A system and method for ecological restoration of polluted water quality in rivers and lakes

Abstract

The present application relates to the field of ecological environment governance, and to a system and method for ecological restoration of polluted water quality in rivers and lakes. The system comprises a hull, to which a sewage pump is fixedly connected, to which the feed end of the sewage pump is fixedly connected, to which a silt extraction pipe is fixedly connected, to which the end of the silt extraction pipe away from the sewage pump is fixedly connected, to which a protective pipe placed on the bottom of the lake is fixedly connected, to which a first filter screen is fixedly connected on the inner wall of the protective pipe, to which a second filter screen is rotatably mounted on the side wall of the protective pipe away from the silt extraction pipe, and to which a driving component for driving the second filter screen to rotate is mounted. A method for ecological restoration of polluted water quality in rivers and lakes comprises the following steps: using a grid with a reasonable mesh spacing to divide the rivers and lakes to be cleaned into regions; conducting a water ecological environment survey and a bottom sludge accumulation survey on each divided region; and driving the dredging boat to the construction area, and lowering positioning piles to fix the boat position. The present application improves the problem that sewage pumps are easily damaged.

Description

Technical Field

[0001] The present application relates to the field of ecological environment governance, and in particular to an ecological restoration system and method for water quality pollution in rivers and lakes. Background Art

[0002] At present, my country's environmental problems are very prominent. Although various factories have actively taken measures to control sewage discharge standards, the continuous pollution caused by wastewater discharged into rivers and lakes is still continuing. Although the surface area of ​​rivers and lakes is large, with the increase in sewage discharge, the dilution and purification capacity of river and lake water bodies has been greatly weakened and cannot bear the heavy burden, making the river and lake water bodies tend to be black, smelly and turbid, and deposited in the river channel, causing serious damage to the ecological environment of rivers and lakes. For the restoration of the ecological environment of rivers and lakes, the main methods currently used are dredging and greening planting.

[0003] For related technologies, reference may be made to the Chinese patent with announcement number CN207919622U, which discloses an ecological dredging equipment, including a hull, a sewage pump installed on the left side of the hull, a silt discharge port sleeved at the bottom end of the sewage pump, and a silt extraction pipe sealedly installed at the top of the sewage pump, a silt extraction port provided at the bottom end of the silt extraction pipe, a rotating motor provided on the right side of the sewage pump, a connecting rod fixedly connected to the top of the rotating motor, a reducer provided on the side of the connecting rod close to the rotating motor, and a rotating shaft movably connected to the other end of the connecting rod, a reamer welded on the outer wall of the rotating shaft, and a filter strip provided on the inner wall of the silt extraction port, so that large volumes of garbage in the riverbed sludge are blocked outside the silt extraction pipe to prevent the silt extraction pipe from being blocked.

[0004] With regard to the above-mentioned related technologies, after the silt extraction pipe has been used for a long time, large volumes of garbage such as stones and vegetation are likely to clog the filter strips at the silt extraction port. When there are many blockages on the filter strips, the silt cannot enter the silt extraction pipe from the silt extraction port, which can easily cause damage to the sewage pump. Summary of the invention

[0005] In order to improve the problem that sewage pumps are easily damaged, the present application provides a system and method for ecological restoration of polluted water quality in rivers and lakes.

[0006] In the first aspect, the present application provides a system for ecological restoration of polluted river and lake water quality, which adopts the following technical solutions:

[0007] A system for ecological restoration of polluted water quality in rivers and lakes comprises a hull, to which is fixedly connected a sewage pump, to which is fixedly connected a silt extraction pipe at the feed end of the sewage pump, to which is fixedly connected an end of the silt extraction pipe remote from the sewage pump, to which is fixedly connected a protective pipe placed on the bottom of a lake, to which is fixedly connected an inner wall of the protective pipe a first filter screen, to which is rotatably mounted a second filter screen on a side wall of the protective pipe remote from the silt extraction pipe, and to which is mounted a driving component for driving the second filter screen to rotate.

[0008] By adopting the above technical solution, when it is necessary to extract the silt, the silt enters the silt extraction pipe through the protective pipe, and the first filter screen and the second filter screen can both filter the stones and vegetation in the silt. When a large amount of large-volume garbage such as more stones and vegetation accumulates on the first filter screen and the second filter screen, the driving component is started, and the driving component drives the second filter screen to rotate, and the second filter screen can push away the stones, vegetation, etc. At this time, the first filter screen can still filter the silt, and the stones, vegetation, etc. cannot block the first filter screen and the second filter screen, thereby improving the problem that the sewage pump is easily damaged.

[0009] Preferably, a rotating shaft fixedly connected to the second filter screen is passed through the second filter screen, and the rotating shaft is passed through the side wall of the protection tube and is rotatably connected to the protection tube; the driving component includes a protection box fixedly connected to the protection tube, a battery and an electromagnet are fixedly connected in the protection box, and the battery and the electromagnet are electrically connected through a wire; a rack is slidably mounted on the inner wall of the protection box, a gear meshing with the rack is fixedly connected to the rotating shaft, and an iron sheet used in conjunction with the electromagnet is fixedly connected to the rack; a driving spring is fixedly connected to the rack, and the driving spring is fixedly connected to the protection box.

[0010] By adopting the above technical solution, when a large number of stones and vegetation are accumulated on the second filter, the battery is turned on, the battery energizes the electromagnet, the electromagnet attracts the iron sheet, the iron sheet drives the rack to move, the rack drives the gear to rotate, at this time the driving spring is in a stretched state, the gear drives the shaft to rotate, the shaft drives the second filter to rotate, thereby pushing the stones and vegetation away, reducing the operating steps of the staff and facilitating the operation of the staff.

[0011] Preferably, a control component for controlling the battery to power on and off the electromagnet is installed in the protective tube, and the control component includes a control shaft rotatably installed on the inner wall of the protective tube, a blade fixedly connected to the control shaft, and a sealing box fixedly connected to the protective tube; the control shaft extends into the sealing box, and a telescopic ring is sleeved on the control shaft, and multiple groups of centrifugal parts are evenly installed on the control shaft, and the multiple groups of centrifugal parts are all connected to the telescopic ring; a control block is slidably installed on the inner wall of the sealing box, and the control block is in contact with the telescopic ring. A switch moving piece electrically connected to the electromagnet through a wire is provided on the control block, and a switch stator electrically connected to the battery through a wire is provided on the inner wall of the sealing box; a rebound part connected to the control block is installed on the sealing box.

[0012] By adopting the above technical scheme, when the silt enters the protective pipe, the silt impacts the blades, causing the blades to rotate, and the blades drive the control shaft to rotate, the control shaft drives the centrifugal part to rotate, and the centrifugal part drives the telescopic ring to rotate. When stones and vegetation accumulate on the second filter screen, the silt passing through the second filter screen per unit time is reduced. Since the suction force of the sewage pump remains unchanged, the speed of the silt entering the protective pipe gradually increases, the impact force on the blades gradually increases, the speed of the control shaft gradually increases, the centrifugal part drives the radius of the telescopic ring to gradually increase, the telescopic ring pushes the control block to move, and the control block drives the switch movable plate to move. When the switch movable plate contacts the switch fixed plate, the battery can energize the electromagnet without the need for staff to operate, thereby reducing the staff's operating steps and being able to protect the sewage pump in time.

[0013] Preferably, the centrifugal component includes a centrifugal cylinder fixedly connected to the circumferential surface of the control shaft and a centrifugal rod fixedly connected to the telescopic ring, the centrifugal rod is inserted into the centrifugal cylinder, a centrifugal spring is fixedly connected to the inner wall of the centrifugal cylinder, and the centrifugal spring is fixedly connected to the centrifugal rod.

[0014] By adopting the above technical solution, during the rotation of the control shaft, the control shaft drives the centrifugal cylinder to rotate, and the centrifugal cylinder drives the centrifugal rod to rotate. When the speed of the control shaft increases, the centrifugal rod is moved toward the side away from the control shaft due to the centrifugal force. At this time, the centrifugal spring is in a stretched state, and the centrifugal rod drives the radius of the telescopic ring to gradually increase, thereby controlling the battery to energize the electromagnet, thereby improving the stability of the telescopic ring expansion and contraction.

[0015] Preferably, the telescopic ring comprises a first arc plate and a second arc plate both connected to the centrifugal member, a clamping groove with two ends passing therethrough is formed on the outer arc surface of the first arc plate, and both ends of the second arc plate are placed in the clamping groove.

[0016] By adopting the above technical solution, when the centrifugal component moves toward the side away from the control shaft, the centrifugal component drives the first arc plate and the second arc plate to move, and at the same time the second arc plate extends from the first arc plate, thereby increasing the radius of the telescopic ring formed by the first arc plate and the second arc plate, thereby improving the stability of the movement of the control block.

[0017] Preferably, the rebound member includes a rebound plate fixedly connected to the control block and a rebound spring fixedly connected to the rebound plate, and the rebound spring is fixedly connected to the sealing box.

[0018] By adopting the above technical solution, during the movement of the control block, the control block drives the rebound plate to move. At this time, the rebound spring is in a compressed state. When the radius of the telescopic ring becomes smaller, the rebound spring can drive the rebound plate to move, and the rebound plate drives the control block to move, thereby separating the switch moving plate from the switch fixed plate, which is convenient for continued use next time.

[0019] Preferably, a locking component for locking the control block is installed in the sealing box, and the locking component includes a locking block fixedly connected to the inner wall of the sealing box, a mounting groove is provided on the side wall of the locking block, a locking spring is fixedly connected to the inner wall of the mounting groove, a locking rod is placed in the mounting groove, and the locking rod is fixedly connected to the locking spring; a locking groove for inserting the locking rod is provided on the side wall of the control block, and a slope is formed on the end face of the locking rod facing the control block, and the slope can contact the side of the control block; a transmission component is installed in the sealing box, and the telescopic ring can drive the locking rod to disengage from the locking groove through the transmission component.

[0020] By adopting the above technical solution, during the movement of the control block, when the control block contacts the inclined surface, the control block can push the locking rod to move, and the locking rod compresses the locking spring. When the locking rod is opposite to the locking groove, the locking spring pushes the locking rod to insert into the locking groove, and the locking rod locks the control block, so that the switch moving plate and the switch fixed plate can continue to contact, thereby improving the stability of the rotation of the second filter and reducing the occurrence of the second filter being retracted when the flipping angle is small.

[0021] Preferably, the transmission component includes a first transmission rod slidably mounted on the inner wall of the sealing box, a second transmission rod rotatably mounted on the inner wall of the sealing box, and a third transmission rod slidably mounted on the inner wall of the sealing box; one end of the first transmission rod contacts the inclined surface, and the other end of the first transmission rod contacts the second transmission rod; both ends of the third transmission rod are fixedly connected with pull plates, and the two pull plates are respectively in contact with the second transmission rod and the telescopic ring.

[0022] By adopting the above technical solution, when the radius of the telescopic ring becomes smaller, the telescopic ring drives one of the pull plates to move, and this pull plate drives the third transmission rod to move, and the third transmission rod drives another pull plate to move, and this pull plate drives the second transmission rod to flip, and the second transmission rod drives the first transmission rod to move, and the first transmission rod pushes the locking rod to move through the inclined surface, so that the locking rod disengages from the locking groove, and the switch movable plate can be separated from the switch fixed plate, so that the second filter returns to the initial position, which is convenient for continued use next time.

[0023] Preferably, a first dovetail block is fixedly connected to the rack, a first dovetail groove is provided on the inner wall of the protection box, and the first dovetail block is placed in the first dovetail groove.

[0024] By adopting the above technical solution, the first dovetail block limits the movement trajectory of the rack, thereby improving the stability of the rack movement.

[0025] On the second aspect, the present application provides a method for ecological restoration of polluted river and lake water quality, which adopts the following technical solution.

[0026] A method for ecological restoration of polluted water quality in rivers and lakes, comprising the following steps:

[0027] Use grids with reasonable spacing to divide the rivers and lakes to be cleaned into regions;

[0028] Conduct water ecological environment surveys and sedimentation surveys in each divided area to determine the thickness of surface sediment that needs to be retained and the thickness of sedimentation that needs to be removed for ecological dredging in each area;

[0029] Drive the dredging vessel to the construction area and lower the positioning piles to fix the vessel position;

[0030] The water bottom depth is measured by an ultrasonic depth sounder equipped on the hull, and the measured data is transmitted to the control console in the cab;

[0031] According to the measured depth, the silt extraction pipe is lowered, and the protection pipe is kept in a horizontal state;

[0032] Start the sludge pump to pump the sludge into the hull;

[0033] The positioning pile is lifted, and the dredging vessel moves along the grid to the next position and repeats the above operation.

[0034] By adopting the above technical solution, when it is necessary to extract the silt, the silt extraction pipe and the protective pipe are first placed on the bottom of the lake, and the protective pipe is kept horizontal. The first filter screen and the second filter screen can both filter the stones and vegetation in the silt. When a large amount of stones, vegetation and other large-volume garbage accumulates on the first filter screen and the second filter screen, the second filter screen can push away the stones, vegetation, etc. without the need for staff to operate. At this time, the first filter screen can still filter the silt, and the stones, vegetation, etc. cannot block the first filter screen and the second filter screen, thereby improving the problem of easy damage to the sewage pump.

[0035] In summary, the present application includes at least one of the following beneficial technical effects:

[0036] 1. The present application is provided with a second filter screen by rotation. When the sludge needs to be extracted, the sludge enters the sludge extraction pipe through the protective pipe. Both the first filter screen and the second filter screen can filter the stones and vegetation in the sludge. When a large amount of garbage such as stones and vegetation is accumulated on the first filter screen and the second filter screen, the driving component is started, and the driving component drives the second filter screen to rotate. The second filter screen can push away the stones, vegetation, etc. At this time, the first filter screen can still filter the sludge, and the stones, vegetation, etc. cannot block the first filter screen and the second filter screen, thereby improving the problem that the sewage pump is easily damaged;

[0037] 2. The present application sets a battery, an electromagnet, a rack, an iron sheet and a gear. When a large number of stones and vegetation are accumulated on the second filter screen, the battery is turned on, the battery energizes the electromagnet, the electromagnet attracts the iron sheet, the iron sheet drives the rack to move, the rack drives the gear to rotate, at this time the driving spring is in a stretched state, the gear drives the shaft to rotate, the shaft drives the second filter screen to rotate, so that the stones and vegetation are pushed away, reducing the operating steps of the staff and facilitating the operation of the staff;

[0038] 3. The present application sets a control shaft, blades, centrifugal parts, telescopic rings, control blocks, switch movable plates and switch stators. When the silt enters the protective tube, the silt impacts the blades, causing the blades to rotate, and the blades drive the control shaft to rotate, and the control shaft drives the centrifugal parts to rotate, and the centrifugal parts drive the telescopic rings to rotate. When stones and vegetation accumulate on the second filter screen, the silt passing through the second filter screen per unit time is reduced. Since the suction force of the sewage pump remains unchanged, the speed of the silt entering the protective tube gradually increases, the impact force on the blades gradually increases, the speed of the control shaft gradually increases, the centrifugal parts drive the telescopic ring to gradually increase the radius, the telescopic ring pushes the control block to move, and the control block drives the switch movable plate to move. When the switch movable plate contacts the switch stator, the battery can energize the electromagnet without the need for staff to operate, thereby reducing the staff's operating steps and being able to protect the sewage pump in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic diagram of the overall structure of the ecological restoration system for river and lake water pollution according to an embodiment of the present application.

[0040] Figure 2 It is a schematic diagram of the structure of the second filter screen of an embodiment of the present application.

[0041] Figure 3 It is a schematic diagram of the structure of the driving component of an embodiment of the present application.

[0042] Figure 4 It is a schematic diagram of the structure of the rack of an embodiment of the present application.

[0043] Figure 5 It is a schematic diagram of the structure of the control component of an embodiment of the present application.

[0044] Figure 6 It is a schematic diagram of the structure of the telescopic ring of an embodiment of the present application.

[0045] Figure 7 It is a schematic structural diagram of the locking component of an embodiment of the present application.

[0046] Figure 8 It is a schematic diagram of the structure of the transmission component of an embodiment of the present application.

[0047] Explanation of reference numerals: 1. hull; 11. sewage pump; 12. sludge extraction pipe; 13. protective pipe; 14. first filter screen; 15. second filter screen; 151. rotating shaft; 2. driving component; 21. protective box; 211. first dovetail groove; 22. battery; 23. electromagnet; 24. rack; 241. first dovetail block; 25. gear; 26. iron sheet; 27. driving spring; 3. control component; 31. control shaft; 32. blade; 33. sealing box; 331. second dovetail groove; 332. third dovetail groove; 333. fourth dovetail groove; 34. telescopic ring; 341. first arc plate; 3411. snap-in groove ; 342, second arc plate; 35, centrifugal part; 351, centrifugal cylinder; 352, centrifugal rod; 353, centrifugal spring; 36, control block; 361, locking groove; 362, second dovetail block; 37, switch moving plate; 38, switch fixed plate; 39, rebound part; 391, rebound plate; 392, rebound spring; 4, locking part; 41, locking block; 411, mounting groove; 42, locking spring; 43, locking rod; 431, inclined plane; 5, transmission part; 51, first transmission rod; 511, third dovetail block; 52, second transmission rod; 53, third transmission rod; 531, fourth dovetail block; 54, pull plate. DETAILED DESCRIPTION

[0048] The following is combined with Figure 1-8 This application is described in further detail.

[0049] The present application embodiment discloses a system and method for ecological restoration of polluted water quality in rivers and lakes. Figure 1 and Figure 2The ecological restoration system for river and lake water pollution includes a hull 1, a driving component 2 and a control component 3; a sewage pump 11 is fixedly connected to the hull 1, and the discharge end of the sewage pump 11 is connected to the collecting cavity in the hull 1, and the feed end of the sewage pump 11 is fixedly connected to a silt extraction pipe 12, which is a round pipe and can be inserted into the bottom of the lake to transport silt; a protective pipe 13 is fixedly connected to the end of the silt extraction pipe 12 away from the sewage pump 11, and the protective pipe 13 is a square pipe and is horizontally placed on the bottom of the lake, and the silt enters the silt extraction pipe 12 from the protective pipe 13; a first filter 1 is fixedly connected to the inner wall of the protective pipe 13 away from the end of the silt extraction pipe 12 4. The four side walls of the first filter screen 14 are fixedly connected to the four inner walls of the protection tube 13, and the first filter screen 14 can filter the stones and garbage in the sludge; the protection tube 13 is provided with a second filter screen 15 at one end away from the sludge extraction tube 12, the second filter screen 15 is parallel to the first filter screen 14, and fits with the first filter screen 14, and a rotating shaft 151 fixedly connected to the second filter screen 15 is horizontally penetrated in the second filter screen 15, the rotating shaft 151 is penetrated on the inner wall of the protection tube 13, and is rotatably connected to the protection tube 13, the second filter screen 15 can be rotated to the outside of the protection tube 13, and the second filter screen 15 can also filter the stones and garbage in the sludge. The driving component 2 is installed on the protective tube 13. The driving component 2 can drive the second filter 15 to rotate. The second filter 15 can push away stones, vegetation, etc. At this time, the first filter 14 can still filter the silt, and stones, vegetation, etc. cannot block the first filter 14 and the second filter 15, thereby improving the problem that the sewage pump 11 is easily damaged; the control component 3 is installed on the protective tube 13. The control component 3 can control the opening and closing of the driving component 2 without the need for staff to operate, reducing the operating steps of the staff and improving the cleaning efficiency of the staff.

[0050] Reference Figure 3 and Figure 4The driving component 2 includes a protective box 21, a battery 22, an electromagnet 23, a rack 24, a gear 25, an iron sheet 26 and a driving spring 27; the protective box 21 is fixedly connected to the side wall of the protective tube 13, and a cavity is arranged inside the protective box 21; the battery 22 is fixedly connected to the inner wall of the protective box 21; the electromagnet 23 is fixedly connected to the inner wall of the protective box 21, and the electromagnet 23 and the battery 22 are electrically connected through a wire, and the control component 3 can control the battery 22 to cut off and energize the electromagnet 23, and the protective box 21 protects the battery 22; the rack 24 is slidably installed on the inner wall of the protective box 21, and a first dovetail block 241 is fixedly connected to the rack 24, and a first dovetail groove 211 is provided on the inner wall of the protective box 21, and the first dovetail block 241 is placed in the first dovetail groove 211, and the first dovetail block 241 limits the gear The movement trajectory of rack 24 improves the stability of the movement of rack 24; the rotating shaft 151 extends into the protective box 21, the gear 25 is sleeved on the rotating shaft 151 and fixedly connected to the rotating shaft 151, and the gear 25 is meshed with the rack 24; the iron sheet 26 is fixedly connected to the end face of the rack 24, the iron sheet 26 is used in conjunction with the electromagnet 23, the electromagnet 23 attracts the iron sheet 26, the iron sheet 26 drives the rack 24 to move, the rack 24 drives the gear 25 to rotate, the gear 25 drives the rotating shaft 151 to rotate, and the rotating shaft 151 drives the second filter 15 to rotate; the driving spring 27 is fixedly connected to the end face of the rack 24 away from the iron sheet 26, the driving spring 27 is fixedly connected to the protective box 21, the driving spring 27 is in a stretched state, and when the battery 22 cuts off the power to the electromagnet 23, the driving spring 27 drives the gear 25 to return to the initial position.

[0051] Reference Figure 2 and Figure 5The control component 3 includes a control shaft 31, blades 32, a sealing box 33, a centrifugal member 35, a telescopic ring 34, a control block 36, a switch moving plate 37, a switch fixed plate 38 and a rebound member 39; the control shaft 31 is rotatably mounted on the inner wall of the protection tube 13; the blades 32 are fixedly connected to the circumference of the control shaft 31, and a plurality of blades 32 are arranged and evenly distributed on the control shaft 31. When the sludge enters the protection tube 13, the sludge impacts the blades 32, causing the blades 32 to rotate, and the blades 32 drive the control shaft 31 to rotate. When rocks and vegetation accumulate on the second filter screen 15, the amount of sludge passing through the second filter screen 15 per unit time is reduced. Since the suction force of the sewage pump 11 remains unchanged, the speed of the sludge entering the protection pipe 13 gradually increases, the impact force on the blades 32 gradually increases, and the rotation speed of the control shaft 31 gradually increases; the sealing box 33 is fixedly connected to the side wall of the protection pipe 13, and the control shaft 31 extends into the sealing box 33; the centrifugal member 35 is fixedly connected to the circumferential surface of the control shaft 31, and a plurality of centrifugal members 35 are provided. In this embodiment, two groups of centrifugal members 35 are provided. The two groups of centrifugal parts 35 are symmetrically arranged along the axis of the control shaft 31, and the control shaft 31 drives the centrifugal parts 35 to rotate; the telescopic ring 34 is sleeved on the control shaft 31, and the telescopic ring 34 is connected to the two groups of centrifugal parts 35. When the speed of the control shaft 31 gradually increases, the centrifugal parts 35 can drive the radius of the telescopic ring 34 to gradually increase; the control block 36 is slidably installed on the inner wall of the sealing box 33, the control block 36 is in contact with the telescopic ring 34, and the telescopic ring 34 pushes the control block 36 to move; the switch moving piece 37 is arranged on the control block 36, and the switch moving piece 37 is in contact with the electromagnetic The electromagnet 23 is electrically connected through a wire, and the control block 36 drives the switch movable plate 37 to move; the switch stator 38 is arranged on the inner wall of the sealing box 33, and the switch stator 38 is electrically connected to the battery 22 through a wire. The switch stator 38 is used in conjunction with the switch movable plate 37. When the switch movable plate 37 contacts the switch stator 38, the battery 22 energizes the electromagnet 23; the rebound member 39 is installed on the sealing box 33, and the rebound member 39 is connected to the control block 36. The rebound member 39 can drive the control block 36 to return to the initial position, so as to facilitate continued use next time.

[0052] Reference Figure 6The centrifugal component 35 includes a centrifugal cylinder 351, a centrifugal rod 352 and a centrifugal spring 353; the centrifugal cylinder 351 is fixedly connected to the circumferential surface of the control shaft 31, and the control shaft 31 drives the centrifugal cylinder 351 to rotate; the centrifugal rod 352 is penetrated in the centrifugal cylinder 351, and the centrifugal rod 352 is fixedly connected to the telescopic ring 34, and the centrifugal cylinder 351 drives the centrifugal rod 352 to rotate; the centrifugal spring 353 is fixedly connected to the inner wall of the centrifugal cylinder 351, and the centrifugal spring 353 is fixedly connected to the centrifugal rod 352. When the speed of the control shaft 31 increases, the centrifugal rod 352 is moved toward the side away from the control shaft 31 by the centrifugal force. At this time, the centrifugal spring 353 is in a stretched state, and the radius of the telescopic ring 34 driven by the centrifugal rod 352 gradually increases.

[0053] The telescopic ring 34 includes a first arc plate 341 and a second arc plate 342, which are respectively fixedly connected to the centrifugal rod 352, and are both flexible plates; a clamping groove 3411 with two ends passing through is provided on the outer arc surface of the first arc plate 341, and the cross-section of the clamping groove 3411 is dovetail-shaped, and both ends of the second arc plate 342 are placed in the clamping groove 3411 and match the shape of the clamping groove 3411. The outer arc surface of the second arc plate 342 and the outer arc surface of the first arc plate 341 form a complete circle, and the second arc plate 342 can extend from the first arc plate 341, thereby increasing the radius of the circle formed by the first arc plate 341 and the second arc plate 342.

[0054] Reference Figure 6 and Figure 7 A second dovetail block 362 is fixedly connected to the side wall of the control block 36, a second dovetail groove 331 is provided on the inner wall of the sealing box 33, and the second dovetail block 362 is placed in the second dovetail groove 331. The second dovetail block 362 limits the movement trajectory of the control block 36, thereby improving the stability of the movement of the control block 36. The rebound member 39 includes a rebound plate 391 and a rebound spring 392. The rebound plate 391 is fixedly connected to the side wall of the control block 36, and the rebound spring 392 is fixedly connected to the rebound plate 391. The rebound spring 392 is fixedly connected to the sealing box 33. The control block 36 drives the rebound plate 391 to move. At this time, the rebound spring 392 is in a compressed state. When the radius of the telescopic ring 34 becomes smaller, the rebound spring 392 can drive the rebound plate 391 to move.

[0055] Reference Figure 7A locking component 4 is installed in the sealing box 33, and the locking component 4 includes a locking block 41, a locking spring 42 and a locking rod 43; the locking block 41 is fixedly connected to the inner wall of the sealing box 33, and a mounting groove 411 is provided on the side wall of the locking block 41 facing the control block 36; the locking spring 42 is fixedly connected to the inner wall of the mounting groove 411; the locking rod 43 is placed in the mounting groove 411 and fits with the inner wall of the mounting groove 411, and the locking rod 43 can slide along the mounting groove 411, the locking rod 43 is fixedly connected to the locking spring 42, and a locking groove 361 is provided on the side wall of the control block 36, and the locking rod 43 can be inserted into the locking groove 361, and the locking rod 43 locks the control block 36 The switch movable plate 37 and the switch fixed plate 38 are fixed so that they can be in continuous contact, thereby improving the rotation stability of the second filter screen 15 and reducing the occurrence of the second filter screen 15 being retracted when the flip angle is small; a slope 431 is formed on the end face of the locking rod 43 facing the control block 36, and the slope 431 can contact the side of the control block 36. During the movement of the control block 36, when the control block 36 contacts the slope 431, the control block 36 can push the locking rod 43 to move, and the locking rod 43 compresses the locking spring 42. When the locking rod 43 is opposite to the locking groove 361, the locking spring 42 pushes the locking rod 43 to be inserted into the locking groove 361, and no operation by the staff is required.

[0056] Reference Figure 6 and Figure 7 , a transmission component 5 is installed in the sealing box 33, and the transmission component 5 includes a first transmission rod 51, a second transmission rod 52, a third transmission rod 53 and two pull plates 54; the first transmission rod 51 is slidably installed on the inner wall of the sealing box 33, one end of the first transmission rod 51 is in contact with the inclined surface 431, and the first transmission rod 51 can push the locking rod 43 to move through the inclined surface 431, so that the locking rod 43 is disengaged from the locking groove 361, and when the radius of the telescopic ring 34 becomes smaller, the switch moving piece 37 is separated from the switch fixed piece 38; the second transmission rod 52 is rotatably installed on the inner wall of the sealing box 33, and one end of the second transmission rod 52 is far away from the first transmission rod 51 One end of the inclined surface 431 abuts; the third transmission rod 53 is slidably installed on the inner wall of the sealing box 33, and the third transmission rod 53 is parallel to the first transmission rod 51; two pull plates 54 are fixedly connected to the two ends of the third transmission rod 53, respectively, and the two pull plates 54 are in contact with the second transmission rod 52 and the telescopic ring 34, respectively. When the radius of the telescopic ring 34 becomes smaller, the telescopic ring 34 drives one of the pull plates 54 to move, and this pull plate 54 drives the third transmission rod 53 to move, and the third transmission rod 53 drives another pull plate 54 to move, and this pull plate 54 drives the second transmission rod 52 to flip, and the second transmission rod 52 drives the first transmission rod 51 to move.

[0057] Reference Figure 7 and Figure 8The first transmission rod 51 is fixedly connected to the third dovetail block 511, a third dovetail groove 332 is provided on the inner wall of the sealing box 33, the third dovetail groove 332 is parallel to the second dovetail groove 331, the third dovetail block 511 is placed in the third dovetail groove 332, and the third dovetail block 511 limits the movement trajectory of the first transmission rod 51; the third transmission rod 53 is fixedly connected to the fourth dovetail block 531, a fourth dovetail groove 333 is provided on the inner wall of the sealing box 33, the fourth dovetail groove 333 is parallel to the third dovetail groove 332, the fourth dovetail block 531 is placed in the fourth dovetail groove 333, and the fourth dovetail block 531 limits the movement trajectory of the third transmission rod 53.

[0058] The implementation principle of the ecological restoration system for water quality of river and lake water pollution in the embodiment of the present application is as follows: when it is necessary to extract sludge, the sludge enters the sludge extraction pipe 12 through the protective pipe 13, and the first filter screen 14 and the second filter screen 15 can filter the stones and vegetation in the sludge. The sludge impacts the blades 32, causing the blades 32 to rotate, and the blades 32 drive the control shaft 31 to rotate, the control shaft 31 drives the centrifugal cylinder 351 to rotate, the centrifugal cylinder 351 drives the centrifugal rod 352 to rotate, and the centrifugal rod 352 drives the first arc plate 341 and the second arc plate 342 to rotate; when a large volume of garbage such as more stones and vegetation is accumulated on the first filter screen 14 and the second filter screen 15, the sludge passing through the second filter screen 15 per unit time is reduced. Since the suction force of the sewage pump 11 remains unchanged, the speed of the sludge entering the protective pipe 13 gradually increases, the impact force on the blades 32 gradually increases, the speed of the control shaft 31 gradually increases, and the centrifugal rod 352 is affected by the centrifugal force The centrifugal spring 353 is stretched, and the centrifugal rod 352 drives the second arc plate 342 to extend from the first arc plate 341. The first arc plate 341 and the second arc plate 342 push the control block 36 to move. At this time, the rebound spring 392 is compressed, and the control block 36 drives the switch moving piece 37 to move. When the switch moving piece 37 contacts the switch fixed piece 38, the battery 22 energizes the electromagnet 23, and the electromagnet 23 attracts the iron sheet 26. The iron sheet 26 drives the rack 24 to move, and the rack 24 drives the gear 25 to rotate. At this time, the driving spring 27 is in a stretched state, and the gear 25 drives the rotating shaft 151 to rotate, and the rotating shaft 151 drives the second filter screen 15 to rotate. The second filter screen 15 can push away stones, vegetation, etc. At this time, the first filter screen 14 can still filter the silt, and stones, vegetation, etc. cannot block the first filter screen 14 and the second filter screen 15, thereby improving the problem that the sewage pump 11 is easily damaged.

[0059] During the movement of the control block 36, when the control block 36 contacts the inclined surface 431, the control block 36 can push the locking rod 43 to move, and the locking rod 43 compresses the locking spring 42. When the locking rod 43 is opposite to the locking groove 361, the locking spring 42 pushes the locking rod 43 to insert into the locking groove 361, and the locking rod 43 locks the control block 36, so that the switch movable plate 37 and the switch fixed plate 38 can continue to contact, thereby improving the stability of the rotation of the second filter 15.

[0060] When larger garbage such as stones and vegetation leaves the first filter screen 14, the amount of sludge passing through the first filter screen 14 per unit time increases, and the speed of the sludge entering the protective tube 13 gradually slows down, and the rotation speed of the control shaft 31 gradually slows down, and the centrifugal spring 353 drives the centrifugal rod 352 to move toward the side close to the control shaft 31, and the centrifugal rod 352 drives the first arc plate 341 and the second arc plate 342 to move, and the first arc plate 341 and the second arc plate 342 drive one of the pull plates 54 to move, and this pull plate 54 drives the third transmission rod 53 to move, and the third transmission rod 53 drives the other pull plate 54 to move. , this pull plate 54 drives the second transmission rod 52 to flip, the second transmission rod 52 drives the first transmission rod 51 to move, and the first transmission rod 51 pushes the locking rod 43 to move through the inclined surface 431, so that the locking rod 43 is disengaged from the locking groove 361; the rebound spring 392 drives the rebound plate 391 to move, and the rebound plate 391 drives the control block 36 to move, so that the switch moving plate 37 is separated from the switch fixed plate 38, the battery 22 cuts off the power to the electromagnet 23, and the driving spring 27 drives the rack 24 to move, so that the second filter 15 is re-fitted with the first filter 14, which is convenient for continued use next time.

[0061] The ecological restoration method for polluted river and lake water quality includes the following steps:

[0062] S1. Use grids with reasonable spacing to divide the rivers and lakes to be cleaned;

[0063] S2. Conduct water ecological environment surveys and sedimentation surveys in each divided area to determine the thickness of surface sediments to be retained and the thickness of sedimentation soil to be removed for ecological dredging in each area;

[0064] S3. Drive the dredging vessel to the construction area and lower the positioning piles to fix the vessel position;

[0065] S4, measuring the bottom depth by an ultrasonic depth sounder equipped on the hull 1, and transmitting the measured data to the control console in the cab;

[0066] S5. According to the measured depth, the silt extraction pipe 12 is lowered, and the protection pipe 13 is kept in a horizontal state;

[0067] S6, start the sewage pump 11 to pump the sludge into the hull 1;

[0068] S7. Lift the positioning pile, and the dredging boat moves along the grid to the next position, and repeat the above operation.

[0069] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A system for ecological restoration of polluted river and lake water, comprising a hull (1), a sewage pump (11) fixedly connected to the hull (1), a silt extraction pipe (12) fixedly connected to the feed end of the sewage pump (11), characterized in that: The end of the silt extraction pipe (12) away from the sewage pump (11) is fixedly connected to a protection pipe (13) placed on the lake bottom, the inner wall of the protection pipe (13) is fixedly connected to a first filter screen (14), the side wall of the protection pipe (13) away from the silt extraction pipe (12) is rotatably mounted with a second filter screen (15), and a driving component (2) for driving the second filter screen (15) to rotate is mounted on the protection pipe (13); A rotating shaft (151) fixedly connected to the second filter screen (15) is passed through the second filter screen (15), and the rotating shaft (151) is passed through the side wall of the protection tube (13) and is rotatably connected to the protection tube (13); the driving component (2) comprises a protection box (21) fixedly connected to the protection tube (13), a battery (22) and an electromagnet (23) are fixedly connected to the protection box (21), and the battery (22) and the electromagnet (23) are electrically connected through a wire; a rack (24) is slidably mounted on the inner wall of the protection box (21), a gear (25) meshing with the rack (24) is fixedly connected to the rotating shaft (151), and an iron sheet (26) used in conjunction with the electromagnet (23) is fixedly connected to the rack (24); a driving spring (27) is fixedly connected to the rack (24), and the driving spring (27) is fixedly connected to the protection box (21); A control component (3) for controlling the battery (22) to energize and de-energize the electromagnet (23) is installed in the protection tube (13), and the control component (3) comprises a control shaft (31) rotatably installed on the inner wall of the protection tube (13), a blade (32) fixedly connected to the control shaft (31), and a sealing box (33) fixedly connected to the protection tube (13); the control shaft (31) extends into the sealing box (33), a telescopic ring (34) is sleeved on the control shaft (31), and a plurality of centrifugal pumps (34) are evenly installed on the control shaft (31). Parts (35), multiple groups of the centrifugal parts (35) are connected to the telescopic ring (34); a control block (36) is slidably mounted on the inner wall of the sealing box (33), the control block (36) is in contact with the telescopic ring (34), a switch moving piece (37) electrically connected to the electromagnet (23) through a wire is arranged on the control block (36), and a switch stator (38) electrically connected to the battery (22) through a wire is arranged on the inner wall of the sealing box (33); a resilient part (39) connected to the control block (36) is mounted on the sealing box (33); A locking component (4) for locking the control block (36) is installed in the sealing box (33), the locking component (4) comprising a locking block (41) fixedly connected to the inner wall of the sealing box (33), a mounting groove (411) is provided on the side wall of the locking block (41), a locking spring (42) is fixedly connected to the inner wall of the mounting groove (411), a locking rod (43) is placed in the mounting groove (411), and the locking rod (43) and the locking spring (42) are connected to each other. 2) fixed connection; a locking groove (361) for inserting a locking rod (43) is formed on the side wall of the control block (36); an inclined surface (431) is formed on the end surface of the locking rod (43) facing the control block (36); the inclined surface (431) can contact the side edge of the control block (36); a transmission component (5) is installed in the sealing box (33), and the telescopic ring (34) can drive the locking rod (43) to disengage from the locking groove (361) through the transmission component (5).

2. The ecological restoration system for polluted river and lake water according to claim 1 is characterized by: The centrifugal component (35) comprises a centrifugal cylinder (351) fixedly connected to the circumferential surface of the control shaft (31) and a centrifugal rod (352) fixedly connected to the telescopic ring (34); the centrifugal rod (352) is inserted into the centrifugal cylinder (351); a centrifugal spring (353) is fixedly connected to the inner wall of the centrifugal cylinder (351); and the centrifugal spring (353) is fixedly connected to the centrifugal rod (352).

3. The ecological restoration system for polluted river and lake water according to claim 1 is characterized by: The telescopic ring (34) comprises a first arc plate (341) and a second arc plate (342) both connected to the centrifugal member (35); a clamping groove (3411) with two ends passing through is provided on the outer arc surface of the first arc plate (341); and both ends of the second arc plate (342) are placed in the clamping groove (3411).

4. The ecological restoration system for polluted river and lake water according to claim 1 is characterized by: The rebound member (39) comprises a rebound plate (391) fixedly connected to the control block (36) and a rebound spring (392) fixedly connected to the rebound plate (391); the rebound spring (392) is fixedly connected to the sealing box (33).

5. The ecological restoration system for polluted river and lake water according to claim 1 is characterized by: The transmission component (5) comprises a first transmission rod (51) slidably mounted on the inner wall of the sealing box (33), a second transmission rod (52) rotatably mounted on the inner wall of the sealing box (33), and a third transmission rod (53) slidably mounted on the inner wall of the sealing box (33); one end of the first transmission rod (51) contacts the inclined surface (431), and the other end of the first transmission rod (51) contacts the second transmission rod (52); both ends of the third transmission rod (53) are fixedly connected with pull plates (54), and the two pull plates (54) contact the second transmission rod (52) and the telescopic ring (34) respectively.

6. The ecological restoration system for polluted river and lake water according to claim 1 is characterized by: A first dovetail block (241) is fixedly connected to the rack (24), a first dovetail groove (211) is provided on the inner wall of the protection box (21), and the first dovetail block (241) is placed in the first dovetail groove (211).

7. A method for ecological restoration of polluted river and lake water, using a system for ecological restoration of polluted river and lake water according to any one of claims 1 to 6, characterized in that: The following steps are involved: Use grids with reasonable spacing to divide the rivers and lakes to be cleaned into regions; Conduct water ecological environment surveys and sedimentation surveys in each divided area to determine the thickness of surface sediment that needs to be retained and the thickness of sedimentation that needs to be removed for ecological dredging in each area; Drive the dredging vessel to the construction area and lower the positioning piles to fix the vessel position; The water bottom depth is measured by an ultrasonic depth sounder provided on the hull (1), and the measured data is transmitted to a control console in the driving cabin; According to the measured depth, the silt extraction pipe (12) is lowered, and the protection pipe (13) is kept in a horizontal state; Starting the sewage pump (11) to pump the sludge into the hull (1); The positioning pile is lifted, and the dredging vessel moves along the grid to the next position and repeats the above operation.

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