JP6619842B2 - Waste separation system - Google Patents

Description

  The present invention relates to a waste separation system capable of separating solid waste in a liquid from the liquid in a drainage facility.

  Conventionally, rainwater drainage facilities have been provided mainly in urban areas or suburbs to suppress flooding in urban areas or the like during rainwater. For example, when the discharge destination is restricted, a reservoir having a function of suppressing rainwater outflow is installed. A separation tank equipped with a bar screen for separating solid waste in rainwater from rainwater is installed at the rainwater inlet of the reservoir. The bar screen is a so-called fence having a large number of slits, and a large amount of dust is captured by the bar screen when it rains.

  However, since it is necessary to manually remove the dust trapped on the screen every time after raining, it takes a lot of work, and the upstream side of the screen is blocked by dust during heavy rains such as typhoons. There was concern about the effects of backwater. Therefore, in place of the bar screen, a non-powered garbage separation apparatus has been developed (see, for example, Patent Document 1). This dust separating apparatus preferably has a structure in which the screen body is housed in a concrete frame represented by a manhole. When rainwater flows into the waste separator, a vertical swirling flow is generated by the guide plates arranged above and below. Rainwater passes through a punching metal screen arranged in parallel with the longitudinal swirl flow, and flows out downstream between the screen and the wall surface of the concrete frame. On the other hand, the dust contained in the rainwater turns in the screen and is separated from the rainwater and remains in the separation device.

JP 2009-279485 A

  The known non-powered waste separation device separates waste from rainwater without power by realizing longitudinal swirling flow and passing through a screen in a direction different from that of the swirling flow and lower than the flow velocity. be able to. For this reason, compared with the existing bar screen, it is possible to reduce both maintenance costs and the risk of backwater upstream during heavy rain. However, the non-powered waste separation apparatus has a problem to be improved. That is to further increase the waste separation capability in the waste separation device. This applies not only to rainwater but also to separation of wastewater in sewage and combined sewer rainstorm overflow (CSO).

  This invention is made | formed in view of the said subject, The objective aims at further improving the waste separation performance of the waste separation apparatus using a swirl flow.

  In order to achieve the above object, a waste separation system according to an embodiment includes a swirl region for swirling the mixture using an inflow speed of the mixture of solid waste and liquid, and a direction different from the swirl direction of the mixture. A filter device having a filter that allows liquid to pass through but does not allow most of the waste to pass through, a separation tank in which the filter device is installed, and a water tank that is disposed upstream of the separation tank in the inflow direction of the mixture, A water channel connecting the filter device and the water tank, and a rectifying section water channel for adjusting the flow of the mixture from the water tank. In order to achieve the above object, a waste separation system according to a more specific embodiment includes a swirl region for swirling the mixture by using an inflow speed of the mixture of solid waste and liquid, and swirling of the mixture. A filter device having a filter installed in a direction different from the direction and passing a liquid but not allowing most of the waste to pass through, a separation tank in which the filter device is installed, and an upstream side of the separation tank in the inflow direction of the mixture A water tank connecting the filter device and the water tank, and a rectifying section water channel for adjusting the flow of the mixture from the water tank, and the filter device has a rectifying section for swirling the mixture therein. A plane provided with two guide plates arranged so as to open in the direction of the water channel, with one guide plate of the two guide plates provided at an inclination angle for guiding the mixture below the filter device The other guide plate of the two guide plates receives the mixture guided downward by the one guide plate and is directed upward, and approaches the tip direction of the other guide plate from the curved portion. As a result, the curved curved plate is curved downward, and the mixture is separated into waste and liquid without using any power.

  In the waste separation system according to another embodiment, the rectifying section water channel may further have a water channel length that is at least 1.5 times the length in the inner width direction in plan view.

  In the waste separation system according to another embodiment, the separation tank is provided with a plurality of filter devices, and the water tank has a weir that separates the inflow of the mixture into two adjacent filter devices. The weir guides the mixture only to one filter device when the flow rate of the inflowing mixture is small, exceeds the weir when the flow rate of the mixture exceeds a predetermined amount, and in addition to one filter device, the other filter adjacent to it. The apparatus may have a height that can guide the mixture.

  In the waste separation system according to another embodiment, the separation tank further includes three or more filter devices, and the water tank has a weir that separates the inflow of the mixture into the two adjacent filter devices. The number of filter devices may be one less than the number of filter devices, and the plurality of weirs may be formed so as to be higher in the sorting order of the plurality of filter devices that sequentially guide the flow rate of the mixture.

  In the waste separation system according to another embodiment, the water tank may be guided to the filter device by changing the flow direction of the mixture into the water tank.

  In the waste separation system according to another embodiment, an invert that narrows the channel width of the inner bottom portion by a certain length or more from the inner bottom portion and narrower than the upper channel width is further provided on the inner bottom side of the rectifying section water channel. You may prepare.

  The waste separation system according to another embodiment may further include two walls that extend upward from both edges of the upper opening of the invert to a position that does not contact the inner top surface of the rectifying section water channel.

  ADVANTAGE OF THE INVENTION According to this invention, the waste separation performance of the waste separation apparatus using a swirl flow can further be improved.

FIG. 1 shows a transparent perspective view of the vicinity of an exemplary separation tank included in the garbage separation system. FIG. 2 shows a plan view and a longitudinal sectional view of the garbage separation system according to the first embodiment. FIG. 3: shows the top view and longitudinal cross-sectional view of the waste separation system which concern on 2nd Embodiment. FIG. 4: shows the top view and longitudinal cross-sectional view of the garbage separation system which concern on 3rd Embodiment. FIG. 5: shows the top view and longitudinal cross-sectional view of the garbage separation system which concern on 4th Embodiment. FIG. 6: shows the top view, longitudinal cross-sectional view, and XX sectional view of the waste separation system which concerns on 5th Embodiment. FIG. 7: shows the top view and longitudinal cross-sectional view of the waste separation system which concerns on 6th Embodiment. FIG. 8: shows sectional drawing of the modification (8A, 8B) of a rectification area waterway.

  Embodiments of the present invention will be described with reference to the drawings. The embodiments described below do not limit the invention according to the claims, and all the elements and combinations described in the embodiments are essential for the solution of the invention. Is not limited.

  First, a filter device common to the garbage separation system according to each embodiment of the present invention will be described.

  FIG. 1 shows a transparent perspective view of the vicinity of an exemplary separation tank included in the garbage separation system.

  A separation tank 1 shown in FIG. 1 is a component of a waste separation system 2. The separation tank 1 includes a filter device 10 therein. In FIG. 1, only one filter device 10 is provided in the separation tank 1, but two or more filter devices 10 may be provided in the separation tank 1 as described later. The filter device 10 is a device for separating the mixture 7 of solid waste 5 and liquid 6 into waste 5 and liquid 6. The filter device 10 is connected to the rectifying section water channel 30 on the side where the mixture 7 flows. The separation tank 1 is connected to a drainage channel 50 extending on the lengthwise extension of the rectifying section water channel 30. The filter device 10 is disposed in the separation tank 1 so as to be spaced from the inner surface and the inner back surface in at least four directions of the separation tank 1.

  The filter device 10 includes two guide plates 11 and 12 therein. The guide plate 11 and the guide plate 12 are arranged in a form that opens in the direction of the rectifying section water channel 30, in other words, in a form that narrows between both plates from the rectifying section water channel 30 toward the drainage channel 50. The guide plate 11 is a flat plate or a curved plate provided inside the filter device 10 at an inclination angle that guides the mixture 7 flowing in from the rectifying section water channel 30 to the lower side of the filter device 10.

  The guide plate 12 is a curved plate that is corrugated when viewed from the side. The guide plate 12 receives a mixture 7 guided downward by the guide plate 11 and is directed upward, and the leading end of the guide plate 12 from the curved portion. A plate that curves downward as it approaches the direction. Due to the form and arrangement of the guide plates 11 and 12, the mixture 7 flowing into the filter device 10 from the rectifying section water channel 30 swirls between the guide plate 11 and the guide plate 12 to form a longitudinal swirl flow. To do. Further, since there is a gap between the tip of the guide plate 12 and the inner wall of the filter device 10, the dust 5 in the mixture 7 moves below the guide plate 12 and accumulates at the bottom of the filter device 10.

  The filter device 10 includes filters (which may be referred to as “screens”) 13 and 13 so as to sandwich the guide plates 11 and 12 from both sides. The filters 13 and 13 are also members constituting both side surfaces of the filter device 10. In FIG. 1, the filters 13 and 13 are slit-like filters having many gaps that are long in the vertical direction. However, the filters 13 and 13 are not limited to the slit shape, and may have a large number of holes. As described above, the dust 5 travels from the longitudinal swirling flow to the lower side of the guide plate 12, but the liquid 6 passes through the filters 13 and 13 in a direction different from the rotation direction of the swirling flow (substantially perpendicular direction in FIG. 1). To do. The filters 13 and 13 may be ones that cannot pass the dust 5, but preferably have a gap or a hole that allows the dust 5 to pass through a little so that it does not easily block, but makes most of the dust 5 difficult to pass. To do. The liquid 6 that has passed through the filters 13 and 13 passes between the inner surface of the separation tank 1 and the filters 13 and 13 and is discharged from the drainage channel 50.

  In this way, the waste separation system 2 is installed in a swirl region in which the mixture 7 is swung using the inflow speed of the mixture 7 of the solid waste 5 and the liquid 6 and in a direction different from the swirl direction of the mixture 7. And a separation tank 1 provided with a filter device 10 having filters 13 and 13 that allow liquid 6 to pass but not most of waste 5 to pass. For this reason, the mixture 7 can be separated into the waste 5 and the liquid 6 by utilizing the shape or structure of the filter device 10 without using any power.

  Next, the garbage separation system according to each embodiment of the present invention will be described.

<First Embodiment>
FIG. 2 shows a plan view and a longitudinal sectional view of the garbage separation system according to the first embodiment.

  The waste separation system 2 according to the first embodiment includes one filter device 10, a separation tank 1 in which the filter device 10 is installed, and an upstream side in the inflow direction of the mixture 7 with respect to the separation tank 1 (hereinafter simply “upstream”). And a rectifying section water channel 30 for adjusting the flow of the mixture 7 from the water tank 20. The water tank 20 is disposed on the “side” and is connected to the filter device 10 and the water tank 20. An inflow path 40 through which the mixture 7 flows into the water tank 20 is provided on the upstream side of the water tank 20. Further, the separation tank 1 is provided with a drainage channel 50 for mainly discharging the liquid 6 after the dust 5 is separated by the filter device 10.

  In FIG. 2, the mixture 7 or the liquid 6 flows in the direction of the white arrow. As shown in FIG. 2, the waste separation system 2 causes the mixture 7 that has flowed into the water tank 20 from the inflow path 40 to be in a rectified state (a state in which turbulent flow is suppressed as much as possible) in the rectifying section water path 30 and flows into the filter device 10. . The mixture 7 that has flowed into the filter device 10 is swung in the vertical direction in the filter device 10, and the liquid 6 moves from the filters 13 and 13 that are arranged in a direction substantially perpendicular to the swirling direction. On the other hand, the garbage 5 is separated from the liquid 6 and moves to the lower part of the separation tank 1. The liquid 6 that has passed through the filters 13, 13 moves from the separation tank 1 through the drainage channel 50 to the outside of the dust separation system 2. Hereinafter, each part which comprises the waste separation system 2 is demonstrated in detail.

(1) Inflow path In this embodiment, the inflow path 40 is connected to the water tank 20 in a substantially straight line with the rectifying section water path 30 in a plan view.

(2) Water tank The water tank 20 is a space that guides the mixture 7 from the inflow path 40, and preferably has both a length in the width direction in a plan view and a length in the height direction in a cross-sectional view of the inflow path 40. A large space. The water tank 20 is preferably of a size that allows an operator or the like to enter the work and is also referred to as a “human hole”.

(3) Rectification section water channel The rectification section water channel 30 has a function of adjusting the flow of the mixture 7 from the water tank 20 and allowing the mixture 7 to flow straight into the filter device 10 to easily generate a longitudinal swirl flow. It is. In order to increase the flow velocity of the mixture 7, the rectifying section water channel 30 has a width (D) inside the pipe that is narrower than the length in the width direction in the plan view of the water tank 20. This is because when the flow rate of the mixture 7 is increased, the speed of the longitudinal swirl flow in the filter device 10 can be increased, and the separation of the waste 5 and the liquid (rain water, etc.) 6 can be performed more effectively. Here, the width (D) is the horizontal length of the cross section of the internal space of the rectifying section water channel 30 and means the longest distance. For this reason, when the said cross section is a rectangular shape (refer FIG. 8), it says the longest part of the horizontal direction in the said cross sectional shape. Further, when the cross section is circular, horseshoe-shaped, or oval, it means the horizontal diameter of the circle (regardless of whether it is a long diameter or a short diameter).

  The length (L) of the rectifying section water channel 30 connecting the water tank 20 and the filter device 10 is preferably equal to or greater than the inner width (D) of the pipe of the rectifying section water channel 30. A more preferable length (L) is 1.5 times or more of the width (D). That is, the rectifying section water channel 30 preferably has a water channel length (L) of 1.0 or more, more preferably at least 1.5 times or more the length (D) in the inner width direction in plan view. By designing the width (D) and length (L) of the rectifying section water channel 30 in the above relationship, even if turbulent flow occurs in the water tank 20, the flow of the mixture 7 is adjusted in the rectifying section water channel 30, A flow in a direction toward the filter device 10 can be created. Thereby, it is easy to generate a vertical swirl flow in the filter device 10, so that the separation of the dust 5 and the liquid 6 can be performed more effectively.

(4) Separation tank The separation tank 1 is a space in which both the width direction and the height direction are enlarged in a plan view with respect to the filter device 10, and preferably has a square manhole shape. It is preferable to arrange the filter device 10 at a substantially intermediate position in the width direction of the separation tank 1. Further, the downstream rear surface of the separation tank 1 is also preferably separated from the rear surface of the filter device 10. Thereby, it becomes easy to secure the outflow space of the water from the filters 13 and 13 of the filter device 10.

(5) Drainage channel The drainage channel 50 is connected to the separation tank 1, and preferably extends in the length direction of the rectifying section water channel 30.

Second Embodiment
FIG. 3: shows the top view and longitudinal cross-sectional view of the waste separation system which concern on 2nd Embodiment.

  Unlike the waste separation system 2 according to the first embodiment, the waste separation system 2a according to the second embodiment is connected to the water tank 20 so that the inflow passage 40 is substantially perpendicular to the rectifying section water passage 30 in plan view. Has been. In other words, the water tank 20 is a space that changes the inflow direction of the mixture 7 to the water tank 20 and guides it to the filter device 10. Except for the above points, the waste separation system 2 a has the same configuration as the waste separation system 2. Therefore, the description of the first embodiment is substituted for the common part, and the duplicate description is omitted.

  In the waste separation system 2 a, the mixture 7 that has entered from the inflow path 40 changes the direction in the water tank 20 by about 90 degrees and flows into the rectifying section water path 30. In the second embodiment, the role of the rectifying section water channel 30 is more important than in the first embodiment. This is because the direction in which the mixture 7 flows in the water tank 20 changes, so that turbulent flow is likely to occur. The rectifying section water channel 30 preferably has a water channel length (L) of 1.0 or more, more preferably at least 1.5 times or more the length (D) in the inner width direction in plan view. It becomes easy to put the mixture 7 straight from the entrance to the back. As a result, a longitudinal swirl flow is likely to occur in the filter device 10, and the dust 5 and the liquid 6 are more easily separated.

<Third Embodiment>
FIG. 4: shows the top view and longitudinal cross-sectional view of the garbage separation system which concern on 3rd Embodiment.

  In the waste separation system 2b according to the third embodiment, two filter devices 10a and 10b are arranged in the separation tank 1, and the water tank 20 and the filter devices 10a and 10b are connected to each other by rectifying section water channels 30a and 30b, respectively. System. In addition, the waste separation system 2b includes a weir (cough) 21 in the water tank 20, and the amount of the mixture 7 flowing into the water tank 20 is small and the water level does not exceed the weir 21, so that the filter device 10a from the rectifying section water channel 30a. The mixture 7 is led to (see the white arrow in the figure). On the other hand, when the amount of the mixture 7 flowing into the water tank 20 increases and the water level exceeds the weir 21, the mixture 7 is not only guided from the rectifying zone water channel 30a to the filter device 10a, but also from the rectifying zone water channel 30b to the filter device 10b. Also leads to the mixture 7 (see black arrow in the figure). Except for the above points, the waste separation system 2 b has the same configuration as the waste separation system 2. Therefore, the description of the first embodiment is substituted for the common part, and the duplicate description is omitted.

  Thus, in the waste separation system 2b, the separation tank 1 is provided with two filter devices 10a and 10b, and the water tank 20 has a mixture 7 into the two adjacent filter devices 10a and 10b inside. Weir 21 is provided to separate the inflow. The weir 21 guides the mixture 7 only to one filter device 10a when the flow rate of the inflowing mixture 7 is small. When the flow rate of the mixture 7 exceeds a predetermined amount, the weir 21 exceeds the weir 21 and adds to the one filter device 10a. It has a height capable of guiding the mixture 7 to the other adjacent filter device 10b.

  In this embodiment, the weir 21 is formed so as to connect from the inner wall of the inflow channel 40 on the rectifying zone water channel 30b side to the inner wall of the rectifying zone water channel 30a on the rectifying zone water channel 30b side. This is because the mixture 7 flows as smoothly as possible from the inflow path 40 through the water tank 20 toward the rectifying section water path 30a. The height of the weir 21 is not particularly limited as long as it does not reach the inner top surface of the water tank 20, but is preferably about ½ of the height inside the conduit of the inflow passage 40. As a result, when the water level of the mixture 7 passing through the inflow channel 40 is up to half of the height inside the inflow channel 40, the mixture 7 does not cross the weir 21 and passes through the rectifying section water channel 30 a in the filter device 10 a. Used for separation of garbage 5. At this time, the filter device 10b is not used. On the other hand, when the water level of the mixture 7 passing through the inflow passage 40 is a large flow rate that exceeds half of the height inside the inflow passage 40, the mixture 7 passes over the dam 21 and passes through the rectifying section water passage 30b and the filter device. It also flows into 10b. In such a case, the filter device 10a and the filter device 10b are in a full operation state.

  When heavy rain occurs during a typhoon, since a large amount of rainwater flows into the inflow path 40, it is necessary to separate the waste 5 with a plurality of filter devices 10a and 10b. This is because only one filter device 10a cannot process rainwater, and rainwater overflows in urban areas. However, if a plurality of filter devices 10a and 10b are operated even in the case of rain during normal times, the amount of processing per each filter device 10a (10b) is too small, and it is difficult to generate a longitudinal swirl. As a result, the separation performance of the garbage 5 is deteriorated. For this reason, when there is little rainwater etc., only one filter apparatus 10a is operated, the flow rate of the mixture 7 is increased to maintain the separation performance of the waste 5, and when there is much rainwater etc., the two filter apparatuses 10a, It is preferable that 10b be fully operated. The weir 21 functions as a structural member for operating only one or both of the two filter devices 10a and 10b in response to such rainwater.

<Fourth embodiment>
FIG. 5: shows the top view and longitudinal cross-sectional view of the garbage separation system which concern on 4th Embodiment.

  Unlike the waste separation system 2b according to the third embodiment, the waste separation system 2c according to the fourth embodiment is configured so that the inflow passage 40 is substantially perpendicular to the rectifying section water passages 30a and 30b in a plan view. It is connected to the. That is, the water tank 20 is a space that changes the inflow direction of the mixture 7 into the water tank 20 and leads it to the filter devices 10a and 10b. Except for the above points, the waste separation system 2c has the same configuration as the waste separation system 2b. Therefore, the parts other than the common part will be described below, and the description of each of the previous embodiments will be substituted for the common part, and redundant description will be omitted.

  In the waste separation system 2c, the mixture 7 that has entered from the inflow path 40 changes its direction in the water tank 20 by about 90 degrees and flows into the rectifying section water paths 30a and 30b. In 4th Embodiment, the role of the rectification area water channels 30a and 30b becomes more important compared with 3rd Embodiment. This is because the direction in which the mixture 7 flows in the water tank 20 changes, so that turbulent flow is likely to occur. The rectifying section water channels 30a and 30b preferably have a water channel length (L) of 1.0 or more, more preferably at least 1.5 times or more the length (D) in the inner width direction in plan view. It becomes easy to put the mixture 7 straight in the back direction from the inlets of the apparatuses 10a and 10b. As a result, a vertical swirl flow is easily generated in the filter devices 10a and 10b, and the dust 5 and the liquid 6 are more easily separated.

<Fifth Embodiment>
FIG. 6: shows the top view, longitudinal cross-sectional view, and XX sectional view of the garbage separation system which concerns on 5th Embodiment.

  In the waste separation system 2d according to the fifth embodiment, four filter devices 10a, 10b, 10c, 10d are arranged in order in the separation tank 1, and the water tank 20 and the filter devices 10a, 10b, 10c, 10d are arranged. These are systems connected by rectifying section water channels 30a, 30b, 30c, and 30d, respectively. Moreover, the waste separation system 2 d includes weirs 21, 22, and 23 in the water tank 20. Further, the waste separation system 2d is connected to the water tank 20 so that the inflow path 40 is substantially perpendicular to the rectifying section water paths 30a, 30b, 30c, 30d in plan view. On the side closest to the inflow path 40, a rectifying section water path 30a is disposed. And the rectification area water paths 30b, 30c, and 30d are arrange | positioned so that it may distance from the inflow path 40 in the order. The water tank 20 is a space that changes the inflow direction of the mixture 7 to the water tank 20 and guides it to the filter devices 10a, 10b, 10c, and 10d. Except for the above points, the waste separation system 2d has the same configuration as the waste separation system 2c. Therefore, the description of each embodiment described above is substituted for the common part, and the duplicate description is omitted.

  The weirs 21, 22, and 23 are configured to increase in order of the weir 21, the weir 22, and the weir 23, as shown in the cross-sectional view along the line XX. Therefore, the waste separation system 2d guides the mixture 7 from the rectifying section water channel 30a to the filter device 10a when the amount of the mixture 7 flowing into the water tank 20 is small and the water level does not exceed the weir 21 (white in the figure). See the drop arrow). The waste separation system 2d not only guides the mixture 7 from the rectifying section water channel 30a to the filter device 10a when the amount of the mixture 7 flowing into the water tank 20 increases and the water level exceeds the weir 21, but also the rectifying section water channel The mixture 7 is also led from 30b to the filter device 10b (see gray arrow in the figure).

  Furthermore, the waste separation system 2d only guides the mixture 7 from the rectifying section water channels 30a and 30b to the filter devices 10a and 10b when the amount of the mixture 7 flowing into the water tank 20 becomes larger and the water level exceeds the weir 22. In addition, the mixture 7 is guided from the rectifying section water channel 30c to the filter device 10c (see the hatched arrow in the figure). When the amount of the mixture 7 that has flowed into the water tank 20 becomes so large that the waste separation system 2d reaches the water level exceeding the weir 23, the rectifying section water channels 30a, 30b, 30c are passed to the filter devices 10a, 10b, 10c. In addition, the mixture 7 is guided to the filter device 10d from the rectifying section water channel 30d (see the black arrow in the figure).

  In this embodiment, the weir 21 is formed so as to connect from the vicinity of the inflow channel 40 to the inner wall of the rectifying zone water channel 30a on the rectifying zone water channel 30b side. Further, the weir 22 is disposed at substantially the same angle as the weir 21 in a plan view, and is formed so as to reach the inner wall of the rectifying section water passage 30b on the rectifying section water passage 30c side. Furthermore, the weir 23 is disposed at substantially the same angle as the weir 22 in a plan view, and is formed so as to reach the inner wall of the rectifying section water passage 30c on the rectifying section water passage 30d side. The reason why the weirs 21, 22, and 23 are formed in this way is to allow the mixture 7 to flow as smoothly as possible from the inflow path 40 to the rectifying section water paths 30 a, 30 b, 30 c, and 30 d through the water tank 20.

  The heights of the weirs 21, 22, and 23 are not particularly limited as long as they are configured so as not to reach the inner top surface of the water tank 20 and gradually increase in the order of the weir 21, the weir 22, and the weir 23. The weir 21 is preferably about ¼ of the height inside the conduit of the inflow passage 40. In addition, the weir 22 is preferably about 2/4 of the height inside the conduit of the inflow passage 40. Furthermore, the height of the weir 23 is preferably about 3/4 of the height inside the conduit of the inflow passage 40. As a result, when the water level of the mixture 7 passing through the inflow path 40 is up to ¼ of the height inside the inflow path 40, the mixture 7 does not cross the weir 21 but passes through the rectifying section water path 30 a and the filter device 10 a. It is used for separation of garbage 5. At this time, the filter devices 10b, 10c, and 10d are not used.

  In addition, when the water level of the mixture 7 passing through the inflow path 40 exceeds 1/4 of the height inside the inflow path 40 and does not reach 2/4, the mixture 7 passes over the weir 21 and enters the rectifying section water path 30b. It also flows into the filter device 10b. In such a case, the filter device 10a and the filter device 10b are in operation. Further, when the water level of the mixture 7 passing through the inflow path 40 exceeds 2/4 of the height inside the inflow path 40 and does not reach 3/4, the mixture 7 exceeds the weir 22 and reaches the rectifying section water path 30c. Through the filter device 10c. In such a case, the filter devices 10a, 10b, and 10c are in an operating state. Furthermore, when the water level of the mixture 7 passing through the inflow path 40 exceeds 3/4 of the height inside the inflow path 40, the mixture 7 passes over the weir 23 and passes through the rectifying section water path 30d to the filter device 10d. Also flows in. In such a case, the filter devices 10a, 10b, 10c, and 10d are in a full operation state.

  This embodiment is an example in which four filter devices 10a, 10b, 10c, 10d and four rectifying section water channels 30a, 30b, 30c, 30d are arranged. However, you may arrange | position three filter apparatuses 10a etc. and the rectification | straightening area water paths 30a etc., or 5 or more together. In that case, the number of weirs 21 and the like is one less than the number of rectifying section water channels 30a and the like. Thus, in the waste separation system 2d, the separation tank 1 is provided with three or more filter devices 10a, 10b, 10c, 10d, etc., and the water tank 20 has two adjacent filter devices 30a inside. , 30b (filter devices 30b, 30c or filter devices 30c, 30d), etc., the number of weirs 21, 22, 23, etc. separating the inflow of the mixture 7 is one less than the number of filter devices 10a, 10b, 10c, 10d, etc. I have. The plurality of weirs 21, 22, 23, etc. are formed so as to be higher in the order of division of the plurality of filter devices 10 a, 10 b, 10 c, 10 d, etc., which are sequentially guided according to the flow rate of the mixture 7. For this reason, depending on the level of the water level of the mixture 7 flowing from the inflow path 40, only the filter device 10a, the filter devices 10a, 10b, the filter devices 10a, 10b, 10c, the filter devices 10a, 10b, 10c, 10d, etc. It becomes possible.

<Sixth Embodiment>
FIG. 7: shows the top view and longitudinal cross-sectional view of the waste separation system which concerns on 6th Embodiment.

  Unlike the waste separation system 2d according to the fifth embodiment, the waste separation system 2e according to the sixth embodiment is connected to the water tank 20 in parallel with the rectifying section water passages 30a and 30b in a plan view. . The inflow channel 40 is disposed on the side close to the rectifying section water channel 30a. Except for the above points, the waste separation system 2e has the same configuration as the waste separation system 2d. Therefore, other than the common part will be described below, and the description of each embodiment described above will be substituted for the common part, and redundant description will be omitted.

  In this embodiment, the weir 21 is formed so as to connect from the inner wall of the inflow channel 40 on the rectifying zone water channel 30b side to the inner wall of the rectifying zone water channel 30a on the rectifying zone water channel 30b side. Further, the weir 22 is formed so as to extend from a predetermined position in the direction of the rectifying section water channel 30d to the inner wall of the rectifying section water channel 30b on the side of the rectifying section water channel 30c. Furthermore, the weir 23 is formed so as to reach from the predetermined position in the direction of the rectifying section water channel 30d to the inner wall of the rectifying section water channel 30c on the side of the rectifying section water channel 30d. The reason why the weirs 21, 22, and 23 are formed in this way is to allow the mixture 7 to flow as smoothly as possible from the inflow path 40 to the rectifying section water paths 30 a, 30 b, 30 c, and 30 d through the water tank 20.

  The weirs 21, 22, and 23 are configured to increase stepwise in the order of the weir 21, the weir 22, and the weir 23. Therefore, the waste separation system 2e guides the mixture 7 from the rectifying section water channel 30a to the filter device 10a when the amount of the mixture 7 flowing into the water tank 20 is small and the water level does not exceed the weir 21 (white in the figure). See the drop arrow). The waste separation system 2e not only guides the mixture 7 from the rectifying section water channel 30a to the filter device 10a when the amount of the mixture 7 flowing into the water tank 20 increases and the water level exceeds the weir 21, but also the rectifying section water channel The mixture 7 is also led from 30b to the filter device 10b (see gray arrow in the figure). Further, the waste separation system 2e only guides the mixture 7 from the rectifying section water channels 30a and 30b to the filter devices 10a and 10b when the amount of the mixture 7 flowing into the water tank 20 becomes larger and the water level exceeds the weir 22. In addition, the mixture 7 is guided from the rectifying section water channel 30c to the filter device 10c (see the hatched arrow in the figure). When the amount of the mixture 7 that has flowed into the water tank 20 becomes very large and reaches the water level exceeding the weir 23, the dust separation system 2e goes from the rectifying section water channels 30a, 30b, 30c to the filter devices 10a, 10b, 10c. In addition, the mixture 7 is guided to the filter device 10d from the rectifying section water channel 30d (see the black arrow in the figure).

<Modification>
FIG. 8: shows sectional drawing of the modification (8A, 8B) of a rectification area waterway.

  The rectifying section water channel 30 (or 30a) shown in FIG. 8 (8A) is an invert 60 that can form a narrow water channel in the internal space of width D × height H by narrowing the cross-sectional area of the internal space. Can be provided. The invert 60 is located on the inner bottom side of the rectifying section water channel 30 (or 30a), and the water channel width (= D) of the inner bottom is higher than the length h1 by a certain length (= h1) from the inner bottom. It is a component made narrower than the water channel width (= D). Further, the invert 60 preferably has the same length as the length (= L) of the rectifying section water channel 30 (or 30a). However, the invert 60 may be a component provided only in the vicinity of the tip of the rectifying section water channel 30 (or 30a) on the filter device 10 (or 10a) side. In that case, the length of the invert 60 is shorter than the length (= L) of the rectifying section water channel 30 (or 30a). When the invert 60 having such a configuration is arranged inside the rectifying section water channel 30 (or 30a), the water surface S can be made higher even when the flow rate of the mixture 7 flowing into the water tank 20 is small. As a result, the flow rate of the mixture 7 can be further increased, so that a longitudinal swirl flow can be easily generated in the filter device 10 (or 10a).

  The rectifying section water channel 30b (or 30c) shown in FIG. 8 (8B) is added to the invert 60 in the internal space of width D × height H, and both sides of the upper surface of the narrow water channel formed by the invert 60. Walls (hereinafter referred to as “rectifying walls”) 61 and 61 extending upward from the wall by a length (h2-h1) may be provided. The rectifying walls 61 and 61 may be connected to the invert 60 by any method. For example, the rectifying walls 61 and 61 can be connected to the invert 60 by an exemplary method such as fitting, bonding, and bolting. The rectifying walls 61 and 61 may be disposed inside the rectifying section water channel 30 (or 30a), but particularly when the separation tank 1 includes three or more filter devices 10a, 10b, 10c, 10d, etc. 7 is preferably arranged in the second (or third) rectifying section water channel 30b (or 30c) in the order of inflow. For example, when three or more filter devices 10a, 10b, 10c, 10d, etc. are provided in the separation tank 1, only the invert 60 is provided in the rectifying section water channel 30a, and the invert 60 and the rectifying are provided in the rectifying section water channel 30b. Walls 61 and 61 can be provided. Thus, by providing the two rectifying walls 61 and 61 that extend upward from both edges of the upper opening of the invert 60 to a position that does not contact the inner top surface of the rectifying section water passage 30b (or 30c), The width can be divided into three. As a result, the rectifying section water channel 30b (or 30c) is divided into three parts when the width (D) and the length (L) of the rectifying section water channel 30 are 1.5 times or more than the width B of the water channel length (L). One channel width is 1 / 3D, and the channel length can be 4.5 times the channel width (1 / 3D). When the turbulent flow is strong due to the large flow rate, the rectification effect is enhanced. be able to.

<Other embodiments>
As mentioned above, although each embodiment and modification of this invention were demonstrated, this invention is not restricted to each embodiment and modification mentioned above, It can implement in another various aspect.

  For example, the separation tank 1 may not serve as a manhole. Moreover, the water tank 20 is a water diversion tank which has a function which divides the mixture 7 in the 3rd-6th embodiment. The water tank 20 is also a human hole having a function as a space in which a person can enter and work. However, the water tank 20 may be a tank that does not have the functions of a water diversion tank and a human hole.

  The rectifying section water channel 30 or the like preferably has a water channel length of at least 1.5 times or more the length in the inner width direction in plan view, but is not limited to this length, for example, 1 time or 1 It may be more than twice to less than 1.5 times.

  The inflow channel 40 in the second embodiment, the fourth embodiment, and the fifth embodiment is a pipeline that extends in a direction substantially perpendicular to the direction of the rectifying section water channel 30 and the like. However, the angle between the inflow channel 40 and the rectifying section water channel 30 and the like is not limited to 90 degrees, and the inflow channel 40 is connected to the water tank 20 so as to form other angles such as 10 degrees, 45 degrees, and 120 degrees. May be. Furthermore, in the plan view of FIGS. 2 to 7, the inflow channel 40 may be connected to the water tank 20 from above (in the front direction of the paper surface) or below (backward direction with respect to the paper surface) in plan view.

  Moreover, you may combine how the various structure parts in each above-mentioned embodiment go beyond each embodiment except the case where it cannot mutually combine.

  The present invention can be used to separate waste from a mixture of liquid such as water and solid waste.

1 Separation tank 2, 2a, 2b, 2c, 2d, 2e Garbage separation system 5 Garbage 6 Liquid 7 Mixture 10, 10a, 10b, 10c, 10d Filter device 13 Filter 20 Water tank 21, 22, 23 Weir 30, 30a, 30b, 30c, 30d Rectification section waterway 60 Invert 61 Rectification wall (wall)

Claims (6)

A swirl region for swirling the mixture using the inflow speed of the mixture of solid waste and liquid;
A filter device having a filter installed in a direction different from the swirling direction of the mixture and allowing the liquid to pass therethrough but not allowing most of the dust to pass through;
A separation tank in which the filter device is installed;
A water tank disposed on the upstream side in the inflow direction of the mixture with respect to the separation tank;
A rectifying section water channel for adjusting the flow of the mixture from the water tank, which is a water channel connecting the filter device and the water tank;
With
The filter device includes therein two guide plates arranged in a form opening in the direction of the rectifying section water channel in order to swirl the mixture,
One of the two guide plates is a flat plate provided at an inclination angle that guides the mixture below the filter device,
A curve in which the other guide plate of the two guide plates is directed upward by receiving the mixture guided downward by the one guide plate, and a tip direction of the other guide plate from the curve portion And a curved plate with a waveform that curves downward as it approaches, and using the inflow speed of the mixture, the mixture is separated into the waste and the liquid ,
A refuse separation system comprising an invert on the inner bottom side of the rectifying section water channel, wherein the water width of the inner bottom portion is narrower than the upper water channel width by a certain length or more than the inner bottom portion .   The waste separation system according to claim 1, further comprising two walls extending upward from both edges of the upper opening of the invert to a position where the wall does not contact the inner top surface of the rectifying section water channel. The waste separation system according to claim 1 or 2 , wherein the rectifying section water channel has a water channel length of at least 1.5 times the length in the inner width direction in plan view. The separation tank is provided with a plurality of the filter devices,
The water tank includes a weir that divides the inflow of the mixture into the two adjacent filter devices,
The weir guides the mixture only to one of the filter devices when the flow rate of the mixture flowing in is small. When the flow rate of the mixture exceeds a predetermined amount, the weir crosses the weir and adds to the one filter device. The refuse separation system according to any one of claims 1 to 3, having a height capable of guiding the mixture to the other filter device adjacent to the filter device. The separation tank is provided with three or more filter devices,
The water tank is provided with a weir that divides the inflow of the mixture into two adjacent filter devices, one less than the number of the filter devices,
The waste separation system according to claim 4 , wherein the plurality of weirs are formed so as to be higher in a sorting order of the plurality of filter devices that sequentially guide the flow rate of the mixture. The said water tank is a refuse separation system of any one of Claim 1 to 5 which changes the inflow direction of the said mixture into the said water tank, and guides it to the said filter apparatus.