CN111395435A - Arm-spread type river channel excavation and dredging combined ship - Google Patents
Arm-spread type river channel excavation and dredging combined ship Download PDFInfo
- Publication number
- CN111395435A CN111395435A CN202010365341.4A CN202010365341A CN111395435A CN 111395435 A CN111395435 A CN 111395435A CN 202010365341 A CN202010365341 A CN 202010365341A CN 111395435 A CN111395435 A CN 111395435A
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- sewage
- ship body
- water
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- suction
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- 238000009412 basement excavation Methods 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 53
- 239000007788 liquid Substances 0.000 claims abstract description 31
- 239000002689 soil Substances 0.000 claims abstract description 8
- 239000010865 sewage Substances 0.000 claims description 56
- 238000011010 flushing procedure Methods 0.000 claims description 22
- 239000010802 sludge Substances 0.000 claims description 12
- 238000005507 spraying Methods 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 8
- 238000011084 recovery Methods 0.000 claims description 2
- 238000010521 absorption reaction Methods 0.000 abstract description 3
- 238000005406 washing Methods 0.000 abstract description 3
- 239000007921 spray Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 239000003621 irrigation water Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/28—Dredgers or soil-shifting machines for special purposes for cleaning watercourses or other ways
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
- B63B1/02—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement
- B63B1/10—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/8833—Floating installations
- E02F3/885—Floating installations self propelled, e.g. ship
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Cleaning Or Clearing Of The Surface Of Open Water (AREA)
Abstract
The invention discloses an arm-spread type river channel excavation and dredging combined ship, which adopts a structure that an auxiliary ship is hinged on a main ship body, a driving device is arranged between the main ship body and the auxiliary ship body to realize the folding and stretching of the auxiliary ship on the main ship body, and three parts are folded into a 'III' structure when walking on water and passing a bridge, so that the auxiliary ship can conveniently pass through a bridge opening and a gate; during dredging operation, the left and right auxiliary ships are unfolded to form a shape like a Chinese character 'mi' or a 'T', and the unfolding width is close to the width of a river channel, so that the adjustment of a working surface can be realized; but its work platform that is provided with vertical lift on the auxiliary ship is provided with towards dirty terminal combination and the terminal combination of soil absorption on work platform, carries out the washing away of silt or soil through high-pressure liquid, adopts the terminal combination of soil absorption to wash away the back with mud and absorb to the blowdown port then arrange to the main hull left and right sides, can realize the river course desilting and newly open the river course operation.
Description
Technical Field
The invention belongs to the technical field of dredging equipment, and particularly relates to an arm-spread type river channel excavation and dredging combined ship.
Background
The method is difficult to desilt, large in energy consumption, high in cost and long in construction period, and the desilting needs to be operated in a dry period, so that domestic water, agricultural irrigation and industrial water taking at the downstream and nearby are affected during construction.
There are also dredging methods with water operation, or the soil dug out by installing an excavator on a floatable platform is put into a cabin and transported away, or the high-pressure water gun is used for scouring, a sludge pump and a floatable pipeline are used for pumping slurry for dredging, and the dredging efficiency and the effect are not satisfactory.
Aiming at the defects in the prior art, as a technical research and development worker in the industry, how to improve the technology is to design an arm-spread type river channel excavation dredger which can realize large operation section, thorough dredging, high efficiency and convenience, and solve the technical problems of dredging and river channel excavation.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention discloses an arm-spread type river channel excavation and dredging combined ship, which adopts an arm-spread type design, wherein auxiliary ships are arranged on the left side and the right side of a main ship body to form a middle part, a left part and a right part, and the three parts are gathered into a 'Chuan' structure when walking on water and passing a bridge, so that the ship can conveniently pass through a bridge opening and a gate; during dredging operation, the left main hull and the right main hull are unfolded through the action of the spreading arm to form a shape like a Chinese character 'mi' or a 'T', the unfolding width is close to the width of a river channel, and the main hull finishes the washing of the sludge or the river channel and pumps and conveys slurry to the shore in the walking process through arranging a high-pressure washing and dirt absorbing device and erecting a sludge conveying pipeline on the auxiliary ship, so that the operation of dredging the river channel with water and excavating a new river is realized.
An arm-spread type river channel excavation and dredging combined ship comprises a main ship body and auxiliary ships hinged to the left side and the right side of the main ship body, wherein a driving device is arranged between each auxiliary ship and the main ship body to realize the folding and the extending of each auxiliary ship on the main ship body;
a guide device is arranged on the auxiliary ship, a working platform capable of moving up and down is arranged in the guide device, and a sewage flushing tail end combination and a sewage sucking tail end combination are arranged on the working platform; the sewage flushing tail end is combined with a plurality of water spraying devices for flushing sludge or soil; the sewage suction tail end is combined with a plurality of sewage suction devices for sucking the mud-water mixture;
the sewage flushing tail end combination is connected with a sewage flushing pump set to realize water supply; the sewage suction tail end combination is connected with the sewage suction pump set to realize sludge recovery, and the sewage suction pump set is provided with a sewage discharge port through which the sludge-water mixture is flushed to the outside.
The main ship body is provided with a driving device and a driving control device.
The top of the auxiliary ship is provided with a vertical guide rail and a vertical driving device, a guide wheel and the vertical guide rail are arranged on the working platform in a matching mode, and the vertical driving device supports the working platform to move up and down.
The sewage flushing tail end combination comprises a liquid supply pipe arranged on the working platform, and a plurality of water spraying guns are vertically arranged on the liquid supply pipe downwards; the sewage suction terminal assembly comprises a liquid suction pipe arranged on the working platform, a plurality of water suction guns are vertically arranged on the liquid suction pipe, and water suction filter covers are arranged at the end parts of the water suction guns.
The sewage flushing pump set is arranged on the main ship body and is connected with a liquid suction port at the bottom end of the side part of the main ship body through a pipeline to realize liquid supply to the interior of the liquid supply pipe.
The sewage suction pump set is arranged on the main ship body, one end of the sewage suction pump set is connected with the liquid suction pipe through a pipeline, the other end of the sewage suction pump set is connected with the sewage discharge port, and the sewage and water mixture is conveyed to the left side and the right side of the main ship body through the sewage discharge port.
Work platform on be provided with a swing drive module, swing drive module includes that a swing drive rotates from the driving wheel, is provided with the eccentric rod from the driving wheel, the eccentric rod drive the swinging arms horizontal hunting, be connected with the horizontal drive pole on the swinging arms, the horizontal drive pole on be provided with toggle device, realize the drive to water jet equipment through toggle device, water jet equipment's lower part fix on work platform through the pivot combination, realize the horizontal hunting under toggle device's the left and right sides drive.
The invention has the beneficial effects that: according to the design, the structure that the auxiliary ship is hinged on the main ship body is adopted, and the driving device is arranged between the main ship body and the auxiliary ship body, so that the auxiliary ship can be folded and extended on the main ship body; during dredging operation, the left and right auxiliary ships are unfolded through the action of the unfolding arms to form a shape like a Chinese character 'mi' or a 'T', and the unfolding width is close to the width of a river channel, so that the adjustment of a working surface can be realized; moreover, the working platforms capable of vertically lifting are arranged on the auxiliary ships, the working platforms are provided with a sewage flushing terminal combination and a sewage sucking terminal combination, the high-pressure liquid is used for flushing sludge or soil, the sewage sucking terminal combination is adopted for flushing the sludge, absorbing the sludge to a sewage discharge port and discharging the sludge to the left side and the right side of the main ship body, through the arrangement, river channel dredging and new river channel operation can be realized, and the arm-spread type river channel excavation dredging combined ship further expands a swing driving device on the basis to realize swing control over a water spraying device, so that the dredging effect can be further improved. To sum up, this scheme structural design is novel, can effectually realize river course desilting and river course excavation operation, is the arm exhibition formula river course excavation dredging combination ship of an ideal.
Drawings
FIG. 1 is a schematic view of a front side three-dimensional structure after being folded;
FIG. 2 is a schematic view of the closed rear side three-dimensional structure of the present invention;
FIG. 3 is a schematic view of the extended front side three-dimensional structure of the present invention;
FIG. 4 is a schematic view of the rear side of the stretched solid body of the present invention;
FIG. 5 is a schematic perspective view of the main hull of the present invention;
FIG. 6 is a schematic perspective view of the secondary vessel of the present invention;
FIG. 7 is an enlarged view of area A of FIG. 6;
FIG. 8 is a schematic view of a side perspective structure of a dirt suction device on a work platform according to the present invention;
FIG. 9 is a schematic view of a side three-dimensional structure of a water spraying device on a work platform according to the present invention;
FIG. 10 is an enlarged view of the area B in FIG. 9;
in the attached drawings, 1, a main hull, 11, a propeller, 12, a hinge shaft, 13, a sewage suction pump set, 131, a double-end sewage discharge port, 132, a pipeline, 14, a sewage flushing pump set, 15, a liquid suction port, 16, a folding driving cylinder, 2, an auxiliary ship, 20, a vertical guide rail, 3, a working platform, 30, a working frame, 31, a liquid supply pipe, 32, a connecting hose, 33, a water spray gun, 34, a high-pressure spray head, 35, a liquid suction pipe, 36, a water suction gun fixing seat, 37, a water suction gun, 38, a water suction filter cover, 39, a folding driving cylinder fixing end, 4, a folding driving cylinder avoiding groove, 40, a hoisting driving point, 41, a working platform guide wheel, 5, a driving control room, 6, a swinging driving module, 60, a motor, 61, a speed reducer, 62, a driving gear, 63, a driven gear, 64, an eccentric rod, 65, a fixing base, 66, a swinging rod, a horizontal driving rod, 67, a shifting plate, 69. the device comprises a swing shaft 7, a vertical driving cylinder 70, a spray gun chuck 71 and a rotating shaft.
Detailed Description
The following embodiments will explain the arm-spread type river channel excavation and dredging combined vessel disclosed in the present invention in detail.
Example I: the utility model provides an arm-spread formula river course excavation dredging combination ship, its includes main hull 1, and the front side of main hull 1 is provided with articulated shaft 12, is provided with through the articulated shaft and controls two pair ships 2, through connecting between vice ship 2 and the main hull and close up actuating cylinder 16, the one end of closing up actuating cylinder 16 connect on main hull 1, on the driving cylinder stiff end 39 that closes up on vice ship 2 is connected to its other end, can realize that vice ship 2 closes up and extends on main hull 1 through controlling closing up actuating cylinder 16 to the river course desilting work of adaptation different width.
The main hull 1 is provided with the cab 5 and the tail propeller 11, and the whole main hull 1 can be driven by the tail propeller 11 through the above structure.
A vertical guide rail 20 is vertically arranged on the top surface of the auxiliary ship 2, a working platform 3 capable of moving up and down is arranged in the vertical guide rail 20, working platform guide wheels 41 are arranged at four corners of the working platform 3, a hoisting driving point 40 is arranged at the top of the working platform 3, and a sewage flushing tail end combination and a sewage sucking tail end combination are also arranged on the working platform 3; the sewage flushing tail end combination comprises a liquid supply pipe 31 arranged on the working platform 3, a plurality of water spray guns 33 are vertically arranged on the liquid supply pipe 31 downwards, high-pressure spray heads 34 are arranged at the bottoms of the water spray guns 33, the liquid supply pipe 31 is connected with a sewage flushing pump set 14 arranged in the main ship body 1 to supply water, liquid suction ports 15 arranged at the bottom ends of the left side part and the right side part of the main ship body are connected with the sewage flushing pump set 14 to supply liquid to the interior of the liquid supply pipe, and through the arrangement, high-pressure liquid can be supplied to the interior of a river channel and sprayed through the water spray guns 33 when the river channel is dredged;
the sewage suction terminal combination including setting up the pipette 35 on work platform 3, pipette 35 on vertically be provided with a plurality of rifle that absorbs water, the rifle 35 that absorbs water fix on the working frame 30 through the rifle fixing base 36 that absorbs water, the tip of the rifle 35 that absorbs water is provided with absorbs water filter mantle 28, through the muddy water mixture after the rifle 35 that absorbs water washes 33 collect in leading-in to sewage suction pump package 13 through pipette 35, sewage suction pump package 13 set up on main hull 1, its one end is connected through pipeline 132 and pipette 35, the other end is connected with blowdown port 131, it carries muddy water mixture to the main hull left and right sides through blowdown port 131. By such operation, after the sludge is sprayed to the left and right sides of the main hull through the sewage discharge port 131, the liquid flows in the direction of the main hull and is collected and recycled by the liquid suction port 15.
This device further extends on the basis of above setting, and the top of vice ship is provided with vertical guide rail 20 and vertical actuating cylinder 7, is provided with work platform guide pulley 41 and vertical guide rail 20 matching setting in work platform four corners department, supports and realizes reciprocating of work platform 3 through chain tractive hoist and mount driving point 40 through vertical drive arrangement 7. Therefore, the vertical adjustment of the whole working platform can be realized, and the adjustment of the operation height can be realized.
Still further, as shown in fig. 6 and 7, a motor 60 is arranged on the working platform 3, a speed reducer 61 is arranged below the motor 60, a driving gear 62 is arranged on the speed reducer 61, a driven gear 63 is driven by the driving gear 62, a swing rod 66 is fixed on the working platform 3, the bottom of the swing rod 66 is fixed on the working platform 3 through a fixed base 65, the driven gear 63 is also fixed on the working platform 3, the swing rod 66 drives a horizontal driving rod 67 to horizontally drive under the driving of the driving gear 62, a shifting plate 68 is arranged on the horizontal driving rod 67, a swing shaft 69 is arranged on the water spray gun 33, and the shifting plate 68 and the swing shaft 69 are matched to realize the left-right swing of the water spray gun 33, so as to increase the operation driving surface and ensure the uniform dredging of the river bottom.
Example II:
on the basis of the structural arrangement, when the river course newly-opening operation is carried out, after the closing driving cylinder 16 extends out of the closing driving cylinder avoiding groove 4 from a place with a water source, the auxiliary ship 2 rotates by 90 degrees (or less than 90 degrees according to the width of the newly-opened river course) around the hinge shaft 12 to form a shape like a Chinese character 'zi' or a 'T', then the vertical driving cylinder 7 drives the whole working platform 3 to move up and down so as to adjust the operation height, the water is sprayed by the water spraying gun 33, the water absorption gun 35 absorbs liquid back to realize circulating water spraying operation so as to clear earth surface soil, in the working process, the swing driving module 6 always drives the water spraying gun 33 to swing left and right, the engineering of the newly-opened river course can be finished by slowly advancing the main ship body 1, the principle of collecting and collecting of the main ship body after the river course excavation is finished is the same, and the unfolding width of the auxiliary ships on the left side and the right side can be controlled according to the extending length of the auxiliary ship, therefore, newly opened river channel excavation work with different widths is carried out.
Claims (7)
1. The utility model provides an arm exhibition formula river course excavation dredging combination ship which characterized in that: the ship comprises a main ship body and auxiliary ships hinged on the left side and the right side of the main ship body, wherein a driving device is arranged between the auxiliary ships and the main ship body to realize the closing and the extension of the auxiliary ships on the main ship body;
a guide device is arranged on the auxiliary ship, a working platform capable of moving up and down is arranged in the guide device, and a sewage flushing tail end combination and a sewage sucking tail end combination are arranged on the working platform; the sewage flushing tail end is combined with a plurality of water spraying devices for flushing sludge or soil; the sewage suction tail end is combined with a plurality of sewage suction devices for sucking the mud-water mixture;
the sewage flushing tail end combination is connected with a sewage flushing pump set to realize water supply; the sewage suction tail end combination is connected with the sewage suction pump set to realize sludge recovery, and the sewage suction pump set is provided with a sewage discharge port through which the sludge-water mixture is flushed to the outside.
2. The arm-spread-type river channel excavation dredging combination vessel of claim 1, wherein: the main ship body is provided with a driving device and a driving control device.
3. The arm-spread-type river channel excavation dredging combination vessel of claim 1, wherein: the top of the auxiliary ship is provided with a vertical guide rail and a vertical driving device, a guide wheel and the vertical guide rail are arranged on the working platform in a matching mode, and the vertical driving device supports the working platform to move up and down.
4. The arm-spread-type river channel excavation dredging combination vessel of claim 1, wherein: the sewage flushing tail end combination comprises a liquid supply pipe arranged on the working platform, and a plurality of water spraying guns are vertically arranged on the liquid supply pipe downwards; the sewage suction terminal assembly comprises a liquid suction pipe arranged on the working platform, a plurality of water suction guns are vertically arranged on the liquid suction pipe, and water suction filter covers are arranged at the end parts of the water suction guns.
5. The boom-spread type river channel excavation dredging combination vessel of claim 4, wherein: the sewage flushing pump set is arranged on the main ship body and is connected with a liquid suction port at the bottom end of the side part of the main ship body through a pipeline to realize liquid supply to the interior of the liquid supply pipe.
6. The boom-spread type river channel excavation dredging combination vessel of claim 4, wherein: the sewage suction pump set is arranged on the main ship body, one end of the sewage suction pump set is connected with the liquid suction pipe through a pipeline, the other end of the sewage suction pump set is connected with the sewage discharge port, and the sewage and water mixture is conveyed to the left side and the right side of the main ship body through the sewage discharge port.
7. The arm-spread-type river channel excavation dredging combination vessel of claim 1, wherein: work platform on be provided with a swing drive module, swing drive module includes that a swing drive rotates from the driving wheel, is provided with the eccentric rod from the driving wheel, the eccentric rod drive the swinging arms horizontal hunting, be connected with the horizontal drive pole on the swinging arms, the horizontal drive pole on be provided with toggle device, realize the drive to water jet equipment through toggle device, water jet equipment's lower part fix on work platform through the pivot combination, realize the horizontal hunting under toggle device's the left and right sides drive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010365341.4A CN111395435A (en) | 2020-04-30 | 2020-04-30 | Arm-spread type river channel excavation and dredging combined ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010365341.4A CN111395435A (en) | 2020-04-30 | 2020-04-30 | Arm-spread type river channel excavation and dredging combined ship |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111395435A true CN111395435A (en) | 2020-07-10 |
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ID=71429877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010365341.4A Pending CN111395435A (en) | 2020-04-30 | 2020-04-30 | Arm-spread type river channel excavation and dredging combined ship |
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| Country | Link |
|---|---|
| CN (1) | CN111395435A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024124801A1 (en) * | 2022-12-16 | 2024-06-20 | 清华大学 | Suspended river regulation device and sediment agitating dredger for suspended river regulation |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2934367Y (en) * | 2006-08-11 | 2007-08-15 | 单克胜 | Silt-cleaning vessel for river way |
| CN103205991A (en) * | 2013-04-02 | 2013-07-17 | 王国根 | Channel cleanout device and method thereof |
| CN108060716A (en) * | 2017-12-22 | 2018-05-22 | 玉林市玉州区万通华信科技服务部 | A kind of small-sized rain sewage conduct environment-protective desilting all-in-one machine |
| CN212612727U (en) * | 2020-04-30 | 2021-02-26 | 山东驰象机械科技有限公司 | Arm-spread type river channel excavation and dredging combined ship |
-
2020
- 2020-04-30 CN CN202010365341.4A patent/CN111395435A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2934367Y (en) * | 2006-08-11 | 2007-08-15 | 单克胜 | Silt-cleaning vessel for river way |
| CN103205991A (en) * | 2013-04-02 | 2013-07-17 | 王国根 | Channel cleanout device and method thereof |
| CN108060716A (en) * | 2017-12-22 | 2018-05-22 | 玉林市玉州区万通华信科技服务部 | A kind of small-sized rain sewage conduct environment-protective desilting all-in-one machine |
| CN212612727U (en) * | 2020-04-30 | 2021-02-26 | 山东驰象机械科技有限公司 | Arm-spread type river channel excavation and dredging combined ship |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024124801A1 (en) * | 2022-12-16 | 2024-06-20 | 清华大学 | Suspended river regulation device and sediment agitating dredger for suspended river regulation |
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