CN209836963U - Antifouling screen - Google Patents
Antifouling screen Download PDFInfo
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- CN209836963U CN209836963U CN201920318950.7U CN201920318950U CN209836963U CN 209836963 U CN209836963 U CN 209836963U CN 201920318950 U CN201920318950 U CN 201920318950U CN 209836963 U CN209836963 U CN 209836963U
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- filtering
- screen
- curtain
- foam
- antifouling
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Abstract
The utility model discloses an antifouling screen, including filtering curtain, steel cable, foam body, hasp connector, stress cable rope and ground tackle, the edge all is equipped with the steel cable all around of filtering the curtain, and the relative both ends of steel cable are located respectively to two hasp connectors, are equipped with a plurality of foam bodies between two hasp connectors, and foam body is connected with the steel cable at top, and ground tackle locates between two foam bodies at middle part, at least one the stress cable rope locates the impacted surface and the horizontal setting that receive of filtering the curtain, and the both sides of filtering the curtain are equipped with a plurality of rotation connectors respectively, rotate two loose-leaf bodies that the connector includes loose bearing and is connected to loose bearing's both ends for connect two adjacent antifouling screens. The utility model discloses an adopt flexible connection's rotation connector to connect two adjacent antifouling screens, can weaken the shearing force that the junction received between two antifouling screens, improve the reliable degree that antifouling screen connects.
Description
Technical Field
The utility model belongs to the technical field of the river pollution treatment, in particular to antifouling screen.
Background
The river pollution sediment is a key reason for causing black and odorous water, so that the sediment dredging is needed to remove the pollution sediment in a large number of rivers at present.
At present, many dredging projects adopt underwater dredging methods, such as construction with water by using a dredging boat. In order to prevent the silt and suspended sediment in the construction section from diffusing in a large area and influencing the water quality of the surrounding water body during dredging, a relatively closed construction environment window is usually established, and the arrangement of a antifouling screen is an effective means widely adopted at present.
The connection of the antifouling screen of current application all adopts rigid connection, and the connection between two antifouling screens adopts the hasp to link, and the junction can receive great shearing force in the river of higher velocity of flow, causes the connection to damage easily, is difficult for keeping the wholeness between the polylith antifouling screen, consequently is used for ocean to enclose sea to make land engineering more, and the water body velocity of flow of adaptation is little, is not suitable for the higher river desilting engineering of velocity of flow.
In addition, during dredging construction, the sediment deposited at the bottom can be suspended, the sediment suspension is a result of superposition of dual effects of water flow turbulence diffusion and particle gravity, the suspension is that the water flow turbulence diffusion occupies a dominant position, the particle sinking is that the gravity action occupies a dominant position, the sediment particle size plays an absolute dominant role in sediment suspension, the fine particle sediment is positioned at the upper part of the water flow, and the coarse particle is positioned at the lower part of the water flow and is close to the side wall of the bottom.
At present, the main functional parts of the antifouling screen are made of impermeable materials, and the configuration mode causes the two sides of the antifouling screen to bear larger pressure difference. The anti-fouling curtain sags a certain height in the water body, and the particle size and concentration of the silt are distributed differently at different water depths, so that pressure difference exists at two sides of the anti-fouling curtain.
SUMMERY OF THE UTILITY MODEL
To the technical problem who exists among the prior art, the utility model provides an antifouling screen for when the diffusion of the suspended solid that produces and silt among the control water desilting dredging and the sediment processing, improve the shock resistance of antifouling screen, and reduce the pressure differential that antifouling screen both sides received.
In order to solve the technical problem, the utility model discloses a technical scheme is:
the utility model provides an antifouling screen, includes filtering curtain, steel cable, foam body, hasp connector, stress hawser and ground tackle, the edge all is equipped with the steel cable all around of filtering curtain, two the relative both ends of steel cable are located respectively to the hasp connector, two be equipped with a plurality of foam bodies between the hasp connector, the foam body is connected with the steel cable at top, ground tackle is located between two foam bodies at middle part, its characterized in that, at least one the stress hawser is located and is filtered the face of being strikeed and horizontal setting of curtain, the both sides of filtering the curtain are equipped with a plurality of rotation connectors respectively, it includes two loose-leaf bodies at loose bearing and the both ends that are connected to the loose bearing to rotate the connector for connect two adjacent antifouling screens.
Preferably, the middle part of the filtering curtain is made of monofilament fabric with filtering holes, and the filtering holes are the same in aperture and are uniformly arranged on the filtering curtain.
Preferably, the stress cables are arranged in two from top to bottom.
Preferably, the middle part of the filtering curtain is made of monofilament fabric with filtering holes, and the filtering holes are variable diameter holes so as to reduce the pressure difference on the two sides of the curtain body.
Preferably, the pore diameter of the filtering pores changes in a gradient manner, and the pore diameter increases from top to bottom in the longitudinal direction of the curtain body of the filtering curtain.
Preferably, the curtain body of the filtering curtain is longitudinally divided into a plurality of areas, the filtering holes in each area have the same and uniform pore size, and the filtering holes at the bottom of the curtain body of the filtering curtain have the largest pore size.
Preferably, the foam floating body and the filtering curtain are both wrapped in the plastic cloth, and the foam floating body is higher than the horizontal plane by a certain height.
Preferably, the material of the foam floating body is polyvinyl chloride foam.
Compared with the prior art, the utility model discloses the beneficial effect who has is: the utility model discloses an adopt flexible connection's rotation connector to connect two adjacent antifouling screens, can weaken the shearing force that the junction received between two antifouling screens, improve the reliable degree that antifouling screen connects.
Drawings
Fig. 1 is a schematic front view of an anti-fouling screen according to the present invention;
fig. 2 is a schematic side view of an anti-fouling screen according to the present invention;
FIG. 3 is a schematic view of a rotary connector for an anti-smudge screen according to the present invention;
fig. 4 is a schematic diagram of a filter curtain of an anti-fouling screen according to the present invention, which adopts gradient change;
fig. 5 is a schematic diagram of a filtering curtain of an anti-fouling screen of the present invention adopting a uniform region.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 3, the embodiment of the utility model discloses an antifouling screen, including filtering curtain 6, steel cable 4, foam body 2, hasp connector 3, stress cable 7 and ground tackle 9, filtering curtain 6 all is equipped with steel cable 4 all around, two relative both ends of steel cable 4 are located respectively to hasp connector 3, be equipped with a plurality of foam body 2 between two hasp connectors 3, foam body 2 is connected with the steel cable 4 at top, ground tackle 9 is located between two foam body 2 at middle part, at least one stress cable 7 is located receiving the impact surface and transversely setting of filtering curtain 6, filtering curtain 6's both sides are equipped with a plurality of rotation connectors 5 respectively, rotation connectors 5 include loose bearing 51 and are connected to two loose-leaf bodies 52 at loose bearing 51 both ends respectively, be used for connecting two adjacent antifouling screens.
The rotary connector 5 can rotate by depending on the middle shaft, belongs to flexible connection, and rotates when the joint is subjected to larger shearing force, so that the shearing force applied to the joint between the two antifouling screens is weakened, and the reliability of connection of the antifouling screens is improved.
The material of foam body 2 is the polyvinyl chloride foam, and foam body 2 and filter curtain 6 all wrap in plastic cloth 1, and foam body 2 floats on the surface of water, provides buoyancy for whole device, and foam body 2 exceeds the surface of water take the altitude in order to prevent that rivers from turning over.
Hasp connector 3 is rigid connection spare, and foam body 2 receives the influence of water velocity at the surface of water, can produce the removal, adopts rigid connection can increase the stability that foam body 2 connects between the different antifouling screens.
The anchorage device 9 is connected with the foam floating body 2, one antifouling screen is connected with one anchorage device 9, and the connecting position is located at the middle point of the transverse length of the antifouling screen.
The stress cable 7 is arranged on the stress surface of the filtering curtain 6, the specific placement depth can be adjusted according to the flow rate and the water depth of a river in actual use, and the stress cable is arranged at the depth with the maximum stress of the filtering curtain 6 and used for bearing filtering. The shock resistance of the filtering curtain is ensured. The stress cables 7 are arranged in two from top to bottom.
The middle part of the filtering curtain 6 is made of monofilament fabric with filtering holes, and the filtering holes are the same in aperture and are uniformly arranged on the filtering curtain 6. The steel cables 4 are arranged around the filtering curtain 6, and the steel cables 4 at the top are positioned between the foam floating body 2 and the filtering curtain 6 and used for fixing the position of the foam floating body 2 and preventing the foam floating body 2 from moving under the influence of water flow; the steel cables 4 on the left side and the right side are used for increasing the rigidity of the filtering curtain 6 and helping the filtering curtain 6 to keep a vertical structure in a water body; the bottom steel cable 4 serves as a heavy chain 8. The heavy chain 8 and the anchorage device 9 can fix the antifouling screen, so that the antifouling screen is kept in a vertical state, and the antifouling screen is ensured to continuously play a role in filtering.
The utility model provides an anti-fouling screen is vertically flexible construction, and foam body 2 floats on the surface of water, and filter curtain 6 extends to the appointed depth of water under the surface of water from the surface of water, and filter curtain 6 is made by flexible polyester reinforcing thermoplastic plastics (ethylene) fabric usually, and is permeable, and filter curtain 6 keeps the vertical position through the foam body 2 at top and the heavy chain 8 of joining in marriage that sets up in the bottom.
The antifouling screens in the utility model adopt a flexible connection mode, and a rotatable connector is used at the joint, so as to reduce the influence caused by the larger shearing force generated at the joint due to the uneven stress of the two antifouling screens and increase the reliability of the connecting piece; in order to increase the shock resistance of the antifouling screen, the stress cable is arranged on the stress surface of the antifouling screen, so that the antifouling screen can bear certain load applied by water flow impact.
The utility model discloses a when preventing the diffusion of silt pollutant, can also reduce the pressure differential of antifouling screen both sides as far as possible, filter a plurality of filtration pores of curtain 6 and be the reducing hole for when the diffusion of the suspended solid that produces and silt in the control water desilting dredging and dredging sediment processing, reduce the pressure differential that antifouling curtain both sides received. The antifouling filtering curtain with non-uniform pore diameters is adopted because the main distribution positions of the silt with different particle sizes in the water body are different under the interaction of the turbulent action force of the water flow and the gravity, the fine particle silt is positioned at the upper part of the water flow, and the coarse particle silt is positioned at the lower part of the water flow.
The aperture distribution of the filtering holes of the filtering curtain 6 can adopt different division modes, can be determined according to the sediment particle size distribution condition of an actual construction object, can adopt a mode that the filtering aperture is gradually reduced from the lower part to the upper part of a water body, the aperture of the filtering holes is in gradient change, and the aperture is gradually increased from top to bottom in the longitudinal direction of the curtain body of the filtering curtain; the filter apertures can also be uniformly distributed in a partition manner, namely the filter curtain is divided into a plurality of regions, the curtain body of the filter curtain is longitudinally divided into a plurality of regions, the apertures of the filter apertures in each region are the same and are uniformly distributed, and the apertures of the filter apertures at the bottom of the curtain body of the filter curtain are the largest.
The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the protection scope of the present invention is defined by the claims. Various modifications and equivalents of the invention can be made by those skilled in the art within the spirit and scope of the invention, and such modifications and equivalents should also be considered as falling within the scope of the invention.
Claims (8)
1. The utility model provides an antifouling screen, includes filtering curtain, steel cable, foam body, hasp connector, stress hawser and ground tackle, the edge all is equipped with the steel cable all around of filtering curtain, two the relative both ends of steel cable are located respectively to the hasp connector, two be equipped with a plurality of foam bodies between the hasp connector, the foam body is connected with the steel cable at top, ground tackle locates between two foam bodies at middle part, its characterized in that, at least one the stress hawser is located and is filtered the face of being strikeed and horizontal setting of curtain, the both sides of filtering the curtain are equipped with a plurality of rotation connectors respectively, it includes loose bearing and two loose leaf bodies that are connected to loose bearing's both ends to rotate the connector for connect two adjacent antifouling screens.
2. The anti-fouling screen of claim 1, wherein the middle of the filtering screen is made of monofilament fabric with filtering holes, and the filtering holes have the same diameter and are uniformly arranged on the filtering screen.
3. An anti-fouling screen according to claim 2, wherein the stress cables are arranged in two from top to bottom.
4. The anti-fouling screen of claim 1, wherein the middle of the filtering screen is a monofilament fabric with filtering holes, and the filtering holes are variable diameter holes to reduce the pressure difference between the two sides of the screen body.
5. A screen according to claim 4, wherein the filter holes have a gradient of pore sizes which increase from top to bottom in the longitudinal direction of the screen.
6. The screen of claim 4, wherein the screen body of the filtering curtain is divided into a plurality of regions in the longitudinal direction, the filtering holes in each region have the same and uniformly distributed pore size, and the filtering holes at the bottom of the screen body of the filtering curtain have the largest pore size.
7. The anti-fouling screen of claim 1, wherein the foam float and the filter screen are wrapped in a plastic cloth, and the foam float is higher than the horizontal plane by a certain height.
8. The anti-fouling screen of claim 1, wherein the material of the foam floating body is polyvinyl chloride foam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920318950.7U CN209836963U (en) | 2019-03-13 | 2019-03-13 | Antifouling screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920318950.7U CN209836963U (en) | 2019-03-13 | 2019-03-13 | Antifouling screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209836963U true CN209836963U (en) | 2019-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920318950.7U Active CN209836963U (en) | 2019-03-13 | 2019-03-13 | Antifouling screen |
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| Country | Link |
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| CN (1) | CN209836963U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112726533A (en) * | 2020-12-24 | 2021-04-30 | 中国水电基础局有限公司 | Antifouling screen construction method for plain river channel environment-friendly dredging engineering |
| CN116623625A (en) * | 2023-07-11 | 2023-08-22 | 中交第四航务工程局有限公司 | Antifouling structure for DCM pile ship construction and use method thereof |
-
2019
- 2019-03-13 CN CN201920318950.7U patent/CN209836963U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112726533A (en) * | 2020-12-24 | 2021-04-30 | 中国水电基础局有限公司 | Antifouling screen construction method for plain river channel environment-friendly dredging engineering |
| CN116623625A (en) * | 2023-07-11 | 2023-08-22 | 中交第四航务工程局有限公司 | Antifouling structure for DCM pile ship construction and use method thereof |
| CN116623625B (en) * | 2023-07-11 | 2024-07-02 | 中交第四航务工程局有限公司 | Antifouling structure for DCM pile ship construction and use method thereof |
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