JP3459503B2 - Pollution control device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pollution control device, and more particularly, to a reclamation / dredging site or the like constructed in a sea area with a large difference in ebb and flow and a fast tide. The present invention relates to a pollution control device to be installed in a building. 2. Description of the Related Art A conventional pollution control device of this kind is shown in FIGS.
It will be described according to. In the drawing, reference numeral 1 denotes a float, a curtain 2 made of a polyester woven fabric is suspended on the float 1, a chain 3 is attached to the lower end thereof, and an intermediate float 4 is provided substantially at the center of the curtain 2. It is attached. [0003] The intermediate float 4 is provided so as to float on the low water level L when the water level falls from the high water level H to the low water level L at low tide, and The curtain 2 between the intermediate float 4 and the lower chain 3 is maintained as vertical as possible, and the lower portion of the curtain 2 is mounted so as not to rub against the seabed. Numeral 3 is provided to reduce the curtain 2 from being swept by the tide. [0004] In the above-mentioned prior art, when installed in a sea area where the tidal difference is large and the tidal current is fast, the usage limit flow rate of 0. Since the velocity is about 5 m / s in the sea area, the flow rate in the sea area is much larger than the limit flow velocity. Therefore, the conventional pollution control device has almost no pollution reduction effect in the sea area having such a high flow rate. Cannot be expected. [0005] Therefore, there arises a technical problem to be solved in order to obtain a pollution control device that can be expected to have a pollutant reduction effect even in a sea area where the tide is fast, and the present invention aims to solve the problem. I do. SUMMARY OF THE INVENTION The present invention has been proposed to achieve the above object, and a pollution prevention film is suspended from a float floating on the surface of water, and the pollution prevention film is provided. In a pollution control device in which a weight is attached to a lower end of the film, a curtain which is a component of the pollution control film is made of a synthetic resin material of a predetermined size, and the float is made of a synthetic resin. A tension belt is connected, and the tension belt is provided with a vertical and horizontal synthetic resin reinforcement belt at a position corresponding to a peripheral portion of each curtain to be disposed as a pollution prevention film, and a lattice-shaped frame portion is formed. The upper edge of the uppermost curtain is connected to the tension belt, and the upper edge of each lower curtain is connected to the upper lateral reinforcing belt of each lattice of the corresponding frame portion to open and close the lower portion. Freely And, one side edge of the high water permeable membrane having a predetermined width is attached to the lower edge of the curtain, and the other side edge of the high water permeable membrane is connected to the lower lateral reinforcing belt of each corresponding grid. The present invention provides a pollution control device comprising: When the apparatus of the present invention is installed in a sea area where the tidal range is large and the tidal current is fast, the tidal current collides with each curtain and presses the curtain in the flow direction. If so, the curtain expands its lower part with its upper edge at the pivot base.
At this time, the highly water-permeable membrane attached to the lower edge of the curtain restricts the curtain from being unnecessarily expanded, and maintains the curtain in the diagonally downwardly expanded state. In addition, the tidal current flowing by pressing the curtain is changed in the direction of the seabed while passing through the highly permeable membrane. Thus,
The pollution control device of the present invention reduces the load due to the tidal flow velocity, filters the sewage, makes the flow uniform, and
Prevent the spread of pollutant particles and promote early settling,
We are working to reduce pollution. An embodiment of the present invention will be described below in detail with reference to FIGS. 1 to 3. In the drawing, 10 is a float. The float 10 is constituted by covering a bag made of styrene foam or the like with a jacket made of polyester woven turbolin or the like. In this embodiment, the float 10 has a thickness of approximately 600 mm, and floats on both the high water level H and the low water level L where the tidal difference is large. Reference numeral 11 denotes a curtain made of a woven polyester fabric. The curtain 11 has a size of, for example, about 1.5 m in length and about 2 m in width, but should not be limited to this. Further, the curtains 11 are arranged vertically and horizontally, and the uppermost curtains 11, 11... Are connected to the float 10 via a tension belt 12. Further, each curtain 11, 11 is positioned at a lateral length from the tension belt 12 to each of the curtains 11, 11,.
Vertical reinforcing belts 13, 13,... Corresponding to the vertical frames of 11,.
Are provided in the vertical direction of the vertical reinforcing belts 13, 13..., And at the width positions of the curtains 11 in the vertical direction, corresponding to the horizontal frames of the curtains 11, 11. Are provided, and together with the tension belt 12, constitute a lattice-shaped frame portion F. Thus, the curtains 11, 11... Are disposed on the grid-shaped frame portion A, respectively. The uppermost curtains 11, 11,. And each curtain 11, 11 in the lower stage
Are connected to the upper lateral reinforcing belts 14, 14 in each lattice of the frame portion A. Therefore, each of the curtains 11, 11,... Is formed so that the lower end thereof is in each lattice with the upper end edge as a rotation base, and is rotatable back and forth. Are attached to the lower edges of the curtains 11, 11,..., And the other edges of the highly water-permeable membranes 15, 15,. Are attached to the lateral reinforcing belts 14 facing each other. In this embodiment, the highly water-permeable membranes 15, 15,... Are a kind of so-called multiple weaves woven with synthetic resin threads, and as shown in FIG. In some places, very high mesh grid-like windows 15a, 15a... Formed by simply superimposing yarns on the front and rear surfaces are used, but of course the material is limited to this material. Should not be. The length between the respective edges of the highly water-permeable membrane 15 may be formed to be about half the length of the curtain 11 in the vertical direction. The length is arbitrarily determined in consideration of the situation at the site. Thus, as shown in FIG. 2 (a), the curtains 11, 11,... Usually hang down in a substantially vertical state due to the weight of the chain 16 attached to the lower part. When the flow velocity is generated, FIGS.
As shown in the figure, the left or right side of FIG.
At this time, since the lower end edges of the curtains 11, 11,... Are restricted in the rotation range by the highly water-permeable membrane, the opening direction of the curtains 11, 11,. Therefore, the tide is directed downward, and the highly permeable membranes 15, 15
... from the bottom of the sea to promote the early settling of pollutant particles contained in the tidal current. Also, curtains 11, 11 at low tide ...
An intermediate float 17 is attached in the same manner as in the conventional example in order to prevent raising of the bottom mud as a result of rubbing between the ground and the seabed ground and breakage of the curtains 11 as much as possible. That is, when the water surface is displaced to the low water level L at the time of low tide, the intermediate float 17 is arbitrarily bent from the portion of the lateral reinforcing belts 14, 14,. And emerged,
The curtains 11, 11,... Between the intermediate float 17 and the lower chain 16 maintain a vertical state, and the curtains 11, 11,. It is less. The present invention can be variously modified without departing from the spirit of the present invention, and it goes without saying that the present invention extends to the modified ones. Since the present invention relates to an apparatus as described in detail in the above embodiment, the apparatus of the present invention can be used in a landfill where sea level is large and tidal current is fast. When installed at a dredging construction site, the tide collides with the side of the curtain and presses the curtain in the flow direction of the tidal current, and the curtain expands at the lower edge with the upper edge of the curtain as a pivot base. Open. However, since the spreading direction is regulated by the highly permeable membrane and is open toward the seabed, the tide changes its direction along the side of the curtain toward the bottom of the sea, and As a result, the water flows out toward the sea bottom while being filtered. Thus, the apparatus of the present invention reduces the load due to the tidal flow velocity, improves the life of the curtain, further filters sewage and makes the flow uniform, and reduces the diffusion of polluting particles as much as possible. It is an invention that has a truly remarkable effect, for example, by preventing contamination and promoting early sedimentation, whereby the effect of preventing pollution can be exerted for a long period of time.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of the present invention, and is a front view of a pollution control device. 2 (a), 2 (b) and 2 (c) are cross sections taken along the line AA of FIG. 1, respectively. FIG. 2 (a) shows a state where a curtain is suspended, and FIG. 3C shows a state in which the flow is from right to left, and FIG. 3C shows a state in which the flow is from left to right. FIG. 3 is a partially cutaway front view of a highly water-permeable membrane. FIG. 4 is an explanatory side view of a conventional example. FIG. 5 is an explanatory side view showing a conventional example when a tide level becomes a low water level. [Description of References] 10 Float 11 Curtain 12 Tension Belt 13 Vertical Reinforcement Belt 14 Lateral Reinforcement Belt 15 Highly water-permeable membrane 16 Chain

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. ⁷ , DB name) E02B 15/00 E02B 15/06

Claims (1)

(1) An anti-pollution device in which an anti-pollution film is suspended from a float floating on the water surface and a weight is attached to a lower end of the anti-pollution film. In this case, the curtain as a component of the anti-pollution film is made of a synthetic resin material of a predetermined size, and a tension belt made of a synthetic resin is connected to the float, and the tension belt is used as an anti-pollution film. Reinforcement belts made of vertical and horizontal synthetic resin are arranged at corresponding positions of the peripheral edge of each curtain to be arranged to form a lattice-shaped frame portion, and the upper end edge of the uppermost curtain is connected to the tension belt. The upper edge of each lower curtain is connected to the upper lateral reinforcement belt of each lattice of the corresponding frame so that the lower portion can be freely opened and closed, and the lower edge of the curtain has a high water permeability having a predetermined width. Take one side edge of the membrane Only, pollution prevention device formed by connecting the other side edge of the high permeability layer body lower portion lateral bracing belt of each grating respectively corresponding.