JP2563911Y2 - Shower for scum remover - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shower device for a scum removing device.

[0002]

2. Description of the Related Art In a first or final sedimentation basin, a large amount of scum accumulates on the water surface, and it is necessary to efficiently remove the scum. In order to remove these scums, the applicant has previously proposed the following scum removal device. 13 and 14 show the scum removing device S proposed by the present inventors earlier. In the rectangular sedimentation pond provided with this device, a plurality of (four) sprocket shafts 200 whose axes are directed in the width direction of the pond, and two sprockets 201 mounted around each shaft 200, Two chains 202 are provided on the left and right endlessly hung through these sprockets 201.

The apparatus is driven by using some or all of the flights 203 attached to a chain 202 to attract and remove scum (floating matter) on the water surface. I have. The scum removing device includes a trough 205, a guide support sheet 206, a weir 208, and a transmission mechanism 209. The trough 205 has a gutter-like shape having an open upper part and a part of the front part of the square cross-sectional shape, and is fixed in the pond so that the longitudinal direction thereof is oriented in the width direction of the pond.

The guide support sheet 206 is made of a rubber-like material having a long band shape like the trough 205. The guide support sheet 206 is attached to the front side of the trough 205 in a projecting manner so that it can be bent up and down by elastic deformation. . Weir 20
Numeral 8 is a substantially triangular hollow elongated member which may be filled with a foaming material.
Is mounted in an overhanging manner on the front side of the elastically deformable guide support sheet 206, and is provided so as to move up and down on the water surface 207 while being supported by the sheet 206.

A response mechanism 209 swings the weir 208 up and down. The response mechanism 209 includes a rotating shaft 210,
A drive arm 211 is provided. The rotating shaft 210 spans the width of the pond, and the drive arm 211
Is a single arm extending forward from one side. A cam plate 213 is provided at the tip of the drive arm 211. The cam plate 213 has a cam surface on the bottom, and the cam surface is a continuous cam surface including two protrusions 213a and 213c and a recess 213b therebetween. By moving the cam plate 213, the drive arm 211 and the operation arm 212 are linked, and the rod 224 and the link arm 2
Rollers 214 projecting from one end of the flight (moving member) 203 push down the weir 207 or the like via the 25. This roller 214 is used for the flight 20
3 is attached by a bracket provided at one end on the cam plate 213 side.

[0006] The operating arm 212 constitutes a transmission mechanism together with the rod 224 and the interlocking arm 225, and is an arm extending in the direction of the trough 205 opposite to the drive arm 211, and has two right and left arms. .

[0007] The scum removing device S operates as follows. When a motor on a pond (not shown) is driven, the chain 202 is driven, and the flights 203... Arranged at regular intervals on the outer periphery thereof are circulated at a very low speed in the direction of the arrow. The flights 203 ... draw sludge settled at the bottom of the pond and guide the sludge into the pit, and the led sludge is removed from the pond by a pump (not shown). The upward flight 203 is such that the cam plate 213 is pushed up by the roller 214 attached to the side.

The roller 214 moves the member 213 up and down while contacting the copying member 213 in the order of the protrusion 213a → the recess 213b → the protrusion 213c. This allows
When the roller 214 hits the projection 213a of the first stage, the cam plate 213 and the drive arm 211 are pushed up greatly, and the operation arm 212 is pushed down, and the weir 208 is pushed down below the water surface through the rod 224 and the interlocking arm 225. At this time, the scum on the surface of the water, whether large or small,
After being guided inside, it is excluded outside the trough 205.

When the roller 214 comes to the recess 213b, the cam plate 213 and the drive arm 211 are temporarily lowered, and the operation arm 212 is raised. Thereby, the weir 20
8 rises slightly and its upper end comes below the water surface, so that the amount of water up to that point is reduced. Since the amount of water decreases, but the water speed increases, the suction force on the scum acts even on the scum on a distant water surface, and the water smoothly draws near the trough.

The roller 214 has a second-stage protrusion 213c.
Then, the drive arm 211 with the cam plate 213 is raised again, and the operation arm 212 is lowered. As a result, the weir 208 is lowered, and the drawn scum 204
Is guided into the trough 205 in a large amount. Since the cam plate 213 is stepped in this manner, the scum 2
The process from pulling in 04 to sucking it in is very effective.

Now, one scum removing device S is installed for each pond, and the troughs 205 are provided to be inclined in one direction.
Are connected by a communication trough. The scum and water flowing into the trough 205 installed at a high position in the inclination direction flow in the order of the communication trough → the next trough 205 → the other communication trough → the next trough 205. Further, the scum and water flowing into the illustrated middle trough 205 flow from the communication trough 230 on the lower side in the inclination direction to the next trough 205. These scum and water all flow to the lower side in the inclination direction and are discharged out of the pond. In addition, the communication trough is configured to penetrate a part of the pond side wall through a hole formed therethrough.

[0012]

The scum removal device S
Is configured to suction and remove scum by the floating movement of the weir 208.
In many cases, it is not smoothly guided in the direction of 5. Therefore, there is an apparatus in which a shower is sprayed in the direction of the trough 205 to effectively induce scum. However, the conventional shower device has a guide pipe to guide water from the main pipe to the nozzle in addition to the main pipe through which water always flows,
In addition, since the valve for controlling the flow of water is configured to be operated by a dedicated control system, the apparatus is structurally complicated and expensive, and is not suitable for implementation.

This invention has been made to solve such a problem, and it is an object of the invention to make it possible to manufacture an apparatus with a simple structure at a low cost.

[0014]

According to the present invention, a trough-shaped trough is fixed near the water surface of a treatment pond provided with a moving member with its front opening below the water surface. In the vicinity of the front opening of the trough, there is provided a weir for attracting or blocking scum floating on the water surface and floating on the water surface, and a rotary cylinder is provided in the treatment pond. A scum removal device that is horizontally mounted and has a drive arm that responds to the moving member and an operating arm that changes the movement of the drive arm into floating movement of the weir via the rotary tube. A shower device, comprising a valve that opens and closes in response to the moving member, and a nozzle that sprays a shower toward the water surface toward the trough, and when the valve is in a flowing state, at least The rotary cylinder Characterized in that it is configured to inject a shower from the nozzles through the internal space.

[0015]

As described above, the rotating cylinder is used as it is as one of the water induction systems, and the valve opening / closing means is
The structure is simpler because it is responsive to a member moving in the treatment pond, not a dedicated one.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the illustrated embodiments. 1 and 2 show an embodiment of the present invention. In this embodiment, 1 is a first or final sedimentation basin (treatment pond), and the pond 1 is rectangular when viewed from above,
Reference numeral 2 denotes the longitudinal side wall. A plurality of rotating shafts 3 and sprockets 4 are provided in the sedimentation basin 1, and two chains 5 are wrapped around the sprockets 4. A plurality of flights 6 are arranged at regular intervals. The flight 6 may be made of any material such as wood and plastic.

At the right end of the flight 6 in the traveling direction, a roller 9 is provided for the removing device via a bracket (not shown).

At a longitudinal end of the sedimentation basin 1, a trough 10 having a trough-like shape with a rectangular cross section is provided fixedly at right angles to the same length. The trough 10 is connected to and supported by flanges 10a, 11a by communicating troughs 11, 11 penetrating the inside of the side wall 2 and fixed by brackets.

The trough 10 has an opening at an upper side and an upper part at a front side, and has flanges 10a at both ends in the longitudinal direction.
A side plate 12 extending forward from is provided. The front opening is located below the water surface 15. A support shaft 14 slightly longer than the trough 10 is rotatably mounted between the side plates 12. The space between the support shaft 14 and the front wall 10b of the trough 10 is closed by a rubber seal 16.

A weir (float) 17 having a plate-shaped base and a triangular hollow cross-section at the front is fixed to the support shaft 14 so as to be rotatable. The weir 17 is a long one extending between both side plates 12, and a side seal 19 attached to a side end surface thereof slides on a side surface of the trough 10.
The weir 17 floats and sinks at the water surface 15 and attracts or blocks scum floating on the water surface. The support shaft 14 is reliably supported by a bearing (not shown) fixed to the trough 10.

On the other hand, the mechanism for moving the weir 17 up and down is configured as follows. First, the response mechanism 20 includes the rotating cylinder 2
1. A drive arm 22 is provided. The rotary cylinder 21 is stretched across the width of the pond, and the drive arm 22 is a single arm extending forward from one side of the rotary cylinder 21. A cam plate 23 is provided at the tip of the drive arm 22. The cam plate 23 has a cam surface at the bottom, and the cam surface
The projections 23a and 23c and the recess 23b between them form a continuous cam surface.

By moving the cam plate 23, the drive arm 22 is moved.
And interlocking the operating arm 24 and pushing down the weir 17 via the rod 25 and the interlocking arm 26,
The roller 9 protrudes from one end of the flight (moving member) 6. The roller 9 is attached by a bracket provided at one end of the flight 6 on the cam plate 23 side. The operating arm 24 includes a rod 25 and an interlocking arm 26.
Together with a transmission mechanism, the arm extending in the direction of the trough 10 opposite to the drive arm 22,
There are two on the left and right.

On the treatment ponds 1, a main pipe 30 is laid so as to cross them. The pipe 30 is fixed on the side wall 102 by a bracket 31 by means of a flange connection, and is always supplied with water. The rotating cylinder 21 has an end portion made blind by a shaft, and a valve 32 is fixed on one end portion. This valve 32
A flexible first pipe 33 capable of changing the direction is connected between the first pipe 33 and the main pipe 30. A lever 34 extending downward from the valve 32 faces the roller 9.

The rotating cylinder 21 has three second pipes 35.
Are connected, and each second pipe 35 is flexible, and a nozzle 36 is attached to the end thereof. This nozzle 36
As shown in a preferred example in FIG. 5, the main body portion 3 having an open upper side and having a passage expanding toward the distal end.
6a and an upper plate 36b that covers the upper surface of the main body portion 36a so as to be elastically deformable. Foreign matter may be clogged in the nozzle 36. In this case, the upper plate 36b is deformed to escape, and pressure is applied from the rear to remove the foreign matter from the distal end opening. The pressing force of the upper plate 36b can be adjusted by a bolt 37.
An elastic member such as a spring may be interposed between the upper plate 36b and the upper plate 36b.

The supply water is always flowing through the main pipe 30, and this water reaches the valve 32 through the first pipe 33 of each pond. In each of the ponds, the same operation as described in the related art is performed. When the roller 9 kicks the lever 34, the valve 32 is opened, water is guided from the main pipe 30 to the rotary cylinder 21, and the shower is vigorously jetted from the distal end through a passage in the nozzles 36. Thus, the shower blows scum on the water surface in the direction of the trough 10 and these scums are effectively attracted when the weir 17 sinks below the water surface.

FIGS. 3 and 4 show another embodiment of the present invention. In this embodiment, the main pipe 30 of the above embodiment is omitted, and the rotary cylinder 21 is the main pipe. The rotating cylinders 21 are connected to each other by a flexible connection pipe 40 so that water is constantly supplied to the rotating cylinders 21, and the three pipes 41 are bent downward in a U-shape. It protrudes, and the nozzle 36 is attached to the tip. Each of the pipes 41 has a valve 3
2 are mounted, and these valves 32... Are opened and closed by a shaft 42. A lever 34 is attached to the shaft 42, and is adapted to respond to the trough 10 by the flight 6 and return by a spring.

The nozzles 36 are arranged so as to be shifted in a direction away from the trough 10 as compared with the above embodiment. It should be noted that, if the flight 6 is provided with a contact plate at a position corresponding to the lever 34, the flight 6 is resistant to wear. When the lever 34 is kicked by the flight 6, the valves 32 are opened through the shaft 42, water from the rotary cylinder 21 is supplied to the nozzle 36 through the pipes 41, and water is jetted forward.

FIGS. 6 and 7 show an embodiment which can be constructed even in a scum removing device driven at the bottom of a pond. In this embodiment, brackets 50, 50 are fixed on the rear portion of the trough 10, through which a main pipe 51 is passed and a common cylinder 52 is provided.
Are rotatably supported. From the common cylinder 52, three operation arms 53 project forward, and the right arm 53 is connected to a weir 55 by a rod 54.
Chain 57 between the tip of the pond and the drive arm 56 at the bottom of the pond.
Is connected. At the bottom of the pond, a drive arm 56 is supported by a bracket 58, and a cam plate 59 is attached to the tip thereof.

The cam plate 59 is kicked down by the rollers 61 of the flight 60 traveling at the bottom of the pond, and is lowered.
7 is reduced. When one operation arm 53 is pulled down, the weir 55 is pushed down below the water surface through the common cylinder 52 and the like. Also in this embodiment, the weir 55 is supported by the rotating shaft 62. When the roller 61 passes through the cam plate 59,
The chain 57 is lifted by the buoyancy of the weir 55 or the like (a balancer may be added), and the cam plate 59 returns to its original horizontal state.

The bracket 50 is provided with a first pipe 64 for supplying water from the main pipe 50 to each pond to the valve 63, while a second pipe 65 from the valve 63 is provided with a first pipe 64.
It is connected to a supply cylinder 66 laid horizontally on the pond. Supply cylinder 6
A flexible pipe 68 having a nozzle 67 is attached to 6. Then, the lever 69 from the valve 63 is actuated by one of the operating arms 53 and
Is opened and closed.

That is, when the operating arm 53 is lowered, the valve 63 is opened, and water is supplied in the order of the main pipe 51 → first pipe 64 → valve 63 → second pipe 65 → supply tube 66 → nozzle 67, Shower is sprayed from the water surface. When the operation arm 53 is raised, the valve 63 closes and the injection from the nozzle 67 stops.

FIGS. 8 and 9 show an embodiment in which the main pipe 51 is omitted and the common pipe 52 is shared as the main pipe. This further simplifies the structure.

FIGS. 10 and 11 show another embodiment, and show an example without a mechanism such as a drive arm or an operating arm.
In this embodiment, a rotary shaft 7 provided on a trough 70 is provided.
An inverted L-shaped arm 72 is attached to both ends of 1 and extends forward. At the end of the arm 72, a tank 73 having a triangular hollow shape, having a bottom and opening upward is attached.
The tank 73 has an overflow weir 74 at the upper end so that 80% of the supplied water flows out. An adjusting plate 7 for controlling the flow amount is provided on the oblique side surface of the tank 73.
5 is attached, and a gradient plate 76 for flowing the overflow in the direction of the trough 70 is attached to the lower side. On the lower side of the plate 76, a small hole 77 for discharging 20% of the supplied water is opened.

The structure for supplying water to the tank 73 is as follows. A main pipe 78 is passed through the pond and supplied from the pipe 78 through a valve 79. The lever 80 of the valve 79 is kicked by the roller 82 of the flight 81 and returned by a spring.

Water from the main pipe 78 is supplied into the tank 73 through the pipe 83 when the lever 80 is kicked and the valve 79 is opened. Although a small amount of water flows out through the small holes 77, the supply amount is larger, so that water accumulates in the tank 73 and the tank 73 comes down. Thereby, the tank 73 is lowered via the arm 72, the weir 84 is sunk, and the scum flows. Since the water in the tank 73 gradually flows out over the overflow weir 74, the water flows through the gradient plate 76, and the scum is flowed toward the trough 70. Of which
The lever 80 is returned, and the supply of water into the tank 73 stops. Then, water flows only through the small holes 77,
As a result of the decrease in the water in the tank 73, the buoyancy of the weir 84 and
The weir 84 and the tank 73 come to float, and the induction of scum stops.

In FIG. 12, a shower device 90 is arranged on the side of the pond, and a shower is obliquely sprayed in the direction of the trough 91 to prevent escape of scum from the side of the flight 92 to the rear. Showing things.

In the above-described embodiment, the member is configured to move the flight. For example, other moving members include a rotating shaft of a chain, a sprocket, a chain, and the like.

Since the present invention is configured as described above, the device can be manufactured at a low cost with a simple structure.

[Brief description of the drawings]

FIG. 1 is an overall plan view of an apparatus showing one embodiment of the present invention.

FIG. 2 is a longitudinal sectional view thereof.

FIG. 3 is a plan view showing another embodiment.

FIG. 4 is a side sectional view thereof.

FIG. 5 is a perspective view showing a specific example of a nozzle.

FIG. 6 is a plan view showing another embodiment.

FIG. 7 is a side sectional view thereof.

FIG. 8 is a plan view showing another embodiment.

FIG. 9 is a side sectional view thereof.

FIG. 10 is a plan view showing another embodiment.

FIG. 11 is a side sectional view thereof.

FIG. 12 is a plan view showing another embodiment.

FIG. 13 is a side sectional view showing an example of a conventional scum removing device.

FIG. 14 is a perspective view showing the response mechanism.

[Explanation of symbols]

 Reference Signs List 1 treatment pond (sedimentation pond) 6 60 member moving in treatment pond 10 trough 15 water surface 17 55 weir 21 rotating cylinder 22 drive arm 24 operating arm 32 63 valve

Claims (1)

(57) [Scope of request for utility model registration] 1. A trough-shaped trough is fixed near the water surface of a treatment pond provided with a moving member with its front opening below the water surface. A weir is provided for attracting or blocking the scum floating on the water surface into the trough, and a rotary cylinder is laid horizontally in the treatment pond, and the rotary cylinder performs the movement. A shower device for a scum remover, comprising: a drive arm responsive to a member; and an operating arm that changes the movement of the drive arm into a floating movement of a weir via the rotary cylinder. A valve that opens and closes,
A nozzle for injecting a shower toward the water surface toward the trough, wherein the shower is ejected from the nozzle through at least the internal space of the rotary cylinder when the valve is in a flowing state. Shower device for a scum removal device.