JP2001190903A - Water purifying apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water purifying apparatus capable of being achieved in the simplification of the structure and the reduction in the number of parts and capable of dispensing with complicated work for forcibly inclining and returning respective capture plates. SOLUTION: In the water purifying apparatus equipped with a plurality of capture plates 6 almost horizontally arranged in the up-and-down direction at a predetermined interval and the support member 5 for connecting the capture plates 6 in the up-and-down direction and constituted so as to sediment foreign matter in water on the capture plates to allow the sediment captured on the capture plates to fall by inclining the capture plates, each of the capture plates is formed into a structure floated in water by buoyancy and one end parts of the capture plates 6 are connected to the support member 5 in a revolvable manner through hinge means 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water purification apparatus used in a coagulating sedimentation basin of a water purification plant.

[0002]

2. Description of the Related Art Conventionally, in a pond such as a coagulating sedimentation pond of a water purification plant, a coagulant is injected into a foreign substance such as suspended matter in water containing ultrafine particles to collect particles which can be regarded as independent particles. 2. Description of the Related Art Purification is carried out by producing flocs as bodies and sedimenting and sedimenting the flocs.

[0003] As a water purifying apparatus used for this kind of purifying operation, for example, according to Japanese Patent Application Laid-Open No. Hei 6-226243, a beam is erected on an upper part of a coagulation sedimentation basin and the like, and a plurality of trap plates are vertically moved. There is disclosed a configuration in which the capture plates are vertically connected by suspending members suspended from and supported by the beams.

According to this water purification apparatus, flocs whose particle size and specific gravity have been increased by injecting a flocculant are sedimented and sequestered on each trapping plate held substantially horizontally,
When the captured flocks reach the desired amount, the flocs are slid down by tilting each capture plate,
Deposition is performed on the bottom of the pond.

[0005] The accumulated flocs are removed from the bottom of the pond by cleaning machinery.

[0006]

In the water purifying apparatus disclosed in the above-mentioned publication, the rotation of the beam around the axis and the tilting movement of each capture plate are interlocked, or one end of the beam is attached to the beam. The rotation of the arm that is pivotally supported and the tilting movement of each of the capturing plates are interlocked.

Therefore, according to this water purifying apparatus, by rotating the beam or the arm in one direction, each catch plate is inclined from a substantially horizontal state, and the flock slides down.
By rotating in the other direction, each capture plate returns to the initial substantially horizontal state.

In this case, to rotate the beam,
It is necessary to separately attach an operation rod or the like to the beam, and the operator must operate the operation rod or the like.To rotate the arm, a rotation drive device including a drive cylinder and a link mechanism is separately provided. In addition, the operator needs to operate the rotary drive.

For this reason, the structure of the water purification device becomes complicated, the number of parts increases, and the cost rises.
Each time a desired amount of floc is deposited on each catching plate, the operator is forced to perform a complicated operation for forcibly tilting and returning each catching plate, and there is a problem that a large amount of labor is required.

[0010] The water purification apparatus disclosed in the publication has a large number of beams and a large number of arms, so that this kind of problem becomes more remarkable.

The present invention has been made in view of the above-mentioned conventional problems, and can simplify the structure and reduce the number of parts. Further, the present invention eliminates a complicated operation for forcibly tilting and returning each catching plate. It is an object of the present invention to provide a water purification device which can be used.

[0012]

According to the present invention, a plurality of capture plates 6 arranged substantially horizontally at predetermined intervals in the vertical direction are provided.
And a support member 5 for vertically connecting each of the capturing plates 6 to sediment and sediment the foreign substances in the water by sedimentation on the respective capturing plates 6. In the water purifying device configured to be dropped by being inclined, each of the catching plates 6 is structured to float in the water by buoyancy, and one end of each of the catching plates 6 is connected to each of the catching plates 6 via the hinge means 13. It is rotatably connected to the support member 5.

[0013]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 10 illustrate one embodiment of a water purification device according to the present invention. As shown in FIGS. 1 to 3, the water purification apparatus 1 is installed, for example, in a coagulation sedimentation basin 2. For example, a chemical mixing pond is constructed on the side, and a filtration pond is constructed on the downstream side, for example. In this case, in the flocculation sedimentation basin 2, foreign matter such as suspended matter in water containing ultrafine particles becomes flocs, which are aggregates of particles having a large particle diameter and specific gravity, due to the injection of the flocculant on the upstream side. Are settled down. The water purification device 1 has a structure for catching the settled flocs.

A plurality of sedimentation units 3 are suspended in the coagulation sedimentation basin 2 from the upstream side to the downstream side at substantially equal intervals along the flow direction A of water. Each of the settling units 3 includes a hanging beam 4 erected above the coagulating sedimentation basin 2, a plurality of hanging columns 5 supported by the hanging beams 4, and each of the hanging columns 5. And a plurality of capture plates 6 connected to the same.

[0015] The beam 4 is lowered each suspension is a hollow square pipe or a U-shaped shape steel, a direction perpendicular to the flow direction A of the water in plan view (hereinafter, referred to as lateral direction) so as to extend in The coagulating sedimentation basin 2 is erected on the left and right side walls 2a. At the upper end of the left and right side walls 2a, FIG.
(The right side wall is not shown.)
Guide rod extending vertically corresponding to the array position of 4
Each of the guide rods 8 is inserted into each of the guide holes 4a formed vertically through the left and right ends of each of the suspension beams 4. An elastic body, that is, a spring 9 wound around the outer periphery of the guide rod 8 is interposed between the lower end surfaces of the left and right end portions of each suspension beam 4 and the upper end surfaces of the left and right side walls 2a. The left and right ends of each suspension beam 4 are elastically supported on the upper ends of the left and right side walls 2a. Therefore, each suspension beam 4 is
The support structure is configured to allow the application of vibration by the action of each elastic body (spring 9). The guide rod 8 is fixed by an anchor bolt or the like.

As shown in FIGS. 5 and 6, a plurality of stays 10 are fixed to the lower surface of each of the hanging beams 4 at substantially equal intervals in the longitudinal direction by welding or the like. Numerals 10 are arranged so as to extend along the flow direction A of water. Each stay 10 has a hanging beam
At a position that is symmetrical with respect to FIG. 4, a suspending column 5 as a pair of support members is suspended. As shown in FIGS. 7 and 8, each of the hanging posts 5 is a square pipe, the upper end of which is fixed to the stay 10 via a bracket 11, and the lower end of which is the bottom of the coagulating sedimentation basin 2. It is in a state of floating at a predetermined depth position in water without being grounded.

One end of a plurality of capturing plates 6 arranged at predetermined intervals in the vertical direction is rotatably connected to each of the hanging posts 5 via hinge means 13.
More specifically, a pair of suspension plates 5 suspended from and supported by each stay 10 are provided with a pair of hinge plates 13 at each of a plurality of height positions on both sides in the left-right direction. Are connected via Therefore, one end of each capture plate 6
It is connected to a hanging support 5 so as to be rotatable around a flow axis along the flow direction A of water.

The arrangement structure of each of the capturing plates 6 in plan view is as follows.
As shown in FIG. 3, the trap plates 6 are arranged in a plurality of rows in the water flow direction A, and the trap plates 6 in the adjacent rows are mutually displaced in the left-right direction to form a staggered shape. I have. Also,
As shown in FIG. 1, the arrangement of the capture plates 6 in a side view is such that adjacent capture plates 6 in adjacent rows are vertically displaced by a half pitch so as to be staggered.

Each of the catching plates 6 is structured to float by buoyancy by water in the coagulating sedimentation basin 2. Specifically, each of the catching plates 6 is made of a material such as resin having a specific gravity smaller than that of water. I have. When buoyancy due to water acts on each of the capturing plates 6, the floating of one end of each of the capturing plates 6 is caused by the hinge means 13.
Therefore, a force for floating the anti-hinge means 13 side, that is, a force for rotating each capture plate 6 around one end, is applied to each capture plate 6. As shown in FIGS. 4 and 5, a plurality of (four in the illustrated example) floc ribs 14 are provided on the lower surface of each of the catch plates 6 and extend along the flow direction A of the water. It is formed to protrude.

Each of the trapping plates 6 has a structure in which the buoyancy acting on the trapping plate 6 at a lower position is smaller than the buoyancy acting on the trapping plate 6 at an upper position. In other words, when the same weight of floc acts on each of the capturing plates 6, the capturing plate 6 in the lower position is more resistant to buoyancy on the anti-hinge means 13 side than the capturing plate 6 in the upper position. It is structured to descend and incline. In this case, the structure may be such that the buoyancy gradually decreases for each sheet as it moves downward in order from the uppermost capturing plate 6, or the structure may be such that the buoyancy decreases stepwise for a plurality of sheets. .

As shown in FIGS. 7 and 8, each of the hinge means 13 includes a fixed bracket 15 fixed to the side surface of the hanging support 5 and a movable bracket 16 fixed to the upper surface of the capturing plate 6. It is configured to be rotatably connected via a member 17. A projecting piece 18 protruding upward is attached to the movable bracket 16, and the projecting piece 18 can be brought into contact with and separated from the end face of the fixed bracket 15.
Then, under a state where the protruding piece 18 is in contact with the end face of the fixed bracket 15, the capturing plate 6 is in a substantially horizontal state, and the capturing plate 6 is moved so that the hinge means 13 side thereof is lowered. The projecting piece 18 is separated from the end face of the fixed bracket 15 by being inclined. Therefore, the pivoting of the capturing plate 6 around the hinge means 13 due to the action of the buoyancy, that is, the pivoting of the capturing plate 6 in the direction in which the anti-hinge means 13 side rises, is performed by the stopper formed by the projecting piece 18 and the fixing bracket 15. By means 19, the capturing plate 6 is regulated in a substantially horizontal state.

The arrangement of the suspension columns 5 in plan view is such that the suspension columns 5 arranged in a line in the left-right direction are arranged in a plurality of rows with respect to the water flow direction A. The lower end of each of the hanging posts 5 is arranged on each of the left and right side walls 2a for each row.
Rigid connecting members such as wire ropes respectively erected so as to extend in the left-right direction across the middle part in the height direction.
12 are connected to each other via connecting members 20 (see FIG. 2).
As shown in FIGS. 8 and 9, for example,
A ring-shaped body 21 having a large-diameter hole formed therein and a cylindrical body 22 having a small-diameter hole formed therein are integrally fixed in a crossed manner, and a bolt 23 is screwed on a peripheral wall portion of the cylindrical body 22. Have been combined. The lower end of the suspension column 5 is loosely inserted into the large-diameter hole of the ring-shaped body 20, and a connecting member 12 is inserted through the small-diameter hole of the tubular body 21, and the connecting member 12 is It is fastened and fixed to the cylindrical body 21 using a lock nut 23 and a lock nut 24.

It should be noted that the water purifier 1 includes
Is provided with a rotation imparting device 25 for assisting the rotation of the rotation. As shown in FIGS. 4 to 6, the rotation applying device 25 includes driving means 26 disposed at one end of each hanging beam 4 and a longitudinal direction (left and right) of each hanging beam 4. And the driven means 27 respectively disposed at positions corresponding to the respective hanging posts 5 in the direction (direction).

Each of the driving means 26 includes a hanging beam 4
A drive rotator 30 rotatably mounted around a drive shaft 29 of a drive source 28 fixed to the rotator 28.
It is configured to be rotated by an electric motor 31, an air cylinder, a hydraulic cylinder, or a handle 32 for manual operation. A flexible interlocking strip 33 such as a wire rope is connected to the drive rotating body 30 at a position separated from the drive shaft 29 by a predetermined distance.

Each of the driven means 27 includes a hanging beam 4
Driven rotor 37, which is rotatably mounted on a bracket 34 fixed to the upper surface of the bracket via a pair of support shafts 35, 36, respectively.
And a second driven rotary member 38, and a first driven rotary member 38, which is integrally rotatably attached to the rotary members 37 and 38 and meshes with each other.
A gear 39 and a second gear 40 are provided. Both the first driven rotary member 37 and the second driven rotary member 38 have respective support shafts 35 and 36 attached thereto.
At a predetermined distance from each other, and at positions that are symmetrical with each other, a flexible first suspension support strip 41 and a second
The suspension support strip 42 is connected, and the second driven rotary body 38
The interlocking strip 33 is connected to a position separated from the support shaft 36 by a predetermined distance.

The first suspension support strip 41 and the second suspension support strip
At 42, the respective capturing plates 6 on the left and right sides of the hanging support 5 are vertically connected at the same pitch as the vertical arrangement pitch of the hinge means 13. This connecting portion inserts the hanging support strip 42 (41) into a through hole 43 formed in the capturing plate 6 and inserts a pair of spherical bodies 44 sandwiching the capturing plate 6 from both upper and lower sides into the hanging support strip. It is configured to be fixed to the body 42 (41). The second driven rotator 38 is disposed farther from the driving means 26 than the first driven rotator 37, and the second driven rotator 38 is connected to the second driven rotator 38. The downward pulling force acts on the interlocking strip 33. The first suspension support strip 41 and the second suspension support strip 42 are inserted into an elongated hole 45 formed in the suspension beam 4 so as to extend in the left-right direction and penetrate vertically. Hanging.

According to the water purification apparatus 1 of this embodiment, while the water flows from the upstream side to the downstream side in the coagulating sedimentation basin 2 along the direction of arrow A, the fine particles floating in the water The foreign matter such as becomes a floc as a particle aggregate by the injection of the flocculant on the upstream side, and the floc settles down on each catching plate 6 of each settling unit. Then, when the amount of flocs on each catching plate 6 increases with time and the sum of the weight of the flocks and each catching plate 6 becomes larger than the buoyancy, the anti-hinge means of each catching plate 6
The 13 side starts to descend. Thereafter, due to the further increase in the amount of flocs, when the inclination angle of each capturing plate 6 becomes equal to or greater than a predetermined value, the flocs slide down by their own weight. As described above, the natural phenomenon caused by the balance between the increase in the weight of the flock and the buoyancy is effectively used, and the flock slides down naturally with the lapse of time. Is eliminated, and simplification of the apparatus and reduction of manufacturing costs are achieved.

In this case, since the sliding of the flocs is left to natural phenomena, not all the flocs on each catching plate 6 slide down smoothly. Therefore, when the sliding of the flock on each capturing plate 6 is insufficient, the vibration is applied to each suspending beam 4 manually or automatically by the stepping force of an operator's foot or by a vibration device provided separately. By transmitting this vibration to each of the capturing plates 6, the flocs on each of the capturing plates 6 are forcibly and simultaneously slid down.

Further, each of the catching plates 6 is located at the upper position.
Since the buoyancy acting on the lower capture plate 6 is smaller than the buoyancy acting on the lower capture plate 6, the upper capture plate 6 will descend and tilt earlier than the lower capture plate 6. Such a situation does not occur, and problems such as interference between the upper and lower capturing plates 6 to prevent smooth sliding of the flocks are effectively avoided.

After the flock slides down as described above, each catching plate 6 returns to the non-inclination direction by buoyancy,
When the protruding piece 18 of the movable bracket 16 comes into contact with the end face of the fixed bracket 15, its return movement is restricted, and each capture plate 6 is maintained in a substantially horizontal state. Then, the foreign substances in the water again become flocs and settle and settle on the respective capturing plates 6, whereby the same operation as described above is repeatedly executed.

The water purification apparatus 1 is based on the above-described operation.
In the process of inclining each of the capturing plates 6 from the substantially horizontal state, it is required that the interlocking strip 33 is not locked in a pulled state.

On the other hand, in the water purifying apparatus 1, by operating the rotation applying device 25 in an auxiliary manner, the following operation can be performed on each capturing plate 6.

That is, until a sufficient amount of floc is deposited on each catching plate 6 to ensure that slippage occurs,
The interlocking strips 33 are locked to keep each of the catching plates 6 in a substantially horizontal state, and when a sufficient amount of flock has accumulated on each of the catching plates 6, the motor 31 of the driving means 26 or the handle 32 Operation, the interlocking strip 33 is relaxed.

Thus, the second driven rotor 38 shown in FIG.
And the second gear 40 rotates clockwise, the first driven rotating body 37 and the first gear 39 rotate counterclockwise, and the first suspension support member 41 and the second suspension support member 42 Move down. Along with this, when each of the capturing plates 6 is inclined and the angle of inclination becomes equal to or more than a predetermined value, the flocs on each of the capturing plates 6 slide down at once. At this point, all the capture plates
6 Vibration can be applied to each suspension beam 4 in the same manner as described above to ensure that the upper floe slides down.

Thereafter, each catching plate 6 returns in the non-inclination direction by the buoyancy of water. At the same time, the interlocking strip 33 is tensioned by operating the motor 31 or the handle 32 of the driving means 26, and the movable bracket Bracket for fixing 16 projections 18
Each catching plate 6 is maintained in a substantially horizontal state by being brought into contact with the end face of 15. By repeating the above operation, foreign matter in the water is deposited on the bottom surface of the coagulation sedimentation basin 2 via each trap plate 6, and the water in the upper layer is appropriately purified.

As described above, since the inclination angle of each capturing plate 6 can be arbitrarily changed by the rotation imparting device 25 in an auxiliary manner, the maintenance and management can be performed labor-saving by remote operation or the like. . The number of actuations of the rotation applying device 25 is extremely small.

Even if each of the catching plates 6 is inclined by the accumulation of floc, each of the catching plates 6 is inclined by rotating about the flow axis along the flow direction A of water.
Water flow does not collide with the slope from the front,
Therefore, it becomes possible to equip each capture plate 6 with high density.

In addition, since each of the capturing plates 6 in the adjacent row is displaced in the left-right direction and is staggered, the capturing plates 6 in one row are inclined. Even if there is a gap between the capturing plates 6 adjacent to each other in the left-right direction of the row, this gap and the gap similarly generated in other adjacent rows are different from each other.
They are not aligned with the direction of flow of water. Therefore, it is possible to avoid a situation where water flows along a straight line in the gap, and the operation of each of the trapping plates 6 for trapping foreign matter is performed by the coagulation sedimentation tank.
2 can be performed uniformly throughout.

As described above, one embodiment of the present invention has been described in detail. However, the present invention is not limited to this embodiment, and can be implemented in other various modes.

For example, in the above-described embodiment, a coil spring is used as the elastic body for elastically supporting the suspension beam, but a leaf spring or a cushion material such as rubber may be used instead. Further, in the above embodiment, the suspension beam is configured to vibrate in the vertical direction, but instead or together with the suspension beam, the suspension beam is moved in the direction along the water flow direction A and / or in the left-right direction. You may comprise so that it may vibrate.

Further, in the above-described embodiment, the connection between the driving means and the driven means, the connection between the driven means and the catching plate, the connection between the catching plates, and the connection between the hanging posts,
Although a flexible strip is used, a link mechanism, a rigid body, or the like may be used for all or some of these connections.

[0042]

According to the present invention, there are provided a plurality of capturing plates 6 arranged substantially horizontally at predetermined intervals in a vertical direction, and a supporting member 5 for connecting the capturing plates 6 vertically. In a water purification apparatus configured to sediment and sediment the foreign matter in water by sedimentation and sedimentation on each of the trapping plates 6, and drop the trapped sediment by tilting each of the trapping plates 6.
Each of the capturing plates 6 has a structure of floating underwater by buoyancy, and one end of each of the capturing plates 6 is rotatably connected to the support member 5 via each hinge means 13, so that each of the capturing plates 6 is rotatable. As the amount of sediment deposited on the plate 6 increases, each seizing plate 6 rotates around each hinge means 13 and tilts against the buoyancy of water, so that the sediment slides down. However, after the sediment slides down, each catching plate 6 returns by the buoyancy of water. Therefore, without any forced operation, it is possible to cause the sediment to slide down due to the inclination of each catching plate 6 and the subsequent return movement of each catching plate 6 without any natural operation. Can be simplified and the number of parts can be reduced, and a complicated operation for forcibly tilting and returning each capture plate can be eliminated. In other words, the balance between the buoyancy acting on the trapping plate 6 and the weight of the trapped substance allows the trapping plate 6 to operate naturally from a right angle to substantially parallel to the support member 5. Thus, material and labor can be saved in terms of the number of parts and operability.

Since each of the catching plates 6 is made of a material having a specific gravity smaller than that of water, each catching plate 6 can be floated in water by buoyancy without taking special measures.

Further, since each of the trapping plates 6 has a structure in which the buoyancy acting on the trapping plate 6 in the lower position is smaller than the buoyancy acting on the trapping plate 6 in the upper position,
6 does not incline against the buoyancy before the lower capturing plate 6 does not incline, and avoids problems such as interference of the upper and lower capturing plates 6 to prevent the floc from dropping smoothly. Can be.

Further, since stopper means 19 for regulating the rotation of the hinge means 13 around the hinge means 13 due to the buoyancy of the respective capture plates 6 in a state where the respective capture plates 6 are substantially horizontal are provided, the respective capture plates 6 are provided.
The return movement by the buoyancy after the sediment slides down due to the inclination of 6,
Restricted by the stopper means 19, each capturing means 6 can be reliably returned to a substantially horizontal state.

Further, since each of the hinge means 13 connects one end of each of the capturing plates 6 to the supporting member 5 so as to be rotatable around a flow axis along the flow direction of the water, Even if the plate 6 rotates and tilts due to the accumulation of sediment, the flow of water does not collide with the inclined surface from the front, and it is inconvenient to equip the trapping plates 6 with high density. Hard to occur.

Further, the catching plates 6 are arranged in a plurality of rows with respect to the direction of flow of water, and the catching plates 6 of adjacent rows are mutually displaced in a horizontal direction orthogonal to the flow of water, thereby staggering. Therefore, even if each capture plate 6 in one row is inclined to form a gap between adjacent capture plates 6 in that row, the gap and the adjacent rows in the other rows are similarly formed. The generated gap does not line up with the flow direction of the water, so that a situation in which water flows along the gap in a straight line is avoided, and the trapping operation of each trapping plate 6 for foreign matter is prevented. It can be uniform throughout.

Further, each of the capturing plates 6 is connected to the supporting member 5.
Are arranged symmetrically on both sides of each capture plate.
The number of support members 5 can be reduced by half, and the number of parts can be reduced.

Further, the supporting member 5 is suspended and supported by a beam 4 erected above the pond 2, and a vibration permitting means 9 for permitting vibration to the beam 4 is provided.
When each capture plate 6 is inclined, the beam 4
By vibrating the sediment, the sediment on each capture plate 6 can be slid down at once and surely.

The vibration permitting means 9 is provided with the beam
Since the elastic body 9 is elastically supported on the upper part of the pond 2, the complicated structure for supporting the beam 4 is not required, and the apparatus can be simplified.

Further, the lower end of the support member 5 has a pond.
2, the connection rigidity is increased by the connection with the connection member 12 even when the support member 5 is suspended deeply in the water, since the connection member 12 is connected to the connection member 12 erected substantially horizontally in the housing 2. The durability can be improved.

[Brief description of the drawings]

FIG. 1 is a schematic side view showing an overall configuration of a water purification device according to an embodiment of the present invention.

FIG. 2 is a schematic front view showing the overall configuration of the water purification device according to one embodiment of the present invention.

FIG. 3 is a schematic plan view showing the overall configuration of the water purification device according to one embodiment of the present invention.

FIG. 4 is an enlarged front view showing a configuration of a main part of the water purification device according to one embodiment of the present invention.

FIG. 5 is an enlarged plan view showing a main part configuration of a water purification device according to one embodiment of the present invention.

FIG. 6 is an enlarged vertical sectional side view showing a configuration of a main part of a water purification device according to an embodiment of the present invention.

FIG. 7 is an enlarged plan view illustrating a configuration of a main part of the water purification device according to the embodiment of the present invention.

FIG. 8 is an enlarged vertical sectional front view showing a configuration of a main part of the water purification device according to one embodiment of the present invention.

FIG. 9 is an enlarged vertical cross-sectional side view showing a configuration of a main part of a water purification device according to an embodiment of the present invention.

FIG. 10 is an enlarged cross-sectional plan view illustrating a main configuration of a water purification device according to an embodiment of the present invention.

[Explanation of symbols]

 1 Water purification device 4 Beam (hanging beam) 5 Support member (hanging column) 6 Capture plate 9 Vibration allowance means (elastic body) 12 Connecting member 13 Hinge means 19 Stopper means

Claims (10)

[Claims] A plurality of capture plates arranged substantially horizontally at predetermined intervals in a vertical direction, and a support member for vertically connecting each of the capture plates. In a water purification apparatus configured to sediment and sediment the foreign matter in water by sedimentation and sedimentation on each of the trapping plates (6), and drop the trapped sediment by tilting the trapping plates (6). Each of the capturing plates (6) is structured to float underwater by buoyancy, and one end of each of the capturing plates (6) is connected to each hinge means.
A water purification device, which is rotatably connected to the support member (5) via (13). 2. The water purifying apparatus according to claim 1, wherein each of the capturing plates (6) is formed of a material having a specific gravity smaller than that of water. 3. Each of the capturing plates (6) is located at an upper position.
The water purifying apparatus according to claim 1 or 2, wherein the buoyancy acting on the catch plate (6) at a lower position is smaller than the buoyancy acting on (6). 4. A stopper means (19) for restricting the rotation of each of the capturing plates (6) around the hinge means (13) due to the action of buoyancy in a state where each of the capturing plates (6) is substantially horizontal. The water purification device according to any one of claims 1 to 3, further comprising: 5. Each of said hinge means (13) is provided with each of said catch plates.
The one end of (6) is connected to the support member (5) so as to be rotatable around a flow axis along the flow direction of water. Water purification device. 6. The capture plates (6) are arranged in a plurality of rows in the direction of water flow, and the capture plates (6) in adjacent rows are mutually connected in a horizontal direction orthogonal to the flow of water. The water purification device according to claim 5, wherein the water purification device is displaced in a staggered shape. 7. Each of the capturing plates (6) is connected to the supporting member (5).
The water purification device according to any one of claims 1 to 6, wherein the water purification devices are arranged symmetrically on both sides of the water purification device. 8. A vibration permitting means for suspending and supporting said support member (5) on a beam (4) erected above a pond (2) and permitting application of vibration to said beam (4).
The water purifier according to any one of claims 1 to 7, further comprising (9). 9. The beam receiving device according to claim 6, wherein
The water purification apparatus according to claim 8, wherein the water purification device is constituted by an elastic body that elastically supports (4) above the pond (2). 10. The lower end of the support member 5 has a pond 2.
The water purification device according to any one of claims 1 to 9, wherein the water purification device is connected to a connection member 12 that is installed substantially horizontally in the inside.