CN120139312A - Underwater excavation construction device and method for harbor construction - Google Patents
Underwater excavation construction device and method for harbor construction Download PDFInfo
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- CN120139312A CN120139312A CN202510629005.9A CN202510629005A CN120139312A CN 120139312 A CN120139312 A CN 120139312A CN 202510629005 A CN202510629005 A CN 202510629005A CN 120139312 A CN120139312 A CN 120139312A
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- mixed liquid
- filter screen
- conical filter
- water outlet
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- 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
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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
- E02F3/8808—Stationary installations, e.g. installations using spuds or other stationary supports
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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
- E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
- E02F3/905—Manipulating or supporting suction pipes or ladders; Mechanical supports or floaters therefor; pipe joints for suction pipes
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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
- E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
- E02F3/907—Measuring or control devices, e.g. control units, detection means or sensors
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F7/00—Equipment for conveying or separating excavated material
- E02F7/06—Delivery chutes or screening plants or mixing plants mounted on dredgers or excavators
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F7/00—Equipment for conveying or separating excavated material
- E02F7/10—Pipelines for conveying excavated materials
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
本发明公开了一种海港建筑水下开挖施工装置及方法，属于开挖施工设备技术领域。该海港建筑水下开挖施工装置，包括抽吸泵和输送管，还包括：套壳侧壁设有排料口，套壳内设有隔板，隔板将套壳内腔分为左腔体和右腔体，隔板上设有出水口；筒体通过出水口与左腔体连通，筒体靠近出水口一端侧壁设有多个第一通料孔；螺旋环板用于对进入筒体内腔的混合液导向，在螺旋环板的导向作用下，筒体内腔的混合液呈螺旋状向出水口一端运动；套壳侧壁位于锥形过滤网的边缘处设有多个第二通料孔。本发明的海港建筑水下开挖施工装置，在对港口进行开挖施工时，能防止输送管在输送混合液时，混合液中的砾石对输送管造成冲击和磨损，并降低输送管堵塞的风险。
The present invention discloses an underwater excavation construction device and method for a seaport building, and belongs to the technical field of excavation construction equipment. The underwater excavation construction device for a seaport building includes a suction pump and a delivery pipe, and also includes: a discharge port is provided on the side wall of the casing, a partition is provided inside the casing, the partition divides the inner cavity of the casing into a left cavity and a right cavity, and a water outlet is provided on the partition; the cylinder is connected to the left cavity through the water outlet, and a plurality of first material holes are provided on the side wall of the cylinder near the water outlet; a spiral ring plate is used to guide the mixed liquid entering the inner cavity of the cylinder, and under the guiding action of the spiral ring plate, the mixed liquid in the inner cavity of the cylinder moves in a spiral shape toward one end of the water outlet; a plurality of second material holes are provided on the side wall of the casing at the edge of the conical filter screen. The underwater excavation construction device for a seaport building of the present invention can prevent the gravel in the mixed liquid from causing impact and wear on the delivery pipe when the mixed liquid is being transported by the delivery pipe during the excavation construction of the port, and reduce the risk of blockage of the delivery pipe.
Description
Technical Field
The invention relates to the technical field of excavation construction equipment, in particular to a harbor building underwater excavation construction device and method.
Background
Harbors are becoming increasingly more demanding in terms of construction and technology as a key hub for connecting land to the ocean. The construction of modern deepwater ports is a core link for improving shipping efficiency and guaranteeing navigation safety under the large-scale trend of ships. Under the background, the construction of the deepwater wharf becomes an important ring for improving the transportation capacity of the harbor, in the engineering of constructing the deepwater wharf of the harbor, the foundation of the harbor building needs to be constructed under the water of the harbor, and the foundation engineering of the harbor directly determines the stability and the functionality of the wharf and other structures. When the foundation engineering of the harbor is established, the soft soil layer, the sand layer and the gravel layer of the seabed are required to be excavated until the soft soil layer, the sand layer and the gravel layer are excavated to a harder rock layer, so that stable supporting force is provided for the building foundation.
When excavating the soft soil layer on the seabed, excavating construction equipment such as cutter suction dredger is often needed, the excavating speed of the soft soil layer on the seabed can be greatly improved by utilizing the cutter suction dredger, the core component of the cutter suction dredger comprises a crushing mechanism, a suction pump and a jet impact part, when excavating construction, the soft soil layer hardened on the seabed is crushed by utilizing the crushing mechanism firstly, then high-pressure jet is sprayed by utilizing the jet impact part so as to carry out jet mixing on crushed soft soil blocks, and finally sediment water flow is mixed by utilizing the suction pump, so that the soft soil layer is excavated.
Because the method of cofferdam construction is often used when the harbor wharf is constructed, the sediment-containing seawater pumped by the cutter suction dredger needs to be transported by a long distance and then is discharged into the sea or a sedimentation tank far away from the construction site, and in the process, the technical challenges brought by complex geological conditions are often faced. Because gravel and broken shells with the grain diameter exceeding 30mm are often mixed in a soft soil layer, a non-Newtonian fluid medium with the solid phase volume concentration reaching 15-25% is formed, and the mixed medium can obviously increase the system load in the conveying process, on one hand, the conveying resistance of a suction pump is improved by 30-50% compared with that of a pure sediment medium, and on the other hand, three-body abrasion is generated on the pipe wall by gravel particles in turbulent flow, particularly on the elbow part of a conveying pipe. When the flow rate is below the critical fluidization velocity (typically greater than 2.5 m/s), coarse gravel tends to deposit at the bottom of the pipeline forming "sand ridges", which not only increases pumping energy consumption but may also cause plugging events.
Disclosure of Invention
The invention aims to overcome the problems in the prior art, and provides an underwater excavation construction device for a harbor building, which can prevent gravel in a mixed liquid from impacting and wearing a conveying pipe when the conveying pipe conveys the mixed liquid during excavation construction of a harbor, and reduce the risk of blockage of the conveying pipe.
The invention provides a harbor building underwater excavation construction device, which comprises a suction pump and a conveying pipe, and further comprises:
The inner part of the shell is provided with a baffle plate, the inner cavity of the shell is divided into a left cavity and a right cavity by the baffle plate, the left cavity is communicated with the conveying pipe, the baffle plate is provided with a water outlet, and the side wall of the right cavity is provided with a discharge hole;
The cylinder is arranged in the right cavity, one end of the cylinder is communicated with the suction pump, the other end of the cylinder is communicated with the left cavity through a water outlet, and a plurality of first material through holes are formed in the side wall of one end, close to the water outlet, of the cylinder;
the spiral ring plate is arranged in the inner cavity of the cylinder body and used for guiding the mixed liquid entering the inner cavity of the cylinder body, and under the guiding action of the spiral ring plate, the mixed liquid in the inner cavity of the cylinder body moves towards one end of the water outlet in a spiral manner;
The conical filter screen is arranged in the left cavity, the tip end of the conical filter screen faces the water outlet, and a plurality of second material through holes are formed in the edge of the conical filter screen, which is positioned on the side wall of the casing.
Preferably, the barrel rotates and connects in the right cavity of cover shell, is connected with actuating mechanism on the cover shell, the toper filter screen is connected with the swivel outward, the swivel is connected in barrel and is close to delivery port one end, and the outer wall of swivel is laminated mutually with the inner wall of cover shell, and the one end and the delivery port intercommunication of barrel of swivel ring hole, the lateral wall of swivel are equipped with the third feed port, under actuating mechanism's drive, and the barrel drives the swivel and rotates for third feed port intermittent type nature and second feed port intercommunication.
Preferably, the annular ring of swivel is connected with the support in the internal connection, the support middle part is equipped with the connecting axle, and the connecting axle sets up with the toper filter screen is coaxial, be equipped with a plurality of spokes on the support, every spoke all sets up along the generating line direction of toper filter screen, every spoke all keeps away from a side butt of the delivery port of barrel with the toper filter screen, the one end and the leg joint of every spoke, the other end and the connecting axle of every spoke all are connected.
Preferably, the driving mechanism comprises a transmission shaft and a turbofan, the swivel is far away from the water diversion valve which is used for diverting the mixed liquid in the annular hole, the conveying pipe is communicated with the first water diversion port of the water diversion valve, the second water diversion port of the water diversion valve is communicated with the cylinder body, the cylinder body is provided with a water outlet, the transmission shaft is rotationally connected in the cylinder body, the turbofan is arranged on the transmission shaft, a gear is arranged on the transmission shaft, the side wall of the cylinder body is provided with a gear ring, the gear is meshed with the gear ring, and when the mixed liquid passes through the inner cavity of the cylinder body, the mixed liquid drives the turbofan to rotate.
Preferably, the water outlet of the cylinder body is communicated with a one-way valve, the one-way valve is communicated with a mixing bin, the mixing bin is communicated with the suction pump and the inner cavity of the cylinder body, the one-way valve is used for conducting the water outlet of the cylinder body to the mixing bin in a one-way mode, the mixing bin is used for mixing the mixed liquid from the cylinder body and the mixed liquid from the suction pump, and the mixed liquid is discharged into the inner cavity of the cylinder body.
Preferably, the conical filter screen is provided with a pressure detection mechanism, the pressure detection mechanism is used for detecting the pressure of the mixed liquid borne by the conical filter screen in real time, the pressure detection mechanism is electrically connected with a controller, the controller is electrically connected with the water diversion valve, the controller controls the water diversion valve to act according to the real-time pressure borne by the conical filter screen, and when the real-time pressure borne by the conical filter screen increases, the controller controls the water diversion valve to increase the flow of the mixed liquid distributed by the second water diversion port.
Preferably, the pressure detection mechanism comprises a slip ring and a pressure sensor, the slip ring is connected to the connecting shaft in a sliding manner along the axial direction of the connecting shaft, the side wall of the slip ring is connected with the tip end of the conical filter screen, the side wall of the slip ring is provided with a sliding groove along the axial direction of the connecting shaft, one end of each spoke, which is far away from the connecting shaft, is fixedly connected with the support, each spoke is connected to the sliding groove in a sliding manner towards one end of the connecting shaft, a spring is arranged outside the connecting shaft, one end of the spring is abutted against the slip ring, the other end of the spring is abutted against the pressure sensor, the pressure sensor is used for detecting the extrusion force born by the spring in real time, and when the extrusion force born by the spring is increased, the controller controls the water diversion valve to increase the flow of mixed liquid distributed by the second water diversion port.
Preferably, the axial direction of the first material through hole of the side wall of the cylinder body is perpendicular to the radial direction of the cylinder body.
Preferably, the support is detachably connected with the inner wall of the swivel.
The invention also provides a method for excavating construction by adopting the harbor building underwater excavation construction device, which comprises the following steps:
Crushing a soft soil layer, then performing jet impact on the crushed soft soil layer by utilizing high-speed water jet, and forming a mixed solution of sediment, gravel and water through the soft soil layer subjected to jet impact;
Sucking the mixed liquid into the inner cavity of the cylinder by using a suction pump, enabling the mixed liquid to move to one end of the water outlet in a spiral mode under the action of the spiral annular plate, and when the large-particle gravel moves to one end of the water outlet, enabling a part of the mixed liquid to wrap the large-particle gravel and throw the large-particle gravel out of the first material through holes, so that the large-particle gravel is discharged out of the inner cavity of the cylinder;
the large-particle gravel is discharged out of the whole excavation construction device through a discharge hole on the casing and then collected and treated intensively;
the rest part of the mixed liquid in the cylinder carries small-particle gravel, the small-particle gravel in the mixed liquid is filtered out under the filtration of the conical filter screen, and the filtered mixed liquid is discharged through the conveying pipe;
under the impact of the mixed liquid and the guiding action of the conical filter screen, small particle gravels filtered out of the conical filter screen are gathered at the large end of the conical filter screen, and then a small part of the mixed liquid is taken out of the casing from the second material through holes.
Compared with the prior art, the underwater excavation construction device for the harbor building has the beneficial effects that mixed liquid formed during excavation construction is sucked by utilizing the suction pump, the mixed liquid sucked into the inner cavity of the cylinder moves towards one end of the water outlet in a spiral mode under the action of the spiral annular plate, when large-particle gravel moves to one end of the water outlet, a part of mixed liquid is wrapped by the large-particle gravel and thrown out of the first through holes, so that the large-particle gravel is discharged out of the inner cavity of the cylinder, the large-particle gravel is discharged out of the whole excavation construction device through the discharge hole on the shell and is collected and treated in a concentrated mode, the rest part of mixed liquid in the cylinder carries the small-particle gravel under the filtering of the conical filter screen, the small-particle gravel in the mixed liquid is filtered out through the conveying pipe, the small-particle gravel filtered out of the conical filter screen is gathered at the large end of the conical filter screen under the guiding action of the impact of the mixed liquid and is then carried out of the shell from the second through holes, the produced mixed liquid is subjected to jet flow filtration of the mixed liquid leading to the impact part, the produced mixed liquid in the impact part is prevented from being blocked by the conveying pipe, and the mixed liquid in the conveying pipe with the large-particle gravel is prevented from being blocked, and the risk of the mixed liquid is prevented from being worn and filtered.
Through setting up actuating mechanism, actuating mechanism drive barrel and swivel rotate, when the second through-hole intercommunication of third feed port and the cover shell lateral wall on the swivel, gather the granule gravel of gathering at the toper filter screen main extreme and discharge the swivel, and when the third feed port did not communicate with the second feed port for more rivers can pass the toper filter screen, thereby under the prerequisite of guaranteeing the filtration performance of toper filter screen, prevent that too much mixed liquid from carrying gravel and discharging whole device and increasing the degree of difficulty of gravel follow-up treatment. The support supports the conical filter screen through a plurality of spokes to prevent that the conical filter screen from taking place to warp by a wide margin, thereby guarantee the guidance quality of conical filter screen structure, make the little granule gravel that the conical filter screen filtered out can be got rid of the conical filter screen by normal, thereby guarantee the filtration ability of conical filter screen, make the content of the gravel in the silt mixed liquor that lets go to in the conveyer pipe as low as possible.
Drawings
FIG. 1 is a schematic three-dimensional perspective view of the present invention;
FIG. 2 is a schematic diagram of a front view structure of the present invention;
FIG. 3 is a schematic top view of the present invention;
FIG. 4 is a schematic view of the internal structure of the present invention;
FIG. 5 is a schematic view of the structure of the A-A plane of FIG. 4 according to the present invention;
FIG. 6 is a schematic view of the structure of the B-B surface of FIG. 4 according to the present invention;
fig. 7 is a schematic structural view of the pressure detecting mechanism of the present invention.
Reference numerals illustrate:
101. casing, 102, suction pump, 103, discharge port, 104, barrel, 105, left cavity, 106, water outlet, 107, first through hole, 108, spiral ring plate, 109, right cavity, 110, baffle, 201, conical filter screen, 202, swivel, 203, third through hole, 204, second through hole, 301, bracket, 302, connecting shaft, 303, spoke, 401, cylinder, 402, transmission shaft, 403, turbofan, 404, shunt valve, 405, gear, 406, ring gear, 501, check valve, 502, mixing chamber, 6, pressure detection mechanism, 701, slip ring, 702, pressure sensor, 703, chute, 704, spring.
Detailed Description
Specific embodiments of the present invention will be described in detail below with reference to fig. 1-7, but it should be understood that the scope of the present invention is not limited by the specific embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in figures 1-7, the submarine construction underwater excavation construction device comprises a crushing mechanism, a casing 101, a jet impact part, a suction pump 102 and a conveying pipe, wherein the crushing mechanism is used for crushing a submarine soft soil layer, a discharge port 103 is formed in the side wall of the casing 101, the jet impact part is used for generating high-speed water jet, the suction pump 102 is used for sucking mixed liquid formed by impact soft soil, the submarine construction device further comprises the casing 101, a barrel 104, a spiral ring plate 108 and a conical filter screen 201, a partition plate 110 is arranged in the casing 101, an inner cavity of the casing is divided into a left cavity 105 and a right cavity 109 by the partition plate 110, the left cavity 105 is communicated with the conveying pipe, a water outlet 106 is formed in the partition plate 110, a discharge port 103 is formed in the side wall of the right cavity 109, one end of the barrel 104 is communicated with the pump 102, the other end of the barrel 104 is communicated with the left cavity 105 through the water outlet 106, a plurality of first through holes 107 are formed in the side wall of the barrel 104, which is close to one end of the water outlet 106, the spiral ring plate 108 is arranged in the inner cavity 108, the spiral ring plate 108 is arranged in the side wall of the spiral ring plate 108, the spiral ring plate 108 is used for guiding the mixed liquid into the conical filter screen 201, and is arranged in the conical filter screen 201 and is arranged in the side wall of the side wall 201, and is arranged in the conical filter screen 201, and is arranged in the side wall of the inner cavity 201, and is in the conical cavity 201, and is in the position towards the side of the inner cavity of the side of the filter screen 106, and is in the conical cavity, and is in the position of the side wall of the filter screen 201.
The working principle of the above embodiment will now be briefly described:
This excavation construction equipment installs and uses on the ship, when using, go deep into among the soft soil layer through crushing mechanism and carry out the breakage to soft soil layer, then open jet impact portion, jet impact portion forms high-speed water jet, utilize high-speed water jet to carry out jet impact to broken soft soil layer, soft soil layer through jet impact forms the mixed solution of silt, gravel and water, the mixed solution that suction pump 102 suction formed, after the mixed solution gets into the inner chamber of barrel 104, under the effect of spiral link plate 108, the high-speed mixed solution that gets into the inner chamber of barrel 104 is the heliciform and moves to the delivery port 106 one end of barrel 104, in this process, big granule gravel of mixed solution is because self quality is great, when its spiral motion is carried out under the effect of mixed solution, can hug closely with barrel 104 inner wall, barrel 104 inner wall exerts sufficient centripetal force to big granule gravel, when big granule gravel moves to barrel 104 is close to barrel 101 one end, because barrel 104 is close to delivery port 106 one end lateral wall and is equipped with a plurality of first feed through holes 107, consequently, a small portion of mixed solution is in the mixed solution and is wrapped up in big granule gravel and can be from a plurality of first feed through holes 107, thereby concentrate the gravel in big granule gravel from the inner chamber, the big granule gravel is discharged out from the inner chamber 103, the whole is concentrated on the construction equipment of the discharge device of the big granule on the barrel 104 is discharged through the casing hole 101. Most of the mixed liquid in the barrel 104 carries a large amount of small-particle gravels into the left cavity 105 through the water outlet 106 and then rushes to the conical filter screen 201, and as the tip of the conical filter screen 201 faces the water outlet 106 of the barrel 104, the silt mixed liquid with the gravels filtered by the conical filter screen 201 passes through the conical filter screen 201 and then is led to a conveying pipe. Under the impact of the mixed solution and the guiding action of the conical filter screen 201, small-particle gravel filtered out of the conical filter screen 201 gathers at the large end of the conical filter screen 201, and then a small part of mixed solution is brought out of the casing 101 from the second through holes 204, so that the filtering and the removing of the mixed solution are realized, and meanwhile, the influence of the gravel in the filter on the filtering performance of the filter is prevented.
According to the underwater excavation construction device for the harbor building, when the sludge at the bottom of the harbor or the river channel is excavated, the produced mixed liquid which is led to the conveying pipe can be filtered, so that gravels with larger granularity in the mixed liquid can be filtered, the gravels in the mixed liquid can be prevented from impacting and wearing the conveying pipe when the conveying pipe conveys the mixed liquid, and the risk of blockage of the conveying pipe is reduced.
On the basis of the above embodiment, in order to prevent excessive mixed liquid from carrying gravel out of the whole device and increasing difficulty in subsequent treatment of the gravel under the premise of ensuring the filtering performance of the conical filter screen 201.
As shown in fig. 4, fig. 5 and fig. 7, the barrel 104 is rotatably connected in the right cavity 109 of the casing 101, a driving mechanism is connected to the casing 101, a rotating ring 202 is connected to the outside of the conical filter 201, the rotating ring 202 is connected to one end of the barrel 104 near the water outlet 106, the outer wall of the rotating ring 202 is attached to the inner wall of the casing 101, one end of an annular hole of the rotating ring 202 is communicated with the water outlet 106 of the barrel 104, a third material through hole 203 is formed in the side wall of the rotating ring 202, and the barrel 104 drives the rotating ring 202 to rotate under the driving of the driving mechanism, so that the third material through hole 203 is intermittently communicated with the second material through hole 204.
The driving mechanism drives the barrel 104 to rotate around the axis of the barrel 104, when the barrel 104 rotates, the rotating ring 202 connected with the barrel is driven to rotate, the rotating ring 202 drives the conical filter screen 201 to rotate, the conical filter screen 201 rotates, centrifugal action is generated on filtered small particle gravel, the impact of mixed liquid and the guiding action of the conical filter screen 201 are combined, the thrust of the small particle gravel filtered out on the conical filter screen 201 to the large end of the conical filter screen 201 can be improved, the small particle gravel is further prevented from being attached to the conical filter screen 201, when the rotating ring 202 rotates to the condition that a third material through hole 203 on the rotating ring is communicated with a second material through hole 204 on the side wall of the casing 101, the small particle gravel accumulated on the large end of the conical filter screen 201 is discharged through the third material through hole 203 and the second material through hole 204, and when the third material through hole 203 is not communicated with the second material through hole 204, more mixed liquid can pass through the conical filter screen 201, and accordingly the difficulty of preventing the excessive mixed liquid from carrying gravel to discharge the whole filter screen to be increased on the premise of guaranteeing the filtering performance of the conical filter screen 201.
As a preferable solution, as shown in fig. 4, fig. 5 and fig. 7, a support 301 is connected in the annular hole of the swivel 202, a connecting shaft 302 is disposed in the middle of the support 301, the connecting shaft 302 is coaxially disposed with the conical filter 201, a plurality of spokes 303 are disposed on the support 301, each spoke 303 is disposed along a bus direction of the conical filter 201, each spoke 303 abuts against a side surface of the conical filter 201, far away from the water outlet 106 of the barrel 104, one end of each spoke 303 is connected with the support 301, and the other end of each spoke 303 is connected with the connecting shaft 302. Through setting up support 301, from the last delivery port 106 of barrel 104 spun mixed liquor impact toper filter screen 201, toper filter screen 201 has the trend of deformation under the impact of high-speed mixed liquor, at this moment, support 301 supports toper filter screen 201 through a plurality of spokes 303 to prevent that toper filter screen 201 from taking place to warp by a wide margin, thereby guarantee the direction of toper filter screen 201 structure, make the tiny particle gravel that toper filter screen 201 filtered out can be got rid of toper filter screen 201 by normal, thereby guarantee the filtration ability of toper filter screen 201, make the content of gravel in the silt mixed liquor that leads to in the conveyer pipe as low as possible.
As a preferable scheme, as shown in fig. 1,2, 4 and 6, the driving mechanism includes a transmission shaft 402 and a turbofan 403, one end of the swivel 202 far away from the cylinder 104 is communicated with a water diversion valve 404, the water diversion valve 404 is used for diverting the mixed liquid in the annular hole, the conveying pipe is communicated with a first water diversion port of the water diversion valve 404, a second water diversion port of the water diversion valve 404 is communicated with a cylinder 401, a water outlet is arranged on the cylinder 401, the transmission shaft 402 is rotationally connected in the cylinder 401, the turbofan 403 is arranged on the transmission shaft 402, a gear 405 is arranged on the transmission shaft 402, a gear ring 406 is arranged on the side wall of the cylinder 104, the gear 405 is meshed with the gear ring 406, and when the mixed liquid passes through an inner cavity of the cylinder 401, the mixed liquid drives the turbofan 403 to rotate. The filtered and sediment mixed solution discharged from the swivel 202 enters the water diversion valve 404, the mixed solution at this time almost does not contain gravel with larger granularity, most of the mixed solution is discharged after being conveyed by the conveying pipe through the water diversion valve 404, and the small part of the mixed solution enters the cylinder 401 and is discharged from the water outlet of the cylinder 401, in the process, the mixed solution drives the turbofan 403 to rotate so as to drive the transmission shaft 402 to rotate, the transmission shaft 402 drives the gear 405 to rotate so as to drive the toothed ring 406 meshed with the gear to rotate, and the toothed ring 406 drives the cylinder 104 to rotate (in actual use, by changing the power of the suction pump 102 and controlling the action of the water diversion valve 404, the flow rate and the flow velocity of the mixed solution entering the cylinder 401 can be changed, so that the rotating power of the turbofan 403 is changed until the power of the turbofan 403 reaches to drive the transmission shaft 402 to rotate so as to drive the cylinder 104 to rotate). The power driving barrel 104 of the filtered mixed liquid is utilized to rotate, so that the use of additional electric components can be avoided, the use cost of the excavation construction device can be reduced, and the electric components can be prevented from frequently malfunctioning in the working environment of high humidity and water immersion when the additional electric components are used, thereby further improving the reliability of the whole excavation construction device.
As a preferable solution, as shown in fig. 1-4, the water outlet of the cylinder 401 is communicated with a one-way valve 501, the one-way valve 501 is communicated with a mixing bin 502, the mixing bin 502 is communicated with the suction pump 102 and the inner cavity of the cylinder 104, the one-way valve 501 is used for conducting one-way from the water outlet of the cylinder 401 to the mixing bin 502, and the mixing bin 502 is used for mixing the mixed liquid from the cylinder 401 and the mixed liquid from the suction pump 102 and discharging the mixed liquid into the inner cavity of the cylinder 104. Through setting up check valve 501, the mixed liquor that discharges from the outlet of cylinder body 401 gets into in mixing bin 502, mix with the mixed liquor that suction pump 102 took in containing a large amount of gravels in mixing bin 502, can make the mixed liquor that gets into the barrel 104 inner chamber in the gravel distribution discretization as far as possible, thereby under the direction effect of spiral link plate 108, can make the gravel in the mixed liquor follow barrel 104 inner wall as far as possible and move to delivery port 106 one end, thereby guarantee that the big granule gravel can discharge barrel 104 from first feed-through hole 107 as far as possible, increase the throughput of whole device to big granule gravel.
As a preferable solution, as shown in fig. 4,5 and 7, the conical filter 201 is provided with a pressure detecting mechanism 6, the pressure detecting mechanism 6 is used for detecting the pressure of the mixed liquid received by the conical filter 201 in real time, the pressure detecting mechanism 6 is electrically connected with a controller, the controller is electrically connected with the water dividing valve 404, the controller controls the water dividing valve 404 to act according to the real-time pressure received by the conical filter 201, and when the real-time pressure received by the conical filter 201 increases, the controller controls the water dividing valve 404 to increase the flow of the mixed liquid distributed by the second water dividing port. By arranging the pressure detection mechanism 6, when the conical filter screen 201 filters the mixed liquid led to the conveying pipe, the pressure detection mechanism 6 detects the pressure of the mixed liquid borne by the conical filter screen 201 in real time, because the power of the suction pump 102 is relatively constant, when the real-time pressure borne by the conical filter screen 201 increases, the situation that the gravels accumulated on the conical filter screen 201 are excessive is indicated, at the moment, the controller controls the water diversion valve 404 to increase the flow rate of the mixed liquid distributed by the second water diversion port, thereby increasing the flow rate of the mixed liquid led into the cylinder 401, thereby increasing the rotation speed and the power of the turbofan 403, thereby increasing the rotation speed of the conical filter screen 201, exerting a larger centrifugal force on the gravels accumulated on the conical filter screen 201, thereby improving the removal effect of the gravels accumulated on the conical filter screen 201, ensuring the filtering performance of the conical filter screen 201, and at the same time, increasing the filtered mixed liquid entering the mixing bin 502, reducing the gravels content of the mixed liquid led into the cylinder 104, thereby reducing the filtering burden of the conical filter screen 201, and further ensuring the filtering performance of the conical filter screen 201.
As a preferable solution, as shown in fig. 4, 5 and 7, the pressure detecting mechanism 6 includes a slip ring 701 and a pressure sensor 702, the slip ring 701 is slidably connected to the connecting shaft 302 along the axial direction of the connecting shaft 302, the side wall of the slip ring 701 is connected to the tip of the conical filter 201, a chute 703 along the axial direction of the connecting shaft 302 is provided on the side wall of the slip ring 701, one end of each spoke 303, far away from the connecting shaft 302, is fixedly connected to the bracket 301, one end of each spoke 303, facing the connecting shaft 302, is slidably connected to the chute 703, a spring 704 is provided outside the connecting shaft 302, one end of the spring 704 is abutted to the slip ring 701, the other end of the spring 704 is abutted to the pressure sensor 702, and the pressure sensor 702 is used for detecting the extrusion force applied to the spring 704 in real time. When the gravel accumulated on the conical filter screen 201 is too much, the pressure of the mixed liquid is increased on the conical filter screen 201, the deformation amplitude of the conical filter screen 201 is increased, the conical filter screen 201 applies a thrust force to the slip ring 701 at one end far away from the water outlet 106 of the cylinder 104, because one end of each spoke 303, which faces the connecting shaft 302, is slidably connected in the sliding groove 703 on the side wall of the slip ring 701, each spoke 303 is similar to a cantilever beam, when the conical filter screen 201 is deformed, the spokes 303 are also bent and deformed, the conical filter screen 201 pushes the slip ring 701 to slide on the connecting shaft 302, so that the spring 704 on the connecting shaft 302 is extruded, the pressure applied by the spring 704 is increased, and the controller controls the water diversion valve 404 to increase the flow rate of the mixed liquid distributed by the second water diversion valve 404, so that the accurate regulation of the action of the water diversion valve 404 is achieved, and the filtering performance of the conical filter screen 201 is ensured.
As a preferred solution, as shown in fig. 6, the axial direction of the first through hole 107 on the side wall of the barrel 104 is perpendicular to the radial direction of the barrel 104. The axial direction of the first material through hole 107 on the side wall of the cylinder 104 is perpendicular to the radial direction of the cylinder 104, so that the large-particle gravel in the cylinder 104 can be thrown out of the cylinder 104 more easily.
As a preferred embodiment, as shown in fig. 4, the support 301 is detachably connected to the inner wall of the swivel 202. The support 301 is detachably connected with the swivel 202, so that the conical filter screen 201 can be conveniently installed and detached, and the maintenance of the excavating construction device is convenient.
The invention also provides a method for excavating construction by adopting the harbor building underwater excavation construction device, which comprises the following steps:
Crushing a soft soil layer, then performing jet impact on the crushed soft soil layer by utilizing high-speed water jet, and forming a mixed solution of sediment, gravel and water through the soft soil layer subjected to jet impact;
Sucking the mixed liquid into the inner cavity of the cylinder 104 by using a suction pump 102, enabling the mixed liquid to move to one end of the water outlet 106 in a spiral manner under the action of a spiral annular plate 108, and when the large-particle gravel moves to one end of the water outlet 106, a part of the mixed liquid is wrapped by the large-particle gravel and is thrown out from the first material through holes 107, so that the large-particle gravel is discharged out of the inner cavity of the cylinder 104;
the large-particle gravel is discharged out of the whole excavation construction device through a discharge hole 103 on the casing 101 and then collected and treated intensively;
The rest part of the mixed liquid in the cylinder 104 carries small-particle gravel, the small-particle gravel in the mixed liquid is filtered out under the filtration of the conical filter screen 201, and the filtered mixed liquid is discharged through a conveying pipe;
Under the impact of the mixed liquor and the guiding action of the conical filter screen 201, small particle gravel filtered out of the conical filter screen 201 gathers at the large end of the conical filter screen 201 and is then carried out of the casing 101 by a small part of the mixed liquor from the second through-holes 204.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made hereto without departing from the spirit and principles of the present invention.
Claims (10)
1. The utility model provides a harbor building excavation construction equipment under water, includes suction pump (102) and conveyer pipe, its characterized in that still includes:
The novel plastic box comprises a box body (101), wherein a partition plate (110) is arranged in the box body, the inner cavity of the box body is divided into a left cavity (105) and a right cavity (109) by the partition plate (110), the left cavity (105) is communicated with the conveying pipe, a water outlet (106) is formed in the partition plate (110), and a discharge opening (103) is formed in the side wall of the right cavity (109);
the cylinder body (104) is arranged in the right cavity (109), one end of the cylinder body (104) is communicated with the suction pump (102), the other end of the cylinder body (104) is communicated with the left cavity (105) through a water outlet (106), and a plurality of first material through holes (107) are formed in the side wall, close to the water outlet (106), of one end of the cylinder body (104);
The spiral ring plate (108) is arranged in the inner cavity of the cylinder body (104), the spiral ring plate (108) is used for guiding the mixed liquid entering the inner cavity of the cylinder body (104), and under the guiding action of the spiral ring plate (108), the mixed liquid in the inner cavity of the cylinder body (104) moves towards one end of the water outlet (106) in a spiral shape;
The conical filter screen (201) is arranged in the left cavity (105), the tip of the conical filter screen (201) faces the water outlet (106), and a plurality of second through holes (204) are formed in the edge of the conical filter screen (201) on the side wall of the casing (101).
2. The submarine excavation construction device for the harbor building according to claim 1, wherein the barrel (104) is rotatably connected in a right cavity (109) of the casing (101), a driving mechanism is connected to the casing (101), a rotary ring (202) is externally connected to the conical filter screen (201), the rotary ring (202) is connected to the barrel (104) and is close to one end of the water outlet (106), the outer wall of the rotary ring (202) is attached to the inner wall of the casing (101), one end of an annular hole of the rotary ring (202) is communicated with the water outlet (106) of the barrel (104), a third material through hole (203) is formed in the side wall of the rotary ring (202), and the barrel (104) drives the rotary ring (202) to rotate under the driving of the driving mechanism, so that the third material through hole (203) is intermittently communicated with the second material through hole (204).
3. The submarine excavation construction device for the harbor building according to claim 2, wherein a support (301) is connected in an annular hole of the swivel (202), a connecting shaft (302) is arranged in the middle of the support (301), the connecting shaft (302) and the conical filter screen (201) are coaxially arranged, a plurality of spokes (303) are arranged on the support (301), each spoke (303) is arranged along the bus direction of the conical filter screen (201), each spoke (303) is abutted to one side face of the conical filter screen (201) away from the water outlet (106) of the barrel (104), one end of each spoke (303) is connected with the support (301), and the other end of each spoke (303) is connected with the connecting shaft (302).
4. The submarine excavation construction device for the harbour building according to claim 2, wherein the driving mechanism comprises a transmission shaft (402) and a turbofan (403), one end of the swivel (202) away from the cylinder (104) is communicated with a water diversion valve (404), the water diversion valve (404) is used for diversion of mixed liquid in the annular hole, the conveying pipe is communicated with a first water diversion port of the water diversion valve (404), a second water diversion port of the water diversion valve (404) is communicated with a cylinder body (401), a water outlet is formed in the cylinder body (401), the transmission shaft (402) is rotatably connected in the cylinder body (401), the turbofan (403) is arranged on the transmission shaft (402), a gear (405) is arranged on the transmission shaft (402), a gear ring (406) is arranged on the side wall of the cylinder (104), the gear (405) is meshed with the gear ring gear (406), and the mixed liquid drives the turbofan (403) to rotate when the mixed liquid passes through an inner cavity of the cylinder body (401).
5. The submarine excavation construction device according to claim 4, wherein the water outlet of the cylinder body (401) is communicated with a one-way valve (501), the one-way valve (501) is communicated with a mixing bin (502), the mixing bin (502) is communicated with the suction pump (102) and the inner cavity of the cylinder body (104), the one-way valve (501) is used for conducting in one direction from the water outlet of the cylinder body (401) to the mixing bin (502), and the mixing bin (502) is used for mixing mixed liquid from the cylinder body (401) and mixed liquid from the suction pump (102) and discharging the mixed liquid into the inner cavity of the cylinder body (104).
6. The submarine excavation construction device according to claim 4, wherein the conical filter screen (201) is provided with a pressure detection mechanism (6), the pressure detection mechanism (6) is used for detecting the pressure of mixed liquid borne by the conical filter screen (201) in real time, the pressure detection mechanism (6) is electrically connected with a controller, the controller is electrically connected with the water diversion valve (404), the controller controls the water diversion valve (404) to act according to the real-time pressure borne by the conical filter screen (201), and when the real-time pressure borne by the conical filter screen (201) increases, the controller controls the water diversion valve (404) to increase the flow of the mixed liquid distributed by the second water diversion port.
7. The submarine excavation construction device according to claim 6, wherein the pressure detection mechanism (6) comprises a slip ring (701) and a pressure sensor (702), the slip ring (701) is connected to the connecting shaft (302) in a sliding manner along the axial direction of the connecting shaft (302), the side wall of the slip ring (701) is connected with the tip of the conical filter screen (201), a sliding groove (703) along the axial direction of the connecting shaft (302) is formed in the side wall of the slip ring (701), one end, far away from the connecting shaft (302), of each spoke (303) is fixedly connected with the support (301), one end, facing the connecting shaft (302), of each spoke (303) is connected in the sliding groove (703) in a sliding manner, a spring (704) is arranged outside the connecting shaft (302), one end of the spring (704) is abutted to the slip ring (701), the other end of the spring (702) is abutted to the pressure sensor (702), the pressure sensor (702) is used for detecting the fact that the spring (704) is stressed in real time, and when the extrusion force exerted by the spring (704) is increased, the controller controls the water diversion valve (404) to increase the distribution flow of the mixed liquid.
8. The harbor construction underwater excavation construction apparatus according to claim 1, wherein an axial direction of the first feed-through hole (107) of the side wall of the cylinder (104) is perpendicular to a radial direction of the cylinder (104).
9. A harbor construction underwater excavation construction apparatus as claimed in claim 3, wherein the bracket (301) is detachably connected to an inner wall of the swivel (202).
10. A method for excavation construction using the harbor construction underwater excavation construction apparatus as claimed in claim 1, comprising the steps of:
Crushing a soft soil layer, then performing jet impact on the crushed soft soil layer by utilizing high-speed water jet, and forming a mixed solution of sediment, gravel and water through the soft soil layer subjected to jet impact;
Sucking the mixed liquid into the inner cavity of the cylinder (104) by using a suction pump (102), enabling the mixed liquid to move spirally towards one end of the water outlet (106) under the action of a spiral annular plate (108), and when the large-particle gravel moves to one end of the water outlet (106), enabling a part of the mixed liquid to wrap the large-particle gravel and throw out the large-particle gravel from the first material through holes (107), so that the large-particle gravel is discharged out of the inner cavity of the cylinder (104);
The large-particle gravel is discharged out of the whole excavation construction device through a discharge hole (103) on the casing (101) and then is collected and treated intensively;
The rest part of the mixed liquid in the cylinder (104) carries small-particle gravel, the small-particle gravel in the mixed liquid is filtered out under the filtration of the conical filter screen (201), and the filtered mixed liquid is discharged through a conveying pipe;
Under the impact of the mixed liquid and the guiding action of the conical filter screen (201), small particle gravels filtered out of the conical filter screen (201) are gathered at the large end of the conical filter screen (201), and then a small part of mixed liquid is carried out of the casing (101) from the second through hole (204).
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| CN202510629005.9A CN120139312B (en) | 2025-05-16 | 2025-05-16 | Underwater excavation construction device and method for harbor construction |
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| CN119466073A (en) * | 2024-12-05 | 2025-02-18 | 安徽水利水电职业技术学院 | A water conservancy project dredging equipment |
| CN119877620A (en) * | 2025-02-11 | 2025-04-25 | 合肥左心科技有限公司 | A desilting equipment for hydraulic engineering |
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| JP2000093895A (en) * | 1998-09-22 | 2000-04-04 | Fukazawa Kenzai:Kk | Separation treatment method and apparatus for excavated soil and sludge by soil type |
| JP2006214263A (en) * | 2005-01-07 | 2006-08-17 | Taisei Corp | Dredger |
| CN206090672U (en) * | 2016-04-21 | 2017-04-12 | 南方科技大学 | River silt dredging device |
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| CN120139312B (en) | 2025-07-18 |
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