JPH0629607U - Sludge attracting device - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] To simplify the structure, provide the device at low cost, and make the manufacturing, transportation, construction, and operation maintenance in general advantageous. [Structure] The fixed guide 7 that guides the traveling body 20 so that it can reciprocate is a single track type of pipe, and the scraper 26 provided on the traveling body scrapes the settled sludge in one direction by operating in at least one direction. It is constructed so that it can be excluded and externally excluded. Further, the fixed guide is formed of two right and left round pipes, and the traveling body is movable along the fixed guide by a moving guide that can roll along the upper surface of the fixed guide. Further, a rack is provided along the fixed guide, and a pinion meshing with the rack is driven by a self-propelled drive source provided on the traveling body to reciprocate the traveling body.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a sludge attracting device.

[0002]

[Prior art]

 For example, in the first and final settling basins of a sewage treatment plant, sludge settles from the inflowing sewage and accumulates on the bottom of the basin. It is configured to flow into a pit that is recessed at the end of the direction and to be removed by suction with a pump. The scraping in this case is performed by the sludge scraping device.

[0003]

[Problems to be solved by the device]

 The conventional sludge attracting device is provided with a pair of left and right guides (guide rails) for one pond via both side walls of the pond, and an operating body is provided along these guides, as well as the traveling body. Since it was equipped with scrapers that scrape underneath both sides of the equipment, not only was the device very large and expensive to manufacture, but it also required a large amount of transportation and construction, and it was expensive in terms of operation. The loss was large.

[0004]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the invention according to claim 1 is provided with a fixed guide for linear guide in the wastewater treatment facility, and the traveling body reciprocates along the fixed guide by a drive source and a transmission means. A sludge scraper, which is made possible, scrapes the sludge that settles on the bottom of the treatment facility in one direction by operating in at least one direction and allows it to be discharged to the outside. The stationary device is characterized in that the fixed guide is of a single track type with a pipe, and the traveling body reciprocates along the guide. According to a second aspect of the present invention, the fixed guide is formed of two left and right round pipes, and the traveling body becomes a fixed guide by a movable guide that can roll along the upper surface of the fixed guide. It is possible to exercise along with it. According to a third aspect of the present invention, a rack is provided along the fixed guide, and a pinion meshing with the rack is driven by a self-propelled drive source provided on the traveling body to reciprocate the traveling body. It is configured. According to a fourth aspect of the present invention, in the structure according to the first or second aspect, the transmission means includes an endless member such as a wire or a chain that moves along a fixed guide, and a wheel that receives the endless member. The movement of the endless member in one direction drives the traveling body and the scraper in one direction, and the movement of the endless member in the opposite direction drives the traveling body and the scraper in the opposite direction, and the movement of the one direction causes the scraper to remove sludge. The scraper is configured so as to be in a non-scratching state by the movement in the opposite direction.

[0005]

【Example】

 Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments. 1 to 3 show an embodiment of the present invention. This example is an example of the final settling basin (or the first settling basin) in the sewage treatment facility, but the same is applied to other individual facilities in the sewage treatment facility or the water treatment plant. . Here, 1 is one of the settling basins, in which sewage from the previous equipment flows into the inlet on the left side of Fig. 1, and the supernatant water is the drainage port such as an overflow weir on the right side of the diagram. More discharged, sludge will settle.

The settling basin 1 has a rectangular shape when viewed from above in which the left and right directions are slightly long in FIG. 1. Here, the long side of the rectangle is a side wall 2 and the short side is an end wall 3. The bottom wall 4 is slightly inclined to the left in FIG. 1, but may be a horizontal plane. At the bottom of one of the ponds, there is a pit 5 for pumping out the sludge that has flowed in.

The pit 5 has a horizontal opening longer than that of the conventional one, and the straightening vanes arranged above the pond are arranged obliquely in the direction of the pits 5 so that the precipitate can flow through the straightening vanes. Good.

In the sedimentation basin 1, fixed guides 7 made of round pipes are bolted onto two left and right bottom walls 4 with their longitudinal directions parallel to the side walls. The guide 7 is connected by a number of strip-shaped bottom plates and is fixed in the pond by bolting the bottom plates to the bottom wall 4. The guide 7 is provided with a bolt through hole on the bottom side and a work window near the bolt through hole 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 fastening operation through the window. This is also shown in later examples.

The guide 7 is provided with a notch on one side and a wheel (one of transmission means) 8 which rotates around the longitudinal axis, and a notch on the other side so that the guide 7 can be moved back and forth. It is provided with another wheel 9. An endless member 10 such as a wire or a chain is hung between the wheels 8 and 9 so as to pass through the guides 7 and 7 as one of transmission means, and a drive shaft 11 is rotated by a drive source on Ikegami. Then, the wheel 8 is rotated, whereby the endless member 9 is rotationally driven in the forward and reverse directions.

The wheel 9 is constantly pulled by the wheels 12, 13 and the wire 14 by the cylinder 16 with the accumulator 15 so that the endless member 10 is driven so as not to loosen.

A groove 18 is formed in one guide 7 through the entire side length (ends may be omitted), and no groove is formed in the other guide 7. A two-finger type yoke 19 attached to the endless member 10 communicates with the groove 18 in a reciprocating manner.

Reference numeral 20 denotes a running body, which has an inverted U-shape, and a roller (moving guide) 21 provided in the running body 20 is fitted and guided on the two guides 7. It can roll back and forth. This roller 21 is provided with diagonal flanges at both ends, and has only two rollers, and has a function of guiding the traveling body 20 in a combined direction of up / down / left / right / vertical axis while controlling the direction thereof.

A guide groove 22 that is slightly longer than the front-rear length of the yoke 19 is formed on one side of the traveling body 20, and the yoke 19 can slide forward and backward in the guide groove 22. A fixed arm 23 extends from both sides of the upper portion of the traveling body 20, and a rotary shaft 25 is rotatably attached to the arm 23 via a stay 24 in a horizontal shaft shape.

A scraper 26 is swingably attached to the front and rear around the rotary shaft 25. The scraper 26 is vertical in the scratching state in FIG. 1 and is oblique in the non-scratching state in FIG. It is configured to avoid. That is, as shown in FIG. 1, when the endless member 10 is pulled leftward, the yoke 19 is also pulled and the scraper 26 becomes vertical. At this time, the stopper 27 protruding from the side surface of the traveling body 20 is vertically defined.

The traveling body 20 is pulled leftward as it is in FIG. 1 by the rotation of the drive shaft 11, so that the sludge that has settled is scraped and flowed into the pit 5. When the drive shaft 11 rotates in the reverse direction and the endless member 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. After moving to the (non-crawling direction side), the traveling body 20 comes to accompany. As a result, the scraper 26 tilts forward and returns in the direction of the arrow away from the sludge at the bottom of the pond. When the endless member 10 is pulled in the reverse direction at the returned end, the scraper 26 is pulled by the yoke 19 in the scratching direction, and the scraper 26 is in a vertical scratching posture and the traveling body 20 starts to move in the scratching direction. .

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

5 and 6 show another embodiment. In this embodiment, 35 is a long guide having a substantially drum shape with an inverted triangle at the top and a triangle at the bottom. The guide 35 has four slopes and a working window 36 at a proper position in the longitudinal direction. When fixing the guide 35 with bolts and nuts 37, it is done through a work window 36.

The traveling body 38 is guided by a main roller 39 and a diagonal roller auxiliary roller 40. A bearing 42 is fixed and a rotating shaft 43 is rotatably provided and a scraper 44 is attached to the top of the traveling body 38. The rotating shaft 43 extends from the hole 45 of the bearing 42 to the hole of the traveling body 38. A projecting piece 47 is extended through 46, and an endless member 48 is joined thereto so that the projecting piece 47 can swing back and forth. The other part of the endless member 48 extends through the upper portion of the traveling body 38.

When the endless member 48 is pulled in the scraping direction, the projecting piece 47 becomes vertical and the scraper 44 also becomes vertical, so that the endless member 48 is in a scraping posture. On the other hand, when the endless member 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 the returning movement while maintaining the non-scratching posture. To do. In place of the rollers 39 and 40, a total of four rollers in the front-rear direction and the left-right direction can be fitted into the lateral V-shaped groove 41 of the guide 35 so as to have an abacus ball shape, thereby simplifying the structure.

7 and 8 show another embodiment. This device 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 meshed with the rack 51 to engage the pinion 52. A self-propelled drive source (submersible pump or the like) 54, in which 52 is fixed to a traveling body 53, can be forcibly driven. As a result, when the driving source 54 is driven in one direction, the traveling body 53 moves to the pit 55 side which is one direction by the pinion 52, and the sludge scraped by the scraper 56 flows into the pit 55. When the drive source 54 is driven in the reverse direction, the pinion 52 rotates in the reverse direction and the traveling body 53 and the scraper 56 make a return motion.

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

This switching mechanism includes an arm 60 attached to the rotary shaft 59 so as to straddle the rotary shaft 59, and a weight 61 attached to the arm 60, and at the same time, A stopper 62 projects and is fixed to the side wall 2. 8, the weight 61 rests on the traveling body 53 on the side closer to the rotation axis 59 than the rotation shaft 59, and when the weight 61 is moved as it is, the weight 61 hits the stopper 62 and is pushed backward. As a result, the scraper 56 is also lifted via the rotary shaft 59 as shown by an imaginary line, and is in a non-scratching state.

When the non-scratching state is obtained, the drive source 54 rotates in the reverse direction and moves in the reverse direction as it is to return. A stopper may also be provided at the return position, whereby the weight 61 rotates in the reverse direction, and the scraper 56 is in a state of being scraped.

FIG. 9 shows another embodiment. In this embodiment, a guide 70 composed of a single pipe is provided, a rack 71 is fixed on the guide 70, and a pinion 72 engaging with the guide 71 is provided on the traveling body 73 side. A work window 74 is opened in the lower portion of the guide 70, and this window 74 is used when the guide 70 is fixed with bolts and nuts 75. Further, the roller 76 from the traveling body 73 is abutted on the peripheral surface of the guide 70, and the stability of the traveling body 73 is obtained. Reference numeral 77 is a bearing, 78 is a rotating shaft, and 79 is a scraper.

FIG. 10 shows another embodiment. In this embodiment, the guide 80 is semi-cylindrical and has a flange. A rack, a pinion, and the like have the same structure as that of the above embodiment.

FIG. 11 shows another embodiment. In this embodiment, 83 is an hourglass-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. A switching mechanism 89 is also provided.

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

FIG. 13 shows another embodiment. In this embodiment, the guide 95 is made of box-shaped steel, and the rack 96 is fixed thereon. Other configurations are the same as those in the above-mentioned embodiment.

FIG. 14 shows another embodiment. In this embodiment as well, the guide 100 uses a box-shaped pipe, and only the bottom is opened. This guide 100 is fixed slightly higher than the pond bottom. For the fixing, a plurality of front and rear beams 101 ... Are fixed between both side walls 2 of the pond, and the suspension body 102 is vertically lowered from the longitudinal direction of each beam 101, and the guide 100 is suspended and fixed to the lower end thereof. There is.

Wheels 103 are provided at the front and rear ends of the guide 100, and one of the wheels is rotationally driven by a wire 104 that circulates in a drive source. A main roller 105 of the guide 100 allows a traveling body 106 to reciprocate. A rotating shaft 108 is provided on the traveling body 106 by a bearing 107, and a scraper 109 is attached to the rotating shaft 108.

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

In each of the above-mentioned embodiments, the scrapers may be provided in a plurality of front and rear stages. In addition, the scraper may be configured so that the base side moves backward and the tip side precedes, and sludge collects as close to the guide side as possible during the scratching so as to perform a stable movement. Further, the scraper may not be a vertical plate, but may be one in which the lower part is a slanted plate part so that it can be scooped up, and the upper part is a slanted plate part that temporarily holds the scooped sludge. . In this case, when it reaches the pit, it will be lowered by a stopper so that sludge can be removed.

[0034]

[Effect of device]

 The present invention has been described above. Therefore, not only is the device very small and inexpensive to manufacture, but also it is easy to transport and install, and it is also advantageous in terms of operation, in many ways. The sludge attracting device can be installed not only in the sedimentation basin but also in sewage or clean water pipes to the treatment plant, a sand basin in the treatment plant, a flow channel.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of a sedimentation basin with a sludge attracting device showing an 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.

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

FIG. 5 is a vertical cross-sectional view showing another embodiment.

6 is an enlarged side sectional view of a C part in FIG.

FIG. 7 is a vertical cross-sectional view showing another embodiment.

8 is a cross-sectional view taken along the line DD of FIG.

FIG. 9 is a vertical cross-sectional view showing another embodiment.

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

FIG. 11 is a vertical cross-sectional view showing another embodiment.

FIG. 12 is a vertical sectional view showing another embodiment.

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

FIG. 14 is a vertical cross-sectional view showing another embodiment.

15 is a cross-sectional view taken along the line EE of FIG.

[Explanation of symbols]

 1 Settling basin 7,35.50,70,83,90,100 Guide 20,38,53,73,88,92,106 Running body 26,44,56,79,109 Scraper 51,71,84,91, 96 rack 52,72,85,94 pinion 54,87,93 drive source

Claims (4)

[Scope of utility model registration request] 1. A sewage treatment facility is provided with a fixed guide that guides linearly, and a traveling source can be reciprocated along the fixed guide by a drive source and a transmission means. The scraper provided is a sludge scraping device that scrapes the sludge settled at the bottom of the treatment facility in at least one direction and allows it to be discharged to the outside, and the fixed guide is a pipe. A sludge attracting device which is of a single track type and is configured such that the traveling body reciprocates along the guide. 2. The fixed guide is formed of two left and right round pipes, and the traveling body is movable along the fixed guide by a moving guide that can roll along the upper surface of the fixed guide. The sludge attracting device according to claim 1. 3. A rack is provided along with the fixed guide,
The sludge attracting device according to claim 1, wherein a pinion meshing with the rack is driven by a self-propelling drive source provided on the traveling body to reciprocate the traveling body. 4. The transmission means includes an endless member such as a wire or a chain that moves along a fixed guide and a wheel that receives the endless member, and the endless member drives the traveling body and the scraper in one direction by the movement in one direction. The traveling body and the scraper are driven in the opposite direction by the reverse motion of the endless member, the scraper scrapes sludge in the one-direction motion, and the scraper becomes the non-scraping position in the reverse motion. The sludge attracting device according to claim 1 or 2, which is configured.