CN114134868A - Layered combined antifouling screen - Google Patents

Abstract

The invention discloses a layered combined antifouling screen, which comprises: positioning the pile; the antifouling assembly is connected with the positioning pile, at least two antifouling areas are arranged on the antifouling assembly from top to bottom, and each antifouling area is provided with a filter hole; wherein, in every two adjacent antifouling areas, the aperture of the filter hole of the higher antifouling area is larger than that of the filter hole of the lower antifouling area. Foretell combined antifouling screen of layering can improve the stability of antifouling screen structure, avoids in the use because the influence of weather, rivers velocity of flow and pollutant discharge source impact, leads to the antifouling screen to take place the phenomenon of damage, deformation and displacement to with the antifouling effect of improvement antifouling screen.

Description

Layered combined antifouling screen

Technical Field

The invention relates to the field of river channel dredging antifouling, in particular to a layered combined antifouling screen.

Background

The environment-friendly dredging is the most practical method for eliminating the pollution of lake water systems, the release of sediment pollutants to the water body is reduced by dredging and removing the internal sources of the polluted water body through sediment, and the problem of secondary pollution in the dredging process is caused by restarting deposited sediment particles or sediment clusters due to the disturbance of devices such as a bucket, a reamer, a rake and the like in the dredging process. The anti-fouling screen is a typical representative of a scheme for solving the dredging secondary pollution problem by utilizing an isolation barrier and mainly comprises a suspension type anti-fouling structure and a vertical type anti-fouling structure. The existing antifouling structures mainly have the following disadvantages due to technical and material reasons: structural stability is poor, receives the influence that weather, rivers velocity of flow and pollutant discharge source impact easily in the use, leads to antifouling structure to take place the phenomenon of damage, deformation and displacement, loses the function that blocks the pollutant diffusion, causes antifouling effect not good and life weak point.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides the layered combined type antifouling screen which can improve the stability of the antifouling structure and avoid the phenomena of damage, deformation and displacement of the antifouling structure caused by the influence of weather, water flow velocity and pollutant emission source impact in the use process, so that the antifouling effect of the antifouling structure is improved.

A multi-layer combination-type antifouling screen according to some embodiments of the present invention comprises: positioning the pile; the anti-fouling assembly is connected with the positioning pile, at least two anti-fouling regions are arranged on the anti-fouling assembly from top to bottom, and each anti-fouling region is provided with a filtering hole; wherein, in each adjacent two of the antifouling zones, the pore diameter of the filter pore of the higher antifouling zone is larger than the pore diameter of the filter pore of the lower antifouling zone.

The layered combined type antifouling screen provided by the embodiment of the invention at least has the following technical effects:

in foretell combined antifouling screen of layering, when carrying out the operation of dredging the river course, insert the spud and locate submarine bottom, be connected antifouling subassembly and spud, can guarantee that antifouling subassembly can not take place the displacement because of the flow of rivers and the impact of pollutant emission source when carrying out antifouling operation to guarantee the stability of foretell combined antifouling screen of layering at antifouling process, and then guarantee good antifouling effect.

In addition, in the course of dredging the river channel, the sludge of the river bottom needs to be dredged, and thus the concentration of suspended matters near the river bottom is greater. In the combined antifouling screen of layering of foretell, antifouling subassembly top-down is provided with two at least antifouling regions, and every antifouling region all is equipped with the filtration hole, and in two adjacent antifouling regions, the aperture of the filtration hole of the higher antifouling region in position is greater than the aperture of the filtration hole of the lower antifouling region in position, and the aperture of the filtration hole of antifouling screen reduces along with the position reduction of antifouling region in antifouling subassembly, is favorable to carrying out the antifouling of layering according to the concentration relation of depth of water and suspended solid. Because the river bottom depth of water is big, the concentration of suspended solid can be bigger, consequently, the antifouling region that has the filtration pore in less aperture is located antifouling subassembly's lower position, can contact with deep rivers, is favorable to preventing that the great suspended solid of concentration from getting into clean waters to better antifouling effect has been played. Along with the reduction of the depth of water, the concentration of suspended solid also can reduce, and along with the reduction of the depth of water, the velocity of flow of rivers can increase to, the aperture size that is located the antifouling regional filtration pore of crossing of antifouling higher position of antifouling subassembly carries out corresponding increase, is favorable to the flow of water, prevents because the velocity of flow of rivers increase to antifouling screen formation impact force, avoids the damage of antifouling screen, guarantees better antifouling effect.

According to some embodiments of the present invention, in at least two of the antifouling zones, the antifouling zone located highest is a first antifouling zone, the antifouling zone located below the first antifouling zone and adjacent to the first antifouling zone is a second antifouling zone, the filter holes in the first antifouling zone are first filter holes, the filter holes in the second antifouling zone are second filter holes, and the diameter of the first filter holes is larger than that of the second filter holes.

According to some embodiments of the invention, in at least two of the antifouling zones, the antifouling zone located below and adjacent to the second antifouling zone is a third antifouling zone, the filter holes in the third antifouling zone are third filter holes, and the pore diameter of the third filter holes is smaller than that of the second filter holes.

According to some embodiments of the invention, there are two of the spuds, two of the spuds are juxtaposed and spaced apart, and the anti-fouling assembly is located between the two spuds.

According to some embodiments of the invention, the layered combined type antifouling screen further comprises two positioning pieces, the two positioning pieces are respectively and fixedly connected to the side walls of the two positioning piles in a one-to-one correspondence manner, the two positioning pieces are respectively provided with a limiting groove, the limiting grooves of the two positioning pieces are arranged in parallel and oppositely, and two sides of the antifouling assembly are respectively arranged in the limiting grooves of the two positioning pieces in a penetrating manner.

According to some embodiments of the invention, the anti-fouling assembly comprises at least two anti-fouling units, at least two of the anti-fouling units are arranged from top to bottom, and two sides of each anti-fouling unit respectively penetrate through the limiting grooves of the two positioning pieces;

wherein at least two of the anti-fouling regions are located on at least two of the anti-fouling units in a one-to-one correspondence.

According to some embodiments of the invention, each of the anti-fouling units comprises an anti-fouling member and a frame, the frame is connected to the peripheral edge of the anti-fouling member, and two sides of the frame are respectively inserted into the limiting grooves of the two positioning members.

According to some embodiments of the invention, the anti-fouling unit is detachably connected to the positioning element.

According to some embodiments of the invention, each adjacent two of the fouling prevention units are detachably in sealing fit with each other.

According to some embodiments of the present invention, among at least two of the antifouling units, the antifouling unit that is the highest in position is a first antifouling unit, the antifouling member of the first antifouling unit is a first antifouling member, the antifouling unit that is located below and adjacent to the first antifouling unit is a second antifouling unit, the antifouling member of the second antifouling unit is a second antifouling member, the antifouling unit that is located below and adjacent to the second antifouling unit is a third antifouling unit, and the antifouling member of the third antifouling unit is a third antifouling member;

the first anti-fouling piece is a hollow flat plate, the second anti-fouling piece is a steel wire mesh, and the third anti-fouling piece is an anti-fouling curtain cloth.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural view of a layered combination type dirt shield according to one embodiment of the present invention;

FIG. 2 is a schematic structural view of a first antifouling member according to an embodiment of the present invention;

FIG. 3 is a schematic structural view of a second antifouling member according to an embodiment of the invention;

fig. 4 is a schematic structural view of a third antifouling member according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a first frame according to an embodiment of the invention.

Reference numerals:

100. positioning the pile;

200. a positioning member; 210. a limiting groove;

300. an anti-fouling component; 310. a first antifouling unit; 311. a first antifouling member; 3111. a first dirt repellant region; 3111a, a first filter hole; 320. a second antifouling unit; 321. a second antifouling member; 3211. a second dirt repellant region; 3211a, a second filtering hole; 330. a third contamination prevention unit; 331. a third dirt prevention part; 3311. a third contamination prevention area; 3311a, a third filtering hole; 340. a frame;

400. a grommet;

500. a nylon rope.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1, an embodiment of a layered combination type anti-fouling screen includes a spud 100 and an anti-fouling assembly 300.

Specifically, the anti-fouling assembly 300 is connected with the spud 100, and the anti-fouling assembly 300 is provided with at least two anti-fouling regions from top to bottom, and each anti-fouling region is provided with a filtering hole; wherein, in every two adjacent antifouling areas, the aperture of the filter hole of the higher antifouling area is larger than that of the filter hole of the lower antifouling area.

In the above-mentioned combined antifouling screen of layering, when carrying out the operation of dredging the river course, insert the spud 100 and locate submarine bottom, be connected antifouling subassembly 300 with spud 100, can guarantee that antifouling subassembly 300 can not take place the displacement along with the flow of rivers and the influence of external environment factor when carrying out antifouling operation, and then guarantee good antifouling effect.

In addition, during the course of dredging the river channel, the sludge at the river bottom needs to be dug deeply to remove the sludge at the river bottom, so that the concentration of suspended matters caused by the dredging of the river channel is higher as the depth of the water flow is increased. In the above-mentioned combined antifouling screen of layering, antifouling subassembly 300 is provided with two at least antifouling regions from top to bottom, and every antifouling region all is equipped with the filtration hole, and in two adjacent antifouling regions, the aperture of the filtration hole of the higher antifouling region in position is greater than the aperture of the filtration hole of the lower antifouling region in position, and the aperture of the filtration hole of antifouling screen reduces along with the position reduction of antifouling region in antifouling subassembly 300, is favorable to carrying out the antifouling of layering according to the concentration relation of depth of water and suspended solid. Because the deeper the water depth is, the greater the concentration of suspended solids is, therefore, the antifouling area of the filter holes with smaller apertures is located at the lower position of the antifouling assembly 300, and can contact with deeper water flow, which is beneficial to preventing the suspended solids with greater concentration from entering into a clean water area, thereby playing a better antifouling role. Along with the reduction of the depth of water, the concentration of suspended solid also can reduce, and along with the reduction of the depth of water, the velocity of flow of rivers can increase to, the aperture size that is located the filtration hole of the antifouling region of the higher position of antifouling subassembly 300 carries out corresponding increase, is favorable to the flow of water, prevents because the velocity of flow of rivers increase to antifouling screen formation impact force, avoids the damage of antifouling screen, guarantees better antifouling effect.

As shown in fig. 1, in some embodiments, of the at least two antifouling zones, the antifouling zone located the highest is a first antifouling zone 3111, the antifouling zone located below the first antifouling zone 3111 and adjacent to the first antifouling zone 3111 is a second antifouling zone 3211, the filter holes in the first antifouling zone 3111 are first filter holes 3111a, the filter holes in the second antifouling zone 3211 are second filter holes 3211a, and the pore diameter of the first filter holes 3111a is larger than that of the second filter holes 3211 a.

The filter holes with different apertures are arranged in different antifouling areas, so that the stability of the layered combined antifouling screen in an antifouling process can be ensured, the impact force of water flow on the layered combined antifouling screen is weakened, and the antifouling screen is prevented from being damaged. Since the flow velocity of water increases as the depth of water decreases, the first filtering holes 3111a of the first antifouling area 3111 located at the highest position have the largest pore diameter, and when a water stream having a relatively high velocity flows through the first antifouling area 3111, the larger pore diameter can attenuate the impact of the water stream having a relatively high velocity against the above-mentioned layered combined antifouling screen. In addition, the aperture of the second filtering holes 3211a of the second antifouling area 3211 located below the first antifouling area 3111 and adjacent to the first antifouling area 3111 is smaller than the aperture of the first filtering holes 3111a, and since the second antifouling area 3211 is located below the first antifouling area 3111, the flow velocity of the water flowing through the area is reduced, but the concentration of suspended solids due to disturbance of the river dredging operation increases as the depth of water increases, and in order to simultaneously ensure a better antifouling effect, the second filtering holes 3211a having a smaller aperture than the first filtering holes 3111a are provided in the second antifouling area 3211, which is advantageous for ensuring the better antifouling effect while ensuring the stability of the above-mentioned layered combined antifouling screen in the antifouling process.

As shown in fig. 1, in some embodiments, of the at least two antifouling regions, the antifouling region located below the second antifouling region 3211 and adjacent to the second antifouling region 3211 is a third antifouling region 3311, the filter holes in the third antifouling region 3311 are third filter holes 3311a, and the diameter of the third filter holes 3311a is smaller than that of the second filter holes 3211 a.

Similarly, since the third contamination prevention region 3311 is located below the second contamination prevention region 3211, the flow rate of the water flowing through the third contamination prevention region 3311 is lower than the flow rate of the water flowing through the second contamination prevention region 3211, and as the depth of the water increases, the concentration of suspended solids caused by disturbance of the river dredging operation increases, so that the third contamination prevention region 3311 is provided with the third filtering holes 3311a having a smaller aperture than the second filtering holes 3211a, which is beneficial to ensuring the stability of the layered combined type contamination prevention screen in the contamination prevention process and ensuring a better contamination prevention effect.

As shown in FIG. 1, in some embodiments, there are two spuds 100, two spuds 100 are side-by-side and spaced apart, and the anti-fouling assembly 300 is located between two spuds 100.

Specifically, two spuds 100 are fixedly inserted into the bottom of the water bottom.

Set up two and insert the spud 100 of locating the bottom fixedly, and antifouling subassembly 300 is located between two spuds 100 to can avoid the impact influence antifouling subassembly 300's of weather reason, the flow of rivers and pollutant discharge source stability, avoid antifouling subassembly 300 to take place the phenomenon of deformation and displacement, and then further guarantee that foretell combined antifouling screen of layering has better stability at antifouling in-process.

As shown in fig. 1, in some embodiments, the above-mentioned layered combined type antifouling screen further includes two positioning members 200, the two positioning members 200 are respectively and fixedly connected to the side walls of the two positioning piles 100 in a one-to-one correspondence manner, the two positioning members 200 are respectively provided with a limiting groove 210, the limiting grooves 210 of the two positioning members 200 are arranged in parallel and oppositely, and two sides of the antifouling assembly 300 are respectively inserted into the two limiting grooves 210 of the two positioning members 200.

The limiting groove 210 formed on the positioning member 200 not only serves to connect the anti-fouling assembly 300 and the positioning pile 100, but also serves to limit the anti-fouling assembly 300, thereby further preventing the anti-fouling assembly 300 from deforming and displacing in the anti-fouling process.

As shown in fig. 1, in some embodiments, the anti-fouling assembly 300 includes at least two anti-fouling units, which are arranged from top to bottom, and two sides of each anti-fouling unit respectively penetrate through the limiting grooves 210 of the two positioning members 200; wherein the at least two antifouling areas are located on the at least two antifouling units in a one-to-one correspondence.

Specifically, the at least two antifouling areas are located on the at least two antifouling units in a one-to-one correspondence manner, and in every two adjacent antifouling units, the higher antifouling unit has a filtering hole with a larger aperture, and the lower antifouling unit has a filtering hole with a smaller aperture.

As shown in fig. 2, 3 and 4, each anti-fouling unit includes an anti-fouling member and a frame 340, the frame 340 is connected to the peripheral edge of the anti-fouling member, and two sides of the frame 340 respectively penetrate through the limiting grooves 210 of the two positioning members 200.

Every antifouling piece all is connected with frame 340 along the edge all around, be favorable to further improving the stability of antifouling piece's structure with the help of the gravity of frame 340 itself, avoid antifouling piece to receive external environment's influence and take place the phenomenon of warping, and the both sides of every frame 340 are equallyd divide and are worn to locate in the spacing groove 210 of two setting elements 200, thereby with antifouling piece can be with the help of the vertical spacing groove 210 of placing in two setting elements 200 of the gravity of frame 340 itself, and then connect and advance line location on spud 100, prevent that antifouling piece from taking place the phenomenon of displacement at antifouling in-process, thereby improve antifouling piece's life.

As shown in fig. 1, the anti-fouling unit is detachably connected to the spacer 200.

Specifically, the antifouling unit can be detached from the positioning member 200, so that different antifouling units can be replaced according to different working conditions, and a better antifouling effect is achieved.

As shown in fig. 2, 3, 4 and 5, each two adjacent antifouling units are detachably and hermetically matched with each other.

Every antifouling unit is an independent unit, when one of them antifouling unit does not satisfy the service condition of operating mode now, can dismantle alone and change to can install the antifouling unit of different quantity according to the operating mode of difference, thereby promoted the adaptability of above-mentioned combined antifouling screen of layering to different operating modes.

Specifically, in every two adjacent antifouling units, the frame 340 of the antifouling unit with the higher position can form a sealing fit with the frame 340 of the antifouling unit with the lower position due to the self gravity, and the sealing fit can prevent suspended matters in water flow from flowing into a clean water area from a gap between the two adjacent antifouling units, so that the antifouling effect of the layered combined antifouling screen is improved.

More specifically, the grommet 400 is installed on the frame 340 of each anti-fouling unit, the nylon rope is connected to the grommet 400, and when each anti-fouling unit is disassembled and replaced, the nylon rope is pulled to move up and down, that is, the corresponding anti-fouling unit is driven by the grommet 400 to move up and down in the limiting groove 210, so that the purposes of disassembly and replacement are achieved.

As shown in fig. 2, 3 and 4, of the at least two antifouling units, the highest antifouling unit is the first antifouling unit 310, the antifouling member of the first antifouling unit 310 is the first antifouling member 311, the antifouling unit located below the first antifouling unit 310 and adjacent to the first antifouling unit 310 is the second antifouling unit 320, the antifouling member of the second antifouling unit 320 is the second antifouling member 321, the antifouling unit located below the second antifouling unit 320 and adjacent to the second antifouling unit 320 is the third antifouling unit 330, and the antifouling member of the third antifouling unit 330 is the third antifouling member 331; the first antifouling member 311 is a hollow flat plate, the second antifouling member 321 is a steel wire mesh, and the third antifouling member 331 is an antifouling curtain cloth.

Specifically, the aperture of the filtering holes formed in the hollow flat plate is the largest, the aperture of the filtering holes formed in the antifouling curtain cloth is the smallest, and the aperture sizes of the hollow flat plate, the steel wire mesh and the antifouling curtain cloth can be correspondingly adjusted according to different working conditions.

More specifically, can change the antifouling piece of different materials according to the operating mode of difference to reach better antifouling effect.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A multi-layer combination dirt screen comprising:

positioning the pile; the anti-fouling assembly is connected with the positioning pile, at least two anti-fouling regions are arranged on the anti-fouling assembly from top to bottom, and each anti-fouling region is provided with a filtering hole;

wherein, in each adjacent two of the antifouling zones, the pore diameter of the filter pore of the higher antifouling zone is larger than the pore diameter of the filter pore of the lower antifouling zone.

2. The hierarchically combined type antifouling screen according to claim 1, wherein, of at least two antifouling regions, the antifouling region that is the highest in position is a first antifouling region, the antifouling region that is located below the first antifouling region and adjacent to the first antifouling region is a second antifouling region, the filter holes in the first antifouling region are first filter holes, the filter holes in the second antifouling region are second filter holes, and the first filter holes have a larger pore diameter than the second filter holes.

3. The hierarchically combined type antifouling screen as claimed in claim 2, wherein, of at least two of said antifouling areas, said antifouling area located below and adjacent to said second antifouling area is a third antifouling area, said filter holes of said third antifouling area are third filter holes, and the diameter of said third filter holes is smaller than the diameter of said second filter holes.

4. The screen of claim 1 wherein there are two of the spuds, two of the spuds are juxtaposed and spaced apart, and the dirt repellant assembly is positioned between the two spuds.

5. The combined type of layer antifouling screen of claim 4, wherein the combined type of layer antifouling screen further comprises two positioning members, the two positioning members are respectively and fixedly connected to the side walls of the two positioning piles in a one-to-one correspondence manner, the two positioning members are respectively provided with a limiting groove, the limiting grooves of the two positioning members are arranged in parallel and oppositely, and two sides of the antifouling assembly are respectively arranged in the limiting grooves of the two positioning members in a penetrating manner.

6. The combined-layer antifouling screen as claimed in claim 5, wherein the antifouling assembly comprises at least two antifouling units, the at least two antifouling units are arranged from top to bottom, and two sides of each antifouling unit respectively penetrate through the limiting grooves of the two positioning members;

wherein at least two of the anti-fouling regions are located on at least two of the anti-fouling units in a one-to-one correspondence.

7. The layer combination type antifouling screen according to claim 6, wherein each of the antifouling units comprises an antifouling member and a frame, the frame is connected to the peripheral edge of the antifouling member, and both sides of the frame are respectively inserted into the limiting grooves of the two positioning members.

8. The layered combination type antifouling screen of claim 6, wherein said antifouling unit is detachably attached to said spacer.

9. The layered combination stain resistant screen of claim 6 wherein each adjacent two of said stain resistant units are in releasable sealing engagement.

10. The layer combination type antifouling screen according to claim 7, wherein, of at least two of the antifouling units, the antifouling unit that is the highest in position is a first antifouling unit, the antifouling member of the first antifouling unit is a first antifouling member, the antifouling unit that is located below and adjacent to the first antifouling unit is a second antifouling unit, the antifouling member of the second antifouling unit is a second antifouling member, the antifouling unit that is located below and adjacent to the second antifouling unit is a third antifouling unit, and the antifouling member of the third antifouling unit is a third antifouling member;

the first anti-fouling piece is a hollow flat plate, the second anti-fouling piece is a steel wire mesh, and the third anti-fouling piece is an anti-fouling curtain cloth.

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