JP2598330Y2 - Scum removal device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scum removing device. [0002] In equipment for purifying water, for example, in the first or final settling basin, a large amount of scum stays in a floating state on the water surface, but these scums are unnecessary. The scum is removed from the pond by a scum remover. In the past, scum was removed manually or electrically by a rotary trough, but this operation was difficult, costly, and scum could be effectively eliminated. could not. The Applicant has developed an automated device that performs this removal in relation to the movement of the flight in the pond. this
The device comprises a trough with a weir on the water surface. Trough is one
There is an opening in the part, and this opening is lower than the water surface of the treatment pond
Thus, it is fixed and installed in the treatment pond. Weirs themselves
A hollow float is used to have a floating function.
Is installed at the front side of the opening side of
It is said. To make the sinking movement of the ups and downs of the weir,
The arm can be supported at the center of rotation parallel to the longitudinal direction of the weir
Arm, which is one side of the arm
By providing a cam, it is possible to
As well as the other side of the arm
An arm is connected to a weir in a responsive manner.
You. This is a pond drive system constructed on the water surface of the treatment pond.
However, in this case, one end of the flight
With a tucker, kick the cam that opposes the track
So that the weir is pushed down and sunk
I have to. In addition, weirs have their own buoyancy, cams and swinging
Use the return force of its own weight
ing. The scum is blocked by the raised weir
become. [0003] By the way, said Ikegami drive
In some cases, use a pond bottom drive method in addition to the power method
There is also. In the case of the pond bottom drive system, the flight has fallen below
Set a cam on the bottom of the pond so that you can kick it up sometimes
Structured to transmit to the swing arm also provided at the bottom of the pond
And a vertical rod from the swing arm.
, But in this case,
As with the Ikegami drive system, an attach
Have a car and fly to counter the attacker
Position the cam on the side of the track
It is also conceivable. But this kind, scum removal device
Circulates the flight as described above to scrape the sludge at the bottom of the pond.
Post-construction with the existing flight-type sludge scraping device approaching
In this case, the attack is attached to one end of the flight.
When the car is added, it will be close to the pond side wall to some extent
Attacker on the side wall
Will be moving very close, which by design
It is not only difficult, but also unfavorable
No. In particular, the chains that drive the flights are slightly meandering
Exercise is inevitable, and that is why
Retrofitting the car itself may cause contact with the side wall
This is undesirable. Meanwhile, flight
With an attacker on one end of the
Can not be too large, the attacker
So that it does not lose contact with the cam that opposes
Perhaps there was no need to go. The present invention has been made to solve such a problem, and the subject thereof is to actuate a weir in a pond bottom drive system.
The mechanism is that the flight type sludge scraper is already installed
Scum removal device that operates reliably and reasonably
The purpose is to provide. [0004] In order to solve the above-mentioned problems, the invention according to claim 1 is provided with an inlet which is lower than the water surface of the treatment pond, and is fixedly installed in the pond with both ends supported. A trough, a weir whose long part is the same as the trough, and whose upper part can be raised and lowered at the front side of the trough at the boundary of the water surface, and a weir circulating below the flight side that circulates in the pond.
It has a cam that can be kicked up during
In response to the kicking-up operation of the dam, a rotation parallel to the longitudinal direction of the weir
Oscillating arm having a push-down arm that oscillates through the center of rotation
And the lower end is connected to the pressing arm, and the upper is
As one member of the transmission mechanism for responding the weir
A scum removing device having a lifting rod extending to
Therefore, the cam of the swinging arm is
On a pair of left and right guide rails for guiding
One that is located on a plane so that it is near one of the guide rails
On the other hand, the flight has a longitudinal direction corresponding to the cam.
An attacker is provided at the position, and the attacker
The lifting rod is projected upward from the upper surface of the light.
Is on the side of the orbit where the flight descends from above
Characterized in that it passes through a position deviated from Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments. 1 to 3
1 shows an embodiment of the present invention. In this embodiment, the sedimentation basin (treatment pond) has a rectangular shape whose plane shape is long in one direction, and is generally called a rectangular sedimentation basin. The sedimentation basin is located in the first-floor tank 1, in which a scum removing device A is installed. A water surface 3 is set in the first floor tank 1, and a chain 5 having a plurality of flights 4 arranged below the water surface 3 is provided so as to be driven in the direction of the arrow. One or two (and more if necessary) of the flights 4 are provided with a roller type attacker 7 via a roller bracket 6 so as to protrude upward. This attacker 7
Are left and right when viewed from above, not one end in the longitudinal direction of flight 4
One guide rail between a pair of guide rails 8
It is located close to 8. Numeral 9 is a trough-shaped trough, which is formed by a part of a cylinder as shown in FIG. 3 and is fixedly installed over the entire width of the pond. The upper portion of both ends in the circumferential direction of the trough 9 is an inlet. Both ends of the trough 9 in the longitudinal direction are connected to pipes penetrating and fixed to the side walls 11 and 11 of the pond, and the scum attracted into the trough 9 is guided to the outside through these pipes. I have. Reference numerals 10 and 10 denote belt-like guides attached to the upstream side and the downstream side of the trough 9 and formed of a rubber plate. Both ends of the guide 10 are perpendicular to the trough 9 at both ends of the trough 9 and slightly inside. It is sealed by side seal rubbers 12 protruding from the trough 9 in a shape like a circle.
The side seal rubber 12 includes a portion formed in a curved plate shape when viewed from above, and the portion is a flexible portion. The guide 10 has a trough 9 with one side as a base.
And the other side is protruded forward and upward from the trough 9 as a tip, and the protruding angle is 3 degrees with respect to the water surface in a natural state.
It is about 5 degrees. The weir 13 is attached so as to be located forward through the tip of the guide 10. The weir 13 is made of stainless steel having a hollow shape and an upper part having a mountain-shaped cross section. The front part of the upper part is inclined forward and downward, but the rear part of the upper part is also inclined backward and continuous with the surface of the guide 10. Inclined surface (approximately 35 degrees). Reference numeral 14 denotes a cable end connection pipe, which is attached to the weirs 13. On the other hand, a swing arm 15 is attached to the side wall 11 of the first floor tank 1 so as to be located upstream of the trough 9 and above and below the chain 5. A cam mounting arm portion 15a, which is one end of the swing arm 15, extends toward the upstream side, and a pressing arm portion 15b, which is the other arm, extends toward the downstream side. The cam mounting arm 15a is located closer to the inside of the pond than the side wall 11, and the pressing arm 15b is located closer to the side wall 11 than the cam mounting arm 15a. The arms 15a and 15b are eccentrically arranged. . A cam 19 is mounted on the cam mounting arm 15a via a long hole 18 with a bolt so as to be vertically adjustable. Normally, the bolt is located at an intermediate height between the long holes 18..., But is adjusted up and down as necessary. The cam 19 has a first cam 19a and a second cam 19c protruding downward on the lower surface thereof, and has a horizontal recess 19b therebetween. When the attacker 7 hits the first cam 19a, the swing arm 15
One end 15a is lifted, the other end 15b is lowered, and the lifting rod 20 is lowered. As a result, the weir 13 is greatly lowered through the cable 21, and even a large scum is attracted into the trough 9. When the attacker 7 corresponds to the dent 19b, the weir 13 slightly floats but still slightly sinks. Since the dimension between the water surface 3 and the upper end of the trough 9 becomes smaller, the flow velocity on the water surface 3 increases,
Attract the scum far from the trough 9 to the trough 9. And the second cam 1
When the attacker 7 hits the cuff 9c, the weir 13 lowers again greatly, whereby the sucked scum is attracted into the trough 9 regardless of the size. Thus, scum is smoothly and reliably removed regardless of the size. In addition, in this embodiment, both ends of the weir 13 and the guide 10 are sealed by a side seal rubber 12 projecting from the trough 9 orthogonally to the longitudinal direction of the trough 9 so as to maintain a watertight state. The seal rubber 12 includes a portion formed in a curved plate shape when viewed from above, and the portion is a flexible portion. The direction in which the flexible portion protrudes in a curved plate shape is the direction facing the side wall 11 of the treatment pond. Various methods are considered as means for linking the weir 13 from the swing arm 15. 1 and 2 are configured by combining a lifting rod 20 and a cable 21. That is, the rod guide 22 is provided on the side wall 11, and the elevating rod 20 that vertically moves up and down is provided on the rod guide 22. The lifting rod 20 is configured to always return upward by the return spring 23. The cable 21 includes an outer cable guide and an inner cable core. The cable guide is attached by cable supports 24 and 25. One end of the cable core passes through the guide to the upper end of the lifting rod 20 and the other end. Are attached to the cable end connection pipe 14. Therefore, when the lifting rod 20 moves up and down, the front and rear weirs 13 are similarly moved up and down by the cable 21. The lifting rod 20
Passes through the trajectory of flight 4 as can be seen in FIG.
Outside the orbit at one end of flight 4
It is arranged to pass up and down. Since the present invention is configured as described above, the mechanism for responding to the weir in the pond bottom drive system is provided by a fan.
Even if the light type sludge scraper is already installed,
To provide a scum removal device that operates reliably
Can be .

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view showing an embodiment of the present invention. FIG. 2 is a longitudinal sectional view of FIG. FIG. 3 is a sectional view taken along line III-III of FIG. 1; [Description of Signs] A: Scum removal device 3: Water surface 4: Flight 7: A
Tucker 8 ... Guide rail 9 ... Trough 11 ... Side wall 13 ... Weir 15 ... Swing arm 15a ... Cam mounting arm 15b ... Pressing arm 19 ... Cam 20 ... Ascending
Descending rod .

Claims (1)

(57) [Rules for requesting registration of utility model] A trough which is provided with an induction port lower than the water surface of the treatment pond and is fixedly installed at both ends in the pond, and a long member similar to the trough, the upper part of which is raised and lowered on the front side of the trough at the water surface. Possible weir and circulation movement in the pond
Kicked up during the downward circulation
With a cam that moves
Swings through a center of rotation parallel to the longitudinal direction of the weir
A swing arm having a pressing arm portion, and the pressing arm portion
The lower end is connected to the upper part and the upper part is a transmission for operating the weir.
Lifting rod extending upward as one member of the delivery mechanism
A scum removing device comprising:
The cam is on the left to guide the flight
Near one guide rail in a pair of right guide rails
, While the flight has
An attacker is provided at a longitudinal position corresponding to the cam.
The attacker is facing upwards from the top of the flight
The lifting rod is raised from above the flight
Pass through a position off the side of the orbit
Scum removing apparatus characterized by being.