JP2603724Y2 - Sludge scraper - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a sludge scraping device.

[0002]

2. Description of the Related Art For example, in the first / final sedimentation basin of a sewage treatment plant, sludge settles from the inflowing sewage and accumulates at the bottom of the pond. These are scraped in one direction by a scraper. It is configured to flow into a pit that is recessed at one end of the pond bottom, and is suction-removed by a pump. The scraping in this case is performed by a sludge scraping device.

[0003]

In the conventional sludge scraping apparatus, a pair of left and right guides (guide rails) is provided for each pond through both side walls of the pond, and the traveling body is provided along these guides. In addition to being equipped with a scraper that scrapes to the lower part on both sides of the traveling body, not only the equipment becomes very large and it is expensive to manufacture, but also the transportation and construction becomes large, Losses were large in various fields, such as high operating costs. To solve such problems, for example,
Regarding the scraper device described in JP-A-62-501690
A technology to do this has been proposed. The scraper device is a single
Place a book guide on the bottom of the pond and follow the guide
To make the scraper sled with the blades freely reciprocable
The scraper blades are scraped at the front and rear ends of the reciprocating drive.
It is configured to switch between the close state and the non-scratch state.
You. However, the device was
Before and after elevation of the tank Ikegami secures the Tsunopu Rihoiru
Hang the cable between the cable drive wheels
It constitutes the transmission means by passing
Is to fix the guide and put the scraper sled
Install the front and rear wheels on the
To connect the carrier on the scraper sled to the cable
Requires very troublesome work and takes many days to complete
Not only requires cumbersome work, but also
When fixing the pulley wheel, the height relationship with the carrier
A cumbersome operation of adjusting to a predetermined is required.

[0004]

In order to solve the above-mentioned problems, the invention according to claim 1 is provided on a pond bottom wall in a sewage treatment facility.
Elongated fixed guide is provided to guide linearly along
The fixed guide is perpendicular to the longitudinal direction of the fixed guide.
Rotating back and forth around the axis
The driving source is a traveling body equipped with a scraper that can be switched to
And reciprocating drive by transmission means
The scraper scrapes the sludge settling on the bottom of the pond in one direction.
A sludge scraping device that can be removed to the outside and
The power transmission means may include the length on the center line between the pond widths at the pond bottom.
Driving side and driven side respectively arranged at one end and the other end in the hand direction
Between the two wheels on the side
And having an endless circulating transmission material that moves the row body back and forth.
Both wheels are equipped with fixed guides
It is characterized by the following . The invention according to claim 2 is based on claim 1.
The two wheels are supported rotatably in the longitudinal axis.
And the driving wheel is connected to the driving source on the pond.
Linked to the vertical axis of the drive shaft
On the other hand, the driven wheel is endless due to tension from the pond.
It can be urged in the direction in which the circulating transmission material is pulled . According to a third aspect of the present invention, in the first or second aspect, the endless is provided.
The circulating transmission material rotates around an axis perpendicular to the direction in which the traveling body reciprocates.
Forward and backward in response to a scraper that can rotate back and forth
And the scraper is
When the vehicle is in the non-scrolling state and the non-scrolling state,
To follow the direction . The invention according to claim 4 is a linear plan along the pond bottom wall in the sewage treatment facility.
There is a long fixed guide inside
The front and rear about the axis perpendicular to the longitudinal Direction of the fixed guide
Switch between the scraping state and the non-scraping state
A traveling body equipped with a creper can be driven back and forth by a drive source
And the scraper settles on the bottom wall of the pond.
Sludge that can be scraped in one direction and removed to the outside
A mud scraping device, wherein the driving source is an underwater driving type.
Travel so that the center of rotation faces the orthogonal direction
It is mounted on the body and the running wheels can be linked, and the running wheels are fixed.
Reciprocating the traveling body back and forth by rolling along the constant guide side
The scraper is configured to be driven,
Switching of the non-scraping state is performed by shifting the center of gravity around the axis.
A different drive from the drive system of the traveling body as done by
It is characterized by being a system .

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the illustrated embodiments. 1 to 3 show an embodiment of the present invention. This embodiment is an example of the final sedimentation basin (or the first sedimentation basin) in the sewage treatment facility.
The same applies to other individual facilities in the sewage treatment facility or to the sewage treatment facility. Here, reference numeral 1 denotes one of the sedimentation basins, in which sewage from the front equipment flows into the inlet opening on the left side in FIG. 1, and the supernatant water is discharged from a drain outlet such as an overflow weir provided on the right side in FIG. , Sludge settles.

[0006] The sedimentation basin 1 is slightly longer in the left and right directions in FIG. 1 and is rectangular when viewed from above. Here, the long side of the rectangle is the side wall 2 and the short side is the end wall 3. Bottom wall 4
Is slightly inclined leftward in FIG. 1,
It may be a horizontal plane. A pit 5 is provided at one bottom of the pond for removing the inflowed sludge by a pump.

The pits 5 are opened longer in the horizontal direction than the conventional pits, and the straightening plates arranged above the pond are inclined obliquely in the direction of the pits 5 so that the sediment flows through the straightening plates. Is also good.

In the sedimentation basin 1, a fixed guide 7 made of a round pipe is bolted on two left and right bottom walls 4 with its longitudinal direction parallel to the side walls. The guide 7 is connected by a number of band-shaped bottom plates, and is fixed in the pond by bolting the same to the bottom wall 4. The guide 7 is provided with a bolt through hole on the bottom side and a working window near the bottom, so that the guide 7 is bolted to the bottom wall 4 through the bolt through hole. It can be configured to perform a nut fixing operation through the window. This is shown in a later example.

The guide 7 has a notch on one side, in which a drive-side wheel (1 of the transmission means) which rotates around a vertical axis.
8) and a notch on the other side, and another driven side wheel 9 is provided here so as to be able to move back and forth. An endless circulating transmission such as a wire or a chain is provided between the wheels 8 and 9 so as to pass through the guides 7 and 7.
When the moving material 10 is hung as one of the transmission means and the drive shaft 11 having a vertical axis is rotated by the drive source on the pond, the vertical
Wheel 8 of the shaft-like driving side is rotated, thereby, no
The end circulation transmission material 9 is driven to rotate forward and backward.

The driven wheel 9 is the wheel 1
Accumulator 15 by wires 2 and 13 and wire 14
Endless circulating transmission , constantly pulled by the attached cylinder 16
The material 10 is driven so as not to be loosened. Here, both wheels 8 and 9 are longitudinally
It is provided at each end of the direction.

On one guide 7, a groove 18 is formed through the entire length of the side portion (the end may be omitted), and on the other guide 7, such a groove is not formed. No groove 18
A two-fingered yoke 19 attached to the end-circulation transmission member 10 communicates reciprocally.

Reference numeral 20 denotes a traveling body, which has an inverted U-shape, and a roller (moving guide) 2 provided in the traveling body 20.
1 is fitted on the two guides 7 so as to be reciprocated and rollable. The roller 21 is provided with oblique flanges on both side ends, and has a function of guiding the traveling body 20 while regulating the direction of the traveling body 20 in a combined direction of up and down, left and right, and around the vertical axis with only two rollers.

On one side of the traveling body 20, a guide groove 22 slightly longer than the front-rear length of the yoke 19 is formed, and the yoke 19 can slide back and forth in the guide groove 22. A fixed arm 23 extends from both upper sides of the traveling body 20, and a rotating shaft 25 is attached to the arm 23 via a stay 24 so as to be rotatable in a horizontal axis shape.

A scraper 26 is attached around the rotation shaft 25 so as to be able to swing back and forth, and the scraper 26 is vertical in the crouching state of FIG. 1 and obliquely avoids in the non-scratching state of FIG. It is configured as follows. That is, when the endless circulating transmission 10 is pulled to the left as shown in FIG. 1, the yoke 19 is also pulled and the scraper 26 becomes vertical. At this time, the stopper 27 projecting from the side surface of the traveling body 20 is defined vertically.

The traveling body 20 is pulled to the left in FIG. 1 by the rotation of the drive shaft 11, so that the settled sludge is raked and flows into the pit 5. When the drive shaft 11 rotates in the reverse direction and the endless circulating transmission material 10 is pulled in the opposite direction, the yoke 19 is pulled before the traveling body 20 and slides in the guide groove 22 as shown in FIG. Reverse side (non-scrape direction side)
And the traveling body 20 accompanies. This causes the scraper 26 to tilt forward and return in the direction of the arrow away from the sludge at the bottom of the pond. Endless , endless
If the circulating power transmission member 10 is pulled in the opposite direction, the scraper 26 is pulled in the scraping direction by the yoke 19, and becomes a vertical scraping posture, and the traveling body 20 starts moving in the scraping direction.

As shown in FIG. 4, the roller 29 is provided with a flange-shaped steady rest 29a in the middle in the axial direction, which fits between the two guides 7 to guide the traveling body 20. ing.

FIGS. 5 and 6 show additional examples . In this example , 35 is a long guide having a substantially drum-shaped cross section with an inverted triangle at the top and a triangle at the bottom.
5 has four slopes, and a work window 36 is provided at an appropriate position in the longitudinal direction. When the guide 35 is fixed with bolts and nuts 37, the guide 35 is made through a working window 36.

The traveling body 38 is guided by a main roller 39 and an auxiliary roller 40 having an oblique axis. At the top of the traveling body 38, a bearing 42 is fixed and a rotating shaft 43 is rotatably provided and a scraper 44 is attached. The rotating shaft 43 is moved from a hole 45 of the bearing 42 to a hole of the traveling body 38. The projecting piece 47 is extended through 46 so that the projecting piece 47 can swing back and forth so that the endless circulating transmission material 48
Are joined. The other part of the endless circulating transmission 48 passes through the upper part of the traveling body 38.

When the endless circulating transmission material 48 is pulled in the scraping direction, the projecting piece 47 becomes vertical and the scraper 44
Is also vertical and is ready to rake. On the other hand, endless circulating transmission material
When the 48 is pulled in the opposite direction, the projecting piece 47 avoids obliquely as shown by the imaginary line in FIG. 6, and the scraper 44 also swings in the same direction to perform a return movement while maintaining the non-scraping posture. In addition,
In place of the rollers 39 and 40, if the roller is formed into a solo van ball shape in which four rollers in front and rear and right and left fit in the lateral V-groove 41 of the guide 35, the structure can be simplified.

FIGS. 7 and 8 show another embodiment. This device does not need to transmit the driving force with a wire rope or the like.
This is a self-propelled sludge scraping device, in which a long rack 51 is fixed on two guides 50 made of round pipes, and a pinion 52 is engaged with the rack, and the pinion 52 is run. A self-propelled drive source (such as a submersible pump) 54 fixed to the body 53 can be forcibly driven. Thus, when the driving source 54 is driven in one direction, the traveling body 53 moves to the pit 55 in one direction by the pinion 52, and the sludge scraped by the scraper 56 flows into the pit 55. If the drive source 54 is driven in the opposite direction, the pinion 52
Rotates in reverse, and the traveling body 53 and the scraper 56 return.

The traveling body 53 is provided with an auxiliary roller 57 on the inner surface for stabilization thereof, and the auxiliary roller 57 is configured to move while hitting the side surface of the guide 50. The scraper 56 is mounted on a rotating shaft 59 rotatable on a bearing 58 fixed to the traveling body 53. Here, the scraper 56 has a mechanism for switching the scraper 56 between a scraping state and a non-scraping state. Is provided.

The switching mechanism includes an arm 60 mounted on the rotating shaft 59 and provided so as to straddle the rotating shaft 59.
And a weight 61 attached to the arm 60, and a stopper 62 protrudes from one side wall 2 and is fixed. In the scraping posture shown in FIG.
When 1 moves on the traveling body 53 on the side closer to the scraping side than the rotating shaft 59 and moves as it is, the weight 61 hits the stopper 62 and is pushed backward. As a result, the scraper 56 is also lifted up like a virtual line via the rotating shaft 59, and is in a non-scraping posture.

When the non-scraping posture is obtained, the drive source 54 rotates in the reverse direction, moves in the opposite direction, and returns. A stopper may also be provided at the return position, whereby the weight 61 rotates in the reverse direction and the scraper 56 is brought into the scraping position.

FIG. 9 shows another embodiment. In this embodiment, a guide 70 made of a single pipe is provided, a rack 71 is fixed thereon, and a pinion 72 meshing with the rack 71 is provided on the traveling body 73 side. A work window 74 is opened below the guide 70, and the guide 70 is
The window 74 is used when fixing with the nut 75. In addition, a roller 76 from the traveling body 73 is applied to the peripheral surface of the guide 70 to obtain stability of the traveling body 73.
77 denotes a bearing, 78 denotes a rotating shaft, and 79 denotes a scraper.

FIG. 10 shows another embodiment. In this embodiment, the guide 80 is semi-cylindrical and has a flange. This has the same configuration as that of the above embodiment, such as a rack and a pinion.

FIG. 11 shows another embodiment. In this embodiment, reference numeral 83 denotes a drum-shaped guide, on which a traveling body 88 is reciprocated by a rack 84, a pinion 85, an auxiliary roller 86 and a drive source 87. Switching mechanism 89
Is also equipped.

FIG. 12 shows an additional example . In this example , an H-section steel is used as a guide 90, and a rack 91 is attached to a web of the guide 90, and a pinion 94 driven by a self-propelled drive source 93 attached to a traveling body 92 is a rack 91.
It is configured to mesh with.

FIG. 13 shows another embodiment. In this embodiment, the guide 95 is made of box steel and the rack 9
6 is fixed. Other configurations are the same as those of the above embodiment.

FIG. 14 shows an additional example . Also in this example, the guide 100 uses a box-shaped pipe and only its bottom is open. The guide 100 is fixed slightly higher than the bottom of the pond. For the fixing, a plurality of front and rear beams 101 are fixed between both side walls 2 of the pond, the hanging body 102 is vertically lowered from the longitudinal length of each beam 101, and the guide 100 is suspended and fixed to the lower end thereof. It is.

At the front and rear ends of the guide 100, wheels 103 are provided, one of which is driven to rotate by a wire 104 circulating by a driving source. The traveling body 106 can reciprocate on the guide 100 by a main roller 105. The traveling body 106 is provided with a rotating shaft 108 by a bearing 107, and a scraper 109 is attached to the rotating shaft 108.

The bearing 107 is provided with an auxiliary roller 110 which contacts the guide 100 from outside. A projecting piece 111 is attached to a rotating shaft 108 in the traveling body 106, and one endless member 112 is joined to the projecting piece 111. 113 is a stopper of the scraper 109. The protruding piece 111 extends upward through the hole 114 of the traveling body 106.

In each of the above embodiments, the scrapers may be provided in a plurality of stages before and after. Also,
The scraper may be configured so that the base side is trailing and the destination side is leading, so that the sludge collects on the guide side as much as possible during the scraping and performs a stable movement. Further, the scraper may not be a vertical plate, but may be a plate portion having a lower portion inclined so as to be able to scoop up, and an upper portion having a gentle inclination angle so as to once hold the scooped sludge. In this case, when it comes to the pit, it is configured to be lowered downward by the stopper to remove sludge.

[0034]

[Effect of the invention] As described above, the transmission means
One end in the longitudinal direction and the other on the center line between the pond widths at the pond bottom
Both drive and driven wheels located at the ends
Between the two wheels
Endless circulating transmission material to be moved.
The eel is characterized by being mounted on a fixed guide.
As a result, the fixed guide is driven and driven by both wheels and endless
Collectively install in the pond as one with ring transmission material
Construction will be performed very quickly and reliably.
You. For example, both wheels and endless
Equipped with circulating transmission material, wheels and endless circulating transmission
The height of the material with the running body linked to this
There is no danger of thinking on-site or making a mistake.
It becomes. The invention according to claim 2 is the invention according to claim 1,
The wheel is supported rotatably on the longitudinal axis
In addition, the drive-side wheel is
While being linked to the shaft-shaped drive shaft,
Endless circulating transmission of the drive side wheel by tension from the pond
It is possible to urge in the direction of pulling the material, so the drive shaft
Ensures that the drive wheel is always driven
As well as ensuring that the driving force is
Transmission can be realized in real and automatic ,
It is possible to effectively prevent the occurrence of rubble. According to a third aspect of the present invention, in the first or second aspect, the endless circulation is provided.
The transmission material is located in front of an axis perpendicular to the reciprocating direction of the traveling body.
And then rotate it back and forth against a rotatable scraper.
As much as possible and the scraper
When the vehicle and the non-scraping state are obtained,
It is driven by an endless circulating transmission material.
Equipment that enables both traveling and scraper switching.
It can be provided in shorthand. The invention according to claim 4.
Is a linear plan along the pond bottom wall in the sewage treatment facility.
There is a long fixed guide inside
The front and rear are aligned with the axis perpendicular to the longitudinal direction of the fixed guide.
Switch between the scraping state and the non-scraping state
A traveling body equipped with a creper can be driven back and forth by a drive source
And the scraper settles on the bottom wall of the pond.
Sludge that can be scraped in one direction and removed to the outside
A mud scraping device, wherein the driving source is an underwater driving type.
Travel so that the center of rotation faces the orthogonal direction
It is mounted on the body and the running wheels can be linked, and the running wheels are fixed.
Reciprocating the traveling body back and forth by rolling along the constant guide side
The scraper is configured to be driven,
Switching of the non-scraping state is performed by shifting the center of gravity around the axis.
A separate drive from the drive system of the traveling body as done by
Endless circulating power transmission material
To provide a very simple sludge scraper that also eliminates
Will be able to In addition, the sludge scraping device, in addition to the sedimentation basin, sewage or water supply pipe to the treatment plant,
It can also be installed in sedimentation basins and waterways in treatment plants.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional side view of a settling pond with a sludge scraping device showing one embodiment of the present invention.

FIG. 2 is a sectional view taken along the line AA.

FIG. 3 is a sectional view taken along line BB of FIG. 2;

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

FIG. 5 is a longitudinal sectional view showing an additional example .

FIG. 6 is an enlarged sectional side view of a portion C in FIG. 5;

FIG. 7 is a longitudinal sectional view showing another embodiment.

FIG. 8 is a sectional view taken along line DD of FIG. 7;

FIG. 9 is a longitudinal sectional view showing another embodiment.

FIG. 10 is a longitudinal sectional view showing another embodiment.

FIG. 11 is a longitudinal sectional view showing another embodiment.

FIG. 12 is a longitudinal sectional view showing an additional example .

FIG. 13 is a longitudinal sectional view showing another embodiment.

FIG. 14 is a longitudinal sectional view showing an additional example .

FIG. 15 is a sectional view taken along line EE of FIG. 14;

[Explanation of reference numerals] 1 ... sedimentation basin 7, 50, 70, 83, 90 ... fixed guide
8, 9 Wheel 10 Endless circulating transmission material 11 Drive
Shafts 20, 53, 73, 88, 92 ... running bodies 26, 5
6,79 ... Scraper 52,72,85 ... Running wheel 5
4,87,93 ... Drive source

Claims (4)

(57) [Scope of request for utility model registration] 1. A straight line along the pond bottom wall in the sewage treatment facility
A long fixed guide is provided to guide the
The guide has an axis perpendicular to the longitudinal direction of the fixed guide.
Switch back and forth between the scraped state and the non-scraped state
A traveling body equipped with an existing scraper serves as a drive source and transmission
The reciprocating drive is possible and the scraper
Rushes the sludge settling on the bottom of the pond in one direction to the outside
A sludge scraping device for removing the sludge, wherein the transmission means
Is one end in the longitudinal direction on the center line between the pond widths at the pond bottom
And the drive side and driven side wheels respectively provided at the other end.
Between the two wheels
And an endless circulating transmission material to be actuated.
The wheels are equipped with fixed guides
Sludge raking device that. 2. A wheel according to claim 1, wherein both wheels have a longitudinal axis.
And is rotatably supported by the
Is linked to a vertical drive shaft connected to a drive source on the pond.
While the driven wheel is
In the direction to pull the endless circulating transmission material by the tension from the pond
Sludge scraping device that can be energized . 3. The endless circulation transmission according to claim 1,
The moving material moves back and forth around an axis that is orthogonal to the
To rotate forward and backward with respect to the freely rotatable scraper
And the scraper is in a scraping state
Also, when the non-scraping state is obtained, the traveling
Sludge scraping device designed to be moved . 4. A tank parallel to a pond bottom wall in a sewage treatment facility.
A long fixed guide for linear guidance is provided.
The fixed guide has an axis perpendicular to the longitudinal direction of the fixed guide.
Rotate back and forth around to switch between scraped and non-scraped states
The traveling body equipped with a free scraper
The scraper is provided so that it can be driven backward, and the scraper is
Sludge settling on the top can be scraped in one direction and removed to the outside
Wherein the driving source is an underwater drive.
As a dynamic type, the center of rotation faces the orthogonal direction
It is mounted on the running body and the running wheels can be linked,
The running wheel rolls along the fixed guide side,
The scraper is configured to reciprocate back and forth.
Switching between the scraped state and the non-scraped state is performed at the axis center.
The drive system of the traveling body so as to be made by moving the center of gravity
Is a sludge scraper characterized by having a separate drive system .