CN113431116B - Sediment removal device for hydraulic engineering - Google Patents

Sediment removal device for hydraulic engineering Download PDF

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Publication number
CN113431116B
CN113431116B CN202110740151.0A CN202110740151A CN113431116B CN 113431116 B CN113431116 B CN 113431116B CN 202110740151 A CN202110740151 A CN 202110740151A CN 113431116 B CN113431116 B CN 113431116B
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China
Prior art keywords
suction
water
hydraulic engineering
suction head
channel
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Active
Application number
CN202110740151.0A
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Chinese (zh)
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CN113431116A (en
Inventor
李玉东
陈彬
韩娜
李西刚
岳贤正
杜娟
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Yellow River Shandong River Bureau Water Supply Bureau
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Yellow River Shandong River Bureau Water Supply Bureau
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Priority to CN202110740151.0A priority Critical patent/CN113431116B/en
Publication of CN113431116A publication Critical patent/CN113431116A/en
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    • 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
    • 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
    • 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
    • E02F3/92—Digging elements, e.g. suction heads
    • 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
    • E02F3/92—Digging elements, e.g. suction heads
    • E02F3/9256—Active suction heads; Suction heads with cutting elements, i.e. the cutting elements are mounted within the housing of the suction head
    • 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
    • E02F3/92—Digging elements, e.g. suction heads
    • E02F3/9256—Active suction heads; Suction heads with cutting elements, i.e. the cutting elements are mounted within the housing of the suction head
    • E02F3/9268—Active suction heads; Suction heads with cutting elements, i.e. the cutting elements are mounted within the housing of the suction head with rotating cutting elements
    • 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
    • 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
    • E02F5/282—Dredgers or soil-shifting machines for special purposes for cleaning watercourses or other ways with rotating cutting or digging tools

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Treatment Of Sludge (AREA)

Abstract

The invention relates to a dredging device for hydraulic engineering, which comprises: the suction cylinder comprises a suction inner cylinder and a suction outer cylinder which are coaxially arranged, and the suction inner cylinder can rotate relative to the suction outer cylinder; the suction head is connected with the bottom of the suction inner barrel and is of a pincer-shaped structure, a plurality of suction openings are formed in the inner wall of the suction head, and a plurality of stirring teeth are arranged on the inner wall of the suction head. The suction range is narrowed, and the suction effect is improved. Reduce the influence on aquatic weeds and fishes. The water suction amount is reduced, and the cleaning effect is good. The energy consumption is reduced, the high-pressure blowing and stirring process is avoided, and the energy consumption in the cleaning process is reduced.

Description

Dredging device for hydraulic engineering
Technical Field
The invention belongs to the technical field of hydraulic engineering, and particularly relates to a dredging device for hydraulic engineering.
Background
The information in this background section is only for enhancement of understanding of the general background of the invention and is not necessarily to be construed as an admission or any form of suggestion that this information forms the prior art that is already known to a person of ordinary skill in the art.
The method has the advantages that the sludge is required to be cleaned frequently in the hydraulic engineering, the accumulation of the sludge is reduced, the clarity of the water body is kept, the water quality is improved, the living environment of aquatic organisms is improved, the blocking of a river channel is avoided, and the water body flows more smoothly.
The flow of water brings favorable living environment for fish in some river courses, but because organic waste is constantly accumulated at the bottom of the water, so the silt of bottom can constantly increase, and there are a lot of pasture and water at the bottom of the water, and silt is attached to the pasture and water, can cover the pasture and water gradually, and some branch etc. that get into in the river course can enter into silt, makes the velocity of water slow down, influences the existence of aquatic plant, influences pleasing to the eye and the clarity of water.
According to the existing dredging method, a stirring structure is used for blowing and stirring at the bottom of water, so that sludge is in a turbid water shape and then flows away along with a river, or a suction device is used for sucking a turbid water body to a flat land on the bank side by using a suction pump, the whole suction amount is larger due to the mode, and the turbid water body is larger after blowing and stirring. And generally, a lot of fishes and aquatic weeds are contained in river water, and the fishes and the aquatic weeds are damaged in the process. The purpose of treating the sludge in the water in the hydraulic engineering is to construct a water ecosystem with a good circulation function, and the sludge is removed by using a large-area blowing and stirring mode, so that not only is the energy consumption large, but also the ecological environment in the water is greatly influenced.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a dredging device for hydraulic engineering.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a dredging device for hydraulic engineering comprises:
the suction cylinder comprises a suction inner cylinder and a suction outer cylinder which are coaxially arranged, and the suction inner cylinder can rotate relative to the suction outer cylinder;
the suction head is connected with the bottom of the suction inner barrel and is of a pincer-shaped structure, a plurality of suction openings are formed in the inner wall of the suction head, and a plurality of stirring teeth are arranged on the inner wall of the suction head.
The suction head forms a suction semi-closed space, is beneficial to sucking muddy liquid in a certain space, and avoids enlarging and influencing the water environment. The double-layer structure of the suction cylinder is arranged, so that the suction head can be driven to rotate and stir, and silt attached to aquatic plants and at the bottom of the aquatic plants is fully stirred.
Compare in current on a large scale blow and stir the device, reduced the scope of suction, can carry out better clearance to the silt of a small circle, reduce the influence to pasture and water, fish. The water suction amount is reduced, and the cleaning effect is good. The energy consumption is reduced, the high-pressure blowing and stirring process is avoided, and the energy consumption in the cleaning process is reduced.
One or more technical schemes of the invention have the following beneficial effects:
the dredging device for the hydraulic engineering can be used for pumping in the shipborne dredging process, can be continuously performed by utilizing the pumping in the shipborne advancing process, and can be used for dredging along the walking position of a ship, so that the influence of the dredging process on the surrounding water quality is small, the fluctuation is small, larger waves cannot be caused, and the influence on the flow speed of water flow is small;
in the dredging process, the influence on underwater aquatic plants and small fishes is small, the damage to the plants is avoided, and the processes of blowing and stirring at high pressure and stirring by using a high-power stirring device are avoided;
in the process of dredging, the water absorption capacity is small, the energy consumption is low, the flowing river channel or the urban landscape river channel and the like can be frequently dredged, and the use is convenient.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the invention and not to limit the invention.
Fig. 1 is an external view of a dredging apparatus for hydraulic engineering;
fig. 2 is a cross-sectional view of the dredging apparatus for hydraulic engineering;
FIG. 3 is a top view of the suction inner and outer cylinders;
the device comprises a suction outer cylinder 1, a suction inner cylinder 2, a suction head 3, a suction head 4, a stirring tooth 5, a first channel 6, a vertical channel 7, a horizontal channel 8, a lower through groove opening 9 and a fixing frame.
Detailed Description
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
A dredging device for hydraulic engineering comprises:
the suction barrel comprises a suction inner barrel and a suction outer barrel which are coaxially arranged, and the suction inner barrel can rotate relative to the suction outer barrel;
the suction head is connected with the bottom of the suction inner barrel and is of a pincer-shaped structure, a plurality of suction openings are formed in the inner wall of the suction head, and a plurality of stirring teeth are arranged on the inner wall of the suction head.
The suction head forms a suction semi-closed space, is beneficial to sucking muddy liquid in a certain space, and avoids enlarging and influencing the water environment. The double-layer structure of the suction cylinder is arranged, so that the suction head can be driven to rotate and stir, and silt attached to aquatic plants and at the bottom of the aquatic plants is fully stirred.
Compare in current on a large scale blow and stir the device, reduced the scope of suction, can carry out better clearance to the silt of a small circle, reduce the influence to pasture and water, fish. The water suction amount is reduced, and the cleaning effect is good. The energy consumption is reduced, the high-pressure blowing and stirring process is avoided, and the energy consumption in the cleaning process is reduced.
In some embodiments of the invention, the suction head is formed by two suction plates, the suction plates are arc-shaped or semicircular, the interior of the suction head is a cavity structure, the two arc-shaped suction plates are oppositely arranged, and a space is arranged between the outer edges of the two suction plates.
In some embodiments of the invention, the bottom edge of the suction head is provided with opposed rabble teeth.
Furthermore, the stirring teeth are made of hard plastics or stainless steel and the like. The diameter of the further stirring teeth is 0.5-1.5cm.
In some embodiments of the present invention, the agitating teeth located at the upper part of the suction head have a downward inclination angle, the agitating teeth located at the lower part of the suction head are arranged in parallel, and the length of the agitating teeth located at the lower part is greater than that of the agitating teeth located at the upper part.
In some embodiments of the invention, the outer suction cylinder is provided with a plurality of transverse first channels, the plurality of first channels are longitudinally arranged, and the first channels in the same horizontal direction are oppositely arranged.
In some embodiments of the invention, the suction inner cylinder is provided with a cavity, a second channel is arranged in the cavity, a water through opening is arranged at the bottom of the suction inner cylinder, the bottom of the second channel is communicated with the water through opening, and the second channel is matched and opposite to the first channel.
In some embodiments of the present invention, the second passage includes a vertical passage and a plurality of horizontal passages, the plurality of horizontal passages are respectively opposite to the plurality of first passages, the vertical passage communicates with each of the horizontal passages, and a bottom of the vertical passage communicates with the water passage port.
In some embodiments of the present invention, the bottom of the suction inner cylinder and the bottom of the suction outer cylinder are correspondingly provided with two lower through groove openings, and the two lower through groove openings are arranged to be vertically crossed. Further, the inside wall of the lower through groove opening is provided with a plurality of stirring teeth.
In some embodiments of the invention, the tops of the suction inner cylinder and the suction outer cylinder are connected through a fixing frame, and a sliding bearing is arranged at the connecting end of the fixing frame and the suction inner cylinder.
As described in the background art, the method is suitable for dredging in water environments such as river channels. Some aquatic weeds can grow at the bottom of the river channel, and the aquatic weeds provide living environment for the fishes. However, as time is accumulated, sludge is gradually accumulated at the bottom of the river channel, and the accumulated sludge can cover aquatic plants, so that the aquatic environment and the attractiveness are influenced after the time is longer.
The invention relates to a dredging device for hydraulic engineering, which is suitable for riverways with not very deep water depth, urban landscape riverways and riverways with water depth of about 3 m. During the use process, the suction cylinder is extended into the water body, the suction head is used for sucking, then the water is transmitted to the ground or the ship body through the suction cylinder, and the purified water is discharged to leave sludge after being filtered on the ship body.
The suction cylinder comprises a suction inner cylinder 2 and a suction outer cylinder 1 which are coaxially arranged, and the suction inner cylinder 2 can rotate relative to the suction outer cylinder 1; suction head 3 is connected with the bottom of suction inner tube 2, and suction head 3 is the pincerlike structure, and the inner wall of suction head 3 sets up a plurality of suction openings, and the inner wall of suction head sets up a plurality of stirring teeth 4.
The suction inner cylinder 2 can rotate relative to the suction outer cylinder 1, the suction head 3 is connected with the suction inner cylinder 2, so that the suction inner cylinder 2 can drive the suction head 3 to rotate, the inner side wall of the suction head 3 is provided with stirring teeth 4, and the stirring teeth have a stirring function. And because the suction head is the pincerlike structure, form an enclosure space, form the whirl in the space, the water of whirl meets the inside wall of suction head, then partial backward flow is rotatory, makes inside silt form the turbid body under the drive of water, then takes away through the suction opening.
Because the suction is carried out in a semi-closed space, the phenomenon that most of the suction water flows out and the stirred sludge is pumped away in time is avoided, and the dredging effect is improved. The water suction amount is reduced, and only local water amount needs to be sucked. And can reduce the influence to pasture and water and fish, the pasture and water can take place to float at the in-process of stirring, but the attached silt major part can be taken away on it through stirring, needn't strike it through great draft or large-scale stirring structure again, avoids the damage of pasture and water, and the open position of fish accessible suction head leaves, and the suction water yield is less simultaneously, and is less to the influence of living environment.
Further, the suction head is composed of two suction plates, the suction plates are arc-shaped or semicircular, the inner part of the suction head is of a cavity structure, the two arc-shaped suction plates are oppositely arranged, and a distance is arranged between the outer edges of the two suction plates. As shown in figure 2, the two arc-shaped plates are oppositely arranged to form a structure similar to a pliers and have an arc-shaped structure, so that a suction space is provided, the aquatic weeds are prevented from being damaged, and the rotational flow is favorably formed. The suction plates can also be semicircular, and the two suction plates form a circular three-dimensional structure, but the middle part of the circular three-dimensional structure is provided with a space, so that the movement process of the dredging device is facilitated, and the waterweeds slide out from the space.
Further, the bottom edge of the suction head is provided with opposed rabble teeth 4. The stirring teeth 4 at the bottom of the suction head play a role of scraping the sludge at the bottom of the water body, and the sludge enters the inner side of the suction head after being scraped. The suction head is at rotatory in-process, and the stirring tooth can contact silt repeatedly, improves the desilting effect.
Further, the agitating teeth 4 are made of hard plastic or stainless steel. The diameter of the further stirring teeth is 0.5-1.5cm. The stirring teeth have certain hardness and can play a role in scraping mud, and meanwhile, the stirring teeth are only arranged, so that the cutting of plants caused by the arrangement of a stirring knife and the like is avoided, and the blades or stems of the plants are pumped away along with water flow, so that the blockage is easily caused.
Furthermore, the stirring teeth 4 positioned at the upper part of the suction head have downward inclination angles, the stirring teeth positioned at the lower part of the suction head are arranged in parallel, and the length of the stirring teeth positioned at the lower part is greater than that of the stirring teeth positioned at the upper part. The lower stirring teeth are longer because the lower sludge is thicker and heavier. And the stirring teeth on the upper part are inclined downwards, so that downward rotational flow is formed, and the phenomenon that the rotational flow is too violent and flows out of the suction head is avoided.
Further, the outer suction cylinder 1 is provided with a plurality of transverse first channels 5, the plurality of first channels 5 are longitudinally arranged, and the first channels 5 located in the same horizontal direction are oppositely arranged. The first channel 5 is arranged, so that external water can conveniently enter the suction outer barrel, the self weight of the suction outer barrel is increased when the suction outer barrel is positioned underwater, and underwater stability is kept.
Furthermore, the suction inner barrel is provided with a cavity, a second channel is arranged in the cavity, a water through hole is formed in the bottom of the suction inner barrel, the bottom of the second channel is communicated with the water through hole, and the second channel is opposite to the first channel in a matched mode.
Further, the second passageway includes vertical passageway and a plurality of horizontal passageway, and a plurality of horizontal passageways are relative with a plurality of first passageways respectively, and vertical passageway intercommunication each horizontal passageway, the bottom of vertical passageway 6 communicates with each other with the limbers. The suction inner tube sets up and suction urceolus matched with second passageway, like this, when first passageway and horizontal passageway 7 are relative, the water enters into suction inner tube and suction urceolus, increase the dead weight, an in-process for the water is placed to the suction section of thick bamboo, after placing the water, rotatory suction inner tube, make the horizontal passageway 7 and the first passageway of suction inner tube stagger, form the pressure of water on the upper portion of suction head 3, reduce the inside whirl of suction head and enter into the top like this, be favorable to improving the desilting effect.
Further, the bottoms of the suction inner barrel 2 and the suction outer barrel 1 are correspondingly provided with two lower through groove openings 8, the two lower through groove openings 8 are arranged in a vertical crossed manner, and the top of each lower through groove opening 8 is a water through opening. Further, the inside wall of the lower through groove opening is provided with a plurality of stirring teeth. The lower through groove opening is convenient for holding great pasture and water etc. for the increase suction space, can make things convenient for the pasture and water to pass through a suction section of thick bamboo simultaneously, conveniently advances the process. The inside wall of the lower through groove opening is provided with a plurality of stirring teeth, and the stirring teeth of the lower through groove opening play roles of rotational flow pressing and stirring, so that sludge turbid bodies enter the suction head to be pumped away.
Further, the tops of the suction inner cylinder 2 and the suction outer cylinder 1 are connected through a fixing frame 9, and a sliding bearing is arranged at the connecting end of the fixing frame 9 and the suction inner cylinder. The suction inner cylinder and the suction outer cylinder are in an integral connection relationship, and the rotation of the suction inner cylinder does not influence the suction outer cylinder.
The top of the suction inner barrel 2 is provided with a water outlet which is connected with a water pumping hose, and the water pumping hose can meet certain rotary deformation. The water pumping hose is connected with the water pump to provide power.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. The utility model provides a sediment removal device for hydraulic engineering which characterized in that: the method comprises the following steps:
the suction barrel comprises a suction inner barrel and a suction outer barrel which are coaxially arranged, and the suction inner barrel can rotate relative to the suction outer barrel;
the suction head is connected with the bottom of the suction inner cylinder and is of a pincer-shaped structure, a plurality of suction openings are formed in the inner wall of the suction head, and a plurality of stirring teeth are formed in the inner wall of the suction head;
the suction outer cylinder is provided with a plurality of transverse first channels which are longitudinally arranged, and the first channels positioned in the same horizontal direction are oppositely arranged;
the suction inner cylinder is provided with a cavity, a second channel is arranged in the cavity, the bottom of the suction inner cylinder is provided with a water through hole, the bottom of the second channel is communicated with the water through hole, and the second channel is matched and opposite to the first channel;
the second channel comprises a vertical channel and a plurality of transverse channels, the transverse channels are respectively opposite to the first channels, the vertical channel is communicated with the transverse channels, and the bottom of the vertical channel is communicated with the water through port.
2. The dredging device for hydraulic engineering of claim 1, wherein: the suction head has two suction plates, and the suction plate is arc or semicircle type, and the inside of suction head is the cavity structure, and two arc suction plates set up relatively to set up the interval between the outward flange of two suction plates.
3. The dredging device for hydraulic engineering according to claim 1, wherein: the bottom edge of the suction head is provided with opposite rabble teeth.
4. The dredging device for hydraulic engineering according to claim 1, wherein: the stirring teeth positioned at the upper part of the suction head have downward inclination angles, the stirring teeth positioned at the lower part of the suction head are arranged in parallel, and the length of the stirring teeth positioned at the lower part is greater than that of the stirring teeth positioned at the upper part.
5. The dredging device for hydraulic engineering according to claim 1, wherein: the bottom of the suction inner cylinder and the bottom of the suction outer cylinder are correspondingly provided with two lower through groove openings which are arranged in a vertical cross way.
6. The dredging device for hydraulic engineering according to claim 5, wherein: the inside wall of the lower through groove opening is provided with a plurality of stirring teeth.
7. The dredging device for hydraulic engineering according to claim 1, wherein: the tops of the suction inner cylinder and the suction outer cylinder are connected through a fixing frame, and a sliding bearing is arranged at the connecting end of the fixing frame and the suction inner cylinder.
CN202110740151.0A 2021-06-30 2021-06-30 Sediment removal device for hydraulic engineering Active CN113431116B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110740151.0A CN113431116B (en) 2021-06-30 2021-06-30 Sediment removal device for hydraulic engineering

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110740151.0A CN113431116B (en) 2021-06-30 2021-06-30 Sediment removal device for hydraulic engineering

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CN113431116A CN113431116A (en) 2021-09-24
CN113431116B true CN113431116B (en) 2022-12-02

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Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0689556B2 (en) * 1990-05-29 1994-11-09 太平洋機工株式会社 Dredging method and dredging device
JP2813738B2 (en) * 1991-02-28 1998-10-22 株式会社ハッコー Soil vacuum drilling rig
CN107916689A (en) * 2017-10-06 2018-04-17 中国水利水电科学研究院 A kind of environment-protective desilting device and its application process
CN211395801U (en) * 2019-11-13 2020-09-01 李建 Multi-functional hydraulic engineering desilting tube head
CN212689051U (en) * 2020-01-11 2021-03-12 宁夏瑞禾建设工程有限公司 A ditch desilting device for hydraulic engineering
CN212224013U (en) * 2020-04-29 2020-12-25 四川中建建业工程有限责任公司 Silt cleaning device for water conservancy construction
CN113045155B (en) * 2021-04-22 2022-12-27 河南省水利第一工程局 Automatic drying device that clears up of silt for hydraulic engineering

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Inventor after: Li Yudong

Inventor after: Chen Bin

Inventor after: Han Na

Inventor after: Li Xigang

Inventor after: Yue Xianzheng

Inventor after: Du Juan

Inventor before: Yue Yuanyi

Inventor before: Chen Bin

Inventor before: Han Na

Inventor before: Li Xigang

Inventor before: Yue Xianzheng

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