JPS59112810A - Water algae cleaner for precipitation basin - Google Patents

Abstract

PURPOSE:To automatically clean the water algae in a precipitation basin while preventing the collision of a moving body and an obstacle such as the end part of a flooding weir, by controlling the rising and falling of a rotary brush corresponding to the running of the moving body running along the longitudinal direction of the flooding weir. CONSTITUTION:A rotary brush 25 is preset to a depth to be cleaned so as to counterbalance the upper and lower position of said brush and, after a stand 13 is run along rails 8, 9 and fixed in a non-runnable state by clamping a lock bolt, the rotary brush 25 is rotated to remove the water algae at the appropriate place of a precipitation basin 1. When the rotary brush 25 reaches a place slightly before an obstacle such as the extended end 3a of a trough 3 with the forward movement of a sludge collecting machine 6, the rotation of the rotary brush 25 is stopped while the brush 25 is raised to be forwardly moved without hindrance. In addition, the brush 25 is fallen and rotated by the return movement of the sludge collecting machine 6 to remove the water algae by the brush 25. As a result, the water algae in the precipitation basin 1 can be automatically cleaned while preventing the collision of the sludge collecting machine 6 with the obstacle.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a water algae cleaner for sedimentation ponds that uses rotating brushes to clean water rings and other dirt that adheres to overflow weirs as a moving body, particularly a sediment collecting machine, moves along an overflow weir. Regarding.

In general, when a water ring forms in a sedimentation tank at a sewage treatment plant and adheres to the wall, it causes changes such as interfering with water convection, leading to deterioration of water quality, and this causes mosquitoes to appear, resulting in sanitary problems. It was not desirable from a viewpoint, and it also had problems not only from the viewpoint of visitors but also from the aesthetic point of view, such as environmental conservation. For this reason, in order to solve this problem, the current situation has been to manually remove the water ring from time to time by washing it off.

Moreover, the width of the overflow weir is narrow, making it difficult to cross, and the sedimentation basin is very deep, making it dangerous, and the work requires a lot of time and effort, making it cumbersome. It had become a thing.

Therefore, in view of the above circumstances, the present invention removes water rings and other dirt that adheres to the inner and outer walls of the overflow weir as the movable body moves along the longitudinal direction of the overflow weir, and
It is also an object of the present invention to provide a water algae cleaner for a sedimentation basin in which a control circuit controls the elevation and descent of a rotating brush in response to the travel of a moving object, thereby preventing collisions with obstacles such as the end of an overflow weir. .

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the algae cleaner for sedimentation ponds according to the present invention will be described below with reference to the drawings. In Figure 1, 1 is the final settling tank for sewage treatment. The water to be treated that has passed through the aeration tank in the previous stage flows into this final settling tank 1. The treated water after sedimentation and separation overflows into a triangular overflow weir 4 provided at the top of a plurality of troughs 3 and is discharged.

Mutually opposing wall parts 2 of the final sedimentation tank 1, such as mud walls of runoff
A rail 5 is laid on the top surface, on which a mud sampling machine 6 always travels back and forth along the trough 3 at a predetermined speed.

As shown in FIG. 2, the trough 3 has an overflow plate 7 having a serrated upper part on the wall of the triangular overflow weir 4. On the other hand, the triangular overflow weir 4 provided on the wall of the final sedimentation basin is also provided with a similar overflow plate 7 as shown in FIG.

By the way, in the present invention, as shown in FIG. 1, a rail 8.9 is fixedly installed on one side of the mud collecting machine 6, and this rail 8.
A water source vacuum cleaner 12 is mounted movably along the line 9. This rail 8.9 is attached to the slurry collecting machine 6 via an arm 10.11 as shown in FIG. It has an appropriate number of freely rotatable running wheels 14, 14 mounted so as to sandwich the rail 8 from above and below, and is attached to an appropriate number of freely rotatable running wheels 14, 14 that are in contact with the upper back side of the rail 8 via an arm 19. Further, the pedestal 13 is provided with an appropriate number of rotatable running wheels 16 that contact the surface of one rail 9, and an appropriate number of rotatable press wheels 17 that contact the lower back side of the rail 9. A rail 8. is mounted on the upper surface of the pedestal 13 with each of the wheels 14-17.
9 (a pull handle 18 is fixedly installed, and a locking bolt 20 is screwed into an arm 19 fixedly installed at an appropriate location on the pedestal 13). When tightened, the tip comes into pressure contact with the rail 8, making it possible to fix the pedestal 13 at an appropriate position on the mud sampling machine 6 without being able to run.The pedestal 13 also has an appropriate number of bearings 21, 21... It has a rotating shaft 22 for the lifting mechanism supported by the rotating shaft 22, and a frame 23 is fixedly attached to the rotating shaft 22.The frame 23 has a rotating shaft 22 for driving a brush that can rotate in forward and reverse directions and can be changed in speed. A geared motor 24 and a rotating brush 25 rotationally driven by the brush driving geared motor 24 are installed.In this case, as shown in FIGS. 4 to 6, the rotating shaft 24 of the brush driving geared motor 24 One end of a cylindrical body 27 having a cut groove 26 is inserted into H, a bolt 28 is inserted through the rotating shaft 24a and the cylindrical body 27, and a nut 29 is screwed onto this bolt 28 so that it can be attached and detached at any time. Further, the rotating shaft 25a of the rotating brush 25 is inserted into the cylinder body 27, and the bolt 30
By tightening, the width of the cut groove 26 becomes narrower and the groove 26 is clamped and fixed. When replacing the rotating brush 25, etc., the bolt 30 can be loosened to allow it to be removed from the cylindrical body 27. On the other hand, the elevating mechanism 31 of the rotating brush 25
As shown in FIGS. 4 and 5, a bevel gear 32 is fixed to one end side of the rotating shaft 22 for the lifting mechanism, and a bevel gear 33 that meshes with the bevel gear 32 is a geared motor with a lifting brake that can rotate forward and backward. 34 rotation shaft 34a. Further, cams 35, 36 for upper and lower limits are fixed to the other end of the rotating shaft 22 for the lifting mechanism, and these cams 35, 36 are attached to the rotating shaft 22 as shown in FIGS. 4 and 7. As it rotates, upper and lower limit switches LU and LD are operated, respectively. Each of the above motors 24, 34 and IJ Mitswitches LU, LD
is connected to a plug 38 via a terminal box 37. This plug 38 is connected to an outlet installed at an appropriate location such as one end side, both ends, or even the center of the mud collecting machine 6. In this case, the terminal box 37 and the plug 38 are connected to each other. The location or number of outlets may be determined so that the length of the cord between them is about half of the total length of the mud collecting machine 6. This outlet is connected to a sequence control circuit box whose circuit is mainly composed of relays as shown in FIG. Further, as shown in Fig. 1, the trough 3 extends from one side of the final sedimentation tank 1 toward the other side wall to about several meters in front of the other side wall.
A rotating brush 25 is installed on the end wall of the triangular overflow weir 4 including the overflow plate 7.
In order to prevent collisions, three detection arms 4o are attached to the wall 2 of the final sedimentation tank 1 corresponding to this extended end, and on the other hand, the sludge sampler 6 is equipped with detection arms 39 and 40. It has limit switches LSI to LS4 for confirming raising and for starting raising and lowering, which are brought into contact and operated, respectively. These limit switches LSI-L and S4 are incorporated into a control circuit as shown in FIG. Furthermore, Figures 4 and 5
In the figure, 41 is a rainproof cover.

Therefore, based on the control circuit shown in FIG.
To explain the second control operation, in advance, the rotating shaft 25a of the rotating brush 25 is adjusted so that the vertical position of the rotating brush 25 matches the cleaning depth to be cleaned.
Adjust the fitting state between the frame 13 and the cylinder body 27 (at the same time, after running the frame 13 along the rails 8 and 9, tighten the locking bolt 20 to fix it so that it cannot run. The rotary brush 25 is rotated to remove water rings, etc. from the inner and outer walls and upper surfaces of the trough 3, the inner and outer surfaces of the overflow plate 7, and other appropriate locations of the sedimentation tank 1, as shown in FIGS. 2 and 3. In this case, the rotational direction and rotational speed of the rotating brush 25 may be appropriately selected depending on the location to be cleaned, the traveling direction of the mud collecting machine 6, and other conditions.For example, the triangular overflow weir 4 or the overflow plate 7
When cleaning the inner surface of the sludge collector 6, the rotary brush 25 is used to clean the inner surface from one side toward the extending end 3a as the sludge collecting machine 6 moves.

In this state, in the control circuit of FIG. 8, if automatic control is performed by turning on the automatic switch A, the rotating brush 25 is at the lower limit position and the lower limit switch LD is in the closed state, Along with this, relay L is energized and its contact L-1 is closed, and since the limit switches LSI and LS3 are opened, relay contacts MLI-1, ML, and 3-1 are closed. Since relay M2 is deenergized in the open state, its relay contact M2
-1 is closed. Therefore, the indicator lamp R indicating the cleaning state lights up, and the relay RD is energized, and the contact of the relay RD (not shown) in the drive circuit of the brush drive geared motor 24 is closed, and the brush drive geared motor 24 is is in a rotating state. Next, as the mud collecting machine 6 moves forward and reaches the extended end 3a or the front of the trough 3, the lifting start limit switch LSI comes into contact with the detection arm 39 and is activated. Then, relay MLI is energized and its relay contact MLI-1 is closed.

At this time, since the rotating brush 25 is at the lower limit position, the upper limit switch LU is in the open state, and the relay H
is deenergized, so its relay contact H-1 is closed. Therefore, the closing operation of the relay contact MLI-1 energizes the relay M2, which closes the relay contact M2-2, causing the relay M2 to self-hold, and the relay contact M2-1 to open. Release indicator lamp R
At the same time as the light goes out, the relay RD is deenergized and the contacts of the relay RD included in the drive circuit are opened, and the rotation of the brush drive geared motor 24, that is, the rotating brush 25 is stopped.

Further, contact M2-3 of relay M2 is also closed, and since contact H-2 of relay H and contact MD-2 of relay MD, which will be described later, are each in a closed state, relay MU is energized. As a result, the so-called self-holding contact of relay contact MU-1 closes, and the safety contact MU-2 inserted in series with relay MD opens and opens. A contact point of a relay MU (not shown) which is made inoperable and inserted into the drive circuit of the geared motor 34 with a lifting brake is closed, and the geared motor 34 with a lifting brake is rotationally driven. Therefore, the rotating shaft 22 for the elevating mechanism rotates, and as shown in FIG. 9, the mounting frame 23 rotates and the rotating brush 25 rises. As the lower limit IJ switch LD opens, the relay RD is not energized due to the self-holding of the relay M2 and the opening of the relay contact L-1.
5 is not rotationally driven by the geared motor 24 for driving the brush. Further, since the relay MU is also self-held, the rotating brush 25 continues to rise. When the rotating brush 25 rotates to a predetermined angle and rises, the upper limit switch LU performs an opening operation and the relay H performs an energizing operation. This operation opens the relay contact H-2, deenergizing the relay MU, and accordingly, the contact of the relay MU in the drive circuit of the geared motor 34 with a lifting brake also opens, so the geared motor 34 The rotational drive of the rotating brush 25 is stopped and the lifting of the rotating brush 25 is completed. At the upper limit position of the rotating brush 25, the relay contact H-1 is opened and the relay M2 is deenergized, but since the relay contact ζL-1 is in the open state, the relay RD is not energized ( The stopped state of the brush drive geared motor 24 is maintained.

Next, when the limit switch LS2 for confirming lifting comes into contact with the detection arm 39 and operates as the mud collecting machine 6 moves forward, the relay ML2 is energized, and the relay contact ML2-1 is accordingly closed. make a successful move. This relay contact ML
Contact H-3 of relay H connected in series to 2-1
Since the rotating brush 25 reaches the upper limit position and closes the upper limit switch LU as described above, it is in the open state due to the energizing operation of the relay H. Therefore relay MX
2 is not energized, its relay contacts MX2-1, MX2-
2 is not closed, so the relay M (not shown) attached to the control circuit 42 of the sludge collecting machine 6
Since the contact point X does not operate, the mud collecting machine 6 continues to move forward. In this case, since the rotary brush 25 of the mud collector 6 has been raised to the upper limit position as described above, the extending end of the trough 3
It does not collide with a and remains a hindrance (moves forward).

When the mud collecting machine 6 moves forward to the end of the final sedimentation tank 1, it is caused to move backward by the control circuit 42. When the mud collecting machine 6 reaches a position slightly before the extending end 3a due to this backward movement, the lifting confirmation limit switch LS3 comes into contact with the detection arm 40 and performs a closing operation. At this time, the rotating brush 25 is at the upper limit position, and the relay H is energized by the upper limit IJ Mitswitch LU, and the relay contact H-4 is open, so the relay M
Since L3 is not energized and relay contact H-3 is also in an open state, relay MX2 is not energized. Therefore, since the relay contact MX2-1 does not close, the relay MX is not energized, and the contact of the relay MX included in the control circuit 42 maintains the closed state, and as a result, the sludge collecting machine 6 is restarted without stopping. move. When the limit switch LS4 for starting lowering comes into contact with the detection arm 4o as a result of this return movement, the limit switch LS4 is closed, and at this time, the rotary brush 25 is at the upper limit position, and the relay H causes its contact H- 5 is closed, relay ML4 is energized and its contact ML4-1 is closed. On the other hand, since the relay L is not energized, its contact L-2 is in a closed state, so that the relay M1 is energized as the relay contact ML 4-1 is closed. This bias closes the relay contact M1-1, causing the relay M1 to hold itself, and the relay contact M1-2 also performs a closing operation. This relay contact Ml-
Relay contact L-3, MU- connected in series to 2
Since relay MD 2 is in the closed state, relay MD is energized, and its relay contact MD-1 is closed to make relay MD self-holding, and the safety relay contact MD-2 is connected to relay M.
U is inoperably separated. Simultaneously with this operation, the contacts of a relay MD (not shown) included in the drive circuit of the geared motor 34 with a brake for lifting are also closed to rotate the geared motor 34, thereby moving the rotating brush 25 toward the lower limit position. descend to. Although the relay H is deenergized by this lowering operation, the rotary brush 25 continues to be lowered by the geared motor 34 until it reaches the lower limit position. When the lower limit position is reached, the lower limit switch LD closes and energizes the relay L, which opens and separates not only the relay contact L-2 but also the relay contact L-3, turning off the relay MD. As a result, the rotational drive of the geared motor 34 with a lift brake is stopped.

At the same time, relay contact L-1 closes and energizes relay RD, which causes brush drive geared motor 24
The rotary brush 2 is driven to rotate as the mud collecting machine 6 moves back.
In step 5, remove the water ring.

The above operations are sequentially repeated as the mud collecting machine 6 travels back and forth.

In addition, as mentioned above, when the limit switch LSI and LS2 perform the control operation due to the forward movement of the mud collecting machine 6, the limit switch L is activated.
S3 and LS4 also perform a closing operation, but this does not affect the control operation by limit switches LSI and LS2. Similarly, the limit switches LSI and LS2 are not affected by the closing operation of the limit switches LSI and LS2.

By the way, during the forward movement of the mud collecting machine 6, even if the lifting start limit switch LSI comes into contact with the detection arm 39, the rotating brush 25 may not rise due to some reason, such as the geared motor 34 with a lifting brake not rotating. It may become impossible to do so, or the lifting operation may stop midway through without reaching the upper limit position. For confirmation of raising in this condition! When LS2 comes into contact with detection arm 39 and limit switch LS2 is closed, relay ML2 is energized, not only relay contact ML2-1 is closed but also rotating brush 25 is activated. Since the upper limit position has not been reached, relay contact H-3 remains closed, and as a result, relay M
X2 is energized and its relay contact MX2-1 is closed, so that the relay MX is energized, and the operation of the contact of the relay MX (not shown) included in the control circuit 42 causes the sludge collecting machine 6 to move forward. At the same time as the stop, relay contact MX 2-2 is closed and failure indicator lamp F lights up. In this case, relay M2
It goes without saying that since relay contact M2-1 is opened and relay RD is deenergized, rotation of rotating brush 25 is stopped.

Furthermore, if the rotary brush 25 is not at the upper limit position for some reason during the return movement of the mud collecting machine 6, the limit switch LS3 for confirming the lifting will come into contact with the detection arm 40 and close it.
At this time, since the rotating brush 25 is not at the upper limit position, the relay contact H-4 is in the closed state, and the relay contact ML4-
2 is also in the closed state, so relay ML3 is energized. Accordingly, each relay contact ML3-1 to ML3-4 performs a closing operation. By closing this relay contact ML3-2, the relay ML3 is self-retained, and the relay contact ML3-
1 is closed, relay M2 is energized, and relay contact M2-3 is closed to energize relay MtJ until rotating brush 25 reaches the upper limit position. After reaching the upper limit position, relay H is activated in the same manner as described above. The energizing operation deenergizes the relay MU and stops the rotating brush 25 from rising. On the other hand, relay contact ML
3-3 closes, the timer T operates, and after a predetermined period of time, for example, 5 to 10 seconds, from the start of this operation, the timer contact T-1 closes. That is, if the rotating brush 25 does not reach the upper limit position or is not moved up within the set time of the timer T, the relay MX2 is activated. Along with this energizing operation, the failure indicator lamp F lights up when the relay contact MX2-2 is closed, and at the same time, the relay MX is energized when the relay contact MX2-1 is closed. The return movement of the mud collecting machine 6 is stopped by the operation of the contacts of the relay MX.

Further, if an overload occurs due to any cause other than the above-mentioned failure, the switch SWI or the switch SW2 is automatically switched to the a side. In this case, it goes without saying that manual operation may also be used. When the switch SW1 is switched to the a side, a circuit is formed in which the rotating brush 25 cannot rotate, and at the same time, the relay MX4 is energized and its relay contact MX4-1 is closed, thereby turning on the failure indicator lamp. F lights up, and a contact point of a relay MX4 (not shown) included in the control circuit 42 operates to stop the reciprocating movement of the mud collecting machine 6.

When the switch SW2 is switched to the a side, the geared motor 34 with a lift brake is formed into a circuit that cannot be driven, and at the same time, the relay MX3 is energized to close its contact M.
X3-1 is closed, and accordingly, relay MX is energized, and when the relay contact MX-1 is closed, failure indicator lamp F lights up, and the contact of relay MX (not shown) included in control circuit 42 is turned on. operates to stop the reciprocating movement of the mud collecting machine 6.

If you want to do it manually, turn on the manual switch B, then press the lowering button switch C31, the relay MD will be energized, the geared motor 34 with a lifting brake will be driven to rotate, and the rotating brush 25 will be at the lower limit position. Descend to
It stops when relay contact L-3 opens and closes due to the energization. When the rotation button C33 is pressed in this state, the relay RD is energized and the rotary brush 25 rotates, thereby cleaning. Also, if you press the stop button switch C34, the relay RD
is deenergized and the rotation of the rotating brush 25 is stopped. Next, when the lift button C32 is pressed, the relay MU is energized and the rotary brush 25 is raised to the upper limit position, and at this time, the relay H is energized and the relay contact H-2 is opened and the ascent is stopped. To fix the rotating brush 25 at an appropriate position between the upper and lower limits, press either button switch C81 or C32 to raise or lower the rotating brush 25, and when the desired position is reached, press the stop button. If C35 is pressed, the lifting and lowering is stopped, and by rotating the rotating brush 25 in this state, an appropriate part of the final sedimentation basin 1 can be cleaned at will.

Since the lowering motor 34 is equipped with a brake, the brake acts when the lowering geared motor 34 with a brake is stopped, and the rotating brush 25, which is located at the upper limit, is inadvertently caused by its own weight. This can effectively prevent the rotating brush 25 from falling, and when the rotating brush 25 is at the lower limit while cleaning, the entire rotating brush 25 will wobble due to the frictional force between the objects to be cleaned as the rotating brush 25 rotates. This can also be prevented. Further, in addition to the failure indicator lamp F, an alarm such as a buzzer may be provided.

In the above embodiment, the water ring cleaner 12 was manually moved along the longitudinal direction of the mud collecting machine 6.
Either of the running wheels 14, 16 may be connected to another running motor, and the vehicle may be driven automatically by this motor. Further, a plurality of water ring cleaners 12 may be fixedly installed corresponding to the areas to be cleaned in the final sedimentation tank 1. Furthermore, the rotating brush 25 and a geared motor 34 with a lifting brake are provided.
For example, a mechanical or electromagnetic clutch 43 is provided on the rotating shaft 22 for the lifting mechanism, and if the above-mentioned electrical safety circuit does not operate and the rotating brush 25 collides with an obstacle, an external pressure higher than a predetermined level is applied to the rotating brush 25. When activated, it is preferable that the clutch 43 interrupts the transmission of the lifting power from the geared motor 34 with lifting brake to the rotating brush 25 to prevent damage to the rotating brush 25, the trough, etc.

FIGS. 10 and 11 show another embodiment in which the rotary brush 50 is not only rotated in the vertical direction, but also movable in the left and right directions, and the water ring cleaner 51 is moved to the running end. When cleaning, it is convenient to be able to clean areas further outward than this end position. That is, a bracket 52 having a U-shaped cross section and having a brush drive geared motor 24 attached thereto is fixed to the lifting mechanism rotating shaft 22, and the brush drive geared motor 2 is supported by this bracket 52.
One end of the arm 53 is rotatably attached to the rotating shaft 24a of the arm 53, and a sprocket 54 is fixed to the rotating shaft 24a in the arm 53, and a sprocket 55 is also installed at the other end of the arm 53, These sprockets 54.
A chain 57 is hung by interposing a tension gear 56 between the chain 55 and the like. The sprocket 55 is fixed to the upper end of the rotating shaft 5oa of the rotating brush 50, while an engagement pin 59 biased in the upright direction by a spring 58 is rotatably supported on the arm 53. An appropriate number of engagement recesses 60, 60, etc., into which the engagement pin 59 can be engaged, are provided at the end of the bracket 52.

Thus, the rotating brush 5o is rotated via the sprocket 54, chain 57, and sprocket 55 by driving the brush driving geared motor 24. In order to rotate the rotating brush 50 around the rotating shaft 24a, the spring 5
After the engaging pin 59 is tilted against the bias of 8 and disengaged from the previously engaged engagement opening 60, the rotary brush 5o is manually rotated in either the left or right direction. Ba,
The engaging pin 59 engages with the appropriate four engaging parts 60 by the biasing force of the spring 58, thereby fixing the rotating brush 5o.

As described above, according to the water ring cleaner for sedimentation basins according to the present invention,
Water rings that adhere to pond walls, overflow weirs, etc. can be cleaned automatically without the need for manual labor, which saves labor and is effective in reducing water quality deterioration due to the formation of water rings. It is highly suitable for environmental conservation as it has a good appearance and is highly suitable for environmental conservation.Also, since the rotating brush moves up and down automatically using a lifting mechanism, collisions with obstacles installed in the pond can be prevented. It does not damage rotating brushes or other facilities such as overflow weirs in ponds, and is particularly suitable for cleaning water rings and other dirt that occur in various ponds such as sewage treatment plants and water supply plants. .

[Brief explanation of the drawing]

The drawings show an embodiment of the sedimentation basin water ring vacuum cleaner according to the present invention, and FIG. 1 is an overall perspective view of the water ring vacuum cleaner attached to a sediment collection machine, and FIGS. 2 and 3 are final views. A cross-sectional view of each part of the sedimentation tank, Figure 4 is a front view of the water ring vacuum cleaner, Figure 5 is a side view of the water ring cleaner, Figure 6 is a perspective view of the main parts of the rotating brush, and Figure 7. is a perspective view of the main parts showing the upper and lower limit cams and the lJ mitsu switch, Fig. 8 is a control circuit diagram of the water ring vacuum cleaner, and Fig. 9 is a perspective view of the main parts to explain the operation of the water ring vacuum cleaner. 10 is a side view of a main part showing another example of the water ring vacuum cleaner, and FIG. 11 is a plan view thereof. 1...Final sedimentation tank 2...Wall part of final sedimentation tank 3.
...Trough 4...Triangular overflow weir 5.8.9...
・Rail 6...Sludge collecting machine 7...Overflow plate 1
o, 11... Arm 12.51... Water ring vacuum cleaner 13... Frame 14.16... Traveling wheel
15.17... Presser wheel 18... Pull handle
2o...Lock bolt 22...Rotating shaft for lifting mechanism 24...Geared motor for brush drive 2
5...Rotating brush 27...Cylinder body 31...Elevating mechanism 34...Geared motor with lifting brake 39.4o...Detection arm LU...
・Upper limit switch LD...Lower limit switch LSI...Limit switch for starting raising LS2, LS3...Limit switch for confirming raising LS4...Limit switch for starting lowering Patent applicant Union Giken Kogyo Co., Ltd. "7--2"! Figure 2 Entrance Figure 3 Exit Figure 4 Figure 5 Figure 6 Figure 7 Figure 10 Section

Claims (1)

[Claims] A movable body that reciprocates is provided with a brush rotatably driven by a power source and an elevating mechanism that moves the brush up and down, and a control circuit controls the rotation of the brush and the operation of the elevating mechanism in response to the reciprocating movement of the movable body. A water algae vacuum cleaner for use in sedimentation ponds that is controlled.