JPH11221405A - Overflow barrage apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make an overflow barrage apparatus provided with a wastewater route comprising an overflow barrage capable of responding to fluctuation of water level and recovering water with high clarity and releasing the water to a river or the like by supporting a wastewater flow route in a manner that the height of the route is made adjustable. SOLUTION: A rectangular movable flange 13 provided with a long hole as to be movable up and down is formed in the right end part of a wastewater flow route 9 equipped with an overflow barrage part 10. The movable flange 13 is so fixed as to be movable up and down by fitting a bolt 4... in the long hole and fastening a nut 14... in the bolt 4.... Either right and left paired or one L-shaped adjustment reception plate 16 is projected from the rear side of the upper part of a fixed flange 3 and, on the other hand, a fixing nut 17 is fixed in the upper part of the movable flange 13 side. Adjusting axes 18 screwed into the fixing nut 17 are extended respectively upward through the hole of the adjustment reception plate 16 and adjustment nuts 19 are installed in the adjustment axes 18.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an overflow weir device for inducing and discharging clear water from near the surface of a treatment pond such as a settling pond.

[0002]

2. Description of the Related Art In a sedimentation basin, for example, sludge is settled from introduced sewage while floating scum is removed. On the downstream side, an overflow weir device is formed, and clarified water is passed through the device. Is derived and derived.

[0003]

However, since the overflow weir device is set at a constant height, there is a disadvantage that it is impossible to cope with a subsequent fluctuation in water level. On the other hand, conventional overflow weir devices were configured so that the clear water of the treatment pond flows directly over the overflow weir,
The clarity of the clarified water to be attracted / derived was still low, and it was not always suitable for returning to rivers.

The present invention has been made in order to solve the above-mentioned problems, and has a structure capable of coping with fluctuations in water level, and has a structure capable of recovering highly purified water and discharging it to rivers and the like. It is an object to provide a weir device.

[0005]

According to a first aspect of the present invention, there is provided a drainage channel having an overflow weir installed in a treatment pond such as a sedimentation pond and connected to a next drainage passage. In the overflow weir device, the drainage channel is supported so as to be adjustable in height.

According to a second aspect of the present invention, in the first aspect, the overflow weir and the drainage channel are integrally formed.

According to a third aspect of the present invention, there is provided an overflow weir device provided with a drainage channel with an overflow weir installed in a treatment pond such as a sedimentation pond and connected to a next drainage passage. Is characterized by being equipped with a baffle.

According to a fourth aspect of the present invention, in the third aspect, a water purification means is provided between the baffle and the drainage channel.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to preferred embodiments. FIG. 1 and FIG. 2 show an embodiment of the present invention, which is an embodiment of a rectangular or first settling tank. In the embodiment, reference numeral 1 denotes an end wall of a sedimentation basin, and a drain communication pipe 2 serving as a drain communication passage is inserted and fixed to the end wall 1. The drain communication pipes 2 are arranged in a plurality of rows in directions corresponding to the left and right in FIG.

A fixing flange 3 is fixed to an end of the drainage communication pipe 2 corresponding to the inside of the sedimentation basin, and a plurality of bolts 4 which are one of fasteners are fixed to the flange 3 by welding or the like. I have.

One or a plurality of support beams 6 are provided horizontally in the width direction of the sedimentation basin. 7 is suspended and supported. It is preferable that the fastener 7 allow the stay 8 to be vertically adjusted, such as a U-bolt. The drainage channel 9 has a square gutter shape and is formed of a stainless steel plate, a copper plate, a plastic plate, or the like.
0 are integrally formed. Drainage channel 9 and overflow weir 10
Is the main body 11 here. The overflow weir 10 may be separate. The drain end 9 at the left end in FIG. 1 is closed as usual. The stay 8 may be arranged on the left side of FIG.

At the right end of FIG. 1 of the drainage channel 9 with the overflow weir 10, there is provided a rectangular movable flange 13 having a long hole 12 so as to be vertically adjustable as shown in FIG. The movable flange 13 is fixed to be vertically adjustable by making the elongated holes 12 correspond to the bolts 4 and fixing the nuts 14.

From the upper back side of the fixed flange 3,
A pair or one L-shaped adjustment receiving plate 16 is protruded, and a fixed nut 17 is fixed to an upper portion on the movable flange 13 side. The adjusting shafts 18 screwed into the fixing nuts 17 respectively extend upward through the holes of the adjusting receiving plate 16, and are provided with an adjusting nut 19 on the coaxial 18.

Reference numeral 21 denotes a water surface. When the water surface 21 is displaced after the overflow weir device is installed, the nuts 14 are loosened and the adjustment nut 19 is turned to turn the movable flange 1.
The height of the overflow weir 10 can be suitably adjusted with respect to the water surface 21 by adjusting the height of the drainage channel 9 with the overflow weir 10 via 3.

FIG. 3 shows another embodiment. The main body 11 of the overflow weir device has an integral structure similar to that of the above embodiment. A conventional one made of concrete may be used. On both outer sides of the main body 11, vertically oriented baffles 23 are arranged facing each other at a constant distance. Between the main body 11 and each baffle 23, a water purifying means 24 is exchangeably filled. The water purification means 24 may be further provided below. These water purification means 24 appropriately select activated carbon, barley stone, porous ceramic and the like. Incidentally, the water purification means 24 is designed to be put in a storage part 25 such as a net or a perforated plate. The water purification means 24 may be further configured like a virtual line.

FIG. 4 shows another embodiment. This body 27
Is provided integrally with concrete on the side wall of the sedimentation basin and has a separate overflow weir 28. A baffle 29 is provided outside the main body 27, and a water purification means 24 is provided between the baffle 29 and the main body 27.
5 is also freely replaceable. In this case, the main body 27 may be an integrated main body shown in FIGS.

FIG. 5 shows another embodiment. Body 3 in the same figure
Numeral 1 is provided on the right side of the integrated main body 27 shown in FIG. 4, and also in this case, the water purification means 24 is provided in the baffle 29. Below this, a water purification means 24 is additionally provided.

FIG. 6 shows another embodiment. In this embodiment, a cleaning device 38 for cleaning the outer surfaces of a drainage channel portion 36 and an overflow weir portion 37, which are the outer surfaces of an integrated main body 35, is provided so as to be able to reciprocate. 39
Are driven by a driving source (also capable of solar driving) provided through a chain 40. The running wheels 41 move back and forth along the bottom upper surface of the main body 35. The running wheels 41 are arranged back and forth. Aircraft 3
A brush mounting plate 42 extends from 9, and a brush 43 provided on the mounting plate 42 comes into contact with the outer surface.
The brush 43 is provided so as to extend forward and backward. The brush 43 may clean the inside of the main body 35. Further, since such a cleaning device 38 travels, the stay 44 of the main body 35 is mounted so as to rotate around the bottom surface of the main body 35. In addition, the cleaning device 38 may be reciprocated by a column 45 linked to a sludge scraping device that can move forward and backward at the bottom of the sedimentation basin, as shown by a virtual line, in addition to the self-propelled type as described above. The brush 43 may be reciprocated manually. In addition, as shown by a virtual line, the drainage channel portion 36 may be formed to be bent outward.

[0019]

As described above, the present invention has a structure capable of coping with fluctuations in water level and an overflow weir device capable of collecting highly clear water and discharging it to rivers and the like. Can be provided.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is a longitudinal sectional view showing another embodiment.

FIG. 4 is a longitudinal sectional view showing another embodiment.

FIG. 5 is a longitudinal sectional view showing another embodiment.

FIG. 6 is a longitudinal sectional view showing another embodiment.

[Explanation of symbols]

2 ... drainage communication pipe 9, 36 ... drainage channel 10, 37 ... overflow weir 11, 35 ... main body 21 ... water surface 24 ... water purification means 23, 29 ... baffle.

Claims (4)

[Claims] 1. An overflow weir device provided with a drainage channel with an overflow weir installed in a treatment pond such as a sedimentation pond and connected to the next drainage communication passage, wherein the drainage channel is supported so as to be adjustable in height. An overflow weir device characterized by the above-mentioned. 2. The overflow weir device according to claim 1, wherein the overflow weir and the drainage channel are integrally formed. 3. An overflow weir device provided with a drainage channel with an overflow weir installed in a treatment pond such as a sedimentation pond and connected to the next drainage communication passage, wherein a baffle is provided outside the overflow weir. An overflow weir device. 4. The overflow weir device according to claim 3, wherein a water purification means is provided between the baffle and the drainage channel.