JP3895505B2 - Equipment for collecting and transferring sediment - Google Patents

Equipment for collecting and transferring sediment Download PDF

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Publication number
JP3895505B2
JP3895505B2 JP21768499A JP21768499A JP3895505B2 JP 3895505 B2 JP3895505 B2 JP 3895505B2 JP 21768499 A JP21768499 A JP 21768499A JP 21768499 A JP21768499 A JP 21768499A JP 3895505 B2 JP3895505 B2 JP 3895505B2
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Japan
Prior art keywords
water
channel
sediment
pump
collecting
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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JP21768499A
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Japanese (ja)
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JP2001009209A (en
Inventor
虎男 井上
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虎男 井上
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Priority to JP21768499A priority Critical patent/JP3895505B2/en
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Description

[0001]
[Industrial application fields]
The present invention collects and transfers sediment deposited and deposited on the inner bottom of a water channel, water tank, settling tank, etc. using a sand pump, sludge pump, sewage pump, or a head in general industry, civil engineering, sewerage, etc. Equipment for collecting and removing.
[0002]
[Prior art]
Conventionally, in the method of collecting and removing the sediment deposited on the inner bottom of the water tank, the hydropower method is a submersible pump equipped with stirring blades and pressure water injection function, which removes the sediment around the pump, or the same person's patent No. 850838, patent no. There are things such as 1039387 that use pressure water to remove the sediment in the whole water tank. In the mechanical method, the mud after being scraped with a screw, special chain, scraper, etc. in a sand basin, sedimentation tank, etc. The method of removing with a pump has been widely used, but recently, there is a tendency to favor a hydro-type facility in which the rotary drive unit is not in water.
[0003]
[Problems to be solved by the invention]
To collect sediment deposited on the bottom of the water tank and sedimentation tank with a lot of contaminants, it is necessary to install and operate a scraper with a mechanical rotation drive unit in the water. There are problems such as biting of contaminants, shafts and bearings due to mud foreign matter, sliding wear of scraping blades, and maintenance of these in sewage and wastewater being difficult and unsanitary.
[0004]
Also, even in the case of the hydraulic system, the range that can be collected by the suction force or suction flow of the pump is limited to the vicinity of the suction port, even if it is attempted to collect and remove only by the pump. This method not only impairs the calmness of the aquarium, but also requires a large amount of power for flushing with a large diffusion loss, and the aquarium that can be used is limited. Not only does the pump become smaller, but the pump that is in a narrow open state due to deposition has problems such as a reduction in pumping amount and a tendency to become inoperable due to blockage due to collapse.
[0005]
[Means for Solving the Problems]
The invention according to claim 1, which has been made in order to solve the above-mentioned problem, is provided with a water-covering channel whose upper part is covered over its entire length and whose lower side part is open at the inner bottom of a water channel or a water tank. By flowing water with a high flow rate to the overflow channel, and sending the sediment in contact with the water flowing through the overflow channel, the outside sediment collapses into the cover channel from the lower side and collected. A facility for collecting and transporting sediment to be transported, wherein the suction port of the pump is connected to one end of the above-mentioned cover channel, the tip extends upward to the other end, and absorbs water above the sediment. It is a facility for collecting and transporting sediments connected by pipes .
A water-covering channel having a shape such as a U-shape or an inverted U-shape and having an upper portion covered and an opening on a lower side portion is linearly extended and disposed on the inner bottom portion of the water tank.
[0006]
The invention according to claim 2 is the precipitation according to claim 1, wherein the water absorption pipe extends upward along the wall surface of the water channel or the water tank and is provided with a vertically long slit or screen over almost the entire height thereof. It is a facility for collecting and transporting things.
A suction port of a mud pump installed on land or a suction port of a submersible pump placed above the flood channel is connected to one end of the flood channel. When there is a possibility that the other end of the water-covered channel is buried in the sediment, a water absorption pipe that extends upward and absorbs water above the sediment is connected and communicated. If there is no risk of burial in the sediment, open the water absorption pipe without connecting it. Moreover, when a head can be utilized, the drainage pipe provided with the valve instead of the pump is connected to the end portion of the cover channel, and the sediment is discharged out of the water tank through the drainage pipe.
[0007]
The invention according to claim 3 is characterized in that the water covering channel is inclined with respect to the inner channel of the water channel or the water tank, and the height of one end thereof communicated with the suction port of the pump is lower than the other end side. A facility for collecting and transporting the precipitate according to claim 1 or claim 2 .
[0008]
The invention according to claim 4 collects and transfers the sediment according to claim 1 or 2, wherein the suction port of the pump is connected to the water-covered channel, and the water-covered channel is circulated around the connection portion. It is equipment to do.
In accordance with the size and shape of the inner bottom portion of the water tank, the suction port of the pump is connected, and the water-covered passage is circulated around this connection portion. There is no limitation on the length and shape of the water-covered channel to be circulated.
[0009]
The invention according to claim 5 is the deposit according to any one of claims 1 to 4, wherein at least one nozzle that gives the flowing water velocity to the water is disposed in the water-covered channel. It is a facility to collect and transfer.
A long water covering channel is arranged along the inner bottom surface in the direction in which the water tank extends. A nozzle that injects pressure water is disposed in the water-covering channel. The number of nozzles and the interval between nozzles are not limited.
[0010]
[Action]
In the invention according to any one of claims 1 to 5, even when the sediment is deeply accumulated above the water-covered channel when the pump is stopped, the sediment is formed inside the water-covered channel covered above. Voids that do not accumulate remain. This gap becomes a series of gaps over the entire length of the water-covered channel and becomes a pseudo pipeline. If a pump connected to one end of the water-covered channel is operated, water above the accumulated sediment is sucked from the tip of the water suction pipe connected to the other end of the water-covered channel, and pumping is started.
At this time, the water in the gap of the cover channel generates a flowing water speed and a negative pressure corresponding to the pumping amount of the pump. The sediment that comes into contact with the flowing water in the voids is sent in a sliding flow, jumping flow, suspension flow, or the like depending on the flowing water speed. At the same time, the flow channel area of the water-covered channel is enlarged, and the internal negative pressure is increased to some extent, and the sediment that contacts the water-blocked channel collapses and flows in from the lower side. Thereby, the sediment can be collected and transferred in accordance with the flow velocity in the cover channel, that is, the pumping amount of the pump. If the removal of the sediment progresses and the lower side portion of the cover channel is released from the sedimentation of the sediment, the removal of the favorable high concentration sediment by the cover channel is completed.
In practice, it is rare for sediment to deposit uniformly in the water tank. Therefore, the facility of the present invention connects and communicates a pump to one end of the cover channel on the side where the amount of deposits in the water tank is large. On the other hand, the other end of the floodway is operated without being buried, and the sediment is removed. Thereby, a sediment can be made to fall inflow using the suction of the water from the periphery of the other end. Accordingly, it is possible to collect and transfer a precipitate having a higher concentration.
[0011]
In the invention according to claim 2, when the entire water-covered channel is buried in sediment, the water-absorbing tube connected to the other end of the water-covered channel is not only capable of absorbing water at the tip but also a water-absorbing tube extending upward. A water absorption pipe with a vertically long slit or screen so that water can be absorbed from the entire surface. As a result, the collapsed inflow of the sediment due to water absorption is promoted, and the sediment around the water absorption pipe is quickly removed, and the sediment can be easily collected and transferred from the other end of the water-covered channel.
[0012]
In invention of Claim 4, it can be made to circulate according to the magnitude | size of a water tank, and a cover channel can be arrange | positioned long. Moreover, it can be made to circulate in the shape of a square or a polygon according to the shape of the water tank.
[0013]
In the invention according to claim 5, if the pressure water is jetted from the nozzles and the acceleration of the flowing water speed between the nozzles is repeated to maintain the flowing water speed of the entire covered water channel, In some cases, the sediment can be collected and transferred. Moreover, even if the sediment collection and transfer progresses and the buried mud that has become shallow is blown through, the inside of the aquarium is not greatly stirred. Rather, it has the effect of sweeping the sediment in contact with the cover channel, and even in the case of a long cover channel, the sediment can be collected and transferred without significantly impairing the rest of the water tank.
[0014]
As described above, in the facility for collecting and transporting the sediment of the present invention, the lower side portion in contact with the sediment of the cover channel is a rough surface roughness conduit, and the upper portion of the cover channel is equal to the general pipeline. It can be thought of as a pipe with a smooth surface roughness. Therefore, the flowing water speed above the cover channel increases, and reliable flowing water is maintained. The lower part of the cover channel is taken as a conduit with a somewhat reduced flow rate, and the surrounding sediment is crushed and taken into the cover channel.
In addition, the flowing water speed required to flow the sediment in the covered channel that has become a pseudo pipeline is not different from the pipeline transport in general hydraulic transportation. The suction method and the pressure feeding method may be considered the same. Usually, the flowing water speed is about 0.2 m / s to 3.0 m / s. The loss resistance is somewhat larger than that of general hydraulic transportation.
[0015]
【Example】
The embodiment will be described with reference to the drawings. At the inner bottom portion of the water tank 1 of the embodiment shown in FIG. The water covering channel 2 is disposed in a shape covering the upper side, and the terminal end of the water covering channel 2 is connected to and communicated with the suction port of the mud pump 3 installed outside the water tank through the suction pipe 4. As shown in the sectional view of FIG. 2 (a), the starting end of the water-covering channel 2 extends upward in a form that follows the wall surface, and is connected to and communicated with a water absorption pipe 5 that is provided with a screen 6 and opened over almost the entire height.
[0016]
The lower side opening height m of the cover channel 2 is shown in FIG. 4 (f) along with the width b of the cover channel 2 in a sectional view of the vicinity of the cover channel 2 being suspended, and FIG. As shown in the sectional view of the part, it is determined in consideration of the collapsing angle α in the water-covering channel 2 in operation, but if it is too large, it hardly affects the function of the water-blocking channel 2, but rather it is an opening. When the height m is too small, the contact length between the flowing water and the precipitate cannot be sufficiently obtained, and it is disadvantageous in cases other than the purpose of suppressing the mixing concentration of the flowing water and increasing the safety of the equipment.
[0017]
Further, since the negative pressure in the cover channel 2 becomes larger as it is closer to the opening of the suction pipe 4, the opening is higher than the opening height m as shown in m in FIG. 2 (b) and n in FIG. Decreasing the height n is advantageous for delaying the inflow of sediment around the opening of the suction pipe 4, and in particular, when the total length of the cover channel 2 is long, the entire cover channel 2 is inclined and arranged. It is also necessary to install it.
[0018]
Further, if the shape of the water tank 1 in the cross-sectional direction is a flat inner bottom surface as shown in FIG. 3 (d), the precipitates in the water will remain on both sides of the cover channel 2 even after the sediment removal operation. Although the residual sediment deposited with inclination at the corner remains fixed, if it is formed with the inclined wall e and the bottom groove d of the form shown in FIG.
[0019]
The embodiment shown in FIG. 5 is provided with a pedestal 7A for placing the submersible pump 3A at one end of the linearly extending water covering channel 2A so that it can be freely installed on the bottom surface of the aquarium, and opens at the center of the pedestal 7A. The suction pipe 4A extending downward has an opening at the lower end and is connected to and communicated with the end of the cover channel 2A. A part of a cylinder having the same shape as the sectional view shown in FIG. A notch is opened over almost the entire height, and the outer periphery of the opening is connected to and connected to a water absorption pipe 5A covered with a screen 6A. The structure is simple and the installation location can be easily moved. is there.
[0020]
In addition, the form of the water covering channels 2 and 2A in the embodiment of FIGS. 1 and 5 may be a form as shown in FIGS.
[0021]
7 is a side view of the embodiment shown in FIG. 8 (Le) (W), as viewed from the lower grounding surface, and the F section cross-sectional shape of FIG. 7 is opened on only one side as shown in FIG. 9 (W). 8B is provided with a pedestal 7B on which the submersible pump 3B is placed at the upper center of the end circular shape. In this way, the inner peripheral side wall that forms the cover channel 2B, the lower end portion of the suction pipe, and the wall g that partitions the suction port f and the start end c of the cover channel 2B form a grounding partition, and suction from the water suction pipe 5B. The upper water thus made flows from c into the gap a in the cover channel 2 and is sucked into the submersible pump 3B from the end f of the water suction pipe 4B.
[0022]
In the case of the present embodiment, since the length of the cover channel 2B becomes long and sufficient mixing time can be taken, it is easy to increase the mixing concentration, and it is possible to remove the precipitate somewhat broadly. It is also possible to form the water channel by arranging it in a rectangular shape.
[0023]
In the embodiment shown in FIG. 10 (t) as a side fracture view and as shown in FIG. 10 (l), only the outer peripheral side of the cover channel 2C is opened and arranged in a circle, and the submersible pump 3C is provided at the upper center. A pedestal 7C to be placed is provided, and as shown in FIG. 11 (s), a view seen from the lower grounding surface, a water absorption pipe 5C connected to and connected to the cover channel 2C and a partial peripheral wall of the water absorption pipe 5C are extended. A water intake pipe 4C that communicates with the suction port of the submersible pump 3C is connected and opened to the adjacent cover channel 2C separated by the partition wall g formed through the communication path f.
[0024]
FIG. 11 (tsu) shows an expected state diagram in which the submersible pump 3C is operated and the sediment is collected and removed by the a part flowing water in the overpassage channel 2C in a state where the overpassage channel 2C is buried in the sediment h. In the present embodiment, the size can be easily adjusted to the size of the bottom of the aquarium, and in order to make it easy to manufacture, the cover channel can be formed around the quadrangle or polygon.
[0025]
In the case of the embodiments shown in FIGS. 5, 7, and 10, in the case of equipment that is stationary and used in a fixed manner, for example, a part of the pedestal 7A may be used in order to more easily remove the submersible pump. Protruding outward, extending the guide pole upward, guiding the guide pole to raise and lower the submersible pump, and further interposing a seal material between the pedestal 7A and the suction cover of the submersible pump 3A, the dead weight and suction It can be connected to the nectar with negative pressure, making it easy to install and repair the submersible pump.
[0026]
Next, the embodiment shown in FIG. 12 shows a side cross-sectional view of a sewer settling basin in which pressure water is injected into a cover channel to collect and transfer sediment. The inflowing sewage passes through the coarse screen 12, In this facility, the sand mud mixed is allowed to flow down to the next process through the fine screen 13 while sinking into the depression k where the mud pump 3D is installed and the sand sinking depression where the cover channel 2D is installed. In addition, the mud pump 3D is a thing of the form of the Example shown in FIG.
[0027]
The vicinity of the fine screen 13 side start end of the cover channel 2D is shown in detail in FIG. 14, as shown in FIG. 13 (ne), a cross-sectional view in the transverse direction, and in FIG. The water covering channel 2D disposed in the bottom groove j with an opening gap from the bottom surface, and the distribution pipe 9 disposed in parallel above the water covering channel 2D are both fixed to the side inclined wall with a girder 11, Pressure water from the outside is supplied by the pressure water pipe 10 to the nozzle 8 branched from the distribution pipe 9 and arranged at intervals between the start end of the water-covering channel 2D and the top of the head.
[0028]
Fig. 15 (la) shows a view of the periphery of the cover channel 2D buried in the sediment h, and Fig. 15 (m) shows a view of the periphery of the cover channel 2D during operation, but is opened one step deeper than the side inclined wall. By disposing the cover channel 2D in the groove j, the sediment remaining in the outer periphery of the cover channel 2D at the end of the collection transfer is caused to flow out from the opening by flowing water in the cover channel 2D. Cheap.
[0029]
【The invention's effect】
As described above, the present invention not only greatly simplifies the sediment collection and collection / removal equipment, and can reduce the equipment cost, but also stabilizes the water tank with a stable and high concentration in a wide range. The energy saving effect and the economic effect can be greatly reduced because the power cost can be reduced and the maintenance management can be remarkably simplified. There is something.
[Brief description of the drawings]
FIG. 1 is a side sectional view of a water tank according to an embodiment of the present invention.
2 is a cross-sectional view of part A of FIG. 1 according to an embodiment of the present invention, FIG. 2B is a cross-sectional view of part B, and FIG.
FIG. 3 shows two examples (d) (e) of the cross-sectional shape of the D part of FIG. 1 according to the embodiment of the present invention.
4 is an assumed sectional view (f) at the time of burying and an assumed sectional view (g) at the time of operation of part B of FIG. 1 according to the embodiment of the present invention.
FIG. 5 shows an embodiment in which a submersible pump is connected to a linear cover channel according to an embodiment of the present invention.
6 shows an example of the shape of the embodiment water-closure channel of the embodiment of FIG. 1 and the embodiment of FIG. 2 according to an embodiment of the present invention.
FIG. 7 shows an embodiment in which a cover channel that circulates in an oval shape according to an embodiment of the present invention is connected to an underwater pump.
8 is a view of the embodiment of FIG. 7 according to the embodiment of the present invention as viewed from the lower ground plane (H in FIG. 7). FIG. (L) shows the whole, and FIG. Only the part that forms the partition is shown.
FIG. 9 is a cross-sectional view of the F portion of FIG. 7 according to the embodiment of the present invention (C), a cross-section of the water absorption pipe of the E portion (F), and a cross-section below the pump portion of the G portion (Y). ).
FIG. 10 is a side sectional view of an embodiment in which an underwater pump and a water covering channel that circulates in a circular shape according to an embodiment of the present invention are connected, and a front view is shown in FIG.
11 is a view of the embodiment of FIG. 10 as viewed from the lower ground plane, and FIG. 11 shows an assumed sediment state diagram in the vicinity of the sluice channel during operation. .
FIG. 12 is a side sectional view of an embodiment in which water in a cover channel according to an embodiment of the present invention is accelerated by jet water.
13 is a cross-sectional view of the portion J in FIG. 12, and FIG. 13 (a) is a detailed cross-sectional view of the periphery of the floodway.
14 is a detailed view of the vicinity of a water-blocking channel start end of the embodiment of FIG. 12 according to an embodiment of the present invention.
FIG. 15 is a diagram illustrating an assumption when the cross section of the F portion of FIG. 14 according to an embodiment of the present invention is buried, and FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1, Water tank 1D, Sand basin 2, 2A, 2B, 2C, 2D Covered channel 3, 3A, 3B, 3C, 3D Mud pump 4, 4A, 4B, 4C Suction pipe 5, 5A, 5B, 5C, 5D Water absorption pipe 6, 6A, 6B, 6C Screen 7, 7A, 7B, 7C Pedestal 8, Nozzle 9, Distribution pipe 10, Pressure water piping 11, Mud pipe 12, Coarse screen 13, Fine screen a, Cavity in the cover channel b, width of capped channel c, capped channel start end d in FIG. 8, groove e in FIG. 3 (e), inclined side wall f in FIG. 3 (e), communication portion g between suction pipe and covered channel, suction pipe and covered Waterway partition wall h, sediment j, groove k in Fig. 12, muddy pump installation recess m, opening gap between water-covering channel and grounding surface n, opening clearance between suction pipe end and grounding surface r, sedimentation basin flow Direction s, flow direction α in the overflow channel, collapse angle θ in the overwater channel, Breath angle

Claims (5)

  1. A cover channel that covers the entire length and is open at the lower side of the channel is arranged at the inner bottom of the channel and the water tank, and water that has a sufficient flow rate is allowed to flow through the cover channel. A facility for collecting and transporting the sediment collected and transported by collapsing the external sediment from the lower side into the cover channel by feeding the sediment in contact with the flowing water,
    A facility for collecting and transporting the sediment in which the suction port of the pump is connected and connected to one end of the water-covered channel, the tip extends upward to the other end, and a water-absorbing pipe for absorbing water above the sediment is connected and communicated.
  2. The facility for collecting and transporting the sediment according to claim 1, wherein the water absorption pipe extends upward along the wall surface of the water channel or the water tank and is opened with a vertically long slit or screen over almost the entire height thereof.
  3. The said covering channel is inclined with respect to the inner bottom part of the said channel or a water tank, The height of the one end connected to the suction inlet of the said pump is lower than the other end side, The precipitation of Claim 1 or Claim 2 Equipment for collecting and transporting things.
  4.   The facility for collecting and transferring the sediment according to claim 1 or 2, wherein a suction port of a pump is connected to the water-covered channel, and the water-covered channel is circulated around the connection portion.
  5. The facility which collects and transfers the sediment according to any one of claims 1 to 4, wherein at least one nozzle that gives the flowing water velocity to the water is disposed in the water-covered channel.
JP21768499A 1999-06-24 1999-06-24 Equipment for collecting and transferring sediment Expired - Lifetime JP3895505B2 (en)

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JP21768499A JP3895505B2 (en) 1999-06-24 1999-06-24 Equipment for collecting and transferring sediment

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JP2012021383A (en) * 2010-07-13 2012-02-02 Torao Inoue Inverted siphon
JP2012188829A (en) * 2011-03-09 2012-10-04 Torao Inoue Erosion control dam

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JP4766415B2 (en) * 2001-09-26 2011-09-07 虎男 井上 A mud pump that moves the mud openings.
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JP4798523B2 (en) * 2006-06-13 2011-10-19 虎男 井上 A device that recovers and removes long-range precipitates without turbidity.
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JP2012188829A (en) * 2011-03-09 2012-10-04 Torao Inoue Erosion control dam

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