CN110835175B

CN110835175B - Equipment for physical precipitation separation and mechanical dehydration of lake-bottom blue algae

Info

Publication number: CN110835175B
Application number: CN201911235404.8A
Authority: CN
Inventors: 柯凡; 李文朝; 冯慕华; 刁飞; 潘继征
Original assignee: Nanjing Institute of Geography and Limnology of CAS
Current assignee: Nanjing Institute of Geography and Limnology of CAS
Priority date: 2019-12-05
Filing date: 2019-12-05
Publication date: 2021-06-15
Anticipated expiration: 2039-12-05
Also published as: CN110835175A

Abstract

The invention discloses equipment for physical precipitation separation and mechanical dehydration of lake-bottom blue algae, which comprises a carrier, a three-dimensional travelling crane and a centrifuge, wherein the carrier is provided with the three-dimensional travelling crane, the carrier is provided with the centrifuge, the equipment is scientific and reasonable, the use is safe and convenient, the carrier is provided with cabins for physically precipitating the lake-bottom blue algae, the cabins are used for separating and precipitating the lake-bottom blue algae, the separated heavier substances are deposited at the bottom of the cabin, the three-dimensional travelling crane is used for grabbing and removing the heavier substances deposited at the bottom of the cabin and covering the lake bottom, the lighter substances are separated from overwintering blue algae sources and are centrifugally separated and concentrated by the centrifuge and then transported outside, and the lake-bottom blue algae sources can be cleaned by the equipment, so that the scale and the time for occurrence of the lake-bottom blue algae bloom in the next year are.

Description

Equipment for physical precipitation separation and mechanical dehydration of lake-bottom blue algae

Technical Field

The invention relates to the technical field of physical precipitation separation and mechanical dehydration, in particular to equipment for physical precipitation separation and mechanical dehydration of lake-bottom blue algae.

Background

The cyanobacteria sinks and lies dormant in winter, mainly exists on the surface layer of sediments in a local lake area, and the large-scale engineering equipment is expected to be developed to remove lake-bottom cyanobacteria sources before the cyanobacteria recovery season, so that the scale and time of occurrence of the cyanobacteria bloom of the lake are delayed in the next year.

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 by circulating water flow, bottom sediment is not disturbed, the extracted mud-water mixture is separated and dehydrated, a large amount of silt separated and precipitated is returned to the lake bottom, the original ecological structure of the lake bottom is not influenced, the separated overwintering blue-green algae and heavy polluted organic matters can be transported outside after being concentrated, blue-green algae, dead residues and active sediment are removed, and great benefits are provided for preventing algae-derived lake flooding in local water areas and reducing the release of nutritive salt of the sediment.

Disclosure of Invention

The invention aims to provide equipment for physical precipitation separation and mechanical dehydration of lake-bottom blue algae, so as to solve the problems in the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: the equipment for physical precipitation separation and mechanical dehydration of the lake-bottom blue algae comprises a carrier, a three-dimensional travelling crane and a centrifuge, wherein the carrier is provided with the three-dimensional travelling crane, and the carrier is provided with the centrifuge. The carrier is provided with cabins for physically precipitating the lake bottom blue algae, the cabins separate and precipitate the lake bottom blue algae, heavy substances after separation are deposited at the bottom of the cabins, the three-dimensional travelling crane grabs and removes the heavy substances deposited at the bottom of the cabins and returns to the bottom of the lakes, the original ecological structure of the lake bottom is not affected, the light substances comprise overwintering blue algae sources, the heavy substances are separated and concentrated by a centrifugal machine and then are transported outside, the lake bottom blue algae sources can be cleared by the equipment, the scale and time of occurrence of the lake bottom blue algae bloom in the whole lake in the coming year are delayed, and great benefits are provided for preventing local water area algae-derived lake flooding and reducing release of bottom sludge nutritive salt.

As a preferred technical scheme, the carrier comprises a mud settling cabin, the mud settling cabin is arranged on the carrier, and a desilting cabin and an adsorption cabin are respectively arranged on the left side and the right side of the mud settling cabin; the three-dimensional traveling crane comprises at least two groups of light rails, pulleys and pulley shells, wherein the light rails are arranged on a carrier, the pulleys are arranged below the pulley shells, and the pulley shells slide on the light rails through the pulleys. The desilting cabin carries out first filtration process to lake water that the lake bottom was absorb and is come up, gives the filtration to the sand grain that the quality is heavier, and the desilting cabin carries out the second and filters the process, carries out physical precipitation to the bed mud in lake water, and the adsorption cabin carries out the third and filters the process, adsorbs the sediment to the blue alga provenance in lake water, and the pulley shell passes through the pulley and slides on the light rail, and the pulley shell provides the fixed mounting basis for the support frame.

According to the preferable technical scheme, the left side and the right side of the sediment cabin are provided with siphons, the sediment cabin pours lake water into the sediment cabin through the siphons, the sediment cabin pours the lake water into the adsorption cabins through the siphons, and the adsorption cabins are at least three groups. When the desilting cabin is filled with lake water, the lake water in the desilting cabin is introduced into the desilting cabin through the siphon principle of the siphon, and after the desilting cabin is filled with the lake water, the lake water is introduced into the adsorption cabin through the siphon again.

According to a preferable technical scheme, the three-dimensional traveling crane comprises at least two groups of light rails, pulleys, a pulley shell, at least two groups of supporting frames, a fixing frame, a steel shaft, a motor and a gearbox, wherein the light rails are arranged on a carrier, the gearbox is arranged on the pulley shell, one end of the gearbox is connected with the motor shaft, the other end of the gearbox is connected with the steel shaft, the steel shaft is fixed below the pulley shell, the pulleys are arranged on the steel shaft, the motor realizes the pulley shell to slide on the light rails through the pulleys, the supporting frames are arranged on the upper end face of the pulley shell, and the fixing frame is fixed at the top ends of the two adjacent groups of. The support frame is fixed on the pulley shell, obtains the longitudinal movement basis through the pulley shell, and the motor is connected with the gearbox, obtains the output rotational speed that needs through the gearbox, and the motor provides the power of longitudinal movement for the support frame, and the mount is fixed on adjacent two sets of support frame tops, carries out fixed connection to two sets of support frames, provides fixed basis for the I-shaped track simultaneously.

According to the preferable technical scheme, an inclined strut is fixed to the lower end face of the fixing frame, the other end of the inclined strut is fixed to the supporting frame, a traction speed reducer is arranged at one end of the fixing frame, one end of the traction speed reducer is connected with a traction motor shaft, a steel shaft is fixed to one end, far away from the traction motor, of the steel shaft, a chain wheel is fixed to the end, away from the traction speed reducer, of the steel shaft, a traction chain is arranged on the chain wheel, an I-shaped rail is fixed to the lower portion of the fixing frame, a monorail trolley is arranged on the I-shaped rail, one end of the traction chain is fixed to the monorail trolley, and the traction motor. The inclined strut is fixed with the fixing frame and the supporting frame, the three are connected to form a triangular structure, the connection between the fixing frame and the supporting frame is reinforced through the inclined strut, the traction motor is connected with the traction speed reducer, the output rotating speed required by traction is obtained through the traction speed reducer, the traction motor provides power for the transverse movement of the monorail trolley on the I-shaped track, the steel shaft provides an installation foundation for the chain wheel, meanwhile, the force transmission is carried out for the traction motor, the chain wheel rolls the traction chain, the traction chain carries out the force transmission, and the monorail trolley is enabled to carry out the transverse movement.

According to the preferable technical scheme, a speed reducer is arranged below the monorail trolley and is fixedly provided with a motor, a steel shaft is arranged on one side, away from the motor, of the speed reducer, chain wheels are fixedly arranged at two ends of the steel shaft, and an opening chain and a closing chain are respectively arranged on the chain wheels. The motor obtains required output rotation speed through the speed reducer, the motor provides power for the mud grab bucket to open and close, and simultaneously provides power for the mud grab bucket to rise and fall, the steel shaft penetrates through the speed reducer, the chain wheels are installed on two sides of the steel shaft, the steel shaft transmits force and drives the chain wheels to rotate together, the chain wheels wind the open chain when the motor rotates forwards to open the mud grab bucket, the chain wheels wind the close chain when the motor rotates backwards to close the mud grab bucket, enough length is reserved for the open chain and the close chain, and the chain wheels cannot influence each other when working.

As a preferred technical scheme, one end of the opening chain is arranged at two ends of the mud grab, and one end of the closing chain is arranged in the middle of the mud grab. The two ends of the opening chain are fixed on the two sides of the mud grab bucket, when the middle part of the opening chain is lifted, the positions, connected with the mud grab bucket, of the two ends of the opening chain can generate an upward acting force F under the traction of the middle part, meanwhile, the positions, connected with the mud grab bucket, of the opening chain can generate a downward acting force G under the influence of the gravity of the mud grab bucket, the mud grab bucket is slowly opened along with the rising of the opening chain under the influence of the acting force F and the acting force G, the two ends of the folding chain are fixed at the middle position of the mud grab bucket, when the folding chain is lifted from the middle position, the middle position of the mud grab bucket is lifted along with the traction force of the folding chain, and the two ends of the mud grab bucket can be folded towards the middle under.

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

1. the desilting cabin carries out a first filtering procedure on lake water sucked from the lake bottom, sand grains with heavier mass are filtered off, the desilting cabin carries out a second filtering procedure, physically precipitating the bottom mud in the lake water, performing a third filtering process on the adsorption cabin to perform adsorption precipitation on the blue algae seed source in the lake water, the cabins separate and precipitate the blue algae at the bottom of the lake, the separated heavier substances are deposited at the bottom of the cabins, the three-dimensional travelling crane grabs and removes the heavier substances deposited at the bottom of the cabins and returns to the bottom of the lake without influencing the original ecological structure of the lake, the lighter substances including overwintering blue algae seed sources are separated and then are transported out after being centrifugally separated and concentrated by a centrifugal machine, the equipment can remove the blue algae sources at the bottom of the lake, delay the scale and time of occurrence of the cyanobacterial blooms of the lake in the next year, and has great benefits for preventing the cyanobacterial sources in local water areas from flooding and reducing the release of nutritive salts of bottom mud.

2. The chain wheel winds the opened chain when the motor rotates forwards, two ends of the opened chain are fixed to two sides of the mud grab bucket, when the middle part of the opened chain is lifted, upward acting force F can be generated at the position where two ends of the opened chain are connected with the mud grab bucket under the traction of the middle part, downward acting force G is generated at the position where the opened chain is connected with the mud grab bucket under the influence of gravity of the mud grab bucket, the mud grab bucket is slowly opened along with the rising of the opened chain under the influence of the acting force F and the acting force G, the chain wheel winds the closed chain when the motor rotates backwards, two ends of the closed chain are fixed to the middle position of the mud grab bucket, when the closed chain is lifted from the middle position, the middle position of the mud grab bucket is lifted along with the traction force of the closed chain, and two ends of the mud grab bucket can be closed towards the middle under the acting force of the.

Drawings

FIG. 1 is a schematic diagram showing the overall structure of the apparatus for physical precipitation separation and mechanical dehydration of blue algae at the bottom of a lake according to the present invention;

FIG. 2 is a left side view of the apparatus for physical precipitation separation and mechanical dehydration of blue algae at the bottom of a lake according to the present invention;

FIG. 3 is a schematic view showing the connection of pulley shells, pulleys and steel shafts of the equipment for physical precipitation separation and mechanical dehydration of lake bottom blue algae according to the present invention;

FIG. 4 is a front view of the apparatus for physical precipitation separation and mechanical dehydration of blue algae at the bottom of a lake according to the present invention;

FIG. 5 is a schematic view of the connection of the monorail trolley, the I-shaped track, the speed reducer and the like of the equipment for physical precipitation separation and mechanical dehydration of the blue algae at the bottom of the lake;

FIG. 6 is a schematic view showing the connection of the opened chain, the folded chain and the sludge grab bucket of the equipment for physical precipitation separation and mechanical dehydration of blue algae at the bottom of a lake.

1. A carrier; 3. a centrifuge; 4. a desilting cabin; 5. a mud settling chamber; 6. an adsorption compartment; 7. a siphon tube; 8. a light rail; 9. a pulley; 10. a pulley housing; 11. a support frame; 12. a fixed mount; 13. bracing; 14. an I-shaped rail; 15. a monorail trolley; 16. a speed reducer; 17. a motor; 18. a steel shaft; 19. a sprocket; 20. opening the chain; 21. folding the chains; 22. a mud grab bucket; 23. a motor; 24. a gearbox; 25. a traction motor; 26. a traction speed reducer; 27. and a drag chain.

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 figures 1-6, the equipment for physical precipitation separation and mechanical dehydration of the blue algae at the lake bottom comprises a carrier 1, a three-dimensional travelling crane and a centrifuge 3, wherein the three-dimensional travelling crane is fixed on the carrier 1, and the centrifuge 3 is fixed on the upper end surface of the front end of the carrier 1 through screws.

The carrier 1 comprises a silt settling cabin 5, the silt settling cabin 5 is welded inside the carrier 1, and the left side and the right side of the silt settling cabin 5 are respectively welded with a silt settling cabin 4 and an adsorption cabin 6; the three-dimensional traveling crane comprises at least two groups of light rails 8, pulleys 9 and pulley shells 10, wherein the light rails 8 are fixed on two sides of a carrier 1 through screws, the pulleys 9 are fixed below the pulley shells 10 through steel shafts 18, and the pulley shells 10 slide on the light rails 8 through the pulleys 9.

Siphon 7 has been welded to the left and right sides on silt deposit cabin 5, two siphon 7 have all been welded to each side, 7 one ends of siphon are long, one end is short, between silt deposit cabin 4 and silt deposit cabin 5, 7 short one ends of siphon are put in silt deposit cabin 4, long one end is put in silt deposit cabin 5, silt deposit cabin 4 pours into silt through siphon 7 in silt deposit cabin 5, between silt deposit cabin 5 and

adsorption tanks

6, 7 short one ends of siphon are put in silt deposit cabin 5, long one end is put in adsorption tanks 6, silt deposit cabin 5 pours into adsorption tanks 6 through siphon 7 with lake water, adsorption tanks 6 are three groups at least, 7 mounting means of siphon between adsorption tanks 6 are the same with silt deposit cabin 4, the mounting means between silt deposit cabin 5.

The three-dimensional traveling crane comprises at least two groups of light rails 8, pulleys 9, pulley shells 10, at least two groups of support frames 11, a fixing frame 12, three groups of steel shafts 18, a motor 23 and a gearbox 24, wherein the three groups of steel shafts 18 comprise a first steel shaft, a second steel shaft and a third steel shaft, the light rails 8 are fixed on a carrier 1 through screws, the gearbox 24 is fixed on the end face of the side of the pulley shell 10 through screws, one end of the gearbox 24 is connected with the motor 23 through a shaft and fixed through screws, the other end of the gearbox 24 is connected with the first steel shaft through a shaft and fixed through screws, the first steel shaft is arranged below the pulley shell 10 through a shaft hole, a clamping ring groove is machined on the surface of the first steel shaft, the first steel shaft is fixed on the pulley shell through a clamping ring groove and a spring piece, the pulleys 9 are fixed on the first steel shaft through screws, one end of the first steel shaft extends out of the pulley shell 10, the motor 23 realizes the sliding of the pulley shell 10, the fixed frame 12 is fixed on the top ends of the two adjacent groups of supporting frames 11 through screws.

One end of an inclined strut 13 is fixed on the lower end face of a fixing frame 12 through screws, the other end of the inclined strut 13 is fixed with a support frame 11 through screws, a traction speed reducer 26 is fixed on one end of the fixing frame 12 through screws, one end of the traction speed reducer 26 is connected with a traction motor 25 shaft and is fixed through screws, a second steel shaft is fixed on one end of the traction speed reducer 26 far away from the traction motor 25 through screws, a first chain wheel is fixed on one end of the second steel shaft far away from the traction speed reducer 26 through a clamping ring groove and a spring piece, a traction chain 27 is fixed on the first chain wheel through screws, an I-shaped rail 14 is fixed below the fixing frame 12 through screws, a single-rail trolley 15 is installed on the I-shaped rail 14, one end of the traction chain 27 is fixed with the single-rail trolley 15 through screws, and the traction.

A speed reducer 16 is fixed below the monorail trolley 15 through screws, the speed reducer 16 is connected with a motor 17 shaft and fixed through screws, a third steel shaft is fixed on one side, far away from the motor 17, of the speed reducer 16 and completely penetrates through the speed reducer 16, chain wheels 19 are fixed at two ends of the third steel shaft through clamping ring grooves and spring pieces, an opening chain 20 and a closing chain 21 are fixed on the chain wheels 19 through screws respectively, one end of the opening chain 20 is fixed at two ends of a mud grab bucket 22 through screws, and one end of the closing chain 21 is fixed in the middle of the mud grab bucket 22 through screws.

The working principle of the invention is as follows: the front end of the carrier 1 is fixedly provided with a centrifugal machine 3, the centrifugal machine 3 carries out centrifugal separation on overwintering blue algae sources, a desilting cabin 4, a desilting cabin 5 and an adsorption cabin 6 are welded inside the carrier 1, a siphon tube 7 is arranged between the desilting cabin 4 and the desilting cabin 5, one end of the siphon tube 7 is long and the other end is short, the short end of the siphon tube 7 is arranged in the desilting cabin 4, the long end is arranged in the desilting cabin 5, the desilting cabin 4 pours lake water into the desilting cabin 5 through the siphon tube 7, the siphon tube 7 is arranged between the desilting cabin 5 and the adsorption cabin 6, the short end of the siphon tube 7 is arranged in the desilting cabin 5, the long end is arranged in the adsorption cabin 6, the desilting cabin 5 pours lake water into the adsorption cabin 6 through the siphon tube 7, at least three groups of adsorption cabins 6 are arranged, the installation mode of the siphon tubes 7 between the adsorption cabins 6 is the same as that between the desilting cabin 4 and the desilting cabin 5, and the desilting cabin, filtering the sand grains with heavier mass, carrying out a second filtering process on the mud settling cabin 5, carrying out physical precipitation on the bottom mud in the lake water, and carrying out a third filtering process on the adsorption cabin 6, thereby carrying out adsorption precipitation on the blue algae seed source in the lake water.

The light rail 8 is fixed on two sides of the carrier 1, the gearbox 24 is installed on the end face of the side of the pulley shell 10, one end of the gearbox 24 is connected with the shaft of the motor 23, the motor 23 obtains the required output rotating speed through the gearbox 24, the motor 23 provides the power for the support frame 11 to longitudinally move, the other end of the gearbox 24 is connected with the first steel shaft, the pulley 9 is fixed below the pulley shell 10 through the steel shaft 1, one end of the first steel shaft extends out of the pulley shell 10, the motor 23 realizes the sliding of the pulley shell 10 on the light rail 8 through the pulley 9, the support frame 11 is fixed on the pulley shell 10, a longitudinally moving foundation is obtained through the pulley shell 10, the fixing frame 12 is fixed on the tops of the support frames 11 of two adjacent groups, the two groups of support frames 11 are.

One end of an inclined strut 13 is fixed on the lower end face of a fixed frame 12, the other end of the inclined strut 13 is fixed with a support frame 11 through screws, the inclined strut 13 is fixed with the fixed frame 12 and the support frame 11, the three are connected to form a triangular structure, the connection between the fixed frame 12 and the support frame 11 is reinforced through the inclined strut 13, one end of the fixed frame 12 is fixed with a traction speed reducer 26 through screws, one end of the traction speed reducer 26 is connected with a traction motor 25 and is fixed through screws, one end, far away from the traction motor 25, of the traction speed reducer 26 is fixed with a second steel shaft through screws, the traction motor 25 is connected with the traction speed reducer 26, the output rotating speed required by traction is obtained through the traction speed reducer 26, one end, far away from the traction speed reducer 26, of the second steel shaft is fixed with a first chain wheel, a traction chain 27 is fixed on the first chain wheel, an, one end of the traction chain 27 is fixed with the monorail trolley 15 through screws, the traction motor 25 provides power for the monorail trolley 15 to move transversely on the I-shaped track 14, the chain wheel 19 winds the traction chain 27, the traction chain 27 transmits force to enable the monorail trolley 15 to move transversely, and the traction motor 25 achieves sliding of the monorail trolley 15 on the I-shaped track 14 through the traction chain 25.

A speed reducer 16 is fixed below the monorail trolley 15 through screws, the speed reducer 16 is connected with a motor 17 shaft, a third steel shaft is fixed on one side, far away from the motor 17, of the speed reducer 16, the third steel shaft completely penetrates through the speed reducer 16, chain wheels 19 are fixed at two ends of the third steel shaft, an opening chain 20 and a closing chain 21 are respectively fixed on the chain wheels 19 through screws, one end of the opening chain 20 is fixed at two ends of a mud grab bucket 22 through screws, one end of the closing chain 21 is fixed at the middle position of the mud grab bucket 22 through screws, the motor 17 obtains required output rotating speed through the speed reducer 16, the chain wheels 19 roll the opening chain 20 when the motor 17 rotates forwards, two ends of the opening chain 20 are fixed at two sides of the mud grab bucket 22, when the middle part of the opening chain 20 is lifted, upward acting force F can be generated at the position where two ends of the opening chain 20 are connected with the mud grab bucket 22 under the traction of the middle part, and downward acting force is generated at the position where the opening chain 20 The mud grab 22 is slowly opened along with the rising of the opening chain 20 under the influence of the acting force F and the acting force G, the chain wheel 19 winds the closing chain 21 when the motor 17 rotates reversely, two ends of the closing chain 21 are fixed at the middle position of the mud grab 22, when the closing chain 21 is lifted from the middle position, the middle position of the mud grab 22 is pulled by the closing chain 21 to rise along with the closing chain 21, and two ends of the mud grab 22 are closed towards the middle under the action of gravity.

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

1. A equipment that is used for lake bottom blue alga physical precipitation separation and mechanical dehydration, its characterized in that: the physical precipitation separation and mechanical dehydration device comprises a carrier (1), a three-dimensional travelling crane and a centrifuge (3), wherein the three-dimensional travelling crane is arranged on the carrier (1), and the centrifuge (3) is arranged on the carrier (1);

the carrier (1) comprises a mud settling cabin (5), the mud settling cabin (5) is arranged on the carrier (1), and a sand settling cabin (4) and an adsorption cabin (6) are respectively arranged on the left side and the right side of the mud settling cabin (5);

at least three groups of adsorption cabins (6);

the three-dimensional travelling crane grabs and removes heavier substances deposited at the bottom of the cabin and returns the substances to the lake bottom, and the lighter substances are separated from overwintering blue algae seed sources, centrifugally separated and concentrated by the centrifuge (3) and transported outside;

the left side and the right side of the sludge settling chamber (5) are welded with siphons (7), each side is welded with two siphons (7), one end of the siphon (7) is long, the other end is short, the short end of the siphon (7) between the desilting cabin (4) and the mud settling cabin (5) is placed in the desilting cabin (4), the long end is placed in the mud settling cabin (5), the desilting cabin (4) pours lake water into the desilting cabin (5) through a siphon (7), one end of the short siphon (7) between the sludge settling cabin (5) and the adsorption cabin (6) is placed in the sludge settling cabin (5), the long end is placed in an adsorption cabin (6), the sludge settling cabin (5) pours lake water into the adsorption cabin (6) through a siphon (7), the installation mode of a siphon (7) between the adsorption cabins (6) is the same as that between the desilting cabin (4) and the sludge settling cabin (5);

the sediment tank (4) is used for carrying out a first filtering process on lake water sucked from the bottom of the lake, filtering sand grains with relatively heavy mass, the sediment tank (5) is used for carrying out a second filtering process and carrying out physical precipitation on bottom sediment in the lake water, and the adsorption tank (6) is used for carrying out a third filtering process and carrying out adsorption precipitation on blue algae sources in the lake water.

2. The apparatus for physical precipitation separation and mechanical dehydration of blue algae at the bottom of lakes according to claim 1, characterized in that: the three-dimensional traveling crane comprises at least two groups of light rails (8), pulleys (9) and pulley shells (10), wherein the light rails (8) are arranged on a carrier (1), the pulleys (9) are arranged below the pulley shells (10), and the pulley shells (10) slide on the light rails (8) through the pulleys (9).

3. The apparatus for physical precipitation separation and mechanical dehydration of blue algae at the bottom of lakes according to claim 2, characterized in that: the three-dimensional driving further comprises at least two groups of supporting frames (11), a fixing frame (12), three groups of steel shafts (18), a motor (23) and a gearbox (24), wherein the three groups of steel shafts (18) comprise a first steel shaft, a second steel shaft and a third steel shaft, the gearbox (24) is arranged on the pulley shell (10), one end of the gearbox (24) is connected with the motor (23) through a shaft, the other end of the gearbox (24) is connected with the first steel shaft, the first steel shaft is fixed below the pulley shell (10), the pulley (9) is arranged on the first steel shaft, the motor (23) realizes the pulley shell (10) to slide on the light rail (8) through the pulley (9), the supporting frame (11) is arranged on the upper end face of the pulley shell (10), and the fixing frame (12) is fixed at the top ends of the two adjacent groups of supporting frames (11).

4. The apparatus for physical precipitation separation and mechanical dehydration of blue algae at the bottom of lakes according to claim 3, characterized in that: an inclined strut (13) is fixed on the lower end surface of the fixing frame (12), the other end of the inclined strut (13) is fixed with the supporting frame (11), a traction speed reducer (26) is arranged at one end of the fixing frame (12), one end of the traction speed reducer (26) is connected with a traction motor (25) shaft, a second steel shaft is fixed at one end of the traction speed reducer (26) far away from the traction motor (25), a first chain wheel is fixed at one end of the second steel shaft, which is far away from the traction speed reducer (26), a traction chain (27) is arranged on the first chain wheel, an I-shaped track (14) is fixed below the fixing frame (12), a single-track trolley (15) is arranged on the I-shaped track (14), one end of the traction chain (27) is fixed with the monorail trolley (15), and the traction motor (25) realizes that the monorail trolley (15) slides on the I-shaped track (14) through the traction chain (27).

5. The apparatus for physical precipitation separation and mechanical dehydration of blue algae at the bottom of lakes according to claim 4, characterized in that: a speed reducer (16) is arranged below the monorail trolley (15), a motor (17) is fixed on the speed reducer (16), a third steel shaft is arranged on one side, away from the motor (17), of the speed reducer (16), chain wheels (19) are fixed at two ends of the third steel shaft, and an opening chain (20) and a folding chain (21) are respectively arranged on the chain wheels (19).

6. The apparatus for physical precipitation separation and mechanical dehydration of blue algae at the bottom of lakes according to claim 5, characterized in that: one end of the opening chain (20) is arranged at two ends of the mud grab bucket (22), and one end of the closing chain (21) is arranged in the middle of the mud grab bucket (22).