat during drilling), which will cause the ice to recrystallize, resulting in the shrinkage of the aperture.

[0043] When the detection hole narrows while the microbial agent spraying component 5 and the aeration and oxygen supply component 6 are not in operation, the hole wall will exert pressure on the arc-shaped contact plate 92, which in turn will exert a compressive force on the pressure sensor 93. When this compressive force reaches the threshold set by the pressure sensor 93, the electronically controlled energy storage component 2 will actively control the corresponding rotary drive component 8 to perform active hole expansion. The output end of the motor 81 in the rotary drive component 8 is equipped with a torque sensor. When the detection hole narrows significantly, the arc-shaped contact plate 92 will exert a large compressive force, resulting in an excessive load on the hole expansion operation. When the torque signal fed back by the torque sensor at the output end of the motor 81 exceeds the set threshold, the electronically controlled energy storage component 2 will control the electric heating wire in the arc-shaped contact plate 92 to work, so that the arc-shaped contact plate 92 will heat up and better melt the ice crystals in the hole wall of the detection hole, thereby improving the efficiency of the hole expansion operation.

[0044] As one embodiment of the present invention, refer to Figure 3 Temperature sensor 58 and flow velocity sensor 59 are symmetrically fixedly connected to the lower end of the rotating drum 51 to monitor the water temperature and flow velocity of the river in real time. The electric control energy storage component 2 makes the water temperature fed back by temperature sensor 58 negatively correlated with the working frequency of bacterial agent spraying component 5, and the electric control energy storage component 2 makes the water flow velocity fed back by flow velocity sensor 59 positively correlated with the working frequency of bacterial agent spraying component 5.

[0045] Under the above conditions, when the temperature sensor 58 detects a lower river water temperature, the rate of bacterial agent activity decay accelerates, requiring an increase in the dosing frequency. Similarly, when the flow velocity sensor 59 detects a faster river flow, the dosing frequency should be increased to prevent excessively rapid dissipation of the bacterial agent, which could affect the quality of the remediation. Furthermore, the bacterial agent should be added in small, frequent doses daily. The low temperatures during the high-altitude, ice-bound period significantly reduce the metabolic and reproductive rates of cold-resistant bacteria, and the nutrients in the water beneath the ice layer are limited. If a large dose of bacterial agent is added at once, the initial high bacterial density will trigger intraspecific competition, causing a large number of bacteria to die off rapidly due to lack of nutrients or an unsuitable oxygen environment. Later, without a replenishment of live bacteria, the concentration of bacteria in the water will plummet, making it impossible to maintain degradation capacity. Adding small, frequent doses daily continuously replenishes the water with fresh live bacteria, precisely maintaining the "effective concentration threshold" of the bacterial community, while avoiding excessive competition among the bacteria. This allows cold-resistant bacteria to steadily establish a population advantage, ensuring the pollutant degradation efficiency throughout the ice-bound period.

[0046] As one embodiment of the present invention, refer to Figure 4 A dissolved oxygen sensor 67 is fixedly connected to the lower end wall of the rotating drum 61. The electric storage component 2 makes the dissolved oxygen level fed back by the dissolved oxygen sensor 67 negatively correlated with the working power of the aeration and oxygen supply component 6.

[0047] Under the above settings, the dissolved oxygen sensor 67 monitors the dissolved oxygen level of the river in real time. When the dissolved oxygen level of the river is higher, the working power of the aerator 66 is lower, thus reducing the oxygen supply. Conversely, when the dissolved oxygen level of the river is lower, the working power of the aerator 66 is higher, thus increasing the oxygen supply.

[0048] The operating principle of the present invention is described as follows: The entire device is placed at the location in the river where ecological restoration is needed. Depending on the width of the river, the device can be fixed on both sides of the river, or placed directly on the ice surface if the ice thickness allows.

[0049] The support rod 10, together with the base plate 11, supports the entire device. The positioning pins 12 at the bottom of the base plate 11 are fixed to the mounting base. After the device is fixed, the electric control energy storage component 2 controls the operation of multiple sets of rotary drive components 8 and electric push rods 3. The motor 81 drives the drive gear 82 to rotate. Through the meshing of the drive gear 82 and the driven gear 83, the first rotating drum 51 and the second rotating drum 61 rotate, thereby driving the drill bit 7 to rotate. The electric push rod 3 pushes the mounting frame 4 to move down, thereby driving the drill bit 7 to move down, so that the drill bit 7 contacts the ice surface to perform drilling. When the drill bit 7 drills through the ice surface, as the electric push rod 3 continues to push, the bacterial agent spraying component 5 and the aeration oxygen supply component 6 also enter the river channel below the ice surface until the electric push rod 3 pushes the mounting frame 4 to move to the maximum stroke. At this time, the anti-shrinkage hole component 9 moves into the drilled hole.

[0050] The electric storage component 2 controls the operation of the microbial agent spraying component 5, adding the repair microbial agent into the river. The feed pump 56, in conjunction with the feed pipe 55, transports the repair microbial agent stored in the storage box 57 to the rotating drum 51, and then into the spraying disc 52 connected to the rotating drum 51. The microbial agent is evenly added through multiple spray heads 53 connected to the side wall of the spraying disc 52. During the addition of the microbial agent, the rotation drive component 8 connected to the microbial agent spraying component 5 also works synchronously, driving the rotating drum 51 to rotate. The rotation causes the repair microbial agent to be distributed downward in a spiral shape, breaking through the vertical columnar limitation of static addition and effectively expanding the effective range of the microbial agent. In addition, the temperature sensor 58 and the flow rate sensor 59 connected to the rotating drum 51 monitor the temperature and flow rate of the river water in real time. The lower the water temperature, the higher the operating frequency of the microbial agent spraying component 5 controlled by the electric storage component 2; the faster the water flow rate, the higher the operating frequency of the microbial agent spraying component 5 controlled by the electric storage component 2.

[0051] Every 4 hours, the electric storage component 2 controls the aeration and oxygen supply component 6 to work for 2 hours. The aerator 66, together with the aeration pipe 65, supplies air to the rotating drum 61. The air is then supplied through multiple aeration heads 63 on the aeration disc 62. Similarly, during the aeration and oxygen supply process, the rotation drive component 8 drives the rotating drum 61 to rotate. The diameter of the bubbles generated by the rotating aeration disc 62 is reduced from the conventional 2-5mm to 0.5-1mm, the specific surface area is increased by 4 times, and the oxygen mass transfer efficiency is improved by 30-50%. The dissolved oxygen sensor 67 connected to the rotating drum 61 monitors the dissolved oxygen content in the river water in real time. The lower the dissolved oxygen content, the higher the working power of the aerator 66 during the aeration and oxygen supply process, and the greater the oxygen supply.

[0052] Each time the agent spraying component 5 and the aeration and oxygen supply component 6 rotate, the rotating drum 1 51 and the rotating drum 2 61 synchronously drive the anti-shrinkage hole component 9 to rotate and rub inside the borehole, cleaning the re-frozen portion of the ice inside the borehole wall and causing the anti-shrinkage borehole to shrink back. When the borehole shrinks back when the agent spraying and aeration and oxygen supply are not in progress, the shrunken borehole wall will press against the arc-shaped contact plate 92 outside the anti-shrinkage cylinder 91, which in turn presses against the pressure sensor 93. The electronically controlled energy storage component 2 receives the signal from the pressure sensor 93 and controls the rotation drive component 8 to drive the rotating drum 1 51 or the rotating drum 2 61 at the corresponding position to rotate, driving the anti-shrinkage cylinder 91 to drive the arc-shaped contact plate 92 to rotate, quickly cleaning the ice that has shrunk back on the borehole wall and ensuring the continuous existence of the borehole.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An ecological restoration device for river course, comprising a support plate (1), an electric control and power storage assembly (2) is fixedly arranged on the support plate (1), characterized in that, Two electric push rods (3) are symmetrically fixed on the support plate (1), the lower ends of the two electric push rods (3) are fixedly connected with the same mounting frame (4), the mounting frame (4) is rotatably connected with the middle bacterial agent spraying assembly (5) and the two side aeration oxygen supply assemblies (6), the bottom ends of the bacterial agent spraying assembly (5) and the aeration oxygen supply assemblies (6) are fixedly connected with drill bits (7), a plurality of rotating drive assemblies (8) are arranged in the mounting frame (4), the rotating drive assemblies (8) drive the bacterial agent spraying assembly (5) and the aeration oxygen supply assemblies (6) to rotate, and the drill bits (7) are used for high-efficiency drilling on the ice surface, the upper ends of the outer sides of the bacterial agent spraying assembly (5) and the aeration oxygen supply assemblies (6) are fixedly arranged with anti-shrinkage hole assemblies (9) arranged in the holes drilled by the drill bits (7) on the ice surface, and the anti-shrinkage hole assemblies (9) prevent the holes from shrinking.

2. The ecological restoration device for river course according to claim 1, wherein The bacterial agent spraying assembly (5) comprises a rotating cylinder I (51) rotatably arranged on the mounting frame (4), a plurality of spraying discs (52) are integrally connected on the outer side of the lower end of the rotating cylinder I (51), a plurality of spraying heads (53) are integrally connected on the outer side of the spraying disc (52) at equal intervals, a feeding pipe (55) is rotatably connected to the upper end of the rotating cylinder I (51) through a rotary sealing joint I (54), a feeding pump (56) is arranged on the feeding pipe (55), the feeding pump (56) is fixedly arranged on the mounting frame (4), a storage box (57) is also fixedly arranged on the support plate (1), the upper end of the feeding pipe (55) penetrates through the support plate (1) and communicates with one side of the storage box (57), the lower end of the rotating cylinder I (51) is fixedly connected with the drill bit (7), and the rotating cylinder I (51) and the drill bit (7) are coaxially arranged.

3. The ecological restoration device for river course according to claim 2, wherein The aeration oxygen supply assembly (6) comprises a rotating cylinder II (61) rotatably arranged on the mounting frame (4), a plurality of aeration discs (62) are integrally connected on the outer side of the lower end of the rotating cylinder II (61), a plurality of aeration heads (63) are integrally connected on the outer side of the aeration disc (62) at equal intervals, an aeration pipe (65) is rotatably connected to the upper end of the rotating cylinder II (61) through a rotary sealing joint II (64), an aerator (66) is arranged on the aeration pipe (65), the aerator (66) is fixedly arranged on the mounting frame (4), the lower end of the rotating cylinder II (61) is fixedly connected with the drill bit (7), and the rotating cylinder II (61) and the drill bit (7) are coaxially arranged.

4. The ecological restoration device for river course according to claim 3, wherein The rotating drive assembly (8) comprises a motor (81) fixedly arranged on the inner side of the mounting frame (4), a driving gear (82) is fixedly connected to the upper end output end of the motor (81), the cylinder walls of the rotating cylinder I (51) and the rotating cylinder II (61) are fixedly sleeved with driven gears (83) engaged with the driving gear (82).

5. The ecological restoration device for river course according to claim 3, wherein The anti-shrinkage assembly (9) comprises an anti-shrinkage cylinder (91) fixedly connected to the outer side of the upper end of the first rotating drum (51) and the second rotating drum (61), the outer side of the anti-shrinkage cylinder (91) is uniformly provided with a plurality of arc-shaped abutting plates (92) arranged in a ring shape, a pressure sensor (93) is fixedly arranged between the arc-shaped abutting plate (92) and the anti-shrinkage cylinder (91), and the arc-shaped abutting plate (92) is provided with an electric heating wire.

6. The ecological restoration device for river course according to claim 2, wherein The lower end of the first rotating drum (51) is fixedly connected with a temperature sensor (58) and a flow rate sensor (59) in a symmetrical manner, so as to monitor the water temperature and the water flow rate of the river in real time, the water temperature fed back by the temperature sensor (58) is negatively related to the working frequency of the bacteria spraying assembly (5) through the electric control and power storage assembly (2), and the water flow rate fed back by the flow rate sensor (59) is positively related to the working frequency of the bacteria spraying assembly (5) through the electric control and power storage assembly (2).

7. The ecological restoration device for river course according to claim 3, wherein The lower end of the second rotating drum (61) is fixedly connected with a dissolved oxygen sensor (67), and the dissolved oxygen fed back by the dissolved oxygen sensor (67) is negatively related to the working power of the aeration oxygen supply assembly (6) through the electric control and power storage assembly (2). 8.The ecological restoration device for a river according to claim 1, wherein Both ends of the support plate (1) are fixedly connected with two support rods (10) on the lower side, the lower ends of the two support rods (10) are fixedly connected with a same bottom plate (11), and the lower end of the bottom plate (11) is fixedly connected with a plurality of positioning nails (12) in a uniform manner.

9. A method for using the ecological restoration device for riverway according to any one of claims 1-8, wherein, The method comprises the following steps: S1. The entire device is fixed in the installation position through the cooperation of the support rod (10) and the bottom plate (11); S2. The electric control and power storage assembly (2) controls the bacteria spraying assembly (5) and the aeration oxygen supply assembly (6) to rotate driven by the rotating drive assembly (8), and then drives the drill bit (7) at the lower end to rotate, the electric control and power storage assembly (2) synchronously controls the electric push rod (3) to push the drill bit (7) to move downward, and rapid drilling work is performed on the ice surface; S3. The electric push rod (3) continues to push the bacteria spraying assembly (5) and the aeration oxygen supply assembly (6) to move to the water surface, the bacteria spraying assembly (5) is used for adding repair bacteria, and the aeration oxygen supply assembly (6) is used for aeration oxygen supply work; S4. The anti-shrinkage assembly (9) is placed in the drill hole, and the ice body re-frozen on the drill hole wall is cleaned through the cooperation of the rotating drive assembly (8), so that the stable existence of the drill hole is ensured.

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