CN111719617A - Underwater bottom mud closed dredging device and method - Google Patents
Underwater bottom mud closed dredging device and method Download PDFInfo
- Publication number
- CN111719617A CN111719617A CN202010587716.1A CN202010587716A CN111719617A CN 111719617 A CN111719617 A CN 111719617A CN 202010587716 A CN202010587716 A CN 202010587716A CN 111719617 A CN111719617 A CN 111719617A
- Authority
- CN
- China
- Prior art keywords
- sludge
- dredging
- mud
- collecting
- pipeline
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
- E02F3/9275—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 with axis of rotation parallel to longitudinal axis of the suction pipe
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a water bottom sludge sealing and dredging device which comprises a cylindrical dredging bin, wherein the bottom of the dredging bin is opened and is inserted into water bottom sludge, a sealed top cover is arranged at the top of the dredging bin, a hole is formed in the top cover and is connected with a pipeline, the opening of the pipeline is higher than the water surface, and a circular sludge collecting tank surrounded by enclosing plates is arranged at the center in the dredging bin; the top of the sludge collecting tank is communicated with a pipeline, and a sludge conveying device is arranged in the pipeline; a plurality of fan-shaped grooves separated by groove separating plates are arranged on the outer side of the sludge collecting pool; a communicated collecting opening is formed between the sludge collecting tank and the fan-shaped grooves, and a sludge scraping plate is arranged in each fan-shaped groove; the mud scraping plate moves and scrapes mud towards the mud collecting pool along the radial direction, and the mud at the bottom is sent into the mud collecting pool through the collecting opening; and the sludge conveying device in the pipeline conveys the sludge in the sludge collecting tank to the sludge collecting equipment on the water surface. The invention also provides a method for sealing and dredging the underwater sludge. The invention effectively prevents the secondary pollution of the dredging process to the water body.
Description
Technical Field
The invention belongs to the technical field of hydraulic engineering, and relates to a dredging device and a dredging method for water bottom polluted bottom mud of rivers, lakes, reservoirs and the like, in particular to a device and a method for closed dredging of the water bottom mud.
Background
At present, the bottom mud is an important component of natural water area as sediment of river and sea, however, when the water body is polluted, a part of pollutants in the water can be adsorbed on the particles or automatically deposited and then accumulated in the bottom mud to become polluted bottom mud. The polluted bottom sludge is a potential pollution source for lakes. When the lake environment changes, the nutrient salt in the bottom mud can be released again, and secondary pollution is caused to the bottom mud. Research shows that when the external pollution sources of the lake and the like are controlled, the bottom mud can become the primary pollution source, and the release of seasonal nutritive salt can maintain the eutrophication state for decades; according to the report of relevant documents, the endogenous pollution load of Hangzhou west lake reaches 41% of the exogenous pollution load; the endogenous pollution load of the Anhui lake is 21% of the external load; while 80% of nitrogen and 90% of phosphorus in Yunnan pond are distributed in the bottom mud. The effective measure for treating the polluted bottom sediment is bottom sediment dredging, namely, the pollutant release of the bottom sediment is reduced by digging out the polluted bottom sediment on the surface layer, so that the pollution source of the bottom sediment in the lake can be reduced, the volume of the lake can be increased, and the growth of aquatic plants can be controlled, for example: in Trummen lake in Sweden, after 1m thick bottom mud on the surface layer is removed, the water depth is increased by 1.1-1.7m, the concentration of TP (total phosphorus) is rapidly reduced, and the water depth is maintained for 18 years; the Dian Chi Cai Hai first-stage engineering in China dredges the sediment by 400 ten thousand meters, after the engineering is implemented, the water body in the dredging area is not black and odorous any more, the water quality is obviously improved, and the transparency of the water body is improved to 0.8 meter from the original value of less than 0.37 meter.
At present, the main tool for dredging the sediment is a modern dredger, which can cause the problems of re-suspension of polluted sediment, reduction of transparency of a water body, and secondary pollution caused by the diffusion of high-concentration organic matters in the sediment and interstitial water in the dredging process.
Disclosure of Invention
The invention provides a device and a method for closed dredging of bottom sediment at the bottom of a water body, aiming at solving the technical problems in the prior art, realizing efficient and rapid dredging and simultaneously reducing the secondary pollution to the water body in the dredging process.
The technical scheme adopted by the invention for solving the technical problems in the prior art is as follows: a kind of underwater silt closes the desilting device, including the cylindrical desilting storehouse, the bottom opening of the desilting storehouse, insert in underwater silt, there are sealed top covers on the top of the desilting storehouse, there are holes on the top cover, connect with the pipeline in the seal of this drill way, the pipeline mouth is higher than the surface of water, there is a round silt collecting pit enclosed by coaming in the centre place in the desilting storehouse; the top of the sludge collecting tank is communicated with a pipeline, and a sludge conveying device is arranged in the pipeline; a plurality of fan-shaped grooves separated by groove separating plates are arranged on the outer side of the sludge collecting pool; a communicated collecting opening is formed between the sludge collecting tank and the fan-shaped grooves, and a sludge scraping plate driven by a machine is arranged in each fan-shaped groove; the mud scraping plate moves and scrapes mud towards the mud collecting pool along the radial direction, and the mud at the bottom is sent into the mud collecting pool through the collecting opening; the sludge conveying device in the pipeline conveys the sludge in the sludge collecting pool to the sludge collecting equipment on the water surface; the initial position of the mud scraping plate is arranged at the position close to the side wall of the dredging bin, a telescopic pressure head is arranged on the top cover and above the initial position of the mud scraping plate, and the telescopic pressure head is used for pressing the mud scraping plate into the sludge and adjusting the depth of the mud scraping plate inserted into the sludge; the water discharging device is used for discharging water in the dredging bin.
Further, the sludge conveying device comprises a sludge pump and a sludge pipe connected with the sludge pump, and the sludge pump pumps the sludge in the sludge collecting tank and conveys the sludge to the sludge collecting equipment on the water surface through the sludge pipe.
Further, the sludge conveying device comprises a lifter, and the lifter is provided with a feeding port; be equipped with the guiding groove between collection mouth and pan feeding mouth, silt is collected to the pan feeding mouth of lifting machine through the guiding groove.
Further, the elevator is a bucket elevator.
Further, the elevator is a TD belt type bucket elevator, an NE type plate chain type bucket elevator, an HL type ring chain centrifugal type bucket elevator or a Z type bucket elevator.
Further, the hoist is a screw hoist.
Further, the sludge conveying device comprises a sludge pump and a lifter, and the lifter is provided with a feeding port; the output port of the sludge pump is connected with a pipeline, the output port of the pipeline is positioned above the feeding port of the elevator, and sludge in the sludge collecting tank is conveyed to the feeding port of the elevator through the sludge pump.
Furthermore, the side wall of the dredging bin is surrounded by an iron plate, and the diameter of the side wall is 30-50 m.
Furthermore, the mud scraper is an arched mud scraper which is elastically bent and deformed; the length before deformation is less than or equal to the outer arc length of the fan-shaped groove.
The invention also provides a water bottom sludge closed dredging method using the water bottom sludge closed dredging device, which comprises the following steps:
transporting the dredging bin to a specified place, and inserting the bottom of the dredging bin into the sludge; installing a sludge conveying device;
step two, starting a drainage device to drain water in the dredging bin;
driving a mud scraper to collect the sludge in the fan-shaped groove into a sludge collecting pool;
and step four, conveying the sludge in the sludge collecting pool to sludge collecting equipment on the water surface through a sludge conveying device.
The invention has the advantages and positive effects that: the invention realizes the regional division and the sealing of the polluted bottom sediment at the bottom of the reservoir by utilizing the dredging bin, the top cover, the groove separating plate and the like, realizes the effective movement in the fan-shaped groove by utilizing the arc-shaped mud scraping plate, realizes the collection and the treatment of the polluted bottom sediment by utilizing the sludge collecting pool and the pipeline, has quick and high-efficiency whole process, ensures that once the dredging bin is inserted into the bottom riverbed, the water body outside the device is not influenced by the dredging process of the bottom sediment, and effectively prevents the secondary pollution of the dredging process to the water body.
Drawings
FIG. 1 is a schematic structural view of a water bottom sludge closed dredging device of the present invention;
FIG. 2 is a schematic view of the structure of a sector groove and a mud scraper in the dredging bin of the present invention.
In the figure, 1, a desilting bin; 2. a top cover; 3. a sector groove; 4. an arcuate mud scraper; 5. a slotted plate; 6. a sludge collection tank; 7. a pipeline; 8. water bottom sludge; 9. a bottom riverbed.
Detailed Description
For further understanding of the contents, features and effects of the present invention, the following embodiments are enumerated in conjunction with the accompanying drawings, and the following detailed description is given:
referring to fig. 1 to 2, a water bottom sludge closed dredging device comprises a cylindrical dredging bin 1, wherein the bottom of the dredging bin 1 is open and inserted into water bottom sludge 8, a sealed top cover 2 is arranged at the top of the dredging bin 1, a hole is formed in the top cover 2, a pipeline 7 is hermetically connected to the hole, the opening of the pipeline 7 is higher than the water surface, and a circular sludge collecting tank 6 enclosed by a surrounding plate is arranged at the center of the inside of the dredging bin 1; the top of the sludge collecting tank 6 is communicated with a pipeline 7, and a sludge conveying device is arranged in the pipeline 7; a plurality of fan-shaped grooves 3 separated by a groove separating plate 5 are arranged on the outer side of the sludge collecting tank 6; a communicated collecting opening is formed between the sludge collecting tank 6 and the fan-shaped grooves 3, and a mechanically driven sludge scraper is arranged in each fan-shaped groove 3; the mud scraping plates move to scrape mud towards the mud collecting pool 6 along the radial direction, and the mud 8 at the bottom of the water is sent into the mud collecting pool 6 through the collecting opening; a sludge conveying device in the pipeline 7 conveys the sludge in the sludge collecting tank 6 to sludge collecting equipment on the water surface; the initial position of the mud scraper is arranged at the position close to the side wall of the dredging bin 1, and a telescopic pressure head is arranged on the top cover 2 and above the initial position of the mud scraper and is used for pressing the mud scraper into the sludge and adjusting the depth of the mud scraper inserted into the sludge; the device also comprises a drainage device which is used for discharging the water in the dredging bin 1.
The height of the dredging bin 1 is determined according to the dredging depth required. The mechanical drive can adopt hydraulic drive, pneumatic drive or motor drive. For example, a hydraulic cylinder, an air cylinder or an electric cylinder driven by a motor is adopted to drive a mud scraper to scrape mud.
The telescopic pressure head can be driven by an electric push rod and the like, and the telescopic length is adjustable.
The hydraulic cylinder, the air cylinder or the electric cylinder driven by the motor can be adopted to drive the mud scraping plate to scrape mud, so that the mud scraping plate can move along the radial direction of the dredging bin 1 in a reciprocating way. Can be on top cap 2 and be located the mud scraper initial position top, set up electric putter, electric putter front end installation pressure head constitutes flexible pressure head, drives electric putter, impresses the mud scraper in the silt to adjustable mud scraper inserts the silt degree of depth. The sludge is inserted into the sludge by about 5-6 cm each time.
The drainage device can be provided with a water pump and a drainage pipe communicated with the water pump, and the water in the dredging bin 1 is discharged out of the dredging bin 1 through the drainage pipe.
The sludge conveying device may include a sludge pump that pumps the sludge in the sludge collecting tank 6 and conveys the sludge to the sludge collecting apparatus on the water surface through a sludge pipe, and a sludge pipe connected to the sludge pump.
The sludge conveying device can also comprise a lifter, and the lifter is provided with a feeding port; a guide groove can be arranged between the collecting port and the feeding port, and sludge is collected to the feeding port of the elevator through the guide groove. The lifter can lift the sludge and the like to the water surface vertically or obliquely.
The elevator can be a bucket elevator. For example, the lifter can be a TD type belt type bucket lifter, an NE type plate chain type bucket lifter, an HL type ring chain centrifugal type bucket lifter or a Z type bucket lifter. The hoist may also be a screw hoist.
The sludge conveying device can also comprise a sludge pump and a lifter, and the lifter is provided with a feeding port; the output port of the sludge pump is connected with a pipeline, the output port of the pipeline can be positioned above the feeding port of the elevator, and sludge in the sludge collecting tank 6 is conveyed to the feeding port of the elevator through the sludge pump. And then the sludge is conveyed into sludge collecting equipment on the water surface by a lifter.
Silt collecting equipment on the surface of water can be equipped with the material receiving mouth, and the material receiving mouth can dock with silt conveyor's discharge gate or delivery outlet, and silt collecting equipment can be equipped with the conveyer belt, and the conveyer belt can carry silt to cabin etc..
The side wall of the dredging bin 1 can be surrounded by iron plates, and the diameter can be 30m-50 m.
The mud scraper can be an arched mud scraper 4 which is elastically bent and deformed; the length before deformation can be less than or equal to the outer arc length of the fan-shaped groove 3. The arched mud scraping plate 4 can be driven by a hydraulic cylinder, an air cylinder or an electric cylinder driven by a motor to be pushed into the sludge collecting tank 6, and the sludge in the fan-shaped groove 3 is pushed into the sludge collecting tank 6.
The devices and structures of the desilting bin 1, the TD type belt type bucket elevator, the NE type plate chain type bucket elevator, the HL type ring chain centrifugal type bucket elevator, the Z type bucket elevator, the spiral elevator, the arc-shaped mud scraping plate 4, the grooving plate 5, the mud pump, the hydraulic cylinder, the air cylinder, the electric push rod, the telescopic pressure head and the like can adopt the products and structures in the prior art and adopt the conventional technical means to carry out manufacturing, installation and driving control.
The invention also provides an embodiment of a water bottom sludge closed dredging method by utilizing the water bottom sludge closed dredging device, which comprises the following steps:
firstly, transporting the dredging bin 1 to a specified place, and inserting the bottom of the dredging bin 1 into sludge; installing a drainage device, a sludge conveying device and a sludge scraper; the dredging bin 1 is floated and transported to a designated place through a ship or an air cushion and the like, the dredging bin 1 is sunk, and after sludge is inserted into the bottom of the dredging bin 1, the sludge in a dredging range is sealed; and installing a drainage device, a sludge conveying device, a mud scraper and the like in place.
And step two, starting a drainage device to drain the water in the dredging bin 1.
Driving a mud scraper to collect the sludge in the fan-shaped groove 3 into a sludge collecting tank 6; the mud scraper is driven by a hydraulic cylinder, an air cylinder or a motor-driven electric cylinder and the like to scrape mud, and the mud in each fan-shaped groove 3 is pushed to the direction of the mud collecting tank 6, so that the mud is gradually scraped into the mud collecting tank 6.
And step four, conveying the sludge in the sludge collecting tank 6 to sludge collecting equipment on the water surface through a sludge conveying device. And (3) conveying all the collected sludge out by adopting a sludge conveying device through a pipeline 7 to finish the dredging work.
After dredging is finished, buoyancy generated by inflating the air cushion can be adopted to enable devices such as the dredging bin 1 to float upwards from the sludge, or the dredging bin 1 is hoisted by adopting a hoisting method and transported to the next dredging place.
The working principle of the invention is further illustrated below by a preferred embodiment of the invention:
a kind of underwater silt seals the desilting device, including the cylindrical desilting storehouse 1, the bottom opening of the desilting storehouse 1, insert in underwater silt 8, there is sealed top cap 2 on the top of the desilting storehouse 1, there are holes on the top cap 2, connect with the pipeline 7 in the sealed place of this drill way, the pipeline 7 mouth is higher than the surface of water, there is a round silt collecting pit 6 enclosed by coaming in the centre place in the desilting storehouse 1; the top of the sludge collecting tank 6 is communicated with a pipeline 7, and a sludge conveying device is arranged in the pipeline 7; a plurality of fan-shaped grooves 3 separated by a groove separating plate 5 are arranged on the outer side of the sludge collecting tank 6; a communicated collecting port is arranged between the sludge collecting tank 6 and the fan-shaped grooves 3, and an arched mud scraper 4 driven by a machine is arranged in each fan-shaped groove 3; the mud scraper is an arched mud scraper 4 which is elastically bent and deformed; the mud scraper feeds the bottom mud 8 into the mud collecting tank 6 through a collecting port; a sludge conveying device in the pipeline 7 conveys the sludge in the sludge collecting tank 6 to sludge collecting equipment on the water surface; the device also comprises a drainage device which is used for discharging the water in the dredging bin 1. The drainage device can comprise a drainage pump such as a submersible pump, a centrifugal pump and the like and a drainage pipe connected with the drainage pump, and the water in the dredging bin 1 is drained out of the dredging bin 1 through the drainage pipe.
The dredging bin 1 is surrounded by steel plates to form a cylinder shape, the diameter is 30m-50m, the inside of the dredging bin is an underwater dredging area, and the height is determined according to the depth of dredging required; when the device works, the bottom of the dredging bin 1 is integrally inserted into sludge, and a circular closed dredging area is divided; the top of the dredging bin 1 is provided with a top cover 2 which completely covers the closed dredging area, and the middle of the top cover 2 is provided with a round hole and is connected with a pipeline 7; a plurality of groove dividing plates 5 are arranged in a closed dredging area surrounded by the dredging bin 1, and the dredging area is divided into 8-10 fan-shaped grooves 3; a water pumping and draining device is arranged in each fan-shaped groove 3 and is used for draining water in the dredging bin 1; an arched mud scraper 4 is arranged in each fan-shaped groove 3; the arched mud scraping plate 4 has the characteristic of elastic deformation, the shape is changeable in the mud scraping process so as to adapt to the change of the width of the fan-shaped groove 3, and the depth of the groove dividing plate 5 is determined according to the depth of underwater silt 8 required to be desilted; the arched mud scraping plate 4 is driven by a machine to scrape the water bottom mud 8 in the fan-shaped groove 3 into the middle mud collecting tank 6; the water and sludge in the sludge collection tank 6 are discharged through a pipe 7.
A method for closing and dredging underwater sludge comprises the following steps:
firstly, devices such as a dredging bin 1 and the like are transported to a specified place in a floating mode, the dredging bin 1 is transported to the specified place in a floating mode through a ship or an air cushion and the like, the dredging bin 1 is made to sink, and after sludge is inserted into the bottom of the dredging bin 1, the sludge in a dredging range is sealed; and installing a drainage device, a sludge conveying device, a mud scraper and the like in place. And a drainage device is adopted to drain the water in the dredging bin 1.
The height of the arched mud scraper 4 in the fan-shaped groove 3 can be adjusted to enable the arched mud scraper 4 to be inserted into 5cm of sludge, the arched mud scraper 4 is driven to move towards the direction of the sludge collection pool 6, and after once mud scraping is completed, the mud scraper returns to the position close to the side wall of the dredging bin 1, namely the initial position; the height of the arcuate scraper 4 can be adjusted again to insert it 5cm into the sludge and the scraping operation repeated until the specified depth of dredging. During this time, the sludge in the sludge collection tank 6 is transported away via the pipe 7. And after the specified dredging depth is reached, all the sludge in the sludge collecting tank 6 is output. After dredging is finished, buoyancy generated by inflating the air cushion can be adopted to enable devices such as the dredging bin 1 to float upwards from the sludge, or the dredging bin 1 is hoisted by adopting a hoisting method and transported to the next dredging place.
In this embodiment, the total dredging depth is 0.5 m; the coaming of the dredging bin 1 is inserted into the bottom of the surface of the bottom riverbed 9 for 1m, the diameter of the enclosed dredging area is 50m, and the height of the cylinder wall is 2 m; the whole cylinder is divided into 8 fan-shaped grooves 3 by 8 groove dividing plates 5 in total; the pipe 7 has a diameter of 2 m.
The above-mentioned embodiments are only for illustrating the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to carry out the same, and the present invention shall not be limited to the embodiments, i.e. the equivalent changes or modifications made within the spirit of the present invention shall fall within the scope of the present invention.
Claims (10)
1. A kind of underwater silt closes the desilting device, characterized by, including the cylindrical desilting storehouse, the bottom opening of the desilting storehouse, insert in underwater silt, there is sealed top cover at the top of the desilting storehouse, there are holes on the top cover, connect with the pipeline in the seal of this drill way, the pipeline mouth is higher than the surface of water, there is a round silt collecting pit enclosed by coaming in the centre of the desilting storehouse; the top of the sludge collecting tank is communicated with a pipeline, and a sludge conveying device is arranged in the pipeline; a plurality of fan-shaped grooves separated by groove separating plates are arranged on the outer side of the sludge collecting pool; a communicated collecting opening is formed between the sludge collecting tank and the fan-shaped grooves, and a sludge scraping plate driven by a machine is arranged in each fan-shaped groove; the mud scraping plate moves and scrapes mud towards the mud collecting pool along the radial direction, and the mud at the bottom is sent into the mud collecting pool through the collecting opening; the sludge conveying device in the pipeline conveys the sludge in the sludge collecting pool to the sludge collecting equipment on the water surface; the initial position of the mud scraping plate is arranged at the position close to the side wall of the dredging bin, a telescopic pressure head is arranged on the top cover and above the initial position of the mud scraping plate, and the telescopic pressure head is used for pressing the mud scraping plate into the sludge and adjusting the depth of the mud scraping plate inserted into the sludge; the water discharging device is used for discharging water in the dredging bin.
2. The underwater sludge closure dredging device of claim 1, wherein the sludge conveying means comprises a sludge pump and a sludge pipe connected to the sludge pump, the sludge pump pumping the sludge in the sludge collecting tank and conveying the sludge through the sludge pipe to the sludge collecting equipment on the water surface.
3. The underwater sludge sealing and dredging device of claim 1, wherein the sludge conveying device comprises a lifter, and the lifter is provided with a feeding port; be equipped with the guiding groove between collection mouth and pan feeding mouth, silt is collected to the pan feeding mouth of lifting machine through the guiding groove.
4. The bottom sludge containment and dredging device of claim 3, wherein the elevator is a bucket elevator.
5. The bottom sludge closed dredging device of claim 4, wherein the lifter is TD belt type bucket lifter, NE type plate chain type bucket lifter, HL type ring chain centrifugal type bucket lifter or Z type bucket lifter.
6. The bottom sludge containment and dredging device of claim 3, wherein the elevator is a screw elevator.
7. The underwater sludge sealing and dredging device according to claim 1, wherein the sludge conveying device comprises a sludge pump and a lifter, and the lifter is provided with a feeding port; the output port of the sludge pump is connected with a pipeline, the output port of the pipeline is positioned above the feeding port of the elevator, and sludge in the sludge collecting tank is conveyed to the feeding port of the elevator through the sludge pump.
8. The underwater sludge closed dredging device of claim 1, wherein the side wall of the dredging bin is surrounded by iron plates and has a diameter of 30m-50 m.
9. The underwater sludge containment and dredging device of claim 1, wherein the scraper is an arcuate scraper that is elastically deformed by bending; the length before deformation is less than or equal to the outer arc length of the fan-shaped groove.
10. A method of bottom sludge containment dredging using the bottom sludge containment dredging device of any one of claims 1-9, the method comprising the steps of:
transporting the dredging bin to a specified place, and inserting the bottom of the dredging bin into the sludge; installing a sludge conveying device;
step two, starting a drainage device to drain water in the dredging bin;
driving a mud scraper to collect the sludge in the fan-shaped groove into a sludge collecting pool;
and step four, conveying the sludge in the sludge collecting pool to sludge collecting equipment on the water surface through a sludge conveying device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010587716.1A CN111719617B (en) | 2020-06-24 | 2020-06-24 | Device and method for dredging underwater bottom mud in sealing mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010587716.1A CN111719617B (en) | 2020-06-24 | 2020-06-24 | Device and method for dredging underwater bottom mud in sealing mode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111719617A true CN111719617A (en) | 2020-09-29 |
| CN111719617B CN111719617B (en) | 2023-05-12 |
Family
ID=72568742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010587716.1A Active CN111719617B (en) | 2020-06-24 | 2020-06-24 | Device and method for dredging underwater bottom mud in sealing mode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111719617B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113045173A (en) * | 2020-10-26 | 2021-06-29 | 无锡德林海环保科技股份有限公司 | Trap type sludge in-situ treatment device and method |
| CN115288229A (en) * | 2022-09-05 | 2022-11-04 | 天津大学 | Closed disturbance-free dredging system and dredging method |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006022490A (en) * | 2004-07-06 | 2006-01-26 | Chugoku Electric Power Co Inc:The | Dredging equipment and rake device |
| CN201027320Y (en) * | 2007-04-12 | 2008-02-27 | 广州普得环保设备有限公司 | Novel multifunctional dredge boat |
| US20090031591A1 (en) * | 2007-07-30 | 2009-02-05 | Vladimir Anatol Shreider | Apparatus and a method for constructing an underground continuous filling wall and stratum |
| CN102650137A (en) * | 2011-02-25 | 2012-08-29 | 温昌辉 | Device is dredged to submarine silt |
| CN202482907U (en) * | 2011-12-27 | 2012-10-10 | 张武 | Underwater sludge absorbing chamber |
| CN107956231A (en) * | 2017-12-13 | 2018-04-24 | 李林 | A kind of high-pressure jet formula underwater desilting device and dredger |
| JP2019015132A (en) * | 2017-07-10 | 2019-01-31 | 岩夫 松原 | Dredging structure |
| CN110130430A (en) * | 2019-04-04 | 2019-08-16 | 浙江天姥建设发展有限公司 | Channel cleanout device with agitating function |
| CN110185081A (en) * | 2019-07-08 | 2019-08-30 | 毅康科技有限公司 | A kind of rubbish silt displacement mechanism for river regulation |
| CN209339215U (en) * | 2018-12-19 | 2019-09-03 | 江苏碧水源环境科技有限责任公司 | Black and odorous water mud collection device |
| CN212427290U (en) * | 2020-06-24 | 2021-01-29 | 天津大学 | Underwater bottom mud closed dredging device |
-
2020
- 2020-06-24 CN CN202010587716.1A patent/CN111719617B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006022490A (en) * | 2004-07-06 | 2006-01-26 | Chugoku Electric Power Co Inc:The | Dredging equipment and rake device |
| CN201027320Y (en) * | 2007-04-12 | 2008-02-27 | 广州普得环保设备有限公司 | Novel multifunctional dredge boat |
| US20090031591A1 (en) * | 2007-07-30 | 2009-02-05 | Vladimir Anatol Shreider | Apparatus and a method for constructing an underground continuous filling wall and stratum |
| CN102650137A (en) * | 2011-02-25 | 2012-08-29 | 温昌辉 | Device is dredged to submarine silt |
| CN202482907U (en) * | 2011-12-27 | 2012-10-10 | 张武 | Underwater sludge absorbing chamber |
| JP2019015132A (en) * | 2017-07-10 | 2019-01-31 | 岩夫 松原 | Dredging structure |
| CN107956231A (en) * | 2017-12-13 | 2018-04-24 | 李林 | A kind of high-pressure jet formula underwater desilting device and dredger |
| CN209339215U (en) * | 2018-12-19 | 2019-09-03 | 江苏碧水源环境科技有限责任公司 | Black and odorous water mud collection device |
| CN110130430A (en) * | 2019-04-04 | 2019-08-16 | 浙江天姥建设发展有限公司 | Channel cleanout device with agitating function |
| CN110185081A (en) * | 2019-07-08 | 2019-08-30 | 毅康科技有限公司 | A kind of rubbish silt displacement mechanism for river regulation |
| CN212427290U (en) * | 2020-06-24 | 2021-01-29 | 天津大学 | Underwater bottom mud closed dredging device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113045173A (en) * | 2020-10-26 | 2021-06-29 | 无锡德林海环保科技股份有限公司 | Trap type sludge in-situ treatment device and method |
| CN115288229A (en) * | 2022-09-05 | 2022-11-04 | 天津大学 | Closed disturbance-free dredging system and dredging method |
| CN115288229B (en) * | 2022-09-05 | 2023-12-01 | 天津大学 | Closed disturbance-free dredging system and dredging method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111719617B (en) | 2023-05-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209891272U (en) | Silt cleaning device for hydraulic engineering | |
| CN111719617A (en) | Underwater bottom mud closed dredging device and method | |
| CN213476991U (en) | River channel dredging device | |
| CN111321772A (en) | Ecological farmland irrigation excavating equipment | |
| CN212427290U (en) | Underwater bottom mud closed dredging device | |
| KR20200093998A (en) | Eco-friendly dredger for pollutants sediment of sea bottom | |
| EP0438683B1 (en) | Method and device for dumping fine material on the sea bed or slopes during dredging | |
| US4600338A (en) | Mud removal process and apparatus | |
| CN1503868A (en) | Method for hydraulic subsea dredging | |
| US3881530A (en) | Plant for evacuating dredged material | |
| CN105696639A (en) | Comprehensive treatment vessel of river sludge | |
| CN112392083B (en) | Underwater dredging device for hydraulic engineering | |
| KR101925607B1 (en) | apparatus for removing sludeg in river and method for processing there of | |
| CN214167724U (en) | Sedimentation type sludge in-situ treatment device | |
| CN110080321A (en) | A kind of underwater intelligent bull-dozer | |
| KR20200093902A (en) | Eco-friendly dredger for pollutants sediment of sea bottom | |
| JP2009022834A (en) | Apparatus for recovering useless algae, floating mud and the like floating or depositing in water and on water bottom | |
| EP0526448B1 (en) | Serpent sediment-sluicing system | |
| CN110904985B (en) | Full-automatic drainage recycling system for building foundation pit | |
| KR101544196B1 (en) | Excavator for river sludge | |
| CN210394103U (en) | Small-size river lake is dredged and silt treatment facility | |
| CN113045157A (en) | Sedimentation type sludge in-situ treatment device and method | |
| KR102237084B1 (en) | Eco-friendly dredger for pollutants sediment of sea bottom | |
| CN110847275A (en) | Continuous anti-blocking separation device and method for sludge and garbage dredged in small and medium-sized river channels | |
| WO2019187174A1 (en) | Vacuum consolidation dredging method, tower air-tight loading caisson, and dedicated work ship |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |