JP5668190B2 - Sedimentation residue removal device - Google Patents

Description

  The present invention relates to a sedimentation debris removal apparatus.

In the sedimentation basin, a plurality of inclined plates are installed in front of and behind the inflowing sewage, and sludge stays on the slopes of these inclined plates so that the sludge settles down and is recovered near the sludge pits. It is easy.
There exists what provided such an inclination board (for example, patent document 1).

  Japanese Patent No. 3485634

  However, sludge tends to stay on the inclined plate in the above-mentioned patent document, and once it stays, it is difficult to collect it as it is, so that the water quality cannot be improved efficiently.

  The present invention is intended to solve the problem of such a conventional apparatus, and removes settled stagnant material that immediately removes sludge accumulated on the inclined plate and collects it in a sludge pit. An object is to provide an apparatus.

In order to achieve the above object, the invention according to claim 1 is characterized in that an inflow portion of sewage is provided on the upstream side of the sedimentation basin, and a bottom wall in which sludge pits are formed below the inflow portion. At the center of the pond width on the bottom wall, a sludge scraping device with a scraper that moves back and forth in parallel with the bottom wall is equipped, and a prop is erected from the sludge scraping device to the water surface at the top of the column. While the scum scraping member for scraping the floating scum in the direction of the scum removing device is provided, in the sedimentation basin removing device in which inclined plates are arranged so as to be located on both sides of the support column, The support column is provided with a removing means that moves forward and backward while contacting the inclined plate to remove the sediment.
According to a second aspect of the present invention, in the sedimentation debris removal apparatus according to the first aspect , the removing means is a linear protrusion .
According to a third aspect of the present invention, in the sedimentation residue removing apparatus according to the first aspect , the removing means is a fluid ejecting means.

As described above, according to the sedimentation debris removal apparatus of the present invention, on the upstream side of the sedimentation basin , an inflow portion of sewage is provided and a bottom wall in which a sludge pit is formed is provided below the inflow portion. At the center of the pond width on the bottom wall is equipped with a sludge scraping device with a scraper that moves back and forth in parallel to the bottom wall, and a scum that stands upright from the sludge scraping device and floats on the water surface at the top of the column In the sedimentation debris removal device , in which a sloping plate is disposed in the sedimentation basin so as to be positioned on both sides of the support column. Since it is provided with a removing means that moves forward and backward while contacting the inclined plate and removes the accumulated sediment, the sludge staying on the inclined plate is immediately removed and recovered into the sludge pit. be able to Uninaru.

The top view which shows one Embodiment of the sedimentation debris removal apparatus of this invention. II-II sectional view taken on the line of FIG. III-III sectional view taken on the line of FIG. The cross-sectional view which shows other embodiment. The cross-sectional view which shows other embodiment. The side view which shows other embodiment. The left view of FIG. The cross-sectional view which shows other embodiment. IX-IX sectional view of FIG. The top view which shows other embodiment. The XI-XI sectional view taken on the line of FIG. 12 which shows other embodiment. XII-XII sectional view taken on the line of FIG. The side sectional view showing other embodiments. The top view which shows other embodiment.

Hereinafter, embodiments of the present invention will be described in detail.
FIGS. 1 to 3 show an embodiment of a sedimentation debris removal apparatus. Reference numeral 1 denotes a sedimentation basin, an upstream front end wall 3 provided with a porous inflow portion 2 and a downstream rear end opposite thereto. In addition to the wall 4, left and right side walls 5, 5 facing in the width direction are provided. Although the bottom wall 6 of the sedimentation basin 1 is shown in the horizontal direction in FIG. 2, the bottom wall 6 is actually inclined gently downward in the direction of the sludge pit 7 formed on the upstream side.

A sludge scraping device 10 includes a monorail guide rail 11 fixed so as to pass through the center of the pond width on the bottom wall 6, and a long slim type onboard machine 12 is provided on the guide rail 11. Equipped to move forward and backward in the longitudinal direction of the pond.
The onboard machine 12 includes a plurality of front and rear bodies 13 and connecting pipes 14 that connect the bodies 13. The airframe 13 is provided with traveling wheels 15 so as to be able to travel so that the guide rail 11 does not swing as a track.

  Reference numeral 16 denotes a main interlocking lever, which is attached to a position between the front and rear of each airframe 13 so as to swing back and forth. Reference numeral 17 denotes a sub interlocking lever, which is provided at the front and rear positions of each machine body 13, and these main / sub interlocking levers 16 and 17 are connected by an interlocking rod 18. A sludge scraper 19 is attached to each of the sub-interlocking levers 17 so as to be interlocked. The sludge scraper 19 moves up and down between a vertical scratching state and a front rising non-scratching (returning) state.

  One end of a transmission member 21 such as a wire rope or a link chain is connected to the main interlocking lever 17 provided in the most preceding machine body 13, and this transmission member 21 is shown by a solid arrow in FIG. 2 by a drive source 22 installed on the pond. Like A, it can be swung or loosened. The transmission member 21 is passed through the guide rail 11 via the drive source 22, bypasses the rear end of the guide rail 11, and the other end is connected to the main interlocking lever 17 of the airframe 13 at the rear end so that the arrow B in FIG. It comes to check in the direction. The front and rear of the main interlocking lever 17 are connected by other transmission members through the connection pipe 14 (not shown), whereby the front and rear sludge scrapers 19 are switched between a scratched state and a non-scratched state. Yes. Reference numeral 23 denotes a drive wheel, and 24... An idle wheel.

  1 and 2, the sludge scraping device 10 is in a scraped state in which the sludge scraper 19 is vertically lowered, and the sludge settled on the bottom wall 6 is scraped in the direction of the sludge pit 7 and the scraping is finished. The state at the time is shown. In this scraped state, when the transmission member 21 is driven in the direction of arrow A in FIG. 2 by the drive source 22, the main interlocking lever 16 is tilted forward and the secondary interlocking lever 17 is also tilted forward, and the sludge scraper 19 is in the vertical state. Is obtained. When the drive source 22 is rotated in the reverse direction and the transmission member 21 is driven in the direction of arrow B, the main / sub-interlocking levers 16 and 17 are tilted rearward (clockwise in FIG. 2), and the sludge scraper 19 is lifted and non-scratched. The on-board unit 12 is pulled to the right direction B in FIG. 2 and returned to its original position without being scraped.

A strut 26 is erected high on the preceding body 13 of the onboard machine 10, and a scum scraper 28 that squeezes the scum, which is floating on the water surface 27, to the scum removing device 30 at its upper end. Is attached. The ups and downs are made in conjunction with the sludge scraper 19, and rise and fall so as to stand up in the direction X of the scum removing device 30 and fall down in the opposite direction Y to return below the surface of the water.
The scum scraper 28 moves parallel to the bottom wall 6.

  The scum removing device 30 may be a scum skimmer type made of a cylindrical pipe, but here is a fixed trough type. Reference numeral 31 denotes a communication trough, which is fixed to the side wall 5 in a penetrating manner, and a trough 32 is fixed and horizontally mounted therebetween. A weir 33 is provided in front of the trough 32 and is moved up and down by the vertical drive means 34 at the boundary of the water surface 27. By sinking below the water surface, the scum that floats on the water surface is swallowed to rise above the water surface. The stagnation is stopped.

  When the scum scraper 28 advances in the X direction, the cam member 29 protruding forward from the column 26 operates the detection switch 35 protruding from the trough 32 to lower the vertical drive means (electric cylinder, etc.) 34. It is linked to the direction and returns to the up direction after a certain time. Reference numeral 37 denotes an overflow weir.

Reference numeral 40 denotes a front inclined plate, which is shaped like a dogleg plate. In this embodiment, the front end is located above the sludge pit 7 and the rear end is located in front of the scum removing device 30 as shown in FIG. Many are deployed at regular intervals in front and back. As shown in FIG. 1 and FIG. 3, the front inclined plate 40 is disposed on the left and right in the pond width direction with a sufficient width for the column 26 of the sludge scraping device 10 to pass therethrough. These front inclined plates 40 are each suspended from a left and right by a suspension frame 41 made of pipe. The suspension frame 41 is composed of a front and rear horizontal beam 42, an oblique member 43 that supports them, and a suspension beam 44 that connects the front and rear horizontal beams 42 with two, and a suspension member 45 that is lowered from the suspension beam 44. The said front inclination board 40 ... is supported through .... 46 is an intermediate beam.
The rear inclined plates 48 are of the same support system, but the rear inclined plates 48 may be omitted.

  In such a sedimentation basin, 50 is a long brush-like removal means, which moves forward and backward with the sludge scraping device 10 while contacting the upper shoulder of the front inclined plate 40 on the opposite side, and removes the accumulated sediment on the inclined plate 40. It will be. The removal means 50 is hung on a stay 51 extending left and right from the column 26 as shown in FIG. 3, but the stay 51 may be arranged in several rows in the front and rear, and the removal means 50 may be hung from each. As shown in the upper column of FIG. 3, a sediment 52 may be more effectively dropped by attaching a weight 52... There may be a plurality of lifting columns 26 such as left and right or two front and rear (the same applies hereinafter). The left-right distance of the inclined plate 40 is about 1 to 1.5 m, but may be narrowed to about 0.5 m when the number of the support columns 26 is one (hereinafter the same).

  FIG. 4 shows another embodiment. The interval between the inclined plates 40 is narrowed, and brush-like removing means 54 are projected from the left and right sides of the support column 26 over several stages so as to scrape the upper surface where the approaching inclined plate 40 stays. May be. The removing means 54 rubs different upper surfaces of the inclined plate 40 when the sludge scraping device 10 moves forward and backward.

FIG. 5 shows another embodiment. In this embodiment, sludge staying in the inclined plate 40 is dropped by performing water injection toward the inclined plate 40 through the constituent members.
The support column 26 is made of a pipe, and on both sides thereof, communicating nozzles 56 are projected in the direction of the corresponding inclined plate 40. The sludge accumulated on the inclined plate 40 is dropped by spraying water while the nozzles 56 advance and retreat. As shown in FIG. 2, water is supplied into the support column 26 by mounting a submersible pump 57 on the preceding machine body 13, or a high-pressure water supply hose 58 from the downstream pond is connected from the machine body 13. For example, it may be guided into the column 26 through the pipe 14. The hose 58 is provided with a swing arm 59 biased upward to absorb the advance / retreat stroke of the sludge scraping device 10.

  As shown in the upper right column of FIG. 5, the nozzle 56 is arranged so as to communicate with the scraper pipe 60 of the scum scraper 28, and when the scraper 28 stands up, the scum of the water surface 27 is fed back and returned. May be made to face downward and drop the sludge accumulated in the inclined plate 40.

  Further, as shown in FIGS. 6 and 7, the suspension member 62 is made of a pipe and communicated with the suspension beam 63, and the suspension member 62 is provided with a nozzle 64 so as to inject water toward the sludge staying portion of the inclined plate 40. You may make it perform. Water is supplied to the suspension beam 63 from the pond. The supply may be performed continuously or periodically by timer control, and may be performed in a timely manner.

  In FIG. 8, since the space | interval which the support | pillar 26 passes is vacant between the inclined boards 40, a sewage passes here downstream without resistance, Therefore The sedimentation effect of sludge may not be acquired. Therefore, in order to obtain sludge settling action in the space, inclined plates 66 are provided on both sides of the support column 26. 9 is a cross-sectional view taken along line IX-IX in FIG.

  The embodiment of FIG. 10 shows a mode in which the sludge is dropped by hitting the inclined plate 40 while the column 26 of the sludge scraping device advances and retreats as the removing means 69. This removing means 69 is provided with a swing arm 71 swingable back and forth via a hinge 70 around the vertical axis at the base, and a weight 72 at the tip of the arm 71. The arm 71 is arranged in the pond width direction. It is biased by a spring (not shown) so as to return.

  As shown in FIG. 5A, the column 26 is now moving forward at a very low speed, and the swing arm 71 is moving along the inclined plate 40. When the column 26 further advances, the weight 72 extends from the arm 71 over the edge of the inclined plate 40 as shown in FIG. In this state, the arm 71 moves so as to be removed against the spring of the base, and the support 26 further moves forward as shown in FIG. Then, as shown by the arrow, it comes into contact with the front inclined plate 40 with a spring force, and the sludge is dropped by the force. When the support column 26 moves backward, the sludge is also struck down. The weight 72 is not necessary because the swing arm 71 itself has a constant weight and has a function of hitting instead of the weight 72. The same operation is performed when the column 26 moves in the return direction.

11 and 12 show another embodiment. In this embodiment, the slant plate is formed of a bendable slanted surface material 75 and is manually or electrically operated from a pond on a regular stroke when necessary to remove sludge for a certain stroke and then returned to its original position. It can be dropped.
The inclined surface material 75 is made of a soft plastic surface material, a knitted surface material, or the like whose width is shorter than half the pond width, and between the longitudinal ends thereof, a wire rope, a link chain, a plate chain, or the like. One endless circulating material is formed by connecting several connecting members 76 made of a material.

  Reference numeral 77 denotes a support frame, which is fixed to the side wall 5 via a fixing base 74 with a fixed left-right pair as shown in FIG. Each support frame 77 includes a pair of vertical frames 78 facing left and right, a plurality of arms 79 projecting in one direction from the vertical frames 78, and a connecting member 80 connecting the upper and lower sides of the arms 79. The upper and lower ends of the vertical frame 78 are connected by a width connecting member 81. A plurality of rollers 82 are horizontally mounted on the support arm 77 formed as described above so as to hang the inclined surface member 75 in a meandering manner. In this case, since the left side of FIG. 11 corresponds to the upstream side from which the sewage flows, the sewage naturally enters by connecting the connecting material 76 toward the upstream side. A weight 83 for applying tension is hung below the connecting material 76.

  An operation handle 85 or an electric motor 86 is provided on the pond. These rotational forces actuate the driven wheel 89 from the drive wheel 87 via the drive chain 88, and the driven wheel 89 has a roller. 82 is interlocked. S is a drive stroke, and represents the length of the slanted surface member 75 being interlocked or returned obliquely downward. Reference numeral 90 denotes a scraper for separating the falling sludge from the inclined surface material 75.

  When sludge accumulates on the inclined surface material 75 from the state shown in FIGS. 12 and 13, the operation handle 85 or the electric motor 86 is driven to drive the inclined surface material 75 down by S. Thereby, the deposits on the inclined surface and the back surface of the inclined surface material 75 are dropped. Since the intermediate height roller 82 is shifted downstream from the lower end roller 82, the falling deposit does not accumulate on the lower roller 82, and the intermediate height roller 82 is inclined below the intermediate height roller 82. Since it is easy to fall with the connecting material 76 instead of the planar material 75, there is no possibility that sludge accumulates in any part of the apparatus.

  As shown in FIG. 13, a roller 82 is provided so that the connecting member 76 moves horizontally in the lower part, and two protrusions 92 and 92 are provided in the lower part, and the protrusion 92 is provided on the column 26 side. When the sludge scraping device 10 moves forward by protruding a horizontal bar 93 that can be pushed forward, the front protrusion 92 is pushed by the horizontal bar 93 to turn the inclined planar member 75 downward, and when moving backward, the horizontal bar 93 is horizontal. By causing the bar 93 to push the rear projection 92 back, deposits may be automatically dropped using the movement of the sludge scraping device 10.

  Further, as shown in FIG. 14, the roller 82 may be provided in parallel to the side wall 5.

  DESCRIPTION OF SYMBOLS 1 ... Sedimentation basin 10 ... Sludge scraping apparatus 11 ... Guide rail 12 ... On-board machine 26 ... Support | pillar 30 ... Scum removal apparatus 40 ... Inclined plate 50, 54 ... Removal means 75 ... Inclined surface material.

Claims (3)

An upstream part of the sedimentation basin is provided with an inflow part of sewage, and a bottom wall with sludge pits is provided below the inflow part. The center of the pond width on the bottom wall is parallel to the bottom wall. A sludge scraping device with a scraper that advances and retreats to and from the sludge scraping device is provided with a scum scraping member that stands upright and scums that float on the water surface toward the scum removing device at the upper end of the column On the other hand, in the sedimentation debris removal apparatus in which inclined plates are arranged in the settling basin so as to be located on both sides of the support column, the support column advances and retreats while contacting the inclined plate to remove the settling residue. A sedimentation and debris removal device, characterized in that a removal means is provided. The sedimentation residue removal apparatus according to claim 1, wherein the removal means is a linear projection . 2. The sedimentation residue removal apparatus according to claim 1, wherein the removal means is a fluid ejection means.

Images