JP2528872Y2 - Scum removal device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a scum removing device.

[Conventional technology]

A large amount of scum accumulates on the water surface in the sedimentation basin, and various methods have been considered to remove the scum.

[Problems to be solved by the invention]

By the way, conventionally, since removal was performed by a mechanical type, there was a drawback that the structure was complicated, construction was difficult, and the cost was increased.

The present invention has been made to solve the above-mentioned problem, and has as its object to make the structure simple, easy to construct, and reduce the cost.

[Means for solving the problem]

In order to solve the above-mentioned problem, the present invention is directed to a scum removal device in which scum accumulated in a pond is introduced into a trough together with water over a weir that intrudes and emerges from the surface of the water and is discharged outside the pond. It is characterized by being made of a soft elastic, longitudinal material having a space and extending and contracting up and down, and a means for supplying a fluid is connected to the weir.

First Embodiment In this embodiment, as shown in FIGS. 1 and 2, communication pipes 3, 3 are inserted into both side walls 2, 2 of a pond 1. A trough 4 made of concrete (or sheet metal) is attached between these opposing surfaces while both ends are supported.
The trough 4 communicates with the communication pipes 3 and 3 and has a gutter-like shape having an open upper surface. The front part of the trough 4 is slightly thicker, and a groove 5 which is elongated in the longitudinal direction of the gutter is formed at the upper end thereof. A weir 10 is fitted into the groove 5.

The weir 10 is made of rubber and has a space 11 inside.
Its shape is a substantially U-shaped double structure in a restored natural state, and a protruding piece 12 is provided at the center.

The weir 10 is adapted to be supplied with a fluid such as air or water through a pipe 13 passed through a front portion of the trough 4 and to remove the fluid. A pump is connected to the pipe 13 via a control valve. In addition, weir
An opening 14 communicating with a pipe 13 is provided at the bottom of 10.

When fluid is sent from the pump through the pipe 13,
Fluid accumulates in the space 11, and the weir 10 gradually expands. Thereby, the weir 10 extends upward, and the protruding piece 12 at the upper end extends to a height above the water surface 6. When the protruding piece 12 extends, the attraction of the scum on the water surface 6 is restricted. On the other hand, when the fluid flows in the opposite direction, the fluid in the space 11 runs out and the weir 10
Is contracted, and the protruding piece 12 is also lowered to the state shown in FIG.
As a result, the entire weir 10 is lower than the water surface 6, and the scum on the water surface 6 is attracted into the trough 4 together with the water as shown by the arrow in FIG. Both ends 10a, 10a of the weir 10 are small, non-expanding and non-contracting projections. It is designed to prevent water from entering.

FIG. 3 shows that the insertion base 10b of the weir 10 is formed in a shape along the groove 5 and the side wall 2 when viewed from the front.
This prevents water from entering from the side. Although both ends of the weir 10 are fixed to the side wall 2, they may be left as they are.

Second Embodiment In this embodiment, as shown in FIG. 4, a U-shaped cover 20 is mounted on the weir 10 and the float 22 is mounted by bolts 21 and 21 thereof. The water surface 6 may be lower or higher, but when it is lower, the float 22 operates with the strokes shown in the drawing as lower limit I and upper limit II. However, when the water surface 6 becomes higher, the upper limit becomes II as shown in the figure, but the lower limit becomes II due to the buoyancy of the float 22.
Lower than III. When the water surface 6 is low and there is no fluid in the weir 10, the weir 10 is contracting low,
20 is lower than water level 6 and scum and water are trough 4
Flows into. When fluid is introduced into the weir 10, the cover 20
Is higher than the water surface 6 so that the cover 20 blocks scum and water. When the fluid level is raised and the fluid is introduced into the weir 10, the float 22 is located at the height of III,
The cover 20 blocks scum and water in the same manner. When the fluid in the weir 10 is drained, the weir 10 starts to contract, but the buoyancy of the float 22 acts, so that the contraction stops halfway, so that the cover 22 has an intermediate height as shown by a virtual line in the drawing. Stop at. As a result, when the water surface 6 is low or high, the height from the water surface 6 to the upper surface of the cover 20 is constant, and a constant amount of water in the upper layer always flows. Thereby, the amount of flowing water becomes constant, and the removal of scum becomes effective. The above-mentioned system is a water level tracking type.

Third Embodiment In this embodiment, as shown in FIG. 5, the cover 20 is pressed by a spring 25 from above.

[Fourth Embodiment] In this embodiment, as shown in FIG.
They are connected to each other in a stacked manner. The stroke is doubled by overlapping a plurality of stages in this manner.

[Fifth Embodiment] In this embodiment, as shown in FIGS. 7 and 8, the trough 30 has a U-shape in plan view and a weir 31 as shown in FIG. 1 is arranged along the front part thereof. It is. When the fluid from the pump 32 is sent through the valve 36, the weir 31 expands and the scum and water are stopped from flowing into the trough 30 as described above. 31 contracts to allow scum and water to flow into trough 30.

A pipe 33 passes over the pond, and branch pipes 34, 34 extend from the pipe 33. The tip of the branch pipe 34 is directed toward the trough 30, and scum is blown out to
It flows in 30 directions. A pipe 35 to which water is supplied faces the branch pipe 34, as shown in FIG.

[Effect of the invention]

The present invention is configured as described above, so that the structure is simple, the construction is simple, and the cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a first embodiment of the present invention, FIG. 2 is a plan view thereof, FIG. 3 is a front view showing a modification thereof, FIG. 5 is a sectional view showing a third embodiment, FIG. 6 is a sectional view showing a fourth embodiment, FIG. 7 is a plan view showing a fifth embodiment, and FIG. FIG. 4,31 trough, 6 water surface, 10,31 weir, 11 space, 13 pipe (means for supplying fluid)

Claims (1)

(57) [Scope of request for utility model registration] 1. A scum removing device for introducing scum accumulated in a pond into a trough together with water through a weir which rises and sinks at the surface of the water and removes the scum out of the pond. A scum removing device, which is made of a soft elastic longitudinal material which expands and contracts, and to which a means for supplying a fluid is connected.