CN110886337B - Equipment and process for removing lake bottom overwintering blue algae seed source - Google Patents

Abstract

The invention discloses equipment and a process for removing lake bottom overwintering blue algae seed sources, wherein the process for removing the lake bottom overwintering blue algae seed sources comprises the following steps: natural coagulation sedimentation, reinforced sedimentation and mechanical dehydration. The equipment for realizing the process comprises at least 7 sealed cabins, a drawing head, a waterwheel, a three-dimensional traveling crane, an underwater traveling paddle wheel and a centrifugal machine, wherein the sealed cabins form a carrier platform, and the drawing head, the waterwheel, the three-dimensional traveling crane, the centrifugal machine and the underwater traveling paddle wheel are sequentially arranged on the carrier platform from left to right.

Description

Equipment and process for removing lake bottom overwintering blue algae seed source

Technical Field

The invention relates to a process for removing a source of blue algae overwintering on the lake bottom, which comprises natural coagulation sedimentation, enhanced sedimentation and mechanical dehydration.

The invention also relates to equipment for removing the overwintering blue algae seed source at the bottom of the lake, at least 7 sealed cabins, a suction head, a waterwheel, a three-dimensional traveling crane, an underwater traveling paddle wheel and a centrifugal machine.

Background

At present, more than 66% of key lakes and reservoirs in China are in the eutrophication level, wherein 22% of middle-rich nutrition and super-rich nutrition exist, the outbreak form of cyanobacterial bloom is increasingly severe, and especially, the great outbreak of cyanobacterial in the Taihu lake in 2007 draws great attention.

In recent years, China has rapidly progressed on the research aspect of the cause of the cyanobacterial bloom, researchers put forward a four-stage theory of the cyanobacterial bloom formation, and think that the cyanobacterial growth and the cyanobacterial bloom formation are subjected to 4 stages of overwintering dormancy, spring resuscitation, growth and aggregation floating. In the overwintering process, blue algae in the water body sinks to the surface of the bottom mud and survives in the bottom mud for a long time, and the blue algae rapidly breed and float and gather to form water bloom when beginning in spring. In order to restore a healthy lake water ecosystem and control the excessive propagation and growth of algae in a large area of water, many scholars study on the treatment or inhibition of cyanobacterial bloom. The treatment measures are mostly implemented after the water bloom outbreak, mainly comprising chemical treatment technologies, biological treatment technologies and the like, but the technologies have the defects, such as environmental pollution or ecological damage caused by the chemical treatment technologies inevitably; the biological treatment technology is not mature enough, and the species of the natural enemies of the screened algae are few. Therefore, the measures are taken for the provenance blue algae, the technology is a new treatment technology for treating the blue algae bloom, the blue algae bloom is killed in the process of overwintering and revival, and the method is used for effectively controlling the revival and reproduction of the blue algae provenance.

The overwintering blue-green algae is deposited in the active sediment layer on the surface layer of the lake bottom, the active sediment layer on the surface layer is drawn through circulating water flow, bottom sediment is not disturbed, the extracted mud-water mixture is separated and dehydrated, the clarified water is used as the circulating water flow for drawing water power, a large amount of mud and sand separated and precipitated are returned to the lake bottom, the original ecological structure of the lake bottom is not influenced, and the separated overwintering blue-green algae and heavy polluted organic matters can be transported outside after being concentrated.

The underwater flocculent surface sediment rich in the overwintering blue algae can be effectively removed quantitatively only by negative pressure suction, the sediment is sucked into a suction head by negative pressure and enters a conveying pipeline to be extracted onto a carrier platform, the whole suction head can fluctuate along with the topography of the water bottom in the advancing operation, so that the suction head can be attached to the water bottom, the suction efficiency is improved, the total mass of the equipment for removing the overwintering blue algae seed source at the lake bottom exceeds 100 tons in full-load operation, 10 underwater suction heads are dragged behind, and if the equipment is driven to drive the underwater flocculent objects and overcome underwater resistance, the traditional propeller propelling mode obviously cannot meet the requirements, so that a special underwater walking propeller wheel is designed to provide traction force for the equipment.

Disclosure of Invention

The invention aims to provide a lake bottom overwintering blue algae seed source removing process for removing lake bottom blue algae seed sources and delaying the scale and time of occurrence of lake bottom blue algae blooms in the next year.

Correspondingly, the invention also aims to provide equipment for removing lake bottom overwintering blue algae seed sources, which can remove lake bottom blue algae seed sources and delay the scale and time of occurrence of lake bottom blue algae blooms in the next year.

In order to achieve the purpose, the invention provides the following technical scheme: the lake bottom overwintering blue algae seed source removing equipment comprises at least 7 sealed cabins, a drawing head, a waterwheel, a three-dimensional traveling crane, an underwater traveling paddle wheel and a centrifugal machine, wherein a carrier platform is fixedly formed between the sealed cabins, and the drawing head, the waterwheel, the three-dimensional traveling crane, the centrifugal machine and the underwater traveling paddle wheel are sequentially arranged on the carrier platform from left to right. 7 independent sealed cabins connected end to end form a carrier platform, so that sinking danger can not occur when 2-3 cabins are damaged and leak water, the whole suction head can fluctuate along with the topography of the water bottom in the advancing operation, the suction head can be attached to the water bottom, the suction efficiency of blue algae seed sources is improved, a waterwheel circularly sucks a muddy water mixture in the sealed cabins, a water source is provided for a lake bottom overwintering blue algae seed source removing process, a closed mud grab bucket is driven by a chain below a three-dimensional travelling crane, the mud grab bucket is matched with the three-dimensional travelling crane to grab and cover the separated heavy substances such as sand grains and blue algae soil on the compact carrier platform and return to the lake bottom, a centrifugal machine is used for centrifuging the light substances and the overwintering blue algae seed sources, and an underwater travelling paddle wheel is used for providing power for the movement of the carrier platform.

As a preferred technical scheme, the suction head comprises a mud conveying pipe, a suction hopper and a bottom plate, one end of the mud conveying pipe is fixed with the carrier platform, the other end of the mud conveying pipe is connected with the suction hopper, and the suction hopper is arranged on the bottom plate; the waterwheel comprises a water tank, a fixing frame and a rolling shaft, wherein the water tank is arranged on the carrier platform, the fixing frame is arranged on the upper end face of the water tank, and the rolling shaft is arranged on the fixing frame. The mud conveying pipe is a channel for conveying the mud-water mixture, the mud-water mixture is conveyed to the carrier platform, the suction hopper and the bottom plate are part of an underwater suction cabin, the suction hopper is a shell and is fixed on the bottom plate, the water tank is fixed on the carrier platform and provides a semi-closed suction water tank for the waterwheel, the fixing frame is fixed on the water tank, conditions are provided for mounting the roller while the structure of the water tank is reinforced, and the roller performs force transmission for the operation of the whole waterwheel.

As a preferred technical scheme, the three-dimensional traveling crane comprises at least two groups of light rails, a wheel row shell, pulleys and at least two groups of support frames, wherein the light rails are arranged on two sides of a carrier platform, the pulleys are arranged below the wheel row shell, the wheel row shell slides on the light rails through the pulleys, and the support frames are arranged on the wheel row shell; the underwater walking paddle wheel comprises at least two groups of knuckle arms, a plurality of connecting rods and reinforcing arms, wherein the connecting rods are arranged between the two groups of knuckle arms, one ends of the knuckle arms are hinged with the carrier platform, the other ends of the knuckle arms are hinged with the reinforcing arms, and the other ends of the reinforcing arms are provided with semicircular grooves. Light rail installs in carrier platform both sides, provide the slip track for the bank of wheels shell, the pulley provides the slip basis for the bank of wheels shell, install the support frame on the bank of wheels shell, the support frame realizes longitudinal movement on carrier platform through the bank of wheels shell, the connecting rod is installed between the festival arm, play the effect of strengthening rib, the connecting rod is connected with the festival arm simultaneously and is formed a plurality of parallelogram structures, make the festival arm structure more firm when the pivoted, festival arm both ends are parallel joint, can make the strengthening arm can both keep the vertically state when the festival arm rotates wantonly, the strengthening arm is the transition piece of being connected between festival arm and the walking connecting axle.

As a preferred technical scheme, the drawing head further comprises at least two groups of traction cable chains, at least two groups of limiting cable chains, at least four groups of cable rings and at least two groups of side guard plates, wherein one group of cable rings are arranged on two sides of the carrier platform, one group of cable rings are arranged on the outer wall of the mud conveying pipe, the other two groups of cable rings are arranged on the outer wall of the drawing hopper, one end of each traction cable chain is connected with the cable rings on the carrier platform, the other end of each traction cable chain is connected with one group of cable rings on the drawing hopper, one end of each limiting cable chain is connected with the cable rings on the mud conveying pipe, the other end of each limiting cable chain is connected with the other group of cable rings on the drawing hopper, and the drawing hopper and the bottom plate are arranged between the. Drag cable chain one end is connected with the carrier platform, and the other end is connected with the drawing fill, makes whole drawing head along with carrier platform is together moved through drag cable chain when carrier platform moves, for drawing the head and providing the power that moves ahead, spacing cable chain one end is connected with mud conveying pipe, and the other end is connected with the drawing fill, can prevent through spacing cable chain that the water depth change or the too big problem of angle change between mud conveying pipe and the drawing fill that the topography variation arouses from appearing.

As preferred technical scheme, the waterwheel still includes dredging slide and driving chain, the roller bearing includes driving shaft and driven shaft, gear, bearing housing, first bearing, flat pad, spacing snap ring have set gradually toward both ends from the middle on the driving shaft, gear, axle sleeve, bearing housing, first bearing, flat pad, spacing snap ring have set gradually toward both ends from the middle on the driven shaft, the mount has set gradually dredging slide and bearing housing toward both ends from the middle, driving chain one end sets up on the driving shaft, and the other end setting of driving chain is on the driven shaft. The dredging sliding plate provides a dredging platform for the rotation of the transmission chain, prevents the middle part of the transmission chain from excessively falling to cause the collision with the fixed frame, the driving wheel and the driven wheel are used for the operation of the integral waterwheel to transmit force, four groups of gears are arranged on the driving shaft and the driven shaft, the transmission chain is rotated through the gears, the bearing is arranged in the bearing shell, the driving shaft is rotated in the bearing shell through the bearing, the shaft sleeve is arranged in the bearing shell, the driven shaft is rotated in the bearing shell through the shaft sleeve, the integral driven shaft is positioned in the muddy water mixture, if the common bearing is used on the driven shaft, the iron impurities and other impurities in the water can cause abrasion to the bearing, thereby not only affecting the normal use of the bearing, but also reducing the working efficiency, the shaft sleeve not only can replace the bearing to complete the work required to be completed by the bearing, but also can not, the first bearing is installed in the bearing shell outside, prescribes a limit to the position between driving shaft and bearing shell, driven shaft and the bearing shell, and the restriction of spacing snap ring is in the first bearing outside, carries out the position through spacing snap ring to the first bearing and prescribes a limit to, and the flat pad setting reduces the position error between spacing snap ring and the first bearing through the flat pad between spacing snap ring and the first bearing.

As a preferred technical scheme, the three-dimensional traveling crane further comprises a fixed frame, an I-shaped track, at least four groups of inclined struts and a single-rail trolley, wherein the fixed frame is arranged between the two groups of supporting frames, the I-shaped track is arranged below the fixed frame, the single-rail trolley is arranged on the I-shaped track, one ends of the inclined struts are fixed with the supporting frames, and the other ends of the inclined struts are fixed with the fixed frame; the underwater walking paddle wheel further comprises a walking connecting shaft, an outer casing, at least two groups of power machines and rolling bearings, the walking connecting shaft is fixed with the semicircular groove, the outer casing is arranged below the walking connecting shaft, the power machines are symmetrically arranged on two sides of the outer casing, and the rolling bearings are arranged on the walking connecting shaft. The mount sets up between the support frame, connect the support frame, the bracing is installed between mount and support frame, consolidate being connected between mount and the support frame, the I-shaped rail mounting is in the mount below, provide the track that slides for the single track dolly, realize the single track dolly in the removal on horizontal, the walking connecting axle is installed on strengthening the arm, the walking connecting axle realizes turning to through rolling bearing, outer shell is installed in the below of walking connecting axle and is installed the power machine, obtain the power that gos forward through the power machine.

As a preferred technical scheme, the walking connecting shaft comprises a middle shaft and a shaft tube, the rotating bearing comprises a bearing rotating shell piece, a bearing fixing shell piece and balls, the bearing rotating shell piece is arranged on the middle shaft, the bearing fixing shell piece is arranged on the shaft tube, a drainage groove is arranged between the bearing rotating shell piece and the bearing fixing shell piece, the bearing rotating shell piece and the bearing fixing shell piece are both provided with ball grooves, the balls are arranged in the ball grooves, the bearing rotating shell piece and the bearing fixing shell piece realize mutual matching rotation through the balls, and the middle shaft is in rolling connection with the shaft tube through the bearing rotating shell piece and the bearing fixing shell piece; the power machine comprises a power machine static body and a power machine dynamic body, wherein the power machine static body is arranged on the outer casing, the power machine static body provides rotation power for the power machine dynamic body, and the power machine dynamic body is provided with a paddle wheel. The bearing rotating shell piece is fixed on the middle shaft, the bearing fixing shell piece is fixed on the sleeve, when the bearing fixing shell piece and the bearing rotating shell piece work in a matched mode through the balls, a drainage groove is formed between the bearing rotating shell piece and the bearing fixing shell piece, when the balls rotate, impurities attached to the surfaces of the balls can flow out of the bearings along with water flow through the drainage groove, therefore, a process from suction to discharge of the impurities can be formed, the impurities cannot be accumulated at the bearings, irreversible damage to the bearings and the balls cannot be caused, the power machine static body is arranged on the outer sleeve shell, the power machine static body provides rotating power for the power machine dynamic body, the paddle wheel is arranged on the power machine dynamic body, and the paddle wheel realizes walking in water through the power machine dynamic body.

In order to achieve the purpose, the invention provides the following technical scheme: the lake bottom overwintering blue algae seed source removing process comprises the following steps:

1) natural coagulating sedimentation:

A. pouring the mud-water mixture extracted from the lake bottom into a container for sand sedimentation;

B. draining the muddy water mixture with the sand removed in the step A into another container for soil precipitation;

C. the precipitation time required by the step A and the step B is 9-10 min.

Preferably, the method comprises the following steps:

2) strengthening precipitation:

a. draining the mud-water mixture obtained after the mud sedimentation in the step 1) into other containers for strengthening sedimentation;

b. adding high-density active filler before or during the strengthening precipitation;

c. the high-density active filler adsorbs substances with lighter specific weight to clarify water, and microorganisms on the surface of the filler rapidly degrade adsorbed organic substances and soluble organic substances in water.

Preferably, the method comprises the following steps:

3) mechanical dehydration:

a. centrifuging the substances which are adsorbed and dropped and forcibly precipitated in the step 2) by adopting mechanical dehydration equipment;

b. and carrying out filter pressing and natural draining on the centrifuged substances, and then bagging and transporting the substances outside.

4) And finishing the operation.

Compared with the prior art, the invention has the beneficial effects that:

1. compared with a chemical treatment technology, the technology for removing the overwintering blue algae seed source at the bottom of the lake does not need to put chemical products into the lake, does not cause environmental pollution or ecological damage, and can ensure that the precipitated silt can be returned to the bottom of the lake without influencing the original ecological structure of the bottom of the lake; compared with biological treatment technology, algae does not need to be screened, so the lake-bottom overwintering cyanobacteria provenance removal technology is a novel treatment technology for treating cyanobacterial bloom, kills the cyanobacterial bloom in the overwintering and revival processes, and effectively controls the revival and reproduction of the cyanobacterial provenance.

2.7 independent sealed cabins connected end to end form a carrier platform, so that sinking danger can not occur when 2-3 cabins are damaged and leak water, the whole suction head can fluctuate along with the topography of the water bottom in the advancing operation, the suction head can be attached to the water bottom, the suction efficiency of blue algae seed sources is improved, a waterwheel circularly sucks a muddy water mixture in the sealed cabins, a water source is provided for the cleaning process of the blue algae seed sources overwintering at the lake bottom, a closed mud grab bucket is driven by a chain below a three-dimensional travelling crane, the mud grab bucket is matched with the three-dimensional travelling crane to grab and cover the lake bottom with heavier substances such as sand grains and soil after separation on the compact carrier platform, and the original ecological structure of the lake bottom is not influenced.

3. The carrier platform stern end obtains lakebed muddy water mixture through drawing the head, draws muddy water mixture through the waterwheel and makes the muddy water mixture water level in the carrier platform descend, and water level and lakebed level in the carrier platform form the water head, and under the effect of atmospheric pressure, lakebed muddy water mixture enters into the mud pipe through drawing the head, and carry again on the carrier platform, continuously draws lakebed muddy water mixture through the form of negative pressure, not only can not cause the destruction to lakebed ecosystem, and the efficiency of drawing also is higher than other modes of drawing.

Drawings

FIG. 1 is a schematic view of the overall structure of the equipment for removing the source of the overwintering cyanobacteria at the bottom of the lake;

FIG. 2 is a schematic view showing the connection between the suction head of the lake bottom overwintering cyanobacteria seed source removal equipment and the carrier platform;

FIG. 3 is a schematic view showing the connection of the bottom plate, the suction hopper and the side guard plate of the device for removing the overwintering cyanobacteria seed source at the bottom of the lake according to the present invention;

FIG. 4 is a schematic view showing the connection of a sludge conveying pipe, a slipknot outer ring and a limiting ring of the device for removing the overwintering cyanobacteria seed source at the bottom of the lake;

FIG. 5 is a schematic view showing the connection between the waterwheel and the carrier platform of the apparatus for removing the source of overwintering cyanobacteria in the lake bottom according to the present invention;

FIG. 6 is a schematic view showing the connection of the dredging slide plate, the driving shaft and the fixing frame of the device for removing the overwintering cyanobacteria seed source at the bottom of the lake according to the present invention;

FIG. 7 is a schematic view showing the connection of the driving shaft, gears, fixing frames, etc. of the device for removing the seed source of the overwintering cyanobacteria at the bottom of the lake according to the present invention;

FIG. 8 is a schematic view showing the connection of the driven shaft, gears, fixing frames, etc. of the equipment for removing the overwintering cyanobacteria seed source at the bottom of the lake according to the present invention;

FIG. 9 is a partial enlarged view of the area A (B) in FIG. 7(8) of the source removing equipment for overwintering cyanobacteria at the lake bottom according to the present invention;

FIG. 10 is a schematic view showing the connection between the bearing housing and the bearing (shaft sleeve) of the equipment for removing the source of the overwintering cyanobacteria at the bottom of the lake according to the present invention;

FIG. 11 is a schematic diagram of the transmission of gears and transmission chains of the equipment for removing the overwintering cyanobacteria seed source at the bottom of the lake;

FIG. 12 is the left view of the waterwheel of the clearing equipment for the source of overwintering cyanobacteria at the bottom of the lake according to the present invention;

FIG. 13 is a schematic view of the connection of a three-dimensional traveling crane and a carrier platform of the device for removing the source of the overwintering cyanobacteria at the lake bottom;

FIG. 14 is a three-dimensional front view of the device for removing the source of overwintering cyanobacteria at the bottom of a lake according to the present invention;

FIG. 15 is a schematic view showing the connection of a monorail trolley, an I-shaped rail, a vertical movement speed reducer and the like of the lake bottom overwintering cyanobacteria seed source clearing equipment of the present invention;

FIG. 16 is a schematic view showing the connection between the underwater walking paddle wheel and the carrier platform of the equipment for removing the seed source of the overwintering cyanobacteria at the bottom of the lake according to the present invention;

FIG. 17 is a schematic view showing the connection of the arms, the connecting rods, the trusses and the like of the lake bottom overwintering cyanobacteria seed source removing equipment of the present invention;

FIG. 18 is a schematic structural view of a reinforcing arm of the equipment for removing the overwintering cyanobacteria seed source at the bottom of the lake according to the present invention;

FIG. 19 is a schematic view of the construction of the walking connecting shaft of the equipment for removing the source of overwintering cyanobacteria at the bottom of the lake of the invention;

FIG. 20 is a schematic view showing the connection between the outer casing and the power machine of the apparatus for removing the source of overwintering cyanobacteria at the bottom of the lake according to the present invention;

FIG. 21 is a schematic view of the power machine structure of the equipment for removing the source of overwintering cyanobacteria at the bottom of the lake of the present invention;

FIG. 22 is a schematic view of a rotary bearing structure of the equipment for removing the overwintering cyanobacteria seed source at the bottom of the lake according to the present invention;

FIG. 23 is a schematic view showing the connection between the central axis and the outer jacket of the device for removing the source of overwintering cyanobacteria at the bottom of a lake according to the present invention;

FIG. 24 is a schematic view showing the connection between the paddle wheel and the anti-slip plate of the device for removing the source of the overwintering cyanobacteria at the bottom of the lake according to the present invention;

FIG. 25 is the top view of the reinforcing arm and walking connecting shaft of the equipment for removing the overwintering cyanobacteria seed source at the bottom of the lake.

1. A tapping head; 2. water wheel; 3. three-dimensional traveling; 4. an underwater walking paddle wheel; 5. a centrifugal machine; 7. sealing the chamber 1 #; 8. sealing the chamber 2 #; 9. sealing the chamber 3 #; 10. sealing the chamber 4 #; 11. sealing the chamber 5 #; 12. sealing the chamber 6 #; 13. sealing the chamber 7 #; 1-14, a mud conveying pipe; 1-15, a drawing hopper; 1-16, a bottom plate; 1-17, a drag chain; 1-18, a limiting cable chain; 1-19, a grommet; 1-20, side guard board; 1-21, slipknot outer ring; 1-22, a limit ring; 1-23, a water pump; 1-24, a reflux water pipe; 1-25, a water spraying pipe; 1-26 parts of water inlet; 1-27, water jet; 1-28, a sliding knife; 2-14, a water tank; 2-15, a fixing frame; 2-16, a roller; 2-17, dredging the sliding plate; 2-18, gear; 2-20, a transmission chain; 2-21, bearing shell; 2-22, a first bearing; 2-23, a driving shaft; 2-24, a driven shaft; 2-25, a bearing; 2-26, a clamping groove; 2-27, a snap ring; 2-28, flat cushion; 2-29, a limit snap ring; 2-30, shaft sleeve; 2-31, a keyway; 2-32, a motor; 2-33, a speed reducer; 2-34, a pressure ring; 2-35, a scraper; 3-14, light rail; 3-15, wheel row shell; 3-16, a pulley; 3-17, a support frame; 3-18, a fixing frame; 3-19, i-shaped rail; 3-20 parts of inclined strut; 3-21, a monorail trolley; 3-22, steel shaft; 3-23, a transverse moving motor; 3-24, a transverse movement speed reducer; 3-25, a sprocket; 3-26, a chain; 3-27, a vertical moving motor; 3-28, a vertical movement speed reducer; 3-29, a mud grab bucket; 3-30, spreading the chain; 3-31, folding the chains; 3-32, a longitudinal moving motor; 3-33, a longitudinal movement speed reducer; 4-14, knuckle arm; 4-15, connecting rod; 4-16, reinforcing arms; 4-17, a semicircular groove; 4-18, a travelling crane connecting shaft; 4-19, an outer casing; 4-20, a power machine; 4-21, a power machine static body; 4-22, a power machine mover; 4-23, paddle wheel; 4-24, the middle shaft; 4-25, axle tube; 4-26, a rotating bearing; 4-27, bearing rotating shell pieces; 4-28, bearing fixing shell pieces; 4-29, ball grooves; 4-30, balls; 4-31, a drain tank; 4-32, a sleeve; 4-33, a base; 4-34, trusses; 4-35, antiskid plate; 4-36, lock nut; 4-37, a steering rocker arm; 4-38, compression nut; 4-39 and a telescopic cylinder.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b): as shown in fig. 1-25, the equipment for removing the overwintering blue algae seed source at the bottom of the lake comprises at least 7 sealed cabins, a suction head 1, a waterwheel 2, a three-dimensional traveling vehicle 3, an underwater traveling paddle wheel 4 and a centrifugal machine 5, wherein a carrier platform 6 is fixedly formed between the sealed cabins, the suction head 1, the waterwheel 2, the three-dimensional traveling vehicle 3, the centrifugal machine 5 and the underwater traveling paddle wheel 4 are sequentially arranged on the carrier platform 6 from left to right, the sealed cabins comprise a sealed cabin 1#, a sealed cabin 2#, a sealed cabin 3#, a sealed cabin 4#, a sealed cabin 5#, a sealed cabin 6#, and a sealed cabin 7#, the sealed cabin 7# is used as a negative pressure cabin for storing a muddy water mixture, the suction head 1 is arranged below the negative pressure cabin, the waterwheel 2 is obliquely arranged in the negative pressure cabin at an angle of 35 degrees, the three-dimensional traveling vehicle can move between the sealed, the underwater walking paddle wheel 4 is fixed at the front end of the sealed cabin 1#, the equipment is provided with a power system, the power system comprises an electric power system and a hydraulic system, the electric power system provides electric power for the waterwheel 2, the three-dimensional travelling crane 3 and the centrifugal machine 5, and the hydraulic system provides hydraulic power for the underwater walking paddle wheel 4.

The suction head 1 comprises a mud conveying pipe 1-14, a suction hopper 1-15 and a bottom plate 1-16, one end of the mud conveying pipe 1-14 is fixed with the lower end of the sealed cabin 7# through a screw, the other end of the mud conveying pipe 1-14 is provided with a movable joint without a screw opening and is arranged on the suction hopper 1-15 and is rotatably connected with the suction hopper 1-15, and the suction hopper 1-15 is welded on the bottom plate 1-16; the waterwheel 2 comprises a water tank 2-14, a fixing frame 2-15 and rollers 2-16, wherein the lower end face of the water tank 2-14 is welded on the sealed cabin 7#, the upper end face of the water tank 2-14 is welded with the fixing frame 2-15, and the rollers 2-16 are welded on the fixing frame 2-15.

Preferably, the bottom plate 1-16 comprises water inlets 1-26, water spray ports 1-27 and sliding knives 1-28, the sliding knives 1-28 are welded at the bottom of the bottom plate 1-16 in an array mode, the sliding knives 1-28 divide the bottom plate 1-16 into a plurality of areas, the sliding knives 1-28 and one end of the bottom plate 1-16 are in an arc shape and are in a ski shape when viewed longitudinally, the water inlets 1-26 and the water spray ports 1-27 are arranged between the two groups of sliding knives 1-28, the water inlets 1-26 are positioned below the drawing buckets 1-15, and the water spray ports 1-27 are arranged at the tilting positions of the bottom plate 1-16.

Preferably, the mud conveying pipe 1-14 is a T-shaped pipe, the mud conveying pipe 1-14 comprises a slipknot outer ring 1-21 and a limiting ring 1-22, the outer wall of the T-shaped end of the mud conveying pipe 1-14 is provided with a step, the inner wall of the slipknot outer ring 1-21 is provided with a step, the T-shaped end of the mud conveying pipe 1-14 is provided with the slipknot outer ring 1-21 and the limiting ring 1-22 from the middle to the two ends, the T-shaped pipe of the mud conveying pipe 1-14 is provided with a threadless slipknot and is arranged on the suction hopper 1-15, the limiting ring 1-22 is positioned between the suction hopper 1-15 and the slipknot outer ring 1-21, the mud conveying pipe 1-14 is sealed with the suction hopper 1-15 through the slipknot outer ring 1-21 and the limiting ring 1-22, and the force transmission effect between the mud conveying pipe 1-14 and the suction hopper 1-15 is improved.

The three-dimensional traveling crane 3 comprises at least two groups of light rails 3-14, wheel row shells 3-15, pulleys 3-16 and at least two groups of support frames 3-17, the light rails 3-14 are fixed on two sides of a carrier platform 6 through fixing screws, the wheel row shells 3-15 comprise steel shafts 3-22, longitudinal movement motors 3-32 and longitudinal movement speed reducers 3-33, clamping grooves 2-26 are processed on the steel shafts 3-22, the steel shafts 3-22 firstly pass through a shell on one side of the wheel row shells 3-15, then pass through the pulleys 3-16 and then pass through a shell on the other side of the wheel row shells 3-15, clamping rings 2-27 are installed on the clamping grooves 2-26, the steel shafts 3-22 are fixed on the wheel row shells 3-15 through the clamping grooves 26 and the clamping rings 2-27, the steel shafts 3-22 extend out of the wheel row shells 3-15, the longitudinal movement speed reducer 3-33 is connected with a steel shaft 3-22 shaft and fixed through screws, a longitudinal movement motor 3-32 is fixed on the upper end face of a wheel bank shell 3-15 through screws, the longitudinal movement speed reducer 3-33 is fixed on the side end face of the wheel bank shell 3-15 through screws, the longitudinal movement motor 3-32 is connected with the longitudinal movement speed reducer 3-33 shaft and fixed through screws, the longitudinal movement motor 3-32 realizes the sliding of the wheel bank shell 3-15 on a light rail 3-14 through pulleys 3-16, a support frame 3-17 penetrates through the upper end face of the wheel bank shell 3-16 and is positioned inside the wheel bank shell 3-15, and the support frame 3-17 is fixed on the wheel bank shell 3-15 through screws; the underwater walking paddle wheel 4 comprises at least two groups of knuckle arms 4-14, a plurality of connecting rods 4-15 and reinforcing arms 4-16, the connecting rods 4-15 are fixed between the two groups of knuckle arms 4-14 through screws, sleeves 4-32 are welded at one ends of the knuckle arms 4-14 close to the sealed cabin 1#, bases 4-33 are welded at one ends of the knuckle arms 4-14 close to the reinforcing arms 4-16, the bases 4-33 are welded at the front end of the sealed cabin 1#, the sleeves 4-32 are hinged with the bases 4-33 through screws, the knuckle arms 4-14 are hinged with the carrier platform 6 through the sleeves 4-32 and the bases 4-33, the sleeves 4-32 are also welded at one ends of the reinforcing arms 4-16 close to the knuckle arms 4-14, the other ends of the knuckle arms 4-14 are hinged with the reinforcing arms 4-16 through the sleeves 4-32 and the bases 4-33, the other end of the reinforcing arm 4-16 is processed with a semicircular groove 4-17.

As a preferred embodiment, trusses 4-34 are fixed above the knuckle arms 4-14, the trusses 4-34 are trapezoid when viewed longitudinally, the trusses 4-34 fix the connection between the knuckle arms 4-14, pulleys are fixed on the upper screws of the trusses 4-34, the carrier platform 6 is stabilized into a triangular stable structure through the driving diagonal braces, the upright posts and the slots, the carrier platform and the trusses 4-34 are fixed through chain locks or steel ropes, and the whole underwater walking paddle wheel 4 is lifted or lowered through the pulleys.

The dip head 1 also comprises at least two groups of traction cable chains 1-17, at least two groups of limiting cable chains 1-18, at least four groups of cable rings 1-19 and at least two groups of side guard plates 1-20, one group of cable rings 1-19 are welded on both sides of the carrier platform 6, one group of cable rings 1-19 are welded on the outer wall of the mud conveying pipe 1-14, the other two groups of cable rings 1-19 are welded on the outer wall of the dip bucket 1-15, one end of the traction cable chain 1-17 is connected with the cable rings 1-19 on the carrier platform 6 through cable buckles, the other end of the traction cable chain 1-17 is connected with one group of cable rings 1-19 on the dip bucket 1-15 through cable buckles, one end of the limiting cable chains 1-18 is connected with the cable rings 1-19 on the mud conveying pipe 1-15 through cable buckles, the other end of the limiting cable chains 1-18 is connected with the other group of cable rings 1-19 on the dip bucket, the suction hopper 1-15 and the bottom plate 1-16 are arranged between the two groups of side protection plates 1-20, the side end surface of the suction hopper 1-15 and the side end surface of the bottom plate 1-16 are welded with the side protection plates 1-20, and the suction hopper 1-15 and the bottom plate 1-16 form a relatively closed suction cabin.

As a preferred embodiment, the dip head 1 also comprises water pumps 1-23, water return pipes 1-24 and water spray pipes 1-25, the water pumps 1-23 are fixed on the carrier platform 6 through screws, one end of each water return pipe 1-24 is in interference connection with the water pumps 1-23 and is further fixed by iron wires, the water return pipes 1-24 are fixed on the outer walls of the mud conveying pipes 1-14 through the iron wires, the other ends of the water return pipes 1-24 are fixed with the water spray pipes 1-25 through screws, the water spray pipes 1-25 are fixed on the upper end surfaces of the bottom plates 1-16 and are just above the water spray ports 1-27, water spray through holes are processed on the end surfaces of the water spray pipes 1-25, which are in contact with the bottom plates 1-16, clean water on the carrier platform 6 of the water pumps 1-23 is pumped and is conveyed into the water spray pipes 1-25 through the water, the spray pipes 1-25 spray clean water out through the water spray ports 1-27 and wash lake bottom sludge in front of the bottom plates 1-16, so that the sludge is mixed with the lake water, and the lake bottom sludge-water mixture is conveniently sucked by the water inlet ports 1-26.

The waterwheel 2 also comprises dredging sliding plates 2-17 and transmission chains 2-20, the rolling shafts 2-16 comprise driving shafts 2-23 and driven shafts 2-24, gears 2-18, bearings 2-25, bearing shells 2-21, first bearings 2-22, flat pads 2-28 and limit snap rings 2-29 are sequentially arranged on the driving shafts 2-23 from the middle to the two ends, the first bearings 2-22 are ordinary bearings such as needle bearings and thrust bearings, key grooves 2-31 are processed at the middle parts of the driving shafts 2-23, clamping grooves 2-26 are processed at the two ends, key grooves 2-31 are processed on the inner walls of the gears 2-18, the driving shafts 2-23 are fixedly connected with the gears 2-18 through the key grooves 2-31, the gears 2-18 and the driving shafts 2-23 can keep synchronous rotation through the key grooves 2-31, the driving shaft 2-23 is welded with bearings 2-25 towards two ends, the bearings 2-25 are arranged in the bearing shells 2-21, the first bearing 2-22 is sleeved on the driving shaft 2-23 and positioned outside the bearing shells 2-21, the limit snap ring 2-29 is fixed on the driving shaft 2-23 through a clamping groove 2-26, the flat pad 2-28 is positioned between the limit snap ring 2-29 and the first bearing 2-22, the driven shaft 2-24 is provided with a gear 2-18, a shaft sleeve 2-30, a bearing shell 2-21, the first bearing 2-22, a flat pad 2-28 and a limit snap ring 2-29 from the middle to two ends in sequence, the middle part of the driven shaft 2-24 is provided with a key groove 2-31, the clamping grooves 2-26 are arranged at two ends, the driven shaft 2-24 is fixedly connected with the gear 2-18 through the key grooves 2-31, the gears 2-18 and the driven shafts 2-24 can keep synchronous rotation through the key grooves 2-31, the driven shafts 2-24 are welded with shaft sleeves 2-30 from two ends, the shaft sleeves 2-30 are installed inside the bearing shells 2-21, the first bearings 2-22 are sleeved on the driven shafts 2-24 and located on the outer sides of the bearing shells 2-21, the limiting snap rings 2-29 are fixed on the driven shafts 2-24 through the clamping grooves 2-26, the flat pads 2-28 are located between the limiting snap rings 2-29 and the first bearings 2-22, the dredging sliding plates 2-17 and the bearing shells 2-21 are sequentially welded on the fixed frames 2-15 from the middle to two ends, one ends of the transmission chains 2-20 are installed on the gears 2-18 of the driving shafts 2-23, and the other ends of the transmission chains 2-20 are installed on the gears 2-18 of the driven shafts 2-24.

As a preferred embodiment, four clamping grooves 2-26 are processed on the inner wall of the bearing shell 2-21, the bearing 2-25 (the shaft sleeve 2-30) is installed inside the bearing shell 2-21, the position of the bearing 2-25 (the shaft sleeve 2-30) is fixed through two middle clamping rings 2-27, and the oil seal is performed between the driving shaft 2-23 (the driven shaft 2-24) and the bearing shell 2-21 through two outer clamping rings 2-27.

Preferably, the waterwheel 2 also comprises a motor 2-32 and a speed reducer 2-33, one end of the driving shaft 2-23 extends out of the limit snap ring 2-29 and is connected with the speed reducer 2-33 through a shaft and fixed through a screw, and the other end of the speed reducer 2-33 is connected with the motor 2-32 through a shaft and fixed through a screw.

As a preferred embodiment, the transmission chain 2-20 comprises a press ring 2-34 and scrapers 2-35, the transmission chain 2-20 is fixed with the press ring 2-34 through screws, the scrapers 2-35 are fixed at the middle position of the press ring 2-34 through a fixing pin, the length and width of the scrapers 2-35 are the same as the length and width of the inner wall of the water tank 2-14, the scrapers 2-35 are driven to travel in the water tank 2-14 when the transmission chain 2-20 rotates, a semi-closed space is formed in the water tank 2-14 by the mutual cooperation of the scrapers 2-35 and the water tank 2-14, the muddy water mixture in the negative pressure cabin can be stored through the semi-closed space and transported when the transmission chain 2-20 rotates, the muddy water mixture in the negative pressure cabin can be continuously pumped and transported through the rotation of the transmission chain 2-20.

The three-dimensional travelling crane 3 also comprises a fixed frame 3-18, I-shaped rails 3-19, at least four groups of inclined struts 3-20 and a single-rail trolley 3-21, wherein the fixed frame 3-18 is arranged between the two groups of supporting frames 3-17, the I-shaped rails 3-19 are arranged below the fixed frame 3-18, the single-rail trolley 3-21 is arranged on the I-shaped rails 3-19, one ends of the inclined struts 3-20 are fixed with the supporting frames 3-17, and the other ends of the inclined struts 3-20 are fixed with the fixed frame 3-18; the underwater walking paddle wheel 4 also comprises a walking connecting shaft 4-18, an outer casing 4-19, at least two groups of power machines 4-20 and rotating bearings 4-26, wherein the walking connecting shaft 4-18 is fixed with the semicircular grooves 4-17, the outer casing 4-19 is arranged below the walking connecting shaft 4-18, the power machines 4-20 are symmetrically arranged at two sides of the outer casing 4-19, the rotating bearings 4-26 are arranged on the walking connecting shaft 4-18, the power machines 4-20 are machines for converting electric energy and potential energy into mechanical energy, such as hydraulic motors, electric motors and the like, and the underwater walking paddle wheel 4 of the equipment uses the hydraulic motors.

Preferably, the fixing frame 3-18 comprises a transverse moving motor 3-23, a transverse moving speed reducer 3-24, a chain wheel 3-25 and a chain 3-26, the transverse moving motor 3-23 is fixed at one end of the fixing frame 3-18 by a screw, the transverse moving motor 3-23 is connected with the transverse moving speed reducer 3-24 by a shaft and fixed by a screw, a steel shaft 3-22 is fixed on the transverse moving speed reducer 3-24 by a screw, the steel shaft 3-22 is horizontally welded at one end of the fixing frame 3-18 far away from the transverse moving motor 3-23, the two steel shafts 3-22 are on the same horizontal line, the chain wheels 3-25 are all installed on the steel shafts 3-22, the chain 3-26 is installed on the chain wheel 3-25, and two ends of the chain 3-26 are fixed with the monorail trolley 3-21, the transverse moving motor 3-23 realizes the transverse movement of the monorail trolley 3-21 on the I-shaped track through the chain 3-26.

Preferably, the monorail trolley 3-21 comprises a vertical moving motor 3-27, a vertical moving speed reducer 3-28, a mud grab bucket 3-29, an opening chain 3-30 and a folding chain 3-31, the vertical moving speed reducer 3-28 is fixed below the monorail trolley 3-21 through screws, the vertical moving speed reducer 3-28 is connected with the vertical moving motor 3-27 through a shaft and is fixed through screws, the vertical moving speed reducer 3-28 penetrates through a steel shaft 3-22, the opening chain 3-30 and the folding chain 3-31 are fixed at two ends of the steel shaft 3-22 through screws, the opening chain 3-30 and the folding chain 3-31 are fixed with the mud grab bucket 3-29 through screws, the folding chain 3-31 is fixed with the center position of the mud grab bucket 3-29, the opening chain 3-30 is fixed with two ends of the mud grab bucket 3-29, the closing chain 3-31 is wound when the vertical moving motor 3-27 rotates forwards, the closing chain 3-31 drives the mud grab bucket 3-29 to ascend, the mud grab bucket 3-29 is closed under the action of gravity, the opening chain 3-30 is wound when the vertical moving motor 3-27 rotates backwards, and the opening chain 3-30 drives the mud grab bucket 3-29 to descend to open the mud grab bucket 3-29.

Preferably, the walking connecting shaft 4-18 comprises a middle shaft 4-24 and a shaft tube 4-25, the rotating bearing 4-26 comprises a bearing rotating shell piece 4-27, a bearing fixing shell piece 4-28 and balls 4-30, the bearing rotating shell piece 4-27 is welded on the middle shaft 4-24, the bearing fixing shell piece 4-28 is welded on the shaft tube 4-25, a drainage groove 4-31 is arranged between the bearing rotating shell piece 4-27 and the bearing fixing shell piece 4-28, the bearing rotating shell piece 4-27 and the bearing fixing shell piece 4-28 are both provided with ball grooves 4-29, the balls 4-30 are placed in the ball grooves 4-29, the bearing rotating shell piece 4-27 and the bearing fixing shell piece 4-28 realize the mutual matching rotation through the balls 4-30, the middle shaft 4-24 realizes the mutual matching rotation through the bearing rotating shell piece 4-27 and the bearing fixing shell piece 4-28 Now in rolling connection with the shaft tube 4-25; the power machine 4-20 comprises a power machine static body 4-21 and a power machine moving body 4-22, the power machine static body 4-21 is fixed on an outer casing 4-19 through screws, the power machine static body 4-21 provides rotating power for the power machine moving body 4-22, the power machine moving body 4-22 is fixed with a paddle wheel 4-23 through screws, and in order to improve the traction force of the paddle wheel 4-23, an anti-skid plate 4-35 is welded on the outer wall of the paddle wheel 4-23.

As a preferred embodiment, the reinforcing arm 4-16 comprises a telescopic cylinder 4-39, the walking connecting shaft 4-18 further comprises a locking nut 4-36, a steering rocker arm 4-37, a compression nut 4-38, the locking nut 4-36, the steering rocker arm 4-37 and the compression nut 4-38 are sequentially sleeved on the center shaft 4-24 from top to bottom, the locking nut 4-36 and the compression nut 4-38 are fixed on the center shaft 4-24 through threads, the steering rocker arm 4-37 is placed between the locking nut 4-36 and the compression nut, a key groove is processed on the inner wall of the steering rocker arm 4-37, which is in contact with the center shaft 4-24, the steering rocker arm 4-37 synchronously rotates with the center shaft 4-24 through the key groove and a flat key, the telescopic cylinder 4-39 is welded on the side end face of the reinforcing arm 4-16, the telescopic cylinder 4-39 and the steering rocker arm 4-37 are hinged through screws, the telescopic cylinder 4-39 in the device obtains telescopic power through a hydraulic system, and the steering rocker arm 4-37 is controlled to rotate through the telescopic cylinder 4-39 so as to realize rotation between the middle shaft 4-24 and the shaft tube 4-25.

The lake bottom overwintering blue algae seed source removing process comprises the following steps:

step 1, natural coagulation and precipitation:

A. pouring the mud-water mixture extracted from the lake bottom into a sealed cabin 6# for sand sedimentation;

B. draining the muddy water mixture subjected to sand removal in the step A into another sealed cabin 5# for soil precipitation;

C. the precipitation time required by the step A and the step B is 9-10 min.

The flow rate of the water passing through the cabins is 300m3/h, the volume of each cabin is 48.6m3, and 9-10 min is needed from sand sedimentation to soil sedimentation.

Step 2, strengthening precipitation:

a. draining the mud-water mixture subjected to the mud precipitation in the step 1 into a sealed cabin 4# to 2# for enhanced precipitation;

b. adding high-density active filler before or during the strengthening precipitation;

c. the high-density active filler adsorbs substances with lighter specific weight to clarify water, and microorganisms on the surface of the filler rapidly degrade adsorbed organic substances and soluble organic substances in water.

And a further optimization step, namely placing a polyethylene net in the sealed cabins 4# to 2# for strengthening precipitation, putting the high-density active filler on the polyethylene net, wherein the polyethylene net plays a role in adsorbing and blocking blue algae sources and lighter substances in water, and quickly degrading adsorbed organic matters and organic matters dissolved in the water through microorganisms on the surface of the high-density active filler, so that the effect of strengthening precipitation is further improved.

The high-density active filler is selected, the high-density active filler can be an X-Phos material, the X-Phos material can generate a hydroxyl radical intermediate in the reaction process with water, the substance is one of the strongest oxidants in the nature, research shows that the hydroxyl radical has excellent oxidation effect on organic matters of bottom mud of rivers and lakes, and the prepared granular X-Phos material can play a role in strengthening and degrading organic matters of sediments for a long time when applied to a water body.

The high-density active filler can use active carbon, the interior of the active carbon has a plurality of pores, if the pores in each gram of the active carbon are spread, the internal pores can reach 500-1700 square meters, and the active carbon has excellent adsorption capacity due to the unique internal structure because the pores can adsorb fine substances in various liquids and remove pollutants such as organic matters, heavy metals, radioactivity and the like during filtration.

Step 3, mechanical dehydration:

a. centrifuging the substances which are adsorbed and dropped and forcibly precipitated in the step 2) by adopting mechanical dehydration equipment;

b. and carrying out filter pressing and natural draining on the centrifuged substances, and then bagging and transporting the substances outside.

The working principle of the lake bottom overwintering blue algae seed source removing equipment is as follows: the stern end of the carrier platform 6 is fixed with the suction head 1, the stern end of the carrier platform 6 is provided with a negative pressure cabin, the suction head 1 conveys the mud-water mixture into the negative pressure cabin through the mud pipes 1-14, the waterwheel 2 circularly extracts the mud-water mixture in the negative pressure cabin, the water level in the negative pressure cabin drops to form a water level difference with the lake surface, under the action of atmospheric pressure, the lake bottom mud-water mixture enters the suction cabin through the water inlets 1-26 and is conveyed into the negative pressure cabin again through the mud pipes 1-14, the lake bottom original ecological structure cannot be damaged by circularly sucking the mud-water mixture from the lake bottom in a negative pressure mode, and the suction efficiency of the mud-water mixture is relatively high.

The water wheel 2 conveys the mud-water mixture to a sealed cabin 6# for sand sedimentation, an inverted siphon is welded between the sealed cabin 2# and the sealed cabin 6# for hydraulic communication between the sealed cabins through the inverted siphon, the mud-water mixture subjected to sand sedimentation is guided to the sealed cabin 5# for soil sedimentation through the inverted siphon, after 9-10 min, the mud-water mixture subjected to soil sedimentation is guided to the sealed cabin 4# 2# for enhanced sedimentation, after the enhanced sedimentation is finished, light substances and overwintering blue-green algae sources are pumped to a centrifugal machine 5 for centrifugation and compression, the three-dimensional travelling wheel 3 is fixed on the carrier platform 6, the three-dimensional travelling wheel 6 drives a mud grab bucket to realize three-dimensional movement, the heavy substances separated and deposited at the bottom of the cabin are grabbed and removed and returned to the lake bottom, the underwater travelling paddle wheel 4 is fixed at the front end of the carrier platform 6, the carrier platform 6 moves in the water through the underwater walking paddle wheel 4.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (6)

1. The lake bottom overwintering blue algae seed source removing equipment comprises at least 7 sealed cabins, a drawing head (1), a waterwheel (2), a three-dimensional traveling vehicle (3), an underwater traveling paddle wheel (4) and a centrifugal machine (5), wherein a carrier platform (6) is fixedly formed between the sealed cabins, and the drawing head (1), the waterwheel (2), the three-dimensional traveling vehicle (3), the centrifugal machine (5) and the underwater traveling paddle wheel (4) are sequentially arranged on the carrier platform (6) from left to right;

the three-dimensional travelling crane (3) comprises at least two groups of light rails (3-14), wheel row shells (3-15), pulleys (3-16) and at least two groups of support frames (3-17), wherein the light rails (3-14) are arranged on two sides of a carrier platform (6), the pulleys (3-16) are arranged below the wheel row shells (3-15), the wheel row shells (3-15) slide on the light rails (3-14) through the pulleys (3-16), and the support frames (3-17) are arranged on the wheel row shells (3-15); the underwater walking paddle wheel (4) comprises at least two groups of knuckle arms (4-14), a plurality of connecting rods (4-15) and reinforcing arms (4-16), the connecting rods (4-15) are arranged between the two groups of knuckle arms (4-14), one ends of the knuckle arms (4-14) are hinged with the carrier platform (6), the other ends of the knuckle arms (4-14) are hinged with the reinforcing arms (4-16), and the other ends of the reinforcing arms (4-16) are provided with semicircular grooves (4-17);

the three-dimensional travelling crane (3) further comprises a fixed frame (3-18), I-shaped rails (3-19), at least four groups of inclined struts (3-20) and a single-rail trolley (3-21), wherein the fixed frame (3-18) is arranged between the two groups of supporting frames (3-17), the I-shaped rails (3-19) are arranged below the fixed frame (3-18), the single-rail trolley (3-21) is arranged on the I-shaped rails (3-19), one ends of the inclined struts (3-20) are fixed with the supporting frames (3-17), and the other ends of the inclined struts (3-20) are fixed with the fixed frame (3-18); the underwater walking paddle wheel (4) further comprises a walking connecting shaft (4-18), an outer casing (4-19), at least two groups of power machines (4-20) and rotating bearings (4-26), the walking connecting shaft (4-18) is fixed with the semicircular grooves (4-17), the outer casing (4-19) is arranged below the walking connecting shaft (4-18), the power machines (4-20) are symmetrically arranged on two sides of the outer casing (4-19), and the rotating bearings (4-26) are arranged on the walking connecting shaft (4-18);

the walking connecting shaft (4-18) comprises a middle shaft (4-24) and a shaft tube (4-25), the rotating bearing (4-26) comprises a bearing rotating shell piece (4-27), a bearing fixing shell piece (4-28) and balls (4-30), the bearing rotating shell piece (4-27) is arranged on the middle shaft (4-24), the bearing fixing shell piece (4-28) is arranged on the shaft tube (4-25), a drainage groove (4-31) is arranged between the bearing rotating shell piece (4-27) and the bearing fixing shell piece (4-28), the bearing rotating shell piece (4-27) and the bearing fixing shell piece (4-28) are both provided with ball grooves (4-29), the balls (4-30) are arranged in the ball grooves (4-29), the bearing rotating shell pieces (4-27) and the bearing fixing shell pieces (4-28) are matched with each other through balls (4-30) to rotate, and the middle shaft (4-24) is in rolling connection with the shaft tube (4-25) through the bearing rotating shell pieces (4-27) and the bearing fixing shell pieces (4-28); the power machine (4-20) comprises a power machine static body (4-21) and a power machine dynamic body (4-22), the power machine static body (4-21) is arranged on the outer casing (4-19), the power machine static body (4-21) provides rotating power for the power machine dynamic body (4-22), and a paddle wheel (4-23) is arranged on the power machine dynamic body (4-22).

2. The lake bottom overwintering cyanobacteria seed source clearing device as claimed in claim 1, characterized in that: the suction head (1) comprises a mud conveying pipe (1-14), a suction hopper (1-15) and a bottom plate (1-16), one end of the mud conveying pipe (1-14) is fixed with the carrier platform (6), the other end of the mud conveying pipe (1-14) is connected with the suction hopper (1-15), and the suction hopper (1-15) is arranged on the bottom plate (1-16); the water wheel (2) comprises a water tank (2-14), a fixing frame (2-15) and rollers (2-16), wherein the water tank (2-14) is arranged on the carrier platform (6), the fixing frame (2-15) is arranged on the upper end face of the water tank (2-14), and the rollers (2-16) are arranged on the fixing frame (2-15).

3. The lake bottom overwintering cyanobacteria seed source clearing equipment as claimed in claim 1 or 2, characterized in that: the dip head (1) also comprises at least two groups of traction cable chains (1-17), at least two groups of limiting cable chains (1-18), at least four groups of cable rings (1-19) and at least two groups of side protection plates (1-20), one group of cable rings (1-19) are arranged on two sides of the carrier platform (6), one group of cable rings (1-19) are arranged on the outer wall of the mud conveying pipe (1-14), the other two groups of cable rings (1-19) are arranged on the outer wall of the dip bucket (1-15), one end of each traction cable chain (1-17) is connected with the cable rings (1-19) on the carrier platform (6), the other end of each traction cable chain (1-17) is connected with one group of cable rings (1-19) on the dip bucket (1-15), one end of each limiting cable chain (1-18) is connected with the cable rings (1-19) on the mud conveying pipe (1-15), the other end of the limiting cable chain (1-18) is connected with another group of cable rings (1-19) on the drawing bucket (1-15), and the drawing bucket (1-15) and the bottom plate (1-16) are arranged between the two groups of side guard plates (1-20).

4. The lake bottom overwintering cyanobacteria seed source clearing equipment as claimed in claim 1 or 2, characterized in that: the water wheel (2) further comprises a dredging sliding plate (2-17) and a transmission chain (2-20), the rolling shaft (2-16) comprises a driving shaft (2-23) and a driven shaft (2-24), gears (2-18), bearings (2-25), bearing shells (2-21), first bearings (2-22), flat pads (2-28) and limiting snap rings (2-29) are sequentially arranged on the driving shaft (2-23) from the middle to two ends, gears (2-18), shaft sleeves (2-30), bearing shells (2-21), first bearings (2-22), flat pads (2-28) and limiting snap rings (2-29) are sequentially arranged on the driven shaft (2-24) from the middle to two ends, the dredging sliding plate (2-17) and the bearing shells (2-20) are sequentially arranged on the fixed frame (2-15) from the middle to two ends 21) One end of the transmission chain (2-20) is arranged on the driving shaft (2-23), and the other end of the transmission chain (2-20) is arranged on the driven shaft (2-24).

5. The lake bottom overwintering blue algae seed source removing process is characterized by comprising the following steps: the cleaning process comprises the following steps:

1) natural coagulating sedimentation:

A. pouring the mud-water mixture extracted from the lake bottom into a container for sand sedimentation;

B. draining the muddy water mixture with the sand removed in the step A into another container for soil precipitation;

C. the precipitation time required by the step A and the step B is 9-10 min;

2) strengthening precipitation:

a. draining the mud-water mixture obtained after the mud sedimentation in the step 1) into other containers for strengthening sedimentation;

b. adding high-density active filler before or during the strengthening precipitation;

c. the high-density active filler adsorbs substances with lighter specific weight to clarify water, and microorganisms on the surface of the filler rapidly degrade adsorbed organic substances and soluble organic substances in water.

6. The process for removing the lake bottom overwintering cyanobacteria seed source as claimed in claim 5, wherein the process comprises the following steps: the method also comprises the following steps:

3) mechanical dehydration:

a. centrifuging the substances which are adsorbed and dropped and forcibly precipitated in the step 2) by adopting mechanical dehydration equipment;

b. carrying out filter pressing and natural draining on the centrifuged substances, and then bagging and transporting the substances;

4) and finishing the operation.

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