JP4565285B2 - Sludge scraping device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a sludge scraping device.
[0002]
[Prior art]
For example, on the water surface of the first or final sedimentation basin, a pipe with an opening in the upper part is mounted on the treatment pond so that it can rotate freely and reciprocally rotate around its axis. A pipe skimmer is constructed that attracts scum and the opening returns to the surface of the water so that the scum can be blocked. Alternatively, a trough-like trough is fixed horizontally above and below the surface of the treatment pond. A fixed trough-type scum removing device may be constructed in which a weir is mounted in front of the trough so as to be able to move up and down, the scum is blocked by the rising, and the scum is attracted by the sinking. The same applies to the pipe skimmer. For example, in the fixed trough type scum removing device, a dedicated drive means may be configured to move the weir up and down, while the flight (sludge scraping) circulates in the pond. There is one that uses the power of the member. In this flight-use type, a cam is placed on the track in response to the circulation of the flight and the arm is attached to the cam so that the weir is moved by the movement of the arm. I am trying to make it rise and fall. This type is advantageous in that troubles of the apparatus are reduced by using the power from the flight and not requiring special power.
[0003]
[Problems to be solved by the invention]
However, the conventional interlocking mechanism has a rotating fulcrum in front of the weir, supports the middle of the arm around the fulcrum, and connects the cam to the front of the arm and the rear to the weir so that it can be interlocked Has been. In other words, when the flight comes, the cam is pushed up and the rear part of the arm is pushed down, so that the weir is pushed down, and the weir is pushed by the return means such as its levitation force, weight and weight of the arm. It is configured to be returned after passing. In such a system, since the front part of the arm extends in a cantilevered manner from the center of rotation, the arm cannot be extended so long that there is a limit to the length of the cam attached to the front part of the arm. Yes, the contact time with the flight side is shortened, and the time for pushing down the weir is limited. As a result, if the time to hold down the weir is short, it is necessary to push down the weir frequently in order to attract many scums effectively, and a lot of power from the flight is consumed to attract and remove a certain amount of scum. As a result, the operation cost is increased.
[0004]
The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a scum removing device that can be operated at low cost .
[0005]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the invention according to claim 1 has a partition wall facing the pond width direction and an end wall facing the front-rear direction, which is a direction orthogonal to the pond width direction, and is drained at one end. A monorail guide rail is laid on the bottom wall of the treatment pond, which has a bottom wall having pits and is rectangular in plan view, so as to pass through the center of the pond. There is provided a traveling body with a traveling wheel that can move forward and backward and move forward and backward in the pit direction. The traveling body includes an underwater-use drive source that includes a drive wheel, and idlers that are positioned before and after the drive wheel. When the up and down sludge scraper so that the non-scraper state when retracted becomes sludge scraper state equipped during forward, the processing Ikeuchi is wound so as to form a meander shape and drive wheel and the front and rear idler et al And transmitting member towards the pond longitudinal direction in a state along on the bottom wall at a central location between the pond width, characterized in that it is a single book stretched.
[0006]
The invention described in claim 2 is the one described in claim 1, wherein one end of the transmission member is guided to the top of the pond and the tension state thereof can be adjusted.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments .
1 and 2 show an embodiment of the present invention .
The embodiment of these figures is for the first or final sedimentation pond, 1 and 1 are defined side walls facing the left and right (pond width direction), and the direction perpendicular to the side wall 1 is the length of this treatment pond ( Front and rear) direction . The sedimentation basin (treatment pond) has a partition wall 1 facing the pond width direction and an end wall facing the front-rear direction which is a direction perpendicular to the pond width direction, and a bottom wall having a mud pit 126 at one end. 124 having a rectangular shape in plan view.
[0008]
These figures show the bottom of the water using a transmission member 122 which is a toothed belt formed by integrally forming a high-strength steel cord as a core wire on an iron rubber (registered trademark) excellent in wear resistance, mechanical strength, and the like. The traveling sludge scraping device 123 is configured so as to be movable forward and backward. As the transmission member 122, an AT belt having a large tooth cross section (see an enlarged view of FIG. 2) or a flat belt is selectively used in addition to the standard belt.
[0009]
In the settling pond, a pair of left and right guide rails 125 are laid on the bottom wall 124, and one end of the guide rail 125 extends over the mud pit 126. The guide rail 125 may be laid in a width that is sufficiently wider than the width in FIG. 1 and almost less than the pond width, but may be laid in a narrower width than shown. On the other hand, even if there are one or two, a monorail guide rail that is narrow and close to one may be laid in the center of the pond. There are also cases where the vehicle runs directly on rubber tires without laying guide rails .
[0010]
The sludge scraping device 123 has a traveling body 128 as a rectangular frame, and the traveling body 128 is provided with traveling wheels 129... And moves forward along the bottom wall 124 at the center of the pond width and vice versa. It is free to advance and retreat in the direction. In addition to the traveling wheel 129, a roller for preventing the running body 128 from sideways swinging, a roller for preventing the traveling body 128 from coming off, and the like can also be provided. A frame 130 is provided at the center of the traveling body 128 in the width direction, and a drive source 131 that is a motor with a speed reducer is mounted thereon. The drive source 131 is an underwater use type, and its output shaft protrudes in the pond width direction, and a drive wheel 132 that is a belt pulley is attached to the end of the drive shaft .
[0011]
An idler 133 is disposed in front of and behind the drive wheel 132 with a pressing function. Reference numeral 134 denotes a pipe support extending from the drive source 131 to the surface of the water. An energization cord 135 for supplying power to the drive source 131 is passed through the support 134. The cord 135 is hung on a cable 136 above the water surface. Reference numeral 137 denotes a belt scraper. Thus the transmission member 122 is stretched toward the pond longitudinal direction in a state along on the bottom wall 124 in Ikehaba between the central position, the middle point is both from exceeding the drive wheel 132 as shown in FIG. 2 It winds so as to meander around the lower part of the idler 133, one end of which is fixed to the pit 126 side (may be fixed to the opposite side), and the other end is hung on the pond so that the tension can be adjusted .
[0012]
One end of the transmission member 122 on the pit side is rotated by a wheel 138 and is fixed between the fixed anchors 139. The other end of the transmission member 122, after being also wound on another wheel 138 on routed to wheel 138 ponds, are wound on the rotation regulating drum 140 with handle. By rotating the handle, the rotation adjusting drum 140 is rotated, whereby the wheel 138. . . Thus, the tension of the transmission member 122 can be properly adjusted on the pond at any time .
[0013]
The sludge scraper 141 is mounted on the traveling body 128 so as to move up and down so as to be in a sludge scraping state when moving forward and a non-scraping state when moving backward, and is attached rotatably by a hinge 142 provided on the tail portion of the traveling body 128, The scraper 141 may be moved up and down in conjunction with the drive source 131. In this embodiment, the scraper 141 is configured to be in a scratched / non-scratched state independently of the drive system. . That is, the scraper 141 has a square shape, and a pair of left and right rollers 143 are provided at the bottom thereof, and in the scraped state in the left direction, as shown in FIG. Suck the sludge. In the scraper 141, a slit is formed upward from the bottom corresponding to the guide rail 125. When the scraper 141 exceeds the edge 126a of the pit 126, the scraper 141 rotates in the reverse direction of FIG. By traveling on the bottom wall 124, the scraper 141 returns to the right in a state where it floats slightly above the bottom wall 124, so that sludge is not scraped back. Note that the balancer 150 of FIG. 28 functions as a reinforcing material while balancing the weight with the drive source 134 and the like. Further, the transmission member 122 may be a chain .
[0014]
【The invention's effect】
Since the present invention is configured as described above, it is possible to provide a scum removing device that requires less operating cost .
[0015]
[Brief description of the drawings]
FIG. 1 is a plan view of a sludge scraping apparatus showing one embodiment of the present invention as using a timing belt .
FIG. 2 is a side sectional view of the apparatus .
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 122 ... Transmission member 123 ... Sludge scraping device 124 ... Ikedokoro 128 ... Traveling body 129 ... Running wheel 131 ... Driving source 132 ... Drive wheel 134 ... Pipe support | pillar 135 ... One of power supply means 141 ... Sludge scraper .

Claims (2)

It has a partition wall facing the pond width direction and an end wall facing the front-rear direction, which is a direction orthogonal to the pond width direction, and a bottom wall having a mud pit at one end and formed in a rectangular shape in plan view A monorail type guide rail is laid on the bottom wall of the treatment pond so as to pass through the center of the pond, and the guide rail moves forward and backward in the direction of the sludge pit and reverse in the opposite direction. A traveling body with a wheel is provided, and the traveling body is an underwater use type driving source equipped with a driving wheel, an idler positioned before and after the driving wheel, and a sludge scraping state when moving forward, and a non-scraping state when moving backward A sludge scraper that moves up and down is installed, and in the treatment pond, there is a transmission member wound in a meandering manner on the drive wheel and the front and rear idlers along the bottom wall at the center position between the pond widths. State In sludge raking device characterized by being a single book stretched toward the pond longitudinal direction.   The sludge scraping device according to claim 1, wherein one end of the transmission member is guided to the pond and its tension state can be adjusted.

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