An ecological restoration system and method for geological disaster prevention and control

Abstract

The present invention relates to the technical field of the restoration and treatment of polluted water bodies, and particularly relates to an ecological restoration system and method for geological disaster prevention and control. The ecological restoration system includes: a sedimentation tank, a first water inlet is arranged in the middle of the sedimentation tank, and an overflow outlet is arranged at the top of the sedimentation tank; a first biological treatment tank and a second biological treatment tank, the supernatant overflowing through the overflow outlet can enter the first biological treatment tank or the second biological treatment tank under the action of a switching baffle; a first disinfection tank, a first water outlet is arranged at the lower part of the first biological treatment tank, and the first water outlet is connected to the first disinfection tank through a first filter pipe; and a second disinfection tank, a second water outlet is arranged at the lower part of the second biological treatment tank, and the second water outlet is connected to the second disinfection tank through a second filter pipe. It can effectively remove the sediment invading the water body, reduce the content of organic matter and pathogenic microorganisms in the water body, and thus reduce the ecological environment restoration time of the polluted water body.

Description

Technical Field

[0001] The present invention relates to the technical field of polluted water body restoration treatment, and particularly relates to an ecological restoration system and method for geological disaster prevention and control. Background Art

[0002] Geological disasters such as landslides and debris flows can easily cause a large amount of sediment to enter rivers, resulting in river water pollution. Specifically, the sediment invading into the river will cause a significant increase in the sediment content of the river water, making the water body turbid. The microbial population in these sediments invades the water body, easily destroying the original ecological environment of the water body. Particularly, for geological disasters such as landslides and debris flows occurring near aquaculture sites, the pollutants invading into the river water may include not only sediment that has been in the aquaculture environment for a long time, but also a large amount of excrement. These pollutants invading into the water body will not only cause an increase in the sediment content of the water body, but also lead to a large amount of organic waste and pathogenic microorganisms, seriously destroying the ecological balance of the water body. In addition, along with the flow of the river water, these pollutants will continue to slowly release downstream for a period of time, making it take a long time for the water body to complete the self-repair of the ecosystem.

[0003] Therefore, there is an urgent need to propose an ecological restoration system and method for geological disaster prevention and control, which can carry out restoration operations on the polluted water body caused by geological disasters, effectively remove the sediment invading into the water body, effectively reduce the organic matter content and pathogenic microorganism content in the polluted water body, thereby reducing the ecological environment restoration time of the polluted water body and being beneficial to protecting the ecological balance of the water body. Summary of the Invention

[0004] The purpose of the present invention is to provide an ecological restoration system and method for geological disaster prevention and control, which can carry out restoration operations on the polluted water body caused by geological disasters, effectively remove the sediment invading into the water body, effectively reduce the organic matter content and pathogenic microorganism content in the polluted water body, thereby reducing the ecological environment restoration time of the polluted water body and being beneficial to protecting the ecological balance of the water body.

[0005] On the one hand, the present invention provides an ecological restoration system for geological disaster prevention and control, and the ecological restoration system includes:

[0006] A sedimentation tank that can sediment and remove sediment in the water to be treated. A first water inlet is provided in the middle of the sedimentation tank, and an overflow outlet is provided at the top of the sedimentation tank. The water to be treated is pumped into the sedimentation tank through the first water inlet by a water pump. A first biological treatment tank and a second biological treatment tank. A switching baffle is further provided in the overflow outlet, and the supernatant overflowing through the overflow outlet can enter the first biological treatment tank or the second biological treatment tank under the action of the switching baffle. Both the first biological treatment tank and the second biological treatment tank can remove organic matter in the supernatant. A first disinfection tank, the first disinfection tank is lower than the first biological treatment tank. A first water outlet is provided at the lower part of the first biological treatment tank, and the first water outlet is connected above the first disinfection tank through a first filter pipe. And a second disinfection tank, the second disinfection tank is lower than the second biological treatment tank. A second water outlet is provided at the lower part of the second biological treatment tank, and the second water outlet is connected above the second disinfection tank through a second filter pipe.

[0007] Further, a cylindrical deceleration shell cavity is provided at the height position corresponding to the first water inlet inside the sedimentation tank, and the axis of the deceleration shell cavity is in the vertical direction. A deceleration shaft is rotatably provided inside the sedimentation tank, and the axis of the deceleration shaft coincides with the axis of the deceleration shell cavity. A plurality of blades are circumferentially arranged on the deceleration shaft. Each of the blades is located inside the deceleration shell cavity. For any one of the blades, the upper end face of the blade abuts against the upper inner wall of the deceleration shell cavity, the lower end face of the blade abuts against the lower inner wall of the deceleration shell cavity, and the end of the blade away from the deceleration shaft abuts against the inner peripheral wall of the deceleration shell cavity. A second water inlet is provided on the circumferential surface of the deceleration shell cavity, and the first water inlet and the second water inlet are connected by a pipeline, and the connection line of the first water inlet and the second water inlet is the tangent direction of the deceleration shell cavity at the position where the second water inlet is located. A third water outlet is also opened on the lower end face of the deceleration shell cavity.

[0008] Further, a deceleration disk is provided below the blades on the deceleration shaft, and the upper end face of the deceleration disk abuts against the lower outer wall of the deceleration shell cavity. An annular flow groove is opened on the upper end face of the deceleration disk, and the flow groove is connected to the third water outlet. A plurality of deceleration grooves are also opened on the upper end face of the deceleration disk. For any one of the deceleration grooves, one end of the deceleration groove is connected to the flow groove, and the other end is connected to the circumferential surface of the deceleration disk.

[0009] Furthermore, the inner cavity at the lower part of the sedimentation tank is columnar, and an annular protrusion extends upward from the bottom of the sedimentation tank, and the axes of the protrusion and the inner cavity coincide with the axis of the deceleration housing cavity; a plurality of partitions with the same height as the protrusion also extend upward from the bottom of the sedimentation tank, and for any partition, the partition is arranged along the radial direction of the protrusion, and one end of the partition abuts against the outer peripheral wall of the protrusion, and the other end abuts against the inner cavity; each of the partitions is evenly distributed along the circumference of the protrusion, and a sedimentation cavity is formed between two adjacent partitions, and each of the sedimentation cavities is connected to the interior of the protrusion; a fan-shaped baffle is provided at the lower part of the deceleration shaft, and the lower end face of the baffle abuts against the upper end face of each baffle, and the central angle of the baffle satisfies the following relationship:

[0010]

[0011] Where n is the number of deposition chambers, and α is the central angle of the baffle;

[0012] The section of the deceleration shaft located at the lower part of the baffle is a hollow shaft tube, the outer circumferential wall of the hollow shaft tube abuts against the inner circumferential wall of the raised portion, and the end of the hollow shaft tube away from the baffle abuts against the bottom of the sedimentation tank; a silt outlet is opened on the tube wall of the hollow shaft tube, and the projection of the silt outlet on the baffle is located on the symmetry axis of the baffle; when the deceleration shaft rotates, the silt outlet can always be connected to a sedimentation chamber; a silt extraction pipe is connected to the bottom of the sedimentation tank, and the silt extraction pipe is connected to the interior of the hollow shaft tube.

[0013] Furthermore, activated sludge is added to the first biological treatment tank and the second biological treatment tank; the ecological restoration system also includes an air supply mechanism, which includes a cylinder body, a piston, a piston rod, a connecting rod and a crank; one end of the crank is fixedly mounted on the reduction shaft, and the other end is hinged to one end of the connecting rod; the other end of the connecting rod is hinged to one end of the piston rod; the other end of the piston rod is fixedly connected to the piston; the piston is slidably arranged in the internal cavity of the cylinder body; a first air inlet pipe and a first air outlet pipe are connected to the end of the cylinder body away from the reduction shaft, and a second air inlet pipe and a second air outlet pipe are provided at the end of the cylinder body close to the reduction shaft; the first air outlet pipe and the second air outlet pipe are both connected to the air outlet main pipe, and the air outlet main pipe is used to ventilate the first biological treatment tank and the second biological treatment tank.

[0014] Furthermore, a first aeration main pipe is provided in the first biological treatment tank, one end of the first aeration main pipe is connected to the gas outlet main pipe, and the other end is connected to the first aeration branch pipe; a second aeration main pipe is provided in the second biological treatment tank, one end of the second aeration main pipe is connected to the gas outlet main pipe, and the other end is connected to the second aeration branch pipe.

[0015] Furthermore, the ecological restoration system further includes: a first support and a second support fixedly arranged; the first support is located below the second support, and a first gear and a second gear are horizontally arranged between the first support and the second support, the first gear is rotatably connected to the first support, and the second gear is rotatably connected to the second support; a third gear is fixedly arranged on the first aeration main pipe and meshes with the first gear, and a fourth gear is fixedly arranged on the second aeration main pipe and meshes with the second gear; and a switching shaft, the switching shaft is inserted between the first gear and the second gear, and the switching shaft is rotated between the first gear and the second gear. A first abutment is provided on the switching shaft, and the first abutment is located above the second supporting platform; a fifth gear is fixedly provided on the switching shaft, and a tension spring is connected between the fifth gear and the second supporting platform; a sixth gear meshing with the fifth gear is fixedly provided on the deceleration shaft; a second abutment is provided on the switching shaft, and when the tension spring pulls the switching shaft downward so that the first abutment abuts the second supporting platform, the second abutment can cooperate with the inner wall of the first gear to transmit torque; when the switching shaft is lifted upward, the second abutment can cooperate with the inner wall of the second gear to transmit torque.

[0016] Further, the switching baffle is horizontally and slidably arranged at the upper part of the sedimentation tank; a water blocking part is arranged at the lower part of the switching baffle. By sliding the switching baffle, the water blocking part can cut off the flow channel for the supernatant to flow to the first biological treatment tank or the second biological treatment tank via the overflow port; a pushing part, a first air intercepting part and a second air intercepting part are further arranged at the upper part of the switching baffle. The first main aeration pipe and the main air outlet pipe are connected by a first hose, and the second main aeration pipe and the main air outlet pipe are connected by a second hose; a third abutting part is arranged above the first hose, and a fourth abutting part is arranged above the second hose; in the process of sliding the switching baffle to make the water blocking part cut off the flow channel for the supernatant to flow to the second biological treatment tank via the overflow port, the pushing part can abut against the lower part of the fifth gear and push the fifth gear upwards, so that the second abutting part cooperates with the inner wall of the second gear to transmit torque, and the distance between the first air intercepting part and the third abutting part gradually shortens, thereby squeezing the first hose flat; in the process of sliding the switching baffle to make the water blocking part cut off the flow channel for the supernatant to flow to the first biological treatment tank via the overflow port, the pushing part leaves the lower part of the fifth gear, so that the fifth gear moves downwards under the action of the tension spring, so that the second abutting part cooperates with the inner wall of the first gear to transmit torque, and the distance between the second air intercepting part and the fourth abutting part gradually shortens, thereby squeezing the second hose flat.

[0017] Further, the first main aeration pipe comprises a first vertical section and a first horizontal section, and the first aeration branch pipe comprises a second vertical section and a second horizontal section; the third gear is fixedly installed on the first vertical section, the first vertical section is coaxial with the first biological treatment tank, one end of the first horizontal section far away from the first vertical section is rotatably connected with one end of the second vertical section, and one end of the second vertical section far away from the first horizontal section is connected with the second horizontal section; a seventh gear is fixedly installed on the second vertical section, and a first toothed ring meshing with the seventh gear is fixedly arranged on the inner wall of the first biological treatment tank; the second main aeration pipe comprises a third vertical section and a third horizontal section, and the second aeration branch pipe comprises a fourth vertical section and a fourth horizontal section; the fourth gear is fixedly installed on the third vertical section, the third vertical section is coaxial with the second biological treatment tank, one end of the third horizontal section far away from the third vertical section is rotatably connected with one end of the fourth vertical section, and one end of the fourth vertical section far away from the third horizontal section is connected with the fourth horizontal section; an eighth gear is fixedly installed on the fourth vertical section, and a second toothed ring meshing with the eighth gear is fixedly arranged on the inner wall of the second biological treatment tank.

[0018] Another aspect of the present invention provides an ecological restoration method for geological disaster prevention and control. The ecological restoration method is based on the aforementioned ecological restoration system. Specifically, the ecological restoration method includes the following steps:

[0019] Step 1: Pump the contaminated water into the sedimentation tank through a water pump, and adjust the switching baffle so that the supernatant overflowing through the overflow port enters the first biological treatment tank or the second biological treatment tank; Step 2: After the supernatant in the first biological treatment tank or the second biological treatment tank undergoes biological treatment for a first preset period of time, the biologically treated supernatant is input into the corresponding first disinfection tank or the second disinfection tank through the corresponding first water outlet or the second water outlet for disinfection treatment; Step 3: After the water input into the first disinfection tank or the second disinfection tank undergoes disinfection treatment for a second preset period of time, the disinfected water is discharged.

[0020] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0021] 1. An ecological restoration system and method for geological disaster prevention and control provided by an embodiment of the present invention can effectively slow down the flow rate of water pumped into a sedimentation tank by providing a deceleration housing cavity and a deceleration shaft, thereby facilitating the sedimentation of silt in the water in the sedimentation tank to the bottom, thereby significantly reducing the silt content of the water entering the first biological treatment tank or the second biological treatment tank; a deceleration disc is provided on the deceleration shaft, which can further reduce the flow rate of water entering the sedimentation tank, and during the process of water entering the sedimentation tank, the deceleration shaft rotates under the action of the water, so that the water outflow end of each deceleration trough also rotates, and the polluted water can be evenly input into the sedimentation tank; during the rotation of the deceleration shaft, the baffle always "covers" the upper part of at least one sedimentation cavity. At this time, under the action of the silt extraction pump, the deposited silt in the sedimentation cavity can be pumped out, thereby timely removing the deposited silt in the sedimentation tank, preventing the deposited silt from being agitated and floating there under the action of the entering water, and thus improving the sedimentation effect of the sedimentation tank;

[0022] 2. An ecological restoration system and method for geological disaster prevention and control provided by an embodiment of the present invention promote the activities of microorganisms in the first biological treatment tank and the second biological treatment tank through aeration, thereby improving the decomposition efficiency of microorganisms on organic matter in water. In particular, in this embodiment, the kinetic energy of the water entering the sedimentation tank is used to drive the rotation of the reduction shaft, and the rotating reduction shaft is used to drive the air supply mechanism to pump air into the first biological treatment tank and / or the second biological treatment tank to achieve aeration. On the one hand, it provides a gas source for the aeration mechanism, and on the other hand, it also consumes the kinetic energy of the water entering the sedimentation tank, thereby helping to slow down the flow rate of the water entering the sedimentation tank. By setting the first aeration branch pipe and the second aeration branch pipe, the bubbles can be more evenly distributed in the corresponding ecological treatment tank, which can further improve the decomposition efficiency of microorganisms on organic matter in water.

[0023] 3. An ecological restoration system and method for geological disaster prevention and control provided by an embodiment of the present invention can transmit the rotational torque of the reduction shaft to the switching shaft by setting the fifth gear and the sixth gear, and transmit it to the first aeration main pipe through the first gear, so that the first aeration branch pipe rotates along the axis of the first aeration main pipe in the first biological treatment tank, and thus the bubbles output through the first aeration branch pipe can be more evenly distributed in the first biological treatment tank, or transmit it to the second aeration main pipe through the second gear, so that the second aeration branch pipe rotates along the axis of the second aeration main pipe in the second biological treatment tank, and thus the bubbles output through the second aeration branch pipe can be more evenly distributed in the second biological treatment tank. The more uniform distribution of bubbles is beneficial to improving the efficiency of microorganisms in the biological treatment tank to decompose organic matter in water, thereby strengthening the effect of biological treatment. Moreover, in this process, the rotation of the reduction shaft uses kinetic energy, which can further consume the flow rate of the water entering the sedimentation tank.

[0024] 4. An ecological restoration system and method for geological disaster prevention and control provided by an embodiment of the present invention can limit the supernatant of the sedimentation tank to enter only the first biological treatment tank or the second biological treatment tank by operating the switching baffle. Thus, the continuously overflowing supernatant can be biologically treated by rotating the two biological treatment tanks, which is beneficial to ensuring the duration of the supernatant receiving biological treatment. In addition, when the switching baffle cuts off the flow channel of the supernatant flowing to the second biological treatment tank through the overflow port, the pushing part pushes the fifth gear, so that the torque of the switching shaft is connected to the second gear, and thus the second aeration branch pipe rotates around the axis of the second aeration main pipe. Moreover, the first air cutoff part and the third abutting part pinch the first hose flat, so that all the air flow provided by the air supply mechanism is supplied to the second biological treatment tank, so that the second biological treatment tank enters a state of efficient biological treatment, while the first biological treatment tank is in a state of receiving the supernatant.

[0025] 5. In an ecological restoration system and method for geological disaster prevention and control provided by an embodiment of the present invention, when the switching shaft drives the first vertical section to rotate around its own axis, the second vertical section rotates around the axis of the first vertical section in the first biological treatment tank. At the same time, the seventh gear and the first ring gear engage, so that the second horizontal section rotates around the axis of the second vertical section. As a result, when the second horizontal section continuously outputs bubbles, it is in a state of motion of revolving around the first vertical section and rotating around the second vertical section. On the one hand, it can evenly input bubbles into the first biological treatment tank, and on the other hand, it can also disturb the water body in the first biological treatment tank, which is conducive to uniform and efficient biological treatment of the water body in the first biological treatment tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings:

[0027] Figure 1 A schematic diagram of the three-dimensional structure of an ecological restoration system for geological disaster prevention and control according to an embodiment of the present invention;

[0028] Figure 2 A schematic diagram of a three-dimensional structure from another perspective of an ecological restoration system for geological disaster prevention and control according to an embodiment of the present invention;

[0029] Figure 3 This is another schematic diagram of the three-dimensional structure of an ecological restoration system for geological disaster prevention and control according to an embodiment of the present invention, wherein portions of the walls of the sedimentation tank, the first biological treatment tank, and the second biological treatment tank are cut away for easy display of the interiors of the sedimentation tank, the first biological treatment tank, and the second biological treatment tank;

[0030] Figure 4 This is a front view of an ecological restoration system for geological disaster prevention and control according to an embodiment of the present invention;

[0031] Figure 5 A top view of an ecological restoration system for geological disaster prevention and control according to an embodiment of the present invention;

[0032] Figure 6 A schematic diagram of the three-dimensional structure of a deceleration shaft of an ecological restoration system for geological disaster prevention and control according to an embodiment of the present invention;

[0033] Figure 7 is a cross-sectional view of a sedimentation tank according to an embodiment of the present invention, wherein the cross-sectional view passes through the first water inlet;

[0034] Figure 8A schematic diagram of a transmission structure of a deceleration shaft and a switching shaft according to an embodiment of the present invention;

[0035] Figure 9 A longitudinal cross-sectional view of an ecological restoration system for geological disaster prevention and control according to an embodiment of the present invention, wherein the cross-sectional view passes through the axis of the deceleration shaft;

[0036] Figure 10 Another longitudinal cross-sectional view of an ecological restoration system for geological disaster prevention and control according to an embodiment of the present invention, wherein the cross-sectional view passes through the axis of the first aeration main pipe and the second aeration main pipe;

[0037] Figure 11 A schematic diagram of transmission between a switching shaft and a first gear and a second gear according to an embodiment of the present invention;

[0038] Figure 12 This is another cross-sectional view of a sedimentation tank according to an embodiment of the present invention, wherein the section passes through the silt outlet, and the right side of the figure is a partial enlarged view of the corresponding area of the left side of the figure.

[0039] Markings and corresponding parts names in the accompanying drawings:

[0040] 1 - Sedimentation tank; 11 - First water inlet; 12 - Overflow outlet; 121 - Switching baffle; 1211 - Water retaining part; 1212 - Pushing part; 1213 - First air intercepting part; 1214 - Second air intercepting part; 13 - Deceleration housing cavity; 131 - Second water inlet; 132 - Third water outlet; 14 - Deceleration shaft; 141 - Blade; 142 - Deceleration disc; 1421 - Flow channel; 1422 - Deceleration groove; 143 - Baffle; 144 - Silt outlet; 145 - Sixth gear; 15 - Protrusion; 16 - Partition; 17 - Silt extraction pipe; 2 - First biological treatment tank; 21 - First water outlet; 22 - First filter pipe; 23 - First main aeration pipe; 231 - First vertical section; 232 - First horizontal section; 24 - First aeration branch pipe; 241 - Second vertical section; 242 - Second horizontal section; 243 - Seventh gear; 25 - Third gear; 26 - First hose; 27 - Third abutting part; 28 - First gear ring; 3 - Second biological treatment tank; 31 - Second water outlet; 32 - Second filter pipe; 33 - Second main aeration pipe; 331 - Third vertical section; 332 - Third horizontal section; 34 - Second aeration branch pipe; 341 - Fourth vertical section; 342 - Fourth horizontal section; 343 - Eighth gear; 35 - Fourth gear; 36 - Second hose; 37 - Fourth abutting part; 38 - Second gear ring; 41 - First disinfection tank; 42 - Second disinfection tank; 51 - Cylinder block; 511 - First intake pipe; 512 - First exhaust pipe; 513 - Second intake pipe; 514 - Second exhaust pipe; 515 - Main exhaust pipe; 52 - Piston; 53 - Piston rod; 54 - Connecting rod; 55 - Crank; 61 - First bearing platform; 62 - Second bearing platform; 63 - First gear; 64 - Second gear; 7 - Switching shaft; 71 - First abutting part; 72 - Second abutting part; 73 - Fifth gear; 74 - Tension spring. Detailed implementation mode

[0041] To make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in combination with embodiments and drawings. The illustrative implementation modes and descriptions of the present invention are only used to explain the present invention and shall not be construed as a limitation to the present invention. It should be noted that the present invention has been in the actual R & D and use stage.

[0042] Landslides, debris flows and other geological disasters can easily lead to a large amount of sediment entering rivers, causing water pollution in the rivers. Specifically, the sediment invading into the rivers will cause a significant increase in the sediment content of the river water, resulting in turbid water, and the microbial population in the sediment will invade the water body, easily destroying the original ecological environment of the water body. In particular, for landslides, debris flows and other geological disasters occurring near aquaculture sites, the pollutants invading into the river water body may include not only sediment that has been in the aquaculture environment for a long time, but also a large amount of excrement. These pollutants invading into the water body will not only cause an increase in the sediment content of the water body, but also lead to a large amount of organic waste and pathogenic microorganisms, seriously destroying the ecological balance of the water body. In addition, along with the flow of the river water, these pollutants will continue to slowly release downstream for a period of time, making it take a long time for the water body to complete the self-repair of the ecosystem.

[0043] Therefore, the present invention proposes an ecological restoration system and method for geological disaster prevention and control, which can carry out restoration operations on polluted water bodies caused by geological disasters, can effectively remove sediment invading into the water body, effectively reduce the content of organic matter and pathogenic microorganisms in the polluted water body, and then reduce the ecological environment restoration time of the polluted water body, which is beneficial to protecting the ecological balance of the water body.

[0044] Example 1:

[0045] As Figures 1 to 7 and Figure 12 shown, this embodiment provides an ecological restoration system for geological disaster prevention and control, and this ecological restoration system includes:

[0046] A sedimentation tank 1, the sedimentation tank 1 can sediment and remove sediment in the water to be treated; a first water inlet 11 is arranged in the middle of the sedimentation tank 1, and an overflow outlet 12 is arranged at the top of the sedimentation tank 1. The water to be treated is pumped into the sedimentation tank 1 through the first water inlet 11 by a water pump;

[0047] A first biological treatment tank 2 and a second biological treatment tank 3. A switching baffle 121 is also arranged in the overflow outlet 12. The supernatant overflowing through the overflow outlet 12 can enter the first biological treatment tank 2 or the second biological treatment tank 3 under the action of the switching baffle 121; both the first biological treatment tank 2 and the second biological treatment tank 3 can remove organic matter in the supernatant;

[0048] A first disinfection tank 41, the first disinfection tank 41 is lower than the first biological treatment tank 2. A first water outlet 21 is arranged at the lower part of the first biological treatment tank 2, and the first water outlet 21 is connected above the first disinfection tank 41 through a first filter pipe 22; and,

[0049] The second disinfection tank 42, the second disinfection tank 42 is lower than the second biological treatment tank 3, a second water outlet 31 is arranged at the lower part of the second biological treatment tank 3, and the second water outlet 31 is connected to the upper part of the second disinfection tank 42 through a second filter pipe 32.

[0050] Specifically, a cylindrical deceleration shell cavity 13 is arranged at the height position corresponding to the first water inlet 11 inside the sedimentation tank 1, and the axis of the deceleration shell cavity 13 is along the vertical direction;

[0051] A deceleration shaft 14 is rotatably arranged inside the sedimentation tank 1, the axis of the deceleration shaft 14 coincides with the axis of the deceleration shell cavity 13, and a plurality of blades 141 are circumferentially arranged on the deceleration shaft 14;

[0052] Each of the blades 141 is located inside the deceleration shell cavity 13. For any one of the blades 141, the upper end surface of the blade 141 abuts against the upper inner wall of the deceleration shell cavity 13, the lower end surface of the blade 141 abuts against the lower inner wall of the deceleration shell cavity 13, and the end of the blade 141 away from the deceleration shaft 14 abuts against the inner peripheral wall of the deceleration shell cavity 13;

[0053] A second water inlet 131 is arranged on the circumferential surface of the deceleration shell cavity 13, the first water inlet 11 and the second water inlet 131 are communicated through a pipeline, and the connection line of the first water inlet 11 and the second water inlet 131 is the tangent direction of the deceleration shell cavity 13 at the position where the second water inlet 131 is located;

[0054] A third water outlet 132 is further opened on the lower end surface of the deceleration shell cavity 13.

[0055] In an ecological restoration system for geological disaster prevention and control provided in this embodiment, the water body at the pollutant intrusion point of the river is pumped into the sedimentation tank 1 by a water pump (it should be understood that the pumping position of the pump is underwater to avoid the entry of floating scum) for sedimentation, and a large amount of sediment in the polluted water body can be removed. Then, the supernatant is subjected to biological treatment through the first biological treatment tank 2 or the second biological treatment tank 3, and the organic matter in the supernatant can be effectively decomposed. Then, the supernatant after biological treatment enters the corresponding disinfection tank (the water body passing through the first filter pipe 22 enters the first disinfection tank 41, and the water body passing through the second filter pipe 32 enters the second disinfection tank 42) through the corresponding filter pipe for disinfection treatment to kill bacteria, viruses and pathogenic microorganisms in the water body. After the above treatment, the sediment invading the water body can be effectively removed, the content of organic matter and pathogenic microorganisms in the polluted water body can be effectively reduced, and then the water body is discharged back into the river, which helps the polluted river water body to complete ecological restoration in a short time.

[0056] Preferably, the first filter tube 22 and the second filter tube 32 are detachably installed. Both the first filter tube 22 and the second filter tube 32 contain a variety of filter media, and the filter media are preferably a fine sand layer with a particle size of 0.3 mm to 0.6 mm and an activated carbon layer arranged in sequence along the water flow direction; preferably, ozone filtration technology is adopted for disinfection in the first disinfection tank 41 and the second disinfection tank 42.

[0057] Particularly, for an ecological restoration system for geological disaster prevention and control provided in this embodiment, by providing a speed reduction housing cavity 13 and a speed reduction shaft 14, the flow rate of the water pumped into the sedimentation tank 1 can be effectively reduced, which is conducive to the sediment in the water in the sedimentation tank 1 settling to the bottom, and thus greatly reduces the sediment content of the water entering the first biological treatment tank 2 or the second biological treatment tank 3.

[0058] Preferably, a speed reduction disc 142 is further provided below the blade 141 of the speed reduction shaft 14, and the upper end surface of the speed reduction disc 142 abuts against the lower outer wall of the speed reduction housing cavity 13;

[0059] An annular flow groove 1421 is formed on the upper end surface of the speed reduction disc 142, and the flow groove 1421 is connected to the third water outlet 132;

[0060] A plurality of speed reduction grooves 1422 are also formed on the upper end surface of the speed reduction disc 142. For any one of the speed reduction grooves 1422, one end of the speed reduction groove 1422 is connected to the flow groove 1421, and the other end is connected to the circumferential surface of the speed reduction disc 142. Preferably, the speed reduction groove 1422 is a zigzag speed reduction groove 1422.

[0061] Based on this, for an ecological restoration system for geological disaster prevention and control provided in this embodiment, by providing a speed reduction disc 142 on the speed reduction shaft 14, the flow rate of the water entering the sedimentation tank 1 can be further reduced, and during the process of the water entering the sedimentation tank 1, the speed reduction shaft 14 rotates under the action of the water, so that the water outlet ends of the speed reduction grooves 1422 also rotate, and the polluted water can be evenly input into the sedimentation tank 1.

[0062] Preferably, the inner cavity at the lower part of the sedimentation tank 1 is columnar, and a ring-shaped protruding part 15 extends upward from the bottom of the sedimentation tank 1. The axes of the protruding part 15 and the inner cavity coincide with the axis of the reduction gear housing cavity 13. A plurality of partitions 16 having the same height as the protruding part 15 also extend upward from the bottom of the sedimentation tank 1. For any partition 16, the partition 16 is arranged radially along the protruding part 15, one end of the partition 16 abuts against the outer peripheral wall of the protruding part 15, and the other end abuts against the inner cavity. The partitions 16 are evenly distributed in the circumferential direction of the protruding part 15, and a sedimentation cavity is formed between two adjacent partitions 16. Each sedimentation cavity communicates with the inside of the protruding part 15.

[0063] A sector-shaped baffle 143 is arranged at the lower part of the reduction shaft 14. The lower end surface of the baffle 143 abuts against the upper end surfaces of the partitions 16. The central angle of the baffle 143 satisfies the following relationship:

[0064]

[0065] where n is the number of sedimentation cavities, and α is the central angle of the baffle 143.

[0066] The section of the reduction shaft 14 below the baffle 143 is a hollow shaft tube. The outer peripheral wall of the hollow shaft tube abuts against the inner peripheral wall of the protruding part 15. One end of the hollow shaft tube away from the baffle 143 abuts against the bottom of the sedimentation tank 1.

[0067] A silt outlet 144 is formed on the wall of the hollow shaft tube. The projection of the silt outlet 144 on the baffle 143 is located on the axis of symmetry of the baffle 143. When the reduction shaft 14 rotates, the silt outlet 144 can always be connected to a sedimentation cavity.

[0068] A silt extraction pipe 17 is connected to the bottom of the sedimentation tank 1. The silt extraction pipe 17 communicates with the inside of the hollow shaft tube. It should be understood that the silt extraction pipe 17 is connected to a silt extraction pump (not shown in the figure), and the silt accumulated in each sedimentation cavity can be timely extracted through the silt extraction pump.

[0069] Based on this, during the rotation of the reduction shaft 14, the baffle 143 always "covers" at least the upper part of a sedimentation cavity (which means covering the upper opening of the sedimentation cavity, and the contact part allows water to penetrate). At this time, under the action of the silt extraction pump, the sediment deposited in the sedimentation cavity can be extracted, thereby timely removing the sediment deposited in the sedimentation tank 1, avoiding the sediment being agitated and floating again under the action of the incoming water, and being beneficial to improving the sedimentation effect of the sedimentation tank 1.

[0070] Embodiment 2:

[0071] This embodiment is based on Embodiment 1, and the difference is that in an ecological restoration system for geological disaster prevention and control provided in this embodiment:

[0072] Activated sludge is put in both the first biological treatment tank 2 and the second biological treatment tank 3;

[0073] The ecological restoration system further includes an air supply mechanism, and the air supply mechanism includes a cylinder block 51, a piston 52, a piston rod 53, a connecting rod 54 and a crank 55; one end of the crank 55 is fixedly installed on the reduction shaft 14, and the other end is hinged to one end of the connecting rod 54; the other end of the connecting rod 54 is hinged to one end of the piston rod 53; the other end of the piston rod 53 is fixedly connected to the piston 52; the piston 52 is slidably arranged in the inner cavity of the cylinder block 51;

[0074] A first air inlet pipe 511 and a first air outlet pipe 512 are connected to one end of the cylinder block 51 away from the reduction shaft 14, and a second air inlet pipe 513 and a second air outlet pipe 514 are arranged at one end of the cylinder block 51 close to the reduction shaft 14; the first air outlet pipe 512 and the second air outlet pipe 514 are both connected to an air outlet main pipe 515, and the air outlet main pipe 515 is used for ventilating the first biological treatment tank 2 and the second biological treatment tank 3.

[0075] It should be understood that in order to enable the first air inlet pipe 511 and the second air inlet pipe 513 to only intake air and the first air outlet pipe 512 and the second air outlet pipe 514 to only exhaust air, check valves are installed in the first air inlet pipe 511, the second air inlet pipe 513, the first air outlet pipe 512 and the second air outlet pipe 514 to restrict the air flow direction. Thus, during the rotation of the reduction shaft 14, the rotation of the crank 55 causes the piston 52 to perform a reciprocating linear motion in the cylinder block 51, and then continuously pumps air towards the first biological treatment tank 2 and / or the second biological treatment tank 3 through the air outlet main pipe 515.

[0076] Based on this, an ecological restoration system for geological disaster prevention and control provided in this embodiment promotes the activities of microorganisms in the first biological treatment tank 2 and the second biological treatment tank 3 through aeration, and then improves the decomposition efficiency of microorganisms on organic matters in the water body; in particular, this embodiment uses the power of the water body entering the sedimentation tank 1 to drive the rotation of the reduction shaft 14, and uses the rotating reduction shaft 14 to drive the air supply mechanism to pump air towards the first biological treatment tank 2 and / or the second biological treatment tank 3 to achieve aeration. On the one hand, it provides a gas source for the aeration mechanism, and on the other hand, it also consumes the kinetic energy of the water body entering the sedimentation tank 1, thereby helping to slow down the flow rate of the water body entering the sedimentation tank 1.

[0077] Preferably, a first main aeration pipe 23 is arranged in the first biological treatment tank 2. One end of the first main aeration pipe 23 is connected to the air outlet main pipe 515, and the other end is connected with a first aeration branch pipe 24.

[0078] A second main aeration pipe 33 is arranged in the second biological treatment tank 3. One end of the second main aeration pipe 33 is connected to the air outlet main pipe 515, and the other end is connected with a second aeration branch pipe 34.

[0079] It should be understood that, in order to make the air flow into the first biological treatment tank 2 more evenly, the air entering the first main aeration pipe 23 is released through a plurality of small holes on the first aeration branch pipe 24. Similarly, in order to make the air flow into the second biological treatment tank 3 more evenly, the air entering the second main aeration pipe 33 is released through a plurality of small holes on the second aeration branch pipe 34. Preferably, in order to increase the retention time of the bubbles in the water body, the first aeration branch pipe 24 is located at the bottom of the first biological treatment tank 2, and the second aeration branch pipe 34 is located at the bottom of the second biological treatment tank 3. Optionally, a plurality of layers of perforated plates with staggered holes (not shown in the figure) are arranged above the first aeration branch pipe 24 and the second aeration branch pipe 34, so as to slow down the rising speed of the bubbles.

[0080] Thus, by arranging the first aeration branch pipe 24 and the second aeration branch pipe 34, the bubbles can be more evenly distributed in the corresponding ecological treatment tank, and the decomposition efficiency of the microorganisms on the organic matter in the water body can be further improved.

[0081] Embodiment 3:

[0082] As Figures 1 to 10 shown, this embodiment is based on Embodiment 2, and the difference is that, in this embodiment, the ecological restoration system further includes:

[0083] A fixedly arranged first bearing platform 61 and a second bearing platform 62; the first bearing platform 61 is located below the second bearing platform 62, and a first gear 63 and a second gear 64 are horizontally arranged between the first bearing platform 61 and the second bearing platform 62. The first gear 63 is rotatably connected to the first bearing platform 61, and the second gear 64 is rotatably connected to the second bearing platform 62; a third gear 25 meshing and driving with the first gear 63 is fixedly arranged on the first main aeration pipe 23, and a fourth gear 35 meshing and driving with the second gear 64 is fixedly arranged on the second main aeration pipe 33; and,

[0084] The switching shaft 7 is inserted between the first gear 63 and the second gear 64, and a first abutment 71 is provided on the switching shaft 7, and the first abutment 71 is located above the second support 62; a fifth gear 73 is fixedly provided on the switching shaft 7, and a tension spring 74 is connected between the fifth gear 73 and the second support 62; a sixth gear 145 meshing with the fifth gear 73 is fixedly provided on the deceleration shaft 14; a second abutment 72 is provided on the switching shaft 7, and when the tension spring 74 pulls the switching shaft 7 downward so that the first abutment 71 and the second support 62 abut, the second abutment 72 can cooperate with the inner wall of the first gear 63 to transmit torque; when the switching shaft 7 is lifted upward, the second abutment 72 can cooperate with the inner wall of the second gear 64 to transmit torque.

[0085] Specifically, if Figure 11 As shown, the cross-section of the second abutting portion 72 is elliptical, and the cross-sections of the inner walls of the first gear 63 and the second gear 64 are also elliptical. It should be understood that in order to achieve power transmission between the switching shaft 7 and the first gear 63, the major axis length of the elliptical outline of the outer wall of the second abutting portion 72 is greater than the minor axis length of the elliptical outline of the inner wall of the first gear 63; similarly, the major axis length of the elliptical outline of the outer wall of the second abutting portion 72 is greater than the minor axis length of the elliptical outline of the inner wall of the second gear 64; Figure 11 In the embodiment, the switching shaft 7 is lifted upward. At this time, when the reduction shaft 14 rotates and drives the switching shaft 7 to rotate, the outer peripheral wall of the second abutting portion 72 abuts against the inner peripheral wall of the second gear 64, thereby enabling torque transmission. Similarly, when it is necessary to switch to transmitting torque to the first gear 63, the switching shaft 7 can be lowered. Obviously, during the process of the switching shaft 7 rising and falling, the fifth gear 73 and the sixth gear 145 are always in a meshing state.

[0086] Based on this, by setting the fifth gear 73 and the sixth gear 145, the rotational torque of the reduction shaft 14 can be transmitted to the switching shaft 7, and then transmitted to the first aeration main pipe 23 through the first gear 63. Furthermore, the first aeration branch pipe 24 can rotate along the axis of the first aeration main pipe 23 in the first biological treatment tank 2, so that the bubbles output through the first aeration branch pipe 24 can be more evenly distributed in the first biological treatment tank 2. Or it can be transmitted to the second aeration main pipe 33 through the second gear 64, so that the second aeration branch pipe 34 can rotate along the axis of the second aeration main pipe 33 in the second biological treatment tank 3, and then the bubbles output through the second aeration branch pipe 34 can be more evenly distributed in the second biological treatment tank 3. The more even distribution of the bubbles is beneficial to improving the efficiency of microorganisms in the biological treatment tank to decompose the organic matter in the water body, thereby strengthening the effect of biological treatment. Moreover, in this process, the rotation of the reduction shaft 14 utilizes kinetic energy to further consume the flow rate of the water body entering the sedimentation tank 1.

[0087] More preferably, the switching baffle 121 is horizontally slidably arranged at the upper part of the sedimentation tank 1;

[0088] A water blocking part 1211 is arranged at the lower part of the switching baffle 121. By sliding the switching baffle 121, the water blocking part 1211 can cut off the flow channel of the supernatant flowing to the first biological treatment tank 2 or the second biological treatment tank 3 through the overflow port;

[0089] A pushing part 1212, a first air intercepting part 1213 and a second air intercepting part 1214 are further arranged at the upper part of the switching baffle 121. The first aeration main pipe 23 and the air outlet main pipe 515 are connected through a first hose 26, and the second aeration main pipe 33 and the air outlet main pipe 515 are connected through a second hose 36. A third abutting part 27 is arranged above the first hose 26, and a fourth abutting part 37 is arranged above the second hose 36;

[0090] When the switching baffle 121 is slid so that the water retaining portion 1211 cuts off the flow channel of the supernatant to the second biological treatment tank 3 through the overflow port, the pushing portion 1212 can abut against the lower portion of the fifth gear 73 and push the fifth gear 73 upward, thereby causing the second abutting portion 72 to cooperate with the inner wall of the second gear 64 to transmit torque, and the distance between the first air cut-off portion 1213 and the third abutting portion 27 is gradually shortened, thereby squeezing the first hose 26; when the switching baffle 121 is slid so that the water retaining portion 1211 cuts off the flow channel of the supernatant to the first biological treatment tank 2 through the overflow port, the pushing portion 1212 leaves the lower portion of the fifth gear 73, causing the fifth gear 73 to move downward under the action of the tension spring 74, thereby causing the second abutting portion 72 to cooperate with the inner wall of the first gear 63 to transmit torque, and the distance between the second air cut-off portion 1214 and the fourth abutting portion 37 is gradually shortened, thereby squeezing the second hose 36.

[0091] Based on this, by operating the switching baffle 121, the supernatant of the sedimentation tank 1 can be limited to enter only the first biological treatment tank 2 or the second biological treatment tank 3, thereby, the continuously overflowing supernatant can be biologically treated by rotation through the two biological treatment tanks, which is conducive to ensuring the length of time the supernatant is subjected to biological treatment; in addition, when the switching baffle 121 cuts off the flow channel of the supernatant to flow to the second biological treatment tank 3 through the overflow port, the pushing part 1212 pushes the fifth gear 73 so that the torque of the switching shaft 7 is connected to the second gear 64, thereby causing the second aeration branch pipe 34 to rotate around the axis of the second aeration main pipe 33, and the first air-cutting part and the third abutting part 27 clamp the first hose 26, thereby causing all (most of) the air flow provided by the air supply mechanism to be supplied to the second biological treatment tank 3, thereby causing the second biological treatment tank 3 to enter a state of efficient biological treatment, while the first biological treatment tank 2 is in a state of receiving supernatant. The situation in which the switching baffle 121 cuts off the flow channel of the supernatant to flow to the first biological treatment tank 2 via the overflow port is similar to the above-mentioned situation in which the supernatant to flow to the second biological treatment tank 3 via the overflow port is cut off, and will not be repeated.

[0092] Furthermore, the first aeration main pipe 23 includes a first vertical section 231 and a first horizontal section 232, and the first aeration branch pipe 24 includes a second vertical section 241 and a second horizontal section 242. The third gear 25 is fixedly mounted on the first vertical section 231. The first vertical section 231 is coaxial with the first biological treatment tank 2. The end of the first horizontal section 232 away from the first vertical section 231 is rotatably connected to one end of the second vertical section 241, and the end of the second vertical section 241 away from the first horizontal section 232 is connected to the second horizontal section 242. A seventh gear 243 is fixedly mounted on the second vertical section 241, and a first gear ring 28 is fixedly provided on the inner wall of the first biological treatment tank 2, which meshes with the seventh gear 243.

[0093] The second aeration main pipe 33 includes a third vertical section 331 and a third horizontal section 332, and the second aeration branch pipe 34 includes a fourth vertical section 341 and a fourth horizontal section 342; the fourth gear 35 is fixedly mounted on the third vertical section 331, and the third vertical section 331 is coaxial with the second biological treatment tank 3; the end of the third horizontal section 332 away from the third vertical section 331 is rotatably connected to one end of the fourth vertical section 341, and the end of the fourth vertical section 341 away from the third horizontal section 332 is connected to the fourth horizontal section 342; an eighth gear 343 is fixedly mounted on the fourth vertical section 341, and a second gear ring 38 meshing with the eighth gear 343 is fixedly provided on the inner wall of the second biological treatment tank 3.

[0094] It should be understood that, in this embodiment, the first aeration branch pipe 24 outputs bubbles through the tiny pores on the second horizontal section 242 , and the second aeration branch pipe 34 outputs bubbles through the tiny pores on the fourth horizontal section 342 .

[0095] Based on this, the second vertical section 241 is in an eccentric position (referring to deviating from the axis of the second biological treatment tank 3) in the first biological treatment tank 2, and the fourth vertical section 341 is in an eccentric position in the second biological treatment tank 3. Thus, when the switching shaft 7 drives the first vertical section 231 to rotate around its own axis, the second vertical section 241 rotates around the axis of the first vertical section 231 in the first biological treatment tank 2. At the same time, the seventh gear 243 meshes with the first toothed ring 28, causing the second horizontal section 242 to rotate around the axis of the second vertical section 241. Therefore, when the second horizontal section 242 continuously outputs bubbles, it is in a motion state of orbiting around the first vertical section 231 and rotating around the second vertical section 241 itself. On the one hand, it can evenly input the bubbles into the first biological treatment tank 2, and on the other hand, it can also disturb the water body in the first biological treatment tank 2, thereby facilitating the uniform and efficient biological treatment of the water body in the first biological treatment tank 2. The situation where the switching shaft 7 drives the third vertical section 331 to rotate around its own axis is similar to the situation where it drives the first vertical section 231 to rotate around its own axis, which can facilitate the uniform and efficient biological treatment of the water body in the second biological treatment tank 3, and will not be elaborated here.

[0096] Embodiment 4:

[0097] This embodiment provides an ecological restoration method for geological disaster prevention and control. Based on the aforementioned ecological restoration system, this ecological restoration method includes the following steps:

[0098] Step 1: Pump the polluted water body into the sedimentation tank 1 through a water pump, and adjust the switching baffle 121 so that the supernatant overflowing through the overflow port 12 enters the first biological treatment tank 2 or the second biological treatment tank 3;

[0099] Step 2: After the supernatant in the first biological treatment tank 2 or the second biological treatment tank 3 undergoes biological treatment for a first preset duration, input the biologically treated supernatant into the corresponding first disinfection tank 41 or second disinfection tank 42 through the corresponding first water outlet 21 or second water outlet 31 for disinfection treatment;

[0100] Step 3: After the water body input into the first disinfection tank 41 or the second disinfection tank 42 undergoes disinfection treatment for a second preset duration, discharge the disinfected water body

[0101] Based on this, through the ecological restoration method for geological disaster prevention and control provided in this embodiment, it is possible to effectively reduce the sediment content of the polluted water body caused by geological disasters in the river water body, thereby making the water body clear; it can greatly reduce the organic matter content in the water body, thereby avoiding water eutrophication; it can also kill the pathogenic microorganisms in the water body, thereby avoiding the harm caused by the invading pathogenic microorganisms to the original organisms in the water body; thus, it can effectively promote the restoration of the polluted water body to the original ecological balance state.

[0102] It should be understood that in this application, "rotational connection" means that the two can only rotate relative to each other. For example, the rotational connection between a hole and a shaft rod can be achieved by setting a shaft shoulder on the shaft and a limiting groove in the hole to limit the axial relative movement.

[0103] The specific embodiments described above have further elaborated on the purpose, technical solutions, and beneficial effects of the present invention. It should be understood that the above are only specific embodiments of the present invention and are not used to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An ecological restoration system for geological disaster prevention and control, characterized in that, Comprising: A sedimentation tank (1) capable of sedimenting and removing sediment in the water to be treated; A first water inlet (11) is provided in the middle of the sedimentation tank (1), and an overflow outlet (12) is provided at the top of the sedimentation tank (1). The water to be treated is pumped into the sedimentation tank (1) through the first water inlet (11) by a water pump; A first biological treatment tank (2) and a second biological treatment tank (3). A switching baffle (121) is further provided in the overflow outlet (12). The supernatant overflowing through the overflow outlet (12) can enter the first biological treatment tank (2) or the second biological treatment tank (3) under the action of the switching baffle (121). Both the first biological treatment tank (2) and the second biological treatment tank (3) can remove organic matter in the supernatant; A first disinfection tank (41), the first disinfection tank (41) is lower than the first biological treatment tank (2). A first water outlet (21) is provided at the lower part of the first biological treatment tank (2), and the first water outlet (21) is connected above the first disinfection tank (41) through a first filter pipe (22); And, A second disinfection tank (42), the second disinfection tank (42) is lower than the second biological treatment tank (3). A second water outlet (31) is provided at the lower part of the second biological treatment tank (3), and the second water outlet (31) is connected above the second disinfection tank (42) through a second filter pipe (32); A cylindrical deceleration shell cavity (13) is provided at the height position corresponding to the first water inlet (11) inside the sedimentation tank (1), and the axis of the deceleration shell cavity (13) is in the vertical direction; A deceleration shaft (14) is rotatably provided inside the sedimentation tank (1), the axis of the deceleration shaft (14) coincides with the axis of the deceleration shell cavity (13), and a plurality of blades (141) are circumferentially arranged on the deceleration shaft (14); Each of the blades (141) is located inside the deceleration shell cavity (13). For any one of the blades (141), the upper end surface of the blade (141) abuts against the upper inner wall of the deceleration shell cavity (13), the lower end surface of the blade (141) abuts against the lower inner wall of the deceleration shell cavity (13), and the end of the blade (141) away from the deceleration shaft (14) abuts against the inner peripheral wall of the deceleration shell cavity (13); A second water inlet (131) is provided on the circumferential surface of the deceleration shell cavity (13). The first water inlet (11) and the second water inlet (131) are connected by a pipeline, and the connection line of the first water inlet (11) and the second water inlet (131) is the tangent direction of the deceleration shell cavity (13) at the position where the second water inlet (131) is located; A third water outlet (132) is further opened on the lower end surface of the deceleration shell cavity (13).

2. The ecological restoration system for geological disaster prevention and control according to claim 1, characterized in that A deceleration disk (142) is further provided below the deceleration shaft (14) and located below the blade (141). The upper end surface of the deceleration disk (142) abuts against the lower outer wall of the deceleration housing cavity (13). An annular flow groove (1421) is formed on the upper end surface of the deceleration disk (142), and the flow groove (1421) communicates with the third water outlet (132). A plurality of deceleration grooves (1422) are further formed on the upper end surface of the deceleration disk (142). For any deceleration groove (1422), one end of the deceleration groove (1422) is connected to the flow groove (1421), and the other end is connected to the circumferential surface of the deceleration disk (142).

3. An ecological restoration system for geological disaster prevention and control according to claim 1, characterized in that The inner cavity at the lower part of the sedimentation tank (1) is columnar, and an annular convex portion (15) extends upward from the bottom of the sedimentation tank (1). The axes of the convex portion (15) and the inner cavity coincide with the axis of the deceleration housing cavity (13). A plurality of partitions (16) having the same height as the convex portion (15) also extend upward from the bottom of the sedimentation tank (1). For any partition (16), the partition (16) is arranged radially along the convex portion (15), one end of the partition (16) abuts against the outer peripheral wall of the convex portion (15), and the other end abuts against the inner cavity; the partitions (16) are evenly distributed in the circumferential direction of the convex portion (15), and a sedimentation cavity is formed between two adjacent partitions (16), and each sedimentation cavity communicates with the inside of the convex portion (15). A fan-shaped baffle (143) is provided at the lower part of the deceleration shaft (14), and the lower end surface of the baffle (143) abuts against the upper end surfaces of the partitions (16). The central angle of the baffle (143) satisfies the following relationship: ， Among them, n is the number of deposition chambers, α is the central angle of the baffle plate (143); The section of the deceleration shaft (14) located below the baffle (143) is a hollow shaft tube. The outer peripheral wall of the hollow shaft tube abuts against the inner peripheral wall of the convex portion (15), and one end of the hollow shaft tube away from the baffle (143) abuts against the bottom of the sedimentation tank (1). A silt outlet (144) is formed on the pipe wall of the hollow shaft tube. The projection of the silt outlet (144) on the baffle (143) is located on the axis of symmetry of the baffle (143); when the deceleration shaft (14) rotates, the silt outlet (144) can always communicate with a sedimentation cavity. A silt suction pipe (17) is connected to the bottom of the sedimentation tank (1), and the silt suction pipe (1) communicates with the inside of the hollow shaft tube.

4. An ecological restoration system for geological disaster prevention and control according to claim 1, characterized in that Activated sludge is put into both the first biological treatment tank (2) and the second biological treatment tank (3). The ecological restoration system further includes an air supply mechanism, which includes a cylinder block (51), a piston (52), a piston rod (53), a connecting rod (54) and a crank (55); one end of the crank (55) is fixedly installed on the reduction shaft (14), and the other end is hinged to one end of the connecting rod (54); the other end of the connecting rod (54) is hinged to one end of the piston rod (53); the other end of the piston rod (53) is fixedly connected to the piston (52); the piston (52) is slidably arranged in the inner cavity of the cylinder block (51). A first intake pipe (511) and a first outlet pipe (512) are connected to one end of the cylinder block (51) away from the reduction shaft (14), and a second intake pipe (513) and a second outlet pipe (514) are arranged at one end of the cylinder block (51) close to the reduction shaft (14); the first outlet pipe (512) and the second outlet pipe (514) are both connected to an outlet main pipe (515), and the outlet main pipe (515) is used for ventilating the first biological treatment tank (2) and the second biological treatment tank (3).

5. An ecological restoration system for geological disaster prevention and control according to claim 4, characterized in that A first aeration main pipe (23) is arranged in the first biological treatment tank (2), one end of the first aeration main pipe (23) is connected to the outlet main pipe (515), and the other end is connected to a first aeration branch pipe (24). A second aeration main pipe (33) is arranged in the second biological treatment tank (3), one end of the second aeration main pipe (33) is connected to the outlet main pipe (515), and the other end is connected to a second aeration branch pipe (34).

6. An ecological restoration system for geological disaster prevention and control according to claim 5, characterized in that The ecological restoration system further includes: A fixedly arranged first bearing platform (61) and a second bearing platform (62); the first bearing platform (61) is located below the second bearing platform (62), a first gear (63) and a second gear (64) are horizontally arranged between the first bearing platform (61) and the second bearing platform (62), the first gear (63) is rotationally connected to the first bearing platform (61), and the second gear (64) is rotationally connected to the second bearing platform (62); a third gear (25) meshing and driving with the first gear (63) is fixedly arranged on the first aeration main pipe (23), and a fourth gear (35) meshing and driving with the second gear (64) is fixedly arranged on the second aeration main pipe (33); and A switching shaft (7) is inserted into the first gear (63) and the second gear (64). A first abutting portion (71) is provided on the switching shaft (7), and the first abutting portion (71) is located above the second bearing block (62). A fifth gear (73) is fixedly provided on the switching shaft (7), and a tension spring (74) is connected between the fifth gear (73) and the second bearing block (62). A sixth gear (145) meshing with the fifth gear (73) is fixedly provided on the reduction shaft (14). A second abutting portion (72) is provided on the switching shaft (7). When the tension spring (74) pulls down the switching shaft (7) so that the first abutting portion (71) abuts against the second bearing block (62), the second abutting portion (72) can cooperate with the inner wall of the first gear (63) to transmit torque. When the switching shaft (7) is lifted upward, the second abutting portion (72) can cooperate with the inner wall of the second gear (64) to transmit torque.

7. The ecological restoration system for geological disaster prevention and control according to claim 6, wherein The switching baffle (121) is horizontally and slidably arranged at the upper part of the sedimentation tank (1); A water blocking portion (1211) is provided at the lower part of the switching baffle (121). By sliding the switching baffle (121), the water blocking portion (1211) can cut off the flow channel of the supernatant flowing to the first biological treatment tank (2) or the second biological treatment tank (3) via the overflow port; A top pushing portion (1212), a first air intercepting portion (1213) and a second air intercepting portion (1214) are further provided at the upper part of the switching baffle (121). The first main aeration pipe (23) and the main air outlet pipe (515) are connected through a first hose (26), and the second main aeration pipe (33) and the main air outlet pipe (515) are connected through a second hose (36). A third abutting portion (27) is provided above the first hose (26), and a fourth abutting portion (37) is provided above the second hose (36); During the process of sliding the switching baffle (121) such that the water retaining portion (1211) cuts off the flow passage of the supernatant flowing to the second biological treatment tank (3) via the overflow port, the pushing portion (1212) can abut against the lower part of the fifth gear (73) and push the fifth gear (73) upward, thereby enabling the second abutting portion (72) to cooperate with the inner wall of the second gear (64) to transmit torque, and the distance between the first air intercepting portion (1213) and the third abutting portion (27) gradually shortens, thereby squeezing the first hose (26); during the process of sliding the switching baffle (121) such that the water retaining portion (1211) cuts off the flow passage of the supernatant flowing to the first biological treatment tank (2) via the overflow port, the pushing portion (1212) leaves the lower part of the fifth gear (73), causing the fifth gear (73) to move downward under the action of the tension spring (74), thereby enabling the second abutting portion (72) to cooperate with the inner wall of the first gear (63) to transmit torque, and the distance between the second air intercepting portion (1214) and the fourth abutting portion (37) gradually shortens, thereby squeezing the second hose (36).

8. An ecological restoration system for geological disaster prevention and control according to claim 6, wherein The first aeration main pipe (23) includes a first vertical section (231) and a first horizontal section (232), and the first aeration branch pipe (24) includes a second vertical section (241) and a second horizontal section (242); the third gear (25) is fixedly installed on the first vertical section (231), the first vertical section (231) is coaxial with the first biological treatment tank (2), one end of the first horizontal section (232) away from the first vertical section (231) is rotatably connected to one end of the second vertical section (241), and one end of the second vertical section (241) away from the first horizontal section (232) is connected to the second horizontal section (242); a seventh gear (243) is fixedly installed on the second vertical section (241), and a first toothed ring (28) meshing with the seventh gear (243) is fixedly arranged on the inner wall of the first biological treatment tank (2); The second main aeration pipe (33) includes a third vertical section (331) and a third horizontal section (332), and the second aeration branch pipe (34) includes a fourth vertical section (341) and a fourth horizontal section (342); the fourth gear (35) is fixedly installed on the third vertical section (331), the third vertical section (331) is coaxial with the second biological treatment tank (3), one end of the third horizontal section (332) far away from the third vertical section (331) is rotatably connected to one end of the fourth vertical section (341), and one end of the fourth vertical section (341) far away from the third horizontal section (332) is connected to the fourth horizontal section (342); an eighth gear (343) is fixedly installed on the fourth vertical section (341), and a second toothed ring (38) meshing with the eighth gear (343) is fixedly arranged on the inner wall of the second biological treatment tank (3).

9. An ecological restoration method for geological disaster prevention and control, based on the ecological restoration system described in any one of claims 1 to 8, characterized in that, Comprising the following steps: Step 1, pumping the polluted water body into the sedimentation tank (1) through a water pump, and adjusting the switching baffle (121) so that the supernatant overflowing through the overflow port (12) enters the first biological treatment tank (2) or the second biological treatment tank (3); Step 2, after the supernatant in the first biological treatment tank (2) or the second biological treatment tank (3) undergoes biological treatment for a first preset duration, inputting the biologically treated supernatant into the corresponding first disinfection tank (41) or second disinfection tank (42) through the corresponding first water outlet (21) or second water outlet (31) for disinfection treatment; Step 3, after the water body input into the first disinfection tank (41) or the second disinfection tank (42) undergoes disinfection treatment for a second preset duration, discharging the disinfected water body.

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